A wiring device for an electric meter box and an electric meter box

Abstract

This invention provides a wiring device and meter box for an electric meter box, including a box module and a terminal block module. The box module contains several terminal block modules, each including a terminal housing assembly, a knob assembly, and a terminal head assembly. The knob assembly is rotatably mounted on the terminal housing assembly and is used to switch the locking state of the terminal block module. The terminal head assembly is movably mounted in the terminal housing assembly and is linked to the knob assembly. The terminal head assembly is used to clamp and press the wires to be connected. By providing several terminal block modules within the meter box and a knob assembly within each terminal block module for controlling the extension, retraction, clamping, and locking of the terminal head assembly, this invention can automatically tighten and press multiple sets of wire heads, making the wire heads easy to install and remove while also providing mechanical protection to the connection points to prevent accidental short circuits.

Description

Technical Field

[0001] This invention relates to the field of distribution box technology, and in particular to a meter box wiring device and a meter box. Background Technology

[0002] The meter box wiring device includes a specific wiring structure that can improve wiring efficiency, reliability, and ease of maintenance.

[0003] Chinese patent CN118659202A discloses a wiring device and meter box for an electric meter box, including a male connector mechanism and a female connector mechanism. The male connector mechanism includes a male connector with a snap-fit ​​groove on its outer wall. The female connector mechanism is located inside the meter box and includes a female connector, a locking component, and a toggle component. The locking component includes an elastic component and a snap-fit ​​element. During wiring, two cables are connected to the connecting ends of the male and female connectors respectively. Then, the male connector is moved closer to the female connector until its conductive end contacts the conductive end of the female connector, at which point the snap-fit ​​element is engaged in the snap-fit ​​groove. During disconnection, the toggle component moves the elastic component away from the connecting hole, while simultaneously moving the male connector away from the female connector, causing the snap-fit ​​element to disengage from the snap-fit ​​groove, and the conductive end of the male connector disengages from the conductive end of the female connector. This allows for quick completion of meter box wiring work, reducing the time spent working at heights.

[0004] In actual use, the above-mentioned meter box structure only has the function of quick connection when dealing with the terminals of the wires that are already connected. When maintaining and replacing the wires, it is still necessary to manually connect the wires and terminals, which is not only inefficient, but also makes it difficult to disassemble and install the terminals. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a wiring device for an electric meter box and an electric meter box to solve the problems mentioned in the background.

[0006] To achieve the above technical solution, the present invention provides the following technical solution:

[0007] A wiring device for an electric meter box and an electric meter box, comprising a box module and a terminal block module, wherein a plurality of terminal blocks are arranged in an array in the box module, and each terminal block module includes a terminal housing assembly, a knob assembly, and a terminal head assembly. The knob assembly is rotatably mounted on the terminal housing assembly and is used to switch the locked state of the terminal block module. The terminal head assembly is movably mounted in the terminal housing assembly and is linked to the knob assembly. The terminal head assembly is used to clamp and press the wire to be connected.

[0008] As a further embodiment of the present invention, the enclosure module includes an enclosure assembly, the enclosure assembly includes an electric meter box and a bracket, a plurality of brackets are fixedly installed in the electric meter box, and a plurality of the aforementioned terminal block modules are linearly arrayed on the brackets.

[0009] As a further embodiment of the present invention, the terminal housing assembly includes a terminal bottom housing, a slot, a terminal top housing, a circular groove, and an annular groove. The terminal bottom housing has a slot at one end, which is movably fastened to a bracket. The terminal bottom housing also has a terminal top housing at the other end. A volumetric cavity for assembling components is provided between the terminal bottom housing and the terminal top housing. The terminal top housing also has a circular groove in the middle. An annular groove is circumferentially arranged on the inner wall side of the circular groove. A pin hole is provided at the end of the annular groove.

[0010] As a further embodiment of the present invention, the terminal housing assembly further includes a top groove and a side groove. A plurality of the top grooves are disposed on one side surface of the terminal top housing, and the side grooves are arranged close to the top grooves and disposed on the other side surface of the terminal top housing. The top grooves and side grooves are used to limit the assembly of the terminal head assembly.

