Three-phase uninterruptible meter changing device and three-phase uninterruptible meter changing method

Abstract

The invention relates to the technical field of power equipment, in particular to a three-phase power-off-free meter changing device and method. The device comprises a meter changing instrument box body and two protective covers, each protective cover comprises a cover body, four insertion columns and four surrounding plates, and fixing protrusions are arranged at the four end corners of a first meter position and the four end corners of a second meter position; due to the fact that the inserting columns matched with the fixing holes in the fixing protrusions are arranged at the four bottom corners of the cover body, stable installation is achieved by inserting the inserting columns into the fixing holes, the surrounding plates are arranged between the adjacent inserting columns, the isolation and protection effects can be further achieved, meanwhile, the disassembling and assembling protrusions are arranged on the two sides of the top end of the cover body, and the cover body is convenient to disassemble and assemble. The protective cover can be conveniently taken down when the meter position needs to be operated, and can be assembled after the operation is completed. By adopting the above structure, during a non-operation period, the protective cover can completely shield the thimble type socket, thereby preventing the live exposed thimble from contacting a human body or other conductive objects caused by mistaken touch or negligence, effectively reducing the risk of electric shock accidents, and improving the operation safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a three-phase non-stop meter changing device and method. BACKGROUND

[0002] In the operation and maintenance process of the power system, as the key equipment for measuring power consumption, the regular replacement and maintenance of the electric meter is an important link to ensure the accuracy of power measurement and stable operation of the system. However, for some users with special power demand, such as hospitals, data centers, etc., the power consumption process cannot be interrupted, otherwise it may cause serious economic loss or even endanger life safety. Therefore, the research and application of three-phase non-stop meter changing technology can complete the replacement of the electric meter without interrupting the power supply of the user, which has become an important problem to be solved in the power industry.

[0003] The basic structure of the existing three-phase non-stop meter changing device usually includes a meter changing instrument main body, a wiring assembly and a monitoring and protection module. The meter changing instrument main body is provided with a plurality of meter positions for fixing new and old meters; the wiring assembly includes a piercing branch distributor, a special tool for a wiring box, etc., for realizing the electrical connection between the on-site electric meter and the meter changing instrument; the monitoring and protection module has functions of phase sequence discrimination, voltage monitoring, current monitoring and fault alarm, etc., which can monitor the electrical parameters in the meter changing process in real time, and issue an alarm when an abnormality occurs, and take corresponding protection measures at the same time.

[0004] However, the meter positions in the existing three-phase non-stop meter changing device are mostly bare pin-type socket structures, which are easy to cause electric shock accidents and have great safety hazards due to the contact of the live bare pins with the human body or other conductive objects caused by accidental touch or negligence during the operation process. SUMMARY

[0005] The present application aims to provide a three-phase non-stop meter changing device and method, which solves the technical problem of the existing three-phase non-stop meter changing device, in which the meter positions are mostly bare pin-type socket structures, which are easy to cause electric shock accidents and have great safety hazards due to the contact of the live bare pins with the human body or other conductive objects caused by accidental touch or negligence during the operation process.

[0006] To achieve the above-mentioned purpose, the present application provides a three-phase non-stop meter changing device, which comprises a meter changing instrument box body and two protective covers, the top end of the meter changing instrument box body is provided with a box cover, the end face of the meter changing instrument box body is provided with a meter position installation area, an operation button area, an indicator light display area and a wiring port area, the first meter position and the second meter position are arranged at the meter position safety area, the first meter position and the second meter position are both in pin-type socket structure, and the protective cover is arranged at the first meter position and the second meter position;

[0007] Each of the protective covers comprises a cover body, four insertion columns and four surrounding plates, four end corners of the first and second table positions are respectively provided with fixed protrusions, each of the fixed protrusions is provided with a fixed hole, four bottom corners of each of the cover bodies are provided with the insertion columns, each of the insertion columns is matched with one of the fixed holes, the surrounding plates are arranged between every two adjacent insertion columns, the surrounding plates are located between the corresponding two fixed protrusions, and both sides of the top end of each of the cover bodies are provided with dismounting protrusions.

