Door of anti-vibration electrical control cabinet for train

Abstract

A door of an anti-vibration electrical control cabinet for a train comprises a normally-closed large door and a normally-open small door arranged on the normally-closed large door, and an anti-vibration hasp piece used for locking the normally-closed large door is arranged between the normally-closed large door and a cabinet body of the electrical control cabinet. And a triangular mandrel lock which is used for closing the normally-open small door on the normally-closed large door and preventing self-transmission loosening is arranged between the normally-open small door and the cabinet body of the electrical control cabinet. The electric control cabinet has the effects that when a train runs on an unsmooth roadbed track and in a severe wind and sand environment, the door of the electric control cabinet cannot be automatically opened, the relative leakproofness of the space in the cabinet is ensured, and erosion of local wind and sand and acid, alkali and salt mist contained in the air is avoided; the normally-closed large door or the normally-open small door can be selectively opened or closed according to needs, and the normally-closed large door is relatively difficult to keep good leakproofness, so that the normally-closed large door does not need to be opened.

Description

Technical Field

[0001] The utility model relates to a door of a vibration-resistant electric control cabinet for a train, belonging to the technical field of electric 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 lock loosening, 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 cabinet 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 focuses on the cabinet door, which is required to be locked during operation but easy to open.

[0005] The technical problem to be solved by the utility model is: how to provide a door for a vibration-resistant electrical control cabinet so that the door can be locked in a vibration-resistant manner and can be easily opened.

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

[0007] A door of a vibration-resistant electrical control cabinet for a train comprises a normally closed main door and a normally open small door arranged on the normally closed main door. A vibration-resistant fastener for locking the normally closed main door is provided between the normally closed main door and the cabinet body of the electrical control cabinet. A triangular core shaft lock for closing the normally open small door to the normally closed main door and preventing it from loosening on its own is provided between the normally open small door and the cabinet body of the electrical control cabinet.

[0008] The anti-vibration fastener includes a fixing plate 1, a fixing plate 2 and an intermediate overlapping plate. One end of the fixing plate 1 is fixed to the normally closed door by welding, one end of the fixing plate 2 is fixed to the cabinet body of the electrical control cabinet by welding, one end of the intermediate overlapping plate is overlapped with the fixing plate 1, and the other end is detachably connected to the fixing plate 2.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] A shock-absorbing gasket compressed by the connecting panel and the fixing plate 2 is provided between the connecting panel on the outer periphery of the directional tube; a vibration-absorbing rubber layer bonded by vulcanization is provided on the side of the lap panel of the intermediate lap plate facing the fixing plate 1, and the lap panel of the intermediate lap plate is pressed on the fixing plate 1 through the vibration-absorbing rubber layer.

[0013] The triangular core shaft lock includes a triangular core shaft, a locking bolt and a limiting slot. The triangular core shaft is installed on the normally open small door and can rotate. The locking bolt is fixed to the inner end of the triangular core shaft at an angle perpendicular to the triangular core shaft and can rotate with the triangular core shaft. The mounting panel inside the cabinet body is provided with a locking plate located on one side of the triangular core shaft. The limiting slot is vertically arranged on the locking plate. The locking bolt can be rotated into and out of the limiting slot. When it is rotated into the limiting slot, the normally open small door is locked.

[0014] The lower bottom wall of the limiting slot is close to the height of the triangular core shaft, which prevents the lock bolt from rotating downward when vibrating.

