Pre-branched cable

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a pre-branched cable, which comprises two protective shells which are buckled with each other. The wire embedding grooves are formed in the opposite walls of the two protective shells and used for embedding cables; the plurality of connection sealing structures are respectively arranged at the notches of the wire embedding groove, and are used for fastening and connecting the two buckled protective shells and sealing the notches; the anti-slip structure is arranged between the wire embedding groove and the cable, is used for limiting and stabilizing the cable, and is used for solving the problem that the junction of the insulating shell and the cable outer sheath is poor in sealing performance, so that the moisture-proof and waterproof performance of the branch connector is insufficient; and meanwhile, when the branch connector is pulled, the branch connector is easy to fall off from the inside of the insulating shell.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and in particular relates to a pre-branching cable. Background Art

[0002] Prefabricated branch cables are a type of cable used in the lighting field. They are designed with a trunk cable and several branch cables of predetermined length or position, such as one-to-one, one-to-two, one-to-three, etc. They are suitable for power supply trunks of medium and high-rise buildings with a rated voltage of 1KV and below in factories, shopping malls, airports, outdoor squares, residential areas and other scenes, to replace the currently commonly used closed bus ducts. The use of cables with branches makes installation flexible and convenient, shortens the circuit laying construction period, greatly reduces material costs and construction costs, and ensures the safety and reliability of power distribution.

[0003] The prefabricated branch cables currently produced have a molded insulating shell arranged on the outside of the branch connector, but the sealing performance of the junction between the insulating shell and the cable outer sheath is poor, resulting in insufficient moisture-proof and waterproof performance of the branch connector; at the same time, the branch connector is easy to fall off from the insulating shell when pulled. Utility Model Content

[0004] Based on the problems mentioned in the above background technology, the utility model provides a pre-branching cable, which is used to solve the problem that the sealing at the junction of the insulating shell and the outer sheath of the cable is poor, resulting in insufficient moisture-proof and waterproof performance of the branch connector; at the same time, the branch connector is easy to fall off from the insulating shell when pulled.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A pre-branching cable, comprising:

[0007] A protective shell, wherein two protective shells are provided, and the two protective shells are buckled together;

[0008] A cable burying trough, which is arranged on the opposite walls of the two protective shells and is used for burying cables;

[0009] A connection sealing structure, wherein a plurality of connection sealing structures are provided and are respectively arranged at each notch of the buried wire groove, and are used to fasten and connect the two protective shells of the buckle and seal each notch;

[0010] The anti-slip structure is arranged between the buried cable groove and the cable, and is used to limit and stabilize the cable.

[0011] On the basis of the above technical solution, the present invention also makes the following improvements:

[0012] Furthermore, the buried cable trough includes a main buried cable trough and a branch buried cable trough, one port of the branch buried cable trough is connected to the middle of the main buried cable trough, and the two ports of the main buried cable trough and the other port of the branch buried cable trough both penetrate to the outside of the side wall of the protective shell.

[0013] Furthermore, the cable includes a main cable and a branch cable, one end of the branch cable is connected to the middle of the main cable, the main cable is buried in a main buried cable trough, and the branch cable is buried in a branch buried cable trough.

[0014] Further, the connection sealing structure includes a half-shaped conical screw sleeve and a conical nut, the number of the half-shaped conical screw sleeve is twice the number of the conical nut, each of the half-shaped conical screw sleeve is provided with a shrinkage rupture, each of the half-shaped conical screw sleeve is respectively provided on the notch wall of the main buried wire groove and the branch buried wire groove, each of the conical nut is respectively screwed on the two half-shaped conical screw sleeves at the same notch, the outer wall of the half-shaped conical screw sleeve is an inverted cone, the inner wall of the conical nut is a forward cone, and the inner wall taper of the conical nut is smaller than the outer wall taper of the half-shaped conical screw sleeve;

[0015] The inner wall of each of the semi-conical conical screw sleeves is provided with a mounting groove, a rubber ring is provided in the mounting groove, and each of the rubber rings is respectively sleeved on the main cable and the branch cable.

[0016] Furthermore, the anti-slip structure includes an anti-slip groove, and there are multiple anti-slip grooves, which are respectively arranged in the main buried cable groove and the branch buried cable groove. Each anti-slip groove is provided with an anti-slip ring, and the inner wall of each anti-slip ring is respectively bonded to the outer peripheral wall of the main cable and the branch cable.

[0017] Furthermore, a fixing block and a tying block are respectively provided on the upper and lower edges of the buckled walls of one of the protective shells, a tying belt is provided on the fixing block, and a limiting groove is provided on the other protective shell.

