A suspended low voltage distribution box

By designing the split chamber, through-wire hole and maintenance port in the suspended low-voltage splitter box, and using adjusting parts to increase the air pressure in the splitter cavity, the problem of poor waterproof performance of the splitter box is solved, and higher waterproof performance and longer service life are achieved.

CN119543014BActive Publication Date: 2025-04-11ZHEJIANG QIANFANGBAIJI ELECTRIC POWER EQUIPMENT CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202510102976.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2025-04-11
Estimated Expiration
2045-01-22

AI Technical Summary

Technical Problem

The existing splitter box has poor waterproof performance, which can easily lead to short circuits in cables, affect the stability of power transmission and communication signals, and may cause more serious electrical failures.

Method used

A suspended low-pressure line splitter box is designed, which adopts a line splitter cavity, a line through hole and an inspection port in the box. The distance between the wiring boards is reduced through the adjustment parts to ensure that all the wiring boards are in the line splitter cavity. When the door is blocked, the air pressure in the line splitter cavity is increased to form a positive pressure environment to prevent water vapor from entering.

Benefits of technology

It improves the waterproof performance of the splitter box, reduces the probability of rainwater entering the splitter cavity, extends the service life of the splitter box and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119543014B_ABST
    Figure CN119543014B_ABST
Patent Text Reader

Abstract

The present invention relates to the technical field of wiring distribution boxes, and in particular to a suspended low-voltage wiring distribution box, which includes a box body, a wiring board and an adjusting member. When wiring is distributed, the cables are passed through a wire through hole into a wiring distribution cavity, and a worker installs the cables on the wiring board through an inspection port, and then the distributed cables are passed through the wire through hole again to go out of the wiring distribution cavity, and then a blocking door is used to block the inspection port. In the process of the blocking door blocking the inspection port, the adjusting member reduces the distance between two adjacent wiring boards and reduces the gap between the wiring boards, thereby ensuring that all of the multiple wiring boards are inside the wiring distribution cavity. When the sealing plate blocks the inspection port, the adjusting member adjusts the air pressure in the wiring distribution cavity to be in a positive pressure state. If the sealing performance of the wiring distribution box is not good, the air pressure in the wiring distribution cavity slowly leaks, thereby preventing rainwater or water vapor from the external environment from entering the wiring distribution cavity, reducing the probability of rainwater entering the wiring distribution cavity, and thus improving the waterproof performance of the wiring distribution box.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of junction boxes, and in particular to a suspended low-voltage junction box. Background Art

[0002] In the construction of power and communication infrastructure in modern cities, cables are distributed in all directions. Junction boxes are usually used to manage and distribute cables in an orderly manner. Among them, suspended junction boxes can be installed in the air to reduce the space occupied on the ground. However, when the junction box is exposed to the outdoors for a long time, if the waterproof performance of the junction box is poor, once rainwater penetrates into the box, it may cause a short circuit in the cable, which will not only affect the normal transmission of electricity or the stability of communication signals, but also may cause more serious electrical failures, causing large-scale power outages or communication interruptions, bringing great inconvenience to residents' lives and urban operations. Moreover, short-circuit failures may also cause irreversible damage to the electronic components inside the junction box, increasing maintenance costs and replacement frequency. In addition, when the junction box is in a humid environment for a long time, the metal part of the junction box is prone to rust and corrosion, which will not only reduce the structural strength of the junction box and shorten its service life, but may also further affect its waterproof sealing performance, forming a vicious circle. Summary of the invention

[0003] The invention provides a suspended low-voltage junction box to solve the problem of poor waterproof performance of the existing junction box.

[0004] A suspended low-voltage distribution box of the present invention adopts the following technical solution:

[0005] A suspended low-voltage distribution box comprises a box body, a wiring board and an adjusting member.

