A low-voltage distribution box busbar bolt power-taking device

Abstract

The present application relates to a power taking device for a busbar bolt of a low-voltage distribution box, comprising: a pile head main body, which includes a pile head conductive rod and a grip rod joint sleeved on one end of the pile head conductive rod and rotatably connected to the pile head conductive rod; a power taking joint, which includes a power taking fitting, one end of the power taking fitting is detachably connected to the pile head conductive rod, and the other end is provided with a fastener for connecting a busbar bolt; a cable joint, which includes a cable fixing fitting, one end of the cable fixing fitting is detachably connected to the grip rod joint, and the other end is provided with a crimping joint for connecting a cable. The power taking fitting of the present application is fixedly connected to the existing busbar bolt on the busbar by means of a fastener, so that the power taking fitting is electrically connected to the busbar, and the power taking device can be connected to the busbar to realize power taking without drilling holes in the busbar. The present application can realize connection with the busbar without drilling holes in the busbar, and does not damage the insulating layer and the busbar structure of the busbar, greatly improving the installation efficiency of the connection between the power taking device and the busbar.

Description

Technical Field

[0001] This application relates to the technical field of busbar connectors for distribution boxes, and particularly to a busbar bolt power-taking device for low-voltage distribution boxes. Background Art

[0002] Currently, the requirements for power reliability are getting higher and higher. To ensure that users do not lose power, the working conditions of emergency power supply and transmission, temporary power taking and supply are becoming more and more common. It has become normal to use emergency equipment to supply or take power to meet the power consumption needs of users.

[0003] Currently, for the emergency power supply or power taking operations of 0.4 kV users, the connection cables of the emergency equipment are connected to the low-voltage distribution cabinets of the users, and the power is supplied to the users through the emergency equipment or the power is transferred to another user.

[0004] Currently, the low-voltage distribution cabinets used in the distribution network are standard distribution cabinets of the GGD or GCK type. The internal interfaces are low-voltage busbars, and there are generally no mounting holes or there are remaining mounting holes on the busbars, and the standards are inconsistent.

[0005] During the operation, the end of the connection cable of the emergency equipment needs to be bolted to the mounting hole on the busbar or a new hole needs to be drilled on the busbar, resulting in a long operation time and problems of damaging the insulation layer and the busbar structure of the busbar. Summary of the Invention

[0006] The embodiments of this application provide a busbar bolt power-taking device for a low-voltage distribution box to solve the problems in the related technology that during the emergency power supply or power taking operation, the end of the connection cable of the emergency equipment needs to be bolted to the mounting hole on the busbar or a new hole needs to be drilled on the busbar, resulting in a long operation time and problems of damaging the insulation layer and the busbar structure of the busbar.

[0007] The embodiments of this application provide a busbar bolt power-taking device for a low-voltage distribution box, including:

[0008] A pile head main body, the pile head main body includes a pile head conductive rod, and a grip rod joint sleeved on one end of the pile head conductive rod and rotatably connected to the pile head conductive rod;

[0009] A power-taking joint, the power-taking joint includes a power-taking fitting, one end of the power-taking fitting is detachably connected to the pile head conductive rod, and the other end is provided with a fastener for connecting a busbar bolt;

[0010] A cable joint, the cable joint includes a cable fixing fitting, one end of the cable fixing fitting is detachably connected to the grip rod joint, and the other end is provided with a crimping head for connecting a cable.

[0011] In some embodiments: the pile head conductive rod is a cylindrical conductor, the front end of the pile head conductive rod is provided with a plug hole connected to the power taking hardware, one end of the power taking hardware is provided with a plug inserted into the plug hole, the plug of the power taking hardware is inserted into the plug hole and rotates synchronously with the pile head conductive rod;

[0012] The other end of the power taking fitting is provided with a stepped hole for accommodating the busbar bolts, and the fastener is located in the stepped hole. The fastener is a threaded sleeve or an internal thread embedded in the stepped hole and threadedly connected to the busbar bolts.

[0013] In some embodiments: the plug is a cylindrical conductor, the inner wall of the plug hole is provided with a first groove for accommodating a first contact finger, and the first groove is provided with a first contact finger for sliding contact with the outer wall of the plug;

[0014] A positioning boss is provided at one end of the power taking fitting close to the plug, a positioning groove matched with the positioning boss is provided in the plug hole, and the positioning boss is located in the positioning groove so that the power taking fitting rotates synchronously with the pile head conductive rod.

[0015] In some embodiments: a rotating rod for rotating the pile head conductive rod is provided at one end of the pile head conductive rod away from the power-taking fitting, one end of the rotating rod is fixedly connected to the pile head conductive rod, and the other end of the rotating rod is provided with a hexagonal head, and the hexagonal head is connected to an insulating wrench for driving the pile head conductive rod and the power-taking fitting to rotate.

