CN105128906B - Accompanying bag luggage van - Google Patents

Abstract

The present invention discloses a luggage trolley with accompanying bags, and the technical problem to be solved is that it is easy to carry, stable in walking, and has a simple and reliable structure. In order to solve the above problems, the present invention includes a foldable luggage frame and a bag for holding items movably connected to the luggage frame, the luggage frame is provided with a retractable pull rod, the pull rod is composed of at least three hollow rod bodies, a front leg sliding sleeve that can slide along the axial direction of the hollow rod body is provided outside the hollow rod body at the bottom, and front legs are provided on the left and right sides of the front leg sliding sleeve respectively, the upper end of the front leg is movably connected to the front leg sliding sleeve through a rotating shaft, so that the front leg can rotate on the left and right sides of the front leg sliding sleeve, the axis of the rotating shaft on the front leg is parallel to the left and right sides of the front leg sliding sleeve, and a front leg roller is provided at the lower end of the front leg. Compared with the prior art, by providing foldable front and rear legs, the volume is reduced after folding, and the design of each component greatly reduces the wasted space after folding, and it is convenient for daily carrying after folding.

Description

luggage trolley

technical field

The invention relates to a trolley, in particular to a trolley with luggage.

Background technique

Existing luggage carts with storage bags have the following disadvantages: 1. They can only be partially retracted and folded, and the size is relatively large; regardless of the folded size of two-wheeled or four-wheeled luggage carts, they cannot be carried on a daily basis; When the four-wheeled luggage cart is in the push state, the bag is in an upright state, the push rod is 90 degrees to the direction of travel, and the area between the four wheels is small. When pushing with force, it is easy to cause direction and rollover, especially on rough surfaces. On the ground, it is more likely to be difficult to push; 3. Since the push rod is on the storage bag, the arms need to be stretched flat when pushing, causing discomfort and fatigue, and the feet are also very easy to step on the storage bag and luggage cart; 4. Two Since the luggage trolley with two wheels has no steering wheels, the direction of pushing is determined by the direction of rotation of the wheels rather than the direction of force on the luggage trolley. Therefore, it can only be dragged but not pushed when in use; 5. The handle is inconsistent with the direction of the human body's force control, causing Discomfort and fatigue; 6. There is no suitable handle, which is extremely inconvenient when it needs to be lifted as a whole; 7. If it is to be applied to larger items, the existing luggage cart with a storage bag cannot be used because the size of the storage bag is limited and difficult to remove.

Contents of the invention

The object of the present invention is to provide a luggage trolley with accompanying bag, and the technical problem to be solved is that it is easy to carry, stable in walking and simple and reliable in structure.

In order to solve the above-mentioned problems, the present invention adopts the following technical solutions: a luggage trolley with luggage, which includes a foldable luggage frame and a storage bag movably connected on the luggage frame, and the luggage frame is provided with a telescopic pull rod , the tie rod is composed of at least three hollow rod bodies, and the lowermost hollow rod body is provided with a front leg sliding sleeve that can slide axially along the hollow rod body. The upper end is movably connected with the front leg sliding sleeve through the rotating shaft, so that the front leg can rotate on the left and right sides of the front leg sliding sleeve. Features front leg rollers.

The lower end of the lowermost hollow rod body of the present invention is connected with a front leg connecting rod connecting seat, and a front leg connecting seat hole parallel to the shaft axis of the front leg is provided on both sides of the front leg connecting rod connecting seat, and the front leg connecting seat hole is Through the front and rear ends of the front leg link connecting seat, front leg connecting rods are arranged on the left and right sides of the front end of the front leg connecting rod connecting seat, and the front leg connecting rod is arranged on the opposite side of the two front leg connecting rods. The front leg connecting rod shaft extending from the rear end surface, the front leg connecting rod is connected with the front leg connecting seat hole through the front leg connecting rod shaft, so that the front leg connecting rod can rotate around the front leg connecting rod connecting seat, and the front leg connecting rod passes through The front leg pivot pin is connected with the front end face of the front leg.

In the present invention, a rear support rod sliding sleeve is provided on the lowermost hollow rod body and above the front leg sliding sleeve, and a support with an axis parallel to the rear end surface of the rear support rod sliding sleeve is provided on the rear end surface of the rear support rod sliding sleeve. A rod bushing is provided with a rear supporting rod on the rear supporting rod sliding sleeve, and the upper end of the rear supporting rod is inserted in the supporting rod bushing; A shaft hole of the first rear support rod parallel to the axis, a rear support rod is provided between the rear support rod and the connecting seat of the front leg link, and the front end of the rear support rod is connected with the shaft hole of the first rear support rod through a rotating shaft; The rear end of the support rod is provided with a second rear support rod shaft hole, and the rear support rod is provided with a rear support rod shaft spanning the left and right sides of the rear support rod, and the rear support rod shaft is inserted in the second rear support rod shaft hole Inside.

The rear leg mechanism on the lowermost hollow rod body of the present invention, the rear leg mechanism includes two rear legs, and the upper end of the rear leg is connected to the lowermost hollow rod body through the rear leg sliding sleeve sleeved on the lowermost hollow rod body , the rear leg hinge seat is provided on the rear end surface of the rear leg sliding sleeve, the rear leg hinge seat holes are respectively provided on the left and right sides of the hind leg hinge seat, and the rear leg hinge seat holes are respectively provided with the rear leg hinge seat holes The rear leg shafts connected by the hole walls on the left and right sides, the upper ends of the rear legs are respectively connected to the rear leg hinge seat holes through the rear leg shafts, and the openings of the two rear leg hinge seat holes are inclined towards the left and right sides of the hollow rod body, so that When the hind legs are opened, an inverted V shape is formed between the two hind legs.

The rear end surface of the front leg connecting rod connecting seat of the present invention is provided with a rear leg rod shaft hole, and the axis of the rear leg rod shaft hole is parallel to the rear end face of the hollow rod body; the rear end face of the front leg connecting rod connecting seat is parallel to A rear leg rod is arranged between the two rear legs, and the front end of the rear leg rod is connected in the shaft hole of the rear leg rod, and a rear leg limiter is respectively provided in the middle of the opposite sides of the two rear legs, and the rear leg The pull rod limiter is fixed on the rear leg, and the limiter connecting piece extending toward the front end of the rear leg is arranged on the rear leg pull rod limiter, and the connecting piece shaft hole is provided on the limiter connecting piece. Both sides of the rear end of the leg pull rod respectively pass through the shaft hole of the connecting piece and are flexibly connected with the rear leg.

