A quick replacement base for electric meter

Abstract

The present invention relates to the technical field of power distribution equipment, and discloses a quick-change base for an electric meter. The quick-change base for the electric meter includes a base and a wiring module, and a plurality of mounting grooves are provided on the base. The wiring module can be inserted from the opening of the mounting groove and snapped into the mounting groove, and a cylindrical connector plug extends upward from the avoidance hole of the mounting groove. The quick-change base for the electric meter provided by the present invention has a modular design of the wiring module, which can be installed in the mounting groove by an overall assembly method, and can be applied to the production of quick-change bases for electric meters with different numbers of cylindrical connector plugs; the assembly positioning of the wiring module and the mounting groove can be achieved through simple operations, which further simplifies the installation process of the quick-change base for the electric meter and improves the production efficiency of the quick-change base for the electric meter.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution equipment, in particular to a quick-change base for an electric meter. Background Art

[0002] The electric meter is a supporting device of the power grid, which is responsible for data collection and measurement of raw electric energy. In the traditional electric meter box, the electric meter is connected to the wire in the electric meter box through the wiring hole set at the bottom. During installation, the wire is inserted into the wiring hole and fixedly connected to the wiring hole by screws. This screw-fixed wiring method has complicated assembly and disassembly procedures, low work efficiency, and the wire is easy to loosen.

[0003] In the prior art, there is an electric meter connector with a columnar connector that matches the wiring hole of the electric meter. During installation, the electric meter can be inserted into the electric meter connector by vertical insertion, so that the columnar connector of the electric meter connector is inserted from the wiring hole at the bottom of the electric meter, and the columnar connector is electrically connected to the wiring hole to achieve rapid replacement of the electric meter.

[0004] However, the existing meter connectors are assembled from parts during manufacture, and most of the parts cannot be used to manufacture meter connectors with different numbers of columnar connectors. In addition, the assembly process of the meter connectors is complicated, resulting in low production efficiency of the meter connectors. Summary of the invention

[0005] The object of the present invention is to provide a quick-change base for an electric meter, so as to solve the problems of low parts matching rate and complicated assembly process in the manufacturing process of the existing electric meter plug-in device.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] An electric meter quick-change base, comprising:

[0008] A base, the base comprising a back plate and a plurality of mounting slots arranged on the back plate, a avoidance hole is provided at the top of the front end of the mounting slot, and a first wire entry hole is also provided on the mounting slot;

[0009] A wiring module, the wiring module includes a module body and a cylindrical connector plug fixedly assembled on the module body, the module body can be inserted from the opening of the mounting groove and snapped into the mounting groove, the module body is provided with a second wire entry hole corresponding to the position of the first wire entry hole, the wire can pass through the first wire entry hole and the second wire entry hole to be connected to the cylindrical connector plug, and the cylindrical connector plug extends upward from the avoidance hole.

[0010] Optionally, a plurality of clamping holes are provided on the installation slot and / or the back plate, a plurality of clamping blocks are provided on the module body, and the module body is clamped in the installation slot with the clamping blocks through the clamping holes.

[0011] Optionally, the cylindrical connector is divided into a plurality of elastic connector pieces by a star-shaped groove, and the insertion ends of the elastic connector pieces protrude outwardly along the circumferential direction to form a protrusion.

[0012] Optionally, the wiring module further comprises a spring sheet, the spring sheet is bent as a whole, and one bent end thereof passes through a through hole formed on the other bent end;

[0013] A connecting piece is fixed to the bottom end of the cylindrical plug, the connecting piece is inserted into the through hole, and is clamped between the bent end and the through hole, and the wire can be clamped between the bent end and the connecting piece;

[0014] An installation cavity is provided in the module body, and the connecting piece and the elastic piece are inserted into the installation cavity from an opening provided at the side of the installation cavity.

[0015] Optionally, the wiring module also includes a push block, which is inserted into a push hole opened on the module body, and the bent end without a perforation corresponds to the position of the push hole. The push block can push the bent end without a perforation away from the connecting piece.

[0016] Optionally, a tool hole for a pressing tool to be inserted is provided on the module body, and the bent end with the perforation corresponds to the position of the tool hole. The pressing tool can push the bent end with the perforation downward to move the bottom end of the perforation away from the connecting piece.

[0017] Optionally, the wiring module further comprises a crimping frame and a screw component, wherein the crimping frame is located in a vertical sliding hole provided in the module body, the screw component is arranged in a positioning hole provided at the bottom of the module body, the screw component is screwed into a screw hole provided at the bottom of the crimping frame, and screwing the screw component can drive the crimping frame to rise and fall;

[0018] A connecting piece is fixed to the bottom end of the cylindrical plug, and the connecting piece is plugged into the crimping frame. The wire can be clamped between the top of the crimping frame and the connecting piece.

[0019] Optionally, the electric meter quick-change base also includes an electric meter anti-finger insulating plate, and the electric meter anti-finger insulating plate includes an insulating plate, and the insulating plate is slidably mounted on the back plate. The insulating plate has two positions when sliding up and down. In position A, the insulating plate can completely cover the top of the cylindrical connector, and in position B, the cylindrical connector can pass through the socket provided on the insulating plate.

