Railway wagon locking torsion spring lock

Abstract

The utility model discloses a railway wagon locking torsion spring lock, including the first mounting plate of installation on the carriage and the second mounting plate of installation on the door, one side of second mounting plate is equipped with the lock hole, and one side fixed connection of first mounting plate has two support plates, and the rotatory installation of the embedded joint bearing between two support plates has the rotating link, and the one end of rotating link can pass from the lock hole, and the middle part fixed connection of rotating link has the square, and the one end fixed connection of rotating link has two lock plates, one side fixed splicing of support plate has the first connecting rod, and the fixed splicing of two second connecting rods on rotating link has, and the outer wall sleeve joint of rotating link has two torsion springs. The utility model discloses through the elastic force effect of tension spring makes first limit seat reset card column square, thereby keeps the lock plate vertical placement state, and further further to the door locking, thereby promotes the locking effect of door and carriage.

Description

Technical Field

[0001] This utility model relates to the field of torsion spring lock technology, and in particular to a railway freight car locking torsion spring lock. Background Technology

[0002] Currently, after the doors on railway freight cars are closed, they are locked by torsion spring locks to prevent goods from falling out while the freight cars are moving, thus ensuring the safe transport of goods in the freight cars.

[0003] Among them, a search revealed Chinese patent CN211115284U, which discloses a torsion spring lock for locking railway freight cars. In the application of the above patent, when the railway freight car moves, the locking plate connected to the torsion spring is unstable on one side of the lock hole, resulting in poor locking effect between the freight car and the door connected by the torsion spring lock. Therefore, in order to advance the industry's technology, better realize the locking function of the torsion spring lock for railway freight cars, and improve the core technology competitiveness, this application proposes a new implementation scheme that is different from the structure and application method of the torsion spring lock in the prior art. Summary of the Invention

[0004] The purpose of this utility model is to solve the problem that when existing railway freight cars are in motion, the locking plate connected to the torsion spring in the torsion spring lock is unstable on one side of the lock hole, resulting in poor locking effect of the torsion spring lock connecting the freight car and the door. Therefore, a railway freight car locking torsion spring lock is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A railway freight car locking torsion spring lock includes a first mounting plate installed on the car body and a second mounting plate installed on the car door. A lock hole is provided on one side of the second mounting plate. Two support plates are fixedly connected to one side of the first mounting plate. A rotating rod is rotatably mounted between the two support plates via an interlocking bearing. One end of the rotating rod passes through the lock hole. A block is fixedly connected to the middle part of the rotating rod. Two locking plates are fixedly connected to one end of the rotating rod. A first connecting rod is fixedly inserted into one side of the support plate. Two second connecting rods are fixedly inserted into the rotating rod. Two torsion springs are sleeved on the outer wall of the rotating rod. The two ends of the torsion springs are respectively wound around the first and second connecting rods. A limiting assembly is provided on the top of the block. The limiting assembly includes a fixed shell, which is fixed to one side of the first mounting plate by bolts. A first limiting seat is slidably connected inside the fixed shell, and the bottom of the first limiting seat is engaged with the block.

[0007] Furthermore, a vertical rod is fixedly connected to the top inner wall of the fixed shell, and a tension spring is sleeved on the outer wall of the vertical rod. One end of the tension spring contacts the top inner wall of the fixed shell, and the other end of the tension spring contacts the top of the first limiting seat.

[0008] Furthermore, a slider is fixedly connected to one side of the first limiting seat, and a groove is provided on one side of the fixed shell, in which the slider slides.

[0009] Furthermore, a fixing cover is fixedly connected to the outer side of the two support plates, and the fixing cover covers the outside of the torsion spring.

[0010] Furthermore, a protective cover is fixedly connected to one side of the second mounting plate, and the protective cover covers the outside of the lock hole.

[0011] Furthermore, a knob is fixedly connected to one end of the rotating rod, and the outer wall of the knob is provided with an anti-slip groove.

[0012] Furthermore, a second limiting seat is fixedly connected to one side of the first mounting plate, and the second limiting seat is located at one end of the fixed cover.

[0013] Furthermore, a fixing block is fixedly connected to the top of the rotating rod, and the fixing block can contact the second limiting seat.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. By using the elastic force of the tension spring to reset the first limit seat and the locking block, the locking plate is kept in a vertical position, thereby further locking the door and improving the locking effect between the door and the car body.

