Low-voltage power cable with special-shaped conductor structure

Abstract

The utility model provides a low-voltage power cable with a special-shaped conductor structure, which comprises a special-shaped insulating sleeve and a circular conductor, a metal shielding layer is fixedly connected onto the inner wall of the special-shaped insulating sleeve, a polyvinyl chloride protective sleeve is fixedly connected onto the inner wall of the metal shielding layer, and a special-shaped conductor is fixedly connected onto the inner wall of the polyvinyl chloride protective sleeve. The outer wall of the special-shaped insulation sleeve is movably sleeved with an alloy wedging sleeve, the outer wall of the alloy wedging sleeve is fixedly connected with a rubber buffer layer, and the left side of the alloy wedging sleeve is provided with a through hole. Through the shape design of the special-shaped insulating sleeve and the special-shaped conductor, the whole structure is of a flat strip-shaped structure, is easy to bend and high in flexibility, facilitates laying work, can save space, can carry out anti-interference protection on the special-shaped conductor through the design of the metal shielding layer, and can carry out anti-interference protection on the special-shaped conductor through the design of the alloy wedging sleeve. The device can be installed at the exposed laying position of the special-shaped insulation sleeve, and targeted compression resistance protection is carried out on the part of the special-shaped insulation sleeve.

Description

Technical Field

[0001] The utility model relates to a low-voltage power cable with a special-shaped conductor structure, belonging to the technical field of power cables. Background Technique

[0002] Power cables are used to transmit and distribute electrical energy. They are commonly used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. Power cables are cable products used to transmit and distribute high-power electrical energy in the main lines of power systems, including power cables of various voltage levels from 1 to 500 kV and above, and various insulations.

[0003] A Chinese patent discloses an insulated low-voltage power cable with a publication number of CN212541978U. The technical solution disclosed in this patent document is as follows: It includes a cable outer sheath. Anti-slip patterns are provided on the surface of the cable outer sheath. A fixed filling block is fixedly connected to the inner surface of the cable outer sheath. A fixed connecting cable is fixedly connected to the middle of the fixed filling block. First cable copper cores are provided on both sides of the fixed connecting cable. Reinforcing cable ropes are fixedly connected to both sides of the fixed connecting cable inside the fixed filling block.

[0004] In order to solve the problem that the existing cables cannot ensure a stable structure, the prior art is to adopt a method of cooperating with structures such as reinforcing cable ropes and reinforcing bars. However, there will still be inconvenient situations in some environments. The setting of the reinforcing cable ropes and reinforcing bars in this structure will make the overall cable not easy to bend, with poor flexibility and inconvenience in installation. Summary of the Utility Model

[0005] Based on the above background, the purpose of the present utility model is to provide a low-voltage power cable with a special-shaped conductor structure to solve the problems described in the background technique.

[0006] In order to achieve the above utility model purpose, the present utility model provides the following technical solutions:

[0007] A low-voltage power cable with a special-shaped conductor structure includes a special-shaped insulating sleeve and a circular conductor. A metal shielding layer is fixedly connected to the inner wall of the special-shaped insulating sleeve. A PVC protective sleeve is fixedly connected to the inner wall of the metal shielding layer. A special-shaped conductor is fixedly connected to the inner wall of the PVC protective sleeve. An alloy fitting sleeve is movably sleeved on the outer wall of the special-shaped insulating sleeve. A rubber buffer layer is fixedly connected to the outer wall of the alloy fitting sleeve. A through hole is formed on the left side of the alloy fitting sleeve. A rubber insertion leg is fixedly connected to the right side of the alloy fitting sleeve. A transfer mechanism is arranged on the special-shaped insulating sleeve. The transfer mechanism includes a wrapping shell. A rubber ring is fixedly connected to the inner wall of the wrapping shell. The inner wall of the rubber ring is movably connected to the outer wall of the special-shaped insulating sleeve.