[0008] Wherein, one of the fixed protrusions at the first table position and one of the fixed protrusions at the second table position are provided with an anti-misoperation plug structure, each of the anti-misoperation plug structures comprises a mounting protrusion, a fixed column, a pulling rod and a reset spring, the mounting protrusion is fixedly installed on the side of the corresponding fixed protrusion, the inside of the mounting protrusion is provided with a sliding groove, the sliding groove penetrates the side of the corresponding fixed protrusion, the fixed column is slidably arranged in the sliding groove, the reset spring is arranged between the end of the fixed column away from the corresponding fixed hole and the inner bottom of the mounting protrusion, the side of the insertion column of the cover body corresponding to the fixed protrusion provided with the mounting protrusion is provided with an insertion hole, the insertion hole is matched with the fixed column, the end of the fixed column away from the corresponding insertion column is further provided with the pulling rod, and the end of the pulling rod away from the fixed column extends to the outside of the mounting protrusion.

[0009] Wherein, each of the pulling rods comprises a rod body, a fixed block and a pull ring, one end of the rod body is fixedly provided with the fixed block, and the other end of the rod body is fixedly provided with the pull ring, the pull ring is located outside the mounting protrusion, and the fixed block is connected with the fixed column.

[0010] Wherein, each of the fixed columns is provided with a limiting block on both sides, and each of the sliding grooves is provided with a limiting groove on both sides, and the limiting block is matched with the limiting groove.

[0011] Wherein, the upper surface of the end of each of the fixed columns close to the corresponding insertion column is provided with a first inclined surface, and the bottom of each of the insertion columns provided with the insertion hole is provided with a second inclined surface on the side facing the corresponding fixed column, and the second inclined surface is matched with the first inclined surface.

[0012] Wherein, the three-phase uninterrupted meter changing device further comprises a cover plate, the bottom of the table position mounting area is further provided with a placing area, the placing area is used for placing the protective cover, and the top end of the placing area is provided with the cover plate.

[0013] The application further provides a three-phase uninterrupted meter changing method applied to the three-phase uninterrupted meter changing device, and comprising the following steps:

[0014] fix the new meter at the first meter position of the meter installation area, check whether the piercing distribution box and the terminal box special tool at the terminal port area are intact;

[0015] use the piercing distribution box and the terminal box special tool to replace the meter that needs to be replaced on site;

[0016] operate the switch corresponding to the first meter position at the operation button area to switch to gear 1, and observe the indicator light display area to ensure that the state is normal;

[0017] If all the indicator lights of the indicator light display area are green, after removing the old meter and fixing it at the second meter position, operate the switch corresponding to the second meter position at the operation button area to switch to gear 1, and after switching the switch corresponding to the first meter position at the operation button area to gear 0, remove the new meter from the first meter position, install it at the user meter position, and record the electricity;

[0018] After recording the electricity of the old meter, operate the switch corresponding to the second meter position at the operation button area to switch to gear 0, and remove the old meter by disconnecting the detection button at the operation button area;

[0019] After disconnecting the power button of the meter replacement instrument box, remove the meter replacement special harness and special connection tool, and complete the meter replacement.

[0020] The three-phase uninterrupted meter replacement device and method comprises a meter replacement instrument box and two protective covers, each of the protective covers comprises a cover body, four insertion columns and four surrounding plates, an end surface of the meter replacement instrument box is provided with a meter installation area, the meter safety area is provided with a first meter position and a second meter position, the first meter position and the second meter position both adopt a thimble type socket structure, the four bottom corners of the cover body are all provided with the insertion columns matched with the fixing holes on the fixing protrusions, the insertion columns are inserted into the fixing holes to realize stable installation, the surrounding plates are arranged between the adjacent insertion columns to further play an isolation and protection role, the dismounting protrusions are arranged at the two sides of the top end of the cover body to facilitate removing the protective cover when the meter position needs to be operated, and the protective cover is installed back after the operation is completed. By adopting the above structure, during a non-operation period, the protective cover can completely shield the thimble type socket, avoid the naked thimble in a live state from contacting the human body or other conductive objects due to accidental touch or negligence, effectively reduce the risk of electric shock accidents, and improve the operation safety. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0022] Figure 1 is a structural schematic diagram of a three-phase uninterrupted meter changing device according to the first embodiment of the present application.

[0023] Figure 2 is a partial structural enlarged view of A in Figure 1

[0024] Figure 3 is a bottom structural schematic diagram of the protective cover in the first embodiment of the present application.

[0025] Figure 4 is an internal structural schematic diagram of the mounting protrusion in the first embodiment of the present application.

[0026] Figure 5 is a structural schematic diagram of a three-phase uninterrupted meter changing device according to the second embodiment of the present application.

[0027] Figure 6 is a partial structural enlarged view of B in Figure 5

[0028] Figure 7 is a step flow chart of the three-phase uninterrupted meter changing method according to the present application.