[0016] 2. The use of two torsion springs ensures that the locking effect can still be achieved even if one of the torsion springs fails, thus guaranteeing the locking of the car door. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a railway freight car locking torsion spring lock proposed in this utility model;

[0018] Figure 2 This is a front view structural diagram of a railway freight car locking torsion spring lock proposed in this utility model;

[0019] Figure 3 This is a partially enlarged structural diagram of a railway freight car locking torsion spring lock proposed in this utility model;

[0020] Figure 4 This is a cross-sectional side view of a railway freight car locking torsion spring lock proposed in this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the rotating rod of a railway freight car locking torsion spring lock according to the present invention.

[0022] In the diagram: 1. First mounting plate; 2. Second mounting plate; 3. Lock hole; 4. Support plate; 5. Rotating rod; 6. Block; 7. Locking plate; 8. First connecting rod; 9. Second connecting rod; 10. Torsion spring; 11. Limiting assembly; 1101. Fixing shell; 1102. First limiting seat; 1103. Vertical rod; 1104. Tension spring; 1105. Slider; 12. Fixing cover; 13. Protective cover; 14. Knob; 15. Fixing block; 16. Second limiting seat. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-5 A railway freight car locking torsion spring lock includes a first mounting plate 1 installed on the car body and a second mounting plate 2 installed on the car door. The second mounting plate 2 has a lock hole 3 on one side. Two support plates 4 are welded to one side of the first mounting plate 1. A rotating rod 5 is rotatably installed between the two support plates 4 through an interlocking bearing. One end of the rotating rod 5 can pass through the lock hole 3. A square block 6 is welded to the middle part of the rotating rod 5. Two locking plates 7 are welded to one end of the rotating rod 5. A knob 14 is welded to one end of the rotating rod 5. Turning the knob 14 drives the rotating rod 5 to rotate, thereby rotating the locking plates 7 to a horizontal position so that the locking plates 7 can pass through the lock hole 3.

[0025] A first connecting rod 8 is fixedly inserted into one side of the support plate 4, and two second connecting rods 9 are fixedly inserted into the rotating rod 5. Two torsion springs 10 are sleeved on the outer wall of the rotating rod 5. The two ends of the torsion springs 10 are respectively connected to the first connecting rod 8 and the second connecting rod 9. Under the action of the torsion springs 10, the rotating rod 5 rotates and resets, thereby driving the locking plate 7 to rotate, and then rotating the locking plate 7 to a vertical position, thereby locking the car door.

[0026] The top of the block 6 is provided with a limiting component 11, which includes a fixed shell 1101. The fixed shell 1101 is fixed to one side of the first mounting plate 1 by bolts. A first limiting seat 1102 is slidably connected inside the fixed shell 1101. The bottom of the first limiting seat 1102 is engaged with the block 6. A slider 1105 is welded to one side of the first limiting seat 1102. A sliding groove is provided on one side of the fixed shell 1101. The slider 1105 slides in the sliding groove. Lifting the slider 1105 upward causes the first limiting seat 1102 to move upward, thereby disengaging the first limiting seat 1102 from the block 6.

[0027] A vertical rod 1103 is welded to the top inner wall of the fixed housing 1101. A tension spring 1104 is sleeved on the outer wall of the vertical rod 1103. One end of the tension spring 1104 contacts the top inner wall of the fixed housing 1101, and the other end of the tension spring 1104 contacts the top of the first limiting seat 1102. Under the elastic force of the tension spring 1104, the first limiting seat 1102 locks the column block 6, thereby keeping the lock plate 7 in a vertical position, and further locking the door.

[0028] The outer sides of the two support plates 4 are fixed with fixing covers 12 by bolts. The fixing covers 12 cover the outside of the torsion spring 10, thereby protecting the torsion spring 10.

[0029] A protective cover 13 is fixed to one side of the second mounting plate 2 by bolts. The protective cover 13 covers the outside of the lock hole 3, thereby protecting the lock plate 7.

[0030] The outer wall of the knob 14 is provided with anti-slip grooves to facilitate the operation of the knob 14. A second limiting seat 16 is welded to one side of the first mounting plate 1. The second limiting seat 16 is located at one end of the fixed cover 12. A fixing block 15 is welded to the top of the rotating rod 5. The fixing block 15 can contact the second limiting seat 16 to limit the rotation of the rotating rod 5.

