Metering box for uninterrupted meter change

Abstract

The application discloses a meter replacement metering box without power interruption, which comprises a box body, a driving device, a short-circuit device and a meter pushing device; the box body is internally provided with connecting terminals; the driving device comprises a driving handle and a transmission assembly; the first end of the driving handle is provided with a hook; the second end is hingedly connected with the box body; and the third end is hingedly connected with the transmission assembly; the hook is used for clamping a clamping groove on the electric meter when the electric meter is installed in place; the driving handle is used for being driven to rotate to drive the hook to be separated from the clamping groove and to drive the short-circuit device and the meter pushing device to be translated through the transmission assembly, so that two connecting terminals with the same phase are short-circuited through the short-circuit device, and the electric meter is pushed out of the electric meter position through the meter pushing device after the short-circuiting; the meter pushing device is also used for being reversely pushed by the electric meter when the electric meter is installed to drive the short-circuit device to be separated from the connecting terminals and to drive the driving handle to rotate to the hook to clamp the clamping groove. The meter replacement metering box without power interruption provided by the application can realize meter replacement without power interruption, effectively reduces meter replacement operation steps, improves meter replacement efficiency and avoids misoperation.

Description

Technical Field

[0001] This invention relates to the field of electricity meter installation technology, and in particular, to a metering box for uninterrupted meter replacement. Background Technology

[0002] Currently, with increasingly higher requirements for the accuracy and functionality of electricity meters, and considering the limited lifespan of each meter, power supply companies need to replace or repair meters periodically to improve user experience and avoid safety hazards. However, traditional meter installation and removal methods require power outages, especially for large-scale meter replacements for a large number of residential users, resulting in prolonged outages that affect the quality of power supply services. Sudden power outages can also damage users' electrical equipment such as computers, refrigerators, and air conditioners. Therefore, existing technology has designed short-circuit modules for uninterrupted meter replacement. These plug-in short-circuit modules short-circuit the meter's wiring circuit, temporarily connecting the circuit and allowing for meter installation and removal without power interruption. However, external short-circuit modules are not only difficult to store and compatible with different types of meters, but also difficult to verify successful short-circuiting, posing safety risks.

[0003] In response, Chinese invention patent application CN121216230A provides an uninterrupted meter replacement box and a method for replacing the meter. This method uses a drive component to drive a short-circuit component to short-circuit the expansion terminals of the same phase, while simultaneously driving the expansion component to retract the expansion terminals, thereby releasing the meter for removal. Correspondingly, the drive component simultaneously drives the short-circuit component to disengage from the expansion terminals, while also driving the expansion component to open the expansion terminals, thereby locking the meter and ensuring reliable conduction. However, this short-circuit device has an overly complex structure. While achieving the short-circuit function, it also requires tension adjustment of the expansion terminals, which can easily lead to jamming. Furthermore, it fails to immediately disconnect the meter upon successful short-circuiting and fails to immediately disengage the short-circuit upon installing a new meter, which can easily result in misoperation, causing unauthorized energy consumption and economic losses. Summary of the Invention

[0004] This invention provides a metering box that allows for uninterrupted meter replacement, thereby solving the technical problems of existing uninterrupted metering boxes being complex in structure, inconvenient to use, and prone to misoperation.

[0005] According to one aspect of the present invention, an uninterrupted meter replacement box is provided, comprising a box body, a drive device, a short-circuit device, and a meter pusher device; The box is equipped with a meter holder, and the meter holder is equipped with multiple connection terminals for plugging in the meter. The driving device includes a driving handle and a transmission assembly. The first end of the driving handle is provided with a hook, the second end of the driving handle is hinged to the housing, and the third end of the driving handle is hinged to the transmission assembly. The transmission assembly is connected to the shorting device and the pusher device respectively. The hook is used to engage with a pre-set slot on the meter when the meter is installed in place. The drive handle is used to be driven to rotate when the meter is removed, so as to drive the hook to disengage from the slot. During the rotation, the drive handle drives the shorting device and the push-meter device to move through the transmission component, thereby shorting the two connection terminals of the same phase through the shorting device, and pushing the meter out of the meter position through the push-meter device after shorting. The push-meter device is also used to be pushed in the opposite direction by the meter when the meter is installed, so as to drive the shorting device to disengage from the connection terminal, and drive the drive handle to rotate through the transmission component to engage the hook with the pre-set slot on the meter.

