SMC electric energy metering box facilitating wire arrangement

Abstract

The application discloses an SMC electric energy metering box convenient for wire arrangement, and belongs to the technical field of electric power metering equipment, which comprises a box body, a transparent box door, a mounting plate and a limiting piece one, the opening end of the box body is provided with the transparent box door, the mounting plate is slidingly installed in the box body, the plate surface of the mounting plate is parallel to the opening end surface of the box body, the moving direction of the mounting plate relative to the box body is perpendicular to the opening end surface of the box body, and the electric energy metering device is fixed on the mounting plate; one end of the limiting piece one is fixed in the box body, the other end of the limiting piece one is detachably fixed with the mounting plate, and the end, away from the mounting plate, of the electric energy metering device can be located outside the box body. The electric energy metering box is simple and reliable in structure, the mounting plate is slidingly installed in the box body, the design is convenient for fixing and wire arrangement of the electric energy metering device, the limiting piece one can limit the mounting plate, and it is ensured that the mounting plate with the electric energy metering device will not be moved at will in the box body.

Description

Technical Field

[0001] This invention relates to the field of power metering equipment technology, and in particular to an SMC power metering box that facilitates wiring. Background Technology

[0002] Electricity metering boxes are core supporting equipment in power systems used to install electricity metering devices, protect metering equipment, and manage cables. They are widely used in various scenarios such as residential communities, industrial plants, and commercial buildings. Their ease of installation, reasonable cable routing, and structural stability directly affect the efficiency and safety of electricity metering. Currently, most electricity metering boxes on the market adopt traditional structural designs, which have many problems that urgently need to be solved.

[0003] Most existing electricity metering boxes have mounting plates that are either fixedly installed or require complete removal before the electricity metering device can be installed and wired. This process is cumbersome and inconvenient. On the one hand, for fixed mounting plates, workers need to wire, connect, and secure the equipment within the confined space inside the box. The limited operating space and obstructed view not only reduce installation efficiency but also easily lead to messy wiring, incorrect connections, and other problems, making subsequent inspection and maintenance difficult. On the other hand, for mounting plates that need to be removed as a whole, their weight and size are large, making removal and repositioning time-consuming and labor-intensive. Furthermore, the mounting plate requires high precision in its fit with the fixing bolts inside the box, making accurate positioning difficult during repositioning.

[0004] Meanwhile, the existing electricity metering boxes are mostly made of ordinary metal or plastic materials for their boxes and mounting plates, which have defects such as heavy weight, low strength and poor insulation performance. Long-term use can easily lead to rust and deformation, which not only affects the stability of the equipment, but may also bring safety hazards.

[0005] In addition, most electricity metering boxes are installed on high vertical walls. Traditional fixing methods require multiple fixing points, which is cumbersome to install. After installation, the angle of the box is fixed, and staff have to climb to work when reading meters and performing maintenance, which is inconvenient and poses safety risks. Some metering boxes lack reliable locking structures in their door design, making them easy to open at will, affecting the safety of the metering equipment and the accuracy of the metering data.

[0006] Therefore, how to provide an SMC power metering box that facilitates wiring and overcomes the aforementioned problems is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] To achieve the above objectives, the present invention provides an SMC power metering box that facilitates cable routing, comprising: a box body, a transparent door, a mounting plate, and a limiting member; one end of the box body is open and the other end is closed; the open end of the box body is fitted with a transparent door that can block it; the mounting plate is slidably installed inside the box body, the surface of the mounting plate is parallel to the open end face of the box body, and the direction of movement of the mounting plate relative to the box body is perpendicular to the open end face of the box body; the power metering device is fixed on the mounting plate; one end of the limiting member is fixed inside the box body, and the other end of the limiting member is detachably fixed to the mounting plate; the end of the power metering device away from the mounting plate can be located outside the box body.

[0008] Preferably, both the enclosure and the mounting plate are integrally molded from SMC material.

[0009] Preferably, the transparent door and the box body are hinged together and have a hinge axis, which is parallel to the opening end face of the box body; a first connector is fixed on the box body, and a through hole is provided on the plate of the first connector; a second connector is fixed on the transparent door, and a second through hole is provided on the plate of the second connector. The first through hole and the second through hole can be arranged coaxially, and the box body is arranged between the hinge axis and the first through hole. The lock beam of the padlock can pass through both the first through hole and the second through hole at the same time.

