Power meter for power distribution systems

Abstract

The application relates to the technical field of power meters, in particular to a power meter convenient to install for a power distribution system, which comprises a mounting base box and a power meter shell, the inside of the mounting base box is provided with an internal connection protection device, the top of the mounting base box is provided with an electrical connection detection device, the butt joint mounting device comprises a rectangular block, a high-density connector, a butt joint thin rod, an intermediate connecting plate, a pressure detection sensor, a limiting block, a side end connecting plate, a U-shaped plate, a magnet sliding plate, a magnetic U-shaped frame, an internal butt joint mounting seat and a butt joint hole. The power meter convenient to install for the power distribution system is provided with the butt joint mounting device, the magnetic U-shaped frame and the magnet sliding plate are magnetically connected in the middle, can be magnetically locked after the position is adjusted, is convenient to lock after adjustment, can adjust the positions of the high-density connector and the butt joint thin rod according to the type, ensures that the butt joint thin rod can be correspondingly inserted into the inside of the butt joint hole to form butt joint connection after the power meter shell is inserted into the end, and ensures the connection strength.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power meter, in particular to a power meter for power distribution system convenient to install. BACKGROUND

[0002] The power distribution system is an important project of urban construction, which delivers electricity from the substation to the user's home, so that the city can operate stably. In the power distribution system, a power meter is often set to measure electric power, which includes active power, reactive power and apparent power. It is one of the important tools to ensure the safe operation of the power system. In addition, the power meter is also suitable for product testing in the fields of electric propulsion, motor, fan, water pump and wind power generation.

[0003] The prior art discloses a power meter for power distribution system convenient to install, which comprises a power meter main body, an installation base box arranged on the outer side of the power meter main body, an insertion groove arranged in the installation base box, installation pieces symmetrically arranged on the two sides of the installation base box and welded to the installation base box, a pull head arranged on the front end face of the installation base box, two pull heads symmetrically arranged above and below the power meter main body, a pull slot arranged on the front end face of the installation base box, and a top pressing plate arranged on both sides of the insertion groove in the installation base box. When the power meter main body is installed, the elastic pressing action of the top pressing plate can limit the two sides of the power meter main body, prevent the power meter main body from shaking, and improve the stability of the power meter installation. The power meter for power distribution system convenient to install can be quickly installed and disassembled, increases the flexibility and practicality of the power meter installation, and solves the problem of inconvenience in disassembly and maintenance when bolts are used for installation.

[0004] The power meter for power distribution system can fix the installation base box at the power meter installation position first, and then directly place the power meter main body in the installation base box for limiting and fixing. However, the limiting structure of the power meter for power distribution system is insufficient, the connection strength after installation is insufficient, and the practicality is poor. Therefore, it is necessary to design a power meter for power distribution system convenient to install with high practicality. SUMMARY

[0005] The present application aims to provide a power meter for power distribution system convenient to install to solve the problems in the background art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a power meter for power distribution system convenient to install, including installation base box and power meter shell, the inside of installation base box is provided with internal connection protection device, the top of installation base box is provided with electrical connection detection device, the surface of power meter shell is provided with docking installation device.

[0007] The docking installation device includes a rectangular block, a high-density connector, a docking thin rod, an intermediate connecting plate, a pressure detection sensor, a limiting block, a side end connecting plate, a U-shaped plate, a magnet slide plate, a magnetic U-shaped frame, an internal docking mounting seat, and a docking hole. The rectangular block is fixedly connected to the top of the power meter shell. The high-density connector is fixedly connected to the back of the rectangular block. The docking thin rod is fixedly connected to the back of the high-density connector. The intermediate connecting plate is fixedly connected to the inside of the high-density connector. The pressure detection sensor is fixedly connected to the inside of the intermediate connecting plate. The back of the pressure detection sensor is flush with the back of the docking thin rod. The side end connecting plate is fixedly connected to the side of the high-density connector. The limiting block is fixedly connected to the side of the side end connecting plate close to the back. The magnetic U-shaped frame is fixedly connected to the top of the U-shaped plate.