[0031] The working principle of this embodiment is as follows: When in use, firstly, lift the slider 1105 upward to move the first limiting seat 1102 upward, thereby disengaging the first limiting seat 1102 from the block 6 and compressing the tension spring 1104. At this time, without releasing the slider 1105, turn the knob 14 clockwise to rotate the rotating rod 5, thereby rotating the locking plate 7 to a horizontal position, while simultaneously causing the torsion spring 10 to contract. Then, release the slider 1105, and under the elastic force of the tension spring 1104, the first limiting seat 1102 resets to the locking block 6, thereby maintaining the locking plate 7 in a horizontal position.

[0032] Next, the car door is closed, causing the second mounting plate 2 to rotate until the lock plate 7 passes through the lock hole 3. Then, the slider 1105 is lifted upwards, causing the first limiting seat 1102 to move upwards, thereby releasing the first limiting seat 1102 from the locking state of the block 6. At the same time, under the action of the torsion spring 10, the rotating rod 5 rotates to reset, thereby causing the lock plate 7 to rotate and then rotate the lock plate 7 to a vertical position, thereby locking the car door. Then, the slider 1105 is released, and under the elastic force of the tension spring 1104, the first limiting seat 1102 resets the locking block 6, thereby keeping the lock plate 7 in a vertical position, and further locking the car door.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A railway freight car locking torsion spring lock, comprising a first mounting plate (1) installed on the freight car and a second mounting plate (2) installed on the freight door, characterized in that, The second mounting plate (2) has a lock hole (3) on one side. Two support plates (4) are fixedly connected to one side of the first mounting plate (1). A rotating rod (5) is rotatably mounted between the two support plates (4) through an interlocking bearing. One end of the rotating rod (5) can pass through the lock hole (3). A block (6) is fixedly connected to the middle part of the rotating rod (5). Two locking plates (7) are fixedly connected to one end of the rotating rod (5). A first connecting rod (8) is fixedly inserted into one side of the support plate (4). Two second connecting rods are fixedly inserted into the rotating rod (5). 9) Two torsion springs (10) are sleeved on the outer wall of the rotating rod (5). The two ends of the torsion springs (10) are respectively connected to the first connecting rod (8) and the second connecting rod (9). The top of the block (6) is provided with a limiting component (11). The limiting component (11) includes a fixed shell (1101). The fixed shell (1101) is fixed to one side of the first mounting plate (1) by bolts. The first limiting seat (1102) is slidably connected inside the fixed shell (1101). The bottom of the first limiting seat (1102) is engaged with the block (6).

2. The railway freight car locking torsion spring lock according to claim 1, characterized in that, A vertical rod (1103) is fixedly connected to the top inner wall of the fixed shell (1101), and a tension spring (1104) is sleeved on the outer wall of the vertical rod (1103). One end of the tension spring (1104) contacts the top inner wall of the fixed shell (1101), and the other end of the tension spring (1104) contacts the top of the first limiting seat (1102).

3. A railway freight car locking torsion spring lock according to claim 1, characterized in that, A slider (1105) is fixedly connected to one side of the first limiting seat (1102), and a groove is provided on one side of the fixed shell (1101), in which the slider (1105) slides.

4. A railway freight car locking torsion spring lock according to claim 1, characterized in that, A fixing cover (12) is fixedly connected to the outside of the two support plates (4), and the fixing cover (12) covers the outside of the torsion spring (10).

5. A railway freight car locking torsion spring lock according to claim 1, characterized in that, A protective cover (13) is fixedly connected to one side of the second mounting plate (2), and the protective cover (13) covers the outside of the lock hole (3).

6. A railway freight car locking torsion spring lock according to claim 1, characterized in that, One end of the rotating rod (5) is fixedly connected to a knob (14), and the outer wall of the knob (14) is provided with an anti-slip groove.

7. A railway freight car locking torsion spring lock according to claim 4, characterized in that, A second limiting seat (16) is fixedly connected to one side of the first mounting plate (1), and the second limiting seat (16) is located at one end of the fixed cover (12).

8. A railway freight car locking torsion spring lock according to claim 1, characterized in that, The top of the rotating rod (5) is fixedly connected to a fixing block (15), which can contact the second limiting seat (16).

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