Ground line protection device

Abstract

The utility model discloses a ground line protection device, which comprises a sealing box and a sealing sleeve, the sealing box is internally provided with an accommodating space for accommodating a lead joint, and the sealing box is provided with two threading holes for a lead to pass through; one sealing sleeve is arranged in each threading hole in a matched mode, and an elastic sealing bag capable of being inflated or deflated is formed in the inner side of each sealing sleeve in the circumferential direction of the sealing sleeve; compared with the prior art, the two wires respectively penetrate into the accommodating space in the sealing box from the sealing sleeves matched in the two threading holes, and then the two wires are connected; and then each elastic sealing bag is filled with the expansion filler, and the elastic sealing bags expand to be tightly attached to the guide outer wall, so that the wire joint is placed in a relatively sealed accommodating space, water vapor is prevented from entering the sealing box, and relatively excellent protection capability is provided for the guide joint.

Description

A ground line protection device Technical Field

[0001] This utility model relates to the field of line protection structure technology, specifically to a ground line protection device. Background Technology

[0002] Urban rail transit is a public transportation system that relies on track structures for vehicle load-bearing and guidance. Based on urban transportation planning needs, this system transports large volumes of passengers using trains or single-vehicles by setting up fully or partially enclosed dedicated track lines.

[0003] At rail transit construction sites, line connections are a crucial step in ensuring the normal operation of equipment. Currently, insulating tape is commonly used to protect wire joints, but the unique humid environment of underground spaces makes this single protective method have significant drawbacks: insulating tape is not effective at blocking moisture, leading to leakage at the joints and posing safety hazards to construction workers. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a ground line protection device to solve the problem that the protection capability of the guide joint is relatively poor in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a ground line protection device, comprising:

[0006] A sealed box, wherein the sealed box has a receiving space for accommodating wire connectors and has two through holes for wires to pass through.

[0007] A sealing sleeve is provided in each thread hole, and each sealing sleeve has an elastic sealing bladder formed on its inner side along its circumferential direction, which expands by filling with an expansion filler.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] When using the local ground line protection device, the two conductors are passed through the sealing sleeves that fit in the two through holes into the receiving space inside the sealing box, and then the two conductors are connected. Then, expansion filler is filled into each elastic sealing bladder, and the elastic sealing bladder expands to fit tightly against the outer wall of the guide, thereby placing the conductor joint in a relatively sealed receiving space, preventing moisture from entering the sealing box, and providing relatively superior protection for the guide joint. Attached Figure Description

[0010] Figure 1 is a structural schematic diagram of an embodiment of the present invention;

[0011] Figure 2 is a partial enlarged view of part A in Figure 1;

[0012] Figure 3 is a view of Figure 1 along the direction the lid faces;

[0013] Figure 4 is a cross-sectional view along line BB in Figure 3;

[0014] Figure 5 is a partial structural schematic diagram of Figure 1;

[0015] Figure 6 is a partial structural schematic diagram of Figure 1.

[0016] The reference numerals in the accompanying drawings include: sealing box 1, box body 11, box cover 12, sealing ring 13, sealing sleeve 2, sleeve body 21, limiting ring 22, elastic sealing bladder 3, sealing cap 4, mounting platform 5, positioning groove 6, sponge cover 7, perforation 8, limiting component 9, limiting block 91, through hole 92, locking part 93. Detailed Implementation

[0017] The present invention will be further described in detail below through specific embodiments:

[0018] As shown in Figures 1, 3 and 4, this utility model embodiment proposes a ground line protection device, including a sealing box 1 and a sealing sleeve 2. The sealing box 1 has a receiving space for accommodating wire connectors and has two through holes for wires to pass through. The sealing sleeve 2 is provided in each through hole and each sealing sleeve 2 has an elastic sealing bladder 3 formed on its inner side along its circumferential direction, which can be inflated or deflated.

[0019] When the local ground line protection device is in use, the two conductors are passed through the sealing sleeves 2 that fit in the two through holes and into the receiving space inside the sealing box 1, and then the two conductors are connected; then, expansion filler is filled into each elastic sealing bladder 3, and the elastic sealing bladder 3 expands to fit tightly against the outer wall of the guide, thereby placing the conductor joint in a relatively sealed receiving space, preventing moisture from entering the sealing box 1, and providing relatively superior protection for the guide joint.

