Folding rubber plate trolley

Abstract

The invention discloses a folding rubber plate trolley which comprises a carrying plate, a U-shaped pushing hand pipe, a rotary connecting mechanism and a bottom frame pipe. The two ends of the U-shaped pushing hand pipe are connected to the top of the carrying plate in a penetrating mode. The rotary connecting mechanism is arranged between the two ends of the U-shaped pushing hand pipe, the rotary connecting mechanism is detachably connected to the top of the carrying plate, and the rotary connecting mechanism is used for enabling the U-shaped pushing hand pipe to rotate with the top of the carrying plate as a rotary fulcrum; the multiple bottom frame pipes are symmetrically and rotationally connected to the bottom of the carrying plate along the center, rotating locking pieces are arranged between the middles of the multiple bottom frame pipes, and moving pieces are arranged at the ends of the multiple bottom frame pipes. The U-shaped pushing handle pipe is rotationally connected with the carrying plate through the rotary connecting mechanism, and meanwhile, the moving part can be rotationally folded at the bottom end of the carrying plate through cooperation of the rotary locking part and the bottom frame pipe, so that more occupied space is reduced when the whole vehicle body is stored.

Description

Technical Field

[0001] This invention relates to the field of assisted vehicles, and in particular to a folding rubber-sheet handcart. Background Technology

[0002] Currently, handcarts are commonly used in places like factories, train stations, hospitals, or department stores when heavy items or luggage need to be moved. However, existing plastic-board handcarts used for transporting luggage typically have casters and handles fixed to a plastic platform, making them non-foldable and taking up a large amount of space, thus causing inconvenience in storage. In view of this, this solution proposes a folding plastic-board handcart to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a folding plastic sheet handcart to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a folding rubber sheet handcart, comprising:

[0005] Cargo board;

[0006] U-shaped push handle tube, the two ends of which are inserted and connected to the top of the carrying plate;

[0007] A rotating connection mechanism is provided between the two ends of the U-shaped pusher tube. The rotating connection mechanism is detachably connected to the top of the carrying plate. The rotating connection mechanism is used for the U-shaped pusher tube to rotate along the top of the carrying plate as the rotation fulcrum.

[0008] The base frame tubes are symmetrically and rotatably connected to the bottom of the carrying plate around the center. A rotation locking member is provided between the middle parts of the base frame tubes. The rotation locking member is used to control the rotation of the base frame tubes. Each end of the base frame tubes is provided with a movable member.

[0009] Preferably, the top of one end of the carrier plate is provided with multiple mounting holes for detachable connection of the rotating connection mechanism, and the top of the carrier plate is provided with a U-shaped groove for rotating and storing the U-shaped push tube.

[0010] Preferably, the rotating connection mechanism includes:

[0011] A push handle fixing seat, wherein multiple push handle fixing seats are respectively inserted from the bottom end of the carrying plate into the end of the U-shaped groove, and the multiple push handle fixing seats and the carrying plate are connected by fixing screws through mounting holes;

[0012] A locking rod, the two ends of which are respectively inserted and connected to the bottom of multiple pusher fixing seats, and the two ends of the locking rod are rotatably inserted and connected to the two ends of the U-shaped pusher tube;

[0013] A locking button is fixedly connected to the middle of the locking rod and is also inserted into the top of the loading plate.

[0014] Preferably, the rotating connection mechanism further includes:

[0015] A double-coil tension spring, one end of which is fitted with a fulcrum screw, the threaded end of which is threadedly connected to the top of the pusher fixing seat, and the other end of which is fitted onto the insertion end of the locking rod and the pusher fixing seat.

[0016] A support plate is sleeved on the middle of the pusher fixing seat, and the support plate is used to support the rotation of the end of the U-shaped pusher tube.