[0008] Preferably, the internal connection protection device includes an internal placing frame, a spring piece, a pressing plate, an internal connecting block, an intermediate connecting plate piece, an insertion rod, a plug-in seat, a hollow disc piece, and a twisting rod. The internal placing frame is fixedly connected to the inner walls of the installation base box. The spring piece is fixedly connected to the left inner wall of the installation base box. The pressing plate is fixedly connected to the right side of the spring piece. The internal connecting block is fixedly connected to the inside of the spring piece. The intermediate connecting plate piece is fixedly connected to the bottom of the internal connecting block. The insertion rod is fixedly connected to the left side of the intermediate connecting plate piece. The hollow disc piece is fixedly connected to the left inner wall of the installation base box.

[0009] Preferably, the electrical connection detection device comprises an electrical detection sensor, an LCD display screen, an LED indicator, a connecting wire and a control device, the electrical detection sensor is fixedly connected to the top of the installation base box, the LCD display screen is fixedly connected to the top of the electrical detection sensor, the LED indicator is fixedly connected to the top of the LCD display screen, the connecting wire is connected to the front of the electrical detection sensor, and the control device is connected to the top of the installation base box near the front face; the control device is electrically connected to the electrical detection sensor through the connecting wire, and the electrical detection sensor is arranged inside to monitor the working state and performance parameters of the lightning protection element in real time; once the lightning protection element is found to be aged or failed, the alarm system is triggered immediately to remind the user to replace the lightning protection module in time; the connecting wire and the control device serve to control the detection assembly and the alarm assembly; the LCD display screen and the LED indicator are arranged on the installation base box to display the installation state and operation steps, and a two-dimensional code or an NFC tag is provided to enable the user to access detailed installation guidelines and video tutorials through a mobile phone or a tablet computer after scanning.

[0010] Preferably, the top of the power meter shell is fixedly connected with a sliding frame, the magnet slide plate is fixedly connected to the side of the sliding frame, and the magnetic U-shaped bracket is slidingly connected to the surface of the magnet slide plate.

[0011] Preferably, the U-shaped plate is fixedly connected to the side of the limiting block near one end of the placed rectangular block, the placed rectangular block is held and then pushed backward to drive the side end connecting plate and the limiting block to move backward, the side end connecting plate slides on the surface of the sliding frame, and the U-shaped plate and the magnetic U-shaped bracket slide backward on the surface of the bottom of the magnet slide plate, and the magnetic U-shaped bracket and the magnet slide plate are magnetically connected in the middle, can be magnetically locked after adjusting the position, convenient for locking after adjustment, can adjust the position of the high-density connector and the butt fine rod according to the model, and ensure that the butt fine rod can be inserted into the butt hole to form butt connection after the power meter shell is inserted into the end, and ensure the connection strength.

[0012] Preferably, the right side of the inner placing frame is provided with a rectangular through slot, the area of the side of the pressing plate is adapted to the area of the rectangular through slot, and the pressing plate is slidingly connected to the right side of the inner placing frame; the rectangular through slot can extend the pressing plate out of the right side of the inner placing frame, the pressing plate moves to the right, moves a small distance and then is pressed against the left and right sides of the power meter shell to be fixed in position, thereby assisting locking after insertion and increasing the strength of placement.

[0013] Preferably, the surface of the hollow disc part is fixedly connected with a magnetic ring part, the surface of the twisting rod is connected with a magnet disc, the diameter of the magnet disc is matched with the inner diameter of the magnetic ring part, the magnet disc is slidingly connected in the inner part of the magnetic ring part, the magnet disc is magnetically connected with the magnetic ring part, the magnet disc and the magnetic ring part are arranged to be locked after insertion, the insertion seat can be fixedly positioned after insertion, and the locked state can be maintained when the spring needs to be compressed.

[0014] Preferably, the surface of the insertion seat is provided with a butt joint socket slot, the diameter of the butt joint socket slot is matched with the diameter of the twisting rod, the twisting rod is insertedly connected with the surface of the hollow disc part, the insertion seat is inserted in the inner part of the hollow disc part, the user can pull out the twisting rod to make the limiting effect of the twisting rod on the insertion seat disappear, the insertion seat can be pulled to the right and separated from the hollow disc part, so that the compression effect on the spring part also disappears at this time, the compression and limiting assembly can be opened, and then the clamping of the pressing plate is utilized.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] 1. The power meter for power distribution system convenient to install, the magnetic attraction U-shaped frame and the magnet slide plate are magnetically connected in the middle, the position can be magnetically locked after adjustment, the locking after adjustment is convenient, the positions of the high-density connector and the butt joint thin rod can be adjusted according to the type, and it is ensured that the butt joint thin rod can be correspondingly inserted into the inner part of the butt joint hole to form butt joint connection after the power meter shell is inserted into the end, and the connection strength is ensured.

