Single-phase multi-metering site non-metallic electric energy metering box and assembly line

Abstract

The application discloses a single-phase multi-epitope non-metal electric energy metering box and an assembling line, which comprises a box body, wherein the box body is composed of multiple modules; each module comprises a shell and a cover, the cover is made of transparent ABS material; the cover is separately mounted on the corresponding shell; the cover is connected with the shell through a movable hinge, the cover is separated from the shell to realize the separation of the convex edge and the groove, and the cover is rotated at the hinge to be opened after the separation; the modules are locked through the insertion of locking blocks into locking grooves, and the locking blocks are detachable; the electric energy metering box can flexibly expand space according to different numbers of electric meters; after damage at one place, the corresponding module can be replaced alone, and materials are saved; the cover is made of transparent material, the internal electric meter condition can be directly observed, reading is not needed by opening the cover, the cover is very convenient, frequent opening is avoided, a large amount of humid air is prevented from entering to cause a safety hidden danger, on the other hand, internal damage or dangerous conditions can be seen at the first time, and timely treatment measures are taken.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of single-phase multi-meter position non-metallic electric energy metering box assembly, and particularly relates to a single-phase multi-meter position non-metallic electric energy metering box and an assembly line. BACKGROUND

[0002] The electric energy metering box is a special box body used for centrally installing electric energy meters, circuit breakers and supporting equipment in the power system. The core function of the electric energy metering box is to safely, reliably and accurately accommodate and protect electric energy metering devices, ensure that the user's electricity consumption is fairly metered, provide a legal basis for electricity settlement, and simultaneously serve as a demarcation point for the property and responsibility of both power supply and power consumption, and is a key node device connecting the power grid and users in the power system, and is widely used in electricity consumption scenes such as residential areas and commercial buildings.

[0003] The current electric energy metering box is generally an integral box body structure, which is usually made of metal (such as steel plate or stainless steel) or engineering plastic, and provides physical protection, dust prevention, moisture prevention, small animal prevention and other functions. During assembly, it is also a single whole box body assembly, such as the electric energy meter automatic box assembly device disclosed in the patent application with the publication number CN117087933B. The electric energy metering box and assembly of this structure have the following defects:

[0004] 1. The integral box body structure cannot be adjusted in size, cannot flexibly expand space according to different numbers of electric meters, and cannot realize modular assembly; 2. The integral box body structure needs to be replaced as a whole after damage at one place, which wastes materials; 3. The box body is made of non-transparent material, although some have small observation windows, but it is not conducive to directly observing the overall situation inside from the outside, and internal damage or dangerous situations cannot be seen and handled in the first time; 4. Opening the sealed door of the shell will expose all the space inside the box body to the air, especially in humid areas, which is not conducive to maintaining the dry environment inside the whole; 5. The existing box body needs to be frequently opened when reading the meter, which leads to insufficient sealing of the box door and is prone to water ingress in rainy weather. SUMMARY

[0005] The application provides a single-phase multi-meter position non-metallic electric energy metering box and an assembly line. The electric energy metering box can flexibly expand space according to different numbers of electric meters; after damage at one place, the corresponding module can be replaced alone, saving materials; the cover body is made of transparent material, the electric meter situation inside can be directly observed, without the need to open the cover to read, which is very convenient, and also avoids the safety hazards caused by the entry of a large amount of humid air due to frequent opening, and on the other hand, internal damage or dangerous situations can also be seen in the first time, so that timely handling measures can be taken to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a single-phase multi-meter position non-metallic electric energy metering box, comprising a box body, the box body is composed of a plurality of modules;

[0007] Each module comprises a shell, a hole is formed in the shell in advance for the user's electric meter, sub-house circuit breaker, plastic shell circuit breaker line to pass through, for the corresponding line connection arrangement, and a sealing sleeve is installed at the hole for waterproof and moisture-proof sealing;

[0008] The shell is a cuboid in specific shape, and the front end is designed as an open end, mounting holes are arranged on the edges of the shell for mounting external screws to fix the box as a whole;

[0009] Each module comprises a cover body corresponding to each shell, i.e., for sealing at the front end of the corresponding shell, the cover body is made of transparent ABS material;

[0010] The cover body is separately installed on the corresponding shell, and the sealing of other parts is not affected when the corresponding cover body is opened.