The rear end of the rear leg sliding sleeve of the present invention is provided with a handle, and the handle is connected to the pull handle; a locking mechanism is provided on the rear end of the rear leg sliding sleeve, and the locking mechanism includes a The cavity at the upper part of the rear end of the sleeve, the lower end of the cavity extends to between the hinge seat holes of the two hind legs, between the hinge seat holes of the two hind legs, the rear end surface of the sliding sleeve of the rear legs is provided with a hole communicating with the cavity The first driving rod hole; between the two rear leg hinge seat holes, the rear lower end surface of the rear leg sliding sleeve is provided with a second driving rod hole communicating with the cavity, and the first driving rod is located in the cavity The hole is provided with a driving rod connected in the cavity through a rotating shaft. The driving rod is L-shaped. One end of the driving rod extends out of the rear leg sliding sleeve from the first driving rod hole to form a driving part. The other end extends out of the rear leg sliding sleeve from the middle of the second lever hole to form a clamping part. A raised clamping hole is provided on the rear end surface of the front leg sliding sleeve. When locking, the clamping part and the clamping hole Clamping, at this time the driving rod is tilted towards the rear end surface of the hollow rod body; a slider is provided in the cavity and above the driving rod, and a protruding arc surface is provided on the rear side of the lower end surface of the slider, and the lower end of the arc surface is in contact with the dial The upper end surface of the rod is in contact, and the first slope surface whose height gradually decreases from the front end wall of the cavity to the rear end wall of the cavity is provided on the front side of the upper end of the slider, and a top block is provided on the upper end of the slider and in the cavity , a spring is provided between the rear end of the top block and the rear end wall of the cavity, and a second slope is provided on the front side of the lower end of the top block, and the second slope fits with the first slope, and the cavity A positioning hole is provided on the front end wall corresponding to the position of the top block, and a positioning column that can extend into the positioning hole is provided on the front surface of the top block, and a positioning hole for the rod body is provided on the rear side of the hollow rod body at the bottom end. .

The handle of the present invention is a hollow cylinder, handle holes are respectively provided on the left and right end faces of the handle, handles are arranged on the left and right end faces of the handle, and the upper end of the handle is inserted into the handle In the hole, slider wings are provided on both sides of the front end of the slider, and a slider sleeve is provided at the upper end of the slider wing. The axis of the slider sleeve is parallel to the rear end surface of the hollow rod body, and the lower ends of the two handles are Insert and secure in the slider bushing.

The upper end of the uppermost hollow rod body of the present invention is provided with a handle, and the handle is connected to the uppermost hollow rod body through a position and angle adjustment mechanism, and the position and angle adjustment mechanism includes a lock push rod arranged in the uppermost hollow rod body , a push rod block is provided on the upper end of the lock push rod, the handle is a hollow structure, and a first handle through groove extending from the middle of the handle to one end surface of the handle is provided on the lower end side of the handle. One handle through slot is provided with more than one through slot positioning arc pit for positioning; the first handle through slot communicates with the cavity inside the handle, and a casing with external thread on the outer wall is provided on the lock push rod , the upper end of the lock push rod and the casing both extend into the cavity from the first handle through groove, the push rod block is arranged in the cavity, and the upper end of the handle is arranged in the cavity and on the sleeve, and the upper pressure piece of the handle There is an internal thread hole on the top of the handle, and the upper pressure part of the handle is threadedly connected with the external thread of the sleeve through the internal thread. The lower end surface of the upper pressure part of the handle is an arc surface, between the handle and the uppermost hollow rod There is a handle lower support, the upper end surface of the handle lower support is a circular arc surface, and a locking connection block is provided on the lower end of the sleeve and the lock push rod, and the locking connection block is fixedly connected with the lower end of the sleeve , the upper end of the sleeve runs through the handle lower bracket, the handle upper pressure piece, and is threadedly connected with the inner threaded hole of the handle upper pressure piece, and a screw threaded connection with the sleeve pipe is provided between the sleeve pipe and the locking connection block Tighten the nut. Tighten the nut to compress the handle lower holder and the handle upper pressure piece. The upper end of the handle lower holder is against the lower end surface of the handle, and the locking connection block is installed in the upper opening of the uppermost hollow rod body; The other end face of the handle is provided with a handle opening, a handle extension part that can extend from the handle opening is provided in the cavity, and a second handle through slot extending from the middle of the upper end of the handle to the handle opening is provided at the upper end of the handle. The rear end of the handle extension is provided with a guide block arranged in the second handle slot, the rear end surface of the handle extension is located in the cavity with an extension nut, and the front end of the handle extension is provided with a through handle The extension part is screwed with the extension handle threadedly connected with the expansion nut of the extension part.

A bearing frame is arranged between the two front legs of the present invention, and the bearing frame is composed of two bearing frame pieces, one end of the two bearing frame pieces is hinged to each other, and the other end is movably connected with the outer surfaces of the two front legs respectively through a rotating shaft.

The upper end of the storage bag according to the present invention has an opening, and the middle part of the left and right sides of the storage bag has a first crease line, and the first crease line is arranged along the height direction of the storage bag. A second crease line extending to the first crease line is provided at the corner, and a triangle is formed between the second crease line, the first crease line and the lower edge of the side, and a second crease line is provided at the lower end of the back of the storage bag. A hook, the first hook is a peg with a T-shaped cross section, the front leg link is provided with a hanging hole, the back of the storage bag is provided with a load-bearing bar, and the middle of the load-bearing bar is provided with a second Three hooks, the cross-section of the third hook is T-shaped, and there is a rod hanging hole on the hollow rod in the middle. The rod hanging hole is an inverted gourd-shaped hole, and the two ends of the load-bearing rod are provided with load-bearing The hanging hole is provided with a second hook corresponding to the position of the load-bearing rod hanging hole on the storage bag. The cross section of the second hook is a T-shaped peg. The bottom surface is provided with several load-bearing reinforcing blocks arranged horizontally and at intervals, and the middle part of the bottom surface of the storage bag is provided with a third crease line, and the third crease line is parallel to the lower edge of the front or back of the storage bag.

The upper end of the storage bag according to the present invention has an opening, and the middle part of the left and right sides of the storage bag has a first crease line, and the first crease line is arranged along the height direction of the storage bag. A second crease line extending to the first crease line is provided at the corner, and a triangle is formed between the second crease line, the first crease line and the lower edge of the side, and a second crease line is provided at the lower end of the back of the storage bag. A hook, the first hook is a peg with a T-shaped cross section, the front leg link is provided with a hanging hole, the back of the storage bag is provided with a load-bearing bar, and the middle of the load-bearing bar is provided with a second Three hooks, the cross-section of the third hook is T-shaped, and there is a rod hanging hole on the hollow rod in the middle. The rod hanging hole is an inverted gourd-shaped hole, and the two ends of the load-bearing rod are provided with load-bearing The hanging hole is provided with a second hook corresponding to the position of the load-bearing rod hanging hole on the storage bag. The cross section of the second hook is a T-shaped peg. The bottom surface is provided with several load-bearing reinforcing blocks arranged at intervals, and the middle part of the bottom surface of the storage bag is provided with a third crease line. The third crease line is parallel to the lower edge of the front or back of the storage bag. The middle part of the front, the back, and both sides is provided with a week of fourth crease lines, and the load-bearing reinforcing block is vertically arranged in the lower back of the storage bag and in the bottom surface, and the load-bearing reinforcing block arranged on the bottom surface of the storage bag takes the third The crease lines are respectively arranged at intervals on both sides of the bottom surface of the storage bag.

Compared with the prior art, the present invention reduces the volume after folding by setting the retractable front and rear legs, and the design of each component greatly reduces the empty space after folding, which is convenient for daily carrying after folding; the legs are spread apart when unfolded The four-wheel structure and the oblique setting of the stretching rods make the weight of the contents fully borne by the ground, making walking more stable, and also ensuring the stability of the objects and avoiding people's feet touching the pedals when pushing.

Description of drawings

Figure 1-1 is a schematic structural view of the present invention.

1-2 are schematic diagrams of the connection structure between the folded luggage frame and the storage bag of the present invention.

Fig. 2-1 is a schematic structural diagram of Embodiment 1 of the present invention.

Fig. 2-2 is a schematic diagram of an open state of Embodiment 1 of the present invention.

Fig. 3-1 is a schematic diagram of the connection structure between the front leg and the front leg connecting rod of the present invention.