[0020] In this embodiment, the elastic sealing bladder 3 can be made of thermoplastic polyurethane, which is highly flexible, durable, and has strong toughness and wear resistance. When an expansion filler is filled into the elastic sealing bladder 3, the elastic sealing bladder 3 expands, and the expanded elastic sealing bladder 3 fits tightly against the outer wall of the wire to improve the sealing performance at the wire hole and prevent moisture from entering the sealing box 1 through the wire hole; at the same time, the expanded elastic sealing bladder 3 also provides a certain clamping effect on the wire to improve the stability of the wire joint within the sealing box 1.

[0021] When removal is required, the expansion filler is discharged from the elastic sealing bladder 3, and the elastic sealing bladder 3 contracts to detach from the outer wall of the wire. At this time, the guide connector is disconnected from the sealing box 1, and then the wire can be easily removed from the sealing sleeve 2.

[0022] The expansion filler mentioned above can be a gas (such as air) or a liquid (such as water), preferably a liquid, which can keep the elastic sealing bladder 3 in an expanded state for a long time to fit tightly against the outer wall of the wire.

[0023] To facilitate the filling of the elastic sealing bladder 3 with expansion filler or the discharge of expansion filler from the elastic sealing bladder 3; as shown in Figures 1, 2 and 3, according to another embodiment of the present invention, the ground line protection device wherein the elastic sealing bladder 3 is connected to an air nozzle, and the air nozzle is detachably connected to a sealing cap 4.

[0024] In this embodiment, the sealing cap 4 is connected to the air nozzle by a threaded connection. After removing the sealing cap 4 from the air nozzle, the expansion filler can be filled into the elastic sealing bladder 3 to cause the elastic sealing bladder 3 to expand. After completion, the sealing cap 4 is connected to the air nozzle to ensure that the elastic sealing bladder 3 remains in an expanded state.

[0025] Remove the sealing cap 4 from the air nozzle, and then the expansion filler can be discharged from the air nozzle.

[0026] In order to ensure that the sealing sleeve 2 is stably assembled in the corresponding wire hole, as shown in Figures 1, 3, 4 and 5, according to another embodiment of the present invention, the ground line protection device includes a sleeve body 21 and a limiting ring 22. The sleeve body 21 is adapted to the corresponding wire hole; the limiting ring 22 is connected to both ends of the sleeve body 21 and is used to abut against the inner wall or outer wall of the sealing box 1.

[0027] In this embodiment, the threading hole is a circular hole, so the sleeve body 21 is designed as a cylinder. The sleeve body 21 fits tightly inside the corresponding threading hole, and the two limiting sleeves abut against the inner and outer walls of the sealing box 1, so that the sealing sleeve 2 is stably assembled on the corresponding threading hole.

[0028] The sealing sleeve 2 can be made of elastic polymer materials such as rubber, and has a certain structural strength and elastic deformation, which makes it easy to stably assemble the sealing sleeve 2 onto the corresponding wire hole.

[0029] To further improve the protection performance of the wire connector, as shown in Figures 4 and 5, according to another embodiment of the present invention, the ground line protection device includes an installation platform 5 in the accommodating space, and a positioning groove 6 on the installation platform 5; the accommodating space also includes a sponge cover 7 for accommodating the wire connector and having one open end, and two through holes 8 for the wire to pass through, with the open end of the sponge cover 7 embedded in the positioning groove 6.

[0030] When connecting the wires: the two wires are respectively inserted into the sponge cover 7 through the two through holes 8, and then the two wires are connected from the open end of the sponge cover 7 to form a wire connector placed inside the sponge cover 7. Then the open end of the sponge cover 7 is embedded in the positioning groove 6 for assembly. The sponge cover 7 can absorb moisture and further protect the wire connector to improve the protection capability of the wire connector.

[0031] In this embodiment, the sponge cover 7 is cylindrical.

[0032] To improve the stability of the wire connector within the sponge cover 7 and prevent the wire from being pulled off, as shown in Figures 4 and 5, according to another embodiment of the present invention, the ground line protection device is provided with two limiting components 9 on the mounting platform 5 for limiting the wire, and the positioning groove 6 is located between the two limiting components 9.

[0033] Based on the above scheme, each of the limiting components 9 includes a limiting block 91 and a locking part 93. The limiting block 91 is fixedly connected to the mounting platform 5 and has a through hole 92 for the wire to pass through. The locking part 93 is connected to the limiting block 91 and is used to abut against the wire passing through the through hole 92 to limit its movement.

