Fish plate self-locking fastening device

Abstract

The utility model discloses a fishplate self-locking fastening device which comprises a rail, a through hole is formed in the rail, a positioning pin is inserted into the through hole, a pin cap is fixedly welded to one end of the positioning pin, a self-locking head is fixedly welded to the other end of the positioning pin, an opening is formed in the self-locking head, a plug pin is inserted into the opening, and a through hole is formed in the rail. According to the fishplate self-locking fastening device, a positioning pin is inserted into a rail, a rubber shock pad and a fishplate, a self-locking head is extruded by a through hole to contract so as to penetrate through the through hole, when the self-locking head penetrates through the through hole, the self-locking head automatically resets, a clamping gasket is fastened on one side of the self-locking head to generate self-locking, and rapid fixing and mounting are facilitated; the opening is always opened, the self-locking head is prevented from retracting into the through hole, the stress area can be increased through the design of the gasket, locking of the self-locking head is facilitated, the upper reinforcing block and the lower reinforcing block are fixedly welded to the upper end and the lower end of the fishplate correspondingly and tightly attached to the side face of the rail, and the side face of the rail can be reinforced.

Description

Technical Field

[0001] The utility model relates to the technical field of fish plate self-locking devices, in particular to a fish plate self-locking fastening device. Background Art

[0002] The rail connection method is the fishplate connection technology. Fishplates are commonly known as track splints and play a connecting role at the rail joints. The method of using fishplate technology is to use fishplates at the break of two rails, that is, to place two fishplates on both sides of the two rails. The two rails and the fishplates have bolt holes of the same specifications. Bolts are used to fix the two fishplates on the two rails to fix the two rails together, and finally make the two rails become a whole, so that the train can run.

[0003] At present, the rubber shock-absorbing pad is bonded to the outer side of the rail joint and the inner side of the fishplate by bonding materials, and the bolts connect the two rails through two rows of bolt holes. The good shock-absorbing performance of the rubber shock-absorbing pad has a good buffering effect on the vibration generated by the train operation, and plays a certain role in the safety of the train operation. It solves the technical problems that the existing fishplate connection technology cannot ensure that the rails are connected for a long time without loosening and breaking, and cannot reduce the vibration noise generated by the train operation.

[0004] For example, a new type of railway rail fishplate connection joint disclosed in the authorization number CN209836682U includes a rail joint and two fishplates, the two fishplates are respectively installed on both sides of the rail joint by bolts, and also includes a rubber shock-absorbing pad, which is fixed between the rail joint and the fishplate. The utility model also includes an adhesive material, and the rubber shock-absorbing pad is pasted between the rail joint and the fishplate through the adhesive material. However, such a new type of railway rail fishplate connection joint is not convenient for quickly fixing and installing the fishplate, and it is impossible to strengthen the track.

[0005] It can be seen from the solutions disclosed in the above-mentioned existing patent documents that it is not convenient to quickly fix and install the fishplate, and it is impossible to strengthen the track. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The utility model aims to provide a self-locking fastening device for a fish plate, so as to solve the problem that it is inconvenient to quickly fix and install the fish plate and the track cannot be strengthened.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-locking fastening device for a fishplate, comprising a track, a through hole is provided inside the track, a locating pin is inserted inside the through hole, a pin cap is fixedly welded to one end of the locating pin, a self-locking head is fixedly welded to the other end of the locating pin, an opening is provided inside the self-locking head, a plug is inserted inside the opening, a gasket is sleeved on the outer side of one end of the locating pin, a rubber shock-absorbing pad is tightly attached to the side of the track, a fishplate is fixedly adhered to the side of the rubber shock-absorbing pad, an upper reinforcement block is fixedly welded to the upper end of the fishplate, and a lower reinforcement block is fixedly welded to the lower end of the fishplate.

[0008] Preferably, a through hole is provided inside the fishplate, and the side surface of the fishplate is close to the pin cap, and by plugging the positioning pin into the track, the rubber shock-absorbing pad and the fishplate, the self-locking head is squeezed and contracted by the through hole so as to pass through the through hole.

[0009] Preferably, a through hole is provided inside the rubber shock-absorbing pad, and an opening is provided inside one end of the positioning pin. When the self-locking head passes through the through hole, it automatically resets, and the self-locking head fastens the clamping gasket on one side to produce self-locking, which is convenient and quick to fix and install.