[0016] In some embodiments: the pile head body further includes a limit sleeve sleeved on the front end of the pile head conductive rod, and a first spring driving the limit sleeve to move toward the power taking fitting;

[0017] The circumference of the pile head conductive rod is provided with a plurality of limiting holes for accommodating limiting steel balls, and the inner wall of the limiting sleeve is provided with unlocking grooves for cooperating with the limiting steel balls;

[0018] A circular boss is provided at one end of the power taking fitting close to the plug connector, and a locking groove cooperating with a limiting steel ball is provided on the outer wall of the circular boss.

[0019] In some embodiments: a positioning pin is vertically arranged on the side wall of the pile head conductive rod, and a first slot cooperating with the positioning pin is opened on the limiting sleeve, and the first slot cooperates with the positioning pin so that the limiting sleeve moves in a direction close to the positioning pin to lock the limiting steel ball in the locking groove;

[0020] When the limiting steel ball is locked in the locking groove, the limiting sleeve is rotated to clamp the positioning pin in the first clamping groove, and the first clamping groove is a "Τ"-shaped or "Γ"-shaped structure.

[0021] In some embodiments: One end of the grip joint close to the cable fixing fitting is provided with a plugging hole for connecting the cable fixing fitting, and one end of the cable fixing fitting is provided with a plugging head inserted into the plugging hole;

[0022] A locking pin is vertically provided on the side wall of the plugging head, and a second card slot for locking the plugging head is provided at the orifice of the plugging hole;

[0023] After the plugging head is inserted into the plugging hole, the cable fixing fitting is rotated to engage the locking pin in the second card slot, and the second card slot is of a "Τ" - shaped or "Γ" - shaped structure.

[0024] In some embodiments: One end of the grip joint close to the cable fixing fitting is sleeved with a locking sleeve, and a second spring for driving the locking sleeve to move in the direction close to the cable fixing fitting, and the second spring drives the locking sleeve to abut against the cable fixing fitting to fix the locking pin in the second card slot.

[0025] In some embodiments: One end of the grip joint is provided with an installation hole for inserting the pile head conductive rod, a second groove for accommodating the second contact finger is provided on the inner wall of the installation hole, and a second contact finger for slidingly contacting the outer wall of the pile head conductive rod is provided in the second groove;

[0026] A third groove for accommodating the third contact finger is provided on the inner wall of the plugging hole, and a third contact finger for slidingly contacting the outer wall of the plugging head is provided in the third groove.

[0027] In some embodiments: The pile head body further includes a first insulating housing covering the outer wall of the pile head conductive rod, and a second insulating housing covering the outer wall of the grip joint;

[0028] The power - taking joint further includes a third insulating housing covering the outer wall of the power - taking fitting;

[0029] The cable joint further includes a fourth insulating housing covering the outer wall of the cable fixing fitting, and a waterproof joint is threadedly connected to the end of the fourth insulating housing.

[0030] The beneficial effects brought by the technical solution provided by this application include:

[0031] The embodiment of the present application provides a power taking device for a busbar bolt of a low-voltage distribution box. Since the power taking device for the busbar bolt of the low-voltage distribution box of the present application is provided with a pile head main body, the pile head main body includes a pile head conductive rod, and a grip rod joint sleeved on one end of the pile head conductive rod and rotatably connected to the pile head conductive rod; a power taking joint, the power taking joint includes a power taking fitting, one end of the power taking fitting is detachably connected to the pile head conductive rod, and the other end is provided with a fastener for connecting the busbar bolt; a cable joint, the cable joint includes a cable fixing fitting, one end of the cable fixing fitting is detachably connected to the grip rod joint, and the other end is provided with a pressure joint for connecting the cable.

[0032] Therefore, the power taking device for the busbar bolt of the present application uses the pile head conductive rod of the pile head main body to detachably connect the power taking fitting, and uses the grip rod joint of the pile head main body to detachably connect the cable fixing fitting. The power taking fitting and the pile head conductive rod are detachably connected, so as to facilitate replacing power taking joints of different specifications and sizes according to the specifications and rated current-carrying capacity of the busbar bolt. The pile head conductive rod and the grip rod joint are rotationally electrically connected. A fastener for connecting the busbar bolt is provided at the other end of the power taking fitting. The power taking fitting is fixedly connected to the existing busbar bolt on the busbar by using the fastener, so that the power taking fitting is electrically connected to the busbar, and the power taking device can be connected to the busbar to realize power taking without punching holes in the busbar. The present application can realize connection with the busbar without punching holes in the busbar, and does not damage the insulation layer and the busbar structure of the busbar, greatly improving the installation efficiency of the connection between the power taking device and the busbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] Figure 1 It is an exploded view of the structure of the embodiment of the present application;

[0035] Figure 2 It is a cross-sectional view of the structure of the embodiment of the present application;

