A tractor fastening device to prevent loosening

Abstract

This utility model discloses an anti-loosening fastening device for tractor units, belonging to the field of tractor unit technology. The anti-loosening fastening device includes a front connecting plate and a rear connecting plate. A movable combined arm is installed at the rear end of an adjusting frame, and a viscous damper is installed between the two movable combined arms. Hydraulic dampers are installed between the front and rear connecting plates and the adjusting frame. This utility model solves the problem that existing tractor unit fastening devices become loose due to vehicle vibrations, failing to maintain a stable working state. By connecting the hydraulic damper and the viscous damper, this utility model achieves a good connection between the front and rear connecting plates. During tractor turning, the front and rear connecting plates are subjected to tension and traction forces, causing movement. During this movement, the hydraulic damper and the viscous damper limit movement and reduce vibration, effectively achieving an anti-loosening effect.

Description

Technical Field

[0001] This utility model relates to the field of tractor technology, specifically to a tractor fastening device for preventing loosening. Background Technology

[0002] When a tractor unit tows a trailer, the tractor unit is usually secured to the trailer by a collar, and bolts are used to pass through the collar and directly install the bolts at the trailer's docking point. The bolts then lock the collar in place, and the tractor unit connects to the trailer using a connecting clip.

[0003] Chinese Patent CN220009368U discloses a fastening device for a heavy-duty truck tractor, including a base plate and a docking base plate. In this fastening device, the collar gradually moves towards the side limiting plate. After the collar is engaged with the inner side of the side limiting plate, the side limiting plate limits the shaft and the collar, causing the collar to automatically correct itself and abut against the inner side of the side limiting plate. Once the side limiting plate and the collar are fully abutted, the side limiting plate and the collar can be fixed in place. This improves the accuracy of docking between the heavy-duty truck tractor and the trailer and increases the fault tolerance rate, allowing docking and fixing to be achieved even if there is a misalignment between the side limiting plate and the collar.

[0004] The aforementioned tractor fastening device, during actual use, is prone to loosening due to vibrations generated by the vehicle, making it unable to maintain a stable working state; therefore, it does not meet existing requirements. In response, we have proposed an anti-loosening tractor fastening device. Utility Model Content

[0005] The purpose of this utility model is to provide a tractor fastening device that prevents loosening, thereby solving the problem mentioned in the background art that the tractor fastening device becomes loose due to vibration generated by the vehicle during actual use, and cannot maintain a stable working state.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tractor fastening device for preventing loosening, comprising a front connecting plate and a rear connecting plate, wherein an adjusting frame is connected to one end of each of the front and rear connecting plates, a movable combined arm is installed at the rear end of the adjusting frame, a viscous damper is installed between the two movable combined arms, a connecting ring is installed at both ends of the viscous damper, and a hydraulic damper is installed between the front and rear connecting plates and the adjusting frame, wherein a sealing sleeve is installed at both ends of the hydraulic damper.

[0007] Preferably, both ends of the hydraulic damper extend into the interior of the sealing sleeve and are sealed to the sealing sleeve, and the interior of the sealing sleeve is filled with hydraulic oil.

[0008] Preferably, the sealing sleeve is fixedly connected to a connector, and the two connectors are respectively hinged to the front connecting plate, the rear connecting plate and the adjusting frame.

[0009] Preferably, a connecting shaft is installed at the lower end of the movable combined arm, the movable combined arm is hinged to the adjusting frame through the connecting shaft, and a positioning sleeve is surrounded at the upper end of the two movable combined arms, the two movable combined arms are rotatably connected to the positioning sleeve.

[0010] Preferably, the upper end of the movable combination arm is provided with a limiting plate at both the front and rear ends, the movable combination arm is hinged to the limiting plate, and the positioning sleeve is rotatably connected to the movable combination arm through the limiting plate.

[0011] Preferably, a fastening ring is installed on the outside of the limiting plate, and the fastening ring extends through the limiting plate into the interior of the positioning sleeve and is fixedly connected to the positioning sleeve.

[0012] Preferably, the outer surfaces of both the front connecting plate and the rear connecting plate are provided with four locking holes, which are used to connect the tractor and the cargo box.

[0013] Preferably, the two ends of the viscous damper are fixedly connected to two connecting rings, and the connecting rings are slidably connected to two movable combined arms.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The fastening device of this utility model adopts two sets of symmetrically arranged front connecting plates and rear connecting plates. The front connecting plates and rear connecting plates are connected to the tractor and the cargo box, respectively. After connection, the adjusting frame and movable combination arm are adjusted according to the actual installation position. After adjustment, the hydraulic damper and viscous damper are connected to achieve a good connection effect between the front connecting plates and the rear connecting plates. During the turning process of the tractor, the front connecting plates and the rear connecting plates are moved by the tension and traction forces. During the movement, the hydraulic damper and the viscous damper limit the movement and perform vibration reduction, effectively achieving the anti-loosening effect.