[0010] Preferably, the lower side wall of the box has a notch that extends through the open end of the box. A wire guide plate is detachably sealed at the notch, and wire guide holes are provided on the surface of the wire guide plate.

[0011] Preferably, the assembly also includes guide rods and sliders. Multiple connecting blocks are integrally formed within the housing, each with a threaded hole. Multiple limiting protrusions are integrally formed on the inner side of the opening end of the housing, each with a clearance hole. The threaded holes and clearance holes correspond to each other along the length of the housing. Multiple guide rods are provided and parallel to each other, with their length direction perpendicular to the opening end face of the housing. Each guide rod has an external thread at one end, and each guide rod is inserted into a plurality of clearance holes and screwed into a plurality of threaded holes. Multiple sliders are provided and fixed to the mounting plate, each slider having a sliding hole. The guide rods slide through the plurality of sliding holes. The two side surfaces of the mounting plate can abut against the limiting protrusions and connecting blocks, respectively.

[0012] Preferably, the limiting component includes a screw and a nut. The screw is vertically fixed inside the closed end of the housing. The mounting plate has a mounting hole on its surface, in which the screw can be inserted. The nut is screwed onto the screw, and the mounting plate can clamp and limit the positioning between the closed end of the housing and the nut.

[0013] Preferably, it also includes a second limiting component, which includes a connecting rod and a limiting block. Multiple connecting rods are provided and each is vertically fixed on the mounting plate. Multiple limiting blocks are provided and each is rotatably connected to multiple connecting rods. The rotation axis of the limiting block relative to the connecting rod is perpendicular to the surface of the mounting plate. Multiple limiting blocks can be arranged outside the box at the same time and abut against the end wall of the opening end of the box.

[0014] Preferably, the mounting plate has square grid lines for cable positioning on the side of the mounting plate closest to the transparent door; a handle is fixed on the side of the mounting plate closest to the transparent door.

[0015] Preferably, it also includes a hinge, a connecting bolt, a hook, and a chain. One end of the hinge is fixed to the outside of the closed end of the housing, and the other end of the hinge is fixed to the vertical mounting surface. The rotation axis of the hinge is arranged horizontally and is parallel to the surface of the mounting plate. The housing has an integrally formed threaded connection hole, and one end of the connecting bolt is screwed into the threaded connection hole. The connecting bolt and the hinge are respectively arranged close to the upper and lower side walls of the housing. The hook is fixed to the vertical mounting surface and is located above the housing. One end of the chain is hooked to the hook, and a chain loop in the chain is fitted onto the connecting bolt.

[0016] The advantages and positive effects of the SMC power metering box with easy wiring described in this invention are: 1. In this invention, the mounting plate is slidably installed inside the housing. The mounting plate and the limiting member are detachably fixed. The energy metering device is fixed on the mounting plate. When installing and wiring the energy metering device, the energy metering device can be arranged outside the opening end of the housing, which facilitates workers to fix the energy metering device and wire it. After the energy metering device is installed, the mounting plate can be reset and connected to the limiting member. Since the limiting member limits the mounting plate, the mounting plate with the energy metering device will not move freely inside the housing. When installing and wiring the energy metering device, the mounting plate does not need to be removed from the housing, which facilitates the reset of the mounting plate later.

[0017] 2. The transparent door design makes it easy for staff to observe the status of the power metering device inside the box and the displayed data values.

[0018] 3. The enclosure and mounting plate are both made of SMC material in one piece, which has a fast molding speed and stable quality. The enclosure and mounting plate are lightweight, high-strength and insulated, and at the same time, it is convenient to fix the power metering device on the mounting plate.

[0019] 4. The transparent door is hinged to the box body and is also designed with connector one and connector two. On the one hand, the transparent door can be opened and closed reliably; on the other hand, a padlock can be installed between the transparent door and the box body to prevent the transparent door from being opened at will.

[0020] 5. The design of the notch and the cable guide plate serves two purposes: firstly, it facilitates the wiring during the initial installation of the electricity metering device; secondly, when it is necessary to disassemble, replace, or repair the already installed electricity metering device, after the limit piece is disconnected from the mounting plate, the bolts used to fix the cable guide plate can be removed, thus ensuring that the mounting plate can move smoothly, meaning that the wires in the cable guide holes will not obstruct the reciprocating movement of the mounting plate.

