Installation method of cable grounding box and its grounding components

Abstract

The present invention discloses a cable grounding box and a method for installing its grounding assembly, which relates to the field of cable grounding technology. The cable grounding box comprises: a box body, comprising a first side panel and a second side panel, the inner side wall of the first side panel is provided with a first support portion, and the inner side wall of the second side panel is provided with a second support portion; a first connecting assembly, comprising an insulating first isolator, the first isolator comprising a first limiting portion and a first positioning portion; a second connecting assembly, comprising an insulating second isolator and an insulating pressure plate; a grounding assembly, which is arranged in the box body, the grounding assembly comprises an insulating plate, the first side end of the insulating plate is provided with a first tenon joint, the second side end of the insulating plate is provided with a second tenon joint, the first positioning portion is passed through the first tenon joint, and the second positioning portion is passed through the second tenon joint; wherein the pressure plate presses the second side end of the insulating plate against the first limiting portion. The cable grounding box of the present invention can facilitate the installation of the grounding assembly and has high safety.

Description

Technical Field

[0001] The present invention relates to the technical field of cable grounding, and in particular to an installation method of a cable grounding box and a grounding assembly thereof. Background Art

[0002] During the laying process of high-voltage cables, a grounding system will be set up at the corresponding position to conduct the induced voltage generated during the operation of the cable into the earth, eliminating the adverse effects of overvoltage and overcurrent on the operation of the cable line. The grounding system is mainly composed of a grounding box, grounding cable, return cable, etc.

[0003] In the related art, the grounding components in the grounding box are fixed to the box side panels with metal bolts. When installing the grounding components, one person needs to hold the grounding components while another person tightens the bolts, which is troublesome to operate. In addition, the metal bolts also increase safety hazards. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a cable grounding box that can facilitate the installation of grounding components and has high safety.

[0005] The present invention also provides a method for installing a grounding assembly having the cable grounding box.

[0006] According to the first aspect of the present invention, the cable grounding box of the embodiment includes: a box body, including a first side panel, and a second side panel spaced apart from and opposite to the first side panel, the inner side wall of the first side panel is provided with a first support portion, and the inner side wall of the second side panel is provided with a second support portion; a first connecting component, including an insulating first isolating member, the first isolating member covers the first support portion and is supported by the first support portion, the first isolating member includes a first limiting portion, and a first positioning portion connected to the first limiting portion and arranged with the first limiting portion along the width direction of the first side panel; a second connecting component, including an insulating second isolating member and an insulating pressure plate, the second isolating member covers the The second supporting part is supported by the second supporting part, the second isolating member includes a second limiting part arranged opposite to the first limiting part, and a second positioning part connected to the second limiting part and arranged opposite to the first positioning part; a grounding component is arranged in the box body, the grounding component includes an insulating plate and a grounding mechanism arranged on the insulating plate, the first side end of the insulating plate is provided with a first tenon interface, the second side end of the insulating plate is provided with a second tenon interface, the first positioning part is passed through the first tenon interface, and the second positioning part is passed through the second tenon interface; wherein, the pressing plate is arranged on the second isolating member and presses the second side end of the insulating plate against the first limiting part.

[0007] A method for installing a grounding assembly according to a second embodiment of the present invention, applied to a cable grounding box of the above embodiment, includes:

[0008] Inserting the first side end of the insulating plate of the grounding assembly obliquely into the first isolating member until the first tenon joint is inserted into the first positioning portion, wherein when the first side end of the insulating plate is obliquely inserted into the first isolating member, the distance between the second side end of the insulating plate and the second isolating member along the width direction of the second side plate is greater than the distance between the first side end of the insulating plate and the first isolating member along the width direction of the first side plate;

[0009] During the process of the first tenon joint being inserted into the first positioning portion, the second side end of the insulating plate is deflected toward the second isolating member until the second tenon joint is inserted into the second positioning portion;

[0010] The second side end of the insulating plate is pressed against the second limiting portion by using the pressing plate.

[0011] The installation method of the cable grounding box and the grounding assembly thereof according to the embodiment of the present invention has at least the following beneficial effects:

[0012] When assembling the cable grounding box of the present invention, first, the first side end of the insulating plate of the grounding assembly is inserted obliquely into the first connecting assembly until the first mortise joint is inserted by the first positioning portion. It should be noted that when the first side end of the insulating plate is inserted obliquely into the first connecting assembly, the oblique state of the insulating plate is as follows: the distance between the second side end of the insulating plate and the second limiting portion along the width direction of the second side plate is greater than the distance between the first side end of the insulating plate and the first limiting portion along the width direction of the first side plate, that is, the second side end of the insulating plate is closer to the front than the first side end. During the process of the first mortise joint being inserted by the first positioning portion, the second side end of the insulating plate can be deflected toward the second limiting portion until the second mortise joint is inserted by the second positioning portion. Then, the second side end of the insulating plate is pressed by a pressure plate, thereby limiting the pressure plate from being dislodged from the direction away from the second limiting portion, thereby fixing the second side end of the insulating plate. During the process of assembling the grounding assembly in the cable grounding box of the present invention, bolt-free assembly is possible, and the entire operation can be completed independently by a single worker, which is simple to operate.

[0013] It should be noted that the side panel assembly of the cable grounding box of the present invention can be made of stainless steel, and the first support portion and the second support portion are integrally formed on the inner walls of the first side panel and the second side panel, respectively, and are also made of stainless steel (capable of conducting electricity) and have high strength. By using the first isolating member and the second isolating member to cover the first support portion and the second support portion respectively, the safety hazard caused by the first support portion and the second support portion being too close to the grounding mechanism can be reduced.

[0014] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0016] Figure 1 This is a structural schematic diagram of a cable grounding box according to an embodiment of the present invention;

[0017] Figure 2 This is a partial structural diagram of a cable grounding box according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of a partial cross-sectional structure of a box body according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of a partial cross-sectional structure of a box body according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the assembly structure of a grounding component, a first connecting component, and a second connecting component according to an embodiment of the present invention;

[0021] Figure 6 for Figure 5 Another perspective of the picture;

[0022] Figure 7 A cross-sectional view of an assembly structure of an insulating plate, a first connecting assembly, and a second connecting assembly according to an embodiment of the present invention;

[0023] Figure 8 This is a schematic structural diagram of a first isolation member according to an embodiment of the present invention;

[0024] Figure 9 This is a schematic partial cross-sectional view of the first connecting assembly according to an embodiment of the present invention;

[0025] Figure 10 This is a schematic structural diagram of a second isolating member and a second positioning block according to an embodiment of the present invention;

[0026] Figure 11 A schematic diagram of a partial cross-sectional structure of a second isolating member and a second positioning block according to an embodiment of the present invention;

[0027] Figure 12 This is a schematic structural diagram of a pressing plate according to an embodiment of the present invention;

[0028] Figure 13 This is a schematic structural diagram of a mortise and tenon post according to an embodiment of the present invention;

[0029] Figure 14 This is a schematic structural diagram of a cable and grounding assembly according to an embodiment of the present invention;

[0030] Figure 15 This is a schematic structural diagram of an outer conductor connection portion according to an embodiment of the present invention;

[0031] Figure 16 This is a schematic cross-sectional view of a cable and grounding assembly according to an embodiment of the present invention;

[0032] Figure 17 This is a schematic structural diagram of an inner conductor connection structure according to an embodiment of the present invention;

[0033] Figure 18 A schematic diagram of a partial structure of an inner conductor connection structure according to an embodiment of the present invention;

[0034] Figure 19 This is a schematic structural diagram of a clamping ring according to an embodiment of the present invention;

[0035] Figure 20 This is a schematic structural diagram of an insulation cover according to an embodiment of the present invention;

[0036] Figure 21 This is a schematic structural diagram of an outer conductor connection structure according to an embodiment of the present invention;

[0037] Figure 22 This is a schematic diagram of the internal structure of a cable grounding box according to an embodiment of the present invention;

[0038] Figure 23 This is a schematic cross-sectional structural diagram of a box body according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] like Figure 1 、 Figure 2 As shown, a cable grounding box according to an embodiment of the present invention includes a box body 100 and a grounding assembly 200 disposed inside the box body 100 .

