Quick checking instrument for reverse connection of incoming and outgoing lines of electric energy meter

Abstract

The invention relates to the technical field of electric energy meter detection, and discloses an electric energy meter incoming and outgoing line reverse connection rapid checking instrument, which comprises a detection device, a clamping mechanism arranged in a detection clamp, and a clamping mechanism arranged in the detection clamp and used for clamping the detection clamp, and the inner wall of the detection device is inserted with a connecting line which is fixedly connected with the outer wall of the detection clamp through a wire clamp. And the clamping mechanism comprises a sliding rod, a second supporting plate is fixedly connected to the outer wall of the sliding rod, a straightening mechanism is arranged on the outer wall of the second supporting plate, a first spring is fixedly connected to the outer wall of the second supporting plate, a second assembling groove is formed in the outer wall of the second supporting plate, and a clamping jaw is rotationally connected to the groove wall of the second assembling groove through a rotating shaft. The electric energy meter inlet and outlet wire is clamped through the clamping mechanism, interference signals generated by other wires are shielded, the interference signals are prevented from influencing the detection result, the wire is positioned to the center of the detection clamp, and it is ensured that the detection block stably detects the current direction of the detection wire.

Description

Technical Field

[0001] The present invention relates to the technical field of electricity meter detection, and specifically to a rapid inspection instrument for reversing the connection of the incoming and outgoing lines of an electricity meter. Background Art

[0002] As the core device for electric power metering, the wiring accuracy of an electricity meter is directly related to the accuracy of electric power data. In a large-scale power network, the number of electricity meters is huge and they are widely distributed. With the continuous expansion of the city, new commercial centers and residential communities are emerging continuously, and the scale of industrial electricity consumption is also growing day by day. Quickly and accurately determining whether the incoming and outgoing lines of the electricity meter are reversely connected to ensure the accuracy and stability of electric power metering has become a key task for the power industry to ensure the quality of power supply services and maintain the order of the power market.

[0003] The patent application with the application number CN202010972637.2 discloses a rapid inspection instrument for reversing the connection of the incoming and outgoing lines of an electricity meter, including a housing. A viewing box is fixedly installed in the middle of the rear end of the housing. A cover plate is fixedly installed jointly on the upper ends of the housing and the viewing box. Upper parts on the left and right sides of the inner cavity of the housing are both fixedly installed with baffles. An electromagnetic induction device is fixedly installed jointly between the two baffles. At least three sliding induction mechanisms are fixedly connected jointly between the two baffles and the left inner wall and the right inner wall of the inner cavity of the housing respectively. Connecting lines are arranged at the lower parts of the left end and the right end of the housing. A number of ventilation grooves penetrating inside and outside are equidistantly arranged at the rear parts of the left end and the right end of the viewing box.

[0004] However, during the working process of the existing rapid inspection instrument for reversing the connection of the incoming and outgoing lines of an electricity meter, due to the complex situation of the wires, an additional induced magnetic field will be generated, and the induced magnetic field generated when the wires are bent also affects the detection result of the current direction of the incoming and outgoing lines. Summary of the Invention

[0005] The purpose of the present invention is to provide a rapid inspection instrument for reversing the connection of the incoming and outgoing lines of an electricity meter to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A rapid inspection instrument for reversing the connection of the incoming and outgoing lines of an electricity meter, including a detection device. A connecting line is inserted into the inner wall of the detection device. The connecting line is fixedly connected to the outer wall of a detection clip through a wire clamp, and further includes: Clamping mechanism, the clamping mechanism is arranged inside the detection clamp. The clamping mechanism includes a sliding rod, and a second support plate is fixedly connected to the outer wall of the sliding rod. A straightening mechanism is arranged on the outer wall of the second support plate. A first spring is fixedly connected to the outer wall of the second support plate. An assembly groove two is opened on the outer wall of the second support plate. The groove wall of the assembly groove two is rotatably connected to a clamping jaw through a rotating shaft. An anti-slip strip one is fixedly connected to the inner wall of the clamping jaw. A detection block is fixedly connected to the inner wall of the second support plate. The clamping jaw is used for clamping the wire. The anti-slip strip one is used to prevent the clamping jaw from rotating on the outer wall of the wire. The clamping mechanism clamps the incoming and outgoing wires of the electric energy meter and shields the interference signals generated by other wires to prevent the interference signals from affecting the detection results, ensuring that the detection block can stably monitor the current direction of the detected wire. At the same time, the clamping mechanism makes the detection block fit the wire more closely to detect the current orientation, making the inspection instrument more accurate in detecting the current direction of the incoming and outgoing wires and increasing the detection efficiency of the inspection instrument for the current direction.

