A device for replacing an uninterrupted power supply three-phase electric meter

Abstract

The application relates to the field of power equipment, in particular to a continuous power supply three-phase electric energy meter replacing device, which comprises a shell A and a shell B arranged on the shell A, a contactor is arranged in the shell A, a plurality of connecting lines are arranged at the upper and lower ends of the shell A, a three-grade rotary knob switch is arranged in the shell A, the three-grade rotary knob switch is connected with a contactor circuit, and a connecting plate is arranged in the shell A; the continuous power supply three-phase electric energy meter replacing device further comprises a sleeve knob which is sleeved on the three-grade rotary knob switch; the continuous power supply three-phase electric energy meter replacing device drives the worm and other components to operate through the driving motor in the driving mechanism, the sleeve ring rotates, the L-shaped rod and the rack in the sliding mechanism are matched with the connecting gears at the two ends of the worm, the piston rod of the adsorption mechanism is pushed to move, the suction cup is adsorbed and fixed, the device can be fixed at a specified location, the three-grade rotary knob switch can be unlocked and rotated only by manually pressing the sleeve knob, and the three-grade rotary knob switch can be effectively prevented from being misoperated when being idle.

Description

Technical Field

[0001] This invention belongs to the field of power equipment technology, specifically relating to an uninterrupted power supply three-phase energy meter replacement device. Background Technology

[0002] With the steady improvement of people's quality of life, various users have increasingly higher expectations for power supply stability. To improve power supply reliability, the key lies in reducing the frequency of power outages. Therefore, uninterrupted power supply (UPS) has become a top priority for the State Grid and Southern Power Grid. Conducting UPS operations in the marketing metering field is one of the most direct and efficient means to enhance power supply reliability. Currently, a large number of electronic three-phase energy meters that have been in use for a long time are experiencing various metering anomalies such as black screens, distorted screens, system crashes, and communication failures due to the aging of electronic components. They cannot accurately measure electricity, which urgently requires timely replacement and large-scale periodic replacement work. Therefore, it is imperative to replace them with uninterrupted power meters.

[0003] Existing patent CN108445268A discloses a non-power-off replacement device for electricity meters, comprising a housing, a short-circuit terminal, an AC contactor, a control board, on / off indicator lights, and a self-locking switch. The short-circuit terminal is connected to a splitter to achieve parallel connection on each corresponding power line. When all connections are normal, the AC contactor can be activated by pressing the self-locking switch, which short-circuits the three phase lines and one neutral line in the power line. At this time, the operator can perform the electricity meter replacement operation without power interruption.

[0004] However, this patent makes it impossible to fix the device in one place during the replacement of the electricity meter. It needs to be placed by hanging or other means during the whole process. If there is an accidental pull or collision during the wiring process, the device is very likely to fall or the wiring will become loose. At the same time, it is necessary to check whether the self-locking switch is in the closed state before wiring. If it is in the open state, arcing will occur when wiring, which will damage the device and cause potential hazards to personal safety. Summary of the Invention

[0005] The purpose of this invention is to provide a non-disconnect three-phase energy meter replacement device that can fix the position and prevent accidental operation of the three-position rotary switch in order to solve the above problems.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A three-phase energy meter replacement device that does not require power supply includes a housing A and a housing B disposed on the housing A. A contactor is disposed inside the housing A. Multiple connecting wires are disposed at the upper and lower ends of the housing A. A three-position rotary switch is disposed inside the housing A. The three-position rotary switch is connected to the contactor circuit. A connecting plate is disposed inside the housing A.

[0008] It also includes:

[0009] A sleeve, wherein the sleeve is fitted onto a three-position rotary switch;

[0010] A collar is rotatably mounted on a connecting plate. By manually pressing the collar button, the collar button can drive the rotating part of the three-position rotary switch to rotate.

[0011] A drive mechanism is mounted on the connecting plate. The drive mechanism, in conjunction with the collar, enables the collar to drive the three-position rotary switch to rotate.

