Portable electric meter detection device

Abstract

The present invention discloses a portable electric meter detection device, comprising a detector and a test unit thereon, wherein a plurality of detection heads are arranged on a side of the detector close to the electric meter, a base plate is installed at the bottom of the detector, and a positioning component is arranged on the base plate. Through the arrangement of the positioning component, the stable clamping effect of the electric meter to be detected is improved, and the problem that the electric meter and the detector may shift in a vibration scenario when only relying on magnetic adsorption is solved, and the assembly stability is improved. Through the cooperation of the first push plate, the push rod, the connecting rod and the adjustment gear and the adjustment rack, the effect of automatically adjusting the angle of the detection needle is achieved, so that the detection needle can accurately dock with the conductive sheet in the voltage terminal group, and the problem of poor contact or false detection caused by the displacement of the probe is solved. Through the cooperation of the first push plate, the groove and the first push handle, the stability of the docking between the detection head and the voltage terminal port is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric meters, in particular to a portable electric meter detection device. Background Art

[0002] Electric meters typically undergo a withstand voltage test before use. This test is one of the primary methods for verifying the overvoltage resistance of electrical appliances, electrical equipment, electrical devices, electrical circuits, and electrical safety equipment. It is divided into two types: power frequency withstand voltage test and DC withstand voltage test. The power frequency withstand voltage test uses a test voltage ranging from one to several times the rated voltage of the device under test. The DC withstand voltage test uses leakage current values ​​at different test voltages to create a leakage current-voltage characteristic curve. Withstand voltage testing can detect local insulation defects, moisture, and aging in electrical equipment.

[0003] The test of the smart module of a smart meter usually involves connecting the connection terminals of the smart module to the detection instrument, and inputting the rated load into the connection terminals of the detection instrument. At the same time, the staff observes whether the display reading of the smart meter is consistent with the input rated load. Then, the value displayed on the meter display can be compared with the input load value to determine the current status of the smart module of the smart meter.

[0004] Existing electric meters are not used for a long time after purchase and need to be professionally tested before being used again. However, the electric meter and the detection device in the portable electric meter detection device with publication number CN202211545643.5 are positioned by magnetism when they are installed. Relying solely on magnetic adsorption may cause vibration in a vibrating scenario. The displacement of the electric meter and the push plate may cause the probe to shift, causing poor contact or false detection. Therefore, it does not meet the existing needs, and a portable electric meter detection device is proposed. Summary of the Invention

[0005] The present invention provides a portable electric meter detection device, which has the advantages of detecting the stability of the electric meter, automatically adjusting the angle of the probe, and improving the accuracy of the probe. It solves the problem mentioned in the above background technology that the electric meter and the detection device are positioned by magnetism when installed. Relying solely on magnetic adsorption, the electric meter may vibrate in a vibrating scenario, and the displacement of the electric meter and the push plate may cause the probe to shift, resulting in poor contact or false detection.

[0006] The present invention provides the following technical solution: a portable electric meter detection device, comprising a detector and a test unit thereon, wherein a plurality of detection heads are provided on a side of the detector close to the electric meter, a base plate is mounted on the bottom of the detector, a positioning assembly is mounted on the base plate, the detection head comprises an insulating protective sleeve, a detection needle, and a connecting rod, a push rod is hingedly connected to the end of the connecting rod, an adjustment rack is mounted within the insulating protective sleeve, the adjustment rack is in transmission engagement with the connecting rod, a first push plate is mounted in the middle of the base plate, and the push rod is connected to the first push plate;

[0007] The detection needle contacts the voltage terminal group of the tested electric meter.

[0008] As an optional solution for the portable electric meter detection device described in the present invention, the positioning component includes a positioning groove provided on the base plate, a connecting rod is slidably inserted in the positioning groove, a contact plate is installed at the top end of the connecting rod, a sliding block is installed at the bottom end of the connecting rod, the sliding block is slidably installed in the positioning groove, a telescopic rod is slidably inserted at the side of the sliding block, a clamping block is installed at the end of the telescopic rod, and the clamping block is in contact with the electronic port group.

