Traction seat

Abstract

The utility model discloses a traction seat which comprises a support, a seat cover plate, a lubricating grease groove, a locking assembly, a warning label and a mounting hole. The seat cover plate is connected above the support, a U-shaped groove is formed in one side of the seat cover plate, and a wear-resistant ring is arranged on an inner arc opening of the U-shaped groove; the lubricating grease groove is formed in the upper surface of the seat cover plate and located around the U-shaped groove. The locking assembly is arranged between the support and the seat cover plate, is provided with a pull rod, and comprises a lock hook and a wedge block; the lock hook is movably arranged on the support through a pin shaft and a spring, and an arc opening of the lock hook corresponds to an inner arc opening of the U-shaped groove; the wedge block is arranged below the lock hook in a sliding mode and used for locking the position of the lock hook, and the pull rod is connected with the wedge block. The warning label is arranged on the side face of the pull rod and used for warning the part replacement period of the locking assembly according to the abrasion degree. The mounting holes are formed in the upper surface of the seat cover plate and used for fixedly mounting tires, and the advantages of safety and stability are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile traction equipment, and particularly relates to a traction seat. Background Art

[0002] The fifth wheel is a load-bearing component used by a tractor to tow a trailer. It has the function of engaging and locking with the trailer's towing pin through a locking mechanism, and can transmit horizontal and vertical forces between the tractor and the trailer. Its main function is to connect the tractor and the trailer to ensure that the trailer can travel normally under the driving force of the tractor.

[0003] When the fifth wheel is engaged with the towing pin, it is in the locked state, which means that the lock hook and wedge block lock the trailer towing pin, the drawbar is in the retracted state, and the safety lock locks the drawbar. During use, the wear ring, lock hook and trailer towing pin will continue to rub. When the tractor is separated from the towing pin, it is in the unhooked state, and the drawbar is in the pulled-out state. If it is not checked in time, it is easy to cause the trailer to unhook. If the change in the drawbar position is only observed visually, the error will be very large, so it is particularly important to determine the range of the change in the drawbar position.

[0004] The spare tire is installed on the fifth wheel when the tractor leaves the factory or is in towing state. The spare tire is conventionally tied to the fifth wheel using an elastic bandage, which is easy to fall off and unsightly.

[0005] When the trailer is locked, it is in close contact with the fifth wheel. In order to avoid friction and wear between them, grease is usually applied to the top cover of the fifth wheel. The top cover is flat, and the grease applied on the top cover will quickly be lost due to friction. Utility Model Content

[0006] In view of the above-mentioned problems, the purpose of the utility model is to provide a fifth wheel.

[0007] The technical solution of the utility model is: a traction seat, comprising:

[0008] Support;

[0009] A seat cover plate, connected and arranged above the support, and a U-shaped groove is provided on one side of the seat cover plate;

[0010] A grease groove is provided on the upper surface of the seat cover plate, the grease groove is located around the U-shaped groove, and the grease groove is filled with grease;

[0011] A locking assembly is arranged between the support and the seat cover, and the locking assembly has a pull rod;

[0012] A warning label, arranged on the side of the pull rod, the warning label is used to warn the replacement cycle of the components of the locking assembly according to the degree of wear;

[0013] A mounting hole is provided on the upper surface of the seat cover plate, and the mounting hole is used for fixing and mounting the tire.

[0014] Furthermore, a wear-resistant ring is provided on the inner arc opening of the U-shaped groove.

[0015] Furthermore, the locking assembly comprises:

[0016] A lock hook is movably arranged on the support through a pin shaft and a spring, and the arc opening of the lock hook corresponds to the inner arc opening of the U-shaped groove;

[0017] A wedge block is slidably arranged below the locking hook, and the wedge block is used to lock the position of the locking hook. The pull rod is connected to the wedge block and is used to pull the wedge block to move.

[0018] Furthermore, a traction seat handle is provided on the side of the seat cover plate, and the traction seat handle is used to limit the position of the pull rod.

[0019] Furthermore, the area of ​​the grease groove occupies 10%-30% of the upper surface area of ​​the seat cover plate.

[0020] The working principle of the utility model is as follows: when the spare tire is in the detached state, the spare tire is fixed on the seat cover through the mounting hole; when locking and hanging, grease is applied to the seat cover and the grease groove is filled with grease, the traction seat dial is opened, the pull rod is pulled to move the wedge block and open the U-shaped groove, the pin shaft at the bottom of the car body is inserted into the U-shaped groove and then enters the lock hook, the wedge block is reset to lock the lock hook, and since the pull rod rubs against the side of the seat cover when being pulled, the wear degree of the wear-resistant ring, the lock hook and the wedge block can be judged according to the wear degree of the warning label on the pull rod, and they can be replaced when necessary to avoid the risk of detachment.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. The warning label can clearly show whether the wear-resistant ring, lock hook and wedge need to be replaced, so as to avoid the risk of detachment caused by the failure to accurately draw attention and reminder when the wear-resistant ring, lock hook and wedge are severely worn.

[0023] 2. Adding a grease groove on the seat cover can extend the use time of grease, reduce the wear of the seat cover, and avoid long-term wear between the seat cover and the trailer, which may cause serious grease loss and severe wear of the seat cover.

