A cable connection structure

Abstract

The application discloses a cable connecting structure, which comprises an insulating sleeve sleeved on a sleeve pipe, a static contact connected with the sleeve pipe, a dynamic contact connected with the static contact, and a sealing pipe connected with the dynamic contact, which are arranged in the inner cavity of the insulating sleeve in sequence; a sealing cover is sleeved on the other end of the insulating sleeve; the end of the dynamic contact connected with the static contact is provided with a static contact accommodating cavity, the static contact is inserted into the static contact accommodating cavity, and the inner wall of the static contact accommodating cavity is provided with a static contact positioning ring and a contact finger; the end of the dynamic contact connected with the sealing pipe is provided with a cable accommodating cavity, the cable is inserted into the cable accommodating cavity after sequentially penetrating through the sealing cover and the sealing pipe, and the inner wall of the cable accommodating cavity is provided with a fastener for fastening the cable.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electrical equipment, and particularly relates to a cable connecting structure. BACKGROUND

[0002] In the prior art, the sleeve of the electrical equipment is first connected with a variable-diameter bolt, and then connected with the cable fitting through a hook mode, a nut fastening mode or the like on the variable-diameter bolt. This connecting mode often causes the connecting fitting to be not tightly and reliably connected, resulting in excessively large loop resistance, which causes high temperature and thus causes a power accident.

[0003] In addition, the sleeve of the electrical equipment is sealed with a three-layer composite cable accessory. Such a design requires very high construction technology and construction skill of the cable, requires the shielding layer and the semi-conductive layer of the cable to be completely and tightly combined with the semi-conductive layer of the cable accessory, and cannot damage the insulation layer of the cable. More than 90% of accidents are caused by improper treatment of the connecting part of the cable and the cable accessory during construction.

[0004] Therefore, it is very important to design a cable connecting structure which is tightly connected, has good sealing effect, is safe, and can reduce the requirements for construction workers. SUMMARY

[0005] The present application aims to overcome the deficiencies of the prior art and provide a cable connecting structure.

[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by the present application is as follows:

[0007] The cable connecting structure comprises an insulating sleeve (2) sleeved on one end of a sleeve (1), a static contact (3) connected with the sleeve (1) is arranged in the inner cavity of the insulating sleeve (2), a movable contact (4) connected with the static contact (3) is arranged in the inner cavity of the insulating sleeve (2), and a sealing pipe (5) connected with the movable contact (4) is arranged in the inner cavity of the insulating sleeve (2). A sealing cover (6) is sleeved on the other end of the insulating sleeve (2). One end of the movable contact (4) connected with the static contact (3) is provided with a static contact accommodating cavity, the static contact (3) is inserted into the static contact accommodating cavity, and a static contact positioning ring (7) and a contact finger (8) are arranged on the inner wall of the static contact accommodating cavity. One end of the movable contact (4) connected with the sealing pipe (5) is provided with a cable accommodating cavity, a cable (9) is inserted into the cable accommodating cavity after sequentially passing through the sealing cover (6) and the sealing pipe (5), and a fastener (10) for fastening the cable (9) is arranged on the inner wall of the cable accommodating cavity.

[0008] Preferably, the static contact (3) is connected with the sleeve (1) through a threaded connection mode, and one end of the static contact (3) away from the sleeve (1) is provided with a through hole (12).

[0009] Preferably, the static contact positioning ring (7) is symmetrically arranged at the static contact entrance of the inner wall of the static contact accommodating cavity, or is annularly arranged at the static contact entrance of the inner wall of the static contact accommodating cavity.

[0010] Preferably, the contact finger (8) is symmetrically arranged at the inner wall of the static contact accommodating cavity, or is annularly arranged at the inner wall of the static contact accommodating cavity.

[0011] Preferably, the contact finger (8) is a spring contact finger or a watchband contact finger.

