A single-core branch cable

Abstract

The utility model relates to cable technical field, and disclose a single core branch cable, including main cable, branch cable, coupling piece and branch sheath, the coupling piece includes left component, right component, clamping piece, first through -hole, second through -hole, end stud, through -hole and end nut, adopt this structure, coupling piece adopts left component, right component and forms combined structure with clamping piece, and is fixed through end stud cooperation after clamping, realizes the split detachable connection of main cable and branch cable, can individually dismount clamping piece and branch cable when overhauling, need not to destroy the connecting structure of main cable, simultaneously left component and right component close again, and then clamping piece is clamped, and through the form that end stud passes through through -hole, can avoid left component and right component because long -term use and the close clearance of main cable increase, and the conduction contact area of main cable becomes small, thereby leading to the problem of resistance rise and local heating.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically a single-core branch cable. Background Technology

[0002] Wires and cables are wire products used to transmit electrical (magnetic) energy, information, and realize the conversion of electromagnetic energy. In a broad sense, wires and cables are also simply referred to as cables; in a narrow sense, cables refer to insulated cables. With the rapid development of my country's construction industry, large and super-large buildings are now common throughout the country. Pre-branched cables, which have low requirements for the operating environment, simple structure, and small footprint, are widely used in these buildings. It is a product composed of various accessories, consisting of four parts: 1. Main cable, 2. Branch lines, 3. Branch joints, 4. Related accessories such as cable hangers, slings, mounting brackets, and clamps.

[0003] Patent document CN 216958548 U discloses a low-voltage single-core spliced ​​pre-branched cable main cable, branch cables, connectors, and branch sheaths, providing a branch cable structure that is simple in structure, has through holes and grooves, and is easy and stable to install. However, the above-mentioned prior art still has problems in use: the existing branch sheaths need to be sealed and fixed by a heat gun, and the outside needs to be reinforced with a metal strip. During maintenance, the metal strip must be removed first, the heat-shrinked branch sheath must be destroyed (it cannot be reused), and then the bolts of the connectors must be removed to separate the main cable and the branch cable. This process is complicated and can damage the sheath components. Utility Model Content

[0004] The present invention provides a single-core branch cable to solve the problems of difficulty in separating the main cable and branch cable and loss of sheath components in the existing technology.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A single-core branch cable includes a main cable, a branch cable, a connector, and a branch sheath. The connector includes a detachably connected left component and a right component, and a snap-fit ​​component that snaps onto one end of the left and right components after they are closed. When the left and right components are closed, a first through hole is formed for fitting the main cable. The snap-fit ​​component has a second through hole for fitting the branch cable. When the left and right components are closed, an end stud is formed. The rear end of the snap-fit ​​component has a through hole for the end stud to pass through. An end nut is threaded onto the end stud. In use, first close and install the left and right components outside the main cable, so that the main cable is located in the first through hole. Then, snap the snap-fit ​​connector on one end of the closed left and right components. The branch cable is installed on the snap-fit ​​connector. After the snap-fit ​​connector is installed in place, let the end stud formed by the closed left and right components pass through the through hole of the snap-fit ​​connector. Then install the end nut on the end stud. If the main cable needs to be disassembled and assembled separately later, the branch cable and snap-fit ​​connector can be removed directly without completely removing the connector. This structure uses a left and right component as the connector, which together with the snap-fit ​​component forms a combined structure. After snapping, it is fixed with end studs, realizing a separate and detachable connection between the main cable and the branch cable. During later maintenance, the snap-fit ​​component and the branch cable can be disassembled and installed separately without damaging the connection structure of the main cable. At the same time, after the left and right components are closed, they are snapped with the snap-fit ​​component, and the end studs pass through the through hole. This avoids the problem of increased resistance and localized heating caused by the increased gap between the left and right components and the main cable due to long-term use, which reduces the conductive contact area with the main cable.

[0006] Furthermore, both the left and right components have a locking protrusion at the end that engages with the locking member, and the locking member has a T-slot for engaging the locking protrusion. With this structure, after closure, the left and right components form a T-shaped block through their locking protrusions and engage within the T-slot, thus ensuring the stability of the closed structure of the left and right components under the constraint of the T-slot on the locking member.

[0007] Furthermore, the left and right components intersect at the other ends of the corresponding latching protrusions, and the sides of the left and right components near the latching protrusions are detachably connected by component bolts. This structure allows the left and right components to be rotated and closed directly during installation, followed by the installation of the component bolts. This results in a tighter fit between the components and the main cable, reducing the likelihood of gaps. Additionally, the left and right components do not require additional limiting structures, thus preventing misalignment.

[0008] Furthermore, the branch sheath includes a detachably connected left sheath and a right sheath. A groove for embedding the connector and snap-fit ​​is provided between the left and right sheaths, as well as an entry hole for the main cable and an exit hole for the branch cable. Sealing gaskets are provided on the mating surfaces of the left and right sheaths. Circumferential metal clamps are provided on the left and right sheaths corresponding to the entry and exit holes. Specifically, the sealing gaskets can be silicone rubber gaskets, and the contact points between the sealing gaskets and the main and branch cables are on their respective insulation sheaths. This structure, making the branch sheath a split-type structure, avoids the need to directly damage the branch sheath during assembly and disassembly, preventing waste. Furthermore, the circumferential metal clamps corresponding to the entry and exit holes ensure stable closure of the left and right sheaths, facilitating disassembly and stable fixation to the main and branch cables. Simultaneously, the sealing gaskets on the mating surfaces of the left and right sheaths effectively prevent the intrusion of moisture and dust.

[0009] Furthermore, both the connector and the snap-fit ​​element are made of copper. This structure, using copper, provides good electrical conductivity for both the snap-fit ​​element and the connector.

