Six-wire single-core cable grounding box

Abstract

The utility model discloses a six-wire single-core cable grounding box. The six-wire single-core cable grounding box comprises a box body and a grounding assembly, the box body comprises a first edge side plate and a second edge side plate which is arranged opposite to the first edge side plate in a spaced mode, the box body further comprises two joggle joint assemblies, and each joggle joint assembly comprises a first joggle joint structure arranged on the inner side wall of the first edge side plate and a second joggle joint structure arranged on the inner side wall of the second edge side plate. The first joggle joint structure and the second joggle joint structure of each joggle joint assembly are non-conductive components. The number of the grounding assemblies is two, the two grounding assemblies are arranged corresponding to the two joggle joint assemblies, the two grounding assemblies are arranged between the first side plate and the second side plate, and each grounding assembly comprises an insulating plate and a grounding mechanism arranged on the insulating plate; in the grounding assembly and the joggling assembly which correspond to each other, the first side end of the insulating plate is connected to the first joggling structure, and the second side plate of the insulating plate is connected to the second joggling structure.

Description

Technical Field

[0001] This utility model relates to the field of cable grounding box technology, and in particular to a six-wire single-core cable grounding box. Background Technology

[0002] During the laying of high-voltage cables, grounding systems are installed at appropriate locations to conduct the induced voltage generated during cable operation to the ground, eliminating the adverse effects of overvoltage and overcurrent on cable line operation. The grounding system mainly consists of grounding boxes, grounding cables, return cables, etc.

[0003] In related technologies, the grounding components inside the grounding box are fixed to the side plate of the box with metal bolts, which increases the safety hazard. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a six-wire single-core cable grounding box with high safety.

[0005] A six-wire single-core cable grounding box according to some embodiments of the present invention includes a box body and a grounding assembly;

[0006] The box body includes a first side panel and a second side panel spaced apart from and opposite to the first side panel. The box body also includes two sets of tenon joint components. Each set of tenon joint components includes a first tenon structure disposed on the inner side wall of the first side panel and a second tenon structure disposed on the inner side wall of the second side panel. The first tenon structure and the second tenon structure of each set of tenon joint components are non-conductive components.

[0007] The number of grounding components is two sets, the two sets of grounding components are set corresponding to the two sets of tenon components, and the two sets of grounding components are set between the first side plate and the second side plate. Each set of grounding components includes an insulating plate and a grounding mechanism set on the insulating plate.

[0008] In the corresponding grounding component and the tenon joint component: the first side end of the insulating plate is connected to the first tenon joint structure, and the second side plate of the insulating plate is connected to the second tenon joint structure.

[0009] The six-wire single-core cable grounding box according to the embodiment of this utility model has at least the following beneficial effects:

[0010] In this six-wire single-core cable grounding box, the first and second tenon joints of each tenon assembly are non-conductive components. These first and second tenon joints connect the insulation plate to the side plate. Compared to the traditional method of using metal bolts, this avoids the problem of corona discharge caused by the sharp corners and edges of metal bolts ionizing the surrounding air under a strong electric field. Corona discharge triggers a series of chemical reactions, producing highly corrosive substances such as ozone, nitric oxide, and nitrogen dioxide, which can corrode the grounding mechanism, reduce the conductivity of conductors, and even cause conductor overheating. Furthermore, corona discharge generates high-frequency pulse currents containing various high-order harmonics that can damage the grounding box's intelligent processing devices and even other surrounding equipment. In addition to preventing radio interference, corona discharge consumes energy, increases power loss in transmission lines, causes unnecessary energy loss in the power system, and affects transmission efficiency. It also avoids the problem of charge accumulation. Specifically, it prevents the charge on the metal bolt from reaching a certain potential if it cannot be released in time. When the potential is high enough, electrostatic discharge will occur, which may ignite flammable and explosive gases, suspended dust and the combustible mixture formed by air, leading to fire or even explosion, seriously threatening the safety of the cable line. It also avoids the problem of electric field concentration. Specifically, the sharp corners of the suspended metal bolts can cause electric field concentration, increasing the electric field strength in that area. When the electric field strength exceeds the gas breakdown voltage, arc discharge may occur, leading to equipment failure or damage.

