Threading device for electrical construction

Abstract

The utility model relates to a threading device for electrical construction, which comprises a wire belt, one end of the wire belt is wound and bound on a cable, the wire belt is used for pulling the cable to pass through a wire pipe, the threading device for electrical construction further comprises a cable connecting unit and a wire belt connecting unit, the cable connecting unit comprises a cable sleeve and a clamping sleeve, and the clamping sleeve is used for clamping the cable sleeve. The cable sleeve is sleeved at the joint of the cable and the cable tape, and the jacket is sleeved at the outer side of the cable sleeve and is in threaded connection with the cable sleeve. Through the arrangement of the cable connecting unit, when a constructor pulls a cable to penetrate through the cable through a preset cable belt in the cable pipe, the binding connecting position of the cable belt and the cable can be clamped, so that the separation and falling of the cable belt and the cable in the threading process are reduced, and in addition, through the arrangement of the cable belt connecting unit, when the constructor pulls the cable belt, the binding connecting position of the cable belt and the cable can be clamped. Separation of the cable and the cable tape caused by small friction force between the cable and the cable tape when the cable tape is used for directly pulling the cable for threading is avoided.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a wiring device for electrical construction. Background Technology

[0002] In the field of electrical construction, cable pulling is a common and important operation, which mainly involves passing cables through conduits pre-installed in building structures such as walls, floors, or ceilings to lay and connect electrical circuits. Currently, the traditional method of cable pulling usually involves construction workers using a cable tie pre-installed in the conduit to bind one end of the cable. Then, by pulling the other end of the cable tie, the construction worker moves the cable inside the conduit, thus completing the cable pulling work, thanks to the connection between the cable tie and the cable.

[0003] However, in actual construction, the existing wiring methods have many shortcomings: when construction workers bind the cable to the cable sling, it is difficult to ensure the connection is secure. When pulling the cable sling to pull the cable through, the binding connection between the cable and the cable is very prone to separation and detachment, resulting in wiring failure and requiring construction workers to repeat the wiring operation. This not only increases the labor intensity of construction workers, but also seriously affects construction efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a wiring device for electrical construction, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wiring device for electrical construction, comprising a cable sling, one end of which is wrapped and bound around a cable. The cable sling is used to pull the cable through a conduit. The wiring device for electrical construction also includes a cable connection unit and a cable sling connection unit. The cable connection unit includes a cable sleeve and a clamp. The cable sleeve is fitted at the connection between the cable and the cable sling. The clamp is fitted on the outside of the cable sleeve and threadedly connected to it. The clamp can adjust the clamping state of the cable sleeve on the cable by screwing the clamp in or out along the axial direction of the cable sleeve. The cable sling connection unit includes a cable sling sleeve, one end of which is fixedly connected to the adjacent end of the clamp. The inner cavity of the cable sling sleeve communicates with the inner cavity of the cable sleeve. The cable sling passes through the inner cavity of the cable sling sleeve and is partially wrapped around the outside of the cable sling sleeve.

[0008] Preferably, the cable sleeve includes an annular disc, a threaded section, an extension section, and a tapered section. One end of the threaded section is fixedly connected to the annular disc, and the other end of the threaded section is fixedly connected to the extension section. The tapered section is formed on the end of the extension section facing away from the threaded section. The inner cavities of the annular disc, the threaded section, the extension section, and the tapered section are interconnected. Multiple slots are formed on the end of the extension section, the tapered section, and the threaded section near the extension section. The diameter of the end face of the tapered section facing away from the extension section is smaller than the diameter of the end face of the extension section. The cable sleeve is made of plastic.

[0009] In a further preferred embodiment, the inner wall of the jacket near the cable sleeve is provided with an internal thread area, and the inner wall of the jacket near the cable connection unit is provided with an inner conical area, the shape of which is adapted to the external shape of the conical section.

[0010] In a further preferred embodiment, the cable sleeve includes a base tube, two limiting rings, and several separating rings. Limiting rings are formed at both ends of the base tube. The limiting rings near the jacket are fixedly connected to the jacket. Several separating rings are formed at intervals on the outer wall of the base tube, and the cable is wound in the gaps between the several separating rings.

