Hasp piece of anti-vibration electric control cabinet normally-closed gate for train

Abstract

The utility model discloses an anti-vibration electrical control cabinet normally-closed gate hasp piece for a train, which comprises a first fixing plate, a second fixing plate and a middle lap joint plate, one end of the first fixing plate is fixed on the normally-closed gate, one end of the second fixing plate is fixed on a cabinet body of an electrical control cabinet, one end of the middle lap joint plate is in lap joint with the first fixing plate, and the other end of the middle lap joint plate is in lap joint with the second fixing plate. And the other end is detachably connected with the fixing plate II. The middle lap joint plate is Z-shaped and is formed by connecting a lap joint panel, a transition panel and a connecting panel, and a bolt hole in the middle lap joint plate is formed in the connecting panel. A directional pipe is arranged on the side, facing the second fixing plate, of the connecting face plate of the middle lap joint plate, a bolt hole in the connecting face plate is communicated with a pipe hole of the directional pipe, and the bolt is located in the pipe hole of the directional pipe. The locking device has the advantages that the normally-closed gate can be reliably locked, the normally-closed gate can be opened only during manual operation, and it is guaranteed that the normally-closed gate cannot be automatically opened due to vibration in the train running process; the structure is simple, and the damping performance is reliable.

Description

Technical Field

[0001] The utility model relates to a buckle fastener for a normally closed door of a vibration-resistant electrical control cabinet for a train, belonging to the technical field of electrical control equipment. Background Art

[0002] The train electrical control cabinet is a special cabinet for electric and pneumatic control of the train. The electrical components in the cabinet are not allowed to be contaminated by dust. The gas supplied in the cabinet is generally filtered before being transported into the cabinet, so it needs to have relatively strict airtightness.

[0003] Trains operating in desert regions experience irregular settlement of the roadbed under stress due to the region's soft and inconsistent geology. This, combined with the constantly changing intensity and direction of wind and sand, results in vibration levels far exceeding those experienced by trains operating on domestic lines. Electrical control cabinets, which typically last their entire lifespan in China, can sometimes experience loose locks, automatic door opening, or deformation after just one single trip in this region without special vibration protection. This can lead to an influx of windblown sand, making it extremely difficult to clean. Furthermore, the air in this region is highly acidic, alkaline, and salty. Damaged doors expose electrical components to air, which can be easily corroded, significantly shortening their lifespan. Utility Model Content

[0004] To solve the above problems, our company has developed a vibration-resistant electrical control cabinet for trains (a patent application was filed on the same day as this application). The control cabinet involves a normally closed door, which is not opened frequently under normal circumstances and is only opened during maintenance. To this end, the normally closed door needs to be equipped with a locking mechanism, which is required to lock the normally closed door in an anti-vibration manner under normal circumstances, but can be opened when necessary.

[0005] The technical problem to be solved by the utility model is: how to provide a locking mechanism for the normally closed door of the anti-vibration electrical control cabinet so that the normally closed door can be locked in an anti-vibration manner at ordinary times and can be opened when necessary.

[0006] In view of the above problems, the technical solutions proposed by the present invention are:

[0007] A fastener for a normally closed door of a vibration-resistant electrical control cabinet for a train comprises a first fixing plate, a second fixing plate and an intermediate overlapping plate. One end of the first fixing plate is fixed to the normally closed door, one end of the second fixing plate is fixed to the cabinet body of the electrical control cabinet, one end of the intermediate overlapping plate overlaps the first fixing plate and the other end is detachably connected to the second fixing plate.

[0008] The end of the fixed plate 1 connected to the normally closed door has a seat plate 1 integrally formed in an L shape with the fixed plate 1, and the end of the fixed plate 2 connected to the cabinet has a seat plate 2 integrally formed in an L shape with the fixed plate 2. The seat plate 1 and the seat plate 2 are fixedly connected to the normally closed door and the cabinet, respectively.

[0009] The seat plate 1 and the seat plate 2 are fixedly connected to the normally closed door and the cabinet body respectively by welding.

[0010] The middle lap plate and the second fixing plate are both provided with bolt holes, and the bolts are passed through the bolt holes on the middle lap plate and the bolt holes on the second fixing plate and then connected with nuts. Spring washers are provided between the bolt shank and the first fixing plate and between the nut and the second fixing plate to prevent loosening.

[0011] The middle lap plate is Z-shaped and is composed of a lap panel, a transition panel and a connection panel. The bolt holes on the middle lap plate are arranged on the connection panel.

