A line-off-proof intelligent electric energy meter

Abstract

The invention relates to the technical field of electric energy meters, and discloses a line-proof intelligent electric energy meter, comprising an electric energy meter body, wherein the electric energy meter body comprises a metering analog sampling module, wherein the metering analog sampling module is connected to an electric energy meter CPU and an electric energy metering module, wherein the electric energy meter CPU is connected to an electric energy metering conversion module and a monitoring alarm module, wherein the electric energy metering conversion module is connected to the metering analog sampling module, wherein a wiring post and an expansion sheet are arranged on the side of the electric energy meter body, wherein a cable body is wound around the outside of the expansion sheet and the wiring post, wherein a line-gripping mechanism is arranged on the outside of the wiring post, wherein a first anti-reversal block is arranged on the upper end of the expansion sheet, and a second anti-reversal block is arranged on the side of the wiring post; the cable body is pulled to make the wiring post move downward, and the line-gripping mechanism prevents the cable body from falling off, and the expansion sheet expands outward to make the cable body more tightly wound around the expansion sheet, and the first anti-reversal block and the second anti-reversal block collide to prevent the wiring post from rotating in reverse, thereby making it difficult for the cable body to fall off from the electric energy meter body.

Description

Technical Field

[0001] The invention relates to the technical field of electric energy meters, in particular to a line-off-proof intelligent electric energy meter. Background Art

[0002] The electric energy meter is an instrument used to measure electric energy. The smart meter is one of the basic equipment for smart grid data collection. In addition to the basic electricity consumption metering function of the traditional electric energy meter, it also has two-way multi-rate metering function, user-side control function, two-way data communication function with multiple data transmission modes, anti-electricity theft function and other intelligent functions. The smart electric energy meter has become an important tool for monitoring and managing electricity consumption. However, there are some problems with traditional electric energy meters, such as easy to be damaged by humans and inaccurate data collection. In order to solve these problems, the line-proof smart electric energy meter came into being.

[0003] The core function of the line-proof smart energy meter is to prevent data loss or operational failure caused by the meter being disconnected from the power line through a specially designed circuit connection. It uses advanced technologies such as physical locking, data encryption and remote monitoring to effectively protect the integrity and reliability of the energy meter. Specifically, the line-proof smart energy meter has the following features: 1. Physical locking: Through a special connection method, the energy meter is firmly connected to the power line to avoid malicious damage or disassembly; 2. Data encryption: The data collected by the energy meter can be encrypted to ensure that only authorized personnel can read and decrypt the data, improving data security and privacy protection; 3. Remote monitoring: The line-proof smart energy meter has a remote monitoring function, which can transmit real-time power consumption data to the management center through wireless transmission technology, facilitating monitoring and analysis, and realizing accurate energy management; 4. High-precision measurement: Using advanced electronic measurement technology, the line-proof smart energy meter can measure power consumption in real time and accurately, providing accurate metering data.

[0004] The introduction of line-proof smart electricity meters has effectively solved the problems of traditional electricity meters being vulnerable to damage and inaccurate data, and improved the efficiency and accuracy of energy management. It can not only help users monitor and control energy consumption in real time, but also provide data support to optimize energy distribution and use and achieve the goal of sustainable energy development.

[0005] CN118275969A discloses a cable fixing auxiliary tool for the maintenance of an electric energy meter, comprising an upper cover plate and a lower cover plate symmetrically arranged up and down, wherein the upper cover plate and the lower cover plate are provided with spacer bars which are consistent with the spacing of the meter terminals, and wire grooves which match the meter terminals are provided between the spacer bars to enable synchronous removal and insertion of all wires; the inner surface of the wire groove is provided with a flexible wire clamping device which penetrates the wire groove and is used to protect and fix the wires; the upper cover plate and the lower cover plate are movably connected by a connecting assembly located at the rear ends of the upper cover plate and the lower cover plate.

