Anti-falling semi-trailer hitch structure

Abstract

The utility model relates to the field of semitrailer, disclose a kind of anti-falling semitrailer hitch structure, including traction saddle, the inside fixedly connected with locking groove of traction saddle, the both sides of the front end of traction saddle are fixedly installed with first micro monitoring, the left side sliding installation of the front end of traction saddle has limit lock tongue, the left side of limit lock tongue is provided with driver, the rear end of locking groove is movably connected with traction pin, the bottom end of traction pin is movably articulated with pull rod, the both sides of the bottom end of traction saddle are fixedly installed with second micro monitoring.The anti-falling semitrailer hitch structure is locked by limit lock tongue movement to traction pin limit, then locking motor drives self-locking lever rotates downward, self-locking lever is inserted into the inside of limit slot, and the front end of locking groove can be self-locked, even if lock tongue fails, self-locking lever can also limit traction pin to avoid disengagement, the structure realizes the function of convenient self-locking anti-falling, solves the problem that lock tongue is likely to fail.

Description

Technical Field

[0001] This utility model relates to the field of semi-trailer technology, specifically to an anti-detachment semi-trailer attachment structure. Background Technology

[0002] A semi-trailer is a trailer whose axle is located behind the vehicle's center of gravity and is equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. The semi-trailer's coupling structure is a key component that connects the tractor and the semi-trailer, and its design directly affects driving safety, stability, and load-bearing capacity.

[0003] Most semi-trailers use a saddle-type traction structure for their coupling. The common saddle-type traction structure uses a locking mechanism to achieve limit locking during use. However, the saddle-type traction structure lacks a self-locking mechanism. If the locking mechanism is damaged, the tractor and semi-trailer are prone to detaching and causing an accident.

[0004] There is an urgent need for a semi-trailer attachment structure that prevents detachment and addresses the technical deficiencies mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-detachment semi-trailer attachment structure to solve the problem of easy lock tongue failure mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-detachment semi-trailer attachment structure, including a traction saddle, a locking groove fixedly connected inside the traction saddle, first micro-monitors fixedly installed on both sides of the front end of the traction saddle, a limit lock tongue slidably installed on the left side of the front end of the traction saddle, a driver provided on the left side of the limit lock tongue, a traction pin movably connected to the rear end of the locking groove, a pull rod movably hinged to the bottom end of the traction pin, second micro-monitors fixedly installed on both sides of the bottom end of the traction saddle, a mounting base provided at the rear end of the traction saddle, a hydraulic component hingedly installed on the mounting base, a fixed seat fixedly connected to the left side of the locking groove, a self-locking rod movably installed inside the fixed seat, a protective sleeve fixedly connected to the outside of the self-locking rod, a pressure sensor fixedly installed inside the protective sleeve, a locking motor fixedly installed outside the fixed seat, and a limit slot fixedly connected to the right side of the locking groove.

[0007] As a further technical solution of this utility model, the self-locking rod is an arc-shaped rod, and the end of the self-locking rod is embedded in the limiting groove for locking and fixing.

[0008] As a further technical solution of this utility model, the output end of the locking motor is fixedly connected to the self-locking rod, and a reinforcing layer is provided on the outside of the traction pin.

[0009] As a further technical solution of this utility model, the traction pin is disposed at the rear end of the locking groove, and the limiting lock tongue and the traction pin are on the same plane.

[0010] As a further technical solution of this utility model, the first micro monitor, the second micro monitor, and the pressure sensor are all electrically connected to the central control equipment of the semi-trailer.

[0011] As a further technical solution of this utility model, the traction saddle is movably mounted on the mounting base, and the hydraulic component is movably hinged to the traction saddle.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the anti-detachment semi-trailer hook-up structure not only realizes the function of self-locking and anti-detachment, and the function of improving strength and facilitating reminders, but also realizes the function of easy docking and installation;

[0013] (1) By setting a locking groove, a fixed seat, a locking motor, a self-locking rod, a protective sleeve and a limiting slot, when the semi-trailer is attached, the truck head moves to the position of the cargo box, the connecting piece at the bottom of the cargo box moves into the inside of the traction pin and follows the traction pin into the locking groove, the limiting lock tongue moves to limit and lock the traction pin, and then the locking motor drives the self-locking rod to rotate downward, and the self-locking rod is inserted into the limiting slot to self-lock the front end of the locking groove. Even if the lock tongue fails, the self-locking rod can still limit the traction pin to prevent it from falling off. This structure realizes the function of easy self-locking and anti-falling off.