[0007] According to the above technical solution, a support block is fixedly connected to the inner wall of the detection clamp. An assembly groove one is opened on the outer wall of the detection clamp. The groove wall of the assembly groove one is fixedly connected to a first support plate. The first support plate is used to limit the second support plate and block the interference signal.

[0008] According to the above technical solution, the straightening mechanism includes a limiting rod. A crankshaft is hinged to the inner wall of the limiting rod. A support rod is fixedly connected to the outer wall of the crankshaft. A swing plate is rotatably connected to the outer wall of the support rod. An anti-slip strip two is fixedly connected to the inner wall of the swing plate. The limiting rod is used to drive the crankshaft to rotate. The support rod is used to support the swing plate. The swing plate is used to clamp the wire and squeeze the anti-slip strip two. The straightening mechanism clamps the wire and straightens the wire to prevent the bent wire from generating additional magnetic induction lines, which may interfere with the detection of the current direction by the inspection instrument, enabling the inspection instrument to more stably sense the magnetic induction lines and judge the current direction of the wire. At the same time, during the clamping process of the wire by the clamping mechanism and the straightening mechanism, the wire is positioned at the central part of the detection clamp, making the clamping of the wire by the detection clamp firm and preventing the detection clamp from rotating on the outer wall of the wire after clamping, which may interfere with the detection of the current direction.

[0009] According to the above technical solution, a sliding groove is opened on the outer wall of the swing plate. A limiting plate is fixedly connected to the groove wall of the sliding groove. A third support plate is fixedly connected to the outer wall of the support rod. A second spring is fixedly connected to the outer wall of the third support plate. The other end of the second spring is fixedly connected to the outer wall of the limiting plate. The limiting plate is used to limit the swing plate.

[0010] According to the above technical solution, the number of the clamping mechanisms is two groups, and the two groups of clamping mechanisms are symmetrically arranged inside the detection clamp with the center line of the detection device as the axis of symmetry. The outer wall of the clamping jaw is hinged to the wall of the first assembly groove through a rotating shaft. The detection block penetrates through the inner wall of the second support plate and is fixedly connected to one end of the connecting wire away from the detection device. The detection block detects the direction of the wire current through the magnetic induction lines generated by the current in the wire, and the second support plate is used to shield interference signals.

[0011] According to the above technical solution, the inner wall of the first support plate is slidably connected to the outer wall of the sliding rod, and the inner wall of the first support plate is fixedly connected to one end of the first spring away from the second support plate. The first support plate is used to guide the sliding rod.

[0012] According to the above technical solution, the outer wall of the limiting rod is slidably connected to the inner wall of the second support plate, and the outer wall of the crankshaft is rotatably connected to the inner wall of the support block through a bearing. The crankshaft drives the support rod to rotate through the support of the support block.

[0013] According to the above technical solution, the inner wall of the third support plate is slidably connected to the wall of the sliding groove, and the third support plate supports the limiting plate through the second spring.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. For this quick inspection instrument for reverse connection of the incoming and outgoing wires of the electric energy meter, the incoming and outgoing wires of the electric energy meter are clamped by the clamping mechanism, and the interference signals generated by other wires are shielded to prevent the interference signals from affecting the detection results, and the wires are positioned at the center of the detection clamp to ensure that the detection block can stably detect the current direction of the detected wire.

