Subway vehicle end junction box access door structure

Abstract

An access door structure of a metro vehicle end junction box relates to the technical field of metro vehicles, can increase the size of an access door to the greatest extent in a limited space, and the access door is mounted in a hanging manner and can be dismounted and mounted by one person. In the subway vehicle end junction box access door structure, a box cover and a box body are mounted in a hanging manner through hanging buckles, and the bottom end of the box cover is connected with the bottom end of the box body in an opening and closing manner through a railway universal four-corner lock; an upper hanging buckle is arranged on the box body, a door plate hanging buckle is welded to the box cover, and the door plate hanging buckle is used for being connected to the upper hanging buckle in a hanging mode.

Description

Technical Field

[0001] This utility model relates to the field of subway vehicle technology, and in particular to a maintenance door structure for a subway car end junction box. Background Technology

[0002] Currently, in existing technologies, subway car inspection doors typically use side openings and are fixed with bolts, which facilitates daily maintenance and provides easy disassembly, rotation, opening and closing, and high protection.

[0003] However, the inventors of this application have discovered that the inspection door fixed with side bolts is not easy for one person to disassemble and install. Utility Model Content

[0004] The purpose of this utility model is to provide a maintenance door structure for a subway car terminal junction box, which can maximize the size of the maintenance door within a limited space, and the maintenance door is installed by hanging and can be disassembled and installed by one person.

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

[0006] A maintenance door structure for a subway car terminal junction box includes: a box body, and a box cover that is hung on the box body via a hook, wherein the bottom end of the box cover is connected to the bottom end of the box body via a railway universal four-corner lock.

[0007] The box body is provided with an upper hook, and the box cover is welded with a door panel hook, which is used to hook onto the upper hook.

[0008] In practical applications, the upper hook has a U-shaped groove, the door panel hook has a through hole, and the through hole has a protrusion; the through hole is used to fit into the U-shaped groove, and the protrusion engages with the U-shaped groove.

[0009] The inner perimeter of the box cover is provided with a waterproof adhesive groove, and a sealing ring is provided inside the waterproof adhesive groove.

[0010] Specifically, the sealing ring is a 15mm thick sealing strip, which is pasted into the waterproof adhesive groove.

[0011] Furthermore, the compression of the sealing strip is 30%.

[0012] Furthermore, both the box body and the box lid are made of stainless steel.

[0013] Furthermore, both the upper hook and the door panel hook are made of 4mm thick stainless steel, and the upper hook is welded to the box body.

[0014] Furthermore, the railway universal four-corner lock is made of 304 stainless steel.

[0015] Compared with existing technologies, the subway car-end junction box inspection door structure of this utility model has the following advantages:

[0016] In the maintenance door structure for the subway car terminal junction box provided by this utility model, the box cover and box body are installed by hooks, and the bottom end of the box cover is connected to the bottom end of the box body by a railway universal four-corner lock. The box body is provided with an upper hook, and the box cover is welded with a door panel hook, which is used to hook onto the upper hook. Therefore, in the maintenance door structure for the subway car terminal junction box provided by this utility model, the hooks can be quickly installed and removed, and the cooperation between the hooks can prevent the box cover from swaying left and right. When there is vertical vibration, the protrusion of the door panel hook and the cooperation with the upper hook can effectively prevent the door panel from falling off. In other words, in the maintenance door structure for the subway car terminal junction box provided by this utility model, the hooks can be quickly installed and removed, and the four-corner lock can quickly lock and open. Compared with the bolt fastening method in the prior art, the operation time required is greatly reduced, which is beneficial to daily maintenance operations. Attached Figure Description

[0017] Figure 1 A schematic diagram of the maintenance door structure of the subway car-end junction box provided in this embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the structure of the cover of the subway car-end junction box inspection door provided in this embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the upper hook of the box body in the maintenance door structure of the subway car terminal junction box provided in this embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the inner structure of the cover of the subway car terminal junction box inspection door structure provided in this embodiment of the utility model.

[0021] Figure label:

[0022] 1-Box body; 2-Hook; 21-Upper hook; 211-U-shaped groove; 22-Door panel hook; 221-Through hole; 222-Protrusion; 3-Box lid; 4-Railway universal four-corner lock; 5-Sealing ring. Detailed Implementation

[0023] For ease of understanding, the structure of the subway car-end junction box inspection door provided in this embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] This utility model embodiment provides a maintenance door structure for a subway car-end junction box, such as... Figures 1-4As shown, it includes: a box body 1, and a box cover 3 that is hung on the box body 1 via a hook 2, and the bottom end of the box cover 3 is connected to the bottom end of the box body 1 via a railway universal four-corner lock 4.