[0036] Figure 3 It is a cross-sectional view of the structure of the pile head main body of the embodiment of the present application;

[0037] Figure 4 It is a three-dimensional view of the structure of the power taking joint of the embodiment of the present application;

[0038] Figure 5 It is a cross-sectional view of the structure of the power taking joint of the embodiment of the present application;

[0039] Figure 6Structural sectional view of the power-taking joint of the embodiment of the present application installed on the pile head main body;

[0040] Figure 7 Structural sectional view of the cable joint of the embodiment of the present application;

[0041] Figure 8 Stereoscopic view of the structure of the embodiment of the present application installed on the busbar through the busbar bolt;

[0042] Figure 9 Structural sectional view of the embodiment of the present application installed on the busbar through the busbar bolt.

[0043] Reference numerals:

[0044] 1. Pile head main body; 2. Power-taking joint; 3. Cable joint; 4. Insulating wrench; 5. Busbar; 6. Busbar bolt; 7. Cable;

[0045] 101. Pile head conductive rod; 102. Grip rod joint; 103. Insertion hole; 104. First finger; 105. Positioning groove; 106. Rotating rod; 107. Limiting sleeve; 108. Limiting steel ball; 109. Unlock groove; 110. Limiting hole; 111. First spring; 112. Positioning pin; 113. First card slot; 114. Plug and unplug hole; 115. Third finger; 116. Second card slot; 117. Locking sleeve; 118. Second spring; 119. Second finger; 120. First insulating housing; 121. Second insulating housing;

[0046] 201. Power-taking fitting; 202. Plug; 203. Step hole; 204. Fastener; 205. Positioning boss; 206. Circular boss; 207. Locking groove; 208. Third insulating housing; 301. Cable fixing fitting; 302. Plug and unplug head; 303. Compression joint; 304. Locking pin; 305. Fourth insulating housing; 306. Waterproof joint. Detailed implementation manners

[0047] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0048] The embodiment of the present application provides a busbar bolt power taking device for a low-voltage distribution box, which can solve the problems in the related art that during emergency power supply or power taking operations, the connection cable end of the emergency equipment needs to be bolted to the mounting hole on the busbar or a hole needs to be drilled again on the busbar, resulting in a long operation time and damaging the insulation layer and the structure of the busbar.

[0049] See Figures 1 to 9 As shown, the embodiment of the present application provides a busbar bolt power taking device for a low-voltage distribution box, including:

[0050] A pile head main body 1, which includes a pile head conductive rod 101 and a grip rod joint 102 sleeved on one end of the pile head conductive rod 101 and rotatably connected to the pile head conductive rod 101. Both the pile head conductive rod 101 and the grip rod joint 102 are copper conductive bodies. The grip rod joint 102 is rotatably connected to the end of the pile head conductive rod 101, and the grip rod joint 102 extends obliquely towards the end of the pile head conductive rod 101. The pile head main body 1 is used to connect the power taking joint 2, and the grip rod joint 102 is used to connect the cable joint 3 to realize the electrical connection between the busbar 5 and the cable 7.

[0051] A power taking joint 2, which includes a power taking fitting 201. One end of the power taking fitting 201 is detachably connected to the pile head conductive rod 101, and the other end of the power taking fitting 201 is provided with a fastener 204 for connecting the busbar bolt 6. The power taking fitting 201 is a copper conductive body. One end of the power taking fitting 201 is detachably connected to the pile head conductive rod 101, which is convenient for selecting and replacing a compatible power taking joint 2 according to the specification of the busbar bolt 6 on the busbar 5. After the power taking fitting 201 is fastened to the busbar bolt 6, the power taking fitting 201 is in contact connection with the busbar 5 to realize the electrical connection between the power taking device and the busbar 5.

[0052] The fastener 204 of the power taking fitting 201 is used to connect the busbar bolt 6 on the busbar 5. The fastener 204 is preferably an internal thread processed on the power taking fitting 201, or a nut or a thread insert embedded in the power taking fitting 201. Multiple models of the power taking joint 2 can be set, such as a power taking joint 2 for matching an M8 bolt, a power taking joint 2 for matching an M10 bolt, a power taking joint 2 for matching an M12 bolt, or a power taking joint 2 for matching an M16 bolt, so as to improve the versatility of the power taking device and reduce the construction cost.

[0053] A cable joint 3, which includes a cable fixing fitting 301. One end of the cable fixing fitting 301 is detachably connected to the grip rod joint 102, and the other end of the cable fixing fitting 301 is provided with a crimping joint 303 for connecting the cable 7. The cable fixing fitting 301 is a copper conductive body. One end of the cable fixing fitting 301 is detachably connected to the grip rod joint 102, which is convenient for the pile head main body 1 to adapt to cables 7 with different cross-sections.

