Heavy spare tire retracting and releasing device
By designing a heavy-duty spare tire retraction and deployment device, and utilizing components such as support plates, casters, and guide frames, stable retraction and deployment of spare tires for heavy-duty vehicles has been achieved. This solves the problems of difficult and costly spare tire replacement in existing technologies, simplifies the operation process, and reduces equipment costs.
Patent Information
- Application Number
- CN202520488630.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-19
AI Technical Summary
Changing spare tires in existing heavy vehicles is difficult, especially for spare tires located behind the cab, which are complicated to operate due to limited space and high costs. Existing hydraulic systems are also expensive.
A heavy-duty spare tire retraction and deployment device was designed. Utilizing components such as a support plate, casters, guide frame, and tension rope, the device achieves stable retraction and deployment of the spare tire by driving the winding rope and tension rope with a motor, thus preventing shaking and falling and simplifying the operation process.
It improves the stability and ease of operation of spare tire deployment and retraction, reduces equipment costs, and simplifies the spare tire replacement process.
Smart Images
Figure CN223764569U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle engineering technology, specifically to a heavy-duty spare tire retraction and deployment device. Background Technology
[0002] Heavy-duty vehicle spare tires are spare tires designed specifically for large, heavy-duty vehicles to deal with tire damage that may occur during long-distance travel or in harsh road conditions. These spare tires typically have larger dimensions, higher load-bearing capacity, and greater durability to accommodate the weight and driving requirements of heavy-duty vehicles. Heavy-duty vehicle spare tires usually feature thicker and wider treads and sidewalls, as well as enhanced internal structures to ensure stable support of the vehicle's weight in emergency situations and to provide sufficient grip and handling.
[0003] Most existing heavy vehicles carry a spare tire. For some special-purpose heavy vehicles, the spare tire is located behind the cab due to the overall vehicle layout. Because the spare tire is large and heavy, and the chassis is high, changing the spare tire is difficult. The current method for changing the spare tire of heavy vehicles is to use a crane to lift it. However, since the spare tire is located behind the cab, the operating space is limited, and the operator needs to make constant adjustments during the lifting process. Another method is to use a hydraulic cylinder to drive the loading arm to rotate through the extension and retraction of the hydraulic cylinder, thereby achieving the purpose of raising and lowering the spare tire. However, the entire vehicle needs to be equipped with a hydraulic system, which is relatively expensive.
[0004] Therefore, it is necessary to provide a new heavy-duty spare tire retraction and deployment device to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide a heavy-duty spare tire retraction device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty spare tire retraction device, including a base plate, and further comprising:
[0007] A support plate is installed on the top of the base plate. The bottom of the support plate is equipped with casters. The top of the casters is equipped with a body. A protective frame is fixedly connected to the top of the base plate to protect the body. A first guide frame is rotatably connected to the inner cavity of the base plate to guide the body's retraction and extension. A first connecting frame is fixedly connected to one side of the first guide frame. A second connecting frame is rotatably connected to the inner wall of the first connecting frame. A second guide frame is fixedly connected to one side of the second connecting frame. A support frame is fixedly connected to one side of the second guide frame.
[0008] A tension rope is provided on the outside of the main body. A mounting plate is fixedly connected to one side of the base plate. A support base is fixedly connected to the top of the mounting plate. A motor is installed on one side of the support base. A take-up roller is fixedly connected to the output end of the motor. A take-up rope is provided on the outside of the take-up roller. A pull ring for tightening the tension rope is provided at one end of the take-up rope.
[0009] Preferably, a support rod is fixedly connected to the top of the support plate, and a locking block is engaged with the inner wall of the support rod.
[0010] Preferably, a limiting seat for limiting the main body is fixedly connected to the top of the card block, and a mounting bracket is fixedly connected to the outside of the limiting seat.
[0011] Preferably, a fixing block is fixedly connected to one side of the first guide frame, and a self-locking winding wheel is provided inside the fixing block.
[0012] Preferably, a pull rope is provided on the outer side of the self-locking winding reel, and a hook is fixed to one end of the pull rope.
[0013] Preferably, a connecting block is fixedly connected to the top of the protective frame, and a hanging rod is fixedly connected to one side of the connecting block.
