Novel material welded lightweight towing seat

CN224898970UActive Publication Date: 2026-10-27JOST CHINA AUTO COMPONENT CO LTD
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Patent Information

Application Number
CN202522319761.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-10-27
Estimated Expiration
2035-10-31

AI Technical Summary

Technical Problem

[0002]传统牵引座多采用普通钢材制造,虽能满足基本强度需求,但重量较大,导致承载主体负荷增加,运行能耗偏高,且在运输等场景中经济性不佳

Benefits of technology

[0004]本实用新型的目的在于至少解决现有技术中存在的技术问题之一,提供一种新材料焊接式轻量化牵引座,轻量化高效能:采用低密度奥氏体钢,减重约13kg,减重比11%,降低负荷并提升运行经济性,耐用性强,缓冲机构减少部件撞击磨损,延长寿命,降低维护成本。

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Abstract

The utility model discloses a new material welding type light weight traction seat, including support, apron, first rotation axis, mounting panel, pull rod, lock hook, pin block, first threaded rod, buffer mechanism and spring etc. structure, and buffer mechanism contains third fixed plate, second threaded rod, sliding block, buffer pad and guide rod. The traction seat adopts low density austenite steel, is fixed through the support, and the apron rotates around the first rotation axis and connects the traction pin, and the lock hook cooperates with the pin block and wraps the traction pin, and the first threaded rod forms multiple locking, and the buffer mechanism reduces the impact wear, and the spring assists reset, realizes about 13kg weight reduction and 11% weight reduction ratio, guarantees the strength, improves the connection stability, operation convenience and service life simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of automotive traction technology, and in particular to a new type of welded lightweight traction seat. Background Technology

[0002] Traditional towing seats are mostly made of ordinary steel, which can meet basic strength requirements, but they are heavy, which increases the load on the main body, results in high operating energy consumption, and is not economical in transportation and other scenarios.

[0003] Meanwhile, traditional traction seats lack effective buffer mechanisms, resulting in severe impact wear between components. This not only shortens their service life but also requires frequent maintenance, increasing operating costs. Furthermore, some traction seats have inadequate operational designs, making unlocking and resetting processes laborious and cumbersome, reducing work efficiency. Their overall structural layout is sometimes asymmetrical, and the stability of supporting components is insufficient, causing deviations in the movement trajectories of various parts, further affecting the overall performance and reliability of the traction seat. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a new material welded lightweight traction seat that is lightweight and efficient: it adopts low-density austenitic steel, reducing the weight by about 13kg, a weight reduction ratio of 11%, reducing the load and improving the economic efficiency of operation, with strong durability, and the buffer mechanism reduces the impact and wear of components, extends the service life, and reduces maintenance costs.

[0005] This utility model also provides a lightweight traction seat with a new material welded type, a support, wherein a cover plate is rotatably connected to the outer side of the support via a first rotating shaft, a first fixing plate is horizontally fixedly connected to the top inner wall of the cover plate near the front and rear ends, a fourth fixing plate is longitudinally fixedly connected to the top inner wall of the cover plate near both sides, a pull rod is slidably connected to the inner wall of the fourth fixing plate on the left side, a first threaded rod is threadedly connected to the inner wall of the fourth fixing plate on the right side, a pin block is fixedly connected to the upper end of the pull rod via a second bolt, a second fixing plate is fixedly connected between the two first fixing plates, a locking hook is rotatably connected to the upper end of the second fixing plate via a second rotating shaft, a pull ring is fixedly connected to the left end of the pull rod, and a buffer mechanism is provided on the left side of the pull rod;

[0006] The buffer mechanism includes:

[0007] The third fixing plate is fixedly connected to the pull rod near the rear end;

[0008] The second threaded rod has its outer surface threadedly connected to the third fixed plate.

[0009] The slider has its right end rotatably connected to the second threaded rod, and its inner wall is slidably connected to the pull rod.

[0010] A buffer pad, the left end of which is fixedly connected to the left end of the slider, and the right end of which is tightly fitted to the outer surface of the cover plate.