[0020] Optionally, the electric meter anti-finger insulation plate further includes:

[0021] A clamp, two of which are arranged on both sides of the insulating plate, the clamp is located in a secondary limiting groove provided on the back plate, the clamp is not higher than the front surface of the back plate, and a limiting hole is provided on the clamp;

[0022] The clamp is configured such that when the electric meter and the insulating plate are moved to position B, the two raised first assembly holes on the back of the electric meter are engaged in the limiting holes, and the clamp and the insulating plate can be driven to move upward by the raised first assembly holes;

[0023] When the clamp moves to the top of the secondary limiting groove, the raised first assembly hole can be disengaged from the limiting hole, and the insulating plate can be suspended at position A;

[0024] A locking structure is provided between the insulating plate and the back plate, and the insulating plate can be suspended at position A through the locking structure, and the insulating plate can be detached from the locking structure when the electric meter is inserted.

[0025] Optionally, the anti-finger insulating plate of the electric meter also includes a spring, which is arranged between the insulating plate and the base. When the electric meter is not installed, the insulating plate is suspended in position A due to the push or pull force of the spring; when the electric meter is installed, the insulating plate is pressed down to position B by the electric meter; after the electric meter is removed, the insulating plate is restored to position A due to the push or pull force of the spring.

[0026] Optionally, the locking structure includes a third elastic plate, the third elastic plate is formed by a U-shaped groove opened on the back plate, the top of the third elastic plate is fixed to the back plate, and the bottom can swing forward and backward along the back plate;

[0027] The third elastic plate is provided with an arc-shaped protrusion, and a limit block is provided at the bottom end of the third elastic plate, and the limit block can prevent the insulating plate from moving downward by clamping;

[0028] The limit block is configured such that when the arc-shaped protrusion and the front plane of the back plate are located in the same plane, the limit block moves backward to a position not higher than the front plane of the back plate.

[0029] Optionally, a lifting piece is provided on the insulating plate, the lifting piece comprises a horizontal bar and a vertical bar bent in an L-shape, the top of the vertical bar is provided with a bent end bent toward the upper rear of the back plate, the bottom end of the third elastic plate is provided with a notch extending upward, the lifting piece can extend into the notch and slide up and down along the notch;

[0030] One of the side walls of the notch is a wedge-shaped body, and one end of the wedge-shaped body located on the back of the back plate is inclined toward the notch. When the bent end moves upward, the bottom end of the wedge-shaped body can connect with the top surface of the bent end and slide forward along the top surface of the bent end to the front side of the vertical rod.

[0031] Beneficial effects of the present invention:

[0032] 1. The electric meter quick-change base provided by the present invention has a modular design of the wiring module, which can be installed in the installation groove by overall assembly, and can be applied to the production of electric meter quick-change bases with different numbers of cylindrical connectors.

[0033] 2. The electric meter quick-change base provided by the present invention can realize the assembly and positioning of the wiring module and the installation groove through simple operations, further simplifying the installation process of the electric meter quick-change base and improving the production efficiency of the electric meter quick-change base. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the electric meter involved in the present invention;

[0035] Figure 2 A schematic diagram of the overall structure of the electric meter quick-change base provided by the present invention;

[0036] Figure 3 A schematic diagram of the internal disassembly structure of the electric meter quick replacement base provided by the present invention from a first-person perspective;

[0037] Figure 4 A schematic diagram of the internal disassembly structure of the electric meter quick replacement base provided by the present invention from a second viewing angle;

[0038] Figure 5 An exploded view of a wiring module for the electric meter quick replacement base provided by the present invention;

[0039] Figure 6 A schematic diagram of the overall structure of a wiring module of the electric meter quick-change base provided by the present invention from a first-view perspective;

[0040] Figure 7 A schematic diagram of the overall structure of a wiring module of the electric meter quick-change base provided by the present invention from a second perspective;

[0041] Figure 8 An exploded view of another wiring module for the electric meter quick replacement base provided by the present invention;

[0042] Fig. 9 A schematic diagram of the overall structure of another wiring module for the electric meter quick-change base provided by the present invention;

[0043] Fig.10An exploded view of another wiring module for the electric meter quick replacement base provided by the present invention;

[0044] Fig.11 A schematic cross-sectional structure diagram of another wiring module of the electric meter quick-change base provided by the present invention;

[0045] Fig.12 A schematic diagram of the overall disassembly structure of the electric meter quick replacement base provided by the present invention;

[0046] Fig.13 A schematic diagram of the position structure of the pick and notch of the electric meter quick replacement base provided by the present invention;

[0047] Fig.14 A schematic diagram of the position structure of the clamp and the primary limit groove of the electric meter quick replacement base provided by the present invention;

[0048] Fig.15 A schematic diagram of the structure of the clamp for the quick replacement base of an electric meter provided by the present invention;

[0049] Fig.16 A schematic diagram of the overall structure of the insulating plate of the electric meter quick-change base provided by the present invention.