[0011] Preferably, the cover body is connected to the shell through a movable hinge, and the shell is integrally formed with a connecting piece; the connecting piece is provided with a guide groove in the front-rear direction and is provided with a first hinge piece, and the first hinge piece is provided with a guide rail in the guide groove;

[0012] The second hinge piece is arranged on the edge of the cover body close to the first hinge piece, and the second hinge piece is directly injection molded with the cover body, and the first hinge piece is hinged with the second hinge piece; the front end of the connecting piece is also provided with a limiting structure, and the limiting structure comprises a cover plate fixed to the front end of the connecting piece, and the cover plate is fixedly connected with the connecting piece through screws;

[0013] A convex edge is arranged on the cover body, and after the cover body moves backward, the convex edge on the cover body is clamped into the groove on the shell to realize sealing clamping, the convex edge is separated from the groove by moving the cover body away from the shell, and the cover body is rotated after separation to realize opening.

[0014] Preferably, the cover body is integrally formed with a handle part, and specifically, the transparent cover body is formed with a protrusion at the front end, the protrusion is provided with a mouth, and a slot is arranged for fingers to extend into.

[0015] Preferably, the module is provided with a limiting mechanism for preventing the cover body from moving forward and backward relative to the shell, and the limiting mechanism comprises a first locking piece and a second locking piece, the first locking piece and the second locking piece are separable, and the first locking piece on the cover body can cooperate with the second locking piece to realize locking after the cover body is closed.

[0016] Preferably, the first locking piece is movably installed on the cover body and can only rotate, and the top end of the first locking piece is fixed with a knob;

[0017] The rod part of the first locking piece is located at the back side of the cover body and is provided with a bent part for cooperating with a baffle integrally formed in the shell to realize sufficient positioning of the cover body by the locking piece;

[0018] A locking member is arranged on the cover body, and the locking member is located on the opposite side of the second hinge member and the first hinge member.

[0019] Preferably, a tapered groove is arranged on the rear side of the baffle, a positioning groove is arranged on the front side of the bent part, a positioning spring and a shaft member are arranged in the positioning groove, the top end of the shaft member is a tapered head, the end of the positioning spring is fixedly welded on the bottom of the positioning groove, the other end of the positioning spring is fixedly welded with the shaft member, the tapered head of the shaft member is partially exposed in the natural state of the positioning spring, and the tapered head is just partially clamped in the tapered groove when the bent part is in a horizontal state.

[0020] Preferably, the modules are locked by a second locking mechanism, the second locking mechanism comprises locking grooves arranged between adjacent modules, the locking grooves between two adjacent modules are close to each other, each locking groove penetrates the side of the module, and the opening of the locking groove gradually narrows;

[0021] A locking block is inserted into the locking groove, the locking block has a narrow structure in the middle which is adapted to the two locking grooves, and the locking block can limit the two side modules after being inserted into the two close locking grooves;

[0022] The two side surfaces of the locking block are further provided with positioning shaft members, the positioning shaft members can be extended and retracted along the axis, specifically, an axis groove is arranged on the positioning shaft member, and two positioning shaft members are arranged in the axis groove, and a compression spring is arranged between the two positioning shaft members;

[0023] The module is further provided with a clamping groove corresponding to the head end of the positioning shaft member in the locking groove, so that after the positioning shaft member is installed in place, the positioning shaft member is reset by the spring in the middle, and then the head end of the positioning shaft member is squeezed into the corresponding clamping groove to realize the locking of the locking block relative to the two side modules.

[0024] Preferably, an unlocking mechanism is further arranged on the locking block, specifically, a limiting groove is arranged on the locking block along the axis groove, the positioning shaft member is integrally provided with a triangular plate located in the limiting groove, the inclined surface of the triangular plate faces outward, and the outer end of the locking block is provided with two through grooves corresponding to the triangular plate.

