Electric energy meter testing device

Abstract

The utility model discloses an electric energy meter testing device, belongs to the field of electric energy meter testing, and aims to solve the problems in the prior art that a meter connecting frame, namely a meter support, cannot move, wiring duct wiring does not intersect with a tested electric energy meter, the function is single, multiple tests cannot be directly carried out, the dependence degree on other testing equipment is high, the testing is inconvenient, and the efficiency is low. The device comprises a plurality of guide rail grooves, a plurality of meter supports are arranged on the guide rail grooves, each meter support comprises a locking right block, a locking needle and a spring sleeved on the locking needle are arranged in the locking right block, and a cam rod penetrates through the locking right block and is connected with a locking rocker arm. The meter support can slide and is convenient to lock, the vertical wire penetrates through the mounting base and is tightly attached to the back face of the electric energy meter, the functions are diversified, the dependence degree on other testing equipment is low, synchronous application and continuous interference of the influence of a power frequency magnetic field and magnetic leakage can be achieved, multiple tests can be directly carried out, and the testing is convenient and efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric energy meter test, specifically, it relates to an electric energy meter testing device. BACKGROUND

[0002] The electric energy meter is usually installed in the meter box during actual work, and there are interferences such as leakage magnetic field and power frequency magnetic field, so it is necessary to test the reliability of the electric energy meter. However, the existing electric energy meter testing device has single function, which leads to inconvenient testing.

[0003] Chinese patent publication No. CN211955797U, published on November 17, 2020, the utility model relates to an electric energy meter testing rack, which comprises a testing rack body, the testing rack body is a multi-layer structure, the testing rack body is provided with a plurality of test slots, the test slot is provided with an electric energy meter placing slot, the bottom of the electric energy meter placing slot is provided with a tail seat, the tail seat is welded with the electric energy meter placing slot through a spring, the tail seat is provided with a meter connecting frame for connecting the meter to be tested, a limiting block and a sensor, the electric energy meter placing slot is also provided with an identity recognition device and a wiring end monitoring device, the upper end of the electric energy meter placing slot is provided with a plurality of shock absorbing rods, the upper end of the shock absorbing rod is fixedly connected with the electric energy meter placing slot, and the lower end of the shock absorbing rod is provided with an elastic plate. The electric energy meter testing rack disclosed in the above patent document has simple structure, and the electric energy meter is convenient to install and dismount, but the meter connecting frame, i.e. the meter holder, cannot be moved, the wire slot wiring has no intersection with the measured electric energy meter, the function is single, multiple tests cannot be directly performed, the dependence on other test equipment is high, the testing is inconvenient and inefficient. UTILITY MODEL CONTENT

[0004] In view of the problems of the prior art that the meter connecting frame, i.e. the meter holder, cannot be moved, the wire slot wiring has no intersection with the measured electric energy meter, the function is single, multiple tests cannot be directly performed, the dependence on other test equipment is high, the testing is inconvenient and inefficient, the utility model provides an electric energy meter testing device, a plurality of meter holders are arranged on the guide rail groove, the meter holder is slidable and convenient to lock, the vertical wiring passes through the mounting seat and closely contacts the back of the electric energy meter, the function is various, the dependence on other test equipment is low, the synchronous application and continuous interference of the power frequency magnetic field and the leakage magnetic field can be realized, multiple tests can be directly performed, the testing is convenient and efficient.

[0005] In order to solve the above technical problems, the utility model discloses the following technical scheme: a kind of electric energy meter testing device, comprising: several guide rail grooves, several table holders are equipped on the guide rail groove;The table holder includes locking right block, locking needle and spring are equipped in the locking right block and are sleeved on it;Cam rod passes through the locking right block and locking rocker arm connection.The utility model, its adopt guide rail groove and be equipped with several table holders, table holder is slidably and lock is convenient, vertical wiring passes through mounting seat and is close to electric energy meter back, and function is various, and the dependence degree of other test equipment is low, can realize the synchronous exertion and continuous interference of power frequency magnetic field and magnetic flux leakage, can directly carry out multiple test, test is convenient and efficient.

[0006] As preferred, the cam rod is provided with a cam, and the cam rod and the locking needle abut. When the table holder is in an unlocked state, the non-cam part of the cam rod abuts against the locking needle, and when the table holder is in a locked state, the cam part of the cam rod abuts against the locking needle.

