CN214495595U - Pedal hydraulic lifting handcart - Google Patents

Abstract

The utility model discloses a foot-operated hydraulic lifting trolley, which comprises a fixed wheel bracket, a handrail bracket, a lifting arm, a movable tray, a manual hydraulic lifting cylinder, a foot-operated lifting device and a foot-operated exhaust pressure relief device; the handrail support is arranged at the rear end of the fixed wheel support; the lifting arm is rotationally connected with the upper end of the handrail support and is connected with the movable tray; a piston rod of the manual hydraulic lifting cylinder is rotationally connected with the lifting arm, and a cylinder body of the manual hydraulic lifting cylinder is rotationally connected with the rear end of the fixed wheel bracket; the pedal lifting device is connected with a hand-operated operating handle of the manual hydraulic lifting cylinder; the pedal exhaust pressure relief device is connected with a pressure relief valve of the manual hydraulic lifting cylinder. In the technical scheme provided by the utility model, the foot-operated hydraulic lifting trolley is simple to manufacture and low in processing cost; the volume is small, the weight is light, and the carrying and the storage are convenient; the requirement on the use place is low; convenient and safe operation, wide application range and multiple realized functions.

Description

Pedal hydraulic lifting handcart

Technical Field

The utility model relates to a handling tool technical field, in particular to foot-operated hydraulic pressure lift handcart.

Background

At present, the handcart similar to the design mainly comprises a hydraulic forklift, a hand-push hydraulic forklift or a single-wheel and double-wheel simple handcart and the like. The hydraulic forklift belongs to a mobile device, and is large in size, heavy in weight and high in price; although the hand-push hydraulic forklift is small and exquisite and convenient to use, the hand-push hydraulic forklift has no hydraulic lifting stroke or a small hydraulic stroke of about 0-200mm, and is inconvenient for transferring or moving materials, structural accessories and goods which move to a high place; simple and easy handcart of single wheel or double round, though simple manufacture transports the convenience, its loading and unloading relies on the manual work completely, and does not have lift stroke, and intensity of labour is big.

Disclosure of Invention

An object of the utility model is to prior art's weak point, provide a foot-operated hydraulic pressure lift handcart, can satisfy the job site to the transportation of all kinds of construction materials, equipment structure accessories or places goods such as family, market and other place goods, the demand of removal.

The utility model provides a foot-operated hydraulic lifting trolley, which comprises a fixed wheel bracket, a handrail bracket, a lifting arm, a movable tray, a manual hydraulic lifting cylinder, a foot-operated lifting device and a foot-operated exhaust pressure relief device;

the fixed wheel is arranged at the bottom of the fixed wheel support, the handrail support is obliquely arranged at the rear end of the fixed wheel support at a certain angle, and a handrail is arranged at the top of the handrail support;

the upper end of the lifting arm can be rotatably connected with the upper end of the armrest support along a left-right axis, the lower end of the lifting arm is connected with the movable tray, and the movable tray is arranged forwards;

a piston rod of the manual hydraulic lifting cylinder can be rotationally connected with the lifting arm along a left-right axis, and a cylinder body of the manual hydraulic lifting cylinder can be rotationally connected with the rear end of the fixed wheel bracket along the left-right axis;

the pedal lifting device is connected with a hand-operated handle of the manual hydraulic lifting cylinder and is used for driving a piston rod of the manual hydraulic lifting cylinder to extend out through the pedal lifting device;

the pedal exhaust pressure relief device is connected with the pressure relief valve of the manual hydraulic lifting cylinder and used for adjusting the pressure relief valve of the manual hydraulic lifting cylinder through the pedal lifting device.

Optionally, the fixed wheel is arranged at the front end of the fixed wheel support, the rear end of the fixed wheel support is provided with a guide wheel support, and the bottom of the guide wheel support is provided with a guide wheel.

