Medium-voltage cable with drawing head

Abstract

The utility model discloses a medium-voltage cable with a drawing head. The medium-voltage cable comprises a cable body; the traction cover sleeves the outer side of the end part of the cable body, the traction cover is used for connecting the end part integration of the cable body, and one end, far away from the cable body, of the traction cover is provided with a connecting part; the fixing assembly is arranged at the joint of the cable body and the traction cover, the fixing assembly comprises a clamping part arranged on the outer side of the cable body, and a plurality of mortise lock parts used for limiting the clamping part are arranged on the outer side of the traction cover in a surrounding mode; according to the utility model, the traction cover end connecting part is connected with the traction device, and the insertion part of the cable body and the traction cover is matched and locked with the clamping part through the mortise lock part, so that the cable body and the traction cover are fixed, and compared with the mode that the traction cover is directly bonded and fixed with the cable body through glue, the design is convenient for fixing the cable body after traction is completed. The traction cover and the cable body are rapidly separated, and the situation that the traction cover is time-consuming to detach and separate under the glue bonding condition is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medium-voltage cable traction head technology, and particularly to medium-voltage cables with traction heads. Background Technology

[0002] In the fields of power engineering and communications, the laying and maintenance of medium-voltage cables is an important task. During the laying process, the cable is pulled and moved using the traction head at the end of the medium-voltage cable.

[0003] However, traditional medium-voltage cables usually use glue to fix the traction cover to the cable body. Although this method can connect the cable and the traction cover, it becomes very difficult to separate the traction cover from the cable body after traction is completed. It requires a lot of time and labor to disassemble, which affects the recycling of the traction cover.

[0004] Therefore, in order to solve this problem, this utility model proposes a novel design scheme for a medium-voltage cable with a traction head. Utility Model Content

[0005] The purpose of this invention is to provide a medium-voltage cable with a traction head to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a medium-voltage cable with a traction head, comprising:

[0007] Cable body;

[0008] A traction cover is fitted onto the outer side of the end of the cable body. The traction cover is used to connect the end of the cable body. The end of the traction cover away from the cable body is provided with a connecting part for connecting a traction device.

[0009] A fixing component is provided at the connection between the cable body and the traction cover. The fixing component is used to fix the position of the cable body and the traction cover. The fixing component includes a snap-fit ​​part provided on the outside of the cable body. The outside of the traction cover is surrounded by a plurality of locking parts for limiting the snap-fit ​​part.

[0010] Preferably, the snap-fit ​​portion includes:

[0011] A fastening sleeve is fitted onto the outer side of the end of the cable body, and the end of the fastening sleeve is inserted into the inner cavity of the traction cover.

[0012] A positioning element is disposed on the outside of the fastening sleeve, and the positioning element is used to restrict the rotation of the fastening sleeve and the traction cover;

[0013] Multiple fastening grooves are provided on the outside of the fastening sleeve, and the fastening grooves are used for the insertion of the locking part.

[0014] Preferably, the positioning element includes a plurality of positioning protrusions disposed on the outside of the fastening sleeve, the sides of which are inserted and connected to the inner wall of the traction cover.

[0015] Preferably, the locking part includes:

[0016] Multiple locking sleeves are arranged around the outside of the traction cover;

[0017] Rotate the bolt, the end of which is sequentially inserted and connected to the inner wall of the locking sleeve, the side of the traction cover, and the fastening ring groove;

[0018] A rotating component is provided on the outside of the rotating bolt and located at the intersection of the rotating bolt and the locking sleeve. The rotating component is used to fix the position of the rotating bolt and the locking sleeve.

[0019] A spring-loaded component is provided at the intersection of the rotating bolt and the traction cover, and the spring-loaded component is used to prevent the rotating component from loosening.

[0020] Preferably, the rotating member includes:

[0021] The locking blocks are symmetrically arranged on the outside of the rotating bolt;

[0022] A rotating groove is provided on the inner wall of the locking sleeve, and the rotating groove is used for limiting and locking the locking block;

[0023] An entry groove is formed on the inner wall of a rotating groove, and the entry groove is used for inserting a locking block into the rotating groove.

[0024] Preferably, the springback element includes:

[0025] A pressure ring, which is sleeved on the outside of the rotating bolt and located at the intersection of the rotating bolt and the traction cover;

[0026] A compression spring is sleeved on the outside of the rotating bolt and is located on the side of the pressure ring near the fastening sleeve.

[0027] Preferably, the connecting part includes a traction rod, one end of which is threadedly connected to the end of the traction cover, and the other end of which is configured as a ring for mounting the traction device.

[0028] The technical effects and advantages of this utility model are as follows:

[0029] This invention features a traction cover fitted onto the end of the cable body. The traction cover is connected to the traction device via a connecting part at its end. The insertion point between the cable body and the traction cover is locked by a locking part and a snap-fit ​​part, thereby fixing the cable body and the traction cover. Compared to directly bonding the traction cover to the cable body with glue, this design facilitates quick separation of the traction cover from the cable body after traction is completed, avoiding the time-consuming disassembly and removal of the traction cover in the case of glue bonding. Attached Figure Description

[0030] Figure 1 This is one of the overall structural schematic diagrams of this utility model.