[0010] Preferably, one side of the self-locking head is in close contact with the gasket, and the internal sleeve of the gasket is connected to the pin. By inserting the pin into the opening, the opening is always open to prevent the self-locking head from shrinking into the through hole. The design of the gasket can increase the force-bearing area and facilitate the locking of the self-locking head.

[0011] Preferably, the side of the track is in close contact with the upper reinforcement block, and the side of the track is in close contact with the lower reinforcement block. The side of the track can be reinforced by fixing and welding the upper reinforcement block and the lower reinforcement block at the upper and lower ends of the fishtail plate respectively and making them close to the side of the track.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The fish plate of the utility model is provided with a through hole inside, and the side of the fish plate is close to the pin cap. By plugging the positioning pin into the track, the rubber shock-absorbing pad and the fish plate, the self-locking head is squeezed and contracted by the through hole so as to pass through the through hole.

[0014] 2. The rubber shock-absorbing pad of the utility model is provided with a through hole inside, and an opening is provided inside one end of the positioning pin. When the self-locking head passes through the through hole, it automatically resets, and one side of the self-locking head fastens the clamping gasket to produce self-locking, which is convenient and quick to fix and install.

[0015] 3. One side of the self-locking head of the utility model is in close contact with the gasket, and the internal sleeve of the gasket is connected with the pin. By inserting the pin into the opening, the opening is always open to prevent the self-locking head from shrinking into the through hole. The design of the gasket can increase the force-bearing area and facilitate the locking of the self-locking head.

[0016] 4. The side of the track of the utility model is in close contact with the upper reinforcement block, and the side of the track is in close contact with the lower reinforcement block. The side of the track can be reinforced by fixing and welding the upper reinforcement block and the lower reinforcement block on the upper and lower ends of the fishtail plate respectively and making them close to the side of the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an enlarged top view of the latch of the utility model;

[0019] Figure 3 This is an enlarged right view of the gasket of the utility model.

[0020] In the figure: 1 track, 11 through hole, 12 positioning pin, 13 pin cap, 14 self-locking head, 15 opening, 16 latch, 17 gasket, 2 rubber shock-absorbing pad, 21 fishtail plate, 22 upper reinforcement block, 23 lower reinforcement block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-3 A fishplate self-locking fastening device shown in the figure comprises a track 1, a through hole 11 is provided inside the track 1, a positioning pin 12 is inserted inside the through hole 11, a pin cap 13 is fixedly welded to one end of the positioning pin 12, a self-locking head 14 is fixedly welded to the other end of the positioning pin 12, an opening 15 is provided inside the self-locking head 14, a pin 16 is inserted inside the opening 15, a gasket 17 is sleeved on the outer side of one end of the positioning pin 12, a rubber shock-absorbing pad 2 is tightly attached to the side of the track 1, a fishplate 21 is fixedly adhered to the side of the rubber shock-absorbing pad 2, an upper reinforcing block 22 is fixedly welded to the upper end of the fishplate 21, and a lower reinforcing block 23 is fixedly welded to the lower end of the fishplate 21.

[0024] In order to facilitate the rapid and convenient installation of the fish plate 21, a through hole 11 is provided inside the fish plate 21, and the side of the fish plate 21 is close to the pin cap 13. By plugging the locating pin 12 into the rail 1, the rubber shock-absorbing pad 2 and the fish plate 21, the self-locking head 14 is squeezed and contracted by the through hole 11 so as to pass through the through hole 11. The rubber shock-absorbing pad 2 is provided with a through hole 11, and an opening 15 is provided inside one end of the locating pin 12. When the self-locking head 14 passes through the through hole 11, it automatically resets, and the clamping gasket 17 is fastened on one side of the self-locking head 14 to produce self-locking, which is convenient and convenient for rapid and convenient installation.

[0025] In this embodiment, by inserting the positioning pin 12 into the rail 1, the rubber shock-absorbing pad 2 and the fishtail plate 21, the self-locking head 14 is squeezed and contracted by the through hole 11 so as to pass through the through hole 11. When the self-locking head 14 passes through the through hole 11, it automatically resets, and the self-locking head 14 fastens the snap-fit ​​gasket 17 on one side to produce self-locking, which is convenient and quick to fix and install.

