A structurally stable collapsible trolley

Abstract

The utility model discloses a detachable handcart with stable structure, including two bearing plates, two bearing plate bottom walls all are fixedly installed with two universal self -locking wheel, one of bearing plate bottom wall is fixedly installed with the prism pole through the connecting frame, the prism pole outer wall sliding installation has two removal sliding blocks, the prism pole outer wall is installed with two tight springs, and two tight spring both ends are respectively with the elastic connection of connecting frame inner wall and the sliding block outer wall of same side. The utility model discloses a prism pole, slider, tight spring and bolt etc. component are set up, realized the quick detachable connection of two bearing plates, and the cooperation structure of prism pole and slider can effectively limit the relative transverse displacement of two bearing plates, improves the stability of overall structure, and the elastic force effect of tight spring ensures that the bolt and the insertion hole are closely combined, avoids the loosening or shaking in the use process, and simultaneously can complete the assembly and split operation without the tool, improves the use convenience.

Description

Technical Field

[0001] This utility model relates to the field of transportation vehicle technology, and in particular to a structurally stable detachable handcart. Background Technology

[0002] Handcarts are transport vehicles that are pushed and pulled by human power. They are characterized by low cost, simple maintenance, and convenient operation, and are widely used in scenarios where lighter items are transported over short distances.

[0003] As a common short-distance transportation tool, the convenience and practicality of handcarts have been widely recognized. However, existing handcarts are fixed in one piece and cannot be disassembled. When not in use, they occupy a large storage space and are not convenient for passing through narrow spaces (such as elevators and corridors) or for long-distance transportation, which is not practical enough. Therefore, it is necessary to redesign a structurally stable detachable handcart to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a structurally stable detachable handcart.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A structurally stable detachable handcart includes two support plates. Two omnidirectional self-locking wheels are fixedly installed on the bottom walls of both support plates. A prismatic rod is fixedly installed on the bottom wall of one of the support plates via a connecting frame. Two movable sliders are slidably installed on the outer wall of the prismatic rod. Two tension springs are installed on the outer wall of the prismatic rod, and their ends are elastically connected to the inner wall of the connecting frame and the outer wall of the slider on the same side, respectively. Connecting plates are fixedly connected to the inner walls of both sliders via a connecting mechanism. Two pins are fixedly installed on the inner walls of both connecting plates. Each side has a hole for installing two of the aforementioned pins. Handles are fixedly installed on the outer walls of both connecting plates. A rotating shaft is rotatably installed on the upper surface of another bearing plate via a support frame. A handrail is fixedly installed on the outer wall of the rotating shaft via an installation mechanism. A fixing block is fixedly installed on the outer wall of the rotating shaft. A fixing pin is slidably installed through the upper surface of another bearing plate via a support plate. Two fixing holes that mate with the fixing pin are opened on the outer wall of the fixing block. A lever is fixedly installed on the outer wall of the fixing pin. The bottom wall of the lever is connected to the upper surface of the support plate via a fixing mechanism.

[0007] Preferably, the connecting mechanism includes two connecting rods fixedly installed on the inner wall of the slider, and the ends of the two connecting rods are fixedly connected to the inner wall of the connecting plate.

[0008] Preferably, the mounting mechanism includes two mounting sleeves fixedly mounted on the outer wall of the rotating shaft, and the handrail is fixedly mounted on the outer wall of the two mounting sleeves.

[0009] Preferably, the fixing mechanism includes a fixing spring installed on the outer wall of the fixing pin, and the two ends of the fixing spring are elastically connected to the upper surface of the support plate and the bottom wall of the lever, respectively.

[0010] Preferably, two storage slots are provided on the upper surface of both bearing plates, a connecting rod is fixedly installed inside each storage slot, and a baffle is rotatably installed on the outer wall of each connecting rod.

