A traction seat that can be moved in all directions

By utilizing a towing seat that can move in all directions, and combining control components, moving components, fixing components, and limiting components, the problem of novice drivers having to make multiple adjustments when connecting the tractor and trailer is solved, achieving a fast and stable connection.

CN116985924BActive Publication Date: 2025-11-11SHANDONG SHENCHI HEAVY IND MASCH CO LTD
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Patent Information

Application Number
CN202311180480.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-13
Publication Date
2025-11-11
Estimated Expiration
2043-09-13

AI Technical Summary

Technical Problem

Novice drivers often need to adjust the position of the tractor unit multiple times when connecting the tractor and trailer due to lack of experience, which increases the connection time.

Method used

The system employs a omnidirectional traction seat, which combines control, movement, fixing, and limiting components to adjust and fix the position of the connecting seat, ensuring centerline alignment and reducing connection time.

Benefits of technology

It improves the convenience and stability of connection and reduces the time required to connect the tractor and trailer.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a omnidirectional movable towing seat, relating to the field of towing seat technology. It includes a connecting plate with a connecting seat for connection to a trailer. A control component is mounted on the connecting plate for fixing the position of the connecting seat. A moving component is also mounted on the connecting plate for moving the connecting seat. A fixing component is mounted on the control component for fixing the position of the moving component. A limiting component is mounted on the control component for limiting the movement of the moving component. The omnidirectional movable towing seat disclosed in this invention allows for relative adjustment of the centerlines of the two vehicles during connection, thereby increasing the centerline offset distance when the tractor and trailer are connected, facilitating connection, and ensuring stability during connection, thus reducing the connection time between the tractor and trailer.
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Description

Technical Field

[0001] This invention relates to the field of traction seat technology, and more particularly to a traction seat that can move in all directions. Background Technology

[0002] The drawbar is the connecting device between the semi-trailer tractor and the semi-trailer. It can effectively ensure the connection between the semi-trailer tractor and the semi-trailer and is a very important device in the use of the semi-trailer tractor and the semi-trailer. The drawbar plays the role of towing the semi-trailer and bearing the load of the semi-trailer. During the operation of the semi-trailer tractor and the semi-trailer, it can withstand various motion conditions and impacts, and can effectively ensure the driving safety of the semi-trailer.

[0003] During the connection process between the tractor and the trailer, the center lines of the tractor and the semi-trailer should be kept in sync, and the offset between the center lines of the two vehicles should be limited to less than 40 mm. Since the towing seat and towing pin are fixed to the tractor and the trailer respectively, the driver adjusts the tractor based on experience during connection, thereby adjusting the offset distance between the center lines of the two vehicles. As a result, novice drivers need to adjust the position of the tractor multiple times during connection due to lack of experience, which increases the connection time between the tractor and the trailer. Summary of the Invention

[0004] This invention discloses a omnidirectional movable towing seat, which aims to solve the problem that the towing seat and towing pin are fixed to the tractor and trailer respectively, which makes it necessary for novice drivers to adjust the position of the tractor multiple times when connecting due to lack of experience, thus increasing the connection time between the tractor and trailer.

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

[0006] A towing seat capable of omnidirectional movement includes a connecting plate, wherein the connecting plate is provided with a connecting seat for connecting to a trailer, characterized in that it further includes:

[0007] A control component is mounted on the connecting plate, and the control component is used to fix the position of the connecting seat;

[0008] A movable component is disposed on the connecting plate, the movable component being used to move the position of the connecting seat;

[0009] A fixing component is disposed on the control component, the fixing component being used to fix the position of the moving component;

[0010] A limiting component is disposed on the control component, and the limiting component is used to limit the movement component.

[0011] By incorporating moving, controlling, fixing, and limiting components, the center axis deviation range is increased when the trailer is connected to the tractor, improving the ease of connection and reducing the time required to connect the tractor and trailer.

[0012] In a preferred embodiment, the connecting plate is C-shaped, with grooves at both ends, a through groove on the outer side, and multiple guide grooves on the top of the connecting plate. The guide grooves are inverted T-shaped. The connecting plate is provided with a connecting block, and also with a support component for supporting the control component and a reset component for resetting the connecting seat.