[0006] Preferably, the transmission assembly includes a first link and a second link. The first end of the first link is hinged to the drive handle, and the second end of the first link is hinged to the second link. The second link is connected to the shorting device and the pusher device, respectively. The housing is also provided with a guide structure extending along the insertion direction of the connecting terminal. The second end of the first link and / or the second link are mounted on the guide structure and used for guiding and sliding along the guide structure.

[0007] Preferably, the second connecting rod includes a main body with a ring structure and a hinge portion provided on one side of the main body. The second end of the first connecting rod is hinged to the hinge portion. The shorting device and the pusher device are both installed on the side of the main body away from the hinge portion and form an elastic buffer structure through the main body.

[0008] Preferably, the driving device further includes a limit switch, which is located at the end of the second link facing the first link. The second link is also used to be pushed by the meter to trigger the limit switch when the meter is installed in place.

[0009] Preferably, the transmission assembly is located on the side of the connection terminal away from the meter, and the meter pusher includes a push rod made of insulating material and disposed on the transmission assembly. The push rod is used to pass through the space between two connection terminals of the same phase to the side of the connection terminal facing the meter. The shorting device includes a shorting member disposed on the push rod. The shorting member is used to short-circuit the two connection terminals of the same phase when the push rod moves toward the meter.

[0010] Preferably, the end of the connection terminal away from the meter is provided with a conductive clip, and the shorting member includes a shorting plate for inserting into the conductive clip and clamping and fixing it by the conductive clip. The shorting plate extends a predetermined length along the direction of insertion into the conductive clip so as to short-circuit the two connection terminals of the same phase before the meter is completely removed from the connection terminal, and maintain the short-circuit state after the meter is completely removed from the connection terminal.

[0011] Preferably, the drive handle includes a drive arm and a transmission arm, the drive arm and the transmission arm are arranged at an angle to form a V-shaped structure, the end of the drive arm away from the transmission arm is provided with the hook, the end of the transmission arm connected to the drive arm is hinged to the housing, and the end of the transmission arm away from the drive arm is hinged to the transmission assembly.

[0012] Preferably, the drive arm includes a first segment corresponding to the meter position and a second segment avoiding the meter position. The hook is disposed on the first segment, and the drive arm is connected to the second segment. The first segment is configured to fit against the surface of the meter, and the second segment protrudes relative to the first segment in a direction away from the meter surface to form a gripping part.

[0013] Preferably, the uninterrupted meter replacement box further includes a cover plate installed on the box body. The cover plate is used to cover the meter position, the drive device, the short-circuit device and the push-meter device after the cover is closed, while pressing the drive handle and restricting the rotation of the drive handle.

[0014] Preferably, the housing is further provided with a limiting groove adapted to the width of the meter. The limiting groove is used to engage the meter and restrict the meter’s disassembly and assembly direction along the moving direction of the meter pusher device.