[0008] Preferably, a closing plate is fixedly installed on the left side of the wrapping shell. A conductive plate is fixedly installed on the right side of the closing plate. The circular conductor is fixedly connected to the left side of the conductive plate. The end of the circular conductor away from the conductive plate extends to the left side of the closing plate.

[0009] Preferably, a conductive spring is fixedly connected to the right side of the conductive plate. A conductive patch is fixedly connected to the right side of the conductive spring. The right side of the conductive patch is movably connected to the left side of the special-shaped conductor.

[0010] Preferably, connection blocks are fixedly installed on both the top and bottom of the wrapping shell. A groove is formed on the side of the connection block close to the special-shaped insulating sleeve. A sliding square rod is slidably connected to the inner wall of the connection block.

[0011] Preferably, one end of the sliding square rod close to the special-shaped insulating sleeve extends into the inner cavity of the groove and is fixedly connected to a positioning block. The side of the positioning block away from the sliding square rod is movably connected to the outer surface of the special-shaped insulating sleeve. The end of the sliding square rod away from the positioning block is fixedly connected to a turning piece.

[0012] Preferably, an elastic member is fixedly connected to the side of the turning piece close to the special-shaped insulating sleeve. The end of the elastic member away from the turning piece is fixedly connected to the outer wall of the connection block. A pull rod is welded to the outer wall of the turning piece.

[0013] Compared with the prior art, the present utility model has the following advantages:

[0014] Through the shape design of the special-shaped insulating sleeve and the special-shaped conductor, the structure as a whole is a flat strip structure, which is easy to bend, has high flexibility, is convenient for laying, and can save space. Through the design of the metal shielding layer, the special-shaped conductor can be protected against interference. Through the design of the alloy fitting sleeve, it can be installed in the exposed laying place of the special-shaped insulating sleeve to provide targeted pressure protection for this part of the special-shaped insulating sleeve. Through the cooperation of the through hole and the rubber plug-in leg, it is convenient for users to splice the alloy fitting sleeve, thereby improving the practicality of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the truncated structure of the special-shaped insulating sleeve of the utility model;

[0018] Figure 3 This is a schematic diagram of the separation structure of the wrapping shell and the closing plate of the utility model;

[0019] Figure 4 This is a structural schematic diagram of the connection block of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the alloy fitting sleeve of the utility model.

[0021] In the figure: 1. special-shaped insulating sleeve; 11. round conductor; 12. polyvinyl chloride protective sleeve; 13. metal shielding layer; 14. special-shaped conductor; 15. rubber buffer layer; 16. alloy fitting sleeve; 161. through hole; 162. rubber plug leg; 2. switching mechanism; 21. wrapping shell; 211. rubber ring; 212. closing plate; 213. conductive plate; 214. conductive spring; 215. conductive patch; 22. connecting block; 221. groove; 222. sliding square rod; 223. positioning block; 224. turning piece; 225. elastic piece; 226. pull rod. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described in detail below through specific embodiments and in combination with the accompanying drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any form of modification and / or change made to the utility model will fall within the protection scope of the utility model.

[0023] In the present invention, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the field. The methods in the following embodiments, unless otherwise specified, are conventional methods in the field. The components or equipment in the following embodiments, unless otherwise specified, are universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods.

[0024] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. In the following detailed description, for ease of explanation, many specific details are described to provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may also be implemented by those skilled in the art without these specific details.