[0012] An adsorption mechanism is disposed on housing A;

[0013] A sliding mechanism is disposed inside the housing A. The sliding mechanism cooperates with the driving mechanism to allow the housing A to be adsorbed at a designated position by the adsorption mechanism.

[0014] As a further optimization of the present invention, a sliding ring is fitted on the sleeve, and protrusions are arrayed on the inner surface of the sliding ring. Multiple grooves are formed on the surface of the sleeve, and the protrusions are slidably disposed in the grooves. The sleeve is rotatably disposed on the housing B through the sliding ring. A limiting groove is formed on the sleeve, and the three-position rotary switch can be embedded in the limiting groove. Protruding rods are symmetrically arranged on the outer edge of the sleeve, and a spring is provided between the sleeve and the three-position rotary switch.

[0015] As a further optimization of the present invention, a cross groove is provided on the collar, the protruding rod can be embedded in the cross groove, and a gear B is fixedly provided on the collar.

[0016] As a further optimization of the present invention, a connecting frame is provided on the connecting plate, the fixing part of the three-position rotary switch is fixedly mounted on the connecting frame, a mounting base is fixedly provided inside the housing A, a mounting bracket is provided on the mounting base, and the contactor is fixedly mounted on the mounting base through the mounting bracket.

[0017] As a further optimization of the present invention, the driving mechanism includes a drive motor, which is mounted on a connecting plate. A worm gear is rotatably mounted on the connecting plate. Synchronous pulleys are provided at the output ends of the worm gear and the drive motor. A synchronous belt is provided between the synchronous pulleys. A horizontal shaft is rotatably mounted on the connecting plate. A worm wheel is fixedly mounted on the horizontal shaft and meshes with the worm gear. Gear A is mounted on the horizontal shaft and meshes with gear B.

[0018] As a further optimization of the present invention, the adsorption mechanism includes an air cylinder, which is fixedly disposed on both sides of the inner surface of the housing A. A piston rod is slidably disposed on the air cylinder, and a piston plate is disposed on the piston rod. The piston plate is sealed and slidably disposed in the air cylinder. One end of the air cylinder is connected to a three-way air pipe, and the other two ends of the three-way air pipe are connected to suction cups. The suction cups are fixedly disposed on the outer surface of the housing A and are connected to the three-way air pipe.

[0019] As a further optimization of the present invention, the sliding mechanism includes an L-shaped rod, which is fixedly disposed at one end of the piston rod. A slide rod is disposed between the mounting seats, and the L-shaped rod is slidably disposed on the slide rod. A rack is disposed on the L-shaped rod, and connecting gears are disposed at both ends of the worm gear, the connecting gears meshing with the rack.

[0020] As a further optimization of the present invention, a panel is provided on the surface of the housing B, the button passes through the housing B and the panel, and the sliding ring is rotatably disposed between the housing B and the panel.

[0021] As a further optimization of the present invention, a control board is provided on the housing B, which is connected to a three-position rotary switch circuit. The three-position rotary switch is connected to a contactor through the control board. An on / off indicator light is provided on the housing B, which is connected to the control board circuit.

[0022] As a further optimization of the present invention, the connecting line is connected to the contactor circuit, the contactor is connected to the control board circuit, and a connecting end is provided at the end of the connecting line away from the contactor.

