Tortoise car convenient to splice
By designing a support plate structure with plugs and slots, as well as a locking structure, the problems of complex assembly and unstable connection of the tortoise-shaped vehicle were solved, enabling rapid assembly and stable transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI BAINIAN LANGYI CASTER MFG CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-05
AI Technical Summary
The existing tortoise-shaped vehicle has a complex assembly structure, poor connection stability, is inconvenient to operate, and is prone to separation during transportation due to uneven ground.
A support plate structure with plugs and slots was designed, combined with a locking structure, to achieve quick splicing and stable connection of the support plate. The splicing difficulty is reduced by the plug and slot interlocking method, and the locking structure prevents separation.
It simplifies the splicing process, shortens the installation time, improves the efficiency of transportation preparation, and maintains a stable connection during transportation to prevent separation.
Smart Images

Figure CN224197789U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of handling equipment, and in particular to a tortoise-shaped vehicle that is easy to assemble. Background Technology
[0002] In industrial transportation scenarios, tortoise-shaped transport carts are a common handling tool, often requiring multiple units to be joined together to expand the carrying capacity or modify the transport structure. However, existing tortoise-shaped transport carts generally suffer from problems such as complex joining structures, poor connection stability, and inconvenient operation. For example, patent document CN221068133U discloses a modular portable cart that can be joined in pairs, but the carts need to be lifted to attach to another cart, making the joining and cleaning process inconvenient. Furthermore, after joining, the two carts do not form a secure connection, which may lead to separation during transport due to uneven ground and severe jolting. Utility Model Content
[0003] Therefore, the purpose of this utility model is to provide a tortoise car that is easy to assemble and can be securely connected together after assembly.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows:
[0005] A tortoise-shaped vehicle that is easy to assemble includes a support plate and several casters disposed at the bottom of the support plate. The support plate includes short edges distributed front and back and long edges distributed left and right. Several first plugs extending to the left or right are provided on the long edges, and several first slots that can be inserted into the first plugs on the adjacent left or right support plates are provided on the other side of the long edge. The first slots are provided with a first locking structure that can connect and fix them to the first plugs on the adjacent support plates. Several second plugs extending forward or backward are provided on the short edges, and several second slots that can be inserted into the second plugs on the adjacent front or rear support plates are provided on the other side of the short edges. The second slots are provided with a second locking structure that can connect and fix them to the second plugs on the adjacent support plates.
[0006] In a preferred embodiment of this utility model, the number of the first slots is at least two, and a first recessed area is provided between two adjacent first slots. A first through hole is provided between the first recessed area and the first slot to allow the two to communicate. The first locking structure includes a first pin disposed in the first through hole and movable back and forth, a first return spring disposed in the long edge and capable of resetting the first pin, a first locking pin disposed on the first pin and capable of limiting the length of the first pin inserted into the first slot, and a first insertion hole disposed on the first plug and capable of engaging with the first pin.
[0007] In a preferred embodiment of the present invention, a first pull part is provided at one end of the first pin and located in the first recessed area. The first recessed area includes a first limiting groove provided on its side wall, and the first pull part is provided with a first limiting protrusion that can be locked in the first limiting groove.
[0008] In a preferred embodiment of this utility model, the number of the second slots is at least two, and a second recessed area is provided between two adjacent second slots. A second through hole is provided between the second recessed area and the second slot to allow them to communicate. The second locking structure includes a second pin disposed in the second through hole and movable left and right, a second return spring disposed in the short edge and capable of resetting the second pin, a second locking pin disposed on the second pin and capable of limiting the length of the second pin inserted into the second slot, and a second insertion hole disposed on the second plug and capable of engaging with the second pin.
[0009] In a preferred embodiment of the present invention, a second pull part is provided at one end of the second pin and located in the second recessed area. The second recessed area includes a second limiting groove provided on its side wall, and the second pull part is provided with a second limiting protrusion that can be locked in the second limiting groove.
[0010] In a preferred embodiment of this utility model, the edge of the support plate is provided with a plurality of inwardly recessed areas, the number of the recessed areas corresponds to the number of the casters, and the positions between the recessed areas correspond to the positions between the casters. The recessed areas include the first recessed area and the second recessed area.
[0011] In a preferred embodiment of the present invention, the upper surface of the support plate is provided with a plurality of recesses 19 corresponding to the casters one by one, and when the two support plates are stacked together, the recesses 19 on the lower support plate are exposed to the outside.