[0006] The box body has a wiring cavity inside, and the side wall of the box body is provided with a wiring hole connecting the external environment and the wiring cavity, and the cable can enter the wiring cavity through the wiring hole; the side wall of the box body is provided with an inspection port connecting the external environment and the wiring cavity, and the box body is rotatably connected with a blocking door for blocking the inspection port; a plurality of wiring boards are provided, and the plurality of wiring boards are arranged in parallel and at intervals in the wiring cavity; the adjusting member is used to adjust the distance between two adjacent wiring boards; the adjusting member can also increase the air pressure in the wiring cavity when the blocking door blocks the inspection port.

[0007] Further, the adjustment member includes multiple groups of scissor parts, each group of the scissor parts includes a hinge shaft and two hinge rods, the two hinge rods are hinged through one hinge shaft, the inner wall of the box body is provided with a slide groove, the slide groove extends along the first direction, and one end of the hinge shaft is slidably arranged along the slide groove; multiple groups of the scissor parts are arranged along the first direction, and the hinge rods between two adjacent groups of the scissor parts are rotatably connected; the two ends of the width of the wiring board are respectively connected to the ends of the two hinge rods, the width direction of the wiring board is perpendicular to the first direction, and the wiring board is telescopically arranged along the width direction.

[0008] Furthermore, the wiring board includes a first plate body and a second plate body, the first plate body and the second plate body are always in a coplanar state, the first plate body and the second plate body are separated and arranged along the width direction, the first plate body is provided with a first plug-in slot, and the second plate body is provided with a connecting block, and the connecting block is slidably arranged in the first plug-in slot.

[0009] Furthermore, the adjustment member also includes an adjustment rope and two sliding rods, a guide rail is provided on the inner wall of the box body, the guide rail extends along a second direction, the sliding rod is slidably arranged along the guide rail, and the second direction is arranged perpendicular to the first direction; each sliding rod is hinged to an end of the hinged rod; two blocking doors are provided, and the two blocking doors jointly block the inspection port, one end of each adjustment rope is fixedly connected to one sliding rod, and the other end of each adjustment rope is fixedly connected to one blocking door, and when the blocking door blocks the inspection port, the adjustment rope pulls the sliding rod to move along the guide rail.

[0010] Furthermore, a return spring is connected between the two sliding rods, and the return spring is arranged along the extension direction of the guide rail. When the blocking door completely releases the blocking of the inspection port, the distance between the two sliding rods is in the shortest state, and the return spring is in the original length state.

[0011] Furthermore, the adjustment member also includes two elastic plates, and the side wall of the box body is provided with two adjustment ports connecting the branching cavity and the external environment, the adjustment ports are coaxially arranged, and each elastic plate blocks one adjustment port. The elastic plate has an initial curvature, and the elastic plate has a first state in which the arc center is inside the branching cavity and a second state in which the arc center is outside the branching cavity. In the process of the blocking door blocking the inspection port, the elastic plate can be transformed from the first state to the second state.

[0012] Furthermore, the adjusting member also includes two traction rods, one end of the traction rod is rotatably connected to the middle part of the elastic plate, and the other end of the traction rod is rotatably connected to the hinge shaft. The traction rod is a telescopic rod. When the elastic plate is in a first state, the traction rod is in a longest state. When the hinge shaft slides along the slide groove, the traction rod can pull the elastic plate to deform. When the elastic plate is in a second state, the traction rod is in a shortest state.

[0013] Furthermore, a positioning rod is provided on the outer side wall of the box body, a roller is rotatably provided on the positioning rod, and the middle part of the adjustment rope is wound around the roller.

[0014] Furthermore, one of the blocking doors is provided with a lock groove, and the other blocking door is provided with a lock tongue, and when the two blocking doors block the inspection opening, the lock tongue can be inserted into the lock groove.

[0015] Furthermore, the wire through hole is arranged on the lower end surface of the box body, a sealing plug is arranged at the wire through hole, a wire threading channel is arranged in the middle of the sealing plug, and the cable can squeeze the wire threading channel.