[0007] As preferred, the locking right block is provided with a locking needle pressing hole, and the diameter of the locking needle pressing hole is smaller than that of the locking needle mounting hole on the locking right block. With this design, the diameter of the locking needle pressing hole is smaller than that of the locking needle mounting hole, so that the locking needle with the spring can be mounted and abut against the spring, and the needle head of the locking needle can pass through the locking needle pressing hole.

[0008] As preferred, a small gap is provided between the locking right block and the front shell. The size of the gap between the locking right block and the front shell is determined through a large number of experiments. If the gap is too large, the locking function cannot be achieved, and if the gap is too small, the locking is laborious.

[0009] As preferred, the table holder further comprises a mounting seat, the locking right block is further provided with a groove, and the mounting seat and the locking right block are connected through the groove. With this design, the locking assembly is connected with the mounting seat, so that the table holder has the locking function.

[0010] As preferred, the table holder further comprises a sliding member, and the sliding member is arranged in the guide rail groove. With this design, the table holder has the sliding function.

[0011] As preferred, a synchronous strip is arranged on both sides of the mounting seat, and the synchronous strip is arranged in the vertical direction. The same side of the mounting seats of the table holders in the vertical direction is a same synchronous strip. With this design, the table holder group composed of the table holders in the vertical direction can slide as a whole.

[0012] As preferred, a vertical wiring passes through the mounting seat, and the vertical wiring is connected with the plurality of conductive columns arranged on the mounting seat. After the electric energy meter to be tested is installed on the table holder, the vertical wiring passes through the mounting seat and is close to the back of the electric energy meter to be tested.

[0013] As preferred, the electric energy meter testing device further comprises a plurality of strip-shaped slots formed on the front shell, and the strip-shaped slots are arranged in parallel.

[0014] As preferred, the mounting seat passes through the strip-shaped slots, and a gap is left between the mounting seat and the strip-shaped slots. The gap left between the mounting seat and the strip-shaped slots is for the smooth sliding of the meter holder.

[0015] Compared with the prior art, the utility model has the advantages of: (1) the plurality of meter holders are arranged on the guide rail slots, and the sliding members arranged on the meter holders are arranged in the guide rail slots, so that the meter holders have the function of sliding; (2) the locking right block is provided with a locking needle and a spring sleeved thereon, the cam rod passes through the locking right block and the locking rocker arm, the locking assembly is connected with the mounting seat, so that the meter holder has the function of locking, and the locking is convenient; (3) the two sides of the mounting seat are provided with synchronous strips, the same side of the mounting seats of the plurality of meter holders in the vertical direction is a same synchronous strip, so that the meter holder group composed of the plurality of meter holders in the vertical direction can slide integrally; (4) the vertical wiring passes through the mounting seat and is close to the back of the electric energy meter, and in combination with the slidable and lockable meter holder, the synchronous application and continuous interference of the power frequency magnetic field and the magnetic flux leakage can be realized; (5) the utility model has multiple functions, has low dependence on other testing equipment, can directly perform multiple tests, and is convenient and efficient in testing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the internal perspective view of the utility model.

[0017] Figure 2 is the perspective view of the meter holder of the utility model.

[0018] Figure 3 is the exploded view of the meter holder of the utility model.

[0019] Figure 4 is the front view of the utility model.

[0020] Figure 5 is the sectional view of the utility model at A-A. Figure 4

[0021] Figure 6 is the enlarged view of the utility model at I. Figure 5

[0022] ​​In the diagram: 1. Housing, 11. Front housing, 111. Mounting area, 112. Strip groove, 113. Guide rail groove, 12. Rear housing, 2. Watch holder assembly, 21. Watch holder, 211. Mounting base, 212. Conductive post, 213. Sliding component, 214. Locking left block, 215. Locking right block, 2151. Locking pin mounting hole, 2152. Hole plug, 2153. Locking pin push-out hole, 2154. Cam rod mounting hole, 2155. Groove, 216. Locking pin, 217. Spring, 218. Cam rod, 2181. Cam, 2182. Connecting part, 219. Locking rocker arm, 22. Synchronizing bar, 23. Vertical wiring, 3. Inlet tube. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings.

[0024] Example:

[0025] like Figures 1 to 6 The illustrated electricity meter testing device includes several guide rail grooves 113. In this embodiment, the electricity meter testing device includes four guide rail grooves 113. All four guide rail grooves 113 are upward-facing, horizontally and equally spaced vertically distributed in parallel. The opening width on the upper surface of each guide rail groove 113 is smaller than the internal width of the groove. This is to prevent the sliding member 213 from dislodging from the groove, ensuring stable and reliable sliding. All four guide rail grooves 113 are fixedly connected to the front housing 11 of the electricity meter testing device.