[0025] An assembly line for a single-phase multi-table-position non-metallic electric energy metering box, characterized by comprising a conveying table for conveying each module of the electric energy metering box, and conveying each module to each assembly station;

[0026] A shell module assembly station is arranged to insert the locking block into the corresponding locking groove to lock each module;

[0027] An internal part installation station is arranged to install the electric meter installation module, the household circuit breaker installation module and the molded case circuit breaker installation module on the assembled shell;

[0028] A cover body assembly station is arranged to install the locking member on the cover body through the second connecting member to hingedly connect the first hinge member;

[0029] Cover and shell assembly station, the first hinge of the cover connected is inserted into the connecting piece of the corresponding shell, and the top end of the connecting piece is installed with a cover plate.

[0030] Compared with the prior art, the beneficial effects of the present application are:

[0031] 1. The overall box structure can be adjusted in size, and the space can be flexibly expanded according to different number of electric meters.

[0032] 2. After damage in one place, the corresponding module can be replaced alone, without the need for entire replacement, saving materials.

[0033] 3. The cover is made of transparent material, so that the internal electric meter situation can be directly observed without opening the cover to read, which is very convenient, and also avoids the safety hidden danger caused by frequent opening and the entry of a large amount of humid air, on the other hand, internal damage or dangerous situation can be seen at the first time, and timely treatment measures can be taken.

[0034] 4. The cover is separately mounted on the corresponding shell, which is used to open the corresponding cover without affecting the sealing of other parts. Compared with the traditional shell, opening the sealing door will expose all the space in the box to the air, especially during the rainy period, which is not conducive to maintaining the dry environment inside.

[0035] 5. The cover and shell of each module can be conveniently assembled, and after assembly, the convex edge moves to the bottom to realize full sealing, and when opening, the convex edge needs to move forward by a distance before it can be separated from the groove, and then the cover can be rotated through the hinge to realize opening, realizing convenient opening and stable sealing.

[0036] 6. The locking mechanism of the cover and shell of each module can be separated, without interfering with the locking and opening of the cover and shell, and the locking mechanism is stable.

[0037] 7. The modules of the box can be locked through the locking mechanism, and can be conveniently unlocked, which is convenient for assembly and stable and durable after assembly.

[0038] 8. The modules of the box can be conveniently assembled, which is convenient for flow assembly line processing and has high efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a front view structure schematic diagram of the shell of the present application;

[0040] Figure 2 is a front view structure schematic diagram of the shell of the present application;

[0041] Figure 3 is a module cover structure schematic diagram of the present application;

[0042] Figure 4 is Figure 3 an enlarged structure schematic diagram of A of the present application;

[0043] Figure 5 Fig. 4 is a top view of the cover plate and the first hinge member of the present application;

[0044] Figure 6 Fig. 5 is a bottom view of the module cover of the present application;

[0045] Figure 7 Fig. 6 is a schematic view of the connection structure of the first locking member and the second locking member of the present application;

[0046] Figure 8 Fig. 7 is a schematic view of the connection structure of the shell of the present application;

[0047] Figure 9 Fig. 8 is an enlarged view of B of Fig. 7; Figure 8

[0048] Figure 10 Fig. 9 is a top view of the present application;

[0049] Figure 11 Fig. 10 is a side view of the present application;

[0050] Figure 12 Fig. 11 is a schematic view of the assembly line frame of the present application.

[0051] In the drawings: 1, box; 101, module; 1011, shell; 1012, cover; 1013, convex edge; 1014, locking groove; 1015, locking block; 1016, positioning shaft member; 1017, shaft groove; 102, limiting groove; 103, triangular plate; 104, through groove; 2, mounting hole; 3, connecting member; 301, guide rail groove; 302, first hinge member; 3021, guide rail; 303, second hinge member; 304, cover plate; 4, handle part; 5, first locking member; 501, knob; 502, bent part; 5021, positioning groove; 503, baffle; 5031, tapered groove; 6, second locking member; 7, positioning spring; 8, shaft member. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0053] Embodiment 1, please refer to Figures 1-2 ​The application provides a single-phase multi-meter position non-metal electric energy metering box, which comprises a box body 1, the box body 1 is composed of a plurality of modules 101, and the number of the specific modules 101 is designed according to an actual electric energy metering box, for example, the electric energy metering box selected in the present application is a single-phase multi-meter position electric energy metering box, which comprises seven modules, namely four electric meter installation modules, two household circuit breaker installation modules and one molded case circuit breaker installation module.