[0016] The beneficial effects of the present invention are as follows: a suspended low-voltage distribution box of the present invention comprises a box body, a wiring board and an adjusting member. When the cables are distributed, the cables are passed through the wire-through holes into the distribution cavity. The staff installs the cables on the wiring board through the blocking inspection port. The distributed cables are then passed through the wire-through holes again out of the distribution cavity. The blocking door is then used to block the inspection port. In the process of blocking the inspection port with the blocking door, the adjusting member reduces the distance between two adjacent wiring boards and reduces the gap between the wiring boards, thereby ensuring that all the multiple wiring boards are inside the distribution cavity. When the sealing plate blocks the inspection port, the adjusting member adjusts the air pressure in the distribution cavity to a positive pressure state. If the sealing of the distribution box is not good, the air pressure in the distribution cavity leaks slowly, thereby preventing rainwater or water vapor from the external environment from entering the distribution cavity, reducing the probability of rainwater entering the distribution cavity, and thereby improving the waterproof performance of the distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic structural diagram of a suspended low-voltage distribution box provided in an embodiment of the present invention;

[0019] Figure 2A front view of a suspended low-voltage distribution box provided by an embodiment of the present invention;

[0020] Figure 3 A front view of a box body in a suspended low-voltage distribution box provided by an embodiment of the present invention;

[0021] Figure 4 for Figure 2 Sectional view in the AA direction;

[0022] Figure 5 A state diagram of a blocking door in a suspended low-voltage distribution box provided by an embodiment of the present invention just blocking the inspection port;

[0023] Figure 6 A state diagram of an elastic plate in a suspended low-voltage distribution box when it is deformed into a second state provided by an embodiment of the present invention.

[0024] In the figure: 110, box body; 111, branch line cavity; 120, wire hole; 140, blocking door; 150, wiring board; 151, first board body; 152, second board body; 160, scissors-type member; 161, hinge shaft; 162, hinge rod; 170, slide groove; 180, guide rail; 210, adjustment rope; 220, sliding rod; 230, reset spring; 240, elastic plate; 250, traction rod; 260, positioning rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] like Figures 1 to 6 As shown, an embodiment of the present invention provides a suspended low-voltage distribution box, which includes a box body 110, a wiring board 150 and an adjustment member.

[0029] The box 110 is hollow inside, and the hollow chamber inside the box 110 is the wire splitting chamber 111. The box 110 has a connection point, and the box 110 can be hung on a wall or a bracket through the connection point. The connection point of the box 110 is reinforced to prevent the box 110 from breaking at the connection point. The side wall of the box 110 is provided with a wire hole 120 connecting the external environment and the wire splitting chamber 111. There are multiple wire holes 120. Cables in the external environment can pass through the wire holes 120 to pass into the wire splitting chamber 111, and cables inside the wire splitting chamber 111 can pass through the wire holes 120. The side wall of the box 110 is provided with an inspection port connecting the external environment and the branching cavity 111. When the cable enters the branching cavity 111 through the cable hole 120, the staff can operate the cable through the inspection port. A blocking door 140 for sealing the inspection port is rotatably connected to the box 110. After the cable is connected in the branching cavity 111, the staff uses the blocking door 140 to seal the inspection port to ensure that the branching cavity 111 is in a closed environment.

[0030] There are multiple wiring boards 150, which are arranged vertically. The multiple wiring boards 150 are arranged in parallel and spaced apart in the wiring cavity 111. The length direction of the wiring board 150 is the up and down direction, and the width direction of the wiring board 150 is the left and right direction. The multiple wiring boards 150 are arranged in parallel and spaced apart in the front and back directions. Electrical components are arranged on the wiring boards 150, and cables can connect the electrical components on the wiring boards 150. When the inspection port is in a fully open state, the distance between two adjacent wiring boards 150 is in a maximum state, which is convenient for the staff to install the cables on the wiring boards 150.

[0031] The adjusting member is used to adjust the distance between two adjacent wiring boards 150. Specifically, when the inspection port is gradually blocked by the blocking door 140, the adjusting member gradually reduces the distance between two adjacent wiring boards 150, ensuring that all the wiring boards 150 are in the wiring cavity 111, thereby ensuring that the blocking door 140 can smoothly block the inspection port. The adjusting member can also increase the air pressure in the wiring cavity 111 when the blocking door 140 blocks the inspection port. After the air pressure in the wiring cavity 111 increases, if the sealing of the wiring box is not good, the air pressure in the wiring cavity 111 slowly leaks, thereby preventing rainwater or water vapor from the external environment from entering the wiring cavity 111, reducing the probability of rainwater entering the wiring cavity 111, and thereby improving the waterproof performance of the wiring box.