[0040] Combine Figure 1 and Figure 2 The box body 100 includes a side panel assembly 110, which includes a plurality of connected side panels. Specifically in this embodiment, the side panel assembly 110 includes a rear side panel 111 and two side panels. The rear ends of the two side panels are respectively connected to the two opposite ends of the rear side panel 111 in the horizontal direction, and the two side panels are spaced apart and arranged opposite to each other.

[0041] Among the two side panels, one is a first side panel 112 and the other is a second side panel 113 . The first side panel 112 and the second side panel 113 are spaced apart and arranged opposite to each other.

[0042] Combine Figure 2 、 Figure 5 and Figure 6 It should be noted that the cable grounding box also includes a first connecting component 114 and a second connecting component 115. The first connecting component 114 is arranged on the inner wall of the first side plate 112, and the second connecting component 115 is arranged on the inner wall of the second side plate 113. The two side ends of the grounding component 200 are respectively connected to the first connecting component 114 and the second connecting component 115 to achieve installation.

[0043] Combine Figure 2 、 Figure 3 and Figure 5 Furthermore, the inner wall of the first side panel 112 is provided with a first support portion 1121, the inner wall of the second side panel 113 is provided with a second support portion 1131, the first connecting component 114 is supported on the first support portion 1121, and the second connecting component 115 is supported on the second support portion 1131.

[0044] Combine Figure 3 、 Figure 5 as well as Figure 8 The first connecting component 114 includes an insulating first isolating member 1141, which covers the first supporting portion 1121 and is supported by the first supporting portion 1121; it can be understood that the first isolating member 1141 is made of an insulating material, such as rubber wood or insulating plastic, and the first isolating member 1141 can cover the first supporting portion 1121.

[0045] Furthermore, the first supporting portion 1121 is provided with a first mounting hole 11211, and a first elastic supporting member (not shown, refer to Figure 4 As shown in the figure), a first avoidance hole 11414 is provided on one side of the first isolating member 1141 close to the first side plate 112, and the first supporting portion 1121 is passed through the first avoidance hole 11414 and causes the first elastic supporting member to resist the first isolating member 1141.

[0046] Specifically, the first mounting hole 11211 is opened at the top of the first support portion 1121, the first elastic supporting member is arranged in the first mounting hole 11211, and at least part of the first elastic supporting member protrudes from the first mounting hole 11211, the first support portion 1121 is passed through the first avoidance hole 11414 and the first elastic supporting member is supported against the first isolation member 1141. In this way, the installation reliability of the first isolation member 1141 can be improved and the risk of the first isolation member 1141 falling off can be reduced.

[0047] More specifically, the first elastic supporting member includes a first spring arranged in the first mounting hole 11211 and a first supporting ball arranged on the first spring. The first supporting ball extends out of the first mounting hole 11211 and is used to resist the first isolation member 1141.

[0048] Combine Figure 8 and Figure 9 Furthermore, a first positioning block 1142 is fixedly provided in the first avoidance hole 11414. The first positioning block 1142 is a hollow structure, and a first positioning hole 11421 is provided on the inner top wall of the first positioning block 1142. Figure 3 and Figure 9 The first supporting portion 1121 extends into the first positioning block 1142 , and the first holding ball extends into the first positioning hole 11421 .

[0049] It should be noted that the first spring and the first holding ball are connected to each other, and the first spring is connected to the first support portion 1121. The first holding ball extends into the first positioning hole 11421, which can reduce the risk of the first connecting component 114 falling off from the first support portion 1121.

[0050] The first positioning block 1142 may be made of a metal material with relatively high strength, such as steel. It should be noted that the first positioning block 1142 is disposed in the first avoidance hole 11414 and is also isolated by the first isolation member 1141 .

[0051] Combine Figure 3 、 Figure 6 as well as Figure 10 The second connecting component 115 includes an insulating second isolating member 1151, which covers the second supporting portion 1131 and is supported by the second supporting portion 1131; it can be understood that the second isolating member 1151 is made of an insulating material, such as rubber wood or insulating plastic, and the second isolating member 1151 can cover the second supporting portion 1131.

[0052] Combine Figure 3 、 Figure 4 and Figure 11 It can be understood that the second support portion 1131 is provided with a second mounting hole 11311, a second elastic supporting member 1132 is provided in the second mounting hole 11311, and a second avoidance hole 11514 is provided on the side of the second isolation member 1151 close to the second side plate 113, and the second support portion 1131 is passed through the second avoidance hole 11514 and makes the second elastic supporting member 1132 resist against the second isolation member 1151.

[0053] Specifically, the second mounting hole 11311 is opened at the top of the second support portion 1131, the second elastic supporting member 1132 is arranged in the second mounting hole 11311, and at least part of the second elastic supporting member 1132 protrudes from the second mounting hole 11311, the second support portion 1131 is passed through the second avoidance hole 11514 and the second elastic supporting member 1132 is supported on the second isolation member 1151. In this way, the installation reliability of the second isolation member 1151 can be improved and the risk of the second isolation member 1151 falling off can be reduced.

[0054] More specifically, the second elastic supporting member 1132 includes a second spring 11321 arranged in the second mounting hole 11311, and a second supporting ball 11322 arranged on the second spring 11321. The second supporting ball 11322 extends out of the second mounting hole 11311, and the second supporting ball 11322 is used to resist the second isolation member 1151.

[0055] Furthermore, a second positioning block 1154 is fixedly installed in the second avoidance hole 11514. The second positioning block 1154 is a hollow structure, and the inner top wall of the second positioning block 1154 is provided with a second positioning hole 11541. The second support portion 1131 extends into the second positioning block 1154, and the second supporting ball 11322 extends into the second positioning hole 11541.

[0056] It should be noted that the second spring 11321 and the second holding ball 11322 are connected to each other, and the second spring 11321 is connected to the second support portion 1131. The second holding ball 11322 extends into the second positioning hole 11541, which can reduce the risk of the second connecting component 115 falling off the second support portion 1131.

[0057] The second positioning block 1154 can be made of a metal material with relatively high strength, such as steel. It should be noted that the second positioning block 1154 is disposed in the second avoidance hole 11514 and is also isolated by the second isolation member 1151 .

