Modular electric energy metering box

Abstract

The application discloses a modular electric energy metering box and belongs to the technical field of electric energy metering boxes. The electric energy metering box comprises a metering box body, wherein the metering box body is internally provided with a mounting vertical plate; the electric energy metering box further comprises a strip-shaped support, a horizontal strip-shaped rack, a positioning assembly, a clamping support and an electric element; a plurality of strip-shaped supports are equidistantly and parallelly arranged on the mounting vertical plate; a positioning protruding strip is arranged on one side of the horizontal strip-shaped rack close to the mounting vertical plate; the positioning assembly is arranged on the horizontal strip-shaped rack; a plurality of clamping supports are arranged on the horizontal strip-shaped rack at intervals; the clamping assembly is arranged on each clamping support; the electric element is arranged on each clamping support; and the electric element is connected with the corresponding clamping support through the flexible mounting assembly, so as to solve the technical problems that the horizontal strip position in the existing electric energy metering box is difficult to flexibly adjust, the connection between the metering module and the horizontal strip through screws one by one leads to time-consuming and labor-consuming dismounting and mounting, and the installation efficiency and the convenience of subsequent replacement or maintenance of the metering module are affected.

Description

Technical Field

[0001] This invention belongs to the technical field of electricity metering boxes, specifically relating to modular electricity metering boxes. Background Technology

[0002] Electricity metering boxes are indispensable and important equipment in power systems. They can monitor parameters such as current, voltage, and power of electrical equipment in real time and convert this data into electricity consumption. Through electricity metering boxes, users can clearly understand their electricity consumption, facilitating accurate metering and monitoring of electricity. With the continuous development of society and the increasing demand for electricity, electricity metering boxes are playing an increasingly important role in power management, energy conservation and emission reduction, and electricity market transactions. According to their purpose, electricity metering boxes can be divided into indoor and outdoor types.

[0003] In order to enable the electricity metering box to be freely and adaptably configured, and to facilitate the positioning of internal cables, especially to allow outdoor electricity metering boxes to add or remove metering modules as needed to meet various metering requirements, a modular design of the electricity metering box is required.

[0004] Currently, metering modules are generally installed on horizontal bars. Existing horizontal bars are often in fixed positions and difficult to adjust flexibly. At the same time, individual metering modules are usually connected to the horizontal bars one by one with screws. This process is relatively laborious, and if not operated properly after long-term use, it can easily cause corrosion and make disassembly difficult. Summary of the Invention

[0005] The purpose of this invention is to provide a modular energy metering box to solve the technical problems in existing energy metering boxes where the position of the horizontal bars is difficult to adjust flexibly, and the metering modules are connected to the horizontal bars one by one with screws, resulting in time-consuming and laborious assembly and disassembly, which affects the installation efficiency and the convenience of subsequent replacement or maintenance of the metering modules.

[0006] To achieve the above objectives, embodiments of the present invention provide a modular energy metering box, including a metering box body, wherein an mounting plate is provided inside the metering box body, and further comprising: A strip bracket is provided, wherein a plurality of strip brackets are arranged parallel to each other at equal intervals on the mounting plate, and a hanging horizontal groove is provided on the upper side of the strip bracket and a positioning horizontal groove is provided on the lower side of the strip bracket. A horizontal bar frame is provided with a positioning protrusion on the side of the horizontal bar frame near the mounting plate. The positioning protrusion is adapted to the hanging horizontal groove. An assembly horizontal groove is provided on the side of the horizontal bar frame away from the mounting plate. A positioning assembly component is provided on the horizontal bar frame to fix the relative position of the horizontal bar frame and the corresponding bar support. The clamping brackets are arranged at intervals on the horizontal bar frame, and each clamping bracket is provided with a clamping component for fixing the relative position of the clamping bracket and the horizontal bar frame. An electrical component is provided on each of the clamping brackets, and the electrical component is connected to the corresponding clamping bracket through a flexible mounting assembly.

[0007] To fix the relative position between the horizontal frame and the strip support, the positioning assembly includes: A cam is rotatably mounted on the side of the horizontal frame near the mounting plate, and the cam is adapted to the positioning horizontal groove; A hand grip is rotatably mounted on the side of the horizontal frame away from the mounting plate, and the hand grip is fixedly connected to the cam.