[0009] As an optional solution of the portable electric meter detection device of the present invention, wherein: an auxiliary block is installed in the positioning groove, the side of the auxiliary block is connected to a slope portion, a parallel portion and a limit portion, the outer cover of the telescopic rod is provided with a telescopic spring, one end of the telescopic spring is fixedly connected to the inner wall of the sliding block, and the other end of the telescopic spring is fixedly connected to the side of the clamping block;

[0010] When the sliding block slides on the slope, the clamping block contacts the side of the electric meter, and the telescopic spring is gradually compressed;

[0011] When the sliding block slides to the parallel portion, the telescopic spring remains compressed.

[0012] As an optional solution of the portable electric meter detection device described in the present invention, wherein: the detection needle is electrically connected to the voltage terminal group, the connecting rod is installed at the end of the detection needle, the insulating protective sleeve is arranged on the outside of the detection needle and the connecting rod, and the end of the insulating protective sleeve is installed with a block for contacting the voltage terminal group of the electric meter.

[0013] As an optional solution of the portable electric meter detection device described in the present invention, wherein: a buffer sleeve is provided on the outer shell of the push rod, the buffer sleeve is located in the insulating protective sleeve, a buffer cavity is opened in the buffer sleeve, a buffer spring is provided in the buffer cavity, one end of the buffer spring is fixedly connected to the inner wall of the buffer cavity, a piston block is slidably installed in the buffer sleeve, the piston block is fixedly installed in the middle of the push rod, and the other end of the buffer spring is engaged with the piston block.

[0014] As an optional solution of the portable electric meter detection device described in the present invention, wherein: a mounting groove is provided on the bottom plate, a second push plate is installed on the side of the first push plate, the end of the insulating protective cover is fixedly inserted into the second push plate, the cross-sectional area of ​​the second push plate is larger than the cross-sectional area of ​​the first push plate, a groove is provided on the second push plate, and the first push plate is movably engaged with the groove.

[0015] As an optional solution of the portable electric meter detection device of the present invention, wherein: a first slide groove and a second slide groove are formed on the bottom plate, the first slide groove is located on the side of the second slide groove, a first slider is installed at the bottom of the first push plate, the first slider is slidably inserted in the first slide groove, and a second slider is installed at the bottom of the second push plate, the second slider is slidably inserted in the second slide groove;

[0016] A first push handle is installed on the first push plate, and a second push handle is installed on the second push plate. The second push handle and the first push handle are both located outside the detector.

[0017] As an optional solution of the portable electric meter detection device described in the present invention, wherein: a rotating shaft is installed at the end of the connecting rod, the rotating shaft is hinged to the pushing rod, an adjusting gear is installed at the end of the rotating shaft, the adjusting rack is installed on the inner side of the insulating protective cover, and the adjusting gear is intermittently engaged with the adjusting rack.

[0018] As an optional solution of the portable electric meter detection device described in the present invention, the buffer sleeve is provided with an air supply hole at one end adjacent to the connecting rod, a film valve is provided in the air supply hole, an air supply pipe is installed in the insulating protective cover, the air supply pipe is configured as a plastic L-shaped tube, a placement groove is provided at the front end outside the insulating protective cover, an airbag is embedded in the placement groove, the airbag is connected to the air supply pipe through an air tube, a fixing ring is provided in the placement groove, and the fixing ring is engaged with the airbag.

[0019] As an optional solution of the portable electric meter detection device described in the present invention, a slot is provided in the buffer sleeve, the push rod passes through the slot and is installed with the first push plate, a sealing ring is installed in the slot, and the sealing ring is set to be a rubber ring.

[0020] The present invention has the following beneficial effects:

[0021] 1. The portable electric meter detection device improves the effect of stably clamping the electric meter to be detected by setting a positioning component, solves the problem that the electric meter and the detector may shift in a vibration scenario by relying solely on magnetic adsorption, and improves assembly stability. Through the cooperation of the first push plate, the push rod, the connecting rod, the adjustment gear, and the adjustment rack, the effect of automatically adjusting the angle of the detection needle is achieved, so that the detection needle can accurately dock with the conductive piece in the voltage terminal group, solving the problem of poor contact or false detection caused by probe displacement. Through the cooperation of the first push plate, the groove and the first push handle, not only the docking stability of the detection head and the voltage terminal port is improved, but also when an abnormal sound is heard, the detection head and the voltage terminal group can be manually disconnected, thereby reducing safety hazards.