[0014] Preferably, a connecting plate is fixedly connected to the top of the mounting plate, and a guide wheel for guiding the winding rope is fixedly connected to one side of the connecting plate.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This utility model uses a support plate and casters to move the main body. The support plate moves the main body slowly along the first guide frame and the second guide frame. When the main body descends to the ground, the tension rope and the limiting seat are released to complete the lowering of the main body. The tension rope limits the main body to improve the stability of the main body during storage. At the same time, the tension rope tightens the first guide frame to limit the main body and prevent the main body from shaking and falling. Attached Figure Description
[0017] Figure 1 A schematic diagram of a preferred embodiment of the heavy-duty spare tire retraction device provided by this utility model;
[0018] Figure 2 This is a schematic diagram of the pull rope structure in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the first guide frame in this utility model;
[0020] Figure 4 This is a schematic diagram of the support plate in this utility model;
[0021] Figure 5 This is a schematic diagram of the connecting plate in this utility model.
[0022] In the diagram: 1. Base plate; 2. Support plate; 3. Caster wheel; 4. Body; 5. Protective frame; 6. First guide frame; 7. First connecting frame; 8. Second connecting frame; 9. Second guide frame; 10. Support frame; 11. Tensioning rope; 12. Mounting plate; 13. Support base; 14. Motor; 15. Take-up roller; 16. Take-up rope; 17. Pull ring; 18. Support rod; 19. Locking block; 20. Limiting seat; 21. Mounting frame; 22. Fixing block; 23. Self-locking take-up wheel; 24. Pull rope; 25. Hook; 26. Connecting block; 27. Hanging rod; 28. Connecting plate; 29. Guide wheel. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-5As shown, a heavy-duty spare tire retraction device includes a base plate 1, a support plate 2 on the top of the base plate 1, and casters 3 at the bottom of the support plate 2. The casters 3 are existing technology and have a self-locking function. A body 4 is mounted on the top of the casters 3. A protective frame 5 is fixedly connected to the top of the base plate 1 to protect the body 4 and prevent it from falling. A first guide frame 6 is rotatably connected to the inner cavity of the base plate 1, guiding the retraction and deployment of the body 4. A first connecting frame 7 is fixedly connected to one side of the first guide frame 6, and a second connecting frame 8 is rotatably connected to the inner wall of the first connecting frame 7. A second guide frame 9 is fixedly connected to one side of the second connecting frame 8. The first guide frame 6 and the second guide frame 9 provide guidance during the retraction and deployment of the body 4, improving its stability. A support frame 10 is fixedly connected to the side, which supports the second guide frame 9 and improves its stability. A tension rope 11 is provided on the outside of the main body 4 to tension and limit the main body 4. A mounting plate 12 is fixedly connected to one side of the base plate 1. A support base 13 is fixedly connected to the top of the mounting plate 12. A motor 14 is installed on one side of the support base 13. A take-up roller 15 is fixedly connected to the output end of the motor 14. A take-up rope 16 is provided on the outside of the take-up roller 15. A pull ring 17 is provided at one end of the take-up rope 16. The tension rope 11 is tied to the outside of the main body 4. The pull ring 17 is located on the outside of the take-up rope 16. The motor 14 drives the take-up roller 15 to rotate, so that the take-up rope 16 pulls the tension rope 11 through the pull ring 17. The tension rope 11 pulls the main body 4 to move, which facilitates the winding of the main body 4.
[0025] A support rod 18 is fixedly connected to the top of the support plate 2. A locking block 19 is snapped into the inner wall of the support rod 18. A limiting seat 20 is fixedly connected to the top of the locking block 19. The limiting seat 20 limits the movement of the main body 4, thus mounting the main body 4 on the top of the support plate 2 and preventing it from falling off. The support plate 2 and the casters 3 allow the main body 4 to move, improving its stability during retraction and extension. A mounting bracket 21 is fixedly connected to the outer side of the limiting seat 20. The mounting bracket 21 is fixed to the outer side of the support rod 18 with bolts, thus limiting the movement of the limiting seat 20. During installation, a fixing block 22 is fixedly connected to one side of the first guide frame 6. A self-locking winding wheel 23 is provided inside the fixing block 22. The self-locking winding wheel 23 is existing technology. A pull rope 24 is provided on the outside of the self-locking winding wheel 23. A hook 25 is fixed to one end of the pull rope 24. A connecting block 26 is fixedly connected to the top of the protective frame 5. A hanging rod 27 is fixedly connected to one side of the connecting block 26. By pulling the pull rope 24 and the hook 25, the frame moves and the hook 25 is hung on the hanging rod 27, so that the pull rope 24 limits the main body 4 and improves the stability of the main body 4 during storage.