[0011] In a further preferred embodiment, the wire connection unit further includes an elastic rubber sleeve, which is sleeved on the outside of a plurality of separating rings and is positioned between two limiting rings.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a wiring device for electrical construction, which has the following advantages:

[0014] In this invention, the cable connection unit allows construction workers to clamp the cable and the cable at the binding point when pulling the cable through the conduit using a pre-installed cable strap, thus reducing the separation of the cable strap and the cable during threading. Furthermore, the cable strap connection unit increases the friction between the cable strap and the connection unit when the worker pulls the cable strap, assisting in pulling the cable connection unit and the cable through the conduit and preventing separation of the cable and cable strap due to insufficient friction when directly pulling the cable through the conduit. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a wiring device used for electrical construction, according to the implementation plan;

[0016] Figure 2 for Figure 1 A schematic diagram of the cut-out structure of a wiring device used in electrical construction.

[0017] Figure 3 for Figure 1 An exploded view of a wiring device used in electrical construction.

[0018] In the diagram: 10. Cable connection unit; 11. Cable sleeve; 111. Ring disc; 112. Threaded section; 113. Extension section; 114. Tapered section; 115. Slotted section; 12. Jacket; 121. Internal threaded area; 122. Internal tapered area; 20. Cable strip connection unit; 21. Cable strip sleeve; 211. Base tube; 212. Limiting ring; 213. Separating ring; 22. Elastic rubber sleeve. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 3 A wiring device for electrical construction includes a cable connection unit 10 and a cable tape connection unit 20, which are used in conjunction with cable tape traditionally installed in conduits. That is, during wiring, in addition to wrapping one end of the cable tape around the cable as in the traditional method (the cable tape is used to pull the cable through the conduit), the cable connection unit 10 and the cable tape connection unit 20 are also fitted onto the connection point between the cable and the cable tape for coordinated use.

[0021] In this embodiment, the cable connection unit 10 includes a cable sleeve 11 and a clamp 12. The cable sleeve 11 is fitted onto the connection between the cable and the cable sling, and the clamp 12 is fitted onto the outside of the cable sleeve 11 and threadedly connected to it. When the clamp 12 is screwed in or out along the axial direction of the cable sleeve 11, the clamping state of the cable sleeve 11 on the cable can be adjusted by the change in the pressure exerted on the cable sleeve 11 by the movement of the clamp 12. The cable connection unit 10 allows construction workers to clamp the connection between the cable sling and the cable when pulling the cable through the pre-installed cable sling, thereby reducing the separation and detachment of the cable sling and the cable during threading.

[0022] In this embodiment, the cable sleeve 11 includes an annular disc 111, a threaded section 112, an extension section 113, and a tapered section 114. One end of the threaded section 112 is fixedly connected to the annular disc 111, and the other end of the threaded section 112 is fixedly connected to the extension section 113. The tapered section 114 is formed on the end of the extension section 113 facing away from the threaded section 112. The inner cavities of the annular disc 111, the threaded section 112, the extension section 113, and the tapered section 114 are interconnected, allowing the cable to pass through. Multiple slots 115 are formed on the end of the extension section 113, the tapered section 114, and the threaded section 112 near the extension section 113. The cable sleeve 11 is entirely made of plastic, allowing the tapered section 114 of the cable sleeve 11 to deform under pressure. The diameter of the end face of the tapered section 114 facing away from the extension section 113 is smaller than the diameter of the end face of the extension section 113, and when it is squeezed, the tapered section 114 can clamp the connection of the cable and the cable tie.

[0023] In this embodiment, an internal threaded area 121 is provided on the inner wall of the end of the jacket 12 near the cable sleeve 11, and an inner tapered area 122 is provided on the inner wall of the end of the jacket 12 near the cable tape connecting unit 20. The internal threaded area 121 is used to mate with the threaded section 112, and the shape of the inner tapered area 122 is adapted to the external shape of the tapered section 114 so that the compression state of the jacket 12 on the tapered section 114 can be adjusted when the jacket 12 moves axially.

