Cable joint protection structure for railway power supply

Abstract

The utility model provides a cable joint protection structure for railway power supply, which relates to the technical field of cable protection and comprises an upper protection shell, a lower protection shell arranged at the bottom of the upper protection shell, insulating layers connected to the inner walls of the upper protection shell and the lower protection shell, and a fixing assembly arranged between the upper protection shell and the lower protection shell. The fixing assembly is used for fixedly installing the upper protective shell and the lower protective shell and comprises a transverse plate, a through hole, a threaded rod and a nut, and waterproof assemblies are arranged on the two sides of the outer ends of the upper protective shell and the lower protective shell and used for preventing rainwater from entering the upper protective shell and the lower protective shell. According to the cable joint protection structure for railway power supply, a joint at a cable connection position can be protected through the upper protection shell and the lower protection shell, the upper protection shell and the lower protection shell are conveniently fixed through the fixing assembly, and water such as rainwater can be prevented from permeating into the upper protection shell and the lower protection shell through the waterproof assembly; and the use of the cable is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection, in particular to a cable joint protection structure for railway power supply. Background Technique

[0002] Railway cables are a type of cable designed specifically for railway signal transmission and control systems. They play a crucial role in ensuring the safety and efficiency of railway operations. When two railway cables are connected, they are generally joined using a joint, and insulating tape is wound around the outside to protect the joint.

[0003] However, the protection effect of the insulating tape on the joint is poor, and moisture such as rainwater is easily infiltrated into the inside of the insulating tape. This not only corrodes the connector but also easily causes a short circuit in the cable, posing a significant safety hazard. In addition, the service life of the insulating tape is limited, and regular inspections and maintenance are required. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the background technique and provide a cable joint protection structure for railway power supply. The joint at the cable connection can be protected by an upper protective shell and a lower protective shell, and a waterproof component can prevent moisture such as rainwater from infiltrating into the inside of the upper protective shell and the lower protective shell.

[0005] To achieve the above object, the utility model provides the following technical solution. A cable joint protection structure for railway power supply includes: an upper protective shell, a lower protective shell is arranged at the bottom of the upper protective shell, insulating layers are connected to the inner walls of both the upper protective shell and the lower protective shell, a fixing component is arranged between the upper protective shell and the lower protective shell for fixedly installing the upper protective shell and the lower protective shell. The fixing component includes: a cross plate, a through hole, a threaded rod, and a nut. Waterproof components are arranged on both sides of the outer ends of the upper protective shell and the lower protective shell for preventing rainwater from entering the inside of the upper protective shell and the lower protective shell. The waterproof component includes: a fixing block a, a fixing block b, a clamping block, a lifting block, and a fitting block.

[0006] Optionally, cross plates are connected to both sides of the outer ends of the upper protective shell and the lower protective shell. Three through holes are opened at the tops of the four cross plates. Threaded rods are arranged inside the plurality of through holes. Nuts are threadedly connected to the outer sides of the threaded rods. Movable blocks are arranged on both sides of the outer end of the upper protective shell. Grooves are opened on the inner sides of the two movable blocks. Openings communicating with the grooves are opened at the tops and bottoms of the movable blocks. Slots are opened on one side of the bottom of the upper protective shell and one side of the top of the lower protective shell. Plug blocks are connected to the other side of the bottom of the upper protective shell and the other side of the top of the lower protective shell. The plug blocks are fitted with the slots. The fixing component composed of the cross plate, the through hole, the threaded rod, and the nut is used for fixedly installing the upper protective shell and the lower protective shell.

[0007] Optionally, fixing blocks a are arranged on both sides of the outer end of the upper protective shell, and fixing blocks b are arranged on both sides of the outer end of the lower protective shell. A clamping block is connected to one side of the inner wall of the fixing block b. A lifting block is arranged inside the fixing block a. Fitting blocks are connected to one side of the inner walls of the lifting block and the clamping block. Lifting grooves are formed at the tops of both fixing blocks a. The lifting block is slidably connected to the lifting groove. Horizontal blocks in a semi-circular ring structure are connected to both sides of the outer ends of the upper protective shell and the lower protective shell. Mounting blocks are connected to the inner walls of the four horizontal blocks. The outer ends of one side of the two fixing blocks a and the two fixing blocks b are respectively connected to the four mounting blocks. Convex blocks are connected to one side of the outer ends of two of the horizontal blocks. Openings are formed at the tops of the four convex blocks. Sliders slidably connected to the openings are connected to one side of the outer ends of the four lifting blocks. Pulling plates are connected to one ends of the four sliders. Two springs are arranged between the convex block and the lifting block. The waterproof assembly composed of the fixing block a, the fixing block b, the clamping block, the lifting block and the fitting block is used to prevent moisture such as rainwater from entering the upper protective shell and the lower protective shell.