Fig. 3-2 is a schematic structural view of the present invention when the front legs are folded.

Fig. 4-1 is a schematic structural diagram of Embodiment 2 of the present invention.

Fig. 4-2 is a schematic diagram of the structure when the rear legs are folded after pulling up the handle according to Embodiment 2 of the present invention.

Fig. 4-3 is a schematic diagram of the fully folded structure of Embodiment 2 of the present invention.

Fig. 4-4 is a schematic diagram of the connection structure between the rear leg and the telescopic rod according to Embodiment 2 of the present invention.

4-5 are structural schematic diagrams of the second embodiment of the present invention after the rear legs are fully folded.

4-6 are schematic diagrams of the connection structure between the rear leg rod and the rear leg in Embodiment 2 of the present invention.

4-7 are schematic structural views of the rear leg sliding sleeve according to Embodiment 2 of the present invention.

4-8 are schematic cross-sectional structural views of the rear leg sliding sleeve of Embodiment 2 of the present invention.

4-9 are schematic diagrams of the connection structure between the handle and the slider in Embodiment 2 of the present invention.

Fig. 5-1 is a schematic diagram of the connection structure between the bearing frame and the front leg of the present invention.

Fig. 5-2 is a structural schematic diagram of the supporting frame of the present invention.

Fig. 5-3 is a schematic structural view of the bearing frame of the present invention when it is folded.

Fig. 6-1 is a schematic structural view of the handle according to Embodiment 2 of the present invention.

Fig. 6-2 is a sectional view of the handle according to Embodiment 2 of the present invention.

Fig. 7 is a schematic diagram of the connection structure between the roller and the front leg of the present invention.

Fig. 8-1 is a schematic diagram of the internal structure of the handle of the present invention.

Fig. 8-2 is a schematic diagram of the connection structure between the handle and the hollow rod body of the present invention.

Fig. 8-3 is a structural schematic diagram of the handle of the present invention.

Fig. 8-4 is a schematic diagram of the connection structure between the handle and the extension handle of the present invention.

Fig. 8-5 is a schematic diagram of the lower structure of the handle of the present invention.

Fig. 8-6 is a schematic diagram of an exploded structure between the handle and the hollow rod body of the present invention.

Fig. 9-1 is a structural schematic diagram of the reinforcing block of the storage bag of the present invention.

Fig. 9-2 is a schematic structural view of the first storage bag of the present invention.

Fig. 9-3 is a schematic diagram of the bottom structure of the first storage bag of the present invention.

Fig. 9-4 is a schematic diagram of folding the first storage bag of the present invention in half.

Fig. 9-5 is a schematic view of the first storage bag of the present invention after being rolled.

Fig. 10-1 is a schematic structural view of the second storage bag of the present invention.

Fig. 10-2 is a schematic diagram of the folded state of the second storage bag of the present invention.

Fig. 10-3 is a schematic diagram of the second storage bag of the present invention after it is completely folded in half.

Fig. 10-4 is a schematic diagram of the second storage bag of the present invention folded in half again.

Fig. 10-5 is a schematic diagram of the second type of storage bag rotating load-bearing rod and rolled up according to the present invention.

Fig. 11-1 is a schematic diagram of the connection structure between the storage bag and the luggage frame of the present invention.

Fig. 11-2 is a schematic diagram of the connection structure between the storage bag and the load-bearing rod of the present invention.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1-1, the present invention comprises a foldable luggage frame 1 and a storage bag 2 movably connected on the luggage frame 1, the luggage frame 1 is provided with a telescopic pull rod 11, and the pull rod 11 consists of three sections The above hollow rod body 12 is formed.

As shown in Figure 2-1, a front leg sliding sleeve 13 that can slide axially along the hollow rod body 12 is provided outside the hollow rod body 12 at the lowermost end. The upper end of leg 14 is movably connected with front leg sliding sleeve 13 by rotating shaft, makes front leg 14 can rotate in front leg sliding sleeve 13 left and right sides, the axis of the rotating shaft on the described front leg 14 and front leg sliding sleeve 13 left and right sides The sides are parallel, that is, parallel to the sides of the hollow rod body 12 , and a front leg roller 15 is provided at the lower end of the front leg 14 .

As shown in Figure 3-1, the lower end of the lowermost hollow rod body 12 is connected with the front leg connecting rod connecting seat 3, and on the left and right sides of the front leg connecting rod connecting seat 3, there are front shafts parallel to the shaft axis of the front leg 14. Leg connecting seat hole 31, front leg connecting seat hole 31 runs through the front and rear ends of front leg connecting rod connecting seat 3, front leg connecting rod 32 is provided at the front end left and right sides of front leg connecting rod connecting seat 3, two front legs The opposite side of the connecting rod 32 is provided with a front leg connecting rod shaft 33 extending towards the rear end surface of the front leg connecting rod 32, and the front leg connecting rod 32 is connected with the front leg connecting seat hole 31 through the front leg connecting rod shaft 33 Realize that the front leg link 32 can rotate around the front leg link connecting seat 3, the front leg link 32 is connected with the front end face of the front leg 14 through the front leg pivot pin 34, realize that the front leg link 32 is also on the front leg 14 Turn on the front face. Preferably, the front leg pivot pin 34 is arranged at the middle part of the front leg link 32, and the front leg pivot pin 34 is fixed on the middle part of the front leg 14;

After the front leg 14 is fully opened, a front leg sliding sleeve stop projection 36 is provided on the lowermost hollow rod body 12 near the front leg connecting rod connecting seat 3, and the front leg sliding sleeve 13 slides to the lowermost hollow rod body 12, the front leg sliding sleeve stop projection 36 limits the front leg sliding sleeve 13 to continue to slide downward;

As shown in Figure 3-2, when the front legs 14 are folded, while the front legs 14 rotate in the front leg sliding sleeve 13, the front leg sliding sleeve 13 moves along the hollow rod body 12, and drives the front leg connecting rod 32 to rotate upwards. After the front legs 14 are fully folded, the inner side surfaces of the front legs 14 are attached to the left and right sides of the lowermost hollow rod body 12 respectively, and finally the front leg connecting rod 32 is parallel to the axis of the front legs 14. At this time, the luggage rack 1 The front legs 14 are folded and completed.

As shown in Figure 2-2, the structure schematic diagram of Embodiment 1 of the present invention, the rear support rod sliding sleeve 4 is arranged on the hollow rod body 12 at the bottom end and above the front leg sliding sleeve 13, and the rear support rod sliding sleeve 4 The rear end face is provided with the support rod axle sleeve 41 that the axis is parallel to the rear end face of the rear support rod sliding sleeve 4, and the rear support rod sliding sleeve 4 is provided with a rear support rod 42, and the rear support rod 42 is a square pole. The upper end of the rear support rod 42 is inserted in the support rod sleeve 41, so that the rear support rod 42 rotates on the support rod sleeve 41, and the support rod sliding sleeve 4 can move up and down along the rear end surface of the hollow rod body 12; The rear end surface of the connecting rod connecting seat 3 is provided with a first rear supporting rod shaft hole 35 parallel to the axis of the supporting rod bushing 41, and a rear supporting rod 43 is arranged between the rear supporting rod 42 and the connecting rod connecting seat 3 of the front leg. , the front end of the rear support rod 43 is connected with the first rear support rod shaft hole 35 through a rotating shaft, so that the rear support rod 43 is flexibly connected to the front leg link connecting seat 3; the rear end of the rear support rod 43 is provided with a second The rear support rod shaft hole 44 is provided with a rear support rod rotating shaft 45 spanning the left and right sides of the rear support rod 42 on the rear support rod 42, and the rear support rod rotating shaft 45 is inserted in the second rear support rod shaft hole 44, so that The rear end of the rear support rod 43 is movably connected with the rear support rod 42 , and the rear support rod rotating shaft 45 is preferably arranged in the middle of the rear support rod 42 .