Optionally, the upper end of the armrest support and the rear end of the movable tray are both provided with a through shaft extending in the left-right direction;

the upper end and the lower extreme of lifing arm can be followed the axis rotation of left-right direction respectively and are connected two lead to the axle, every lead to the axle sleeve and establish and install two lifing arm spacing rings, every lead to epaxial two lifing arm spacing rings and separately locate the left side and the right side of lifing arm.

Optionally, the lifting arm further comprises two safety pull rods, and the two safety pull rods are respectively arranged on the left side and the right side of the lifting arm;

two ends of each safety pull rod can be respectively connected with the upper end of the handrail support and the upper end of the movable tray in a rotating mode along a left-right axis.

Optionally, the lifting device further comprises a spring, and two ends of the spring are respectively connected with the pedal lifting device and the fixed wheel bracket.

In the technical scheme provided by the utility model, the piston rod of the manual hydraulic lifting cylinder can rotate along the axis in the left-right direction to connect with the lifting arm, and the cylinder body of the manual hydraulic lifting cylinder can rotate along the axis in the left-right direction to connect with the rear end of the fixed wheel bracket; the pedal lifting device is connected with a hand-operated operating handle of the manual hydraulic lifting cylinder and is used for driving a piston rod of the manual hydraulic lifting cylinder to extend out through the pedal lifting device; the pedal exhaust pressure relief device is connected with a pressure relief valve of the manual hydraulic lifting cylinder and used for adjusting the pressure relief valve of the manual hydraulic lifting cylinder through the pedal lifting device. According to the diameter of a hand-operated handle of the hand-operated hydraulic lifting cylinder 14, a steel pipe with matched specifications is selected as a main material of the pedal lifting device of the hand-operated hydraulic lifting cylinder, the steel pipe needs to freely penetrate into a hand-operated ratchet wheel operation pipe of the hand-operated hydraulic lifting cylinder, the surrounding gap is not too large, a pedal plate is welded on one side close to an operator, a stud is welded on the end head of the other side, which corresponds to the vertical position of a bottom plate, a spring is connected between the end part of the steel pipe and the stud, so that the ratchet wheel can be conveniently reset in the pedal retracting process of the pedal plate, and the aim of pedal cycle operation is fulfilled. According to the diameter of the pressure release valve pipe of the manual hydraulic pressure lift cylinder 14, a matched steel pipe is selected as a main material of the pedal exhaust pressure relief device of the manual hydraulic pressure lift cylinder, 2 plectrums which are matched with the pressure release valve and operate in the steel pipe are selected according to the plectrum form in the pressure release valve, the pedal plates which can be controlled are welded on the outer side of the steel pipe, the steel pipe and the inner plectrums are driven when the pedal steel plate is stressed left and right, the inner plectrums of the pressure release valve are clamped by the 2 inner plectrums, the pressure release valve of the manual hydraulic pressure lift cylinder is stirred, and then the function of the pedal exhaust pressure relief device is realized, namely the functions of locking and pressure relief.

This foot-operated hydraulic pressure lift handcart had both been applicable to the various construction places of construction unit, also was applicable to various goods transport such as family, market, places such as removal, compares with prior art, and its advantage and effect mainly appear:

1. the manufacturing materials of the pedal type hydraulic lifting trolley are common materials or standard parts, so that the pedal type hydraulic lifting trolley is easy to purchase, simple to manufacture and low in processing cost;

2. the pedal type hydraulic lifting trolley is small in size, light in weight and convenient to carry and store;

3. the pedal type hydraulic lifting trolley has low requirement on use places;

4. the foot-operated hydraulic lifting trolley is convenient and safe to operate, wide in application range and multiple in realized functions.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a front view of the foot-operated hydraulic lifting trolley provided by the present invention;

FIG. 2 is a top plan view of the foot-propelled hydraulic lift cart of FIG. 1;