[0054] The electric meter installation module is used for installing a user electric meter, the household circuit breaker installation module is used for installing a household circuit breaker, and the molded case circuit breaker installation module is used for installing a molded case circuit breaker and a wiring terminal.

[0055] Each module 101 comprises a shell 1011, the shell 1011 is made of the same material and process, preferably PC material, the PC material has good mechanical strength, impact resistance, environmental stability and flame retardance, the shell 1011 is provided with holes in advance for the lines of the user electric meter, the household circuit breaker and the molded case circuit breaker to penetrate, is used for connecting and arranging the corresponding lines, and a sealing wire sleeve is installed at the holes and is used for waterproof and moisture-proof sealing.

[0056] Specifically, the shell 1011 has a specific shape of a cuboid, and the front end is designed as an open end, the cuboid is beneficial to the close fitting of the outer walls when the modules are assembled, and the shell 1011 is provided with mounting holes 2 at the edges and is used for mounting external screws to fix the box body as a whole, and a rainproof ventilation grille can be provided on the side of the shell 1011 to keep ventilation under the premise of rainproof, and of course, other rainproof ventilation structures on the market can be equally replaced.

[0057] Each module 101 comprises a cover body 1012 corresponding to each shell 1011, that is, used for sealing the front end of the corresponding shell 1011, the cover body 1012 is made of transparent ABS material, PC and ABS are excellent electrical insulators, which are crucial for the shell of the electric energy metering device, can effectively prevent current leakage and short circuit, guarantee the safety of the operating personnel and the normal operation of the device, and avoid the risk of electric shock. In addition, PC and ABS can be easily processed into complex shapes by the injection molding process, which makes it possible to design a shell with exquisite structure, good sealing property, convenient installation and easy opening and closing, high production efficiency and suitability for mass production.

[0058] The transparent cover body 1012 can directly observe the condition of the electric meter inside, without the need to open the cover to read, which is very convenient, and can also avoid the safety hazards caused by the frequent opening of the cover to make damp air enter, on the other hand, the internal damage or danger can also be seen at the first time, and timely treatment measures can be taken.

[0059] The cover 1012 is individually mounted on the corresponding shell 1011, and is used to open the corresponding cover 1012 without affecting the sealing of other parts. Compared with the traditional shell, opening the sealing door will expose all the space in the box to the air, which is not conducive to maintaining a dry environment, especially in humid southern areas.

[0060] Please refer to Figures 3-6 The cover 1012 is connected to the shell 1011 by moving the hinge. Specifically, the shell 1011 is integrally formed with a connecting piece 3, which can be made of wear-resistant alloy and is directly injection molded on the edge of the shell 1011, so that the connection is stable. The part of the connecting piece 3 inside the shell 1011 is wider than the exposed part, which improves the connection strength and anti-pulling ability. Of course, this is not a limitation of the present application, and the corresponding connection methods such as screw fixation can also be equivalent to replace;

[0061] The connecting piece 3 is provided with a guide groove 301 in the front and rear directions, and is provided with a first hinge piece 302. The first hinge piece 302 is provided with a guide rail 3021 located in the guide groove, and the guide rail 3021 is matched with the guide groove 301, so that the first hinge piece 302 can only slide forward and backward relative to the connecting piece 3;

[0062] The cover 1012 is provided with a second hinge piece 303 near the edge of the first hinge piece 302. The second hinge piece 303 is directly injection molded and connected with the cover 1012. The first hinge piece 302 is hinged with the second hinge piece 303, so that the cover 1012 can rotate relative to the first hinge piece 302, and the cover 1012 can move forward and backward along the connecting piece 3;

[0063] The front end of the connecting piece 3 is also provided with a limiting structure. The limiting structure prevents the first hinge piece 302 from falling off the connecting piece 3. The limiting structure includes a cover plate 304 fixed at the front end of the connecting piece 3. The cover plate 304 is fixedly connected with the connecting piece 3 by screws. Through the detachable cover plate 304, the first hinge piece 302 can enter the connecting piece 3 when it is not installed, and the front end of the guide groove is blocked after installation, so that the guide rail 3021 of the first hinge piece 302 cannot be separated;