[0050] In the figure:

[0051] 100 - base;

[0052] 110-back plate; 1101-hook; 11011-first elastic plate; 11012-stop block; 1102-guide groove; 112-second clamping hole; 113-second elastic plate; 114-slide groove; 115-third elastic plate; 1151-arc-shaped protrusion; 1152-limiting block; 1153-notch; 116-first-level limiting groove; 117-second-level limiting groove; 1171-buffer groove; 118-second assembly hole;

[0053] 120-installation slot; 121-avoidance hole; 122-first clamping hole; 123-first wire entry hole;

[0054] 130-side baffle; 131-front baffle;

[0055] 200-wiring module;

[0056] 210-module body; 211-first clamping block; 212-second clamping block; 213-installation cavity; 2131-first support platform; 2132-second support platform; 2133-sliding hole; 2134-clamping plate; 21341-rotation hole; 2135-positioning hole; 21351-clamping ring; 214-advance hole; 215-second wire entry hole; 216-tool hole;

[0057] 220- cylindrical plug; 2201- protrusion; 221- first connecting piece; 2211- hook plate; 222- second connecting piece; 2221- limiting protrusion; 223- third connecting piece;

[0058] 230 - first spring sheet; 231 - first bending end; 2311 - first perforation; 232 - second bending end;

[0059] 240-Push block;

[0060] 250 - second spring sheet; 251 - third bending end; 2511 - second perforation; 252 - fourth bending end;

[0061] 260-crimping frame; 261-threaded hole;

[0062] 270-threaded parts;

[0063] 300-insulating plate; 301-top plate; 302-front plate; 303-side plate; 310-connecting hole; 320-sliding block; 330-lifting piece; 331-cross bar; 332-vertical bar; 333-bending end; 340-clamping piece; 341-limiting hole; 342-first clamping strip; 343-second clamping strip; 350-rib plate; 360-side groove; 370-supporting rod;

[0064] 400-electricity meter; 410-wiring hole; 420-hanging hole; 430-first assembly hole; 440-guide strip;

[0065] 500-wire. DETAILED DESCRIPTION

[0066] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0067] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0069] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0070] The present embodiment provides an electric meter quick-change base to solve the problem that the wiring method of fixing the wires by screws in the traditional electric meter box is complicated and the wires are easy to loosen, and the existing electric meter connector device that can be vertically inserted into the electric meter has the problem that the parts of the electric meter connector device are not universal, the assembly process is cumbersome, and the assembly efficiency is low during the production process.

[0071] Figure 1 This is a schematic diagram of the structure of the electric meter involved in the present invention, referring to Figure 1 As shown, the bottom of the electric meter 400 is provided with a plurality of wiring holes 410, the top of the back of the electric meter 400 is provided with a hanging hole 420, the bottom of the back of the electric meter 400 is provided with first assembly holes 430 protruding outward on both sides, and the top of the back of the electric meter 400 is provided with protruding guide strips 440 on both sides.

[0072] Figure 2 This is a schematic diagram of the overall structure of the electric meter quick replacement base provided by the present invention, refer to Figure 2 As shown, the electric meter quick-change base provided in this embodiment includes a base 100 and a wiring module 200 , and also includes an insulating plate 300 covered on the bottom of the base 100 .

[0073] Among them, the base 100 includes a back plate 110 and a plurality of installation grooves 120 arranged at the bottom end of the back plate 110. The back plate 110 is provided with a hook 1101 and a guide groove 1102. When installing the electric meter 400, the guide bar 440 on the back of the electric meter 400 can slide along the guide groove 1102 to provide a guide for the displacement of the electric meter 400. When the electric meter 400 is installed in place, the hook 1101 can be hooked in the hanging hole 420 on the back of the electric meter 400 to position the electric meter 400.

[0074] In order to prevent the hook 1101 from protruding and causing the electric meter 400 to separate from the back plate 110, or the hook 1101 to mistakenly enter the hanging hole 420, thereby affecting the installation of the electric meter 400, in this embodiment, the hook 1101 is arranged on the first elastic plate 11011, the bottom end of the first elastic plate 11011 is fixed to the back plate 110, and the top can swing back and forth along the back plate 110, and a stopper 11012 is fixed to the top of the first elastic plate 11011. When installing the electric meter 400, the back side of the electric meter 400 abuts against the stopper 11012, so that the top of the first elastic plate 11011 swings backward until the stopper 11012 and the hook 1101 move back to below the front surface of the back plate 110, so that the electric meter 400 can fit against the back plate 110, thereby preventing the hook 1101 from affecting the movement of the electric meter 400.

[0075] It is worth mentioning that in the present embodiment, the insulating plate 300 is slidably mounted on the back plate 110. When the electric meter 400 is not installed, the insulating plate 300 can be positioned at position A and covered above the columnar plug 220. When the electric meter 400 is installed, the insulating plate 300 can be driven by the electric meter 400 to move downward to position B, so that the columnar plug 220 can be smoothly inserted into the wiring hole 410 of the electric meter 400. In the present embodiment, position B is the position where the insulating plate 300 is in contact with the base 100 and cannot move downward. When the electric meter 400 is removed, the insulating plate 300 can be driven by the electric meter 400 to move upward, and when the electric meter 400 is removed, it returns to the state of position A.

[0076] In this embodiment, the electric meter quick-change base further includes side baffles 130 fixed to both sides of the back plate 110, the front end of the side baffles 130 is tilted inwards, so that the electric meter 400 can be close to the back plate 110, and the front end of the side baffles 130 is provided with a front baffle 131 bent inwards, which can prevent the electric meter 400 from falling off the base 100. The fixing method of the side baffles 130 can be selected to be integrally formed with the base 100, or other existing fixing connection methods can be selected.