[0011] As a further embodiment of the present invention, the knob assembly includes a knob base, a knob shell, a locking rod, and an elastic element. The knob base is rotatably arranged in a circular groove with a fixed axis, and the knob shell is coaxially fixedly mounted on the knob base. Locking rods are slidably mounted on both sides of the knob shell, and an elastic element is sleeved on the outer diameter end of the locking rod to make the locking rod and the knob shell elastically abut against each other. One end of the locking rod is slidably mounted in an annular groove and matched with a pin hole on the annular groove.

[0012] As a further embodiment of the present invention, the knob assembly further includes an inclined pressure plate, a trigger rod, a trigger button, and a trigger pressure plate. One end of the inclined pressure plate is fixedly connected to the locking rod, and the other end of the inclined pressure plate is slidably assembled in the knob housing. The inclined pressure plate is provided with opposing sliding pin first surfaces. The trigger rod is slidably assembled in the knob housing and elastically connected to the knob housing. The trigger button is rotatably mounted on the top of the trigger rod. A trigger pressure plate is also coaxially fixedly mounted on the trigger rod. Opposing sliding pin second surfaces are provided on the trigger pressure plate, and the sliding pin second surfaces and sliding pin first surfaces are in movable contact.

[0013] As a further embodiment of the present invention, the knob assembly further includes a bottom shaft rod, a drive plate, a drive pin, and a fan plate. The bottom shaft rod and the knob seat are fixedly connected. The drive plate and the fan plate are coaxially fixed on the bottom shaft rod. The drive pin is fixedly provided on the drive plate. One end of the fan plate is provided with a first surface for sliding contact.

[0014] As a further embodiment of the present invention, the terminal head assembly includes a terminal head housing, an insertion groove, a connecting groove, a spring, a guide post, and a limiting plate. The terminal head housing is slidably assembled in the top groove, and the insertion groove and the connecting groove are provided in the middle of the terminal head housing. The insertion groove and the connecting groove are connected to each other. Springs are also provided on both sides of the insertion groove. The guide post is fixedly assembled on the terminal bottom housing. One end of the limiting plate is fixedly connected to the terminal head housing, and the other end of the limiting plate is slidably assembled on the guide post and elastically connected to the terminal bottom housing. The top of the terminal head housing is provided with opposing pressing first surfaces.

[0015] As a further embodiment of the present invention, the terminal assembly further includes a sealing plate and a sealing post. The sealing plate is slidably assembled on one side of the top groove, and one end of the sealing plate is provided with a first pressing surface that matches the first pressing surface. A sealing post is also provided in the middle of the sealing plate, and the other end of the sealing plate is provided with a corresponding sliding second surface.

[0016] As a further embodiment of the present invention, the terminal block module further includes a transmission assembly, which includes a conductive terminal, a collar, a side sliding groove, a roller, a helical groove, a transmission seat, and a linkage arm. The conductive terminal is slidably inserted into the connection groove, and a collar is fixedly provided at the bottom of the conductive terminal. One end of the collar is equipped with a side sliding groove. The roller is rotatably disposed at the bottom of the conductive terminal. The helical groove is fixedly arranged on the bottom shell of the terminal and movably abuts against the roller. The transmission seat is slidably assembled in the bottom shell of the terminal, and one end of the transmission seat is slidably sleeved in the side sliding groove. The other end of the transmission seat is rotatably equipped with a linkage arm, and the end of the linkage arm is rotatably sleeved on a drive pin.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects:

[0018] This invention provides several terminal block modules within the meter box, each containing a knob assembly for controlling the extension, retraction, clamping, and locking of the terminal head components. This allows for the automatic tightening of multiple connected wire heads, making the wire heads easy to install and remove while also providing mechanical protection to the connection points to prevent accidental short circuits. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a wiring device for an electric meter box and an electric meter box provided in one embodiment of the present invention.

[0021] Figure 2 This is a partial cross-sectional view of a wiring terminal module in an electric meter box wiring device provided in one embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the terminal block module in a meter box wiring device provided in one embodiment of the present invention.

[0023] Figure 4 for Figure 3 Enlarged schematic diagram of reference numeral A in the attached figure.

[0024] Figure 5 for Figure 3 Enlarged schematic diagram of reference numeral B in the attached figure.

[0025] Figure 6 This is a schematic diagram of the top structure of the terminal block module in an electric meter box wiring device provided in one embodiment of the present invention.

[0026] Figure 7 for Figure 6 Enlarged schematic diagram of the figure marked C in the attached diagram.

