Rust-proof coupler knuckle pin

Abstract

The utility model relates to the technical field of railway vehicles, and discloses an anti-rust coupler knuckle pin which comprises a coupler knuckle pin body and a clamping head fixedly installed at the top of the coupler knuckle pin body, a fixing hole is formed in the position, close to the bottom, of the front side of the coupler knuckle pin body, and a flexible protective cap is arranged at the top of the clamping head. A vertical block is fixedly installed at the bottom of the flexible protective cap, inserting grooves are formed in the positions, close to the bottom, of the two sides of the vertical block, a protective assembly is arranged on the rear side of a clamping head, and a connecting assembly is arranged in an inner cavity of the clamping head. And two rack plates meshed with the gear can move towards the opposite sides, T-shaped inserting blocks can be inserted into inner cavities of adjacent inserting grooves under connection of adjacent bent rods, the flexible protective cap can be conveniently installed, the stability of connection between the flexible protective cap and the clamping head is improved, and the follow-up protection effect of the flexible protective cap is improved.

Description

Technical Field

[0001] This utility model relates to the field of railway vehicle technology, specifically to a rust-resistant hook pin. Background Technology

[0002] The coupler tongue pin is a key component in the railway coupler system. It is mainly used to realize the rotation function of the coupler tongue. Its core function is to connect the coupler and ensure the reliability of coupling and disengagement between vehicles. In particular, in the locked state, it reduces the stress through the cooperation of the traction flange and the guard pin flange.

[0003] For example, CN219565088U discloses a protective hook tongue pin for railway vehicles in metallurgical enterprises. The hook tongue pin has a through-hole at its lower part and a locking head at its upper part. A bolt post is welded above the locking head, and a flexible protective cap is threaded onto the bolt post. This invention effectively prevents water and dust from falling into the gap between the hook tongue and the hook tongue pin by using a flexible protective cap and locking head, thus preventing the hook tongue pin from becoming stuck due to rust or adhesion. Furthermore, the flexible protective cap is made of soft materials such as plastic, providing good elasticity and adapting to various installation spaces.

[0004] The aforementioned patent features a threaded post with a soft protective cap, which facilitates the replacement of the soft protective cap. However, the threaded disassembly method makes it easy for the soft protective cap to loosen or even fall off due to vibration during actual use, thereby reducing the stability of the connection and the protective effect.

[0005] Therefore, we propose a rust-resistant hook pin to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a rust-resistant hook pin to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rust-resistant hook pin, comprising a hook pin body and a clip head fixedly installed on the top of the hook pin body, a fixing hole is provided on the front side of the hook pin body near the bottom, a flexible protective cap is provided on the top of the clip head, a vertical block is fixedly installed on the bottom of the flexible protective cap, slots are provided on both sides of the vertical block near the bottom, a protective component is provided on the rear side of the clip head, and a connecting component is provided in the inner cavity of the clip head;

[0008] The connecting assembly includes a worm gear that moves through the rear side of the inner cavity of the chuck near the bottom and a drive disc fixedly installed at the rear end of the worm gear. A worm wheel meshes with one side of the worm gear, and a vertical rod is inserted through the center of the top of the worm wheel. The bottom end of the vertical rod is rotatably connected to the bottom of the inner cavity of the chuck. A gear is fixedly sleeved on the outer periphery of the vertical rod near the bottom end. A rack plate meshes with both the front and rear sides of the gear. The bottom of the rack plate is slidably connected to the bottom of the inner cavity of the chuck. A bent rod is fixedly installed at the middle position of the rear side of the rack plate. A T-shaped plug is fixedly installed at the opposite end of the bent rod, and the T-shaped plug is movably inserted into the inner cavity of the adjacent slot.

[0009] Preferably, a limiting telescopic rod is fixedly installed on the opposite side of the T-shaped insert near both the front and rear sides, and the ends of the limiting telescopic rods are fixedly connected to the inner cavity sidewalls of the adjacent clamps.

[0010] Preferably, a drive groove is provided on the rear side of the drive disk.

[0011] Preferably, a fixing ring is fixedly sleeved on the outer periphery of the vertical block near the middle position, and several connecting blocks are fixedly installed at the bottom of the fixing ring. Several slots are opened on the top of the card head, and the bottom of the connecting blocks are respectively movably inserted into the inner cavity of the adjacent slots.