[0015] 2. For this quick inspection instrument for reverse connection of the incoming and outgoing wires of the electric energy meter, the wires are clamped and straightened by the straightening mechanism to prevent the bent wires from generating additional magnetic induction lines, which may interfere with the detection of the current direction by the inspection instrument, so that the inspection instrument can more stably sense the magnetic induction lines and judge the current direction of the wires.

[0016] 3. For this quick inspection instrument for reverse connection of the incoming and outgoing wires of the electric energy meter, during the clamping process of the wires by the clamping mechanism and the straightening mechanism, the wires are positioned at the central part of the detection clamp, so that the detection clamp firmly clamps the wires and prevents the detection clamp from rotating on the outer wall of the wires after clamping, which may interfere with the detection of the current direction.

[0017] 4. For this quick inspection instrument for reverse connection of the incoming and outgoing wires of the electric energy meter, the clamping mechanism makes the detection block more closely fit the wire to detect the current orientation, so that the inspection instrument can more accurately detect the current direction of the incoming and outgoing wires and improve the detection efficiency of the inspection instrument for the current direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Structural schematic of the present inventionFigure 1 ; Figure 2 is the structural schematic diagram of the present invention Figure 2 ; Figure 3 is the structural schematic diagram of the present invention Figure 3 ; Figure 4 is the structural schematic diagram of the clamping mechanism of the present invention Figure 1 ; Figure 5 is the structural schematic diagram of the clamping mechanism of the present invention Figure 2 ; Figure 6 is the structural schematic diagram of the clamping mechanism of the present invention Figure 3 ; Figure 7 is the structural schematic diagram of the straightening mechanism of the present invention Figure 1 ; Figure 8 is the structural schematic diagram of the straightening mechanism of the present invention Figure 2 .