[0022] 2. The portable electric meter detection device, through the arrangement of the first push plate, the detection needle and the push rod, cooperates with the buffer sleeve, the membrane valve, the air supply pipe, the air bag, etc., to improve the stability of the connection between the detection needle and the voltage terminal group and the safety effect of the detection process. At the same time, when an arc is detected in an unqualified electric meter, the device and the detector can be protected in time to reduce losses, thereby better solving the problem of potential safety hazards such as fire when detecting unqualified electric meters. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention.

[0024] Figure 2 It is a rear perspective structural diagram of the main body of the present invention.

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the positioning component test of the present invention.

[0026] Figure 4 It is a schematic diagram of the top view and cross-section structure of the positioning assembly of the present invention.

[0027] Figure 5 For the present invention Figure 4 The enlarged structural diagram at C in FIG.

[0028] Figure 6 It is a schematic diagram of the main body cutaway structure of the present invention.

[0029] Figure 7 For the present invention Figure 6 A in the figure is an enlarged structural diagram.

[0030] Figure 8 This is a schematic diagram of the main test section structure of the present invention.

[0031] Figure 9 It is a schematic diagram of the three-dimensional structure of the detection head of the present invention.

[0032] Figure 10 It is a schematic diagram of the three-dimensional cross-section structure of the detection head of the present invention.

[0033] Figure 11 This is a schematic diagram of the cross-sectional structure of the detection head of the present invention.

[0034] Figure 12 For the present invention Figure 11 The enlarged structural diagram at B in FIG.

[0035] In the figure: 110, detector; 112, test unit; 114, detection head; 115, bottom plate; 116, mounting groove; 117, push rod; 118, adjustment rack; 119, first push plate; 120, insulating protective cover; 121, detection needle; 122, connecting rod; 123, stop block; 130, positioning assembly; 131, positioning groove; 132, connecting rod; 133, stop plate; 134, sliding block; 135, telescopic rod; 136, clamping block; 137, auxiliary block; 138, telescopic spring; 139, piston block; 140, buffer sleeve; 141. Buffer chamber; 142. Buffer spring; 143. Second push plate; 144. Groove; 145. First slide groove; 146. Second slide groove; 147. First slider; 148. Second slider; 149. First push handle; 150. Second push handle; 151. Rotating shaft; 152. Adjusting gear; 153. Air supply hole; 154. Membrane valve; 155. Air supply pipe; 156. Placement groove; 157. Airbag; 158. Fixing ring; 160. Slot; 161. Sealing ring; 162. Slope portion; 163. Parallel portion; 164. Limiting portion. DETAILED DESCRIPTION

[0036] 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.

[0037] Example 1: This example aims to solve the problem that when the meter and the detection device are installed, they are positioned by magnetism. If they are only adsorbed by magnetism, they may vibrate in a vibrating scene. The displacement of the meter and the push plate may cause the probe to shift, causing poor contact or false detection. Please refer to Figure 1-12The portable electric meter detection device includes a detector 110 and a test unit 112 thereon. The test unit 112 is used to test the electric meter. A plurality of detection heads 114 are provided on the side of the detector 110 close to the electric meter. A base plate 115 is installed at the bottom of the detector 110. A positioning assembly 130 for positioning the electric meter is provided on the base plate 115. The detection head 114 includes an insulating protective cover 120, a detection needle 121 and a connecting rod 122. A push rod 117 is hinged at the end of the connecting rod 122. An adjusting rack 118 is installed in the insulating protective cover 120. The adjusting rack 118 is in transmission cooperation with the connecting rod 122. A first push plate 119 is installed in the middle of the base plate 115. The push rod 117 is connected to the first push plate 119; the detection needle 121 is in contact with the voltage terminal group of the electric meter under test.

[0038] Among them, how the detector 110, the test unit 112 and the voltage terminal group mentioned in this solution specifically cooperate to perform detection is a public technology, regarded as a conventional technical means, and is well known to those skilled in the art.

[0039] It should also be added that the number of the detection heads 114 is set to correspond to the number of the voltage terminal groups.

