Electric leakage detector for electric power meter

Abstract

The invention relates to the field of electric power testing, and discloses an electric power meter electric leakage detector, which is characterized by comprising a detection platform; the upper detection strip and the lower detection strip are arranged at the top of the detection platform, arc-shaped openings are formed in the upper detection strip and the lower detection strip, and arc-shaped magnetic strips are arranged in the arc-shaped openings; the top opening is formed in the top of the detection platform, and a bearing plate is arranged in the top opening; the splicing structure with the arc-shaped opening not only can guide the cable to vertically enter a detection position, but also can overcome the friction force of the cable sheath under the action of vibration force, so as to realize closer attachment. And secondly, the bearing plate can automatically avoid in the moving process of the upper detection strip and the lower detection strip, so that the cable is gradually converted from a supporting state to an erecting state, the external interference is reduced, and the independence and the stability of the cable in a magnetic induction area are ensured. According to the structure, the signal crosstalk between the cables is obviously reduced, and the stability and the accuracy of the detection process are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power testing, and in particular to an electric power meter leakage detector. Background Art

[0002] With the continuous development of power systems, power meters are increasingly used for energy metering, load monitoring, and energy efficiency management. However, in complex power distribution networks, leakage can occur in the lines connected to power meters due to aging, insulation damage, or poor grounding. This not only affects the accuracy of energy measurement but also poses the risk of electric shock and equipment damage. Therefore, timely and accurate detection and location of leakage faults are crucial.

[0003] Currently, the most widely used leakage detection method relies on magnetic rings (current transformers). The basic principle is to use the magnetic rings to sense the leakage current flowing through the line and convert it into a voltage signal for analysis. When leakage current exists in the line, the induced voltage generated by the magnetic rings will increase significantly, which can be used to determine the leakage status. However, this traditional leakage detection method has some shortcomings in practical applications: Traditional magnetic ring detection methods can usually only detect a single line. When multiple lines are connected to the power meter, they need to be tested one by one, which not only increases the detection time but also makes it difficult to achieve synchronous leakage detection of multiple lines. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides an electric power meter leakage detector, which aims to alleviate the above-mentioned problems at least to a certain extent.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A power meter leakage detector, comprising: Testing platform; An upper detection bar and a lower detection bar are provided on the top of the detection platform, wherein the upper detection bar and the lower detection bar are provided with arc-shaped openings, and arc-shaped magnetic strips are provided in the arc-shaped openings; A top opening is provided on the top of the detection platform, wherein a supporting plate is provided in the top opening; Two positioning plates are provided on the detection platform, and the positioning plates are slidably provided on the detection platform; A partition member provided between the upper detection bar and the lower detection bar, used to move the position of the upper detection bar up and down and vibrate the lower detection bar so that the circuits are distributed in the arc-shaped openings on the lower detection bar; A detection component provided on the detection platform, used to move the upper detection bar and the lower detection bar along the detection platform, wherein the upper detection bar and the lower detection bar can move the support plate when the upper detection bar and the lower detection bar are displaced, and the support plate moves to avoid the upper detection bar and the lower detection bar; The detection component can also move the positions of the two positioning plates so that the two positioning plates move closer to each other.

[0006] Preferably, the detection component includes a connecting rod slidably connected to the detection platform, a screw a is rotatably connected to the connecting rod, the upper detection bar is slidably connected to the connecting rod and threadedly engaged with the screw a, the bottom of the connecting rod is connected to a motor a, and the drive shaft of the motor a is connected to the screw a.

[0007] Preferably, the lead screw a is connected to a guide cylinder, the outer wall of the guide cylinder is provided with a guide opening, the side wall of the lower detection bar is connected to a top touch rod, the connecting rod is slidably connected to a connecting frame, one end of the connecting frame is connected to a top touch block that contacts the top touch rod, and the other end is inserted into the guide opening, the side wall of the connecting rod is connected to a limit rod that is slidably connected to the lower detection bar, and a spring a is connected between the limit rod and the lower detection bar.

[0008] Preferably, two surfaces of the upper detection strip and the lower detection strip that are close to each other are rotatably connected to a plurality of rollers.

