High-reliability cable grounding box and installation method of grounding assembly

Abstract

The invention discloses a high-reliability cable grounding box and a mounting method of a grounding assembly, and the mounting method of the grounding assembly comprises the steps: enabling a first side end of an insulating plate of the grounding assembly to be obliquely inserted into a first tenon joint structure until a first tenon joint port is inserted by a first supporting part; the second side end of the insulating plate is deflected towards the second limiting piece in the process that the first supporting part is inserted into the first tenon port until the second supporting part is inserted into the second tenon port; a pressing plate is plugged between the stop block and the insulating plate; a joggling column is arranged in the insertion opening of the check block, the pressing plate and the second joggling opening in a penetrating mode; the first edge side plate, the second edge side plate, the first joggle joint structure and the second joggle joint structure are all non-conductive components. The grounding assembly in the cable grounding box is convenient to install and high in reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of cable earthing boxes, and particularly relates to a highly reliable cable earthing box and an installation method for an earthing component. Background Art

[0002] During the laying process of high-voltage cables, an earthing system will be set at corresponding positions to conduct the induced voltage generated during the operation of the cables into the ground, eliminating the adverse effects of overvoltage and overcurrent on the operation of the cable lines. The earthing system mainly consists of an earthing box, earthing cables, return cables, etc.

[0003] In related technologies, the earthing components in the earthing box are all fixed to the box side plate by metal bolts. When installing the earthing components, one person needs to hold the earthing component while another person tightens the bolts, which is troublesome to operate. In addition, the metal bolts will also increase potential 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. For this purpose, the present invention provides a highly reliable cable earthing box and an installation method for an earthing component.

[0005] A high-reliability cable grounding box according to an embodiment of the first aspect of the present invention comprises: a box body, the box body comprising a first side panel, and a second side panel spaced apart from and arranged opposite to the first side panel; an inner side wall of the first side panel is provided with a first mortise structure, and an inner side wall of the second side panel is provided with a second mortise structure arranged opposite to the first mortise structure; the first mortise structure comprises a first limiting member and a first mortise block, the first mortise block comprises a first supporting portion connected to the first limiting member and arranged along the width direction of the first side panel with the first limiting member; the second mortise structure comprises a second limiting member and a second mortise block, the second limiting member is arranged opposite to the first limiting member, the second mortise block comprises a second supporting portion connected to the second limiting member, 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 width direction of the second side panel with the second limiting member, A stopper is connected to an end of the second supporting portion away from the second limiting member, and the stopper is provided with an insertion port, and the insertion port passes through both sides of the stopper along the width direction of the second side plate; a grounding component, the grounding component includes an insulating plate and a grounding mechanism arranged on the insulating plate, a first side end of the insulating plate is provided with a first tenon interface, and a second side end of the insulating plate is provided with a second tenon interface, the first side end of the insulating plate is arranged toward the first tenon structure and the first supporting portion is passed through the first tenon interface, and the second side end of the insulating plate is arranged toward the second tenon structure and the second supporting portion is passed through the second tenon interface; wherein, the second tenon structure also includes a pressing plate arranged between the stopper and the insulating plate, and a tenon column passing through the insertion port, the pressing plate and the second tenon interface; wherein, the first side plate, the second side plate, the first tenon structure and the second tenon structure are all non-conductive components.

[0006] The installation method of the grounding assembly according to the second aspect of the present invention is applied to the high-reliability cable grounding box of the above embodiment, comprising:

[0007] The first side end of the insulating plate of the grounding assembly is obliquely inserted into the first mortise and tenon structure until the first mortise interface is inserted into the first supporting portion, wherein when the first side end of the insulating plate is obliquely inserted into the first mortise and tenon structure, the distance between the second side end of the insulating plate and the second stopper 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 stopper along the width direction of the first side plate;

[0008] During the process of the first tenon joint being inserted into the first supporting part, the second side end of the insulating plate is deflected toward the second limiting member until the second tenon joint is inserted into the second supporting part;

[0009] Insert the pressing plate between the stopper and the insulating plate;

[0010] Pass the tenon joint column through the insertion opening of the stopper, the pressing plate, and the second tenon joint opening.

[0011] The additional aspects and advantages of the present invention will be partly given in the following description, partly become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below in conjunction with the drawings and embodiments, where:

[0013] Figure 1 is a schematic structural diagram of a cable grounding box according to an embodiment of the present invention;

[0014] Figure 2 is an exploded structural diagram of a box body according to an embodiment of the present invention;

[0015] Figure 3 is a sectional structural diagram of a box body according to an embodiment of the present invention;

[0016] Figure 4 is another sectional structural diagram of a box body according to an embodiment of the present invention;

[0017] Figure 5 is yet another sectional structural diagram of a box body according to an embodiment of the present invention;

[0018] Figure 6 is a schematic structural diagram of a side side plate according to an embodiment of the present invention;

[0019] Figure 7 is a partial sectional structural diagram of a side side plate according to an embodiment of the present invention;

[0020] Figure 8 is a schematic structural diagram of a bottom plate assembly and a box door according to an embodiment of the present invention;

[0021] Figure 9 is a schematic structural diagram of a bottom plate assembly according to an embodiment of the present invention;

[0022] Figure 10 is Figure 9 a partially enlarged view of the figure shown;

[0023] Figure 11 is Figure 10 an enlarged view of part A of the figure shown;

[0024] Figure 12 is a schematic structural diagram of a storage case according to an embodiment of the present invention;

[0025] Figure 13 Schematic diagram of a sectional structure of a storage case according to an embodiment of the present invention;

[0026] Figure 14 Schematic diagram of another sectional structure of a storage case according to an embodiment of the present invention;

[0027] Figure 15 Schematic diagram of a partial structure of a cable grounding box according to an embodiment of the present invention;

[0028] Figure 16 Schematic diagram of the structure of a cable and a grounding component according to an embodiment of the present invention;

[0029] Figure 17 Schematic diagram of the structure of a first side side plate according to an embodiment of the present invention;

[0030] Figure 18 Schematic diagram of the structure of a second side side plate according to an embodiment of the present invention;

[0031] Figure 19 Schematic diagram of a sectional structure of an insulating plate and a side side plate according to an embodiment of the present invention;

[0032] Figure 20 Schematic diagram of another sectional structure of an insulating plate and a side side plate according to an embodiment of the present invention;

[0033] Figure 21 Schematic diagram of the structure of a pressing plate according to an embodiment of the present invention;

[0034] Figure 22 Schematic diagram of the structure of an outer conductor connection part according to an embodiment of the present invention;

[0035] Figure 23 Schematic diagram of a sectional structure of a cable and a grounding component according to an embodiment of the present invention;

[0036] Figure 24 Schematic diagram of the structure of an inner conductor connection structure according to an embodiment of the present invention;

[0037] Figure 25 Schematic diagram of a partial structure of an inner conductor connection structure according to an embodiment of the present invention;

[0038] Figure 26 Schematic diagram of the structure of a clamping ring according to an embodiment of the present invention;

[0039] Figure 27 Schematic diagram of the structure of an insulating cover according to an embodiment of the present invention;

[0040] Figure 28 Schematic diagram of the structure of an outer conductor connection structure according to an embodiment of the present invention. Detailed implementation mode

[0041] As Figure 1 shown, the cable grounding box according to an embodiment of the present invention includes a box body 100.

[0042] Combined with Figure 1 and Figure 2 , the box body 100 includes a side plate assembly 110, and the side plate assembly 110 includes a plurality of connected side plates 1101. Specifically in this embodiment, the side plate assembly 110 includes a rear side plate 111 and two side side plates 112. The rear ends of the two side side plates 112 are respectively connected to the opposite ends of the rear side plate 111 along the horizontal direction, and the two side side plates 112 are arranged at intervals and opposite to each other.