[0014] (2) By setting a locking groove, a limiting lock tongue, a traction pin and a reinforcing layer, the bottom of the semi-trailer's cargo box has a connector. After the connector is embedded in the locking groove and the traction pin, the limiting lock tongue can limit the traction pin. The reinforcing layer outside the traction pin can enhance the overall support and wear resistance. Once the lock tongue falls off, the traction pin will hit the self-locking rod under force. After the pressure sensor on the self-locking rod senses the pressure value, it can alarm the vehicle's central control system. This structure realizes the functions of improving strength and facilitating alarm.

[0015] (3) By setting up a traction saddle, a first micro monitor, a second micro monitor and a hydraulic component, when the semi-trailer is docked and installed, the first micro monitor and the second micro monitor on the traction saddle can transmit the position and image at the docking time to the central control display screen of the semi-trailer, so that the driver can understand the docking situation and facilitate stable docking. When docking, the hydraulic component can adjust the docking height and angle of the traction saddle. This structure realizes the function of facilitating docking and installation. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a front view of the locking cross section of this utility model;

[0018] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

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

[0020] In the diagram: 1. Traction saddle; 2. First micro monitor; 3. Locking groove; 4. Fixing base; 5. Locking motor; 6. Driver; 7. Limiting lock tongue; 8. Traction pin; 9. Limiting slot; 10. Pull rod; 11. Reinforcing layer; 12. Second micro monitor; 13. Self-locking rod; 14. Pressure sensor; 15. Protective sleeve; 16. Mounting base; 17. Hydraulic components. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0022] Please see Figure 1-4 The present invention provides an embodiment of an anti-detachment semi-trailer attachment structure, comprising a traction saddle 1, a locking groove 3 fixedly connected inside the traction saddle 1, a first micro monitor 2 fixedly installed on both sides of the front end of the traction saddle 1, a limit lock tongue 7 slidably installed on the left side of the front end of the traction saddle 1, a driver 6 provided on the left side of the limit lock tongue 7, a traction pin 8 movably connected to the rear end of the locking groove 3, a pull rod 10 movably hinged to the bottom end of the traction pin 8, a second micro monitor 12 fixedly installed on both sides of the bottom end of the traction saddle 1, a mounting base 16 provided at the rear end of the traction saddle 1, a hydraulic component 17 hingedly installed on the mounting base 16, a fixing seat 4 fixedly connected to the left side of the locking groove 3, a self-locking rod 13 movably installed inside the fixing seat 4, a protective sleeve 15 fixedly connected to the outside of the self-locking rod 13, a locking motor 5 fixedly installed on the outside of the fixing seat 4, and a limit slot 9 fixedly connected to the right side of the locking groove 3.

[0023] The self-locking rod 13 is an arc-shaped rod. The end of the self-locking rod 13 is embedded in the limiting slot 9 and fixed in a snap-fit ​​manner. The output end of the locking motor 5 is fixedly connected to the self-locking rod 13. The traction pin 8 is provided with a reinforcing layer 11 on its outside.

[0024] Specifically, such as Figure 1 and Figure 3As shown, when the semi-trailer is attached, the cab moves towards the cargo box. The connecting piece at the bottom of the cargo box moves into the traction pin 8 and then follows the traction pin 8 into the locking groove 3. The limiting lock tongue 7 moves to limit and lock the traction pin 8. Then, the locking motor 5 drives the self-locking rod 13 to rotate downward. The self-locking rod 13 is inserted into the limiting slot 9 to self-lock the front end of the locking groove 3. Even if the lock tongue fails, the self-locking rod 13 can still limit the traction pin 8 to prevent it from disengaging.

[0025] The traction pin 8 is located at the rear end of the locking groove 3, the limiting lock tongue 7 is on the same plane as the traction pin 8, and the pressure sensor 14 is fixedly installed inside the protective sleeve 15.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, there is a connector at the bottom of the semi-trailer's cargo box. After the connector is embedded in the locking groove 3 and the towing pin 8, the limiting lock tongue 7 can limit the towing pin 8. The reinforcing layer 11 on the outside of the towing pin 8 can enhance the overall support and wear resistance. Once the lock tongue falls off, the towing pin 8 will hit the self-locking rod 13 under force. After the pressure sensor 14 on the self-locking rod 13 senses the pressure value, it can send an alarm to the vehicle's central control system.