[0006] CN118226368A discloses a calibration device for a smart electric energy meter, including a calibration platform and an electric measuring instrument calibrator, wherein a meter calibration positioning mechanism is arranged on the top of the calibration platform for stably clamping the smart electric energy meter, and a calibration wiring unit is arranged on the top of the calibration platform for wiring the neutral line interface and the live line interface of the smart electric energy meter and providing drive, as well as connecting the smart electric energy meter and the electric measuring instrument calibrator. After the meter calibration positioning mechanism moves the smart electric energy meter to the calibration position and clamps it, the electric telescopic cylinder is started to drive the zero-live wiring post to be plugged into the wiring hole, and the zero-live wiring stabilizing sleeve is squeezed through the zero-live wiring post to expand and squeeze and fit with the inner wall of the wiring hole, thereby stabilizing the zero-live wiring post, thereby conveniently fixing the zero-live wiring post, and there is no need to tighten the screws in the cover body by an electric screwdriver to fix the zero-live wiring post, thereby improving the calibration efficiency of the smart electric energy meter.

[0007] At present, when connecting the existing electric energy meters, it is usually necessary to strip the insulation layer at the end of the line to expose the conductive wire inside, and then wrap the conductive wire around the terminal of the electric energy meter, and tighten the screws to press the conductive wire onto the terminal. However, the screws are easy to loosen, which can easily cause the line to fall off the electric energy meter, affecting the use of the electric energy meter; therefore, it does not meet the existing needs. In this regard, we propose a line-proof smart electric energy meter. Summary of the invention

[0008] The present invention provides a line-proof intelligent electric energy meter, which has the beneficial effect of preventing the line from falling off from the electric energy meter and thus not easily affecting the use of the electric energy meter. It solves the problem mentioned in the above background technology that when connecting the existing electric energy meter, it is usually necessary to strip the insulation layer at the end of the line to expose the conductive wire inside, and then wind the conductive wire around the terminal of the electric energy meter, and tighten the screws to press the conductive wire onto the terminal, but the screws are easy to loosen, so that the line is easy to fall off from the electric energy meter, affecting the use of the electric energy meter.

[0009] The present invention provides the following technical solution: a line-proof intelligent electric energy meter, comprising an electric energy meter body, the electric energy meter body comprising a metering analog sampling module, the output end of the metering analog sampling module being connected to an electric energy meter CPU and an electric energy metering module, the output end of the electric energy meter CPU being connected to an electric energy metering conversion module, the output end of the electric energy metering conversion module being connected to the metering analog sampling module, the output end of the electric energy meter CPU being connected to a monitoring alarm module, the side of the electric energy meter body being equipped with a wire stripping mechanism, the side of the electric energy meter body being threadedly connected to a wiring pile, the side of the electric energy meter body being installed with an expansion sheet, a plurality of the expansion sheets being circumferentially arranged on the outside of the wiring pile, the expansion sheets and the outside of the wiring pile being used to wrap around a cable body, a wire clamping mechanism being slidably arranged on the outside of the wiring pile, a first anti-reversal block being arranged on the upper end of the expansion sheet, a second anti-reversal block used in conjunction with the first anti-reversal block being arranged on the side of the wiring pile, and a release component being arranged on the side of the wiring pile.

[0010] As an optional solution for a line-proof intelligent electric energy meter described in the present invention, a power supply module is arranged inside the electric energy meter body, and the power supply module supplies power to various modules of the electric energy meter body; an electric load is arranged outside the electric energy meter body, and the electric load is electrically connected to the metering analog sampling module.

[0011] As an optional solution for a line-proof intelligent electric energy meter described in the present invention, the electric energy meter CPU is used to perform calculations and processing on various data of the electric energy meter body and control the process, and the electric energy metering module communicates bidirectionally with the electric energy meter CPU. The electric energy metering module is a chip used for electric energy metering and is the core part of the electric energy meter body, which can realize accurate measurement of electric energy.

[0012] As an optional solution for a line-off-proof intelligent electric energy meter described in the present invention, the monitoring and alarm module is used to intercept communication messages between the various modules of the electric energy meter body, and the monitoring and alarm module includes a pulse indicator light, a trip indicator light and an alarm indicator light. The pulse indicator light is used to display the electric energy metering status of the electric energy meter body, the trip indicator light is used to display whether the electric energy meter body is tripped, and the alarm indicator light is used to display the alarm status of the electric energy meter body.

[0013] As an optional solution for a line-proof intelligent electric energy meter described in the present invention, the electric energy meter body also includes a data storage module, a digital display module and a digital communication module. The data storage module communicates bidirectionally with the electric energy meter CPU, the digital display module is connected to the output end of the electric energy meter CPU, and the digital display module is used to display information such as electric energy data and communication status measured by the electric energy metering module. The digital communication module is also connected to the output end of the electric energy meter CPU, and a protective cover is rotatably connected to the side of the electric energy meter body.