[0013] The connecting plate can be moved as a whole by using the through slots and grooves inside, which allows for position adjustment according to trailers of different sizes, increasing compatibility during use.

[0014] In a preferred embodiment, the support assembly includes multiple fixing plates connected to a connecting plate, and the fixing plates have limit grooves formed on them.

[0015] By using the combination of the fixing plate and the limiting groove, the angle of the connecting shaft and the rotating column is fixed while supporting the connecting shaft, thereby realizing the alternating limiting of the locking block and the rack, avoiding the movement of the adjusted support plate, which would cause the center line of the traction seat to deviate, and ensuring stability during use.

[0016] In a preferred embodiment, the control component includes a connecting shaft, which is cylindrical and rotates inside a fixed plate. A rotating column is provided on the outer side of the connecting shaft and is movably connected to a connecting block. Multiple slots are provided on the outer side of the rotating column and penetrate the connecting block. Fixed columns are provided at both ends of the connecting shaft, and arc-shaped grooves are provided inside each fixed column. A rotating component for limiting the angle of the fixed column is provided at one end of the connecting shaft.

[0017] By using the cooperation of the fixed column, connecting shaft, and rotating column to pull down the rack, the rack engages with the sliding block, thereby fixing the position of the support plate and preventing it from shifting after movement, thus ensuring stability during use.

[0018] In a preferred embodiment, the rotating assembly includes a fixed disk connected to a connecting shaft. A handle is provided on the outer side of the fixed disk. A limiting post is provided at one end of the handle relative to the fixed plate, and the limiting post is adapted to a limiting groove. A second spring is provided on the outer side of the limiting post.

[0019] The fixed plate and the limiting column work together to fix the angle of the connecting shaft after rotation, so as to prevent the supporting plate from shifting when the connecting shaft rotates during use and ensure the stability of the equipment during use.

[0020] In a preferred embodiment, the limiting assembly includes two fixing covers distributed on both sides of the connecting plate and connected to the connecting plate. The fixing covers have a hollow structure, and a sliding plate is provided inside the fixing cover. The sliding plate is long and plate-shaped, and a connecting rod is provided on both sides of the sliding plate. A baffle and a sliding rod are respectively provided at both ends of the connecting rod. A plurality of first springs are provided between the baffle and the sliding plate. A rack is provided on one side of the opposite surface of the sliding plate, and the sliding rod slides inside the arc-shaped groove.

[0021] The sliding block is fixed in position by the cooperation of the sliding plate and the rack, so as to prevent the sliding block from moving after adjustment. At the same time, the first spring cooperates with the sliding plate to release the limit when the sliding block moves, ensuring flexibility during position adjustment.

[0022] In a preferred embodiment, the fixing component includes multiple fixing blocks connected to the connecting plate, and the fixing blocks are distributed on both sides of the connecting block. The fixing blocks are provided with a third spring and a guide plate inside, and each guide plate has a locking block on its opposite side, and the locking block corresponds to a locking slot.

[0023] By using the locking block in the slot, the position of the connecting block and the support plate is fixed after the connecting block has moved, preventing the support plate from shifting after connection, which would prevent the tractor from connecting with the trailer and ensure stability during use.

[0024] In a preferred embodiment, the moving component includes a support plate with a plurality of sliding blocks at its bottom. The sliding blocks correspond to guide grooves and have the same shape as the guide grooves. The support plate is connected to a connecting seat. Each sliding block has a toothed groove on the side opposite to the rack, and the toothed groove corresponds to the rack. The support plate is connected to the connecting block.

[0025] The sliding block and the guide groove work together to move the support plate. The guide groove and the groove are perpendicular to each other, so that the plate can move in multiple directions according to the usage requirements.

[0026] In a preferred embodiment, the reset assembly includes multiple support bars connected to a connecting plate, each support bar having a connecting post at its top, and the connecting post being connected to the support plate.

[0027] The support plate is powered by the cooperation of the support bars and connecting columns, ensuring accurate repositioning.

[0028] In a preferred embodiment, the fixed disc is provided with a telescopic handle.

[0029] The telescopic handle increases the torque when rotating the fixed plate, making it easier to rotate the connecting shaft. At the same time, the telescopic handle can be stored when not in use to prevent accidental activation that could release the limit switch, thus ensuring stability during use.