[0011] Furthermore, the traditional method of using metal bolts to connect the insulation board to the side plate requires a large insulation distance between the metal bolts and the conductive grounding mechanism to overcome the influence of the metal bolts, resulting in a large internal space of the box and a large overall size of the cable grounding box. However, by using the first tenon joint structure and the second tenon joint structure to connect the insulation board to the side plate, the insulation distance between the tenon joint structure and the grounding mechanism does not need to be considered, which can reduce the internal space of the box and thus reduce the size of the cable grounding box.

[0012] According to some embodiments of the present invention, in the tenon joint assembly: one of the first tenon joint structure and the second tenon joint structure includes a first limiting member and a first tenon joint block, and the other includes a second limiting member, a second tenon joint block, a pressure plate and a tenon joint post, wherein the first tenon joint block includes a first support portion connected to the first limiting member and arranged along a preset direction with the first limiting member, the second limiting member is disposed opposite to the first limiting member, the second tenon joint block includes a second support portion connected to the second limiting member and a stop block connected to the second support portion, the second support portion is disposed opposite to the first support portion and arranged along the preset direction with the second limiting member, the stop block is connected to the end of the second support portion away from the second limiting member, the stop block is provided with an insertion port, the insertion port passes through both sides of the stop block along the preset direction, wherein the preset direction is parallel to the width direction of the first side plate;

[0013] The first side end of the insulating plate is provided with a first tenon joint, and the second side end of the insulating plate is provided with a second tenon joint;

[0014] In the corresponding grounding component and the tenon joint component: the first support part passes through the first tenon joint, the second support part passes through the second tenon joint, the pressure plate is disposed between the stop block and the insulating plate, and the tenon joint post passes through the insertion port, the pressure plate and the second tenon joint.

[0015] According to some embodiments of the present invention, the first tenon block further includes an anti-detachment part connected to the side of the first support portion away from the first limiting member;

[0016] In the corresponding grounding assembly and the tenon assembly: the anti-detachment part is limited to the first side end of the insulating plate.

[0017] According to some embodiments of this utility model, the pressure plate is provided with insertion holes;

[0018] In the corresponding grounding component and the tenon component: the socket is located between the insertion port and the second tenon interface, the tenon post is sequentially inserted through the insertion port, the socket and the second tenon interface, and the tenon post is interference-fitted with the socket.

[0019] According to some embodiments of the present invention, in the tenon joint assembly: the outer diameter of the tenon post gradually increases along the direction from the second limiting member to the stop block.

[0020] According to some embodiments of the present invention, the tenon joint includes a rigid column and an elastic insulating sleeve fitted over the rigid column.

[0021] According to some embodiments of the present invention, the pressure plate is provided with a third tenon interface; in the tenon assembly: at least a portion of the second support portion passes through the third tenon interface.

[0022] According to some embodiments of the present invention, in the tenon joint assembly: the upper and lower sidewalls of the third tenon joint abut against the upper and lower sidewalls of the second support portion, respectively.

[0023] According to some embodiments of this utility model, a plane parallel to the inner plate surface of the first side plate is defined as a reference plane;

[0024] In the corresponding grounding component and the tenon component: the projection of the second tenon interface on the reference plane is the first projection, the projection of the second support portion on the reference plane is the second projection, and the projection of the stop block on the reference plane is the third projection, wherein the tops of the second projection and the third projection are not higher than the top of the first projection; and the bottoms of the second projection and the third projection are not lower than the bottom of the first projection.

[0025] According to some embodiments of the present invention, the two sets of grounding components are spaced apart in a preset direction, and the projections of the two sets of grounding components on the vertical plane do not overlap, wherein the preset direction is parallel to the width direction of the first side plate.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0028] Figure 1 This is a partial structural schematic diagram of a six-wire single-core cable grounding box according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the first side plate according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the second side plate according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of an insulating plate according to an embodiment of the present invention;

[0032] Figure 5 This is a cross-sectional view of the insulating plate and side plate according to an embodiment of the present invention.

[0033] Figure 6 This is another cross-sectional view of the insulating plate and side plate according to one embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of a pressure plate according to an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the tenon joint column according to an embodiment of the present invention.