FIG. 3 is a left side elevational view of the foot-propelled hydraulic lift cart of FIG. 1;

the reference numbers illustrate: 1-fixed wheel support, 2-fixed wheel clamping plate, 3-fixed wheel, 4-guide wheel support, 5-guide wheel fixing plate, 6-guide wheel, 7-handrail support, 8-handrail, 9-lifting arm, 10-lifting arm limiting ring, 11-movable tray, 12-safety pull rod fixing plate, 13-safety pull rod, 14-manual hydraulic lifting cylinder, 15-lifting cylinder piston rod fixing plate, 16-lifting cylinder base fixing device, 17-pedal lifting device, 18-stud, 19-spring and 20-pedal exhaust pressure relief device.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

The utility model provides a foot-operated hydraulic pressure lift handcart, as shown in fig. 1 to fig. 3, foot-operated hydraulic pressure lift handcart includes tight pulley support 1, handrail support 7, lifing arm 9, activity tray 11, manual hydraulic pressure lift jar 14, pedal elevating gear 17 and pedal exhaust pressure relief device 20.

As shown in fig. 1, the fixed wheel bracket 1 is provided at the bottom thereof with a fixed wheel 3. For example, a 60-by-60 square tube is selected as the fixed wheel bracket 1, the wheel spacing is determined according to the specification and the size of an object to be transported or moved, the wheel spacing is designed to be 600mm in combination with daily requirements, and the connection mode adopts welding. Fixed wheel 3 is provided with two sets ofly about the interval, chooses 4 blocks delta =10mm steel sheets for use as fixed wheel splint 2, and the size is according to the central axis diameter drilling of purchasing finished product fixed wheel 3 with the unloading as required, and fixed wheel splint 2 adopts welding mode fixed with fixed wheel support 1, adopts standard nut, gasket to be connected with fixed wheel 3.

Further, as shown in fig. 1 and 2, in the present embodiment, the fixed wheel 3 is disposed at the front end of the fixed wheel bracket 1, the guide wheel bracket 4 is disposed at the rear end of the fixed wheel bracket 1, and the guide wheel 6 is disposed at the bottom of the guide wheel bracket 4. For example, a 60 × 60 square tube is used as the guide wheel support 4, the guide wheel support 4 is positioned after the handrail support 7 is reserved at the end of the fixed wheel support 1, namely, 60mm is reserved at each of two sides, the guide wheel support and the fixed wheel support 1 are fixed in a welding mode, and the distance between the guide wheels 6 is 480 mm. The leading wheel 6 is provided with two sets ofly about the interval, chooses for use 2 blocks delta =10mm steel sheets as leading wheel fixed plate 5, and the size is based on the connecting plate size unloading of purchasing finished product leading wheel 6 top and joins in marriage the drilling, and leading wheel fixed plate 5 adopts welded mode fixed with leading wheel support 4, adopts standard nut, gasket to be connected with leading wheel 6.

As shown in fig. 1 to 3, the armrest support 7 is disposed at the rear end of the fixed wheel support 1 in an inclined manner at a certain angle, and an armrest 8 is disposed on the top of the armrest support 7. For example, a 60 × 60 square tube is selected as the handrail support 7, and is subjected to bending or welding treatment according to the illustrated pattern, so as to be fixed to both ends of the fixed wheel support 1, namely, both sides of the upright post of the guide wheel support 4, for the purpose of stress balance and fixation of the lifting arm 9, and the connection mode adopts a welding mode, and holes are drilled at the connection part of the fixed wheel support and the lifting arm 9 according to needs. The handrails 8 are two, 2 pieces of phi 25 round steel are selected as the handrails 8, the length convenient to operate is set, the end heads of the handrails are rounded, and the handrails are welded to the positions, convenient to operate, of the handrail support 7.

As shown in fig. 1 to 3, the upper end of the lifting arm 9 can be rotatably connected to the upper end of the armrest support 7 along a left-right axis, the lower end of the lifting arm 9 is connected to a movable tray 11, and the movable tray 11 is disposed forward. For example, according to parameters such as the cylinder outer diameter of the manual hydraulic lift cylinder 14, a 14a channel steel is selected as the lift arm 9, and two ends of the lift arm 9 are respectively connected to the armrest support 7 and the movable tray 11 by adopting standard through shafts, nuts, gaskets and the like.