[0043] Combined with Figure 2 , Figure 6 and Figure 7 , at least one side plate 1101 is provided with a rainproof structure 1102. The rainproof structure 1102 includes a plurality of rainproof parts arranged along the gravity direction. The rainproof part includes a diversion plate 11021 and a protection plate 11022. The top of the diversion plate 11021 is arranged close to the inner side of the side plate 1101, and the diversion plate 11021 is inclined gradually from top to bottom towards the outer side of the side plate 1101. The top of the protection plate 11022 is connected to the bottom of the diversion plate 11021.

[0044] It can be understood that the rainproof structure 1102 can be provided on one of the side plates 1101, or can be provided on two or more side plates 1101. Specifically in this embodiment, the rainproof structure 1102 is provided on the side side plates 112. The rainproof structure 1102 includes a plurality of rainproof parts arranged from top to bottom, and the structure of each rainproof part is the same; for each rainproof part: its diversion plate 11021 is inclined, and the top of the diversion plate 11021 is close to the inner side of the side plate 1101, and the bottom of the diversion plate 11021 is close to the outer side of the side plate 1101. In other words, the diversion plate 11021 is inclined gradually from top to bottom towards the outer side of the side plate 1101; for each rainproof part: the top of its protection plate 11022 is connected to the bottom of the diversion plate 11021, and its protection plate 11022 extends vertically downward from its top. In addition, among every two adjacent rainproof parts: the bottom of the protection plate 11022 of the upper rainproof part is arranged opposite to the outer side wall of the diversion plate 11021 of the lower rainproof part.

[0045] Furthermore, for every two adjacent rainproof parts: the bottom of the protection plate 11022 of the upper rainproof part is arranged in a staggered manner with the top of the diversion plate 11021 of the lower rainproof part, and a breakable baffle 11023 is arranged between the bottom of the protection plate 11022 of the upper rainproof part and the top of the diversion plate 11021 of the lower rainproof part.

[0046] Specifically, for every two adjacent rain-proof parts: the bottom of the protection plate 11022 of the upper rain-proof part and the top of the diversion plate 11021 of the lower rain-proof part are arranged in a horizontal dislocation, and the baffle 11023 shields the gap formed by the dislocation between the bottom of the protection plate 11022 of the upper rain-proof part and the top of the diversion plate 11021 of the lower rain-proof part.

[0047] It should be noted that the baffle 11023 is configured to be able to be broken to form a ventilation opening between the bottom of the protection plate 11022 of the upper rain-proof part and the top of the diversion plate 11021 of the lower rain-proof part.

[0048] Specifically, the baffle 11023 is a thin-wall structure, and its thickness can be set to be greater than or equal to 0.1 mm and less than or equal to 2 mm. In this way, the baffle 11023 can be knocked off or poked off with the help of tools by workers, so as to form a ventilation opening for communicating the inside of the box body 100 with the outside.

[0049] When the cable grounding box of the present invention is applied: if the electrical components inside it do not need heat dissipation and ventilation, or the area where it is installed is in a humid environment for a long time, then there is no need to break the baffle 11023, and the whole box body 100 has a high sealing effect, which can reduce the risk of damage to the electrical components inside the box body 100 due to immersion in water; if the electrical components inside it need heat dissipation and ventilation, then the baffle 11023 can be broken to form a ventilation opening for ventilation. Further, when the baffle 11023 is broken, in rainy weather, after the rain falls on the side plate 1101, most of it will flow down along the outer surface of the protection plate 11022, and a small part will flow to the lower surface of the bottom of the protection plate 11022 and drip on the diversion plate 11021 and flow down along the diversion plate 11021, and it is very difficult to enter the inside of the box body 100. Therefore, it can also play a role in preventing rain.

[0050] As Figure 5 shown, in some embodiments, sealing strips 1112 are provided on the inner side walls at opposite ends of the rear side plate 111 in the horizontal direction, and the two side plates 112 are respectively in sealing abutment with the sealing strips 1112 at opposite ends of the rear side plate 111 in the horizontal direction.

[0051] It can be understood that after the side plate 112 and the rear side plate 111 are properly matched, the side plate 112 abuts against the sealing strip 1112, so as to realize the sealing between the side plate 112 and the rear side plate 111.

[0052] Further, on the inner walls at the horizontally opposite ends of the rear side plate 111, first mounting grooves 1111 are provided. A sealing strip 1112 is disposed in each first mounting groove 1111. The first mounting groove 1111 is used to position the sealing strip 1112, improving the positioning accuracy of the sealing strip 1112. Moreover, it can also prevent the sealing strip 1112 from shifting when being squeezed by the side plate 112.

[0053] Combined Figure 2 with Figure 5 , further, the box body 100 further includes a door frame 120 and a door 130. The door frame 120 is connected to the front ends of the two side plates 112. A sealing ring 132 is provided on the inner wall of the door 130. When the door 130 is in a closed state, the door 130 covers the front side of the door frame 120 and makes the sealing ring 132 abut against the door frame 120.

[0054] It can be understood that when the door 130 is closed, the door 130 covers the front side of the door frame 120 and makes the sealing ring 132 abut against the door frame 120. In this way, the sealing between the door 130 and the door frame 120 can be achieved.

[0055] Specifically, second mounting grooves 131 are provided around the inner wall of the door 130. The sealing ring 132 is disposed in the second mounting grooves 131. The second mounting grooves 131 are used to position the sealing ring 132, improving the positioning accuracy of the sealing ring 132. Moreover, it can also prevent the sealing ring 132 from shifting when being squeezed by the door frame 120.

[0056] Further, ribs 121 are formed on the outer wall of the door frame 120. The ribs 121 are used to abut against the sealing ring 132 to form a seal.

[0057] As Figure 2 shown, it should be noted that the door 130 is rotatably connected to one of the side plates 112 by means of a hinge. Among them, the number of hinges can be multiple, thereby improving the reliability of the connection between the door 130 and the side plate 112. In addition, by using multiple hinges to connect the door 130, the sealing effect of the door 130 when in a closed state can also be better.

[0058] Further, a door lock is also provided on the door 130, which can play a role in locking the door.

[0059] As Figure 2 shown, in some embodiments, the box body 100 further includes a bottom plate assembly 160, and the bottom plate assembly 160 is connected to the bottoms of the plurality of side plates 1101.

[0060] As Figures 9 to 11As shown, the bottom plate assembly 160 is provided with a wire passing through hole 1601 penetrating through the upper and lower sides of the bottom plate assembly 160, and a wire passing structure 163 is arranged in the wire passing through hole 1601.

[0061] Further, as shown in Figure 11 , the wire passing structure 163 includes a plurality of cable passing coils 1631. The inner diameters of different cable passing coils 1631 are different. The cable passing coil 1631 with a larger inner diameter is arranged outside the cable passing coil 1631 with a smaller inner diameter. A connecting portion 1632 is arranged between every two adjacent cable passing coils 1631, and between the cable passing coil 1631 with the largest inner diameter and the hole wall of the wire passing through hole 1601.

[0062] It can be understood that the plurality of cable passing coils 1631 are concentric structures, and the plurality of cable passing coils 1631 are all concentrically arranged with the wire passing through hole 1601. Among them, the cable passing coil 1631 can be a complete circular structure, or a non-closed circular structure. Of course, the cable passing coil 1631 can also be other special-shaped structures. Every two adjacent cable passing coils 1631 are connected by the connecting portion 1632, and the cable passing coil 1631 with the largest inner diameter and the hole wall of the wire passing through hole 1601 are connected by the connecting portion 1632.

[0063] Among them, the connecting portion 1632 between two adjacent cable passing coils 1631 and the two cable passing coils 1631 connected thereto are detachably connected. In other words, the connecting portion 1632 and the cable passing coil 1631 connected thereto can be separated. The ways in which the connecting portion 1632 and the cable passing coil 1631 connected thereto are separated include, but are not limited to, breaking the connecting portion between the connecting portion 1632 and the cable passing coil 1631. Of course, in other embodiments, the connecting portion 1632 between two adjacent cable passing coils 1631 and one of the two cable passing coils 1631 connected thereto are detachably connected.

[0064] In addition, the connecting portion 1632 between the cable passing coil 1631 with the largest inner diameter and the hole wall of the wire passing through hole 1601 and the cable passing coil 1631 and / or the hole wall of the wire passing through hole 1601 connected thereto are detachably connected.