[0021] 6. By designing guide rods and sliders, the mounting plate can reliably slide within the housing, and its surface remains parallel to the opening end face of the housing during the sliding process; firstly, the connecting block and limiting protrusion can limit the mounting plate to ensure that it does not move out of the housing; secondly, the connecting block and limiting protrusion can fix and limit the guide rod.

[0022] 7. The screw in the limiting component is fixed inside the box. The mounting plate has mounting holes. When the mounting plate moves inside the box, the screw can pass through the mounting holes, and the nut can limit the mounting plate to ensure that the mounting plate will not move arbitrarily inside the box.

[0023] 8. Limiting component two can limit the mounting plate. Here, limiting means that when the power metering device is fixed and wired, the mounting plate is placed near the opening end of the box and does not move. When the mounting plate moves to the point where its surface abuts against the limiting protrusion, the limiting block is rotated so that the limiting block abuts against the end wall of the opening end of the box. At this time, the mounting plate will not move arbitrarily or reset. After the power metering device is disassembled and wired, the limiting block is rotated so that the four limiting blocks are located in the area defined by the outer contour of the mounting plate. At this time, the mounting plate can move and reset.

[0024] 9. By designing hinges, connecting bolts, hooks, and chains, firstly, this design facilitates the fixing of the enclosure. The enclosure is fixed to a vertical mounting surface, requiring only three fixing points: two hinges and one hook. Secondly, it facilitates the disassembly and wiring of the electricity metering device inside the enclosure. With the enclosure already installed at a high position, workers can adjust the angle of the mounting plate relative to the horizontal plane when inspecting, replacing, or disassembling cables for the electricity metering device. This is achieved by selecting a suitable chain loop to fit onto the connecting bolts, making it easy for workers to disassemble, assemble, and wire the electricity metering device. Finally, and most importantly, with the enclosure fixed to a vertical mounting surface and in a high position, it can be tilted. That is, the open end of the enclosure is tilted relative to the horizontal plane, or the mounting plate is tilted relative to the horizontal plane. This facilitates meter reading and data observation for personnel below the enclosure. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the invention installed on a vertical mounting surface; Figure 2 This is an isometric view of the present invention; Figure 3 This is an exploded isometric view of the present invention; Figure 4 This is a partial isometric view of the present invention; Figure 5 This is an isometric view of the limiting block abutting against the open end of the box in this invention.

[0026] Figure Labels 01. Box body; 010. Connector 1; 011. Notch; 012. Connecting block; 013. Limiting protrusion; 014. Threaded connection hole; 02. Transparent box door; 020. Connector 2; 03. Mounting plate; 030. Mounting hole; 031. Square grid line; 04. Limiting component 1; 040. Screw; 041. Nut; 05. Padlock; 06. Cable guide plate; 060. Cable hole; 07. Guide rod; 08. Slider; 09. Limiting component 2; 090. Connecting rod; 091. Limiting block; 10. Handle; 11. Hinge; 12. Connecting bolt; 13. Hook; 14. Chain; 15. Vertical mounting surface; 16. Protective coil. Detailed Implementation

[0027] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] In this application, 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. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.

[0029] See appendix Figure 1-5This is a schematic diagram of the overall and partial structure of one embodiment of the present invention. Specifically, the present invention discloses an SMC energy metering box that facilitates wiring. The metering box can be fixed on a vertical mounting surface 15. The metering box includes: a box body 01, a transparent door 02, a mounting plate 03, and a limiting member 04. The box body 01 is a rectangular body with one open end and the other closed. A transparent door 02 is installed at the open end of the box body 01 to block it, allowing personnel to observe the interior of the box body 01 and the data displayed on the energy metering device through the transparent door 02. The mounting plate 03 is slidably installed inside the box body 01, with its surface parallel to the open end face of the box body 01. The direction of movement of the mounting plate 03 relative to the box body 01 is perpendicular to the open end face of the box body 01. The energy metering device can be fixed to the mounting plate 03 by screws. Both the box body 01 and the mounting plate 03 are integrally molded from SMC material, and the screws can be directly screwed onto the mounting plate 03. One end of the limiting component 04 is fixed inside the housing 01, and the other end of the limiting component 04 is detachably fixed to the mounting plate 03.

[0030] After the electricity metering device is installed, it is completely arranged inside the box 01. The limiting component 04 is connected to the mounting plate 03 to ensure that the mounting plate 03 will not slide relative to the box 01.

