Intelligent electric meter

Abstract

The invention belongs to the technical field of electric meters, and particularly relates to an intelligent electric meter. Comprising a body; a U-shaped base is installed on the side face of the body. The wiring surface of the body is symmetrically provided with two positioning cylinders. A wire harness co-clamping device is arranged on the U-shaped base; the wire harness co-clamping device comprises a driving source which is mounted on the side surface of the U-shaped base; the displacement lead screw is mounted in the U-shaped base; the output end of the driving source is rotationally connected with the end part of the displacement screw rod; an in-place screwing unit is arranged on the positioning cylinder; the co-position screwing unit comprises a positioning cylinder which is connected into the positioning cylinder in a matched mode. The positioning cylinder is in sliding fit with the positioning cylinder; therefore, faults of poor contact, heating, unstable resistance and the like during operation of the electric meter can be effectively avoided, uniform stress of a plurality of wires is ensured, power supply reliability and metering accuracy are remarkably improved, safety risks in the use process of the electric meter are effectively reduced, and limitation of equipment in practical application is greatly reduced at the same time.

Description

Technical Field

[0001] This invention belongs to the field of electricity meter technology, specifically a smart meter. Background Technology

[0002] Smart meters are core devices in power metering systems used for energy measurement, data acquisition, and transmission. The multiple wires within their terminal boxes are typically electrically connected by tightening screws one by one. However, in existing meters, inconsistent tightening torques among the wires during multi-wire harness wiring can lead to insufficient tightening of some wires and excessive compression of others. This can result in poor contact, overheating, and unstable resistance during operation, causing uneven stress on the wires, affecting power supply reliability and metering accuracy, increasing safety risks in meter use, and significantly limiting their practical application. Summary of the Invention

[0003] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a smart meter that effectively solves the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a smart meter, comprising a body; a U-shaped base is mounted on the side of the body; two positioning cylinders are symmetrically mounted on the wiring face of the body; a wire harness clamping device is provided on the U-shaped base for synchronously clamping multiple wire harnesses; The wire harness clamping device includes a driving source and is mounted on the side of the U-shaped base; A displacement screw is installed inside a U-shaped base; the output end of the drive source is rotatably connected to the end of the displacement screw. The positioning cylinder is equipped with a co-positioning screwing unit for simultaneously tightening screws that fix multiple wire harnesses on the main body; the co-positioning screwing unit includes a positioning cylinder that fits into the positioning cylinder; the positioning cylinder and the positioning cylinder are in sliding fit. A positioning horizontal plate is located on one side of the wiring surface of the main body; the two positioning cylinders are connected together on the positioning horizontal plate; A guide tube is installed on a positioning plate; the guide tube is equipped with a scheduling locking assembly for adapting screws of different heights; the scheduling locking assembly includes a locking base, which is installed on the guide tube.

[0005] Preferably, it includes a positioning spring, which is disposed inside the positioning cylinder; one end of the positioning spring is fixedly connected to the bottom surface inside the positioning cylinder, and the other end is fixedly connected to the positioning cylinder. The first bent rod is connected to the positioning horizontal plate; The guide column is fitted inside the guide tube; the guide tube and the guide column slide together.

[0006] Preferably, it includes a guide cross plate, which is installed on the guide square column; The guide groove is located on the side of the guide plate near the wiring surface of the main body; The guide slider is fitted into the guide groove; several guide sliders slide in conjunction with the guide groove. The electric telescopic rod is installed on the side of the guide slider near the wiring surface of the main body.

[0007] Preferably, it includes a threaded area, which is disposed on the displacement screw; the two threaded areas are symmetrically arranged and have opposite directions of rotation; Displacement blocks are installed on the displacement screw; the two displacement blocks are respectively threaded into the two threaded areas. Limiting plate, installed on displacement block; Limiting base, connected to the U-shaped base; A limiting slide post is fixedly connected to a limiting square plate; the limiting slide post is connected through the limiting base, and the limiting slide post and the limiting base are in sliding engagement.

[0008] Preferably, it includes a second bent rod, one end of which is connected to the displacement block and the other end of which is connected to a drive cross plate; the two drive cross plates are located on both sides of the wire harness; one of the drive cross plates is connected to the end of the first bent rod away from the positioning cross plate. The driving cylinder is connected through the driving horizontal plate to the side near the wire harness; the driving horizontal plate and the driving cylinder are in sliding fit. The drive limit plate is fixedly connected to the end of the drive cylinder away from the wire harness. The drive clamp is fixedly connected to one end of the drive cylinder near the wire harness. A rubber energy-absorbing pad is installed on the drive clamp block near the wiring harness; the wiring harness is located on the moving path of the rubber energy-absorbing pad.