[0011] According to the new material welded lightweight traction seat, an mounting plate is fixedly connected to the outer side of the cover plate, and the mounting plate is fixedly connected to the cover plate by a first bolt.

[0012] By adopting the above technical solutions, the connection stability between the cover plate and the external structure is enhanced, and the structure of the traction seat is further improved.

[0013] According to the new material welded lightweight traction seat, the number of supports is two and they are horizontally symmetrically distributed, and the number of the first rotating shafts is two and they correspond one-to-one with the supports.

[0014] By adopting the above technical solution, the number of first rotating shafts is also two, and they correspond one-to-one with the supports, which helps to ensure the stability and balance of the traction seat during use.

[0015] According to the new material welded lightweight traction seat, a first spring is fixedly connected to the bottom of the pull rod, and the end of the first spring away from the pull rod is fixedly connected to a second fixing plate.

[0016] By adopting the above technical solution, the elastic force of the first spring is used to keep the lever stable in the locked state, while also providing a certain buffering and reset function during the unlocking process.

[0017] According to the new material welded lightweight traction seat, a second spring is fixedly connected to the rear end of the locking hook, and the end of the second spring away from the locking hook is fixedly connected to a first fixing plate near the front end.

[0018] By adopting the above technical solution, the second spring is stretched when the traction pin is inserted and retracted when unlocking, which drives the locking hook to return to its position, thereby realizing the locking and unlocking functions of the traction pin.

[0019] According to the new material welded lightweight traction seat, the front end of the pin block is tightly fitted with the first threaded rod, the rear end of the first threaded rod extends to the outside of the cover plate and is threadedly connected to a limit nut, and the front end of the limit nut is tightly fitted with the outside of the cover plate.

[0020] By adopting the above technical solution, the pin block can be prevented from moving by rotating the first threaded rod, and the limiting nut further locks the position of the first threaded rod, ensuring the reliability of the locking state of the traction seat.

[0021] According to the novel material welded lightweight traction seat, the front end of the cover plate is provided with a slot, and the front and rear ends of the slot are respectively connected to the inside and outside of the cover plate.

[0022] By adopting the above technical solution, the slot provides a channel for the insertion of the external traction pin and is a key part for connecting the traction seat and the external traction equipment.

[0023] According to the new material welded lightweight traction seat, the rear end of the slider near the bottom is fixedly connected to a guide rod, and the outer surface of the guide rod is slidably connected to a third fixed plate.

[0024] By adopting the above technical solution, the guide rod can guide the movement of the slider, ensuring the stability and accuracy of the slider when sliding along the pull rod.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0027] Figure 1 This is an overall structural diagram of a new material welded lightweight traction seat according to this utility model;

[0028] Figure 2 This is an internal structural diagram of a new material welded lightweight traction seat according to this utility model;

[0029] Figure 3 This is a support installation diagram for a new type of welded lightweight traction seat made of a novel material according to this utility model.

[0030] Figure 4 This is a diagram of the tie rod buffer structure of a new type of welded lightweight traction seat made of a novel material.

[0031] Legend:

[0032] 1. Support; 2. Cover plate; 3. First rotating shaft; 4. Mounting plate; 5. First bolt; 6. Pull rod; 7. Buffer pad; 8. First spring; 9. Pin block; 10. Second bolt; 11. First fixing plate; 12. Second rotating shaft; 13. Locking hook; 14. Second fixing plate; 15. First threaded rod; 16. Limit nut; 17. Third fixing plate; 18. Fourth fixing plate; 19. Pull ring; 20. Slider; 21. Second threaded rod; 22. Guide rod; 23. Second spring; 24. Slot. Detailed Implementation