[0009] Preferably, a connecting block a is slidably connected to the connecting rod, and the connecting block a cooperates with the screw a. The side wall of the upper detection bar is connected to a connecting block b that is rotatably connected to the connecting block a. The connecting block a is connected to a motor b, and the drive shaft of the motor b passes through the connecting block a and is fixed to the connecting block b.

[0010] Preferably, a lead screw b is rotatably connected to the detection platform, the connecting rod is threadedly engaged with the lead screw b, a motor c is connected to the detection platform, and a drive shaft of the motor c is connected to the lead screw b.

[0011] Preferably, the support plate is slidably connected to the top opening and is connected to the detection platform by a spring b. The bottom of the support plate is connected to a support rod, which passes through the detection platform and extends to the top of the detection platform and is connected to a pressure rod. The pressure rod is provided with an oblique section opening, and a straight section opening is provided at the end of the oblique section opening. The side wall of the connecting rod is connected to a guide rod inserted into the oblique section opening.

[0012] Preferably, a connecting opening is provided on the detection platform, the positioning plate is slidably connected in the connecting opening, the side wall of the pressure rod is connected with a connecting rod, and extends between the positioning plate and the two positioning plates, and a hinged rod is rotatably connected on the positioning plate, and the other end of the hinged rod is rotatably connected to the connecting rod, and a spring c is connected between the positioning plate and the detection platform.

[0013] In summary, the present invention mainly has the following beneficial effects: Through the above arrangement, the present invention can achieve higher efficiency and accuracy in the process of power meter line arrangement and leakage detection.

[0014] First, the clamping structure of the upper and lower test strips effectively reduces misalignment and crossing of cables during the initial alignment process. The arc-shaped opening not only guides the cable vertically into the test position, but also overcomes the friction of the cable sheath under the action of vibration, achieving a tighter fit.

[0015] Secondly, the support plate automatically moves out of the way as the upper and lower detection bars move, gradually transitioning the cables from a supported state to a "braced" state. This reduces external interference and ensures the cables' independence and stability within the magnetic sensing area. This structure significantly reduces signal crosstalk between cables, ensuring stable and accurate detection.

[0016] At the same time, the synchronous approach of the positioning plates further reduces the lateral displacement of the line, ensuring that the line is always in the correct position during the detection process, thereby improving the overall detection efficiency.

[0017] In summary, the present application can organize and detect leakage on multiple lines at the same time, solving the problem that the traditional magnetic ring detection method can only detect a single line one by one. It not only improves the detection efficiency, but also can realize synchronous leakage detection of multiple lines, significantly reducing the detection time and improving the reliability of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is another schematic diagram of the overall structure of the present invention; Figure 3 is another schematic diagram of the overall structure of the present invention; Figure 4 It is a schematic diagram of the connecting rod structure of the present invention; Figure 5 2 is a schematic structural diagram of the lower detection strip of the present invention; Figure 6 It is a schematic structural diagram of the guide cylinder of the present invention; Figure 7 is another schematic diagram of the guide cylinder structure of the present invention; Figure 8 It is a schematic structural diagram of the connecting block a and the connecting block b of the present invention; Figure 9 It is a schematic structural diagram of the positioning plate of the present invention.