[0030] As can be seen from the above, the present invention utilizes a omnidirectionally movable towing seat to adjust the relative centerlines of the two vehicles during connection, thereby increasing the centerline offset distance when the tractor and trailer are connected, facilitating connection, and ensuring stability during connection, thus reducing the connection time between the tractor and trailer. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the control component for a omnidirectionally movable traction seat proposed in this invention.

[0032] Figure 2 This is a schematic diagram of the overall structure of a directional movable traction seat proposed in this invention.

[0033] Figure 3 This is an enlarged view of the connecting plate of a directional movable traction seat proposed in this invention.

[0034] Figure 4 This invention proposes a directional movable traction seat. Figure 1 Enlarged view of section A in the middle.

[0035] Figure 5 This is an enlarged view of the limiting component of a directional movable traction seat proposed in this invention.

[0036] Figure 6 This is an enlarged view of the control component of a omnidirectionally movable traction seat proposed in this invention.

[0037] Figure 7 This is an enlarged view of the fixing column of a directional movable traction seat proposed in this invention.

[0038] Figure 8 This is a partial cross-sectional view of the rotating assembly of a directional traction seat proposed in this invention.

[0039] In the diagram: 1. Connecting plate; 101. Groove; 102. Through groove; 103. Guide groove; 105. Connecting block; 2. Limiting assembly; 201. Fixing cover; 202. Sliding plate; 203. Connecting rod; 204. Rack; 205. Baffle; 206. First spring; 207. Sliding rod; 3. Support assembly; 301. Fixing plate; 302. Limiting groove; 4. Connecting seat; 5. Moving assembly; 501. Support plate; 502. Sliding rod 6. Moving block; 7. Control assembly; 8. Fixed column; 9. Connecting shaft; 10. Rotating column; 11. Slot; 12. Arc groove; 13. Rotating assembly; 14. Fixed plate; 15. Handle; 16. Second spring; 17. Limiting column; 18. Fixing assembly; 19. Fixed block; 10. Third spring; 11. Guide plate; 12. Slot; 13. Reset assembly; 14. Support bar; 15. Connecting column. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0041] Reference Figures 1-8 A towing seat that can move in all directions includes a connecting plate 1, on which a connecting seat 4 for connecting to a trailer is provided;

[0042] Control component 6 is mounted on connecting plate 1 and is used to fix the position of connecting seat 4.

[0043] The movable component 5 is disposed on the connecting plate 1, and the movable component 5 is used to move the connecting seat 4.

[0044] The fixing component 8 is mounted on the control component 6 and is used to fix the position of the moving component 5.

[0045] Limiting component 2, mounted on control component 6, limits the movement of component 5. During use, component 5 first adjusts the position of connecting seat 4, aligning its centerline with the trailer's centerline. This avoids the need to move the tractor for adjustment, improving connection convenience. Simultaneously, control component 6, in conjunction with rotating component 7, fixing component 8, and limiting component 2, alternately limits component 5, preventing positional movement and ensuring stability. After connection, control component 6, in conjunction with rotating component 7, releases the limiting component 2's restriction on component 5. Then, reset component 9 pushes component 5 back to its original position, preventing misalignment between the trailer and tractor's centerlines and ensuring safety. Finally, fixing component 8 secures component 5, preventing positional movement during traction and ensuring stability.

[0046] Reference Figures 2-3 In a preferred embodiment, the connecting plate 1 is C-shaped, with grooves 101 at both ends and a through groove 102 on the outer side. Multiple guide grooves 103, each in an inverted T-shape, are provided on the top of the connecting plate 1. A connecting block 105 is also provided on the connecting plate 1. Furthermore, a support component 3 for supporting the control component 6 and a reset component 9 for resetting the connecting seat 4 are also provided on the connecting plate 1. During use, the connecting plate 1 is connected to the tractor. When the connecting plate 1 needs to be moved, the grooves 101 guide the direction of movement, ensuring stability during adjustment. Simultaneously, the through grooves 102 adjust the position. The grooves 101 and guide grooves 103 are perpendicular to each other, allowing for multi-directional adjustment of the connecting seat 4 through the grooves 101 and guide grooves 103 during use, increasing the ease of connection.