[0065] In the bottom plate assembly 160 of the present invention, each cable passing coil 1631 is a detachable structure. According to the diameter of the cable 300, the cable passing coil 1631 with a smaller inner diameter can be knocked off, so that the cable 300 can pass through the cable passing coil 1631 matching the diameter of the cable 300. In this way, both the requirement for the cable 300 to pass through is satisfied, and at the same time, it can be ensured that there is no large gap between the inner wall of the cable passing coil 1631 and the cable 300, which can reduce the usage amount of the sealant, save costs, improve the adhesion ability of the sealant, reduce the risk of sealant shedding, and improve the sealing performance.

[0066] Furthermore, a plurality of connecting parts 1632 are arranged between every two adjacent cable passing coils 1631 around the axis of the wire passing through hole 1601. In this way, the connection reliability between every two adjacent cable passing coils 1631 can be improved.

[0067] Similarly, a plurality of connecting parts 1632 are arranged between the cable passing coil 1631 with the largest inner diameter and the hole wall of the wire passing through hole 1601 around the axis of the wire passing through hole 1601. In this way, the connection reliability between the cable passing coil 1631 with the largest inner diameter and the hole wall of the wire passing through hole 1601 can be improved.

[0068] It should be noted that the thickness of the connecting part 1632 is smaller than the thickness of the cable passing coil 1631, and the thickness directions of the connecting part 1632 and the cable passing coil 1631 are both parallel to the axial direction of the wire passing through hole 1601. In this way, the connecting part 1632 can be knocked off more easily. Among them, the thickness of the connecting part 1632 can be set between 1 mm and 3 mm.

[0069] Among them, the cable passing coil 1631, the connecting part 1632 and the hole wall of the wire passing through hole 1601 can be an integrally formed structure.

[0070] It should be noted that in order to adapt to more types of cables 300, the wire passing through hole 1601 may not be set as a regular circle and can be other special-shaped structures.

[0071] As Figure 9 shown, in some embodiments, the bottom plate assembly 160 is further provided with a closed groove 165, and the part surrounded by the groove 165 is defined as a knock-off shutter 166. It can be understood that the knock-off shutter 166 can be knocked off to form a wire passing opening on the bottom plate assembly 160 for the penetration of other cables 300. Of course, when no additional cable 300 needs to pass through, the knock-off shutter 166 is not knocked off to ensure the sealing effect of the bottom plate assembly 160.

[0072] Combined Figure 9 with Figure 10, in some embodiments, the bottom plate assembly 160 includes an outer frame 161 and a flap 162. The outer frame 161 defines an opening, and the flap 162 is rotatably connected to the outer frame 161 and can be lifted to cover the opening. The wire passing through hole 1601 is formed in the flap 162.

[0073] It can be understood that the flap 162 is rotatably connected to the outer frame 161, and the flap 162 is configured to be able to be flipped to adjust the angle. In this way, even if the cable 300 passes through the bottom plate assembly 160 and penetrates into the interior of the box body 100, the cable 300 has a greater degree of freedom and can be conveniently inserted into different positions.

[0074] Specifically, the flap 162 includes a first flap 1621 and a second flap 1622. One side of the first flap 1621 is rotatably connected to one side of the opening of the outer frame 161, and one side of the second flap 1622 is rotatably connected to the other side of the opening of the outer frame 161, and the first flap 1621 and the second flap 1622 are arranged in parallel; the wire passing through hole 1601 includes a first half hole 1601a formed on the side of the first flap 1621 close to the second flap 1622, and a second half hole 1601b formed on the side of the second flap 1622 close to the first flap 1621. Part of the structure of each cable passing coil 1631 is arranged in the first half hole 1601a, and the other part of the structure of each cable passing coil 1631 is arranged in the second half hole 1601b.

[0075] It should be noted that the flap 162 is configured to be able to flip upward relative to the outer frame 161 and is restricted from flipping downward relative to the outer frame 161. In this way, when the cable 300 passes through the bottom plate assembly 160 and penetrates into the box body 100, there is no need to worry about the flap 162 flipping downward and affecting the assembly.

[0076] Specifically, the first flap 1621 is rotatably connected to the outer frame 161 through a first hinge 1641. The first hinge 1641 is arranged on the upper side of the outer frame 161. One hinge of the first hinge 1641 is connected to the upper side surface of the outer frame 161, and the other hinge is connected to the upper side surface of the first flap 1621. When the first flap 1621 is in the closed state, the side wall of the first flap 1621 close to its rotation axis fits with the side wall of the opening of the outer frame 161, and the side wall of the opening restricts the first flap 1621 from flipping downward.

[0077] Similarly, the second flap 1622 is rotatably connected to the outer frame 161 through a second hinge 1642. The second hinge 1642 is disposed on the upper side of the outer frame 161. One hinge of the second hinge 1642 is connected to the upper side surface of the outer frame 161, and the other hinge is connected to the upper side surface of the second flap 1622. When the second flap 1622 is in the closed state, the side wall of the second flap 1622 close to its rotation axis fits against the side wall of the opening of the outer frame 161, and the side wall of the opening restricts the second flap 1622 from flipping downwards.

[0078] As Figure 8 , Figure 9 shown, in some embodiments, a raised protrusion 167 is provided on the upper surface of the bottom plate assembly 160 and is located on the rotation path of the door 130. The raised protrusion 167 gradually increases in height along the closing direction of the door 130. In this way, during the process of closing the door 130, the door 130 will be gradually lifted, thereby making the door 130 more stable and reducing the risk of the door 130 shaking. It can be understood that the more stable door 130 can make the abutting effect between the sealing ring 132 inside the door 130 and the door frame 120 better, thereby improving the sealing performance.

[0079] Specifically, two raised protrusions 167 are provided on the bottom plate assembly 160, and the raised protrusions 167 are arranged on the upper surface of the bottom plate assembly 160, one on the left and one on the right. In this way, the height of the left and right sides of the door 130 being lifted can be made more consistent.

[0080] As Figure 2 , Figure 3 shown, the box body 100 further includes a box cover 140. The box cover 140 is disposed on the tops of the plurality of side plates 1101, and the projection of the box cover 140 on the horizontal plane covers the projection of the plurality of side plates 1101 on the horizontal plane. In this way, the box cover 140 can play a role in shielding rain and reduce the risk of rainwater entering the interior of the box body 100.

[0081] As Figures 2 to 4 shown, in some embodiments, the box body 100 further includes a storage shell 150 disposed on the side plate assembly 110. The four peripheral edges of the storage shell 150 are disposed on the respective side plates 1101. Among them, the storage shell 150 can be used for installing some electrical components, such as a smart processing device.

[0082] Furthermore, the four peripheral edges of the box cover 140 wrap around the four sides of the storage shell 150, and the four sides of the storage shell 150 wrap around the four sides of the side plate assembly 110. When it rains, most of the rainwater can flow along the box cover 140 and reduce the risk of entering the interior of the box body 100.

[0083] As Figure 12As shown, the storage case 150 includes a bottom case 151 and an upper cover 152. The bottom case 151 has a case opening, and the upper cover 152 is disposed on the case opening with the edge of the upper cover 152 surrounding the edge of the case opening.

[0084] Specifically, the bottom case 151 is a hollow structure with a case opening at the top, and the upper cover 152 is used to cover the case opening to seal it. Among them, the edge of the upper cover 152 surrounding the edge of the case opening can further improve the sealing effect.

[0085] Furthermore, the upper surface of the upper cover 152 has a diversion structure 1521 and a drainage groove 1522 located on the lower side of the diversion structure 1521. The bottom wall of the drainage groove 1522 is provided with a drainage hole 1523. The drainage hole 1523 is spaced apart from the internal space of the bottom case 151, and the bottom of the drainage hole 1523 is a non-blocking structure.