[0027] Figure 8 This is a schematic diagram of the bottom structure of the terminal block module in an electric meter box wiring device provided in one embodiment of the present invention.

[0028] Figure 9 for Figure 8 Enlarged schematic diagram of reference numeral D in the attached figure.

[0029] Reference numerals: 1-Box assembly, 101-Meter box, 102-Hanging bracket, 2-Terminal housing assembly, 201-Terminal bottom housing, 202-Slot, 203-Terminal top housing, 204-Circular groove, 205-Annular groove, 206-Top groove, 207-Side groove, 3-Knob assembly, 301-Knob seat, 302-Knob housing, 303-Locking rod, 304-Elastic element, 305-Angled pressure plate, 306-Trigger rod, 307-Trigger button, 308-Trigger pressure plate, 30 9-Bottom shaft rod, 310-Drive plate, 311-Drive pin, 312-Fan plate, 4-Terminal head assembly, 401-Terminal head housing, 402-Insert groove, 403-Connection groove, 404-Spring piece, 405-Guide post, 406-Limiting plate, 407-Sealing plate, 408-Blocking post, 5-Transmission assembly, 501-Conductive terminal, 502-Collar ring, 503-Side sliding groove, 504-Roller, 505-Threaded groove, 506-Transmission seat, 507-Linkage arm. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Please see Figures 1-9 According to one embodiment of the present invention, a meter box wiring device and a meter box are provided. The meter box wiring device and the meter box have relative first direction x, second direction y and third direction z. The meter box wiring device and the meter box include a box module and a terminal block module. A plurality of terminal blocks are arranged in an array in the box module. The terminal block module includes a terminal shell assembly 2, a knob assembly 3 and a terminal head assembly 4. The knob assembly 3 is rotatably mounted on the terminal shell assembly 2 and is used to switch the locked state of the terminal block module. The terminal head assembly 4 is movably mounted in the terminal shell assembly 2 and is linked to the knob assembly 3. The terminal head assembly 4 is used to clamp and press the wire to be connected. The box module includes a box assembly 1. The box assembly 1 includes a meter box 101 and a bracket 102. A plurality of brackets 102 are fixedly arranged in the meter box 101. A plurality of the terminal blocks are arranged in a linear array on the brackets 102.

[0033] In practical application, the enclosure module consists of a meter box 101 and a bracket 102. The meter box 101 has several brackets 102 arranged in an array inside, and each bracket 102 has several terminal block modules arranged in an array. Each terminal block module consists of a terminal housing assembly 2, a knob assembly 3, and a terminal head assembly 4. The knob assembly 3 is rotatably mounted on the terminal housing assembly 2, allowing the terminal block module to have a relative locked and open state. When the knob assembly 3 is in the open state, the terminal housing assembly 2... All terminal head assemblies 4 are in an outward-extending state so that the wire head to be connected can be clamped into the terminal head assembly 4. When the knob assembly 3 switches from the open state to the locked state, the terminal head assembly 4 retracts into the inner cavity of the terminal housing assembly 2, while continuously pressing and clamping the metal end of the wire head to ensure that the wire does not come loose and to increase the effective conductive area. At the same time, it can also pull the wire head to retract into the inner cavity of the terminal housing assembly 2 and cover and seal one side of the wire, so as to realize the wire connection and prevent accidental short circuit at the wire connection part.

[0034] Please see Figure 3 and Figure 4 In a preferred embodiment of the present invention, the terminal housing assembly 2 includes a terminal bottom housing 201, a slot 202, a terminal top housing 203, a circular groove 204, an annular groove 205, a top groove 206, and a side groove 207. One end of the terminal bottom housing 201 is provided with the slot 202, which is movably fastened to the bracket 102. The other end of the terminal bottom housing 201 is also provided with the terminal top housing 203. A space for... The assembly component has a volume cavity, and the terminal top shell 203 is also provided with a circular groove 204 in the middle. The inner wall of the circular groove 204 is provided with an annular groove 205. The end of the annular groove 205 is provided with a pin hole. Several top grooves 206 are provided on one side surface of the terminal top shell 203. The side grooves 207 are arranged close to the top grooves 206 and are provided on the other side surface of the terminal top shell 203. The top grooves 206 and the side grooves 207 are used to limit the assembly of the terminal head assembly 4.