[0032] A suspended low-voltage junction box of the present invention, when dividing cables, passes the cables into the junction cavity 111 through the wire hole 120, and the staff installs the cables on the wiring board 150 through the inspection port, and then passes the divided cables out of the junction cavity 111 through the wire hole 120 again, and then uses the blocking door 140 to block the inspection port. In the process of blocking the inspection port with the blocking door 140, the adjusting member reduces the distance between two adjacent wiring boards 150 and reduces the gap between the wiring boards 150, thereby ensuring that multiple wiring boards 150 are all inside the junction cavity 111. When the blocking plate blocks the inspection port, the adjusting member adjusts the air pressure in the junction cavity 111 to be in a positive pressure state. If the sealing performance of the junction box is not good, the air pressure in the junction cavity 111 leaks slowly, thereby preventing rainwater or water vapor from the external environment from entering the junction cavity 111, reducing the probability of rainwater entering the junction cavity 111, and thus improving the waterproof performance of the junction box.

[0033] In one embodiment, the adjustment member includes a plurality of scissor parts 160, each scissor part 160 includes a hinge shaft 161 and two hinge rods 162, and the two hinge rods 162 are hinged by a hinge shaft 161. Specifically, the hinge shaft 161 connects the middle parts of the two hinge rods 162, so that the two hinge rods 162 are in a staggered state, and the angle between the two hinge rods 162 can be changed. A slide groove 170 is provided on the inner side wall of the box body 110, and the slide groove 170 extends along a first direction. In this embodiment, the first direction is the front-back direction. The slide groove 170 is provided on the lower side wall of the box body 110, and the hinge shaft 161 is slidably provided along the slide. A plurality of groups of scissor parts 160 are arranged along a first direction, and the hinge shafts 161 in two adjacent groups of scissor parts 160 are hinged to each other. When the two hinge rods 162 in one group of scissor parts 160 rotate relative to each other, the hinge rods 162 in the remaining groups of scissor parts 160 move synchronously, thereby realizing the linkage between the plurality of groups of scissor parts 160. The two ends of the width of the wiring board 150 are respectively connected to the ends of the two hinged rods 162, and the ends of the wiring board 150 are hinged to the ends of the hinged rods 162. The wiring board 150 is always in a vertical state, and the width direction of the wiring board 150 is perpendicular to the first direction. The wiring board 150 is telescopically set along the width direction. In the initial state, the blocking door 140 is in a state of not blocking the inspection port, the spacing between the two adjacent wiring boards 150 is in a maximum state, the width of the wiring board 150 is in a minimum state, and the distance between the hinge shafts 161 in the two adjacent scissors fork members 160 is in a maximum state. In the process of the blocking door 140 blocking the inspection port, the hinged rods 162 in multiple groups of scissors fork members 160 move synchronously, and the distance between the hinge shafts 161 in the two adjacent scissors fork members 160 gradually decreases. Then, the angle between the two hinged rods 162 in each scissors fork member 160 changes at the same time, so that the width of the wiring board 150 gradually increases, and the distance between the two adjacent wiring boards 150 gradually decreases.

[0034] In one embodiment, the wiring board 150 includes a first plate body 151 and a second plate body 152, the first plate body 151 and the second plate body 152 are always in a coplanar state, the first plate body 151 and the second plate body 152 are separated along the width direction, a first plug-in slot is provided on the first plate body 151, and a connecting block is provided on the second plate body 152, the connecting block is slidably provided in the first plug-in slot, and the connecting block cannot be separated from the first plug-in slot. In the initial state, the first plate body 151 and the second plate body 152 are in abutment state, and the connecting block is completely inserted into the first plug-in slot. In the process of blocking the inspection port with the blocking door 140, the connecting block slides in the first plug-in slot, and the first plate body 151 and the second plate body 152 gradually move away from each other, thereby preventing the wiring board 150 from hindering the two hinged rods 162 in the scissors fork 160 from rotating relative to each other.