[0086] It can be understood that if condensation appears inside the box body 100 due to the change of day and night temperature difference, when the condensation drops on the upper cover 152, the condensation will enter the drainage groove 1522 along the diversion structure 1521 and then be discharged through the drainage hole 1523. In this way, the risk of condensation entering the interior of the storage case 150 and damaging the electrical components inside the storage case 150 can be reduced.

[0087] As Figure 3 shown, furthermore, the storage case 150 is disposed in the space surrounded by the side plate assembly 110 and is located at the upper end of the side plate assembly 110, and the upper cover 152 faces the box cover 140.

[0088] It can be understood that the setting of the upper cover 152 is equivalent to a partition member, which can separate the space between the bottom case 151 and the box cover 140, that is, separate the internal space of the bottom case 151 and the internal space of the upper cover 152, so that a larger space is divided into two smaller spaces. Among them, the smaller space means that the total volume of air becomes smaller, and the total amount of water vapor that can be accommodated also decreases accordingly. In addition, the formation of condensation is often related to the temperature difference. When warm and humid air encounters the surface of an object with a lower temperature, water vapor is likely to condense into water droplets on the surface of the object. Reducing the space can make the temperature distribution in the space more uniform and reduce the temperature gradient, because a smaller space is easier to achieve the overall temperature balance, and the convection of cold air and hot air is relatively weak, and it is not easy to have the situation of local temperature being too low or too high, thereby reducing the risk of water vapor condensation caused by the temperature difference.

[0089] It should be noted that the problem of condensation can also be further improved by adding multiple partition members in the space between the bottom case 151 and the box cover 140.

[0090] Furthermore, heat-insulating cotton is provided on the wall surface of the space formed by enclosing the box cover 140 and the storage case 150. In this way, while being able to slow down the speed of temperature change inside the box body 100, it can also adsorb a small amount of condensed water and reduce the dripping of condensed water.

[0091] Combined Figure 13 with Figure 14 , in some embodiments, the middle part of the upper cover 152 arches to form a diversion structure 1521, and the drainage groove 1522 is arranged on the side of the upper cover 152.

[0092] Specifically, the diversion structure 1521 includes an inclined first diversion surface 1521a and an inclined second diversion surface 1521b. The first diversion surface 1521a and the second diversion surface 1521b are arranged in parallel, and the higher sides of the first diversion surface 1521a and the second diversion surface 1521b are both close to the middle of the upper surface of the upper cover 152, and the lower sides of the first diversion surface 1521a and the second diversion surface 1521b are respectively located on both sides of the upper cover 152; wherein, the drainage groove 1522 includes a first drainage groove 1522a arranged on the lower side of the first diversion surface 1521a and a second drainage groove 1522b arranged on the lower side of the second diversion surface 1521b.

[0093] It can be understood that drainage holes 1523 are provided on the bottom walls of the first drainage groove 1522a and the second drainage groove 1522b. When condensed water drips on the upper surface of the upper cover 152, the condensed water can enter the corresponding drainage groove 1522 along the first diversion surface 1521a and / or the second diversion surface 1521b, and is discharged through the drainage holes 1523 on the drainage groove 1522.

[0094] Furthermore, the bottom wall of the drainage groove 1522 can be set to be inclined, and the drainage holes 1523 are arranged at the lower part of the bottom wall of the drainage groove 1522.

[0095] Furthermore, the bottom case 151 is provided with through holes opposite to the drainage holes 1523, so that the bottom case 151 can be prevented from blocking the bottom end of the drainage holes 1523.

[0096] As Figure 12 shown, in some embodiments, clamping grooves 1511 are arranged on both sides of the bottom case 151 opposite to the case opening, and the opposite sides of the upper cover 152 are respectively clamped in the clamping grooves 1511 on both sides of the case opening opposite to the case opening. In this way, the fixation of the upper cover 152 can be realized.

[0097] Combined Figure 2 、 Figure 7 and Figure 14 shown, further, a breakable closed window 1512 opposite to the rainproof structure 1102 is provided on the side wall of the bottom case 151.

[0098] It is understandable that if there is no need to ventilate and dissipate heat from the electrical components in the storage case 150, the closed window 1512 may not be broken; if it is necessary to ventilate and dissipate heat from the electrical components in the storage case 150, the closed window 1512 can be broken, and the baffle 11023 can also be broken for ventilation.

[0099] It should be noted that a plurality of parallel transverse recessed grooves can be provided on the side wall of the bottom case 151, so that this part of the side wall of the bottom case 151 can be easily broken.

[0100] As Figure 15 shown, the cable grounding box further includes a grounding component 200 disposed in the box body 100.

[0101] Among the two side plates 112, one is the first side plate 1121 and the other is the second side plate 1122. The first side plate 1121 and the second side plate 1122 are spaced apart and oppositely arranged.

[0102] Combined with Figure 15 、 Figure 17 and Figure 18 , a first mortise joint structure 11211 is provided on the inner side wall of the first side plate 1121, and a second mortise joint structure 11221 opposite to the first mortise joint structure 11211 is provided on the inner side wall of the second side plate 1122; it can be understood that the two side ends of the grounding component 200 are respectively connected to the first mortise joint structure 11211 and the second mortise joint structure 11221, so as to achieve fixation.

[0103] As Figure 17 shown, the first mortise joint structure 11211 includes a first limiting member 112111 and a first mortise joint block 112112. The first mortise joint block 112112 includes a first supporting portion 1121121 connected to the first limiting member 112111 and arranged along the width direction of the first side plate 1121 with the first limiting member 112111.

[0104] Specifically, the first limiting member 112111 is connected to the inner side wall of the first side plate 1121 and extends vertically. The first mortise joint block 112112 is connected to one side of the first limiting member 112111 along the width direction of the first side plate 1121, and the first mortise joint block 112112 has a first supporting portion 1121121. The first supporting portion 1121121 is arranged along the width direction of the first side plate 1121 with the first limiting member 112111. Among them, the first limiting member 112111 protrudes more from the inner side wall of the first side plate 1121 than the first supporting portion 1121121.

[0105] As Figure 18As shown, the second tenon joint structure 11221 includes a second limiting member 112211 and a second tenon joint block 112212. The second limiting member 112211 is disposed opposite to the first limiting member 112111. The second tenon joint block 112212 includes a second supporting portion 1122121 connected to the second limiting member 112211 and a blocking block 1122122 connected to the second supporting portion 1122121. The second supporting portion 1122121 is disposed opposite to the first supporting portion 1121121 and is arranged with the second limiting member 112211 along the width direction of the second side plate 1122. The blocking block 1122122 is connected to one end of the second supporting portion 1122121 away from the second limiting member 112211. The blocking block 1122122 is provided with an insertion opening 11221221, and the insertion opening 11221221 penetrates through both sides of the blocking block 1122122 along the width direction of the second side plate 1122.

[0106] Specifically, the second limiting member 112211 is connected to the inner side wall of the second side plate 1122 and extends vertically, and the second limiting member 112211 is disposed in parallel, spaced apart and opposite to the first limiting member 112111; the second tenon joint block 112212 is connected to one side of the second limiting member 112211 along the width direction of the second side plate 1122; the second supporting portion 1122121 is arranged with the second limiting member 112211 along the width direction of the second side plate 1122 and is disposed opposite to the first supporting portion 1121121; wherein, the second limiting member 112211 protrudes more from the inner side wall of the second side plate 1122 than the second supporting portion 1122121; the blocking block 1122122 is connected to one end of the second supporting portion 1122121 away from the second limiting member 112211, and the blocking block 1122122 protrudes more from the inner side wall of the second side plate 1122 than the second supporting portion 1122121. The blocking block 1122122 is spaced apart from the second limiting member 112211 along the width direction of the second side plate 1122, and a gap is formed between the blocking block 1122122 and the second limiting member 112211. Wherein, the insertion opening 11221221 on the blocking block 1122122 penetrates through both sides of the blocking block 1122122 along the width direction of the second side plate 1122 and communicates with the gap.