[0019] In the figure: 1. Detection device; 101. Connection line; 102. Detection clamp; 103. Support block; 104. Assembly groove 1; 105. Support plate 1; 2. Clamping mechanism; 201. Sliding rod; 202. Support plate 2; 203. Spring 1; 204. Claw; 205. Detection block; 206. Anti-slip strip 1; 207. Assembly groove 2; 3. Straightening mechanism; 301. Limit rod; 302. Crankshaft; 303. Support rod; 304. Swing plate; 305. Sliding groove; 306. Support plate 3; 307. Limit plate; 308. Spring 2; 309. Anti-slip strip 2. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1. Please refer to Figures 1 - 6 , the present invention provides a technical solution: a quick inspection instrument for the reverse connection of the incoming and outgoing wires of an electric energy meter, including a detection device 1. A connection line 101 is inserted into the inner wall of the detection device 1. The connection line 101 is fixedly connected to the outer wall of the detection clamp 102 through a wire clamp. It further includes: The clamping mechanism 2 is arranged inside the detection clamp 102, and the clamping mechanism 2 includes a sliding rod 201, and the outer wall of the sliding rod 201 is fixedly connected with a supporting plate 202, and the outer wall of the supporting plate 202 is provided with a straightening mechanism 3, and the outer wall of the supporting plate 202 is fixedly connected with a spring 1 203, and the outer wall of the supporting plate 202 is provided with an assembly groove 207, and the groove wall of the assembly groove 207 is rotatably connected with a clamping claw 204 through a rotating shaft, and the inner wall of the clamping claw 204 is fixedly connected with an anti-slip strip 1 206, and the inner wall of the supporting plate 202 is fixedly connected with a detection block 205, and the clamping claw 204 is used to clamp the wire, and the anti-slip strip 1 206 is used to prevent the clamping claw 204 from rotating on the outer wall of the wire. When the quick checker for the reverse connection of the inlet and outlet lines of the electric energy meter is put into use, the wire is inserted into the detection device 1, the detection device 1 is started, and the detection clamp 102 is fixed to the outer wall of the wire. During the clamping process, the support plate 202 passes through the spring The detection block 205 is supported by the spring 1 203, so that the detection block 205 contacts the outer wall of the wire, and the support plate 202 squeezes the spring 1 203 to drive the sliding rod 201 to slide on the inner wall of the support plate 105. The clamping jaw 204 is hinged with the groove wall of the assembly groove 207 and supported by the detection clamp 102, and swings in the direction of the wire, so that the inner wall of the clamping jaw 204 contacts the outer wall of the wire and squeezes the anti-slip strip 1 206 to clamp the wire. After the clamping is completed, the friction force generated by the anti-slip strip 1 206 and the outer wall of the wire prevents the detection clamp 102 from rotating on the outer wall of the wire. At the same time, the straightening mechanism 3 contacts the outer wall of the wire, clamps the wire, and stretches the wire to straighten the wire to prevent interference signals from being generated when the wire is bent. At the same time, the wire is positioned to the center of the detection clamp 102, and the detection block 205 senses the magnetic flux generated by the wire current to judge the direction of the wire current, thereby judging whether the inlet and outlet lines of the electric energy meter are connected back; The inner wall of the detection clamp 102 is fixedly connected with a support block 103, and the outer wall of the detection clamp 102 is provided with an assembly groove 104, and the groove wall of the assembly groove 104 is fixedly connected with a support plate 105, and the support plate 105 is used to limit the support plate 202, and the support plate 105 is used to block interference signals. In the process of the detection clamp clamping the wire, the support plate 202 is supported by the spring 103 to make the detection block 205 contact with the outer wall of the wire, and the support plate 202 squeezes the spring 103 to drive the sliding rod 201 to slide on the inner wall of the support plate 105. After the clamping is completed, the magnetic rod signals generated by other wires are shielded by the support plate 105 and the support plate 202, so as to increase the accuracy of the detection block 205 in judging the current direction of the wire; There are two sets of clamping mechanisms 2, and the two sets of clamping mechanisms 2 are symmetrically arranged inside the detection clamp 102 with the center line of the detection device 1 as the axis of symmetry. The outer wall of the jaw 204 is hinged to the wall of the first assembly groove 104 through a rotating shaft. The detection block 205 penetrates the inner wall of the second support plate 202 and is fixedly connected to one end of the connection wire 101 away from the detection device 1. The detection block 205 detects the direction of the wire current through the magnetic induction lines generated by the wire current. The second support plate 202 is used to shield interference signals. After the detection clamp 102 clamps the wire, the magnetic rod signals generated by other wires are shielded by the first support plate 105 and the second support plate 202, increasing the accuracy of the detection block 205 in judging the direction of the wire current; The inner wall of the first support plate 105 is slidably connected to the outer wall of the sliding rod 201. The inner wall of the first support plate 105 is fixedly connected to one end of the first spring 203 away from the second support plate 202. The first support plate 105 is used to guide the sliding rod 201. During the clamping process, the second support plate 202 is supported by the first spring 203, so that the detection block 205 contacts the outer wall of the wire. The second support plate 202 squeezes the first spring 203 to drive the sliding rod 201 to slide on the inner wall of the first support plate 105.