[0033] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0034] Reference Figure 1-4 This utility model discloses a new type of welded lightweight traction seat, which includes a support 1. A cover plate 2 is rotatably connected to the outer side of the support 1 via a first rotating shaft 3. A first fixing plate 11 is horizontally fixed to the inner top wall of the cover plate 2 near the front and rear ends. A fourth fixing plate 18 is longitudinally fixed to the inner top wall of the cover plate 2 near both sides. A pull rod 6 is slidably connected to the inner wall of the left fourth fixing plate 18. A first threaded rod 15 is threadedly connected to the inner wall of the right fourth fixing plate 18. A pin block 9 is fixedly connected to the upper end of the pull rod 6 via a second bolt 10. A second fixing plate 14 is fixedly connected between the two first fixing plates 11. A locking hook 13 is rotatably connected to the upper end of the second fixing plate 14 via a second rotating shaft 12. A pull ring 19 is fixedly connected to the left end of the pull rod 6. A buffer mechanism is provided on the left side of the pull rod 6.

[0035] A mounting plate 4 is fixedly connected to the outer side of the cover plate 2. The mounting plate 4 is fixedly connected to the cover plate 2 by the first bolt 5. There are two supports 1, which are horizontally symmetrically distributed. There are two first rotating shafts 3, which correspond one-to-one with the supports 1. A first spring 8 is fixedly connected to the bottom of the pull rod 6. The end of the first spring 8 away from the pull rod 6 is fixedly connected to the second fixed plate 14. A second spring 23 is fixedly connected to the rear end of the locking hook 13. The end of the second spring 23 away from the locking hook 13 is fixedly connected to the first fixed plate 11 near the front end. The front end of the pin block 9 is tightly fitted with the first threaded rod 15. The rear end of the first threaded rod 15 extends to the outer side of the cover plate 2 and is threadedly connected to the limit nut 16. The front end of the limit nut 16 is tightly fitted with the outer side of the cover plate 2. A slot 24 is provided at the front end of the cover plate 2. The front end and the rear end of the slot 24 are respectively connected to the inside and outside of the cover plate 2.

[0036] The buffer mechanism includes:

[0037] The third fixing plate 17 is fixedly connected to the pull rod 6 near the rear end.

[0038] The second threaded rod 21 has its outer surface threadedly connected to the third fixing plate 17.

[0039] The slider 20 is rotatably connected to the second threaded rod 21 at its right end, and the inner wall of the slider 20 is slidably connected to the pull rod 6.

[0040] The buffer pad 7 is fixedly connected to the left end of the slider 20, and the right end of the buffer pad 7 is tightly fitted to the outer surface of the cover plate 2.

[0041] The slider 20 is fixedly connected to a guide rod 22 near the bottom rear end, and the outer surface of the guide rod 22 is slidably connected to the third fixed plate 17.

[0042] Working principle: This new material welded lightweight traction seat innovatively uses low-density austenitic steel as the manufacturing material, which reduces the weight by about 13kg compared with traditional materials, a weight reduction ratio of 11%, achieving lightweight while ensuring structural strength.

[0043] The traction seat is fixed to the supporting body by the support 1. The cover plate 2 rotates relative to the support 1 around the first rotation axis 3, and the angle can be adjusted to connect with the external traction pin. The mounting plate 4 strengthens the connection stability between the cover plate 2 and the external structure by the first bolt 5. The locking hook 13 and the pin block 9 move synchronously. In the stationary state, the locking hook 13 and the pin block 9 support each other. The external traction pin enters the interior of the cover plate 2 through the slot 24 at the front end of the cover plate 2, pushing the locking hook 13 to rotate around the second rotation axis 12. The second spring 23 is stretched. When the traction pin moves into the slot 24, the wedge-shaped pin block 9 moves horizontally so that the locking hook 13 and the pin block 9 completely wrap around the traction pin. A threaded rod 15 is positioned so that its front end is in close contact with the pin 9, preventing the pin 9 from continuing to move under the action of the first spring 8. The pin 9, which is fixed to the pull rod 6 by the second bolt 10, is further restricted after being pressed against, limiting the displacement of the locking hook 13. The limit nut 16 locks the position of the first threaded rod 15 to prevent loosening. At this time, the pull rod 6 remains stable under the elastic force of the first spring 8, ensuring a reliable locking state. At the same time, the second threaded rod 21 is rotated so that the slider 20 drives the buffer pad 7 to make close contact with the outer surface of the cover plate 2. When used next time, the buffer pad 7 reduces the impact of the pin 9 on the first threaded rod 15, reducing wear.