[0008] To arrange electrical components on the horizontal frame, the clamping assembly includes: Each of the clamping brackets is provided with a snap-fit ​​protrusion on the side near the horizontal bar frame. The snap-fit ​​protrusion is arranged at an angle and is adapted to the assembly horizontal groove. A contacting mechanism is provided on each of the clamping brackets to fix the relative position of the clamping bracket and the crossbar frame.

[0009] Furthermore, the contact mechanism includes: A sliding bracket is slidably mounted on each of the clamping brackets; Anti-slip pads are provided on the top of each of the sliding brackets, and the top of the anti-slip pads abuts against the bottom of the crossbar frame.

[0010] The system also includes an adjustment screw, with the adjustment screw rotatably mounted on the bottom of each sliding bracket. Each adjustment screw is threaded with an adjustment nut, which is fixedly connected to the corresponding clamping bracket.

[0011] To secure the relative position between the electrical components and the clamping bracket, the flexible mounting assembly includes: Each of the electrical components is provided with a backing plate on the side near the clamping bracket; An assembly bracket is provided on each of the electrical components, and the assembly bracket is fixedly connected to the back plate; The mounting frame is fixedly installed on each of the clamping brackets, and the mounting frame slides in cooperation with the backing plate and the assembly bracket. A flexible support mechanism is provided on each of the mounting frames to support the assembly bracket; A plug-in fixing mechanism is provided on each of the mounting frames to fix the relative position of the assembly bracket and the mounting frame.

[0012] To support the assembly bracket, the flexible support mechanism includes: Each of the mounting frames has two symmetrically formed sliding cavities inside; A support frame is slidably installed inside each of the sliding cavities; The abutting member is provided on each of the support frames, and the abutting member abuts against the bottom of the assembly bracket.

[0013] Each of the sliding cavities is fixedly installed with a spring, and the spring is fixedly connected to the support frame.

[0014] Furthermore, the abutting component includes an arc-shaped abutting block, and each of the support frames is equipped with an arc-shaped abutting block. An arc-shaped groove is opened at the bottom of the assembly bracket at a position corresponding to the support frame, and the arc-shaped groove is adapted to the arc-shaped abutting block.

[0015] To automatically lock the relative positions of the assembly bracket and the mounting frame, the insertion and fixing mechanism includes: Ratchets are symmetrically arranged on each of the assembly brackets; Positioning ratchet teeth are symmetrically arranged on each of the mounting frames. The positioning ratchet teeth are adapted to the ratchet rack. A push plate is fixedly arranged on the side of each positioning ratchet tooth away from the ratchet rack.

[0016] The significant technical effects of the embodiments of the present invention are as follows: 1. The modular energy metering box provided in this embodiment of the invention utilizes the cooperation of the hanging slots on the strip brackets and the positioning protrusions on the horizontal frame. During installation, the operator places the positioning protrusions into the hanging slots, and the horizontal frame is then hung on the strip brackets by its own weight. The handgrip is then rotated to engage the cam in the positioning slot, completing the locking and fixing process. The entire process requires no screws or tools, significantly saving installation and debugging time. Simultaneously, multiple strip brackets are arranged parallel and equidistantly on the mounting plate. Operators can flexibly select strip brackets of different heights for installation based on the actual height and quantity of electrical components, facilitating adjustments to the internal space layout of the metering box.

[0017] 2. The modular energy metering box provided in this embodiment of the invention, through the cooperation of the snap-fit ​​protrusion and the assembly horizontal groove, can not only restrict the displacement of the clamping bracket in the vertical and horizontal directions, but also allow it to slide freely in the assembly horizontal groove. This makes it easy to flexibly adjust the installation position and number of clamping brackets on a horizontal frame according to the specifications and quantity of electrical components. When it is necessary to rearrange or replace a single clamping bracket in the future, it is easy to disassemble and assemble the clamping bracket with the horizontal frame, which facilitates the adjustment of the layout inside the metering box.