[0107] As Figure 16 shown, the grounding assembly 200 includes an insulating plate 210 and a grounding mechanism 220 disposed on the insulating plate 210. A first tenon interface 211 is provided at the first side end of the insulating plate 210, and a second tenon interface 212 is provided at the second side end of the insulating plate 210. Wherein, combining Figure 19 and Figure 20, the first side end of the insulating plate 210 faces the first tenon joint structure 11211 and enables the first supporting portion 1121121 to pass through the first tenon joint 211, and the second side end of the insulating plate 210 faces the second tenon joint structure 11221 and enables the second supporting portion 1122121 to pass through the second tenon joint 212.

[0108] Specifically, the insulating plate 210 is used to carry the grounding mechanism 220, the grounding mechanism 220 is used to connect the cable 300, and the two side ends of the insulating plate 210 are respectively used to connect with the first tenon joint structure 11211 and the second tenon joint structure 11221. The insulating plate 210 includes two opposite side ends, one of which is the first side end and the other is the second side end. The first tenon joint 211 is formed at the first side end of the insulating plate 210, and the second tenon joint 212 is formed at the second side end of the insulating plate 210. The first side end of the insulating plate 210 faces the first tenon joint structure 11211 and enables the first supporting portion 1121121 to pass through the first tenon joint 211. In this way, under the action of the first supporting portion 1121121, the up-and-down direction limit of the first side end of the insulating plate 210 can be realized. In addition, under the action of the first limiting member 112111, one side of the first side end of the insulating plate 210 can be limited along the width direction of the first side plate 1121. The second side end of the insulating plate 210 faces the second tenon joint structure 11221 and enables the second supporting portion 1122121 to pass through the second tenon joint 212. In this way, under the action of the second supporting portion 1122121, the up-and-down direction limit of the second side end of the insulating plate 210 can be realized. In addition, under the action of the second limiting member 112211, one side of the second side end of the insulating plate 210 can be limited along the width direction of the second side plate 1122.

[0109] As Figure 20 shown, further, the second tenon joint structure 11221 further includes a pressing plate 112213 and a tenon joint column 112214. The pressing plate 112213 is disposed between the stopper 1122122 and the insulating plate 210, and the tenon joint column 112214 passes through the insertion port 11221221 of the stopper 1122122, the pressing plate 112213, and the second tenon joint 212.

[0110] It can be understood that the pressing plate 112213 is disposed between the stopper 1122122 and the insulating plate 210. The pressing plate 112213 can press against the second side end of the insulating plate 210. In this way, the entire insulating plate 210 itself is fixed to the box body 100. The tenon joint column 112214 passes through the insertion port 11221221 of the stopper 1122122, the pressing plate 112213, and the second tenon joint 212. At this time, the tenon joint column 112214 restricts the pressing plate 112213 from disengaging in the direction away from the second support portion 1122121, and the positioning of the pressing plate 112213 can be achieved.

[0111] 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 tenon joint structure 11211 until the first tenon joint 211 is inserted by the first support portion 1121121; it should be noted that when the first side end of the insulating plate 210 is obliquely inserted into the first tenon joint structure 11211, 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 member 112211 in the width direction of the second side plate 1122 is larger than the distance between the first side end of the insulating plate 210 and the first limiting member 112111 in the width direction of the first side plate 1121; wherein, during the process of the first tenon joint 211 being inserted by the first support portion 1121121, the second side end of the insulating plate 210 can be deflected towards the second limiting member 112211 until the second tenon joint 212 is inserted by the second support portion 1122121; then, the pressing plate 112213 is inserted between the stopper 1122122 and the insulating plate 210; finally, the tenon joint column 112214 passes through the insertion port 11221221 of the stopper 1122122, the pressing plate 112213, and the second tenon joint 212, thereby restricting the pressing plate 112213 from disengaging in the direction away from the second support portion 1122121 and achieving the positioning of the pressing plate 112213. During 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 can be avoided, and the entire operation can be independently completed by a single worker, and the operation is simple.

[0112] As Figure 20 shown, it should be noted that a plane parallel to the inner plate surface of the first side plate 1121 is defined as a reference plane. The projection of the second tenon joint 212 on the reference plane is the first projection, the projection of the second support portion 1122121 on the reference plane is the second projection, and the projection of the stopper 1122122 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; the bottom ends of the second projection and the third projection are not lower than the bottom end of the first projection.

[0113] Thus, during the process of assembling the grounding component 200, when the first tenon interface 211 is inserted by the first supporting part 1121121, and the second side end of the insulating plate 210 is deflected towards the second limiting part 112211 until the second tenon interface 212 is ready for insertion by the second supporting part 1122121, since the dimension of the second tenon interface 212 in the height direction is greater than the dimensions of the second supporting part 1122121 and the stopper 1122122 in the height direction of the second supporting part 1122121, therefore, the second supporting part 1122121 and the stopper 1122122 will not interfere with the step of "deflecting the second side end of the insulating plate 210 towards the second limiting part 112211 until the second tenon interface 212 is ready for insertion by the second supporting part 1122121".

[0114] Combined Figure 17 with Figure 19 , further, the first tenon block 112112 further includes an anti - detachment part 1121122 connected to the side of the first supporting part 1121121 away from the first limiting part 112111, and the anti - detachment part 1121122 is in limit cooperation with the first side end of the insulating plate 210.

[0115] It can be understood that the top of the anti - detachment part 1121122 is higher than the top of the first supporting part 1121121, and / or the bottom of the anti - detachment part 1121122 is lower than the bottom of the first supporting part 1121121; when the first tenon interface 211 is inserted by the first supporting part 1121121, the first limiting part 112111 and the anti - detachment part 1121122 can limit the movement of the first side end of the insulating plate 210 in the width direction of the first side plate 1121. Thus, relying on the first tenon joint structure 11211, the front - back, up - down direction limitation of the first side end of the insulating plate 210 can be realized.

[0116] Further, the distance between the side of the anti - detachment part 1121122 close to the first limiting part 112111 and the side of the first limiting part 112111 close to the anti - detachment part 1121122 is equal to the thickness of the insulating plate 210. Thus, the risk of loosening of the first side end of the insulating plate 210 between the first limiting part 112111 and the anti - detachment part 1121122 can be reduced. Of course, for the convenience of inserting the first side end of the insulating plate 210 between the first limiting part 112111 and the anti - detachment part 1121122, the distance between the side of the anti - detachment part 1121122 close to the first limiting part 112111 and the side of the first limiting part 112111 close to the anti - detachment part 1121122 can be slightly greater than the thickness of the insulating plate 210.

[0117] Such as Figure 20 、 Figure 21As shown, in some embodiments, the pressing plate 112213 is provided with a jack 1122131 located between the insertion opening 11221221 and the second mortise interface 212. The mortise column 112214 is sequentially inserted through the insertion opening 11221221, the jack 1122131, and the second mortise interface 212, and the mortise column 112214 is in interference fit with the jack 1122131. Wherein, the outer diameter of the mortise column 112214 gradually increases along the direction from the second limiting member 112211 to the stopper 1122122.

[0118] In this way, when the mortise column 112214 is sequentially inserted through the insertion opening 11221221, the jack 1122131, and the second mortise interface 212, as the insertion depth of the mortise column 112214 becomes deeper, the mortise column 112214 is squeezed more tightly against the hole wall of the jack 1122131, so that the connection between the mortise column 112214 and the pressing plate 112213 can be realized. At the same time, the side wall of the second mortise interface 212 opposite to the second supporting portion 1122121 can prevent the mortise column 112214 from coming out, thereby preventing the pressing plate 112213 from coming out.

[0119] It should be noted that the upper side wall and the lower side wall of the insertion opening 11221221 can also limit the mortise column 112214 up and down, so as to limit the pressing plate 112213 up and down.

[0120] As Figure 20 、 Figure 21 As shown, in some embodiments, the pressing plate 112213 is provided with a third mortise interface 1122132 on the side close to the second supporting portion 1122121, and at least a part of the second supporting portion 1122121 is inserted through the third mortise interface 1122132. In this way, the second supporting portion 1122121 can play a role in supporting the pressing plate 112213.

