Portable ammeter detection device

Abstract

A portable ammeter detection device disclosed by the present invention comprises a detector and a test unit on the detector, one side of the detector close to an ammeter is provided with a plurality of detection heads, the bottom of the detector is provided with a bottom plate, the bottom plate is provided with a positioning assembly, and through the arrangement of the positioning assembly, the stable clamping effect of the ammeter needing to be detected is improved. The problem that an ammeter and a detector may shift in a vibration scene only through magnetic adsorption is solved, the assembly stability is improved, through cooperation of a first push plate, a push rod, a connecting rod, an adjusting gear and an adjusting rack, the effect of automatically adjusting the angle of a detection needle is achieved, and the detection precision is improved. Therefore, the detection needle can be accurately in butt joint with a conducting strip in a voltage terminal set, the problem of poor contact or false detection caused by probe displacement is solved, and the butt joint stability of the detection head and a voltage terminal port is improved through cooperation of the first push plate, the groove and the first push handle.

Description

Technical Field

[0001] The present invention relates to the technical field of electricity meters, and particularly to a portable electricity meter detection device. Background Art

[0002] Before use, an electricity meter usually needs to undergo a withstand voltage test. The withstand voltage test is one of the main methods to test the overvoltage withstand ability of electrical appliances, electrical equipment, electrical devices, electrical circuits, and electrical safety appliances, and is divided into power frequency withstand voltage test and DC withstand voltage test. In the power frequency withstand voltage test, the test voltage is one to several times the rated voltage of the device under test; in the DC withstand voltage test, the leakage current values at different test voltages can be measured and the leakage current-voltage characteristic curve can be plotted. Through the withstand voltage test, local defects, moisture, and aging of the insulation of electrical equipment can be detected.

[0003] For the test of the intelligent module of an intelligent electricity meter, usually, the connection terminals of the intelligent module are connected to a detection instrument, and the detection instrument inputs a rated load to the connection terminals. At the same time, the staff observes whether the reading on the display of the intelligent electricity meter is consistent with the input rated load. Subsequently, the value displayed on the electricity meter display can be compared with the input load value to determine the state of the current intelligent electricity meter intelligent module.

[0004] For existing electricity meters, after being purchased and unused for a long time, they need to be subjected to relatively professional tests when used again. However, for the electricity meter and the detection device in the portable electricity meter detection device with the publication number CN202211545643.5, when the electricity meter and the detection device are installed, they are positioned by magnetism. Only relying on magnetic adsorption may cause vibration in a vibrating scenario, and the displacement of the electricity meter and the push plate may cause the displacement of the probe, resulting in poor contact or false detection. Therefore, it does not meet the existing requirements, and a portable electricity meter detection device is proposed for this. Summary of the Invention

[0005] The present invention provides a portable electricity meter detection device, which has the beneficial effects of detecting the stability of the electricity meter, automatically adjusting the angle of the probe, and improving the accuracy of the probe, and solves the problem mentioned in the above background art that when the electricity meter and the detection device are installed, they are positioned by magnetism, and only relying on magnetic adsorption may cause vibration in a vibrating scenario, and the displacement of the electricity meter and the push plate may cause the displacement of the probe, resulting in poor contact or false detection.

[0006] The present invention provides the following technical solution: a portable electric meter detection device, including a detector and a test unit thereon. A plurality of detection heads are arranged on one side of the detector close to the electric meter. A bottom plate is installed at the bottom of the detector, and a positioning component is arranged on the bottom plate. The detection head includes an insulating protective sleeve, a detection needle and a connecting rod. A push rod is hinged to the end of the connecting rod. An adjusting rack is installed in the insulating protective sleeve, and the adjusting rack is in transmission cooperation with the connecting rod. A first push plate is installed in the middle of the bottom plate, and the push rod is connected to the first push plate; The detection needle contacts the voltage terminal group of the electric meter to be measured.

[0007] As an alternative embodiment of the portable electric meter detection device of the present invention, wherein: the positioning component includes a positioning groove opened on the bottom plate. A connecting rod is slidably inserted into the positioning groove. A contact plate is installed at the top of the connecting rod. A sliding block is installed at the bottom of the connecting rod, and the sliding block is slidably installed in the positioning groove. A telescopic rod is slidably inserted into the side of the sliding block. A clamping block is installed at the end of the telescopic rod, and the clamping block abuts against the electronic port group.

