CN110668268B

CN110668268B - Draw-bar box type labor-saving adjustable hose car

Info

Publication number: CN110668268B
Application number: CN201910857170.4A
Authority: CN
Inventors: 叶晓东; 其他发明人请求不公开姓名
Original assignee: Ningbo Daye Garden Industry Co Ltd
Current assignee: Ningbo Daye Garden Industry Co Ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-10-23
Anticipated expiration: 2039-08-28
Also published as: CN110668268A

Abstract

The draw-bar box type labor-saving adjustable water pipe vehicle is a draw-bar box type water pipe vehicle with a pipe coiling device of a position lock provided with a function curve concave channel and a ball crank pin and a multipurpose water pipe vehicle with an electromagnetic pump valve, wherein the cam profile curves of the groove sides of an inner cam groove (53n) and an outer cam groove (53w) of the position lock are partially similar constant-speed spirals according to the polar coordinate equation of an Archimedes spiral taking an axis (03) as a pole; a ball (80C) with a short transverse pin (80d) is arranged on a concave ball groove at the end part of the locking shaft (80) of the crank pin (60), and a ball bearing (83f) is arranged on the follow-up rotating shaft (83) to form a ball crank pin; the water hose car is provided with an electromagnetic pump valve (84) so as to meet the requirements of high pressure and flow regulation. The novel high-pressure water pump has the advantages of overcoming the problem that occasionally the water pump cannot be clamped, ensuring the integral stable operation and meeting the requirements of high pressure and flow regulation.

Description

Draw-bar box type labor-saving adjustable hose car

Technical Field

The invention relates to the technical field of pipeline winders and hose car devices, in particular to a pull rod box type labor-saving adjustable multipurpose hose car with a joint electromagnetic pump valve, which is particularly used for a hose winder, an improved hose winder and a hose car with a quick buckle on the basis of a garden hose car and is provided with a functional curve concave channel and a position lock of a ball crank pin.

Background

The existing garden hose cart for storing hoses or cables is moved by an operator pushing a handle. But the existing metal handles have poor hand feeling; there is a certain inconvenience and difficulty in sheathing the plastic hose around the bent metal handle. In addition, in order to reduce the size for storage and storage, some existing metal handles, also called as armrest tubes and frame tubes, adopt a rotary connecting piece, and the adjusting mechanism is axially clutched by a connected gear ring, a gear, a spring and a key to rotate and adjust the handle; but sometimes has the problems that the locking operation is not easy to control in use and the reliability and the stability are not enough; the above-described gear ring and gear structure, while useful, occasionally fails and seizes. Moreover, if a tool box with a tool and a quick connector are arranged, convenience is brought to an operator; if the quick buckle is arranged, the operation is convenient; the problem that the pipe coiling device of the original crank pin position lock is occasionally out of order and insufficient in reliability and stability is a long-standing problem, and the international market forecast needs a draw-bar box type labor-saving adjustable water pipe trolley with a high-precision position lock and an electromagnetic pump valve.

Disclosure of Invention

The invention relates to the technical field of pipeline winders and water hose carts, in particular to an improvement of a garden water hose cart which can be particularly used for winding and moving hoses or cables and has the function of a tool box, and comprises an air blowing method for sleeving a plastic hose outside a metal handle, an axial clutch adjusting mechanism comprising a rotary connecting piece, such as an integral gear ring and an improvement of a gear, and a tool box and a quick connector which are arranged along with the rotation of the connecting piece, so that convenience is brought to an operator; the method is characterized in that: the improvement of the multifunctional novel garden hose car comprises blind rivets 1, self-tapping screws 2, fastening nuts 3, a left fixing support 4, a bent connecting pipe 5, a sealing ring 6, an inner clamping joint 7, a water stop ring 8, an EPDM sealing ring 9, an Oldham's nut joint 10, a foot pipe fixing plate 11, a base 12, a wheel cover 13, a wheel buckle 14, a wheel 15, an electroplated wheel shaft 16, a lower support 17, a wheel axle sleeve 18, a fixing frame 19, a wheel disc 20, a rocker seat 21, a positioner 22, a rocker sleeve 23, a handle buckle 24, a handle cover 25, a rocker 26, a right fixing support 27, a tool box 28, a tool box support 29, a metal handle 30, a plastic hose 31, an upper gear ring 33, a tooth 32, a lower gear ring 35, a key 34 and a quick connector K10 of a rotary type connecting piece; outside the metal handle 30, in order to feel good, the improvement of the invention is to suit or straight or bent plastic hose 31, the sheathing method is air-blowing method, which is formed by extending a thin air gun head into the gap between the outside of the metal handle 30 and the plastic hose 31 suited on the handle and blowing and sending the air; some hose car models do not have a rotary connector, as shown in fig. 7; as an improvement, the water hose car with the rotary connecting piece is designed as shown in figure 12; in order to improve the phenomenon of occasional jamming, the improvement of the invention is that an oblique chamfer 32C is arranged at the local part of each tooth of the gear 32, or the chamfer is arranged on the side surface of the tooth, or the chamfer is arranged on the circumferential surface of the tooth, especially the oblique chamfer is an oblique angle, such as 30 degrees and 60 degrees, but not 45 degrees; meanwhile, each tooth of the internal gear of the upper conjoined gear ring 33 of the rotary connecting piece is locally provided with an oblique chamfer 33C, or the chamfer is arranged on the side surface of the tooth, or the chamfer is arranged on the circumferential surface of the tooth, especially the oblique chamfer is oblique angle, such as 30 degrees and 60 degrees, but not 45 degrees; for refinement, the chamfer 33C and the chamfer 32C are processed to have a parabolic shape when a plastic mold is engraved or by CNC processing. The key 34 is provided with 2 clamping feet 34C for being installed and pressed. For convenience, the invention has another improvement that the quick connector K10 is provided and consists of a plastic-coated connector screw cap K1, a connector screw cap K2, a quick connector body K3, 3 clamping heads K4, a quick connector spring K5, a movable sleeve plastic-coated K6 and a movable sleeve K7 which are assembled in sequence; the quick connector K10 is connected with an adapter which consists of the elbow pipe 5, a sealing ring 6, an inner clamping connector 7, a water stop ring 8, an EPDM sealing ring 9 and an European tooth female connector 10 which are assembled in sequence; the movable plastic-coated K6 of the quick connector K10 is provided with an arrow indication K6B to clearly indicate that the connector can be pushed away in the direction of the arrow. For the convenience of operators, the invention has a further improvement that the tool box is provided with a tool box, and consists of a tool box 28 and 2 tool box supports 29, wherein the two ends of the tool box 28 are respectively provided with a hook which can be hung on a short shaft of each tool box support 29, and the tool box supports 29 are provided with C-shaped cutting sleeves so as to be clamped on a metal handle 30. In order to facilitate the assembling and disassembling, another important improvement of the present invention is to provide a quick buckle 36, see the perspective view 18 of the garden water-tube cart with the quick buckle, and see fig. 19-25, the quick buckle is installed on the left and right fixed plastic frames 41, and is composed of a knob 37, a movable post 38, a clamping seat 39, and a movable arc block 40, the fixed plastic frame 41 is provided with an installation hole for installing the quick buckle, a half arc piece 41a is provided in the installation hole for installing one side of the metal handle 30, and the other side of the metal handle 30 is assembled and disassembled by the quick buckle, specifically, the movable arc block 40 is used for pressing the metal handle 30; the movable arc block 40 is arranged in the clamping seat 39 and can move back and forth; the clamping seat 39 is arranged on the mounting hole position of the fixed plastic frame 41 for mounting the quick buckle; the back of the movable order arc block 40 is provided with the movable order column 38; the exterior of the piston rod 38 is threadedly connected to the knob 37.

In the above-mentioned quick-snap solution, the knob 37 is provided with an internal screw 37a inside so as to match with the external thread 38a of the movable column 38.

In the above-mentioned scheme of quick snap, the outside of the knob 37 is provided with a peripheral flange 37b to be matched with an inner clamping leg 39a of the clamping seat 39.

In the above-mentioned scheme of quick snap, the clamp base 39 is provided with 4 inner clamp feet 39a, so as to be matched with the peripheral flanging 37b arranged outside the knob 37.