[0014] As an optional solution for a line-proof smart electric energy meter described in the present invention, the wire stripping mechanism includes a friction gasket embedded in the side of the electric energy meter body, and an arc knife slidably arranged on the side of the electric energy meter body and inserted in the middle of the friction gasket, a handle is installed on the outside of the arc knife, and a first spring is arranged on the inside of the electric energy meter body, one end of the first spring is connected to the arc knife, and the other end of the first spring is connected to the electric energy meter body.

[0015] As an optional solution of the line anti-detachment type intelligent electric energy meter described in the present invention, wherein: the number of the wiring piles is set to be several, and the wiring piles each include a friction part, a bolt part connected to the friction part, and an expansion part slidably sleeved on the outside of the bolt part, and the lower end of the bolt part is screwed to the side of the electric energy meter body;

[0016] The friction part is set to be cylindrical, and the surface of the friction part is rough. The expansion part is set to be conical bucket shape, and the diameter of the upper end of the expansion part is larger than the diameter of the lower end of the expansion part. A connecting block that passes through the bolt part is connected in the middle of the expansion part.

[0017] As an optional solution for a line-proof smart electric energy meter described in the present invention, the expansion sheet is configured as a conductive sheet, and the expansion sheet is electrically connected to the inside of the electric energy meter body, the number of the expansion sheets is configured as a plurality of expansion sheets, and the plurality of expansion sheets are uniformly and circumferentially arranged on the outside of the expansion portion, the expansion sheets are configured as elastic arc-shaped sheets, and the plurality of expansion sheets together form a conical bucket shape, the height of the expansion portion is greater than the height of the expansion sheet, and the maximum diameter of the expansion portion is greater than the maximum diameter of the conical bucket-shaped structure formed by the expansion sheets.

[0018] As an optional solution for a line-proof smart electric energy meter described in the present invention, the line clamping mechanism includes a support plate slidably inserted into the side of the electric energy meter body, and reverse teeth are installed on the outer side of the support plate. The number of reverse teeth is set to several, and the inclination direction of the support plate and the reverse teeth is opposite to the winding direction of the cable body. A second spring is arranged on the inner side of the electric energy meter body, one end of the second spring is connected to the support plate, and the other end of the second spring is connected to the electric energy meter body, and the second spring is in a compressed state. A baffle and a third spring are arranged on the inner side of the electric energy meter body, one end of the baffle is arranged on the lower side of the wiring post and does not contact the wiring post, and the other end of the baffle is in contact with the support plate, and the two ends of the third spring are respectively connected to the baffle and the electric energy meter body.

[0019] As an optional solution of the line anti-off type smart energy meter described in the present invention, wherein: the number of the first anti-reversal block and the second anti-reversal block is set to be a plurality, the first anti-reversal block is set to be a rectangular block, the second anti-reversal block is set to be a wedge block, a plurality of the first anti-reversal blocks are uniformly arranged at the top of the expansion piece in an annular direction, and a plurality of the second anti-reversal blocks are uniformly arranged at the bottom of the friction part in an annular direction;

[0020] The release assembly includes a screw rod rotatably inserted into the inner side of the wiring pile, a rotating block slidably sleeved on the upper end of the screw rod, a limiting block installed on the outer side of the rotating block, and a limiting groove provided on the side of the wiring pile;

[0021] The cross section of the part of the screw rod inserted in the rotating block is set to be square, the lower end of the screw rod is threadedly connected to the expansion part, the limit block and the limit groove are both set to be several and are evenly arranged in the circumferential direction, and the limit block is slidably inserted in the limit groove.