[0024] 3. Adding mounting holes on the seat cover allows the spare tire to be securely mounted on the traction seat, which is both safe and beautiful, and solves the problem of the spare tire on the traction seat easily falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0026] Among them, 1-seat cover, 11-U-shaped groove, 12-wear-resistant ring, 2-grease groove, 3-locking assembly, 31-pull rod, 32-lock hook, 33-wedge block, 4-warning label, 5-mounting hole, 6-traction seat handle. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 , the specific implementation methods of the utility model are described in detail. In the description of the utility model, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0029] It should be noted that the circuit connections involved in the present invention all adopt conventional circuit connection methods and do not involve any innovation.

[0030] Example: Figure 1 As shown, a traction seat includes a support, a seat cover 1, a grease groove 2, a locking assembly 3, a warning label 4 and a mounting hole 5. Among them:

[0031] The seat cover plate 1 is connected and arranged above the support, a U-shaped groove 11 is provided on one side of the seat cover plate 1, a wear-resistant ring 12 is provided on the inner arc opening of the U-shaped groove 11, and the area of ​​the grease groove 2 occupies 10%-30% of the upper surface area of ​​the seat cover plate 1;

[0032] The grease groove 2 is arranged on the upper surface of the seat cover plate 1, the grease groove 2 is located around the U-shaped groove 11, and the grease groove 2 is filled with grease;

[0033] The locking assembly 3 is arranged between the support and the seat cover plate 1, and the locking assembly 3 has a pull rod 31, and the locking assembly 3 includes a lock hook 32 and a wedge block 33; the lock hook 32 is movably arranged on the support through a pin shaft and a spring, and the arc opening of the lock hook 32 corresponds to the inner arc opening of the U-shaped groove 11; the wedge block 33 is slidably arranged below the lock hook 32, and the wedge block 33 is used to lock the position of the lock hook 32, and the pull rod 31 is connected to the wedge block 33, and is used to pull the wedge block 33 to move; a traction seat dial 6 is provided on the side of the seat cover plate 1, and the traction seat dial 6 is used to limit the position of the pull rod 31;

[0034] The warning label 4 is arranged on the side of the pull rod 31, and the warning label 4 is used to warn the replacement cycle of the components of the locking assembly 3 according to the degree of wear;

[0035] The mounting hole 5 is arranged on the upper surface of the seat cover plate 1, and the mounting hole 5 is used for fixing and mounting the tire.

[0036] The working principle of the above embodiment is as follows: in the detached state, the spare tire is fixed on the seat cover 1 through the mounting hole 5; when locking, grease is applied to the seat cover 1, and grease is filled into the grease groove 2, the traction seat dial 6 is opened, and the pull rod 31 is pulled to move the wedge block 33 and open the U-shaped groove 11. The pin shaft at the bottom of the car body is inserted into the U-shaped groove 11 and then enters the lock hook 32. The wedge block 33 is reset to lock the lock hook 32. Since the pull rod 31 rubs against the side of the seat cover 1 when being pulled, the wear degree of the wear-resistant ring 12, the lock hook 32, and the wedge block 33 can be judged according to the wear degree of the warning label 4 on the pull rod 31. If necessary, they should be replaced to avoid the risk of detachment.

[0037] The specific models of the above electronic components are not specially specified, and ordinary products available on the market can be selected as long as they can meet the use requirements of the utility model.

[0038] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A fifth wheel, It is characterized in that include: Support; A seat cover plate (1) is connected and arranged above the support, and a U-shaped groove (11) is provided on one side of the seat cover plate (1); A lubricating grease groove (2) is arranged on the upper surface of the seat cover plate (1), the lubricating grease groove (2) is located around the U-shaped groove (11), and the lubricating grease groove (2) is filled with lubricating grease; A locking assembly (3) is arranged between the support and the seat cover (1), and the locking assembly (3) has a pull rod (31); A warning label (4) is arranged on the side of the pull rod (31), and the warning label (4) is used to warn the component replacement cycle of the locking assembly (3) according to the degree of wear; A mounting hole (5) is arranged on the upper surface of the seat cover plate (1), and the mounting hole (5) is used for fixing and mounting a tire.

2. A fifth wheel according to claim 1, Features A wear-resistant ring (12) is provided on the inner arc opening of the U-shaped groove (11).

3. A fifth wheel according to claim 1, It is characterized in that The locking assembly (3) comprises: A lock hook (32) is movably arranged on the support through a pin shaft and a spring, and the arc opening of the lock hook (32) corresponds to the inner arc opening of the U-shaped groove (11); A wedge block (33) is slidably disposed below the locking hook (32). The wedge block (33) is used to lock the position of the locking hook (32). The pull rod (31) is connected to the wedge block (33) and is used to pull the wedge block (33) to move.

4. A fifth wheel as claimed in claim 1, It is characterized in that A traction seat handle (6) is provided on the side of the seat cover plate (1), and the traction seat handle (6) is used to limit the position of the pull rod (31).

5. A fifth wheel as claimed in claim 1, It is characterized in that The area of ​​the lubricating grease groove (2) accounts for 10%-30% of the upper surface area of ​​the seat cover plate (1).

Images