[0019] Reference numerals: 100, detection platform; 101, upper detection strip; 102, lower detection strip; 103, arc-shaped opening; 104, arc-shaped magnetic strip; 105, top opening; 106, support plate; 107, positioning plate; 200, connecting rod; 201, lead screw a; 202, motor a; 203, guide cylinder; 204, guide opening; 205, top contact rod; 206, connecting frame; 207, top contact block; 208, limit rod; 209, spring a; 210, roller shaft; 300, connecting block a; 301, connecting block b; 302, motor b; 303, lead screw b; 304, motor c; 400, spring b; 401, support rod; 402, pressure rod; 403, oblique section opening; 404, straight section opening; 405, guide rod; 500, connecting opening; 501, connecting rod; 502, hinged rod; 503, spring c. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0021] refer to Figures 1-9 , an electric power meter leakage detector, comprising: Detection platform 100; An upper detection bar 101 and a lower detection bar 102 are provided on the top of the detection platform 100, with a preset distance between them. An arc-shaped opening 103 is formed on each of the upper detection bar 101 and the lower detection bar 102. Two upper and lower adjacent arc-shaped openings 103 can be spliced together to form a circular opening to accommodate the cable line of the power meter. An arc-shaped magnetic strip 104 is provided in the arc-shaped opening 103. Two upper and lower adjacent arc-shaped magnetic strips 104 can be spliced together to form a circular magnetic strip. A top opening 105 is formed on the top of the detection platform 100 , and a supporting plate 106 is disposed in the top opening 105 ; Two positioning plates 107 are provided on the detection platform 100 , and the positioning plates 107 are slidably provided on the detection platform 100 ; A partition member provided between the upper detection bar 101 and the lower detection bar 102 is used to move the upper detection bar 101 up and down and vibrate the lower detection bar 102 so that the circuits are distributed in the arc-shaped openings 103 on the lower detection bar 102; The detection component provided on the detection platform 100 is used to move the upper detection bar 101 and the lower detection bar 102 along the detection platform 100. When the upper detection bar 101 and the lower detection bar 102 are displaced, the support plate 106 is moved to avoid the upper detection bar 101 and the lower detection bar 102. The detection component can also move the positions of the two positioning plates 107 so that the two positioning plates 107 move closer to each other; With the above arrangement, during operation, a transfer device such as a manipulator can be used to place the power meter onto the testing platform 100, positioned between the two positioning plates 107. The circuits on the meter are supported by the support plate 106, and the circuits pass through the lower testing bar 102. At this point, a preset spacing exists between the upper testing bar 101 and the lower testing bar 102, and the arc-shaped openings 103 on the upper and lower testing bars 102 are aligned opposite each other, forming multiple circuit channels to be tested. As the testing process begins, the partitioning component begins to move the upper testing bar 101 downward, while simultaneously vibrating the lower testing bar 102, causing the circuits to gradually slide into the arc-shaped openings 103 on the lower testing bar 102 under the dual effects of gravity and vibration. In the case of a large number of circuits, due to friction from the cable sheaths and slight adhesion between the cables, some cables may not yet fully enter the arc-shaped openings 103 of the lower testing bar 102. When the upper testing bar 101 moves downward until it contacts the circuits, the circuits are further compressed, forming a preliminary clamping structure between the upper and lower testing bars 102. At this point, the continued vibration of the lower detection bar 102 begins to produce a more significant alignment effect on the circuit.

[0022] This clamping state greatly reduces the lateral freedom of the cable, forcing the line to sink further under the action of gravity. At the same time, since the arc-shaped opening 103 between the upper and lower detection strips 102 can form a complete circular channel, this structure not only guides the cable to slide more accurately into the arc-shaped opening 103 in the lower detection strip 102 in the vertical direction, but also uses the squeezing force of the upper and lower detection strips 102 to effectively eliminate the misalignment and crossing between the cables caused by electrostatic adsorption or surface adhesion. The vibration of the lower detection strip 102 becomes more effective at this stage. Since the cable is already in the initial clamping state of the upper and lower detection strips 102 at this stage, its freedom of movement is greatly reduced, so the vibration transmission efficiency is significantly improved. This vibration force can not only overcome the friction resistance of the cable sheath, but also produce subtle radial swings, further pushing the cable into the arc-shaped opening 103 step by step, achieving a tighter fit.

[0023] The detection component begins to drive the upper and lower detection bars 102 to move along the detection platform 100. As the upper and lower detection bars 102 move, the support plate 106 automatically moves out of the way. As the support plate 106 moves out of the way, the clamping structure of the upper and lower detection bars 102 allows the cables to be suspended in the arc-shaped opening 103, forming a "shelf"-like state. This fully exposes the cable, reduces external interference, and allows the cable to be more stably positioned within the sensing area of the arc-shaped magnetic strip 104 during the detection process. This "shelf" line structure not only ensures the spatial independence of the cables and reduces interference between adjacent lines, but also effectively prevents signal crosstalk caused by cables squeezing each other.

[0024] During the movement of the upper and lower detection bars 102, the positioning plates 107 begin to move inward synchronously at this stage, providing necessary limiting support for the power meter, preventing the line from sliding during the clamping process, and further ensuring that the cables can accurately enter their respective detection positions.