[0024] In this embodiment, the cable tie connecting unit 20 may include a cable tie sleeve 21 and an elastic rubber sleeve 22. One end of the cable tie sleeve 21 is fixedly connected to the adjacent end of the clamp 12, and the inner cavity of the cable tie sleeve 21 communicates with the inner cavity of the cable sleeve 11, so that after the cable tie passes through the inner cavity of the cable tie sleeve 21, it can be partially wrapped around the outside of the cable tie sleeve 21 to increase the friction when pulling the cable tie through. The elastic rubber sleeve 22 can be fitted over the outside of the cable tie sleeve 21 and is used to wrap the cable tie wrapped around the outside of the cable tie sleeve 21.

[0025] In this embodiment, the cable sheath 21 includes a base tube 211, two limiting rings 212, and several separating rings 213. Limiting rings 212 are formed at both ends of the base tube 211, and the limiting rings 212 near the jacket 12 are fixedly connected to the jacket 12. Several separating rings 213 are formed at intervals on the outer wall of the base tube 211, and the cable is wrapped along the gaps between the separating rings 213 during cable winding. Then, an elastic rubber sleeve 22 can be fitted over the outside of the separating rings 213, so that the elastic rubber sleeve 22 is positioned between the two limiting rings 212 to wrap the cable. When the construction worker pulls the cable, the cable connecting unit 20 can be used to increase the friction between the cable and the cable connecting unit 20, assisting in driving the cable connecting unit 10 and the cable through the conduit, avoiding separation of the cable and cable due to the low friction between them when directly pulling the cable through the conduit.

[0026] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wiring device for electrical construction, comprising a cable strap, one end of which is wrapped and tied around a cable, the cable strap being used to pull the cable through a conduit, characterized in that, It also includes a cable connection unit (10) and a ribbon cable connection unit (20). The cable connection unit (10) includes a cable sleeve (11) and a clamp (12). The cable sleeve (11) is fitted at the connection between the cable and the cable tape. The clamp (12) is fitted on the outside of the cable sleeve (11) and threadedly connected to it. The clamp (12) can adjust the clamping state of the cable sleeve (11) on the cable by screwing in or out along the axial direction of the cable sleeve (11). The cable strip connection unit (20) includes a cable strip sleeve (21), one end of which is fixedly connected to the adjacent end of the clamp (12). The inner cavity of the cable strip sleeve (21) communicates with the inner cavity of the cable sleeve (11). The cable strip passes through the inner cavity of the cable strip sleeve (21) and is partially wrapped around the outside of the cable strip sleeve (21).

2. The wiring device for electrical construction according to claim 1, characterized in that: The cable sleeve (11) includes an annular disc (111), a threaded section (112), an extension section (113), and a tapered section (114). One end of the threaded section (112) is fixedly connected to the annular disc (111), and the other end of the threaded section (112) is fixedly connected to the extension section (113). The tapered section (114) is formed on the end of the extension section (113) facing away from the threaded section (112). The inner cavities of the annular disc (111), the threaded section (112), the extension section (113), and the tapered section (114) are connected. Multiple slots (115) are formed on the end of the extension section (113), the tapered section (114), and the threaded section (112) near the extension section (113).

3. A wiring device for electrical construction according to claim 2, characterized in that: The diameter of the end face of the tapered section (114) facing away from the extension section (113) is smaller than the diameter of the end face of the extension section (113), and the cable sleeve (11) is made of plastic.

4. A wiring device for electrical construction according to any one of claims 1-3, characterized in that: The inner wall of the sleeve (12) near the cable sleeve (11) is provided with an internal thread area (121), and the inner wall of the sleeve (12) near the cable strip connecting unit (20) is provided with an inner conical area (122). The shape of the inner conical area (122) is adapted to the external shape of the conical section (114).

5. A wiring device for electrical construction according to claim 1, characterized in that: The cable sleeve (21) includes a base tube (211), two limiting rings (212) and several separating rings (213). Both ends of the base tube (211) are formed with limiting rings (212). The limiting rings (212) near the jacket (12) are fixedly connected to the jacket (12). Several separating rings (213) are formed at intervals on the outer wall of the base tube (211). The cable is wound in the gap between the several separating rings (213).

6. A wiring device for electrical construction according to claim 5, characterized in that: The wire connection unit (20) also includes an elastic rubber sleeve (22), which is sleeved on the outside of several separating rings (213) and is located between two limiting rings (212).

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