Cable intermediate joint four-prevention gel protection device

Abstract

The utility model discloses a cable intermediate joint four-prevention gel protection device, which belongs to the technical field of cables and comprises a protection shell, a spring is fixedly connected to the inner side wall of a fixing frame, an extrusion ring is fixedly connected to one end, far away from the fixing frame, of the spring, and a storage groove is formed in the inner side wall of the protection shell. The outer side wall of the protective shell is in threaded connection with a connecting frame, and the side, close to the protective shell, of the connecting frame is fixedly connected with an extrusion column. According to the four-prevention gel protection device for the cable intermediate joint, the connecting frame is spliced with the protection shell, so that an extrusion column enters from the interior of an extrusion hole, and the connecting frame extrudes an extrusion ring, so that gel stored in a storage groove enters the protection shell through an input hole, and the periphery of the cable intermediate joint is coated; gaps at cable joints can be filled, waterproof and fireproof protection can be performed on the cable joints through gel, and then electrical faults or corrosion hidden dangers caused by the fact that water permeates into the cable joints and other components are effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and more specifically, relates to a four-proof gel protection device for cable intermediate joints. Background Art

[0002] In power transmission and communication systems, cables, as important connection media, undertake the task of transmitting electrical energy or signals. Cable intermediate joints are indispensable components in cable connections and are used to achieve reliable connections between cables. It is necessary to waterproof, fireproof, and provide corrosion and weather resistance to the interface of the cables to ensure stable long-term durability after cable connection.

[0003] After cable joints are connected, they are usually wrapped with adhesive tape. When the adhesive tape is used for a long time, the viscosity of the adhesive tape will decrease. When the joint is exposed to water or a humid environment, water may seep into the adhesive tape and into components inside the cable joint, causing electrical faults or corrosion hazards, which can easily damage the cable and further affect the operation of the cable.

[0004] To solve the above problems, a four-proof gel protection device for cable intermediate joints is proposed in this application. Content of the Utility Model

[0005] In view of the problems in the related art, the utility model proposes a four-proof gel protection device for cable intermediate joints to overcome the above technical problems existing in the existing related art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A four-proof gel protection device for cable intermediate joints includes a protective housing. A fixing frame is fixedly connected to the outer side wall of the protective housing. A spring is fixedly connected to the inner side wall of the fixing frame. One end of the spring away from the fixing frame is fixedly connected to a pressing ring. A storage groove is formed in the inner side wall of the protective housing. A connecting frame is threadedly connected to the outer side wall of the protective housing. A pressing column is fixedly connected to the side of the connecting frame close to the protective housing. A pressing hole is formed in the side of the protective housing close to the connecting frame. An input hole is formed in the inner side wall of the protective housing.

[0008] Preferably, a limiting groove is formed in the side of the connecting frame close to the protective housing. The inner side wall of the limiting groove is adapted to the outer side wall of the fixing frame. A first thread groove is formed in the outer side wall of one end of the protective housing close to the connecting frame.

[0009] By providing the limiting groove and the first thread groove, it is realized that the inner side wall of the limiting groove is adapted to the outer side wall of the fixing frame, so that when the connecting frame approaches the protective housing, the fixing frame enters the inside of the limiting groove for limiting.

[0010] Preferably, a rotation groove is formed in the outer side wall of the connection frame. The connection frame is rotatably connected with a rotation ring through the rotation groove. A first threaded sleeve is fixedly connected to the outer side wall of the rotation ring, and the inner side wall of the first threaded sleeve is adapted to the first threaded groove.

[0011] By providing the rotation groove, the rotation ring and the first threaded sleeve, the first threaded sleeve can be rotated inside the rotation groove through the rotation ring.

[0012] Preferably, a second threaded groove is formed in the outer side wall of one end of the connection frame away from the protective housing. The connection frame is threadedly connected with a second threaded sleeve through the second threaded groove.

[0013] By providing the second threaded groove and the second threaded sleeve, the inner side wall of the second threaded sleeve is adapted to the second threaded groove, and the second threaded sleeve is threadedly connected with the connection frame through the second threaded groove.

[0014] Preferably, a fixed tooth is fixedly connected to one end of the connection frame close to the second threaded sleeve, and an extrusion frame is fixedly connected to one end of the second threaded sleeve away from the connection frame.

[0015] By providing the fixed tooth and the extrusion frame, the extrusion frame squeezes the fixed tooth, causing the end of the fixed tooth away from the connection frame to contract inward, thereby clamping and fixing the cable.

[0016] Preferably, a sealing cover is detachably connected to the center of the outer side wall of the protective housing.

[0017] By providing the sealing cover, the storage groove formed inside the protective housing can be filled with gel through the sealing cover.