[0077] Figure 3 This is a schematic diagram of the internal disassembly structure of the electric meter quick replacement base provided by the present invention from a first-person perspective, Figure 4 This is a schematic diagram of the internal disassembly structure of the electric meter quick replacement base provided by the present invention from a second perspective, referring to Figure 3and Figure 4 As shown, in this embodiment, the front and rear ends of the mounting groove 120 protrude from the front and rear sides of the back plate 110, and a avoidance hole 121 is provided at the top of the front end of the mounting groove 120, and a first wire entry hole 123 is also provided on the mounting groove 120. In this embodiment, the bottom of the mounting groove 120 is an opening, and the first wire entry hole 123 is provided at the rear end of the mounting groove 120. In other embodiments, the opening of the mounting groove 120 can also be provided at other positions, such as the front end of the mounting groove 120, and the first wire entry hole 123 can also be provided at the bottom end of the mounting groove 120 as required.

[0078] The wiring module 200 includes a module body 210 and a cylindrical plug 220 fixedly assembled on the module body 210, wherein the module body 210 can be inserted from the opening of the mounting groove 120 and snap-fitted into the mounting groove 120, and a second wire entry hole 215 corresponding to the position of the first wire entry hole 123 is provided on the module body 210, and the wire 500 can pass through the first wire entry hole 123 and the second wire entry hole 215 to be electrically connected to the cylindrical plug 220; the cylindrical plug 220 is made of conductive metal, and the size of the cylindrical plug 220 matches the size of the wiring hole 410 of the electric meter 400, and the cylindrical plug 220 extends upward from the avoidance hole 121. When in use, the cylindrical plug 220 is plugged into the wiring hole 410 provided at the bottom end of the electric meter 400.

[0079] The electric meter quick-change base provided in this embodiment has a wiring module 200 of modular design, which can be installed in the installation groove 120 by overall assembly, and can be applied to the production of electric meter quick-change bases with different numbers of cylindrical connectors 220; at the same time, the assembly and positioning of the wiring module 200 and the installation groove 120 can be achieved through simple operations, further simplifying the installation process of the electric meter quick-change base and improving the production efficiency of the electric meter quick-change base.

[0080] Continue to refer Figure 3 and Figure 4 As shown, in this embodiment, a plurality of clamping holes are provided on the installation slot 120 and / or the back plate 110 , and a plurality of clamping blocks are provided on the module body 210 . The module body 210 can be clamped in the installation slot 120 through the clamping holes and the clamping blocks.

[0081] Specifically, in this embodiment, a first card hole 122 is opened at the front end of the installation slot 120, a second card hole 112 is opened on the back plate 110, and a first card block 211 and a second card block 212 are provided on the module body 210. The first card block 211 is snapped into the first card hole 122, and the second card block 212 is snapped into the second card hole 112, so that the module body 210 can be positioned in the installation slot 120.

[0082] Of course, the present invention is not limited to this. In some other embodiments, a card hole may be opened at other positions of the installation slot 120 and / or the back panel 110, and a card block corresponding to the position of the card hole may be provided on the module body 210, so that the module body 210 can be connected to the installation slot 120 through the card hole and the card block, thereby facilitating the rapid assembly of the module body 210.

[0083] Furthermore, in this embodiment, the cylindrical plug 220 is divided into four elastic plug pieces by a star-shaped groove, and the insertion end of the elastic plug piece protrudes outward along the circumferential direction to form a protrusion 2201. The purpose of this design is that when in use, the protrusion 2201 can abut against the side wall of the wiring hole 410 of the electric meter 400, so as to improve the firmness and tightness of the plugging of the cylindrical plug 220 and the wiring hole 410, and ensure the smooth transmission of current.

[0084] The wiring module 200 provided in this embodiment includes a spring sheet in addition to the module body 210. The spring sheet is bent as a whole, and one of its bent ends passes through a through hole opened on the other bent end; a metal connecting piece is fixed to the bottom end of the cylindrical plug 220, and the connecting piece is inserted into the through hole and clamped between the bent end and the through hole. When in use, the wire 500 can be clamped between the bent end and the connecting piece, and is electrically connected to the connecting piece and the cylindrical plug 220. An installation cavity 213 is opened in the module body 210, and the connecting piece and the spring sheet are inserted into the installation cavity 213 from the opening set on the side of the installation cavity 213 to form a modular wiring module 200 structure.

[0085] Specifically, Figure 5-Figure 7 As shown, as a specific embodiment, the wiring module 200 includes a first spring piece 230 in addition to the module body 210. The first spring piece 230 is bent as a whole, and its second bent end 232 passes through the first through hole 2311 opened on the first bent end 231; a metal first connecting piece 221 is fixed to the bottom end of the cylindrical plug 220, and the first connecting piece 221 is inserted into the first through hole 2311 and clamped between the second bent end 232 and the first through hole 2311. When in use, the wire 500 can be clamped between the second bent end 232 and the first connecting piece 221, and is electrically connected to the first connecting piece 221 and the cylindrical plug 220. An installation cavity 213 is opened in the module body 210, and the first connecting piece 221 and the first spring piece 230 are inserted into the installation cavity 213 from the opening set on the side of the installation cavity 213 to form a modular wiring module 200 structure.

[0086] As a preferred solution, in this embodiment, a hook plate 2211 is provided at the free end of the first connecting piece 221, and the hook plate 2211 is bent downward. The width of the hook plate 2211 is smaller than the width of the first connecting piece 221. The hook plate 2211 can be snapped into the bottom end of the first through hole 2311 and is tightened by the end of the second bent end 232, so as to facilitate the positioning of the first connecting piece 221 and the first spring piece 230 during assembly.