[0022] Embodiment 2, based on Embodiment 1, please refer to Figures 7 - 8 , the present invention provides a technical solution: the straightening mechanism 3 includes a limiting rod 301, a crankshaft 302 is hinged to the inner wall of the limiting rod 301, a support rod 303 is fixedly connected to the outer wall of the crankshaft 302, a swing plate 304 is rotatably connected to the outer wall of the support rod 303, and an anti-slip strip two 309 is fixedly connected to the inner wall of the swing plate 304. The limiting rod 301 is used to drive the crankshaft 302 to rotate, the support rod 303 is used to support the swing plate 304, the swing plate 304 is used to clamp the wire and squeeze the anti-slip strip two 309. During the process of the detection clamp 102 clamping the wire, the outer wall of the detection block 205 contacts the outer wall of the wire, so that the second support plate 202 compresses the first spring 203 to drive the sliding rod 201 to slide on the inner wall of the first support plate 105. At the same time, the inner wall of the swing plate 304 contacts the outer wall of the wire and is supported by the support rod 303, so that the swing plate 304 squeezes the anti-slip strip two 309. Through the friction force generated by the second sliding strip and the wire, and at the same time, the second support plate 202 drives the crankshaft 302 to swing through the limiting rod 301, so that the crankshaft 302 drives the support rod 303 to rotate. The crankshaft 302 is supported by the support block 103 and limited, so that the crankshaft 302 drives the swing plate 304 to straighten the wire through the support rod 303. After the swing plate 304 contacts the wire, it drives the limiting plate 307 to squeeze the second spring 308 and rotate on the outer wall of the support rod 303. When the support rod 303 rotates, the limiting plate 307 is squeezed by the spring, so that the swing plate 304 rotates on the outer wall of the support rod 303, so that the swing plate 304 always remains parallel to the wire and positions the wire to the center of the detection clamp 102; A sliding groove 305 is formed in the outer wall of the swing plate 304. A limiting plate 307 is fixedly connected to the groove wall of the sliding groove 305. A third support plate 306 is fixedly connected to the outer wall of the support rod 303. A second spring 308 is fixedly connected to the outer wall of the third support plate 306. The other end of the second spring 308 is fixedly connected to the outer wall of the limiting plate 307. The limiting plate 307 is used to limit the swing plate 304. During the swinging process of the swing plate 304, the third support plate 306 slides on the inner wall of the sliding groove 305, and the second spring 308 supports the limiting plate 307, so that during the swinging process of the support rod 303, the swing plate 304 is kept parallel to the wire, and the swing plate 304 efficiently stretches the wire. The outer wall of the limiting rod 301 is slidably connected to the inner wall of the second support plate 202. The outer wall of the crankshaft 302 is rotatably connected to the inner wall of the support block 103 through a bearing. The crankshaft 302 drives the support rod 303 to rotate through the support of the support block 103. After the outer wall of the detection block 205 contacts the outer wall of the wire, it drives the second support plate 202 to compress the first spring 203, and drives the sliding rod 201 to slide on the inner wall of the first support plate 105. At the same time, the second support plate 202 drives the crankshaft 302 to swing through the limiting rod 301, so that the crankshaft 302 drives the swing plate 304 to straighten the wire through the support rod 303. During the process that the limiting rod 301 drives the crankshaft 302 to deflect towards the detection clip 102, the crankshaft 302 is supported by the support block 103, so that the crankshaft 302 drives the limiting rod 301 to slide on the inner wall of the second support plate 202 to compensate for the displacement generated by the crankshaft 302 during the swinging process. The inner wall of the third support plate 306 is slidably connected to the groove wall of the sliding groove 305. The third support plate 306 supports the limiting plate 307 through the second spring 308. During the process that the support rod 303 drives the swing plate 304 to stretch the wire, the swing plate 304 is supported by the support rod 303, so that the swing plate 304 drives the limiting plate 307 to compress the second spring 308 and rotate on the outer wall of the support rod 303, so that the swing plate 304 fits the outer wall of the wire. At the same time, during the swinging process of the support rod 303, the third support plate 306 supports the limiting plate 307 through the second spring 308, so that the swing plate 304 keeps clamping the wire and positions the wire to the center of the detection clip 102.