[0029] 101-meter changing instrument box body, 102-cover body, 103-inserting column, 104-enclosure, 105-box cover, 106-meter position installation area, 107-operation button area, 108-indicator light display area, 109-wiring port area, 110-first meter position, 111-second meter position, 112-fixing protrusion, 113-fixing hole, 114-disassembly and assembly protrusion, 115-mounting protrusion, 116-fixing column, 117-return spring, 118-sliding groove, 119-jack, 120-rod body, 121-fixing block, 122-pull ring, 123-limiting block, 124-limiting groove, 125-first inclined surface, 126-second inclined surface, 201-cover plate, 202-placing area, 203-clamping hole, 204-clamping column, 205-disassembly and assembly handle. DETAILED DESCRIPTION

[0030] ​​Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0031] First embodiment:

[0032] Please refer to Figures 1 to 4 , wherein Figure 1 is a structural schematic diagram of a three-phase uninterrupted meter changing device of the first embodiment, Figure 2 is Figure 1 a partial structural enlarged view of A of Figure 3 is a bottom structural schematic diagram of a protective cover in the first embodiment, Figure 4 is an internal structural schematic diagram of a mounting protrusion in the first embodiment.

[0033] The present application provides a three-phase uninterrupted meter changing device, comprising a meter changing instrument box body 101 and two protective covers, each of the protective covers comprising a cover body 102, four insertion columns 103 and four surrounding plates 104. The foregoing scheme solves the problem that in the existing three-phase uninterrupted meter changing device, the meter positions are mostly bare pin type socket structures, which are easy to cause electric shock accidents and have great safety hazards due to accidental contact or negligence during operation. It can be understood that the foregoing scheme can be used in the structure of the three-phase uninterrupted meter changing device.

[0034] In this specific embodiment, the top of the meter replacement box 101 is provided with a box cover 105. The end face of the meter replacement box 101 is provided with a meter mounting area 106, an operation button area 107, an indicator light display area 108, and a wiring port area 109. A first meter position 110 and a second meter position 111 are provided in the meter mounting area. Both the first meter position 110 and the second meter position 111 adopt a pin-type socket structure. First, the new meter is fixed in the first meter position 110 in the meter mounting area 106, and the piercing splitter and junction box special tool in the wiring port area 109 are checked to see if they are intact. Then, the piercing splitter is used to connect the meter to be replaced on site, and the junction box special tool is used to connect the meters. Then, the switch corresponding to the first meter position 110 in the operation button area 107 is operated to switch... Switch to position 1 and observe the indicator light display area 108 to ensure it is in normal condition. If all indicator lights in the indicator light display area 108 are green, remove the old meter and fix it at the second meter position 111. Then, switch the switch at the operation button area 107 corresponding to the second meter position 111 to position 1 and switch the switch at the operation button area 107 corresponding to the first meter position 110 to position 0. Remove the new meter from the first meter position 110, install it at the user's meter position, and record the power consumption. Simultaneously, record the power consumption of the old meter. Then, switch the switch at the operation button area 107 corresponding to the second meter position 111 to position 0, disconnect the detection button at the operation button area 107, remove the old meter, and finally disconnect the power button of the meter replacement device housing 101. Remove the meter replacement wiring harness and special connecting tools to complete the meter replacement.

[0035] The first epitope 110 and the second epitope 111 are provided with fixed protrusions 112 at four corners, and each fixed protrusion 112 is provided with a fixed hole 113. Four bottom corners of each cover body 102 are provided with the insertion column 103, and each insertion column 103 is matched with the fixed hole 113. The surrounding plate 104 is arranged between two adjacent insertion columns 103 and two fixed protrusions 112. Two sides of the top end of each cover body 102 are provided with dismounting protrusions 114. The four bottom corners of the cover body 102 are provided with the insertion column 103 matched with the fixed hole 113 of the fixed protrusion 112. The insertion column 103 is inserted into the fixed hole 113 to achieve stable installation. The surrounding plate 104 is arranged between two adjacent insertion columns 103 to further play an isolation and protection role. The dismounting protrusions 114 are arranged on both sides of the top end of the cover body 102 to facilitate the removal of the protective cover when the epitope needs to be operated. After the operation is completed, the protective cover is reinstalled. The above structure can completely shield the needle socket when it is not operated, avoid the contact between the live exposed needle and the human body or other conductive objects due to accidental touch or negligence, effectively reduce the risk of electric shock accidents, and improve the operation safety.

