A female cable breakout connection device

Abstract

The utility model discloses a kind of female cable branch connecting devices, including two-labium type connecting mechanism and branch connecting mechanism;Two-labium type connecting mechanism includes upper clamp and lower clamp, and first bite tightly tooth is arranged on the inner wall of the upper clamp and the lower clamp;Auxiliary mechanism is installed in the sliding installation groove;Branch connecting mechanism includes the elastic part of upper and lower separation arrangement, and one end of the two elastic parts is equipped with branch end connecting part;The utility model two-labium type connecting mechanism is fixedly connected to main trunk line by first bite tightly tooth and second bite tightly tooth;And branch connecting mechanism is used to realize the connection of branch branch line cable conductor and main trunk line.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and more specifically to cable branch connection, and to a bus cable branch connection device. Background Technology

[0002] A busbar is a product made of highly conductive materials such as copper (copper busbar) or aluminum, used to transmit electrical energy and has the ability to collect and distribute power. It is the main conductor used by a power station or substation to transmit electrical energy. Through it, the electrical energy output from generators, transformers, or rectifiers is transmitted to various users or other substations.

[0003] In a power system, busbars connect the various current-carrying branch circuits in the power distribution equipment, playing the role of collecting, distributing and transmitting electrical energy.

[0004] In existing technologies, branch connections of low-voltage cables generally use "C" type clamps prefabricated in the factory or installed on-site as tap changers.

[0005] On-site installation of tap changers involves stripping the cable insulation and then pressing the main line and branch lines together using specific tap changers. While this method is simple to operate, it suffers from poor connection reliability and weak waterproof and corrosion resistance.

[0006] The factory-prefabricated "C" clamp branching method involves placing the main conductor and branch conductor into copper "C" clamps in the factory, then hydraulically clamping them together. A protective body in a specific tree-branch shape can be injection-molded onto the outside of the branch. This method offers high connection reliability and good waterproof and corrosion resistance. The disadvantages are that parameters such as the branch location must be measured beforehand, and cable hoisting is relatively difficult.

[0007] The existing technology, with publication number CN118232122B, entitled "A Power Cable Branching Device and Its Usage Method," belongs to the field of power cable construction technology. It includes branch sleeves and conductive rods. Multiple branch sleeves are arranged side-by-side. Each branch sleeve includes a first sleeve and a second sleeve, with the axis of the first sleeve perpendicular to the axis of the second sleeve. A conductive hole is formed at the axis of the first sleeve, and the conductive rod is fitted inside the conductive hole. The multiple branch sleeves are rotatably connected to the conductive rod, and fixing nuts are threaded to both ends of the conductive rod. This invention can adjust the branching direction according to the cable's extension direction when laying cables in a shaft, avoiding cable bending and improving cable lifespan.

[0008] The main cable structure consists of a conductor made of copper tubing and stranded copper wire. The conductor's outer surface is covered with a fire-resistant insulation layer, a cross-linked polyethylene insulation layer, a fire-resistant layer, and a halogen-free outer sheath. The main cable's current carrying capacity ranges from 400A to 3000A. The conductor has a relatively large outer diameter (20-50mm) and is hollow in the middle, making traditional "C"-type clamp branching methods unsuitable. Therefore, this invention relates to a branching connection device for main cables. This device features high connection reliability, simple structure, high versatility, convenient installation and operation, and low cost. Utility Model Content

[0009] The purpose of this invention is to provide a new technical solution for a branch connection device for a main cable.

[0010] This utility model provides a branch connection device for a main cable, including a two-lobed connection mechanism and a branch connection mechanism, wherein the branch connection mechanism is fixedly connected to the two-lobed connection mechanism;

[0011] The two-part connecting mechanism includes an identical upper clamp and a lower clamp, which are correspondingly fitted to each other. The inner walls of the upper clamp and the lower clamp are fixedly provided with first clamping teeth with forward threads. The inner walls of the upper clamp and the lower clamp are provided with a plurality of sliding mounting grooves at equal intervals, and limit grooves are provided on both sides of the sliding mounting grooves.