[0008] As an alternative embodiment 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 with a slope part, a parallel part and a limiting part. A telescopic spring is sleeved outside the telescopic rod. One end of the telescopic spring is fixedly connected with the inner wall of the sliding block, and the other end of the telescopic spring is fixedly connected with the side of the clamping block; When the sliding block slides on the slope part, the clamping block contacts the side of the electric meter, and the telescopic spring is gradually compressed; When the sliding block slides to the parallel part, the telescopic spring remains compressed.

[0009] As an alternative embodiment of the portable electric meter detection device of 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 outside the detection needle and the connecting rod. A contact block is installed at the end of the insulating protective sleeve for abutting against the voltage terminal group of the electric meter.

[0010] As an alternative embodiment of the portable electric meter detection device of the present invention, wherein: a buffer sleeve is sleeved outside 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 arranged in the buffer cavity. One end of the buffer spring is fixedly connected with 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.

[0011] As an alternative embodiment of the portable electric meter detection device of the present invention, the following features are provided: an installation groove is formed on the bottom plate; a second push plate is installed on the side of the first push plate; the end of the insulation protection sleeve is fixedly inserted into the second push plate; the cross-sectional area of the second push plate is larger than that of the first push plate; a groove is formed on the second push plate; and the first push plate is movably engaged with the groove.

[0012] As an alternative embodiment of the portable electric meter detection device of the present invention, the following features are provided: a first sliding groove and a second sliding groove are formed on the bottom plate; the first sliding groove is located on the side of the second sliding groove; a first sliding block is installed at the bottom of the first push plate and is slidably inserted into the first sliding groove; a second sliding block is installed at the bottom of the second push plate and is slidably inserted into the second sliding groove. A first pushing handle is installed on the first push plate, and a second pushing handle is installed on the second push plate. Both the second pushing handle and the first pushing handle are located outside the detector.

[0013] As an alternative embodiment of the portable electric meter detection device of the present invention, the following features are provided: 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; an adjusting rack is installed inside the insulation protection sleeve; and the adjusting gear is intermittently engaged with the adjusting rack.

[0014] As an alternative embodiment of the portable electric meter detection device of the present invention, the following features are provided: an air supply hole is formed at one end of the buffer sleeve adjacent to the connecting rod; a thin film valve is arranged in the air supply hole; an air supply pipe is installed inside the insulation protection sleeve, and the air supply pipe is a plastic L-shaped pipe; a placement groove is formed at the front end outside the insulation protection sleeve; an airbag is embedded in the placement groove; the airbag is connected to the air supply pipe through a trachea; a fixing ring is arranged in the placement groove; and the fixing ring is engaged with the airbag.

[0015] As an alternative embodiment of the portable electric meter detection device of the present invention, the following features are provided: a slot is formed inside the buffer sleeve; the pushing rod passes through the slot and is installed with the first push plate; and a sealing ring is installed in the slot, and the sealing ring is a rubber ring.

[0016] The present invention has the following beneficial effects:

[0017] 1. The portable electric meter detection device, through the setting of the positioning component, improves the effect of stably clamping the electric meter to be detected, solves the problem that the electric meter and the detector may shift under vibration only by magnetic adsorption, improves the assembly stability. Through the cooperation of the first push plate, the push rod, the connecting rod, the adjusting gear and the adjusting 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, solving the problems of poor contact or misdetection caused by the shift of the probe. Through the cooperation of the first push plate, the groove and the first push handle, not only the stability of the docking between the detection head and the voltage terminal port is improved, but also when abnormal noise is heard, the docking between the detection head and the voltage terminal group can be manually disconnected, thus reducing the safety hazard.

[0018] 2. The portable electric meter detection device, through the setting of the first push plate, the detection needle, the push rod, etc., in cooperation with the buffer sleeve, the membrane valve, the air supply pipe, the airbag, etc., improves the stability of the docking between the detection needle and the voltage terminal group and the safety effect of the detection process. At the same time, when an arc occurs in the unqualified electric meter during detection, it can timely protect the detector and reduce losses, thus better solving the problem of potential safety hazards such as fire that may be caused when detecting unqualified electric meters. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic perspective view of the main body of the present invention.