[0047] Reference Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 8 In a preferred embodiment, the support component 3 includes multiple fixing plates 301 connected to the connecting plate 1. Each fixing plate 301 has a limit groove 302. The fixing plate 301 provides support for the control component 6 and, in conjunction with the rotating component 7, limits the control component 6 to ensure stability during adjustment.

[0048] Reference Figures 1-4 , Figures 6-8In a preferred embodiment, the control component 6 includes a connecting shaft 602, which is cylindrical and rotates inside the fixed plate 301. A rotating column 603 is provided on the outer side of the connecting shaft 602, and the rotating column 603 is movably connected to the connecting block 105. Multiple slots 604 are provided on the outer side of the rotating column 603, and the slots 604 penetrate the connecting block 105. Fixed columns 601 are provided at both ends of the connecting shaft 602. Arc-shaped grooves 605 are provided inside the fixed columns 601. A rotating component 7 for angular limiting of the fixed column 601 is provided at one end of the connecting shaft 602. The arc-shaped grooves 605 and the centers of the fixed columns 601 are intersected, so that when the fixed columns 601 rotate, the control limiting component 7 moves in opposite directions or in the opposite direction.

[0049] Reference Figures 1-3 , Figure 6 , Figure 8 In a preferred embodiment, the rotating assembly 7 includes a fixed disk 701 connected to a connecting shaft 602. A handle 702 is provided on the outer side of the fixed disk 701. A limiting post 704 is provided at one end of the handle 702 near the fixed plate 301, and the limiting post 704 is adapted to the limiting groove 302. A second spring 703 is provided on the outer side of the limiting post 704. The handle 702 is convenient for the operator to hold. While the fixed post 601 is rotated by the fixed disk 701, the position of the limiting post 704 is changed, so that the limiting post 704 cooperates with the limiting groove 302 to fix the fixed post 601 at different angles, ensuring stability during use. While fixing the fixed post 601, the second spring 703 provides tension to prevent the limiting post 704 from slipping due to vibration.

[0050] Reference Figures 1-3 , Figure 5In a preferred embodiment, the limiting component 2 includes two fixing covers 201, which are distributed on both sides of the connecting plate 1 and connected to the connecting plate 1. The fixing covers 201 have a hollow structure, and a sliding plate 202 is provided inside the fixing cover 201. The sliding plate 202 is long and plate-shaped, and a connecting rod 203 is provided on both sides of the sliding plate 202. A baffle 205 and a sliding rod 207 are respectively provided at both ends of the connecting rod 203. A plurality of first springs 206 are provided between the baffle 205 and the sliding plate 202. A rack 204 is provided on one side of the opposite side of the sliding plate 202. The sliding rod 207 slides inside the arc-shaped groove 605. The sliding plate 202 cooperates with the fixing cover 201 to engage the rack 207. The moving component 5 is guided by the direction of movement of component 4. The connecting rod 203 slides inside the sliding plate 202. When the moving component 5 moves, the fixed column 601 is rotated first. As a result, the sliding rod 207, guided by the arc groove 605, pulls the sliding plate 202 and the baffle 205 to move towards each other through the connecting rod 203. This causes the rack 204 to fix the position of the moving component 5. When the moving component 5 moves, it pushes the sliding plate 202 and the rack 204 to expand outward, thereby releasing the fixation of the position of the moving component 5. After the movement is completed, the sliding plate 202 and the connecting rod 203 are reset under the push of the first spring 206, thereby limiting the moving component 5 again and ensuring stability during use. The connecting rod 203 and the sliding plate 202 can slide relative to each other. The connecting rod 203 is fixedly connected to the baffle 205. The connecting rod 203 drives the baffle 205 to move, and then drives the sliding plate 202 to move through the first spring 206. This can ensure that the rack 204 and the sliding block 502 maintain sufficient clamping force, and can also avoid damage to the equipment.