[0012] An auxiliary mechanism is slidably installed inside the sliding mounting groove. The auxiliary mechanism includes a mounting main ring that slides inside the sliding mounting groove. A second clamping tooth with a reverse thread is fixedly provided on the mounting main ring.

[0013] The branch connection mechanism includes upper and lower elastic parts that are separated. One end of the upper and lower elastic parts is fixedly provided with a branch end connection part, and the other end of the upper and lower elastic parts is fixedly connected with a transition part. The other end of the transition part is fixedly provided with a connecting copper tube, and an elastic sheet is provided between the upper and lower branch end connection parts.

[0014] Furthermore, the upper clamp and the lower clamp are integrally formed with connecting platforms on both sides, and the connecting platforms have two first connecting holes at both ends, and first fixing bolts are installed in the first connecting holes of the upper and lower connecting platforms.

[0015] Furthermore, a protruding branch connection platform is integrally provided in the middle of the connection platform on one side. A second connection hole is provided on the branch connection platform. The branch connection platform and the branch end connection part are fixedly connected by a second fixing bolt that passes through and is installed inside the second connection hole.

[0016] Furthermore, limiting rings are fixedly provided on both sides of the mounting main ring, and the mounting main ring is slidably installed inside the sliding mounting groove, while the limiting rings on both sides are slidably installed inside the limiting grooves on both sides respectively.

[0017] Furthermore, the first and second clenching teeth have opposite spiral directions, the spacing between the first and second clenching teeth is the same, and the overall inner diameter of the first clenching teeth is larger than the overall inner diameter of the second clenching teeth.

[0018] Furthermore, the upper and lower branch end connecting parts are respectively engaged on the outer sides of the upper and lower branch connecting platforms, and the ends of the branch end connecting parts are attached to the ends of the connecting platforms of the upper clamp and the lower clamp.

[0019] Furthermore, the two end faces of the elastic sheet are respectively attached to the inner sides of the upper and lower branch end connecting portions, and are located on the outer side of the branch connecting platform.

[0020] Furthermore, the elastic sheet has an arc in the middle facing the adapter, and the connecting copper tube is used to crimp the branch cable conductor.

[0021] The beneficial effects of this utility model are:

[0022] This utility model uses a two-part connecting mechanism to connect the main line. The two-part connecting mechanism uses an upper clamp and a lower clamp to clamp and fix the main line. The upper clamp and the lower clamp are cylindrical to facilitate a tight fit to the outside of the main line. The upper clamp and the lower clamp are fastened together by a first fixing bolt to fix the main line.

[0023] The upper and lower clamps are provided with first clamping teeth with forward threads on their inner sides. The main line is locked by the first clamping teeth, which effectively prevents the main line from separating under force. Several auxiliary mechanisms are slidably installed on the inner sides of the upper and lower clamps. The mounting body ring of the auxiliary mechanism is provided with second clamping teeth with reverse threads on its inner side. The main line can be fixedly connected by the opposite spiral setting of the first and second clamping teeth. The inner diameter of the second clamping teeth of the mounting body ring is smaller than the inner diameter of the first clamping teeth, which makes it easier for the auxiliary mechanism to lock and clamp smaller busbars. The auxiliary mechanism can be installed or not. When the auxiliary mechanism is not installed, the sliding mounting groove forms a gap to facilitate heat dissipation and cooling. When the auxiliary mechanism is installed, it is easy to lock and clamp small-sized main lines.

[0024] The branch connection mechanism is designed to connect the branch cable conductors to the main line. The branch connection mechanism uses an elastic part to elastically adjust the branch end connection part, so that when the branch end connection part is connected to the connection platform with the second fixing bolt, it can maintain a tight connection with the connection platform. The elastic plate supports the branch end connection part, so that the branch connection part can be stably locked on the outside of the connection platform, which is convenient for installation and connection. The connecting pipe facilitates the connection of the branch cable conductors, maintains the electrical connection between the main line and the branch cable conductors, and completes the branching of the large cross-section main line to the small cross-section branch cable conductor.

[0025] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0027] Figure 1 This is a schematic diagram of a branch connection device for a bus cable in one embodiment;

[0028] Figure 2 This is a schematic diagram of a two-lobed connection mechanism of a bus cable branch connection device in one embodiment.