[0018] 3. The modular power metering box provided in this embodiment of the invention, through the setting of flexible installation components, allows the restoring force generated after the spring is compressed during the assembly process to be transmitted to the assembly bracket through the arc-shaped abutment block. This not only plays a buffering and protective role, preventing damage to electrical components from installation impacts, but also achieves automatic centering through the self-guiding effect of the arc-shaped surface. When the electrical component moves down to the predetermined position, the ratchet racks on both sides of the assembly bracket and the positioning ratchet on the mounting frame form a one-way ratchet lock, achieving automatic locking. When disassembly is required, pressing the push plate on one side of the positioning ratchet can release the lock, and then the electrical component can be pulled up and taken out. This completely avoids the problems of easy corrosion and inconvenient disassembly in outdoor environments caused by traditional screw connections. Attached Figure Description

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

[0020] Figure 1 This is a schematic diagram of the modular energy metering box in one embodiment of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of a modular energy metering box in one embodiment of the present invention; Figure 3 for Figure 1 A schematic diagram of the structure in which the vertical mounting plate, strip bracket, horizontal frame, electrical components, positioning assembly assembly, clamping assembly and flexible mounting assembly are assembled; Figure 4 for Figure 1 A cross-sectional structural diagram showing the assembly of the vertical mounting plate, strip bracket, horizontal frame, and positioning assembly components. Figure 5 for Figure 1 A cross-sectional view of the mounting plate, strip bracket, horizontal frame, and positioning assembly components from another angle. Figure 6 for Figure 1A cross-sectional structural diagram showing the assembly of the central horizontal bar frame, positioning protrusions, and positioning assembly components; Figure 7 for Figure 1 A cross-sectional structural diagram showing the integration of flexible mounting components and electrical elements; Figure 8 for Figure 1 A cross-sectional view of the flexible mounting assembly and clamping assembly in operation; Figure 9 for Figure 1 A cross-sectional view of the flexible mounting components and clamping brackets in operation; Figure 10 for Figure 1 A schematic diagram of the structure of the center plate, mounting bracket, ratchet rack and electrical components; Figure 11 for Figure 1 A schematic diagram of the structure of the backing plate, mounting bracket, ratchet rack, and electrical components from another angle.

[0021] In the diagram: 1. Metering box; 2. Mounting plate; 3. Strip bracket; 4. Hanging cross slot; 5. Positioning cross slot; 6. Horizontal frame; 7. Positioning protrusion; 8. Assembly cross slot; 9. Clamping bracket; 10. Electrical components; 101. Cam; 102. Hand grip; 201. Snap-fit ​​protrusion; 202. Sliding bracket; 203. Anti-slip pad; 204. Adjusting screw; 205. Adjusting nut; 301. Backing plate; 302. Assembly bracket; 303. Mounting frame; 304. Sliding cavity; 305. Support frame; 306. Spring; 307. Arc-shaped abutment block; 308. Arc-shaped groove; 309. Ratchet; 310. Positioning ratchet; 311. Push plate. Detailed Implementation

[0022] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0024] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] In the description of the embodiments of this application, the term "and / or" is merely a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0027] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0028] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation", "connection", "linking", and "fixing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components.

[0029] Please see Figures 1 to 6This illustration shows a modular energy metering box according to an embodiment of the present invention, including a metering box body 1, an internal mounting plate 2, strip supports 3, a horizontal frame 6, a positioning assembly assembly, a clamping bracket 9, and electrical components 10 (such as an electricity meter). Several strip supports 3 are arranged parallel to each other at equal intervals on the mounting plate 2. A hanging horizontal groove 4 is provided on the upper side of each strip support 3, and a positioning horizontal groove 5 is provided on the lower side. A positioning protrusion 7 is provided on the side of the horizontal frame 6 closest to the mounting plate 2, and the positioning protrusion 7 is adapted to the hanging horizontal groove 4. An assembly horizontal groove 8 is provided on the side of the horizontal frame 6 away from the mounting plate 2. A positioning assembly assembly is provided on the horizontal frame 6 to fix the relative position of the horizontal frame 6 and the corresponding strip support 3. Figure 6 As shown, the positioning assembly includes a cam 101 and a handgrip 102. The cam 101 is rotatably mounted on the side of the horizontal frame 6 near the mounting plate 2. The cam 101 is adapted to the positioning horizontal groove 5. The handgrip 102 is rotatably mounted on the side of the horizontal frame 6 away from the mounting plate 2. The handgrip 102 is fixedly connected to the cam 101.