[0017] Preferably, the rotation locking element includes:

[0018] A caster locking mechanism tube, wherein multiple caster locking mechanism tubes are disposed between multiple base frame tubes, and locking pins are inserted and connected to the inner walls of both ends of the multiple caster locking mechanism tubes, and the ends of the multiple locking pins away from the caster locking mechanism tubes are respectively inserted and connected to the multiple base frame tubes;

[0019] The unlocking support tubes are respectively sleeved on both ends of the multiple caster locking mechanism tubes, and the multiple unlocking support tubes are sleeved on the outer wall of the base frame tube.

[0020] Preferably, a top support spring is provided on one side of the multiple locking pins and inside the same caster locking mechanism tube. Both ends of the top support spring are fixedly connected to unlocking tubes. The two ends of the multiple unlocking tubes are respectively inserted and connected to the multiple caster locking mechanism tubes. The multiple unlocking tubes are used for multiple top support springs connected in series.

[0021] Preferably, a fixing tube is fixedly sleeved on the outer wall of the base frame tube, and the fixing tube is located on the outer wall of the same base frame tube and is disposed between multiple unlocking support tubes. Caster return springs are provided between the two ends of the fixing tube and the multiple unlocking support tubes.

[0022] Preferably, the moving part includes:

[0023] Caster mounting brackets, wherein multiple caster mounting brackets are respectively sleeved on the ends of multiple base frame tubes;

[0024] Movable casters, with multiple movable casters respectively disposed at the bottom end of multiple caster mounting bases.

[0025] Preferably, the end of the base frame tube is fitted with a plurality of caster fixing clips, and the plurality of caster fixing clips are respectively disposed on both sides of a plurality of caster fixing seats.

[0026] The technical effects and advantages of this invention are as follows:

[0027] The U-shaped push handle tube of this invention is rotatably connected to the cargo plate through a rotating connection mechanism. When the trolley needs to be stored, the U-shaped push handle tube can be rotated and folded to reduce the space occupied at the top of the cargo plate. At the same time, the moving part of the solution can be rotated and folded at the bottom of the cargo plate through the cooperation of the rotating locking part and the base frame tube. With this structural cooperation, both the moving part and the U-shaped push handle tube can be brought close to the cargo plate and folded, so that the entire trolley body occupies less space when stored. Attached Figure Description

[0028] Figure 1 This is a schematic diagram showing the overall structure of the present invention.

[0029] Figure 2 This is a top view showing the overall structure of the invention.

[0030] Figure 3 This is a schematic diagram of the structure of the carrier plate of the present invention.

[0031] Figure 4 This is a schematic diagram showing the connection between the U-shaped push tube and the rotating connection mechanism of the present invention.

[0032] Figure 5 This is a schematic diagram showing the connection of the bottom tube frame, the rotating locking component, and the moving component of the present invention.

[0033] Figure 6 This is a cross-sectional view of the connection between the rotating locking component and the base frame tube of the present invention.

[0034] Figure 7 This is a schematic diagram of the structure of the unlocking support tube of the present invention.

[0035] In the diagram: 1. Loading plate; 11. Mounting hole; 12. U-shaped groove; 2. U-shaped push handle tube; 21. Push handle fixing seat; 22. Locking rod; 23. Locking button; 24. Double-coil tension spring; 25. Pivot screw; 26. Fixing screw; 27. Support plate; 3. Base frame tube; 31. Caster locking mechanism tube; 32. Locking pin; 321. Top support spring; 322. Unlocking tube; 33. Unlocking support tube; 331. Caster return spring; 34. Fixing tube; 35. Caster fixing seat; 36. Movable caster; 37. Caster fixing clip. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] refer to Figure 1 - Figure 7 As shown;

[0038] This invention provides a folding plastic sheet trolley, including a carrying plate 1, a U-shaped push handle tube 2, a rotating connection mechanism, and a base frame tube 3. The two ends of the U-shaped push handle tube 2 are inserted and connected to the top of the carrying plate 1. A plurality of mounting holes 11 are provided on the top of one end of the carrying plate 1. The mounting holes 11 are used for detachable connection of the rotating connection mechanism. A U-shaped groove 12 is provided on the top of the carrying plate 1. The U-shaped groove 12 is used for rotating and storing the U-shaped push handle tube 2.