In the above-mentioned scheme of the quick buckle, the clamping base 39 is provided with 2 outer clamping legs 39b so as to be matched with the mounting hole position of the fixed plastic frame 41 for mounting the quick buckle.

In the above-mentioned solution of quick buckle, the clamping seat 39 is provided with 4 inner sliding rails 39c so as to be matched with 4 outer sliding rails 38b provided outside the movable column 38.

In the above-mentioned solution of quick snap, 4 inner slide ways 38d are provided inside the movable ring column 38, so as to match with the movable ring arc 40.

In the above-mentioned scheme of quick fastening, the exterior of the movable arc block 40 is provided with 4 outer slideways 40a, so as to match with 4 inner slideways 38d provided inside the movable column 38.

In the above-mentioned scheme of quick fastening, the end of the 4 outer slideways 40a provided outside the movable arc block 40 is provided with an arc pressing block 40b so as to be matched with the metal handle 30 to be pressed and matched with the arc piece 38c of the movable column 38.

In the above-mentioned scheme of the quick buckle, the mounting hole site for mounting the quick buckle of the fixed plastic frame 41 is further provided with 4 sliding grooves 41b, which is for facilitating auxiliary matching with the 4 outer sliding ways 40a arranged outside the movable arc block 40.

The portable multipurpose hose car has the advantages that the portable multipurpose hose car is convenient to manufacture due to the air blowing method of the sleeved plastic hose; the handle is added with a plastic hose to improve the hand feeling, and the lower conjoined gear ring and the gear of the rotary connecting piece are provided with an oblique chamfer angle, which is beneficial to anti-jamming; if the tool box and the quick connector are arranged, the multifunctional novel garden hose car brings convenience and multiple comprehensive effects to an operator, and further improves the quality of the multifunctional novel garden hose car. Some hose car styles do not adorn the rotary type connecting piece, some hose cars are equipped with the rotary type connecting piece, some hose car handlebars 30 do not overlap outward, some hose car covers have the plastic hose 31 of hand (hold), some hose cars do not have the tool holder, and some hose cars have the tool holder 28, some hose cars do not have quick-operation joint, and some hose cars have quick-operation joint K10, so install additional collocation and make the style many, give the multiple selection of customer, the multiple style of hose car has been increased, especially the scheme of quick buckle has been added, the product market has been further developed.

The technical scheme adopted by the invention on the hose reel of the hose car for solving the technical problems is as follows:

a portable multipurpose water pipe vehicle is a modified portable hand-push electric multipurpose water pipe vehicle with a pipe coiling device of a function curve concave pipeline matched with a position lock of a ball crank pin and a multipurpose water pipe vehicle with a connector and an electromagnetic pump valve on the basis of a garden water pipe vehicle with a hose or a cable for coiling and a quick buckle, wherein the pipe coiling device with the position lock is a locking device for the pipe coiling device and consists of a ball crank pin 60, inner and outer cam grooves arranged at the bottom surface of a damping box shell 53, a damping turntable 56, a damping box cover 61 and a pinion 59; the utility model provides a damping lock reelpipe ware, by the wheel shell assembly, the centrifugation is retracted device slowly, and side piston damping device to and position lock constitutes its characterized in that: the centrifugal block of the centrifugal slow retraction device is a small sliding block which is pulled by each group of two mutually used tension springs; the side piston damping device is a small piston which is arranged on the side surface of a centrifugal block of the centrifugal slow retraction device and is damped with the centrifugal block; in addition, the position lock is a crank pin which runs along an inner cam groove and an outer cam groove with a plurality of control points at different distances on a plane; the wheel shell assembly of the pipe coiling device consists of an upper shell 63, an upper large disc 62, a spiral spring 61, an inner disc 55, a large gear 54, a main wheel 64, a pipe joint 65, a lower disc 66, a lower shell 67, a long pin 68 and a support 69; the upper shell and the lower shell of the pipe coiling device are assembled into a shell of the pipe coiling device; the shell is connected to the hose car through a long pin 68 and a bracket 69 in a micro-rotation manner; a lower disc 66 and an inner disc 55 which are provided with rotating shafts are arranged in a hole of a central shaft of the shell; the inner disc 55 and the upper large disc 62 form a retraction device through a spiral spring 61; the inner disc 55 is fixedly provided with a large gear 54, is inserted into an upper small inner cover 71 and is fixedly mounted on the upper shell 63 through an upper small outer cover 72; thus, the bull gear 54 is virtually stationary with respect to the housing of the roller tube; the groove on the shaft of the immovable inner disc 55 is fixedly provided with one end of a spiral spring 61 close to the center of a circle, the outer ring of the spiral spring is assembled on a clamping column at the edge of a rotating main wheel 64 and is covered by an upper large disc 62 through four clamping positions at the edge; the main wheel 64 is provided with a pipe joint 65, the main wheel 64 and the lower disc 66 are fixedly connected into a whole through screws, and the main wheel 64 is rotatably sleeved and inserted on the smooth outer shaft surface of the central large pipe of the lower shell 67 by the central large pipe shaft of the lower disc 66; that is, the upper plate 62, the main wheel 64, the pipe joint 65 and the lower plate 66 are rotated relative to the housing; the pinion 59 is engaged with the large gear and drives the damping turntable 56 of the damping box shell 53 fitted on the main wheel 64; the side piston damping device is a small piston which is arranged on the side surface of a centrifugal block of the centrifugal slow retraction device and is damped with the centrifugal block; the side piston damping device is composed of a damping box shell 53, a side piston 57, a compression spring 58, a small slide block 51, a tension spring 52, a damping rotary disc 56 and a damping box (61a and a pinion 59), and is characterized in that the compression spring 58 arranged at the rear part of the side piston 57 of the side piston damping device is a compression spring with larger two ends and smaller middle part, the position lock is a ball crank pin which runs along a plane inner and outer cam groove with multiple far and near control points, the position lock device is composed of a ball crank pin 60, an inner and outer cam groove with multiple far and near control points, a damping rotary disc 56, a damping box cover 61 and a pinion 59, and is characterized in that a lock line shaft 80 of the crank pin is vertical to a connecting rod shaft 82, a rotating shaft 83 is vertical to the connecting rod shaft 82, the lock line shaft 80 is parallel to the rotating shaft 83 and extends reversely, and the lock line shaft 80 of the ball crank pin is movably inserted into the inner cam groove with multiple far and near control points An outer cam groove, and the follower shaft 83 is movably inserted into the rotating hole 56c of the damping rotating disc 56, especially the follower shaft 83 is longer than the locking shaft 80, and the locking and the forward and reverse operation are reliably realized; the bottom surface of the box shell 53 is also provided with an observation hole I53a and an observation hole II53 b; the bottom surface of the damper box case 53 is provided with front and

rear projections

53c and 53d and a locking projection 53e.