Further, as shown in fig. 3, in the present embodiment, both the upper end of the armrest support 7 and the rear end of the movable tray 11 are provided with through shafts extending in the left-right direction; the upper end and the lower extreme of lifing arm 9 can be followed the axis rotation of left-right direction respectively and are connected two and lead to the axle, and every leads to the axle box and establishes and install two lifing arm spacing rings 10, and every leads to epaxial two lifing arm spacing rings 10 and locates the left side and the right side of lifing arm 9 branch. In order to avoid the left and right movement of the lifting arm 9 on the through shaft in the lifting process, 2 sections of phi 32 steel pipes are respectively arranged on through shaft gaps between the lifting arm 9 and the handrail support 7 and between the lifting arm 9 and the two sides of the movable tray 11 to serve as lifting arm limiting rings 10, the lifting arm limiting rings 10 are not fixedly arranged on the outer sides of the through shafts, and lubricating grease can be properly added for lubrication in the using process to reduce the abrasion in the rotating process.

As shown in fig. 1 and fig. 3, in this embodiment, a 60 × 60 square tube is used as a main material of the movable pallet 11, wherein, for facilitating the loading and unloading of the goods to be transported or moved, 10a channel steel is used as the front end of 2 forks, and the ends of the channel steel are processed by beveling, and the upper part of the movable pallet 11 is respectively provided with a connection reserved part of the lifting arm 9 and the safety pull rod 13, and holes are drilled according to the diameters of the through shaft and the bolt connected with the connection reserved part.

Further, as shown in fig. 1 to 3, in this embodiment, the pedal-type hydraulic lifting cart further includes two safety pull rods 13, and the two safety pull rods 13 are respectively disposed on the left side and the right side of the lifting arm 9; two ends of each safety pull rod 13 can be respectively connected with the upper end of the handrail support 7 and the upper end of the movable tray 11 in a rotating way along a left-right axis. For example, 2 phi 30 seamless steel tubes are selected as the safety pull rod 13 to prevent the whole trolley from deforming and twisting when the trolley is transported or moved to a specified position to lift, the standard bolts, nuts, gaskets and the like are respectively adopted to be connected to the two sides of the handrail support 7 and the movable tray 11, 2 steel plates with delta =10mm are welded on the handrail support 7 to be used as the safety pull rod fixing plate 12, corresponding bolt holes are drilled at the lower end of a top layer cross beam of the movable tray 11 in advance according to the diameters of a lifting arm through shaft and a safety pull rod connecting bolt, and during drilling, care needs to be taken to ensure that the safety pull rod 13 and the lifting arm 9 are kept parallel after being assembled.

