Cable head reinforcing insulation isolation sleeve

Abstract

The utility model relates to the field of power equipment, and discloses a cable head reinforcing insulation isolation sleeve, which comprises a cable, the outer wall of the cable is provided with a fixing mechanism, the fixing mechanism comprises a fixing block A, the inner wall of the fixing block A is elastically connected with a wedge block through a spring, the outer wall of the front end of the fixing block A is fixedly connected with a rubber gasket, and the rubber gasket is fixedly connected with the wedge block. The outer wall of the cable is rotationally connected with a fixing block B, the outer wall of the fixing block B is provided with a clamping groove, the fixing block A is fixedly connected to the outer wall of the side, away from the fixing block B, of the cable, the inner wall of the fixing block B is provided with a sliding groove, and one end of the spring is fixedly connected to the outer wall of the wedge block. According to the utility model, when two groups of cables need to be connected and fixed, the two groups of cables can be fixed through clamping of the wedge blocks and the clamping grooves, the two groups of cables do not need to be connected and fixed by rotating a plurality of groups of bolts, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the field of electric power equipment, in particular to a cable head reinforced insulating isolation sleeve. Background Art

[0002] Power equipment refers to various equipment and instruments used to produce, transmit, distribute and control electric energy, including generators, transformers, switchgear, cables, etc. Insulating sleeves are components used to protect the insulating parts of power equipment and isolate different circuits. They are usually used to cover the insulating parts of cable heads or connectors to prevent circuit short circuits or leakage.

[0003] When two groups of cables need to be connected, the isolation sleeves also need to be fixed. In some existing technologies, the isolation sleeves are generally connected and fixed by multiple groups of bolts. In the process of connecting or disconnecting the two groups of cables, it is necessary to rotate multiple groups of bolts multiple times to fix the isolation sleeves, which is rather cumbersome, time-consuming and labor-intensive. Therefore, a cable head reinforced insulating isolation sleeve is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a cable head reinforced insulating isolation sleeve, aiming to improve the problem of troublesome fixing of the isolation sleeve in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a cable head reinforced insulation isolation sleeve, comprising a cable, wherein the outer wall of the cable is provided with a fixing mechanism;

[0006] The fixing mechanism includes a fixing block A, the inner wall of which is elastically connected to a wedge block via a spring, the front end outer wall of the fixing block A is fixedly connected to a rubber gasket, the outer wall of the cable is rotatably connected to a fixing block B, and the outer wall of the fixing block B is provided with a card slot.

[0007] As a further description of the above technical solution:

[0008] The fixing block A is fixedly connected to an outer wall of a side of the cable away from the fixing block B, and an inner wall of the fixing block B is provided with a sliding groove.

[0009] As a further description of the above technical solution:

[0010] One end of the spring is fixedly connected to the outer wall of the wedge block, and the other end of the spring is fixedly connected to the inner wall of the fixed block A.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the wedge block is slidably connected to the inner wall of the fixed block A, and the wedge block is engaged with the slot.

[0013] As a further description of the above technical solution:

[0014] The fixing block A is in the shape of a ring, and the outer diameter of the fixing block A is the same as the inner diameter of the fixing block B.

[0015] As a further description of the above technical solution:

[0016] The fixed block A comprises a surface layer, the top outer wall of the surface layer is fixedly connected with an insulating layer, the top outer wall of the insulating layer is fixedly connected with a flame retardant layer, and the top outer wall of the flame retardant layer is fixedly connected with a reflective layer.

[0017] As a further description of the above technical solution:

[0018] The material of the surface layer is polyurethane, and the material of the insulating layer is cross-linked polyethylene.

[0019] As a further description of the above technical solution:

[0020] The material of the flame retardant layer is flame retardant polyvinyl chloride, and the material of the reflective layer is polycarbonate.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, when it is necessary to connect and fix two groups of cables, the fixing block A can be inserted into the fixing block B, and the fixing block B can be rotated to fix the two groups of cables by engaging the wedge block with the card slot, so that the two groups of cables can be fixed, which is more convenient and quick, and there is no need to connect and fix the two groups of cables by rotating multiple groups of bolts, saving time and effort.

[0023] 2. In the utility model, by providing the reflective layer, flame retardant layer, insulating layer and surface layer in the fixing mechanism, the protection capability of the cable can be improved, the overall service life of the cable and the fixing mechanism can be increased, and the frequency of replacement due to damage can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a main schematic diagram of a cable head reinforcement insulation isolation sleeve proposed by the utility model;

[0025] Figure 2 This is a cross-section of a fixing block A of a cable head reinforcement insulation isolation sleeve proposed by the utility model, and a schematic diagram of the structure after the fixing block B is exploded;

[0026] Figure 3 This is a structural schematic diagram of a fixing block B of a cable head reinforcing insulating isolation sleeve proposed by the utility model;

[0027] Figure 4The utility model provides a schematic cross-sectional structure diagram of a fixing block A and a fixing block B of a cable head reinforcement insulation isolation sleeve.