[0025] After the main body of the power meter is clamped and positioned, the upper and lower detection strips 102 continue to slide along the direction of the detection platform 100, entering the line arrangement and leakage detection stage. At this time, as the detection strips advance, the cables are further straightened and smoothed under the clamping action of the upper and lower detection strips 102. Since the arrangement of the lines in the arc-shaped opening 103 is already basically stable, this sliding can not only effectively eliminate the bending and twisting in the lines, but also further reduce the lateral displacement between the cables, ensuring that each cable can fit tightly with the arc-shaped magnetic strip 104 to form a complete electromagnetic induction loop. During this process, the arc-shaped magnetic strip 104 begins to perform leakage detection on the cables. As the upper and lower detection strips 102 slide to the detection end point, all cables have been stably "mounted" between the arc-shaped magnetic strips 104, completing the straightening and detection process. This structure can not only effectively improve the arrangement efficiency of the cables, but also significantly improve the sensing accuracy of the leakage signal, providing high-quality basic data for subsequent signal processing and fault analysis.

[0026] As a further solution of the present invention, the detection component includes a connecting rod 200 slidably connected to the detection platform 100, a lead screw a201 is rotatably connected to the connecting rod 200, the upper detection bar 101 is slidably connected to the connecting rod 200 and threadedly engaged with the lead screw a201, a motor a202 is connected to the bottom of the connecting rod 200, and a drive shaft of the motor a202 is connected to the lead screw a201; With the above arrangement, when motor a202 is started, its drive shaft rotates screw a201. Because upper detection bar 101 is slidably connected to connecting rod 200 and threadedly engaged with screw a201, as screw a201 rotates, the relative displacement between the threaded pairs propels upper detection bar 101 to move smoothly along connecting rod 200. During this process, the threaded structure of screw a201 converts the rotational motion of motor a202 into linear displacement of upper detection bar 101, enabling precise control of the position of upper detection bar 101.

[0027] As a further solution of the present invention, the lead screw a201 is connected to a guide cylinder 203, the outer wall of the guide cylinder 203 is provided with a guide opening 204, the side wall of the lower detection bar 102 is connected to a top contact rod 205, the connecting rod 200 is slidably connected to a connecting frame 206, one end of the connecting frame 206 is connected to a top contact block 207 that contacts the top contact rod 205, and the other end is inserted into the guide opening 204, the side wall of the connecting rod 200 is connected to a limit rod 208 that is slidably connected to the lower detection bar 102, and a spring a209 is connected between the limit rod 208 and the lower detection bar 102; Through the above arrangement, during the rotation of the lead screw a201, the guide cylinder 203 is driven to rotate synchronously. Since the outer wall of the guide cylinder 203 is provided with a guide opening 204, and one end of the connecting frame 206 is inserted into the guide opening 204, when the guide cylinder 203 rotates, the guide opening 204 pushes the connecting frame 206 to move vertically along the direction of the connecting rod 200. At the same time, the other end of the connecting frame 206 is connected to a top contact block 207. Driven by the connecting frame 206, the top contact block 207 can press the top contact rod 205, allowing the top contact block 207 to push the top contact rod 205. The side wall of the lower detection bar 102 is pushed by the top contact rod 205 to move, and the spring a209 is stretched to generate potential energy. When the top contact block 207 gradually leaves the top contact rod 205, the lower detection bar 102 can be reset by the potential energy of the spring a209, thereby achieving the purpose of making the lower detection bar 102 shake when the upper detection bar 101 moves downward.

[0028] As a further solution of the present invention, the two surfaces of the upper detection bar 101 and the lower detection bar 102 close to each other are rotatably connected to a plurality of rollers 210; Through the above arrangement, the roller 210 can effectively reduce the sliding resistance of the cable, so that the cable can enter the arc groove of the lower detection bar 102 more smoothly under the action of gravity and vibration force.

[0029] As a further solution of the present invention, a connecting block a300 is slidably connected to the connecting rod 200, and the connecting block a300 cooperates with the lead screw a201. The side wall of the upper detection bar 101 is connected to a connecting block b301 that is rotatably connected to the connecting block a300. The connecting block a300 is connected to a motor b302, and the drive shaft of the motor b302 passes through the connecting block a300 and is fixed to the connecting block b301. Through the above arrangement, connecting block a300 and connecting block b301 serve as key connecting components, enabling the upper detection bar 101 to achieve synchronous movement when the lead screw a201 rotates. Specifically, when the lead screw a201 rotates, connecting block a300, driven by the threaded pair, produces linear displacement along the lead screw a201, and this displacement is simultaneously transmitted to the upper detection bar 101 via connecting block b301, achieving smooth movement of the upper detection bar 101 on the connecting rod 200.