[0015] A reinforced lock is provided between the normally open small door and the normally closed main door, the reinforced lock comprising a lap block and a latch member, the latch member comprising a socket and a latch, a vertical latch groove being provided on the socket, a pin hole 1 being provided below the latch groove, the socket being fixed on the normally closed main door next to the normally open small door, one end of the lap block being fixed on the normally open small door, the other end extending to below the socket, and a pin hole 2 being provided correspondingly below the pin hole 1, the latch being installed in the latch groove and the pin hole 1 of the socket and being able to be drawn up and down, and when the normally open small door is closed, the lower end of the latch falls into the pin hole 2. Beneficial effects

[0016] 1. It can ensure that the door of the electrical control cabinet will not open automatically when the train is running on uneven track and in a severe windy and sandy environment, ensuring that the space inside the cabinet is relatively airtight and avoiding erosion by local wind and sand and acid, alkali and salt mist in the air;

[0017] 2. You can choose to open or close the normally closed main door or the normally open small door as needed. The normally closed main door is relatively difficult to maintain good sealing, so it should not be opened unless necessary. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional schematic diagram of the electrical control cabinet;

[0019] Figure 2 is a three-dimensional schematic diagram of the fastener according to Example 1 in the fastened state;

[0020] Figure 3 is a three-dimensional schematic diagram of the middle fastener described in Example 1;

[0021] Figure 4 is a three-dimensional schematic diagram of the vibration-damping washer described in Example 1;

[0022] Figure 5 This is a three-dimensional schematic diagram of the triangular spindle lock described in Example 1;

[0023] Figure 6 This is a three-dimensional schematic diagram of the reinforced lock described in Example 2.

[0024] In the figure: 1. Cabinet body; 2. Normally closed main door; 3. Normally open small door; 4. Anti-vibration fastener; 41. Fixed plate 1; 42. Fixed plate 2; 43. Intermediate overlapping plate; 431. Overlapping panel; 432. Transition panel; 433. Connecting panel; 44. Bolt; 45. Nut; 46. Spring washer; 47. Orienting tube; 48. Shock-absorbing washer; 49. Vibration-absorbing rubber layer; 5. Triangular core shaft lock; 51. Triangular core shaft; 52. Lock bolt; 53. Locking plate; 531. Limiting slot; 6. Reinforced lock; 61. Overlapping block; 62. Latch piece; 621. Socket; 6211. Latch slot; 63. Latch. DETAILED DESCRIPTION

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

[0026] like Figure 1As shown, a door of a vibration-resistant electrical control cabinet for trains includes a normally closed main door 2 and a normally open small door 3 provided on the normally closed main door 2. An anti-vibration fastener 4 is provided between the normally closed main door 2 and the cabinet body 1 of the electrical control cabinet for locking the normally closed main door 2. A triangular core shaft lock 5 is provided between the normally open small door 3 and the cabinet body 1 of the electrical control cabinet for locking the normally open small door 3 to the normally closed main door 2 to prevent it from loosening on its own. The normally closed main door 2 is used to close the large front space of the electrical control cabinet. It is normally closed and is only opened when maintenance is required. The normally open small door 3 closes a smaller area on the front of the electrical control cabinet and is often opened for operation. The anti-vibration fastener 4 has an anti-vibration and vibration-damping function, and the triangular core shaft lock 5 can prevent it from loosening on its own. Both can only be opened manually and cannot be opened by normal vibration or strong wind. In this way, it can be ensured that when the train is running on uneven roadbed tracks and in harsh windy and sandy environments, the door of its electrical control cabinet will not open automatically, ensuring that the space inside the cabinet is relatively airtight and avoiding erosion by local wind and sand and acid, alkali and salt mist in the air.

[0027] like Figure 2 As shown in FIG. 5 , the anti-vibration fastener 4 comprises a first fixing plate 41, a second fixing plate 42, and an intermediate overlapping plate 43. One end of the first fixing plate 41 is welded to the normally closed door 2, while one end of the second fixing plate 42 is welded to the electrical control cabinet to prevent loosening during strong vibrations. The intermediate overlapping plate 43 overlaps the first fixing plate 41 at one end and is detachably connected to the second fixing plate 42 at the other end. The intermediate overlapping plate 43 can be modified as needed to adjust the spacing between the first fixing plate 41 and the second fixing plate 42.

[0028] Both the middle lap plate 43 and the second fixing plate 42 are provided with bolt holes, and bolts 44 are passed through the bolt holes on the middle lap plate 43 and the bolt holes on the second fixing plate 42 and then connected with nuts 45. Spring washers 46 are provided between the screw handle of the bolt 44 and the first fixing plate 41 and between the nut 45 and the second fixing plate 42 to prevent loosening.