[0011] Preferably, two mounting plates are fixedly installed on the upper surface of each of the two bearing plates, and bolts are rotatably installed through the outer wall of each mounting plate, and threaded holes that mate with the bolts are opened on the outer wall of each baffle.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up components such as prismatic rods, sliders, tension springs, and pins, a quick and detachable connection between the two support plates is achieved. The cooperation structure of the prismatic rods and sliders can effectively limit the relative lateral displacement of the two support plates, improving the stability of the overall structure. The elastic force of the tension spring ensures that the pin and the socket fit tightly, preventing loosening or shaking during use. At the same time, assembly and disassembly can be completed without tools, improving the ease of use.

[0014] 2. By setting up components such as baffles, connecting rods, mounting plates and bolts, a foldable enclosure structure is formed. The baffles can effectively prevent goods from slipping off the edge of the bearing plate during transportation, thus improving transportation safety. When not in use, the baffles can be stored in the storage slot of the bearing plate without taking up extra space, thus combining practicality and storage convenience. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a structurally stable detachable handcart proposed in this utility model;

[0016] Figure 2 This is a top view schematic diagram of a structurally stable detachable handcart proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the bottom structure of a structurally stable detachable handcart proposed in this utility model.

[0018] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 2Enlarged schematic diagram of the structure at point B in the diagram;

[0020] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point C.

[0021] In the diagram: 1. Bearing plate, 2. Universal self-locking wheel, 3. Connecting frame, 4. Prism rod, 5. Slider, 6. Tension spring, 7. Connecting rod, 8. Connecting plate, 9. Pin, 10. Handle, 11. Support frame, 12. Rotating shaft, 13. Mounting sleeve, 14. Handrail, 15. Fixing block, 16. Support plate, 17. Fixing pin, 18. Toggle block, 19. Fixing spring, 20. Connecting rod, 21. Baffle, 22. Mounting plate, 23. Bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-6 A structurally stable detachable handcart includes two support plates 1. Two universal self-locking wheels 2 are fixedly installed on the bottom walls of both support plates 1. A prismatic rod 4 is fixedly installed on the bottom wall of one support plate 1 via a connecting frame 3. Two movable sliders 5 are slidably installed on the outer wall of the prismatic rod 4. Two tension springs 6 are installed on the outer wall of the prismatic rod 4, and their ends are elastically connected to the inner wall of the connecting frame 3 and the outer wall of the slider 5 on the same side, respectively. Connecting plates 8 are fixedly connected to the inner walls of both sliders 5 via a connecting mechanism. Two pins 9 are fixedly installed on the inner walls of both connecting plates 8. Useful... The two connecting plates 8 are fixedly installed with handles 10 in the holes for installing two pins 9. The upper end of the other bearing plate 1 is rotatably installed with a rotating shaft 12 through the support frame 11. The outer wall of the rotating shaft 12 is fixedly installed with a handrail 14 through the installation mechanism. The outer wall of the rotating shaft 12 is fixedly installed with a fixing block 15. The upper end of the other bearing plate 1 is slidably installed with a fixing pin 17 through the support plate 16. The outer wall of the fixing block 15 has two fixing holes that cooperate with the fixing pin 17. The outer wall of the fixing pin 17 is fixedly installed with a lever 18. The bottom wall of the lever 18 is connected to the upper end of the support plate 16 through the fixing mechanism.

[0024] The connecting mechanism includes two connecting rods 7 fixedly installed on the inner wall of the slider 5, and the ends of the two connecting rods 7 are fixedly connected to the inner wall of the connecting plate 8.

[0025] Furthermore, the two connecting rods 7 enhance the stability of the connection between the slider 5 and the connecting plate 8, preventing the connecting plate 8 from shaking or falling off due to excessive force when the trolley is pulled or pushed, and ensuring that the pin 9 can accurately fit with the socket.

[0026] The mounting mechanism includes two mounting sleeves 13 fixedly mounted on the outer wall of the rotating shaft 12, and the handrail 14 fixedly mounted on the outer wall of the two mounting sleeves 13.