[0035] In practical application, the slot 202 at one end of the terminal bottom shell 201 is movably fastened to the bracket 102. A circular groove 204 is provided on the terminal top shell 203 at the other end of the terminal bottom shell 201. An annular groove 205 is provided on one side of the inner wall of the circular groove 204. The knob assembly 3 is slidably fitted into the annular groove 205. Furthermore, several top grooves 206 and side grooves 207 are provided on the bottom of the knob assembly 3 and the terminal top shell 203. The top grooves 206 are arranged on the end... The top of the sub-top shell 203 has a side groove 207 arranged on the side of the terminal top shell 203. The terminal head assembly 4 is slidably assembled in the top groove 206 and the side groove 207 along the third direction z. When the wiring terminal module is in the open state, the terminal head assembly 4 is located at the highest point in the third direction z. When the wiring terminal module is in the locked state, the terminal head assembly 4 is located at the lowest point in the third direction z, thereby pulling the wire into the internal cavity of the terminal top shell 203.

[0036] Please see Figure 4 In a preferred embodiment of the present invention, the knob assembly 3 includes a knob seat 301, a knob shell 302, a locking rod 303, and an elastic element 304. The knob seat 301 is rotatably arranged in the circular groove 204, and the knob shell 302 is coaxially fixedly mounted on the knob seat 301. The locking rod 303 is slidably mounted on both sides of the knob shell 302, and the elastic element 304 is sleeved on the outer diameter end of the locking rod 303 so that the locking rod 303 and the knob shell 302 elastically abut against each other. One end of the locking rod 303 is slidably mounted in the annular groove 205 and is matched with the pin hole on the annular groove 205.

[0037] In practical application, the knob seat 301 is rotatably mounted in the circular groove 204. The operator can rotate the knob shell 302 in the xoy plane to drive the knob seat 301 to rotate along a fixed axis. The knob seat 301 is rotatably mounted on the circular groove 204 in the xoy plane. Since the locking rod 303 is elastically mounted in the knob shell 302 via the elastic element 304, and the end of the locking rod 303 is movably mounted in the annular groove 205, rotating the knob shell 302... During the process, the locking rod 303 slides synchronously at the inner diameter end of the annular groove 205, and when it abuts the inner diameter end of the annular groove 205, the elastic element 304 is in an elastic contraction state. When the locking rod 303 rotates to the pin hole at the end of the annular groove 205, the locking rod 303 slides into the pin hole at the end of the annular groove 205 to restrict the automatic reset of the knob housing 302 under the action of elastic force, and to switch the terminal module from the open state to the locked state.

[0038] Please see Figure 4In a preferred embodiment of the present invention, the knob assembly 3 further includes an inclined pressure plate 305, a trigger rod 306, a trigger button 307, and a trigger pressure plate 308. One end of the inclined pressure plate 305 is fixedly connected to the locking rod 303, and the other end of the inclined pressure plate 305 is slidably assembled in the knob housing 302. The inclined pressure plate 305 is provided with opposing sliding pin first surfaces a1. The trigger rod 306 is slidably assembled in the knob housing 302 and elastically connected to the knob housing 302. The trigger button 307 is rotatably assembled on the top of the trigger rod 306. The trigger pressure plate 308 is also coaxially fixedly provided on the trigger rod 306. The trigger pressure plate 308 is provided with opposing sliding pin second surfaces a2. The sliding pin second surfaces a2 and the sliding pin first surfaces a1 are in movable contact.

[0039] In practical application, one end of the inclined pressure plate 305 is fixedly connected to the locking rod 303, and the other end of the inclined pressure plate 305 is provided with a corresponding sliding pin first surface a1. The trigger rod 306 is elastically slidably mounted in the knob seat 301 along the third direction z. A trigger button 307 is provided on the top of the trigger rod 306, and a trigger pressure plate 308 is also fixedly provided on the shaft end of the trigger rod 306. The sliding pin second surface a2 on the end side of the trigger pressure plate 308 is in movable contact with the sliding pin first surface a1, so that the operator can... When the trigger button 307 is pressed, the trigger rod 306 moves synchronously in the negative direction of the third direction z, thereby causing the second surface a2 of the sliding pin to move against the first surface a1 of the sliding pin, so that the first surface a1 of the sliding pin moves closer to one end of the trigger rod 306 under the action of the thrust, thereby causing the inclined pressure plate 305 to synchronously pull the locking rod 303 to move, so that the locking rod 303 disengages from the pin hole in the annular groove 205. At this time, the knob seat 301 automatically rotates and resets under the action of the elastic force, so that the terminal module switches from the locked state to the open state.

