Automatic hook assembly
By designing an automatic hook assembly, the problems of low efficiency and safety hazards associated with manual hooking and unhooking in traditional mine cars are solved. It enables automatic connection and rotation adjustment of mine cars, improves connection efficiency and stability, and prevents damage to the hook assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-13
AI Technical Summary
Traditional mine car hooks require manual attachment and detachment, which is inefficient and poses safety hazards. Furthermore, they lack a rotation adjustment function, making them prone to breakage when the mine car tipps over.
Design an automatic hook assembly, including a main body and a hook seat, to achieve automatic connection and rotation adjustment through the cooperation of a rotating groove and a rotating plate, to ensure stable connection through the cooperation of a locking pin and a locking collar, and to reduce impact damage through a buffer spring.
It achieves automated connection of mine cars, improves connection efficiency, avoids safety hazards, has a rotation adjustment function to prevent the hook assembly from being damaged when the mine car is overturned, and improves practicality and stability.
Smart Images

Figure CN223990032U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mine car hook technology, specifically an automatic hook assembly. Background Technology
[0002] The mine car hook is a key component used to connect mine cars in rail transportation systems such as mines, tunnels, and railways. It is responsible for transmitting traction and braking forces to ensure the safe operation of the mine car group.
[0003] The "Functional Hook Assembly for Mining Cars" disclosed in publication number "CN219948202U" includes a hook shell, a mounting bracket on the left side of the hook shell, a hook tongue in the hook shell, a rotating hole on the hook tongue, a rotating shaft in the hook shell connected to the rotating hole, a locking iron fixedly installed on the left side of the hook tongue, the locking iron and the hook tongue being integrally formed, a set of positioning holes on the locking iron, a positioning component on the top of the hook shell, and a backing component on the rear side of the hook shell. The positioning component includes a set of mounting holes corresponding to the top and bottom sides of the hook shell, the positions of the set of mounting holes and the set of positioning holes being adapted to each other, and a positioning element detachably installed on the positioning hole. The positioning element includes a positioning pin inserted into the corresponding mounting hole and positioning hole, a support plate above the two positioning pins, and a bolt threaded to the bottom of the positioning pin.
[0004] Traditional mine car hooks require manual connection and disconnection by workers, which is inefficient and poses certain safety hazards. In addition, the hook assembly does not have a rotation adjustment function, and it is easy to break when the car overturns, increasing maintenance costs. To address these issues, we have designed an automatic hook assembly. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an automatic hook assembly, which solves the problems of low efficiency and safety hazards caused by the need for manual hooking and unhooking during use. In addition, it does not have the function of rotating the connection point, and the hook assembly is prone to breakage or damage when the mine car overturns.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an automatic hook assembly, comprising a main body and a hook seat assembled on the back of the main body;
[0007] An assembly seat is slidably installed inside the main body, and a rotating groove is provided on the back of the assembly seat;
[0008] The hook seat has a mounting ring that slides inside a rotating groove on its front side. A pull rod is inserted through the mounting base and extends to the front of the main body on the back side of the hook seat. A reinforcing ring plate that works with the pull rod is fixedly installed on the front side of the main body. A buffer spring is fixedly installed inside the front side of the main body, with the back of the buffer spring abutting against the front of the mounting base. A rotating plate is movably mounted on one side of the hook seat via a mounting pin. A hook plate is fixedly installed on one side of the back of the rotating plate. A locking ring plate is fixedly installed on the other side of the front of the rotating plate. A through hole is opened on one side of the hook seat, and a locking pin is inserted inside the through hole. A locking collar is fixedly installed at the center of the outer wall of the locking pin. A slot extending into the through hole is opened at the center of one side of the back of the hook seat. A retaining ring is fixedly installed on the other side of the back of the hook seat.
[0009] Preferably, a closed sleeve is fixedly installed at the bottom of the through hole, a support spring sleeved on the outer wall of the locking pin is fixedly installed inside the closed sleeve, and a support ring that abuts against the top of the support spring is fixedly installed below the outer wall of the locking pin.
[0010] Preferably, a closing ring is fixedly installed at the top of the through hole, and a limit ring is fixedly installed above the outer wall of the locking pin.
[0011] Preferably, an operating cap is fixedly installed on the top of the locking pin.