[0009] Preferably, it includes a drive spring, which is sleeved on the drive cylinder; one end of the drive spring is fixedly connected to the drive limiting plate, and the other end is fixedly connected to the drive cross plate. Signal patches are mounted on the opposite surfaces of the drive clamp and the drive cross plate, respectively; the two signal patches are electrically connected.

[0010] Preferably, it includes a locking cylinder, which is fixedly connected to the locking base; A locking limit plate is connected to the end of the locking cylinder away from the locking base; A locking slider is connected through the locking cylinder; the locking slider and the locking cylinder slide in a sliding fit. A locking spring is sleeved on a locking cylinder; one end of the locking spring is fixedly connected to the locking limit plate, and the other end is fixedly connected to the locking slider.

[0011] Preferably, it includes a locking slot, which is disposed through the guide post; a plurality of locking slots are arranged at equal intervals; A locking plate is located on one side of the locking slot; two locking sliders are connected to the locking plate. The handle is attached to the side of the lock plate away from the lock slot. The locking block is fixedly connected to the side of the locking plate near the locking slot.

[0012] Preferably, the locking block passes through the guide tube and is connected to one of the locking slots.

[0013] Preferably, it includes a drive block, which is mounted on the output end of the electric telescopic rod; The screwdriver is connected to the drive block; the drive block and the screwdriver are coaxial, and the two rotate in conjunction. A guide spring is installed inside the guide tube; one end of the guide spring is fixedly connected to the bottom surface of the guide tube, and the other end is fixedly connected to the guide post.