As shown in Figure 2-1, when the rear support rod 42 is retracted, the rear support rod 42 is closed towards the rear end surface of the hollow rod body 12, and under the action of the rear support rod 43, the rear support rod sliding sleeve 4 is moved along the bottom end. The hollow rod body 12 slides to the upper end, and finally the rear support rod 42 is closed and stowed.

As shown in Figure 4-1, the difference between Embodiment 2 of the present invention and Embodiment 1 is that the rear support rod 42 is eliminated, and a rear leg mechanism with rear leg rollers is added instead.

The rear leg mechanism includes two rear legs 5, the upper ends of the rear legs 5 are connected to the lowermost hollow rod body 12 through the rear leg sliding sleeve 51 which is sleeved on the lowermost hollow rod body 12, as shown in Fig. 4-4 and Fig. 4 As shown in -5, the rear leg hinge seat 52 is provided on the rear end surface of the rear leg sliding sleeve 51, the rear leg hinge seat hole 53 is respectively provided on the left and right sides of the rear leg hinge seat 52, and the rear leg hinge seat hole 53 The rear leg shaft 54 that is connected to the hole walls on the left and right sides of the rear leg hinge seat hole 53 is respectively arranged in the middle, and the upper end of the hind leg 5 is connected with the rear leg hinge seat hole 53 through the rear leg shaft 54 respectively, thereby being flexibly connected to the rear leg hinge. On the seat 52, the openings of the two rear leg hinge seat holes 53 are inclined towards the left and right sides of the hollow rod body 12, so that when the rear legs 5 are opened, an inverted V shape is formed between the two rear legs 5.

The rear end face of the front leg connecting rod connecting seat 3 is provided with a rear leg rod shaft hole 55, the axis of the rear leg rod shaft hole 55 is parallel to the rear end face of the hollow rod body 12; the rear end face of the front leg connecting rod connecting seat 3 A rear leg pull rod 56 is arranged between the two rear legs 5, the rear leg pull rod 56 is a trapezoidal strut, the width of its front end is smaller than the width of the rear end, and the front end of the rear leg pull rod 56 is connected in the rear leg pull rod shaft hole 55 , as shown in Figure 4-6, in the middle part of the opposite side of the two rear legs 5, rear leg rod stoppers 57 are respectively provided, and the rear leg rod stoppers 57 are fixed on the rear legs 5. The tie bar stopper 57 is provided with a stopper connecting piece 58 extending towards the front end of the rear leg 5, and a connecting piece shaft hole 59 is provided on the stopper link 58. The sides respectively pass through the shaft holes 59 of the connecting piece and are movably connected with the rear legs 5;

As shown in Figures 4-2 and 4-5, when the rear legs 5 are folded, the rear legs move closer to the rear end surface of the hollow rod body 12, and due to the effect of the rear leg pull rod 56, the rear leg sliding sleeve 51 is hollowed along the lowermost end. The axial direction of the rod body 12 slides upwards. At this time, the rear leg 5 moves to the rear end cross bar of the rear leg pull rod 56 through the connecting piece shaft hole 59, and finally the rear leg 5 is completely folded, and the two stopper connecting pieces 58 are in the rear The rear end cross bar middle part of leg pull bar 56.

As shown in Figure 4-7 and Figure 4-8, a handle 6 is provided on the rear end of the rear leg sliding sleeve 51, and a handle 6 for connecting with the front leg sliding sleeve 13 is provided on the rear end of the rear leg sliding sleeve 51. Locking mechanism, this locking mechanism comprises the cavity 7 that is arranged on the upper part of the rear end of the rear leg sliding sleeve 51, the lower end of the cavity 7 extends to between the two rear leg hinge seat holes 53, and the two rear leg hinge seat holes Between the 53, the rear end surface of the rear leg sliding sleeve 51 is provided with a first lever hole 71 communicating with the cavity 7; between the two rear leg hinge seat holes 53, under the rear end of the rear leg sliding sleeve 51 A second lever hole 72 communicating with the cavity is provided on the end face, and a lever 73 connected to the cavity 7 through a rotating shaft is provided at the first lever hole 71 in the cavity 7, and the lever 73 is L-shaped. , one end of the driving rod 73 stretches out of the rear leg sliding sleeve 51 from the first driving rod hole 71 to form a driving part 74, and the other end of the driving rod 73 stretches out the rear leg from the middle of the second driving rod hole 72 Outside the sliding sleeve 51, a clamping part 75 is formed, and a raised clamping hole 131 is provided on the rear end surface of the front leg sliding sleeve 13. When locking, the clamping part 75 is clamped with the clamping hole 131. At this time, the driving lever 73 Towards the rear end surface of the hollow rod body 12, the toggle part 74 of the push lever 73 is turned downward, so that the rear end surface of the engaging part 75 is parallel to the inner wall of the front end of the cavity 7, and the engaging part 75 is separated from the engaging hole 131. Thereby the rear leg sliding sleeve 51 is separated from the front leg sliding sleeve 13;

In the cavity 7, above the driving rod 73, a slide block 77 is provided, and the rear side of the lower end surface of the slide block 77 is provided with a protruding arc surface 771, and the lower end of the arc surface 771 contacts the upper end surface of the driving rod 73. The front side of the upper end of 77 is provided with the first slope surface 772 that successively decreases in height from the front end wall of the cavity 7 to the rear end wall of the cavity 7, and the upper end of the slide block 77 and the cavity 7 are provided with a top block 76, A spring 78 is provided between the rear end of the block 76 and the rear end wall of the cavity 7, and a second slope 761 is provided on the front side of the lower end of the top block 76, and the second slope 761 is bonded to the first slope 772. A positioning hole 762 is provided on the front end wall of the cavity 7 corresponding to the position of the top block 76, and a positioning column 763 that can extend into the positioning hole 762 is provided on the front end surface of the top block 76. The rear side of the hollow rod body 12 is provided with a rod body positioning hole 764. When the rear leg sliding sleeve 51 slides downward along the axial direction of the lowermost hollow rod body 12, the front leg sliding sleeve 13 is moved to the front leg sliding sleeve at the same time. When block 36, positioning post 763 just inserts rod body positioning hole 764, makes rear leg sliding sleeve 51 and front leg sliding sleeve 13 be fixed on the corresponding position;

As shown in Figure 4-3, when the rear leg 5 and the front leg 14 are stowed, the rear leg sliding sleeve 51 and the front leg sliding sleeve 13 both slide to the upper end of the lowermost hollow rod body 12 .

As shown in Figures 6-1 and 6-2, the handle 6 is a hollow cylinder, handle holes 61 are respectively provided on the left and right side end faces of the handle 6, and There is a pull handle 62, the upper end of the pull handle 62 is inserted into the handle hole 61, and a limit head 63 is arranged on the upper end of the pull handle 62, so that the pull handle 62 is limited to move in the handle hole 61 of the handle 6. The lower end of the handle 62 is connected with the slider 77, and a handle groove 64 is also provided on the handle hole 61 and the end faces of the left and right sides of the handle 6. When the handle 6 is rotated, the handle 62 can be received in the handle groove 64 Inside, reduce space.