[0012] In a preferred embodiment of the present invention, the support plate is provided with upwardly protruding limiting protrusions on both sides of the recessed area at the edge of the support plate.
[0013] In a preferred embodiment of the present invention, a third groove extending inward is provided on the side wall of the recessed area, and a traction rope hole is provided on the bottom surface of the third groove.
[0014] In a preferred embodiment of the present invention, anti-slip protrusions are evenly distributed on the upper surface of the support plate, and an opening is provided at the center of the support plate.
[0015] The beneficial effects of this utility model are as follows: The turtle-shaped vehicle includes a support plate and casters. Several first plugs extending to the left or right are provided on the long edge of the support plate, and several first slots on the other long edge can be inserted into the first plugs on the adjacent left or right support plates. A first locking structure is provided in each of the first slots to connect and fix the first plugs on the adjacent support plates. Several second plugs extending forward or backward are provided on the short edge of the support plate, and several second slots on the other short edge can be inserted into the second plugs on the adjacent front or rear support plates. A second locking structure is provided in each of the second slots to connect and fix the second plugs on the adjacent support plates. This plug-and-slot insertion method significantly reduces the difficulty of the assembly operation, shortens the installation time, and improves the efficiency of transportation preparation. Furthermore, the locking by the first and second locking structures prevents the assembled turtle-shaped vehicle from separating during transportation due to severe bumps caused by uneven ground. Attached Figure Description
[0016] Figure 1 This is a lower schematic diagram of the present invention;
[0017] Figure 2 This is a top view of the present invention;
[0018] Figure 3 This is an exploded view of the first pin, the first return spring, and the first locking pin in this utility model;
[0019] Figure 4 This is an exploded view of the second pin, the second return spring, and the second locking pin in this utility model;
[0020] Figure 5 This is a schematic diagram of the turtle car after assembly;
[0021] Figure 6 This is a schematic diagram of the present invention after the turtle carts are stacked. Detailed Implementation
[0022] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.
[0023] Reference Figures 1 to 6 A tortoise-shaped vehicle that is easy to assemble includes a support plate 1 and several casters 2 disposed at the bottom of the support plate 1. The support plate 1 includes short edges 11 distributed front to back and long edges 12 distributed left to right. The long edges 12 are provided with several first plugs 3 extending to the left or right, and the other long edge 12 is provided with several first slots 4 that can be inserted into the first plugs 3 on the adjacent support plates 1 on the left or right. The first slots 4 are provided with first locking structures 5 that can connect and fix them to the first plugs 3 on the adjacent support plates 1. The short edges 11 are provided with several second plugs 6 extending forward or backward, and the other short edge 11 is provided with several second slots 7 that can be inserted into the second plugs 6 on the adjacent support plates 1 on the front or rear. The second slots 7 are provided with second locking structures 8 that can connect and fix them to the second plugs 6 on the adjacent support plates 1. This structure allows for the splicing of the tortoise-shaped transport vehicles in both left-right and front-back directions, enabling multiple vehicles to be quickly combined into transport platforms of different sizes to meet transportation needs, thus expanding the equipment's application scenarios. Furthermore, the plug-and-slot connection significantly reduces the difficulty of the splicing operation, shortens installation time, and improves transportation preparation efficiency. Additionally, the first locking structure 5 and the second locking structure 8 ensure secure locking, preventing the assembled tortoise-shaped vehicles from separating during transportation due to severe bumps caused by uneven ground.
[0024] In this design, there are at least two first slots 4, and a first recessed area 13 is provided between two adjacent first slots 4. A first through hole 14 is provided between the first recessed area 13 and the first slot 4 to allow them to communicate. The first locking structure 5 includes a first pin 51 disposed in the first through hole 14 and movable back and forth, a first return spring 52 disposed in the long edge 12 and capable of resetting the first pin 51, a first locking pin 53 disposed on the first pin 51 and capable of limiting the length of the first pin 51 inserted into the first slot 4, and a first socket 54 disposed on the first plug 3 and capable of engaging with the first pin 51. The first locking pin 53 is inserted into the protruding end of the first pin 51 and is located inside the support plate 1. The length of the first pin 51 inserted into the first slot 4 is limited by the first locking pin 53 abutting against the inner wall. Specifically, a first pull part 511 is provided at one end of the first pin 51 and located within the first recessed area 13. The first recessed area 13 includes a first limiting groove 15 disposed on its side wall. The first pull part 511 is provided with a first limiting protrusion 512 that can be locked within the first limiting groove 15. Thus, by pulling the first pull part 511 by hand, the protruding end of the first pin 51 retracts into the support plate 1, allowing the first plug 3 to be inserted into the first slot 4. Then, releasing the first pull part 511 locks the first plug 3 into the first slot 4, thereby completing the left-right splicing of the two tortoise cars. Simultaneously, by locking the first limiting protrusion 512 into the first limiting groove 15, the first plug 3 can be inserted into the first slot 4 without continuously pulling the first pull part 511, facilitating splicing.