[0030] When installing the horizontal bar frame 6, the worker aligns the positioning protrusion 7 on the horizontal bar frame 6 with the hanging groove 4 on the upper side of the designated strip bracket 3, and then places the positioning protrusion 7 into the hanging groove 4. At this time, the horizontal bar frame 6 hangs on the corresponding strip bracket 3 by its own weight. The positioning protrusion 7 can slide along the length direction in the hanging groove 4, so that the left and right installation positions of the horizontal bar frame 6 can be finely adjusted during the installation process. The side of the horizontal bar frame 6 closest to the strip bracket 3 abuts against several corresponding strip brackets 3. Then, the hand grip 102 is held and the hand grip 102 is turned to drive the cam 101 to rotate until the cam 101 enters the positioning groove 5 at the bottom of the strip bracket 3. In this way, the strip bracket 3 bears the vertical load of the horizontal bar frame 6 through the upper hanging groove 4, and the lower positioning groove 5 works with the cam 101 to limit the relative displacement between the horizontal bar frame 6 and the strip bracket 3, so that the horizontal bar frame 6 can be reliably fixed on the corresponding strip bracket 3.

[0031] Compared to the traditional method of fixing electrical components 10 to the metering box 1 with screws, the positioning protrusions 7 and cams 101, in conjunction with the strip brackets 3, enable tool-free quick assembly and disassembly, thereby reducing the time and cost of on-site installation and commissioning. It also allows for smooth disassembly during subsequent maintenance or replacement of the horizontal frame 6. Since multiple strip brackets 3 are pre-installed on the mounting plate 2, staff can flexibly select strip brackets of different heights for installation according to the actual height of the electrical components 10, thus improving the flexibility of the internal space layout of the metering box.

[0032] Several clamping brackets 9 are arranged at intervals on the horizontal bar frame 6. Each clamping bracket 9 is equipped with a clamping component to fix the relative position of the clamping bracket 9 and the horizontal bar frame 6, such as... Figures 7 to 9 As shown, the clamping assembly includes a snap-fit ​​protrusion 201 and an abutment mechanism. Each clamping bracket 9 is provided with a snap-fit ​​protrusion 201 on the side near the horizontal bar frame 6. The snap-fit ​​protrusion 201 is arranged at an angle and is adapted to the assembly horizontal groove 8. The snap-fit ​​protrusion 201 can slide in the assembly horizontal groove 8, allowing the installation position of each clamping bracket 9 to be freely adjusted in the length direction of the horizontal bar frame 6. Each clamping bracket 9 is provided with an abutment mechanism for fixing the relative position of the clamping bracket 9 and the horizontal bar frame 6.

[0033] When installing the clamping bracket 9, first align the snap-fit ​​protrusion 201 on the clamping bracket 9 with the groove of the assembly transverse groove 8. Since the snap-fit ​​protrusion 201 itself has an inclined angle, the worker pushes the snap-fit ​​protrusion 201 into the assembly transverse groove 8 along the inclined direction. Through the inclined arrangement of the snap-fit ​​protrusion 201, it forms a wedge engagement with the assembly transverse groove 8, thereby restricting the displacement of the clamping bracket 9 in directions other than the horizontal direction. After the clamping bracket 9 is installed in place, the abutment mechanism can be adjusted. The abutment mechanism will push the sliding bracket 202 to move until the clamping bracket 9 is firmly fixed on the transverse frame 6. The number of clamping brackets 9 and the installation spacing can be increased or decreased as needed.

[0034] When it is necessary to rearrange or replace a single clamping bracket 9 in the future, the clamping bracket 9 and the horizontal frame 6 can be easily disassembled and assembled. Furthermore, the same horizontal frame 6 can flexibly accommodate electrical components 10 of different widths, thereby facilitating the adjustment of the layout inside the metering box 1.