As shown in Figure 4-9, a slider wing 773 is provided on both sides of the front end of the slider 77, and the upper end of the slider wing 773 is provided with a slider bushing 774, the axis of the slider bushing 774 and the hollow rod body 12. The rear end surfaces are parallel, and the lower ends of the two pull handles 62 are respectively inserted and fixed in the slider bushing 774 .

There are three ways to fold the front and rear legs:

(1) Only fold the rear legs: pull the handle 6 directly, drive the handle 62 and the slider 77, and make the top block 76 break away from the positioning hole 762 through the first slope 772 and the second slope 761; continue to apply force to pull the handle Move 6 so that the rear leg sliding sleeve 51 is moved up to fold the rear leg 5. This method is used to lift the whole body with only the front leg or the folded rear leg.

(2) When the four legs are opened, they are all folded: when the front and rear four legs are all opened, directly pull the driving lever 73 on the rear leg sliding sleeve 51 to lift upwards, and the engaging part 75 on the driving rod 73 will first slide the front leg sliding sleeve Hook the card hole 131 on the rear end, and simultaneously push the slider 77 in the 51 of the rear leg sliding sleeve (this piece is connected to the handle 6, but when the slider 77 is driven by the handle 6, it will not drive The driving lever 73 is linked, that is, the clamping part 75 on the driving lever 73 will not hook the clamping hole 131 on the front leg sliding sleeve 13, and drive the front leg 14 to pack), and then the slider 77 pushes the top block 76 to pull out The positioning hole 762 continues to apply a pulling force to the driving rod 73, and the rear leg sliding sleeve 51 (together with the rear leg 5) and the hooked front leg sliding sleeve 13 (together with the front leg 14) are pulled up and folded.

(3) After the rear legs are folded, when the front legs need to be folded again: when the rear legs sliding sleeve 51 (together with the rear legs) has been put away with the force of the hand 6 before it (maybe only the front legs are required for use) , or fold the rear legs and use the handle to lift the luggage cart, or pull up the handle by mistake), at this time, when you want to pack the front legs 14, you need to push the rear leg sliding sleeve 51 (together with the rear legs 5) to move down to the front and rear The four legs are opened, and the state in the above (2) is restored, (when the rear leg sliding sleeve 51 is pushed down, the lower engaging portion 75 of the driving lever 73 will be inserted into the locking hole 131 of the front leg sliding sleeve 13), and then The order of (2) can fold the front and rear four legs.

As shown in Figure 5-1, on the basis of Embodiment 1 and Embodiment 2, a bearing frame 8 can also be provided. The bearing frame 8 is composed of two bearing frame pieces 81, and one end of the two bearing frame pieces 81 is hinged to each other. The other end is movably connected with the outer surfaces of the two front legs 14 respectively through a rotating shaft, so that when it is folded, the supporting frame 8 can be rotated upwards to be folded away.

As shown in Figure 5-2, the mutual hinges of the bearing frames 81 are provided with a hinge piece 83 perpendicular to the front ends of the two bearing frames 81, and a hinge chute 84 is provided on the hinge piece 83. The groove 84 is arranged along the length direction of the hinge piece 83, and the two hinge pieces are inserted into the hinge chute 84 through the hinge shaft 82 whose longitudinal section is an I-shape, thereby connecting the two hinge pieces 83 to each other;

Bearing the rear end outside of frame piece 81 is respectively provided with the connecting portion 85 that bears frame piece 81 vertically setting, and connecting portion 85 is connected with the outer side lower end of front leg 14 by rotating shaft (this rotating shaft is in the same straight line left and right when opening).

As shown in FIG. 5-3 , when the supporting frames 81 are folded together, the hinge shaft 82 is placed at the front ends of the two hinge slide grooves 84 .

When the front leg 14 is in the closed state, the rotating shafts of the connecting portion 85 of the bearer frame piece 81 are not on the same axis, therefore, the bearer frame 8 cannot be opened at this moment. Only when the front leg 14 is opened, the rotating shaft of the connecting portion 85 is on the same axis, and the bearing frame 8 can be opened. In the same way, when folding, the bearing frame 8 must be rotated upwards to make it parallel to the front leg 14, and then the front leg 14 and the bearing frame 8 should be folded simultaneously.

As shown in Figure 7, a fixedly connected front leg roller seat 141 is provided on the lower end surface of the front leg 14, and a slot 142 for cutting windings is provided on the roller shaft holes on both sides of the front leg roller seat 141. The width of the slot 142 is smaller than the diameter of the roller shaft hole.

As shown in Figure 8-1, Figure 8-2, Figure 8-5 and Figure 8-6, a handle 9 is provided on the upper end of the uppermost hollow rod body 12 in the telescopic pull rod 11, and the handle 9 is connected with the uppermost hollow rod body 12. They are connected by a position and angle adjustment mechanism. The position and angle adjustment mechanism includes a lock push rod 91 arranged in the uppermost hollow rod body 12, and a push rod block 92 is arranged on the upper end of the lock push rod 91. The handle 9 is a hollow structure, and the lower end side of the handle 9 is provided with a first handle through groove 93 extending from the middle of the handle 9 to one of the end faces of the handle 9, and at least one handle through groove 93 is provided on the first handle through groove 93. Based on the positioning arc pit 931 of the positioning slot, the slot positioning arc pit 931 is preferably provided with 4, two of which are arranged on the first handle slot 93 at the lower end of the handle 9, and the third and four are provided. On this part of the first handle through groove 93 on the end face of the handle 9; the first handle through groove 93 communicates with the cavity 94 in the handle 9, and the outer wall is provided with a sleeve with an external thread on the lock push rod 91 914, the upper ends of the lock piece push rod 91 and the sleeve pipe 914 all extend into the cavity 94 from the first handle through groove 93, the push rod block 92 is arranged in the cavity 94, and in the cavity 94, on the sleeve pipe 914, There is a handle upper pressing part 911, which is provided with an internal thread hole, and the handle upper pressing part 911 is threadedly connected with the external thread of the casing 914 through an internal thread, and the lower end surface of the handle upper pressing part 911 is an arc On the surface, between the handle 9 and the uppermost hollow rod body 12, the sleeve 914 is provided with a handle lower bracket 912. The upper end surface of the handle lower bracket 912 is an arc surface. 91 is provided with a locking connection block 915, and the locking connection block 915 is fixedly connected with the lower end of the sleeve 914, and the upper end of the sleeve 914 runs through the handle lower bracket 912, the handle upper pressing piece 911, and is connected with the handle upper The inner threaded hole of the pressure piece 911 is threadedly connected, and a tightening nut 913 that is threadedly connected with the sleeve pipe 914 is provided between the sleeve pipe 914 and the locking connection block 915, and the tightening nut 913 presses the lower handle part 912 and the upper handle of the handle. 911 is compressed, the upper end of the handle lower support 912 is pressed against the lower end surface of the handle 9, the locking connection block 915 is installed in the upper opening of the uppermost hollow rod body 12, and the lower end of the lock push rod 91 extends to the uppermost The lower end of the hollow rod body 12 at the end is fixedly connected with the locking structure used for locking the telescopic rod in the prior art.