[0027] The first micro monitor 2, the second micro monitor 12 and the pressure sensor 14 are all electrically connected to the central control equipment of the semi-trailer. The traction saddle 1 is movably mounted on the mounting base 16, and the hydraulic component 17 is movably hinged to the traction saddle 1.

[0028] Specifically, such as Figure 1 and Figure 4 As shown, during the docking installation of the semi-trailer, the first micro monitor 2 and the second micro monitor 12 on the traction saddle 1 can transmit the position and image during docking to the central control display screen of the semi-trailer, so that the driver can understand the docking situation and facilitate stable docking. During docking, the hydraulic component 17 can adjust the docking height and angle of the traction saddle 1.

[0029] Working principle: When the semi-trailer is attached, the cab moves towards the cargo box. The connecting piece at the bottom of the cargo box moves into the traction pin 8 and then enters the locking groove 3 along with the traction pin 8. The limiting locking tongue 7 moves to limit and lock the traction pin 8. The first micro monitor 2 and the second micro monitor 12 on the traction saddle 1 can transmit the position and image during docking to the central control display screen of the semi-trailer, so that the driver can understand the docking situation and facilitate stable docking. During docking, the hydraulic component 17 can adjust the docking height and angle of the traction saddle 1. Then, the locking motor 5 drives the self-locking rod 13 to rotate downwards. The self-locking rod 13 is inserted into the limiting slot 9 to self-lock the front end of the locking slot 3. Even if the locking tongue fails, the self-locking rod 13 can limit the traction pin 8 to prevent it from falling off. The reinforcing layer 11 on the outside of the traction pin 8 can enhance the overall support and wear resistance. Once the locking tongue falls off, the traction pin 8 will hit the self-locking rod 13 under force. After the pressure sensor 14 on the self-locking rod 13 senses the pressure value, it can alarm the car's central control system. This structure realizes the functions of improving strength and facilitating alarm.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A semi-trailer attachment structure for preventing detachment, comprising a towing saddle (1), characterized in that: The traction saddle (1) has a locking groove (3) fixedly connected inside. The two sides of the front end of the traction saddle (1) are fixedly installed with a first micro monitor (2). The left side of the front end of the traction saddle (1) is slidably installed with a limit lock tongue (7). The left side of the limit lock tongue (7) is provided with a driver (6). The rear end of the locking groove (3) is movably connected with a traction pin (8). The bottom end of the traction pin (8) is movably hinged with a pull rod (10). The two sides of the bottom end of the traction saddle (1) are fixedly installed with a second micro monitor (12). The rear end is provided with a mounting base (16), and a hydraulic component (17) is hinged on the mounting base (16). A fixed seat (4) is fixedly connected to the left side of the locking groove (3). A self-locking rod (13) is movably installed inside the fixed seat (4). A protective sleeve (15) is fixedly connected to the outside of the self-locking rod (13). A pressure sensor (14) is fixedly installed inside the protective sleeve (15). A locking motor (5) is fixedly installed outside the fixed seat (4). A limit slot (9) is fixedly connected to the right side of the locking groove (3).

2. The anti-detachment semi-trailer attachment structure according to claim 1, characterized in that: The self-locking rod (13) is an arc-shaped rod, and the end of the self-locking rod (13) is embedded in the limiting slot (9) and fixed in a snap-fit ​​manner.

3. The anti-detachment semi-trailer attachment structure according to claim 1, characterized in that: The output end of the locking motor (5) is fixedly connected to the self-locking rod (13), and the outside of the traction pin (8) is provided with a reinforcing layer (11).

4. The anti-detachment semi-trailer attachment structure according to claim 1, characterized in that: The traction pin (8) is located at the rear end of the locking groove (3), and the limiting locking tongue (7) and the traction pin (8) are on the same plane.

5. The anti-detachment semi-trailer attachment structure according to claim 1, characterized in that: The first micro monitor (2), the second micro monitor (12), and the pressure sensor (14) are all electrically connected to the central control equipment of the semi-trailer.

6. The anti-detachment semi-trailer attachment structure according to claim 1, characterized in that: The traction saddle (1) is movably mounted on the mounting base (16), and the hydraulic assembly (17) is movably hinged to the traction saddle (1).

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