[0029] Figure 3 A bottom view of the upper clamp of the two-lobed connection mechanism of a mother cable branch connection device in one embodiment;

[0030] Figure 4 This is a bottom view of the upper clamping part of the two-lobed connection mechanism of a mother cable branch connection device in one embodiment;

[0031] Figure 5 This is a schematic diagram of an auxiliary mechanism for a bus cable branch connection device in one embodiment;

[0032] Figure 6 This is a schematic diagram of the branch connection mechanism of a bus cable branch connection device in one embodiment.

[0033] The diagram shows the following: 1. Two-part connection mechanism; 101. Upper clamp; 102. Lower clamp; 103. Connection platform; 104. Branch connection platform; 105. First connection hole; 106. Second connection hole; 107. First fixing bolt; 108. First clamping tooth; 109. Sliding mounting groove; 110. Limiting groove; 2. Branch connection mechanism; 201. Elastic part; 202. Branch end connection part; 203. Adapter part; 204. Connecting copper pipe; 205. Second fixing bolt; 206. Elastic sheet; 3. Auxiliary mechanism; 301. Mounting main ring; 302. Second clamping tooth; 303. Limiting ring. Detailed Implementation

[0034] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0035] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0036] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0037] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0038] like Figure 1-6 As shown, a branch connection device for a bus cable includes a two-lobed connection mechanism 1 and a branch connection mechanism 2, wherein the branch connection mechanism 2 is fixedly connected to the two-lobed connection mechanism 1.

[0039] The two-part connecting mechanism 1 includes an identical upper clamp 101 and a lower clamp 102, which are correspondingly fitted to each other. The inner walls of the upper clamp 101 and the lower clamp 102 are fixedly provided with first clamping teeth 108 with forward threads. The inner walls of the upper clamp 101 and the lower clamp 102 are provided with a plurality of sliding mounting grooves 109 at equal intervals. Limiting grooves 110 are respectively provided on both sides of the sliding mounting grooves 109.

[0040] An auxiliary mechanism 3 is slidably installed inside the sliding mounting groove 109. The auxiliary mechanism 3 includes a mounting main ring 301 that is slidably located inside the sliding mounting groove 109. A second clamping tooth 302 with a reverse thread is fixedly provided on the mounting main ring 301.

[0041] The branch connection mechanism 2 includes an elastic part 201 that is set up separately at the top and bottom. One end of the two elastic parts 201 is fixedly provided with a branch end connection part 202. The other end of the two elastic parts 201 is fixedly connected with a transition part 203. The other end of the transition part 203 is fixedly provided with a connecting copper tube 204. An elastic piece 206 is provided between the two branch end connection parts 202.

[0042] In this embodiment, preferably, the upper clamp 101 and the lower clamp 102 are integrally formed with connecting platforms 103 on both sides. The connecting platforms 103 have two first connecting holes 105 at both ends. The first connecting holes 105 of the upper and lower connecting platforms 103 are installed with first fixing bolts 107.

[0043] It should be noted that the integrally formed connecting platform 103 facilitates the installation and tightening of the upper clamp 101 and the lower clamp 102, and the connecting platform 103 is fixedly connected and tightened through the first connecting hole 105 and the first fixing bolt 107, so that the upper clamp 101 and the lower clamp 102 can fix and clamp the main line.

[0044] In this embodiment, preferably, a protruding branch connection platform 104 is integrally provided in the middle of the connection platform 103 on one side. A second connection hole 106 is provided on the branch connection platform 104. The branch connection platform 104 and the branch end connection part 202 are fixedly connected by a second fixing bolt 205 that passes through and is installed inside the second connection hole 106.

[0045] It should be noted that the integrated design of the branch connection platform 104 facilitates the overall connection of the branch connection platform 104 with the upper clamp 101 and the lower clamp 102, and the branch connection platform 104 and the branch end connection part 202 are connected by the second fixing bolt 205 to maintain the electrical connection between the branch connection platform 104 and the branch end connection part 202.

[0046] In this embodiment, preferably, limiting rings 303 are fixedly provided on both sides of the mounting main ring 301, the mounting main ring 301 is slidably installed inside the sliding mounting groove 109, and the limiting rings 303 on both sides are slidably installed inside the limiting grooves 110 on both sides respectively.