The reelpipe of matching position lock is with retracting damping device slowly, by damping box shell 53, little slider 51, extension spring 52, damping carousel 56, damping lid 61a and pinion 59 constitute, its characterized in that: the centrifugal block of the centrifugal slow retraction device is pulled by two tension springs, one end of each tension spring is mutually pulled and a plurality of small slide blocks 51 which stretch in a slide way 56a in the damping turntable 56; the damping box shell 53 is fixed on the main wheel 64 by screws; the shaft of the damping turntable 56 is movably inserted into the holes of the damping box shell 53 and the damping box cover 61a and is parallel to the main wheel shaft; the upper end of the shaft of the damping turntable 56 is provided with a pinion 59; the small gear is in meshing transmission with a large gear 54 fixedly arranged on an inner disc 55; a radial cross-shaped channel is arranged in the damping turntable 56, and each group of two small sliding blocks which are mutually pulled by tension springs are arranged in the damping turntable; the number of the tension springs is 2, the number of the small sliding blocks is 4, and one end of each tension spring is connected with the small sliding block; the small sliding block 51 is characterized in that: a cylinder for placing the tension spring 52 and a groove for placing the tension spring 52 are arranged in each small slide block 51; the outside of each small slide block 51 is provided with a peach-shaped body, namely, one side is a convex arc surface and the other side is a concave arc surface, particularly, the concave arc surface is a parabolic surface; the convex arc surface is an involute surface; one side of the peach-shaped body of each small sliding block is a concave arc surface, particularly a parabolic surface, and when the small sliding blocks are centrifugally rotated and extended out, the small sliding blocks are expected to ideally follow the parabolic law and contact with the interior of the damping box shell 53; the other side of the peach-shaped body of each small sliding block is a convex cambered surface, in particular an involute-shaped surface, when the small sliding blocks are centrifugally rotated and extended out, the small sliding blocks are expected to ideally follow an involute law, namely a gear meshing law, and are in meshing contact with an edge piston 57 which is expected to be meshed with the small sliding blocks and is arranged on the inner side edge of the damping box cover 53; when the two parts do not rotate or rotate at a slow speed, the two parts do not contact with each other; when the device is rotated rapidly, namely when the device is rotated centrifugally and extends out, the peach-shaped fishes of the small sliding blocks 51 which are connected one by one are meshed with the side piston (57) and also contacted with the inner part of the damping box shell 53, and the comprehensive damping effect of collision, meshing, sliding and obstruction is actually realized; the small gear fixedly mounted on the end shaft 56b of the damping turntable (56) rotates around the shaft of the small gear and revolves around the shaft of the large gear of the pipe winder, and from the comprehensive description of the wheel shell assembly, the side piston damping device and the position lock, the planetary transmission ratio of the damping turntable is relatively large, and the small slide block can be extended by enough centrifugal rotation. The end shaft 56b of the damping rotor 56 is hexagonal or square for mounting a pinion, the axial core of said end shaft being provided with an axial hole for self-tapping screw mounting. The slide way 56a of the damping rotary disc 56 is wide outside for the slide block, the central part is narrow and only the spring can pass through, thus preventing the possibility of radial deviation of more one side and less one side when the small slide block retracts; and simultaneously, the small sliding blocks which are arranged one after another are beneficial to centrifugally extending out to be contacted with the side piston for damping.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the pipe coiling device with the position lock is a locking device and consists of a ball crank pin 60, an inner cam groove and an outer cam groove which are arranged at the bottom surface of a damping box shell 53, a damping turntable 56, a damping box cover 61 and a pinion 59; the pipe coiling device consists of a wheel shell assembly, a damping lock containing a centrifugal slow retraction device and a side piston damping device and a position lock, wherein a centrifugal block of the centrifugal slow retraction device is a small sliding block which is pulled by each group of two mutually used tension springs; the side piston damping device is a side piston which is provided with a spring, is arranged on the side surface of a centrifugal block of the centrifugal slow retraction device and is damped with the centrifugal block; the position locking device consists of a ball crank pin 60, an inner cam groove and an outer cam groove which are arranged on the bottom surface of the damping box shell 53 and have multiple control points along the plane, a damping rotary disc 56, a damping box cover 61 and a pinion 59, wherein a lock line shaft 80 of the crank pin is vertical to a connecting rod shaft 82, a follow-up rotating shaft 83 is also vertical to the connecting rod shaft 82, and the lock line shaft 80 is parallel to the follow-up rotating shaft 83 and extends reversely to form the ball crank pin; the lock line shaft 80 of the ball crank handle pin is movably inserted into the inner cam groove and the outer cam groove, the follower rotating shaft 83 is movably inserted into the rotating hole 56c of the damping rotating disc 56, and the follower rotating shaft 83 is longer than the lock line shaft 80; the bottom surface of the damping box shell 53 is provided with a front convex part 53c, a rear convex part 53d and a locking convex part 53 e;

it is characterized in that the compression spring 58 arranged at the rear part of the side piston 57 of the side piston damping device is a compression spring with two larger ends and a smaller middle part; the position lock is a ball crank pin which runs along an inner cam groove 53n and an outer cam groove 53w with a plurality of control points at different distances along a plane; the cam profile curve of the groove edge of the inner cam groove 53n is a constant speed spiral which is similar to a part of the constant speed spiral according to the polar coordinate equation of the Archimedes spiral taking the shaft center (03) as the pole, so as to be close to the cam profile curve of the Archimedes spiral which can change constant speed rotation into constant speed movement; the cam profile curve of the groove edge of the outer cam groove 53w is also a spiral of a polar equation partially approximating a similar archimedean spiral; the inner cam and the outer cam are parallel in profile curve part; a ball 80C with a short transverse pin 80d is arranged on a concave ball groove at the end part of the lock line shaft 80 of the ball crank pin 60 of the position lock device, and a ball bearing 83f is arranged on the follow-up rotating shaft 83 to form the ball crank pin so as to ensure the position lock; the hose car is provided with an electromagnetic pump valve 84 so as to meet the requirements of high pressure and flow regulation. A ball 80C with a short transverse pin 80d is arranged on a concave ball groove at the end part of the lock line shaft 80 of the ball crank pin 60 of the position lock device, and a ball bearing 83f is arranged on the follow-up rotating shaft 83 to form the ball crank pin so as to ensure the position lock; the hose car is provided with an electromagnetic pump valve 84 so as to meet the requirements of high pressure and flow regulation.

The ball crank pin 60 of the position lock device has a lock line shaft 80 perpendicular to the link shaft 82 and a follower shaft 83 also perpendicular to the link shaft 82, and the lock line shaft 80 and the follower shaft 83 extend in parallel and in opposite directions to form a ball crank pin; the lock line shaft 80 of the ball crank handle pin is movably inserted into the inner cam groove and the outer cam groove, the follower rotating shaft 83 is movably inserted into the rotating hole 56c of the damping rotating disc 56, and the follower rotating shaft 83 is longer than the lock line shaft 80; the bottom surface of the damping box shell 53 is provided with a front convex part 53c, a rear convex part 53d and a locking convex part 53 e; the ball crank pin has good effect.

An operator firstly puts the portable multipurpose water pipe vehicle, namely the portable hand-push electric multipurpose water pipe vehicle with a connector and an electromagnetic pump valve into a use range; a shell of a damping lock pipe coiling device consists of a wheel shell assembly, a centrifugal slow retraction device, a side piston damping device and a position lock; the wheel shell assembly of the pipe coiling device of the water hose car consists of an upper shell 63, an upper large disc 62, a spiral spring 61, an inner disc 55, a large gear 54, a main wheel 64, a pipe joint 65, a lower disc 66 and a lower shell 67; a lower disc 66 and an inner disc 55 which are provided with rotating shafts are arranged in a hole of a central shaft of the shell; the inner disc 55 and the upper large disc 62 form a retraction device through a spiral spring 61; the inner disc 55 is fixedly provided with a large gear 54, is inserted into an upper small inner cover 71 and is fixedly mounted on the upper shell 63 through an upper small outer cover 72; one end of a spiral spring 61 is fixedly arranged on a groove on the shaft of the fixed inner disc 55, the outer ring of the spiral spring is assembled on a clamping column of a main wheel 64 and is covered by an upper large disc 62 through clamping positions at four edges; so the bull gear is relatively immobile; when an operator pulls the pipeline, the upper large disc 62, the main wheel 64, the pipe joint 65 and the lower disc 66 are rotated relative to the outer shell because the main wheel 64 is provided with the pipe joint 65 on which the pipeline is installed and wound, the main wheel 64 and the lower disc 66 are fixedly connected into a whole through screws, and the central large pipe shaft of the lower disc 66 is rotatably sleeved and inserted on the smooth outer shaft surface of the central large pipe of the lower shell 67; when the pipeline is pulled out, the main wheel 64 drives the pinion 59, so that the damping turntable 56 drives one end locking shaft 80 of the crank pin 60 to run along an inner groove which is collided with the bottom surface of the damping box shell 53; when the pulling is stopped, the lock-running shaft 80 will be locked at the lock-stopping protrusion 53e due to the reaction of the spring; the point is pulled again and the pipeline is loosened, the pin shaft end, namely the locking shaft 80, is not locked along the outer ring groove, and the hose or the cable is automatically rewound under the reaction force of the spring 61; if it is too fast, the pinion 59, which has a high-speed planet-like effect, causes the small slide 51 to extend centrifugally, making contact with the shell side and with the side piston 57 for damping; the small sliding blocks 51 which are mutually pulled by the tension springs 52 and extend along the slide ways 56a of the damping rotating disc 56, particularly the logarithmic spiral surfaces of the peach-shaped bodies of the small sliding blocks 51, and fish collide, are meshed, slide and rub with the small piston 57 and the inner part of the damping box shell 53, so that the slow retraction damping effect is enhanced; the position lock is a ball crank pin which runs along an inner cam groove 53n and an outer cam groove 53w with a plurality of control points at different distances along a plane; the cam profile curve of the groove edge of the inner cam groove 53n is a constant speed spiral which is similar to a part of the constant speed spiral according to the polar coordinate equation of the Archimedes spiral taking the shaft center 03 as the pole, so as to be close to the cam profile curve of the Archimedes spiral which can change constant speed rotation into constant speed movement; the cam profile curve of the groove edge of the outer cam groove 53w is a part of approximately similar equiangular spiral, namely a logarithmic spiral, so as to obtain the cam profile curve equal at the approximate pressure angle; a ball 80C with a short transverse pin 80d is arranged on a concave ball groove at the end part of the lock line shaft 80 of the ball crank handle pin 60 of the position locking device, and a ball bearing 83f is arranged on the follow-up rotating shaft 83 to form the ball crank handle pin; perpendicular to the connecting rod shaft 82, the follower shaft 83 is also perpendicular to the connecting rod shaft 82, and the lock-line shaft 80 and the follower shaft 83 extend in parallel and in opposite directions to form a ball crank pin; the lock line shaft 80 of the ball crank handle pin is movably inserted into the inner cam groove and the outer cam groove, the follower rotating shaft 83 is movably inserted into the rotating hole 56c of the damping rotating disc 56, and the follower rotating shaft 83 is longer than the lock line shaft 80; the bottom surface of the damping box shell 53 is provided with a front projection 53c and a rear projection 53d, and a locking projection 53e and a ball crank pin are arranged between the front projection and the rear projection, so that the problem that the damping box shell is accidentally not clamped is solved, and the integral stable operation is ensured.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is an exploded view of the multifunctional garden hose cart.