[0040] Furthermore, the trigger button 307 and the trigger rod 306 are rotatably connected so that when the operator presses the trigger button 307, the trigger button 307 remains stationary in the xoy plane under the action of friction. When the trigger button 307 moves in the negative direction of the third direction z, since the trigger rod 306 is slidably fitted in the knob seat 301 along the third direction z and is rotatably connected to the trigger button 307, the trigger button 307 rotates relative to the knob housing 302 when the knob housing 302 rotates as a whole, and does not rotate and rub against the operator's fingers. This makes the operation feel of the trigger button 307 more ergonomic during the pressing process, and reduces hand wear when the operator adjusts multiple sets of terminal modules.

[0041] Please see Figure 5 , Figure 7 and Figure 9In a preferred embodiment of the present invention, the knob assembly 3 further includes a bottom shaft 309, a drive plate 310, a drive pin 311, and a fan plate 312. The bottom shaft 309 and the knob seat 301 are fixedly connected. The drive plate 310 and the fan plate 312 are coaxially fixedly disposed on the bottom shaft 309. The drive pin 311 is fixedly disposed on the drive plate 310. One end of the fan plate 312 is provided with opposing sliding first surfaces b1. The terminal head assembly 4 includes a terminal head housing 401, an insertion groove 402, a connecting groove 403, a spring piece 404, a guide post 405, and a limiting plate 406. The terminal head housing 401 is slidably assembled in the top groove 206, and the terminal head housing 401 has an insertion groove 402 and a connecting groove 403 in the middle, which are connected to each other. The two sides of the insertion groove 402 are also provided with spring pieces 404. The guide post 405 is fixedly assembled on the terminal bottom housing 201. One end of the limiting plate 406 is fixedly connected to the terminal head housing 401, and the other end of the limiting plate 406 is slidably assembled on the guide post 405 and elastically connected to the terminal bottom housing 201. The top of the terminal head housing 401 is provided with a corresponding pressing first surface c2.

[0042] In practical application, the bottom shaft rod 309 and the knob seat 301 are fixedly connected so that when the knob seat 301 rotates, the drive plate 310 and the fan plate 312 fixedly mounted on the bottom shaft rod 309 rotate synchronously. During the rotation of the drive plate 310, the drive pin 311 on it rotates synchronously with the drive plate 310, thereby driving the transmission assembly 5 through the drive pin 311. The terminal head housing 401 is slidably disposed in the top groove 206 and the side groove 207 along the third direction z, and the terminal head housing 401 is provided with an insertion groove 402 and a connection groove 403 in the middle. The insertion groove 402 and the connection groove 403 are connected. When the operator connects the wire, he first inserts the wire end along the insertion groove 402, so that... Both ends of the wire are elastically clamped between two sets of spring plates 404. During the feeding of the wire, the end of the wire slides into the connection groove 403. Since a limiting plate 406 is fixedly provided at one end of the terminal head housing 401, and the limiting plate 406 is elastically limited and slidably assembled on the guide post 405, during the transmission process, the terminal head housing 401 is driven to overcome the elastic force and move in the negative direction of the third direction z. This allows the terminal head housing 401 as a whole to pull the wire head towards the inner cavity of the terminal top housing 203. At the same time, the metal end of the wire head is continuously screwed and clamped to ensure that the wire does not loosen. The wire head is pulled to retract to the inner cavity of the terminal top housing 203, covering and sealing one side of the wire. This achieves wire connection while preventing accidental short circuit at the wire connection point.