[0040] Positioning assembly 130 includes a positioning slot 131 defined in base plate 115. A connecting rod 132 is slidably inserted into positioning slot 131. A contact plate 133 is mounted on the top of connecting rod 132. A sliding block 134 is mounted on the bottom of connecting rod 132. Sliding block 134 is slidably mounted within positioning slot 131. A telescopic rod 135 is slidably inserted into the side of sliding block 134. A clamping block 136 is mounted on the end of telescopic rod 135. Clamping block 136 abuts against the electronic port assembly. Because clamping block 136 is internally provided with telescopic rod 135 and telescopic spring 138, telescopic rod 135 provides support for clamping block 136 when contacting the side wall. Simultaneously, the clamping surfaces of the dual clamping blocks 136 contact the meter housing, enhancing assembly stability.

[0041] See Figure 1 - Figure 6 An auxiliary block 137 is installed in the positioning groove 131. The side of the auxiliary block 137 is connected with a slope portion 162, a parallel portion 163 and a limit portion 164. A telescopic spring 138 is provided on the outer sleeve of the telescopic rod 135. One end of the telescopic spring 138 is fixedly connected to the inner wall of the sliding block 134, and the other end of the telescopic spring 138 is fixedly connected to the side of the clamping block 136; when the sliding block 134 slides on the slope portion 162, the clamping block 136 contacts the side of the electric meter, and the telescopic spring 138 is gradually compressed; when the sliding block 134 slides to the parallel portion 163, the telescopic spring 138 remains compressed.

[0042] During the inspection, the operator needs to push the electric meter longitudinally along the installation slot 116 so that it can be installed with the detector 110. As the pushing action progresses, the outer casing of the electric meter gradually approaches the positioning assembly 130 at the detector 110. The continuous thrust causes the contact plate 133 to be displaced. The displacement is transmitted to the sliding block 134 through the connecting rod 132. The sliding block 134 slides on the slope 162 of the auxiliary block 137. The clamping block 136 extends from the positioning slot 131 and contacts the side of the electric meter, and the telescopic spring 138 is gradually compressed to clamp the electric meter. When the sliding block 134 slides to the parallel portion 163, the telescopic spring 138 remains compressed, thereby maintaining the clamping of the electric meter. The setting of the limit portion 164 is used to limit the moving range of the sliding block 134.

[0043] The test needle 121 is electrically connected to the voltage terminal block. A connecting rod 122 is mounted on the end of the test needle 121. An insulating protective sleeve 120 is positioned outside the test needle 121 and the connecting rod 122. A stop 123 is mounted on the end of the insulating protective sleeve 120 to contact the voltage terminal block of the meter under test. Due to the placement of the stop 123, the insulating protective sleeve 120 is blocked outside the voltage terminal block, while the test needle 121 is pushed into the voltage terminal block by the first push plate 119, contacting the conductive pad inside the voltage terminal block.

[0044] A buffer sleeve 140 is provided on the outer sleeve of the push rod 117, and the buffer sleeve 140 is located in the insulating protective sleeve 120. A buffer cavity 141 is opened in the buffer sleeve 140, and a buffer spring 142 is provided in the buffer cavity 141. One end of the buffer spring 142 is fixedly connected to the inner wall of the buffer cavity 141, and the other end of the buffer spring 142 is engaged with the push rod 117.

[0045] A mounting groove 116 is provided on the bottom plate 115, and a second push plate 143 is installed on the side of the first push plate 119. The end of the insulating protective cover 120 is fixedly inserted into the second push plate 143. The cross-sectional area of ​​the second push plate 143 is larger than the cross-sectional area of ​​the first push plate 119. A groove 144 is provided on the second push plate 143, and the first push plate 119 is movably engaged with the groove 144.

[0046] The bottom plate 115 is provided with a first slide groove 145 and a second slide groove 146. The first slide groove 145 is located on the side of the second slide groove 146. A first slider 147 is installed at the bottom of the first push plate 119 and is slidably inserted into the first slide groove 145. A second slider 148 is installed at the bottom of the second push plate 143 and is slidably inserted into the second slide groove 146.

[0047] A first push handle 149 is mounted on the first push plate 119 , and a second push handle 150 is mounted on the second push plate 143 . Both the second push handle 150 and the first push handle 149 are located outside the detector 110 .

[0048] A rotating shaft 151 is installed at the end of the connecting rod 122, and the rotating shaft 151 is hinged to the push rod 117. An adjusting gear 152 is installed at the end of the rotating shaft 151. The adjusting rack 118 is installed on the inner side of the insulating protective cover 120, and the adjusting gear 152 is intermittently meshed with the adjusting rack 118.