As shown in fig. 1 to 3, a piston rod of the manual hydraulic lift cylinder 14 can be rotatably connected with the lift arm 9 along a left-right axis, and a cylinder body of the manual hydraulic lift cylinder 14 can be rotatably connected with the rear end of the fixed wheel bracket 1 along a left-right axis; the pedal lifting device 17 is connected with a hand-operated handle of the manual hydraulic lifting cylinder 14 and is used for driving a piston rod of the manual hydraulic lifting cylinder 14 to extend out through the pedal lifting device 17; the foot-operated exhaust pressure relief device 20 is connected to the pressure relief valve of the manual hydraulic lift cylinder 14 for adjusting the pressure relief valve of the manual hydraulic lift cylinder 14 via the foot-operated lift device 17. For example, a manual hydraulic lifting cylinder 14 is selected according to the lifting height of a user, which is convenient to operate, carry and move goods, the manual hydraulic lifting cylinder 14 is selected to be 0-1000mm in stroke, two ends of the manual hydraulic lifting cylinder 14 are respectively connected to a lifting arm 9 and a cross beam of a fixed wheel support 1, 2 steel plates with the delta =10mm are welded on the lifting arm 9 to serve as lifting cylinder piston rod fixing plates 15, the distance between the lifting cylinder piston rod fixing plates 15 is preferably + 1.5-2 mm of the thickness of a connecting part at the front end of a piston rod, the bottom of the manual hydraulic lifting cylinder 14 and the fixed wheel support 1 are in hinge connection formed by sleeving of a phi 22 steel pipe and a phi 20 round steel pipe, the manual hydraulic lifting cylinder fixing device 16 is welded on the fixed wheel support 1, and the purpose of the hinge connection is to ensure that the manual hydraulic lifting cylinder 14 can rotate and lift properly in the lifting process. According to the diameter of a hand-operated handle of the hand-operated hydraulic lifting cylinder 14, a steel pipe with matched specifications is selected as a main material of a pedal lifting device 17 of the hand-operated hydraulic lifting cylinder, the steel pipe needs to freely penetrate into a ratchet wheel operation pipe hand-operated by the hand-operated hydraulic lifting cylinder 14, the surrounding gap is not too large, a steel plate with the diameter of delta =10mm is welded on one side close to an operator to serve as a pedal, a stud 18 is welded on the end head of the other side corresponding to the vertical position of a bottom plate, a spring 19 is connected between the end part of the steel pipe and the stud, so that the ratchet wheel can be conveniently reset in the pedal retracting process, and the aim of pedal cycle operation is fulfilled. According to the diameter of the pressure relief valve pipe of the manual hydraulic pressure lift cylinder 14, a matched steel pipe is selected as a main material of the pedal exhaust pressure relief device 20 of the manual hydraulic pressure lift cylinder, 2 plectrums which are matched with the pressure relief valve and operate in the steel pipe are selected according to the plectrum form in the pressure relief valve, a steel plate with the diameter of delta =10mm is welded on the outer side of the steel pipe to serve as a pedal plate which can realize left and right, the steel pipe and the inner plectrum are driven when the pedal steel plate is stressed left and right, the plectrum of the pressure relief valve is clamped by the inner 2 plectrums to stir the pressure relief valve of the manual hydraulic pressure lift cylinder 14, and then the functions of the pedal exhaust pressure relief device are realized, namely the functions of locking and pressure relief.

Through the design of the pedal type hydraulic lifting trolley, the problems of transferring and moving of various construction materials, equipment and fittings, goods in places such as families, markets and the like and goods in other places on a construction site are mainly solved; the foot-operated hydraulic lifting trolley realizes automatic loading and unloading of goods such as materials, equipment components and the like with insertion spaces at the bottom, is provided with a manual hydraulic cylinder with a stroke of 0-1000mm, is matched with a pedal plate, and controls the stroke of the manual hydraulic cylinder through foot operation, so that the purpose of up-and-down moving the goods such as the materials, the equipment components and the like in a certain stroke is realized, and great convenience is provided for transferring and moving the goods such as various materials, the equipment components and the like.

The specific operation method of the pedal type hydraulic lifting trolley comprises the following steps:

(1) preparing, manufacturing and assembling the pedal type hydraulic lifting trolley according to the steps, and lubricating parts needing to rotate by using lubricating grease to avoid the phenomenon of jamming in the lifting process;

(2) checking the use mark and the oil injection amount of lubricating oil in the manual hydraulic lifting cylinder, strictly forbidding using wrong mark oil and avoiding the condition that the oil injection amount is small and cannot reach the stroke of the manual hydraulic lifting cylinder;

(3) the reverse pedal air exhaust pressure relief device enables the manual hydraulic lifting cylinder to be in a locking state;

(4) the foot-operated hydraulic lifting trolley is pushed to a cargo to be transported, or the transported and moved cargo is moved to the trolley, or a pallet fork is inserted into the bottom of the cargo to be transported and moved, and attention should be paid to ensure that the cargo is stably and centrally placed on a movable tray;