[0043] Furthermore, the terminal head assembly 4 also includes a sealing plate 407 and a sealing post 408. The sealing plate 407 is slidably mounted on one side of the top groove 206, and one end of the sealing plate 407 is provided with a first pressing surface c1 that matches the first pressing surface c2. The sealing plate 407 is also provided with a sealing post 408 in the middle, and the other end of the sealing plate 407 is also provided with a corresponding sliding second surface b2. When the bottom shaft rod 309 rotates on a fixed axis, the drive pin 311 at one end of the drive plate 310 drives the terminal head housing 401 to move in the negative direction of the third direction z through the transmission assembly 5. At the same time, The sliding first surface b1 on one side of the fan plate 312 moves toward the sealing plate 407 and abuts against the sliding second surface b2, so that the sealing plate 407 moves in the positive direction of the first direction x. At this time, the terminal head housing 401 moves toward the side groove 207 in the third direction z. During the sliding process, the sealing post 408 at the bottom of the sealing plate 407 slides and engages with the top of the insertion groove 402, thereby pressing and sealing the top of the insertion groove 402. Since the sliding first surface b1 is a continuous curved surface, the sealing plate 407 can overcome the elastic force and always maintain the sliding extension state.

[0044] Please see Figure 9 In a preferred embodiment of the present invention, the terminal block module further includes a transmission assembly 5. The transmission assembly 5 includes a conductive terminal 501, a collar 502, a side sliding groove 503, a roller 504, a helical groove 505, a transmission seat 506, and a linkage arm 507. The conductive terminal 501 is slidably inserted into the connection groove 403. A collar 502 is fixedly provided at the bottom of the conductive terminal 501. One end of the collar 502 is equipped with a side sliding groove 503. The roller 504 is rotatably disposed at the bottom of the conductive terminal 501. The helical groove 505 is fixedly disposed on the terminal bottom shell 201 and movably abuts against the roller 504. The transmission seat 506 is slidably assembled in the terminal bottom shell 201. One end of the transmission seat 506 is slidably sleeved in the side sliding groove 503. The other end of the transmission seat 506 is rotatably equipped with a linkage arm 507. The end of the linkage arm 507 is rotatably sleeved on the drive pin 311.

[0045] In practical application, when the drive plate 310 drives the linkage arm 507 to move via the drive pin 311, and the drive plate 310 rotates to the side close to the transmission seat 506, the linkage arm 507 pushes the transmission seat 506 to its furthest distance along the first direction x. Since the transmission seat 506 is limited and slidably fitted in the side sliding groove 503, it can pull the collar 502 to move in the negative direction of the third direction z, thereby causing the conductive terminal 501 to move synchronously in the negative direction of the third direction z. At this time, the conductive terminal 501 can press the wire head inserted into the connecting groove 403 tightly. As the conductive terminal 501 continues to move, its bottom roller 504 moves against the threaded groove 505. The conductive terminal 501 spins in the xoy plane, thereby rotating and pressing the wire head against the bottom side of the connecting groove 403 during the rotation, ensuring the terminal head... The housing 401 and the wire are in full contact. When the sealing plate 407 moves in the positive direction of the first direction x, the terminal housing 401 moves towards the side groove 207 in the third direction z. During the sliding process, the sealing post 408 at the bottom of the sealing plate 407 slides and engages with the top of the insertion groove 402, thereby pressing and sealing the top of the insertion groove 402. Since the sliding first surface b1 is a continuous curved surface, the sealing plate 407 can overcome the elastic force and always maintain the sliding extended state. When the drive plate 310 rotates to the side away from the transmission seat 506, the transmission seat 506 moves in the negative direction of the first direction x, and the sealing plate 407 still maintains the extended state so that the pressing first surface c1 and the pressing second surface c2 are in contact, thereby restricting the elastic reset of the terminal housing 401 in the third direction z.

[0046] The present invention provides a meter box wiring device and a meter box in the above embodiments. By setting a number of wiring terminal modules in the meter box, and setting a knob assembly 3 in the wiring terminal module for controlling the extension and clamping and locking of the terminal head assembly 4, the device can automatically screw and tighten multiple sets of wire heads that are plugged in, making the wire heads easy to install and remove, and also providing mechanical protection for the connection parts to prevent accidental short circuits.

