A module unit, meter changing connector assembly and meter assembly

Abstract

The application provides a module unit, a meter changing connector assembly and a meter assembly, and belongs to the technical field of meter changing without power interruption, and comprises a shell, external conductive strips, meter conductive strips, a short-circuiting assembly which comprises a movable block, a short-circuiting sheet and a short-circuiting spring, and an adjusting block. The application has the beneficial effects that the on-off state of the circuit can be changed by adjusting the position of the adjusting block; when the adjusting block moves to the first position, the two external conductive strips are connected with the two meter conductive strips respectively, so as to facilitate the input and output of the meter; when the adjusting block moves to the second position, the two external conductive strips are short-circuited without passing through the meter; the special tool is not needed, and the meter changing without power interruption can be realized in one step, the operation is convenient, and the isolation function is provided.

Description

Technical Field

[0001] This invention belongs to the field of uninterrupted power meter replacement technology, and relates to a module unit, a meter replacement connector assembly, and a meter assembly. Background Technology

[0002] There are various types of uninterrupted meter replacement on the market. The structure commonly used by manufacturers is to short-circuit the L and N input / output lines respectively with a shorting tool before removing the meter.

[0003] For example, an invention patent with application number CN202210128758.8 discloses a wiring device for replacing electricity meters without power interruption. It includes a base for mounting the electricity meter, a connecting seat at the lower end of the base, a terminal block on the upper side of the connecting seat, a wiring hole on the lower side of the connecting seat, a connecting plate inside the connecting seat, two shorting connectors on the connecting plate, a first screw inside the connecting seat, a through hole inside the connecting plate, and a first nut matching the first screw inside the through hole. Rotation of the first screw moves the connecting plate, connecting the shorting connectors to the circuit. The base has sliding grooves on both sides, with sliding rods installed in the grooves. A first return spring is located at the bottom of the sliding rod, a clamping device is provided on the sliding rod, and a limiting device is located at the bottom of the groove. When the shorting connectors are connected to the circuit, the connecting plate controls the limiting device to release the sliding rod. This wiring device enables meter replacement without power interruption.

[0004] This short-circuiting method causes inconvenience to on-site maintenance personnel. Moreover, after the meter is unplugged, its plug remains energized, posing a safety hazard to maintenance personnel and leaving considerable room for improvement. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the prior art by proposing a module unit, a meter replacement connector assembly, and an electricity meter assembly.

[0006] The objective of this invention can be achieved through the following technical solution: a module unit, comprising:

[0007] A housing having a first position and a second position;

[0008] There are two external conductive strips, both of which are inserted through the housing and are provided with conductive sheets.

[0009] The meter has two conductive strips, both of which are inserted through the housing. Each conductive strip has a first contact point, and the two first contacts can respectively contact the two conductive sheets.

[0010] A shorting assembly includes a movable block, a shorting piece, and a shorting spring. The movable block is slidably connected to the housing. One end of the shorting spring contacts the housing and the other end of the shorting spring contacts the movable block. The shorting piece is connected to the movable block. Both ends of the shorting piece have second contacts, and the two second contacts can respectively contact the two external conductive strips.

[0011] An adjusting block is slidably connected to the housing and can slide to the first position or the second position; the adjusting block is provided with a toggle part.

[0012] When the adjusting block moves to the first position, the adjusting block pushes the movable block and the shorting piece away from the external conductive strip, thereby separating the two second contacts of the shorting piece from the two external conductive strips respectively, and the first contacts of the two meter conductive strips respectively contact the two conductive pieces;

[0013] When the adjusting block moves to the second position, the adjusting block drives the toggle part to push the meter conductive strip away from the conductive piece, thereby separating the first contact points of the two meter conductive strips from the two conductive pieces respectively. The shorting spring pushes the movable block and the shorting piece closer to the external conductive strip, thereby making the two second contact points of the shorting piece contact the two external conductive strips respectively.