[0058] Combine Figure 5 、 Figure 7 and Figure 8 The first isolating member 1141 includes a first limiting portion 11411 and a first positioning portion 11412 connected to the first limiting portion 11411 and arranged along the width direction of the first side plate 112 with the first limiting portion 11411.

[0059] Specifically, the first limiting portion 11411 extends vertically, and the first positioning portion 11412 is connected to the front side of the first limiting portion 11411 , wherein the first limiting portion 11411 protrudes further from the inner wall of the first side plate 112 relative to the first positioning portion 11412 .

[0060] Combine Figure 6 、 Figure 7 and Figure 10 The second isolating member 1151 includes a second limiting portion 11511 disposed opposite to the first limiting portion 11411 , and a second positioning portion 11512 connected to the second limiting portion 11511 and disposed opposite to the first positioning portion 11412 .

[0061] Specifically, the second limiting portion 11511 extends vertically, and the second limiting portion 11511 is spaced apart from and arranged opposite to the first limiting portion 11411 in parallel; the second positioning portion 11512 is connected to the front side of the second limiting portion 11511 and is arranged opposite to the first positioning portion 11412; wherein the second limiting portion 11511 protrudes further from the inner wall of the second side panel 113 than the second positioning portion 11512.

[0062] Combine Figure 1 and Figure 2 It should be noted that the box body 100 further includes a box door 130, which is located in front of the rear side plate 111, wherein the side where the box door 130 is located is the front side, and the side where the rear side plate 111 is located is the rear side.

[0063] like Figure 2 As shown, the grounding assembly 200 is disposed in the box 100. Figure 14 As shown, the grounding assembly 200 includes an insulating plate 210 and a grounding mechanism 220 provided on the insulating plate 210. The first side end of the insulating plate 210 is provided with a first tenon interface 211, and the second side end of the insulating plate 210 is provided with a second tenon interface 212. Figure 5 、 Figure 7 and Figure 14 The first side end of the insulating plate 210 is arranged toward the first connecting component 114 and the first positioning portion 11412 is passed through the first tenon interface 211. The second side end of the insulating plate 210 is arranged toward the second connecting component 115 and the second positioning portion 11512 is passed through the second tenon interface 212.

[0064] Specifically, the insulating plate 210 is used to support the grounding mechanism 220, which is used to connect to the cable 300. The two side ends of the insulating plate 210 are respectively connected to the first connecting assembly 114 and the second connecting assembly 115. The insulating plate 210 includes two opposing sides, one of which is a first side end and the other is a second side end. A first tenon joint 211 is formed on the first side end of the insulating plate 210, and a second tenon joint 212 is formed on the second side end of the insulating plate 210. The first side end of the insulating plate 210 is positioned toward the first connecting assembly 114, with a first positioning portion 11412 extending through the first tenon joint 211. In this manner, the first positioning portion 11412 can limit the vertical position of the first side end of the insulating plate 210. Furthermore, the first limiting portion 11411 can limit the first side end of the insulating plate 210 along one side of the width of the first side plate 112. The second side end of the insulating plate 210 is arranged toward the second connecting component 115 and the second positioning portion 11512 is passed through the second tenon joint 212. In this way, under the action of the second positioning portion 11512, the second side end of the insulating plate 210 can be limited in the upper and lower directions. In addition, under the action of the second limiting portion 11511, the second side end of the insulating plate 210 can be limited along one side of the width direction of the second side plate 113.

[0065] Furthermore, the second connecting component 115 also includes an insulating pressure plate 1152, which is made of insulating material, such as rubber wood or insulating plastic. The pressure plate 1152 is arranged on the second isolation member 1151 and squeezes the second side end of the insulating plate 210 to the first limiting portion 11411.

[0066] It can be understood that the pressing plate 1152 is disposed on the second isolation member 1151 , and the pressing plate 1152 can press the second side end of the insulating plate 210 tightly, so that the entire insulating plate 210 is installed.

[0067] When assembling the cable grounding box of the present invention, first, the first side end of the insulating plate 210 of the grounding assembly 200 is obliquely inserted into the first connecting assembly 114 until the first mortise interface 211 is inserted into the first positioning portion 11412; it should be noted that when the first side end of the insulating plate 210 is obliquely inserted into the first connecting assembly 114, the oblique state of the insulating plate 210 is: the distance between the second side end of the insulating plate 210 and the second limiting portion 11511 along the width direction of the second side plate 113 is greater than the distance between the first side end of the insulating plate 210 and the first limiting portion 11411 along the width direction of the second side plate 113. The first side panel 112 has a greater width, meaning the second side end of the insulating plate 210 is positioned further forward than the first side end. As the first positioning portion 11412 inserts the first tenon joint 211, the second side end of the insulating plate 210 can be deflected toward the second limiting portion 11511 until the second tenon joint 212 is inserted into the second positioning portion 11512. The pressing plate 1152 then presses against the second side end of the insulating plate 210, preventing the pressing plate 1152 from dislodging from the direction away from the second limiting portion 11511, thereby securing the second side end of the insulating plate 210. In the cable grounding box of the present invention, bolt-free assembly is possible during the assembly of the grounding assembly 200 within the box body 100. The entire operation can be completed independently by a single operator, resulting in simple operation.

[0068] It should be noted that the side panel assembly 110 of the cable grounding box of the present invention can be made of stainless steel, and the first support portion 1121 and the second support portion 1131 are integrally formed on the inner walls of the first side panel 112 and the second side panel 113, respectively, and are also made of stainless steel (capable of conducting electricity) and have high strength. By using the first isolation member 1141 and the second isolation member 1151 to cover the first support portion 1121 and the second support portion 1131 respectively, the safety hazard caused by the first support portion 1121 and the second support portion 1131 being too close to the grounding mechanism 220 can be reduced.

[0069] It is understandable that the traditional way of fixing the grounding assembly 200 in the box 100 is: a metal bracket is set on the side panel, and then the insulating plate 210 is fixed to the metal bracket with a metal bolt. If the metal bolt and the metal bracket are too close to the grounding mechanism 220 on the insulating plate 210, there is a greater risk of arc discharge. Therefore, in order to ensure that there is a large insulation distance between the metal bolt and the metal bracket and the grounding mechanism 220, the width of the box 100 needs to be designed to be larger. In this application, the use of the relevant metal bolts is eliminated, and the first supporting part 1121 and the second supporting part 1131 are respectively covered by the first isolating part 1141 and the second isolating part 1151, which can reduce the safety hazards caused by the first supporting part 1121 and the second supporting part 1131 being too close to the grounding mechanism 220. Therefore, the width of the box 100 can be reduced.