[0020] Figure 2 It is a schematic rear perspective view of the main body of the present invention.

[0021] Figure 3 It is a schematic sectional view of the positioning component test of the present invention.

[0022] Figure 4 It is a schematic top sectional view of the positioning component of the present invention.

[0023] Figure 5 For the present invention Figure 4 The enlarged schematic view of part C in it.

[0024] Figure 6 It is a schematic sectional view of the main body of the present invention.

[0025] Figure 7 For the present invention Figure 6 The enlarged schematic view of part A in it.

[0026] Figure 8 It is a schematic sectional view of the main body test of the present invention.

[0027] Figure 9 It is a schematic perspective view of the detection head of the present invention.

[0028] Figure 10 It is a schematic diagram of the three-dimensional cross-section structure of the detection head of the present invention.

[0029] Figure 11 It is a schematic diagram of the cross-section structure of the detection head of the present invention.

[0030] Figure 12 For the present invention Figure 11 The enlarged structural diagram at B in FIG.

[0031] 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, abutment block; 130, positioning assembly; 131, positioning groove; 132, connecting rod; 133, abutment 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. Air bag; 158. Fixed ring; 160. Socket; 161. Sealing ring; 162. Slope portion; 163. Parallel portion; 164. Limiting portion. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: This embodiment is intended to promote the solution of the problem that when the meter and the detection device are installed, they are positioned by magnetic force. Only relying on magnetic adsorption may cause vibration 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 arranged on the side of the detector 110 close to the electric meter, a bottom plate 115 is installed at the bottom of the detector 110, a positioning assembly 130 for positioning the electric meter is arranged on the bottom 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 bottom plate 115, and 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.

[0034] 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.

[0035] 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.

[0036] 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 of the connecting rod 132, a sliding block 134 is installed at the bottom of the connecting rod 132, the sliding block 134 is slidably installed in the positioning groove 131, a telescopic rod 135 is slidably inserted in 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. Since the clamping block 136 is provided with the telescopic rod 135 and the telescopic spring 138 inside, the telescopic rod 135 can provide support for the clamping block 136 when contacting the side wall, and the clamping surface of the double clamping block 136 is in contact with the outer shell of the electric meter, so that the assembly stability can be improved.

[0037] See Figure 1 - Figure 6 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. A telescopic spring 138 is provided on the outer sleeve of the telescopic rod 135, and 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.

[0038] During detection, the operator needs to longitudinally push the electric meter along the installation groove 116 to install it with the detector 110. The outer shell of the electric meter gradually approaches the positioning component 130 at the detector 110 as the pushing action progresses. The continuous thrust causes the contact plate 133 to displace. This displacement is transmitted through the connecting rod 132 to the sliding block 134. The sliding block 134 slides on the ramp portion 162 of the auxiliary block 137, and the clamping block 136 extends from the positioning groove 131 to contact 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, thus maintaining the clamping of the electric meter. The setting of the limiting portion 164 is used to limit the movement range of the sliding block 134.

[0039] 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. The end of the insulating protective sleeve 120 is provided with a contact block 123 for contacting the voltage terminal group of the electric meter to be measured. Due to the setting of the contact block 123, the insulating protective sleeve 120 will be blocked outside the voltage terminal group, while the detection needle 121 will be pushed into the voltage terminal group by the first push plate 119 to contact the conductive sheet inside the voltage terminal group.

[0040] A buffer sleeve 140 is sleeved outside the push rod 117. The buffer sleeve 140 is located inside the insulating protective sleeve 120. A buffer cavity 141 is opened in the buffer sleeve 140. A buffer spring 142 is arranged 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 sleeved and engaged with the push rod 117.

[0041] An installation groove 116 is opened on the bottom plate 115. 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 that of the first push plate 119. A groove 144 is opened on the second push plate 143, and the first push plate 119 is movably engaged with the groove 144.