[0014] In one of the above-mentioned module units, a push pin and a retaining spring are also included. One end of the retaining spring contacts the housing, and the other end of the retaining spring contacts the push pin. The retaining spring pushes the conductive sheet closer to the meter's conductive strip through the push pin, thereby making the first contact point contact the conductive sheet.

[0015] In one of the above-mentioned module units, the distance between the conductive sheet and the toggle part is a first distance, and the distance between the second contact and the external conductive strip is a second distance, wherein the second distance is less than or equal to the first distance.

[0016] In one of the above-mentioned module units, an adjusting wrench is also included. The adjusting wrench is rotatably connected to the housing. The adjusting wrench has a linkage groove, and the adjusting block has a linkage protrusion. The linkage protrusion is slidably connected to the linkage groove. When the adjusting wrench rotates, the adjusting block slides relative to the housing through the linkage protrusion sliding along the linkage groove.

[0017] In one of the above-mentioned module units, a reset torsion spring is also included. One end of the reset torsion spring is connected to the housing, and the other end of the reset torsion spring is connected to the adjusting wrench. The reset torsion spring can drive the adjusting wrench to rotate, thereby moving the adjusting block from the second position to the first position.

[0018] In one of the above-mentioned module units, the shorting assembly further includes a flexible spring. The movable block has a receiving cavity. The shorting piece and the flexible spring are disposed in the receiving cavity. Both ends of the shorting piece extend out of the receiving cavity. One end of the flexible spring contacts one wall of the receiving cavity, and the other end of the flexible spring contacts the middle of the shorting piece. The flexible spring pushes the shorting piece to contact the opposite wall of the receiving cavity.

[0019] Secondly, a meter replacement connector assembly includes the aforementioned module unit, and further includes: a synchronization bar and a meter holder. The number of the module units is two, and the adjustment wrenches of both module units are connected to the synchronization bar, and both module units are connected to the meter holder.

[0020] In the aforementioned transducer connector assembly, a locking block is further included. The two sides of the locking block are slidably connected to the housings of the two module units. The locking block is provided with a first locking part, and the synchronization bar is provided with a second locking part. When the synchronization bar rotates, the synchronization bar can drive the second locking part to align with the first locking part. When the locking block moves and the second locking part aligns with the first locking part, the locking block can drive the first locking part to contact the second locking part and restrict the rotation of the synchronization bar.

[0021] In the aforementioned meter replacement connector assembly, a lead-sealing rope is also included. The synchronizing bar is further provided with a third locking part. When the synchronizing bar rotates, it can drive the third locking part to align with the first locking part. When the locking block moves and the third locking part aligns with the first locking part, the locking block can drive the first locking part to contact the third locking part and restrict the rotation of the synchronizing bar. The first locking part is also provided with a first lead-sealing hole, and the third locking part is provided with a second lead-sealing hole. The lead-sealing rope can pass through the first lead-sealing hole and the second lead-sealing hole in sequence to lock the synchronizing bar and the locking block.

[0022] Furthermore, an electricity meter assembly, including the aforementioned meter replacement connector assembly, further includes: a meter body, the meter body being detachably connected to the meter holder, the meter body being provided with a rotatable flip cover, the flip cover being provided with a locking head, and the locking block having a locking hole, wherein when the flip cover is rotated, it can drive the locking head to insert into the locking hole, and when the locking head is inserted into the locking hole, the locking head restricts the movement of the locking block.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. The circuit connection state can be changed by adjusting the position of the adjustment block. When the adjustment block moves to the first position, the two external conductive strips are connected to the two meter conductive strips respectively, which facilitates the input and output of the meter. When the adjustment block moves to the second position, the two external conductive strips are short-circuited and do not pass through the meter. No special tools are required. The meter replacement function can be realized in one step without power failure. It is easy to operate and has isolation function.