[0014] The beneficial effects that can be achieved by the above embodiments of the present invention include: (1) Multiple wire harnesses can be neatly clamped and fixed at one time by using wire harness clamping devices, so that the wire harnesses are evenly stressed and neatly arranged, effectively avoiding wire harnesses from loosening, shifting, tangling or wear of the outer skin, ensuring stable and reliable wiring of smart meters. At the same time, the clamping status is fed back in real time through signal patches, improving the accuracy and automation of wiring operations, enhancing the safety and convenience of equipment use and maintenance. Thus, in the process of wiring multiple wire harnesses, the situation of insufficient clamping of some wires and excessive compression of some wires due to inconsistent tightening torque of each wire is avoided, thereby avoiding adverse consequences such as poor contact, overheating and unstable resistance during the operation of the meter. The multiple wires are evenly stressed, improving the reliability of power supply and the accuracy of metering, reducing the safety risks of meter use, and reducing the limitations in its practical application. (2) By pulling the locking plate by the handle, the locking slider slides along the locking cylinder and compresses the locking spring, causing the locking block to disengage from the current locking slot, thus releasing the locking state of the guide column and the guide tube. At this time, the extension length of the guide column in the guide tube can be adjusted according to the screw height. After the guide column moves to the appropriate position, the handle is released, the locking spring rebounds and pushes the locking slider to reset. The locking plate drives the locking block to re-insert into the corresponding locking slot, locking the guide column and the guide tube to be fixed, thus achieving precise adaptation of screws of different heights. This component can quickly and reliably lock the axial position of the guide column, ensuring that the screwdriver is accurately matched with the screw height during the screwing operation, avoiding incomplete screwing or excessive compression due to height deviation, improving the flexibility and operational stability of adapting to different specifications of terminals, simplifying the height adjustment operation process, and improving the assembly efficiency of smart meter wiring. (3) Under the action of the driving cylinder and the driving spring, the driving plate drives the driving clamping block to move closer to the wire harness, so that the rubber energy-absorbing pad on it moves closer to the wire harness until the rubber energy-absorbing pad contacts the wire harness, thereby limiting the two sides of the wire harness and clamping the wire harness. Under the action of the rubber energy-absorbing pad, the clamping force is kept in a flexible buffer state to avoid the wire harness being crushed. At the same time, the driving clamping block and the two signal patches on the driving plate contact each other and conduct, outputting an electrical signal indicating that the clamping is in place. This completes the synchronous flexible clamping and positioning of multiple wire harnesses and is used to notify the staff in time to avoid the impact of improper clamping on the subsequent use of the meter. Under the action of the driving spring, the buffer force can also reduce the impact force on the wire harness during use, thereby extending the service life of the wire harness and ensuring the stability of the meter. (4) After multiple wires are uniformly positioned and clamped by the wire harness clamping device, the screws are automatically tightened by the co-positioning screw tightening unit. The tightening pitch is automatically controlled to avoid the occurrence of inconsistent tightening torque of each wire. This reduces the probability of problems such as poor contact, overheating, and unstable resistance during the operation of the meter, improves the power supply reliability and metering accuracy of the meter, reduces the workload of the staff, and also reduces the limitations of the meter in practical applications. It realizes the synchronous and uniform clamping of multiple wire harnesses and the synchronous equal torque tightening of multiple screws, which fundamentally solves the problems of poor contact and uneven force caused by uneven torque when multiple wire harnesses are connected in the existing meter. (5) When adjusting the working height of the screwdriver, the guide column moves within the guide tube to limit the movement, so that the guide spring is in a buffer state. When the guide column is limited to the current position, the guide spring, which was originally in a buffer state, cannot be reset. The resulting force acts on the guide column to strengthen the contact strength and friction between the locking slider and the locking slot, and prevent the locking slider from being dislodged or moved due to non-human factors when limiting the guide column. This improves the stability and accuracy of the screwdriver and also ensures the safety of the meter, thus reducing its limitations in practical applications. (6) The first bending rod moves the positioning plate closer to the meter, so that the positioning cylinder on the positioning plate moves within the positioning cylinder, and the positioning spring is in a buffer state, so that when it resets, it can drive the positioning plate to reset to the initial position for the next use. The movement of the positioning plate is positioned to avoid shaking, dislocation and other phenomena. When the positioning plate moves closer to the wire harness, the guide slider moves within the guide groove to adjust the screwdriver on the guide slider to the front of the screw used to fix the wire harness. The guide square cylinder, guide square column and guide spring cooperate to realize the adaptive adjustment of the axial height of the screwdriver. The guide slider slides along the guide groove to match the screw arrangement spacing. The electric telescopic rod pushes the drive block to abut the screwdriver against the screw. The screwdriver rotates to complete the synchronous tightening of multiple screws. The wire harness clamping and screw tightening are linked by the displacement screw to ensure that the wiring and fastening actions are synchronized, the alignment is accurate and the operation is efficient. This effectively improves the consistency and reliability of the smart meter wiring assembly and avoids the deviation and inefficiency caused by manual step-by-step operation. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0016] In the attached diagram: Figure 1 This is one of the overall structural schematic diagrams of the present invention; Figure 2 This is a front view of the signal patch of the present invention; Figure 3 This is a cross-sectional view of the positioning cylinder of the present invention; Figure 4 This is a cross-sectional view of the guide tube of the present invention; Figure 5 This is the second schematic diagram of the overall structure of the present invention; Figure 6 This is a schematic diagram of the second bent rod structure of the present invention; Figure 7 This is a schematic diagram of the electric telescopic pole structure of the present invention; Figure 8 This is a schematic diagram of the rubber energy-absorbing pad structure of the present invention; Figure 9 This is a schematic diagram of the locking slot structure of the present invention; Figure 10 This is a schematic diagram of the first bent rod structure of the present invention; In the diagram: 1. Main body; 2. U-shaped base; 3. Positioning cylinder; 4. Drive source; 5. Displacement screw; 6. Positioning cylinder; 7. Positioning horizontal plate; 8. Guide square tube; 9. Locking base; 10. Positioning spring; 11. First bending rod; 12. Guide square column; 13. Guide horizontal plate; 14. Guide groove; 15. Guide slider; 16. Electric telescopic rod; 17. Displacement block; 18. Limiting square plate; 19. Limiting base; 20. Limiting sliding column 21. Second bending rod; 22. Drive horizontal plate; 23. Drive cylinder; 24. Drive limiting plate; 25. Drive clamping block; 26. Rubber energy-absorbing pad; 27. Drive spring; 28. Signal patch; 29. ​​Locking cylinder; 30. Locking limiting plate; 31. Locking slider; 32. Locking spring; 33. Locking slot; 34. Locking horizontal plate; 35. Handle; 36. Locking insert; 37. Drive block; 38. Screwdriver; 39. Guide spring. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Implementation examples, by Figures 1 to 10The invention comprises a body 1; a U-shaped base 2 mounted on the side of the body 1; two positioning cylinders 3 symmetrically mounted on the wiring face of the body 1; a wire harness clamping device provided on the U-shaped base 2 for synchronously clamping multiple wire harnesses; the wire harness clamping device includes a drive source 4 mounted on the side of the U-shaped base 2; a displacement screw 5 mounted inside the U-shaped base 2; the output end of the drive source 4 is rotatably connected to the end of the displacement screw 5; a threaded area is provided on the displacement screw 5; two threaded areas are symmetrically arranged and have opposite directions of rotation; a displacement block 17 mounted on the displacement screw 5; two displacement blocks 17 are respectively threadedly connected to the two threaded areas; a limiting plate 18 mounted on the displacement block 17; a limiting base 19 connected to the U-shaped base 2; a limiting slide post 20 fixedly connected to the limiting plate 18; the limiting slide post 20 is slidably connected to the limiting base 19; and a second bent rod 21. One end is connected to the displacement block 17, and the other end is connected to the drive horizontal plate 22; two drive horizontal plates 22 are located on both sides of the wire harness; one of the drive horizontal plates 22 is connected to the end of the first bending rod 11 away from the positioning horizontal plate 7; a drive cylinder 23 is connected through the drive horizontal plate 22 near the wire harness; the drive horizontal plate 22 and the drive cylinder 23 are slidably fitted; a drive limiting plate 24 is fixedly connected to the end of the drive cylinder 23 away from the wire harness; a drive clamping block 25 is fixedly connected to the end of the drive cylinder 23 near the wire harness; a rubber energy-absorbing pad 26 is installed on the side of the drive clamping block 25 near the wire harness; the wire harness is located on the moving path of the rubber energy-absorbing pad 26; a drive spring 27 is sleeved on the drive cylinder 23; one end of the drive spring 27 is fixedly connected to the drive limiting plate 24, and the other end is fixedly connected to the drive horizontal plate 22; signal patches 28 are respectively installed on the opposite surfaces of the drive clamping block 25 and the drive horizontal plate 22; the two signal patches 28 are electrically connected; When the main body 1, i.e., the meter, needs to be wired after installation, the drive source 4 is activated, causing its output end to drive the displacement screw 5 to rotate. Two symmetrically arranged threaded areas on the displacement screw 5 with opposite rotation directions synchronously drive two displacement blocks 17 to move relatively linearly. The displacement blocks 17 drive the limiting plate 18 and the limiting slide column 20 to slide along the limiting base 19, achieving movement guidance and anti-rotation constraint. The two displacement blocks 17, respectively, drive the corresponding drive horizontal plate 22 to move synchronously towards the wiring harness direction via the second bent rod 21, with the two drive horizontal plates 22 gradually approaching each other. The drive horizontal plate 22 is controlled by the drive cylinder 23 and the drive spring 27. Under the action of the drive clamp 25, it moves closer to the wire harness, causing the drive clamp 25 and the rubber energy-absorbing pad 26 on it to move closer to the wire harness until the rubber energy-absorbing pad 26 contacts the wire harness, thereby limiting the two sides of the wire harness and clamping the wire harness. Under the action of the rubber energy-absorbing pad 26, the clamping force is kept in a flexible buffer state to prevent the wire harness from being crushed. At the same time, the drive clamp 25 and the two signal patches 28 on the drive plate 22 contact each other and conduct electricity, outputting an electrical signal indicating that the clamping is in place. This completes the synchronous flexible clamping and positioning of multiple wire harnesses and is used to notify the staff in time to avoid the subsequent use of the meter due to improper clamping. The buffering force provided by the drive spring 27 reduces the impact force on the wire harness during use, extending its service life and ensuring the stability of the meter. Simultaneously, the above actions allow for the neat clamping and fixing of multiple wire harnesses at once, ensuring even force distribution and orderly arrangement. This effectively prevents loosening, misalignment, tangling, or surface wear, guaranteeing stable and reliable smart meter wiring. Furthermore, the signal patch 28 provides real-time feedback on the clamping status, improving the accuracy and automation of wiring operations and enhancing equipment safety and ease of maintenance. This prevents insufficient clamping or excessive compression of some wires due to inconsistent tightening torque during multi-wire harness wiring, thus avoiding poor contact, overheating, and unstable resistance during meter operation. It ensures even force distribution on multiple wires, improving power supply reliability and metering accuracy, reducing safety risks, and mitigating limitations in practical applications.