[0022] The present invention has the following beneficial effects:

[0023] 1. The line anti-dropping smart energy meter has a wire stripping mechanism that strips off the insulation layer at the end of the cable body to expose the conductive wire inside, and winds the conductive wire part of the cable body around the outside of the expansion piece, and the insulating part around the outside of the wiring pile. The cable body is pulled so that the cable body wrapped around the wiring pile drives the wiring pile to rotate and move downward at the same time. The cable body wrapped around the expansion piece is prevented from falling off by triggering the wire clamping mechanism. As the wiring pile continues to move downward, the expansion piece is squeezed from the inside by the wiring pile and expands outward, making the cable body wrapped around the outside of the expansion piece tighter. Wrapped around the expansion sheet, finally, the terminal post collides with the top of the expansion sheet, causing the expansion sheet to further expand outward. At the same time, the first anti-reversal block and the second anti-reversal block collide to prevent the terminal post from rotating in the opposite direction and loosening, thereby not allowing the cable body to fall off from the electric energy meter body easily. The limit block is pulled out of the limit groove by hand through the rotating block, and the screw rod is rotated to move the expansion part upward, reducing the expansion of the expansion sheet by the expansion part. The expansion sheet can be easily retracted by releasing the assembly, thereby loosening the cable body wrapped around the expansion sheet and facilitating the removal of the cable body from the electric energy meter body.

[0024] 2. The line anti-dropping intelligent energy meter places the end of the cable body between the friction gasket and the arc knife, and pushes the arc knife by pinching the handle. At the same time, the friction between the friction gasket and the cable body drives the cable body to roll, so that the arc knife performs a circular cut on the cable body, cutting off the insulation layer at the end of the cable body, thereby facilitating the stripping of the insulation layer at the end of the cable body.

[0025] 3. For the line anti-dropout smart energy meter, the terminal post moves downward, the third spring is compressed and the baffle is pressed downward, releasing the limiting effect of the baffle and the support plate, and the rebound force of the second spring drives the support plate close to the expansion plate, so that the reverse teeth are in contact with the cable body wound on the expansion plate, pressing the cable body tightly against the expansion plate, and the reverse teeth in the opposite direction of the winding direction of the cable body further prevent the cable body from sliding and falling off on the expansion plate, making it easy to fit the cable body and the expansion plate tightly, so that when the cable body is pulled, the cable body is not easy to fall off from the expansion plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the internal three-dimensional structure of the present invention.

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0028] Figure 3 It is a schematic diagram of the internal module structure of the present invention.

[0029] Figure 4 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0030] Figure 5It is a schematic diagram of the structure of the first state of the wiring pile of the present invention.

[0031] Figure 6 It is a schematic diagram of the structure of the second state of the wiring post of the present invention.

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of the wiring pile of the present invention.

[0033] Figure 8 It is a schematic diagram of the three-dimensional structure of the second anti-reversal block of the present invention.

[0034] Fig. 9 It is a schematic diagram of the three-dimensional structure of the wire clamping mechanism of the present invention.

[0035] Fig.10 It is a schematic diagram of the three-dimensional structure of the wire stripping mechanism of the present invention.

[0036] Fig.11 It is a schematic diagram of the enlarged structure of point A of the present invention.

[0037] Fig.12 It is a schematic diagram of the enlarged structure of point B of the present invention.

[0038] Fig.13 It is a schematic cross-sectional structure diagram of the release assembly of the present invention in the first state.

[0039] Fig.14 It is a schematic cross-sectional structure diagram of the release assembly of the present invention in the second state.

[0040] In the figure: 100, electric energy meter body; 101, protective cover; 110, wire stripping mechanism; 111, friction pad; 112, arc knife; 113, handle; 114, first spring; 120, terminal post; 121, friction part; 122, expansion part; 123, bolt part; 130, expansion piece; 140, cable body; 150, wire clamping mechanism; 151, support plate; 152, reverse tooth; 153, second spring; 154, baffle; 155, third spring; 160, first anti-reversal block; 170, second anti-reversal block, 180, release assembly; 181, screw rod; 182, rotating block; 183, limit block; 184, limit groove; 185, square block; 186, circular rotating block. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Embodiment 1: This embodiment is intended to promote the solution of the problem that when connecting the existing electric energy meter, the insulation layer at the end of the line usually needs to be stripped to expose the conductive wire inside, and then the conductive wire is wound on the terminal of the electric energy meter, and the screws are tightened to press the conductive wire on the terminal. However, the screws are easy to loosen, so that the line is easy to fall off from the electric energy meter, affecting the use of the electric energy meter. Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.11 , Fig.12 , Fig.13 and Fig.14 A line-proof intelligent electric energy meter includes an electric energy meter body 100, the electric energy meter body 100 includes a metering analog sampling module, a power module is arranged inside the electric energy meter body 100, the power module supplies power to various modules of the electric energy meter body 100, an electric load is arranged outside the electric energy meter body 100, the electric load is electrically connected to the metering analog sampling module, the output end of the metering analog sampling module is connected to the electric energy meter CPU and the electric energy metering module, the electric energy meter CPU is used to perform calculations and processing on various data of the electric energy meter body 100 and control the process, and the electric energy metering module communicates with the electric energy meter CPU in a two-way manner, the electric energy metering module is a chip used for electric energy metering, is the core part of the electric energy meter body 100, and can realize accurate measurement of electric energy.