[0012] Preferably, a limiting plate is fixedly installed on the rear side of the main body, and a circular hole is provided at the center of the limiting plate.
[0013] Preferably, mounting plates are fixedly installed at the rear positions on both sides of the main body, and mounting holes are provided on the mounting plates.
[0014] This invention provides an automatic hook assembly. Compared with the prior art, it has the following advantages:
[0015] (1) The automatic hook assembly can connect mine cars by hook engagement through the cooperation between the hook seat, hook plate and clamp ring, realizing automatic hook connection between mine cars, increasing the speed of connection between mine cars, and avoiding the safety hazards of manual hooking and unhooking by staff.
[0016] (2) By combining the rotating groove and the rotating plate, the hook assembly has the function of rotation adjustment, which facilitates the unloading of the mine car and avoids the hook assembly from being twisted and damaged when the mine car is overturned. This increases the functionality of the hook assembly and improves its practicality. Attached Figure Description
[0017] Figure 1This is a schematic diagram of the connection structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the opening and closing structure of this utility model.
[0019] Figure 3 This is a schematic cross-sectional view of the main body of this utility model.
[0020] Figure 4 This is a schematic diagram of the state before connection of this utility model.
[0021] Figure 5 This is a schematic cross-sectional view of the hook seat of this utility model.
[0022] Figure 6 This is a schematic diagram of the assembly structure of this utility model.
[0023] In the diagram: 1. Main seat; 101. Assembly plate; 102. Reinforcing ring plate; 103. Pull rod; 104. Buffer spring; 105. Limiting plate; 2. Assembly seat; 201. Rotating groove; 3. Hook seat; 301. Rotating plate; 302. Locking ring plate; 303. Hook plate; 304. Mounting pin; 305. Clamping ring; 306. Through hole; 307. Slot hole; 308. Mounting ring; 4. Locking pin; 401. Operating cap; 402. Locking collar; 403. Limiting ring; 404. Support ring; 405. Supporting spring; 5. Closing ring; 501. Closing sleeve. Detailed Implementation
[0024] 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 scope of protection of the present utility model.
[0025] Example 1
[0026] Please see Figure 1-6 As shown, this embodiment proposes an automatic hook assembly, including a main body 1 and a hook seat 3 assembled on the back of the main body 1. A rotating plate 301 is movably mounted on one side of the hook seat 3 via a mounting pin 304. A hook plate 303 is fixedly mounted on one side of the back of the rotating plate 301. A locking ring plate 302 is fixedly mounted on the other side of the front of the rotating plate 301. A through hole 306 is opened on one side of the hook seat 3. A locking pin 4 is inserted into the through hole 306. A locking collar 402 is fixedly mounted at the center of the outer wall of the locking pin 4. A slot 307 extending into the through hole 306 is opened at the center of one side of the back of the hook seat 3. A retaining ring 305 is fixedly mounted on the other side of the back of the hook seat 3.
[0027] In use, the main seat 1 can be installed on the front and back of the mine car, allowing for the assembly of the hook components. The rotating plate 301 is movably mounted on one side of the back of the hook seat 3 via a mounting pin 304, and a hook plate 303 is fixedly installed on the back of the rotating plate 301. A locking ring plate 302 is fixedly installed on the front of the rotating plate 301. When the hook components are in the open state, the rotating plate 301 is at a horizontal 45-degree angle. When two mine cars dock, the hook plates 303 are inserted into the opposing hook seats 3, respectively, and push the locking ring plates 302 inside to rotate outward. As the locking ring plates 302 rotate outward, the hook plates 303 rotate inward simultaneously, eventually reaching a horizontal 180-degree position. When both sets of locking ring plates 302 have rotated to a horizontal 180-degree position, they interlock, thus connecting the two sets of hook components. The system enables automatic connection between two sets of mine cars, increasing the speed of connection. The locking pin 4 is inserted into the through hole 306. The locking collar 402 installed on the outer wall of the locking pin 4 contacts the back of the locking ring plate 302 through the slot 307. The back of the locking ring plate 302 is provided with a protruding plate that limits its movement. Thus, when the rotating plate 301 rotates to a horizontal 180 degrees, the locking collar 402 can abut and lock against the protruding plate on the back of the locking ring plate 302. The abutment and locking of the locking collar 402 ensures the stability of the hook plate 303 when engaged. When it is necessary to disconnect the mine cars, the operator only needs to press down the locking pin 4 to make the locking collar 402 misalign with the protruding plate on the back of the locking ring plate 302, and the two sets of hook plates 303 can be rotated and opened, increasing the convenience of disconnecting the mine cars.
