A snap-on high-voltage cable joint quick sealing protection device

Abstract

The utility model relates to cable joint technical field especially relates to a buckle type high -voltage cable joint quick sealing protection device, including lower protection cover, upper protection cover and cable joint, be provided with upper protection cover on lower protection cover, be provided with cable joint between lower protection cover and upper protection cover, still include the clamping seat, fixed block and elastic piece card block, four clamping seats are fixedly connected on lower protection cover, four fixed blocks are fixedly connected on upper protection cover, and the elastic piece card block is fixedly connected on fixed block. Through, make the elastic piece card block of fixed block bottom embed in the clamping seat, realize quick closure and mechanical locking, two sealing rings are compressed in the gap between upper protection cover and lower protection cover, form main sealing layer, further enhance the sealing effect through the injection catheter and inject the sealing glue between the cavity of cable joint and lower protection cover and upper protection cover, form reliable double -sealed protection.

Description

Technical Field

[0001] This utility model relates to the field of cable joint technology, and in particular to a snap-fit ​​type high-voltage cable joint quick sealing protection device. Background Technology

[0002] A high-voltage cable connector is a special device used to connect two high-voltage cables, ensuring the continuity of their electrical and mechanical properties and guaranteeing that current can be safely, stably, and reliably transmitted from one cable to another.

[0003] Patent CN218300912U discloses a high-voltage cable connector assembly. It includes a housing composed of an upper shell and a lower shell, with conical boxes installed at both ends of the housing, each with a cable port at its end. A pressure relief box is provided on the outer surface of the upper shell. When using this patent, the assembly is assembled by connecting the outer surfaces of the upper and lower shells, inserting hexagonal screws into the corresponding screw holes, and fixing the upper and lower shells together to form the housing. However, this existing patent lacks a sealing component. High-voltage cable connectors typically operate in humid environments such as underground, tunnels, or outdoors, where moisture and humidity can easily penetrate the housing through the joint between the upper and lower shells and the cable entry point, causing partial discharge or short circuits.

[0004] Therefore, there is a need to provide a snap-fit ​​type high-voltage cable joint quick-sealing protection device. Utility Model Content

[0005] To overcome the shortcomings of existing patents that lack sealing components, high-voltage cable joints typically operate in humid environments such as underground, tunnels, or outdoors. Moisture and humidity can easily penetrate the interior of the box through the joint between the upper and lower shells, cable inlets, and other parts, causing partial discharge or short circuits. This utility model provides a snap-on high-voltage cable joint quick-sealing protection device, which provides double-layer sealing protection for the cable joint through components such as sealing rings and injection conduits.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a snap-fit ​​type high-voltage cable joint quick-sealing protection device, comprising a lower protective cover, an upper protective cover, and a cable joint. The upper protective cover is mounted on the lower protective cover, and the cable joint is positioned between the lower and upper protective covers. The device also includes a retaining seat, a fixing block, an elastic retaining block, a sealing ring, and an injection conduit. Four retaining seats are fixedly connected to the lower protective cover, and four fixing blocks are fixedly connected to the upper protective cover. Elastic retaining blocks are fixedly connected to the fixing blocks. The retaining seats have slots. Two sealing rings are embedded between the upper and lower protective covers. Injection conduits are connected to both the upper and lower protective covers.

[0007] To further explain, it also includes threaded parts and threaded end caps. Both the lower and upper protective covers have two threaded parts. The lower protective cover has two threaded end caps, which are also threadedly connected to the threaded parts of the upper protective cover.

[0008] To further explain, its features include: it also includes an outer conical surface and an inner conical surface; both the lower and upper protective covers have two outer conical surfaces; and the threaded end cap has an inner conical surface.

[0009] To further explain, it also includes a sealing cap; the injection catheter is covered with a sealing cap.

[0010] To further explain, it also includes sealing strips; two sealing strips are embedded between the lower protective cover and the upper protective cover.

[0011] To further explain, the threaded end cap has anti-slip grooves on its surface.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By closing the upper protective cover and the lower protective cover, the elastic element block at the bottom of the fixing block is embedded in the card seat, realizing quick closure and mechanical locking. The two sealing rings are pressed into the gap between the upper protective cover and the lower protective cover to form the main sealing layer. Then, sealant is injected into the cavity between the cable joint and the lower and upper protective covers through the injection conduit to further enhance the sealing effect and form a reliable double sealing protection.

[0013] 2. By screwing in threaded end caps through threaded sections on the lower and upper protective covers, the cable is clamped between the inner and outer protective covers, forming a tight radial seal that effectively prevents moisture and humidity from entering from the ends. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional sectional view of the lower protective cover, upper protective cover, and sealing ring of this utility model.

[0016] Figure 3 This is an exploded view of the card holder, fixing block, and elastic element card block of this utility model.

[0017] Figure 4 This is an exploded view of the lower protective cover, upper protective cover, and threaded end cap of this utility model.

[0018] The markings in the attached diagram are as follows: 1: Lower protective cover, 2: Upper protective cover, 3: Cable connector, 4: Card holder, 5: Fixing block, 6: Elastic element card block, 7: Card groove, 8: Sealing ring, 9: Injection conduit, 10: Sealing cover, 11: Threaded part, 12: Threaded end cap, 13: Outer conical surface, 1301: Inner conical surface, 14: Sealing strip, 15: Anti-slip groove. Detailed Implementation

[0019] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0020] Example 1: A snap-fit ​​type high-voltage cable joint quick-sealing protection device, see reference. Figures 1-4 As shown, it includes a lower protective cover 1, an upper protective cover 2, and a cable connector 3. The upper protective cover 2 is set on the top of the lower protective cover 1, and the cable connector 3 is set between the lower protective cover 1 and the upper protective cover 2. It also includes a card seat 4, a fixing block 5, an elastic element card block 6, a sealing ring 8, and an injection conduit 9. The card seats 4 are symmetrically set on the front and rear sides of the lower protective cover 1 by welding. The fixing blocks 5 are symmetrically set on the left and right sides of the upper protective cover 2 by welding. The elastic element card block 6 is fixedly connected to the bottom of the fixing block 5. The card seat 4 has a card groove 7. The elastic element card block 6 is inserted into the card seat 4 and its own end is inserted into the card groove 7. Two sealing rings 8 are embedded between the upper protective cover 2 and the lower protective cover 1. An injection conduit 9 is connected to both the upper protective cover 2 and the lower protective cover 1.