[0043] The output end of the electric energy meter CPU is connected to an electric energy metering conversion module, and the output end of the electric energy metering conversion module is connected to the metering analog sampling module. The output end of the electric energy meter CPU is connected to a monitoring and alarm module, and the monitoring and alarm module is used to intercept communication messages between various modules of the electric energy meter body 100. The monitoring and alarm module includes a pulse indicator light, a trip indicator light and an alarm indicator light. The pulse indicator light is used to display the electric energy metering status of the electric energy meter body 100, the trip indicator light is used to display whether the electric energy meter body 100 is tripped, and the alarm indicator light is used to display the alarm status of the electric energy meter body 100.

[0044] The electric energy meter body 100 also includes a data storage module, a digital display module and a digital communication module. The data storage module communicates with the electric energy meter CPU in a two-way manner. The digital display module is connected to the output end of the electric energy meter CPU, and the digital display module is used to display information such as electric energy data and communication status measured by the electric energy metering module. The digital communication module is also connected to the output end of the electric energy meter CPU. A protective cover 101 is rotatably connected to the side of the electric energy meter body 100 to reduce the erosion of dust, rainwater, etc. on the inside of the electric energy meter body 100, and a plurality of threading holes are provided on the side of the protective cover 101 to facilitate the lines to enter the electric energy meter body 100 through the threading holes.

[0045] A wire stripping mechanism 110 is assembled on the side of the electric energy meter body 100, and a terminal post 120 is threadedly connected to the side of the electric energy meter body 100. The number of the terminal posts 120 is set to be several. The terminal posts 120 all include a friction portion 121, a bolt portion 123 connected to the friction portion 121, and an expansion portion 122 slidably sleeved on the outside of the bolt portion 123. The lower end of the bolt portion 123 is threadedly connected to the side of the electric energy meter body 100. The friction portion 121 is set to a cylindrical shape, and the surface of the friction portion 121 is rough to increase the friction force on its surface. The expansion portion 122 is set to a conical bucket shape, and the diameter of the upper end of the expansion portion 122 is larger than the diameter of the lower end of the expansion portion 122. A connecting block that passes through the bolt portion 123 is fixedly connected in the middle of the expansion portion 122, and a through groove for sliding the connecting block is opened on the side of the bolt portion 123.

[0046] An expansion sheet 130 is installed on the side of the electric energy meter body 100, and several expansion sheets 130 are circumferentially arranged on the outside of the terminal post 120. The expansion sheets 130 are set as conductive sheets, and the expansion sheets 130 are electrically connected to the inside of the electric energy meter body 100. The number of expansion sheets 130 is set to several, and several expansion sheets 130 are evenly arranged on the outside of the expansion part 122 in a circumferential direction. The expansion sheets 130 are all set to elastic arc-shaped sheets, and several expansion sheets 130 together form a conical bucket shape. The height of the expansion part 122 is greater than the height of the expansion sheet 130, and the maximum diameter of the expansion part 122 is greater than the maximum diameter of the conical bucket structure formed by the expansion sheets 130. The expansion sheets 130 and the outside of the terminal post 120 are used to wind the cable body 140, the insulation layer at the end of the cable body 140 is stripped, and the exposed conductive wire is wound around the outside of the expansion sheet 130, and the cable body 140 with an insulation layer is wound around the outside of the friction part 121 of the terminal post 120.