[0121] Furthermore, the upper side wall and the lower side wall of the third mortise interface 1122132 are respectively abutted against the upper side wall and the lower side wall of the second supporting portion 1122121. In this way, the second supporting portion 1122121 can also limit the up and down movement of the pressing plate 112213, and this way can also clamp the pressing plate 112213 on the second supporting portion 1122121, so as to realize the connection between the pressing plate 112213 and the second supporting portion 1122121.

[0122] Wherein, the distance between the upper side wall and the lower side wall of the third mortise interface 1122132 gradually increases along the direction from the first side side plate 1121 to the second side side plate 1122.

[0123] It can be understood that when assembling the pressing plate 112213, it is assembled in the direction from the first side plate 1121 to the second side plate 1122. When the pressing plate 112213 is assembled, the upper side wall and the lower side wall of the third tenon interface 1122132 will be squeezed tighter and tighter against the upper side wall and the lower side wall of the second supporting part 1122121.

[0124] It should be noted that the side plate assembly 110, the first tenon joint structure 11211, and the second tenon joint structure 11221 described above are all non-conductive components; specifically, the first side plate 1121, the second side plate 1122, the first limiting member 112111, the first tenon joint block 112112, the second limiting member 112211, the second tenon joint block 112212, the pressing plate 112213, and the tenon joint column 112214 are all non-conductive components. Among them, these components can be made entirely of insulating materials, or they can be non-conductive by coating or wrapping an insulating layer on the surface.

[0125] In this way, by means of the first tenon joint structure 11211 and the second tenon joint structure 11221, the insulating plate 210 is connected to the side plate 1101. Compared with the traditional method of using metal bolts to connect the insulating plate 210 to the side plate 1101: it avoids the problem that the sharp corners and edges of the metal bolts cause the air around them to ionize under the action of a strong electric field, forming corona discharge. Corona discharge will trigger a series of chemical reactions, generating strongly corrosive substances such as ozone, nitric oxide, and nitrogen dioxide, which can easily cause corrosion of the conductors of the high-voltage grounding assembly 200, reduce the conductivity of the conductors, and even cause conductor heating failures. In addition, corona discharge will generate high-frequency pulse currents, and the various higher harmonics contained therein will cause radio interference to the grounding box's own intelligent processing device and even other surrounding equipment; corona discharge consumes energy, increases the power loss of the transmission line, causes unnecessary energy loss in the power system, and affects the transmission efficiency; it also avoids the problem of charge accumulation. Specifically, it avoids the problem that if the charges on the metal bolts cannot be released in time, they may reach a certain electric potential, and when the electric potential is high enough, electrostatic discharge will occur. This kind of discharge may ignite flammable and explosive gases and the combustible mixture formed by suspended dust and air, resulting in fires or even explosion accidents, seriously threatening the safety of the cable operation line; it also avoids the problem of electric field concentration. Specifically, the angular part of the suspended metal bolt will cause electric field concentration, increasing the electric field strength in this area. When the electric field strength exceeds the gas breakdown voltage, arc discharge may occur, resulting in equipment failure or damage.

[0126] In addition, in the traditional method of using metal bolts to connect the insulating plate 210 and the side plate 1101, in order to overcome the influence brought by the metal bolts, it is necessary to leave a relatively large insulation distance between the metal bolts and the conductive grounding mechanism 220, so that the internal space of the box body 100 is relatively large, resulting in a large volume of the entire cable grounding box; while using the first tenon joint structure 11211 and the second tenon joint structure 11221 to connect the insulating plate 210 and the side plate 1101, there is no need to consider the insulation distance between the tenon joint structure and the grounding mechanism 220, which can make the internal space of the box body 100 smaller, thereby reducing the volume of the cable grounding box.

[0127] The present invention also provides an installation method for the grounding assembly of the cable grounding box in the above embodiment, including:

[0128] S100, inserting the first side end of the insulating plate 210 of the grounding assembly 200 obliquely towards the first tenon joint structure 11211 until the first tenon interface 211 is inserted by the first support portion 1121121. Among them, when the first side end of the insulating plate 210 is obliquely inserted towards the first tenon joint structure 11211, the distance between the second side end of the insulating plate 210 and the second limiting member 112211 along the width direction of the second side plate 1122 is larger than the distance between the first side end of the insulating plate 210 and the first limiting member 112111 along the width direction of the first side plate 1121;

[0129] S200, deflecting the second side end of the insulating plate 210 towards the second limiting member 112211 during the process of inserting the first tenon interface 211 by the first support portion 1121121 until the second tenon interface 212 is inserted by the second support portion 1122121;

[0130] S300, inserting a pressure plate 112213 between the stopper 1122122 and the insulating plate 210;

[0131] S400, passing a tenon joint column 112214 through the insertion port 11221221 of the stopper 1122122, the pressure plate 112213, and the second tenon interface 212.

[0132] Specifically, when installing the grounding component, first, the first side end of the insulating plate 210 of the grounding component 200 is obliquely inserted towards the first tenon joint structure 11211 until the first tenon joint 211 is inserted by the first supporting portion 1121121. It should be noted that when the first side end of the insulating plate 210 is obliquely inserted towards the first tenon joint structure 11211, 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 member 112211 along the width direction of the second side plate 1122 is larger than the distance between the first side end of the insulating plate 210 and the first limiting member 112111 along the width direction of the first side plate 1121. Among them, during the process of the first tenon joint 211 being inserted by the first supporting portion 1121121, the second side end of the insulating plate 210 can be deflected towards the second limiting member 112211 until the second tenon joint 212 is provided for insertion by the second supporting portion 1122121. Then, a pressing plate 112213 is stuffed between the stopper 1122122 and the insulating plate 210, and the third tenon joint 1122132 on the pressing block is provided for insertion by the second supporting portion 1122121. Finally, a tenon joint column 112214 is passed through the insertion opening 11221221, the insertion hole 1122131 of the stopper 1122122, and the second tenon joint 212, so as to limit the pressing plate 112213 from disengaging in the direction away from the second supporting portion 1122121, and realize the positioning of the pressing plate 112213. During the process of assembling the grounding component 200 into the box body 100 of the cable grounding box of the present invention, bolt assembly can be avoided, and the whole operation can be independently completed by a single staff member, and the operation is simple.

[0133] As Figure 16 shown, the connection structure between the cable 300 and the grounding component 200 is specifically as follows:

[0134] As Figure 16 shown, 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 for connecting with the grounding component 200, the outer layer of the cable 300 is peeled off so that the outer conductor 320 is exposed. At the same time, in a section of the cable 300 for connecting with the grounding component 200, at a position 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 peeled off so that the inner conductor 310 is exposed.

[0135] As Figure 16As shown, the grounding mechanism 220 includes an inner conductor connection part 221 and an outer conductor connection part 222. The inner conductor 310 of the cable 300 is used to connect with the inner conductor connection part 221, so as to realize the grounding of the inner conductor 310 of the cable 300; the outer conductor 320 of the cable 300 is used to connect with the outer conductor connection part 222, so as to realize the connection of the outer conductor 320 of the cable 300; it should be noted that both the inner conductor connection part 221 and the outer conductor connection part 222 are arranged on the insulating board 210, and the insulating board 210 is used to support the inner conductor connection part 221 and the outer conductor connection part 222, while both the inner conductor connection part 221 and the outer conductor connection part 222 are made of conductive materials and are grounded through other conductive components.

[0136] As Figure 23 shown, the connection structure between the cable 300 and the grounding assembly 200 includes an inner conductor connection structure 230, and the inner conductor connection structure 230 is used to connect the inner conductor 310 of the cable 300 with the inner conductor connection part 221; among them, as Figure 16 shown, the inner conductor connection part 221 is provided with an inner conductor insertion hole 2211; as Figure 23 、 Figure 24 shown, the inner conductor connection structure 230 includes a first plug 231, a first elastic conductor 232 and a clamping ring 233.

[0137] The first plug 231 is used to sleeved outside the inner conductor 310 of the cable 300.

[0138] Specifically, the first plug 231 is a tubular structure and is used to sleeved outside the inner conductor 310 of the cable 300. Among them, the first plug 231 can be in interference fit with the inner conductor 310.