[0049] See Figure 5 、 Figure 6 、 Figure 9 and Figure 10 When the meter is mounted on the bottom plate 115, the first push plate 119 and the second push plate 143 are pushed to move the detection head 114 toward the voltage terminal group, thereby docking them. Figure 10 By providing a buffer cavity 141 within the buffer spring 142, the size differences of different brands of electric meters can be accommodated. The buffer spring 142 is disposed within the buffer cavity 141. After the detection needle 121 contacts the conductive sheet, any further pushing force is absorbed by the buffer spring 142, providing buffer protection for the detection needle 121 and improving its stability.

[0050] When the detection needle 121 is pushed toward the voltage terminal group, the adjusting gear 152 will contact the adjusting rack 118. As the detection needle 121 is continuously pushed toward the voltage terminal group, the adjusting gear 152 will engage with the adjusting rack 118. At this time, the adjusting gear 152 controls the rotating shaft 151 to rotate. As the rotating shaft 151 rotates, the angle of the detection needle 121 will be automatically adjusted, so that the detection needle 121 can accurately dock with the conductive sheet in the voltage terminal group, thereby achieving rapid power on and off.

[0051] The first push handle 149 and the second push handle 150 facilitate the operator's operation when pushing the first push plate 119 and the second push plate 143. The cooperation between the first slide groove 145, the first slider 147, the second slide groove 146, and the second slider 148 provides guidance and limitation when pushing the first push plate 119 and the second push plate 143, thereby improving the stability of the connection between the detection head 114 and the voltage terminal assembly.

[0052] When a person hears an abnormal sound, he or she can manually pull the first push handle 149 to drive the detection needle 121 to be separated from the voltage port group in time and retracted into the insulating protective cover 120, so that the electric meter and the detection device can be protected in time.

[0053] In this embodiment: through the setting of the positioning component 130, the effect of stable clamping of the electric meter to be tested is improved, the problem that the electric meter and the detector 110 may shift in a vibration scenario by relying solely on magnetic adsorption is solved, and the assembly stability is improved. Through the cooperation of the first push plate 119, the push rod 117, the connecting rod 122 and the adjustment gear 152, and the adjustment rack 118, the effect of automatically adjusting the angle of the detection needle 121 is achieved, so that the detection needle 121 can be accurately docked with the conductive sheet in the voltage terminal group, solving the problem of poor contact or false detection caused by probe displacement. Through the cooperation of the first push plate 119, the groove and the first push handle, not only the stability of the docking between the detection head 114 and the voltage terminal port is improved, but also when an abnormal sound is heard, the detection head 114 and the voltage terminal group can be manually disconnected, thereby reducing safety hazards.

[0054] Example 2: This example aims to solve the problem that when an unqualified meter is detected, the operator may not be able to respond in time, which may cause a short circuit, generate a high-temperature arc or spark, and cause a fire. This example is an improvement based on Example 1. For details, please refer to Figure 1 - Figure 11 .

[0055] Nitrogen is stored in the buffer chamber 141. A piston block 139 is slidably mounted within the buffer sleeve 140. Piston block 139 is fixedly mounted in the middle of the push rod 117, and the other end of a buffer spring 142 engages with piston block 139. After the buffer sleeve 140 contacts the inner wall of the buffer chamber 141, the push rod 117 continues to move, causing piston block 139 to compress the buffer spring 142 and squeeze the gas within the buffer sleeve 140.

[0056] See Figure 11 、 Figure 12 The buffer sleeve 140 has an air supply hole 153 at one end adjacent to the connecting rod 122. A film valve 154 is provided in the air supply hole 153. An air supply pipe 155 is installed in the insulating protective sleeve 120. The air supply pipe 155 is configured as a plastic L-shaped tube. A placement groove 156 is provided at the front end of the insulating protective sleeve 120. An air bag 157 is embedded in the placement groove 156. The air bag 157 is connected to the air supply pipe 155 through the air pipe. A fixing ring 158 is provided in the placement groove 156. The fixing ring 158 is engaged with the air bag 157. The fixing ring 158 is used to prevent the air bag from falling off after inflation. A slot 160 is provided in the buffer sleeve 140. The push rod 117 passes through the slot 160 and is installed with the first push plate 119. A sealing ring 161 is installed in the slot 160. The sealing ring 161 is configured as a rubber ring.