[0035] The abutment mechanism includes a sliding bracket 202 and an anti-slip pad 203, such as Figure 8 As shown, each clamping bracket 9 is slidably mounted with a sliding bracket 202, and each sliding bracket 202 is provided with an anti-slip pad 203 on its top. The top of the anti-slip pad 203 abuts against the bottom of the crossbar frame 6. It also includes an adjusting screw 204. Each sliding bracket 202 is rotatably mounted with an adjusting screw 204 on its bottom. Each adjusting screw 204 is threaded with an adjusting nut 205, and the adjusting nut 205 is fixedly connected to the corresponding clamping bracket 9.

[0036] After the clamping bracket 9 is placed on the crossbar frame 6 by the cooperation of the snap-fit ​​protrusion 201 and the assembly cross groove 8, the adjusting screw 204 is held and rotated. Since the adjusting screw 204 is fitted inside the adjusting nut 205 which is fixed in position, the adjusting screw 204 will move up and down relative to the clamping bracket 9 during the rotation. When the adjusting screw 204 moves upward, it can push the sliding bracket 202 to slide upward. At this time, the sliding bracket 202 moves upward along the sliding track of the clamping bracket 9 until the anti-slip pad 203 on the top of the sliding bracket 202 is attached to the bottom of the crossbar frame 6.

[0037] At this point, continue rotating the adjusting screw 204 to increase the pressure between the anti-slip pad 203 and the bottom of the crossbar frame 6. This not only increases the friction of the contact surface to prevent slippage, but also provides a certain amount of elastic cushioning to prevent the bottom of the crossbar frame 6 from being crushed. This fixes the relative position between the clamping bracket 9 and the crossbar frame 6. Through the cooperation of the adjusting screw 204 and the adjusting nut 205, the thread self-locking characteristic ensures the stability of the locking state. This not only reduces the occurrence of loosening due to vibration and other factors, but also facilitates disassembly and adjustment.

[0038] Each clamping bracket 9 is equipped with an electrical component 10, which is connected to the corresponding clamping bracket 9 via a flexible mounting assembly, such as... Figures 7 to 11 As shown, the flexible mounting assembly includes a backing plate 301, an assembly bracket 302, a mounting frame 303, a flexible support mechanism, and a plug-in fixing mechanism. Each electrical component 10 has a backing plate 301 on the side near the clamping bracket 9. Each electrical component 10 has an assembly bracket 302, which is fixedly connected to the backing plate 301. Each clamping bracket 9 has a fixed mounting frame 303, which slides with the backing plate 301 and the assembly bracket 302. Each mounting frame 303 has a flexible support mechanism to support the assembly bracket 302. Each mounting frame 303 has a plug-in fixing mechanism to fix the relative position of the assembly bracket 302 and the mounting frame 303.

[0039] When installing electrical component 10, it is first pre-fixed to the backing plate 301 and mounting bracket 302 using screws. Then, the electrical component 10, along with its backing plate 301 and mounting bracket 302, is brought close to the mounting frame 303 on the clamping bracket 9. The mounting bracket 302 is then aligned with the slide entrance of the mounting frame 303. The electrical component 10 is then pressed downwards. The mounting bracket 302 and backing plate 301 will slide downwards along the slide of the mounting frame 303. During this sliding process, the flexible support mechanism provides elastic support to the mounting bracket 302, ensuring proper installation of the electrical component. The component 10 acts as a buffer during installation and provides a pre-tightening force before the plug-in fixing mechanism is fully locked, limiting the position of the mounting bracket 302 and facilitating the locking of the electrical component 10. When the electrical component 10 slides down to the predetermined position, the plug-in fixing mechanism automatically intervenes to lock the mounting bracket 302 onto the mounting frame 303, preventing it from moving up and down, thereby installing the electrical component 10 onto the clamping bracket 9. When disassembly is required, the operator can release the lock of the plug-in fixing mechanism, lift the electrical component 10 upwards, and remove the electrical component 10.

[0040] The flexible support mechanism includes a sliding cavity 304, a support frame 305, and abutment components, such as... Figure 7 , Figure 9 As shown, each mounting frame 303 has two symmetrical sliding cavities 304 inside. Each sliding cavity 304 has a support frame 305 slidably installed inside. Each sliding cavity 304 has a spring 306 fixedly installed inside. The spring 306 is fixedly connected to the support frame 305. Each support frame 305 is provided with an abutting member, which abuts against the bottom of the mounting bracket 302.