[0026] A connecting plate 28 is fixedly connected to the top of the mounting plate 12, and a guide wheel 29 is fixedly connected to one side of the connecting plate 28. The guide wheel 29 guides the winding rope 16, improves the stability of the winding rope 16, and protects the winding rope 16.
[0027] Working principle: When using this device, Figure 2 With the main body 4 in its folded state, rotate the first guide frame 6 and the second guide frame 9 to fold them. Move the first guide frame 6 and the second guide frame 9 by pulling the pull rope 24 and the hook 25, hooking the hook 25 onto the hanging rod 27. This allows the pull rope 24 to limit the main body 4, improving its storage stability. Simultaneously, the pull rope 24 tightens the first guide frame 6, limiting the main body 4 and preventing it from shaking and falling. Rotate the first guide frame 6 and the second guide frame 9 again... The frame 9 serves as a guide during the retraction and extension of the main body 4, improving its stability. The support frame 10 supports the second guide frame 9, further enhancing its stability. The motor 14 drives the take-up roller 15 to rotate, loosening the take-up rope 16. The support plate 2 and caster 3 then move the main body 4. The support plate 2 moves the main body 4 slowly along the first guide frame 6 and the second guide frame 9. When the main body 4 descends to the ground, the tension rope 11 and the limit seat 20 are released, completing the lowering of the main body 4.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heavy spare tire loading and unloading device comprising a base plate (1), characterized in that, Also includes: The support plate (2) is arranged on the top of the bottom plate (1), the bottom of the support plate (2) is provided with universal wheel (3), the top of the universal wheel (3) is provided with the body (4), the top of the bottom plate (1) is fixedly connected with the protection frame (5) for protecting the body (4), the inner cavity of the bottom plate (1) is rotatably connected with the first guide frame (6) for guiding the body (4) to be put in and taken out, one side of the first guide frame (6) is fixedly connected with the first connecting frame (7), the inner wall of the first connecting frame (7) is rotatably connected with the second connecting frame (8), one side of the second connecting frame (8) is fixedly connected with the second guide frame (9), one side of the second guide frame (9) is fixedly connected with the support frame (10); The tensioning rope (11) is arranged on the outer side of the body (4), one side of the bottom plate (1) is fixedly connected with the mounting plate (12), the top of the mounting plate (12) is fixedly connected with the supporting seat (13), the supporting seat (13) is mounted with the motor (14) on one side, the output end of the motor (14) is fixedly connected with the winding roller (15), the outer side of the winding roller (15) is provided with the winding rope (16), one end of the winding rope (16) is provided with the pull ring (17) for tensioning the tensioning rope (11).
2. A heavy spare tire loading and unloading device according to claim 1, characterized in that: The top of the support plate (2) is fixedly connected with the support rod (18), the inner wall of the support rod (18) is clamped with the clamping block (19).
3. A heavy spare tire loading and unloading device according to claim 2, characterized in that: The top of the clamping block (19) is fixedly connected with the limiting seat (20) for limiting the body (4), the outer side of the limiting seat (20) is fixedly connected with the mounting frame (21).
4. A heavy spare tire loading and unloading device according to claim 1, characterized in that: One side of the first guide frame (6) is fixedly connected with the fixed block (22), the inside of the fixed block (22) is provided with the self-locking winding wheel (23).
5. A heavy spare tire loading and unloading device according to claim 4, characterized in that: The outer side of the self-locking winding wheel (23) is provided with the pull rope (24), one end of the pull rope (24) is fixedly connected with the hook (25).
6. A heavy spare tire loading and unloading device according to claim 1, characterized in that: The top of the protection frame (5) is fixedly connected with the connecting block (26), one side of the connecting block (26) is fixedly connected with the hanging rod (27).
7. A heavy spare tire loading and unloading device according to claim 1, characterized in that: The top of the mounting plate (12) is fixedly connected with the connecting plate (28), one side of the connecting plate (28) is fixedly connected with the guide wheel (29) for guiding the winding rope (16). The top of the protection frame (5) is fixedly connected with the connecting block (26), one side of the connecting block (26) is fixedly connected with the hanging rod (27).