[0031] Figure 2 The second schematic diagram shows the overall structure of this utility model.

[0032] Figure 3 This is a partial cross-sectional view of the entire utility model.

[0033] Figure 4 This is a longitudinal sectional view of the entire utility model.

[0034] Figure 5 This utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0035] Figure 6 This is a schematic diagram of the rotating bolt of this utility model.

[0036] Figure 7 This is a schematic diagram of the structure of the locking sleeve of this utility model.

[0037] In the diagram: 1. Cable body; 2. Traction cover; 3. Traction rod; 4. Locking sleeve; 401. Rotating groove; 4011. Entering groove; 5. Rotating bolt; 501. Clamping block; 502. Pressure ring; 503. Compression spring; 6. Fastening sleeve; 601. Fastening ring groove; 602. Positioning protrusion. Detailed Implementation

[0038] 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.

[0039] This utility model provides, for example Figure 1-7 As shown:

[0040] Example 1,

[0041] A medium-voltage cable with a traction head includes: a cable body 1, a traction cover 2, and a fixing assembly;

[0042] Specifically, the traction cover 2 is sleeved on the outer side of the end of the cable body 1, and the fixing component is set at the connection between the cable body 1 and the traction cover 2;

[0043] It should be noted that the traction cover 2 is used to connect the end of the cable body 1. The end of the traction cover 2 away from the cable body 1 is provided with a connecting part for connecting the traction device. The fixing component is used to fix the position of the cable body 1 and the traction cover 2.

[0044] Specifically, the traction cover 2 is made of copper alloy, and the fixing components include a snap-fit ​​part set on the outside of the cable body 1. Multiple sets of locking parts for limiting the snap-fit ​​part are arranged around the outside of the traction cover 2.

[0045] The snap-fit ​​part includes: a fastening sleeve 6, a positioning element and multiple fastening ring grooves 601;

[0046] Specifically, the fastening sleeve 6 is sleeved on the outer side of the end of the cable body 1, the end of the fastening sleeve 6 is inserted into the inner cavity of the traction cover 2, the positioning element is set on the outer side of the fastening sleeve 6, and multiple fastening ring grooves 601 are set on the outer side of the fastening sleeve 6.

[0047] It should be noted that the fastening sleeve 6 is made of copper alloy and is fixed to the cable body 1 by extrusion, so that the deformed fastening sleeve 6 is in close contact with the cable body 1. The positioning part is used to limit the rotation of the fastening sleeve 6 and the traction cover 2, and the fastening ring groove 601 is used for the insertion of the locking part.

[0048] Specifically, the positioning component includes multiple positioning protrusions 602 disposed on the outside of the fastening sleeve 6, and the sides of the positioning protrusions 602 are inserted and connected to the inner wall of the traction cover 2.

[0049] It should be noted that there are 4 positioning protrusions 602. The positioning protrusions 602 and the fastening sleeve 6 are integrally cast. The inner wall of the traction cover 2 is provided with a strip groove for the positioning protrusions 602 to pass through.

[0050] The locking mechanism includes multiple locking sleeves 4, rotating bolts 5, rotating parts, and spring-loaded parts;

[0051] Specifically, multiple locking sleeves 4 are arranged around the outside of the traction cover 2, and the end of the rotating bolt 5 is sequentially inserted and connected to the inner wall of the locking sleeve 4, the side of the traction cover 2 and the fastening ring groove 601. The rotating part is arranged outside the rotating bolt 5 and located at the intersection of the rotating bolt 5 and the locking sleeve 4. The spring-loaded part is arranged at the intersection of the rotating bolt 5 and the traction cover 2.

[0052] It should be noted that the locking sleeve 4 and the traction cover 2 are fixed by welding. The rotating part is used to fix the position of the rotating bolt 5 and the locking sleeve 4, and the spring-loaded part is used to prevent the rotating part from loosening.

[0053] Specifically, the rotating component includes: a locking block 501, a rotating groove 401, and an entry groove 4011;

[0054] It should be noted that the locking block 501 is symmetrically arranged on the outside of the rotating bolt 5, the rotating groove 401 is arranged on the inner wall of the locking sleeve 4, and the inlet groove 4011 is opened on the inner wall of the rotating groove 401.

[0055] Specifically, the locking block 501 is welded and fixed to the rotating bolt 5, the rotating groove 401 is used for limiting and locking the locking block 501, and the entry groove 4011 is used for the locking block 501 to insert into the rotating groove 401.

[0056] It should be noted that when the user inserts the rotating bolt 5, the locking block 501 is aligned and inserted into the entry groove 4011. Then, the rotating bolt 5 is rotated, causing the locking block 501 to disengage from the entry groove 4011 and enter the rotating groove 401, thereby fixing the rotating bolt 5.