[0025] like Figures 1 - 5 As shown, a low-voltage power cable with a special-shaped conductor structure includes a special-shaped insulating sleeve 1 and a round conductor 11, a metal shielding layer 13 is fixedly connected to the inner wall of the special-shaped insulating sleeve 1, a polyvinyl chloride protective sleeve 12 is fixedly connected to the inner wall of the metal shielding layer 13, a special-shaped conductor 14 is fixedly connected to the inner wall of the polyvinyl chloride protective sleeve 12, an alloy fitting sleeve 16 is movably sleeved on the outer wall of the special-shaped insulating sleeve 1, a rubber buffer layer 15 is fixedly connected to the outer wall of the alloy fitting sleeve 16, a through hole 161 is opened on the left side of the alloy fitting sleeve 16, a rubber plug leg 162 is fixedly connected to the right side of the alloy fitting sleeve 16, and a switching mechanism 2 is provided on the special-shaped insulating sleeve 1, and the switching mechanism 2 includes a wrapping shell 21, and the inner wall of the wrapping shell 21 is fixedly connected to the rubber plug leg 162. A rubber ring 211 is connected, and the inner wall of the rubber ring 211 is movably connected to the outer wall of the special-shaped insulating sleeve 1. Through the shape design of the special-shaped insulating sleeve 1 and the special-shaped conductor 14, the structure as a whole is a flat belt structure, which is easy to bend and install. The material of the metal shielding layer 13 can be set to aluminum alloy wire, which is used to provide anti-interference protection for the special-shaped conductor 14. Through the cooperation of the through hole 161 and the rubber plug-in leg 162, it is convenient for the operator to splice the alloy fitting sleeve 16. The operator can install the alloy fitting sleeve 16 on the exposed laying part of the special-shaped insulating sleeve 1 to provide targeted pressure resistance protection for this part of the special-shaped insulating sleeve 1. Through the design of the rubber ring 211, the connection between the encapsulating shell 21 and the special-shaped insulating sleeve 1 can be sealed.

[0026] In this embodiment, a closing plate 212 is fixedly installed on the left side of the wrapping housing 21. A conductive plate 213 is fixedly installed on the right side of the closing plate 212. A circular conductor 11 is fixedly connected to the left side of the conductive plate 213. The end of the circular conductor 11 away from the conductive plate 213 extends to the left side of the closing plate 212. A conductive spring 214 is fixedly connected to the right side of the conductive plate 213. A conductive patch 215 is fixedly connected to the right side of the conductive spring 214. The right side of the conductive patch 215 is movably connected to the left side of the special-shaped conductor 14. The wrapping housing 21 is inserted onto the outer wall of the special-shaped insulating sleeve 1, so that the conductive patch 215 is in close contact with the end of the special-shaped conductor 14. Thus, the special-shaped conductor 14 can be electrically connected to the circular conductor 11. In an installation environment where no bending is required, it can be laid through the circular conductor 11, which is convenient for users. The circular conductor 11 is a common cable structure, thereby reducing the overall laying cost.

[0027] In this embodiment, connection blocks 22 are fixedly installed on both the top and bottom of the wrapping housing 21. A groove 221 is formed on the side of the connection block 22 close to the special-shaped insulating sleeve 1. A sliding square rod 222 is slidably connected to the inner wall of the connection block 22. One end of the sliding square rod 222 close to the special-shaped insulating sleeve 1 extends into the inner cavity of the groove 221 and is fixedly connected to a positioning block 223. The side of the positioning block 223 away from the sliding square rod 222 is movably connected to the outer surface of the special-shaped insulating sleeve 1. A turning member 224 is fixedly connected to the end of the sliding square rod 222 away from the positioning block 223. An elastic member 225 is fixedly connected to the side of the turning member 224 close to the special-shaped insulating sleeve 1. One end of the elastic member 225 away from the turning member 224 is fixedly connected to the outer wall of the connection block 22. A pull rod 226 is welded to the outer wall of the turning member 224. Before inserting the wrapping housing 21 onto the outer wall of the special-shaped insulating sleeve 1, the two pull rods 226 are pulled in opposite directions, so that the positioning block 223 retracts partially into the groove 221. After the wrapping housing 21 is inserted in place, the pull rods 226 can be released. Through the restoring elastic force of the elastic member 225, the positioning block 223 is driven to closely adhere to the outer wall of the special-shaped insulating sleeve 1, realizing the function of locking the position of the wrapping housing 21.