[0087] In addition, the wiring module 200 also includes a push block 240, and in the wiring module 200, the second bent end 232 is bent downward from the top of the installation cavity 213 and corresponds to the position of the push hole 214. The push block 240 is inserted into the push hole 214 opened on the module body 210. Pushing the push block 240 inward can push the second bent end 232 away from the first connecting piece 221, forming a gap between the second bent end 232 and the first connecting piece 221, which is convenient for plugging and extracting the wire 500.

[0088] like Figure 8 and Fig. 9 As shown, as another specific embodiment, the wiring module 200 includes a second spring piece 250 in addition to the module body 210. The second spring piece 250 is bent as a whole, and its fourth bent end 252 passes through the second through hole 2511 opened on the third bent end 251; a metal second connecting piece 222 is fixed to the bottom end of the cylindrical plug 220, and the second connecting piece 222 is inserted into the second through hole 2511 and clamped between the fourth bent end 252 and the second through hole 2511. When in use, the wire 500 can be clamped between the bent end and the connecting piece, and is electrically connected to the second connecting piece 222 and the cylindrical plug 220. An installation cavity 213 is opened in the module body 210, and the second connecting piece 222 and the second spring piece 250 are inserted into the installation cavity 213 from the opening set on the side of the installation cavity 213 to form a modular wiring module 200 structure.

[0089] The module body 210 is provided with a tool hole 216 for a strip-shaped pressing tool to extend into. The third bent end 251 is bent downward from the top of the mounting cavity 213 and corresponds to the position of the tool hole 216. The pressing tool can push the third bent end 251 downward to move the bottom end of the second through hole 2511 away from the second connecting piece 222, so as to facilitate the insertion and extraction of the wire 500.

[0090] As a preferred solution, in this embodiment, limiting protrusions 2221 are provided on both sides of the second connecting piece 222, so that the third bent end 251 can be limited in the channel formed by the limiting protrusion 2221 and the side wall of the installation cavity 213, so that when the third bent end 251 is subjected to force, it can move downward along the limited channel, thereby ensuring that the second perforation 2511 can be quickly separated from the second connecting piece 222.

[0091] In other embodiments, Fig.10 and Fig.11 As shown, in addition to the module body 210, the wiring module 200 also includes a crimping frame 260 and a screw member 270, wherein the crimping frame 260 is located in a vertical sliding hole 2133 opened in the module body 210 and can move up and down along the vertical sliding hole 2133, and the screw member 270 is set in a positioning hole 2135 opened at the bottom of the module body 210. The screw member 270 is screwed in a screw hole 261 set at the bottom of the crimping frame 260, and screwing the screw member 270 can drive the crimping frame 260 to rise and fall.

[0092] Specifically, a clamping plate 2134 is provided at the top of the positioning hole 2135, and a clamping ring 21351 protruding into the positioning hole 2135 is provided in the positioning hole 2135. Since the module body 210 is made of materials such as plastic with a certain elasticity, when the threaded member 270 is installed, the positioning hole 2135 and the clamping ring 21351 are squeezed and deformed, so that the cap end of the threaded member 270 can enter and be clamped between the clamping ring 21351 and the clamping plate 2134, and can rotate along its axial direction.

[0093] A third metal connecting piece 223 is fixed to the bottom end of the cylindrical plug 220, and the third connecting piece 223 is inserted into the crimping frame 260, and the wire 500 can be clamped between the top of the crimping frame 260 and the connecting piece. When the wire 500 is plugged in, the crimping frame 260 can be driven to rise and fall by screwing the screw member 270, thereby changing the distance between the top of the crimping frame 260 and the connecting piece, so as to facilitate the plugging and extraction of the wire 500.

[0094] Fig.12 This is a schematic diagram of the overall disassembly structure of the electric meter quick replacement base provided by the present invention, refer to Fig.12 As shown, in this embodiment, the insulating plate 300 can be buckled on the top and periphery of the columnar plug 220 to shield the columnar plug 220 and prevent the operator from touching the columnar plug 220 and causing electric shock.

[0095] Specifically, in this embodiment, the anti-finger insulating plate of the electric meter also includes a clamp 340 arranged on both sides of the insulating plate 300, wherein the insulating plate 300 is surrounded by a top plate 301, a front plate 302 and two side plates 303 to form a dustpan shape, and a connector hole 310 for the cylindrical connector 220 to pass through is opened on the top plate 301, and the insulating plate 300 can move up and down along the back plate 110.

[0096] The clamp 340 is located in the secondary limiting groove 117 provided on the back plate 110, and the clamp 340 is not higher than the front surface of the back plate 110 to avoid the electric meter 400 from tilting during installation. The clamp 340 is provided with a limiting hole 341;

[0097] The clamp 340 is configured such that when the electric meter 400 and the insulating plate 300 move to position B, the two raised first assembly holes 430 on the back of the electric meter 400 are engaged in the limiting holes 341, and the clamp 340 and the insulating plate 300 can be driven to move upward by the raised first assembly holes 430;

[0098] When the clamp 340 moves to the top of the secondary limiting groove 117, the raised first assembly hole 430 can be disengaged from the limiting hole 341, and the insulating plate 300 can be suspended at position A; when the insulating plate 300 is suspended at position A, the top plate 301 is located above the cylindrical plug 220, and the front plate 302 blocks the front side of the cylindrical plug 220;

[0099] A locking structure is provided between the insulating plate 300 and the back plate 110 , and the insulating plate 300 can be suspended at position A through the locking structure, and the insulating plate 300 can be detached from the locking structure when the electric meter 400 is inserted.