[0015] The present invention has the following beneficial effects: The uninterrupted meter replacement box provided by this invention features a drive handle equipped with a hook. When the meter is installed, the hook engages with a pre-set slot on the meter, achieving a self-locking effect. When the meter needs to be replaced, rotating the drive handle disengages the hook from the slot to unlock the meter. Simultaneously, a transmission component moves a short-circuiting device and a meter-pushing device, short-circuiting the two terminals of the same phase. After short-circuiting, the meter-pushing device pushes the meter out of its position. Simply rotating the drive handle sequentially completes these three actions: unlocking the meter, short-circuiting the terminals, and pushing the meter out. This facilitates quick and easy meter replacement, improving efficiency. It allows for meter installation and replacement without power interruption and automatically disconnects the meter immediately upon successful short-circuiting. To avoid problems such as prolonged short circuits and missed energy readings caused by misoperation, the meter pusher is pushed in the opposite direction when a new meter is installed, causing the short-circuit device to gradually disengage from the connection terminal. This immediately releases the short circuit upon installation of the new meter. The transmission component then automatically rotates the drive handle to engage with the pre-set slot on the meter. Once the meter is in place, it automatically locks itself, preventing direct removal. Simply inserting a new meter completes the three actions of short-circuit release, drive handle reset, and meter locking sequentially, eliminating the need for manual short-circuit release or manual drive handle rotation. This significantly reduces the steps involved in meter replacement, prevents misoperation, and features a simple, efficient, and jam-resistant drive structure, effectively reducing the difficulty and efficiency of meter replacement.

[0016] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the uninterrupted meter replacement box provided in an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows the uninterrupted power meter replacement box in the meter installation position. Figure 3 for Figure 2 The diagram shows the side structure of the uninterrupted power meter replacement box. Figure 4 for Figure 1 The diagram shows the uninterrupted power meter replacement box in the meter ejection state. Figure 5 for Figure 4 The diagram shows the side structure of the uninterrupted power meter replacement box.

[0018] Legend: 1000. Uninterrupted Meter Replacement Box; 1. Box Body; 11. Meter Position; 12. Connecting Terminal; 121. Conductive Clip; 13. Guide Structure; 14. Limiting Slide Groove; 2. Drive Device; 21. Drive Handle; 211. Hook; 212. Drive Arm; 2121. First Section; 2122. Second Section; 213. Transmission Arm; 22. Transmission Assembly; 221. First Linkage; 222. Second Linkage; 2221. Main Body; 2222. Hinge; 23. Limit Switch; 3. Short-Circuit Device; 31. Short-Circuit Component; 4. Meter Pushing Device; 41. Push Rod; 2000, electricity meter; 2001, card slot. Detailed Implementation

[0019] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] Those skilled in the art will understand that, unless specifically stated otherwise, the term "comprising" as used in this specification means the presence of the stated features, integers, steps, operations, components, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, components, and / or combinations thereof. It should be understood that when we say a component is "connected" to another component, it can be directly connected to the other component or connected via an intermediate component. The term "and / or" as used herein includes all or any unit and all combinations of one or more associated listed items. The terms "first" and "second," etc., in this specification and claims are used to distinguish different objects, not to describe a particular order.

[0021] Figures 1 to 5 The invention provides an uninterrupted meter replacement box, which is used to disassemble and replace electricity meters without interrupting power. The short-circuit structure is simple and efficient, effectively avoiding abnormal power outages caused by directly unplugging the meter without short-circuiting the connection terminals, improving the quality of power supply services, and simplifying the meter replacement process and reducing the difficulty of meter replacement.

[0022] like Figure 1As shown, the uninterrupted power meter replacement box 1000 includes a box body 1, a drive device 2, a shorting device 3, and a meter pushing device 4. The box body 1 is provided with a meter position 11, and the meter position 11 is provided with multiple connection terminals 12 for plugging in the meter 2000. The drive device 2 includes a drive handle 21 and a transmission assembly 22. The first end of the drive handle 21 is provided with a hook 211, the second end of the drive handle 21 is hinged to the box body 1, and the third end of the drive handle 21 is hinged to the transmission assembly 22. The transmission assembly 22 is connected to the shorting device 3 and the meter pushing device 4 respectively. The transmission assembly 22 is used to convert the rotational action of the drive handle 21 into a translational action and drive the shorting device 3 and the meter pushing device 4 to translate. The transmission assembly 22 is also used to convert the translational action of the meter pushing device 4 into a rotational action and drive the drive handle 21 to rotate.