[0039] It should be noted that the surface of the carrying plate 1 is provided with an anti-slip pattern, the front is designed as a semi-circle, the rear end is provided with eight mounting holes 11, and the top surface of the carrying plate 1 is provided with a U-shaped groove 12 for hiding the U-shaped push tube 2.

[0040] The rotating connection mechanism is located between the two ends of the U-shaped push tube 2. The rotating connection mechanism is detachably connected to the top of the carrying plate 1. The rotating connection mechanism is used for the U-shaped push tube 2 to rotate along the top of the carrying plate 1 as the rotation fulcrum.

[0041] Specifically, the rotating connection mechanism includes:

[0042] A pusher fixing seat 21 is provided. Multiple pusher fixing seats 21 are inserted from the bottom end of the carrying plate 1 into the end of the U-shaped groove 12. The multiple pusher fixing seats 21 and the carrying plate 1 are connected by fixing screws 26 through mounting holes 11. The pusher fixing seats 21 have thread holes at the four corners for the insertion of fixing screws 26. After the fixing screws 26 pass through the thread holes, they are threadedly connected to the carrying plate 1. The side wall of the pusher fixing seat 21 has an adjustment slide.

[0043] The locking rod 22 has two ends that are respectively inserted and connected to the bottom of multiple pusher fixing seats 21, and the two ends of the locking rod 22 are rotatably inserted and connected to the two ends of the U-shaped pusher tube 2.

[0044] Locking button 23 is fixedly connected to the middle of locking rod 22, and locking button 23 is inserted through the top of the carrier plate 1;

[0045] A double-coil tension spring 24 is provided, with a fulcrum screw 25 fitted onto one end of the double-coil tension spring 24. A fulcrum hole is provided on both sides of the bottom of the U-shaped pusher tube 2. The fulcrum hole is used for the threaded connection of the fulcrum screw 25. The threaded end of the fulcrum screw 25 is threadedly connected to the top of the pusher fixing seat 21. The other end of the double-coil tension spring 24 is fitted onto the insertion end of the locking rod 22 and the pusher fixing seat 21.

[0046] Support plate 27 is sleeved on the middle part of pusher fixing seat 21. Support plate 27 is used to support the rotation of the end of U-shaped pusher tube 2.

[0047] It should be noted that the fulcrum holes at both ends of the U-shaped pusher tube 2 pass through the fulcrum screws 25 into the adjusting slide of the pusher fixing seat 21, and pass through one of the coils of the double-coil tension spring 24 to complete the rotation fulcrum. The other coil of the double-coil tension spring 24 passes through the locking rod 22, which is inserted into the adjusting slide of the pusher fixing seat 21. When the locking button 23 is pressed down, the locking rod 22 moves down away from the lower end face of the U-shaped pusher tube 2, and the U-shaped pusher tube 2 is pushed forward by hand to retract. To open the U-shaped pusher tube 2, simply flip the U-shaped pusher tube 2 so that it is perpendicular to the plastic plate. Due to the abutment plate 27 set at the pusher fixing seat 21, the forward movement of the U-shaped pusher tube 2 is blocked. Then, the double-coil tension spring 24 pulls up the locking rod 22, thereby keeping the U-shaped pusher tube 2 perpendicular to the carrying plate 1.

[0048] Multiple base frame tubes 3 are symmetrically rotated and connected to the bottom of the carrying plate 1 around the center. The bottom of the carrying plate 1 is provided with multiple reinforcing strips and locking positions. The locking positions are used for the installation and connection of the base frame tubes 3. A rotation locking component is provided between the middle parts of the multiple base frame tubes 3. The rotation locking component is used for the rotation control of the multiple base frame tubes 3. Movable components are provided at the ends of the multiple base frame tubes 3.