[0041] As the assembly bracket 302 enters the mounting frame 303, its bottom contacts the abutment member at the top of the support frame 305 as the bracket moves. As the bracket continues to descend, the support frame 305 supports the bracket through the abutment member. At this time, the support frame 305 slides downward in the sliding cavity 304, while the spring 306 is compressed. Under the action of the spring 306, the force is transmitted to the assembly bracket 302 through the support frame 305 and the abutment member, so that the assembly bracket 302 receives a continuous upward support force, ensuring that the assembly bracket 302 will not fall freely due to its own weight.

[0042] The abutment component includes an arc-shaped abutment block 307, such as Figure 9 , Figure 11 As shown, each support frame 305 is equipped with an arc-shaped abutment block 307. An arc-shaped groove 308 is provided at the bottom of the mounting bracket 302 at the position corresponding to the support frame 305. The arc-shaped groove 308 is adapted to the arc-shaped abutment block 307.

[0043] As the assembly bracket 302 moves downward, the arc-shaped groove 308 at the bottom of the assembly bracket 302 gradually approaches the arc-shaped abutment block 307 at the top of the support frame 305. When the arc-shaped groove 308 meets the arc-shaped abutment block 307, the arc-shaped abutment block 307 will naturally embed into the interior of the arc-shaped groove 308 because their shapes are compatible. As the assembly bracket 302 continues to move downward, the arc-shaped surface of the arc-shaped abutment block 307 forms a tight contact with the arc-shaped inner wall of the arc-shaped groove 308, so that the assembly bracket 302 does not need to be deliberately aligned in the left and right directions, and the arc-shaped structure will play an automatic centering role.

[0044] The insertion and fixing mechanism includes a ratchet rack 309 and a positioning ratchet 310, such as Figures 9 to 11 As shown, each assembly bracket 302 is symmetrically provided with a ratchet rack 309, and each mounting frame 303 is symmetrically provided with a positioning ratchet 310. The positioning ratchet 310 is adapted to the ratchet rack 309, and a push plate 311 is fixedly provided on the side of each positioning ratchet 310 away from the ratchet rack 309.

[0045] As the assembly bracket 302 moves downward, the ratchet racks 309 on both sides of the assembly bracket 302 also move downward. When the ratchet rack 309 passes the positioning ratchet 310 on the mounting frame 303, the inclined tooth surface on the ratchet rack 309 will contact the tooth tip of the positioning ratchet 310. Due to the guiding effect of the inclined tooth surface, the positioning ratchet 310 will be pushed away by the ratchet rack 309. The positioning ratchet 310 will undergo elastic deformation outward, allowing the ratchet rack 309 to pass smoothly. When the ratchet rack 309 continues to move downward by one tooth pitch, the tooth tip of the positioning ratchet 310 will fall into the next tooth groove of the ratchet rack 309. When the assembly bracket 302 moves downward to the predetermined installation position, the positioning ratchet 310 can lock the assembly bracket 302 in the current position.

[0046] When it is necessary to remove the electrical component 10, press the push plate 311. The push plate 311 drives the positioning ratchet 310 to swing outward, so that the tip of the positioning ratchet 310 can disengage from the tooth groove of the ratchet rack 309. At this time, the mounting bracket 302 is unrestrained, and the electrical component 10 can be removed by lifting it upward.

[0047] When it is necessary to install the electrical component 10 in the metering box 1, first install the position of the horizontal bar frame 6. At this time, align the positioning protrusion 7 on the horizontal bar frame 6 with the hanging horizontal groove 4 on the upper side of the designated bar bracket 3, and then put the positioning protrusion 7 into the hanging horizontal groove 4. At this time, the horizontal bar frame 6 hangs on the corresponding bar bracket 3 by its own weight. The side of the horizontal bar frame 6 close to the bar bracket 3 abuts against several corresponding bar brackets 3. Then, hold the hand grip 102 and turn the hand grip 102 to drive the cam 101 to rotate until the cam 101 enters the positioning horizontal groove 5 at the bottom of the bar bracket 3, thereby limiting the relative displacement between the horizontal bar frame 6 and the bar bracket 3, and fixing the horizontal bar frame 6 on the corresponding bar bracket 3.