[0047] It should be noted that the mounting main ring 301 is slidably mounted inside the sliding mounting groove 109 via the limiting ring 303, and the connection between the limiting groove 110 and the limiting ring 303 facilitates the detachable mounting of the mounting main ring 301 inside the upper clamp 101 and the lower clamp 102, which facilitates the locking and clamping of main lines of different sizes.

[0048] In this embodiment, preferably, the spiral directions of the first biting tooth 108 and the second biting tooth 302 are opposite, the spacing between the first biting teeth 108 and the spacing between the second biting teeth 302 are the same, and the overall inner diameter of the first biting tooth 108 is larger than the overall inner diameter of the second biting tooth 302.

[0049] It should be noted that the first clamping tooth 108 and the second clamping tooth 302 have opposite threads, which facilitates a tight locking connection of the main line. The opposite threads of the first clamping tooth 108 and the second clamping tooth 302 can improve the locking connection of the main line and effectively prevent the main line from slipping under force, causing the main line to separate from the two-part connection mechanism 1. Furthermore, the overall inner diameter of the first clamping tooth 108 is larger than the overall inner diameter of the second clamping tooth 302, so an auxiliary mechanism 3 can be installed to facilitate locking and clamping of main lines of different sizes.

[0050] In this embodiment, preferably, the upper and lower branch end connecting parts 202 are respectively engaged on the outside of the upper and lower branch connecting platforms 104, and the ends of the branch end connecting parts 202 are attached to the ends of the connecting platforms 103 of the upper clamp 101 and the lower clamp 102.

[0051] It should be noted that the branch end connection part 202 engages with the upper and lower branch connection platforms 104, which facilitates electrical connection and enables power transmission between the main line and the branch cable conductors. Furthermore, the branch end connection part 202 is attached to the end of the connection platform 103 of the upper clamp 101 and the lower clamp 102, which ensures that the branch end connection part 202 maintains balance and stability, does not rotate, and remains fixed.

[0052] In this embodiment, preferably, the two end faces of the elastic sheet 206 are respectively attached to the inner sides of the upper and lower branch end connecting portions 202, and are located on the outer side of the branch connecting platform 104.

[0053] It should be noted that the two ends of the elastic sheet 206 are attached to the branch end connection part 202, which facilitates the support of the branch end connection part 202, allowing the branch end connection part 202 to open and easily engage with the outside of the branch connection platform 104, thus achieving a stable engagement connection.

[0054] In this embodiment, preferably, the elastic sheet 206 has an arc in the middle facing the adapter 203, and the connecting copper tube 204 is used to crimp the branch cable conductor.

[0055] It should be noted that the elastic sheet 206 has an arc in the middle, which makes it easy for the branch end connection part 202 to deform under force, so that the elastic sheet 206 can be deformed under force, which facilitates the elastic adjustment of the branch end connection part 202 and the connecting copper tube 204 can fix the branch cable conductor, and facilitates the clamping and locking of the branch cable conductor by the wire clamping pliers.

[0056] How to use this utility model:

[0057] First, the fireproof insulation layer, cross-linked polyethylene insulation layer, fireproof layer, and halogen-free outer sheath of the main line are stripped.

[0058] Furthermore, protect the hue marking lines and ensure insulation between the copper shielding layer and the steel armor;

[0059] Remove the oxide from the copper shielding layer, apply solder, and roughen the surface of the moisture-proof section of the outer sheath with sandpaper and apply sealant to prevent water from seeping into the cable head.

[0060] Mark the hue at the branch point of the main line, accurately measure the position of the cut point of the copper shielding layer, solder it firmly to prevent the copper shielding layer from loosening, and tie it tightly with copper wire on the inside of the cut point.

[0061] Wipe the surface of the main line clean with a lint-free cloth or paper soaked in detergent.

[0062] The upper clamp 101 and the lower clamp 102 are attached to the outside of the connector of the main line, and the upper clamp 101 and the lower clamp 102 are fixedly connected by the first fixing bolt 107.