[0049] Specifically, the rotation locking element includes:

[0050] Caster locking mechanism tube 31, multiple caster locking mechanism tubes 31 are arranged between multiple base frame tubes 3, and locking pins 32 are inserted and connected to the inner walls of both ends of the multiple caster locking mechanism tubes 31 respectively. The ends of the multiple locking pins 32 away from the caster locking mechanism tubes 31 are respectively inserted and connected to the multiple base frame tubes 3.

[0051] Unlocking support tubes 33 are respectively sleeved on both ends of multiple caster locking mechanism tubes 31, and multiple unlocking support tubes 33 are sleeved on the outer wall of the base frame tube 3.

[0052] Furthermore, a top support spring 321 is provided on one side of the multiple locking pins 32 and inside the same caster locking mechanism tube 31. Both ends of the top support spring 321 are fixedly connected to unlocking tubes 322. The two ends of the multiple unlocking tubes 322 are respectively inserted and connected to the multiple caster locking mechanism tubes 31. The multiple unlocking tubes 322 are used for the multiple top support springs 321 in series. A fixing tube 34 is fixedly sleeved on the outer wall of the base tube 3. The fixing tube 34 is located on the outer wall of the same base tube 3 and is arranged between multiple unlocking support tubes 33. A caster return spring 331 is provided between the two ends of the fixing tube 34 and the multiple unlocking support tubes 33.

[0053] Specifically, the moving parts include:

[0054] Caster mounting base 35, multiple caster mounting bases 35 are respectively sleeved on the ends of multiple base frame tubes 3;

[0055] The movable casters 36 are respectively set at the bottom of the multiple caster mounting bases 35. There are two types of movable casters 36, including but not limited to swivel casters and fixed casters. The swivel casters are used to adjust the direction of movement.

[0056] Multiple caster fixing clips 37 are fitted onto the end of the base tube 3, and the multiple caster fixing clips 37 are respectively located on both sides of multiple caster fixing seats 35.

[0057] It should be noted that the movable caster 36 consists of three parts: wheels, brackets and base plate. The base plate has four symmetrical connecting holes. The base plate is inserted into the middle of the caster fixing seat 35, and the base plate is fixed at the caster fixing seat 35 by the insertion of bolts.

[0058] The base tube 3 has a locking hole in the middle. The caster return spring 331 is a torsion spring structure, which helps the base tube 3 to return to its original position after rotation. In actual operation, the two unlocking tubes 322 are gripped firmly in the middle. At this time, the unlocking tubes 322 move closer to each other, which in turn drives the connected top support spring 321 to move closer to each other. Under the action of the top support spring 321, the locking pin 32 moves towards the center of the caster locking mechanism tube 31. At this time, the locking pin 32 moves out of the locking hole. At this time, the rotation lock of the base tube 3 is released. The base tube 3 can then be rotated to rotate and store the movable caster 36 and the caster fixing seat 35. During the rotation of the base tube 3, the fixing tube 34 will rotate synchronously. The rotation of the fixing tube 34 will twist the caster return spring 331. After the locking pin 32 is inserted into the locking hole of the rest of the base tube 3, the rotation lock and storage are completed.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A folding rubber sheet handcart, characterized in that, include: Carrier plate (1); U-shaped push tube (2), the two ends of which are inserted and connected to the top of the carrier plate (1); A rotating connection mechanism is provided between the two ends of the U-shaped push tube (2). The rotating connection mechanism is detachably connected to the top of the carrying plate (1). The rotating connection mechanism is used for the U-shaped push tube (2) to rotate along the top of the carrying plate (1) as the rotation fulcrum. The base frame tubes (3) are symmetrically connected to the bottom of the loading plate (1) along the center. A rotation locking member is provided between the middle parts of the base frame tubes (3). The rotation locking member is used for the rotation control of the base frame tubes (3). A moving member is provided at the end of each of the base frame tubes (3).