[0012] Preferably, the plurality of connecting blocks and slots are arranged in a circular array with the bottom center of the fixing ring as the center.

[0013] Preferably, the protective assembly includes a protective plate slidably connected to the middle position of the rear side of the card head and a connecting groove opened at the middle position of the top of the protective plate. A T-shaped connecting block is movably inserted into the inner cavity of the connecting groove. A vertical rod is fixedly installed on the top of the T-shaped connecting block. A handle is fixedly installed on the top of the vertical rod. A fixing plate is movably sleeved on the outer periphery of the vertical rod near the top, and the front side of the fixing plate is fixedly connected to the card head.

[0014] Preferably, compression telescopic rods are evenly fixedly installed on the top of the T-shaped connecting block near the front and rear sides, and the top ends of the compression telescopic rods are fixedly connected to the fixing plate. Compression springs are movably sleeved on the outer periphery of the compression telescopic rods, and the top and bottom ends of the compression springs are fixedly connected to the fixing plate and the T-shaped connecting block, respectively.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. When the flexible protective cap needs to be installed, with the cooperation of the connecting components, the two rack plates meshing with the gear can be moved to the opposite side by the rotation of the gear. With the connection of the adjacent bent rods, the T-shaped plug can be inserted into the inner cavity of the adjacent slot, which facilitates the installation of the flexible protective cap, improves the stability of the connection between the flexible protective cap and the clip, and improves the subsequent protective effect of the flexible protective cap.

[0017] 2. When protecting the drive disk, with the cooperation of the protective components, the protective plate can slide to one side and cover the rear side of the drive disk. The T-shaped connecting block inserted into the inner cavity of the connecting groove can limit the position of the protective plate after sliding, thereby improving the protection effect of the drive disk. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention from another perspective;

[0020] Figure 3 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0021] Figure 4 This is an exploded view of the connecting component of this utility model;

[0022] Figure 5 For the present utility model Figure 4 Enlarged view of point A in the middle.

[0023] In the diagram: 1. Hook-and-loop pin body; 2. Clip head; 3. Flexible protective cap; 4. Fixing hole; 5. Protective component; 51. Protective plate; 52. Connecting groove; 53. T-shaped connecting block; 531. Compression telescopic rod; 532. Compression spring; 54. Vertical rod; 55. Fixing plate; 56. Handle; 6. Vertical block; 61. Fixing ring; 62. Connecting clip block; 63. Clip groove; 7. Slot; 8. Connecting component; 81. Drive plate; 811. Drive groove; 82. Worm gear; 83. Worm wheel; 84. Vertical rod; 85. Gear; 86. Rack plate; 87. Bent rod; 88. T-shaped insert block; 881. Limiting telescopic rod. 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 protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figure 1-5A rust-resistant hook pin includes a hook pin body 1 and a clip 2 fixedly installed on the top of the hook pin body 1 (both the hook pin body 1 and the clip 2 are coated with anti-corrosion material). A fixing hole 4 is provided on the front side of the hook pin body 1 near the bottom. A flexible protective cap 3 is provided on the top of the clip 2. A vertical block 6 is fixedly installed on the bottom of the flexible protective cap 3 (the bottom of the vertical block 6 moves through the top of the inner cavity of the clip 2). Slots 7 are provided on both sides of the vertical block 6 near the bottom. A protective component 5 is provided on the rear side of the clip 2. A connecting component 8 is provided in the inner cavity of the clip 2.

[0027] The connecting assembly 8 includes a worm gear 82 that movably penetrates the rear side of the inner cavity of the chuck 2 near the bottom and a drive disk 81 fixedly installed at the rear end of the worm gear 82. A worm wheel 83 is engaged on one side of the worm gear 82. A vertical rod 84 is provided through the center of the top of the worm wheel 83. The bottom end of the vertical rod 84 is rotatably connected to the bottom of the inner cavity of the chuck 2. A gear 85 is fixedly sleeved on the outer periphery of the vertical rod 84 near the bottom. A rack plate 86 is engaged on both the front and rear sides of the gear 85. The bottom of the rack plate 86 is slidably connected to the bottom of the inner cavity of the chuck 2. A bent rod 87 is fixedly installed at the middle position of the rear side of the rack plate 86. A T-shaped plug 88 is fixedly installed at the opposite end of the bent rod 87. The T-shaped plug 88 is movably inserted into the inner cavity of the adjacent slot 7.

