Metal water leakage joint for cable locking

Abstract

The utility model discloses a metal water leakage joint for cable locking, which comprises a metal joint bolt, a threaded groove arranged on the outer lower side of the metal joint bolt, a metal nut arranged on the outer side of the threaded groove, a step groove arranged in the metal joint bolt, a joint core body arranged in the step groove, a sealing bush arranged in the joint core body, and a sealing sleeve arranged in the sealing bush. A plurality of first water leakage notches are formed in the inner side of the sealing bush and evenly distributed in the sealing bush, a sealing bush inner sleeve is installed in the sealing bush, positioning protrusions matched with the first water leakage notches are arranged on the outer side of the sealing bush inner sleeve, and the positioning protrusions are installed in the first water leakage notches. A plurality of second water leakage notches are evenly formed in the sealing bush inner sleeve, a round nut is installed on the upper side of the outer portion of the metal joint bolt through threads, and the inner side of the round nut is locked and pressed on the sealing bush inner sleeve.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable joint technical field, concretely relates to a metal water leakage joint for cable locking. BACKGROUND

[0002] In many fields related to the application of electric box and electric cabinet, the cable connection and protection of devices such as charging piles are crucial. On the one hand, the cable needs to be connected stably to ensure that charging and other operations can be carried out safely and stably. On the other hand, in actual use environment, there may be accumulated water and other situations. If the accumulated water cannot be handled in time, it is easy to cause the cable to be damp, affecting its performance and service life, and even causing safety hazards. Some cable joints on the market cannot meet the needs of many aspects at the same time in terms of fixing the cable and waterproof drainage, adapting to various cable sizes, etc. There are problems such as unstable fixing, no drainage effect, poor adaptability to different diameter cables, etc. Therefore, there is an urgent need for a metal water leakage joint for cable locking to solve the above problems. SUMMARY

[0003] In view of the problems in the above background art, the purpose of the utility model is to provide a metal water leakage joint for cable locking.

[0004] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0005] A metal water leakage joint for cable locking, comprising a metal joint bolt, a threaded groove is provided on the lower side of the outer part of the metal joint bolt, a metal nut is installed on the outer side of the threaded groove, a stepped groove is provided in the metal joint bolt, a joint core is installed in the stepped groove, a sealing bushing is installed in the joint core, a plurality of first water leakage notches are provided on the inner side of the sealing bushing, the first water leakage notches are evenly arranged on the sealing bushing, a sealing bushing inner sleeve is installed in the sealing bushing, a positioning protrusion matching the first water leakage notch is provided on the outer side of the sealing bushing inner sleeve, the positioning protrusion is installed in the first water leakage notch, a plurality of evenly arranged second water leakage notches are provided in the sealing bushing inner sleeve, a round nut is installed on the upper side of the outer part of the metal joint bolt through threads, and the inner side of the round nut is locked and pressed on the sealing bushing inner sleeve.

[0006] Further limited, the upper side of the threaded groove is provided with a gasket groove, and a flat gasket is installed in the gasket groove. Such a structure design plays a stable installation locking effect when installing.

[0007] Further limited, the top outside of the joint core body is provided with a plurality of uniformly arranged clamping petals, the top inside of the joint core body is provided with an assembly groove, the bottom of the sealing bush is provided with an assembly protrusion, and the assembly protrusion is installed in the assembly groove. When the round nut is rotated downward to be locked, the clamping petals are clamped inward to the sealing bush, so that the locking effect on the cable is achieved.

[0008] Further limited, the bottom outside of the joint core body is provided with a plurality of uniformly arranged positioning plugs, the inside of the metal joint bolt is provided with a positioning slot at the corresponding positioning plug, and the positioning plug is installed in the positioning slot. Such a structure design facilitates the positioning and installation of the joint core body, and prevents rotation during use.

[0009] Further limited, the top outside of the sealing bush inner sleeve is provided with a pressing ring, the bottom of the pressing ring is installed on the top surface of the sealing bush, the inside bottom of the round nut is pressed on the pressing ring, and the sealing bush inner sleeve and the pressing ring are formed in an integrated structure. When the round nut is locked, the round nut is pressed on the pressing ring, and the sealing bush inner sleeve and the sealing bush are fixed by the pressing force of the pressing ring.

[0010] The metal joint bolt, the threaded groove and the metal nut can be quickly and fixedly locked and installed on the case, the joint core body, the sealing bush, the first water leakage gap, the sealing bush inner sleeve, the positioning protrusion, the second water leakage gap and the round nut can realize quick locking and sealing and fixing of the cable, and when it rains outdoors, the accumulated water can be quickly drained through the second water leakage gap to protect the cable from being wet; the use safety of the cable is ensured, and when the diameter of the cable is larger than the size of the sealing bush inner sleeve, the sealing bush inner sleeve can be taken out; at this time, the cable is inserted into the sealing bush, the sealing bush generates extrusion force on the cable, and when it rains, the accumulated water can be quickly drained through the first water leakage gap on the sealing bush to protect the cable from being wet and to prolong the normal service life, and the adaptability to different diameter cables is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings.