[0008] The utility model provides a protection structure for a cable joint used in railway power supply, which has the following beneficial effects:

[0009] The advantages of the utility model are that the upper protective shell and the lower protective shell can protect the joint at the cable connection, and the fixing component facilitates the fixation of the upper protective shell and the lower protective shell. Moreover, the waterproof component can prevent moisture such as rainwater from seeping into the upper protective shell and the lower protective shell, corroding the joint and affecting the use of the cable. Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0011] Figure 2 It is a cross-sectional view of the overall structure of the utility model.

[0012] Figure 3 It is a schematic diagram of the structure of the lower protective shell of the utility model.

[0013] Figure 4 It is a schematic diagram of the structure of the horizontal block of the utility model.

[0014] Figure 5 It is a schematic diagram of the structure of the lifting block of the utility model.

[0015] Figure 6 It is a schematic diagram of the structure of the movable block of the utility model.

[0016] Figure 7 It is a schematic diagram of the structure of the horizontal plate of the utility model.

[0017] Figure 8 It is of the utility modelFigure 2 Enlarged view at position A in

[0018] Figures 1-8 In it: 1 - upper protective shell; 101 - lower protective shell; 102 - insulating layer; 2 - cross plate; 201 - through hole; 202 - threaded rod; 203 - nut; 3 - movable block; 301 - groove; 302 - opening; 4 - slot; 401 - insertion block; 5 - fixing block a; 501 - fixing block b; 502 - clamping block; 503 - lifting block; 504 - fitting block; 6 - lifting groove; 601 - cross block; 602 - mounting block; 7 - convex block; 701 - opening; 702 - slider; 703 - pulling plate; 704 - spring. Detailed implementation manner

[0019] The present application will be described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0020] Embodiment:

[0021] Please refer to Figures 1-8 In, a cable joint protection structure for railway power supply provided in this embodiment includes: an upper protective shell 1, a lower protective shell 101 is arranged at the bottom of the upper protective shell 1, insulating layers 102 are connected to the inner walls of the upper protective shell 1 and the lower protective shell 101, and a fixing component is arranged between the upper protective shell 1 and the lower protective shell 101 for fixedly installing the upper protective shell 1 and the lower protective shell 101. The fixing component includes: a cross plate 2, a through hole 201, a threaded rod 202 and a nut 203. Waterproof components are arranged on both sides of the outer ends of the upper protective shell 1 and the lower protective shell 101 for preventing rainwater from entering the inside of the upper protective shell 1 and the lower protective shell 101. The waterproof components include: a fixing block a 5, a fixing block b 501, a clamping block 502, a lifting block 503 and a fitting block 504.

[0022] Among them, horizontal plates 2 are connected to both sides of the outer ends of the upper protective shell 1 and the lower protective shell 101. Three through holes 201 are provided at the tops of the four horizontal plates 2. Threaded rods 202 are arranged inside the multiple through holes 201. Nuts 203 are threadedly connected to the outer sides of the threaded rods 202. After two railway cables are spliced through a connector, the lower protective shell 101 can be placed at the bottom of the splicing position of the two cables, and then the upper protective shell 1 is placed on the top of the splicing of the two cables. Then, the upper protective shell 1 is fitted with the lower protective shell 101, and the horizontal plates 2 on both sides of the upper protective shell 1 are fitted with the horizontal plates 2 on both sides of the lower protective shell 101. Then, after placing the movable blocks 3 on the outer sides of the two horizontal plates 2 on the same side, the movable blocks 3 are clamped on the two horizontal plates 2 through the internal grooves 301, and the six through holes 302 are respectively aligned with the six through holes 201. Then, the threaded rods 202 are passed through the through holes 302 and the through holes 201, and then the nuts 203 are threadedly rotated to the outer sides of the threaded rods 202. In this way, the two movable blocks 3 are respectively installed on the outer sides of the two horizontal plates 2 on both sides, so as to fix the two horizontal plates 2 on the same side and fix the upper protective shell 1 and the lower protective shell 101. The two railway cable splicing positions can be protected by the upper protective shell 1 and the lower protective shell 101, and the insulating layer 102 is used for protecting the cable from electric leakage.