[0047] A wire clamping mechanism 150 is slidingly arranged on the outer side of the wiring post 120, a first anti-reversal block 160 is arranged on the upper end of the expansion piece 130, and a second anti-reversal block 170 used in conjunction with the first anti-reversal block 160 is arranged on the side of the wiring post 120. The number of the first anti-reversal block 160 and the second anti-reversal block 170 is set to be several, the first anti-reversal block 160 is set to be a rectangular block, and the second anti-reversal block 170 is set to be a wedge-shaped block. Several first anti-reversal blocks 160 are evenly arranged in an annular direction on the top of the expansion piece 130, and several second anti-reversal blocks 170 are evenly arranged in an annular direction at the bottom of the friction part 121. When the bottom end of the friction part 121 is close to the top end of the expansion piece 130, the first anti-reversal block 160 first slides and fits with the inclined surface of the second anti-reversal block 170, and then conflicts with the vertical surface of the second anti-reversal block 170.

[0048] A release assembly 180 is provided on the side of the terminal post 120, and the release assembly 180 includes a screw rod 181 rotatably plugged into the inner side of the terminal post 120, a rotating block 182 slidably sleeved on the upper end of the screw rod 181, a limiting block 183 installed on the outer side of the rotating block 182, and a limiting groove 184 provided on the side of the terminal post 120;

[0049] The cross-section of the part of the screw rod 181 inserted in the rotating block 182 is set to be square, and the lower end of the screw rod 181 is threadedly connected to the connecting block of the expansion part 122. There are several limit blocks 183 and limit grooves 184, which are evenly arranged in the circumferential direction, and the limit blocks 183 are slidably inserted in the limit grooves 184.

[0050] In this embodiment, the wire stripping mechanism 110 strips off the insulation layer at the end of the cable body 140 to expose the conductive wire inside, and winds the conductive wire part of the cable body 140 around the outside of the expansion piece 130, and the insulating part around the outside of the terminal post 120, and pulls the cable body 140 so that the cable body 140 wound on the terminal post 120 drives the terminal post 120 to rotate and move downward, and triggers the wire clamping mechanism 150 to prevent the cable body 140 wound on the expansion piece 130 from falling off, and as the terminal post 120 Continue to move downward, so that the expansion sheet 130 is squeezed from the inside by the terminal post 120 and expands outward, so that the cable body 140 wrapped around the outside of the expansion sheet 130 is more tightly wrapped around the expansion sheet 130. Finally, the terminal post 120 and the top of the expansion sheet 130 collide with each other, so that the expansion sheet 130 further expands outward, and the first anti-reversal block 160 and the second anti-reversal block 170 collide with each other, preventing the terminal post 120 from rotating in the reverse direction and loosening, so that the cable body 140 is not easily detached from the electric energy meter body 100.

[0051] In order to solve the problem that when wiring the existing electric energy meter, it is usually necessary to strip the insulation layer at the end of the line to expose the conductive wire inside, and then wrap the conductive wire around the terminal post of the electric energy meter, and tighten the screws to press the conductive wire onto the terminal post. However, the screws are easy to loosen, which can easily cause the line to fall off the electric energy meter, affecting the use of the electric energy meter. The limit block 183 is pulled out of the limit groove 184 by hand by pinching the turning block 182, and the screw rod 181 is rotated to move the expansion part 122 upward, reducing the expansion of the expansion piece 130 by the expansion part 122. The expansion piece 130 is easily retracted by releasing the assembly 180, thereby loosening the cable body 140 wrapped around the expansion piece 130, and facilitating the removal of the cable body 140 from the electric energy meter body 100.

[0052] It should be noted that a square groove is provided in the hand-kneading rotating block 182 , and a square block 185 is slidably installed in the square groove. The square block 185 is fixedly connected to the top of the screw rod 181 .

[0053] The bottom of the screw rod 181 is rotatably connected to the bolt portion 123 via a circular rotating block 186 , and a groove adapted to the circular rotating block 186 is provided in the bolt portion 123 .

[0054] Embodiment 2: This embodiment is intended to facilitate solving the problem of inconvenience in stripping the insulation layer at the end of the cable body 140. This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figure 1 , Figure 2 and Fig.10 The wire stripping mechanism 110 includes a friction gasket 111 embedded in the side of the electric energy meter body 100, and an arc knife 112 slidably arranged on the side of the electric energy meter body 100 and inserted in the middle of the friction gasket 111. The arc knife 112 is a part of a circular ring. The blade of the arc knife 112 is arranged on the inner ring, and the inner diameter of the arc knife 112 is the same as the diameter of the conductive wire in the cable body 140. A handle 113 is fixedly installed on the outside of the arc knife 112. A first spring 114 is arranged on the inside of the electric energy meter body 100. One end of the first spring 114 is fixedly connected to the arc knife 112, and the other end of the first spring 114 is fixedly connected to the electric energy meter body 100.