[0028] The working principle of a low-voltage power cable with a special-shaped conductor structure of the present utility model is as follows: Through the shape design of the special-shaped insulating sleeve 1 and the special-shaped conductor 14, the overall structure is a flat strip structure, which is easy to bend and convenient for installation. If it is necessary to connect the special-shaped conductor 14 to the circular conductor 11, first pull the two pull rods 226 in opposite directions, and then insert the wrapping housing 21 onto the outer wall of the special-shaped insulating sleeve 1, so that the conductive patch 215 is in close contact with the end of the special-shaped conductor 14, and then the pull rods 226 can be released.

[0029] In this article, specific examples are used to elaborate on the principles and implementation modes of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principles of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A low-voltage power cable with a special-shaped conductor structure, comprising a special-shaped insulating sleeve (1) and a circular conductor (11), characterized in that: A metal shielding layer (13) is fixedly connected to the inner wall of the special-shaped insulating sleeve (1), a polyvinyl chloride protective sleeve (12) is fixedly connected to the inner wall of the metal shielding layer (13), a special-shaped conductor (14) is fixedly connected to the inner wall of the polyvinyl chloride protective sleeve (12), an alloy fitting sleeve (16) is movably sleeved on the outer wall of the special-shaped insulating sleeve (1), a rubber buffer layer (15) is fixedly connected to the outer wall of the alloy fitting sleeve (16), a through hole (161) is provided on the left side of the alloy fitting sleeve (16), a rubber plug leg (162) is fixedly connected to the right side of the alloy fitting sleeve (16), and a switching mechanism (2) is provided on the special-shaped insulating sleeve (1), the switching mechanism (2) comprises a wrapping shell (21), a rubber ring (211) is fixedly connected to the inner wall of the wrapping shell (21), and the inner wall of the rubber ring (211) is movably connected to the outer wall of the special-shaped insulating sleeve (1).

2. The low-voltage power cable with a special-shaped conductor structure according to claim 1, wherein: A closing plate (212) is fixedly mounted on the left side of the encapsulating shell (21), a conductive plate (213) is fixedly mounted on the right side of the closing plate (212), the circular conductor (11) is fixedly connected to the left side of the conductive plate (213), and the end of the circular conductor (11) away from the conductive plate (213) extends to the left side of the closing plate (212).

3. The low-voltage power cable with a special-shaped conductor structure according to claim 2, characterized in that: The right side of the conductive plate (213) is fixedly connected to a conductive spring (214), the right side of the conductive spring (214) is fixedly connected to a conductive patch (215), and the right side of the conductive patch (215) is movably connected to the left side of the special-shaped conductor (14).

4. The low-voltage power cable with a special-shaped conductor structure according to claim 1, characterized in that: The top and bottom of the wrapping shell (21) are fixedly mounted with connection blocks (22); a groove (221) is provided on a side of the connection block (22) close to the special-shaped insulating sleeve (1); and a sliding square rod (222) is slidably connected to the inner wall of the connection block (22).

5. The low-voltage power cable with a special-shaped conductor structure according to claim 4, characterized in that: One end of the sliding square rod (222) close to the special-shaped insulating sleeve (1) extends into the inner cavity of the groove (221) and is fixedly connected to a positioning block (223); a side of the positioning block (223) away from the sliding square rod (222) is movably connected to the outer surface of the special-shaped insulating sleeve (1); and one end of the sliding square rod (222) away from the positioning block (223) is fixedly connected to a turning piece (224).

6. The low-voltage power cable with a special-shaped conductor structure according to claim 5, characterized in that: An elastic member (225) is fixedly connected to one side of the transition member (224) close to the special-shaped insulating sleeve (1), and one end of the elastic member (225) away from the transition member (224) is fixedly connected to the outer wall of the connecting block (22), and a pull rod (226) is welded to the outer wall of the transition member (224).

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