Fig. 2 is a schematic view of the tool box 28.

Fig. 3 is a schematic view of the tool box holder 29.

Fig. 4 is a perspective view of the gear 32 provided with the bevel chamfer 32C.

Fig. 5 is an internal view of the right fixing bracket 27.

Fig. 6 is an external view of the right fixing bracket 27.

FIG. 7 is a schematic view of the multifunctional garden hose cart.

FIG. 8 is a schematic view of a handlebar of the hose car with a rotatable coupling.

Fig. 9 is a perspective view of the upper conjoined gear ring 33 provided with the bevel chamfer 33C.

Fig. 10 is a schematic view of the gear 32 in which a bevel chamfer 32C is provided in a part of each tooth of the gear 32.

Fig. 11 is a perspective view of the push button 34 provided with 2 locking legs 34C.

FIG. 12 is a perspective view of a hose car equipped with a rotatable coupling.

Fig. 13 is a schematic view of the lower conjoined gear ring 35.

Fig. 14 is a plan view of one tooth of the gear 32 provided with the chamfered corner 32C.

Fig. 15 is an exploded view of the quick connector K10 and the adapter.

Fig. 16 is an exploded view of the quick connector K10 and the adapter.

Fig. 17 is a perspective view of the quick coupling K10.

FIG. 18 is a perspective view of the garden hose car with a quick buckle.

Fig. 19 is a perspective view of the quick buckle 36.

Fig. 20 is a perspective view of the knob 37.

Fig. 21 is a perspective view of the motion post 38.

Fig. 22 is a perspective view of the cartridge 39.

Fig. 23 is a perspective view of the flexible arc block 40.

Fig. 24 is a perspective view of the fixed plastic frame 41.

Fig. 25 is a perspective view of another perspective view of the fixed plastic frame 41.

Fig. 26 is an exploded view of the reel pipe device.

FIG. 27 is a schematic view of the shaft 80 running along the groove as the line is pulled outwardly.

FIG. 28 is a schematic view of the spring reaction locking the shaft 80 when the line is stopped.

FIG. 29 is a schematic view of the shaft 80 running along the groove when the line is pulled again and unwound to automatically rewind all.

FIG. 30 is a schematic view of ball crank pin 60.

Fig. 31 is a schematic view of the damper dial 56 provided with the pin hole 56c.

FIG. 32 is a schematic view of a modified ball crank pin 60 with a ball.

Fig. 33 is a schematic view of the outer cam groove 53w running along the groove.

FIG. 34 is an enlarged partial schematic view of the ball end of the improved ball crank pin 60.

Fig. 35 is a schematic view of an inner cam groove 53n running along the groove.

Fig. 36 is a schematic view of the inner cam groove 53n and the outer cam groove 53w running along the grooves.

FIG. 37 is a schematic view of a hose reel with an electromagnetic pump valve 84 of a draw-bar box type labor saving adjustable hose car.

In the figure:

1. is a blind rivet 1;

2. is a self-tapping screw 2;

3. is a fastening nut 3;

4. is a left fixed bracket 4;

5. is a bent pipe 5;

6. is a seal ring 6;

7. is an inner bayonet joint 7;

8. is a water stop ring 8;

9. is an EPDM seal ring 9;

10. is an Oldham coupling 10;

11. a leg fixing plate 11;

12. is a base 12;

13. is a wheel cover 13;

14. is a wheel buckle 14;

15. is the wheel 15;

16. is an electroplated wheel axle 16;

17. is a lower bracket 17;

18. is a hub 18;

19. is a fixed frame 19;

20. is wheel disc 20;

21. is a rocker base 21;

22. is the locator 22;

23. is a rocker sleeve 23;

24. is a handle clasp 24;

25. is a handle cover 25;

26. is a rocker 26;

27. is a right fixed bracket 27;

28. is a tool box 28; 28a, a power supply box;

29. is a tool box holder 29;

30. is a metal handle 30;

31. is a plastic hose 31;

32. is the gear 32;

33. is an upper conjoined gear ring 33;

34. is key 34;

35. is a lower conjoined gear ring 35;

K10. is a quick coupling K10;

K1. is a plastic-coated joint screw cap K1;

K2. is a nipple nut K2;

K3. is a quick coupling body K3;

K4. is 3 cartridges K4;

K5. is a quick connector spring K5;

K6. is a movable plastic-coated K6;

k6b. is an arrow indication K6B;

K7. is a movable sleeve K7;

32C, is a bevel chamfer 32C;

33C, is a chamfer 33C;

34C, a clip 34C;

36. is a quick snap 36;

37. is a knob 37;

38. is a command post 38;

39. is a card holder 39;

40. is a flexible arc block 40;

41. is a fixed plastic frame 41;

37a, an internal mosquito 37 a;

37b, is a peripheral flange 37 b;

38a, is an external thread 38 a;

38b, is an outer slide rail 38 b;

38c is an arcuate tab 38 c;

38d, is the inner slide 38 d;

39a, is an inner clamping leg 39 a;

39b, outer catches 39 b;

39c. is an inner slide rail 39 c;

40a, is an outer slide 40 a;

41a, is a half arc piece 41 a;

41b is a chute 41 b;

51. is a small slide block;

52. is a tension spring;

53. is a damping box housing;

54. is a bull gear;

55. is an inner disc;

56. is a damping turntable;

57. is a side piston;

58. is a pressure spring;

59. is a pinion gear;

60. is a ball crank pin;

61. is a spiral spring;

62. is an upper large disc;

63. is an upper shell;

64. is a main wheel;

65. is a pipe joint;

66. is a lower disc;

67. is a lower shell;

68. is a long pin;

69. is a stent;

70. is a lower small end cover;

71. is an upper small inner cover;

72. is an upper small outer cover;

56b. end shaft 56 b;

56a, a slide 56 a;

61a, damper box cover 61 a;

80. a lock-travel shaft 80;

82. a link shaft 82;

83. a follower shaft 83;

56c, swivel holes 56 c;

front projection 53 c;

rear projection 53 d;

locking projection 53 e;

53n. inner cam groove 53 n;

53w. outer cam groove 53 w;

03. the axis 03;

80d, short transverse pin;

80C, a ball 80C;

ball bearing 83 f; 84. an electromagnetic pump valve 84.