[0018] Beneficial effects of the utility model:

[0019] 1. Through the connection sealing structure, when the two protective shells are buckled together, the connection sealing structure can be used to fasten the two buckled protective shells together so that they are firmly buckled together; and the joint between the notch of the buried cable trough and the cable can be sealed to prevent water from penetrating into the protective shell through the notch;

[0020] 2. By setting up the anti-slip structure, when the cable is buried in the buried cable groove of the protective shell, the anti-slip structure can be used to limit and stabilize the cable to prevent the branch cable from slipping out of the protective shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0022] Figure 1 This is a structural diagram of a pre-branching cable of the utility model;

[0023] Figure 2 This is a schematic diagram of a pre-branching cable of the utility model;

[0024] Figure 3 This is an internal structure diagram of a pre-branching cable of the utility model;

[0025] Figure 4 The utility model is an internal plan view of a pre-branching cable.

[0026] The attached drawings are marked as follows:

[0027] 101. Protective shell; 102. Main buried cable trough; 103. Branch buried cable trough; 201. Main cable; 202. Branch cable; 301. Anti-slip groove; 302. Anti-slip ring; 401. Semi-conical conical screw sleeve; 402. Conical nut; 403. Installation groove; 404. Rubber ring; 405. Shrinkage gap; 501. Fixing block; 502. Binding belt; 503. Binding block; 504. Limiting groove. DETAILED DESCRIPTION

[0028] like Figure 1 to Figure 4 As shown, a pre-branching cable comprises:

[0029] A protective shell 101, wherein two protective shells 101 are provided, and the two protective shells 101 are buckled together;

[0030] A buried cable trough, which is arranged on opposite walls of two protective shells 101, and comprises a main buried cable trough 102 and a branch buried cable trough 103, wherein one end of the branch buried cable trough 103 is connected to the middle of the main buried cable trough 102, and both ends of the main buried cable trough 102 and the other end of the branch buried cable trough 103 are connected to the outside of the side wall of the protective shell 101, and the cable comprises a main cable 201 and a branch cable 202, wherein one end of the branch cable 202 is connected to the middle of the main cable 201; an anti-slip structure, which is arranged between the buried cable trough and the cable, and comprises an anti-slip groove 301, wherein a plurality of anti-slip grooves 301 are arranged, and are respectively arranged in the main buried cable trough 102 and the branch buried cable trough 103, and an anti-slip ring 302 is arranged in each anti-slip groove 301;

[0031] When in use, firstly, each anti-slip ring 302 is firmly bonded to the corresponding position of the outer peripheral wall of the main buried cable groove 102 and the branch buried cable groove 103 by bonding, then the two protective shells 101 are broken open, and then the main cable 201 is buried in the main buried cable groove 102, and the branch cable 202 is buried in the branch buried cable groove 103, and each anti-slip ring 302 is respectively stuck in the corresponding anti-slip groove 301 in the main buried cable groove 102 and the branch buried cable groove 103, and finally the two protective shells 101 are buckled together, so that the combination of the main cable 201 and the branch cable 202 is placed between the two protective shells 101; and due to the provision of the anti-slip groove 301 and the anti-slip ring 302, the main cable 201 and the branch cable 202 between the two protective shells 101 can be limited and stabilized, so as to prevent the branch cable 202 from falling off from the protective shell 101 when being pulled;

[0032] A connection sealing structure, wherein a plurality of connection sealing structures are provided and are respectively provided at each notch of the buried cable groove, wherein the connection sealing structure comprises a semi-conical conical screw sleeve 401 and a conical nut 402, wherein the number of the semi-conical conical screw sleeve 401 is twice the number of the conical nut 402, and each semi-conical conical screw sleeve 401 is provided with a shrinkage breach 405, and through the provided shrinkage breach 405, when the conical nut 402 is screwed into the semi-conical conical screw sleeve 401, the semi-conical conical screw sleeve 401 is squeezed to shrink toward the center of the hole;

[0033] Each half-shaped conical screw sleeve 401 is respectively arranged on the notch wall of the main buried wire groove 102 and the branch buried wire groove 103, and each conical nut 402 is respectively screwed on the two half-shaped conical screw sleeves 401 at the same notch. The outer wall of the half-shaped conical screw sleeve 401 is an inverted cone, and the inner wall of the conical nut 402 is a forward cone. Since the taper of the inner wall of the conical nut 402 is smaller than the taper of the outer wall of the half-shaped conical screw sleeve 401, in the process of screwing the conical nut 402 on the two half-shaped conical screw sleeves 401 at the same notch, the inner circumferential wall of the conical nut 402 can squeeze the outer circumferential wall of the half-shaped conical screw sleeve 401, so that the half-shaped conical screw sleeve 401 is squeezed to shrink toward the center of the hole, thereby finally realizing the stable connection of the two buckled protective shells 101;