[0047] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electric meter box, characterized in that, The meter box includes a box module and a terminal block module. The box module has a plurality of terminal blocks arranged in an array. The terminal block module includes a terminal housing assembly, a knob assembly, and a terminal head assembly. The knob assembly is rotatably mounted on the terminal housing assembly and is used to switch the locked state of the terminal block module. The terminal head assembly is movably mounted in the terminal housing assembly and is linked to the knob assembly. The terminal head assembly is used to clamp and press the wire to be connected. The terminal housing assembly includes a terminal bottom housing, a slot, a terminal top housing, a circular groove, and an annular groove. The terminal bottom housing is also provided with a terminal top housing at one end. A volumetric cavity for assembling components is provided between the terminal bottom housing and the terminal top housing. The circular groove is also provided in the middle of the terminal top housing. The terminal housing assembly also includes a top groove and a side groove. The knob assembly includes a knob seat, a knob housing, a locking rod, and an elastic element. The knob seat is rotatably arranged in the circular groove with a fixed axis, and the knob housing is coaxially fixedly assembled on the knob seat. The knob assembly also includes a bottom shaft, a drive plate, a drive pin, and a fan plate. The bottom shaft and the knob seat are fixedly connected. The drive plate and the fan plate are coaxially fixed on the bottom shaft. The drive pin is fixedly installed on the drive plate. One end of the fan plate is provided with a first surface that slides against each other. The terminal head assembly includes a terminal head housing, an insertion groove, a connecting groove, a spring, a guide post, and a limiting plate. The terminal head housing is slidably assembled in the top groove, and the insertion groove and the connecting groove are opened in the middle of the terminal head housing. The insertion groove and the connecting groove are connected to each other. Springs are also arranged on both sides of the insertion groove. The guide post is fixedly assembled on the terminal bottom housing. One end of the limiting plate is fixedly connected to the terminal head housing, and the other end of the limiting plate is slidably assembled on the guide post and elastically connected to the terminal bottom housing. The top of the terminal head housing is provided with opposing pressing first surfaces. The terminal block module further includes a transmission assembly, which includes a conductive terminal, a collar, a side slide groove, a roller, a helical groove, a transmission seat, and a linkage arm. The conductive terminal is slidably inserted into the connection groove, and a collar is fixedly provided at the bottom of the conductive terminal. One end of the collar is equipped with a side slide groove. The roller is rotatably disposed at the bottom of the conductive terminal. The helical groove is fixedly arranged on the bottom shell of the terminal and movably abuts against the roller. The transmission seat is slidably disposed in the bottom shell of the terminal, and one end of the transmission seat is slidably sleeved in the side slide groove. The other end of the transmission seat is rotatably equipped with a linkage arm, and the end of the linkage arm is rotatably sleeved on a drive pin.

2. The meter box according to claim 1, characterized in that, The enclosure module includes an enclosure assembly, which includes an electric meter box and a mounting bracket. Several mounting brackets are fixedly installed in the electric meter box, and several of the aforementioned terminal block modules are arranged in a linear array on the mounting brackets.

3. The meter box according to claim 1, characterized in that, The other end of the terminal base is provided with a slot, which is movably fastened to the bracket. The inner wall of the circular groove is provided with an annular groove, and the end of the annular groove is provided with a pin hole.

4. The meter box according to claim 3, characterized in that, Several top grooves are disposed on one side surface of the terminal top shell, and side grooves are disposed close to the top grooves and on the other side surface of the terminal top shell. The top grooves and side grooves are used to limit the assembly of the terminal head assembly.

5. An electric meter box according to claim 3, characterized in that, Locking rods are slidably mounted on both sides of the knob housing, and an elastic element is sleeved on the outer diameter end of the locking rod to make the locking rod and the knob housing elastically abut against each other. One end of the locking rod is slidably mounted in the annular groove and matched with the pin hole on the annular groove.

6. The meter box according to claim 5, characterized in that, The knob assembly further includes a slanted pressure plate, a trigger rod, a trigger button, and a trigger pressure plate. One end of the slanted pressure plate is fixedly connected to the locking rod, and the other end of the slanted pressure plate is slidably assembled in the knob housing. The slanted pressure plate is provided with opposing sliding pin first surfaces. The trigger rod is slidably assembled in the knob housing and elastically connected to the knob housing. The trigger button is rotatably mounted on the top of the trigger rod. A trigger pressure plate is also coaxially fixedly mounted on the trigger rod. The trigger pressure plate is provided with opposing sliding pin second surfaces, and the sliding pin second surfaces and sliding pin first surfaces are in movable contact.

7. The meter box according to claim 1, characterized in that, The terminal assembly also includes a sealing plate and a sealing post. The sealing plate is slidably mounted on one side of the top groove, and one end of the sealing plate is provided with a first pressing surface that matches the first pressing surface. A sealing post is also provided in the middle of the sealing plate, and the other end of the sealing plate is provided with a corresponding sliding second surface.

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