[0028] Specifically, when the flexible protective cap 3 needs to be installed, with the cooperation of the connecting component 8, the two rack plates 86 meshing with the gear 85 can be moved to the opposite side under the rotation of the gear 85. With the connection of the adjacent bent rods 87, the T-shaped insert 88 can be inserted into the inner cavity of the adjacent slot 7, which facilitates the installation of the flexible protective cap 3, improves the stability of the connection between the flexible protective cap 3 and the clip 2, and improves the subsequent protective effect of the flexible protective cap 3.

[0029] On the opposite side of the T-shaped insert 88, near the front and rear sides, a limiting telescopic rod 881 is fixedly installed, and the ends of the limiting telescopic rod 881 are fixedly connected to the inner cavity sidewall of the adjacent clamp 2.

[0030] Specifically, the T-shaped insert 88 can be limited when it moves by setting the limit telescopic rod 811.

[0031] A drive slot 811 is provided on the rear side of the drive disk 81.

[0032] Specifically, by setting the drive slot 811, the drive disk 81 can be rotated by inserting an external tool into its inner cavity.

[0033] A fixing ring 61 is fixedly fitted on the outer periphery of the vertical block 6 near the middle position. Several connecting blocks 62 are fixedly installed on the bottom of the fixing ring 61. Several slots 63 are opened on the top of the card head 2. The bottom of the connecting blocks 62 is movably inserted into the inner cavity of the adjacent slots 63. The several connecting blocks 62 and slots 63 are arranged in a ring array with the bottom center of the fixing ring 61 as the center.

[0034] Specifically, by setting several connecting blocks 62 to be inserted into the inner cavity of adjacent slots 63, the stability of the flexible protective cap connection can be improved.

[0035] Example 2

[0036] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figure 2 and Figure 5 The protective component 5 includes a protective plate 51 slidably connected to the middle position of the rear side of the card head 2 and a connecting groove 52 opened at the middle position of the top of the protective plate 51. A T-shaped connecting block 53 is movably inserted into the inner cavity of the connecting groove 52. A vertical rod 54 is fixedly installed on the top of the T-shaped connecting block 53. A handle 56 is fixedly installed on the top of the vertical rod 54. A fixing plate 55 is movably sleeved on the outer periphery of the vertical rod 54 near the top, and the front side of the fixing plate 55 is fixedly connected to the card head 2.

[0037] Specifically, when protecting the drive disk 81, with the cooperation of the protective component 5, the protective plate 51 can slide to one side and cover the rear side of the drive disk 81. Furthermore, the T-shaped connecting block 53 can be inserted into the inner cavity of the connecting groove 52 to limit the position of the protective plate 51 after sliding, thereby improving the protection effect on the drive disk 81.

[0038] A compression telescopic rod 531 is evenly fixedly installed on the top of the T-shaped connecting block 53 near the front and rear sides, and the top of the compression telescopic rod 531 is fixedly connected to the fixing plate 55. A compression spring 532 is movably sleeved on the outer periphery of the compression telescopic rod 531, and the top and bottom of the compression spring 532 are fixedly connected to the fixing plate 55 and the T-shaped connecting block 53, respectively.

[0039] Specifically, by setting the compression telescopic rod 531 and the compression spring 532, the T-shaped connecting block 53 can be stably inserted into the inner cavity of the connecting groove 52.