[0023] The beneficial effects of this invention are as follows:

[0024] Unlike existing technologies, in actual use, the drive motor in the drive mechanism drives the worm gear and other components to rotate, causing the collar to rotate. At the same time, the L-shaped rod, rack, and connecting gears at both ends of the worm gear in the sliding mechanism work together to push the piston rod of the adsorption mechanism to move, achieving suction cup adsorption and fixation, thus securing the equipment in a designated location. Furthermore, the design of the sliding ring, protruding rod, and cross groove on the collar allows for manual pressing of the collar to unlock and rotate it, effectively preventing the three-position rotary switch from malfunctioning when idle, thus avoiding the risk of the contactor being energized while in an open state. It also prevents accidental contactor disconnection during meter replacement, thus avoiding power outages. Attached Figure Description

[0025] Figure 1 This is an exploded view of the overall structure of the present invention;

[0026] Figure 2 This is the present invention. Figure 1 Schematic diagram of the split structure;

[0027] Figure 3 This is the present invention. Figure 2 Enlarged structural diagram at point A in the middle;

[0028] Figure 4 This is a schematic diagram of the internal structure of the housing B of the present invention;

[0029] Figure 5 This is a schematic diagram of the drive mechanism structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the button connection structure of the present invention;

[0031] Figure 7 This is the present invention. Figure 6 Schematic diagram of the split structure;

[0032] Figure 8 This is a partial cross-sectional structural diagram of the air cylinder of the present invention;

[0033] Figure 9 This is a partial cross-sectional view of the shell B of the present invention;

[0034] Figure 10 This is the present invention. Figure 9 Enlarged structural diagram at point B.

[0035] In the diagram: 1. Housing A; 2. Housing B; 21. Panel; 3. Connecting wire; 31. Connecting end; 4. Contactor; 41. Mounting bracket; 42. Mounting base; 5. Connecting plate; 51. Connecting bracket; 6. Drive mechanism; 61. Drive motor; 62. Synchronous belt; 621. Synchronous pulley; 63. Worm gear; 631. Worm wheel; 64. Horizontal shaft; 641. Gear A; 7. Three-position rotary switch; 8. Button; 81. Slide Moving ring; 811, protrusion; 82, slide groove; 83, limiting groove; 84, protruding rod; 85, spring; 9, collar; 91, cross groove; 92, gear B; 10, suction mechanism; 101, air cylinder; 102, piston rod; 1021, piston plate; 103, three-way air pipe; 1031, suction cup; 11, sliding mechanism; 111, L-shaped rod; 112, slide rod; 113, rack; 114, connecting gear. Detailed Implementation

[0036] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0037] Example 1: As Figure 1 - Figure 10As shown, an uninterruptible three-phase energy meter replacement device includes a housing A1 and a housing B2 mounted on the housing A1. A contactor 4 is installed inside the housing A1. Multiple connecting wires 3 are installed at the upper and lower ends of the housing A1. A three-position rotary switch 7 is installed inside the housing A1. The three-position rotary switch 7 is a commercially available rotary switch with a fixed part and a rotating part. The three positions of the three-position rotary switch 7 are normally open, neutral, and normally closed. The three-position rotary switch 7 is electrically connected to the contactor 4. A connecting plate 5 is installed inside the housing A1. The device also includes... It includes: a sleeve 8 fitted onto the three-position rotary switch 7, and a collar 9 rotatably mounted on the connecting plate 5. By manually pressing the sleeve 8, the sleeve 8 can drive the rotating part of the three-position rotary switch 7 to rotate. A drive mechanism 6 is provided on the connecting plate 5. The drive mechanism 6 cooperates with the collar 9 to drive the sleeve 8 to drive the rotating part of the three-position rotary switch 7 to rotate. An adsorption mechanism 10 and a sliding mechanism 11 are provided on the housing A1. The drive mechanism 6 cooperates with the sliding mechanism 11 to allow the housing A1 to be adsorbed at a designated position by the adsorption mechanism 10.

