Power cable protection pipe connection structure

Abstract

The utility model relates to a power cable protection pipe connecting structure, which comprises an inner sheath, two groups of outer sheaths and a locking ring, the inner sheath is sleeved outside the connecting ends of two cables, the two groups of outer sheaths are respectively independent and detachably fixed outside the inner sheath, the two groups of outer sheaths respectively clamp the two cables, and the locking ring is fixed on the outer side of the inner sheath. The ends, facing the locking ring, of the two sets of outer sheaths are connected with the locking ring in a combined mode, so that the locking ring limits the position states of the two sets of outer sheaths. Through the cooperative arrangement of the inner sheath, the two groups of outer sheaths and the locking rings, after the two cables are connected, the locking cooperation between the outer sheaths and the locking rings and the clamping cooperation between the outer sheaths and the cables can be utilized to reduce the loosening and falling of the two cables caused by the pulling of an external force, and the stability of the connection and use between the two cables is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable connection protection, in particular to a power cable protection pipe connection structure. Background Art

[0002] Power cables are the carriers of electric energy. During construction, when it is necessary to connect two cable ends, a common practice is to peel off the outer sheaths of the connecting ends of the two cables, then use hands or pliers to wrap the connecting ends of the two cables together, and then use insulating tape to wrap the connection.

[0003] The common cable connection method mentioned above may cause the connection and winding parts of the two cables to loosen or fall off due to external force pulling on the cables. The common protection method of tying insulating tape on the connection and winding parts of the two cables has weak protection for the cable connection. For this reason, we propose a power cable protection tube connection structure to solve the above problem. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The utility model provides a power cable protection pipe connection structure, which solves the problem that the connection and winding parts of two cables become loose or fall off due to the cables being pulled by external force.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a power cable protection tube connection structure, comprising an inner sheath, two groups of outer sheaths and a locking ring, wherein the inner sheath is arranged on the outside of the connection ends of the two cables, the two groups of outer sheaths are independently and detachably fixed on the outside of the inner sheath, and the two groups of outer sheaths clamp the two cables respectively, and the two groups of outer sheaths are combined and connected to the locking rings at one end facing the locking ring, so that the locking ring limits the position state of the two groups of outer sheaths.

[0008] Preferably, the outer sheath comprises two sets of sleeves, bolts and nuts, the two sleeves are symmetrically arranged on opposite sides of the inner sheath, and the facing sides of the two sleeves are in close contact with each other, the bolts pass through the two sleeves and are threadedly connected with the nuts, so that the two sleeves are clamped on the outside of the inner sheath and the cable.

[0009] It is further preferred that the sleeve body includes a covering portion, an extended connecting portion, a socket and a combined connecting portion, the covering portion is configured to be a semicircular arc shape, the extended connecting portion and the combined connecting portion are respectively formed at two ends of the covering portion, the socket is formed in the middle of the extended connecting portion and passes through the extended connecting portion, one end of the bolt can pass through the socket, the combined connecting portion is configured to be a quarter cylinder, and a thread is provided on the outer wall of the combined connecting portion, the four combined connecting portions in the two groups of the outer sheaths form a cylinder, and the outer walls of the four combined connecting portions together form a continuous threaded structure.

[0010] In a further embodiment, the locking ring is provided with an internal thread on its inner wall which matches with the combined connecting part.

[0011] In a further embodiment, the inner sheath is configured as an elastic rubber sheath, and the inner diameter of the inner sheath is adapted to the outer diameter of the cable.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a power cable protection pipe connection structure, which has the following beneficial effects:

[0014] In the utility model, through the coordinated arrangement of the inner sheath, two sets of outer sheaths and the locking ring, after the two cables are connected, the locking cooperation between the outer sheath and the locking ring, as well as the clamping cooperation between the outer sheath and the cable can be utilized to reduce the loosening and falling off of the two cables caused by external force pulling, thereby improving the stability of the connection between the two cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the power cable protection pipe connection structure according to the implementation scheme when used in conjunction with the cable;

[0016] Figure 2 for Figure 1 Structural schematic diagram of the connection structure of the power cable protection pipe;

[0017] Figure 3 Schematic diagram of the exploded structure of the outer sheath according to the embodiment.

