Improved traction seat

Abstract

The utility model discloses an improved traction seat, and relates to the technical field of traction seats. The traction seat comprises a traction seat plate and further comprises installation lug plates arranged at the rear ends of the two sides of the bottom of the traction seat plate, a handle is connected to the rear end of one side in the traction seat plate in a penetrating mode, and a locking block is arranged on the inner side of the traction seat plate on one side of the handle. The protection assembly is arranged at the bottom of the traction seat plate, the protection cover plate is connected to the bottom of the traction seat plate in a covering mode during use, meanwhile, the assembly holes are aligned with the fixing screw holes formed in the traction seat plate in a one-to-one mode, and then fastening bolts penetrate through the assembly holes and are inserted into the fixing screw holes to be screwed tightly. The purpose of stably installing the protective cover plate at the bottom of the traction seat plate can be achieved, the protective cover plate is used for isolating and protecting internal parts of the traction seat plate so as to prevent high-speed moving foreign matters thrown up in the running process of a vehicle from damaging the parts of the traction seat or clamping a tension spring of the traction seat, and normal and safe use of the traction seat is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of traction seat technology, and in particular relates to an improved traction seat. Background Technology

[0002] The towing unit is a component used to connect the semi-trailer tractor and the semi-trailer. It also bears the load of the semi-trailer and withstands static and transient loads during vehicle starting, acceleration, deceleration, steering, and braking. Therefore, the towing unit plays a very important role in the semi-trailer.

[0003] An improved traction seat, disclosed in utility model patent application CN220465645U, relates to the field of traction seat technology. It includes a traction seat body, a traction seat rear shell fixedly mounted on the rear outer wall of the traction seat body, a push rod penetrating the lower left outer wall of the traction seat body, a stop block penetrating the bottom outer wall of the traction seat rear shell, and a wedge iron provided on the inner wall of the bottom middle of the traction seat rear shell. This utility model uses the push rod to move the stop block backward, and a pull head pulls out a pull rod to drive the wedge iron to push the wedge block. When the wedge block is engaged with the wedge iron notch, the locking hook rotates, achieving engagement / disengagement. Moving the locking hook drives a swing rod, which in turn drives the wedge block to reset, achieving engagement / disengagement. Rotating the pull rod allows for adjustment of the play in conjunction with the adjusting nut, improving assembly efficiency and reducing after-sales costs. The engagement / disengagement structure and play adjustment mechanism are integrated, simplifying the structure and saving costs. The coupling component automatically engages / disengages the locking hook, eliminating manual operation and improving user convenience. However, in the application of this technical solution, the bottom of the towing seat faces the road surface, and many components inside the towing seat are too exposed. When the vehicle is driving, foreign objects on the road are easily thrown into the towing seat and damaged without any protection. There is a technical problem that the bottom of the towing seat cannot be isolated and protected to ensure the safety of the towing seat. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an improved traction seat, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an improved traction seat, including a traction seat plate, and further comprising: mounting ears on the rear ends of both sides of the bottom of the traction seat plate; a handle passing through the rear end of one side of the traction seat plate; a locking block on the inner side of the traction seat plate on the handle side; a limiting baffle on one side of the bottom of the traction seat plate; a limiting block on the top side of the inner side of the traction seat plate near the rear end; a locking hook on the inner side of the locking block inside the traction seat plate; a rotating shaft on one side of the top side of the inner side of the traction seat plate; and a first tension spring hooked to one side of the locking hook. A second tension spring is attached to the rear end of one side of the block. A first hanging rod is provided on the top side of the inner side of the traction seat plate near the rear end. A second hanging rod is provided on the top side of the inner side of the traction seat plate on the side of the first hanging rod. A protective cover plate is provided at the bottom of the traction seat plate. Mounting holes are provided on both sides of the front end and both sides of the bottom rear end of the protective cover plate. Fastening bolts pass through the interior of the mounting holes. Fixing screw holes are provided on both sides of the front end and both sides of the bottom rear end inside the traction seat plate. A locking and stabilizing component is provided between the rear end of one side of the traction seat plate and one side inside the handle.