[0017] 2. The power meter for power distribution system convenient to install, the inner connection protection device is arranged, the inner connection protection device is further locked after insertion and installation, so that the connection strength is increased, the spring part is compressed by the inner connecting block and the middle connecting plate during installation, so that the right side of the pressing plate is attached to the right side of the inner placing frame, and the power meter shell can be inserted into the inner part of the installation base box without forming an obstacle.

[0018] 3. The power meter for power distribution system convenient to install, the electrical connection detection device is arranged, the LCD display screen and the LED indicator lamp are arranged on the installation base box, the installation state and the operation steps are displayed, meanwhile, a two-dimensional code or an NFC label is provided, the user can access detailed installation guide and video tutorial through a mobile phone or a tablet computer after scanning, the electrical detection sensor is arranged, the working state and the performance parameter of the lightning protection element are monitored in real time, once the lightning protection element is found to be aged or failed, the alarm system is triggered immediately, the user is reminded to replace the lightning protection module in time, the connection wire and the control equipment play the roles of the control detection assembly and the alarm assembly.

[0019] 4. The power meter for the power distribution system convenient to install, the inner connecting protection device and the butt joint installation device are used in cooperation, and are used for installing and fixing the power meter shell, after the user inserts the power meter shell, the user can pull out the rotating rod, the limiting effect of the rotating rod to the insertion seat disappears, the compression effect of the spring piece also disappears, the spring piece can be stretched to drive the pressing plate to move to the right, moves a small distance and then is compressed on the left and right sides of the power meter shell, and is limited and fixed, thereby assisting locking after insertion, increasing the strength of placement, and increasing the stability of the power meter shell after installation BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a schematic diagram of the overall perspective view structure of the present application.

[0022] Figure 2 It is a schematic diagram of the overall perspective view structure of the present application. Figure 1 It is a schematic diagram of the enlarged structure at A in the present application.

[0023] Figure 3 It is a schematic diagram of the overall perspective view structure of the present application.

[0024] Figure 4 It is a schematic diagram of the overall perspective view structure of the present application. Figure 3 It is a schematic diagram of the enlarged structure at B in the present application.

[0025] Figure 5 It is a schematic diagram of the overall perspective view structure of the present application. Figure 3 It is a schematic diagram of the enlarged structure at C in the present application.

[0026] Figure 6 It is a schematic diagram of the overall perspective view structure of the present application.

[0027] Figure 7 It is a schematic diagram of the overall perspective view structure of the present application.

[0028] Figure 8 It is a schematic diagram of the overall perspective view structure of the present application. Figure 7 It is a schematic diagram of the enlarged structure at D in the present application.

[0029] As shown in the figure, 1 is a mounting base box, 2 is a docking mounting device, 201 is a rectangular block, 202 is a high-density connector, 203 is a docking thin rod, 204 is a middle connecting plate, 205 is a pressure detection sensor, 206 is a limiting block, 207 is a side end connecting plate, 208 is a U-shaped plate, 209 is a magnet sliding plate, 210 is a magnetic U-shaped frame, 211 is an inner docking mounting seat, 212 is a docking hole, 3 is an electrical connection detection device, 301 is an electrical detection sensor, 302 is an LCD display screen, 303 is an LED indicator light, 304 is a connecting wire, 305 is a control device, 4 is an inner connecting protection device, 401 is an inner placing rack, 402 is a spring piece, 403 is a pressing plate, 404 is an inner connecting block, 405 is a middle connecting plate piece, 406 is an insertion rod, 407 is an insertion seat, 408 is a hollow disc piece, 409 is a twisting rod, and 5 is a power meter shell. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with 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 of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0032] Please refer to Figures 1-8 The present application provides the following technical solutions:

[0033] A power meter for power distribution system convenient to install, comprising a mounting base box 1 and a power meter shell 5, the inner part of the mounting base box 1 is provided with an inner connecting protection device 4, the top of the mounting base box 1 is provided with an electrical connection detection device 3, and the surface of the power meter shell 5 is provided with a docking mounting device 2.