[0070] In addition, the present application eliminates the need to use related metal bolts to fix the grounding assembly 200, thereby avoiding the problem that the sharp corners and sharp edges of the metal bolts are ionized by the strong electric field, resulting in corona discharge. Corona discharge will trigger a series of chemical reactions, producing highly corrosive substances such as ozone, nitric oxide, and nitrogen dioxide, which can easily cause corrosion of the conductor of the high-voltage grounding assembly 200, reduce the conductivity of the conductor, and even cause heating failure of the conductor. In addition, corona discharge will generate high-frequency pulse current, and the various high-order harmonics contained in it will cause radio interference to the intelligent processing device of the grounding box itself and even other surrounding equipment; corona discharge will consume energy, increase the power loss of the transmission line, and cause Unnecessary energy loss in the power system affects the transmission efficiency; it also avoids the problem of charge accumulation. Specifically, if the charge on the metal bolt cannot be released in time, it may reach a certain potential. When the potential is high enough, electrostatic discharge will occur, and this discharge may ignite the combustible mixture formed by flammable and explosive gases, suspended dust and air, thereby causing fires or even explosions, seriously threatening the safety of the cable operation line; it also avoids the problem of electric field concentration. Specifically, the sharp corners of the suspended metal bolts will cause the electric field to concentrate, causing the electric field strength to increase in this area. When the electric field strength exceeds the gas breakdown voltage, arc discharge may occur, causing equipment failure or damage.

[0071] Combine Figure 7 and Figure 8 The first isolating member 1141 further includes an anti-slip portion 11413 connected to the first positioning portion 11412 away from the first limiting portion 11411 , and the first side end of the insulating plate 210 is limited between the first limiting portion 11411 and the anti-slip portion 11413 .

[0072] It can be understood that the top of the anti-slip portion 11413 is higher than the top of the first positioning portion 11412, and / or the bottom of the anti-slip portion 11413 is lower than the bottom of the first positioning portion 11412; when the first mortise joint 211 is inserted into the first positioning portion 11412, the first limiting portion 11411 and the anti-slip portion 11413 can limit the first side end of the insulating plate 210 from moving along the width direction of the first side plate 112. In this way, the first connecting component 114 can be used to limit the front and rear, up and down directions of the first side end of the insulating plate 210.

[0073] Furthermore, the distance between the side of the anti-slip portion 11413 near the first limiting portion 11411 and the side of the first limiting portion 11411 near the anti-slip portion 11413 is equal to the thickness of the insulating plate 210. This reduces the risk of the first side end of the insulating plate 210 becoming loose between the first limiting portion 11411 and the anti-slip portion 11413. Of course, to facilitate insertion of the first side end of the insulating plate 210 between the first limiting portion 11411 and the anti-slip portion 11413, the distance between the side of the anti-slip portion 11413 near the first limiting portion 11411 and the side of the first limiting portion 11411 near the anti-slip portion 11413 may be slightly greater than the thickness of the insulating plate 210.

[0074] Combine Figure 7 and Figure 12 In some embodiments, a third mortise joint 11521 is provided on one side of the pressure plate 1152 close to the second positioning portion 11512 , and at least a portion of the second positioning portion 11512 is passed through the third mortise joint 11521 and abuts against the mouth wall of the third mortise joint 11521 .

[0075] Furthermore, the upper and lower side walls of the third tenon joint 11521 respectively abut against the upper and lower side walls of the second positioning portion 11512. In this way, the second positioning portion 11512 can also limit the upward and downward movement of the pressing plate 1152. Furthermore, this method can also clamp the pressing plate 1152 to the second positioning portion 11512, thereby achieving connection between the pressing plate 1152 and the second positioning portion 11512, and allowing the pressing plate 1152 to maintain abutment against the second side end of the insulating plate 210.

[0076] The distance between the upper side wall and the lower side wall of the third tenon joint 11521 gradually increases along the direction from the first side plate 112 to the second side plate 113 .

[0077] It can be understood that when assembling the pressure plate 1152, the assembly is carried out from the first side panel 112 to the second side panel 113. When the pressure plate 1152 is assembled, the upper side wall and the lower side wall of the third tenon joint 11521 will be squeezed tighter and tighter with the upper side wall and the lower side wall of the second positioning portion 11512.

[0078] Combine Figure 7 and Figure 10It should be noted that the second isolating member 1151 also includes a stopper 11513 connected to the side of the second positioning portion 11512 away from the second limiting portion 11511, and the stopper 11513 is provided with an insertion port 115131 passing through both sides of the stopper 11513 along the width direction of the second side plate 113; the pressing plate 1152 is provided with a socket 11522 located between the insertion port 115131 and the second mortise interface 212; the second connecting component 115 also includes an insulating mortise column 1153, and the mortise column 1153 is sequentially passed through the insertion port 115131, the socket 11522 and the second mortise interface 212.

[0079] Specifically, the stop block 11513 is connected to one end of the second positioning portion 11512 away from the second limiting portion 11511, and the stop block 11513 protrudes more from the inner wall of the second side plate 113 than the second positioning portion 11512. The stop block 11513 and the second limiting portion 11511 are spaced apart along the width direction of the second side plate 113, and a gap is formed between the stop block 11513 and the second limiting portion 11511, wherein the insertion port 115131 on the stop block 11513 passes through both sides of the stop block 11513 along the width direction of the second side plate 113 and is connected to the gap. The pressure plate 1152 is arranged between the stop block 11513 and the insulating plate 210. The pressure plate 1152 can press the second side end of the insulating plate 210, and the mortise column 1153 is passed through the insertion port 115131 of the stop block 11513, the socket 11522 of the pressure plate 1152 and the second mortise interface 212 of the insulating plate 210. At this time, the mortise column 1153 limits the pressure plate 1152 from escaping from the direction away from the second positioning portion 11512, thereby realizing the positioning of the pressure plate 1152.

[0080] like Figure 7 As shown, it should be noted that a plane parallel to the inner plate surface of the first side panel 112 is defined as the reference plane, the projection of the second mortise and tenon joint 212 on the reference plane is the first projection, the projection of the second positioning portion 11512 on the reference plane is the second projection, and the projection of the stop block 11513 on the reference plane is the third projection; wherein, the top ends of the second projection and the third projection are not higher than the top end of the first projection; and the bottom ends of the second projection and the third projection are not lower than the bottom end of the first projection.

[0081] In this way, during the process of assembling the grounding component 200, the first positioning portion 11412 is inserted into the first tenon joint 211, and the second side end of the insulating plate 210 is deflected toward the second limiting portion 11511 until the second tenon joint 212 is for the second positioning portion 11512 to be inserted, since the height dimension of the second tenon joint 212 is larger than the height dimension of the second positioning portion 11512 and the stop block 11513 in the second positioning portion 11512, the second positioning portion 11512 and the stop block 11513 will not interfere with the step of "deflecting the second side end of the insulating plate 210 toward the second limiting portion 11511 until the second tenon joint 212 is for the second positioning portion 11512 to be inserted".

[0082] Combine Figure 7 、 Figure 12 and Figure 13 It should be noted that the mortise column 1153 and the insertion hole 11522 have an interference fit. Specifically, the outer diameter of the mortise column 1153 gradually increases along the direction from the second limiting portion 11511 to the stopper 11513. In this way, when the mortise column 1153 is sequentially inserted into the insertion port 115131, the insertion hole 11522 and the second mortise interface 212, as the mortise column 1153 is inserted deeper, the mortise column 1153 and the hole wall of the insertion hole 11522 are squeezed more tightly, and the connection between the mortise column 1153 and the pressure plate 1152 can be achieved. At the same time, the side wall of the second mortise interface 212 opposite to the second positioning portion 11512 can prevent the mortise column 1153 from falling out, thereby preventing the pressure plate 1152 from falling out.