When the tightening nut 913 is loosened to a certain position, the handle lower holder 912 moves downward, and since the handle upper holder 911 is connected with the connecting sleeve 914 and does not move, the space between the handle lower holder 912 and the handle upper holder 911 increases. The ambassador lock push rod 91 can move in the first handle slot 93 and move to the next slot to locate the arc pit 931. The first handle slot 93 is a straight line, that is, the handle moves to one side. When the groove is positioned at the arc pit 931, if the tightening nut 913 is tightened, the first position change will be realized; if the tightening nut 913 is loosened again, the first handle through groove 93 can be placed on the lower handle part 912 and the handle. When moving between the pressing parts 911, the end surface of the handle groove is provided with a through-slot positioning arc pit 931, so when moving to this through-slot positioning arc pit 931, the respective positions or axial directions of the positioning arc pits 931 at the end of the through-slot are different. The mutual position or angle of the handle 9 and the sleeve pipe 914 is changed, and the tightening nut 913 is tightened at this position to fix it, so as to achieve the change of the angle of the handle and the stretching rod. The arc surface of the through slot positioning circular arc pit 931 matches the contact surface of the handle lower supporting part 912 and the handle upper pressing part 911, so as to ensure the effect of clamping. Because the handle lower support part 912 and the handle upper pressing part 911 can freely rotate on the sleeve pipe 914 before clamping, the handle 9 can change the angle except when it reaches this part of the first handle through groove 93 on the handle end face. It is also possible to rotate 360 degrees around the sleeve pipe 914 everywhere to change direction.

As shown in Figure 8-3, Figure 8-4, and Figure 8-6, the other end of the handle 9 is provided with a handle opening 95, and a handle extension 96 that can protrude from the handle opening 95 is provided in the cavity 94 , the upper end of the handle 9 is provided with a second handle channel 97 extending from the middle of the upper end of the handle 9 to the handle opening 95, and the rear end of the handle extension 96 is provided with a guide block 98 arranged in the second handle channel 97, The rear end surface of the handle extension 96 is located in the cavity 94 and is provided with an extension expansion nut 961. When the handle extension 96 is completely pulled out, the guide block 98 reaches the front end of the second handle slot 97 and is connected with the The groove walls of the second handle through groove 97 are in contact with each other so that the handle extension 96 cannot be pulled out further. Tighten screw 962. Tightening the screw 962 shortens the distance of the nut 961, so that the end of the handle extension 96 is deformed and pressed against the inner wall of the handle 9 so that the two are fixed.

When the guide block 98 is pushed, the guide block 98 moves along the second handle slot 97 , and the handle extension 96 protrudes from the handle 9 .

When the handle extension 96 needs to be pulled out, the tightening screw 962 is first loosened, the handle extension 96 is moved and extended by pushing the guide block 98, and the tightening screw 962 is tightened, the nut 961 and the handle extension 96 are gradually locked, The nut 961 is in contact with the handle extension 96 on an inclined plane, deformed, expanded, and pressed against the cavity wall of the cavity 94 of the handle shell 9 to achieve extension and fixation.

As shown in Figure 9-2, it is a schematic structural diagram of the first storage bag of the present invention. The upper end of the storage bag 2 has an opening, and the middle part of the left and right sides of the storage bag 2 has a first crease line 21. The crease line 21 is arranged along the height direction of the storage bag 2, and a second crease line 22 extending to the first crease line 21 is provided at the lower end corners of the sides on both sides. A triangle is formed between a crease line 21 and the lower end edge of the side, and a first hook 23 is arranged at the lower end of the back of the storage bag 2, and the first hook 23 is a peg with a T-shaped cross section. A hanging hole 24 (shown in FIG. 3-1 ) is provided on the front leg link 32 . The back side of the storage bag 2 is provided with a load-bearing rod 25, and a third hook 251 is arranged in the middle of the load-bearing rod 25. The third hook 251 has a T-shaped cross-section, and is hollow with the middle position of the telescopic pull rod 11. The rod body hanging hole 121 (shown in FIG. 11-1 ) on the rod body 12 is connected, and the rod body hanging hole 121 is an inverted gourd-shaped hole. The two ends of load-bearing bar 25 are provided with load-bearing bar hanging hole 252 (shown in Figure 11-2), are provided with the second hook 231 corresponding to the position of load-bearing bar hanging hole 252 on storage bag 2, described The cross-section of the second hook 231 is a T-shaped peg, which is connected to the load-bearing rod hanging hole 252, so that the load-bearing rod 25 can expand the storage bag 2;

As shown in Fig. 9-3, several load-bearing reinforcing blocks 26 are arranged horizontally and spaced apart in the middle, lower part and bottom surface of the back of the storage bag 2, and the spaced intervals avoid the folding position after being rotated 90 degrees. The middle part of the bottom surface of the storage bag 2 is provided with a third crease line 27 , and the third crease line 27 is parallel to the lower edge of the front or back of the storage bag 2 .

As shown in Figure 9-4, when folding, the third crease line 27 is folded inward, and the second crease line 22 and the first crease line 21 are also folded inward, so that the front of the storage bag 2 and the Fitted back.

As shown in Figure 9-5, after the storage bag 2 is rotated 90 degrees, it is rolled up to form a cylindrical shape. After the storage bag 2 is rolled up, there is a button that can just fix the storage bag 2, and the button is connected with the buckle rope, so that the rolled storage bag will not disperse, as shown in Figure 1-2, the rolled The combined storage bag 2 is wrapped on the luggage frame 1 after folding.

As shown in Figure 10-1 and Figure 10-3, it is a schematic structural diagram of the second storage bag of the present invention. The crease line 21, the first crease line 21 is set along the height direction of the storage bag 2, and the second crease line 22 extending to the first crease line 21 is provided at the lower end corners of the sides on both sides. A triangle is formed between the second crease line 22 and the first crease line 21 and the lower edge of the side, and a first hook 23 is arranged at the lower end of the back of the storage bag 2, and the first hook 23 has a cross-section of T A font-shaped nail, the front leg link 32 is provided with a hanging hole 24 (shown in Figure 3-1). The back side of the storage bag 2 is provided with a load-bearing rod 25, and a third hook 251 is arranged in the middle of the load-bearing rod 25. The third hook 251 has a T-shaped cross-section, and is hollow with the middle position of the telescopic pull rod 11. The rod body hanging hole 121 (shown in FIG. 11-1 ) on the rod body 12 is connected, and the rod body hanging hole 121 is an inverted gourd-shaped hole. The two ends of load-bearing bar 25 are provided with load-bearing bar hanging hole 252 (shown in Figure 11-2), are provided with the second hook 231 corresponding to the position of load-bearing bar hanging hole 252 on storage bag 2, described The cross-section of the second hook 231 is a T-shaped peg, which is connected to the load-bearing rod hanging hole 252 so that the load-bearing rod 25 can stretch the storage bag 2; as shown in Figure 10-2, the storage bag 2 Several load-bearing reinforcing blocks 26 are arranged at intervals in the middle and lower part of the back of the bag 2 and the bottom surface, and the intervals avoid the folding position. The middle part of the bottom surface of the storage bag 2 is provided with a third crease line 27, and the third crease line 27 is in line with the The lower edge of the front or back of the storage bag 2 is parallel.

Different from the first type of storage bag of the present invention shown in 9-2, the second type of storage bag is provided with a fourth crease line 28 in the middle of the front, back, and side sides of the storage bag 2, and the load-bearing is strengthened. The block 26 is vertically arranged in the back lower part and the bottom surface of the storage bag, and the load-bearing reinforcing block 26 arranged on the bottom surface of the storage bag 2 is respectively arranged at intervals on both sides of the bottom surface of the storage bag 2 with the third crease line 27 as a boundary. on the side.