[0055] In this embodiment: the end of the cable body 140 is placed between the friction gasket 111 and the arc knife 112, and the handle 113 is squeezed to push the arc knife 112. At the same time, due to the friction between the friction gasket 111 and the cable body 140, the cable body 140 is driven to roll, so that the arc knife 112 performs a circular cut on the cable body 140, and cuts off the insulation layer at the end of the cable body 140, thereby facilitating the stripping of the insulation layer at the end of the cable body 140.

[0056] Embodiment 3: This embodiment is intended to solve the problem that it is not convenient to fit the cable body 140 and the expansion sheet 130 tightly together, so that when the cable body 140 is pulled, the cable body 140 is easy to fall off from the expansion sheet 130. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Fig. 9 The wire clamping mechanism 150 includes a support plate 151 slidably plugged into the side of the electric energy meter body 100, and a reverse tooth 152 is installed on the outer side of the support plate 151. The number of the reverse teeth 152 is set to be several. The inclination direction of the support plate 151 and the reverse tooth 152 is opposite to the winding direction of the cable body 140. A second spring 153 is arranged on the inner side of the electric energy meter body 100, and one end of the second spring 153 is fixedly connected to the support plate 151, and the other end of the second spring 153 is fixedly connected to the electric energy meter body 100. The second spring 153 is in a compressed state, and the potential energy of the second spring 153 in the compressed state is sufficient to drive the reverse teeth 152 on the support plate 151 to contact the cable body 140. A baffle 154 and a third spring 155 are provided on the inner side of the electric energy meter body 100. One end of the baffle 154 is provided on the lower side of the terminal post 120 and does not contact the terminal post 120. The other end of the baffle 154 contacts the support plate 151. Both ends of the third spring 155 are fixedly connected to the baffle 154 and the electric energy meter body 100, respectively.

[0057] In this embodiment: the terminal post 120 moves downward, the third spring 155 is compressed and the baffle 154 is pressed downward, releasing the limiting effect of the baffle 154 and the support plate 151, and the rebound force of the second spring 153 drives the support plate 151 to approach the expansion plate 130, so that the reverse teeth 152 are in contact with the cable body 140 wound on the expansion plate 130, pressing the cable body 140 against the expansion plate 130, and the reverse teeth 152 in the opposite direction of the winding direction of the cable body 140 further prevent the cable body 140 from sliding and falling off on the expansion plate 130, making it easy to fit the cable body 140 and the expansion plate 130 tightly, so that when the cable body 140 is pulled, the cable body 140 is not easy to fall off from the expansion plate 130.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A line-off-proof intelligent electric energy meter, comprising an electric energy meter body (100), characterized in that: The electric energy meter body (100) comprises a metering analog sampling module, the output end of the metering analog sampling module is connected to the electric energy meter CPU and the electric energy metering module, the output end of the electric energy meter CPU is connected to the electric energy metering conversion module, the output end of the electric energy metering conversion module is connected to the metering analog sampling module, the output end of the electric energy meter CPU is connected to the monitoring alarm module, the side of the electric energy meter body (100) is equipped with a wire stripping mechanism (110), the side of the electric energy meter body (100) is threadedly connected to a terminal post (120), and the side of the electric energy meter body (100) is equipped with an expansion joint. An expansion sheet (130), wherein a plurality of the expansion sheets (130) are circumferentially arranged on the outside of the wiring pile (120), the expansion sheet (130) and the outside of the wiring pile (120) are used to wrap around a cable body (140), a wire clamping mechanism (150) is slidably arranged on the outside of the wiring pile (120), a first anti-reversal block (160) is arranged on the upper end of the expansion sheet (130), a second anti-reversal block (170) used in conjunction with the first anti-reversal block (160) is arranged on the side of the wiring pile (120), and a release component (180) is arranged on the side of the wiring pile (120); A power module is provided inside the electric energy meter body (100), and the power module supplies power to various modules of the electric energy meter body (100); an electric load is provided outside the electric energy meter body (100), and the electric load is electrically connected to the measurement analog sampling module; The electric energy meter CPU is used to perform calculations and process various data on the electric energy meter body (100) and control the flow, and the electric energy metering module communicates bidirectionally with the electric energy meter CPU. The electric energy metering module is a chip used for electric energy metering and is the core part of the electric energy meter body (100), and can realize accurate measurement of electric energy.