[0031] During the fixing and wiring stage of the electricity metering device, the limiting component 04 can detach from the mounting plate 03, allowing the mounting plate 03 to move and move the electricity metering device out of the enclosure 01. That is, the end of the electricity metering device furthest from the mounting plate 03 can be located outside the enclosure 01, facilitating the fixing and wiring of the electricity metering device by the staff. After the electricity metering device is installed in place, the mounting plate 03 is reset and connected to the limiting component 04, ensuring that the electricity metering device is reliably arranged inside the enclosure 01.

[0032] During the installation and wiring of the above-mentioned electricity metering device, the mounting plate 03 does not need to be removed from the box 01. Under the premise of ensuring the smooth installation and wiring of the electricity metering device, the mounting plate 03 does not need to be disassembled. The conventional operation is to first remove the mounting plate 03 from the box 01, and then install the electricity metering device. After the installation is completed, the mounting plate 03 containing the electricity metering device is put back into the box 01. This operation is troublesome because the mounting plate 03 is relatively heavy and bulky, and the process of putting the mounting plate 03 back is also troublesome. In addition, the mounting plate 03 is slightly smaller than the opening diameter of the box 01, and the mounting plate 03 is not easy to accurately reset.

[0033] The transparent door 02 is hinged to the box body 01, and the two have a hinge axis. The hinge axis is parallel to the opening end face of the box body 01. A connector 1 010 is fixed on the box body 01. A through hole 1 is opened on the plate of the connector 1 010. A connector 2 020 is fixed on the transparent door 02. A through hole 2 is opened on the plate of the connector 2 020. The through hole 1 and the through hole 2 can be arranged coaxially. The box body 01 is arranged between the hinge axis and the through hole 1. The locking beam of the padlock 05 can pass through both the through hole 1 and the through hole 2 at the same time, so that personnel can open the transparent door 02 smoothly. At the same time, when it is not necessary to move the equipment inside the box body 01, the transparent door 02 can be locked by the padlock 05.

[0034] A rectangular notch 011 is provided on the lower side wall of the enclosure 01. The notch 011 extends through the open end of the enclosure 01. A wire guide plate 06 is detachably sealed at the notch 011. The wire guide plate 06 is fixed to the enclosure 01 by bolts. A wire hole 060 is provided on the surface of the wire guide plate 06. An elastic protective coil 16 is embedded inside the wire hole 060. The protective coil 16 can prevent the wire inside the wire hole 060 from being cut.

[0035] The design of the notch 011 and the cable guide plate 06 serves two purposes: first, it facilitates the wiring during the initial installation of the electricity metering device; second, when it is necessary to disassemble, replace, or repair the already installed electricity metering device, after the limit piece 04 is disconnected from the mounting plate 03, the bolts used to fix the cable guide plate 06 can be removed, thus ensuring that the mounting plate 03 can move smoothly, that is, the wires in the cable hole 060 will not obstruct the reciprocating movement of the mounting plate 03.

[0036] More specifically, it also includes guide rods 07 and sliders 08. Four connecting blocks 012 are integrally formed inside the housing 01, each of which has a threaded hole. Four limiting protrusions 013 are integrally formed on the inner side of the opening end of the housing 01, each of which has a clearance hole. The multiple threaded holes and clearance holes correspond to each other along the length of the housing 01. There are four guide rods 07 that are parallel to each other. The length direction of the guide rods 07 is perpendicular to the opening end face of the housing 01. One end of each guide rod 07 has an external thread. The four guide rods 07 are each inserted into the four clearance holes and screwed into the four threaded holes. There are four sliders 08 that are fixed on the mounting plate 03. In this embodiment, the mounting plate 03 is a rectangular plate. The four sliders 08 are each arranged at the four corners of the mounting plate 03. Each slider 08 has a sliding hole, and the four guide rods 07 slide through the four sliding holes. The two sides of the mounting plate 03 can abut against the limiting protrusion 013 and the connecting block 012 respectively. The limiting protrusion 013 and the connecting block 012 can limit the mounting plate 03 to ensure that the mounting plate 03 will not move out of the box 01. At the same time, the limiting protrusion 013 and the connecting block 012 can also fix and limit the guide rod 07. During the movement of the mounting plate 03, the plate surface of the mounting plate 03 is always perpendicular to the length direction of the guide rod 07.