[0083] It should be further explained that the upper side wall and the lower side wall of the insertion port 115131 can also limit the upper and lower positions of the mortise column 1153, thereby limiting the upper and lower positions of the pressure plate 1152.

[0084] Among them, the mortise column 1153 includes a rigid body 11531 and an insulating sleeve 11532 sleeved on the rigid body 11531. The rigid body 11531 can be made of steel with high strength. The insulating sleeve 11532 can shield the conductivity of the rigid body 11531, thereby making the mortise column 1153 an insulating component.

[0085] like Figure 2 、 Figure 5 and Figure 7 As shown, the present invention also provides a method for installing the grounding assembly 200 of the cable grounding box in the above embodiment, comprising:

[0086] S100, obliquely insert the first side end of the insulating plate 210 of the grounding assembly 200 into the first connecting assembly 114 until the first tenon joint 211 is inserted into the first positioning portion 11412, wherein, when the first side end of the insulating plate 210 is obliquely inserted into the first connecting assembly 114, the distance between the second side end of the insulating plate 210 and the second limiting portion 11511 along the width direction of the second side plate 113 is greater than the distance between the first side end of the insulating plate 210 and the first limiting portion 11411 along the width direction of the first side plate 112;

[0087] S200, during the process in which the first tenon joint 211 is inserted into the first positioning portion 11412, the second side end of the insulating plate 210 is deflected toward the second limiting portion 11511 until the second tenon joint 212 is inserted into the second positioning portion 11512;

[0088] S300 , using the pressing plate 1152 to press the second side end of the insulating plate 210 onto the second limiting portion 11511 .

[0089] Specifically, when the grounding component 200 is installed, first, the first side end of the insulating plate 210 of the grounding component 200 is obliquely inserted into the first connecting component 114 until the first mortise joint 211 is inserted by the first positioning portion 11412; it should be noted that when the first side end of the insulating plate 210 is obliquely inserted into the first connecting component 114, the inclined state of the insulating plate 210 is: the distance between the second side end of the insulating plate 210 and the second limiting portion 11511 along the width direction of the second side plate 113 is greater than the distance between the first side end of the insulating plate 210 and the first limiting portion 11411 along the width direction of the first side plate 112; wherein, in the first During the insertion of the first positioning portion 11412 into the tenon joint 211, the second side end of the insulating plate 210 can be deflected toward the second limiting portion 11511 until the second tenon joint 212 is inserted into the second positioning portion 11512. Then, the pressing plate 1152 is inserted between the stopper 11513 and the insulating plate 210, and the third tenon joint 11521 on the pressing block is inserted into the second positioning portion 11512. Finally, the tenon post 1153 is inserted through the insertion port 115131, the insertion hole 11522, and the second tenon joint 212 to limit the pressure plate 1152 from being dislodged from the direction away from the second positioning portion 11512, thereby achieving the positioning of the pressure plate 1152. In the process of assembling the grounding assembly 200 into the box body 100 of the cable grounding box of the present invention, bolt-free assembly is possible, and the entire operation can be completed independently by a single worker, which is simple to operate.

[0090] like Figure 14 As shown, the connection structure between the cable 300 and the grounding assembly 200 is as follows:

[0091] First of all, it should be noted that the cable 300 can be a coaxial cable, which includes an inner conductor 310 and an outer conductor 320. The inner conductor 310 and the outer conductor 320 are coaxially arranged, and the outer conductor 320 is sleeved outside the inner conductor 310; in a section of the cable 300 used to connect to the grounding component 200, the outer layer of the cable 300 is stripped to expose the outer conductor 320. At the same time, in a section of the cable 300 used to connect to the grounding component 200, closer to its end, the outer conductor 320 of the cable 300 and the layer structure between the outer conductor 320 and the inner conductor 310 are further stripped to expose the inner conductor 310.

[0092] The grounding mechanism 220 includes an inner conductor connecting portion 221 and an outer conductor connecting portion 222. The inner conductor 310 of the cable 300 is used to be connected to the inner conductor connecting portion 221, thereby achieving grounding of the inner conductor 310 of the cable 300; the outer conductor 320 of the cable 300 is used to be connected to the outer conductor connecting portion 222, thereby achieving connection of the outer conductor 320 of the cable 300; it should be noted that the inner conductor connecting portion 221 and the outer conductor connecting portion 222 are both arranged on the insulating plate 210, and the insulating plate 210 is used to support the inner conductor connecting portion 221 and the outer conductor connecting portion 222, and the inner conductor connecting portion 221 and the outer conductor connecting portion 222 are both made of conductive materials and are grounded through other conductive components.

[0093] like Figure 16 As shown, the connection structure between the cable 300 and the grounding assembly 200 includes an inner conductor connection structure 230, which is used to connect the inner conductor 310 of the cable 300 to the inner conductor connection part 221; wherein the inner conductor connection part 221 is provided with an inner conductor insertion hole 2211; Figure 16 、 Figure 17 As shown, the inner conductor connection structure 230 includes a first plug head 231 , a first elastic conductor 232 and a clamping ring 233 .

[0094] The first plug connector 231 is used to be sleeved on the inner conductor 310 of the cable 300 .

[0095] Specifically, the first plug head 231 is a tubular structure, which is used to be sleeved on the inner conductor 310 of the cable 300 , wherein the first plug head 231 can be interference fit with the inner conductor 310 .

[0096] It should be noted that the first plug connector 231 may be made of a conductive material such as copper or aluminum, and the first plug connector 231 and the inner conductor 310 of the cable 300 can conduct electricity.

[0097] Combine Figure 16 and Figure 17 The first elastic conductor 232 is sleeved on the outside of the first plug head 231 .

[0098] Specifically, the first elastic conductor 232 is fixedly mounted on the outside of the first plug head 231. The first elastic conductor 232 and the first plug head 231 can be interference fit. In addition, the first elastic conductor 232 can be made of copper, copper alloy, aluminum or aluminum alloy, and other materials that are more easily conductive, such as silver or gold, can also be plated on the surface of the above materials to improve the conductivity between the inner conductor 310 and the inner conductor connecting portion 221.

[0099] Furthermore, a first positioning groove is provided on the outer side wall of the first plug head 231, and the first elastic conductor 232 is sleeved in the first positioning groove. The first positioning groove is used to limit the first elastic conductor 232, thereby preventing the first elastic conductor 232 from moving axially along the first plug head 231.

[0100] It can be understood that the first plug head 231 is used to penetrate the inner conductor insertion hole 2211 so that the first elastic conductor 232 is offset against the hole wall of the inner conductor insertion hole 2211. Since the first elastic conductor 232 is elastic, it can be offset against the hole wall of the inner conductor insertion hole 2211 under the action of its own elastic force, thereby reducing the risk of it being detached from the inner conductor connecting portion 221. In addition, the first elastic conductor 232 is offset against the hole wall of the inner conductor insertion hole 2211, which can realize the conductive connection between the first elastic conductor 232 and the inner conductor connecting portion 221, thereby achieving the purpose of conductively connecting the inner conductor 310 to the inner conductor connecting portion 221.