[0023] Please combine Figures 2 to 5 ,exist Figure 2 and Figure 3 The image shows the installed state of the electricity meter 2000 in the uninterrupted power meter replacement box 1000. Figure 4 and Figure 5 The image shows the state in which the electricity meter 2000 in the uninterrupted power meter replacement box 1000 is pushed out. The working principle of the uninterrupted power meter replacement box 1000 is as follows: the hook 211 is used to engage with the preset slot 2001 on the electricity meter 2000 when the electricity meter 2000 is installed in place; the drive handle 21 is used to be driven to rotate in a direction away from the electricity meter 2000 when the electricity meter 2000 is removed, so as to drive the hook 211 to disengage from the slot 2001 and drive the shorting device 3 and the... The pusher device 4 moves horizontally, thereby short-circuiting the two connection terminals 12 of the same phase through the short-circuiting device 3, and after short-circuiting, the pusher device 4 pushes the meter 2000 out of the meter position 11; the pusher device 4 is also used to be pushed in the opposite direction by the meter 2000 when the meter 2000 is installed, so as to drive the short-circuiting device 3 to disengage from the connection terminal 12, and drive the drive handle 21 to rotate in the direction toward the meter 2000 through the transmission component 22 until the hook 211 engages with the preset slot 2001 on the meter 2000.

[0024] Specifically, in the uninterrupted power meter replacement box 1000, the drive handle 21 is equipped with a hook 211. When the meter 2000 is installed in place, the hook 211 engages with the preset slot 2001 on the meter 2000, achieving a self-locking effect. When the meter 2000 needs to be replaced, rotating the drive handle 21 causes the hook 211 to disengage from the slot 2001 to unlock the meter 2000. Simultaneously, the transmission component 22 drives the shorting device 3 and the pusher device 4 to move horizontally. This allows the shorting device 3 to short-circuit the two connection terminals 12 of the same phase, and the pusher device 4 to push the meter 2000 out of the meter position 11 after short-circuiting. Only by rotating the drive handle 21 can the three actions of unlocking the meter 2000, short-circuiting the connection terminals 12, and pushing out the meter 2000 be completed sequentially. This facilitates quick and easy meter replacement, improves replacement efficiency, and allows for meter replacement without power interruption. Furthermore, the first... The meter 2000 is automatically disconnected at a certain time to avoid problems such as prolonged short circuits and missed energy readings caused by accidental operation. When a new meter 2000 is installed, the push device 4 is pushed in the opposite direction by the insertion of the meter 2000, which drives the short-circuit device 3 to gradually disengage from the connection terminal 12. The short-circuit state is released immediately upon the installation of the new meter 2000, and the drive handle 21 is automatically rotated by the transmission component 22 to engage with the pre-set slot 2001 on the meter 2000 through the hook 211. After the meter 2000 is installed in place, it is automatically locked and cannot be pulled out directly. Only by inserting the new meter 2000 can the three actions of releasing the short circuit, resetting the drive handle 21, and locking the meter 2000 be completed in sequence. There is no need to manually release the short circuit state or manually rotate the drive handle 21 to reset, which effectively reduces the steps of meter replacement, avoids accidental operation, and the drive structure is simple, efficient, and not prone to jamming, effectively reducing the difficulty and improving the efficiency of meter replacement.

[0025] Preferably, the transmission assembly 22 includes a first connecting rod 221 and a second connecting rod 222. The first end of the first connecting rod 221 is hinged to the drive handle 21, and the second end of the first connecting rod 221 is hinged to the second connecting rod 222. The second connecting rod 222 is connected to the shorting device 3 and the pusher device 4, respectively. The housing 1 is also provided with a guide structure 13 extending along the insertion direction of the connecting terminal 12. The guide structure 13 is a slide groove or slide rail structure. The second end of the first connecting rod 221 and / or the second connecting rod 222 are mounted on the guide structure 13 and used for guiding and sliding along the guide structure 13.