[0037] The limiting component 04 includes a screw 040 and a nut 041. The screw 040 is vertically fixed inside the closed end of the housing 01. The mounting plate 03 has a mounting hole 030 on its surface. The screw 040 can be inserted into the mounting hole 030. The nut 041 is screwed onto the screw 040. The mounting plate 03 can clamp and limit the housing 01 between the closed end and the nut 041. When the mounting plate 03 needs to be moved, the nut 041 can be removed. Conversely, when the mounting plate 03 is reset, the nut 041 needs to be tightened to ensure that the mounting plate 03 will not move arbitrarily.

[0038] More specifically, it also includes a second limiting component 09, which includes connecting rods 090 and limiting blocks 091. There are four connecting rods 090, all of which are vertically fixed on the mounting plate 03. There are four limiting blocks 091, each of which is rotatably connected to the four connecting rods 090. The rotation axis of the limiting block 091 relative to the connecting rods 090 is perpendicular to the surface of the mounting plate 03. The four limiting blocks 091 can be arranged simultaneously outside the housing 01 and abut against the end wall of the opening end of the housing 01.

[0039] When installing or disassembling / replacing the electricity metering device, when the mounting plate 03 moves to the point where its surface abuts against the limiting protrusion 013, rotate the four limiting blocks 091 so that the limiting blocks 091 abut against the end wall of the opening end of the housing 01. At this time, the mounting plate 03 will not move arbitrarily or reset. After the electricity metering device is disassembled and the wiring is completed, rotate the limiting blocks 091 so that the four limiting blocks 091 are located within the area defined by the outer contour of the mounting plate 03. At this time, the mounting plate 03 can be moved and reset.

[0040] The mounting plate 03 has square grid lines 031 on the side near the transparent door 02 for wiring positioning. After the power metering device is fixed on the mounting plate 03, the square grid lines 031 can assist the staff in wiring, that is, the square grid lines 031 can serve as markings. A handle 10 is fixed on the side of the mounting plate 03 near the transparent door 02, and the mounting plate 03 can be moved by holding the handle 10.

[0041] More specifically, it also includes a hinge 11, a connecting bolt 12, a hook 13, and a chain 14. One end of the hinge 11 is fixed to the outside of the closed end of the housing 01 by a bolt connection, and the other end of the hinge 11 is fixed to the vertical mounting surface 15 by an expansion bolt. The rotation axis of the hinge 11 is horizontally arranged and parallel to the surface of the mounting plate 03. A threaded connection hole 014 is integrally formed on the housing 01, and one end of the connecting bolt 12 is screwed into the threaded connection hole 014. The connecting bolt 12 and the hinge 11 are respectively arranged near the upper and lower side walls of the housing 01. The hook 13 is fixed to the vertical mounting surface 15 and is located above the housing 01. The chain 14 is composed of multiple chain rings connected in sequence. One end of the chain 14 is hooked to the hook 13, that is, the first chain ring among the multiple chain rings is hooked to the hook 13. According to the installation and use requirements, the workers can put one of the chain rings of the chain 14 onto the connecting bolt 12.

[0042] The purpose of designing hinges 11, connecting bolts 12, hooks 13, and chain links 14 is twofold: First, to facilitate the fixing of the enclosure 01, which is fixed on the vertical mounting surface 15, requiring only three fixing points: two hinges 11 and one hook 13. Second, to facilitate the disassembly, assembly, and wiring of the energy metering device inside the enclosure 01. With the enclosure 01 already installed at a high position, when workers inspect, replace, or disassemble cables for the energy metering device, adjusting the chain links 14 allows for adjustment of the angle of the mounting plate 03 relative to the horizontal plane. This is achieved by selecting a suitable chain loop to fit onto the connecting bolts 12, facilitating the disassembly, assembly, and wiring of the energy metering device. Third, the box 01 is fixed on the vertical mounting surface 15 and is in a high mounting position. The box 01 can be arranged at an angle, that is, the open end face of the box 01 is arranged at an angle relative to the horizontal plane, or the plate surface of the mounting plate 03 is arranged at an angle relative to the horizontal plane. This makes it easier for the staff below the box 01 to read the meter of the electricity metering device and to observe the data on the electricity metering device.

[0043] When using this electricity metering box: First, remove nut 041 and move mounting plate 03. When mounting plate 03 abuts against limit protrusion 013, rotate and adjust four limit blocks 091 so that the four limit blocks 091 abut against the end wall of the opening of box 01.