[0057] Example 2,

[0058] A spring-loaded component and a connecting part are applied to the medium-voltage cable with a traction head in Embodiment 1;

[0059] Specifically, the springback components include: pressure ring 502 and compression spring 503;

[0060] It should be noted that the pressure ring 502 is sleeved on the outside of the rotating bolt 5 and located at the intersection of the rotating bolt 5 and the traction cover 2, and the compression spring 503 is sleeved on the outside of the rotating bolt 5 and is located on the side of the pressure ring 502 close to the fastening sleeve 6.

[0061] Specifically, the pressure ring 502 and the rotating bolt 5 are glued together and fixed. The compression spring 503 pushes the locking block 501 through the pressure ring 502 to prevent the rotating bolt 5 from rotating and loosening.

[0062] It should be noted that the connecting part includes a traction rod 3. One end of the traction rod 3 is threadedly connected to the end of the traction cover 2, and the other end of the traction rod 3 is set as a ring. The ring is used for mounting the traction device. The end of the traction cover 2 is provided with a threaded hole for the traction rod 3 to pass through.

[0063] In actual use, a traction cover 2 is fitted onto the end of the cable body 1, and the connecting part at the end of the traction cover 2 is connected to the traction device. The insertion point of the cable body 1 and the traction cover 2 is locked by the locking part and the snap-fit ​​part, thereby fixing the cable body 1 and the traction cover 2. Compared with the traction cover 2 being directly glued to the cable body 1, this design makes it easier for the traction cover 2 to be quickly separated from the cable body 1 after traction is completed, avoiding the time-consuming situation of disassembling and removing the traction cover 2 under the condition of glue bonding.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medium-voltage cable with a traction head, characterized in that, include: Cable body (1); The traction cover (2) is sleeved on the outside of the end of the cable body (1). The traction cover (2) is used to connect the end of the cable body (1). The end of the traction cover (2) away from the cable body (1) is provided with a connecting part for connecting the traction device. The fixing component is located at the connection between the cable body (1) and the traction cover (2). The fixing component is used to fix the positions of the cable body (1) and the traction cover (2). The fixing component includes a snap-fit ​​part located on the outside of the cable body (1). The outside of the traction cover (2) is surrounded by multiple sets of locking parts for limiting the snap-fit ​​part.

2. The medium-voltage cable with a traction head according to claim 1, characterized in that, The snap-fit ​​portion includes: Fastening sleeve (6), the fastening sleeve (6) is sleeved on the outside of the end of the cable body (1), and the end of the fastening sleeve (6) is inserted into the inner cavity of the traction cover (2); A positioning element is provided on the outside of the fastening sleeve (6), and the positioning element is used to restrict the rotation of the fastening sleeve (6) and the traction cover (2); Multiple fastening ring grooves (601) are provided on the outside of the fastening sleeve (6), and the fastening ring grooves (601) are used for the insertion of the locking part.

3. The medium-voltage cable with a traction head according to claim 2, characterized in that, The positioning element includes a plurality of positioning protrusions (602) disposed on the outside of the fastening sleeve (6), and the side of the positioning protrusions (602) is inserted and connected to the inner wall of the traction cover (2).

4. The medium-voltage cable with a traction head according to claim 2, characterized in that, The locking part includes: Multiple locking sleeves (4) are arranged around the outside of the traction cover (2); Rotate the bolt (5), the end of which is sequentially inserted into the inner wall of the locking sleeve (4), the side of the traction cover (2), and the fastening ring groove (601); A rotating component is provided on the outside of the rotating bolt (5) and located at the intersection of the rotating bolt (5) and the locking sleeve (4). The rotating component is used to fix the position of the rotating bolt (5) and the locking sleeve (4). The spring is located at the intersection of the rotating bolt (5) and the traction cover (2) and is used to prevent the rotating part from loosening.

5. The medium-voltage cable with a traction head according to claim 4, characterized in that, The rotating component includes: A locking block (501) is symmetrically arranged on the outside of the rotating bolt (5); Rotating groove (401), the rotating groove (401) is provided on the inner wall of the locking sleeve (4), the rotating groove (401) is used for limiting and locking the locking block (501); An entry groove (4011) is formed on the inner wall of a rotating groove (401), and the entry groove (4011) is used for inserting a locking block (501) into the rotating groove (401).

6. The medium-voltage cable with a traction head according to claim 4, characterized in that, The springback component includes: A pressure ring (502) is sleeved on the outside of the rotating bolt (5) and located at the intersection of the rotating bolt (5) and the traction cover (2); Compression spring (503) is sleeved on the outside of rotating bolt (5) and is located on the side of pressure ring (502) near fastening sleeve (6).

7. The medium-voltage cable with a traction head according to claim 1, characterized in that, The connecting part includes a traction rod (3), one end of which is threadedly connected to the end of the traction cover (2), and the other end of the traction rod (3) is set as a ring, which is used for mounting the traction device.

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