[0054] The compression joint 303 of the cable joint 3 is used to connect the cable. The compression joint 303 is a sleeve sleeved on the end of the cable 7. After the end of the cable 7 is inserted into the compression joint 303, the compression joint 303 and the cable 7 can be tightly pressed together by a hydraulic crimper to achieve the connection. The cross-sectional size of the cable joint 3 is specifically set according to the cross-sectional area of the connected cable 7. Multiple models of the cable joint 3 can be set, such as the cable joint 3 for connecting a 16-square cable, the cable joint 3 for connecting a 35-square cable, the cable joint 3 for connecting a 50-square cable, the cable joint 3 for connecting a 75-square cable, or the cable joint 3 for connecting a 95-square cable, etc., to improve the versatility of the power-taking device and reduce the construction cost.

[0055] In the low-voltage distribution box busbar bolt power-taking device according to the embodiment of the present application, the busbar conductive rod 101 of the pile head main body 1 is used to detachably connect the power-taking fitting 201, and the grip rod joint 102 of the pile head main body 1 is used to detachably connect the cable fixing fitting 301. The power-taking fitting 201 and the busbar conductive rod 101 are detachably connected, so as to facilitate replacing the power-taking joint 2 of different specifications and sizes according to the specifications and rated current-carrying capacity of the busbar bolt 6.

[0056] The busbar conductive rod 101 and the grip rod joint 102 are rotationally electrically connected. The power-taking fitting 201 and the busbar conductive rod 101 are detachably connected and rotate synchronously with the busbar conductive rod 101. A fastener 204 for connecting the busbar bolt 6 is provided at the other end of the power-taking fitting 201. The power-taking fitting 201 is fixedly connected to the existing busbar bolt 6 on the busbar 5 by the fastener 204, so that the power-taking fitting 201 is electrically connected to the busbar 5, and the power-taking device can be connected to the busbar 5 to realize power-taking without drilling holes in the busbar 5.

[0057] When the power-taking device of the present application is connected to the busbar 5, a tool is used to rotate the busbar conductive rod 101 to fixedly connect the fastener 204 of the power-taking fitting 201 to the existing busbar bolt 6 on the busbar 5, so as to realize the mutual contact connection between the power-taking fitting 201 and the busbar 5. The present application can realize the connection with the busbar 5 without drilling holes in the busbar 5, and does not damage the insulating layer and the structure of the busbar 5, greatly improving the installation efficiency of the connection between the power-taking device and the busbar 5.

[0058] In some alternative embodiments: Refer to Figures 3 to 6 and Figure 9 As shown, the embodiment of the present application provides a low-voltage distribution box busbar bolt power-taking device. The busbar conductive rod 101 of the power-taking device is a cylindrical hollow conductor. A plug-in hole 103 for connecting the power-taking fitting 201 is provided at the front end of the busbar conductive rod 101. The plug-in hole 103 is preferably a stepped hole with a large external diameter and a small internal diameter. One end of the power-taking fitting 201 is provided with a plug 202 inserted into the plug-in hole 103. The plug 202 of the power-taking fitting 201 is inserted into the plug-in hole 103 and rotates synchronously with the busbar conductive rod 101.

[0059] The other end of the power taking fitting 201 is provided with a stepped hole 203 for accommodating the busbar bolt 6, and the fastener 204 is located in the stepped hole 203. The fastener 204 is preferably, but not limited to, a threaded sleeve or internal thread embedded in the stepped hole 203 and threadedly connected with the busbar bolt 6. The stepped hole 203 is a stepped hole with a large outer aperture and a small inner aperture. The end of the stepped hole 203 with a large aperture is used to accommodate the nut of the busbar bolt 6, and the end of the stepped hole 203 with a small aperture is used to accommodate and fix the fastener 204. The fastener 204 is used to connect the busbar bolt 6 extending from the nut. When the length of the busbar bolt 6 is insufficient, it can be replaced with a longer busbar bolt 6.

[0060] In the embodiment of the present application, a plug hole 103 for connecting the power-taking fitting 201 is provided at the front end of the pile head conductive rod 101, and a plug 202 is provided at one end of the power-taking fitting 201 to be inserted into the plug hole 103. The plug 202 is inserted into the plug hole 103 to realize a detachable plug-in connection between the power-taking fitting 201 and the pile head conductive rod 101. A stepped hole 203 for accommodating the busbar bolt 6 is provided at the other end of the power-taking fitting 201, and a fastener 204 is located in the stepped hole 203. The stepped hole 203 is not only used to accommodate and fix the fastener 204, but also to accommodate the busbar bolt 6. After the fastener 204 is connected to the busbar bolt 6, the end face of the power-taking fitting 201 is reliably overlapped with the busbar 5 to realize electrical connection.