[0025] 2. The spring pushes the conductive plate close to the meter's conductive strip through the pin, so that the first contact point contacts and presses against the conductive plate, preventing either the meter's conductive strip or the conductive plate from lifting and causing an open circuit, and ensuring that the two have a good contact relationship.

[0026] 3. If the second distance is less than or equal to the first distance, it can ensure that during the adjustment process, the second contact on the shorting piece first contacts the external conductive strip to achieve a short circuit, and then the first contact on the meter's conductive strip disconnects from the conductive piece; conversely, the first contact on the meter's conductive strip contacts the conductive piece to achieve a circuit, and then the second contact on the shorting piece disconnects from the external conductive strip.

[0027] 4. When the adjusting wrench is rotated, the adjusting block slides relative to the housing through the sliding of the linkage protrusion along the linkage groove. The circumferential rotation of the adjusting wrench is converted into the sliding of the adjusting block relative to the housing through the sliding of the linkage protrusion along the linkage groove.

[0028] 5. When the locking block moves and the second locking part aligns with the first locking part, the locking block can drive the first locking part to contact the second locking part and restrict the rotation of the synchronization bar, so that the adjustment wrench of the module unit cannot be moved freely.

[0029] 6. When the locking block moves and the third locking part aligns with the first locking part, the locking block can drive the first locking part to contact the third locking part and restrict the rotation of the synchronization bar. The lead seal rope can pass through the first lead seal hole and the second lead seal hole in sequence to lock the synchronization bar and the locking block, ensuring the state of the meter replacement connector when it is not connected to the meter during initial use.

[0030] 7. When the flip cover rotates and drives the locking head to insert into the locking hole, the locking head restricts the movement of the locking block. At the same time, the meter cannot be freely pulled out from the meter holder. At this time, the second locking part contacts the first locking part and restricts the rotation of the synchronization bar, so that the adjustment wrench of the module unit cannot be freely turned, thus achieving the goal of preventing electricity theft. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the module unit of the present invention.

[0032] Figure 2This is a schematic diagram of the internal structure of the module unit of the present invention.

[0033] Figure 3 This is a schematic diagram of the internal structure of the module unit of the present invention from another perspective.

[0034] Figure 4 This is an exploded view of the module unit structure of the present invention.

[0035] Figure 5 This is a schematic diagram of the structure of the meter replacement connector assembly of the present invention.

[0036] Figure 6 This is an exploded view of the meter replacement connector assembly of the present invention.

[0037] Figure 7 This is a schematic diagram of the structure of the meter assembly of the present invention.

[0038] Figure 8 This is an exploded view of the meter body of the present invention.

[0039] In the diagram, 100 is the housing; 200 is the external conductive strip; 210 is the conductive sheet; 300 is the meter's conductive strip; 310 is the first contact; 400 is the shorting assembly; 410 is the moving block; 420 is the shorting sheet; 421 is the second contact; 430 is the shorting spring; 440 is the flexible spring; 500 is the adjusting block; 510 is the actuating part; 520 is the linkage protrusion; 610 is the ejector pin; and 620 is the retaining spring. Spring; 700, Adjusting wrench; 710, Linkage groove; 800, Return torsion spring; 900, Synchronizing bar; 910, Second locking part; 920, Third locking part; 921, Second lead seal hole; 1000, Watch holder; 1100, Locking block; 1110, First locking part; 1111, First lead seal hole; 1120, Locking hole; 1200, Watch body; 1210, Flip cover; 1211, Locking head. Detailed Implementation

[0040] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0042] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0045] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a module unit includes: a housing 100, an external conductive strip 200, a meter conductive strip 300, a shorting assembly 400, and an adjusting block 500.

[0047] The housing 100 has a first position (not shown in the figure) and a second position (not shown in the figure).

[0048] There are two external conductive strips 200, both of which are inserted through the housing 100, and each external conductive strip 200 is provided with a conductive sheet 210.