[0034] The docking installation device 2 comprises a rectangular block 201, a high-density connector 202, a docking thin rod 203, an intermediate connecting plate 204, a pressure detection sensor 205, a limiting block 206, a side end connecting plate 207, a U-shaped plate 208, a magnet sliding plate 209, a magnetic U-shaped frame 210, an inner docking mounting seat 211, and a docking hole 212. The rectangular block 201 is fixedly connected to the top of the power meter shell 5. The high-density connector 202 is fixedly connected to the back of the rectangular block 201. The docking thin rod 203 is fixedly connected to the back of the high-density connector 202. The intermediate connecting plate 204 is fixedly connected to the inside of the high-density connector 202. The pressure detection sensor 205 is fixedly connected to the inside of the intermediate connecting plate 204. The back of the pressure detection sensor 205 is flush with the back of the docking thin rod 203. The side end connecting plate 207 is fixedly connected to the side of the high-density connector 202. The limiting block 206 is fixedly connected to the side of the side end connecting plate 207 close to the back. The magnetic U-shaped frame 210 is fixedly connected to the top of the U-shaped plate 208. The top of the power meter shell 5 is fixedly connected with a sliding frame. The magnet sliding plate 209 is fixedly connected to the side of the sliding frame. The magnetic U-shaped frame 210 is slidingly connected to the surface of the magnet sliding plate 209. The U-shaped plate 208 is fixedly connected to the side of the limiting block 206 close to one end of the rectangular block 201. The rectangular block 201 is held and then pushed backward, driving the side end connecting plate 207 and the limiting block 206 to move backward. The side end connecting plate 207 slides on the surface of the sliding frame. The U-shaped plate 208 and the magnetic U-shaped frame 210 slide backward on the surface of the bottom of the magnet sliding plate 209. The magnetic U-shaped frame 210 and the magnet sliding plate 209 are magnetically connected in the middle. After adjusting the position, it can be magnetically locked, which is convenient for locking after adjustment. The positions of the high-density connector 202 and the docking thin rod 203 can be adjusted according to the model, ensuring that the docking thin rod 203 can be inserted into the inside of the docking hole 212 to form a docking connection after the power meter shell 5 is inserted into the end, ensuring the connection strength.

[0035] The inner connection protection device 4 comprises an inner placing rack 401, a spring piece 402, a pressing plate 403, an inner connecting block 404, an intermediate connecting plate piece 405, an insertion rod 406, a plug-in seat 407, a hollow disc piece 408 and a twisting rod 409. The inner placing rack 401 is fixedly connected to the inner walls of the installation base box 1. The spring piece 402 is fixedly connected to the left inner wall of the installation base box 1. The pressing plate 403 is fixedly connected to the right side of the spring piece 402. The inner connecting block 404 is fixedly connected to the inner middle end of the spring piece 402. The intermediate connecting plate piece 405 is fixedly connected to the bottom of the upper inner connecting block 404. The insertion rod 406 is fixedly connected to the left side of the intermediate connecting plate piece 405. The hollow disc piece 408 is fixedly connected to the left inner wall of the installation base box 1. The surface of the plug-in seat 407 is provided with a butt joint jack groove. The diameter of the butt joint jack groove is adapted to the rod diameter of the twisting rod 409. The twisting rod 409 is plug-in connected to the surface of the hollow disc piece 408. The plug-in seat 407 is plug-in connected to the inside of the hollow disc piece 408. The user can pull out the twisting rod 409 to make the limiting effect of the twisting rod 409 on the plug-in seat 407 disappear. The plug-in seat 407 can be pulled to the right to separate from the hollow disc piece 408, so that the pressing effect on the spring piece 402 also disappears at this time, and the pressing limiting assembly can be opened. Then clamping is performed by using the pressing plate 403. The right side of the inner placing rack 401 is provided with a rectangular through groove. The area of the side of the pressing plate 403 is adapted to the area of the rectangular through groove. The pressing plate 403 is slidingly connected to the right side of the inner placing rack 401. The setting of the rectangular through groove can make the pressing plate 403 extend out of the right side of the inner placing rack 401. The pressing plate 403 moves to the right, moves a small distance and then is pressed against the left and right sides of the power meter shell 5 to be limited and fixed, so as to assist in locking after insertion, increase the strength of placement, the surface of the hollow disc piece 408 is fixedly connected with a magnetic ring piece, the surface of the twisting rod 409 is connected with a magnet disc, the diameter of the magnet disc is adapted to the inner diameter of the magnetic ring piece, the magnet disc is slidingly connected to the inside of the magnetic ring piece, the magnet disc is magnetically connected to the magnetic ring piece, the setting of the magnet disc and the magnetic ring piece can lock after insertion, the plug-in seat 407 can be limited and fixed after insertion, and the locking state can be maintained when the spring piece 402 needs to be pressed.