[0021] See Figure 1 As shown, it also includes a sealing cap 10, which covers the injection conduit 9.

[0022] Before adapting to the cable connector 3, the cable connector 3 is placed between the upper protective cover 2 and the lower protective cover 1, and then the upper protective cover 2 and the lower protective cover 1 are closed, so that the elastic element block 6 at the bottom of the fixing block 5 is embedded in the card seat 4. Its end automatically locks into the card groove 7 under its own elasticity, realizing quick closure and mechanical locking. The two sealing rings 8 are pressed into the gap between the upper protective cover 2 and the lower protective cover 1 to form the main sealing layer. Then, sealant is injected into the cavity between the cable connector 3 and the lower protective cover 1 and the upper protective cover 2 through the injection conduit 9 to further enhance the sealing effect and achieve pressure balance, forming a reliable double sealing protection. After the injection is completed, the sealing cover 10 is covered on the injection conduit 9 to prevent leakage.

[0023] Example 2: Based on Example 1, refer to Figure 1 , Figure 2 and Figure 4 As shown, it also includes a threaded part 11 and a threaded end cap 12. The lower protective cover 1 and the upper protective cover 2 are both provided with threaded parts 11 on the left and right sides. The lower protective cover 1 is provided with threaded end caps 12 on the left and right sides. The threaded end caps 12 are also threadedly connected to the threaded parts 11 of the upper protective cover 2.

[0024] See Figure 4 As shown, it also includes a sealing strip 14, with two sealing strips 14 embedded between the lower protective cover 1 and the upper protective cover 2.

[0025] See Figure 1 As shown, the threaded end cap 12 has an anti-slip groove 15 on its surface.

[0026] After the lower protective cover 1 and the upper protective cover 2 are closed, the threaded end cap 12 is screwed into the threaded portion 11 on the lower protective cover 1 and the upper protective cover 2, so that the cable is clamped to the inner lower protective cover 1 and the upper protective cover 2, forming a tight radial seal, which effectively prevents moisture and humidity from entering from the end. At the same time, the sealing strip 14 is compressed and fills the micro gaps of the joint surface. The threaded end cap 12 is provided with an anti-slip groove 15, which makes it easy to screw the threaded end cap 12.

[0027] See Figure 2 and Figure 4 As shown, it also includes an outer conical surface 13 and an inner conical surface 1301. The left and right edges of the lower protective cover 1 and the upper protective cover 2 are both chamfered with outer conical surfaces 13, and the threaded end cap 12 is chamfered with an inner conical surface 1301.

[0028] When the outer conical surface 13 of the edge of the current protective cover 1 and the upper protective cover 2 mates with the inner conical surface 1301 inside the threaded end cover 12, the two conical surfaces will fit tightly together as the threaded end cover 12 is tightened.

[0029] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A snap-fit ​​type high-voltage cable joint quick-sealing protection device, comprising a lower protective cover (1), an upper protective cover (2), and a cable joint (3), wherein the upper protective cover (2) is disposed on the lower protective cover (1), and the cable joint (3) is disposed between the lower protective cover (1) and the upper protective cover (2), characterized in that: It also includes a card holder (4), a fixing block (5), an elastic element card block (6), a sealing ring (8), and an injection conduit (9). Four card holders (4) are fixedly connected to the lower protective cover (1), four fixing blocks (5) are fixedly connected to the upper protective cover (2), and an elastic element card block (6) is fixedly connected to the fixing block (5). The card holder (4) has a card slot (7). Two sealing rings (8) are embedded between the upper protective cover (2) and the lower protective cover (1). An injection conduit (9) is connected to both the upper protective cover (2) and the lower protective cover (1).

2. The snap-fit ​​type high-voltage cable joint quick-sealing protection device according to claim 1, characterized in that: It also includes a threaded part (11) and a threaded end cap (12). Both the lower protective cover (1) and the upper protective cover (2) have two threaded parts (11). The lower protective cover (1) has two threaded end caps (12) threadedly connected to the threaded part (11) of the upper protective cover (2).

3. A snap-fit ​​type high-voltage cable joint quick-sealing protection device according to claim 2, characterized in that: It also includes an outer conical surface (13) and an inner conical surface (1301). The lower protective cover (1) and the upper protective cover (2) each have two outer conical surfaces (13), and the threaded end cap (12) has an inner conical surface (1301).

4. A snap-fit ​​type high-voltage cable joint quick-sealing protection device according to claim 3, characterized in that: It also includes a sealing cap (10), and the injection conduit (9) is covered with a sealing cap (10).

5. A snap-fit ​​type high-voltage cable joint quick-sealing protection device according to claim 4, characterized in that: It also includes a sealing strip (14), with two sealing strips (14) embedded between the lower protective cover (1) and the upper protective cover (2).

6. A snap-fit ​​type high-voltage cable joint quick-sealing protection device according to claim 5, characterized in that: The threaded end cap (12) has anti-slip grooves (15) on its surface.

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