[0049] The meter has two conductive strips 300, both of which are inserted through the housing 100. Each conductive strip 300 has a first contact 310, and the two first contacts 310 can contact the two conductive sheets 210 respectively.

[0050] The shorting assembly 400 includes a movable block 410, a shorting piece 420, and a shorting spring 430. The movable block 410 is slidably connected to the housing 100. One end of the shorting spring 430 contacts the housing 100 and the movable block 410. The shorting piece 420 is connected to the movable block 410. Both ends of the shorting piece 420 have second contacts 421, and the two second contacts 421 can respectively contact the two external conductive strips 200.

[0051] The adjusting block 500 is slidably connected to the housing 100 and can slide to the first position or the second position. The adjusting block 500 is provided with a toggle part 510.

[0052] When the adjusting block 500 moves to the first position, the adjusting block 500 pushes the movable block 410 and the shorting piece 420 away from the external conductive strip 200, thereby separating the two second contacts 421 of the shorting piece 420 from the two external conductive strips 200 respectively, and the first contacts 310 of the two meter conductive strips 300 respectively contact the two conductive pieces 210.

[0053] When the adjusting block 500 moves to the second position, the adjusting block 500 drives the toggle part 510 to push the meter conductive strip 300 away from the conductive piece 210, thereby separating the first contact 310 of the two meter conductive strips 300 from the two conductive pieces 210 respectively. The shorting spring 430 pushes the movable block 410 and the shorting piece 420 closer to the external conductive strip 200, thereby making the two second contact 421 of the shorting piece 420 contact the two external conductive strips 200 respectively.

[0054] In this embodiment, the circuit connection state can be changed by adjusting the position of the adjusting block 500. When the adjusting block 500 moves to the first position, the two external conductive strips 200 are connected to the two meter conductive strips 300 respectively, which facilitates the input and output of the meter. When the adjusting block 500 moves to the second position, the two external conductive strips 200 are short-circuited and do not pass through the meter. No special tools are required, and the meter replacement function can be realized in one step without power failure. The operation is convenient and has the function of isolation.

[0055] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, based on the above embodiment, it also includes a push pin 610 and a retaining spring 620. One end of the retaining spring 620 contacts the housing 100, and the other end of the retaining spring 620 contacts the push pin 610. The retaining spring 620 pushes the conductive sheet 210 closer to the meter conductive strip 300 through the push pin 610, thereby making the first contact 310 contact the conductive sheet 210.

[0056] Preferably, in order to ensure the guidance of the ejector pin 610, the adjusting block 500 is provided with a guide groove, the ejector pin 610 and the retaining spring 620 are disposed in the guide groove, and the ejector pin 610 can extend out of the guide groove.

[0057] In this embodiment, the retaining spring 620 pushes the conductive piece 210 close to the meter conductive strip 300 through the ejector pin 610, so that the first contact 310 contacts and presses against the conductive piece 210, preventing either the meter conductive strip 300 or the conductive piece 210 from lifting up and causing an open circuit, and ensuring that the two have a good contact relationship.

[0058] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, based on the above embodiment, the distance between the conductive sheet 210 and the toggle part 510 is a first distance (not shown in the figure), and the distance between the second contact 421 and the external conductive strip 200 is a second distance (not shown in the figure). The second distance is less than or equal to the first distance.

[0059] In this embodiment, the second distance being less than or equal to the first distance ensures that during the adjustment process, the second contact 421 on the shorting piece 420 first contacts the external conductive strip 200 to achieve a short circuit, and then the first contact on the meter conductive strip 300 disconnects from the conductive piece 210; conversely, the first contact on the meter conductive strip 300 contacts the conductive piece 210 to achieve a circuit, and then the second contact 421 on the shorting piece 420 disconnects from the external conductive strip 200.