[0016] The upper end of the movable combined arm of this utility model is limited by the positioning sleeve, and the upper end of the movable combined arm is fixed by adjusting the fastening ring. The limiting plate and the positioning sleeve effectively keep the position of the two movable combined arms stable. With the assistance of hydraulic damper and viscous damper, the front connecting plate and the rear connecting plate are limited and supported in multiple layers, thereby improving the traction effect. Attached Figure Description

[0017] Figure 1 This is an axonometric view of the front view of this utility model;

[0018] Figure 2 This is a top-view axonometric drawing of the present invention;

[0019] Figure 3 This is an axonometric view of the present invention viewed from below;

[0020] Figure 4 This is an isometric view of the front connecting plate and movable combination arm of this utility model after adjustment.

[0021] In the diagram: 1. Front connecting plate; 101. Locking hole; 102. Hydraulic damper; 103. Sealing sleeve; 104. Connector; 2. Adjusting frame; 3. Movable combination arm; 301. Limiting plate; 302. Fastening ring; 303. Positioning sleeve; 304. Connecting shaft; 4. Viscous damper; 401. Connecting ring; 5. Rear connecting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0023] To address the issue of existing tractor unit fastening devices becoming loose due to vehicle vibrations during actual use, thus failing to maintain stable operation, please refer to... Figure 1 - Figure 4 This embodiment provides the following technical solution:

[0024] This embodiment of a tractor fastening device for preventing loosening includes a front connecting plate 1 and a rear connecting plate 5. One end of the front connecting plate 1 and the rear connecting plate 5 is connected to an adjusting frame 2. A movable combined arm 3 is installed at the rear end of the adjusting frame 2. A viscous damper 4 is installed between the two movable combined arms 3. A connecting ring 401 is installed at both ends of the viscous damper 4. A hydraulic damper 102 is installed between the front connecting plate 1 and the rear connecting plate 5 and the adjusting frame 2. A sealing sleeve 103 is installed at both ends of the hydraulic damper 102. The fastening device uses two sets of symmetrically arranged front connecting plates 1 and rear connecting plates 5. The front connecting plates 1 and the rear connecting plates 5 are respectively connected to the tractor and the cargo box. After connection, the adjusting frame 2 and the movable combined arm 3 are adjusted according to the actual installation position.

[0025] Both ends of the hydraulic damper 102 extend into the interior of the sealing sleeve 103 and are sealed to the sealing sleeve 103. The interior of the sealing sleeve 103 is filled with hydraulic oil.

[0026] In fact, the sealing sleeve 103 is externally fixedly connected to a connector 104. The two connectors 104 are respectively hinged to the front connecting plate 1, the rear connecting plate 5 and the adjusting frame 2. During the turning process of the tractor, the front connecting plate 1 and the rear connecting plate 5 are subjected to tension and traction forces and move. During the movement, the hydraulic damper 102 and the viscous damper 4 are limited and perform vibration reduction, effectively achieving the anti-loosening effect.

[0027] In addition, the two ends of the viscous damper 4 are fixedly connected to two connecting rings 401 respectively, and the connecting rings 401 are slidably connected to two movable combined arms 3. By connecting the hydraulic damper 102 and the viscous damper 4, the front connecting plate 1 and the rear connecting plate 5 have a good connection effect.

[0028] Specifically, the fastening device uses two sets of symmetrically arranged front connecting plates 1 and rear connecting plates 5. The front connecting plates 1 and rear connecting plates 5 are connected to the tractor and the cargo box, respectively. After connection, the adjusting frame 2 and the movable combination arm 3 are adjusted according to the actual installation position. After adjustment, the hydraulic damper 102 and the viscous damper 4 are connected to ensure a good connection between the front connecting plates 1 and rear connecting plates 5. During the turning process of the tractor, the front connecting plates 1 and rear connecting plates 5 are subjected to tension and traction forces and move. During the movement, the hydraulic damper 102 and the viscous damper 4 limit the movement and perform vibration reduction, effectively achieving the anti-loosening effect.

[0029] To address the issue of existing tractor fastening devices failing to maintain structural stability during practical use, thus affecting long-term operation, please refer to... Figure 1 - Figure 4 This embodiment provides the following technical solution:

[0030] In this embodiment, a connecting shaft 304 is installed at the lower end of the movable combined arm 3. The movable combined arm 3 is hinged to the adjusting frame 2 through the connecting shaft 304. The upper ends of the two movable combined arms 3 are surrounded by positioning sleeves 303. The two movable combined arms 3 are rotatably connected to the positioning sleeves 303. The upper end of the movable combined arm 3 is limited by the positioning sleeves 303. The upper end of the movable combined arm 3 is fixed by adjusting the fastening ring 302. The limiting plate 301 and the positioning sleeves 303 effectively keep the position of the two movable combined arms 3 stable.

[0031] The movable combination arm 3 is provided with a limit plate 301 at both the front and rear ends. The movable combination arm 3 is hinged to the limit plate 301, and the positioning sleeve 303 is rotatably connected to the movable combination arm 3 through the limit plate 301.