[0051] Reference Figure 1 , Figure 3 , Figure 4In a preferred embodiment, the fixing component 8 includes a plurality of fixing blocks 801 connected to the connecting plate 1, and the fixing blocks 801 are distributed on both sides of the connecting block 105. A third spring 802 and a guide plate 803 are provided inside each fixing block 801. A locking block 804 is provided on the opposite side of each guide plate 803, and the locking block 804 corresponds to a locking slot 604. The third spring 802 provides support for the locking block 804 to ensure stability during use. When the connecting shaft 602 rotates, it drives the rotating column 603 to rotate, thereby using the rotating column 603 to move the locking block 804 from the connecting block. The internal extension of 105 releases the locking block 804 from limiting the moving component 5, facilitating the position adjustment of the connecting seat 4. During reset, the resetting component 9 drives the moving component 5 to move in the opposite direction. Simultaneously, the connecting block 105 pushes the locking block 804 to move in the opposite direction, increasing the spacing between the locking blocks 804 and preventing the locking block 804 from interfering with the connecting block 105. When the slot 604 aligns with the locking block 804, the locking block 804 is inserted into the slot 604 under the push of the third spring 802, thereby limiting the connection block 105 and the moving component 5 and ensuring stability during use.

[0052] Reference Figure 2 , Figure 3 In a preferred embodiment, the moving component 5 includes a support plate 501. The bottom of the support plate 501 is provided with a plurality of sliding blocks 502. The sliding blocks 502 correspond to the guide grooves 103 and have the same shape as the guide grooves 103. The support plate 501 is connected to the connecting seat 4. Each sliding block 502 has a toothed groove on the side opposite to the rack 204 and the toothed groove corresponds to the rack 204. The support plate 501 is connected to the connecting block 105. The guide grooves 103 guide the sliding blocks 502 and restrict the position of the sliding blocks 502 at the same time to prevent the sliding blocks 502 from slipping out of the guide grooves 103 during use. At the same time, the toothed grooves cooperate with the rack 204 to fix the position of the support plate 501 to ensure stability during use.

[0053] Reference Figure 3 In a preferred embodiment, the reset assembly 9 includes a plurality of support bars 901, which are connected to the connecting plate 1. Each support bar 901 has a connecting post 902 at its top, and the connecting post 902 is connected to the support plate 501. A hydraulic push rod is provided inside the support bar 901 to provide power to the connecting post 902, thereby ensuring that the support plate 501 and the connecting seat 4 can be accurately reset.

[0054] Reference Figures 1-3 , Figure 6 , Figure 8 In a preferred embodiment, the fixed disk 701 is provided with a telescopic handle, which can increase the rotation torque during use and facilitate the rotation of the connecting shaft 602.