[0030] Regarding motor b302, in its initial state, the drive shaft of motor b302 passes through connecting block a300 and is fixedly connected to connecting block b301. When motor b302 rotates, it can drive connecting block b301 to rotate relative to connecting block a300, thereby achieving preliminary horizontal adjustment of upper detection bar 101. The advantage of this arrangement is that when placing the power meter, the rotation of motor b302 can temporarily move the upper detection bar 101 away from the lower detection bar 102, leaving more space for the placement of the power meter and the line, ensuring that the power meter can be placed stably on the detection platform 100, and that the cable can be reliably supported by the docking plate.

[0031] As a further solution of the present invention, the detection platform 100 is rotatably connected to a lead screw b303, the connecting rod 200 is threadedly engaged with the lead screw b303, the detection platform 100 is connected to a motor c304, and the drive shaft of the motor c304 is connected to the lead screw b303; Through the above setting, when the motor c304 is started, its driving shaft drives the screw b303 to rotate. Since there is a threaded fitting relationship between the connecting rod 200 and the screw b303, the rotation of the screw b303 will convert the spiral force into a linear displacement of the connecting rod 200, so that the entire connecting rod 200 moves smoothly along the length direction of the detection platform 100, thereby realizing the synchronous position adjustment of the upper detection bar 101 and the lower detection bar 102, and allowing the upper detection bar 101 and the lower detection bar 102 to gradually detect the line along the length direction of the detection platform 100.

[0032] As a further solution of the present invention, the supporting plate 106 is slidably connected to the top opening 105 and is connected to the detection platform 100 by a spring b400. The bottom of the supporting plate 106 is connected to a support rod 401, which passes through the detection platform 100 and extends to the top of the detection platform 100 and is connected to a pressure rod 402. The pressure rod 402 is provided with an oblique opening 403, and a straight opening 404 is provided at the end of the oblique opening 403. The side wall of the connecting rod 200 is connected to a guide rod 405 inserted into the oblique opening 403; Through the above arrangement, the supporting plate 106 is slidably connected to the top opening 105 and is connected to the detection platform 100 via the spring b400, forming an elastic support structure. In the initial state, the spring b400 is in a natural state, supporting the supporting plate 106 to firmly connect the cable circuit to the top opening 105. As the connecting rod 200 moves forward under the drive of the lead screw b303 and presses the oblique section opening 403 until it reaches the straight section opening 404, during this process, the pressure rod 402 is forced to move downward, which can achieve the purpose of moving the supporting plate 106 downward to avoid the lower detection bar 102. It can also expand the distance between the supporting plate 106 and the upper circuit of the lower detection bar 102, so as to better "build" the circuit and facilitate the subsequent sliding detection of the upper and lower detection bars 102.

[0033] As a further solution of the present invention, a connecting opening 500 is opened on the detection platform 100, and the positioning plate 107 is slidably connected to the connecting opening 500. The side wall of the pressure rod 402 is connected to a connecting rod 501 and extends between the positioning plate 107 and the two positioning plates 107. The positioning plate 107 is rotatably connected to a hinge rod 502, and the other end of the hinge rod 502 is rotatably connected to the connecting rod 501. A spring c503 is connected between the positioning plate 107 and the detection platform 100; With this arrangement, in the initial state, spring c503 is in its natural position, automatically returning to its original position when the positioning plate 107 is pushed by an external force. When the pressure rod 402 is pressed by the guide rod 405, the connecting rod 501 is pushed, and the two positioning plates 107 are simultaneously brought inward and together via the two hinged rods 502, clamping the power meter in the left and right directions and providing the necessary limiting support. When the external force is removed, the elastic restoring force of spring c503 pushes the positioning plates 107 back to their original position, making it easier for subsequent operators to remove the tested power meter.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A power meter leakage detector, characterized in that: include: Detection platform (100); An upper detection bar (101) and a lower detection bar (102) are provided on the top of the detection platform (100), wherein an arc-shaped opening (103) is provided on the upper detection bar (101) and the lower detection bar (102), and an arc-shaped magnetic strip (104) is provided in the arc-shaped opening (103); A top opening (105) is provided on the top of the detection platform (100), wherein a supporting plate (106) is provided in the top opening (105); Two positioning plates (107) are provided on the detection platform (100), and the positioning plates (107) are slidably provided on the detection platform (100); A partition component provided between the upper detection bar (101) and the lower detection bar (102), used for moving the position of the upper detection bar (101) up and down, and vibrating the lower detection bar (102), so that the circuits are distributed in the arc-shaped openings (103) on the lower detection bar (102); A detection component provided on the detection platform (100) is used to move the upper detection bar (101) and the lower detection bar (102) along the detection platform (100), and the upper detection bar (101) and the lower detection bar (102) can move the supporting plate (106) when the upper detection bar and the lower detection bar (102) are displaced, and the supporting plate (106) moves to avoid the upper detection bar and the lower detection bar; The detection component is also capable of moving the positions of the two positioning plates (107) so that the two positioning plates (107) move closer to each other.