[0063] The upper clamp 101 and the lower clamp 102 are locked together by the first clamping tooth 108 on the inner wall and the second clamping tooth 302 of the auxiliary mechanism 3;

[0064] Insert the end of the branch cable conductor into the inside of the connecting copper tube 204, and use wire crimping pliers to crimp the connecting copper tube 204.

[0065] The branch end connection part 202 and the elastic piece 206 in the branch connection mechanism 2 are engaged on the outside of the branch connection platform 104, and then fixedly connected by the second fixing bolt 205.

[0066] The two-lobed connection mechanism 1 and the branch connection mechanism 2 are wrapped with insulating tape, then stress tubes are installed, and finally protected by shrink sleeves to achieve safety protection at the branch connection.

[0067] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A branch connection device for a bus cable, characterized in that: It includes a two-lobed connecting mechanism (1) and a branch connecting mechanism (2), wherein the branch connecting mechanism (2) is fixedly connected to the two-lobed connecting mechanism (1); The two-part connecting mechanism (1) includes an identical upper clamp (101) and a lower clamp (102). The upper clamp (101) and the lower clamp (102) are fitted together correspondingly. The inner walls of the upper clamp (101) and the lower clamp (102) are fixedly provided with first clamping teeth (108) with a forward thread. The inner walls of the upper clamp (101) and the lower clamp (102) are provided with a plurality of sliding mounting grooves (109) at equal intervals. The sliding mounting grooves (109) are respectively provided with limit grooves (110) on both sides. An auxiliary mechanism (3) is slidably installed inside the sliding mounting groove (109). The auxiliary mechanism (3) includes a mounting main ring (301) that is slidably located inside the sliding mounting groove (109). A second clamping tooth (302) with a reverse thread is fixedly provided on the mounting main ring (301). The branch connection mechanism (2) includes upper and lower elastic parts (201) that are separated. One end of the upper and lower elastic parts (201) is fixedly provided with a branch end connection part (202). The other end of the upper and lower elastic parts (201) is fixedly connected with a transition part (203). The other end of the transition part (203) is fixedly provided with a connecting copper tube (204). An elastic piece (206) is provided between the upper and lower branch end connection parts (202).

2. The bus cable branch connection device according to claim 1, characterized in that: The upper clamp (101) and the lower clamp (102) are integrally formed with connecting platforms (103) on both sides. The connecting platforms (103) have two first connecting holes (105) at both ends. First fixing bolts (107) are installed in the first connecting holes (105) of the upper and lower connecting platforms (103).

3. The bus cable branch connection device according to claim 2, characterized in that: A protruding branch connection platform (104) is integrally provided in the middle of the connection platform (103) on one side. A second connection hole (106) is provided on the branch connection platform (104). The branch connection platform (104) and the branch end connection part (202) are fixedly connected by a second fixing bolt (205) that passes through and is installed inside the second connection hole (106).

4. The bus cable branch connection device according to claim 1, characterized in that: Limiting rings (303) are fixedly provided on both sides of the mounting main ring (301). The mounting main ring (301) is slidably installed inside the sliding mounting groove (109), and the limiting rings (303) on both sides are slidably installed inside the limiting grooves (110) on both sides respectively.

5. A bus cable branch connection device according to claim 1, characterized in that: The first biting tooth (108) and the second biting tooth (302) have opposite spiral directions. The spacing between the first biting teeth (108) and the spacing between the second biting teeth (302) are the same. The overall inner diameter of the first biting tooth (108) is larger than the overall inner diameter of the second biting tooth (302).

6. A branch connection device for a bus cable according to claim 3, characterized in that: The upper and lower branch end connecting parts (202) are respectively engaged on the outside of the upper and lower branch connecting platforms (104), and the ends of the branch end connecting parts (202) are attached to the ends of the connecting platforms (103) of the upper clamp (101) and the lower clamp (102).

7. A bus cable branch connection device according to claim 6, characterized in that: The two ends of the elastic sheet (206) are respectively attached to the inner sides of the upper and lower branch end connecting parts (202) and are located on the outside of the branch connecting platform (104).

8. A bus cable branch connection device according to claim 7, characterized in that: The elastic sheet (206) has an arc in the middle facing the adapter (203), and the connecting copper tube (204) is used to crimp the branch cable conductor.

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