[0029] The intermediate lap plate 43 is Z-shaped and consists of a lap panel 431, a transition panel 432, and a connection panel 433. The bolt holes on the intermediate lap plate 43 are located on the connection panel 433. Thus, the spacing between the first and second fixing plates 41, 42 can be determined by the length of the transition panel 432.

[0030] A directional tube 47 is provided on the side of the connecting panel 433 of the middle lap plate 43 facing the fixed plate 2 42. The bolt holes on the connecting panel 433 are connected to the tube holes of the directional tube 47. The bolts 44 are located in the tube holes of the directional tube 47, thereby ensuring that the axis of the bolts 44 is perpendicular to the connecting panel 433, so that the lap panel 431 can normally apply restraining pressure to the fixed plate 1 41.

[0031] A vibration-damping washer 48 is installed between the connecting panel 433 on the outer periphery of the directional tube 47 and the second fixing plate 42. This is compressed by the connecting panel 433 and the second fixing plate 42, effectively suppressing and attenuating vibrations generated by the first fixing plate 41 and the second fixing plate 42. The side of the lapped panel 431 of the intermediate lapped plate 43 facing the first fixing plate 41 has a vibration-damping rubber layer 49 bonded by vulcanization. The lapped panel 431 of the intermediate lapped plate 43 is pressed against the first fixing plate 41 via the vibration-damping rubber layer 49, thereby suppressing and attenuating vibrations between the intermediate lapped plate 43 and the first fixing plate 41.

[0032] The triangular spindle lock 5 includes a triangular spindle 51, a locking bolt 52, and a limiting slot 531. The triangular spindle 51 is mounted on the normally open small door 3 and can rotate. The locking bolt 52 is fixed to the inner end of the triangular spindle 51 at an angle perpendicular to the triangular spindle 51 and can rotate with the triangular spindle 51. The mounting panel inside the cabinet 1 is provided with a locking plate 53 located on one side of the triangular spindle 51. The limiting slot 531 is vertically arranged on the locking plate 53. The locking bolt 52 can rotate in and out of the limiting slot 531. When it rotates into the limiting slot 531, it locks the normally open small door. The bottom wall of the limiting slot 531 is close to the height of the triangular spindle 51, preventing the locking bolt 52 from rotating downward and loosening due to vibration. Example 2

[0033] like Figure 6 As shown, this embodiment differs from the first embodiment in that a reinforced lock 6 is provided between the normally-open small door 3 and the normally-closed main door 2. The reinforced lock 6 comprises a lap block 61 and a latch member 62. The latch member 62 comprises a socket 621 and a latch pin 63. The socket 621 is provided with a vertical latch pin slot 6211, below which is a first pin hole. The socket 621 is fixed to the normally-closed main door 2 next to the normally-open small door 3. One end of the lap block 61 is fixed to the normally-open small door, while the other end extends below the socket 621. A second pin hole is provided below the first pin hole. The latch pin 63 is mounted in the latch pin slot 6211 and the first pin hole of the socket 621 and can be moved up and down. When the normally-open small door 3 is closed, the lower end of the latch pin 63 falls into the second pin hole. The latch pin 63 can only be unlocked by manually lifting it upward. This provides an additional safeguard against the normally-open small door opening.

[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 door for a vibration-resistant electrical control cabinet for a train, characterized by: The invention comprises a normally closed main door (2) and a normally open small door (3) provided on the normally closed main door (2); an anti-vibration fastener (4) for locking the normally closed main door (2) is provided between the normally closed main door (2) and the cabinet body (1) of the electrical control cabinet; and a triangular core shaft lock (5) for preventing the normally open small door (3) from self-loosening is provided between the normally open small door (3) and the cabinet body (1) of the electrical control cabinet.