[0100] The finger-proof insulating plate of an electric meter provided by the present invention, when the electric meter 400 is inserted, the insulating plate 300 falls from the locking structure, and the cylindrical plug 220 extends from the plug hole 310 and is inserted into the wiring hole 410 at the bottom end of the electric meter 400; when the electric meter 400 is taken out, the two raised first assembly holes 430 on the back of the electric meter 400 drive the locking member 340 and the insulating plate 300 to move upward, and are positioned above the cylindrical plug 220 through the locking structure.

[0101] The finger-proof insulating plate of the electric meter can always shield the cylindrical connector 220 without affecting the installation operation of the electric meter 400, thereby reducing the risk of electric shock during the installation of the electric meter 400 and improving the safety of the installation of the electric meter 400; at the same time, the movement and positioning of the insulating plate 300 can be automatically completed when the electric meter 400 is inserted and removed, without the need for additional installation and disassembly, thereby reducing the operating steps when the electric meter 400 is installed and disassembled, and speeding up the efficiency of the electric meter 400.

[0102] Continue to refer Fig.12 As shown, in order to limit the moving trajectory of the insulating plate 300, in this embodiment, a slide groove 114 is opened on the back plate 110. The slide groove 114 is a wedge-shaped groove with a wedge-shaped cross-section, which is located at one end of the back side of the back plate 110 and expands outward. A slider 320 is provided on the insulating plate 300. The slider 320 matches the shape of the slide groove 114. The slider 320 is inserted into the slide groove 114 and slides up and down along the length direction of the slide groove 114 to prevent the slider 320 from falling off from the front of the back plate 110.

[0103] At the same time, in order to prevent the slider 320 from falling out of the top of the slide slot 114, a second elastic plate 113 is provided on the back plate 110 above the slide slot 114. The second elastic plate 113 is formed by a U-shaped groove opened on the back plate 110. The top of the second elastic plate 113 is fixed to the back plate 110, and the bottom can swing forward and backward along the back plate 110. The distance between the bottom end of the second elastic plate 113 and the top of the slide slot 114 is less than the length of the slider 320. When in use, the second elastic plate 113 can be pressed to swing toward the back of the back plate 110, and then the slider 320 can be inserted into the slide slot 114. After the slider 320 is inserted into the slide slot 114, the second elastic plate 113 returns to a vertical state, which can prevent the slider 320 from falling out of the top of the slide slot 114.

[0104] In this embodiment, the locking structure includes a third elastic plate 115, which is formed by a U-shaped groove opened on the back plate 110. The top of the third elastic plate 115 is fixed to the back plate 110, and the bottom can swing back and forth along the back plate 110; an arc-shaped protrusion 1151 is provided on the front surface of the third elastic plate 115, and a limit block 1152 extending toward the front of the back plate 110 is provided at the bottom end of the third elastic plate 115, and the limit block 1152 can prevent the insulating plate 300 from moving downward by locking.

[0105] The stopper 1152 is configured such that when the arc-shaped protrusion 1151 and the front plane of the back plate 110 are located in the same plane, the stopper 1152 moves back to a position not higher than the front plane of the back plate 110, and does not block the insulating plate 300. In use, when the electric meter 400 is plugged in, the arc-shaped protrusion 1151 and the third elastic plate 115 are pushed to swing to the rear of the back plate 110, and the stopper 1152 loses its clamping effect on the insulating plate 300, and the insulating plate 300 falls, exposing the cylindrical connector 220.

[0106] Of course, the present invention is not limited to this. The locking structure can also be an elastic member that can be extended and retracted along the front and back of the back plate 110. The elastic member is locked by setting a slot on the insulating plate 300, and the elastic member can be disengaged from the slot under the downward thrust when the electric meter 400 is installed.

[0107] As a preferred solution, there are two third elastic plates 115 symmetrically disposed on both sides of the back plate 110 to ensure the stability of the positioning of the insulating plate 300 .

[0108] Fig.13 The schematic diagram of the position structure of the pick and notch of the finger-proof insulation board of the electric meter provided by the present invention is shown in FIG. Fig.13As shown, in this embodiment, in order to prevent the third elastic plate 115 from being unable to return to the vertical state, thereby causing the limit block 1152 to lose the clamping effect on the insulating plate 300, the insulating plate 300 is further provided with a lifting piece 330, the lifting piece 330 includes a horizontal bar 331 and a vertical bar 332 bent in an L shape toward the upper rear of the insulating plate 300, and the top of the vertical bar 332 is provided with a bent end 333 bent toward the upper rear of the back plate 110, and the bottom end of the third elastic plate 115 is provided with a notch 1153 extending upward, and the lifting piece 330 can extend into the notch 1153 and slide up and down along the notch 1153;

[0109] One of the side walls of the notch 1153 is a wedge-shaped body, and one end of the wedge-shaped body is located on the back side of the back plate 110 and is inclined toward the notch. When the bent end 333 moves upward, the bottom end of the wedge-shaped body can connect with the top surface of the bent end 333 and slide forward along the top surface of the bent end 333 to the front side of the vertical rod 332, so that the third elastic plate 115 is restored to a vertical state, and the arc-shaped protrusion 1151 on the third elastic plate 115 protrudes from the front surface of the back plate 110.