[0026] The guide rail groove 113 is provided with a plurality of meter holders 21. In this embodiment, the energy meter testing device is provided with four meter holders 21 on each guide rail groove 113, and a total of sixteen meter holders 21 are provided, forming a 4×4 array.

[0027] The meter holder 21 comprises a mounting seat 211, which is L-shaped and comprises a horizontal block and a vertical block. The upper surface of the mounting seat 211, i.e. the upper surface of the horizontal block, is provided with a plurality of conductive columns 212. In this embodiment, the upper surface of the mounting seat 211 is vertically provided with eight conductive columns 212, which are located on the same straight line. The distance between the conductive columns 212 is set according to actual requirements. The eight conductive columns 212 are used to electrically connect the measured electric energy meter installed on the meter holder 21. The meter holder 21 further comprises sliding members 213. In this embodiment, the sliding members 213 are pulleys. The sliding members 213 are arranged at the bottom of the mounting seat 211, i.e. the lower surface of the vertical block. The bottom of the mounting seat 211 is provided with two sliding assemblies, each of which comprises two sliding members 213. The design of the sliding members 213 at the bottom of the mounting seat 211 of the meter holder 21 enables the meter holder 21 to have a sliding function. The sliding members 213 are arranged in the guide grooves 113. The width of the sliding members 213 is slightly smaller than the width of the inside of the guide grooves 113, and the height of the sliding members 213 is slightly smaller than the height of the inside of the guide grooves 113. After the sliding members 213 are installed in the guide grooves 113, a certain gap is left between the sliding members 213 and the four sides of the inside of the guide grooves 113, thereby ensuring that the sliding members 213 can smoothly slide in the guide grooves 113 without jamming.

[0028] The meter holder 21 further comprises a cam rod 218, which is provided with a cam 2181 structure. In this embodiment, one cam 2181 is arranged on the same side of each end of the cam rod 218. The shape and size of the cams 2181 are the same to ensure consistency of the locking of the two ends. The right end of the cam rod 218 is provided with a connecting portion 2182, the cross section of which is square. The connecting portion 2182 is used to lock the transmission connection between the rocker arm 219 and the cam rod 218. The meter holder 21 further comprises a locking needle 216 and a spring 217. The inner diameter of the spring 217 is greater than the outer diameter of the needle head of the locking needle 216, and the outer diameter of the spring 217 is less than or equal to the outer diameter of the needle cap of the locking needle 216. The spring 217 is sleeved on the needle head of the locking needle 216 and abuts against the needle cap of the locking needle 216. In this embodiment, the meter holder 21 comprises two groups of locking needles 216 and springs 217.

[0029] The table holder 21 further comprises a locking left block 214 and a locking right block 215. The front surface of the locking right block 215 is provided with a locking needle mounting hole 2151, and the rear surface of the locking right block 215 is provided with a locking needle pressing hole 2153, which are in communication with each other. A hole plug 2152 is arranged at the entrance of the locking needle mounting hole 2151. The inner diameter of the locking needle mounting hole 2151 is equal to the outer diameter of the needle cap of the locking needle 216, the inner diameter of the locking needle pressing hole 2153 is equal to the outer diameter of the needle head of the locking needle 216, and the inner diameter of the locking needle pressing hole 2153 is smaller than the outer diameter of the spring 217 and the inner diameter of the locking needle mounting hole 2151. The purpose of this structure design is that the locking needle 216, which is sleeved with the spring 217, can be installed in the locking right block 215 and abut against the spring 217, while allowing the needle head of the locking needle 216 to stably pass through the locking needle pressing hole 2153. The locking right block 215 is further provided with a cam rod mounting hole 2154, which penetrates through the left and right sides of the locking right block 215. The inner diameter of the cam rod mounting hole 2154 is greater than the outer diameter of the cam rod 218, so that the cam rod 218 can rotate smoothly in the cam rod mounting hole 2154.

[0030] The locking needle 216 and the spring 217 sleeved thereon are installed into the locking right block 215 through the locking needle mounting hole 2151. During the installation process, the locking needle 216 and the spring 217 sleeved thereon are pressed downward along the locking needle mounting hole 2151 until one end of the spring 217 contacts the bottom of the locking needle mounting hole 2151. The spring 217 is elastically deformed, and the needle head of the locking needle 216 is pressed out of the locking needle pressing hole 2153. At this time, the installation of the locking needle 216 and the spring 217 sleeved thereon is completed, and the hole plug 2152 is installed at the entrance of the locking needle mounting hole 2151. The connecting portion 2182 of the cam rod 218 penetrates through the cam rod mounting hole 2154 of the locking right block 215 and is connected with the locking rocker arm 219. The locking rocker arm 219 is provided with a mounting groove matched with the connecting portion 2182 of the cam rod 218. After the right end of the cam rod 218 is installed, the cam rod 218 abuts against the locking needle 216. Specifically, when the table holder 21 is in an unlocked state, the non-cam portion of the cam rod 218 abuts against the needle cap of the locking needle 216; when the table holder 21 is in a locked state, the cam 2181 portion of the cam rod 218 abuts against the needle cap of the locking needle 216.