[0061] In some alternative embodiments: See Figures 1 to 6 As shown, the embodiment of the present application provides a low-voltage distribution box busbar bolt power extraction device, the plug 202 of the power extraction device is a cylindrical conductor, and a first groove for accommodating a first contact finger 104 is provided on the inner wall of the plug hole 103, and a first contact finger 104 is provided in the first groove for sliding contact with the outer wall of the plug 202. The first contact finger 104 is an elastic conductor with a silver-plated surface, and the first contact finger 104 is used for elastically contacting the plug 202 and the pile head conductive rod 101 to ensure reliable electrical connection between the plug 202 and the pile head conductive rod 101.

[0062] A positioning boss 205 is provided at one end of the power taking fitting 201 close to the plug 202, and a positioning groove 105 matching the positioning boss 205 is provided in the plug hole 103. The positioning boss 205 is located in the positioning groove 105 so that the power taking fitting 201 rotates synchronously with the pile head conductive rod 101. A rotating rod 106 for rotating the pile head conductive rod 101 is provided at one end of the pile head conductive rod 101 away from the power taking fitting 201, one end of the rotating rod 106 is fixedly connected to the pile head conductive rod 101, and a hexagonal head is provided at the other end of the rotating rod 106, and the hexagonal head is connected to an insulating wrench 4 for driving the pile head conductive rod 101 and the power taking fitting 201 to rotate.

[0063] In an embodiment of the present application, a positioning boss 205 is provided at one end of the power-taking fitting 201 close to the plug 202, and a positioning groove 105 matching the positioning boss 205 is provided in the insertion hole 103. After the power-taking fitting 201 is connected to the pile head conductive rod 101, the power-taking fitting 201 can rotate synchronously with the pile head conductive rod 101. A rotating rod 106 for rotating the pile head conductive rod 101 is provided at the end of the pile head conductive rod 101, and the rotating rod 106 is connected to an insulating wrench 4. By rotating the insulating wrench 4, the pile head conductive rod 101 is rotated forward and backward to connect or disassemble the fastener 204 of the power-taking fitting 201 and the bus bar bolt 6, reducing the working difficulty of connecting and disassembling the power-taking device and the bus bar 5 and improving the working efficiency.

[0064] In some alternative embodiments: Refer to Figures 3 to 6 As shown, an embodiment of the present application provides a power-taking device for a bus bar bolt of a low-voltage distribution box. The pile head main body 1 of the power-taking device further includes a limiting sleeve 107 sleeved on the front end of the pile head conductive rod 101, and a first spring 111 for driving the limiting sleeve 107 to move towards the power-taking fitting 201. The limiting sleeve 107 is an insulating member. The first spring 111 is preferably but not limited to a spiral spring sleeved between the pile head conductive rod 101 and the limiting sleeve 107. A plurality of limiting holes 110 accommodating limiting steel balls 108 are formed in the circumference of the pile head conductive rod 101, and the limiting holes 110 penetrate through the outer wall of the pile head conductive rod 101 and the insertion hole 103. An unlocking groove 109 matching the limiting steel balls 108 is formed in the inner wall of the limiting sleeve 107. A circular boss 206 is provided at one end of the power-taking fitting 201 close to the plug 202, and a locking groove 207 matching the limiting steel balls 108 is provided on the outer wall of the circular boss 206.

[0065] In the embodiment of the present application, when the first spring 111 drives the limiting sleeve 107 to move towards the direction close to the power-taking fitting 201, the limiting steel balls 108 enter the unlocking groove 109 from the locking groove 207. At this time, the power-taking fitting 201 and the pile head conductive rod 101 are in an unlocked state, and the power-taking fitting 201 and the pile head conductive rod 101 can be separated from each other. When the first spring 111 drives the limiting sleeve 107 to move away from the power-taking fitting 201, the limiting steel balls 108 enter the locking groove 207 from the unlocking groove 109. At this time, the power-taking fitting 201 and the pile head conductive rod 101 are in a locked state, and the power-taking fitting 201 and the pile head conductive rod 101 are connected to each other.

[0066] In some alternative embodiments: Refer to Figures 3 to 6As shown in the figure, an embodiment of the present application provides a power-taking device for the busbar bolt of a low-voltage distribution box. A positioning pin 112 is vertically provided on the side wall of the stud conductive rod 101 of the power-taking device. A first card slot 113 cooperating with the positioning pin 112 is formed on the limit sleeve 107. After the first card slot 113 cooperates with the positioning pin 112 to move the limit sleeve 107 in the direction close to the positioning pin 112, the limit steel ball 108 enters the locking groove 207. After the limit steel ball 108 enters the locking groove 207, the limit sleeve 107 is rotated to snap the positioning pin 112 into the first card slot 113, and the first card slot 113 is in a "Τ"-shaped or "Γ"-shaped structure.