[0026] The working principle of the transmission assembly 22 is as follows: When the drive handle 21 rotates, it can drive the first connecting rod 221 to swing, and the swinging motion of the first connecting rod 221 pushes the second connecting rod 222 to slide along the guide structure 13, thereby converting the rotational motion of the drive handle 21 into a translational motion. When the second connecting rod 222 is pushed in the opposite direction by the pusher device 4 to slide along the guide structure 13, it can also drive the first connecting rod 221 to swing, and the swinging motion of the first connecting rod 221 drives the drive handle 21 to rotate, thus engaging the meter 2000, thereby converting the translational motion of the pusher device 4 into a rotational motion. The transmission assembly 22 can achieve bidirectional direction-changing transmission effect through a simple connecting rod structure. The transmission structure is simple, efficient, low-cost, and durable.

[0027] Preferably, the second connecting rod 222 includes a main body 2221 with an annular structure and a hinge portion 2222 provided on one side of the main body 2221. The second end of the first connecting rod 221 is hinged to the hinge portion 2222. The shorting device 3 and the pusher device 4 are both installed on the side of the main body 2221 away from the hinge portion 2222 and form an elastic buffer structure through the main body 2221, so that the shorting device 3 and the pusher device 4 have an elastic buffer effect.

[0028] Specifically, because the main body 2221 has a ring-shaped structure, a gap between its two sides forms an elastic buffer space, giving its sidewalls an elastic buffering effect. This prevents rigid collisions between the pusher device 4 and the meter 2000, or between the shorting device 3 and the connecting terminal 12, effectively protecting the uninterrupted power meter replacement box 1000 and the meter 2000. Secondly, using the ring-shaped main body 2221 as an elastic buffer structure provides stronger structural stability compared to using a spring buffer. This ensures the support strength for the shorting device 3 and the pusher device 4, guaranteeing that the shorting device 3 is properly shorted and that the pusher device 4 can stably push the meter 2000 or be stably pushed by the meter 2000.

[0029] Preferably, the driving device 2 further includes a limit switch 23, which is used to detect whether the meter 2000 is installed in place. The limit switch 23 is located at the end of the second connecting rod 222 facing the first connecting rod 221. The second connecting rod 222 is also used to be pushed by the meter 2000 to trigger the limit switch 23 when the meter 2000 is installed in place. It is worth noting that compared with placing the limit switch 23 in the meter position 11 to directly contact the meter 2000, determining whether the meter 2000 is installed in place by detecting the position of the second connecting rod 222 can not only detect the installation status of the meter 2000, but also detect whether the shorting device 3, the push device 4, and the driving handle 21 have completed the reset action. The position detection of multiple devices can be completed with one limit switch 23, without the need to set separate limit switches 23 for the meter 2000, the shorting device 3, the push device 4, and the driving handle 21.

[0030] Preferably, the transmission assembly 22 is located on the side of the connecting terminal 12 away from the meter 2000. The meter-pushing device 4 includes a push rod 41 made of insulating material and mounted on the transmission assembly 22. The push rod 41 extends through the space between two connecting terminals 12 of the same phase to the side of the connecting terminal 12 facing the meter 2000. The shorting device 3 includes a shorting member 31 mounted on the push rod 41. The shorting member 31 is used to short-circuit the two connecting terminals 12 of the same phase when the push rod 41 moves toward the meter 2000. In this embodiment, there are four connecting terminals 12, which are arranged at intervals along a straight line. The two connecting terminals 12 on the same side have the same phase, thus forming two connecting terminal groups of the same phase. There are two corresponding push rods 41, which are inserted one-to-one into the two connecting terminal groups. The shorting member 31 includes shorting plates that extend outward along opposite sides of the push rod 41 and are used to overlap two adjacent connecting terminals 12. In other embodiments, the specific number of push rods 41 can be adjusted according to the actual number of connection terminals 12. When there are more push rods 41, the meter 2000 can be moved more stably by multiple push rods 41.