[0036] Secondly, one of the fixed protrusions 112 at the first epitope 110 and one of the fixed protrusions 112 at the second epitope 111 are provided with an anti-mis-touch plug structure, each of the anti-mis-touch plug structures comprises a mounting protrusion 115, a fixed column 116, a pulling rod and a return spring 117, the mounting protrusion 115 is fixedly installed on the side of the corresponding fixed protrusion 112, the inside of the mounting protrusion 115 is provided with a sliding groove 118, the sliding groove 118 penetrates through the side of the corresponding fixed protrusion 112, the inside of the sliding groove 118 is slidably provided with the fixed column 116, the end of the fixed column 116 away from the corresponding fixed hole 113 is provided with the return spring 117 between the inner bottom of the mounting protrusion 115, the side of the plug column 103 of the cover body 102 corresponding to the fixed protrusion 112 provided with the mounting protrusion 115 is provided with a plug hole 119, the plug hole 119 is matched with the fixed column 116, the end of the fixed column 116 away from the corresponding plug column 103 is further provided with the pulling rod, the end of the pulling rod away from the fixed column 116 extends to the outside of the mounting protrusion 115, the fixed column 116 in the sliding groove 118 in the mounting protrusion 115 is matched with the plug hole 119 in the side of the corresponding plug column 103 of the cover body 102, the return spring 117 is used to keep the fixed column 116 inserted into the plug hole 119 without external force, to prevent the protective cover from accidentally falling off, and the fixed column 116 can be manually pulled out of the plug hole 119 through the pulling rod, so as to disassemble the protective cover, this design not only enhances the stability of the installation of the protective cover, avoids the displacement of the protective cover caused by mis-touch and exposes the thimble to cause danger, but also conveniently removes the protective cover when operation is needed, improves the safety and operation convenience of the whole device.

[0037] Meanwhile, each of the pulling rods comprises a rod body 120, a fixed block 121 and a pull ring 122, one end of the rod body 120 is fixedly provided with the fixed block 121, the other end of the rod body 120 is fixedly provided with the pull ring 122, the pull ring 122 is located outside the mounting protrusion 115, the fixed block 121 is connected with the fixed column 116, through the setting of the pull ring 122, when the pulling rod is pulled, the operation is more convenient.

[0038] In addition, each of the fixed columns 116 is provided with a limiting block 123 on both sides, each of the sliding grooves 118 is provided with a limiting groove 124 on both sides, the limiting block 123 is matched with the limiting groove 124, through the setting of the limiting block 123 and the limiting groove 124, when the fixed column 116 slides in the sliding groove 118, the structure is more stable.

[0039] And, each of the fixed columns 116 is provided with a first inclined surface 125 near the upper surface of one end of the corresponding insertion column 103, and the bottom of each insertion column 103 provided with the insertion hole 119 is provided with a second inclined surface 126 on the side facing the corresponding fixed column 116, which is matched with the first inclined surface 125. Through the arrangement of the first inclined surface 125 and the second inclined surface 126, when the insertion column 103 is inserted into the corresponding fixed hole 113 during the installation of the protective cover, the second inclined surface 126 exerts force on the first inclined surface 125, so that the fixed column 116 slides in the sliding groove 118, and at this time the reset spring 117 is in a compressed state. When the insertion column 103 is completely inserted into the fixed hole 113, the fixed column 116 is aligned with the insertion hole 119, and under the action of the restoring force of the reset spring 117, the fixed column 116 is inserted into the insertion hole 119, completing the fixation of the protective cover.

[0040] When using a three-phase uninterrupted meter changing device of the present embodiment, the insertion column 103 matched with the fixed hole 113 on the fixed protrusion 112 is inserted into the fixed hole 113 to achieve stable installation, and the surrounding plate 104 is arranged between adjacent insertion columns 103 to further play a role in isolation and protection. At the same time, the dismounting protrusion 114 is arranged at the top end of the cover body 102 on both sides, which facilitates the removal of the protective cover when the meter needs to be operated, and the protective cover is reinstalled after the operation is completed. With the above structure, during the non-operation period, the protective cover can completely shield the thimble socket, avoiding the risk of electric shock caused by accidental contact or negligence of the exposed live thimble with the human body or other conductive objects, effectively reducing the risk of electric shock accidents and improving the safety of operation. And through the matching of the fixed column 116 in the sliding groove 118 in the mounting protrusion 115 with the insertion hole 119 on the side of the corresponding insertion column 103 of the cover body 102, the reset spring 117 is used to keep the fixed column 116 inserted into the insertion hole 119 without external force, preventing the protective cover from accidentally falling off, and the fixed column 116 can be manually pulled out of the insertion hole 119 by the pulling rod to facilitate the disassembly of the protective cover. This design not only enhances the stability of the protective cover installation and avoids the risk of thimble exposure caused by displacement of the protective cover due to accidental touch, but also facilitates the safe and convenient removal of the protective cover when needed, improving the overall safety and operational convenience of the device.

