Subway under-vehicle junction box with novel waterproof cover plate

Abstract

The utility model discloses a novel subway under-train junction box with a waterproof cover plate, which belongs to the technical field of rail train electrical engineering and comprises a box body and a box cover, and a mounting seat and a flange are arranged on one side, facing the box cover, of the box body. A rubber strip groove, a bolt hole and a strip-shaped hole are formed in one side, facing the box body, of the box cover; the mounting seats are arranged corresponding to the bolt holes and are used for connecting bolts; the flange corresponds to the rubber strip groove, and the flange penetrates into the rubber strip groove and is used for pressing the rubber strip; and the plurality of strip-shaped holes are distributed on the periphery of the adhesive tape groove. By changing the structure of the cover plate of the box body, the rubber strip can be effectively protected from deformation and cracking, and the sealing performance is improved; the long round holes are added to drain water, so that water cannot flow into the box body to damage component wires in the box body, and the waterproofness of the box body is improved; the box body is made of a stainless steel material, is high in rigidity and applicability, is not easy to deform, and is suitable for special parts under a vehicle.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail train electrical engineering, in particular to a subway car undercarriage junction box with a novel waterproof cover. Background Art

[0002] At present, with the development of society and the progress of the times, the subway has become an important part of transportation in many cities. It has the advantages of fast speed, safety and comfort, high punctuality, all-weather operation, low freight, energy saving and environmental protection, and has become an indispensable means of transportation for the general public.

[0003] Numerous cables and signal lines must pass through the underside of subway vehicles to ensure their normal operation. The subway undercarriage junction box, a container located at the base of the subway system, houses electrical equipment. Its primary function is to route and protect cables and signal lines. Fireproof, cold-resistant, and safe, it effectively distributes cables and signal lines to the required locations on the vehicle. Due to its location beneath the vehicle, the harsh environment beneath the subway during operation requires the box to ensure the safe and normal operation of the cables and signal lines within it, ensuring it is dustproof, waterproof, and resistant to contamination. It must be highly waterproof, well-sealed, and not compromise driving safety.

[0004] However, the existing undercarriage junction box has poor waterproof performance between the box body and the box cover. The periphery of the box cover is folded to form a folded edge, and a continuous groove is set on the top of the box body. A continuous sealing strip is placed inside the groove. The strip cannot fully protect the entire box body and a part of it is exposed. As time goes by and the temperature changes, the molecular spacing of the sealing strip will increase or decrease accordingly, causing gaps in the strip, causing water to enter the box body through the gaps in the exposed strip, losing the waterproof function of the box body, resulting in weakened sealing of the box body, posing a safety hazard to the train; the material selection of the existing undercarriage box body is unreasonable, and the existing vehicle material is mostly aluminum, which has weak rigidity and is more prone to deformation, thereby causing water leakage; the welding area at the position of the existing box body fastening nut is small, and the firmness of the nut cannot be ensured, which easily causes the nut to fall off, and then causes the cover plate to fall off.

[0005] Therefore, a new technical solution is urgently needed in the existing technology to solve this problem. Utility Model Content

[0006] In order to overcome the deficiencies in the prior art, the utility model provides a subway undercarriage junction box with a novel waterproof cover, which is used to solve the problems of weak box sealing, easy deformation and easy falling off of the cover.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a new type of subway undercar junction box with a waterproof cover, comprising a box body and a box cover, wherein the box body is provided with a mounting seat and a flange on the side facing the box cover; the box cover is provided with a rubber strip groove, a bolt hole and a strip hole on the side facing the box body; the mounting seat is provided corresponding to the bolt hole, and the mounting seat is used to connect the bolt; the flange is provided corresponding to the rubber strip groove, and the flange penetrates into the rubber strip groove for pressing the rubber strip; the strip holes are plural and distributed on the periphery of the rubber strip groove.

[0008] Preferably, the flange is a dead edge structure that is bent inward 90 degrees and then bent downward 90 degrees along the lower end of the side wall of the box.

[0009] Preferably, the mounting seat is welded to the side of the box body facing the box cover.

[0010] Preferably, both the box body and the box cover are provided with pipe joint interfaces.

[0011] Preferably, the box is a stainless steel box.

[0012] Through the above design scheme, the utility model can bring the following beneficial effects:

[0013] 1. Change the structure of the box cover. A flange is provided on the side of the box body facing the box cover, and a rubber strip groove is provided on the side of the box cover facing the box body. The flange is provided corresponding to the rubber strip groove. The flange goes deep into the rubber strip groove to press the rubber strip, which can effectively protect the rubber strip from deformation and cracking, and improve the sealing performance.

[0014] 2. Add oblong holes for drainage to ensure that water cannot flow into the box and damage the components and wires inside the box, thereby increasing the waterproofness of the box;

[0015] 3. The box body and the cover are fastened with a welding mount. The welding mount not only increases the firmness between the cover and the box body and prevents the cover from falling off, but also ensures the overall safety, sealing and fastening of the junction box.

[0016] 4. The box body is made of stainless steel, which has strong rigidity, strong applicability, is not easy to deform, and is suitable for special parts under the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a three-dimensional schematic diagram of a subway car undercarriage junction box with a new waterproof cover.

[0018] Figure 2 The utility model is a three-dimensional schematic diagram of a subway undercarriage junction box with a new waterproof cover.

[0019] Figure 3 This is a bottom view of the box body of a subway car undercarriage junction box with a new waterproof cover plate according to the utility model.