[0012] Preferably, the fastener (10) is symmetrically arranged at the inner wall of the cable accommodating cavity, or is annularly arranged at the inner wall of the cable accommodating cavity.

[0013] Preferably, the fastener (10) is a fastening screw.

[0014] Preferably, the cable entrance end of the sealing cover (6) is provided with a limiting tie (11).

[0015] Preferably, the sleeve (1) is an electrical equipment incoming line sleeve or an electrical equipment outgoing line sleeve.

[0016] Preferably, the insulating sleeve (2) is a rubber insulating sleeve, and the outer side of the insulating sleeve (2) is an umbrella skirt structure.

[0017] The application will be further described below:

[0018] In the application, the insulating sleeve is provided, one end of the insulating sleeve is tightly sleeved on the sleeve, and the other end is sleeved with the sealing cover, so that the area connected by the sleeve, the static contact, the dynamic contact and the sealing pipe is surrounded. After the cable passes through the sealing cover and then passes through the sealing pipe, the inner diameter of the sealing pipe is designed according to the size of the cable and is tightly connected with the cable. After the cable passes through the sealing pipe, it is inserted into the cable accommodating cavity of the dynamic contact and is fastened by the fastener arranged on the inner wall of the cable accommodating cavity. In this way, the whole connection area forms a sealed area, which not only can effectively prevent impurities or small animals from entering the connection area and damaging the components in the connection area, but also can prevent water from entering to reduce the electrical performance.

[0019] In the application, the sealing cover and the sealing pipe are designed, only the insulating layer of the cable needs to pass through the sealing cover and the sealing pipe, the construction is simple and easy to operate, which solves the problem that the construction technology of the cable and the construction skill of the construction worker are required to be high during the construction process. In addition, the outer side of the insulating sleeve is an umbrella skirt structure, which can increase the creepage distance.

[0020] The static contact is designed in the application, one end of the static contact is connected with the sleeve according to the standard design of the sleeve, the other end of the static contact is inserted into the static contact accommodating cavity of the moving contact and is fixed by the positioning ring arranged on the inner wall of the static contact accommodating cavity, and the part of the static contact inserted into the static contact accommodating cavity is connected with the contact finger arranged on the inner wall of the static contact accommodating cavity, and the contact finger has the conductive effect. The end of the static contact away from the sleeve is provided with a through hole, and the through hole is used for facilitating construction: when the static contact is inserted into the sleeve, the force assisting rod is inserted at the through hole, and the static contact can be rotated by twisting the force assisting rod, so that the static contact is connected and closely attached with the sleeve, and the contact is good, and the contact resistance meets the requirements.

[0021] The limiting binding belt is arranged at the cable inlet section of the sealing cover, and the cable can be further fastened. Such design can make the connection between components more closely and reliably, and prolong the service life of the components. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The structural schematic diagram of the cable connection structure is shown.

[0023] In the figure: 1, sleeve; 2, insulating sleeve; 3, static contact; 4, moving contact; 5, sealing pipe; 6, sealing cover; 7, static contact positioning ring; 8, contact finger; 9, cable; 10, fastener; 11, limiting binding belt; 12, through hole. DETAILED DESCRIPTION

[0024] Example 1

[0025] Reference Figure 1 The cable connection structure includes the insulating sleeve 2 sleeved on the sleeve 1, the static contact 3 connected with the sleeve 1, the moving contact 4 connected with the static contact 3, and the sealing pipe 5 connected with the moving contact 4 arranged in the inner cavity of the insulating sleeve 2 in sequence; the sealing cover 6 is sleeved on the other end of the insulating sleeve 2; the static contact accommodating cavity is arranged on the end of the moving contact 4 connected with the static contact 3, the static contact 3 is inserted into the static contact accommodating cavity, the static contact positioning ring 7 and the contact finger 8 are arranged on the inner wall of the static contact accommodating cavity; the cable accommodating cavity is arranged on the end of the moving contact 4 connected with the sealing pipe 5, the cable 9 is inserted into the cable accommodating cavity after passing through the sealing cover 6 and the sealing pipe 5 in sequence, and the fastener 10 for fastening the cable 9 is arranged on the inner wall of the cable accommodating cavity.