[0036] Icon labels:

[0037] 110. First side plate; 120. Second side plate; 130. First tenon joint structure; 131. First limiting member; 132. First tenon block; 1321. First support part; 1322. Anti-detachment part; 140. Second tenon joint structure; 141. Second limiting member; 142. Second tenon block; 1421. Second support part; 1422. Stop block; 14221. Insertion port; 143. Pressure plate; 1431. Insertion hole; 1432. Third tenon joint; 144. Tenon post; 1441. Rigid column; 1442. Elastic insulating sleeve;

[0038] 200. Grounding component; 210. Insulating board; 211. First tenon joint; 212. Second tenon joint; 220. Grounding mechanism. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Figure 1 A partial structure of a six-wire single-core cable grounding box according to an embodiment of the present invention is shown, which includes a box body and a grounding assembly 200.

[0043] like Figure 1 As shown, the housing includes a side panel assembly, which includes a first side panel 110 and a second side panel 120 that is spaced apart from and opposite to the first side panel 110.

[0044] Combination Figure 1 , Figure 2 and Figure 3 Furthermore, the enclosure also includes two sets of tenon joint components. Each set of tenon joint components includes a first tenon structure 130 disposed on the inner side wall of the first side panel 110 and a second tenon structure 140 disposed on the inner side wall of the second side panel 120. Both the first tenon structure 130 and the second tenon structure 140 of each set of tenon joint components are non-conductive components. The first tenon structure 130 and the second tenon structure 140 of each set of tenon joint components can be made entirely of insulating material, or they can be coated or wrapped with an insulating layer to prevent conductivity.

[0045] There are two sets of grounding components 200, which correspond to two sets of tenon joint components. Both sets of grounding components 200 are located between the first side plate 110 and the second side plate 120. Each set of grounding components 200 includes an insulating plate 210 and a grounding mechanism 220 disposed on the insulating plate 210.

[0046] Specifically, the insulating plate 210 is used to support the grounding mechanism 220, which is used to connect cables. More specifically, the grounding mechanism 220 in each set of grounding components 200 is used to connect three single-core cables, so that the two sets of grounding components 200 can ground six single-core cables. It should be noted that the two sets of grounding components 200 are spaced apart in a preset direction, and the projections of the two sets of grounding components 200 on the vertical plane do not coincide. The preset direction is parallel to the width direction of the first side plate 110. Of course, the width direction of the first side plate 110 is parallel to the width direction of the second side plate 120. Therefore, the preset direction is also parallel to the width direction of the second side plate 120. In this way, when connecting cables to the two sets of grounding components 200 respectively, interference can be reduced and it is more convenient.

[0047] Among them, in the corresponding grounding component 200 and tenon joint component: the first side end of the insulating plate 210 is connected to the first tenon joint structure 130, and the second side plate of the insulating plate 210 is connected to the second tenon joint structure 140.

[0048] In this utility model of a six-wire single-core cable grounding box, the first tenon structure 130 and the second tenon structure 140 of each tenon assembly are non-conductive components. The insulating plate 210 is connected to the side plate using the first tenon structure 130 and the second tenon structure 140. Compared to the traditional method of using metal bolts to connect the insulating plate 210 to the side plate, this avoids the problem of corona discharge caused by the sharp corners and edges of the metal bolts ionizing the surrounding air under a strong electric field. Corona discharge can trigger a series of chemical reactions, producing highly corrosive substances such as ozone, nitric oxide, and nitrogen dioxide, which can easily corrode the grounding mechanism 220, reduce the conductivity of related conductors, and even cause conductor overheating failure. Furthermore, corona discharge generates high-frequency pulse currents, which contain various high-order harmonics that can affect the intelligent processing of the grounding box itself. Corona discharge can cause radio interference to power processing devices and even other surrounding equipment. In addition, it consumes energy, increases the power loss of transmission lines, causes unnecessary energy loss in the power system, and affects transmission efficiency. It also avoids the problem of charge accumulation. Specifically, it prevents the problem of charge on metal bolts from reaching a certain potential if it cannot be released in time. When the potential is high enough, electrostatic discharge will occur. This discharge may ignite flammable and explosive gases, suspended dust and air-to-air combustible mixtures, leading to fire or even explosion accidents, seriously threatening the safety of cable operation lines. It also avoids the problem of electric field concentration. Specifically, the sharp corners of suspended metal bolts can cause electric field concentration, increasing the electric field strength in that area. When the electric field strength exceeds the gas breakdown voltage, arc discharge may occur, leading to equipment failure or damage.