[0036] The electrical connection detection device 3 comprises an electrical detection sensor 301, an LCD display screen 302, an LED indicator lamp 303, a connecting wire 304 and a control device 305. The electrical detection sensor 301 is fixedly connected to the top of the installation base box 1. The LCD display screen 302 is fixedly connected to the top of the electrical detection sensor 301. The LED indicator lamp 303 is fixedly connected to the top of the LCD display screen 302. The connecting wire 304 is connected to the front of the electrical detection sensor 301. The control device 305 is connected to the top of the installation base box 1 near the front. The control device 305 is electrically connected to the electrical detection sensor 301 through the connecting wire 304.

[0037] In use, the power meter shell 5 is docked and installed in the installation base box 1 using the docking installation device 2. During installation, the bottom of the power meter shell 5 is attached to the top end of the inner wall of the installation base box 1. Then, at the upper end, the leftmost high-density connector 202 and the docking thin rod 203 are aligned with the leftmost docking hole 212 in the inner docking mounting seat 211. After alignment, the right docking thin rod 203 and the high-density connector 202 are aligned with the docking holes 212 in the inner docking mounting seat 211. Then, the power meter shell 5 can be inserted into the installation base box 1 and pushed inward until the docking thin rod 203 is inserted into the docking hole 212 to form a docking installation. The device can adjust the position of the docking connection according to the thickness of the power meter shell 5. When installing a power meter shell 5 with small thickness, the side end connecting plate 207 and the position of the rectangular block 201 need to be pushed backward. During adjustment, the rectangular block 201 can be held and then pushed backward, which moves the side end connecting plate 207 and the limiting block 206 backward. The side end connecting plate 207 slides along the surface of the slide, and the U-shaped plate 208 and the magnetic U-shaped frame 210 slide backward along the surface of the magnet slide plate 209. The magnetic U-shaped frame 210 and the magnet slide plate 209 are magnetically connected in the middle, and can be magnetically locked after adjusting the position. The locking after adjustment is convenient, and the positions of the high-density connector 202 and the docking thin rod 203 can be adjusted according to the model to ensure that the docking thin rod 203 can be inserted into the docking hole 212 to form a docking connection after the power meter shell 5 is inserted into the end. The connection strength is ensured. The inner connection protection device 4 is arranged in the installation base box 1. After insertion and installation, the inner connection protection device 4 is further locked to increase the connection strength. During installation, the spring member 402 is compressed by the inner connecting block 404 and the intermediate connecting plate member 405, so that the right side of the pressing plate 403 is attached to the right side of the inner placing frame 401. The power meter shell 5 can be inserted into the installation base box 1 without forming an obstacle. After the user inserts the power meter shell 5, the user can pull out the twisting rod 409 to make the limiting effect of the twisting rod 409 on the insertion seat 407 disappear. The insertion seat 407 can be pulled to the right and separated from the hollow disc member 408. At this time, the compression effect of the spring member 402 also disappears. The spring member 402 can be stretched to move the pressing plate 403 to the right. After moving a small distance, the pressing plate 403 is compressed on the left and right sides of the power meter shell 5 for limiting and fixing. After insertion, the locking is assisted to increase the placing strength, the stability of the power meter shell 5 after installation is increased, the use effect is good, and the electrical connection detection device 3 is arranged at the top of the installation base box 1. The LCD display screen 302 and the LED indicator light 303 are arranged on the installation base box 1 to display the installation status and operation steps. At the same time, a two-dimensional code or an NFC tag is provided. After scanning, the user can access detailed installation guidelines and video tutorials through a mobile phone or a tablet computer. The electrical detection sensor 301 is arranged to monitor the working state and performance parameters of the lightning protection element in real time.Once the lightning protection element is found to be aged or failed, the alarm system is triggered to remind the user to replace the lightning protection module in time. The connecting wire 304 and the control device 305 play a role in controlling the detection assembly and the alarm assembly.