[0035] In one embodiment, the adjustment member further includes an adjustment rope 210 and two sliding rods 220. The inner side wall of the box 110 is provided with a guide rail 180, and the guide rail 180 extends along the second direction. In this embodiment, the second direction is perpendicular to the first direction, and the second direction is the width direction of the wiring board 150. The two sliding rods 220 are both slidably arranged on the guide rail 180, and the two sliding rods 220 are arranged at intervals on the guide rail 180. When multiple groups of scissor members 160 are arranged along the first direction, there is always a group of scissor members 160 in a state close to the guide rail 180. In a group of scissor members 160 close to the guide rail 180, each sliding rod 220 is hinged to the end of a hinge rod 162. The sliding rod 220 slides through the side wall of the box 110, so that one end of the sliding rod 220 is outside the box 110. There are two blocking doors 140, which block the inspection port together. Each blocking door 140 is rotatably connected to the box body 110. In the initial state, the two blocking doors 140 are in a state of completely unblocking the inspection port. One end of each adjustment rope 210 is fixedly connected to the end of a sliding rod 220 outside the box body 110, and the other end of each adjustment rope 210 is fixedly connected to a blocking door 140. When the blocking door 140 blocks the inspection port, the adjustment rope 210 pulls the sliding rod 220 to move along the guide rail 180, so that the two sliding rods 220 move away from each other. When the sliding rod 220 moves along the guide rail 180, the hinged rods 162 connected to the two sliding rods 220 rotate relative to each other. When the two hinged rods 162 rotate relative to each other, the hinge shaft 161 gradually slides along the slide groove 170, thereby adjusting the spacing between the wiring boards 150.

[0036] In one embodiment, a return spring 230 is connected between the two sliding rods 220. The return spring 230 is arranged along the extension direction of the guide rail 180. The end of the return spring 230 is fixedly connected to the sliding rod 220. In the initial state, the blocking door 140 is in a state of completely unblocking the inspection port, the return spring 230 is in the original length state, and the distance between the two sliding rods 220 is in the closest state. In the process of the blocking door 140 gradually blocking the inspection port, the two sliding rods 220 gradually move away, and the return spring 230 is gradually stretched. When the blocking door 140 completely blocks the inspection port, the length of the return spring 230 is in the longest state. When the staff needs to inspect the electrical components inside the branching cavity 111, the staff controls the blocking door 140 to gradually unblock the inspection port. At this time, the return spring 230 begins to pull the two sliding rods 220 to reset, so that the distance between the two adjacent wiring boards 150 gradually increases.

[0037] In one embodiment, the adjustment member further includes two elastic plates 240, and the side wall of the box body 110 is provided with two adjustment ports connecting the line dividing cavity 111 and the external environment, the two adjustment ports are coaxially arranged, and the two adjustment ports are arranged on two opposite side walls of the box body 110, each elastic plate 240 blocks one adjustment port, and the elastic plate 240 has an initial curvature, and the elastic plate 240 has a first state in which the arc center is inside the line dividing cavity 111 and a second state in which the arc center is outside the line dividing cavity 111. In the initial state, the elastic plate 240 is in the first state When the blocking door 140 gradually blocks the inspection port, the elastic plate 240 gradually changes from the first state to the second state. Furthermore, the elastic plate 240 has a critical state, and the critical state of the elastic plate 240 is between the first state and the second state. When the blocking door 140 completely blocks the inspection port, the elastic plate 240 passes the critical state, and the elastic plate 240 actively deforms until the elastic plate 240 changes to the second state. The deformation of the elastic plate 240 after the blocking door 140 completely blocks the inspection port increases the air pressure in the branch line cavity 111.