[0026] Example 2

[0027] See also Figure 1-3 The present embodiment further explains Example 1. In the figure, a self-locking fastening device for a fish plate comprises a track 1. A through hole 11 is provided inside the track 1. A positioning pin 12 is inserted inside the through hole 11. A pin cap 13 is fixedly welded to one end of the positioning pin 12. A self-locking head 14 is fixedly welded to the other end of the positioning pin 12. An opening 15 is provided inside the self-locking head 14. A pin 16 is inserted inside the opening 15. A gasket 17 is sleeved on the outer side of one end of the positioning pin 12. A rubber shock-absorbing pad 2 is tightly attached to the side of the track 1. A fish plate 21 is fixedly adhered to the side of the rubber shock-absorbing pad 2. An upper reinforcing block 22 is fixedly welded to the upper end of the fish plate 21. A lower reinforcing block 23 is fixedly welded to the lower end of the fish plate 21.

[0028] In order to strengthen the side of the track 1, one side of the self-locking head 14 is close to the gasket 17, and the internal sleeve of the gasket 17 is connected with the pin 16. By inserting the pin 16 into the opening 15, the opening 15 is always open to prevent the self-locking head 14 from shrinking into the through hole 11. The design of the gasket 17 can increase the force-bearing area and facilitate the locking of the self-locking head 14. The side of the track 1 is close to the upper reinforcement block 22, and the side of the track 1 is close to the lower reinforcement block 23. The upper reinforcement block 22 and the lower reinforcement block 23 are fixedly welded to the upper and lower ends of the fishtail plate 21 respectively, and are close to the side of the track 1, so that the side of the track 1 can be strengthened.

[0029] In this embodiment, the opening 15 is always opened by inserting the pin 16 into the opening 15 to prevent the self-locking head 14 from shrinking into the through hole 11. The design of the gasket 17 can increase the force-bearing area, which facilitates the locking of the self-locking head 14. The side of the track 1 can be reinforced by fixing and welding the upper reinforcement block 22 and the lower reinforcement block 23 at the upper and lower ends of the fishtail plate 21 respectively and making them close to the side of the track 1.

[0030] The fish plate self-locking fastening device inserts the positioning pin 12 into the track 1, the rubber shock-absorbing pad 2 and the fish plate 21, and the self-locking head 14 is squeezed and contracted by the through hole 11 so as to pass through the through hole 11. When the self-locking head 14 passes through the through hole 11, it automatically resets. The self-locking head 14 is fastened with a clamping gasket 17 on one side to produce self-locking, which is convenient for quick fixed installation. By inserting the latch 16 into the opening 15, the opening 15 is always open to prevent the self-locking head 14 from shrinking into the through hole 11. The design of the gasket 17 can increase the force-bearing area, which is convenient for the self-locking head 14 to be locked. By fixing and welding the upper reinforcement block 22 and the lower reinforcement block 23 at the upper end and the lower end of the fish plate 21 respectively, and making them close to the side of the track 1, the side of the track 1 can be strengthened.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-locking fastening device for a fish plate, comprising a track (1), characterized in that: The track (1) is provided with a through hole (11) inside, a positioning pin (12) is inserted inside the through hole (11), a pin cap (13) is fixedly welded to one end of the positioning pin (12), a self-locking head (14) is fixedly welded to the other end of the positioning pin (12), an opening (15) is provided inside the self-locking head (14), a plug pin (16) is inserted inside the opening (15), a gasket (17) is sleeved on the outer side of one end of the positioning pin (12), a rubber shock-absorbing pad (2) is tightly attached to the side of the track (1), a fish plate (21) is fixedly adhered to the side of the rubber shock-absorbing pad (2), an upper reinforcing block (22) is fixedly welded to the upper end of the fish plate (21), and a lower reinforcing block (23) is fixedly welded to the lower end of the fish plate (21).

2. A fish plate self-locking fastening device according to claim 1, characterized in that: A through hole (11) is provided inside the fish plate (21), and a side surface of the fish plate (21) is in close contact with the pin cap (13).

3. A fish plate self-locking fastening device according to claim 1, characterized in that: The rubber shock-absorbing pad (2) is provided with a through hole (11) inside, and one end of the positioning pin (12) is provided with an opening (15) inside.

4. A fish plate self-locking fastening device according to claim 1, characterized in that: One side of the self-locking head (14) is in close contact with the gasket (17), and the interior of the gasket (17) is sleeved with the latch pin (16).

5. The fishplate self-locking fastening device according to claim 1, characterized in that: The side surface of the track (1) is in close contact with the upper reinforcement block (22), and the side surface of the track (1) is in close contact with the lower reinforcement block (23).

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