[0025] In this design, there are at least two second slots 7, and a second recessed area 16 is provided between two adjacent second slots 7. A second through hole 17 is provided between the second recessed area 16 and the second slot 7 to allow them to communicate. The second locking structure 8 includes a second pin 81 disposed in the second through hole 17 and movable left and right, a second return spring 82 disposed in the short edge 11 and capable of resetting the second pin 81, a second locking pin 83 disposed on the second pin 81 and capable of limiting the length of the second pin 81 inserted into the second slot 7, and a second socket 84 disposed on the second plug 6 and capable of engaging with the second pin 81. The second locking pin 83 is inserted into the protruding end of the second pin 81 and is located inside the support plate 1. The length of the second pin 81 inserted into the second slot 7 is limited by the second locking pin 83 abutting against the inner wall. Specifically, a second pull part 811 is provided at one end of the second pin 81 and within the second recessed area 16. The second recessed area 16 includes a second limiting groove 18 disposed on its side wall. The second pull part 811 is provided with a second limiting protrusion 812 that can be engaged within the second limiting groove 18. By pulling the second pull part 811 by hand, the protruding end of the second pin 81 retracts into the support plate 1, allowing the second plug 6 to be inserted into the second slot 7. Releasing the second pull part 811 locks the second plug 6 into the second slot 7, thus completing the splicing of the two tortoise-like vehicles in the front-to-back direction. Simultaneously, by engaging the second limiting protrusion 812 within the second limiting groove 18, the second plug 6 can be inserted into the second slot 7 without continuously pulling the second pull part 811, facilitating splicing.
[0026] In this design, the edge of the support plate 1 has several inwardly recessed areas. The number of recessed areas corresponds to the number of casters 2, and the positions between the recessed areas correspond to the positions between the casters 2. The recessed areas include a first recessed area 13 and a second recessed area 16. Thus, when two support plates 1 are stacked together, rotating the upper support plate 1 allows the casters 2 of the upper support plate 1 to pass through the recessed areas of the lower support plate 1, enabling the upper support plate 1 to fit snugly against the upper surface of the lower support plate 1. This facilitates the stacking of multiple tortoise carts, saves stacking space, and improves the utilization rate of storage space.
[0027] In this design, the upper surface of the support plate 1 is provided with several recesses 19 corresponding one-to-one with the casters 2, and when two support plates 1 are stacked together, the recesses 19 on the lower support plate 1 are exposed. Thus, when two sets of tortoise cars (two support plates 1 stacked together) are stacked together, the casters 2 of the upper set will rest on the recesses 19 of the lower set, facilitating the stacking of multiple tortoise cars and making the stacking more stable. This prevents the tortoise cars from easily slipping off due to the casters 2 resting on the upper surface of the support plate 1.
[0028] In this design, the support plate 1 has upwardly protruding limiting plates 9 on both sides of the recessed area along its edge. This allows the limiting plates to restrict the position of the upper support plate 1 when two support plates 1 are stacked together, facilitating the stacking of the tortoise carts and preventing significant swaying of the upper support plate 1, thus improving the stability of the stacked tortoise carts.
[0029] In this design, a third groove extending inward is provided on the sidewall of the recessed area, and a traction rope hole 10 is provided on the bottom surface of the third groove. The traction rope hole 10 facilitates the towing and transportation of the torpedo cart, allowing operators to connect the torpedo cart by passing a traction rope through the traction rope hole 10. This makes it convenient to tow and move single or multiple torpedo carts assembled together, especially suitable for scenarios requiring long-distance transport or movement in complex terrain.
[0030] In this design, anti-slip protrusions are evenly distributed on the upper surface of the support plate 1, and an opening is provided at the center of the support plate 1. The anti-slip protrusions increase the friction on the upper surface of the support plate 1, effectively preventing goods placed on the tortoise cart from sliding due to vibration or tilting during transportation, thus improving the safety and stability of transported goods. At the same time, the design of the central opening reduces the overall weight of the support plate 1, lowering the manufacturing cost of the tortoise cart and reducing the difficulty of handling.