[0064] After the cover 1012 is laid flat, the sealing engagement of the cover 1012 with the shell 1011 is achieved by moving backward, and the engagement mode is preferably a mortise and tenon structure, that is, one of the cover 1012 and the shell 1011 is provided with a convex edge 1013, and the other is provided with a groove corresponding to the convex edge 1013. For example, the convex edge 1013 is provided on the cover 1012, and after the cover 1012 moves backward, the sealing engagement can be achieved by clamping the convex edge 1013 on the cover 1012 into the groove on the shell 1011. The thickness of the convex edge 1013 is greater than the depth of the groove, and the convex edge 1013 has a space for further movement after entering the groove. After moving backward to the bottom, the sealing is achieved. Therefore, the convex edge 1013 needs to move forward by one end distance before it can be separated from the groove. By moving the cover 1012 away from the shell 1011, the convex edge 1013 can be separated from the groove, and after being separated, the cover 1012 can be rotated to achieve opening through the hinge.

[0065] Please refer to Figure 3 The handle part 4 is integrally formed on the cover 1012. Specifically, the transparent cover 1012 is formed with a protrusion at the front end, the protrusion is provided with a mouth, and a slot for inserting a finger is provided. By inserting the finger into the slot, the cover 1012 can be easily controlled.

[0066] Please refer to Figures 2-3 The limiting mechanism is provided on the module 101, and is used to prevent the forward and backward movement of the cover 1012 relative to the shell 1011. First, the limiting mechanism includes a first locking member 5 and a second locking member 6, and the first locking member 5 and the second locking member 6 can be separated. The purpose is not to interfere with the separation of the cover 1012 relative to the shell 1011.

[0067] At the same time, after the cover 1012 is closed, the first locking member 5 on the cover 1012 can cooperate with the second locking member 6 to achieve locking, thereby limiting the opening of the cover 1012.

[0068] Please refer to Figure 7 The locking structure includes a first locking member 5 rotatably installed on the cover 1012. The first locking member 5 is movably installed on the cover 1012 and can only perform a rotating action. Specifically, the top end of the first locking member 5 penetrates through a rotating hole provided on the cover 1012 and is fixed with a knob 501 at the top end. The connection mode of the knob 501 includes welding, clamping, threaded connection and other modes. A stop ring is provided on the rod of the first locking member 5 and is located on the rear side of the cover 1012 and abuts against it. The first locking member 5 is limited to only perform a rotating action by the knob 501 on the front side of the cover 1012 and the stop ring on the rear side;

[0069] The first locking member 5 rod part is located at the rear side of the cover body and is provided with a bending part 502, which is used to cooperate with a baffle 503 integrally formed in the shell 1011. Specifically, after the cover body 1012 covers the shell 1011, the bending part 502 is initially in a vertical state, so that the bending part 502 does not interfere with the baffle 503 in the shell 1011 during forward and backward movement;

[0070] Then, after the bending part 502 passes the side of the baffle 503, the bending part 502 is rotated counterclockwise to become a horizontal state, so that the bending part 502 can be clamped at the rear side of the baffle 503 to achieve positioning, that is, the cover body 1012 is fully attached to the shell 1011 and cannot move forward and backward, so as to achieve full positioning of the cover body 1012 by the locking member.

[0071] Further, it is preferred that one locking member is arranged on the cover body 1012, and the position of the locking member is located on the opposite side of the second hinge member 303 and the first hinge member 302. Since one side of the cover body is hinged to the connecting member 3 through the second hinge member 303 and the first hinge member 302, the cover body 1012 as a whole can only move forward and backward as a whole under the action of the hinge, so that the positioning of the other side bending part 502 is combined to achieve optimal material saving while achieving stable positioning as a whole.