Detailed Description

The operator first takes out the hose car with the pipeline wound in advance, installs the tool box, holds the plastic hose sleeved outside the metal handle by the air blowing method in advance, presses the button 34 with both hands, rotates the connecting piece, namely the adjustable handle to a proper position, then pushes the hose car to a place to be visited, connects the water source pipe with the quick connector K10, and pulls out the pipeline distribution nozzle of the hose car to operate. These are convenient for the operator because of improvements in the axial clutch adjustment mechanisms of the rotatable connectors, such as integral gear rings and gears, as well as the accompanying tool boxes and quick-connects. Because the multifunctional novel garden hose car is composed of the blind rivet 1, the self-tapping screw 2, the fastening nut 3, the left fixing bracket 4, the elbow pipe 5, the sealing ring 6, the inner clamping joint 7, the water stop ring 8, the EPDM sealing ring 9, the European tooth female joint 10, the foot pipe fixing plate 11, the base 12, the wheel cover 13, the wheel buckle 14, the wheel 15, the electroplated wheel shaft 16, the lower bracket 17, the axle sleeve 18, the fixing frame 19, the wheel disc 20, the rocker seat 21, the positioner 22, the rocker sleeve 23, the handle buckle 24, the handle cover 25, the rocker 26, the right fixing bracket 27, the tool box 28, the tool box bracket 29, the metal handle 30, the plastic hose 31, the upper conjoined gear ring 33 of the rotary connecting piece, the gear 32, the lower conjoined gear ring 35, the key 34, and the quick joint K10, the wheel cover 13, the wheel buckle 14, the wheel 15, the electroplated wheel shaft 16, the lower bracket 17, the axle sleeves 18 together form the chassis and the running mechanism of the hose car, so that the wheels rotate when being pulled to enable the car to run. Since the plastic hose 31 is sleeved outside the metal handle 30, the hand feeling is good and the appearance of the hose car is beautiful. The plastic hose 31 is processed from expanded plastic using an extruder, for example from PVC, but preferably from EVA. The sleeving method cannot be tried by using a plurality of methods of a mechanical hard sleeve, but the method is also used for reducing the cost by using an air blowing method; the air pressure is adjusted to 4-6, preferably 5, by using a thin air gun head, namely the air gun head which is commonly used in workshops or specially made thinner; the plastic hose is stretched into the gap between the outside of the metal handle 30 and the plastic hose 31 sleeved on the handle, and is blown and conveyed at the same time, and the operation can be carried out after several minutes of training. Some hose car styles do not adorn the rotary type connecting piece, as the improvement, some hose cars are equipped with the rotary type connecting piece, some hose car hand (hold) 30 outsides do not overlap, some hose car cover are equipped with the plastic hose 31 of hand (hold), some hose cars do not have the toolbox, and some hose cars have the toolbox 28, some hose cars do not have quick-operation joint, and some hose cars have quick-operation joint K10, especially the scheme of quick buckle has been added, so install additional collocation and make the style many, give the multiple selection of customer, the multiple style of hose car has objectively been increased, the product way of selling has been exploited.

Because the upper connection body of the upper connection gear ring 33 of the rotary connecting piece is sleeved with the metal handle 30, the lower connection body of the lower connection gear ring 35 of the rotary connecting piece is sleeved with the lower bracket 17, and a gear 32, a key 34 and a spring (not shown in the figure) which are used for clutching are arranged between the upper connection gear ring 33 of the rotary connecting piece and the lower connection gear ring 35 of the rotary connecting piece, in order to improve the phenomenon of occasional clamping, an oblique chamfer 32C is arranged at the local part of each tooth of the gear 32, or a chamfer is arranged on the side surface of the tooth, or a chamfer is arranged on the circumferential surface of the tooth along the edge, or both chamfers, particularly the oblique chamfer is an oblique angle, such as 30 degrees and 60 degrees, but not 45 degrees; meanwhile, each tooth of the internal gear of the upper conjoined gear ring 33 of the rotary connecting piece is locally provided with an oblique chamfer 33C, or the chamfer is arranged on the side surface of the tooth, or the chamfer is arranged on the circumferential surface of the tooth, especially the oblique chamfer is oblique angle, such as 30 degrees and 60 degrees, but not 45 degrees; as a refinement, the bevel chamfer 33C and the bevel chamfer 32C are processed to be parabolic when the plastic mold is engraved or by CNC, so when an operator presses the key 34 and the 2 clamping feet 34C provided by the key, the 30-degree and 60-degree bevel chamfers of the gear and the bevel chamfer of the conjoined gear ring are rubbed to pass through, and the condition that most teeth are meshed is further developed instead of the condition that the straight and straight clamping is not carried out without chamfers. The 45 degrees are not unusable but rather are more preferred as shown by the other angles. For convenience, the invention is further improved by being provided with a quick connector K10, which consists of a plastic-coated connector screw cap K1, a connector screw cap K2, a quick connector body K3, 3 clamping heads K4, a quick connector spring K5, a movable sleeve plastic-coated K6 and a movable sleeve K7 which are assembled in sequence; the quick connector K10 is sleeved with an adapter which consists of the elbow pipe 5, a sealing ring 6, an inner clamping connector 7, a water stop ring 8, an EPDM sealing ring 9 and an European tooth female connector 10 which are assembled in sequence; an arrow indication K6B is arranged on a movable sleeve plastic-coated K6 of the quick connector K10 to clearly show that the connector can be pushed open in the arrow direction, so an operator presses and pushes the arrow indication K6B to loosen 3 clamping heads K4 and load the 3 clamping heads into a water pipe, and a quick connector spring K5 enables the quick connector to reset. The tool box is characterized in that the tool box is provided with a tool box, and consists of a tool box 28 and 2 tool box supports 29, the two ends of the tool box 28 are respectively provided with a hook which can be hung on the short shaft of each tool box support 29, and the tool box supports 29 are provided with C-shaped cutting sleeves so as to be clamped on the metal handles 30, so that the tool box is convenient for operators.

As an improvement, in order to facilitate the assembly and disassembly, another significant improvement of the present invention is to provide a quick buckle 36, see the perspective view 18 of the garden hose car with the quick buckle, and see fig. 19-25, wherein the quick buckle is mounted on left and right fixed plastic frames 41, and is composed of a knob 37, a movable post 38, a clamping seat 39, and a movable arc block 40, and the fixed plastic frame 41 is provided with a mounting hole for mounting the quick buckle, and a half-arc piece 41a is provided therein so as to be mounted on one side of the metal handle 30, while the other side of the metal handle 30 is assembled and disassembled by the quick buckle, specifically, the movable arc block 40 is pressed against the metal handle 30; the movable arc block 40 is arranged in the clamping seat 39 and can move back and forth; the clamping seat 39 is arranged on the mounting hole position of the fixed plastic frame 41 for mounting the quick buckle; the back of the movable order arc block 40 is provided with the movable order column 38; the piston rod 38 is externally threaded to the knob 37, and reciprocates when the knob 37 is rotated.

In the above-mentioned scheme of quick snap, the outside of the knob 37 is provided with a peripheral flange 37b to match with the inner clamping leg 39a of the clamping seat 39, so that the knob 37 only rotates without reciprocating motion.

In the above-mentioned solution of quick snap, the said card base 39 has 4 inner card feet 39a, in order to cooperate with the peripheral flanging 37b that is equipped with outside of the knob 37, so the knob 37 only rotates and does not have reciprocating motion.