[0031] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A tortoise-shaped vehicle that is easy to assemble, comprising a support plate (1) and a plurality of casters (2) disposed at the bottom of the support plate (1), wherein the support plate (1) comprises short edges (11) distributed front to back and long edges (12) distributed left to right, characterized in that, The long edge (12) is provided with a plurality of first plugs (3) extending to the left or to the right, and the other side of the long edge (12) is provided with a plurality of first slots (4) that can be inserted into the first plugs (3) on the adjacent support plate (1) on the left or right. The first slots (4) are provided with a first locking structure (5) that can be connected and fixed to the first plugs (3) on the adjacent support plate (1). The short edge (11) is provided with a plurality of second plugs (6) extending forward or backward, and the other side of the short edge (11) is provided with a plurality of second slots (7) that can be inserted into the second plugs (6) on the adjacent support plate (1) on the front or rear. The second slots (7) are provided with a second locking structure (8) that can be connected and fixed to the second plugs (6) on the adjacent support plate (1).
2. The turtle car that is easy to assemble according to claim 1, characterized in that, The number of the first slots (4) is at least two, and a first recessed area (13) is provided between two adjacent first slots (4). A first through hole (14) is provided between the first recessed area (13) and the first slot (4) to allow the two to communicate. The first locking structure (5) includes a first pin (51) disposed in the first through hole (14) and movable back and forth, a first return spring (52) disposed in the long edge (12) and capable of resetting the first pin (51), a first latch (53) disposed on the first pin (51) and capable of limiting the length of the first pin (51) inserted into the first slot (4), and a first socket (54) disposed on the first plug (3) and capable of engaging with the first pin (51).
3. The turtle car that is easy to assemble according to claim 2, characterized in that, A first pull part (511) is provided at one end of the first pin (51) and located in the first recessed area (13). The first recessed area (13) includes a first limiting groove (15) provided on its side wall. The first pull part (511) is provided with a first limiting protrusion (512) that can be locked in the first limiting groove (15).
4. A turtle-shaped vehicle that is easy to assemble according to claim 2 or 3, characterized in that, The number of the second slots (7) is at least two, and a second recessed area (16) is provided between two adjacent second slots (7). A second through hole (17) is provided between the second recessed area (16) and the second slot (7) to allow them to communicate. The second locking structure (8) includes a second pin (81) disposed in the second through hole (17) and movable left and right, a second return spring (82) disposed in the short edge (11) and capable of resetting the second pin (81), a second latch (83) disposed on the second pin (81) and capable of limiting the length of the second pin (81) inserted into the second slot (7), and a second socket (84) disposed on the second plug (6) and capable of engaging with the second pin (81).
5. A turtle-shaped car that is easy to assemble according to claim 4, characterized in that, The second hand pull part (811) is provided at one end of the second pin (81) and in the second recessed area (16). The second recessed area (16) includes a second limiting groove (18) provided on its side wall. The second hand pull part (811) is provided with a second limiting protrusion (812) that can be locked in the second limiting groove (18).
6. A turtle-shaped car that is easy to assemble according to claim 4, characterized in that, The support plate (1) has several recessed areas that are recessed inward at its edge. The number of recessed areas corresponds to the number of casters (2), and the position between the recessed areas corresponds to the position between the casters (2). The recessed areas include the first recessed area (13) and the second recessed area (16).
7. A turtle-shaped car that is easy to assemble according to claim 6, characterized in that, The upper surface of the support plate (1) is provided with a number of recesses (19) that correspond one-to-one with the caster (2), and when the two support plates (1) are stacked together, the recesses (19) on the lower support plate (1) are exposed to the outside.
8. A turtle-shaped car that is easy to assemble according to claim 6, characterized in that, The support plate (1) has upwardly protruding limiting protrusions (9) on both sides of the recessed area at the edge of the support plate (1).
9. A turtle-shaped car that is easy to assemble according to claim 6, characterized in that, The sidewall of the recessed area is provided with a third groove extending inward, and the bottom surface of the third groove is provided with a traction rope hole (10).
10. A turtle-shaped car that is easy to assemble according to claim 1, characterized in that, The upper surface of the support plate (1) is uniformly distributed with anti-slip protrusions, and the center of the support plate (1) is provided with an opening.
Citation Information
Patent Citations
Splicing type portable plate trailer
CN221068133U