[0012] Figure 1 It is an axial side structure schematic view of the metal water leakage joint for cable locking according to the utility model embodiment;

[0013] Figure 2 It is a cross-sectional structure schematic view of the metal water leakage joint for cable locking according to the utility model embodiment;

[0014] Figure 3This is an exploded structural diagram of a metal leak-proof connector for cable locking according to an embodiment of the present invention;

[0015] The symbols for the main components are explained below:

[0016] 1. Metal joint bolt; 2. Threaded groove; 3. Metal nut; 4. Stepped groove; 5. Joint core; 6. Sealing bushing; 7. First leakage notch; 8. Sealing bushing inner sleeve; 9. Positioning protrusion; 10. Second leakage notch; 11. Round nut; 12. Washer groove; 13. Flat washer; 14. Clamping petal; 15. Assembly groove; 16. Assembly protrusion; 17. Positioning insert; 18. Positioning slot; 19. Pressure ring. Detailed Implementation

[0017] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Example 1, as Figure 1 , Figure 2 and Figure 3 As shown, a metal leak-proof connector for cable locking has a threaded groove 2 on the lower outer side of a metal connector bolt 1, a metal nut 3 installed on the outer side of the threaded groove 2, a stepped groove 4 inside the metal connector bolt 1, a connector core 5 installed in the stepped groove 4, a sealing bushing 6 installed in the connector core 5, a plurality of first leak-proof notches 7 on the inner side of the sealing bushing 6, the plurality of first leak-proof notches 7 being evenly arranged on the sealing bushing 6, a sealing bushing inner sleeve 8 installed inside the sealing bushing 6, a positioning protrusion 9 matching the first leak-proof notches 7 on the outer side of the sealing bushing inner sleeve 8, the positioning protrusion 9 being installed in the first leak-proof notches 7, a plurality of evenly arranged second leak-proof notches 10 inside the sealing bushing inner sleeve 8, and a round nut 11 threadedly installed on the upper outer side of the metal connector bolt 1, the inner side of the round nut 11 being locked and pressed against the sealing bushing inner sleeve 8.

[0019] In this embodiment, during installation, the metal connector bolt 1 is first screwed into the corresponding mounting hole of the mounting chassis. The metal nut 3 is then tightened on the threaded groove 2 at one end of the chassis to lock the metal connector bolt 1 onto the chassis. Then, the connector core 5 is installed into the stepped groove 4, the sealing bushing 6 is installed into the connector core 5, and the inner sleeve 8 of the sealing bushing is installed into the sealing bushing 6. The positioning protrusion 9 on the inner sleeve 8 of the sealing bushing is inserted into the first leakage notch 7 of the sealing bushing 6 to achieve positioning installation. After that, the cable is threaded through the inner sleeve 8 of the sealing bushing, and a round nut 11 is installed on the outside of the metal connector bolt 1. A torque wrench is used to apply torque to the round nut 11. The round nut 11 is tightened along the thread to compress the inner sleeve 8 and the sealing bushing 6, so that the inner sleeve 8 of the sealing bushing exerts a compressive force on the cable, thereby preventing deformation and achieving sealing and fixing of the cable.

[0020] In use, the metal joint bolt 1 can fix the cable well, and when it rains outside, the accumulated water can be quickly drained through the second water leakage gap 10 on the inner sleeve 8 of the sealing bush, protecting the cable from moisture and ensuring normal service life.

[0021] When the diameter of the cable is larger than the size of the inner sleeve 8 of the sealing bush, the inner sleeve 8 can be removed. At this time, after the cable is inserted into the sealing bush 6, a torque wrench is used to load torque on the round nut 11, which is tightened to press the sealing bush 6, so that the sealing bush 6 generates an extrusion force on the cable, thereby deforming to achieve sealing and fixation. When it rains outside, the accumulated water can be quickly drained through the first water leakage gap 7 on the sealing bush 6, protecting the cable from moisture and ensuring normal service life.

[0022] The joint core 5 is made of silicone rubber material, which has strong wear resistance and softness when fastened with the cable.

[0023] The metal water leakage joint is made of green and environmentally friendly materials, and the materials are internationally certified for environmental protection, which will not pollute the environment.

[0024] As shown in Figure 2 , this embodiment adds the following structure on the basis of embodiment 1: a gasket groove 12 is arranged on the upper side of the threaded groove 2, and a flat gasket 13 is installed in the gasket groove 12.

[0025] In this embodiment, the flat gasket 13 is first installed in the gasket groove 12 on the threaded groove 2, and then the metal joint bolt 1 is screwed into the corresponding installation case mounting hole, so that the flat gasket 13 is in contact with the plane of the case, and the other end is locked with the metal nut 3 to achieve sealing and locking installation.