[0026] The static contact 3 is connected with the sleeve 1 through thread connection, and the end of the static contact 3 away from the sleeve 1 is provided with a through hole. The static contact positioning ring 7 is symmetrically arranged at the static contact entrance of the inner wall of the static contact accommodating cavity or is annularly arranged at the static contact entrance of the inner wall of the static contact accommodating cavity. The contact finger 8 is symmetrically arranged at the inner wall of the static contact accommodating cavity or is annularly arranged at the inner wall of the static contact accommodating cavity. The contact finger 8 is a spring contact finger or a watchband contact finger. The fastener 10 is symmetrically arranged at the inner wall of the cable accommodating cavity or is annularly arranged at the inner wall of the cable accommodating cavity. The fastener 10 is a fastening screw. The cable entrance end of the sealing cover 6 is provided with a limiting tie 11. The sleeve 1 is an electrical equipment incoming line sleeve or an electrical equipment outgoing line sleeve. The insulating sleeve 2 is a rubber insulating sleeve, and the outer side of the insulating sleeve 2 is a shed structure.

Claims

1. A cable connection structure, characterized by comprising: The cable connection structure comprises an insulating sleeve (2) sleeved on the sleeve (1), a static contact (3) connected with the sleeve (1) is arranged in the inner cavity of the insulating sleeve (2), a dynamic contact (4) connected with the static contact (3) is arranged in the inner cavity of the insulating sleeve (2), and a sealing pipe (5) connected with the dynamic contact (4) is arranged in the inner cavity of the insulating sleeve (2); a sealing cover (6) is sleeved on the other end of the insulating sleeve (2); the end of the dynamic contact (4) connected with the static contact (3) is provided with a static contact accommodating cavity, the static contact (3) is inserted into the static contact accommodating cavity, the inner wall of the static contact accommodating cavity is provided with a static contact positioning ring (7) and a contact finger (8); the end of the dynamic contact (4) connected with the sealing pipe (5) is provided with a cable accommodating cavity, a cable (9) is inserted into the cable accommodating cavity after sequentially passing through the sealing cover (6) and the sealing pipe (5), and the inner wall of the cable accommodating cavity is provided with a fastener (10) for fastening the cable (9).

2. The cable connection structure of claim 1, wherein The static contact (3) is connected with the sleeve (1) in a threaded connection mode; and the end of the static contact (3) away from the sleeve (1) is provided with a through hole (12).

3. The cable connection structure of claim 1, wherein The static contact positioning ring (7) is symmetrically arranged at the static contact entrance of the inner wall of the static contact accommodating cavity or is annularly arranged at the static contact entrance of the inner wall of the static contact accommodating cavity.

4. The cable connection structure of claim 1, wherein The contact finger (8) is symmetrically arranged on the inner wall of the static contact accommodating cavity or is annularly arranged on the inner wall of the static contact accommodating cavity.

5. The cable connection structure of claim 1, wherein The contact finger (8) is a spring contact finger or a watchband contact finger.

6. The cable connection structure of claim 1, wherein The fastener (10) is symmetrically arranged on the inner wall of the cable accommodating cavity or is annularly arranged on the inner wall of the cable accommodating cavity.

7. The cable connection structure of claim 1, wherein The fastener (10) is a fastening screw.

8. The cable connection structure of claim 1, wherein The cable entrance end of the sealing cover (6) is provided with a limiting tie (11).

9. The cable connection structure according to any one of claims 1 to 8, wherein The sleeve (1) is an electrical equipment incoming line sleeve or an electrical equipment outgoing line sleeve.

10. The cable connection structure of claim 9, wherein The insulating sleeve (2) is a rubber insulating sleeve, and the outer side of the insulating sleeve (2) is a shed structure.

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