[0032] It should be noted that a fastening ring 302 is installed on the outside of the limiting plate 301. The fastening ring 302 extends through the limiting plate 301 and into the interior of the positioning sleeve 303, where it is fixedly connected. The fastening ring 302 is used to adjust the fixed position of the upper end of the movable combination arm 3.

[0033] Furthermore, the outer surfaces of both the front connecting plate 1 and the rear connecting plate 5 are provided with four locking holes 101. The locking holes 101 are used to connect the tractor and the cargo box. With the assistance of the hydraulic damper 102 and the viscous damper 4, the front connecting plate 1 and the rear connecting plate 5 are provided with multiple layers of limiting and support, thereby improving the traction effect.

[0034] Specifically, the upper end of the movable combined arm 3 is limited by the positioning sleeve 303, and the upper end of the movable combined arm 3 is fixed by adjusting the fastening ring 302. The limiting plate 301 and the positioning sleeve 303 effectively keep the position of the two movable combined arms 3 stable. The hydraulic damper 102 and the viscous damper 4 provide assistance to provide multi-layer limiting and support for the front connecting plate 1 and the rear connecting plate 5, thereby improving the traction effect.

[0035] Working Principle: In use, the front connecting plate 1 and the rear connecting plate 5 are connected to the tractor and the cargo box respectively. After connection, the adjusting frame 2 and the movable combined arm 3 are adjusted according to the actual installation position. After adjustment, the hydraulic damper 102 and the viscous damper 4 are connected to ensure a good connection between the front connecting plate 1 and the rear connecting plate 5. During the turning process of the tractor, the front connecting plate 1 and the rear connecting plate 5 are subjected to tension and traction forces, causing them to move. During the movement, the hydraulic damper 102 and the viscous damper 4 limit the movement and reduce vibration, effectively preventing loosening. The upper end of the movable combined arm 3 is limited by the positioning sleeve 303, and the upper end of the movable combined arm 3 is fixed by adjusting the fastening ring 302. The limiting plate 301 and the positioning sleeve 303 effectively maintain the positional stability of the two movable combined arms 3. With the assistance of the hydraulic damper 102 and the viscous damper 4, the front connecting plate 1 and the rear connecting plate 5 are multi-layered limited and supported, improving the traction effect.

[0036] 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.

[0037] 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A fastening device for a towing vehicle against loosening, comprising a front connection plate (1) and a rear connection plate (5), characterized in that, One end of the front connecting plate (1) and the rear connecting plate (5) is connected to an adjusting frame (2). A movable combined arm (3) is installed at the rear end of the adjusting frame (2). A viscous damper (4) is installed between the two movable combined arms (3). A connecting ring (401) is installed at both ends of the viscous damper (4). A hydraulic damper (102) is installed between the front connecting plate (1) and the rear connecting plate (5) and the adjusting frame (2). A sealing sleeve (103) is installed at both ends of the hydraulic damper (102).

2. A lashing device for securing a trailer to a towing vehicle according to claim 1, wherein Both ends of the hydraulic damper (102) extend into the interior of the sealing sleeve (103) and are sealed to the sealing sleeve (103). The interior of the sealing sleeve (103) is filled with hydraulic oil.

3. The anti-loosening tractor fastening device according to claim 2, characterized in that, Furthermore, the sealing sleeve (103) is fixedly connected to a connector (104), and the two connectors (104) are respectively hinged to the front connecting plate (1), the rear connecting plate (5) and the adjusting frame (2).

4. A lashing device for securing a trailer to a towing vehicle according to claim 1, wherein The lower end of the movable combination arm (3) is equipped with a connecting shaft (304). The movable combination arm (3) is hinged to the adjusting frame (2) through the connecting shaft (304). The upper ends of the two movable combination arms (3) are surrounded by positioning sleeves (303). The two movable combination arms (3) are rotatably connected to the positioning sleeves (303).

5. The anti-loosening tractor fastening device according to claim 4, characterized in that, The upper end of the movable combination arm (3) is provided with a limiting plate (301) at both the front and rear ends. The movable combination arm (3) is hinged to the limiting plate (301), and the positioning sleeve (303) is rotatably connected to the movable combination arm (3) through the limiting plate (301).

6. The anti-loosening tractor fastening device according to claim 5, characterized in that, A fastening ring (302) is installed on the outside of the limiting plate (301). The fastening ring (302) extends through the limiting plate (301) and into the interior of the positioning sleeve (303), where it is fixedly connected.

7. A lashing device for securing a trailer to a towing vehicle according to claim 1 wherein, The outer surfaces of the front connecting plate (1) and the rear connecting plate (5) are provided with four locking holes (101), which are used to connect the tractor and the cargo box.

8. A lashing device for securing a trailer to a towing vehicle according to claim 7, wherein the lashing device is arranged to be secured to the towing vehicle by means of a clamp. The two ends of the viscous damper (4) are fixedly connected to two connecting rings (401) respectively, and the connecting rings (401) are slidably connected to two movable combined arms (3).

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