[0023] Among them, movable blocks 3 are arranged on both sides of the outer end of the upper protective shell 1. Grooves 301 are provided on the inner sides of the two movable blocks 3. Through holes 302 that communicate with the grooves 301 are provided at the tops and bottoms of the movable blocks 3. By placing the two horizontal plates 2 inside the grooves 301, the two horizontal plates 2 can be limited by the movable blocks 3. One side of the inner wall of the groove 301 is connected with two positioning blocks, and positioning grooves are provided on one side of the outer ends of the four horizontal plates 2. When the movable blocks 3 slide to the outer sides of the two horizontal plates 2, the positioning blocks can be inserted into the positioning grooves, so as to facilitate the sliding of the movable blocks 3 to the outer sides of the horizontal plates 2.

[0024] Among them, slots 4 are provided on one side of the bottom of the upper protective shell 1 and on one side of the top of the lower protective shell 101. Plug blocks 401 are connected to the other side of the bottom of the upper protective shell 1 and the other side of the top of the lower protective shell 101. The plug blocks 401 are fitted with the slots 4. When the upper protective shell 1 and the lower protective shell 101 are fitted, the plug blocks 401 on one side of the bottom of the upper protective shell 1 and the plug blocks 401 on one side of the top of the lower protective shell 101 are respectively inserted into the slots 4 on one side of the top of the lower protective shell 101 and on one side of the bottom of the upper protective shell 1. The plug blocks 401 and the slots 4 facilitate the positioning and fitting of the upper protective shell 1 and the lower protective shell 101.

[0025] Among them, fixing blocks a5 are arranged on both sides of the outer end of the upper protective shell 1, fixing blocks b501 are arranged on both sides of the outer end of the lower protective shell 101, a clamping block 502 is connected to one side of the inner wall of the fixing block b501, a lifting block 503 is arranged inside the fixing block a5, and fitting blocks 504 are connected to one side of the inner walls of the lifting block 503 and the clamping block 502. When using the upper protective shell 1 and the lower protective shell 101 to protect the cable connection, the cables at both ends of the cable connection will be located between two fixing blocks a5 and fixing blocks b501 on the same side. The inner sides of the four fitting blocks 504 are respectively fitted with the cables, and the spring 704 provides elastic force to the fitting blocks 504, so that the fitting blocks 504 are closely fitted with the cables, thereby preventing rainwater from entering the upper protective shell 1 and the lower protective shell 101 from between the cable and the fitting blocks.

[0026] Among them, lifting grooves 6 are formed at the tops of the two fixing blocks a5, the lifting block 503 is slidably connected to the lifting grooves 6, horizontal blocks 601 in a semi-circular ring structure are connected to both sides of the outer ends of the upper protective shell 1 and the lower protective shell 101, mounting blocks 602 are connected to the inner walls of the four horizontal blocks 601, and one side of the outer ends of the two fixing blocks a5 and the two fixing blocks b501 are respectively connected to the four mounting blocks 602. When the two sections of cables are respectively placed inside the two fixing blocks b501, the lower half of the cables will be placed on the top of the lifting block 503 and be fitted with the fitting blocks 504. When the upper protective shell 1 is installed on the top of the lower protective shell 101, the upper half of the cables will be placed inside the fixing blocks a5 and be placed at the bottom of the lifting block 503 and be fitted with the cables through the fitting blocks 504. And the elastic force of the spring 704 can push the lifting block 503, so that the fitting blocks 504 inside the lifting block 503 and the fitting blocks 504 inside the clamping block 502 are closely fitted with the cables.

[0027] Among them, convex blocks 7 are connected to one side of the outer ends of the two horizontal blocks 601, openings 701 are formed at the tops of the four convex blocks 7, sliding blocks 702 slidably connected to the openings 701 are connected to one side of the outer ends of the four lifting blocks 503, pull plates 703 are connected to one ends of the four sliding blocks 702, and two springs 704 are arranged between the convex blocks 7 and the lifting blocks 503. After the upper protective shell 1 is fixedly installed on the top of the lower protective shell 101, the lifting block 503 can be driven to rise by the pull plate 703 and the sliding block 702 to compress the spring 704, and the bottom end of the lifting block 503 can be moved into the lifting groove 6. At this time, the positions of the upper protective shell 1 and the lower protective shell 101 on the outer side of the cable can be moved.