[0038] like Figure 6 - Figure 7 As shown, a sliding ring 81 is fitted onto the sleeve 8. Protrusions 811 are arrayed on the inner surface of the sliding ring 81. Multiple grooves 82 are formed on the surface of the sleeve 8, and the protrusions 811 are slidably disposed in the grooves 82. The sleeve 8 is rotatably mounted on the housing B2 via the sliding ring 81. A limiting groove 83 is formed on the sleeve 8, and protruding rods 84 are symmetrically arranged on the outer edge of the sleeve 8. A spring 85 is provided between the sleeve 8 and the rotating part of the three-position rotary switch 7, allowing the sleeve 8 to slide on the sliding ring 81. The sliding grooves 82 limit the movement distance of the sleeve 8. Simultaneously, a horizontal plate is provided on the rotating part of the three-position rotary switch 7, which can be embedded in the limiting groove 83 and can move within the limiting groove 83. Thus, the limiting groove 83 allows the rotating part of the three-position rotary switch 7 to rotate synchronously with the limiting groove 83, while the spring 85 provides the sleeve 8 with a self-resetting force.

[0039] like Figure 6 - Figure 7 As shown, the collar 9 has a cross groove 91, into which the protruding rod 84 can be inserted. This allows the knob 8 to be inserted into the cross groove 91 after each 90° rotation, thus restricting the knob 8. When the collar 9 rotates, it drives the knob 8 to rotate as well, thereby driving the three-position rotary switch 7. A gear B92 is fixedly mounted on the collar 9, connecting it to the drive mechanism 6. This achieves automated driving of the knob 8, eliminating the need for frequent manual rotation by the operator, reducing labor intensity and improving operational efficiency. Furthermore, this structural design effectively prevents the knob 8 from rotating arbitrarily due to external interference when not in operation, ensuring the stability of the circuit.

[0040] like Figure 2 and Figure 5 As shown, a connecting bracket 51 is provided on the connecting plate 5. The fixing part of the three-position rotary switch 7 is fixedly mounted on the connecting bracket 51. The connecting bracket 51 provides an installation position for the three-position rotary switch 7 and also provides an installation position for the drive mechanism 6, serving to connect and support multiple key components. Its modular design facilitates later maintenance and disassembly. A mounting base 42 is fixedly installed inside the housing A1, and a mounting bracket 41 is mounted on the mounting base 42. The contactor 4 is fixedly mounted on the mounting base 42 via the mounting bracket 41. The design of the connecting bracket 51 and the mounting bracket 41 makes the internal structural layout of the device more reasonable and compact. The modular installation method facilitates the quick disassembly and replacement of faulty components when equipment malfunctions, greatly shortening maintenance time and reducing maintenance costs. At the same time, this design effectively improves the installation accuracy between components, ensures the stability of the connection between components, reduces the risk of equipment failure due to loose components, and improves the reliability and service life of the entire device.

[0041] like Figure 5 As shown, the drive mechanism 6 includes a drive motor 61, which is mounted on a connecting plate 5. A worm gear 63 is rotatably mounted on the connecting plate 5. Both the worm gear 63 and the output end of the drive motor 61 are equipped with synchronous pulleys 621. A synchronous belt 62 is provided between the synchronous pulleys 621. A horizontal shaft 64 is rotatably mounted on the connecting plate 5. A worm wheel 631 is fixedly mounted on the horizontal shaft 64 and meshes with the worm gear 63. A gear A641 is mounted on the horizontal shaft 64 and meshes with a gear B92. The drive motor 61 serves as the power source, driving the worm gear 63 to rotate through the synchronous pulleys 621 and the synchronous belt 62. The meshing of gear A641 and gear B92 enables the automatic rotation of the sleeve button 8, controlling the three-position rotary switch 7. Through the unidirectional transmission between the worm gear 63 and the worm wheel 631, the rotation of the collar 9 is restricted, thereby restricting the rotation of the sleeve button 8 through the collar 9.