[0110] Preferably, the free end of the bent end 333 is wedge-shaped so that the bent end 333 can smoothly enter the notch 1153 during installation.

[0111] Fig.14 The schematic diagram of the position structure of the clamp and the primary limit groove of the finger-proof insulation board of the electric meter provided by the present invention is shown in FIG. Fig.14 As shown, in this embodiment, a first-level limiting groove 116 is provided on the back plate 110, and a second-level limiting groove 117 is provided at the bottom of the first-level limiting groove 116; the purpose of this design is to reduce the engagement depth between the first assembly hole 430 protruding on the back of the electric meter 400 and the limiting hole 341, thereby reducing the difficulty of the first assembly hole 430 escaping from the limiting hole 341.

[0112] In order to further reduce the difficulty of disengaging the first assembly hole 430, in this embodiment, a buffer groove 1171 is provided at the top of the bottom of the secondary limiting groove 117, and the top of the clamping member 340 can swing into the buffer groove 1171. Furthermore, the bottom of the buffer groove 1171 is an inclined surface to prevent the stress from concentrating on the outer edge of the buffer groove 1171 when the clamping member 340 is bent, causing the clamping member 340 to break.

[0113] Fig.15 The schematic diagram of the card structure of the anti-finger insulation board of the electric meter provided by the present invention is shown in FIG. Fig.14 and Fig.15As shown, in this embodiment, the structure above the limiting hole 341 is a first clamping strip 342, the surface of the first clamping strip 342 is flush with the surface of the secondary limiting groove 117, and the upper and lower side walls of the first clamping strip 342 are both inclined surfaces, so that the first assembly hole 430 of the electric meter 400 can enter the limiting hole 341 downward and detach from the limiting hole 341 upward.

[0114] Furthermore, a raised second clip 343 is provided below the limiting hole 341 to prevent the first assembly hole 430 from slipping off the bottom of the limiting hole 341. Preferably, the surface of the second clip 343 is not higher than the front plane of the back plate 110 to prevent the bottom of the electric meter 400 from tilting when installed.

[0115] Fig.16 The overall structural diagram of the anti-finger insulation board of the electric meter provided by the present invention is shown in FIG. Fig.16 As shown, in this embodiment, a rib plate 350 is provided in the insulating plate 300 , the slider 320 is fixed to the top of the support rod 370 , and the lifting piece 330 and the support rod 370 are both fixed to the rib plate 350 to ensure the mechanical strength of the lifting piece 330 and the slider 320 .

[0116] Furthermore, in this embodiment, the insulating plate 300 slides up and down along the outer wall of the mounting groove 120. In order to improve the size adaptability of the insulating plate 300 and the bottom structure of the back plate 110, a plurality of side grooves 360 are opened at the rear edge of the top plate 301 of the insulating plate 300. The side grooves 360 can improve the ductility of the top surface of the insulating plate 300, so that the insulating plate 300 can fit tightly with the outer wall of the structure arranged at the bottom of the back plate 110 within a certain range, thereby ensuring its stability when sliding up and down.

[0117] Electricity meter 400 disassembly and assembly process:

[0118] In the initial state, the insulating plate 300 is stuck by the limiting block 1152 and is in position A, buckled above the cylindrical connector 220 .

[0119] During installation: the electric meter 400 moves downward, the back of the electric meter 400 contacts the arc-shaped protrusion 1151 provided on the front surface of the third elastic plate 115, the bottom end of the third elastic plate 115 swings toward the rear of the back plate 110, and the limit block 1152 moves backward at the same time. The insulating plate 300 is separated from the limit block 1152 and falls down, and the cylindrical connector 220 extends from the connector hole 310 at the top of the insulating plate 300 and is inserted into the wiring hole 410 provided at the bottom end of the electric meter 400 as the electric meter 400 moves downward.

[0120] When the electric meter 400 moves to the lowest end, i.e., position B, the two raised first assembly holes 430 on the back of the electric meter 400 slide over the upper clamping strip 342 and are clamped between the two clamping strips 342. A threaded fastener is passed through the first assembly hole 430 and screwed into the second assembly hole 118 opened at the bottom of the limiting groove 116.

[0121] During disassembly: the electric meter 400 moves upward, driving the clamp 340 and the insulating plate 300 to move upward. When the clamp 340 moves to the top of the limiting groove 116, the electric meter 400 separates from the arc-shaped protrusion 1151, the third elastic plate 115 returns to the vertical state, the limiting block 1152 moves forward and is clamped on the insulating plate 300, and the insulating plate 300 returns to the initial state before installation, that is, position A. At this time, the electric meter 400 can be taken out forward.

[0122] In other embodiments, the insulating plate 300 can also be interchanged between position A and position B by a spring (not shown), which is arranged between the insulating plate 300 and the base 100, and can be arranged below or above the insulating plate 300. When the electric meter is not installed, the insulating plate 300 is suspended at position A by the thrust of the spring in the compressed state below, or by the tension of the spring in the stretched state above; when the electric meter 400 is installed, the electric meter 400 presses down the insulating plate 300, overcomes the spring force, and the insulating plate 300 is pressed down to position B, and is kept at position B by the gravity of the electric meter 400; when the electric meter 400 is disassembled, after the electric meter 400 is removed, the insulating plate 300 is restored to the state of position A by the thrust or tension of the spring.