[0038] In one of the embodiments, the adjustment member further includes two traction rods 250, one end of the traction rods 250 is rotatably connected to the middle of the elastic plate 240, and the other end of the traction rods 250 is rotatably connected to the hinge shaft 161. In the initial state, the length direction of the traction rods 250 extends along the first direction. When the blocking plate gradually blocks the inspection port, the traction rods 250 gradually pull the elastic plate 240 to deform. Further, the traction rods 250 are telescopic rods, and the traction rods 250 include a first rod and a second rod. A second plug-in slot is provided inside the first rod, and one end of the second rod is slidably provided in the second plug-in slot, so that the first rod and the second rod are coaxially slidably connected. A connecting spring is provided in the second plug-in slot, one end of the connecting spring is fixedly connected to the end of the second plug-in slot, and the other end of the connecting spring is fixedly connected to the end of the second rod. In the initial state, the connecting spring is in the original length state, and the traction rod 250 composed of the first rod and the second rod is in the longest state. In the process of the blocking door 140 gradually blocking the inspection port, the traction rod 250 gradually pulls the elastic plate 240 to deform. When the blocking door 140 completely blocks the inspection port, the traction rod 250 pulls the elastic plate 240 to cross the critical state. At this time, the elastic plate 240 actively deforms. When the elastic plate 240 actively deforms, the traction rod 250 is squeezed, so that the traction rod 250 is gradually shortened. When the elastic plate 240 is deformed to the second state, the traction rod 250 is in the shortest state, and the connecting spring is in a compressed state. On the contrary, when the staff needs to inspect the electrical components inside the branch chamber 111, the staff controls the blocking door 140 to gradually unblock the inspection port. At this time, the traction rod 250 pushes the elastic plate 240 to deform. When the blocking door 140 completely unblocks the inspection port, the traction rod 250 pushes the elastic plate 240 to cross the critical state again. At this time, the elastic plate 240 actively deforms. When the elastic plate 240 actively deforms, the connecting spring actively resets, and the traction rod 250 gradually stretches. When the elastic plate 240 is deformed to the first state, the traction rod 250 returns to its initial state.

[0039] In one embodiment, a positioning rod 260 is provided on the outer wall of the box body 110, and two positioning rods 260 are provided. The positioning rods 260 are fixedly connected to the box body 110, and the positioning rods 260 are located on the outside of the branching cavity 111. In the initial state, each positioning rod 260 is located on the outside of an elastic plate 240. A roller is rotatably provided on each positioning rod 260, and the middle part of the adjusting rope 210 is wrapped around the roller. By providing the positioning rods 260 and the rollers, the adjusting rope 210 is prevented from contacting the elastic plate 240.

[0040] In one of the embodiments, a lock groove is provided on one of the blocking doors 140, and a lock tongue is provided on the other blocking door 140. When the two blocking doors 140 block the inspection port, the lock tongue can be inserted into the lock groove, thereby limiting the two blocking doors 140 to a coplanar state, ensuring that the blocking doors 140 stably block the inspection port.

[0041] In one of the embodiments, a sealing strip is provided on the blocking door 140. When the two blocking doors 140 are in a coplanar state, the sealing strip on the blocking door 140 tightly abuts against the box body 110, thereby ensuring that the blocking door 140 can tightly seal the inspection port.