[0027] Furthermore, the two mounting sleeves 13 are symmetrically distributed on the outer wall of the rotating shaft 12, which can evenly transmit the force on the handrail 14 to the rotating shaft 12, reduce the stress on a single connection point, and extend the service life of the handrail 14 and the rotating shaft 12.

[0028] The fixing mechanism includes a fixing spring 19 installed on the outer wall of the fixing pin 17. The two ends of the fixing spring 19 are elastically connected to the upper end face of the support plate 16 and the bottom wall of the lever block 18, respectively.

[0029] Furthermore, the elastic force of the fixed spring 19 can always push the lever 18 upward, so that the fixed pin 17 is tightly locked into the fixing hole of the fixed block 15, preventing the fixed pin 17 from accidentally slipping off during use and causing the angle of the handle 14 to change, thus improving the safety of the handcart during use.

[0030] Two storage slots are provided on the upper surface of the two support plates 1. A connecting rod 20 is fixedly installed inside each storage slot, and a baffle 21 is rotatably installed on the outer wall of each connecting rod 20.

[0031] Furthermore, the design of the storage slot provides storage space for the baffle 21. When the baffle 21 is not needed, it can be rotated around the connecting rod 20 into the storage slot, reducing the space occupied by the trolley. The rotating installation method makes the unfolding and storage of the baffle 21 very convenient.

[0032] Two mounting plates 22 are fixedly installed on the upper surface of the two bearing plates 1. Each mounting plate 22 has a bolt 23 rotatably installed on its outer wall. Each baffle 21 has a threaded hole on its outer wall that mates with the bolt 23.

[0033] Furthermore, by engaging the bolts 23 with the threaded holes, the unfolded baffle 21 can be firmly fixed to the mounting plate 22, so that the baffle 21 can effectively prevent items on the support plate 1 from falling off.

[0034] When using this utility model, the handles 10 on both sides can be pulled first to move the connecting plate 8 on the same side. When the connecting plate 8 moves, the slider 5 can slide on the outer wall of the prism rod 4 and compress the tension spring 6 through the cooperation of the two connecting rods 7. Then the ends of the two bearing plates 1 can be aligned. Then the handles 10 are released. At this time, the compressed tension spring 6 will generate a rebound force, pushing the slider 5 to slide outward along the prism rod 4. Then the connecting rod 7 drives the connecting plate 8 to move synchronously, so that the two pins 9 on the inner side of the connecting plate 8 can be accurately inserted into the corresponding holes on the other bearing plate 1, completing the quick splicing and fixing of the two bearing plates 1. After splicing, the cooperation of the prism rod 4 and the slider 5 restricts the relative lateral displacement of the two bearing plates 1. The continuous elastic force of the tension spring 6 ensures that the pins 9 are tightly fitted with the holes, avoiding loosening or shaking during use.

[0035] Next, move the lever 18 upwards. The lever 18 causes the fixing pin 17 to slide upwards along the support plate 16 and stretch the fixing spring 19, causing the lower end of the fixing pin 17 to disengage from the initial fixing hole of the fixing block 15. At this time, the armrest 14 can be rotated around the rotating shaft 12 to a vertical position. After releasing the lever 18, the rebound force of the fixing spring 19 causes the fixing pin 17 to return downwards and insert into the corresponding fixing hole of the fixing block 15, thereby locking the angle of the armrest 14 and preventing the armrest 14 from rotating accidentally when pushed. If it is necessary to transport goods, the goods can be placed on the two support plates. The upper end face of the carrier plate 1 is then flipped over, and the baffle 21 in the storage slot is rotated upward around the connecting rod 20 to a vertical state. Then the bolt 23 on the mounting plate 22 is rotated so that the bolt 23 is screwed into the threaded hole on the outer wall of the baffle 21, thus completing the fixation of the baffle 21. The four baffles 21 form a enclosure structure, which can effectively prevent the goods from sliding off the edge of the carrier plate 1 during transportation. When the handle 14 is pushed, the universal self-locking wheel 2 can be flexibly turned. If temporary parking is required, the brake pedal of the universal self-locking wheel 2 can be pressed to lock the wheel and prevent the handcart from moving on its own.