2. The door of the vibration-resistant electric control cabinet for trains according to claim 1, characterized in that: The anti-vibration fastener (4) comprises a fixing plate 1 (41), a fixing plate 2 (42) and an intermediate lap plate (43), one end of the fixing plate 1 (41) is fixed to the normally closed door (2) by welding, one end of the fixing plate 2 (42) is fixed to the cabinet body of the electrical control cabinet by welding, one end of the intermediate lap plate (43) is lapped with the fixing plate 1 (41), and the other end is detachably connected to the fixing plate 2 (42).

3. The door of the vibration-resistant electric control cabinet for trains according to claim 2, characterized in that: The intermediate lap plate (43) and the second fixing plate (42) are both provided with bolt holes, and the bolts (44) are passed through the bolt holes on the intermediate lap plate (43) and the bolt holes on the second fixing plate (42) and then connected with the nuts (45). Spring washers (46) are provided between the shank of the bolt (44) and the first fixing plate (41) and between the nut (45) and the second fixing plate (42) to prevent loosening.

4. The door of the vibration-resistant electric control cabinet for train according to claim 3, characterized in that: The intermediate lap plate (43) is Z-shaped and is composed of a lap panel (431), a transition panel (432) and a connection panel (433). The bolt holes on the intermediate lap plate (43) are provided on the connection panel (433).

5. The door of the vibration-resistant electric control cabinet for train according to claim 4, characterized in that: A directional tube (47) is provided on the side of the connecting panel (433) of the intermediate lap plate (43) facing the second fixing plate (42). The bolt holes on the connecting panel (433) are communicated with the tube holes of the directional tube (47), and the bolts (44) are located in the tube holes of the directional tube (47).

6. The door of the vibration-resistant electric control cabinet for train according to claim 5, characterized in that: A shock-absorbing washer (48) compressed by the connecting panel (433) and the second fixing plate (42) is provided between the connecting panel (433) on the outer periphery of the directional tube (47); a shock-absorbing rubber layer (49) bonded by vulcanization is provided on the side of the connecting panel (431) of the intermediate lap plate (43) facing the first fixing plate (41), and the connecting panel (431) of the intermediate lap plate (43) is pressed onto the first fixing plate (41) through the shock-absorbing rubber layer (49).

7. The door of the vibration-resistant electric control cabinet for train according to claim 1, characterized in that: The triangular core shaft lock (5) comprises a triangular core shaft (51), a locking bolt (52) and a limiting slot (531); the triangular core shaft (51) is mounted on the normally open small door (3) and is rotatable; the locking bolt (52) is fixed to the inner end of the triangular core shaft (51) at an angle perpendicular to the triangular core shaft (51) and is rotatable along with the triangular core shaft (51); a locking plate (53) located on one side of the triangular core shaft (51) is provided on the mounting panel in the cabinet (1); the limiting slot (531) is vertically arranged on the locking plate (53); the locking bolt (52) can be rotated into and out of the limiting slot (531); and when rotated into the limiting slot (531), the normally open small door is locked.

8. The door of the vibration-resistant electric control cabinet for trains according to claim 7, characterized in that: The lower bottom wall of the limiting slot (531) is close to the height of the triangular core shaft (51), preventing the locking bolt (52) from rotating downward when vibrating.

9. The door of the vibration-resistant electric control cabinet for train according to claim 1, characterized in that: A reinforced lock (6) is provided between the normally open small door (3) and the normally closed large door (2). The reinforced lock (6) includes a lap block (61) and a latch member (62). The latch member (62) includes a socket (621) and a latch (63). A vertical latch groove (6211) is provided on the socket (621). A pin hole 1 is provided below the latch groove (6211). The socket (621) is fixed to the normally closed large door (2) next to the normally open small door (3). One end of the lap block (61) is fixed to the normally open small door, and the other end extends to the bottom of the socket (621). A pin hole 2 is provided below the pin hole 1. The latch (63) is installed in the latch groove (6211) and the pin hole 1 of the socket (621) and can be pulled up and down. When the normally open small door (3) is closed, the lower end of the latch (63) falls into the pin hole 2.

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