[0057] It should be added that the membrane valve 154 generally uses an elastic membrane to control the flow of fluid or gas, and realizes switching by deformation of the membrane. This is a conventional technical means and is well known to those skilled in the art.

[0058] When an accident occurs and the airbag 157 is damaged, the operator only needs to remove the used airbag 157 and engage a new airbag 157 with the placement groove 156 to install it.

[0059] See Figure 10 and Figure 11 A slot 160 is provided in the buffer sleeve 140 , the push rod 117 passes through the slot 160 and is installed with the first push plate 119 , a sealing ring 161 is installed in the slot 160 , and the sealing ring 161 is set to be a rubber ring.

[0060] By providing the slot 160 and the sealing ring 161 in the buffer sleeve 140 , the protective gas can be effectively prevented from leaking when the buffer sleeve 140 is pushed, thereby improving the protection effect when a safety hazard occurs.

[0061] Through the arrangement of the first push plate 119, the detection needle 121 and the push rod 117, etc., in cooperation with the buffer sleeve 140, the film valve 154, the air supply pipe 155, the air bag 157, etc., when pushing the first push plate 119 to control the detection needle 121 to dock with the voltage terminal group, since the buffer sleeve 140 is provided with protective gas nitrogen, when the detection needle 121 docks with the conductive sheet, the first push plate 119 is pushed to control the buffer sleeve 140 to move into the insulating protective sleeve 120, so that the film valve 154 in the air supply hole 153 conflicts with the air supply pipe 155. Since the air supply pipe 155 is set as a hard L-shaped tube, the film valve 154 can be opened, and the protective gas in the buffer sleeve 140 will be injected into the air bag 157 through the air supply pipe 155, causing the air bag 157 to expand. The expanded air bag 157 extends into the voltage terminal group of the meter under test and wraps the detection head 114, thereby forming a layer of protection. When an unqualified electric meter is detected and an arc spark occurs, the high temperature of the arc will break the airbag 157. At this time, protective gas will be emitted from the airbag 157, thereby providing timely protection for the detector 110 and reducing the harm of accidents.

[0062] In this embodiment: through the arrangement of the first push plate 119, the detection needle 121 and the push rod 117, etc., in cooperation with the buffer sleeve 140, the membrane valve 154, the air supply pipe 155, the air bag 157, etc., the protection of the device is increased while the electric meter is being detected, and the stability of the connection between the detection needle 121 and the voltage terminal group and the safety effect of the detection process are improved. At the same time, when an arc is detected in an unqualified electric meter, the detector 110 can be protected in time to reduce losses. Therefore, when an unqualified electric meter is detected, the operator may not be able to react in time, which may cause a short circuit, generate a high-temperature arc or electric spark, and cause a fire.

[0063] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0064] 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 within the scope of protection of the present invention.

Claims

1. A portable electric meter detection device, comprising a detector (110) and a test unit (112) thereon, wherein a plurality of detection heads (114) are provided on a side of the detector (110) close to the electric meter, and characterized in that: A base plate (115) is installed at the bottom of the detector (110), and a positioning assembly (130) is provided on the base plate (115). The detection head (114) includes an insulating protective sleeve (120), a detection needle (121) and a connecting rod (122). A push rod (117) is hinged at the end of the connecting rod (122). An adjustment rack (118) is installed in the insulating protective sleeve (120), and the adjustment rack (118) is in transmission cooperation with the connecting rod (122). A first push plate (119) is installed in the middle of the base plate (115), and the push rod (117) is connected to the first push plate (119); the detection needle (121) contacts the voltage terminal group of the measured electric meter; The positioning assembly (130) includes a positioning groove (131) provided on the bottom plate (115), a connecting rod (132) is slidably inserted in the positioning groove (131), a contact plate (133) is installed at the top end of the connecting rod (132), a sliding block (134) is installed at the bottom end of the connecting rod (132), the sliding block (134) is slidably installed in the positioning groove (131), a telescopic rod (135) is slidably inserted at the side of the sliding block (134), a clamping block (136) is installed at the end of the telescopic rod (135), and the clamping block (136) is in contact with the electronic port group.