[0031] The uninterruptible meter replacement box 1000 utilizes the space between two adjacent connection terminals 12 to pass through the push rod 41, and installs the shorting connector 31 on the push rod 41. The layout is reasonable and compact, occupying little space. When the push rod 41 moves towards the meter 2000, it can drive the shorting connector 31 to simultaneously connect the two connection terminals 12 of the same phase. When the push rod 41 is pushed back and reset by the meter 2000, it can also drive the shorting connector 31 to disengage from the connection terminal 12, realizing the linkage effect of the push rod 41 and the shorting connector 31. The operation is simple and effectively avoids the problem of mismatch between the short-circuit state of the connection terminal 12 and the plugging / unplugging state of the meter 2000 due to misoperation.

[0032] Furthermore, the pusher device 4 also includes a mounting bolt that passes through and is fixed on the second connecting rod 222. The end of the pusher 41 is provided with a threaded hole that is threadedly connected to the mounting bolt. The pusher 41 is detachably connected by the mounting bolt so that pushers 41 of different lengths can be replaced to adapt to the push-out position of different meters 2000.

[0033] Preferably, the end of the connection terminal 12 away from the meter 2000 is provided with a conductive clip 121, and the shorting member 31 includes a shorting plate for inserting into the conductive clip 121 and clamping and fixing it through the conductive clip 121. The shorting plate extends a predetermined length along the direction of insertion into the conductive clip 121 to short-circuit the two connection terminals 12 of the same phase before the meter 2000 is completely removed from the connection terminal 12, and maintains the short-circuit state after the meter 2000 is completely removed from the connection terminal 12.

[0034] Specifically, the conductive clip 121 includes two elastic clamping plates that elastically abut against each other. Each elastic clamping plate is provided with an arc-shaped conductive part that protrudes toward the other elastic clamping plate. Along the direction in which the shorting member 31 is inserted into the conductive clip 121, both sides of the arc-shaped conductive part have clearance space for the shorting member to pass through. Because the shorting plate extends a predetermined length along the direction of insertion into the conductive clip 121, it can increase the shorting stroke of the shorting member 31, so that the shorting stroke of the shorting member 31 can cover the position of the meter 2000 from contacting the connection terminal 12 to disengaging from the connection terminal 12. Specifically, when the front end of the shorting plate contacts the arc-shaped conductive part to form a shorting circuit, the meter 2000 has not yet completely disengaged from the connection terminal 12. When the shorting plate continues to move with the push rod 41 until the meter 2000 is completely disengaged from the connection terminal 12, the rear end of the shorting plate remains in contact with the arc-shaped conductive part to form a shorting circuit, thereby ensuring that the shorting is completed before the meter 2000 is disconnected and remains shorted after the meter 2000 is disconnected, avoiding abnormal power outages.

[0035] Preferably, the drive handle 21 includes a drive arm 212 and a transmission arm 213. The drive arm 212 and the transmission arm 213 are arranged at an angle to form a V-shaped structure. The end of the drive arm 212 away from the transmission arm 213 is provided with the hook 211. The end of the transmission arm 213 connected to the drive arm 212 is hinged to the housing 1, and the end of the transmission arm 213 away from the drive arm 212 is hinged to the transmission assembly 22. By setting the drive handle 21 to a V-shaped structure, the drive arm 212 and the transmission arm 213 overlap in the length direction of the housing 1, effectively reducing the space occupied. It also allows the hook 211 and the transmission assembly 22 to be set towards the meter 2000, eliminating the need for an additional reversing transmission structure to change direction, thus effectively simplifying the structure.