[0042] like Figure 8As shown, the adsorption mechanism 10 includes an air cylinder 101, which is fixedly mounted on both sides of the inner surface of the housing A1. A piston rod 102 is slidably mounted on the air cylinder 101, and a piston plate 1021 is mounted on the piston rod 102. The piston plate 1021 is slidably and sealingly mounted in the air cylinder 101. One end of the air cylinder 101 is connected to a three-way air pipe 103, and the other two ends of the three-way air pipe 103 are connected to suction cups 1031. The air pipe 103 passes through the mounting base 42, and the suction cups 1031 are fixedly mounted on the outer surface of the housing A1. The suction cups 1031 are connected to the three-way air pipe 103. When the piston rod 102 moves, the air cylinder 101 can simultaneously evacuate air from both suction cups 1031 through the three-way air pipe 103, causing the suction cups 1031 to adsorb and fix the device. The design of the three-way air pipe 103 allows the two suction cups 1031 to... Synchronous operation ensures uniform force on the device, preventing tilting or detachment due to uneven force, and greatly improving the stability of the device during meter replacement. This adsorption method is simple and convenient to operate, requiring no additional tools; simply activating the drive mechanism 6 achieves automatic adsorption, effectively improving the efficiency and safety of meter replacement operations.

[0043] like Figure 3 and Figure 8 As shown, the sliding mechanism 11 includes an L-shaped rod 111, which is fixedly mounted on one end of the piston rod 102. A slide rod 112 is provided between the mounting bases 42, and the L-shaped rod 111 is slidably mounted on the slide rod 112. A rack 113 is provided on the L-shaped rod 111, and connecting gears 114 are provided at both ends of the worm gear 63. The connecting gears 114 mesh with the rack 113. The L-shaped rod 111 is fixed to the piston rod 102 and slides on the slide rod 112, thereby limiting the movement path of the L-shaped rod 111. The rack 113 of the L-shaped rod 111 meshes with the connecting gears 114 at both ends of the worm gear 63. When the drive mechanism 6 is operating, it can drive the piston rod 102 of the adsorption mechanism 10 to move, realizing the synchronous operation of equipment fixation and circuit control.

[0044] like Figure 9 - Figure 10 As shown, a panel 21 is provided on the surface of the housing B2, and the panel 21 has markings. A sleeve 8 passes through the housing B2 and the panel 21. A sliding ring 81 is rotatably disposed between the housing B2 and the panel 21 to fix the position of the sleeve 8. A control board is provided on the housing B2, and the control board is electrically connected to a three-position rotary switch 7. The three-position rotary switch 7 is connected to a contactor 4 through the control board. An on / off indicator light is provided on the housing B2, and the on / off indicator light is electrically connected to the control board. It can monitor the circuit on / off status in real time, provide intuitive feedback to the operator, and improve the reliability of operation.

[0045] like Figure 2As shown, the connecting wire 3 is connected to the contactor 4 circuit, and the contactor 4 is connected to the control board circuit. The housing B2 is equipped with a charging interface connected to the control board and a switch to start the drive motor 61. The housing A1 is equipped with a power supply to power the drive mechanism 6 and the control board and other components. The end of the connecting wire 3 away from the contactor 4 is provided with a connecting end 31. The connecting end 31 can be an alligator clip, a pin holder, or a piercing splitter. The connecting end 31 can be disassembled and replaced according to the actual situation.

[0046] It should be noted that the working principle of this uninterruptible three-phase energy meter replacement device is as follows: During meter replacement, the device is first placed in an easily accessible location. Then, the drive motor 61 in the drive mechanism 6 is started via a switch. The drive motor 61 rotates, driving the worm gear 63 to rotate via the synchronous belt 62. During the rotation of the worm gear 63, it drives the horizontal shaft 64 to rotate via the worm wheel 631. The horizontal shaft 64 drives the gear A641 on it to rotate synchronously. Gear A641 meshes with gear B92, thereby causing the collar 9 to rotate. Since the protruding rod 84 is embedded in the cross groove 91 of the collar 9, the rotation of the collar 9 drives the sleeve button 8 to rotate as well. Then, the knob 8 drives the three-position rotary switch 7. At the same time, the connecting gears 114 at both ends of the worm 63 mesh with the rack 113 of the sliding mechanism 11. The worm 63 rotates, pushing the connecting gears 114 to move, which in turn drives the L-shaped rod 111 to slide along the slide rod 112. The sliding of the L-shaped rod 111 drives the piston rod 102 of the adsorption mechanism 10 to move inside the air cylinder 101. After the three-position rotary switch 7 is rotated 90°, it enters the middle neutral state. At this time, the suction cup 1031 completes adsorption. Thus, during the equipment fixing process, the three-position rotary switch 7 enters the neutral state, the suction cup 1031 is fully adsorbed, and the device can be released.