[0025] The box body 1 is equipped with an upper hook 21, and the box cover 3 is welded with a door panel hook 22, which is used to hook onto the upper hook 21.

[0026] Compared with the prior art, the subway car-end junction box inspection door structure described in this embodiment of the invention has the following advantages:

[0027] In the maintenance door structure of the subway car terminal junction box provided in this embodiment of the utility model, the box cover 3 and the box body 1 are hung together by hooks 2, and the bottom end of the box cover 3 is connected to the bottom end of the box body 1 by a railway universal four-corner lock 4. The box body 1 is provided with an upper hook 21, and the box cover 3 is welded with a door panel hook 22, which is used to hook onto the upper hook 21. Therefore, in the maintenance door structure of the subway car terminal junction box provided in this embodiment of the utility model, the hooks 2 can be quickly installed and removed, and the cooperation between the hooks 2 can prevent the box cover 3 from swaying left and right. When there is vertical vibration, the door panel hook 22 protrudes and cooperates with the upper hook 21 to effectively prevent it from falling off. In other words, in the maintenance door structure of the subway car terminal junction box provided in this embodiment of the utility model, the hooks 2 can be quickly installed and removed, and the four-corner lock 4 can be quickly locked and opened. Compared with the bolt fastening method in the prior art, the operation time required is greatly reduced, which is beneficial to daily maintenance operations.

[0028] In practical applications, such as Figures 1-4 As shown, the upper hook 21 can have a U-shaped groove 211, and the door panel hook 22 can have a through hole 221, and the through hole 221 can have a protrusion 222; the through hole 221 can be used to fit into the U-shaped groove 211, and the protrusion 222 can be engaged with the U-shaped groove 211, so that the hook 2 can effectively reduce the daily inspection, disassembly and installation time, and can be operated by a single person.

[0029] Among them, such as Figures 1-4 As shown, a waterproof adhesive groove can be provided around the inner perimeter of the aforementioned box cover 3, and a sealing ring 5 can be provided inside the waterproof adhesive groove.

[0030] Specifically, such as Figures 1-4 As shown, the sealing ring 5 can be a 15mm thick sealing strip, which is pasted into the waterproof adhesive groove.

[0031] Furthermore, such as Figures 1-4 As shown, the compression of the sealing strip can reach 30%, thereby effectively improving the waterproofing effect.

[0032] In the subway car terminal junction box maintenance door structure provided in this utility model embodiment, the box cover 3 adopts a hoisting structure. By bending the box body 1, the area of ​​the compression sealing strip is increased, so that the bending can prevent rainwater from accumulating and thus effectively prevent it from seeping into the box.

[0033] Furthermore, such as Figures 1-4 As shown, both the box body 1 and the box cover 3 can be made of stainless steel.

[0034] Furthermore, such as Figures 1-4 As shown, the upper hook 21 and the door panel hook 22 can both be made of 4mm thick stainless steel, and the upper hook 21 can be welded to the box body 1, thus having high strength.

[0035] Furthermore, such as Figures 1-4 As shown, the above-mentioned railway universal four-corner lock 4 can be made of 304 stainless steel, and the unlocking tool is a universal unlocking tool, thus it has strong versatility, is easy to operate, and its tightness is easy to identify.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A structure for a maintenance door of a subway car-end junction box, characterized in that, include: The box body, and the box cover which is hung on the box body via a hook, wherein the bottom end of the box cover is connected to the bottom end of the box body via a railway universal four-corner lock; The box body is provided with an upper hook, and the box cover is welded with a door panel hook, which is used to hook onto the upper hook.

2. The inspection door structure for the subway car end junction box according to claim 1, characterized in that, The upper hook has a U-shaped groove, the door panel hook has a through hole, and the through hole has a protrusion; the through hole is used to fit into the U-shaped groove, and the protrusion engages with the U-shaped groove.

3. The inspection door structure for the subway car end junction box according to claim 1 or 2, characterized in that, The inner perimeter of the box lid is provided with a waterproof adhesive groove, and a sealing ring is provided inside the waterproof adhesive groove.

4. The inspection door structure for the subway car end junction box according to claim 3, characterized in that, The sealing ring is a 15mm thick sealing strip, which is pasted into the waterproof groove.

5. The inspection door structure for the subway car end junction box according to claim 4, characterized in that, The compression of the sealing strip is 30%.

6. The inspection door structure for the subway car end junction box according to claim 1, characterized in that, Both the box body and the box lid are made of stainless steel.

7. The inspection door structure for the subway car end junction box according to claim 1, characterized in that, Both the upper hook and the door panel hook are made of 4mm thick stainless steel, and the upper hook is welded to the box body.

8. The inspection door structure for the subway car end junction box according to claim 1, characterized in that, The railway universal four-corner lock is made of 304 stainless steel.

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