[0067] In the embodiment of the present application, a positioning pin 112 is vertically provided on the side wall of the stud conductive rod 101, and a first card slot 113 cooperating with the positioning pin 112 is formed on the limit sleeve 107. The positioning pin 112 is used to cooperate with the first card slot 113 to keep the limit sleeve 107 in the locked position and prevent the first spring 111 from restoring the limit sleeve 107 to the unlocked position. When the limit sleeve 107 forces the limit steel ball 108 to enter the locking groove 207, the positioning pin 112 on the stud conductive rod 101 is snapped into the first card slot 113 by rotating the limit sleeve 107. The positioning pin 112 blocks the limit sleeve 107 from moving away from the power-taking fitting 201, and keeps the power-taking fitting 201 and the stud conductive rod 101 locked to each other.

[0068] In some alternative embodiments: Refer to Figure 2 、 Figure 3 and Figure 7 As shown in the figure, an embodiment of the present application provides a power-taking device for the busbar bolt of a low-voltage distribution box. An insertion and extraction hole 114 for connecting the cable fixing fitting 301 is formed at one end of the grip joint 102 of the power-taking device close to the cable fixing fitting 301. An insertion and extraction head 302 inserted into the insertion and extraction hole 114 is provided at one end of the cable fixing fitting 301. The insertion and extraction head 302 is inserted into the insertion and extraction hole 114 to realize the detachable insertion and extraction connection between the cable fixing fitting 301 and the grip joint 102. A locking pin 304 is vertically provided on the side wall of the insertion and extraction head 302, and a second card slot 116 for locking the insertion and extraction head 302 is provided at the orifice of the insertion and extraction hole 114. After the insertion and extraction head 302 is inserted into the insertion and extraction hole 114, the cable fixing fitting 301 is rotated to snap the locking pin 304 into the second card slot 116, and the second card slot 116 is in a "Τ"-shaped or "Γ"-shaped structure.

[0069] A locking sleeve 117 is sleeved on one end of the grip joint 102 close to the cable fixing fitting 301, and a second spring 118 for driving the locking sleeve 117 to move along the direction close to the cable fixing fitting 301 is provided. The second spring 118 drives the locking sleeve 117 to abut against the cable fixing fitting 301 to fix the locking pin 304 in the second card slot 116. An installation hole for inserting the stud conductive rod 101 is formed at one end of the grip joint 102, and a second groove for accommodating the second finger 119 is formed on the inner wall of the installation hole. The second groove is provided with a second finger 119 that slidably contacts the outer wall of the stud conductive rod 101. A third groove for accommodating the third finger 115 is formed on the inner wall of the insertion and extraction hole 114, and the third groove is provided with a third finger 115 that slidably contacts the outer wall of the plug 302.

[0070] In the embodiment of the present application, an insertion and extraction hole 114 for connecting the cable fixing fitting 301 is formed at one end of the grip joint 102 close to the cable fixing fitting 301. A plug 302 inserted into the insertion and extraction hole 114 is provided at one end of the cable fixing fitting 301. The plug 302 is inserted into the insertion and extraction hole 114 to realize the detachable insertion and extraction connection between the cable fixing fitting 301 and the grip joint 102. A locking pin 304 is vertically provided on the side wall of the plug 302, and a second card slot 116 for locking the plug 302 is provided at the orifice of the insertion and extraction hole 114. When the plug 302 is inserted into the insertion and extraction hole 114, the cable fixing fitting 301 is rotated to snap the locking pin 304 into the second card slot 116, so that the cable fixing fitting 301 and the grip joint 102 are locked to each other to prevent the reliability of the connection between the cable fixing fitting 301 and the grip joint 102.

[0071] In the embodiment of the present application, a locking sleeve 117 is sleeved on one end of the grip joint 102 close to the cable fixing fitting 301, and a second spring 118 for driving the locking sleeve 117 to move along the direction close to the cable fixing fitting 301 is provided. The second spring 118 forces the locking sleeve 117 to press against the cable fixing fitting 301, so that the locking pin 304 and the second card slot 116 are kept in the locked position. The stud conductive rod 101 and the grip joint 102 are in contact connection with each other through the second finger 119. The second finger 119 is an elastic conductive body with a silver-plated surface. The second finger 119 is used for elastically contacting the grip joint 102 and the stud conductive rod 101 to ensure reliable electrical connection between the grip joint 102 and the stud conductive rod 101. The plug 302 and the grip joint 102 are in contact connection with each other through the third finger 115. The third finger 115 is an elastic conductive body with a silver-plated surface. The third finger 115 is used for elastically contacting the plug 302 and the grip joint 102 to ensure reliable electrical connection between the plug 302 and the grip joint 102.