[0060] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, based on the above embodiment, an adjusting wrench 700 is also included. The adjusting wrench 700 is rotatably connected to the housing 100. The adjusting wrench 700 has a linkage groove 710. The adjusting block 500 has a linkage protrusion 520. The linkage protrusion 520 is slidably connected to the linkage groove 710. When the adjusting wrench 700 rotates, the adjusting block 500 slides relative to the housing 100 through the linkage protrusion 520 sliding along the linkage groove 710.

[0061] Preferably, the linkage groove 710 is distributed along the radial direction of the adjusting wrench 700.

[0062] In this embodiment, when the adjusting wrench 700 rotates, the adjusting block 500 slides relative to the housing 100 by sliding along the linkage groove 710 via the linkage protrusion 520. The circumferential rotation of the adjusting wrench 700 is converted into the sliding of the adjusting block 500 relative to the housing 100 by sliding along the linkage groove 710 via the linkage protrusion 520.

[0063] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, based on the above embodiment, a reset torsion spring 800 is also included. One end of the reset torsion spring 800 is connected to the housing 100, and the other end of the reset torsion spring 800 is connected to the adjusting wrench 700. The reset torsion spring 800 can drive the adjusting wrench 700 to rotate, thereby moving the adjusting block 500 from the second position to the first position.

[0064] In this embodiment, the reset torsion spring 800 can drive the adjusting wrench 700 to rotate, thereby moving the adjusting block 500 from the second position to the first position, so that the adjusting wrench 700 can automatically reset and avoid internal short circuit of the module unit under normal conditions.

[0065] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, based on the above embodiment, the shorting assembly 400 further includes a flexible spring 440. The movable block 410 has a receiving cavity (not shown in the figure). The shorting piece 420 and the flexible spring 440 are disposed in the receiving cavity. Both ends of the shorting piece 420 extend out of the receiving cavity. One end of the flexible spring 440 contacts one wall of the receiving cavity, and the other end of the flexible spring 440 contacts the middle part of the shorting piece 420. The flexible spring 440 pushes the shorting piece 420 to contact the opposite wall of the receiving cavity.

[0066] In this embodiment, the flexible spring 440 pushes the shorting piece 420 to contact the opposite wall of the receiving cavity, so that it is flexibly connected to the movable block 410, which can ensure that it is always located closer to the conductive piece 210, and also facilitates the disassembly and replacement of the shorting piece 420.

[0067] like Figures 1-6 As shown, a meter replacement connector assembly includes a module unit, and further includes a synchronization bar 900 and a meter holder 1000. The number of module units is two, and the adjustment wrenches 700 of both module units are connected to the synchronization bar 900, and both module units are connected to the meter holder 1000.

[0068] In this embodiment, the adjustment wrenches 700 of the two module units are adjusted synchronously by moving the synchronization bar 900, and the N line and L line are adjusted simultaneously.

[0069] It is worth noting that, for the entire meter box, this meter replacement connector is equivalent to integrating a front-end isolating switch, which will significantly increase the wiring space of the meter box and reduce the overall cost of the meter box.

[0070] like Figures 1-6 As shown, based on the above embodiment, a locking block 1100 is also included. The two sides of the locking block 1100 are slidably connected to the housings 100 of the two module units, respectively. The locking block 1100 is provided with a first locking part 1110, and the synchronization bar 900 is provided with a second locking part 910. When the synchronization bar 900 rotates, the synchronization bar 900 can drive the second locking part 910 to align with the first locking part 1110. When the locking block 1100 moves and the second locking part 910 aligns with the first locking part 1110, the locking block 1100 can drive the first locking part 1110 to contact the second locking part 910 and restrict the rotation of the synchronization bar 900.

[0071] It is worth noting that the specific structure of the first locking part 1110 and the second locking part 910 is not limited. They can be a protrusion and a corresponding groove structure, or a groove and a protrusion structure. In the example, a plane-to-plane form is used.

[0072] It is also worth noting that, in order to ensure the accuracy and smoothness of the sliding of the locking block 1100, the sides of the two module units are respectively formed with grooves, and the two sides of the locking block 1100 are respectively set in the grooves of the two module units.