[0049] In addition, the traditional method of using metal bolts to connect the insulation plate 210 to the side plate requires a large insulation distance between the metal bolts and the conductive grounding mechanism 220 to overcome the influence of the metal bolts, resulting in a large internal space of the box and a large overall size of the cable grounding box. However, by using the first tenon structure 130 and the second tenon structure 140 to connect the insulation plate 210 to the side plate, the insulation distance between the tenon structure and the grounding mechanism 220 does not need to be considered, which can reduce the internal space of the box and thus reduce the size of the cable grounding box.

[0050] In some embodiments, in the tenon joint assembly: such as Figure 2 As shown, the first tenon joint structure 130 includes a first limiting member 131 and a first tenon joint block 132. The first tenon joint block 132 includes a first support portion 1321 connected to the first limiting member 131 and arranged along a predetermined direction with the first limiting member 131; as shown Figure 3 As shown, the second tenon structure 140 includes a second limiting member 141, a second tenon block 142, a pressure plate 143, and a tenon post 144. The second tenon block 142 includes a second support portion 1421 connected to the second limiting member 141 and a stop block 1422 connected to the second support portion 1421. The second support portion 1421 is disposed opposite to the first support portion 1321 and arranged with the second limiting member 141 in a preset direction. The stop block 1422 is connected to the end of the second support portion 1421 away from the second limiting member 141. The stop block 1422 is provided with an insertion port 14221, which penetrates both sides of the stop block 1422 in a preset direction.

[0051] Specifically, in the tenon joint assembly: a first limiting member 131 is connected to the inner wall of the first side plate 110 and extends vertically; a first tenon block 132 is connected to one side of the first limiting member 131 along a predetermined direction, and the first tenon block 132 has a first support portion 1321. The first support portion 1321 and the first limiting member 131 are arranged along a predetermined direction, wherein the first limiting member 131 protrudes further from the inner wall of the first side plate 110 relative to the first support portion 1321; a second limiting member 141 is connected to the inner wall of the second side plate 120 and extends vertically, and the second limiting member 141 and the first limiting member 131 are arranged side by side with intervals and opposite to each other; the second tenon block 142 is connected to one side of the second limiting member 141 along a predetermined direction. The second support portion 1421 and the second limiting member 141 are arranged along a preset direction and are opposite to the first support portion 1321. The second limiting member 141 protrudes further from the inner wall of the second side plate 120 than the second support portion 1421. The stop block 1422 is connected to the end of the second support portion 1421 away from the second limiting member 141, and the stop block 1422 protrudes further from the inner wall of the second side plate 120 than the second support portion 1421. The stop block 1422 and the second limiting member 141 are spaced apart along a preset direction, and a gap is formed between the stop block 1422 and the second limiting member 141. The insertion port 14221 on the stop block 1422 passes through both sides of the stop block 1422 along the preset direction and communicates with the gap.

[0052] like Figure 4 As shown, the first side end of the insulating plate 210 is provided with a first tenon joint 211, and the second side end of the insulating plate 210 is provided with a second tenon joint 212. In the corresponding grounding assembly 200 and tenon joint assembly: as... Figure 5 As shown, the first side end of the insulating plate 210 is positioned facing the first tenon structure 130, such that the first support portion 1321 passes through the first tenon joint 211, as... Figure 6 As shown, the second side end of the insulating plate 210 is positioned towards the second tenon structure 140, and the second support portion 1421 passes through the second tenon interface 212. The pressure plate 143 is positioned between the stop block 1422 and the insulating plate 210. The tenon post 144 passes through the insertion port 14221, the pressure plate 143, and the second tenon interface 212. It should be noted that the first limiting member 131, the first tenon block 132, the second limiting member 141, the second tenon block 142, the pressure plate 143, and the tenon post 144 are all non-conductive components.