[0036] When the trolley is finished and needs to be stored or moved, first turn the bolt 23 in the opposite direction to disengage it from the threaded hole of the baffle 21, flip the baffle 21 into the storage slot, then push the lever 18 upward to release the angle lock of the handle 14, rotate the handle 14 to the storage position parallel to the support plate 1, release the lever 18 to relock the fixing pin 17, and finally pull the handles 10 on both sides to disengage the pin 9 from the insertion hole of the other support plate 1, so that the two support plates 1 can be separated. The disassembled trolley parts can be stacked or stored separately, significantly reducing the space occupied and making it easy to store in narrow areas or transport with the vehicle.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A structurally stable collapsible trolley comprising two load bearing plates (1), characterised in that, Two universal self-locking wheels (2) are fixedly installed on the bottom wall of each of the two bearing plates (1), one of the bearing plates (1) is fixedly installed with a prismatic rod (4) through a connecting frame (3), the outer wall of the prismatic rod (4) is slidably installed with two moving sliding blocks (5), the outer wall of the prismatic rod (4) is installed with two tension springs (6), the two ends of the two tension springs (6) are elastically connected with the inner wall of the connecting frame (3) and the outer wall of the sliding block (5) on the same side respectively, the inner wall of each of the two sliding blocks (5) is fixedly connected with an adapter plate (8) through an adapter mechanism, the inner wall of each of the two adapter plates (8) is fixedly installed with two latches (9), the two sides of the bearing plate (1) are provided with latch holes for installing the two latches (9), the outer wall of each of the two adapter plates (8) is fixedly installed with a handle (10), the upper end face of the other bearing plate (1) is rotatably installed with a rotating shaft (12) through a supporting frame (11), the outer wall of the rotating shaft (12) is fixedly installed with a handrail (14) through a mounting mechanism, the outer wall of the rotating shaft (12) is fixedly installed with a fixed block (15), the upper end face of the other bearing plate (1) is slidably penetrated and installed with a fixed pin (17) through a supporting plate (16), the outer wall of the fixed block (15) is provided with two fixed holes matched with the fixed pin (17), the outer wall of the fixed pin (17) is fixedly installed with a shifting block (18), and the bottom wall of the shifting block (18) is connected with the upper end face of the supporting plate (16) through a fixing mechanism.

2. A structurally stable collapsible stroller according to claim 1, characterized in that, The adapter mechanism comprises two adapter rods (7) fixedly installed on the inner wall of the sliding block (5), and the ends of the two adapter rods (7) are fixedly connected with the inner wall of the adapter plate (8).

3. A structurally stable collapsible stroller according to claim 2, wherein, The mounting mechanism comprises two mounting sleeves (13) fixedly installed on the outer wall of the rotating shaft (12), and the handrail (14) is fixedly installed on the outer wall of the two mounting sleeves (13).

4. A structurally stable collapsible stroller according to claim 3, wherein, The fixing mechanism comprises a fixing spring (19) installed on the outer wall of the fixed pin (17), and the two ends of the fixing spring (19) are elastically connected with the upper end face of the supporting plate (16) and the bottom wall of the shifting block (18) respectively.

5. A structurally stable collapsible stroller according to claim 4, wherein, The upper end face of each of the two bearing plates (1) is provided with two receiving grooves, and the inner part of each receiving groove is fixedly installed with a connecting rod (20).

6. A structurally stable collapsible stroller according to claim 5, wherein, The outer wall of each mounting plate (22) is rotatably penetrated and installed with a bolt (23), and the outer wall of each baffle (21) is provided with a threaded hole matched with the bolt (23).

Images