[0028] Legend:

[0029] 1. Cable; 2. Fixing mechanism; 201. Fixing block A; 202. Spring; 203. Wedge block; 204. Fixing block B; 205. Slot; 206. Slide; 3. Rubber gasket; 401. Reflective layer; 402. Flame retardant layer; 403. Insulating layer; 404. Surface layer. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1-Figure 3 The utility model provides an embodiment: a cable head reinforced insulating isolation sleeve, including a cable 1, the cable 1 is the cable body, which is the prior art. The outer wall of the cable 1 is provided with a fixing mechanism 2, and the fixing mechanism 2 can be used to fix the two groups of cables 1 when they are connected to prevent them from falling off and affecting normal use.

[0032] Reference Figure 2-Figure 3 The fixing mechanism 2 includes a fixing block A201, which is in a circular ring shape and is fixedly connected to the outer wall of the cable 1 on one side away from the fixing block B204. The fixing block A201 on one group of cables 1 can be inserted into the fixing block B204 on another group of cables 1 to fix the two. The inner wall of the fixing block A201 is elastically connected with a wedge block 203 through a spring 202. Two groups of wedge blocks 203 and springs 202 are provided and are symmetrically distributed on the inner walls on both sides of the fixing block A201.

[0033] Reference Figure 2-Figure 3 One end of the spring 202 is fixedly connected to the outer wall of the wedge block 203, and the other end of the spring 202 is fixedly connected to the inner wall of the fixed block A201. When the two groups of cables 1 are connected, the fixed block A201 can be inserted into the other group of fixed blocks B204, and the arc surface of the wedge block 203 is squeezed, so that the wedge block 203 moves inward along the inner wall of the fixed block A201, and the outer wall of the wedge block 203 is slidably connected with the inner wall of the fixed block A201. When the connection between the fixed block A201 and the fixed block B204 is completed, the wedge block 203 pops out due to the elastic force of the spring 202, and the straight surface of the wedge block 203 contacts the inner wall of the slot 205, so that the two can be fixed.

[0034] Reference Figure 2-Figure 3 The front end outer wall of the fixing block A201 is fixedly connected with a rubber gasket 3. When the fixing block A201 is connected with the fixing block B204, the rubber gasket 3 is deformed to a certain extent by the squeezing force of the two, so that the connection between the two is tighter, thereby improving the sealing effect. The outer wall of the cable 1 is rotatably connected with the fixing block B204. The outer diameter of the fixing block A201 is the same as the inner diameter of the fixing block B204. Through the connection between the fixing block B204 and the fixing block A201, the two groups of cables 1 can be connected and fixed, and there is no need to connect and fix by rotating multiple groups of bolts. The process of disassembly and installation is relatively convenient and quick.

[0035] Reference Figure 2-Figure 3 A sliding groove 206 is provided on the inner wall of the fixed block B204, and the sliding groove 206 does not penetrate the inner wall of the fixed block B204. During installation, the wedge block 203 can be inserted into the sliding groove 206 first, and the fixed block B204 can be rotated to rotate the card slot 205 to correspond to the position of the wedge block 203, and the connection and fixation can be completed. A card slot 205 is provided on the outer wall of the fixed block B204, and the sliding groove 206 is connected with the card slot 205, and the wedge block 203 is engaged with the card slot 205. When the two groups of cables 1 need to be disconnected, the two groups of wedge blocks 203 can be pressed to make them disengage from the card slot 205, so that the limit between the fixed block B204 and the fixed block A201 can be released, and the two groups of cables 1 can be released.