[0028] Example 2
[0029] Based on Example 1, such as Figure 6 As shown, a mounting base 2 is slidably installed inside the main body 1. A rotating groove 201 is provided on the back of the mounting base 2. A mounting ring 308 is slidably installed inside the rotating groove 201 on the front of the hook base 3. A pull rod 103 is inserted through the mounting base 2 and extends to the front of the main body 1 on the back of the hook base 3. A reinforcing ring plate 102 that cooperates with the pull rod 103 is fixedly installed on the front of the main body 1. A buffer spring 104 is fixedly installed on the front side inside the main body 1. The back of the buffer spring 104 abuts against the front of the mounting base 2.
[0030] In use, the mounting base 2 is slidably installed inside the main body 1, and is elastically supported by the buffer spring 104. The back of the mounting base 2 is provided with a rotating groove 201, and the rotating plate 301 on the back of the hook seat 3 is rotatably installed in the rotating groove 201. The main body 1, the mounting base 2, and the hook seat 3 can be connected and fixed by the pull rod 103. Thus, the rotating plate 301 and the rotating groove 201 can rotate the connecting components during operation, which facilitates the flipping operation between mine cars during connection. The flipping of the mine car facilitates the unloading operation, greatly improving the speed of mine car unloading and preventing the hook assembly from breaking during the flipping process. It increases the rotatability of the hook assembly, and the buffer spring 104 can elastically buffer the impact force when the mine car decelerates, avoiding the situation where the impact force is too large during deceleration and damage to the hook assembly.
[0031] like Figure 5 and 6 As shown, a closed sleeve 501 is fixedly installed at the bottom of the through hole 306. A support spring 405, which is sleeved on the outer wall of the locking pin 4, is fixedly installed inside the closed sleeve 501. A support ring 404, which abuts against the top of the support spring 405, is fixedly installed below the outer wall of the locking pin 4.
[0032] In use, the closed sleeve 501 is fixedly installed at the bottom of the through hole 306 by bolts. The support spring 405 is installed inside the closed sleeve 501 and sleeved on the outside of the locking pin 4. The bottom of the locking pin 4 passes through the closed sleeve 501. A support ring 404 is fixedly installed on the lower part of the outer wall of the locking pin 4. The top of the support spring 405 abuts against the bottom of the support ring 404, so that the support spring 405 can provide elastic support for the locking pin 4. When the two sets of mine cars are connected, the operator only needs to press the locking pin 4 to make the locking collar 402 and the protrusion on the back of the locking ring plate 302 misaligned, so as to facilitate the engagement between the two sets of locking ring plates 302. After the two sets of locking ring plates 302 are engaged, the operator releases his hand, and the locking pin 4 rises and resets due to the elasticity of the support spring 405, so that the locking collar 402 limits and locks the locking ring plate 302.
[0033] like Figure 6 As shown, a closing ring 5 is fixedly installed on the top of the through hole 306, and a limit ring 403 is fixedly installed on the upper part of the outer wall of the locking pin 4.
[0034] In use, the closing ring 5 is fixedly installed on the top of the through hole 306, and the closing ring 5 is sleeved on the outer wall of the locking pin 4. The closing ring 5 cooperates with the limiting ring 403 to limit the locking pin 4 when it rises and resets, thus preventing the locking pin 4 from rising too high and causing misalignment of the locking collar 402 and the protruding plate on the back of the locking ring plate 302.
[0035] like Figure 1-6 As shown, an operating cap 401 is fixedly installed on the top of the locking pin 4.
[0036] When in use, the operating cap 401 makes it convenient for staff to press the locking pin 4, increasing the comfort of staff when pressing and controlling the locking pin 4.
[0037] like Figure 6 As shown, a limiting plate 105 is fixedly installed on the rear side inside the main body 1, and a circular hole is provided at the center of the limiting plate 105.