[0007] Furthermore, the fixing screw holes are symmetrically arranged at the front end and the rear end of the bottom inside the traction seat plate, and one end of the fastening bolt is inserted into the interior of the fixing screw hole.

[0008] Furthermore, the bottom end of the pivot extends through one side of the inside of the lock hook, and the lock hook can rotate around the pivot as the center.

[0009] Furthermore, one end of the first tension spring is attached to the outside of the second hanging rod, and one end of the second tension spring is attached to the outside of the first hanging rod.

[0010] Furthermore, the locking and stabilizing assembly includes a positioning sleeve, which is disposed at the bottom of the rear end of one side of the traction seat plate. A stabilizing rod passes through the inside of the positioning sleeve, and a return spring is provided outside the stabilizing rod inside the positioning sleeve. A limiting piece is fixedly connected to the outside of the stabilizing rod at the top of the inside of the positioning sleeve, and a through hole is provided on one side inside the handle.

[0011] Furthermore, the limiting piece is annular, and the top end of the stabilizing lever is inserted into the interior of the through hole.

[0012] This utility model has the following beneficial effects:

[0013] This utility model features a protective component at the bottom of the towing seat plate. During use, the protective cover is placed over the bottom of the towing seat plate, aligning the mounting holes with the fixing screw holes on the towing seat plate. Then, fastening bolts are inserted through the mounting holes and into the fixing screw holes to tighten them, thus securing the protective cover to the bottom of the towing seat plate. The protective cover isolates and protects the internal components of the towing seat plate, preventing high-speed moving foreign objects thrown up during vehicle operation from damaging the towing seat components or jamming the towing seat tension spring, ensuring the normal and safe use of the towing seat.

[0014] This invention features a locking and stabilizing component between the rear end of one side of the towing seat plate and one side inside the handle. When not engaging or disengaging the trailer, the return spring pushes the limiting plate to move the stabilizing lever upward and insert it into the through hole inside the handle, thus stabilizing the handle and preventing it from moving uncontrollably and affecting the structural safety of the towing seat. When engaging or disengaging the trailer is required, the driver can pull the stabilizing lever downward and pull the handle normally, making it more operable. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial explosion diagram of the present invention;

[0018] Figure 3 This is a partial bottom view of the structure of this utility model;

[0019] Figure 4 This is a partial sectional view of the structure of this utility model from the side.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Traction seat plate; 2. Handle; 3. Positioning sleeve; 4. Mounting ear plate; 5. Fastening bolt; 6. First tension spring; 7. Locking hook; 8. Fixing screw hole; 9. Limiting baffle; 10. Stabilizing lever; 11. Protective cover plate; 12. Assembly hole; 13. Second tension spring; 14. Locking block; 15. Limiting block; 16. First hanging rod; 17. Second hanging rod; 18. Rotating shaft; 19. Limiting plate; 20. Through hole; 21. Return spring. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 As shown, this utility model is an improved towing seat, including a towing seat plate 1, and further including: mounting ear plates 4 are provided at the rear ends of both sides of the bottom of the towing seat plate 1, through which the towing seat plate 1 can be installed on a semi-trailer tractor; a handle 2 is passed through the rear end of one side of the inside of the towing seat plate 1; a locking block 14 is provided on the inner side of the towing seat plate 1 on the side of the handle 2; a limiting baffle 9 is provided on one side of the bottom of the towing seat plate 1; a limiting block 15 is provided on the top side of the inside of the towing seat plate 1 near the rear end; a locking hook 7 is provided on the inner side of the locking block 14 inside the towing seat plate 1; a rotating shaft 18 is provided on one side of the top side of the inside of the towing seat plate 1; the bottom end of the rotating shaft 18 passes through one side of the inside of the locking hook 7, and the locking hook 7 can rotate with the rotating shaft 18 as the center; a first tension spring 6 is hooked on one side of the locking hook 7; and a second tension spring 6 is hooked on the rear end of one side of the locking block 14. A first hanging rod 16 is provided on the inner top side of the towing seat plate 1 near the rear end. One end of the second tension spring 13 is attached to the outside of the first hanging rod 16. A second hanging rod 17 is provided on the inner top side of the towing seat plate 1 on one side of the first hanging rod 16. One end of the first tension spring 6 is attached to the outside of the second hanging rod 17. When performing the coupling operation, pulling the handle 2 outward will pull the locking block 14 to the right to disengage the locking hook 7. At the same time, the second tension spring 13 will pull the locking hook 7 around the rotating shaft 18 to open it. This will drive the tractor and trailer to move towards each other, so that the towing pin on the trailer is engaged in the interior of the towing seat plate 1 and the locking hook 7 is used to lock the towing pin. At the same time, the second tension spring 13 will pull the locking block 14 to reset and lock the locking hook 7, thus locking the towing pin on the inner side of the towing seat plate 1 to complete the coupling operation. Conversely, the coupling operation can be performed by pulling the handle 2 outward to disengage the trailer.