[0072] In some alternative embodiments: Refer to Figures 3 to 7As shown in the figure, an embodiment of the present application provides a power-taking device for the busbar bolt of a low-voltage distribution box. The pile head main body 1 of the power-taking device further includes a first insulating housing 120 wrapped around the outer wall of the pile head conductive rod 101, and a second insulating housing 121 wrapped around the outer wall of the grip rod joint 102. The overlapping part between the second insulating housing 121 and the first insulating housing 120 is mutually attached and rotatably connected. The power-taking joint 2 further includes a third insulating housing 208 wrapped around the outer wall of the power-taking fitting 201. The third insulating housing 208 does not need to wrap the plug 202 and the circular boss 206. The cable joint 3 further includes a fourth insulating housing 305 wrapped around the outer wall of the cable fixing fitting 301. The fourth insulating housing 305 does not need to wrap the plug-in and unplugging head 302. A waterproof joint 306 is threadedly connected to the end of the fourth insulating housing 305. The waterproof joint 306 is used to sleeve on the cable 7 to ensure the waterproof performance between the waterproof joint 306 and the cable 7.

[0073] In the present application, a first insulating housing 120 is wrapped around the outer wall of the pile head conductive rod 101, a second insulating housing 121 is wrapped around the outer wall of the grip rod joint 102, a third insulating housing 208 is wrapped around the outer wall of the power-taking fitting 201, and a fourth insulating housing 305 is wrapped around the outer wall of the cable fixing fitting 301, so that the exposed surfaces of all conductive parts of the power-taking device are insulated, enabling the power-taking device to perform live operations and ensuring the safety of operators.

[0074] Working principle

[0075] An embodiment of the present application provides a power-taking device for the busbar bolt of a low-voltage distribution box. Since the power-taking device for the busbar bolt of the low-voltage distribution box of the present application is provided with a pile head main body 1, the pile head main body 1 includes a pile head conductive rod 101, and a grip rod joint 102 sleeved on one end of the pile head conductive rod 101 and rotatably connected to the pile head conductive rod 101; a power-taking joint 2, the power-taking joint 2 includes a power-taking fitting 201, one end of the power-taking fitting 201 is detachably connected to the pile head conductive rod 101, and the other end is provided with a fastener 204 for connecting the busbar bolt 6; a cable joint 3, the cable joint 3 includes a cable fixing fitting 301, one end of the cable fixing fitting 301 is detachably connected to the grip rod joint 102, and the other end is provided with a crimping head 303 for connecting the cable 7.

[0076] Therefore, the power-taking device for the busbar bolt of the present application uses the pile head conductive rod 101 of the pile head main body 1 to detachably connect the power-taking fitting 201, and uses the grip rod joint 102 of the pile head main body 1 to detachably connect the cable fixing fitting 301. The power-taking fitting 201 and the pile head conductive rod 101 are detachably connected, so as to facilitate replacing the power-taking joint 2 with different specifications and sizes according to the specifications and rated current-carrying capacity of the busbar bolt 6.

[0077] The pile head conductive rod 101 and the grip rod joint 102 are rotationally electrically connected. At the other end of the power take-off fitting 201, there is a fastener 204 for connecting the busbar bolt 6. The power take-off fitting 201 is fixedly connected to the existing busbar bolt 6 on the busbar 5 by using the fastener 204, so that the power take-off fitting 201 is electrically connected to the busbar 5, and the power take-off device can be connected to the busbar 5 to obtain power without drilling holes in the busbar 5. In this application, the connection with the busbar 5 can be achieved without drilling holes in the busbar 5, and the insulating layer and the structure of the busbar 5 are not damaged, greatly improving the installation efficiency of the connection between the power take-off device and the busbar 5.

[0078] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0079] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0080] The above description is only the specific implementation manners of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A busbar bolt power taking device for a low-voltage distribution box, characterized in that Comprising: A pile head main body (1), the pile head main body (1) includes a pile head conductive rod (101), and a grip rod joint (102) sleeved on one end of the pile head conductive rod (101) and rotatably connected to the pile head conductive rod (101); A power-taking joint (2), the power-taking joint (2) includes a power-taking fitting (201), one end of the power-taking fitting (201) is detachably connected to the pile head conductive rod (101), and the other end is provided with a fastener (204) for connecting a bus bar bolt (6); A cable joint (3), the cable joint (3) includes a cable fixing fitting (301), one end of the cable fixing fitting (301) is detachably connected to the grip rod joint (102), and the other end is provided with a crimping joint (303) for connecting a cable (7); The pile head conductive rod (101) is a cylindrical conductor, the front end of the pile head conductive rod (101) is provided with a plugging hole (103) for connecting the power-taking fitting (201), one end of the power-taking fitting (201) is provided with a plug (202) inserted into the plugging hole (103), and the plug (202) of the power-taking fitting (201) is inserted into the plugging hole (103) and rotates synchronously with the pile head conductive rod (101); The other end of the power-taking fitting (201) is provided with a stepped hole (203) for accommodating the bus bar bolt (6), the fastener (204) is located in the stepped hole (203), and the fastener (204) is a thread insert or internal thread embedded in the stepped hole (203) and threadedly connected to the bus bar bolt (6); The pile head main body (1) further includes a limit sleeve (107) sleeved on the front end of the pile head conductive rod (101), and a first spring (111) for driving the limit sleeve (107) to move towards the power-taking fitting (201); A plurality of limit holes (110) for accommodating limit steel balls (108) are formed in the circumference of the pile head conductive rod (101), and an unlocking groove (109) for cooperating with the limit steel balls (108) is formed in the inner wall of the limit sleeve (107); One end of the power-taking fitting (201) close to the plug (202) is provided with a circular boss (206), and a locking groove (207) for cooperating with the limit steel balls (108) is formed on the outer wall of the circular boss (206); One end of the grip rod joint (102) close to the cable fixing fitting (301) is provided with a plugging and unplugging hole (114) for connecting the cable fixing fitting (301), and one end of the cable fixing fitting (301) is provided with a plugging and unplugging head (302) inserted into the plugging and unplugging hole (114); A locking pin (304) is vertically provided on the side wall of the plugging and unplugging head (302), and a second card slot (116) for locking the plugging and unplugging head (302) is provided at the orifice of the plugging and unplugging hole (114); After the plugging and unplugging head (302) is inserted into the plugging and unplugging hole (114), the cable fixing fitting (301) is rotated to lock the locking pin (304) in the second card slot (116), and the second card slot (116) is of a "Τ" - shaped or "Γ" - shaped structure.