[0010] Beneficial effects: The connector consists of a left component and a right component, which together form a combined structure with the snap-fit ​​component. After snapping, it is fixed with the end studs, realizing the separate and detachable connection of the main cable and the branch cable. During later maintenance, the snap-fit ​​component and the branch cable can be disassembled and installed separately without damaging the connection structure of the main cable. At the same time, after the left and right components are closed, they are snapped with the snap-fit ​​component, and the end studs pass through the through hole. This can avoid the problem of increased resistance and localized heat generation caused by the increased gap between the left and right components and the main cable due to long-term use, which reduces the conductive contact area between the left and right components and the main cable. Attached Figure Description

[0011] Figure 1 This is a first oblique view of the connector in this embodiment; Figure 2 This is a second oblique view of the connector in this embodiment; Figure 3 This is a front view of the left sheath in this embodiment.

[0012] Reference numerals: 1. Main cable; 2. Branch cable; 3. Left component; 4. Right component; 5. Clip; 6. End stud; 7. End nut; 8. T-slot; 9. Left sheath; 10. Sealing gasket. Detailed Implementation

[0013] The following will provide a more detailed description of a single-core branch cable technical solution related to this utility model, with reference to specific embodiments.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] As shown in Figures 1, 2, and 3, a single-core branch cable of this embodiment includes a main cable 1, a branch cable 2, a connector, and a branch sheath. The connector includes a detachably connected left component 3 and a right component 4, and a snap-fit ​​component 5 that snaps onto one end of the left component 3 and the right component 4 after closure. When closed, the left component 3 and the right component 4 form a first through hole for housing the main cable 1, and the snap-fit ​​component 5 has a second through hole for housing the branch cable 2. When closed, the left component 3 and the right component 4 form an end stud 6, and the rear end of the snap-fit ​​component 5 has a through hole for the end stud 6 to pass through. An end nut 7 is threaded onto the end stud 6. Both the left component 3 and the right component 4 have a snap-fit ​​protrusion at the end where they snap onto the snap-fit ​​component 5, and the snap-fit ​​component 5 has a T-slot 8 for snapping onto the snap-fit ​​protrusion. The left component 3 and the right component 4 intersect at the other end of the corresponding latching protrusion. The left component 3 and the right component 4 are detachably connected near the latching protrusion by component bolts. The branch sheath includes a detachably connected left sheath 9 and a right sheath (not shown in the figure). A groove for embedding the connector and the latching component 5 is provided between the left sheath 9 and the right sheath, as well as an entry hole for the main cable 1 and an exit hole for the branch cable 2. A sealing gasket 10 is provided on the mating surface of the left sheath 9 and the right sheath. A circumferential metal clamp is provided on the left sheath 9 and the right sheath corresponding to the entry hole and the exit hole. Both the connector and the latching component 5 are made of copper. In use, first close and install the left component 3 and right component 4 outside the main cable 1, so that the main cable 1 is located in the first through hole. Then, snap the snap-fit ​​part 5 into one end of the closed left component 3 and right component 4. The branch cable 2 is installed on the snap-fit ​​part 5. After the snap-fit ​​part 5 is installed in place, let the end stud 6 formed by the closed left component 3 and right component 4 pass through the through hole of the snap-fit ​​part 5. Then install the end nut 7 on the end stud 6. When the branch cable 2 needs to be disassembled and assembled separately in the future, the branch cable 2 and the snap-fit ​​part 5 can be removed directly without completely removing the connector.This structure uses a connector consisting of a left component 3 and a right component 4, which together with a snap-fit ​​component 5 form a combined structure. After snapping, they are fixed with end studs 6, achieving a separate and detachable connection between the main cable 1 and the branch cable 2. During later maintenance, the snap-fit ​​component 5 and the branch cable 2 can be disassembled and installed separately without damaging the connection structure of the main cable 1. At the same time, after the left component 3 and the right component 4 are closed, they are snapped with the snap-fit ​​component 5, and the end studs 6 pass through the through hole. This avoids the problem of increased resistance and localized heating caused by the increased gap between the left component 3 and the right component 4 and the main cable 1 due to long-term use, which reduces the conductive contact area with the main cable 1.

[0016] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge or conventional technology in the field. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-core branch cable, comprising a main cable, a branch cable, a connector, and a branch sheath; characterized in that: The connector includes a detachably connected left component and a right component, and a snap-fit ​​component that snaps onto one end of the left and right components after they are closed. When the left and right components are closed, a first through hole is formed for fitting the main cable. The snap-fit ​​component has a second through hole for fitting the branch cable. When the left and right components are closed, an end stud is formed. The rear end of the snap-fit ​​component has a through hole for the end stud to pass through. An end nut is threaded onto the end stud.

2. A single-core drop cable according to claim 1, characterized in that: Both the left and right components have a locking protrusion at one end that engages with the locking member, and the locking member has a T-slot for engaging the locking protrusion.

3. A single core distribution cable according to claim 2, characterised in that: The left and right components meet at the other end of the corresponding latching protrusion, and the left and right components are detachably connected on the side near the latching protrusion by component bolts.

4. A single-core drop cable according to claim 1, characterized in that: The branch sheath includes a detachably connected left sheath and a right sheath. A groove for embedding the connector and snap-fit ​​is provided between the left and right sheaths, as well as an inlet hole for the main cable to enter and an outlet hole for the branch cable to enter. Sealing gaskets are provided on the mating surfaces of the left and right sheaths. Circumferential metal clamps are provided on the left and right sheaths corresponding to the inlet hole and outlet hole.

5. A single core drop cable according to claim 1, characterized in that: Both the connector and the snap-fit ​​are made of copper.

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