[0038] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0039] While the embodiments of the application have been shown and described, it is to be understood that the embodiments proposed are only by way of example and are not to be construed in a limiting sense, but the scope of the present application should be gauged in terms of the appended claims and their equivalents.

Claims

1. A power meter for electricity distribution systems, which is easy to install, comprising an installation base box (1) and a power meter housing (5), characterized in that: The inside of the installation base box (1) is provided with an internal connection protection device (4), the top of the installation base box (1) is provided with an electrical connection detection device (3), and the surface of the power meter shell (5) is provided with a docking installation device (2); The docking installation device (2) includes a rectangular block (201), a high-density connector (202), a docking thin rod (203), an intermediate connecting plate (204), a pressure detection sensor (205), a limiting block (206), a side end connecting plate (207), a U-shaped plate (208), a magnet sliding plate (209), a magnetic U-shaped frame (210), an internal docking mounting seat (211) and a docking hole (212), the rectangular block (201) is fixedly connected to the top of the power meter shell (5), the high-density connector (202) is fixedly connected to the back of the rectangular block (201), the docking thin rod (203) is fixedly connected to the back of the high-density connector (202), the intermediate connecting plate (204) is fixedly connected to the inside of the high-density connector (202), the pressure detection sensor (205) is fixedly connected to the inside of the intermediate connecting plate (204), the back of the pressure detection sensor (205) is flush with the back of the docking thin rod (203), the side end connecting plate (207) is fixedly connected to the side of the high-density connector (202), the limiting block (206) is fixedly connected to the side of the side end connecting plate (207) close to the back, and the magnetic U-shaped frame (210) is fixedly connected to the top of the U-shaped plate (208); The electrical connection detection device (3) includes an electrical detection sensor (301), an LCD display screen (302), an LED indicator (303), a connecting wire (304) and a control device (305), the electrical detection sensor (301) is fixedly connected to the top of the installation base box (1), the LCD display screen (302) is fixedly connected to the top of the electrical detection sensor (301), the LED indicator (303) is fixedly connected to the top of the LCD display screen (302), the connecting wire (304) is connected to the front of the electrical detection sensor (301), and the control device (305) is connected to the top of the installation base box (1) close to the front. The control device (305) is electrically connected to the electrical detection sensor (301) through the connecting wire (304). The inner connection protection device (4) comprises an inner placing rack (401), a spring piece (402), a pressing plate (403), an inner connecting block (404), an intermediate connecting plate piece (405), an insertion rod (406), an insertion seat (407), a hollow disc piece (408) and a twisting rod (409), the inner placing rack (401) is fixedly connected to the inner walls of the installation base box (1), the spring piece (402) is fixedly connected to the left inner wall of the installation base box (1), the pressing plate (403) is fixedly connected to the right side of the spring piece (402), the inner connecting block (404) is fixedly connected to the inner middle end of the spring piece (402), the intermediate connecting plate piece (405) is fixedly connected to the bottom of the upper end of the inner connecting block (404), the insertion rod (406) is fixedly connected to the left side of the intermediate connecting plate piece (405), and the hollow disc piece (408) is fixedly connected to the left inner wall of the installation base box (1).

2. A power meter for use in a power distribution system that facilitates installation according to claim 1, wherein: The top of the power table shell (5) is fixedly connected with a sliding frame, the magnet sliding plate (209) is fixedly connected to the side surface of the sliding frame, and the magnetic U-shaped frame (210) is slidingly connected to the surface of the magnet sliding plate (209).

3. A power meter for use in a power distribution system that facilitates installation according to claim 1, wherein: The U-shaped plate (208) is fixedly connected to the side surface of the limiting block (206) close to one end of the placed rectangular block (201).

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