[0072] Please refer to Figure 7 The rear side of the baffle 503 is provided with a tapered groove 5031, and the front side of the bending part 502 is provided with a positioning groove 5021, which is provided with a positioning spring 7 and a shaft member 8. The top end of the shaft member 8 is a tapered head, the end of the positioning spring 7 is fixedly welded at the bottom of the positioning groove 5021, the other end of the positioning spring 7 is fixedly welded with the shaft member 8, and the tapered head of the shaft member 8 is partially exposed under the natural state of the positioning spring 7. When the bending part 502 is in a horizontal state, the tapered head is just partially clamped in the tapered groove 5031, so that the bending part 502 does not rotate during locking, thereby enhancing the stability of the locking. When it needs to be opened, the knob 501 is rotated clockwise by force, so that the tapered head is further extruded to the positioning spring 7 to shrink into the positioning groove 5021 through the extrusion of the tapered groove 5031, thereby achieving disengagement until the locking member is opened. When it needs to be locked, the knob 501 is rotated counterclockwise, and the tapered head is partially exposed due to the initial state, so that it is automatically retracted to the rear side of the baffle during rotation through the extrusion of the tapered surface, until the bending part 502 is rotated to a horizontal state, and the tapered head is partially clamped in the tapered groove 5031 through the rebounding action of the positioning spring 7, thereby achieving positioning.

[0073] Please refer to Figures 8-9, each module 101 is locked by a second locking mechanism, the second locking mechanism comprises a locking slot 1014 arranged between adjacent modules 101, the locking slots 1014 between two adjacent modules 101 are in close contact, each locking slot 1014 penetrates the side of the module 101, and the opening of the locking slot 1014 is gradually narrowed, that is, the size of the opening is smaller than the size of the internal space, so that the locking slot 1014 forms a slot with a narrow middle and wide sides in cross section after the two modules 101 are attached;

[0074] A locking block 1015 is inserted into the locking slot 1014, the locking block 1015 has a structure with a narrow middle adapted to the two locking slots 1014, so that the locking block 1015 can limit the two modules 101 after being inserted into the two closely contacted locking slots 1014, that is, the two modules 101 cannot be separated left and right;

[0075] The locking slot 1014 only penetrates the rear end of the housing 1011, so that the locking block 1015 is inserted from the rear end, and the front end is not exposed;

[0076] Further, to achieve locking, the two side surfaces of the locking block 1015 are further provided with a positioning shaft 1016, the positioning shaft 1016 can be extended and retracted along the axis, specifically, an axial slot 1017 is arranged in the positioning shaft 1016, and two positioning shafts 1016 are arranged in the axial slot 1017, and a compression spring 1018 is arranged between the two positioning shafts 1016, so that the two positioning shafts 1016 are exposed outside the axial slot 1017 under the action of the compression spring 1018 in the middle, and the positioning shafts 1016 are compressed into the axial slot 1017 during installation, and then the positioning shafts 1016 are installed;

[0077] The module 101 further comprises a clamping slot corresponding to the head end of the positioning shaft 1016 in the locking slot 1014, so that after the positioning shaft 1016 is installed in place, the positioning shaft 1016 is reset by the spring in the middle, and then the head end of the positioning shaft 1016 is pressed into the corresponding clamping slot, that is, the locking block 1015 is locked relative to the two modules 101, so that the two modules 101 are completely locked; the stable connection between the modules 101 is achieved, and the modules 101 are closely attached.

[0078] Please refer to Figures 10-11Further, in order to realize the subsequent need to replace the module 101 and disassemble and maintain, correspondingly, the unlocking mechanism is also arranged on the locking block 1015, specifically, the locking block 1015 is provided with a limiting groove 102 along the shaft groove 1017, the positioning shaft 1016 is integrally provided with a triangular plate 103 located in the limiting groove, the inclined surface of the triangular plate 103 is outward, the locking block 1015 is provided with two through grooves 104 corresponding to the triangular plate 103, so that the inclined surface of the triangular plate 103 can be correspondingly extruded by externally inserting a strip-shaped rod, and the two positioning shafts 1016 are further extruded back to the shaft groove 1017, so that the positioning shaft 1016 and the clamping groove are separated, and the disassembly of the locking block 1015 is further realized, thereby completing the disassembly of the module 101; specifically, the sealing plug can be selected and installed on the through groove 104, the sealing plug is screw-installed, and when disassembly is required, the sealing plug is opened.