[0042] The bottom plate 115 is provided with a first sliding groove 145 and a second sliding groove 146. The first sliding groove 145 is located on the side of the second sliding groove 146. A first sliding block 147 is installed at the bottom of the first push plate 119, and the first sliding block 147 is slidably inserted into the first sliding groove 145. A second sliding block 148 is installed at the bottom of the second push plate 143, and the second sliding block 148 is slidably inserted into the second sliding 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. Both the second push handle 150 and the first push handle 149 are located outside the detector 110.

[0043] A rotating shaft 151 is installed at the end of the connecting rod 122. 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 inside the insulating protective sleeve 120. The adjusting gear 152 is intermittently engaged with the adjusting rack 118.

[0044] See Figure 5 , Figure 6 , Figure 9 and Figure 10 , after the electric meter is installed on the bottom plate 115, push the first push plate 119 and the second push plate 143 to move the detection head 114 towards the voltage terminal group, so as to make them dock. See Figure 10 , by providing a buffer cavity 141 inside the buffer spring 142, it adapts to the size differences of electric meters of different brands. A buffer spring 142 is arranged inside the buffer cavity 141, so that after the detection needle 121 contacts the conductive sheet, it is still pushed, and the excess force will be absorbed by the buffer spring 142, thereby buffering and protecting the detection needle 121, and at the same time improving the stability of the detection needle 121.

[0045] When pushing the detection needle 121 into the voltage terminal group, the adjusting gear 152 will contact the adjusting rack 118. As the detection needle 121 is continuously pushed towards the voltage terminal group, the adjusting gear 152 will be engaged 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, realizing fast power on and off.

[0046] Through the settings of the first push handle 149 and the second push handle 150, it is convenient for the operator to operate when pushing the first push plate 119 and the second push plate 143. Through the cooperation of the first chute 145 and the first slider 147, and the second chute 146 and the second slider 148, when pushing the first push plate 119 and the second push plate 143, it plays a role of guiding and limiting, thereby improving the docking stability between the detection head 114 and the voltage terminal group.

[0047] When the operator hears an abnormal sound, the first push handle 149 can be manually pulled to drive the detection needle 121 to disengage from the voltage port group in time and retract into the insulating protective sleeve 120, so as to protect the electric meter and the detection device in time.

[0048] In this embodiment: Through the setting of the positioning component 130, the effect of stably clamping the electricity meter to be detected is improved, the problem that the electricity meter and the detector 110 may shift in a vibration scenario only by 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, the adjusting gear 152, and the adjusting 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, and the problems of poor contact or misdetection caused by the probe shift are solved. Through the cooperation of the first push plate 119, the groove, and the first push handle, not only the docking stability between the detection head 114 and the voltage terminal port is improved, but also when abnormal noise is heard, the detection head 114 and the voltage terminal group can be manually disconnected, thereby reducing the safety hazard.

[0049] Embodiment 2. The purpose of this embodiment is to facilitate the solution of the problem that when an unqualified electricity meter is detected, the operator may not be able to react in time, which may lead to a short circuit, generate high-temperature electric arcs or electric sparks, and cause a fire. This embodiment is an improvement based on Embodiment 1. Specifically, please refer to Figure 1 - Figure 11 。

[0050] Nitrogen is stored in the buffer cavity 141. A piston block 139 is slidably installed in the buffer sleeve 140. 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. After the buffer sleeve 140 abuts against the inner wall of the buffer cavity 141, the push rod 117 continues to move, the piston block 139 compresses the buffer spring 142, and the piston block 139 compresses the gas in the buffer sleeve 140.

[0051] See Figure 11 、 Figure 12 , an air supply hole 153 is opened at one end of the buffer sleeve 140 adjacent to the connecting rod 122. A film valve 154 is arranged 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 set as a plastic L-shaped pipe. A placement groove 156 is opened at the front end outside the insulating protective sleeve 120. An airbag 157 is embedded in the placement groove 156. The airbag 157 is connected to the air supply pipe 155 through a trachea. A fixing ring 158 is arranged in the placement groove 156. The fixing ring 158 is engaged with the airbag 157. The fixing ring 158 is used to prevent the airbag from falling off after expansion. A slot 160 is opened 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 set as a rubber ring.

[0052] It should be added that the diaphragm valve 154 generally uses an elastic diaphragm to control the flow of fluid or gas, and realizes the opening and closing through the deformation of the diaphragm. This is a conventional technical means and is well-known to those skilled in the art.