[0139] It should be noted that the first plug 231 can be made of conductive materials such as copper or aluminum, and the first plug 231 and the inner conductor 310 of the cable 300 can conduct electricity.

[0140] Combined Figure 23 with Figure 24 , the first elastic conductor 232 is sleeved outside the first plug 231.

[0141] Specifically, the first elastic conductor 232 is fixedly sleeved outside the first plug 231, and the first elastic conductor 232 and the first plug 231 can be in interference fit. In addition, the first elastic conductor 232 can be made of materials such as copper, copper alloy, aluminum or aluminum alloy, or other materials that are easier to conduct electricity, such as silver or gold, can be plated on the surface of the above materials, so as to improve the conductivity between the inner conductor 310 and the inner conductor connection part 221.

[0142] Further, a first positioning groove is provided on the outer peripheral side wall of the first plug 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 231.

[0143] It can be understood that the first plug 231 is used to penetrate through the inner conductor penetration hole 2211 so that the first elastic conductor 232 abuts against the hole wall of the inner conductor penetration hole 2211. Among them, since the first elastic conductor 232 has elasticity, it can abut against the hole wall of the inner conductor penetration hole 2211 under its own elastic force, reducing the risk of its detachment from the inner conductor connection part 221. In addition, when the first elastic conductor 232 abuts against the hole wall of the inner conductor penetration hole 2211, the electrical connection between the first elastic conductor 232 and the inner conductor connection part 221 can be realized, thereby achieving the purpose of electrically connecting the inner conductor 310 and the inner conductor connection part 221.

[0144] It can be understood that the inner conductor penetration hole 2211 has a penetration end and an exit end opposite to the penetration end. Specifically in this embodiment, the lower end of the inner conductor penetration hole 2211 is the penetration end, and the upper end is the exit end; when connecting the inner conductor 310 of the cable 300 with the inner conductor connection part 221, the cable 300, the first plug 231 and the first elastic conductor 232 are inserted into the inner conductor penetration hole 2211 from the penetration end of the inner conductor penetration hole 2211. After the cable 300, the first plug 231 and the first elastic conductor 232 are inserted in place, a part of the first plug 231 passes through the exit end of the inner conductor penetration hole 2211. The part of the first plug 231 passing through the exit end of the inner conductor penetration hole 2211 is defined as the clamping part 2311.

[0145] Combined Figure 23 with Figure 25 , the clamping ring 233 is sleeved on the clamping part 2311 and is used to abut against one end of the inner conductor connection part 221 close to the exit end of the inner conductor penetration hole 2211.

[0146] It can be understood that the outer diameter of the clamping ring 233 is larger than the hole wall of the inner conductor penetration hole 2211. After the clamping ring 233 is sleeved on the clamping part 2311, it can prevent the first plug 231 from coming out of the inner conductor penetration hole 2211, thereby realizing the reliable connection between the inner conductor 310 of the cable 300 and the inner conductor connection part 221.

[0147] In the connection structure of the cable 300 and the grounding assembly 200 of the present invention, the inner conductor 310 of the cable 300 and the inner conductor connecting portion 221 can be reliably connected by means of the inner conductor connecting structure 230. In addition, this method can avoid bolts to fasten the inner conductor 310 of the cable 300, avoid the operation of grinding the tip of the bolt, and the connection method is simple.

[0148] Combination Figure 25 and Figure 26 In some embodiments, a clamping entrance 23111 is provided at 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 whose one end is connected to the clamping entrance 23111 is provided on the outer peripheral side wall of the clamping portion 2311 .

[0149] 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 groove 23112 is opened on the outer peripheral side wall of the card-connecting portion 2311, and the arc-shaped card groove 23112 is coaxially arranged with the card-connecting portion 2311, wherein one end of the arc-shaped card groove 23112 is connected to the card-connecting entrance 23111.

[0150] Combination Figure 25 and Figure 26 The clamping ring 233 includes a ring body 2331 and a buckle 2332 arranged on the inner circumferential 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 one end of the inner conductor connecting part 221 close to the outlet end.

[0151] It can be understood that when assembling the clamping ring 233, the clamping ring 2332 can be aligned with the clamping entrance 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 entrance 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.

[0152] 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 to the inside 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 and is passed out. By installing a clamping ring 233 on the clamping ring 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 entry end of the inner conductor insertion hole 2211.

[0153] 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 buckle 2332 to limit the rotation angle of the buckle 2332. When the buckle 2332 abuts against the limiting wall 23113, it means that the buckle 2332 is installed in place.

[0154] like Figure 23 , Figure 24 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 covers the clamping ring 233. It is understandable that the insulating cover 234 can cover the clamping portion 2311, thereby achieving insulation and improving safety.

[0155] like Figure 27 As shown, further, a plug 2341 for being inserted into the card-connecting entrance 23111 is provided inside the insulating cover 234 .

[0156] Specifically, the insulating cover 234 is made of insulating material, such as insulating rubber or insulating plastic.

[0157] 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 buckle part (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 to cause the connection position to fail.

[0158] Combination Figure 23 and Figure 24, in some embodiments, the inner conductor connection structure 230 further includes a first insulating member 235. The first insulating member 235 is sleeved outside the first plug 231, and the first insulating member 235 seals the gap between the penetrating end of the inner conductor penetration hole 2211 and the first plug 231.

[0159] Specifically, the first insulating member 235 is made of an insulating material, such as insulating rubber or insulating plastic. At least a part of the first insulating member 235 is inserted into the gap between the penetrating end of the inner conductor penetration hole 2211 and the first plug 231. On the one hand, the sealing effect can be improved, thereby reducing the risk of oxidation of the conductor in the conductor penetration hole 2211. On the other hand, insulation can also be achieved to improve safety.

[0160] As Figure 23 shown, in some embodiments, the connection structure between the cable 300 and the grounding assembly 200 further includes an outer conductor connection structure 240. The outer conductor connection structure 240 is used to connect the outer conductor 320 of the cable 300 to the outer conductor connection portion 222.

[0161] Among them, the outer conductor connection structure 240 includes a second plug 241 and a second elastic conductor 242.

[0162] The second plug 241 is used to be sleeved outside the outer conductor 320 of the cable 300.

[0163] Specifically, the second plug 241 is a tubular structure and is used to be sleeved outside the outer conductor 320 of the cable 300. Among them, the second plug 241 can be in interference fit with the outer conductor 320.

[0164] It should be noted that the second plug 241 can be made of a conductive material such as copper or aluminum, and the second plug 241 and the outer conductor 320 of the cable 300 can conduct electricity.

[0165] Combined Figure 23 with Figure 28 , the second elastic conductor 242 is sleeved outside the second plug 241.

[0166] Specifically, the second elastic conductor 242 is fixedly sleeved outside the second plug 241. The second elastic conductor 242 and the second plug 241 can be in interference fit. In addition, the second elastic conductor 242 can be made of materials such as copper, copper alloy, aluminum or aluminum alloy, or other materials that are easier to conduct electricity, such as silver or gold, can be plated on the surface of the above materials to improve the conductivity between the outer conductor 320 and the outer conductor connection portion 222.

[0167] Further, a second positioning groove is provided on the outer peripheral side wall of the second plug-in 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-in head 241.

[0168] It should be noted that the outer conductor connection part 222 is used to clamp the second elastic conductor 242, thereby fixing the second elastic conductor 242.

[0169] Combined Figure 16 、 Figure 22 and Figure 23 Specifically, the outer conductor connection part 222 is a hoop. The outer conductor connection part 222 includes a first clamping part 2221 and a second clamping part 2222 rotatably connected to the first clamping part 2221. The first clamping part 2221 and the second clamping part 2222 jointly clamp the second elastic conductor 242.