[0053] Specifically, the insulating plate 210 includes two opposing ends, one of which is a first end and the other is a second end. A first tenon joint 211 is formed on the first end of the insulating plate 210, and a second tenon joint 212 is formed on the second end of the insulating plate 210. In the corresponding grounding assembly 200 and tenon joint assembly: the first end of the insulating plate 210 is positioned toward the first tenon joint structure 130, and the first support portion 1321 passes through the first tenon joint 211. Thus, under the action of the first support portion 1321, the first end of the insulating plate 210 can be limited in the vertical direction. In addition, under the action of the first limiting member 131, the first end of the insulating plate 210 can be limited on one side along the width direction of the first side plate 110. In the corresponding grounding assembly 200 and tenon assembly: the second side end of the insulating plate 210 is disposed facing the second tenon structure 140 and the second support portion 1421 passes through the second tenon interface 212. Thus, under the action of the second support portion 1421, the second side end of the insulating plate 210 can be limited in the vertical direction. In addition, under the action of the second limiting member 141, the second side end of the insulating plate 210 can be limited on one side along the width direction of the second side plate 120.

[0054] Furthermore, in the corresponding grounding component 200 and tenon joint component: the pressure plate 143 is disposed between the stop block 1422 and the insulating plate 210, and the tenon joint post 144 passes through the insertion port 14221 of the stop block 1422, the pressure plate 143 and the second tenon joint 212.

[0055] It is understandable that in the corresponding grounding component 200 and tenon joint component: the pressure plate 143 is set between the stop block 1422 and the insulating plate 210. The pressure plate 143 can press the second side end of the insulating plate 210 tightly, so that the entire insulating plate 210 itself is fixed to the box. The tenon joint post 144 is inserted into the insertion port 14221 of the stop block 1422, the pressure plate 143 and the second tenon joint 212. At this time, the tenon joint post 144 restricts the pressure plate 143 from coming out from the direction away from the second support part 1421, and can realize the positioning of the pressure plate 143.

[0056] When installing any of the grounding components 200 of this utility model: First, the first side end of the insulating plate 210 of the grounding component 200 is inserted obliquely into the first tenon structure 130 until the first tenon joint 211 is inserted into the first support part 1321; it should be noted that when the first side end of the insulating plate 210 is inserted obliquely into the first tenon structure 130, 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 member 141 along the width direction of the second side plate 120 is greater than the distance between the first side end of the insulating plate 210 and the first limiting member 131 along the width direction of the first side plate 1120. The width of 0 is greater; during the insertion of the first tenon joint 211 into the first support part 1321, the second side end of the insulating plate 210 can be deflected toward the second limiting member 141 until the second tenon joint 212 is inserted into the second support part 1421; then, the pressure plate 143 is inserted between the stop block 1422 and the insulating plate 210; finally, the tenon joint 144 is inserted through the insertion port 14221 of the stop block 1422, the pressure plate 143 and the second tenon joint 212, thereby restricting the pressure plate 143 from coming out from the direction away from the second support part 1421, and realizing the positioning of the pressure plate 143. In the process of assembling the grounding component 200 into the box body, the cable grounding box of this utility model can be assembled without bolts, and the entire operation can be completed independently by a single worker, which is simple to operate.

[0057] It should be noted that a plane parallel to the inner surface of the first side plate 110 is defined as the reference plane; in the corresponding grounding component 200 and tenon component: the projection of the second tenon interface 212 on the reference plane is the first projection, the projection of the second support part 1421 on the reference plane is the second projection, and the projection of the stop block 1422 on the reference plane is the third projection; wherein, the top of the second projection and the third projection are not higher than the top of the first projection; and the bottom of the second projection and the third projection are not lower than the bottom of the first projection.

[0058] Thus, during the installation of the grounding assembly 200, when the first tenon joint 211 is inserted into the first support part 1321, and the second side end of the insulating plate 210 is deflected toward the second limiting member 141 until the second tenon joint 212 is inserted into the second support part 1421, since the dimension of the second tenon joint 212 in the height direction is greater than the dimension of the second support part 1421 and the stop 1422 in the height direction of the second support part 1421, the second support part 1421 and the stop 1422 will not interfere with the step of "the second side end of the insulating plate 210 is deflected toward the second limiting member 141 until the second tenon joint 212 is inserted into the second support part 1421".