[0040] Working principle: When the flexible protective cap 3 needs to be installed, the vertical block 6 fixed on the flexible protective cap 3 passes through the bottom of the inner cavity of the clamp 2, and several connecting blocks 62 fixed at the bottom of the fixing ring 61 are inserted into the inner cavity of the adjacent clamp slot 63 to improve the stability of the subsequent connection between the flexible protective cap 3 and the clamp 2. Then, it can be inserted into the inner cavity of the drive groove 811 by an external tool, and the drive disk 81 can be driven to rotate the worm 82 fixed on the drive disk 81. The worm wheel 83 meshing with the worm 82 can rotate the upright 84, which in turn can rotate the gear 85 fixedly sleeved on the outer circumference of the upright 84. Under the transmission of the rack plate 86, the adjacent bent rod 87 can be connected. The T-shaped plug 88 can move to the opposite side under the limitation of two adjacent limiting telescopic rods 881, and then be inserted into the inner cavity of the adjacent slot 7. This facilitates the installation of the flexible protective cap 3 and improves the stability of the connection between the flexible protective cap 3 and the clamp 2, thereby improving the subsequent protection effect of the flexible protective cap 3. When protecting the drive groove 811, the protective plate 51 can be slid to one side. Since the protective plate 51 and the T-shaped connecting block 53 are both arc-shaped on opposite sides, the T-shaped connecting block 53 can be inserted into the inner cavity of the connecting groove 52 under the action of the compression telescopic rod 531 and the compression spring 532. This can limit the position of the protective plate 51 after sliding, thereby improving the protection effect of the drive plate 81.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rust-resistant hook pin, comprising a hook pin body (1) and a clip (2) fixedly installed on the top of the hook pin body (1), wherein a fixing hole (4) is provided on the front side of the hook pin body (1) near the bottom, and a flexible protective cap (3) is provided on the top of the clip (2), characterized in that: The bottom of the flexible protective cap (3) is fixedly installed with a vertical block (6), and slots (7) are provided on both sides near the bottom of the vertical block (6). A protective component (5) is provided on the rear side of the clamp (2), and a connecting component (8) is provided in the inner cavity of the clamp (2). The connecting component (8) includes a worm (82) that moves through the rear side of the inner cavity of the clamp (2) near the bottom and a drive disk (81) fixedly installed at the rear end of the worm (82). A worm wheel (83) is engaged on one side of the worm (82), and a vertical rod (8) is provided through the top center of the worm wheel (83). 4) The bottom end of the upright (84) is rotatably connected to the bottom of the inner cavity of the chuck (2). A gear (85) is fixedly sleeved on the outer periphery of the upright (84) near the bottom end. A rack plate (86) meshes with both the front and rear sides of the gear (85). The bottom of the rack plate (86) is slidably connected to the bottom of the inner cavity of the chuck (2). A bent rod (87) is fixedly installed at the middle position of the rear side of the rack plate (86). A T-shaped plug (88) is fixedly installed at the opposite end of the bent rod (87). The T-shaped plug (88) is movably inserted into the inner cavity of the adjacent slot (7).

2. The anti-corrosion hook pin according to claim 1, characterized in that: On the opposite side of the T-shaped insert (88), near the front and rear sides, a limiting telescopic rod (881) is fixedly installed, and the ends of the limiting telescopic rod (881) are fixedly connected to the inner cavity sidewall of the adjacent clamp (2).

3. The anti-corrosion hook pin according to claim 1, characterized in that: The drive disk (81) has a drive groove (811) on its rear side.

4. The anti-corrosion hook pin according to claim 1, characterized in that: A fixing ring (61) is fixedly sleeved on the outer periphery of the vertical block (6) near the middle position. Several connecting blocks (62) are fixedly installed at the bottom of the fixing ring (61). Several slots (63) are opened on the top of the card head (2), and the bottom of the connecting blocks (62) are respectively movably inserted into the inner cavity of the adjacent slots (63).

5. A rust-resistant hook pin according to claim 4, characterized in that: Several of the connecting blocks (62) and slots (63) are arranged in a circular array with the bottom center of the fixing ring (61) as the center.

6. The anti-corrosion hook pin according to claim 1, characterized in that: The protective component (5) includes a protective plate (51) slidably connected to the middle position of the rear side of the card head (2) and a connecting groove (52) opened at the middle position of the top of the protective plate (51). A T-shaped connecting block (53) is movably inserted into the inner cavity of the connecting groove (52). A vertical rod (54) is fixedly installed on the top of the T-shaped connecting block (53). A handle (56) is fixedly installed on the top of the vertical rod (54). A fixing plate (55) is movably sleeved on the outer periphery of the vertical rod (54) near the top. The front side of the fixing plate (55) is fixedly connected to the card head (2).

7. A rust-resistant hook pin according to claim 6, characterized in that: The top of the T-shaped connecting block (53) is uniformly fixed with compression telescopic rods (531) near the front and rear sides, and the top of the compression telescopic rods (531) is fixedly connected to the fixing plate (55). The outer periphery of the compression telescopic rods (531) is movably sleeved with compression springs (532), and the top and bottom of the compression springs (532) are fixedly connected to the fixing plate (55) and the T-shaped connecting block (53) respectively.

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