[0036] like Figure 3 As shown, the drive arm 212 includes a first segment 2121 corresponding to the meter position 11 and a second segment 2122 avoiding the meter position 11. A latch 211 is provided on the first segment 2121. The transmission arm 213 is connected to the second segment 2122. The first segment 2121 is designed to fit against the surface of the meter 2000 to press the meter 2000 and ensure the latch 211 is engaged. The second segment 2122 protrudes relative to the first segment 2121 in a direction away from the surface of the meter 2000, forming a gripping part. That is, the second segment 2122 is used by the operator to grip and rotate the drive handle 21, so that the gripping part avoids the connection terminal 12 and other live parts within the meter position 11, effectively preventing accidental electric shock and improving safety.

[0037] Furthermore, the drive arm 212 and the transmission arm 213 are integrally formed to improve structural strength and durability.

[0038] Preferably, the uninterrupted meter replacement box 1000 further includes a cover plate (not shown in the figure, the same below) detachably installed on the box body 1. The cover plate is equipped with a special lock to prevent unauthorized personnel from opening it. The cover plate is used to cover the meter position 11, the drive device 2, the short-circuit device 3, and the push-meter device 4 after it is closed, while pressing the drive handle 21 and restricting the rotation of the drive handle 21. The cover plate provides safety protection while also limiting and fixing the drive handle 21, preventing unauthorized operation by irrelevant / unauthorized personnel.

[0039] like Figure 1As shown, the housing 1 is also equipped with a limiting groove 14 adapted to the width of the meter 2000. The limiting groove 14 is used to engage the meter 2000 and restrict the installation and removal direction of the meter 2000 along the moving direction of the pusher device 4. By guiding and limiting the meter 2000 through the limiting groove 14, the installation accuracy of the meter 2000 can be improved, facilitating quick insertion. It also helps the pusher device 4 to smoothly push out the meter 2000, preventing the meter 2000 from tilting and getting stuck.

[0040] Furthermore, the uninterrupted meter replacement meter box 1000 also includes an auxiliary metering mechanism (not shown in the figure, the same below) connected to the shorting device 3. The auxiliary metering mechanism is used to measure the power consumption data after the shorting device 3 short-circuits the two connection terminals 12 of the same phase, thereby assisting in measuring the user's power consumption after the meter 2000 is removed and before the new meter 2000 is installed, and avoiding power leakage during the replacement of the meter 2000.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A metering box for uninterrupted meter replacement, characterized in that, It includes a housing (1), a drive unit (2), a short-circuit device (3), and a pusher device (4). The housing (1) is provided with a meter position (11), and the meter position (11) is provided with multiple connection terminals (12) for plugging in the meter (2000). The drive device (2) includes a drive handle (21) and a transmission assembly (22). The first end of the drive handle (21) is provided with a hook (211). The second end of the drive handle (21) is hinged to the housing (1). The third end of the drive handle (21) is hinged to the transmission assembly (22). The transmission assembly (22) is connected to the shorting device (3) and the pusher device (4) respectively. The hook (211) is used to engage with the pre-set slot (2001) on the meter (2000) when the meter (2000) is installed in place. The drive handle (21) is driven to rotate when the meter (2000) is removed, so as to drive the hook (211) to disengage from the slot (2001). During the rotation, the drive handle (21) drives the shorting device (3) and the push device (4) to translate through the transmission component (22), so that the two connection ends of the same phase are connected by the shorting device (3). The meter (2000) is short-circuited by the sub-meter (12), and after short-circuiting, the meter (2000) is pushed out of the meter position (11) by the meter pusher (4); the meter pusher (4) is also used to be pushed in the opposite direction by the meter (2000) when the meter (2000) is installed, so as to drive the short-circuiting device (3) to disengage from the connection terminal (12), and drive the drive handle (21) to rotate to the hook (211) to engage the preset slot (2001) on the meter (2000) through the transmission component (22). The transmission assembly (22) includes a first connecting rod (221) and a second connecting rod (222). The first end of the first connecting rod (221) is hinged to the drive handle (21), and the second end of the first connecting rod (221) is hinged to the second connecting rod (222). The second connecting rod (222) is connected to the shorting device (3) and the pusher device (4) respectively. The housing (1) is also provided with a guide structure (13) extending along the insertion direction of the connecting terminal (12). The second end of the first connecting rod (221) and / or the second connecting rod (222) are mounted on the guide structure (13) and used to guide and slide along the guide structure (13). The transmission assembly (22) is located on the side of the connection terminal (12) away from the meter (2000). The meter pusher device (4) includes a push rod (41) on the transmission assembly (22) and made of insulating material. The push rod (41) is used to pass through the space between the two connection terminals (12) of the same phase to the side of the connection terminal (12) facing the meter (2000). The shorting device (3) includes a shorting member (31) on the push rod (41). The shorting member (31) is used to short-circuit the two connection terminals (12) of the same phase when the push rod (41) moves toward the meter (2000).