[0047] The connection terminal 31 can be an alligator clip, a pin holder, or a piercing splitter. In specific connection, connect the designated connection terminal 31 on the upper connection line 3 of the housing A1 to the A / B / C phase power lines of the air switch of the input line of the energy meter to be replaced, respectively. Connect the remaining connection terminals 31 to the N phase power lines of the three-phase energy meter to be replaced. Then, connect the lower connection line 3 of the housing A1 to the A / B / C phase power lines of the output line of the three-phase energy meter to be replaced. Connect the remaining connection terminals 31 to the N phase power lines of the three-phase energy meter to be replaced.

[0048] After the connection is complete, manually press the sleeve button 8. The sleeve button 8 compresses the spring 85 and slides on the sliding ring 81. At this time, the protruding rod 84 disengages from the cross groove 91 of the sleeve ring 9. Continue to rotate the sleeve button 8 90° to drive the three-position rotary switch 7 to control the contactor 4 to conduct. By observing the on / off indicator light on the housing B2, determine whether the connection of the connecting wire 3 is good. If the connection is good, the connecting wire 3 forms a branch line through the contactor 4 to keep the circuit connected. At this time, the air switch or knife switch of the input power of the energy meter can be disconnected from the air switch or knife switch on the user side to make the energy meter de-energized. Then, disconnect the input and output lines of the old energy meter in sequence to carry out the normal meter replacement operation.

[0049] After the meter replacement is completed, press the sleeve button 8 again and rotate it 90° in the opposite direction to put the three-position rotary switch 7 back into the neutral position. Then disconnect the connecting wire 3. After disconnection, start the drive motor 61 again to reverse it. During the reverse rotation of the drive motor 61, the air cylinder 101 simultaneously inputs gas into the two suction cups 1031, separating the device from the fixed position and allowing it to be removed. During this process, the three-position rotary switch 7 returns to its initial closed state. When the operator performs meter replacement without power interruption, this device can fix the device in a convenient operating position and ensure that the contactor 4 is in an open state after the device is fixed, avoiding wiring arcing that could damage the device. In addition, the press-to-unlock and rotate design of the sleeve button 8 effectively reduces the possibility of malfunction of the three-position rotary switch 7. Even if the three-position rotary switch 7 is accidentally put into the neutral position before wiring, its status can be easily observed through the vertical lever of the sleeve button 8, preventing the contactor 4 from being in the open state before wiring.

[0050] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A three-phase uninterruptible power meter replacement device, comprising a housing A (1) and a housing B (2) disposed on the housing A (1), wherein a contactor (4) is disposed inside the housing A (1), and multiple connecting wires (3) are disposed at the upper and lower ends of the housing A (1), characterized in that: The housing A (1) is provided with a three-position rotary switch (7), which is connected to the contactor (4) circuit. A sleeve (8) is sleeved on the three-position rotary switch (7). A connecting plate (5) is provided inside the housing A (1). A collar (9) is rotatably provided on the connecting plate (5). A driving mechanism (6) is provided on the connecting plate (5). An adsorption mechanism (10) is provided on the housing A (1). A sliding mechanism (11) is provided inside the housing A (1). Through the cooperation of the driving mechanism (6) and the sliding mechanism (11), the housing A (1) is adsorbed at a designated position by the adsorption mechanism (10). The sleeve (8) is fitted with a sliding ring (81), and the inner surface of the sliding ring (81) is provided with an array of protrusions (811). The sleeve (8) has multiple grooves (82) on its surface. The protrusions (811) are slidably disposed in the grooves (82). The sleeve (8) is rotatably disposed on the housing B (2) through the sliding ring (81). The sleeve (8) has a limiting groove (83) on its surface. The three-position rotary switch (7) can be embedded in the limiting groove (83). The outer edge of the sleeve (8) is symmetrically provided with protrusions (84). A spring (85) is provided between the sleeve (8) and the three-position rotary switch (7). The collar (9) has a cross groove (91) and the protruding rod (84) can be embedded in the cross groove (91). The collar (9) is fixedly provided with a gear B (92).