As shown in Figures 10-2 and 10-3, the way the storage bag 2 is folded into a plane is the same as that of the first type of storage bag. Subsequent differences are shown in Figure 10-4. After the front and back of the storage bag 2 are bonded together, there is no need to rotate it 90 degrees, but it is folded downward along the fourth crease line 28, and then rolled into a cylindrical shape ( Shown in Figure 10-5), rotate load-bearing bar 25, make the lengthwise direction of load-bearing bar 25 be parallel to the lengthwise direction of the storage bag 2 that rolls into cylindrical shape, as shown in Figure 1-2, the storage bag that rolls up 2 wrapped on the folded luggage rack 1.

As shown in FIG. 9-1 , the load-bearing reinforcing block 26 is covered on the back and bottom surface of the storage bag 2 .

The load-bearing reinforcing block 26 can be rectangular or ring-shaped.

The present invention has the following advantages:

1. After folding, each component is compact and next to each other, and the storage bag wraps it outside, which greatly reduces the space after folding, making it take up a very small space after folding, so that it can be carried daily;

2. Under the above premise, the four-wheel structure makes the weight of the contents completely borne by the ground. Among the four wheels, the front two wheels are wide and the rear two wheels are narrow, which ensures the stability of the contents and avoids people's feet touching the pedals when pushing;

3. The inclined pull rod extends the point of application of force, and has a certain horizontal distance from the storage bag, so that the storage bag will not be turned over when pushed, and the arm can also be properly drooped to reduce fatigue;

4. The handle can be turned or extended appropriately. Users can choose the most suitable method and angle according to their own characteristics and storage conditions. The thinner sides of the lower handle 912 make the T-shaped grip more comfortable for the hand.

5. The front legs adopt universal casters, which is convenient to push and turn; when only the front leg rod structure is used, it can also be easily turned and pushed;

6. The grooving of the hub of the roller in the caster makes it possible to cut off the winding with a knife outside the hub when the roller is entangled by debris during use;

7. Reinforcing parts are intermittently arranged on the back and bottom of the storage bag, which will not affect the folding, and after the storage bag is opened, under the joint action of the hanging rod and the front support rod, the stress and stability of the storage bag will be ensured;

8. The design of the handle is convenient when it is lifted occasionally. The eccentric hole scull shape design enables the handle to be opened to the maximum and reduces the unit pressure load on the hand;

9. If you do not need to use the storage bag or use objects with solids larger than the storage bag, you can remove the storage bag and replace it with a bearing frame.

Claims (1)

1. one kind retinue bag luggage truck, including folding luggage vehicle frame (1) and the storage that is movably connected on luggage vehicle frame (1) Bag (2), it is characterised in that：The luggage vehicle frame (1) is provided with telescopic pull bar (11), and pull bar (11) is saved above by least three Hollow lever (12) form, the hollow lever (12) in bottom be externally provided with can along hollow lever (12) in axial sliding foreleg slide Cover (13), foreleg sliding sleeve (13) is respectively arranged on the left side and the right side foreleg (14), and the upper end of foreleg (14) is slided by rotating shaft and foreleg Cover (13) to be flexibly connected, foreleg (14) is rotated at left and right sides of foreleg sliding sleeve (13), the rotating shaft on the foreleg (14) Axis is parallel with side at left and right sides of foreleg sliding sleeve (13), and foreleg roller (15) is provided with the lower end of foreleg (14)；

The lower end of the hollow lever (12) of bottom is connected with preceding leg connecting rod connecting seat (3), the two of preceding leg connecting rod connecting seat (3) Side is provided with the foreleg connection bore (31) parallel with the shaft axis of foreleg (14), and foreleg connection bore (31) runs through preceding leg connecting rod The rear and front end of connecting seat (3), preceding leg connecting rod (32) is provided with left and right sides of the front end of preceding leg connecting rod connecting seat (3), before two The relative side of leg connecting rod (32) is provided with the foreleg pitman shaft (33) that the rear end face of leg connecting rod facing forward (32) extends, the foreleg Connecting rod (32) is connected bore (31) connection by foreleg pitman shaft (33) with foreleg, and leg connecting rod (32) can be around preceding leg connecting rod before realization Connecting seat (3) is rotated, and preceding leg connecting rod (32) is connected by foreleg pivot pin (34) with the front end face of foreleg (14)；

Leg mechanism after on the hollow lever (12) of bottom, it is described after leg mechanism include two back legs (5), back leg (5) it is upper End is connected by the back leg sliding sleeve (51) being enclosed on the hollow lever (12) of bottom with the hollow lever (12) of bottom, rear The rear end face of leg sliding sleeve (51) is provided with back leg free bearing (52), and back leg free bearing is respectively arranged on the left side and the right side in back leg free bearing (52) Hole (53), the back leg rotating shaft being connected with hole wall at left and right sides of back leg free bearing hole (53) is respectively equipped with back leg free bearing hole (53) (54), the upper end of back leg (5) is connected by back leg rotating shaft (54) with back leg free bearing hole (53) respectively, described two back leg free bearing holes (53) aperture tilts towards the left and right sides of hollow lever (12) so that after back leg (5) is opened, shape between two back legs (5) Into an inverted v-shaped；

The rear end face of the preceding leg connecting rod connecting seat (3) is provided with back leg pull bar axis hole (55), the axle of back leg pull bar axis hole (55) Line is parallel with the rear end face of hollow lever (12)；Set between the rear end face of the preceding leg connecting rod connecting seat (3) and two back legs (5) There is back leg pull bar (56), the front end of back leg pull bar (56) is connected in back leg pull bar axis hole (55), relative in two back legs (5) Back leg pull bar locating part (57) is respectively equipped with the middle part of the side of side, back leg pull bar locating part (57) is fixed on back leg (5), Back leg pull bar locating part (57) is provided with the locating part connection sheet (58) extended towards the front end face of back leg (5), is connected in locating part Piece (58) is provided with connection sheet axis hole (59), the rear end both sides of the back leg pull bar (56) be each passed through connection sheet axis hole (59) with Back leg (5) is flexibly connected；

The rear end of the back leg sliding sleeve (51) is provided with hand handle (6), and hand handle (6) is connected with drawing 62；In back leg sliding sleeve (51) Rear end is provided with lockable mechanism, and the lockable mechanism includes the cavity (7) for being arranged on back leg sliding sleeve (51) upper rear end, cavity (7) Lower end extend between two back leg free bearing holes (53), between two back leg free bearing holes (53), after back leg sliding sleeve (51) End face is provided with the first driving lever hole (71) connected with cavity (7)；Between described two back leg free bearing holes (53), back leg sliding sleeve (51) rear end lower surface is provided with the second driving lever hole (72) connected with cavity (7), is located at the first driving lever hole in cavity (7) (71) place is provided with the driving lever (73) being connected to by rotating shaft in cavity (7), and driving lever (73) is L-shaped, and the one of the driving lever (73) Back leg sliding sleeve (51) is stretched out outside from the first driving lever hole (71) in end, is formed clicking section (74), and the other end of driving lever (73) is from second Back leg sliding sleeve (51) is stretched out among driving lever hole (72) outside, is formed Access Division (75), is set on the rear end face of foreleg sliding sleeve (13) There is the hole clipping (131) of projection, during locking, Access Division (75) and hole clipping (131) clamping, now driving lever (73) is towards hollow lever (12) Rear end face tilt；In the cavity (7), the top of driving lever (73) be provided with sliding block (77), the lower surface rear side of sliding block (77) is provided with The cambered surface (771) of projection, the lower end of cambered surface (771) contact with the upper surface of driving lever (73), are set on front side of the upper end of sliding block (77) Have from first domatic (772) that the front bulkhead of cavity (7) successively decreases successively to the aft bulkhead height of cavity (7), in sliding block (77) Jacking block (76) is provided with upper end, cavity (7), spring (78), institute are provided between the rear end of jacking block (76) and the aft bulkhead of cavity (7) State and be provided with second domatic (761) on front side of the lower end of jacking block (76), second domatic (761) (772) domatic with first are bonded, in cavity (7) positioning hole (762) is provided with jacking block (76) position corresponding section on front bulkhead, the front end face of the jacking block (76) is provided with The locating dowel (763) that can be stretched into positioning hole (762), body of rod positioning is provided with the trailing flank of the hollow lever (12) of bottom Hole (764)；