2. The line-off-proof intelligent electric energy meter according to claim 1 is characterized in that: The monitoring and alarm module is used to monitor communication messages between various modules of the electric energy meter body (100), and the monitoring and alarm module comprises a pulse indicator light, a trip indicator light and an alarm indicator light. The pulse indicator light is used to display the electric energy metering status of the electric energy meter body (100), the trip indicator light is used to display whether the electric energy meter body (100) is tripped, and the alarm indicator light is used to display the alarm status of the electric energy meter body (100).

3. The line-off-proof smart electric energy meter according to claim 1 is characterized in that: The electric energy meter body (100) further comprises a data storage module, a digital display module and a digital communication module. The data storage module communicates bidirectionally with the electric energy meter CPU. The digital display module is connected to the output end of the electric energy meter CPU and is used to display the electric energy data and communication status information measured by the electric energy metering module. The digital communication module is also connected to the output end of the electric energy meter CPU. A protective cover (101) is rotatably connected to the side of the electric energy meter body (100).

4. The line-off-proof smart energy meter according to claim 1 is characterized in that: The wire stripping mechanism (110) comprises a friction gasket (111) embedded in the side of the electric energy meter body (100), and an arc knife (112) slidably arranged on the side of the electric energy meter body (100) and inserted in the middle of the friction gasket (111), a handle (113) is installed on the outside of the arc knife (112), and a first spring (114) is arranged on the inside of the electric energy meter body (100), one end of the first spring (114) is connected to the arc knife (112), and the other end of the first spring (114) is connected to the electric energy meter body (100).

5. The line-off-proof intelligent electric energy meter according to claim 1 is characterized in that: The number of the wiring posts (120) is set to be several, and each of the wiring posts (120) comprises a friction portion (121), a bolt portion (123) connected to the friction portion (121), and an expansion portion (122) slidably sleeved on the outside of the bolt portion (123), and the lower end of the bolt portion (123) is screwed to the side of the electric energy meter body (100); The friction part (121) is configured to be cylindrical, and the surface of the friction part (121) is rough; the expansion part (122) is configured to be conical, and the diameter of the upper end of the expansion part (122) is larger than the diameter of the lower end of the expansion part (122); and a connection block that passes through the bolt part (123) is connected in the middle of the expansion part (122).

6. The line-off-proof intelligent electric energy meter according to claim 5 is characterized in that: The expansion sheet (130) is configured as a conductive sheet, and the expansion sheet (130) is electrically connected to the inside of the electric energy meter body (100). The number of the expansion sheets (130) is configured as a plurality of sheets, and the plurality of expansion sheets (130) are uniformly arranged circumferentially on the outside of the expansion portion (122). The expansion sheets (130) are configured as elastic arc-shaped sheets, and the plurality of expansion sheets (130) together form a conical bucket shape. The height of the expansion portion (122) is greater than the height of the expansion sheet (130), and the maximum diameter of the expansion portion (122) is greater than the maximum diameter of the conical bucket-shaped structure formed by the expansion sheets (130).

7. The line-off-proof smart energy meter according to claim 1 is characterized in that: The wire clamping mechanism (150) comprises a support plate (151) slidably plugged into the side of the electric energy meter body (100); a reverse tooth (152) is installed on the outer side of the support plate (151); the number of the reverse teeth (152) is set to be several; the inclination direction of the support plate (151) and the reverse tooth (152) is opposite to the winding direction of the cable body (140); a second spring (153) is arranged on the inner side of the electric energy meter body (100); one end of the second spring (153) is connected to the support plate (151); and the second spring (153) is connected to the support plate (151). The other end of the second spring (153) is connected to the electric energy meter body (100), the second spring (153) is in a compressed state, a baffle (154) and a third spring (155) are arranged inside the electric energy meter body (100), one end of the baffle (154) is arranged at the lower side of the wiring post (120) and does not contact the wiring post (120), the other end of the baffle (154) is in contact with the support plate (151), and two ends of the third spring (155) are respectively connected to the baffle (154) and the electric energy meter body (100).

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