2. A folding rubber sheet handcart according to claim 1, characterized in that, The top of one end of the loading plate (1) is provided with multiple mounting holes (11), which are used for the detachable connection of the rotating connection mechanism. The top of the loading plate (1) is provided with a U-shaped groove (12), which is used for the rotating storage of the U-shaped push tube (2).

3. A folding rubber sheet handcart according to claim 2, characterized in that, The rotary connection mechanism includes: Push handle fixing seat (21), multiple push handle fixing seats (21) are respectively inserted from the bottom end of the carrying plate (1) into the end of the U-shaped groove (12), and multiple push handle fixing seats (21) and carrying plate (1) are connected by fixing screws (26) through mounting holes (11). Locking rod (22), the two ends of the locking rod (22) are respectively inserted and connected to the bottom of multiple pusher fixing seats (21), and the two ends of the locking rod (22) are rotatably inserted and connected to the two ends of the U-shaped pusher tube (2); Locking button (23) is fixedly connected to the middle of locking rod (22) and is inserted through the top of the carrier plate (1).

4. A folding rubber sheet handcart according to claim 3, characterized in that, The rotary connection mechanism further includes: A double-coil tension spring (24) is provided, with a fulcrum screw (25) fitted at one end of the double-coil tension spring (24). The threaded end of the fulcrum screw (25) is threadedly connected to the top of the pusher fixing seat (21). The other end of the double-coil tension spring (24) is fitted at the insertion end of the locking rod (22) and the pusher fixing seat (21). A support plate (27) is fitted onto the middle part of the pusher fixing seat (21). The support plate (27) is used to support the rotation of the end of the U-shaped pusher tube (2).

5. A folding rubber sheet handcart according to claim 1, characterized in that, The rotation locking element includes: Caster locking mechanism tube (31), multiple caster locking mechanism tubes (31) are arranged between multiple base frame tubes (3), and locking pins (32) are inserted and connected to the inner walls of both ends of multiple caster locking mechanism tubes (31). The ends of multiple locking pins (32) away from the caster locking mechanism tubes (31) are respectively inserted and connected to multiple base frame tubes (3). Unlocking support tubes (33), multiple unlocking support tubes (33) are respectively sleeved on both ends of multiple caster locking mechanism tubes (31), and multiple unlocking support tubes (33) are sleeved on the outer wall of the base frame tube (3).

6. A folding rubber sheet handcart according to claim 5, characterized in that, A top support spring (321) is provided on the opposite side of the multiple locking pins (32) and inside the same caster locking mechanism tube (31). Both ends of the top support spring (321) are fixedly connected to unlocking tubes (322). Both ends of the multiple unlocking tubes (322) are respectively inserted and connected to the multiple caster locking mechanism tubes (31). The multiple unlocking tubes (322) are used for multiple top support springs (321) in series.

7. A folding rubber sheet handcart according to claim 5, characterized in that, The outer wall of the base frame tube (3) is fixedly fitted with a fixing tube (34). The fixing tube (34) is located on the outer wall of the same base frame tube (3) and is arranged between multiple unlocking support tubes (33). Caster return springs (331) are arranged between the two ends of the fixing tube (34) and the multiple unlocking support tubes (33).

8. A folding rubber sheet handcart according to claim 1, characterized in that, The movable component includes: Caster fixing seat (35), and multiple caster fixing seats (35) are respectively sleeved on the ends of multiple base frame tubes (3); Movable casters (36), a plurality of said movable casters (36) are respectively disposed at the bottom end of a plurality of caster mounting bases (35).

9. A folding rubber sheet handcart according to claim 8, characterized in that, The end of the base tube (3) is fitted with a plurality of caster fixing clips (37), and the plurality of caster fixing clips (37) are respectively disposed on both sides of a plurality of caster fixing seats (35).

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