[0024] As a further implementation of this embodiment, such as Figure 1-4 As shown, a protective cover plate 11 is provided at the bottom of the traction seat plate 1. Mounting holes 12 are provided on both sides of the front end and both sides of the rear end of the bottom of the protective cover plate 11. Fastening bolts 5 pass through the interior of the mounting holes 12. Fixing screw holes 8 are provided on both sides of the front end and both sides of the rear end of the bottom inside the traction seat plate 1. The fixing screw holes 8 are symmetrically arranged at the front end and the rear end of the bottom inside the traction seat plate 1. One end of the fastening bolt 5 is inserted into the interior of the fixing screw hole 8. By covering the bottom of the traction seat plate 1 with the protective cover plate 11 and tightening the fastening bolts 5 through the mounting holes 12 and into the interior of the fixing screw holes 8, the protective cover plate 11 can be securely installed at the bottom of the traction seat plate 1. Thus, the protective cover plate 11 can be used to isolate and protect the internal components of the traction seat plate 1 to prevent high-speed moving foreign objects thrown up during vehicle operation from damaging the traction seat components or jamming the traction seat tension spring, ensuring the normal and safe use of the traction seat.

[0025] When in use, the protective cover plate 11 is placed over the bottom of the traction seat plate 1, and the mounting hole 12 is aligned with the fixing screw hole 8 provided on the traction seat plate 1. Then, the fastening bolt 5 is passed through the mounting hole 12 and inserted into the fixing screw hole 8 and tightened. The protective cover plate 11 can be firmly installed at the bottom of the traction seat plate 1, and the internal components of the traction seat plate 1 are isolated and protected by the protective cover plate 11.

[0026] As a further implementation of this embodiment, such as Figure 1-4 As shown, a locking and stabilizing assembly is provided between the rear end of one side of the towing seat plate 1 and one side inside the handle 2. The locking and stabilizing assembly includes a positioning sleeve 3, which is located at the bottom of the rear end of one side of the towing seat plate 1. A stabilizing rod 10 passes through the inside of the positioning sleeve 3. A return spring 21 is provided outside the stabilizing rod 10 inside the positioning sleeve 3. A ring-shaped limiting piece 19 is fixedly connected to the outside of the stabilizing rod 10 at the top of the positioning sleeve 3. A through hole 20 is provided on one side inside the handle 2. The top end of the stabilizing rod 10 is inserted into the through hole 20. When the trailer is not being attached or detached, the return spring 21 pushes the limiting piece 19 to move the stabilizing rod 10 upward and insert it into the through hole 20 inside the handle 2, thereby stabilizing the handle 2 and preventing the handle 2 from moving uncontrollably and affecting the structural safety of the towing seat. Correspondingly, the stabilizing rod 10 can be pulled down and removed from the through hole 20 to perform the attachment or detachment operation.

[0027] When no trailer is being attached or detached, the return spring 21 pushes the limiting plate 19 to move the stabilizing lever 10 upward and insert it into the through hole 20 inside the handle 2 to stabilize the handle 2 and prevent it from moving uncontrollably. When the trailer is to be attached or detached, the driver can pull the stabilizing lever 10 downward and pull the handle 2 normally.