[0018] In summary, the technical effects and advantages of the present utility model are as follows: for this four-proof gel protection device for cable intermediate joints, the connection frame is spliced with the protective housing, making the extrusion column enter from the inside of the extrusion hole, causing the connection frame to squeeze the extrusion ring, so that the gel stored inside the storage groove enters the inside of the protective housing through the input hole, thereby covering the periphery of the cable intermediate joint, filling the gaps at the cable interface, and providing waterproof and fireproof protection for the cable joint through the gel, effectively avoiding water from seeping into components such as the cable joint and causing electrical faults or corrosion hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a schematic diagram of the extrusion column and its related structures of the present utility model;

[0021] Figure 3 is a schematic diagram of the extrusion ring and its related structures of the present utility model;

[0022] Figure 4 This is a schematic diagram of the fixed teeth of the present utility model and its related structures.

[0023] In the figure: 1. Protection shell; 2. Fixed frame; 3. Spring; 4. Extrusion ring; 5. Storage groove; 6. Connection frame; 7. Extrusion column; 8. Extrusion hole; 9. Input hole; 10. Limit groove; 11. First thread groove; 12. Rotation groove; 13. Rotation ring; 14. First thread sleeve; 15. Second thread groove; 16. Fixed teeth; 17. Second thread sleeve; 18. Extrusion frame; 19. Sealing cover. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Referring to Figures 1-3 , a four-proof gel protection device for a cable intermediate joint, including a protection shell 1. A fixed frame 2 is fixedly connected to the outer side wall of the protection shell 1. A spring 3 is fixedly connected to the inner side wall of the fixed frame 2. One end of the spring 3 away from the fixed frame 2 is fixedly connected to an extrusion ring 4. By the spring 3 installed inside the fixed frame 2, the extrusion ring 4 is pulled to prevent the extrusion ring 4 from shaking inside the storage groove 5. A storage groove 5 is opened on the inner side wall of the protection shell 1. The outer side wall of the extrusion ring 4 is adapted to the inner side wall of the storage groove 5, so that the extrusion ring 4 can move inside the storage groove 5. The outer side wall of the protection shell 1 is threadedly connected to a connection frame 6. One side of the connection frame 6 close to the protection shell 1 is fixedly connected to an extrusion column 7. An extrusion hole 8 is opened on the side of the protection shell 1 close to the connection frame 6. An input hole 9 is opened on the inner side wall of the protection shell 1. By splicing the connection frame 6 with the protection shell 1, the connection frame 6 can drive the extrusion column 7 to enter the inside of the storage groove 5 through the extrusion hole 8, so that the extrusion column 7 extrudes the extrusion ring 4, causing the extrusion ring 4 to move inside the storage groove 5. Thus, the extrusion ring 4 extrudes the gel inside the storage groove 5, and the gel enters the inside of the storage groove 5 through the input hole 9, so that the gel can wrap the intermediate joint of the cable. The gel is a high-performance solvent-free waterproof and fireproof gel, which is specially designed for the waterproof, anti-corrosion, insulation and fire protection of the cable body and joint parts, as well as the metal and insulation parts of the power distribution equipment. The gel adopts a two-component room-temperature curing technology. The special formula design not only makes the coating solvent-free, ensuring the safety of construction and the health of personnel, but also further realizes the integration of waterproof and fireproof functions. The gel can expand rapidly when heated or exposed to fire, forming a heat-insulating layer, which can not only effectively protect the cable joint or other components, but also effectively prevent the spread of fire until the protection device cuts off the fault current, thereby avoiding damage to the cable.

[0026] Reference Figure 3 As shown in Figure 3 , a limiting groove 10 is provided on one side of the connecting frame 6 close to the protective housing 1. The inner side wall of the limiting groove 10 is adapted to the outer side wall of the fixed frame 2. On the outer side wall of one end of the protective housing 1 close to the connecting frame 6, a first threaded groove 11 is provided. By making the inner side wall of the limiting groove 10 adapted to the outer side wall of the fixed frame 2, when the connecting frame 6 and the protective housing 1 are spliced, the fixed frame 2 is inserted into the interior of the limiting groove 10, preventing the protective housing 1 and the connecting frame 6 from being unable to be spliced, and enabling the connecting frame 6 to effectively drive the extrusion column 7 to extrude the extrusion ring 4.

[0027] Reference Figures 3-4 As shown in Figures 3-4 , a rotating groove 12 is provided on the outer side wall of the connecting frame 6. The connecting frame 6 is rotatably connected with a rotating ring 13 through the rotating groove 12. A first threaded sleeve 14 is fixedly connected to the outer side wall of the rotating ring 13. The inner side wall of the first threaded sleeve 14 is adapted to the first threaded groove 11. By rotating the rotating ring 13 inside the rotating groove 12, the rotating ring 13 drives the first threaded sleeve 14 to rotate on the outer side wall of the connecting frame 6. The inner side wall of the first threaded sleeve 14 is adapted to the first threaded groove 11, enabling the first threaded sleeve 14 to drive the connecting frame 6 to be fixed to the protective housing 1 through the first threaded groove 11, preventing the connecting frame 6 from shaking.