[0101] It can be understood that the inner conductor insertion hole 2211 has an insertion end and an exit end arranged opposite to the insertion end. Specifically in this embodiment, the lower end of the inner conductor insertion hole 2211 is the insertion end, and the upper end is the exit end. When the inner conductor 310 of the cable 300 is connected to the inner conductor connecting portion 221, the cable 300, the first plug head 231 and the first elastic conductor 232 are inserted from the insertion end of the inner conductor insertion hole 2211 into the interior of the inner conductor insertion hole 2211. When the cable 300, the first plug head 231 and the first elastic conductor 232 are inserted into place, a portion of the first plug head 231 passes through the exit end of the inner conductor insertion hole 2211 and exits. The portion of the first plug head 231 that passes through the exit end of the inner conductor insertion hole 2211 is defined as the clamping portion 2311.

[0102] Combine Figure 16 and Figure 18 The clamping ring 233 is sleeved on the clamping portion 2311 and is used to abut against one end of the inner conductor connecting portion 221 close to the outlet end of the inner conductor insertion hole 2211 .

[0103] It can be understood that the outer diameter of the clamping ring 233 is larger than the hole wall of the inner conductor insertion hole 2211. After the clamping ring 233 is sleeved on the clamping part 2311, it can prevent the first plug head 231 from falling out of the inner conductor insertion hole 2211, thereby achieving a reliable connection between the inner conductor 310 of the cable 300 and the inner conductor connecting part 221.

[0104] In the connection structure between the cable 300 and the grounding assembly 200 of the present invention, the inner conductor connection structure 230 enables a reliable connection between the inner conductor 310 of the cable 300 and the inner conductor connection portion 221. Furthermore, this method eliminates the need for bolts to fasten the inner conductor 310 of the cable 300, avoiding the need to grind the tips of the bolts flat, thus simplifying the connection method.

[0105] Combine Figure 18 and Figure 19 In some embodiments, a clamping entrance 23111 is provided on the edge of one end of the clamping portion 2311 away from the outlet end of the inner conductor insertion hole 2211, and an arc-shaped clamping groove 23112 is provided on the outer peripheral side wall of the clamping portion 2311, one end of which is connected to the clamping entrance 23111.

[0106] It can be understood that the card-connecting entrance 23111 extends from the edge of one end of the card-connecting portion 2311 away from the outlet end of the inner conductor insertion hole 2211 along the axial direction parallel to the inner conductor insertion hole 2211; the arc-shaped card-connecting groove 23112 is opened on the outer peripheral side wall of the card-connecting portion 2311, and the arc-shaped card-connecting groove 23112 is coaxially arranged with the card-connecting portion 2311, wherein one end of the arc-shaped card-connecting groove 23112 is connected to the card-connecting entrance 23111.

[0107] The clamping ring 233 includes a ring body 2331 and a buckle 2332 arranged on the inner side wall of the ring body 2331. The buckle 2332 is configured to be able to be screwed into the arc-shaped slot 23112 through the clamping entrance 23111, so that the ring body 2331 is sleeved on the clamping part 2311 and abuts against the end of the inner conductor connecting part 221 close to the outlet end.

[0108] It can be understood that when assembling the clamping ring 233, the clamping ring 2332 can be aligned with the clamping inlet 23111 first, and then the clamping ring 233 can be moved toward the clamping portion 2311 so that the clamping ring 2332 is inserted into the clamping inlet 23111 and is opposite to the entrance of the arc-shaped clamping groove 23112, and then the clamping ring 233 is rotated so that the clamping ring 233 and the clamping portion 2311 are matched together.

[0109] It can also be understood that when the inner conductor 310 of the cable 300 is connected to the inner conductor connecting portion 221, the cable 300, the first plug head 231 and the first elastic conductor 232 are inserted from the insertion end of the inner conductor insertion hole 2211 into the interior of the inner conductor insertion hole 2211. When the cable 300, the first plug head 231 and the first elastic conductor 232 are inserted into place, the clamping portion 2311 of the first plug head 231 passes through the exit end of the inner conductor insertion hole 2211. By installing a clamping ring 233 on the clamping portion 2311 and making the clamping ring 233 abut against one end of the inner conductor connecting portion 221 close to the exit end of the inner conductor insertion hole 2211, the clamping ring 233 is equivalent to an inverted structure, which can prevent the cable 300 from slipping out from the insertion end of the inner conductor insertion hole 2211.

[0110] Furthermore, the arc-shaped slot 23112 has an entrance end close to the snap-in entrance 23111 and a limiting wall 23113 away from the snap-in entrance 23111. The limiting wall 23113 cooperates with the snap buckle 2332 to limit the rotation angle of the snap buckle 2332. When the snap buckle 2332 is against the limiting wall 23113, it means that the snap buckle 2332 is installed in place.

[0111] like Figure 16 、 Figure 17 As shown, in some embodiments, the inner conductor connection structure 230 further includes an insulating cover 234, which is disposed on the clamping portion 2311 and seals the clamping ring 233. It is understood that the insulating cover 234 can seal the clamping portion 2311 to achieve insulation, isolate high voltage from low voltage, increase insulation distance, and improve safety.

[0112] like Figure 20 As shown, further, a plug 2341 for inserting into the card-connecting entrance 23111 is provided inside the insulation cover 234 .

[0113] Specifically, the insulating cover 234 is made of insulating material, such as insulating rubber or insulating plastic.

[0114] It can be understood that the plug strip 2341 can fill the card-connecting entrance 23111, so that the insulating cover 234, the card-connecting ring 233 and the card-connecting portion 2311 (the first plug head 231) form a whole, and the three realize circumferential limitation. When the cable 300 rotates, the three rotate together, and the buckle 2332 on the card-connecting ring 233 will not slide out of the arc-shaped card groove 23112, causing the connection position to fail.

[0115] Combine Figure 16 and Figure 17In some embodiments, the inner conductor connection structure 230 further includes a first insulating member 235 , which is sleeved on the outside of the first plug head 231 , and the first insulating member 235 covers the gap between the insertion end of the inner conductor insertion hole 2211 and the first plug head 231 .

[0116] Specifically, the first insulating member 235 is made of an insulating material, such as insulating rubber or insulating plastic. At least a portion of the first insulating member 235 is inserted into the gap between the insertion end of the inner conductor insertion hole 2211 and the first plug head 231. On the one hand, it can improve the sealing effect and reduce the risk of the relevant conductor in the inner conductor insertion hole 2211 being oxidized and corroded by the atmosphere. On the other hand, it can also achieve insulation and improve safety.

[0117] like Figure 16 As shown, in some embodiments, the connection structure between the cable 300 and the grounding assembly 200 further includes an outer conductor connection structure 240 , which is used to connect the outer conductor 320 of the cable 300 to the outer conductor connection portion 222 .

[0118] Combine Figure 16 and Figure 21 , wherein the outer conductor connection structure 240 includes a second plug head 241 and a second elastic conductor 242 .

[0119] The second plug connector 241 is used to be sleeved on the outer conductor 320 of the cable 300 .