2. The uninterruptible three-phase energy meter replacement device according to claim 1, characterized in that: A connecting frame (51) is provided on the connecting plate (5). The fixing part of the three-position rotary switch (7) is fixedly installed on the connecting frame (51). A mounting base (42) is fixedly installed inside the housing A (1). A mounting frame (41) is provided on the mounting base (42). The contactor (4) is fixedly installed on the mounting base (42) through the mounting frame (41).

3. The uninterruptible three-phase energy meter replacement device according to claim 2, characterized in that: The drive mechanism (6) includes a drive motor (61), which is mounted on a connecting plate (5). A worm gear (63) is rotatably mounted on the connecting plate (5). A synchronous pulley (621) is mounted on both the output end of the worm gear (63) and the drive motor (61). A synchronous belt (62) is mounted between the synchronous pulleys (621). A horizontal shaft (64) is rotatably mounted on the connecting plate (5). A worm wheel (631) is fixedly mounted on the horizontal shaft (64). The worm wheel (631) meshes with the worm gear (63). A gear A (641) is mounted on the horizontal shaft (64). The gear A (641) meshes with the gear B (92).

4. The uninterruptible three-phase energy meter replacement device according to claim 1, characterized in that: The adsorption mechanism (10) includes an air cylinder (101), which is fixedly disposed on both sides of the inner surface of the housing A (1). A piston rod (102) is slidably disposed on the air cylinder (101), and a piston plate (1021) is disposed on the piston rod (102). The piston plate (1021) is sealed and slidably disposed in the air cylinder (101). One end of the air cylinder (101) is connected to a three-way air pipe (103), and the other two ends of the three-way air pipe (103) are connected to suction cups (1031). The suction cups (1031) are fixedly disposed on the outer surface of the housing A (1), and the suction cups (1031) are connected to the three-way air pipe (103).

5. The uninterruptible three-phase energy meter replacement device according to claim 3, characterized in that: The sliding mechanism (11) includes an L-shaped rod (111), which is fixedly mounted on one end of the piston rod (102). A slide rod (112) is provided between the mounting bases (42). The L-shaped rod (111) is slidably mounted on the slide rod (112). A rack (113) is provided on the L-shaped rod (111). Connecting gears (114) are provided at both ends of the worm gear (63). The connecting gears (114) mesh with the rack (113).

6. The uninterruptible three-phase energy meter replacement device according to claim 1, characterized in that: The housing B (2) has a panel (21) on its surface. The button (8) passes through the housing B (2) and the panel (21). The sliding ring (81) is rotatably disposed between the housing B (2) and the panel (21).

7. The uninterruptible three-phase energy meter replacement device according to claim 1, characterized in that: The housing B (2) is provided with a control board, which is connected to a three-position rotary switch (7) via a circuit. The three-position rotary switch (7) is connected to a contactor (4) via the control board. The housing B (2) is provided with an on / off indicator light, which is connected to the control board via a circuit.

8. The uninterruptible three-phase energy meter replacement device according to claim 7, characterized in that: The connecting line (3) is connected to the contactor (4) circuit, and the contactor (4) is connected to the control board circuit. The end of the connecting line (3) away from the contactor (4) is provided with a connecting end (31).

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