The hand handle (6) is hollow cylinder, and handle hole (61) is respectively equipped with the left and right sides end face of hand handle (6), The left and right sides end face of hand handle (6), which is provided with, draws (62), draws in the upper end insertion handle hole (61) (62), in sliding block (77) Front end both sides be provided with the sliding block wing (773), the upper end of the sliding block wing (773) is provided with slider bush (774), slider bush (774) Axis it is parallel with the rear end face of hollow lever (12), two are drawn the lower end of (62) are inserted and is fixed on slider bush respectively (774) in；

Handle (9) is provided with the upper end of the hollow lever (12) of the top, between handle (9) and the hollow lever (12) of the top Connected by position with angle adjusting mechanism, the position and angle adjusting mechanism include being arranged on the top hollow lever (12) Interior latch fitting push rod (91), push rod block (92) being provided with the upper end of latch fitting push rod (91), the handle (9) is hollow-core construction, The lower end side of handle (9) is provided with and first handle of the handle (9) wherein on the end face of one end is extended in the middle part of handle (9) Groove (93), more than one groove setting circle arc crater (931) for being used to position is provided with first handle groove (93)；It is first-hand Handle groove (93) connects with the cavity (94) in handle (9), is provided with latch fitting push rod (91) on outer wall and is provided with externally threaded set Manage (914), the upper end of latch fitting push rod (91) and sleeve pipe (914) is stretched into cavity (94) from first handle groove (93), push rod Block (92) is arranged in cavity (94), in the cavity (94), is provided with casting die (911) on handle on sleeve pipe (914), casting die on handle (911) internal thread hole is provided with, casting die (911) is threadedly coupled by internal thread with the external screw thread of sleeve pipe (914) on handle, described The lower surface of casting die (911) is arc surface on handle, between the hollow lever (12) of handle (9) and the top, sleeve pipe (914) Provided with supporting piece (912) under handle, the upper surface of supporting piece (912) is arc surface under handle, in the lower end of sleeve pipe (914), latch fitting Push rod (91) is provided with locking contiguous block (915), and the locking contiguous block (915) is fixedly connected with the lower end of sleeve pipe (914), institute Supporting piece (912) under handle, casting die (911) on handle are run through in the upper end for stating sleeve pipe (914), and interior with casting die on handle (911) Screwed hole is threadedly coupled, and is provided between sleeve pipe (914) and locking contiguous block (915) and is screwed with what sleeve pipe (914) was threadedly coupled Nut (913), tightening nut (913) compress casting die (911) on supporting piece under handle (912), handle, supporting piece under the handle (912) upper end is withstood on the lower surface of handle (9), and locking contiguous block (915) is arranged on the hollow lever (12) of the top In upper end open；The other end end face of the handle (9) is provided with handle aperture (95), and being provided with cavity (94) can be from handle aperture (95) the handle extension (96) stretched out in, it is provided with the upper end of handle (9) from handle (9) upper center and extends to handle aperture (95) the second handle groove (97) at place, the rear end of handle extension (96) are arranged on leading in second handle groove (97) To block (98), extension expanding nut (961) is provided with the rear end face of the handle extension (96), in cavity (94), The front end face of handle extension (96) is provided with what is run through handle extension (96) and be threadedly coupled with extension expanding nut (961) Prolonging handle screwing screw (962)；

It is provided between two forelegs (14) and undertakes frame (8), undertaken frame (8) and undertake frame piece (81) by two and form, two undertakes frame One end of piece (81) is hinged, and lateral surface of the other end respectively with two forelegs (14) is flexibly connected by rotating shaft；

The upper end of the bag (2) has opening, has the first crease line in the middle part of the left and right sides side of bag (2) (21), short transverse of the first crease line (21) along bag (2) is set, and is provided with and is extended at the lower end end angle of both sides side The second crease line (22) on first crease line (21), the second crease line (22) and the first crease line (21) and the lower end of side It is triangle between edge, the first hanging part (23) is provided with the back side lower end of bag (2), first hanging part (23) is Section is T-shaped clothes-hook, and the preceding leg connecting rod (32) is provided with hanging hole (24), and the back side of bag (2) is provided with bearing bar (25) the 3rd hanging part (251), is set at the middle part of bearing bar (25), and the section of the 3rd hanging part (251) is T-shaped, in Between the hollow lever (12) of position be provided with body of rod hanging hole (121), the body of rod hanging hole (121) is inverted pear-shaped hole, load-bearing The both ends of bar (25) are provided with bearing bar hanging hole (252), are provided with bag (2) relative with bearing bar hanging hole (252) position The second hanging part (231) answered, the section of second hanging part (231) is T-shaped clothes-hook, at the back side of bag (2) Horizontal and spaced several load-bearing bosses (26), the bottom surface middle part of bag (2) are provided with middle and lower part and bottom surface Provided with the 3rd crease line (27), the 3rd crease line (27) is parallel with the lower edge at before bag (2) or the back side；

Or the upper end of the bag (2) has opening, has the first crease line in the middle part of the left and right sides side of bag (2) (21), short transverse of the first crease line (21) along bag (2) is set, and is provided with and is extended at the lower end end angle of both sides side The second crease line (22) on first crease line (21), the second crease line (22) and the first crease line (21) and the lower end of side It is triangle between edge, the first hanging part (23) is provided with the back side lower end of bag (2), first hanging part (23) is Section is T-shaped clothes-hook, and the preceding leg connecting rod (32) is provided with hanging hole (24), and the back side of bag (2) is provided with bearing bar (25) the 3rd hanging part (251), is set at the middle part of bearing bar (25), and the section of the 3rd hanging part (251) is T-shaped, in Between the hollow lever (12) of position be provided with body of rod hanging hole (121), the body of rod hanging hole (121) is inverted pear-shaped hole, load-bearing The both ends of bar (25) are provided with bearing bar hanging hole (252), are provided with bag (2) relative with bearing bar hanging hole (252) position The second hanging part (231) answered, the section of second hanging part (231) is T-shaped clothes-hook, at the back side of bag (2) Spaced several load-bearing bosses (26) are provided with middle and lower part and bottom surface, the 3rd is provided with the middle part of the bottom surface of bag (2) Crease line (27), the 3rd crease line (27) is parallel with the lower edge at before bag (2) or the back side, in bag (2) Above, the back side, the middle part of both sides side are provided with one week the 4th crease line (28), and load-bearing boss (26) is vertically provided at bag Lower backside and bottom surface in, be arranged on the load-bearing boss (26) on the bottom surface of bag (2) with the 3rd crease line (27) It is respectively separated and is arranged on the bottom surface both sides of bag (2) for boundary.