[0038] In use, the limiting plate 105 can position the mounting base 2 when it is subjected to an impact force and moves forward. The circular hole facilitates the buffer spring 104 to pass through the limiting plate 105 and be fixedly connected to the front of the mounting base 2.
[0039] like Figure 1 , Figure 2 and Figure 3 As shown, mounting plates 101 are fixedly installed on both sides of the main body 1 at the rear position, and mounting holes are opened on the mounting plates 101.
[0040] In use, the mounting plate 101 can be bolted to the main body 1 and installed on the mine car, which increases the convenience of hook assembly installation and subsequent disassembly, and also increases the stability of the hook assembly and the mine car installation connection.
[0041] Working principle: The main body 1 and the assembly plate 101 can fix the hook assembly on the mine car. When two sets of mine cars are docked, the hook plate 303 will be inserted into the hook seat 3 and push the rotating plate 301 to rotate to 180 degrees horizontally. When the rotating plate 301 rotates to 180 degrees horizontally, the hook plates 303 will engage. The engagement between the hook plates 303 can connect the mine cars, realizing the function of quick connection between the mine cars. The locking collar 402 and the convex plate on the back of the locking ring plate 302 can limit and lock the rotating plate 301 and the hook plate 303, ensuring the stability of the connection between the mine cars. The rotating groove 201 cooperates with the rotating plate 301 to select the connection of the hook assembly. The rotation of the hook assembly during connection facilitates the overturning and unloading of the mine car, increases the adjustability of the hook assembly, and improves the practicality during use.
[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. An automatic hook assembly, characterized by: The utility model provides a kind of hooking device, including main seat body (1) and the hook seat (3) assembled to the back of main seat body (1); The interior of the main seat body (1) is slidably mounted with an assembly seat (2), and the back of the assembly seat (2) is provided with a rotating groove (201); The front of the hook seat (3) is provided with a mounting ring (308) slidably mounted in the rotating groove (201), and the back of the hook seat (3) is inserted with a pull rod (103) penetrating through the assembly seat (2) and extending to the front of the main seat body (1), the front of the main seat body (1) is fixedly mounted with a reinforcing ring plate (102) cooperated with the pull rod (103), the front side of the interior of the main seat body (1) is fixedly mounted with a buffer spring (104), the back of the buffer spring (104) is in contact with the front of the assembly seat (2), one side of the hook seat (3) is movably mounted with a rotating plate (301) through a mounting pin (304), the back of the rotating plate (301) is fixedly mounted with a hook plate (303) on one side, the other side of the front of the rotating plate (301) is fixedly mounted with a locking ring plate (302), one side of the hook seat (3) is provided with a through hole (306), the through hole (306) is inserted with a locking pin (4), the outer wall of the locking pin (4) is fixedly mounted with a locking sleeve (402) at the central position, the back of the hook seat (3) is provided with a slot hole (307) extending to the interior of the through hole (306) at the central position of one side, and the other side of the back of the hook seat (3) is fixedly mounted with a clamping ring (305).
2. An automatic hook assembly according to claim 1, wherein: The bottom of the through hole (306) is fixedly mounted with a closing sleeve (501), the interior of the closing sleeve (501) is fixedly mounted with a supporting spring (405) sleeved on the outer wall of the locking pin (4), and the lower part of the outer wall of the locking pin (4) is fixedly mounted with a supporting ring (404) in contact with the top of the supporting spring (405).
3. An automatic hook assembly according to claim 1, wherein: The top of the through hole (306) is fixedly mounted with a closing ring (5), and the upper part of the outer wall of the locking pin (4) is fixedly mounted with a limiting ring (403).
4. An automatic hook assembly according to claim 1, wherein: The top of the locking pin (4) is fixedly mounted with an operating cap (401).
5. An automatic hook assembly according to claim 1, wherein: The rear side of the interior of the main seat body (1) is fixedly mounted with a limiting plate (105), and the central position of the limiting plate (105) is provided with a circular hole.
6. An automatic hook assembly according to claim 1, wherein: The rear position of the two sides of the main seat body (1) is fixedly mounted with an assembly plate (101), and the assembly plate (101) is provided with a mounting hole. The rear position of the two sides of the main seat body (1) is fixedly mounted with an assembly plate (101), and the assembly plate (101) is provided with a mounting hole.
Citation Information
Patent Citations
Functional hook assembly for mine car
CN219948202U