[0079] Please refer to Figure 12 The application provides an assembly line for a single-phase multi-table non-metal electric energy metering box, which comprises a conveying table 9, the conveying table 9 is arranged according to the product station condition and is provided with conveying rollers, and is specifically used for conveying each module 101 of the electric energy metering box and conveying each module 101 to each assembly station.

[0080] The shell module assembly station 10 is used for inserting the locking block 1015 into the corresponding locking groove 1014 after each module 101 is conveyed to the station in an upside-down manner, extruding the two positioning shafts 1016 before insertion, and clamping the positioning shaft 1016 in the clamping groove through the compression spring 1018 after positioning, so as to realize the locking of each module 101.

[0081] The internal part installation station 11 is used for installing four electric meter installation modules, two household circuit breakers installation modules and one molded case circuit breaker installation module on the assembled shell.

[0082] The cover assembly station 12 is used for hingedly installing the first hinge 302 on the cover 1012 through the second connecting piece 303; the locking piece is installed on the cover 1012, the top end of the first locking piece 5 penetrates through the rotating hole arranged on the cover 1012, and then the top end is fixed with the knob 501; the connection mode of the knob 501 is selected to be welding, and the first locking piece 5 is rotated through the knob 501 on the front side of the cover and the stop ring on the back side for limiting;

[0083] The cover and shell assembly station 13 is used for inserting the first hinge 302 connected with the cover 1012 into the connecting piece 3 of the shell 1011, and the guide rail 3021 is matched and matched with the guide rail groove 301, so that the first hinge 302 can only slide forward and backward relative to the connecting piece 3; then the cover plate 304 is installed on the top end of the connecting piece 3; and then the subsequent processes such as testing and inspection are carried out after assembly is completed.

[0084] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A single-phase multi-position non-metallic energy metering box, characterized in that, Includes a housing (1), which is composed of multiple modules (101); Each module (101) includes a housing (1011), and the housing (1011) has holes pre-drilled inside for the passage of user electricity meters, branch circuit breakers and molded case circuit breakers for corresponding line connection arrangements, and sealing sleeves are installed at the holes for waterproof and moisture-proof sealing. The shell (1011) is specifically rectangular in shape and has an open front end. Mounting holes (2) are provided on the edge of the shell (1011) for installing external screws to fix the shell as a whole. Each module (101) includes a cover (1012), which corresponds to each housing (1011) and is used for sealing the front end of the corresponding housing (1011). The cover (1012) is made of transparent ABS material. The cover (1012) is separately mounted on the corresponding housing (1011) so that opening the corresponding cover (1012) does not affect the sealing of other parts; The cover (1012) is connected to the shell (1011) by a movable hinge. Specifically, the shell (1011) is integrally formed with a connector (3); the connector (3) is provided with a guide rail groove (301) in the front-back direction and is equipped with a first hinge (302). The first hinge (302) is provided with a guide rail (3021) located in the guide rail groove. The cover (1012) has a second hinge (303) at the edge near the first hinge (302). The second hinge (303) is directly injection molded to the cover (1012), and the first hinge (302) is hinged to the second hinge (303). The front end of the connector (3) is also provided with a limiting structure, which includes a cover plate (304) fixed to the front end of the connector (3). The cover plate (304) and the connector (3) are fixedly connected by screws. The cover (1012) is provided with a protruding edge (1013). After the cover (1012) moves backward, the protruding edge (1013) on it is engaged in the groove on the housing (1011) to achieve a sealing engagement. The protruding edge (1013) is disengaged from the groove as the cover (1012) moves away from the housing (1011). After disengagement, the cover (1012) is opened by rotating at the hinge.

2. The single-phase multi-position non-metallic energy metering box according to claim 1, characterized in that, The cover (1012) has a handle (4) integrally formed on it. Specifically, the transparent cover (1012) has a protrusion formed at the front end. The protrusion has an opening and a groove for inserting fingers.