[0073] Specifically, when the first locking part 1110 contacts the second locking part 910, the adjusting block 500 remains in the first position under the action of the adjusting wrench 700.

[0074] In this embodiment, when the locking block 1100 moves and the second locking part 910 aligns with the first locking part 1110, the locking block 1100 can drive the first locking part 1110 to contact the second locking part 910 and restrict the rotation of the synchronization bar 900, thereby preventing the adjustment wrench 700 of the module unit from being moved freely.

[0075] like Figures 1-6 As shown, based on the above embodiment, a lead sealing rope is also included. The synchronization bar 900 is also provided with a third locking part 920. When the synchronization bar 900 rotates, the synchronization bar 900 can drive the third locking part 920 to align with the first locking part 1110. When the locking block 1100 moves and the third locking part 920 aligns with the first locking part 1110, the locking block 1100 can drive the first locking part 1110 to contact the third locking part 920 and restrict the rotation of the synchronization bar 900. The first locking part 1110 is also provided with a first lead sealing hole 1111, and the third locking part 920 is provided with a second lead sealing hole 921. The lead sealing rope can pass through the first lead sealing hole 1111 and the second lead sealing hole 921 in sequence to lock the synchronization bar 900 and the locking block 1100.

[0076] Specifically, when the first locking part 1110 contacts the third locking part 920, the adjusting block 500 remains in the second position under the action of the adjusting wrench 700.

[0077] In this embodiment, when the locking block 1100 moves and the third locking part 920 aligns with the first locking part 1110, the locking block 1100 can drive the first locking part 1110 to contact the third locking part 920 and restrict the rotation of the synchronization bar 900. The lead seal rope can pass through the first lead seal hole 1111 and the second lead seal hole 921 in sequence to lock the synchronization bar 900 and the locking block 1100, ensuring the state of the meter replacement connector when it is used for the first time without the meter connected.

[0078] like Figures 1-8 As shown, an electricity meter assembly includes the aforementioned meter replacement connector assembly, and further includes: a meter body 1200, which is detachably connected to the meter holder 1000.

[0079] like Figures 1-8 As shown, based on the above embodiment, the watch body 1200 is provided with a rotatable flip cover 1210, the flip cover 1210 is provided with a locking head 1211, and the locking block 1100 has a locking hole 1120. When the flip cover 1210 rotates, it can drive the locking head 1211 to be inserted into the locking hole 1120. When the locking head 1211 is inserted into the locking hole 1120, the locking head 1211 restricts the movement of the locking block 1100.

[0080] In this embodiment, when the flip cover 1210 rotates and drives the locking head 1211 to insert into the locking hole 1120, the locking head 1211 restricts the movement of the locking block 1100, and at the same time the meter cannot be freely pulled out from the meter holder 1000. At this time, the second locking part 910 contacts the first locking part 1110 and restricts the rotation of the synchronization bar 900, so that the adjustment wrench 700 of the module unit cannot be freely turned, and finally the anti-theft of electricity is achieved.