[0048] Then, according to the specifications and types of electrical components 10, install a specified number of clamping brackets 9. At this time, align the snap-fit ​​protrusions 201 on the clamping brackets 9 with the slots of the assembly transverse grooves 8. The operator pushes the snap-fit ​​protrusions 201 into the assembly transverse grooves 8 along the inclined direction. Through the inclined arrangement of the snap-fit ​​protrusions 201, a wedge fit is formed with the assembly transverse grooves 8, thereby restricting the displacement of the clamping brackets 9 in directions other than the horizontal direction. After the clamping brackets 9 are installed in place, the adjusting screw 204 can be grasped and rotated. Under the action of the adjusting nut 205, as the adjusting screw 204 rotates, the adjusting screw 204 will move relative to the mounting bracket. The clamping bracket 9 moves up and down. When the adjusting screw 204 moves upward, it pushes the sliding bracket 202 to slide upward. At this time, the sliding bracket 202 moves upward along the sliding track of the clamping bracket 9 until the anti-slip pad 203 on the top of the sliding bracket 202 is in contact with the bottom of the crossbar frame 6. Then, the adjusting screw 204 is rotated to increase the pressure between the anti-slip pad 203 and the bottom of the crossbar frame 6. This not only increases the friction of the contact surface to prevent slippage, but also provides a certain elastic buffer to prevent the bottom of the crossbar frame 6 from being crushed, thereby fixing the relative position between the clamping bracket 9 and the crossbar frame 6.

[0049] Next, install the electrical component 10. First, pre-fix the electrical component 10 to the backing plate 301 and the mounting bracket 302 using screws. Align the electrical component 10, along with its backing plate 301 and mounting bracket 302, with the slide entrance of the mounting frame 303. Then, press the electrical component 10 downwards. At this time, the mounting bracket 302 and the backing plate 301 will slide downwards along the slide of the mounting frame 303. As the mounting bracket 302 moves, the arc-shaped groove 308 at the bottom of the mounting bracket 302 gradually approaches the top of the support frame 305. When the arc-shaped groove 308 meets the arc-shaped abutment block 307, the arc-shaped abutment block 307 will naturally embed into the interior of the arc-shaped groove 308 due to the mutual adaptation of their shapes. As the assembly bracket 302 continues to descend, the support frame 305 slides downward in the sliding cavity 304, and at the same time, the spring 306 is compressed. At this time, under the action of the elastic force of the spring 306, it is transmitted to the assembly bracket 302 through the support frame 305, so that the assembly bracket 302 receives a continuous upward support force, ensuring that the assembly bracket 302 will not fall freely due to its own weight.

[0050] At the same time, as the assembly bracket 302 moves down, the ratchet racks 309 on both sides of the assembly bracket 302 also move down together with the assembly bracket 302. When the ratchet rack 309 passes the positioning ratchet 310 on the mounting frame 303, the inclined tooth surface on the ratchet rack 309 will contact the tooth tip of the positioning ratchet 310. When the assembly bracket 302 moves down to the predetermined installation position, the positioning ratchet 310 can lock the assembly bracket 302 in the current position, thereby locking the position of the electrical component 10 and completing the installation of the electrical component 10.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of protection of the claims of the present invention.