[0031] The locking right block 215 is also provided with a groove 2155, which is a U-shaped groove in this embodiment, and is formed in the upper inner side of the locking right block 215. The width of the groove 2155 is consistent with the thickness of the horizontal block of the mounting seat 211, and the horizontal block of the mounting seat 211 and the locking right block 215 are connected through the groove 2155.

[0032] The locking left block 214 and the locking right block 215 are almost the same in appearance but different in fact. The front surface of the locking left block 214 is provided with a locking needle mounting hole 2151, and the rear surface of the locking left block 214 is provided with a locking needle pressing hole 2153, which are through each other. The entrance of the locking needle mounting hole 2151 is provided with a hole plug 2152. The inner diameter of the locking needle mounting hole 2151 is equal to the outer diameter of the needle cap of the locking needle 216, the inner diameter of the locking needle pressing hole 2153 is equal to the outer diameter of the needle head of the locking needle 216, and the inner diameter of the locking needle pressing hole 2153 is smaller than the outer diameter of the spring 217 and the inner diameter of the locking needle mounting hole 2151. The purpose of this structure design is that the locking needle 216, which is sleeved with the spring 217, can be installed in the locking left block 214 and abut against the spring 217, while allowing the needle head of the locking needle 216 to stably pass through the locking needle pressing hole 2153. The right side surface of the locking left block 214 is provided with a cam rod mounting hole 2154, which does not pass through the left and right sides of the locking left block 214. The inner diameter of the cam rod mounting hole 2154 is greater than the outer diameter of the cam rod 218, so that the cam rod 218 can rotate smoothly in the cam rod mounting hole 2154.

[0033] The locking needle 216 and the spring 217 sleeved thereon are installed into the locking left block 214 through the locking needle mounting hole 2151. During the installation, the locking needle 216 and the spring 217 sleeved thereon are pressed downwards along the locking needle mounting hole 2151 until the end of the spring 217 contacts with the bottom of the locking needle mounting hole 2151, the spring 217 is elastically deformed, and the needle head of the locking needle 216 is pressed out of the locking needle pressing-out hole 2153. At this time, the installation of the locking needle 216 and the spring 217 sleeved thereon is completed, and the hole plug 2152 is installed at the entrance of the locking needle mounting hole 2151. Then, the left end of the cam rod 218 is installed into the cam rod mounting hole 2154 of the locking left block 214. After the left end of the cam rod 218 is installed, the cam rod 218 abuts against the locking needle 216. Specifically, when the watch holder 21 is in the unlocked state, the non-cam part of the cam rod 218 abuts against the needle cap of the locking needle 216; when the watch holder 21 is in the locked state, the cam part 2181 of the cam rod 218 abuts against the needle cap of the locking needle 216.

[0034] The locking left block 214 is also provided with a groove 2155. In this embodiment, the groove 2155 is a U-shaped groove, which is arranged on the inner side of the upper part of the locking left block 214. The width of the groove 2155 is consistent with the thickness of the horizontal block of the mounting seat 211, and the horizontal block of the mounting seat 211 and the locking left block 214 are connected through the groove 2155. This design connects the locking assembly and the mounting seat 211, so that the watch holder 21 has the locking function and is convenient to lock.

[0035] The electric energy meter testing device also comprises a shell 1, which is composed of a front shell 11 and a rear shell 12. A rectangular mounting area 111 is arranged on the front shell 11. During actual use, a technician installs and dismounts the measured electric energy meter in the mounting area 111, and performs sliding and locking operations on the watch holder 21 and the measured electric energy meter as a whole. A plurality of strip-shaped grooves 112 are arranged in the mounting area 111. In this embodiment, four strip-shaped grooves 112 are arranged in the mounting area 111, which are horizontally and vertically distributed in parallel at equal intervals. The four strip-shaped grooves 112 correspond to the four guide rail grooves 113 respectively, and the four guide rail grooves 113 are fixedly connected with the front shell 11 of the electric energy meter testing device.