[0034] The inner wall of each half-shaped conical screw sleeve 401 is provided with a mounting groove 403, and a rubber ring 404 is provided in the mounting groove 403. Each rubber ring 404 is respectively sleeved on the main cable 201 and the branch cable 202. When the conical nut 402 is screwed onto the two half-shaped conical screw sleeves 401 at the same notch, so that the half-shaped conical screw sleeves 401 are squeezed and contracted toward the center of the hole, the half-shaped conical screw sleeves 401 can further squeeze the rubber ring 404, so that the sealing performance of the joint between the half-shaped conical screw sleeve 401 and the cable can be further enhanced, and water is prevented from penetrating into the protective shell 101 through the gap between the half-shaped conical screw sleeve 401 and the cable.

[0035] A fixing block 501 and a tying block 503 are respectively provided on the upper and lower edges of the buckled wall of one of the protective shells 101, and a tying block 503 is provided on the fixing block 501. A tying belt 502 is provided on the fixing block 501, and a limiting groove 504 is provided on the other protective shell 101. In order to enhance the closing tightness at the middle position of the two buckled protective shells 101, sealant can be applied to the buckled walls of the protective shells 101 before the two protective shells 101 are buckled together, and then the two protective shells 101 are buckled together, and then the tying belt 502 is pulled and placed in the limiting groove 504, and then the tying belt 502 is fastened and tied to the tying block 503, so that the tying belt 502 is tightly tied to the other protective shell 101, so that the middle position of the two buckled protective shells 101 can be tightly closed.

[0036] The utility model is described in detail above. The description of the specific embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A pre-branching cable, characterized in that: include: A protective shell (101), wherein two protective shells (101) are provided, and the two protective shells (101) are buckled together; A cable burying groove, which is arranged on opposite walls of the two protective shells (101) and is used for burying cables; A connection sealing structure, wherein a plurality of the connection sealing structures are provided and are respectively arranged at each notch of the buried wire groove, and are used to fasten and connect two buckled protective shells (101) and seal each notch; The anti-slip structure is arranged between the buried cable groove and the cable, and is used to limit and stabilize the cable.

2. A pre-branching cable according to claim 1, characterized in that: The buried cable trough comprises a main buried cable trough (102) and a branch buried cable trough (103); one end of the branch buried cable trough (103) is connected to the middle of the main buried cable trough (102); and both ends of the main buried cable trough (102) and the other end of the branch buried cable trough (103) are extended to the outside of the side wall of the protective shell (101).

3. A pre-branching cable according to claim 2, characterized in that: The cable comprises a main cable (201) and a branch cable (202), one end of the branch cable (202) is connected to the middle of the main cable (201), the main cable (201) is buried in a main buried cable trough (102), and the branch cable (202) is buried in a branch buried cable trough (103).

4. A pre-branching cable according to claim 3, characterized in that: The connection sealing structure comprises a half-shaped conical screw sleeve (401) and a conical nut (402), the number of the half-shaped conical screw sleeve (401) is twice the number of the conical nut (402), each of the half-shaped conical screw sleeve (401) is provided with a contraction rupture (405), each of the half-shaped conical screw sleeve (401) is respectively provided on the notch wall of the main buried wire groove (102) and the branch buried wire groove (103), each of the conical nut (402) is respectively screwed on the two half-shaped conical screw sleeves (401) at the same notch, the outer wall of the half-shaped conical screw sleeve (401) is inverted cone shape, the inner wall of the conical nut (402) is in forward cone shape, and the taper of the inner wall of the conical nut (402) is smaller than the taper of the outer wall of the half-shaped conical screw sleeve (401); The inner wall of each of the semi-conical conical screw sleeves (401) is provided with a mounting groove (403), a rubber ring (404) is provided in the mounting groove (403), and each of the rubber rings (404) is respectively sleeved on the main cable (201) and the branch cable (202).

5. A pre-branching cable according to claim 3, characterized in that: The anti-slip structure comprises an anti-slip groove (301), a plurality of the anti-slip grooves (301) are provided, and are respectively arranged in the main buried cable groove (102) and the branch buried cable groove (103), each of the anti-slip grooves (301) is provided with an anti-slip ring (302), and the inner wall of each anti-slip ring (302) is respectively bonded to the outer peripheral wall of the main cable (201) and the branch cable (202).

6. A pre-branching cable according to claim 1, characterized in that: A fixing block (501) and a tying block (503) are respectively arranged on the upper and lower edges of the buckled walls of one of the protective shells (101), a tying belt (502) is arranged on the fixing block (501), and a limiting groove (504) is arranged on the other protective shell (101).

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