2. The portable electric meter detection device according to claim 1, characterized in that: An auxiliary block (137) is installed in the positioning groove (131), and the side of the auxiliary block (137) is connected with a slope portion (162), a parallel portion (163) and a limit portion (164). The outer cover of the telescopic rod (135) is provided with a telescopic spring (138), one end of the telescopic spring (138) is fixedly connected to the inner wall of the sliding block (134), and the other end of the telescopic spring (138) is fixedly connected to the side of the clamping block (136); When the sliding block (134) slides on the slope (162), the clamping block (136) contacts the side of the electric meter, and the telescopic spring (138) is gradually compressed; When the sliding block (134) slides to the parallel portion (163), the telescopic spring (138) remains compressed.

3. The portable electric meter detection device according to claim 1, characterized in that: The detection needle (121) is electrically connected to the voltage terminal group, the connecting rod (122) is installed at the end of the detection needle (121), the insulating protective sleeve (120) is arranged outside the detection needle (121) and the connecting rod (122), and a stop block (123) is installed at the end of the insulating protective sleeve (120) for contacting the voltage terminal group of the electric meter being tested.

4. The portable electric meter detection device according to claim 3, characterized in that: The outer cover of the push rod (117) is provided with a buffer sleeve (140), and the buffer sleeve (140) is located in the insulating protective sleeve (120). A buffer cavity (141) is provided in the buffer sleeve (140), and a buffer spring (142) is provided in the buffer cavity (141). One end of the buffer spring (142) is fixedly connected to the inner wall of the buffer cavity (141). A piston block (139) is slidably installed in the buffer sleeve (140), and the piston block (139) is fixedly installed in the middle of the push rod (117). The other end of the buffer spring (142) is engaged with the piston block (139).

5. The portable electric meter detection device according to claim 1, characterized in that: The bottom plate (115) is provided with a mounting groove (116), a second push plate (143) is installed on the side of the first push plate (119), the end of the insulating protective sleeve (120) is fixedly inserted into the second push plate (143), the cross-sectional area of ​​the second push plate (143) is larger than the cross-sectional area of ​​the first push plate (119), the second push plate (143) is provided with a groove (144), and the first push plate (119) is movably engaged with the groove (144).

6. The portable electric meter detection device according to claim 5, characterized in that: The bottom plate (115) is provided with a first slide groove (145) and a second slide groove (146), wherein the first slide groove (145) is located on the side of the second slide groove (146), a first slider (147) is installed at the bottom of the first push plate (119), and the first slider (147) is slidably inserted in the first slide groove (145), and a second slider (148) is installed at the bottom of the second push plate (143), and the second slider (148) is slidably inserted in the second slide groove (146); A first push handle (149) is installed on the first push plate (119), and a second push handle (150) is installed on the second push plate (143). The second push handle (150) and the first push handle (149) are both located outside the detector (110).

7. The portable electric meter detection device according to claim 3, characterized in that: A rotating shaft (151) is installed at the end of the connecting rod (122), the rotating shaft (151) is hinged to the pushing rod (117), an adjusting gear (152) is installed at the end of the rotating shaft (151), the adjusting rack (118) is installed inside the insulating protective cover (120), and the adjusting gear (152) and the adjusting rack (118) are intermittently meshed.

8. The portable electric meter detection device according to claim 4, characterized in that: An air supply hole (153) is provided at one end of the buffer sleeve (140) adjacent to the connecting rod (122), and a film valve (154) is provided in the air supply hole (153). An air supply pipe (155) is installed in the insulating protective sleeve (120), and the air supply pipe (155) is configured as a plastic L-shaped pipe. A placement groove (156) is provided at the front end of the outer side of the insulating protective sleeve (120), and an air bag (157) is embedded in the placement groove (156). The air bag (157) is connected to the air supply pipe (155) through an air pipe, and a fixing ring (158) is provided in the placement groove (156), and the fixing ring (158) is engaged with the air bag (157).

9. The portable electric meter detection device according to claim 8, characterized in that: A slot (160) is provided in the buffer sleeve (140), the push rod (117) passes through the slot (160) and is installed with the first push plate (119), a sealing ring (161) is installed in the slot (160), and the sealing ring (161) is configured as a rubber ring.

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