[0028] Reference Figure 4 As shown in Figure 4 , a second threaded groove 15 is provided on the outer side wall of one end of the connecting frame 6 away from the protective housing 1. The connecting frame 6 is threadedly connected with a second threaded sleeve 17 through the second threaded groove 15. By making the second threaded groove 15 provided on the outer side wall of the connecting frame 6 adapted to the inner side wall of the second threaded sleeve 17, the second threaded sleeve 17 can be fixed to the connecting frame 6.

[0029] Reference Figure 4 As shown in Figure 4 , a fixed tooth 16 is fixedly connected to one end of the connecting frame 6 close to the second threaded sleeve 17. An extrusion frame 18 is fixedly connected to one end of the second threaded sleeve 17 away from the connecting frame 6. During the movement of the extrusion frame 18 installed on the outer side wall of the second threaded sleeve 17, the fixed tooth 16 is extruded by the extrusion frame 18, enabling the fixed tooth 16 to clamp and fix the cable. The cable is driven by the second threaded sleeve 17 to extend into the interior of the protective housing 1 for splicing, thereby enabling the cable to be spliced and enabling the protective housing 1 to protect the joint of the cable.

[0030] Reference Figures 1-2 As shown in Figures 1-2 , a sealing cover 19 is detachably connected to the center of the outer side wall of the protective housing 1. The sealing cover 19 can close the filling port provided on the outer side wall of the protective housing 1, and gel is poured into the interior of the protective housing 1 through the filling port, enabling the gel to be stored in the storage groove 5.

[0031] Working principle: By sleeving the connecting frame 6 and the second threaded sleeve 17 on the outer wall of the cable, the second threaded sleeve 17 drives the extrusion frame 18 to extrude the fixed teeth 16, so that the connecting frame 6 is fixed on the outer wall of the cable. The first threaded sleeve 14 rotatably connected to the outer wall of the connecting frame 6 is connected to the first threaded groove 11, so that the first threaded sleeve 14 drives the connecting frame 6 to be spliced with the protective housing 1. The fixed frame 2 is inserted into the limiting groove 10, and the extrusion column 7 is driven by the connecting frame 6 to be inserted into the extrusion hole 8, so that the extrusion column 7 extrudes the extrusion ring 4 inside the storage groove 5. Thus, the extrusion ring 4 extrudes the gel inside the storage groove 5, and the gel inside the storage groove 5 is squeezed into the protective housing 1 through the input hole 9, so that the gel coats the outer wall of the cable.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A four-prevention gel protection device for a cable intermediate joint, comprising a protection housing (1), characterized in that, A fixed frame (2) is fixedly connected to the outer side wall of the protective housing (1). A spring (3) is fixedly connected to the inner side wall of the fixed frame (2). One end of the spring (3) away from the fixed frame (2) is fixedly connected to a pressing ring (4). A storage groove (5) is formed in the inner side wall of the protective housing (1). A connecting frame (6) is threadedly connected to the outer side wall of the protective housing (1). An extrusion column (7) is fixedly connected to the side of the connecting frame (6) close to the protective housing (1). An extrusion hole (8) is formed in the side of the protective housing (1) close to the connecting frame (6). An input hole (9) is formed in the inner side wall of the protective housing (1).

2. The four-prevention gel protection device for the cable intermediate joint according to claim 1, wherein A limiting groove (10) is formed in the side of the connecting frame (6) close to the protective housing (1). The inner side wall of the limiting groove (10) is adapted to the outer side wall of the fixed frame (2). A first thread groove (11) is formed in the outer side wall of one end of the protective housing (1) close to the connecting frame (6).

3. The four-prevention gel protection device for cable intermediate joints according to claim 2, characterized in that, A rotating groove (12) is formed in the outer side wall of the connecting frame (6). A rotating ring (13) is rotatably connected to the connecting frame (6) through the rotating groove (12). A first thread sleeve (14) is fixedly connected to the outer side wall of the rotating ring (13). The inner side wall of the first thread sleeve (14) is adapted to the first thread groove (11).

4. The four-prevention gel protection device for a cable intermediate joint according to claim 1, wherein, A second thread groove (15) is formed in the outer side wall of the end of the connecting frame (6) away from the protective housing (1). A second thread sleeve (17) is threadedly connected to the connecting frame (6) through the second thread groove (15).

5. A four-proof gel protection device for a cable intermediate joint according to claim 1, characterized in that, A fixed tooth (16) is fixedly connected to the end of the connecting frame (6) close to the second thread sleeve (17). An extrusion frame (18) is fixedly connected to the end of the second thread sleeve (17) away from the connecting frame (6).

6. The four-prevention gel protection device for a cable joint in the middle according to claim 1, characterized in that, A sealing cover (19) is detachably connected to the center of the outer side wall of the protective housing (1).

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