[0020] Figure 4 This is a side view of a subway car undercarriage junction box with a new waterproof cover according to the present invention.

[0021] Figure 5 This is a top view of the box cover of a subway car undercarriage junction box with a new waterproof cover plate according to the utility model.

[0022] Figure 6 This is a side perspective view of a subway car undercarriage junction box with a new waterproof cover according to the present invention.

[0023] Figure 7 This is a partially enlarged side perspective view of a subway car undercarriage junction box with a new waterproof cover according to the present invention.

[0024] In the figure, 1-box body, 101-mounting base, 102-flange, 103-pipe joint interface, 2-box cover, 201-strip groove, 202-bolt hole, 203-strip hole, 3-bolt. DETAILED DESCRIPTION

[0025] The following is a detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings.

[0026] It should be noted that the terms "front and back, up and down, left and right" mentioned in the text are merely simplified expressions for intuitively describing positional relationships based on the accompanying drawings, and are not limitations on the technical solution.

[0027] To more clearly illustrate the present invention, the present invention is further described below with reference to preferred embodiments. Those skilled in the art will appreciate that the detailed description below is illustrative and non-restrictive, and that the user may make various changes to the following parameters without departing from the mechanism and scope of the invention as set forth in the claims. To avoid obscuring the essence of the present invention, well-known methods and processes are not described in detail.

[0028] By the attached Figures 1 to 7 As shown: A new type of subway undercar junction box with a waterproof cover, including a box body 1 and a box cover 2, the box body 1 is provided with a mounting seat 101 and a flange 102 on the side facing the box cover 2; the box cover 2 is provided with a rubber strip groove 201, a bolt hole 202 and a strip hole 203 on the side facing the box body 1; the mounting seat 101 is arranged corresponding to the bolt hole 202, and the mounting seat 101 is used to connect the bolt 3; the flange 102 is arranged corresponding to the rubber strip groove 201, and the flange 102 penetrates into the rubber strip groove 201 for pressing the rubber strip; the strip holes 203 are plural and distributed on the periphery of the rubber strip groove 201.

[0029] Furthermore, the flange 102 is a dead-edge structure that bends inward 90 degrees and then downward 90 degrees along the lower end of the side wall of the box body 1. This process produces an integrated molding process, which is compact and cost-effective. Of course, a separate flange can also be welded to the side of the box body 1 facing the box cover 2.

[0030] Furthermore, the mounting base 101 is welded to the side of the box body 1 facing the box cover 2. The welding area is increased, thereby increasing the firmness of the box cover 2.

[0031] Furthermore, the box body 1 and the box cover 2 are both provided with pipe joint interfaces 103 for passing a large number of cables and signal lines.

[0032] Furthermore, the box body 1 is a stainless steel box body, which has high density, high hardness, corrosion resistance and heat resistance.

[0033] In the specific implementation, the upper edge of the box body 1 is welded to the bottom of the subway car body. The box body 1 is in the shape of a square structure. The body plate below the box body 1 is welded with a mounting seat 101. There are pipe joint interfaces 103 on the left and right sides. A high-voltage warning sign is provided on the side wall. The lower end of the side wall of the box body 1 is bent inward 90 degrees and then bent downward 90 degrees to form a dead edge structure to form a flange 102. The height of the flange 102 is based on the deep-seated rubber strip groove 201 to press the rubber strip. The box cover 2 is in the shape of a square structure, and its edge is flush with the box body 1. A circular hole is provided on the cover 2 as a pipe joint interface 103; a circle of rubber strip grooves 201 are provided on the side of the box cover 2 facing the box body 1, and the position of the rubber strip grooves 201 corresponds to the flange 102. The sealing strip is pasted in the rubber strip grooves 201 to seal and fix the rubber strip grooves; a plurality of strip holes 203 are opened on the outer periphery of the rubber strip grooves 201 so that water can be discharged in time when it enters the extension of the box body 1 and the box cover 2; finally, bolts 3 are used to connect the box cover 2 to the mounting base 101 through the bolt holes 202 to tightly fix the box body 1 and the box cover 2.

[0034] Obviously, the embodiments described above are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

Claims

1. A new type of subway car undercarriage junction box with a waterproof cover, comprising a box body (1) and a box cover (2), characterized in that: The box body (1) is provided with a mounting seat (101) and a flange (102) on the side facing the box cover (2); the box cover (2) is provided with a rubber strip groove (201), a bolt hole (202) and a strip hole (203) on the side facing the box body (1); the mounting seat (101) and the bolt hole (202) are provided correspondingly, and the mounting seat (101) is used to connect the bolt (3); the flange (102) and the rubber strip groove (201) are provided correspondingly, and the flange (102) penetrates into the rubber strip groove (201) to press the rubber strip; the strip holes (203) are plural, and the strip holes (203) are distributed on the periphery of the rubber strip groove (201).

2. The subway car undercarriage junction box with a new waterproof cover according to claim 1 is characterized by: The flange (102) is a dead edge structure that is bent inward 90 degrees and then bent downward 90 degrees along the lower end of the side wall of the box body (1).

3. The subway car undercarriage junction box with a new waterproof cover according to claim 1 is characterized by: The mounting seat (101) is welded to the side of the box body (1) facing the box cover (2).

4. The subway car undercarriage junction box with a new waterproof cover according to claim 1 is characterized by: The box body (1) and the box cover (2) are both provided with pipe joint interfaces (103).

5. The subway car undercarriage junction box with a new waterproof cover according to claim 1 is characterized by: The box body (1) is a stainless steel box body.

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