[0055] Working principle: When connecting the tractor and trailer, firstly, rotate the connecting shaft 602. Simultaneously, the rotating column 603 and the fixed column 601 rotate. As the rotating column 603 rotates, it pushes the locking block 804 out of the connecting block 105, thus releasing the restriction on the connecting block 105 and the support plate 501. This facilitates the adjustment of the positions of the support plate 501 and the connecting seat 4, aligning the center line of the connecting seat 4 with the towing pin and shortening the connection time. Simultaneously, as the fixed column 601 rotates, the arc-shaped groove 605 inside the fixed column 601 guides the sliding rods 207 and connecting rods 203 on both sides to pull the rack 204 and sliding plate 202 towards each other. This causes the rack 204 to engage with the sliding block 502, thereby restricting the position of the support plate 501 and preventing it from being subjected to [unspecified force] after adjustment. The vibration causes displacement, and the connecting shaft 602 is finally limited by the cooperation of the limiting post 704 and the limiting groove 302 to ensure stability during the limiting. After the connection is completed, the connecting shaft 602 is rotated in the reverse direction. When the connecting shaft 602 rotates in the reverse direction, the arc groove 605 inside the fixing post 601 guides the sliding rod 207 to slide. At the same time, the connecting rod 203 pushes the sliding plates 202 and the rack 204 on both sides to expand outward, so that the rack 204 separates from the sliding block 502. During the reverse rotation of the connecting shaft 602, the rotating post 603 is driven to rotate again, so that the slot 604 is reset. Finally, the hydraulic rod inside the support bar 901 pushes the support plate 501 and the connecting seat 4 to the center of the tractor through the support bar 901. At the same time, the locking block 804 is inserted into the slot 604, thereby fixing the position of the connecting block 105 and the support plate 501 to ensure stability during use.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A omnidirectionally movable towing seat, comprising a connecting plate (1), wherein the connecting plate (1) is provided with a connecting seat (4) for connecting to a trailer, characterized in that, Also includes: A control component (6) is disposed on the connecting plate (1), and the control component (6) is used to fix the position of the connecting seat (4); A movable component (5) is disposed on the connecting plate (1), and the movable component (5) is used to move the connecting seat (4) in position; A fixing component (8) is disposed on the control component (6), the fixing component (8) being used to fix the position of the moving component (5); A limiting component (2) is provided on the control component (6). The limiting component (2) is used to limit the movement component (5). The connecting plate (1) is C-shaped. Both ends of the connecting plate (1) are provided with grooves (101). The outer side of the connecting plate (1) is provided with through grooves (102). The top of the connecting plate (1) is provided with multiple guide grooves (103). The guide grooves (103) are inverted T-shaped. The connecting plate (1) is provided with connecting blocks (105). The control component (6) includes a connecting shaft (602). The connecting shaft (602) is cylindrical. The connecting shaft (602) rotates inside the fixed plate (301). The outer side of the connecting shaft (602) is provided with a rotating column (603). 603) is movably connected to the connecting block (105). The rotating column (603) has multiple slots (604) on its outer side, and the slots (604) pass through the connecting block (105). The connecting shaft (602) has fixed columns (601) at both ends. The fixed columns (601) have arc-shaped grooves (605) inside. The connecting shaft (602) has a rotating assembly (7) at one end for limiting the angle of the fixed columns (601). The limiting assembly (2) includes two fixed covers (201). The fixed covers (201) are distributed on both sides of the connecting plate (1) and are connected to the connecting plate (1). The fixed covers (201) have a hollow structure. The fixed covers (201) have multiple slots (604) on their outer side, and the slots (604) pass through the connecting block (105). The connecting shaft (602) has fixed columns (601) at both ends, and the fixed columns (601) have arc-shaped grooves (605) inside. A sliding plate (202) is provided, which is long and plate-shaped. Connecting rods (203) are provided on both sides of the sliding plate (202). Baffles (205) and sliding rods (207) are provided at both ends of the connecting rods (203). Multiple first springs (206) are provided between the baffles (205) and the sliding plate (202). A rack (204) is provided on one side of the opposite surface of the sliding plate (202). The sliding rods (207) slide inside the arc groove (605). The fixing component (8) includes multiple fixing blocks (801). The fixing blocks (801) are connected to the connecting plate (1) and are distributed on both sides of the connecting block (105). The fixing blocks (801) are all... The moving component (5) includes a third spring (802) and a guide plate (803). Each side of the guide plate (803) is provided with a locking block (804), and the locking block (804) corresponds to the locking groove (604). The moving component (5) includes a support plate (501). The bottom of the support plate (501) is provided with multiple sliding blocks (502). The sliding blocks (502) correspond to the guide groove (103), and the sliding blocks (502) and the guide groove (103) have the same shape. The support plate (501) is connected to the connecting seat (4). Each sliding block (502) has a toothed groove on the side opposite to the rack (204), and the toothed groove corresponds to the rack (204). The support plate (501) is connected to the connecting block (105).

2. The omnidirectionally movable traction seat according to claim 1, characterized in that, The connecting plate (1) is also provided with a support component (3) for providing support for the control component (6) and a reset component (9) for resetting the connecting seat (4).

3. A directionally movable traction seat according to claim 2, characterized in that, The support component (3) includes multiple fixing plates (301), which are connected to the connecting plate (1). Each fixing plate (301) has a limit groove (302).

4. The omnidirectionally movable traction seat according to claim 1, characterized in that, The rotating assembly (7) includes a fixed plate (701), which is connected to a connecting shaft (602). A handle (702) is provided on the outside of the fixed plate (701). A limiting post (704) is provided at one end of the handle (702) relative to the fixed plate (301), and the limiting post (704) is adapted to the limiting groove (302). A second spring (703) is provided on the outside of the limiting post (704).

5. A directionally movable traction seat according to claim 2, characterized in that, The reset assembly (9) includes multiple support bars (901), which are connected to the connecting plate (1). Each support bar (901) has a connecting post (902) at its top, and the connecting post (902) is connected to the support plate (501).

6. A directionally movable traction seat according to claim 4, characterized in that, The fixed plate (701) is equipped with a telescopic handle inside.

Citation Information

Patent Citations

  • Traction seat for combined trailer

    CN211001599U

  • Traction pin for combined trailer

    CN211001600U