Because the garden hose car with the quick buckle is convenient and quick, the garden hose car has the beneficial effects. The quick buckle is arranged on a left fixed plastic frame 41 and a right fixed plastic frame 41 and consists of a knob 37, a movable buckle column 38, a clamping seat 39 and a movable buckle arc block 40, wherein the fixed plastic frame 41 is provided with an installation hole for installing the quick buckle, and a half arc piece 41a is arranged in the installation hole, so that the quick buckle can be arranged on one side of the metal handle 30, the other side of the metal handle 30 is assembled and disassembled by the quick buckle, and particularly, the movable buckle arc block 40 is used for pressing the metal handle 30; the movable arc block 40 is arranged in the clamping seat 39 and can move back and forth; the clamping seat 39 is arranged on the mounting hole position of the fixed plastic frame 41 for mounting the quick buckle; the back of the movable order arc block 40 is provided with the movable order column 38; the outside of the movable column 38 is connected with the knob 37 through screw threads, when the knob 37 is rotated, the movable column moves in a reciprocating manner, the inside of the knob 37 is provided with an inner screw mosquito 37a which can be matched with an outer screw thread 38a of the movable column 38, and the outside of the knob 37 is provided with a peripheral flanging 37b which is matched with an inner clamping foot 39a of the clamping seat 39, so that the knob 37 only rotates without reciprocating movement.

An operator firstly puts the portable multipurpose water pipe vehicle, namely the portable hand-push electric multipurpose water pipe vehicle with a connector and an electromagnetic pump valve into a use range; a shell of a damping lock pipe coiling device consists of a wheel shell assembly, a centrifugal slow retraction device, a side piston damping device and a position lock; the wheel shell assembly of the pipe coiling device of the water hose car consists of an upper shell 63, an upper large disc 62, a spiral spring 61, an inner disc 55, a large gear 54, a main wheel 64, a pipe joint 65, a lower disc 66 and a lower shell 67; a lower disc 66 and an inner disc 55 which are provided with rotating shafts are arranged in a hole of a central shaft of the shell; the inner disc 55 and the upper large disc 62 form a retraction device through a spiral spring 61; the inner disc 55 is fixedly provided with a large gear 54, is inserted into an upper small inner cover 71 and is fixedly mounted on the upper shell 63 through an upper small outer cover 72; one end of a spiral spring 61 is fixedly arranged on a groove on the shaft of the fixed inner disc 55, the outer ring of the spiral spring is assembled on a clamping column of a main wheel 64 and is covered by an upper large disc 62 through clamping positions at four edges; so the bull gear is relatively immobile; when an operator pulls the pipeline, the upper large disc 62, the main wheel 64, the pipe joint 65 and the lower disc 66 are rotated relative to the outer shell because the main wheel 64 is provided with the pipe joint 65 on which the pipeline is installed and wound, the main wheel 64 and the lower disc 66 are fixedly connected into a whole through screws, and the central large pipe shaft of the lower disc 66 is rotatably sleeved and inserted on the smooth outer shaft surface of the central large pipe of the lower shell 67; when the pipeline is pulled out, the main wheel 64 drives the pinion 59, so that the damping turntable 56 drives one end locking shaft 80 of the ball crank pin 60 to run along an inner groove which is collided with the bottom surface of the damping box shell 53; when the pulling is stopped, the lock-running shaft 80 will be locked at the lock-stopping protrusion 53e due to the reaction of the spring; the point is pulled again and the pipeline is loosened, the pin shaft end, namely the locking shaft 80, is not locked along the outer ring groove, and the hose or the cable is automatically rewound under the reaction force of the spring 61; if it is too fast, the pinion 59, which has a high-speed planet-like effect, causes the small slide 51 to extend centrifugally, making contact with the shell side and with the side piston 57 for damping; the small sliding blocks (51) which are mutually pulled by the tension springs (52) and extend along the slide ways (56 a) of the damping rotating disc (56), particularly the logarithmic spiral surfaces of the peach-shaped bodies of the small sliding blocks (51), and fishes are penetrated into the small pistons (57) and the damping box shell (53) to collide, mesh, slide and rub, so that the slow retraction damping effect is enhanced; the position lock is a ball crank pin which runs along an inner cam groove 53n and an outer cam groove 53w with a plurality of control points at different distances along a plane; the cam profile curve of the groove edge of the inner cam groove 53n is a constant speed spiral which is similar to a part of the constant speed spiral according to the polar coordinate equation of the Archimedes spiral taking the shaft center 03 as the pole, so as to be close to the cam profile curve of the Archimedes spiral which can change constant speed rotation into constant speed movement; the cam profile curve of the groove edge of the outer cam groove 53w is a part of approximately similar equiangular spiral, namely a logarithmic spiral, so as to obtain the cam profile curve equal at the approximate pressure angle; a ball 80C with a short transverse pin 80d is arranged on a concave ball groove at the end part of the lock line shaft 80 of the ball crank handle pin 60 of the position locking device, and a ball bearing 83f is arranged on the follow-up rotating shaft 83 to form the ball crank handle pin; the lock cylinder is perpendicular to the connecting rod shaft 82, the follower rotating shaft 83 is also perpendicular to the connecting rod shaft 82, and the lock cylinder 80 and the follower rotating shaft 83 extend in parallel and in opposite directions to form a crank pin; the lock line shaft 80 of the ball crank handle pin is movably inserted into the inner cam groove and the outer cam groove, the follower rotating shaft 83 is movably inserted into the rotating hole 56c of the damping rotating disc 56, and the follower rotating shaft 83 is longer than the lock line shaft 80; the bottom surface of the damping box shell 53 is provided with a front projection 53c and a rear projection 53d, and a locking projection 53e and a ball crank pin are arranged between the front projection and the rear projection, so that the problem that the damping box shell is accidentally not clamped is solved, and the integral stable operation is ensured.

A portable multipurpose water pipe vehicle is a modified portable hand-push electric multipurpose water pipe vehicle with a pipe coiling device of a function curve concave pipeline matched with a position lock of a ball crank pin and a multipurpose water pipe vehicle with a connector and an electromagnetic pump valve on the basis of a garden water pipe vehicle with a hose or a cable for coiling and a quick buckle, wherein the pipe coiling device with the position lock is a locking device for the pipe coiling device and consists of a ball crank pin 60, inner and outer cam grooves arranged at the bottom surface of a damping box shell 53, a damping turntable 56, a damping box cover 61 and a pinion 59; the utility model provides a damping lock reelpipe ware, by the wheel shell assembly, the centrifugation is retracted device slowly, and side piston damping device to and position lock constitutes its characterized in that: the centrifugal block of the centrifugal slow retraction device is a small sliding block which is pulled by each group of two mutually used tension springs; the side piston damping device is a small piston which is arranged on the side surface of a centrifugal block of the centrifugal slow retraction device and is damped with the centrifugal block; in addition, the position lock is a crank pin which runs along an inner cam groove and an outer cam groove with a plurality of control points at different distances on a plane; the wheel shell assembly of the pipe coiling device consists of an upper shell 63, an upper large disc 62, a spiral spring 61, an inner disc 55, a large gear 54, a main wheel 64, a pipe joint 65, a lower disc 66, a lower shell 67, a long pin 68 and a support 69; the upper shell and the lower shell of the pipe coiling device are assembled into a shell of the pipe coiling device; the shell is connected to the hose car through a long pin 68 and a bracket 69 in a micro-rotation manner; a lower disc 66 and an inner disc 55 which are provided with rotating shafts are arranged in a hole of a central shaft of the shell; the inner disc 55 and the upper large disc 62 form a retraction device through a spiral spring 61; the inner disc 55 is fixedly provided with a large gear 54, is inserted into an upper small inner cover 71 and is fixedly mounted on the upper shell 63 through an upper small outer cover 72; thus, the bull gear 54 is virtually stationary with respect to the housing of the roller tube; the groove on the shaft of the immovable inner disc 55 is fixedly provided with one end of a spiral spring 61 close to the center of a circle, the outer ring of the spiral spring is assembled on a clamping column at the edge of a rotating main wheel 64 and is covered by an upper large disc 62 through four clamping positions at the edge; the main wheel 64 is provided with a pipe joint 65, the main wheel 64 and the lower disc 66 are fixedly connected into a whole through screws, and the main wheel 64 is rotatably sleeved and inserted on the smooth outer shaft surface of the central large pipe of the lower shell 67 by the central large pipe shaft of the lower disc 66; that is, the upper plate 62, the main wheel 64, the pipe joint 65 and the lower plate 66 are rotated relative to the housing; the pinion 59 is engaged with the large gear and drives the damping turntable 56 of the damping box shell 53 fitted on the main wheel 64; the side piston damping device is a small piston which is arranged on the side surface of a centrifugal block of the centrifugal slow retraction device and is damped with the centrifugal block; the side piston damping device comprises a damping box shell 53, an edge piston 57, a compression spring 58, a small slide block 51, a tension spring 52, a damping turntable 56, a damping box cover 61a and a small gear 59, and is characterized in that: the side piston damping device is a small piston which is arranged on the side surface of a centrifugal block of the centrifugal slow retraction device and is damped with the centrifugal block; the side piston damping device comprises a damping box shell 53, an edge piston 57, a compression spring 58, a small slide block 51, a tension spring 52, a damping turntable 56, a damping box cover 61a and a small gear 59, and is characterized in that: the compression springs 58 arranged at the rear parts of the side pistons 57 of the side piston damping devices are compression springs with larger two ends and smaller middle parts; the position lock is a ball crank pin which runs along an inner cam groove and an outer cam groove with multiple control points at different distances on a plane; the position locking device is composed of a crank pin 60, an inner cam groove and an outer cam groove which are arranged on the bottom surface of the damping box shell 53 and have multiple control points along the plane, a damping rotary disc 56, a damping box cover 61 and a pinion 59, and is characterized in that: the locking shaft 80 of the crank pin is vertical to the connecting rod shaft 82, the following rotating shaft 83 is also vertical to the connecting rod shaft (82), and the locking shaft 80 and the following rotating shaft 83 extend in parallel and in opposite directions to form the crank pin; the lock-line shaft 80 of the crank pin is movably inserted into the inner cam groove and the outer cam groove, the follower spindle 83 is movably inserted into the rotary hole 56c of the damping rotary disc 56, and particularly, the follower spindle 83 is longer than the lock-line shaft 80, so that the locking and the forward and backward running are reliably realized; the bottom surface of the case 53 is also provided with observation holes 53a and 53 b; the bottom surface of the damper box case 53 is provided with front and rear projections 53c and 53d and a locking projection 53e.