[0120] Specifically, the second plug head 241 is a tubular structure, which is used to be sleeved outside the outer conductor 320 of the cable 300 , wherein the second plug head 241 can be interference fit with the outer conductor 320 .

[0121] It should be noted that the second plug connector 241 can be made of a conductive material such as copper or aluminum, and the second plug connector 241 and the outer conductor 320 of the cable 300 can be electrically conductive.

[0122] The second elastic conductor 242 is sleeved on the second plug connector 241 .

[0123] Specifically, the second elastic conductor 242 is fixedly sleeved on the outside of the second plug head 241, and the second elastic conductor 242 and the second plug head 241 can be interference fit. In addition, the second elastic conductor 242 can be made of copper, copper alloy, aluminum or aluminum alloy, etc., and other more conductive materials such as silver and gold can be plated on the surface of the above materials to improve the conductivity between the outer conductor 320 and the outer conductor connecting portion 222.

[0124] Furthermore, a second positioning groove is provided on the outer side wall of the second plug head 241, and the second elastic conductor 242 is sleeved in the second positioning groove. The second positioning groove is used to limit the second elastic conductor 242, thereby preventing the second elastic conductor 242 from moving axially along the second plug head 241.

[0125] It should be noted that the outer conductor connecting portion 222 is used to clamp the second elastic conductor 242 , thereby fixing the second elastic conductor 242 .

[0126] Combine Figure 15 and Figure 16 Specifically, the outer conductor connecting portion 222 is a clamp, and the outer conductor connecting portion 222 includes a first clamping portion 2221 and a second clamping portion 2222 rotatably connected to the first clamping portion 2221 , and the first clamping portion 2221 and the second clamping portion 2222 jointly clamp the second elastic conductor 242 .

[0127] Furthermore, one end of the first clamping portion 2221 is rotatably connected to one end of the second clamping portion 2222, and the other end of the first clamping portion 2221 is rotatably connected to a screw rod 2223. The other end of the second clamping portion 2222 is provided with a limiting groove 22221. The screw rod 2223 is rotated into the limiting groove 22221 and is locked with the second clamping portion 2222 via a nut 2224. It should be noted that the nut 2224 is a cap-type nut 2224. Specifically, the nut 2224 is in the shape of a cap, and its inner side wall is provided with threads. When the nut 2224 is connected to the screw rod 2223, the nut 2224 covers the end of the screw rod 2223.

[0128] Combine Figure 16 and Figure 21 In some embodiments, the outer conductor connection structure 240 further includes a second insulating member 243 , which is sleeved outside the second plug head 241 .

[0129] Specifically, the second insulating member 243 is made of an insulating material, such as insulating rubber or insulating plastic. The second insulating member 243 is sealed around the end of the second plug head 241. On the one hand, it can improve the sealing effect and reduce the risk of the second elastic conductor 242 being oxidized and corroded by the atmosphere. On the other hand, it can also achieve insulation and improve safety.

[0130] like Figure 22 As shown, in some embodiments, the box 100 further includes a bottom plate assembly 120 , which is connected to the bottom of the side plate assembly 110 .

[0131] like Figures 22 to 23 As shown, the base plate assembly 120 is provided with a wire passing structure 123 .

[0132] Further, see Figure 23 The wire passing structure 123 includes multiple cable passing coils 1231. Different cable passing coils 1231 have different inner diameters. The cable passing coil 1231 with a larger inner diameter is arranged outside the cable passing coil 1231 with a smaller inner diameter. A connecting portion 1232 is provided between each adjacent two cable passing coils 1231.

[0133] It is understood that the plurality of cable coils 1231 are concentric structures, and the plurality of cable coils 1231 are all arranged concentrically with the wire through hole, wherein the cable coils 1231 can be a complete loop structure or a non-closed loop structure. Every two adjacent cable coils 1231 are connected by a connecting portion 1232.

[0134] The connecting portion 1232 and the two cable coils 1231 connected thereto are detachably connected. In other words, the connecting portion 1232 and the cable coils 1231 connected thereto can be separated. The manner in which the connecting portion 1232 and the cable coils 1231 connected thereto are separated includes but is not limited to cutting off the connection between the connecting portion 1232 and the cable coils 1231.

[0135] In the base plate assembly 120, each cable coil 1231 is a removable structure. According to the diameter of the cable 300, the cable coil 1231 with a smaller inner diameter can be removed so that the cable 300 can pass through the cable coil 1231 that matches the diameter of the cable 300. In this way, the requirement of the cable 300 passing through is met. Similarly, it can also ensure that there will be no large gap between the inner wall of the cable coil 1231 and the cable 300. This can reduce the use of sealant, save costs, and improve the adhesion ability of the sealant, reduce the risk of the sealant falling off, and improve the sealing performance.

[0136] Furthermore, a plurality of spaced connection portions 1232 are provided between each two adjacent cable windings 1231. In this way, the reliability of the connection between each two adjacent cable windings 1231 can be improved.

[0137] It should be noted that the thickness of the connecting portion 1232 is less than the thickness of the cable winding 1231, so that the connecting portion 1232 can be cut more easily. The thickness of the connecting portion 1232 can be set between 1 mm and 3 mm.

[0138] The cable winding 1231 and the connecting portion 1232 may be an integrally formed structure.

[0139] It should be noted that, in order to adapt to more types of cables 300, the cable winding coil 1231 may not be set to a regular circle.

[0140] like Figure 23 As shown, in some embodiments, the base plate assembly 120 includes an outer frame 121 and a flap 122 . The outer frame 121 is surrounded by an opening, and the flap 122 is rotatably connected to the outer frame 121 and can be opened to cover the opening.

[0141] It can be understood that the flap 122 is rotatably connected to the outer frame 121, and the flap 122 is configured to be flipped to adjust the angle. In this way, even if the cable 300 passes through the bottom plate assembly 120 into the interior of the box 100, the cable 300 has greater freedom and can be easily inserted into different positions.

[0142] Specifically, the flap 122 includes a first flap 1221 and a second flap 1222, one side of the first flap 1221 is rotatably connected to one side of the opening of the outer frame 121, and one side of the second flap 1222 is rotatably connected to the other side of the opening of the outer frame 121, and the first flap 1221 and the second flap 1222 are arranged side by side; a first half hole is provided on a side of the first flap 1221 close to the second flap 1222, and a second half hole is provided on a side of the second flap 1222 close to the first flap 1221, and a partial structure of each cable passing coil 1231 is arranged in the first half hole, and the other partial structure of each cable passing coil 1231 is arranged in the second half hole.

[0143] It should be noted that the flap 122 is configured to be able to flip upward relative to the outer frame 121 and is restricted from flipping downward relative to the outer frame 121. In this way, when the cable 300 passes through the bottom plate assembly 120 and enters the box 100, there is no need to worry about the flap 122 flipping downward to affect assembly.

[0144] Specifically, the first flap 1221 is rotatably connected to the outer frame 121 through the first hinge 1241. The first hinge 1241 is arranged on the upper side of the outer frame 121. One of the hinges of the first hinge 1241 is connected to the upper side of the outer frame 121, and the other hinge is connected to the upper side of the first flap 1221. When the first flap 1221 is in a closed state, the side wall of the first flap 1221 close to its rotation axis is in contact with the side wall of the opening of the outer frame 121, and the side wall of the opening limits the first flap 1221 from flipping downward.