[0023] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick checker for reverse connection of input and output lines of an electric energy meter, comprising a detection device (1), wherein a connecting wire (101) is plugged into the inner wall of the detection device (1), and the connecting wire (101) is fixedly connected to the outer wall of a detection clamp (102) via a wire clamp, characterized in that: Also includes: A clamping mechanism (2), the clamping mechanism (2) being arranged inside the detection clamp (102), the clamping mechanism (2) comprising a sliding rod (201), the outer wall of the sliding rod (201) being fixedly connected to a second support plate (202), the outer wall of the second support plate (202) being provided with a straightening mechanism (3), the outer wall of the second support plate (202) being fixedly connected to a first spring (203), the outer wall of the second support plate (202) being provided with a second assembly groove (207), the groove wall of the second assembly groove (207) being rotatably connected to a clamping jaw (204) via a rotating shaft, the inner wall of the clamping jaw (204) being fixedly connected to a first anti-slip strip (206), the inner wall of the second support plate (202) being fixedly connected to a detection block (205), the clamping jaw (204) being used to clamp a wire, and the first anti-slip strip (206) being used to prevent the clamping jaw (204) from rotating on the outer wall of the wire.

2. The electric energy meter input and output line reverse connection quick checker according to claim 1 is characterized by: The inner wall of the detection clamp (102) is fixedly connected to a support block (103), the outer wall of the detection clamp (102) is provided with an assembly groove (104), the groove wall of the assembly groove (104) is fixedly connected to a support plate (105), the support plate (105) is used to limit the support plate (202), and the support plate (105) is used to block interference signals.

3. The electric energy meter input and output line reverse connection quick checker according to claim 1 is characterized by: The straightening mechanism (3) comprises a limit rod (301), the inner wall of the limit rod (301) is hingedly connected to a crankshaft (302), the outer wall of the crankshaft (302) is fixedly connected to a support rod (303), the outer wall of the support rod (303) is rotatably connected to a swing plate (304), the inner wall of the swing plate (304) is fixedly connected to a second anti-slip strip (309), the limit rod (301) is used to drive the crankshaft (302) to rotate, the support rod (303) is used to support the swing plate (304), and the swing plate (304) is used to clamp the wire and squeeze the second anti-slip strip (309).

4. The electric energy meter input and output line reverse connection quick checker according to claim 3 is characterized by: The outer wall of the swing plate (304) is provided with a sliding groove (305), the groove wall of the sliding groove (305) is fixedly connected to a limiting plate (307), the outer wall of the support rod (303) is fixedly connected to a supporting plate three (306), the outer wall of the supporting plate three (306) is fixedly connected to a spring two (308), the other end of the spring two (308) is fixedly connected to the outer wall of the limiting plate (307), and the limiting plate (307) is used to limit the swing plate (304).

5. The electric energy meter input and output line reverse connection quick checker according to claim 1 is characterized by: The clamping mechanisms (2) are provided in two groups. The two groups of clamping mechanisms (2) are symmetrically arranged inside the detection clamp (102) with the center line of the detection device (1) as the symmetry axis. The outer wall of the clamping jaw (204) is hingedly connected to the wall of the first assembly slot (104) via a rotating shaft. The detection block (205) passes through the inner wall of the second support plate (202) and is fixedly connected to an end of the connecting line (101) away from the detection device (1). The detection block (205) detects the direction of the wire current through the magnetic flux lines generated by the wire current. The second support plate (202) is used to shield interference signals.

6. The electric energy meter input and output line reverse connection quick checker according to claim 2 is characterized by: The inner wall of the support plate 1 (105) is slidably connected to the outer wall of the sliding rod (201), and the inner wall of the support plate 1 (105) is fixedly connected to an end of the spring 1 (203) away from the support plate 2 (202). The support plate 1 (105) is used to guide the sliding rod (201).

7. The electric energy meter input and output line reverse connection quick checker according to claim 3 is characterized by: The outer wall of the limit rod (301) is slidably connected to the inner wall of the second support plate (202), the outer wall of the crankshaft (302) is rotatably connected to the inner wall of the support block (103) via a bearing, and the crankshaft (302) is supported by the support block (103) to drive the support rod (303) to rotate.

8. The electric energy meter input and output line reverse connection quick checker according to claim 4 is characterized by: The inner wall of the support plate three (306) is slidably connected to the groove wall of the sliding groove (305), and the support plate three (306) supports the limit plate (307) through the spring two (308).

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