2. The low-voltage distribution box busbar bolt power-taking device according to claim 1, characterized in that: The plug (202) is a cylindrical conductor. A first groove for accommodating a first finger (104) is formed on the inner wall of the insertion hole (103), and a first finger (104) that is in sliding contact with the outer wall of the plug (202) is provided in the first groove; One end of the power-taking fitting (201) close to the plug (202) is provided with a positioning boss (205). A positioning groove (105) that cooperates with the positioning boss (205) is provided in the insertion hole (103). The positioning boss (205) is located in the positioning groove (105) so that the power-taking fitting (201) rotates synchronously with the pile head conductive rod (101).

3. The low-voltage distribution box busbar bolt power-taking device according to claim 1 or 2, characterized in that: One end of the pile head conductive rod (101) away from the power-taking fitting (201) is provided with a rotating rod (106) for rotating the pile head conductive rod (101). One end of the rotating rod (106) is fixedly connected to the pile head conductive rod (101). The other end of the rotating rod (106) is provided with a hexagonal head, and an insulating wrench (4) for driving the pile head conductive rod (101) and the power-taking fitting (201) to rotate is connected to the hexagonal head.

4. The low-voltage distribution box busbar bolt power-taking device according to claim 1, characterized in that: A positioning pin (112) is vertically provided on the side wall of the pile head conductive rod (101). A first card slot (113) that cooperates with the positioning pin (112) is formed on the limit sleeve (107). The first card slot (113) cooperates with the positioning pin (112) so that the limit sleeve (107) moves along the direction approaching the positioning pin (112) and then locks the limit steel ball (108) in the locking groove (207); After the limit steel ball (108) is locked in the locking groove (207), the limit sleeve (107) is rotated to snap the positioning pin (112) into the first card slot (113). The first card slot (113) is of a "Τ" - shaped or "Γ" - shaped structure.

5. The low-voltage distribution box busbar bolt power-taking device according to claim 1, characterized in that: One end of the grip rod joint (102) close to the cable fixing fitting (301) is sleeved with a locking sleeve (117), and a second spring (118) for driving the locking sleeve (117) to move along the direction approaching the cable fixing fitting (301). The second spring (118) drives the locking sleeve (117) to abut against the cable fixing fitting (301) to fix the locking pin (304) in the second card slot (116).

6. The low-voltage distribution box busbar bolt power-taking device according to claim 1, characterized in that: One end of the grip rod joint (102) is provided with an installation hole for inserting the pile head conductive rod (101). A second groove for accommodating a second finger (119) is formed on the inner wall of the installation hole, and a second finger (119) that is in sliding contact with the outer wall of the pile head conductive rod (101) is provided in the second groove; On the inner wall of the insertion and extraction hole (114), a third groove for accommodating the third finger (115) is formed, and a third finger (115) that slidably contacts the outer wall of the plug-in head (302) is provided in the third groove.

7. A busbar bolt power taking device for a low-voltage distribution box according to claim 1, wherein: The pile head body (1) further includes a first insulating housing (120) covering the outer wall of the pile head conductive rod (101), and a second insulating housing (121) covering the outer wall of the grip rod joint (102); The power taking joint (2) further includes a third insulating housing (208) covering the outer wall of the power taking fitting (201); The cable joint (3) further includes a fourth insulating housing (305) covering the outer wall of the cable fixing fitting (301), and a waterproof joint (306) is threadedly connected to the end of the fourth insulating housing (305).

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