[0012] A directional tube is provided on the side of the connecting panel of the middle lap plate facing the second fixing plate. The bolt holes on the connecting panel are communicated with the tube holes of the directional tube, and the bolts are located in the tube holes of the directional tube.

[0013] A shock-absorbing washer compressed by the connecting panel and the second fixing plate is provided between the connecting panel and the second fixing plate on the outer periphery of the directional tube.

[0014] The side of the lap panel of the middle lap plate facing the fixed plate 1 is provided with a vibration-damping rubber layer bonded by vulcanization, and the lap panel of the middle lap plate is pressed on the fixed plate 1 through the vibration-damping rubber layer. Beneficial effects

[0015] 1. It can reliably lock the normally closed door. The normally closed door can only be opened by manual operation to ensure that the door will not open automatically due to vibration during train operation;

[0016] 2. Simple structure and reliable vibration reduction performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of the electrical control cabinet;

[0018] Figure 2 is a three-dimensional schematic diagram of the fastener according to Example 1 in the fastened state;

[0019] Figure 3 is a three-dimensional schematic diagram of the middle fastener described in Example 1;

[0020] Figure 4 is a three-dimensional schematic diagram of the vibration-damping washer described in Example 2;

[0021] Figure 5It is a three-dimensional schematic diagram of the fastener member in the fastened state according to the second embodiment;

[0022] Figure 6 This is a three-dimensional schematic diagram of the middle lap plate described in Example 3;

[0023] Figure 7 It is a three-dimensional schematic diagram of the fastener in the fastened state described in Example 3.

[0024] In the figure: 1. Fixed plate 1; 101. Seat plate 1; 2. Fixed plate 2; 201. Seat plate 2; 3. Intermediate lap plate; 301. Lap panel; 3011. Vibration-damping rubber layer; 302. Transition panel; 303. Connecting panel; 3031. Orienting tube; 4. Bolt; 5. Nut; 6. Spring washer; 7. Shock-damping washer; 100. Electrical control cabinet; 200. Normally closed door. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings: Example 1

[0026] like Figure 1 As shown in FIG. 3 , a fastener for a normally closed door of a vibration-resistant electrical control cabinet for a train comprises a fixing plate 1, a fixing plate 2, and an intermediate overlapping plate 3. One end of the fixing plate 1 is fixed to the normally closed door 200, and one end of the fixing plate 2 is fixed to the cabinet body of the electrical control cabinet 100. One end of the intermediate overlapping plate 3 overlaps the fixing plate 1, and the other end is detachably connected to the fixing plate 2. The purpose of providing the intermediate overlapping plate 3 is to enable the intermediate overlapping plate 3 to be deformed as needed to adjust the spacing between the fixing plates 1 and 2. Under normal circumstances, the normally closed door 200 is in a closed state by the intermediate overlapping plate 3 overlapping the fixing plates 1 and 2. When maintenance is required, the intermediate overlapping plate 3 can be removed to open the normally closed door 200. In this way, the normally closed door 200 can only be opened by manual disassembly, preventing it from opening automatically during strong vibration.

[0027] One end of the fixed plate 1 connected to the normally closed door 200 has a seat plate 101 integrally formed in an L shape with the fixed plate 1, and one end of the fixed plate 2 2 connected to the cabinet has a seat plate 2 201 integrally formed in an L shape with the fixed plate 2 2. The seat plate 101 and the seat plate 201 are fixedly connected to the normally closed door 200 and the cabinet, respectively.

[0028] As an advantage, the seat plate 101 and the seat plate 201 are fixedly connected to the normally closed door 200 and the cabinet body respectively by welding. In this way, it can be ensured that they will not loosen or fall off under strong vibration.

[0029] Both the middle lap plate 3 and the fixed plate 2 are provided with bolt holes, and the bolts 4 pass through the bolt holes on the middle lap plate 3 and the bolt holes on the fixed plate 2 and are connected with the nuts 5. Anti-loosening spring washers 6 are provided between the screw shank of the bolt 4 and the fixed plate 1 and between the nut 5 and the fixed plate 2, so as to prevent the bolts 4 from loosening during the strong vibration process.

[0030] Furthermore, the intermediate lap plate 3 is Z-shaped and is composed of a lap panel 301, a transition panel 302, and a connection panel 303. The bolt holes on the intermediate lap plate 3 are provided on the connection panel 303. This can appropriately increase the distance between the fixing plate 1 and the fixing plate 2.