[0042] In one of the embodiments, the wire hole 120 is arranged on the lower end surface of the box body 110, and a sealing plug is provided at the wire hole 120. A wire threading channel is provided in the middle of the sealing plug. The cable can squeeze the wire threading channel, and the cable is tightly abutted against the side wall of the wire threading channel. When the cable passes through the wire threading channel, the sealing plug is in a deformed state. By providing the sealing plug, it is ensured that there is no gap between the cable and the wire hole 120, thereby ensuring that the wiring cavity 111 is in a closed environment.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A suspended low-voltage distribution box, characterized in that: include: A box body, wherein the box body has a wiring cavity inside, and the side wall of the box body is provided with a wiring hole connecting the external environment and the wiring cavity, and the cable can enter the wiring cavity through the wiring hole; The side wall of the box body is provided with an inspection port connecting the external environment and the branching cavity, and a blocking door for blocking the inspection port is rotatably connected to the box body; A wiring board, wherein a plurality of the wiring boards are provided, and the plurality of wiring boards are arranged in parallel and spaced apart in the wiring cavity; An adjusting member, the adjusting member is used to adjust the distance between two adjacent wiring boards; the adjusting member can also increase the air pressure in the branching cavity when the blocking door blocks the inspection port; The adjusting member comprises a plurality of groups of scissor parts, each group of the scissor parts comprises a hinge shaft and two hinge rods, the two hinge rods are hinged by one hinge shaft, a slide groove is arranged on the inner side wall of the box body, the slide groove extends along the first direction, and one end of the hinge shaft is slidably arranged along the slide groove; the plurality of groups of scissor parts are arranged along the first direction, and the hinge rods between two adjacent groups of scissor parts are rotatably connected; the two ends of the width of the wiring board are respectively connected to the ends of the two hinge rods, the width direction of the wiring board is perpendicular to the first direction, and the wiring board is telescopically arranged along the width direction; The adjusting member further comprises two elastic plates, the side wall of the box body is provided with two adjusting ports connecting the line dividing cavity and the external environment, the adjusting ports are coaxially arranged, each of the elastic plates blocks one of the adjusting ports, the elastic plates have an initial curvature, the elastic plates have a first state where the arc center is inside the line dividing cavity and a second state where the arc center is outside the line dividing cavity, and in the process of the blocking door blocking the inspection port, the elastic plates can be transformed from the first state to the second state; The adjusting member also includes two traction rods, one end of which is rotatably connected to the middle part of the elastic plate, and the other end of which is rotatably connected to the hinge shaft. The traction rod is a telescopic rod. When the elastic plate is in a first state, the traction rod is in a longest state. When the hinge shaft slides along the slide groove, the traction rod can pull the elastic plate to deform. When the elastic plate is in a second state, the traction rod is in a shortest state.

2. A suspended low-voltage distribution box according to claim 1, characterized in that: The wiring board includes a first plate body and a second plate body, the first plate body and the second plate body are always in a coplanar state, the first plate body and the second plate body are separated and arranged along the width direction, the first plate body is provided with a first plug-in slot, the second plate body is provided with a connecting block, and the connecting block is slidably arranged in the first plug-in slot.

3. A suspended low-voltage distribution box according to claim 1, characterized in that: The adjusting member also includes an adjusting rope and two sliding rods. A guide rail is provided on the inner wall of the box body. The guide rail extends along a second direction. The sliding rod is slidably arranged along the guide rail. The second direction is arranged perpendicular to the first direction. Each sliding rod is hinged to an end of the hinged rod. Two blocking doors are provided, and the two blocking doors jointly block the inspection port. One end of each adjusting rope is fixedly connected to one sliding rod, and the other end of each adjusting rope is fixedly connected to one blocking door. When the blocking door blocks the inspection port, the adjusting rope pulls the sliding rod to move along the guide rail.

4. A suspended low-voltage distribution box according to claim 3, characterized in that: A return spring is connected between the two sliding rods and is arranged along the extension direction of the guide rail. When the blocking door completely releases the blocking of the inspection port, the distance between the two sliding rods is in the shortest state and the return spring is in the original length state.

5. A suspended low-voltage distribution box according to claim 3, characterized in that: The outer side wall of the box body is provided with a positioning rod, a roller is rotatably provided on the positioning rod, and the middle part of the adjusting rope is wound around the roller.

6. A suspended low-voltage distribution box according to claim 1, characterized in that: A lock groove is provided on one of the blocking doors, and a lock tongue is provided on the other blocking door. When the two blocking doors block the inspection opening, the lock tongue can be inserted into the lock groove.

7. The hanging low-voltage distribution box according to claim 1 is characterized in that: The wire through hole is arranged on the lower end surface of the box body, a sealing plug is arranged at the wire through hole, a wire threading channel is arranged in the middle of the sealing plug, and the cable can squeeze the wire threading channel.

Citation Information

Patent Citations

  • Cable adapter box

    CN109193518A

  • Vertical cable grounding box

    CN119108969A