Claims

1. A modular energy metering box, comprising a metering box body (1), wherein an mounting plate (2) is provided inside the metering box body (1), characterized in that, Also includes: A strip bracket (3) is provided on the mounting plate (2) with several strip brackets (3) arranged at equal distances and parallel to each other. A hanging horizontal groove (4) is provided on the upper side of the strip bracket (3) and a positioning horizontal groove (5) is provided on the lower side of the strip bracket (3). A horizontal bar frame (6) is provided with a positioning protrusion (7) on the side of the horizontal bar frame (6) close to the mounting plate (2). The positioning protrusion (7) is adapted to the hanging horizontal groove (4). An assembly horizontal groove (8) is provided on the side of the horizontal bar frame (6) away from the mounting plate (2). Positioning assembly component, the horizontal bar frame (6) is provided with the positioning assembly component, which is used to fix the relative position of the horizontal bar frame (6) and the corresponding bar bracket (3); Clamping bracket (9), a number of clamping brackets (9) are arranged at intervals on the horizontal bar frame (6), and each clamping bracket (9) is provided with a clamping component for fixing the relative position of the clamping bracket (9) and the horizontal bar frame (6); Electrical component (10), each of the clamping brackets (9) is provided with the electrical component (10), and the electrical component (10) is connected to the corresponding clamping bracket (9) through a flexible mounting assembly; The positioning assembly component includes: Cam (101), the horizontal frame (6) is rotatably mounted on the side near the mounting plate (2), the cam (101) is adapted to the positioning horizontal groove (5); Hand grip (102), the hand grip (102) is rotatably mounted on the side of the horizontal frame (6) away from the mounting plate (2), and the hand grip (102) is fixedly connected to the cam (101); The flexible mounting assembly includes: A backing plate (301) is provided on the side of each electrical component (10) near the clamping bracket (9). Assembly bracket (302), each of the electrical components (10) is provided with the assembly bracket (302), and the assembly bracket (302) is fixedly connected to the back plate (301); Mounting frame (303), each of the clamping brackets (9) is fixedly provided with the mounting frame (303), the mounting frame (303) is slidably engaged with the backing plate (301) and the assembly bracket (302); A flexible support mechanism is provided on each of the mounting frames (303) to support the assembly bracket (302). A plug-in fixing mechanism is provided on each of the mounting frames (303) to fix the relative position of the assembly bracket (302) and the mounting frame (303).

2. The modular energy metering box according to claim 1, characterized in that, The clamping assembly includes: A snap-fit ​​protrusion (201) is provided on the side of each clamping bracket (9) near the horizontal bar frame (6). The snap-fit ​​protrusion (201) is arranged at an angle and is adapted to the assembly horizontal groove (8). A contact mechanism is provided on each of the clamping brackets (9) to fix the relative position of the clamping bracket (9) and the horizontal frame (6).

3. The modular energy metering box according to claim 2, characterized in that, The receiving mechanism includes: Sliding bracket (202), each of the clamping brackets (9) is slidably mounted with the sliding bracket (202); Anti-slip pad (203), each of the sliding brackets (202) is provided with the anti-slip pad (203) on top, and the top of the anti-slip pad (203) abuts against the bottom of the horizontal frame (6).

4. The modular energy metering box according to claim 3, characterized in that, It also includes an adjustment screw (204), and the adjustment screw (204) is rotatably installed on the bottom of each sliding bracket (202). An adjustment nut (205) is threaded onto each adjustment screw (204), and the adjustment nut (205) is fixedly connected to the corresponding clamping bracket (9).

5. The modular energy metering box according to claim 1, characterized in that, The flexible support mechanism includes: Sliding cavities (304): Two sliding cavities (304) are symmetrically formed inside each of the mounting frames (303). The support frame (305) is slidably installed inside each of the sliding cavities (304); Abutting member is provided on each of the support frames (305), and the abutting member abuts against the bottom of the assembly bracket (302).

6. The modular energy metering box according to claim 5, characterized in that, Each of the sliding cavities (304) is fixedly installed with a spring (306), and the spring (306) is fixedly connected to the support frame (305).

7. The modular energy metering box according to claim 6, characterized in that, The abutting component includes an arc-shaped abutting block (307), and each of the support frames (305) is equipped with an arc-shaped abutting block (307). The bottom of the assembly bracket (302) is provided with an arc-shaped groove (308) at a position corresponding to the support frame (305), and the arc-shaped groove (308) is adapted to the arc-shaped abutting block (307).

8. The modular energy metering box according to claim 7, characterized in that, The insertion and fixing mechanism includes: Ratchet (309), each of the mounting brackets (302) is symmetrically provided with a ratchet (309); Positioning ratchet (310): Each of the mounting frames (303) is symmetrically provided with positioning ratchet (310). The positioning ratchet (310) is adapted to the ratchet rack (309). A push plate (311) is fixedly provided on the side of each positioning ratchet (310) away from the ratchet rack (309).

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