Claims

1. A module unit, characterized in that, include: A housing having a first position and a second position; There are two external conductive strips, both of which are inserted through the housing and are provided with conductive sheets. The meter has two conductive strips, both of which are inserted through the housing. Each conductive strip has a first contact point, and the two first contacts can respectively contact the two conductive sheets. A shorting assembly includes a movable block, a shorting piece, and a shorting spring. The movable block is slidably connected to the housing. One end of the shorting spring contacts the housing and the other end of the shorting spring contacts the movable block. The shorting piece is connected to the movable block. Both ends of the shorting piece have second contacts, and the two second contacts can respectively contact the two external conductive strips. An adjusting block is slidably connected to the housing and can slide to the first position or the second position; the adjusting block is provided with a toggle part. When the adjusting block moves to the first position, the adjusting block pushes the movable block and the shorting piece away from the external conductive strip, thereby separating the two second contacts of the shorting piece from the two external conductive strips respectively, and the first contacts of the two meter conductive strips respectively contact the two conductive pieces; When the adjusting block moves to the second position, the adjusting block drives the toggle part to push the meter conductive strip away from the conductive piece, thereby separating the first contact points of the two meter conductive strips from the two conductive pieces respectively. The shorting spring pushes the movable block and the shorting piece closer to the external conductive strip, thereby making the two second contact points of the shorting piece contact the two external conductive strips respectively. The distance between the conductive sheet and the actuating part is the first distance, and the distance between the second contact and the external conductive strip is the second distance, wherein the second distance is less than or equal to the first distance; It also includes an adjusting wrench, which is rotatably connected to the housing. The adjusting wrench has a linkage groove, and the adjusting block has a linkage protrusion. The linkage protrusion is slidably connected to the linkage groove. When the adjusting wrench is rotated, the adjusting block slides relative to the housing through the linkage protrusion sliding along the linkage groove.

2. The module unit as described in claim 1, characterized in that: It also includes a push pin and a retaining spring. One end of the retaining spring contacts the housing, and the other end of the retaining spring contacts the push pin. The retaining spring pushes the conductive plate closer to the meter's conductive strip through the push pin, thereby making the first contact point contact the conductive plate.

3. A module unit as described in claim 1, characterized in that: It also includes a reset torsion spring, one end of which is connected to the housing and the other end of which is connected to the adjusting wrench. The reset torsion spring can drive the adjusting wrench to rotate, thereby moving the adjusting block from the second position to the first position.

4. A module unit as described in claim 1, characterized in that: The shorting assembly further includes a flexible spring. The movable block has a receiving cavity. The shorting piece and the flexible spring are disposed in the receiving cavity. Both ends of the shorting piece extend out of the receiving cavity. One end of the flexible spring contacts one wall of the receiving cavity, and the other end of the flexible spring contacts the middle of the shorting piece. The flexible spring pushes the shorting piece to contact the opposite wall of the receiving cavity.

5. A meter replacement connector assembly, characterized in that, The module unit as described in claim 1 further includes: a synchronization bar and a watch holder, wherein there are two module units, the adjustment wrenches of both module units are connected to the synchronization bar, and both module units are connected to the watch holder.

6. The meter replacement connector assembly as described in claim 5, characterized in that: It also includes a locking block, the two sides of which are slidably connected to the housings of the two module units respectively. The locking block is provided with a first locking part, and the synchronization bar is provided with a second locking part. When the synchronization bar rotates, the synchronization bar can drive the second locking part to align with the first locking part. When the locking block moves and the second locking part aligns with the first locking part, the locking block can drive the first locking part to contact the second locking part and restrict the rotation of the synchronization bar.

7. A meter replacement connector assembly as described in claim 6, characterized in that: It also includes a lead seal rope, and the synchronization bar is also provided with a third locking part. When the synchronization bar rotates, the synchronization bar can drive the third locking part to align with the first locking part. When the locking block moves and the third locking part aligns with the first locking part, the locking block can drive the first locking part to contact the third locking part and restrict the rotation of the synchronization bar. The first locking part is also provided with a first lead seal hole, and the third locking part is provided with a second lead seal hole. The lead seal rope can pass through the first lead seal hole and the second lead seal hole in sequence to lock the synchronization bar and the locking block.

8. An electricity meter assembly, characterized in that, The watch replacement connector assembly as described in claim 6 or 7 further includes: a watch body, the watch body being detachably connected to the watch holder, the watch body being provided with a rotatable flip cover, the flip cover being provided with a locking head, the locking block having a locking hole, wherein when the flip cover is rotated, it can drive the locking head to insert into the locking hole, and when the locking head is inserted into the locking hole, the locking head restricts the movement of the locking block.

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