[0028] Working principle: When using the towing seat, the protective cover plate 11 is attached to the bottom of the towing seat plate 1, and the mounting hole 12 is aligned with the fixing screw hole 8 on the towing seat plate 1. Then, the fastening bolt 5 is passed through the mounting hole 12 and inserted into the fixing screw hole 8 and tightened. This securely installs the protective cover plate 11 at the bottom of the towing seat plate 1. After installing the towing seat on the trailer tractor through the connecting ear plate 4, the stabilizing lever 10 is pulled downwards out of the through hole 20. Pulling the handle 2 outwards pulls the locking block 14 to the right to disengage the locking hook 7. When the second tension spring 13 pulls the locking hook 7 with the rotating shaft 18 as the center, it opens, driving the tractor and trailer to move towards each other, so that the towing pin on the trailer is engaged inside the towing seat plate 1 and the locking hook 7 is used to lock the towing pin. At the same time, the second tension spring 13 pulls the locking block 14 to reset and lock the locking hook 7, thus locking the towing pin inside the towing seat plate 1 to complete the attachment operation. Conversely, the unattachment operation can be performed. During the tractor's operation, the protective cover plate 11 is used to isolate and protect the internal components of the towing seat plate 1 to avoid damage and affect its normal use.

[0029] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. An improved traction seat, comprising a traction seat plate (1), characterized in that, Also includes: The traction seat plate (1) has mounting ears (4) on both sides of its bottom rear end. A handle (2) is threaded through the rear end of one side of the traction seat plate (1). A locking block (14) is provided on the inner side of the traction seat plate (1) on the side of the handle (2). A limiting baffle (9) is provided on one side of the bottom of the traction seat plate (1). A limiting block (15) is provided on the top side of the inner side of the traction seat plate (1) near the rear end. A locking hook (7) is provided on the inner side of the locking block (14) inside the traction seat plate (1). A rotating shaft (18) is provided on one side of the top side of the inner side of the traction seat plate (1). A first tension spring (6) is attached to one side of the locking hook (7). A second tension spring (6) is attached to the rear end of one side of the locking block (14). Two tension springs (13), a first hanging rod (16) is provided on the inner top side of the traction seat plate (1) near the rear end, a second hanging rod (17) is provided on the inner top side of the traction seat plate (1) on the side of the first hanging rod (16), a protective cover plate (11) is provided at the bottom of the traction seat plate (1), and mounting holes (12) are provided on both sides of the front end and both sides of the bottom rear end of the protective cover plate (11), fastening bolts (5) pass through the inside of the mounting holes (12), fixing screw holes (8) are provided on both sides of the front end and both sides of the bottom rear end inside the traction seat plate (1), and a locking and stabilizing component is provided between the rear end of one side of the traction seat plate (1) and one side inside the handle (2).

2. The improved traction seat according to claim 1, characterized in that, The fixing screw holes (8) are symmetrically arranged at the front end and the rear end of the bottom inside the traction seat plate (1), and one end of the fastening bolt (5) is inserted into the interior of the fixing screw holes (8).

3. An improved traction seat according to claim 1, characterized in that, The bottom end of the pivot (18) passes through one side of the inside of the hook (7), and the hook (7) can rotate with the pivot (18) as the center.

4. An improved traction seat according to claim 1, characterized in that, One end of the first tension spring (6) is attached to the outside of the second hanging rod (17), and one end of the second tension spring (13) is attached to the outside of the first hanging rod (16).

5. An improved traction seat according to claim 1, characterized in that, The locking and stabilizing assembly includes a positioning sleeve (3), which is located at the bottom of the rear end of the traction seat plate (1) on one side. A stabilizing rod (10) passes through the inside of the positioning sleeve (3). A return spring (21) is provided outside the stabilizing rod (10) inside the positioning sleeve (3). A limiting piece (19) is fixedly connected to the outside of the stabilizing rod (10) at the top inside the positioning sleeve (3). A through hole (20) is provided on one side inside the handle (2).

6. An improved traction seat according to claim 5, characterized in that, The limiting piece (19) is annular, and the top end of the stabilizing lever (10) is inserted into the interior of the through hole (20).

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