[0018] In the figure: 10, inner sheath; 20, outer sheath; 21, casing; 211, covering portion; 212, extension connection portion; 213, jack; 214, combined connection portion; 22, bolt; 23, nut; 30, locking ring; 40, cable. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 and Figure 2 , a power cable protection pipe connection structure, comprising an inner sheath 10, two sets of outer sheaths 20 and a locking ring 30. Before using the device, the connection ends of the two cables 40 can be pre-stripped to expose the conductive inner core, and the conductive inner cores of the two cables can be twisted and connected together, and then the inner sheath 10 is sleeved on the outside of the connection ends of the two cables 40 and covers the conductive inner core and part of the outer sheath of the cables 40. The two sets of outer sheaths 20 are each independently and detachably fixed on the outside of the inner sheath 10, and the two sets of outer sheaths 20 are respectively clamped on the outside of the two cables 40. The two groups of outer sheaths 20 are combined and fixed to one end of the locking ring 30, so that the locking ring 30 can limit the position state of the two groups of outer sheaths 20, so that the locking ring 30 can be used to prevent the movement of the outer sheath 20 when the cable 40 is pulled, and the clamping connection of the outer sheath 20 on the outside of the cable 40 makes it difficult for the connection ends of the two cables 40 to be pulled loose or fall off.

[0021] In this embodiment, the inner sheath 10 may be an elastic rubber sheath, and the inner diameter of the inner sheath 10 is adapted to the outer diameter of the cable 40 , so that the inner sheath can wrap tightly around the outer side of the connection between the two cables 40 by virtue of its deformation.

[0022] See also Figure 3 The outer sheath 20 includes two sets of sleeves 21, bolts 22 and nuts 23. The two sleeves 21 are symmetrically arranged on opposite sides of the inner sheath 10, and the facing sides of the two sleeves 21 are in contact with each other, so that the two sleeves 21 can be clamped outside the cable 40 and the inner sheath 10. The bolt 22 passes through the two sleeves 21 and is threadedly connected with the nut 23, so that the two sleeves 21 can be connected and fixed, and the two sleeves 21 are clamped on the outer sides of the inner sheath 10 and the cable 40.

[0023] In this embodiment, the sleeve 21 includes a covering portion 211, an extension connection portion 212, a socket 213 and a combined connection portion 214. The covering portion 211 is configured to be semicircular; the extension connection portion 212 and the combined connection portion 214 are formed at both ends of the covering portion 211 respectively. The socket 213 is formed in the middle of the extension connection portion 212 and penetrates the extension connection portion 212, so that one end of the bolt 22 can pass through the socket 213 and connect with the nut 23. The combined connection portion 214 is configured to be a quarter cylinder, so that the four combined connection portions 214 in the two groups of outer sheaths 20 can be combined to form a cylindrical shape; the outer wall of the combined connection portion 214 is provided with a thread, and the outer walls of the four combined connection portions 214 together form a continuous thread structure, so that the locking ring 30 with an internal thread on the inner wall that matches the combined connection portion 214 can be screwed into the outer side of the four combined connection portions 214 to complete the connection.

[0024] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A power cable protection pipe connection structure, characterized in that: The invention comprises an inner sheath (10), two groups of outer sheaths (20) and a locking ring (30), wherein the inner sheath (10) is sleeved on the outer side of the connection ends of two cables (40), the two groups of outer sheaths (20) are independently and detachably fixed on the outer side of the inner sheath (10), and the two groups of outer sheaths (20) clamp the two cables (40) respectively, and the ends of the two groups of outer sheaths (20) facing the locking ring (30) are combined and connected to the locking ring (30), so that the locking ring (30) limits the position state of the two groups of outer sheaths (20).

2. The power cable protection pipe connection structure according to claim 1, characterized in that: The outer sheath (20) comprises two sets of sheaths (21), bolts (22) and nuts (23), the two sheaths (21) are symmetrically arranged on opposite sides of the inner sheath (10), and the facing sides of the two sheaths (21) are in close contact with each other, the bolts (22) pass through the two sheaths (21) and are threadedly connected with the nuts (23), so that the two sheaths (21) are clamped and arranged on the outer sides of the inner sheath (10) and the cable (40).

3. A power cable protection pipe connection structure according to claim 2, characterized in that: The sleeve body (21) comprises a covering portion (211), an extended connection portion (212), a plug hole (213) and a combined connection portion (214); the covering portion (211) is arranged in a semicircular arc shape; the extended connection portion (212) and the combined connection portion (214) are respectively formed at two ends of the covering portion (211); the plug hole (213) is formed in the middle of the extended connection portion (212) and passes through the extended connection portion (212); one end of the bolt (22) can pass through the plug hole (213); the combined connection portion (214) is arranged in a quarter-cylindrical shape, and a thread is arranged on the outer wall of the combined connection portion (214).

4. A power cable protection pipe connection structure according to claim 3, characterized in that: The four combined connection parts (214) in the two groups of outer sheaths (20) form a cylindrical shape, and the outer walls of the four combined connection parts (214) together form a continuous thread structure.

5. A power cable protection pipe connection structure according to claim 4, characterized in that: An internal thread matching the combined connection portion (214) is provided on the inner wall of the locking ring (30).

6. The power cable protection pipe connection structure according to claim 1, characterized in that: The inner sheath (10) is configured as an elastic rubber sheath, and the inner diameter of the inner sheath (10) is adapted to the outer diameter of the cable (40).

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