2. The uninterrupted meter replacement box according to claim 1, characterized in that, The second link (222) includes a main body (2221) with an annular structure and a hinge (2222) provided on one side of the main body (2221). The second end of the first link (221) is hinged to the hinge (2222). The shorting device (3) and the pusher device (4) are both installed on the side of the main body (2221) away from the hinge (2222) and form an elastic buffer structure through the main body (2221).

3. The uninterrupted meter replacement box according to claim 1, characterized in that, The drive device (2) further includes a limit switch (23), which is located at one end of the second link (222) facing the first link (221). The second link (222) is also used to be pushed by the meter (2000) to trigger the limit switch (23) when the meter (2000) is installed in place.

4. The uninterrupted meter replacement box according to claim 1, characterized in that, The end of the connection terminal (12) away from the meter (2000) is provided with a conductive clip (121). The shorting member (31) includes a shorting plate for inserting into the conductive clip (121) and clamping and fixing it through the conductive clip (121). The shorting plate extends a predetermined length along the direction of insertion into the conductive clip (121) to short-circuit the two connection terminals (12) of the same phase before the meter (2000) is completely removed from the connection terminal (12), and maintains the short-circuit state after the meter (2000) is completely removed from the connection terminal (12).

5. The uninterrupted meter replacement box according to claim 1, characterized in that, The drive handle (21) includes a drive arm (212) and a transmission arm (213). The drive arm (212) and the transmission arm (213) are set at an angle to form a V-shaped structure. The end of the drive arm (212) away from the transmission arm (213) is provided with the hook (211). The end of the transmission arm (213) connected to the drive arm (212) is hinged to the housing (1). The end of the transmission arm (213) away from the drive arm (212) is hinged to the transmission assembly (22).

6. The uninterrupted meter replacement box according to claim 5, characterized in that, The drive arm (212) includes a first segment (2121) corresponding to the meter position (11) and a second segment (2122) avoiding the meter position (11). The hook (211) is provided on the first segment (2121). The transmission arm (213) is connected to the second segment (2122). The first segment (2121) is used to fit against the surface of the meter (2000). The second segment (2122) protrudes relative to the first segment (2121) in a direction away from the surface of the meter (2000) and forms a gripping part.

7. The uninterrupted meter replacement box according to claim 5, characterized in that, The uninterrupted meter replacement box also includes a cover plate installed on the box body (1). The cover plate is used to cover the meter position (11), the drive device (2), the short-circuit device (3) and the push device (4) after the cover is closed. At the same time, it presses the drive handle (21) and restricts the rotation of the drive handle (21).

8. The uninterrupted meter replacement box according to claim 1, characterized in that, The housing (1) is also provided with a limiting slide groove (14) that is adapted to the width of the meter (2000). The limiting slide groove (14) is used to snap the meter (2000) in place and to limit the disassembly and assembly direction of the meter (2000) along the moving direction of the meter pusher (4).

Images