[0059] like Figure 5As shown, the first tenon block 132 also includes an anti-detachment part 1322 connected to the side of the first support part 1321 away from the first limiting member 131; in the corresponding grounding assembly 200 and tenon assembly: the anti-detachment part 1322 is limited and engaged with the first side end of the insulating plate 210.

[0060] It is understood that in the corresponding grounding component 200 and tenon joint component: the top of the anti-detachment part 1322 is higher than the top of the first support part 1321, and / or the bottom of the anti-detachment part 1322 is lower than the bottom of the first support part 1321; when the first tenon joint 211 is inserted by the first support part 1321, the first limiting member 131 and the anti-detachment part 1322 can move the first side end of the insulating plate 210 along the width direction of the first side plate 110. In this way, the first tenon joint structure 130 can be used to limit the front-back and up-down directions of the first side end of the insulating plate 210.

[0061] Furthermore, in the corresponding grounding assembly 200 and tenon assembly: the distance between the side of the anti-detachment portion 1322 near the first limiting member 131 and the side of the first limiting member 131 near the anti-detachment portion 1322 is equal to the thickness of the insulating plate 210. This reduces the risk of loosening between the first side end of the insulating plate 210 and the first limiting member 131 and the anti-detachment portion 1322. Of course, to facilitate the insertion of the first side end of the insulating plate 210 between the first limiting member 131 and the anti-detachment portion 1322, the distance between the side of the anti-detachment portion 1322 near the first limiting member 131 and the side of the first limiting member 131 near the anti-detachment portion 1322 can be slightly greater than the thickness of the insulating plate 210.

[0062] Combination Figure 6 and Figure 7 In some embodiments, the pressure plate 143 is provided with a socket 1431; in the corresponding grounding component 200 and tenon component: the socket 1431 is located between the insertion port 14221 and the second tenon interface 212, and the tenon post 144 is sequentially inserted through the insertion port 14221, the socket 1431 and the second tenon interface 212, and the tenon post 144 is interference-fitted with the socket 1431, wherein the outer diameter of the tenon post 144 gradually increases along the direction from the second limiting member 141 to the stop block 1422.

[0063] Thus, in the corresponding grounding component 200 and tenon component: when the tenon post 144 is sequentially inserted into the insertion port 14221, the insertion hole 1431 and the second tenon interface 212, the deeper the tenon post 144 is inserted, the tighter the tenon post 144 is pressed against the hole wall of the insertion hole 1431, which can realize the connection between the tenon post 144 and the pressure plate 143. At the same time, the side wall opposite to the second support part 1421 of the second tenon interface 212 can prevent the tenon post 144 from coming out, thereby preventing the pressure plate 143 from coming out. In addition, the upper and lower side walls of the insertion port 14221 can also limit the tenon post 144 to the upper and lower positions, thereby limiting the pressure plate 143 to the upper and lower positions.

[0064] like Figure 6 , Figure 8 As shown, it should be noted that the tenon joint 144 includes a rigid column 1441 and an elastic insulating sleeve 1442 fitted over the rigid column 1441. It can be understood that the rigid column 1441 can improve the rigidity of the tenon joint 144, while the elastic insulating sleeve 1442 fitted over the rigid column 1441 can ensure that the tenon joint 144 is a non-conductive component.

[0065] Combination Figure 6 and Figure 7 Furthermore, the pressure plate 143 is provided with a third tenon joint 1432; in the tenon joint assembly: at least a portion of the second support portion 1421 passes through the third tenon joint 1432, so that the second support portion 1421 can play the role of supporting the pressure plate 143.

[0066] It is understandable that in the tenon joint assembly: the distance between the upper and lower sidewalls of the third tenon joint 1432 gradually increases along the direction from the first side plate 110 to the second side plate 120, and the upper and lower sidewalls of the third tenon joint 1432 abut against the upper and lower sidewalls of the second support portion 1421, respectively.

[0067] It is understandable that when assembling the pressure plate 143, the assembly is carried out from the first side plate 110 to the second side plate 120. When the pressure plate 143 is assembled, the upper and lower side walls of the third tenon interface 1432 will be squeezed tighter and tighter with the upper and lower side walls of the second support part 1421.