[0028] The specific usage method and function of this embodiment:

[0029] When two railway cables are joined by a connector, the lower protective shell 101 can be placed at the bottom of the joint of the two cables, and then the upper protective shell 1 can be placed at the top of the joint of the two cables. Then, the upper protective shell 1 is fitted with the lower protective shell 101, and the cross plates 2 on both sides of the upper protective shell 1 are fitted with the cross plates 2 on both sides of the lower protective shell 101. Then, the movable block 3 is moved to the outside of the two cross plates 2 on the same side through the groove 301, and the six openings 302 are respectively aligned with the six through holes 201. Then, the threaded rod 202 is passed through the opening 302 and the through hole 201, and the nut 203 is screwed onto the outside of the threaded rod 202. In this way, the two movable blocks 3 are respectively installed on the outside of the two cross plates 2 on both sides, so as to fix the two cross plates 2 on the same side and fix the upper protective shell 1 and the lower protective shell 101. The joint of the two railway cables can be protected by the upper protective shell 1 and the lower protective shell 101, and the insulating layer 102 is used for protecting the cable against electric leakage. One side of the outer ends of the two fixing blocks a5 and the two fixing blocks b501 are respectively connected to the four mounting blocks 602. When the two sections of the cable are respectively placed inside the two fixing blocks b501, the lower half of the cable will be placed on the top of the lifting block 503 and will be fitted with the fitting block 504. When the upper protective shell 1 is installed on the top of the lower protective shell 101, the upper half of the cable will be placed inside the fixing block a5 and will be placed at the bottom of the lifting block 503 and will be fitted with the cable through the fitting block 504. And the elastic force of the spring 704 can push the lifting block 503, so that the fitting blocks 504 on the inner side of the lifting block 503 and the fitting blocks 504 on the inner side of the clamping block 502 are closely fitted with the cable, thereby preventing rainwater from entering the inside of the upper protective shell 1 and the lower protective shell 101 from between the cable and the fitting block.

[0030] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0031] The above has introduced in detail a cable joint protection structure for railway power supply provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cable joint protection structure for railway power supply, characterized in that: include: An upper protective shell (1), wherein a lower protective shell (101) is arranged at the bottom of the upper protective shell (1), and inner walls of the upper protective shell (1) and the lower protective shell (101) are both connected with an insulating layer (102); A fixing assembly is provided between the upper protective shell (1) and the lower protective shell (101), the fixing assembly comprising: a transverse plate (2), a through hole (201), a threaded rod (202) and a nut (203); Waterproof components are provided on both sides of the outer ends of the upper protective shell (1) and the lower protective shell (101), and the waterproof components include: a fixing block a (5), a fixing block b (501), a clamping block (502), a lifting block (503) and a fitting block (504).

2. The cable joint protection structure for railway power supply according to claim 1 is characterized in that: Both sides of the outer ends of the upper protective shell (1) and the lower protective shell (101) are connected to transverse plates (2), the tops of the four transverse plates (2) are each provided with three through holes (201), a plurality of the through holes (201) are each provided with a threaded rod (202), and the outer sides of the threaded rods (202) are threadedly connected to nuts (203).

3. The cable joint protection structure for railway power supply according to claim 2 is characterized in that: Movable blocks (3) are provided on both sides of the outer end of the upper protective shell (1), grooves (301) are provided on the inner sides of the two movable blocks (3), and openings (302) in communication with the grooves (301) are provided on the top and bottom of the movable blocks (3).

4. The cable joint protection structure for railway power supply according to claim 1, characterized in that: A slot (4) is provided on one side of the bottom of the upper protective shell (1) and one side of the top of the lower protective shell (101), and an insert block (401) is connected to the other side of the bottom of the upper protective shell (1) and the other side of the top of the lower protective shell (101), and the insert block (401) fits in the slot (4).

5. The cable joint protection structure for railway power supply according to claim 1, characterized in that: The upper protective shell (1) is provided with fixing blocks a (5) on both sides of the outer end, the lower protective shell (101) is provided with fixing blocks b (501) on both sides of the outer end, one side of the inner wall of the fixing block b (501) is connected to a clamping block (502), a lifting block (503) is provided inside the fixing block a (5), and one side of the inner wall of the lifting block (503) and the clamping block (502) is connected to a fitting block (504).

6. The railway power supply cable joint protection structure according to claim 5, characterized in that: The tops of the two fixed blocks a (5) are each provided with a lifting groove (6), the lifting block (503) is slidably connected to the lifting groove (6), both sides of the outer ends of the upper protective shell (1) and the lower protective shell (101) are connected to transverse blocks (601) in a semicircular ring structure, the inner walls of the four transverse blocks (601) are each connected to a mounting block (602), and one side of the outer ends of the two fixed blocks a (5) and the two fixed blocks b (501) are respectively connected to the four mounting blocks (602).

7. The cable joint protection structure for railway power supply according to claim 6, characterized in that: One side of the outer ends of two of the horizontal blocks (601) is connected to a protrusion (7), the tops of the four protrusions (7) are provided with an opening (701), one side of the outer ends of the four lifting blocks (503) is connected to a slider (702) slidably connected to the opening (701), one end of the four sliders (702) is connected to a pull plate (703), and two springs (704) are provided between the protrusion (7) and the lifting block (503).

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