[0123] Note: For fixing methods not explicitly stated in the text, common fixing connection methods such as threaded connection, welding or bonding can be selected as needed.

[0124] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A quick-change base for an electric meter, characterized in that: include: A base (100), the base (100) comprising a back plate (110) and a plurality of mounting grooves (120) arranged on the back plate (110), a avoidance hole (121) being provided at the top of the front end of the mounting groove (120), and a first wire entry hole (123) being provided on the mounting groove (120); A wiring module (200), the wiring module (200) comprising a module body (210) and a cylindrical plug (220) fixedly mounted on the module body (210), the module body (210) being insertable from an opening of the mounting groove (120) and snap-fitted into the mounting groove (120), the module body (210) being provided with a second wire entry hole (215) corresponding to the position of the first wire entry hole (123), the wire (500) being able to pass through the first wire entry hole (123) and the second wire entry hole (215) to be connected to the cylindrical plug (220), the cylindrical plug (220) extending upward from the avoidance hole (121); The wiring module (200) further comprises a spring sheet, the spring sheet is bent as a whole, and one bent end thereof passes through a through hole provided on the other bent end; A connecting piece is fixed to the bottom end of the cylindrical plug (220), the connecting piece is inserted into the through hole and clamped between the bent end and the through hole, and the wire (500) can be clamped between the bent end and the connecting piece; An installation cavity (213) is provided in the module body (210), and the connecting piece and the elastic piece are inserted into the installation cavity (213) from an opening provided on the side of the installation cavity (213).

2. The electric meter quick-change base according to claim 1, characterized in that: A plurality of clamping holes are provided on the installation slot (120) and / or the back plate (110), a plurality of clamping blocks are provided on the module body (210), and the module body (210) is clamped in the installation slot (120) through the clamping holes and the clamping blocks.

3. The electric meter quick-change base according to claim 1, characterized in that: The cylindrical connector (220) is divided into a plurality of elastic connector pieces by a star-shaped groove, and the insertion ends of the elastic connector pieces protrude outwardly along the circumferential direction to form a protruding portion (2201).

4. The electric meter quick-change base according to claim 1, characterized in that: The wiring module (200) further comprises a push block (240), wherein the push block (240) is inserted into a push hole (214) provided on the module body (210), wherein the bent end without a perforation corresponds to the position of the push hole (214), and the push block (240) can push the bent end without a perforation away from the connecting piece.

5. The electric meter quick-change base according to claim 1, characterized in that: The module body (210) is provided with a tool hole (216) for a sheet pressing tool to extend into, the bent end with the perforation corresponds to the position of the tool hole (216), and the sheet pressing tool can push the bent end with the perforation downward to move the bottom end of the perforation away from the connecting piece.

6. The electric meter quick-change base according to claim 1, characterized in that: The wiring module (200) further comprises a crimping frame (260) and a threaded member (270), wherein the crimping frame (260) is located in a vertical sliding hole (2133) provided in the module body (210), and the threaded member (270) is arranged in a positioning hole (2135) provided at the bottom of the module body (210), and the threaded member (270) is screwed into a threaded hole (261) provided at the bottom of the crimping frame (260), and screwing the threaded member (270) can drive the crimping frame (260) to rise and fall; A connecting piece is fixed to the bottom end of the cylindrical connector (220), and the connecting piece is inserted into the crimping frame (260). The wire (500) can be clamped between the top of the crimping frame (260) and the connecting piece.

7. The electric meter quick-change base according to claim 1, characterized in that: The electric meter also includes an anti-finger insulating plate, the anti-finger insulating plate comprising an insulating plate (300), the insulating plate (300) being slidably mounted on the back plate (110), the insulating plate (300) having two positions when sliding up and down, in position A, the insulating plate (300) can completely cover the top of the columnar plug (220), and in position B, the columnar plug (220) can pass through a plug hole (310) provided on the insulating plate (300).

8. The electric meter quick-change base according to claim 7, characterized in that: The electric meter anti-finger insulation plate also includes: A clamp (340), two clamps (340) are arranged on both sides of the insulating plate (300), the clamp (340) is located in a secondary limiting groove (117) provided on the back plate (110), the clamp (340) is not higher than the front surface of the back plate (110), and a limiting hole (341) is provided on the clamp (340); The clamp (340) is configured such that, when the electric meter (400) and the insulating plate (300) move to position B, two protruding first assembly holes (430) on the back of the electric meter (400) are clamped in the limiting holes (341), and the clamp (340) and the insulating plate (300) can be driven to move upward by the protruding first assembly holes (430); When the clamp (340) moves to the top of the secondary limiting groove (117), the protruding first assembly hole (430) can be disengaged from the limiting hole (341), and the insulating plate (300) can be suspended at position A; A locking structure is provided between the insulating plate (300) and the back plate (110), and the insulating plate (300) can be suspended at position A through the locking structure, and the insulating plate (300) can be detached from the locking structure when the electric meter (400) is inserted.

9. The electric meter quick-change base according to claim 7, characterized in that: The electric meter finger-proof insulating plate further comprises a spring, wherein the spring is arranged between the insulating plate (300) and the base (100); when the electric meter is not installed, the insulating plate (300) is suspended at position A under the action of the spring thrust or tension; when the electric meter (400) is installed, the insulating plate (300) is pressed down to position B by the electric meter (400); after the electric meter (400) is removed, the insulating plate (300) is restored to position A under the action of the spring thrust or tension.

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