The reelpipe of matching position lock is with retracting damping device slowly, by damping box shell 53, little slider 51, extension spring 52, damping carousel 56, damping lid 61a and pinion 59 constitute, its characterized in that: the centrifugal block of the centrifugal slow retraction device is pulled by two tension springs, one end of each tension spring is mutually pulled and a plurality of small slide blocks 51 which stretch in a slide way 56a in the damping turntable 56; the damping box shell 53 is fixed on the main wheel 64 by screws; the shaft of the damping turntable 56 is movably inserted into the holes of the damping box shell 53 and the damping box cover 61a and is parallel to the main wheel shaft; the upper end of the shaft of the damping turntable 56 is provided with a pinion 59; the small gear is in meshing transmission with a large gear 54 fixedly arranged on an inner disc 55; a radial cross-shaped channel is arranged in the damping turntable 56, and each group of two small sliding blocks which are mutually pulled by tension springs are arranged in the damping turntable; the number of the tension springs is 2, the number of the small sliding blocks is 4, and one end of each tension spring is connected with the small sliding block; the small sliding block 51 is characterized in that: a cylinder for placing the tension spring 52 and a groove for placing the tension spring 52 are arranged in each small slide block 51; the outside of each small slide block 51 is provided with a peach-shaped body, namely, one side is a convex arc surface and the other side is a concave arc surface, particularly, the concave arc surface is a parabolic surface; the convex arc surface is an involute surface; one side of the peach-shaped body of each small sliding block is a concave arc surface, particularly a parabolic surface, and when the small sliding blocks are centrifugally rotated and extended out, the small sliding blocks are expected to ideally follow the parabolic law and contact with the interior of the damping box shell 53; the other side of the peach-shaped body of each small sliding block is a convex cambered surface, in particular an involute-shaped surface, when the small sliding blocks are centrifugally rotated and extended out, the small sliding blocks are expected to ideally follow an involute law, namely a gear meshing law, and are in meshing contact with an edge piston 57 which is expected to be meshed with the small sliding blocks and is arranged on the inner side edge of the damping box cover 53; when the two parts do not rotate or rotate at a slow speed, the two parts do not contact with each other; when the fast rotation is carried out, namely when the centrifugal rotation extends out, the peach-shaped bodies of the small sliding blocks 51 which are connected one after another are in meshed contact with the side piston 57 and also in contact with the inner part of the damping box shell 53, and the comprehensive damping effect of collision, meshing, sliding and blocking is actually realized; the small gear fixedly mounted on the end shaft 56b of the damping turntable 56 rotates around the shaft of the small gear and revolves around the shaft of the large gear of the pipe winder, and from the comprehensive description of the wheel shell assembly, the side piston damping device and the position lock, the planetary transmission ratio of the damping turntable can be understood to be relatively large, and the small slide block can be extended by enough centrifugal rotation. The end shaft 56b of the damping rotor 56 is hexagonal or square for mounting a pinion, the axial core of said end shaft being provided with an axial hole for self-tapping screw mounting. The slide way 56a of the damping rotary disc 56 is wide outside for the slide block, the central part is narrow and only the spring can pass through, thus preventing the possibility of radial deviation of more one side and less one side when the small slide block retracts; and simultaneously, the small sliding blocks which are arranged one after another are beneficial to centrifugally extending out to be contacted with the side piston for damping.

on the basis of a garden hose car with a hose or cable winding and a quick buckle, a portable hand-push electric hose car with a hose reel device with a function curve concave channel matched with a position lock of a ball crank pin and a multipurpose hose car with a connector and an electromagnetic pump valve are improved.

The pipe coiling device with the position lock is a locking device for the pipe coiling device, and consists of a ball crank handle pin 60, an inner cam groove and an outer cam groove which are arranged at the bottom surface of a damping box shell 53, a damping turntable 56, a damping box cover 61 and a pinion 59; the pipe coiling device consists of a wheel shell assembly, a damping lock containing a centrifugal slow retraction device and a side piston damping device and a position lock, wherein a centrifugal block of the centrifugal slow retraction device is a small sliding block which is pulled by each group of two mutually used tension springs; the side piston damping device is a side piston which is provided with a spring, is arranged on the side surface of a centrifugal block of the centrifugal slow retraction device and is damped with the centrifugal block; the position locking device consists of a ball crank pin 60, an inner cam groove and an outer cam groove which are arranged on the bottom surface of the damping box shell 53 and have multiple control points along the plane, a damping rotary disc 56, a damping box cover 61 and a pinion 59, wherein a lock line shaft 80 of the ball crank pin is vertical to a connecting rod shaft 82, a follow rotation shaft 83 is also vertical to the connecting rod shaft 82, and the lock line shaft 80 is parallel to the follow rotation shaft 83 and extends reversely to form the crank pin; the lock-line shaft 80 of the crank pin is movably inserted into the inner cam groove and the outer cam groove, the follower rotating shaft (83) is movably inserted into the rotating hole 56c of the damping rotating disc 56, and the follower rotating shaft 83 is longer than the lock-line shaft 80; the bottom surface of the damping box shell 53 is provided with a front convex part 53c, a rear convex part 53d and a locking convex part 53 e; it is characterized in that the compression spring 58 arranged at the rear part of the side piston 57 of the side piston damping device is a compression spring with two larger ends and a smaller middle part; the position lock is a ball crank pin which runs along an inner cam groove 53n and an outer cam groove 53w with a plurality of control points at different distances along a plane; the cam profile curve of the groove edge of the inner cam groove 53n is a constant speed spiral which is similar to a part of the constant speed spiral according to the polar coordinate equation of the Archimedes spiral taking the shaft center (03) as the pole, so as to be close to the cam profile curve of the Archimedes spiral which can change constant speed rotation into constant speed movement; the cam profile curve of the groove edge of the outer cam groove (53w) is a part of approximately similar equiangular spiral, namely logarithmic spiral, so as to obtain the cam profile curve equal at the approaching pressure angle; the concave ball groove at the end of the lock line shaft 80 of the position lock device crank pin 60 is provided with a ball 80C with a short transverse pin 80d, and the follower rotating shaft 83 is provided with a ball bearing 83f to form the ball crank pin.