[0053] When an accident causes the airbag 157 to be damaged, the operator only needs to remove the used airbag 157 and snap the new airbag 157 into the placement groove 156 for installation.

[0054] 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, and a sealing ring 161 is installed in the slot 160. The sealing ring 161 is set as a rubber ring.

[0055] Through the setting of the slot 160 provided in the buffer sleeve 140 and the sealing ring 161, when the buffer sleeve 140 is pushed, the leakage of the protective gas can be effectively prevented, thereby improving the protection effect in case of potential safety hazards.

[0056] Through the setting of the first push plate 119, the detection needle 121, the push rod 117, etc., in cooperation with the buffer sleeve 140, the diaphragm valve 154, the air supply pipe 155, the airbag 157, etc., when pushing the first push plate 119 to control the docking of the detection needle 121 with the voltage terminal group, since the buffer sleeve 140 is filled with the protective gas nitrogen, when the detection needle 121 is docked with the conductive sheet, pushing the first push plate 119 controls the buffer sleeve 140 to move into the insulating protective sleeve 120, so that the diaphragm valve 154 in the air supply hole 153 abuts against the air supply pipe 155. Since the air supply pipe 155 is set as a rigid L-shaped pipe, the diaphragm valve 154 can be opened, and the protective gas in the buffer sleeve 140 will be injected into the airbag 157 through the air supply pipe 155, causing the airbag 157 to expand. The expanded airbag 157 extends into the voltage terminal group of the meter to be measured and wraps the detection head 114, thus forming a layer of protection. When an unqualified meter is detected and an arc spark occurs, the high temperature of the arc will break the airbag 157, and at this time the protective gas will be emitted from the airbag 157, thereby providing timely protection for the detector 110 and reducing the accident hazard.

[0057] In this embodiment: Through the settings of the first push plate 119, the detection needle 121, the push rod 117, etc., in cooperation with the buffer sleeve 140, the diaphragm valve 154, the air supply pipe 155, the airbag 157, etc., while detecting the electricity meter, the protection of the device is increased, 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 occurs in a substandard electricity meter during detection, the detector 110 can be protected in time to reduce losses. Thus, when a substandard electricity meter is detected, the operator may not be able to react in time, which may lead to a short circuit, generating a high-temperature arc or electric spark, causing a fire problem.

[0058] It should be noted that in this article, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0059] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope 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 arranged on a side of the detector (110) close to the electric meter, and characterized in that: A bottom plate (115) is installed at the bottom of the detector (110), a positioning assembly (130) is arranged on the bottom plate (115), the detection head (114) comprises 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), the adjustment rack (118) and the connecting rod (122) are in transmission cooperation, a first push plate (119) is installed in the middle of the bottom 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 electric meter under test.

2. The portable electric meter detection device according to claim 1, characterized in that: The positioning assembly (130) comprises a positioning groove (131) provided on the bottom plate (115), a connecting rod (132) being slidably inserted in the positioning groove (131), a contact plate (133) being installed at the top end of the connecting rod (132), a sliding block (134) being installed at the bottom end of the connecting rod (132), the sliding block (134) being slidably installed in the positioning groove (131), a telescopic rod (135) being slidably inserted in the side of the sliding block (134), a clamping block (136) being installed at the end of the telescopic rod (135), and the clamping block (136) being in contact with the electronic port group.

3. The portable electric meter detection device according to claim 2, 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); 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 (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.

4. 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 stopper (123) is installed at the end of the insulating protective sleeve (120) for contacting the voltage terminal group of the electric meter under test.

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

6. 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), an end of the insulating protective sleeve (120) is fixedly inserted in 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).

7. The portable electric meter detection device according to claim 6, 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 at 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).

8. The portable electric meter detection device according to claim 4, 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 on the inner side of the insulating protective sleeve (120), and the adjusting gear (152) is intermittently meshed with the adjusting rack (118).

9. The portable electric meter detection device according to claim 5, 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) via an air pipe. A fixing ring (158) is provided in the placement groove (156), and the fixing ring (158) is engaged with the air bag (157).

10. The portable electric meter detection device according to claim 9, 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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