3. A single-phase multi-position non-metallic energy metering box according to claim 1, characterized in that, The module (101) is equipped with a limiting mechanism to prevent the cover (1012) from moving back and forth relative to the shell (1011). The limiting mechanism includes a first locking member (5) and a second locking member (6). The first locking member (5) and the second locking member (6) are separable. After the cover (1012) is closed, the first locking member (5) on the cover (1012) can cooperate with the second locking member (6) to achieve locking.

4. A single-phase multi-position non-metallic energy metering box according to claim 3, characterized in that, The first locking element (5) is movably mounted on the cover (1012) and can only rotate. A knob (501) is fixed at the top of the first locking element (5). The first locking member (5) has a rod located on the rear side of the cover and is provided with a bent part (502). The bent part (502) is used to cooperate with the baffle (503) integrally formed in the housing (1011) to achieve full positioning of the locking member on the cover (1012); A locking element is provided on a cover (1012), and the locking element is located on the opposite side of the second hinge (303) and the first hinge (302).

5. A single-phase multi-position non-metallic energy metering box according to claim 4, characterized in that, A conical groove (5031) is provided on the rear side of the baffle (503), and a positioning groove (5021) is provided on the front side of the bent part (502). The positioning groove (5021) contains a positioning spring (7) and a shaft (8). The top of the shaft (8) is a conical head. The end of the positioning spring (7) is fixedly welded to the bottom of the positioning groove (5021). The other end of the positioning spring (7) is welded to the shaft (8). The conical head of the shaft (8) is partially exposed when the positioning spring (7) is in its natural state. When the bent part (502) is in a horizontal state, the conical head is just partially stuck in the conical groove (5031).

6. A single-phase multi-position non-metallic energy metering box according to claim 1, characterized in that, Each module (101) is locked together by a second locking mechanism. The second locking mechanism includes a locking groove (1014) opened between adjacent modules (101). The locking grooves (1014) between two adjacent modules (101) are close together. Each locking groove (1014) passes through the side of the module (101) and gradually narrows. A locking block (1015) is inserted into the locking slot (1014). The locking block (1015) has a narrow structure that adapts to the two locking slots (1014). After the locking block (1015) is inserted into the two closely spaced locking slots (1014), it will limit the movement of the modules (101) on both sides. The locking block (1015) is also provided with positioning shafts (1016) on both sides. The positioning shafts (1016) can extend and retract along the axis. Specifically, a through shaft groove (1017) is opened at the positioning shaft (1016), and two positioning shafts (1016) are placed in the shaft groove (1017). A compression spring (1018) is provided between the two positioning shafts (1016). The module (101) also has a slot in the locking groove (1014) corresponding to the head end of the positioning shaft (1016). After the positioning shaft (1016) is installed in place, the positioning shaft (1016) is reset by the spring in the middle, and then squeezes the positioning shafts (1016) on both sides to realize that the head end enters the corresponding slot, thereby locking the locking block (1015) relative to the modules (101) on both sides.

7. A single-phase multi-position non-metallic energy metering box according to claim 6, characterized in that, An unlocking mechanism is also provided on the locking block (1015). Specifically, the locking block (1015) has a limiting groove (102) along the shaft groove (1017). The positioning shaft (1016) is integrally provided with a triangular plate (103) located in the limiting groove. The triangular plate (103) has an outward inclined surface. Two through grooves (104) corresponding to the triangular plate (103) are provided at the outer end of the locking block (1015).

8. An assembly line for the single-phase multi-position non-metallic energy metering box of claim 7, characterized in that, Includes a conveyor (9) for conveying the modules (101) of the power metering box to each assembly station; At the housing module assembly station (10), locking blocks (1015) are inserted into the corresponding locking slots (1014) to lock each module (101); The internal parts installation station (11) is used to install the meter installation module, the household circuit breaker installation module, and the molded case circuit breaker installation module on the assembled housing. At the cover assembly station (12), the cover (1012) is hinged to the first hinge (302) via the second hinge (303), and a locking element is installed on the cover (1012); At the assembly station (13) of the cover and the shell, the first hinge (302) connecting the cover (1012) is inserted into the connector (3) of the corresponding shell (1011), and the top of the connector (3) is fitted with a cover plate (304).

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