[0044] Second, install and wire the power metering device on mounting plate 03.

[0045] Third, after the installation and wiring of the electricity metering device are completed, the four limit blocks 091 are reset, the mounting plate 03 is reset, and the nut 041 is tightened.

[0046] Finally, 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 still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An SMC power metering box that facilitates wiring, characterized in that, include: The enclosure comprises a housing, a transparent door, a mounting plate, and a limiting component. One end of the housing is open, and the other end is closed. A transparent door is installed at the open end of the housing to seal it. The mounting plate is slidably installed inside the housing, with its surface parallel to the open end face of the housing. The direction of movement of the mounting plate relative to the housing is perpendicular to the open end face of the housing. An electricity metering device is fixed on the mounting plate. One end of the limiting component is fixed inside the housing, and the other end of the limiting component is detachably fixed to the mounting plate. The end of the electricity metering device furthest from the mounting plate can be located outside the housing.

2. The SMC power metering box for easy wiring as described in claim 1, characterized in that, Both the enclosure and the mounting plate are made of SMC material in one piece.

3. The SMC power metering box for easy wiring as described in claim 1, characterized in that, The transparent case door is hinged to the case body, and the two have a hinge axis, which is parallel to the opening end face of the case body. A connector is fixed on the case body, and a through hole is opened on the plate of the connector. A connector is fixed on the transparent case door, and a through hole is opened on the plate of the connector. The through hole and the through hole can be arranged coaxially. The case body is arranged between the hinge axis and the through hole. The lock beam of the padlock can pass through both the through hole and the through hole.

4. The SMC power metering box for easy wiring as described in claim 1, characterized in that, The lower side wall of the enclosure has a notch that extends through the opening of the enclosure. A wire guide plate is detachably sealed at the notch, and wire holes are provided on the surface of the wire guide plate.

5. The SMC power metering box for easy wiring as described in claim 1, characterized in that, It also includes guide rods and sliders. Multiple connecting blocks are integrally formed inside the housing, each with a threaded hole. Multiple limiting protrusions are integrally formed on the inner side of the opening end of the housing, each with a clearance hole. The multiple threaded holes and clearance holes correspond to each other along the length of the housing. Multiple guide rods are provided and are parallel to each other. The length direction of the guide rods is perpendicular to the opening end face of the housing. One end of each guide rod is provided with an external thread. Multiple guide rods are inserted into multiple clearance holes and screwed into multiple threaded holes. Multiple sliders are provided and are fixed on the mounting plate. Each slider has a sliding hole, and multiple guide rods slide through multiple sliding holes. The two sides of the mounting plate can abut against the limiting protrusions and connecting blocks respectively.

6. The SMC power metering box for easy wiring as described in claim 1, characterized in that, The limiting component includes a screw and a nut. The screw is vertically fixed inside the closed end of the housing. The mounting plate has a mounting hole on its surface, in which the screw can be inserted. The nut is screwed onto the screw, and the mounting plate can clamp and limit the positioning between the closed end of the housing and the nut.

7. The SMC power metering box for easy wiring as described in claim 1, characterized in that, It also includes a second limiting component, which includes a connecting rod and a limiting block. There are multiple connecting rods, all of which are vertically fixed on the mounting plate. There are multiple limiting blocks, each of which is rotatably connected to multiple connecting rods. The rotation axis of the limiting block relative to the connecting rod is perpendicular to the surface of the mounting plate. Multiple limiting blocks can be arranged outside the box at the same time and abut against the end wall of the opening end of the box.

8. The SMC power metering box for easy wiring as described in claim 1, characterized in that, The mounting plate has square grid lines for cable positioning on the side closest to the transparent door; a handle is fixed on the side of the mounting plate closest to the transparent door.

9. The SMC power metering box for easy wiring as described in claim 1, characterized in that, It also includes hinges, connecting bolts, hooks, and chains. One end of the hinge is fixed to the outside of the closed end of the housing, and the other end is fixed to the vertical mounting surface. The axis of rotation of the hinge is arranged horizontally and is parallel to the surface of the mounting plate. The housing has an integrally formed threaded connection hole, and one end of the connecting bolt is screwed into the threaded connection hole. The connecting bolt and the hinge are respectively arranged close to the upper and lower side walls of the housing. The hook is fixed to the vertical mounting surface and is located above the housing. One end of the chain is hooked to the hook, and one chain loop of the chain is fitted onto the connecting bolt.

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