[0034] In this embodiment, the locking part 93 is specifically a locking bolt. One end of the locking bolt passes through the top of the limiting block 91 and then through the through hole 92 to cooperate with the wire. The locking bolt is threadedly connected to the limiting block 91 to lock.

[0035] Specifically, the two wires pass through the through holes 92 on the limiting blocks 91 in the two limiting components 9, and then through the two through holes 8 into the sponge cover 7, ensuring that the two wires have sufficient length in the sponge cover 7 so that the two wires can be stably connected together. Then, the two locking bolts are rotated until they abut against the corresponding wires to limit and fix the wires.

[0036] The locking bolt, at the end that abuts against the wire, can be fitted with an elastic rubber sleeve to prevent excessive pressure on the wire and damage to the wire.

[0037] To facilitate the connection of wires, as shown in Figures 1, 3, and 4, according to another embodiment of the present invention, the ground line protection device includes a sealing box 1 comprising a box body 11 and a box cover 12. The box body 11 has an accommodating space and wire holes are formed on the box body 11. One end of the box body 11 is open and a sealing ring 13 is arranged along its circumferential direction on the open end. The box cover 12 is detachably connected to the open end of the box body 11 for sealing and has a sealing groove adapted to the sealing ring 13.

[0038] In this embodiment, the box body 11 and the box cover 12 cooperate to form a carrier for protecting the wire connector. The sealing ring 13 on the box body 11 cooperates with the sealing groove on the box cover 12 to improve the sealing performance of the box body 11 and the box cover 12 after connection, and prevent moisture from entering the sealed box 1 from the connection between the box body 11 and the box cover 12.

[0039] Specifically, the box body 11 and the box cover 12 are locked and fixed together by multiple matching bolts and nuts.

[0040] The ground-based line protection device is used as follows:

[0041] First, open the lid 12;

[0042] Then the wires will pass through the sealing sleeves 2 that fit in the two wire holes, the through holes 92 on the two limit blocks 91 and the two through holes 8 in sequence to enter the sponge cover 7.

[0043] Next, the two wires are connected from the open end of the sponge cover 7 to form a wire connector, and then the open end of the sponge cover 7 is embedded in the positioning groove 6.

[0044] Then rotate the two locking bolts to lock and fix the two wires;

[0045] Next, expansion filler is filled into the two elastic sealing bladders 3 at the two air nozzles. The elastic sealing bladders 3 expand to fit tightly against the outer wall of the corresponding wire. Then, sealing caps 4 are connected to both air nozzles.

[0046] Finally, close the lid 12 to lock it.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A ground line protection device, characterized in that, include: A sealing box, wherein the sealing box has a receiving space for accommodating wire connectors and has two through holes for wires to pass through; a sealing sleeve, wherein a sealing sleeve is provided in each through hole and each sealing sleeve has an elastic sealing bladder formed on its inner side along its circumferential direction, which expands by filling with an expansion filler.

2. The ground line protection device according to claim 1, characterized in that, An air nozzle is connected to the elastic sealing bladder, and the air nozzle is detachably connected to a sealing cap.

3. A ground line protection device according to claim 1, characterized in that, The sealing sleeve includes: a sleeve body, which is adapted to the corresponding wire hole; and a limiting ring, which is connected to both ends of the sleeve body and is used to abut against the inner or outer wall of the sealing box.

4. A ground line protection device according to claim 1, characterized in that, The accommodating space is provided with an installation platform, and the installation platform has a positioning groove; the accommodating space is also provided with a sponge cover for accommodating wire connectors and having one end open, the sponge cover has two through holes for wires to pass through, and the open end of the sponge cover is embedded in the positioning groove.

5. A ground line protection device according to claim 4, characterized in that, The mounting platform is provided with two limiting components for limiting the wires, and the positioning groove is located between the two limiting components.

6. A ground line protection device according to claim 5, characterized in that, Each of the limiting components includes: a limiting block, which is fixedly connected to the mounting platform and has a through hole for a wire to pass through; and a locking part, which is connected to the limiting block and is used to abut against and limit the wire passing through the through hole.

7. A ground line protection device according to claim 1, characterized in that, The sealed box includes: a box body, in which the accommodating space is formed and the wire holes are all opened on the box body, one end of the box body is open and a sealing ring is arranged along its circumferential direction on the open end; and a box cover, which is detachably connected to the open end of the box body for sealing and has a sealing groove adapted to the sealing ring.

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