[0068] It should be noted that in the above embodiments, the specific forms of the first tenon joint structure and the second tenon joint structure can be interchanged.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A six-wire single core cable grounding box characterized by, The box comprises a box body and a grounding assembly; The box body comprises a first side plate and a second side plate spaced apart from and opposite to the first side plate, and further comprises two sets of mortise assemblies, each set of mortise assemblies comprising a first mortise structure arranged on an inner side wall of the first side plate and a second mortise structure arranged on an inner side wall of the second side plate, wherein the first mortise structure and the second mortise structure of each set of mortise assemblies are non-conductive members; The grounding assembly comprises two sets of grounding assemblies corresponding to the two sets of mortise assemblies, and each set of grounding assemblies is arranged between the first side plate and the second side plate and comprises an insulating plate and a grounding mechanism arranged on the insulating plate; In the corresponding grounding assembly and mortise assembly, the first side end of the insulating plate is connected to the first mortise structure, and the second side end of the insulating plate is connected to the second mortise structure.

2. The six-wire single-core cable grounding box according to claim 1, characterized in that, In the mortise assembly, one of the first mortise structure and the second mortise structure comprises a first limiting piece and a first mortise block, and the other one comprises a second limiting piece, a second mortise block, a pressing plate and a mortise column, wherein the first mortise block comprises a first supporting portion connected to the first limiting piece and arranged along a preset direction with the first limiting piece, the second limiting piece is arranged opposite to the first limiting piece, the second mortise block comprises a second supporting portion connected to the second limiting piece and a stopper connected to the second supporting portion, the second supporting portion is arranged opposite to the first supporting portion and arranged along the preset direction with the second limiting piece, the stopper is connected to one end of the second supporting portion away from the second limiting piece, the stopper is provided with an insertion opening penetrating through both sides of the stopper along the preset direction, and the preset direction is parallel to the width direction of the first side plate; The first side end of the insulating plate is provided with a first mortise port, and the second side end of the insulating plate is provided with a second mortise port; In the corresponding grounding assembly and mortise assembly, the first supporting portion is arranged in the first mortise port, the second supporting portion is arranged in the second mortise port, the pressing plate is arranged between the stopper and the insulating plate, and the mortise column is arranged in the insertion opening, the pressing plate and the second mortise port.

3. The six-wire single-core cable grounding box according to claim 2, characterized in that, The first mortise block further comprises an anti-disengagement portion connected to one side of the first supporting portion away from the first limiting piece; In the corresponding grounding assembly and mortise assembly, the anti-disengagement portion is limitedly matched with the first side end of the insulating plate.

4. The six-wire single-core cable grounding box according to claim 2, characterized in that, The pressing plate is provided with a insertion hole; In the corresponding grounding assembly and mortise assembly, the insertion hole is located between the insertion opening and the second mortise port, the mortise column is arranged in the insertion opening, the insertion hole and the second mortise port in sequence, and the mortise column is in interference fit with the insertion hole.

5. The six-wire single-core cable grounding box according to claim 4, characterized in that, In the mortise assembly, the outer diameter of the mortise column gradually increases along the direction from the second limiting piece to the stopper.

6. The six-wire single-core cable grounding box according to claim 2, characterized in that, The tenon joint column comprises a rigid column body and an elastic insulation sleeve sleeved outside the rigid column body.

7. The six-wire single-core cable grounding box according to claim 2, characterized by, The pressing plate is provided with a third tenon joint, and at least part of the second support portion is arranged in the third tenon joint in the tenon joint assembly.

8. The six-wire single-core cable grounding box according to claim 7, characterized in that, In the tenon joint assembly, the upper side wall and the lower side wall of the third tenon joint are respectively in abutment with the upper side wall and the lower side wall of the second support portion.

9. The six-wire single-core cable grounding box of claim 2, wherein, A plane parallel to an inner surface of the first side plate is defined as a reference plane. In the mutually corresponding grounding assembly and the tenon joint assembly, a projection of the second tenon joint on the reference plane is a first projection, a projection of the second support portion on the reference plane is a second projection, and a projection of the stopper on the reference plane is a 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.

10. The six-wire single-core cable grounding box according to claim 1, characterized in that, The two groups of grounding assemblies are arranged at intervals in a preset direction, and the projections of the two groups of grounding assemblies on a vertical plane do not coincide, wherein the preset direction is parallel to the width direction of the first side plate.

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