[0036] The horizontal block of the mounting base 211 of the table holder 21 horizontally passes through the strip-shaped slot 112 opened in the mounting area 111, and a gap is left between the horizontal block of the mounting base 211 and the upper and lower ends of the strip-shaped slot 112. The gap left between the horizontal block of the mounting base 211 and the upper and lower ends of the strip-shaped slot 112 is for the purpose of allowing the table holder 21 to smoothly slide in the presence of the front shell 11. The locking right block 215 and the front shell 11 of the electric energy meter testing device are provided with a small gap, and the size of the gap between the locking right block 215 and the front shell 11 is determined by technicians through a large number of experiments. If the gap is too large, the locking needle 216 cannot play a locking role. If the gap is too small, it is laborious to lock using the locking rocker arm 219, and even the related components can be damaged.

[0037] The vertical wire 23 passes through the mounting base 211. In this embodiment, the vertical wire 23 is composed of four wires. The vertical wire 23 is connected with the eight conductive columns 212 provided on the mounting base 211. After the electric energy meter to be tested is installed on the table holder 21, the vertical wire 23 passes through the mounting base 211 and closely adheres to the back of the electric energy meter to be tested. The four table holders 21 in the vertical direction are connected with the same vertical wire 23, i.e. the same four wires. The vertical wire 23 passes through the mounting base 211 and closely adheres to the back of the electric energy meter to be tested, and in combination with the slidable and lockable table holder 21, the synchronous application and continuous interference of the power frequency magnetic field and the magnetic flux leakage can be realized.

[0038] The mounting base 211 is provided with a synchronous strip 22 on each side, and the two synchronous strips 22 are longitudinally arranged. In this embodiment, the same side of the mounting base 211 of the four table holders 21 in the vertical direction is provided with the same synchronous strip 22, which allows the table holder group 2 composed of the four table holders in the vertical direction to be integrally slid. The 4×4 table holder 21 array in the electric energy meter testing device described in this embodiment is composed of four table holder groups 2, and the four table holder groups 2 can be integrally slid. The upper part of the rightmost table holder group 2 is connected with the incoming line pipe 3. The electric energy meter testing device described in this embodiment has various functions, low dependence on other testing equipment, can directly perform multiple tests, and is convenient and efficient for testing, which solves the problems of the prior art that the table holder cannot be moved, the wire slot wire has no intersection with the electric energy meter to be tested, the function is single, multiple tests cannot be directly performed, the dependence on other testing equipment is high, and the testing is inconvenient and inefficient.

[0039] The above-described embodiments are only the preferred schemes of the present application, and do not limit the present application in any form, although the present application is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or some technical features therein can be replaced equivalently, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electric energy meter testing device, characterized by, The utility model relates to a table support device, including: A plurality of guide grooves are provided with a plurality of table supports; The table support includes a locking right block, the locking right block is internally provided with a locking needle and a spring sleeved on it; The cam rod passes through the locking right block and the locking rocker arm connection.

2. The electric energy meter testing device according to claim 1, characterized in that, The cam rod is provided with a cam, and the cam rod and the locking needle abut.

3. The electric energy meter testing device according to claim 1 or 2, characterized in that, The locking right block is provided with a locking needle pressing hole, and the diameter of the locking needle pressing hole is smaller than the diameter of the locking needle mounting hole on the locking right block.

4. The electric energy meter testing device according to claim 1, characterized in that, The locking right block and the front shell gap are arranged.

5. The electric energy meter testing device according to claim 4, characterized in that, The table support further includes a mounting seat, and the locking right block is further provided with a groove, and the mounting seat and the locking right block are connected through the groove.

6. The electric energy meter testing device according to claim 1 or 2 or 4 or 5, characterized in that, The table support further includes a sliding piece, and the sliding piece is placed in the guide groove.

7. The electric energy meter testing device according to claim 5, wherein, Both sides of the mounting seat are provided with synchronous strips, and the synchronous strips are longitudinally arranged.

8. The electric energy meter testing device according to claim 5 or 7, characterized in that, Vertical wiring passes through the mounting seat, and the vertical wiring is connected with a plurality of conductive columns arranged on the mounting seat.

9. The electric energy meter testing device according to claim 5, wherein, Further including a plurality of strip-shaped grooves opened on the front shell, the strip-shaped grooves are arranged in parallel.

10. The electric energy meter testing device according to claim 9, wherein, The mounting seat passes through the strip-shaped groove, and a gap is left between the mounting seat and the strip-shaped groove.

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