[0044] When unlocking, the pin 9 is pulled outward by the lever 6, that is, the pull ring 19 is pulled to drive the lever 6 to slide to the left, thereby causing the pin 9 to move outward. During the outward movement of the traction pin, the second spring 23 contracts to return the locking hook 13 to its position. The locking hook 13 rotates around the second rotating shaft 12 and disengages from the traction pin, completing the unlocking. At the same time, the first spring 8 is stretched.

[0045] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A novel material welded lightweight traction seat, characterized in that, include: Support (1), the outer side of the support (1) is rotatably connected to a cover plate (2) via a first rotating shaft (3), the top inner wall of the cover plate (2) is horizontally fixedly connected to a first fixing plate (11) near the front and rear ends, the top inner wall of the cover plate (2) is longitudinally fixedly connected to a fourth fixing plate (18) near both sides, the inner wall of the fourth fixing plate (18) on the left side is slidably connected to a pull rod (6), the inner wall of the fourth fixing plate (18) on the right side is threadedly connected to a first threaded rod (15), the upper end of the pull rod (6) is fixedly connected to a pin block (9) via a second bolt (10), the two first fixing plates (11) are fixedly connected to a second fixing plate (14), the upper end of the second fixing plate (14) is rotatably connected to a locking hook (13) via a second rotating shaft (12), the left end of the pull rod (6) is fixedly connected to a pull ring (19), and a buffer mechanism is provided on the left side of the pull rod (6); The buffer mechanism includes: The third fixing plate (17) is fixedly connected to the pull rod (6) near the rear end; The outer surface of the second threaded rod (21) is threadedly connected to the third fixing plate (17); The slider (20) is rotatably connected to the second threaded rod (21) at its right end, and the inner wall of the slider (20) is slidably connected to the pull rod (6); The buffer pad (7) is fixedly connected to the left end of the slider (20) at its left end, and the right end of the buffer pad (7) is tightly fitted to the outer surface of the cover plate (2).

2. The novel material welded lightweight traction seat according to claim 1, characterized in that, An mounting plate (4) is fixedly connected to the outer side of the cover plate (2), and the mounting plate (4) is fixedly connected to the cover plate (2) by a first bolt (5).

3. The novel material welded lightweight traction seat according to claim 1, characterized in that, The number of supports (1) is two and they are horizontally symmetrically distributed. The number of the first rotating shafts (3) is two and they correspond one-to-one with the supports (1).

4. The novel material welded lightweight traction seat according to claim 1, characterized in that, The bottom of the pull rod (6) is fixedly connected to a first spring (8), and the end of the first spring (8) away from the pull rod (6) is fixedly connected to a second fixing plate (14).

5. The novel material welded lightweight traction seat according to claim 1, characterized in that, The rear end of the locking hook (13) is fixedly connected to a second spring (23), and the end of the second spring (23) away from the locking hook (13) is fixedly connected to a first fixing plate (11) near the front end.

6. The novel material welded lightweight traction seat according to claim 1, characterized in that, The front end of the pin (9) is closely fitted with the first threaded rod (15), and the rear end of the first threaded rod (15) extends to the outside of the cover plate (2) and is threadedly connected to a limiting nut (16). The front end of the limiting nut (16) is closely fitted with the outside of the cover plate (2).

7. The novel material welded lightweight traction seat according to claim 1, characterized in that, The front end of the cover plate (2) is provided with a slot (24), and the front end and the rear end of the slot (24) are respectively connected to the inside and outside of the cover plate (2).

8. The novel material welded lightweight traction seat according to claim 1, characterized in that, The slider (20) is fixedly connected to a guide rod (22) near the bottom rear end, and the outer surface of the guide rod (22) is slidably connected to the third fixing plate (17).