[0170] Further, one end of the first clamping part 2221 is rotatably connected to one end of the second clamping part 2222. A screw 2223 is rotatably connected to the other end of the first clamping part 2221. A limiting groove 22221 is provided at the other end of the second clamping part 2222. The screw 2223 is inserted into the limiting groove 22221 and locked with the second clamping part 2222 through a nut 2224. It should be noted that the nut 2224 is a cap nut 2224. Specifically, the nut 2224 is in a cap shape, and its inner side wall is provided with threads. When the nut 2224 is connected to the screw 2223, the nut 2224 covers the end of the screw 2223.

[0171] Combined Figure 23 with Figure 28 In some embodiments, the outer conductor connection structure 240 further includes a second insulating member 243, and the second insulating member 243 is sleeved outside the second plug-in head 241.

[0172] Specifically, the second insulating member 243 is made of an insulating material, such as insulating rubber or insulating plastic. The second insulating member 243 seals around the end of the second plug-in head 241. On the one hand, it can improve the sealing effect, thereby reducing the risk of oxidation of the relevant conductors in the outer conductor connection part 222. On the other hand, it can also achieve insulation and improve safety.

Claims

1. A cable grounding box with high reliability, characterized in that, Including: A box body, the box body includes a side plate assembly, the side plate assembly includes a plurality of side plates, among the plurality of side plates, there are a first side plate and a second side plate spaced apart from and opposite to the first side plate; a first mortise joint structure is provided on the inner side wall of the first side plate, and a second mortise joint structure opposite to the first mortise joint structure is provided on the inner side wall of the second side plate; the first mortise joint structure includes a first limiting member and a first mortise joint block, and the first mortise joint block includes a first supporting portion connected to the first limiting member and arranged along the width direction of the first side plate with the first limiting member; the second mortise joint structure includes a second limiting member and a second mortise joint block, the second limiting member is arranged opposite to the first limiting member, the second mortise joint block includes a second supporting portion connected to the second limiting member and a blocking block connected to the second supporting portion, the second supporting portion is arranged opposite to the first supporting portion and is arranged along the width direction of the second side plate with the second limiting member, the blocking block is connected to one end of the second supporting portion far away from the second limiting member, and an insertion opening is provided on the blocking block, and the insertion opening penetrates through both sides of the blocking block along the width direction of the second side plate; A grounding assembly, the grounding assembly is arranged in the box body, the grounding assembly includes an insulating plate and a grounding mechanism arranged on the insulating plate, a first mortise joint opening is provided at the first side end of the insulating plate, a second mortise joint opening is provided at the second side end of the insulating plate, the first side end of the insulating plate faces the first mortise joint structure and enables the first supporting portion to penetrate through the first mortise joint opening, and the second side end of the insulating plate faces the second mortise joint structure and enables the second supporting portion to penetrate through the second mortise joint opening; Wherein, the second mortise joint structure further includes a pressing plate arranged between the blocking block and the insulating plate, and a mortise joint column penetrating through the insertion opening, the pressing plate and the second mortise joint opening; Wherein, the first side plate, the second side plate, the first mortise joint structure and the second mortise joint structure are all non-conductive components.

2. The highly reliable cable grounding box according to claim 1, wherein The first mortise joint block further includes an anti-detachment portion connected to the side of the first supporting portion far away from the first limiting member, and the anti-detachment portion is in limit cooperation with the first side end of the insulating plate.

3. The highly reliable cable grounding box according to claim 1, characterized in that, The pressing plate is provided with a jack between the insertion opening and the second mortise joint opening, the mortise joint column sequentially penetrates through the insertion opening, the jack and the second mortise joint opening, and the mortise joint column is in interference fit with the jack.

4. The highly reliable cable earthing box according to claim 1, characterized in that, The pressing plate is provided with a third mortise joint opening on the side close to the second supporting portion, and at least a part of the second supporting portion penetrates through the third mortise joint opening.

5. The highly reliable cable grounding box according to claim 1, characterized in that, At least one of the side plates is provided with a rain-proof structure, the rain-proof structure includes a plurality of rain-proof portions arranged along the gravity direction, the rain-proof portion includes a diversion plate and a protection plate, the top of the diversion plate is arranged close to the inner side of the side plate, and the diversion plate is inclined gradually from top to bottom towards the outer side of the side plate, and the top of the protection plate is connected to the bottom of the diversion plate; In every two adjacent rainproof parts: the bottom of the protective plate of the upper rainproof part and the top of the guide plate of the lower rainproof part are staggered, and a removable baffle is provided between the bottom of the protective plate of the upper rainproof part and the top of the guide plate of the lower rainproof part, and the baffle is configured to be removable so that a vent is formed between the bottom of the protective plate of the upper rainproof part and the top of the guide plate of the lower rainproof part.

6. The highly reliable cable grounding box according to claim 1, characterized in that, The box body also includes a storage shell, which is arranged at the upper end of the side panel assembly, and includes a bottom shell and an upper cover, wherein the bottom shell has a shell opening, and the upper cover is arranged on the shell opening and the edge of the upper cover is arranged around the edge of the shell opening; Among them, the upper surface of the upper cover has a guide structure and a drainage groove located on the lower side of the guide structure, the bottom wall of the drainage groove is provided with a drainage hole, the drainage hole is separated from the internal space of the bottom shell, and the bottom of the drainage hole is a non-blocking structure.

7. The highly reliable cable earthing box according to claim 1, characterized in that, The box body also includes a bottom plate assembly arranged at the bottom end of the side plate assembly, the bottom plate assembly is provided with a wire-passing through hole penetrating the upper and lower sides of the bottom plate assembly, and a wire-passing structure is arranged in the wire-passing through hole; Wherein, the wire passing structure comprises a plurality of cable passing coils, different cable passing coils have different inner diameters, and 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 arranged between each two adjacent cable passing coils, and between the cable passing coil with the largest inner diameter and the hole wall of the wire passing through hole; Among them, the connecting part located between two adjacent cable coils and at least one of the two cable coils connected thereto are detachably connected; the connecting part between the cable coil with the largest inner diameter and the hole wall of the wire through hole and the cable coil connected thereto and / or the hole wall of the wire through hole are detachably connected.

8. The highly reliable cable earthing box according to claim 1, wherein The grounding mechanism comprises an inner conductor connecting portion and an outer conductor connecting portion, wherein the inner conductor connecting portion is provided with an inner conductor insertion hole. The high-reliability cable grounding box further comprises a connection structure between the cable and the grounding assembly, wherein the connection structure between the cable and the grounding assembly comprises an inner conductor connection structure, wherein 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 inner conductor of the cable; the first elastic conductor is sleeved on the outside of the first plug head, the first plug head is used to be inserted into the inner conductor insertion hole so that the first elastic conductor abuts 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, 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; Among them, an insertion port is provided at the edge of one end of the clamping part away from the outlet, and an arc-shaped clamping groove with one end connected to the insertion port is provided on the outer peripheral side wall of the clamping part; the clamping ring includes a ring body, and a buckle arranged 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 part and abuts against one end of the inner conductor connecting part close to the outlet.

9. The highly reliable cable grounding box according to claim 8, wherein The connection structure between the cable and the grounding assembly further includes an outer conductor connection structure, and the outer conductor connection structure includes a second plug head and a second elastic conductor; The second plug head is used to be sleeved outside the outer conductor of the cable; the second elastic conductor is sleeved outside the second plug head, and the outer conductor connecting portion is used to clamp the second elastic conductor.

10. A method for installing a grounding component, which is applied to the highly reliable cable grounding box according to any one of claims 1 to 9, characterized in that, include: The first side end of the insulating plate of the grounding assembly is obliquely inserted into the first mortise and tenon structure until the first mortise interface is inserted into the first supporting portion, wherein when the first side end of the insulating plate is obliquely inserted into the first mortise and tenon structure, the distance between the second side end of the insulating plate and the second stopper 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 stopper along the width direction of the first side plate; During the process of the first tenon joint being inserted into the first supporting part, the second side end of the insulating plate is deflected toward the second limiting member until the second tenon joint is inserted into the second supporting part; Inserting the pressing plate between the stopper and the insulating plate; The mortise and tenon joint column is penetrated through the insertion opening of the stopper, the pressing plate and the second mortise and tenon joint.

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