[0036] Reference Figure 4 The fixed block A201 includes a surface layer 404. The fixed block A201 and the fixed block B204 are both provided with a surface layer 404, a flame retardant layer 402, an insulating layer 403 and a reflective layer 401, so as to better protect the connection of the cable 1. The material of the surface layer 404 is polyurethane. Polyurethane has good weather resistance and chemical stability, and can effectively protect the cable 1 to avoid damage to the surface of the cable 1. The top outer wall of the surface layer 404 is fixedly connected with an insulating layer 403. The material of the insulating layer 403 is cross-linked polyethylene. The cross-linked polyethylene has excellent insulation performance and electrical resistance, and can effectively prevent current leakage. The top outer wall of the insulating layer 403 is fixedly connected with a flame retardant layer 402, and the material of the flame retardant layer 402 is flame retardant polyvinyl chloride, which has good flame retardant properties and can effectively inhibit the spread of flames and reduce the damage of flames to the cable 1. The top outer wall of the flame retardant layer 402 is fixedly connected with a reflective layer 401, and the material of the reflective layer 401 is metal polymer, which is the base material of the reflective layer 401, and special fillers are added to improve the reflective performance, which is used to reflect light or heat, so as to prevent the fixed block A201 and the fixed block B204 from being exposed to the outside for a long time and being easily affected by ultraviolet rays and cracked and damaged.

[0037] Working principle: when it is necessary to connect two groups of cables 1, the wedge block 203 can be aligned with the opening position of the slide groove 206, and then the fixed block A201 can be inserted into the fixed block B204. The arc surface of the wedge block 203 is squeezed by the inner wall of the slide groove 206, so that the wedge block 203 moves inward, and then the fixed block B204 can be rotated to rotate the slide groove 206 on the outer wall of the wedge block 203. When the fixed block B204 is rotated to the position where the slot 205 corresponds to the wedge block 203, the wedge block 203 is ejected due to the elastic force of the spring 202 and is engaged with the slot 205. The straight surface of the wedge block 203 contacts the inner wall of the slot 205, and the two can be fixedly connected.

[0038] When the fixing block A201 and the fixing block B204 are connected and fixed, the rubber gasket 3 is squeezed by the force of the two and deforms to a certain extent, making the connection between the two more tightly fitted, thereby improving the sealing performance, improving the waterproof effect of the fixing mechanism 2, and preventing rain and the like from affecting the connection of the cable 1. In addition, through the design of the reflective layer 401 in the fixing block A201 and the fixing block B204, part of the ultraviolet rays can be reflected to avoid the situation where it is easy to dry and crack due to long-term ultraviolet radiation. The setting of the flame retardant layer 402 can prevent the cable 1 from being damaged by excessive fire. The setting of the insulating layer 403 can prevent current leakage from affecting the staff. The setting of the surface layer 404 can avoid the wear caused by friction when the cable 1 contacts the fixing block A201 or the fixing block B204, thereby improving the overall service life.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable head reinforced insulation sleeve, comprising a cable (1), characterized in that: The outer wall of the cable (1) is provided with a fixing mechanism (2); The fixing mechanism (2) comprises a fixing block A (201), the inner wall of the fixing block A (201) being elastically connected to a wedge block (203) via a spring (202), the front end outer wall of the fixing block A (201) being fixedly connected to a rubber gasket (3), the outer wall of the cable (1) being rotatably connected to a fixing block B (204), and the outer wall of the fixing block B (204) being provided with a slot (205).

2. The cable head reinforcement insulation sleeve according to claim 1, characterized in that: The fixing block A (201) is fixedly connected to an outer wall of a side of the cable (1) away from the fixing block B (204), and a sliding groove (206) is provided on an inner wall of the fixing block B (204).

3. The cable head reinforcement insulation sleeve according to claim 1, characterized in that: One end of the spring (202) is fixedly connected to the outer wall of the wedge block (203), and the other end of the spring (202) is fixedly connected to the inner wall of the fixed block A (201).

4. The cable head reinforcement insulation sleeve according to claim 1, characterized in that: The outer wall of the wedge block (203) is slidably connected to the inner wall of the fixed block A (201), and the wedge block (203) is engaged with the engagement groove (205).

5. The cable head reinforcement insulation sleeve according to claim 1, characterized in that: The fixing block A (201) is annular, and the outer diameter of the fixing block A (201) is the same as the inner diameter of the fixing block B (204).

6. The cable head reinforcement insulation sleeve according to claim 1, characterized in that: The fixed block A (201) comprises a surface layer (404), the top outer wall of the surface layer (404) is fixedly connected to an insulating layer (403), the top outer wall of the insulating layer (403) is fixedly connected to a flame retardant layer (402), and the top outer wall of the flame retardant layer (402) is fixedly connected to a reflective layer (401).

7. The cable head reinforcement insulation sleeve according to claim 6, characterized in that: The material of the surface layer (404) is polyurethane, and the material of the insulating layer (403) is cross-linked polyethylene.

8. The cable head reinforcement insulation sleeve according to claim 6, characterized in that: The material of the flame retardant layer (402) is flame retardant polyvinyl chloride, and the material of the reflective layer (401) is metal polymer.

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