(5) under the action of the spring, the pedal lifting device can be circulated, so that a piston rod of a manual hydraulic cylinder of the pedal lifting device is extended to drive the lifting arm to rotate around a through shaft connected with the handrail bracket, and further drive the tray to lift, and meanwhile, the movable tray rotates around the through shaft connected with the lifting arm by gravity, so that the balance of goods on the fork is ensured;

(6) after the lifting arm drives the movable tray and the goods to be lifted to the height required, the lifting arm can drive the goods to freely move the pedal type hydraulic lifting trolley back and forth, left and right so as to meet the requirement of stopping to the final accurate height and position required, and wood balms or articles which can bear the weight and slightly exceed the height of the fixed wheel need to be placed in advance at the lower falling position of the lifting arm, so that the goods are ensured to be stably placed on the lifting arm, and the purpose that the fixed wheel can be smoothly drawn out to drive the fixed support and the movable tray can be achieved;

(7) the intermittent pedal air exhaust pressure relief device slowly relieves pressure for multiple times until goods are placed on wood purlin placed in advance or objects capable of bearing the weight;

(8) after the goods are completely placed on the wood balk or the load-bearing goods, the pedal type hydraulic trolley and the transported or moved goods are in a free state, the trolley can be drawn out, and the pedal type exhaust pressure relief device is confirmed, so that the hydraulic lifting cylinder is in a reset state;

(9) the above actions are repeated, and the movement of the horizontal or vertical distance of the multiple articles can be realized.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (5)

1. A foot-operated hydraulic lifting handcart is characterized by comprising a fixed wheel bracket, a handrail bracket, a lifting arm, a movable tray, a manual hydraulic lifting cylinder, a foot-operated lifting device and a foot-operated exhaust pressure relief device; the fixed wheel is arranged at the bottom of the fixed wheel support, the handrail support is obliquely arranged at the rear end of the fixed wheel support at a certain angle, and a handrail is arranged at the top of the handrail support; the upper end of the lifting arm can be rotatably connected with the upper end of the armrest support along a left-right axis, the lower end of the lifting arm is connected with the movable tray, and the movable tray is arranged forwards; a piston rod of the manual hydraulic lifting cylinder can be rotationally connected with the lifting arm along a left-right axis, and a cylinder body of the manual hydraulic lifting cylinder can be rotationally connected with the rear end of the fixed wheel bracket along the left-right axis; the pedal lifting device is connected with a hand-operated handle of the manual hydraulic lifting cylinder and is used for driving a piston rod of the manual hydraulic lifting cylinder to extend out through the pedal lifting device; the pedal exhaust pressure relief device is connected with the pressure relief valve of the manual hydraulic lifting cylinder and used for adjusting the pressure relief valve of the manual hydraulic lifting cylinder through the pedal lifting device.

2. The pedal-type hydraulic lifting trolley according to claim 1, wherein the fixed wheel is arranged at the front end of the fixed wheel support, a guide wheel support is arranged at the rear end of the fixed wheel support, and a guide wheel is arranged at the bottom of the guide wheel support.

3. The pedal-type hydraulic lifting trolley as claimed in claim 1, wherein the upper end of the armrest support and the rear end of the movable tray are both provided with a through shaft extending in the left-right direction;

the upper end and the lower extreme of lifing arm can be followed the axis rotation of left-right direction respectively and are connected two lead to the axle, every lead to the axle sleeve and establish and install two lifing arm spacing rings, every lead to epaxial two lifing arm spacing rings and separately locate the left side and the right side of lifing arm.

4. The pedal-powered hydraulic lifting trolley according to claim 1, further comprising two safety pull rods, wherein the two safety pull rods are respectively arranged on the left side and the right side of the lifting arm;

two ends of each safety pull rod can be respectively connected with the upper end of the handrail support and the upper end of the movable tray in a rotating mode along a left-right axis.

5. The pedal-powered hydraulic lifting trolley according to claim 1, further comprising a spring, wherein two ends of the spring are respectively connected to the pedal lifting device and the fixed wheel bracket.

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