[0019] In this embodiment, the positioning cylinder 3 is equipped with a co-positioning screwing unit for simultaneously tightening the screws fixing multiple wire harnesses on the body 1. The co-positioning screwing unit includes a positioning cylinder 6, which is fitted into the positioning cylinder 3; the positioning cylinder 6 and the positioning cylinder 3 are slidably fitted; a positioning horizontal plate 7 is located on one side of the wiring surface of the body 1; two positioning cylinders 6 are connected to the positioning horizontal plate 7; a guide square tube 8 is installed on the positioning horizontal plate 7; a positioning spring 10 is disposed inside the positioning cylinder 3; one end of the positioning spring 10 is fixedly connected to the inner bottom surface of the positioning cylinder 3, and the other end is fixedly connected to the positioning cylinder 6; a first bent rod 11 is connected to the positioning horizontal plate 7; and a guide square post 12 is fitted into the guide square tube 8; the guide square tube 8 and the guide square post 12 are slidably fitted. The system includes: a guide plate 13 mounted on a guide column 12; a guide groove 14 located on the side of the guide plate 13 near the wiring surface of the main body 1; a guide slider 15 fitted into the guide groove 14; several guide sliders 15 slidingly engaged with the guide groove 14; an electric telescopic rod 16 mounted on the side of the guide slider 15 near the wiring surface of the main body 1; a drive block 37 mounted on the output end of the electric telescopic rod 16; a screwdriver 38 connected to the drive block 37; the drive block 37 and the screwdriver 38 are coaxial and rotate in coordination; and a guide spring 39 located inside the guide tube 8; one end of the guide spring 39 is fixedly connected to the bottom surface of the guide tube 8, and the other end is fixedly connected to the guide column 12. When the meter is being wired, as the wiring harness and clamping device position and hold the wiring harness to be connected, the drive plate 22 moves closer to the wiring harness. Under the action of the first bending rod 11, it drives the positioning plate 7 closer to the meter. This causes the positioning cylinder 6 on the positioning plate 7 to move within the positioning cylinder 3, keeping the positioning spring 10 in a buffer state. This ensures that when the spring 10 resets, it can drive the positioning plate 7 back to its initial position for the next use. This positioning of the positioning plate 7 prevents shaking or dislocation. When the positioning plate 7 moves closer to the wiring harness, it moves within the guide groove 14 via the guide slider 15, which is used to limit the movement of the screws on the guide slider 15. The screwdriver 38 is adjusted to the position in front of the screw used to fix the wire harness. The guide square tube 8, guide square post 12 and guide spring 39 cooperate to realize the adaptive adjustment of the axial height of the screwdriver 38. The guide slider 15 slides along the guide groove 14 to match the screw arrangement spacing. The electric telescopic rod 16 pushes the drive block 37 to abut the screwdriver 38 against the screw. The screwdriver 38 rotates to complete the synchronous tightening of multiple screws. The wire harness clamping and screw tightening are linked by the unified drive of the displacement screw 5, which ensures that the wiring and fastening actions are synchronized, the alignment is accurate and the operation is efficient. This effectively improves the consistency and reliability of the smart meter wiring assembly and avoids the deviation and inefficiency caused by manual step-by-step operation. This system enables multiple wires to be uniformly positioned and clamped by the wire harness clamping device, and then automatically tightens the screws. The tightening pitch is automatically controlled to avoid inconsistent tightening torque among the wires. This reduces the probability of problems such as poor contact, overheating, and unstable resistance during meter operation, improves the power supply reliability and metering accuracy of the meter, reduces the workload of staff, and also reduces the limitations of the meter in practical applications. It achieves synchronous and uniform clamping of multiple wire harnesses and synchronous equal torque tightening of multiple screws, fundamentally solving the problems of poor contact and uneven force caused by uneven torque when multiple wire harnesses are connected in existing meters.