[0041] Second embodiment:

[0042] Based on the first embodiment, please refer to Figure 5 and Figure 6 , Figure 5It is a structural schematic view of a three-phase uninterrupted meter changing device of a second embodiment, Figure 6 It is Figure 5 A partial structural enlarged view at B.

[0043] The three-phase uninterrupted meter changing device further comprises a cover plate 201.

[0044] For this specific embodiment, the bottom of the meter installation area 106 is further provided with a placing area 202 for placing the protective cover, and the top end of the placing area 202 is provided with the cover plate 201. Through the arrangement of the placing area 202 and the cover plate 201, the storage of the unused protective cover is facilitated.

[0045] The top end of the placing area 202 is provided with a plurality of clamping holes 203, and the outer periphery of one side of the cover plate 201 is provided with a plurality of clamping columns 204, each of which is matched with one of the clamping holes 203. The upper surface of the cover plate 201 is provided with a dismounting handle 205. Through the arrangement of the clamping holes 203, the clamping columns 204 and the dismounting handle 205, the operation of dismounting the cover plate 201 is more convenient.

[0046] When using the three-phase uninterrupted meter changing device of the embodiment, the storage of the unused protective cover is facilitated through the arrangement of the placing area 202 and the cover plate 201, and the operation of dismounting the cover plate 201 is more convenient through the arrangement of the clamping holes 203, the clamping columns 204 and the dismounting handle 205.

[0047] Please refer to Figure 7 The application further provides a three-phase uninterrupted meter changing method applied to the three-phase uninterrupted meter changing device of claim 1, and characterized by comprising the following steps:

[0048] S1: fixing a new meter at the first meter installation area 110 of the meter installation area 106, and checking whether the puncture distribution device and the wiring box special tool at the wiring port area 109 are intact;

[0049] S2: using the puncture distribution device to connect the electric meter to be replaced on site, and using the wiring box special tool to connect the meter;

[0050] S3: operating the switch corresponding to the first meter installation area 110 at the operation button area 107 to switch to the first gear, and observing the indication lamp display area 108 to ensure that the state is normal;

[0051] S4: If the indicator light of the indicator light display area 108 is all green, after fixing the old meter at the second meter position 111, switching the switch corresponding to the second meter position 111 at the operation button area 107 to gear 1, and switching the switch corresponding to the first meter position 110 at the operation button area 107 to gear 0, the new meter is removed from the first meter position 110, installed at the user meter position, and the power is recorded;

[0052] S5: After recording the power of the old meter, switching the switch corresponding to the second meter position 111 at the operation button area 107 to gear 0, and disconnecting the detection button at the operation button area 107, the old meter is removed.

[0053] S6: After disconnecting the power button of the meter changing instrument box 101, the special line bundle and the special connecting tool for meter changing are removed, and the meter changing is completed.

[0054] In the embodiment, first, the new meter is fixed at the first meter position 110 of the meter position installation area 106, and it is checked whether the puncture distribution device at the wiring port area 109 and the special tool for the wiring box are intact, then the puncture distribution device is used to connect the electric meter to be replaced, and the special tool for the wiring box is used to connect the meter, then the switch corresponding to the first meter position 110 at the operation button area 107 is switched to gear 1, and it is observed that the state of the indicator light display area 108 is normal, if the indicator light of the indicator light display area 108 is all green, after fixing the old meter at the second meter position 111, switching the switch corresponding to the second meter position 111 at the operation button area 107 to gear 1, and switching the switch corresponding to the first meter position 110 at the operation button area 107 to gear 0, the new meter is removed from the first meter position 110, installed at the user meter position, and the power is recorded, and after recording the power of the old meter, the switch corresponding to the second meter position 111 at the operation button area 107 is switched to gear 0, the detection button at the operation button area 107 is disconnected, and the old meter is removed, finally, after disconnecting the power button of the meter changing instrument box 101, the special line bundle and the special connecting tool for meter changing are removed, and the meter changing is completed.