An operator firstly puts the portable multipurpose water pipe vehicle, namely the portable hand-push electric multipurpose water pipe vehicle with a connector and an electromagnetic pump valve into a use range; a shell of a damping lock pipe coiling device consists of a wheel shell assembly, a centrifugal slow retraction device, a side piston damping device and a position lock; the wheel shell assembly of the pipe coiling device of the water hose car consists of an upper shell 63, an upper large disc 62, a spiral spring 61, an inner disc 55, a large gear 54, a main wheel 64, a pipe joint 65, a lower disc 66 and a lower shell 67; a lower disc 66 and an inner disc 55 which are provided with rotating shafts are arranged in a hole of a central shaft of the shell; the inner disc 55 and the upper large disc 62 form a retraction device through a spiral spring 61;

the inner disc 55 is fixedly provided with a large gear 54, is inserted into an upper small inner cover 71 and is fixedly mounted on the upper shell 63 through an upper small outer cover 72; one end of a spiral spring 61 is fixedly arranged on a groove on the shaft of the fixed inner disc 55, the outer ring of the spiral spring is assembled on a clamping column of a main wheel 64 and is covered by an upper large disc 62 through clamping positions at four edges; so the bull gear is relatively immobile; when an operator pulls the pipeline, the upper large disc 62, the main wheel 64, the pipe joint 65 and the lower disc 66 are rotated relative to the outer shell because the main wheel 64 is provided with the pipe joint 65 on which the pipeline is installed and wound, the main wheel 64 and the lower disc 66 are fixedly connected into a whole through screws, and the central large pipe shaft of the lower disc 66 is rotatably sleeved and inserted on the smooth outer shaft surface of the central large pipe of the lower shell 67; when the pipeline is pulled out, the main wheel 64 drives the pinion 59, so that the damping turntable 56 drives one end locking shaft 80 of the ball crank pin 60 to run along an inner groove which is collided with the bottom surface of the damping box shell 53; when the pulling is stopped, the lock-running shaft 80 will be locked at the lock-stopping protrusion 53e due to the reaction of the spring; the point is pulled again and the pipeline is loosened, the pin shaft end, namely the locking shaft 80, is not locked along the outer ring groove, and the hose or the cable is automatically rewound under the reaction force of the spring 61; if it is too fast, the pinion 59, which has a high-speed planet-like effect, causes the small slide 51 to extend centrifugally, making contact with the shell side and with the side piston 57 for damping; the small sliding blocks 51 which are mutually pulled by the tension springs 52 and extend along the slide ways 56a of the damping rotating disc 56, particularly the logarithmic spiral surfaces of the peach-shaped bodies of the small sliding blocks 51, and fish collide, are meshed, slide and rub with the small piston 57 and the inner part of the damping box shell 53, so that the slow retraction damping effect is enhanced; the position lock is a ball crank pin which runs along an inner cam groove 53n and an outer cam groove 53w with a plurality of control points at different distances along a plane; the cam profile curve of the groove edge of the inner cam groove 53n is a constant speed spiral which is similar to a part of the constant speed spiral according to the polar coordinate equation of the Archimedes spiral taking the shaft center 03 as the pole, so as to be close to the cam profile curve of the Archimedes spiral which can change constant speed rotation into constant speed movement; the cam profile curve of the groove edge of the outer cam groove 53w is a part of approximately similar equiangular spiral, namely a logarithmic spiral, so as to obtain the cam profile curve equal at the approximate pressure angle; a ball 80C with a short transverse pin 80d is arranged on a concave ball groove at the end part of a lock line shaft (80) of the crank pin 60 of the position lock device, and a ball bearing 83f is arranged on the follow-up rotating shaft 83 to form the ball crank pin; perpendicular to the connecting rod shaft 82, the follower shaft 83 is also perpendicular to the connecting rod shaft 82, and the lock-line shaft 80 and the follower shaft 83 extend in parallel and in opposite directions to form a ball crank pin; the lock-line shaft 80 of the ball crank handle pin is movably inserted into the inner cam groove and the outer cam groove, the follower rotating shaft 83 is movably inserted into the rotating hole 56c of the damping rotating disc (56), and the follower rotating shaft 83 is longer than the lock-line shaft 80; the bottom surface of the damping box shell 53 is provided with a front projection 53c and a rear projection 53d, and a locking projection 53e and a ball crank pin are arranged between the front projection and the rear projection, so that the problem that the damping box shell is accidentally not clamped is solved, and the integral stable operation is ensured. The cam profile curve of the groove edge of the outer cam groove 53w is also a part of a similar spiral of the polar coordinate equation of the Archimedes spiral, and the inner cam profile curve and the outer cam profile curve are partially parallel, so that the manufacturing precision is high.

The draw-bar box type labor-saving adjustable water pipe vehicle is a draw-bar box type water pipe vehicle with a pipe coiling device of a position lock provided with a function curve concave channel and a ball crank pin and a multipurpose water pipe vehicle with an electromagnetic pump valve, and the cam profile curves of the groove edges of an inner cam groove 53n and an outer cam groove 53w of the position lock are partially similar constant speed spirals according to the polar coordinate equation of an Archimedes spiral taking an axis 03 as a pole; a ball 80C with a short transverse pin 80d is arranged on a concave ball groove at the end part of the locking shaft 80 of the ball crank pin 60, and a ball bearing 83f is arranged on the following rotating shaft 83 to form the ball crank pin; the hose car is provided with an electromagnetic pump valve 84 so as to meet the requirements of high pressure and flow regulation.

The valve has the advantages of overcoming the problem that the valve is not blocked occasionally, ensuring stable operation and meeting the requirements of high pressure and flow regulation.

Claims

1. The position lock of the hose reel car consists of a ball-adding crutch pin (60), inner and outer cam grooves arranged on the bottom surface of a damping box shell (53), a damping turntable (56), a damping box cover (61) and a pinion (59); the pipe coiling device consists of a wheel shell assembly, a damping lock containing a centrifugal slow retraction device and a side piston damping device and a position lock, wherein a centrifugal block of the centrifugal slow retraction device is a small sliding block which is pulled by each group of two mutually used tension springs; the side piston damping device is a side piston which is provided with a spring, is arranged on the side surface of a centrifugal block of the centrifugal slow retraction device and is damped with the centrifugal block; the bottom surface of the damping box shell (53) of the position lock is provided with an inner cam groove and an outer cam groove which are provided with a plurality of control points along the plane; the locking shaft (80) of the ball-adding crank handle pin is vertical to the connecting rod shaft (82), the following rotating shaft (83) is also vertical to the connecting rod shaft (82), and the locking shaft (80) and the following rotating shaft (83) extend in parallel and in reverse direction; the lock-line shaft (80) of the ball-adding crank pin is movably inserted into the inner cam groove and the outer cam groove, the follower rotating shaft (83) is movably inserted into the rotating hole (56c) of the damping rotating disc (56), and the follower rotating shaft (83) is longer than the lock-line shaft (80); the bottom surface of the damping box shell (53) is provided with a front convex part (53c), a rear convex part (53d) and a locking convex part (53 e);

it is characterized in that the preparation method is characterized in that,

the pressure spring (58) arranged at the rear part of the side piston (57) of the side piston damping device is a pressure spring with two larger ends and a smaller middle part; the position lock is a ball-added crank pin which runs along an inner cam groove (53n) and an outer cam groove (53w) which are planar and have multiple control points; the cam profile curve of the groove edge of the inner cam groove (53n) is a constant speed spiral which is similar to a part of the constant speed spiral according to the polar coordinate equation of the Archimedes spiral taking the shaft center (03) as the pole, so as to be close to the cam profile curve of the Archimedes spiral which can change constant speed rotation into constant speed movement; the cam profile curve of the groove edge of the outer cam groove (53w) is also a part of the spiral of a polar coordinate equation similar to the Archimedes spiral; the inner cam and the outer cam are parallel in profile curve part;

a ball (80C) with a short transverse pin (80d) is arranged on a concave ball groove at the end part of a lock line shaft (80) of the ball-adding crank handle pin (60) of the position lock, and a ball bearing (83f) is arranged on a rotating shaft (83) to form the ball-adding crank handle pin so as to ensure the position lock to be reliable; the water hose car is provided with an electromagnetic pump valve (84) so as to meet the requirements of high pressure and flow regulation.