2. The electric power meter leakage detector according to claim 1, characterized in that: The detection component includes a connecting rod (200) slidably connected to the detection platform (100), a lead screw a (201) is rotatably connected to the connecting rod (200), the upper detection bar (101) is slidably connected to the connecting rod (200) and threadedly engaged with the lead screw a (201), the bottom of the connecting rod (200) is connected to a motor a (202), and the drive shaft of the motor a (202) is connected to the lead screw a (201).

3. The electric power meter leakage detector according to claim 2, characterized in that: The lead screw a (201) is connected to a guide cylinder (203), an outer wall of the guide cylinder (203) is provided with a guide opening (204), a side wall of the lower detection bar (102) is connected to a top contact rod (205), a connecting frame (206) is slidably connected to the connecting rod (200), one end of the connecting frame (206) is connected to a top contact block (207) in contact with the top contact rod (205), and the other end is inserted into the guide opening (204), a side wall of the connecting rod (200) is connected to a limit rod (208) slidably connected to the lower detection bar (102), and a spring a (209) is connected between the limit rod (208) and the lower detection bar (102).

4. The electric power meter leakage detector according to claim 1, characterized in that: Two surfaces of the upper detection bar (101) and the lower detection bar (102) that are close to each other are rotatably connected to a plurality of rollers (210).

5. The electric power meter leakage detector according to claim 2, characterized in that: A connecting block a (300) is slidably connected to the connecting rod (200), and the connecting block a (300) cooperates with the lead screw a (201). The side wall of the upper detection bar (101) is connected to a connecting block b (301) that is rotatably connected to the connecting block a (300). A motor b (302) is connected to the connecting block a (300), and a driving shaft of the motor b (302) passes through the connecting block a (300) and is fixed to the connecting block b (301).

6. The electric power meter leakage detector according to claim 2, characterized in that: The detection platform (100) is rotatably connected to a lead screw b (303), the connecting rod (200) is threadedly engaged with the lead screw b (303), the detection platform (100) is connected to a motor c (304), and the drive shaft of the motor c (304) is connected to the lead screw b (303).

7. The electric power meter leakage detector according to claim 2, characterized in that: The supporting plate (106) is slidably connected in the top opening (105) and is connected to the detection platform (100) by a spring b (400). The bottom of the supporting plate (106) is connected to a support rod (401). The support rod (401) passes through the detection platform (100) and extends to the top of the detection platform (100) and is connected to a pressure rod (402). The pressure rod (402) is provided with an oblique section opening (403). The end of the oblique section opening (403) is provided with a straight section opening (404). The side wall of the connecting rod (200) is connected to a guide rod (405) inserted into the oblique section opening (403).

8. The electric power meter leakage detector according to claim 7, characterized in that: The detection platform (100) is provided with a connection opening (500), the positioning plate (107) is slidably connected in the connection opening (500), the side wall of the pressure rod (402) is connected with a connecting rod (501) and extends between the positioning plate (107) and the two positioning plates (107), the positioning plate (107) is rotatably connected with a hinge rod (502), the other end of the hinge rod (502) is rotatably connected to the connecting rod (501), and a spring c (503) is connected between the positioning plate (107) and the detection platform (100).

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