[0055] The above only discloses one preferred embodiment of the present application, and of course cannot limit the scope of the present application, and those skilled in the art can understand that all or part of the above-mentioned processes are implemented, and equivalent changes are made according to the claims of the present application, which still belongs to the scope covered by the present application.

Claims

1. A three-phase uninterrupted power meter replacement device, comprising a meter replacement unit housing, a housing cover being provided at the top of the meter replacement unit housing, and a meter mounting area, an operation button area, an indicator light display area, and a wiring port area being provided on the end face of the meter replacement unit housing, wherein a first meter position and a second meter position are provided at the meter position safety area, and both the first meter position and the second meter position adopt a pin-type socket structure, characterized in that, It also includes two protective covers, which are provided at both the first and second table positions; Each of the protective covers includes a cover body, four insert posts, and four surrounding plates. Fixing protrusions are provided at the four corners of the first and second instrument positions, and each fixing protrusion has a fixing hole. Insert posts are provided at the four bottom corners of each cover body, and each insert post is adapted to one fixing hole. A surrounding plate is provided between every two adjacent insert posts, and the surrounding plate is located between the corresponding two fixing protrusions. Disassembly protrusions are provided on both sides of the top of each cover body.

2. The three-phase uninterrupted power meter replacement device as described in claim 1, characterized in that, Both the first and second meter positions have anti-accidental contact pin structures. Each anti-accidental contact pin structure includes a mounting protrusion, a fixing post, a pull rod, and a return spring. The mounting protrusion is fixedly mounted on the side of the corresponding fixed protrusion. The mounting protrusion has a sliding groove inside, which penetrates the side of the corresponding fixed protrusion. The fixing post is slidably disposed inside the sliding groove. The return spring is disposed between the end of the fixing post away from the corresponding fixing hole and the inner bottom of the mounting protrusion. The cover has a insertion hole on the side of the insertion post corresponding to the fixed protrusion with the mounting protrusion. The insertion hole is adapted to the fixing post. The end of the fixing post away from the corresponding insertion post is also provided with the pull rod. The end of the pull rod away from the fixing post extends to the outside of the mounting protrusion.

3. The three-phase uninterrupted power meter replacement device as described in claim 2, characterized in that, Each of the pull rods includes a rod body, a fixing block, and a pull ring. The fixing block is fixedly installed at one end of the rod body, and the pull ring is fixedly installed at the other end of the rod body. The pull ring is located outside the mounting protrusion, and the fixing block is connected to the fixing post.

4. The three-phase uninterrupted power meter replacement device as described in claim 2, characterized in that, Each of the fixed columns is provided with limit blocks on both sides, and each of the sliding grooves is provided with limit grooves on both sides, with the limit blocks and limit grooves being adapted to each other.

5. The three-phase uninterrupted power meter replacement device as described in claim 2, characterized in that, Each of the fixed posts has a first inclined surface on the upper surface of the end near the corresponding insertion post, and each insertion post with the insertion hole has a second inclined surface on the bottom side facing the corresponding fixed post, the second inclined surface being adapted to the first inclined surface.

6. The three-phase uninterrupted power meter replacement device as described in claim 5, characterized in that, The three-phase uninterrupted power supply meter replacement device also includes a cover plate, and a placement area is provided at the bottom of the meter mounting area for placing the protective cover. The cover plate is provided at the top of the placement area.

7. A three-phase uninterrupted power meter replacement method, applied to the three-phase uninterrupted power meter replacement device as described in claim 1, characterized in that, Includes the following steps: Fix the new meter at the first meter position in the meter installation area, and check whether the piercing splitter and junction box special tool at the wiring port area are intact; Use a piercing splitter to connect to the meter that needs to be replaced on site, and use a junction box tool to connect the meters. Switch the switch corresponding to the first position in the operation button area to position 1, and at the same time observe the indicator light display area to ensure that the status is normal. If all the indicator lights in the indicator light display area are green, after removing the old meter and fixing it at the second meter position, operate the switch in the operation button area corresponding to the second meter position to switch to position 1, and then switch the switch in the operation button area corresponding to the first meter position to position 0. Remove the new meter from the first meter position, install it at the user's meter position, and record the electricity consumption. After recording the old meter's power, switch the switch corresponding to the second meter position in the operation button area to the 0 position, disconnect the detection button in the operation button area, and remove the old meter. After disconnecting the power button on the meter replacement unit, remove the meter replacement wiring harness and special connecting tool to complete the meter replacement.

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