[0145] Similarly, the second flap 1222 is rotatably connected to the outer frame 121 through the second hinge 1242. The second hinge 1242 is arranged on the upper side of the outer frame 121. One of the hinges of the second hinge 1242 is connected to the upper side of the outer frame 121, and the other hinge is connected to the upper side of the second flap 1222. When the second flap 1222 is in a closed state, the side wall of the second flap 1222 close to its rotation axis is in contact with the side wall of the opening of the outer frame 121, and the side wall of the opening limits the second flap 1222 from flipping downward.

[0146] like Figure 1 As shown, the box body 100 further includes a box cover 140, which is arranged on the top of the side panel assembly 110. The projection of the box cover 140 on the horizontal plane covers the projections of multiple side panel assemblies 110 on the horizontal plane. In this way, the box cover 140 can play a role in shielding against rain and reduce the risk of rainwater entering the interior of the box body 100.

Claims

1. A cable grounding box, characterized in that: include: The box body includes a first side panel and a second side panel spaced apart from and arranged opposite to the first side panel, wherein the inner side wall of the first side panel is provided with a first support portion, and the inner side wall of the second side panel is provided with a second support portion; A first connecting assembly includes an insulating first isolating member, the first isolating member covering the first supporting portion and supported by the first supporting portion, the first isolating member including a first limiting portion and a first positioning portion connected to the first limiting portion and arranged with the first limiting portion along the width direction of the first side plate; a second connecting assembly comprising an insulating second isolating member and an insulating pressing plate, wherein the second isolating member covers the second supporting portion and is supported by the second supporting portion, and the second isolating member comprises a second limiting portion disposed opposite to the first limiting portion, and a second positioning portion connected to the second limiting portion and disposed opposite to the first positioning portion; a grounding assembly disposed in the box, the grounding assembly comprising an insulating plate and a grounding mechanism disposed on the insulating plate, a first tenon joint being provided at a first side end of the insulating plate, a second tenon joint being provided at a second side end of the insulating plate, the first positioning portion being provided through the first tenon joint, and the second positioning portion being provided through the second tenon joint; The pressing plate is arranged on the second isolating member and presses the second side end of the insulating plate against the first limiting portion. A third tenon joint is provided on a side of the pressing plate close to the second positioning portion. At least a portion of the second positioning portion passes through the third tenon joint and abuts against an opening wall of the third tenon joint. Among them, the second isolating member also includes a stopper connected to the side of the second positioning portion away from the second limiting portion, and the stopper is provided with an insertion opening that passes through both sides of the stopper along the width direction of the second side plate; the pressing plate is provided with a socket located between the insertion opening and the second mortise interface; the second connecting component also includes an insulating mortise column, which is sequentially provided through the insertion opening, the socket and the second mortise interface, and the mortise column is interference fit with the socket.

2. The cable grounding box according to claim 1, characterized in that: The first isolating member further includes an anti-slip portion connected to a side of the first positioning portion away from the first limiting portion, and the first side end of the insulating plate is limited between the first limiting portion and the anti-slip portion.

3. The cable grounding box according to claim 1, characterized in that: The first supporting portion is provided with a first mounting hole, a first elastic supporting member is provided in the first mounting hole, a first avoidance hole is provided on a side of the first isolating member close to the first side plate, the first supporting portion is passed through the first avoidance hole and the first elastic supporting member is supported against the first isolating member; and / or, the second supporting portion is provided with a second mounting hole, a second elastic supporting member is provided in the second mounting hole, a second avoidance hole is provided on a side of the second isolating member close to the second side plate, the second supporting portion is passed through the second avoidance hole and the second elastic supporting member is supported against the second isolating member.

4. The cable grounding box according to claim 1, characterized in that: The grounding mechanism includes an inner conductor connecting portion and an outer conductor connecting portion, wherein the inner conductor connecting portion is provided with an inner conductor penetration hole; The cable grounding box further comprises a connection structure, wherein the connection structure comprises an inner conductor connection structure, and the inner conductor connection structure comprises a first plug head, a first elastic conductor and a clamping ring; The first plug head is used to be sleeved on the outer side of the inner conductor of the cable; the first elastic conductor is sleeved on the outer side of the first plug head, and the first plug head is used to be inserted into the inner conductor insertion hole so that the first elastic conductor is abutted against the hole wall of the inner conductor insertion hole, the inner conductor insertion hole has an insertion end and an exit end arranged opposite to the insertion end, and the first plug head has a clamping portion that penetrates into the inner conductor insertion hole through the insertion end and exits from the exit end; the clamping ring is sleeved on the clamping portion and is used to abut against one end of the inner conductor connecting portion close to the exit end.

5. The cable grounding box according to claim 4, characterized in that: An insertion port is provided on the edge of the clamping portion at one end away from the outlet end, and an arc-shaped clamping groove is provided on the outer peripheral side wall of the clamping portion, one end of which is connected to the insertion port; the clamping ring includes a ring body and a buckle provided on the inner peripheral side wall of the ring body, and the buckle is configured to be able to be screwed into the arc-shaped clamping groove through the insertion port, so that the ring body is sleeved on the clamping portion and abuts against the end of the inner conductor connecting part close to the outlet end.

6. The cable grounding box according to claim 5, characterized in that: The inner conductor connection structure further includes an insulating cover, which is arranged on the clamping portion and seals the clamping ring; Wherein, a plug is provided inside the insulating cover and is inserted into the insertion port.

7. The cable grounding box according to claim 1, characterized in that: The box body also includes a bottom plate assembly, and the bottom plate assembly is provided with a wire passing structure; The cable passing structure includes a plurality of cable passing coils, and different cable passing coils have different inner diameters. The cable passing coil with a larger inner diameter is arranged outside the cable passing coil with a smaller inner diameter; a connecting portion is provided between each two adjacent cable passing coils; Wherein, the connecting portion and at least one of the two cable windings connected thereto are detachably connected.

8. A method for installing a grounding assembly, applied to the cable grounding box according to any one of claims 1 to 7, characterized in that: include: Inserting the first side end of the insulating plate of the grounding assembly obliquely into the first isolating member until the first tenon joint is inserted into the first positioning portion, wherein when the first side end of the insulating plate is obliquely inserted into the first isolating member, the distance between the second side end of the insulating plate and the second isolating member along the width direction of the second side plate is greater than the distance between the first side end of the insulating plate and the first isolating member along the width direction of the first side plate; During the process of the first tenon joint being inserted into the first positioning portion, the second side end of the insulating plate is deflected toward the second isolating member until the second tenon joint is inserted into the second positioning portion; Using the pressing plate to press the second side end of the insulating plate against the second limiting portion; The step of pressing the second side end of the insulating plate against the second limiting portion using the pressing plate includes: Inserting the pressing plate between the stopper and the insulating plate, and allowing the second positioning portion to be inserted into the third tenon joint on the pressing plate; The mortise and tenon joint column is penetrated through the insertion port, the insertion hole and the second mortise and tenon joint.

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