[0031] Furthermore, a directional tube 3031 is provided on the side of the connecting panel 303 of the middle lap plate 3 facing the fixed plate 2 2, and the bolt hole on the connecting panel 303 is connected to the tube hole of the directional tube 3031, and the bolt 4 is located in the tube hole of the directional tube 3031, thereby ensuring that the axis of the bolt 4 is perpendicular to the connecting panel 303, so that the lap panel 301 can normally apply restraining pressure to the fixed plate 1. Example 2

[0032] like Figure 4 、 5 As shown, the difference from Example 1 is that a shock-absorbing gasket 7 compressed by the connecting panel 303 and the fixing plate 2 2 is provided between the connecting panel 303 on the outer periphery of the directional tube 3031, so as to effectively suppress and attenuate the vibration generated by the fixing plate 1 1 and the fixing plate 2. Example 3

[0033] like Figure 6 、 7 As shown, the difference from the above embodiment is that the lap panel 301 of the middle lap plate 3 has a vibration-damping rubber layer 3011 bonded by vulcanization on the side facing the fixed plate 1, and the lap panel 301 of the middle lap plate 3 is pressed against the fixed plate 1 through the vibration-damping rubber layer 3011, thereby suppressing and attenuating the vibration of the middle lap plate 3 and the fixed plate 1.

[0034] The above embodiments are only used to more clearly describe the present invention and cannot be regarded as limiting the scope of protection covered by the present invention. Any modifications in equivalent forms should be regarded as falling within the scope of protection covered by the present invention.

Claims

1. A fastener for a normally closed door of a vibration-resistant electrical control cabinet for a train, characterized by: It comprises a fixing plate 1 (1), a fixing plate 2 (2) and an intermediate overlapping plate (3), wherein one end of the fixing plate 1 (1) is fixed to a normally closed door (200), one end of the fixing plate 2 (2) is fixed to a cabinet body of an electrical control cabinet (100), one end of the intermediate overlapping plate (3) is overlapped with the fixing plate 1 (1), and the other end is detachably connected to the fixing plate 2 (2).

2. The fastener for the normally closed door of the vibration-resistant electrical control cabinet for trains according to claim 1, characterized in that: The end of the fixed plate 1 (1) connected to the normally closed door (200) has a seat plate 1 (101) integrally formed in an L-shape with the fixed plate 1 (1), and the end of the fixed plate 2 (2) connected to the cabinet has a seat plate 2 (201) integrally formed in an L-shape with the fixed plate 2 (2), and the seat plate 1 (101) and the seat plate 2 (201) are fixedly connected to the normally closed door (200) and the cabinet, respectively.

3. The fastener for the normally closed door of the vibration-resistant electrical control cabinet for trains according to claim 2, characterized in that: The seat plate 1 (101) and the seat plate 2 (201) are fixedly connected to the normally closed door (200) and the cabinet body respectively by welding.

4. The fastener for the normally closed door of the vibration-resistant electrical control cabinet for trains according to claim 1, characterized in that: The intermediate lap plate (3) and the second fixing plate (2) are both provided with bolt holes, and the bolts (4) are passed through the bolt holes on the intermediate lap plate (3) and the bolt holes on the second fixing plate (2) and then connected with the nuts (5). Spring washers (6) are provided between the shank of the bolt (4) and the first fixing plate (1) and between the nut (5) and the second fixing plate (2) to prevent loosening.

5. The fastener for the normally closed door of the vibration-resistant electrical control cabinet for trains according to claim 4, characterized in that: The intermediate lap plate (3) is Z-shaped and is composed of a lap panel (301), a transition panel (302) and a connection panel (303). The bolt holes on the intermediate lap plate (3) are provided on the connection panel (303).

6. The fastener for the normally closed door of the vibration-resistant electrical control cabinet for trains according to claim 5, characterized in that: A directional tube (3031) is provided on the side of the connecting panel (303) of the intermediate lap plate (3) facing the second fixed plate (2), the bolt hole on the connecting panel (303) is communicated with the tube hole of the directional tube (3031), and the bolt (4) is located in the tube hole of the directional tube (3031).

7. The fastener for the normally closed door of the vibration-resistant electrical control cabinet for trains according to claim 6, characterized in that: A shock-absorbing washer (7) compressed by the connecting panel (303) and the second fixing plate (2) is provided between the connecting panel (303) and the second fixing plate (2) on the outer periphery of the directional tube (3031).

8. The fastener for the normally closed door of a vibration-resistant electrical control cabinet for a train according to claim 5, characterized in that: The lap panel (301) of the intermediate lap plate (3) has a vibration-damping rubber layer (3011) bonded by vulcanization on one side of the lap panel (301) facing the fixed plate (1), and the lap panel (301) of the intermediate lap plate (3) is pressed onto the fixed plate (1) via the vibration-damping rubber layer (3011).

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