[0026] As shown in Figure 2 and Figure 3 , this embodiment adds the following structure on the basis of embodiment 1: a plurality of evenly arranged clamping petals 14 are arranged on the top outer side of the joint core 5, a fitting groove 15 is arranged on the top inner side of the joint core 5, and a fitting protrusion 16 is arranged on the bottom of the sealing bush 6, and the fitting protrusion 16 is installed in the fitting groove 15.

[0027] In this embodiment, when the torque wrench is used to load torque on the round nut 11, the round nut 11 is tightened along the thread to press the clamping petals 14 on the joint core 5, so that the clamping petals 14 tightly hold the sealing bush 6 and the inner sleeve 8 of the sealing bush inward, generating an extrusion force on the cable to achieve sealing and fixation of the cable.

[0028] During installation, the fitting protrusion 16 at the bottom of the sealing bush 6 is inserted into the fitting groove 15 in the joint core 5, and then positioned and installed.

[0029] As shown inFigure 2 and Figure 3 As shown in the figure, the embodiment adds the following structure on the basis of the embodiment 1, the bottom outer side of the joint core 5 is provided with a plurality of evenly arranged positioning plug blocks 17, the inner side of the metal joint bolt 1 is provided with positioning slots 18 corresponding to the positioning plug blocks 17, and the positioning plug blocks 17 are installed in the positioning slots 18.

[0030] In the embodiment, when the joint core 5 is installed, the positioning plug blocks 17 on the bottom outer side of the joint core 5 are corresponded to the positioning slots 18 on the inner side of the metal joint bolt 1, then the joint core 5 is installed on the stepped groove 4 in the metal joint bolt 1, so that the positioning plug blocks 17 are inserted into the positioning slots 18 for positioning, thereby preventing the joint core 5 from rotating in the use process, and achieving the effect of positioning installation.

[0031] As shown in the figure, the embodiment adds the following structure on the basis of the embodiment 1, the bottom outer side of the joint core 5 is provided with a plurality of evenly arranged positioning plug blocks 17, the inner side of the metal joint bolt 1 is provided with positioning slots 18 corresponding to the positioning plug blocks 17, and the positioning plug blocks 17 are installed in the positioning slots 18. Figure 2 and Figure 3 As shown in the figure, the embodiment adds the following structure on the basis of the embodiment 1, the top outer side of the sealing bush inner sleeve 8 is provided with a press ring 19, the bottom of the press ring 19 is installed on the top surface of the sealing bush 6, the inner side bottom of the round nut 11 is pressed on the press ring 19, and the sealing bush inner sleeve 8 and the press ring 19 are integrally formed.

[0032] In the embodiment, when the torque wrench is used to load the torque on the round nut 11, the round nut 11 is screwed along the thread to press the press ring 19, the press ring 19 presses the sealing bush 6, and the sealing bush inner sleeve 8 and the press ring 19 are integrally formed, so that the sealing bush inner sleeve 8 is fixed in the sealing bush 6 and generates extrusion force on the cable under the effect of the tight petal 14, thereby preventing deformation and realizing the sealing and fixing of the cable.

[0033] The above embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used for limiting the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A metal weep for cable gland, characterized in that: The utility model provides a metal joint bolt (1), the outside lower side of metal joint bolt (1) is equipped with thread groove (2), the outside of thread groove (2) is installed metal nut (3), the inside of metal joint bolt (1) is equipped with step groove (4), the inside of step groove (4) is installed joint core (5), the inside of joint core (5) is installed sealing bushing (6), the inside of sealing bushing (6) is equipped with a plurality of first water leakage gap (7), a plurality of first water leakage gap (7) evenly arranged on sealing bushing (6), the inside of sealing bushing (6) is installed sealing bushing inner sleeve (8), the outside of sealing bushing inner sleeve (8) is equipped with with first water leakage gap (7) matched positioning protruding (9), positioning protruding (9) is installed in first water leakage gap (7), the inside of sealing bushing inner sleeve (8) is equipped with a plurality of evenly arranged second water leakage gap (10), the outside upper side of metal joint bolt (1) is installed by thread round nut (11), the inside of round nut (11) is locked and pressed on sealing bushing inner sleeve (8).

2. A metal weep for cable locking according to claim 1, wherein: The upper side of the thread groove (2) is provided with a gasket groove (12), and the gasket groove (12) is provided with a flat gasket (13).

3. A metal weep for cable locking according to claim 2, wherein: The top outer side of the joint core (5) is provided with a plurality of evenly arranged clamping petals (14), and the top inner side of the joint core (5) is provided with a fitting groove (15).

4. A metal weep according to claim 3, wherein: The bottom outer side of the joint core (5) is provided with a plurality of evenly arranged positioning plug blocks (17), and the inner side of the metal joint bolt (1) is provided with a positioning slot (18) corresponding to the positioning plug blocks (17).

5. A metal weep according to claim 4, wherein: The top outer side of the sealing bushing inner sleeve (8) is provided with a compression ring (19), the bottom of the compression ring (19) is installed on the top surface of the sealing bushing (6), the inner bottom of the round nut (11) is pressed on the compression ring (19), and the sealing bushing inner sleeve (8) and the compression ring (19) are integrally formed.

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