[0020] In this embodiment, a distance adjustment assembly is provided on the guide tube 8 for adapting screws of different heights. The distance adjustment assembly includes a locking base 9, which is installed on the guide tube 8; a locking cylinder 29, which is fixedly connected to the locking base 9; a locking limit plate 30, which is connected to the end of the locking cylinder 29 away from the locking base 9; a locking slider 31, which is connected through the locking cylinder 29; the locking slider 31 and the locking cylinder 29 are in sliding engagement; and a locking spring 32, which is sleeved on the locking cylinder 29; one end of the locking spring 32 is connected to the locking limit plate. 30 is fixedly connected, and the other end is fixedly connected to the locking slider 31; the locking slot 33 is through and set on the guide square post 12; several locking slots 33 are arranged at equal intervals; the locking horizontal plate 34 is located on one side of the locking slot 33; two locking sliders 31 are connected to the locking horizontal plate 34 together; the handle 35 is connected to the side of the locking horizontal plate 34 away from the locking slot 33; the locking insert 36 is fixedly connected to the side of the locking horizontal plate 34 near the locking slot 33; after passing through the guide square tube 8, the locking insert 36 is connected to one of the locking slots 33; During operation, the locking assembly is installed on the guide tube 8. The operator pulls the locking plate 34 by the handle 35, causing the locking slider 31 to slide along the locking cylinder 29 and compress the locking spring 32. This causes the locking insert 36 to disengage from the current locking slot 33, releasing the locking state between the guide post 12 and the guide tube 8. At this time, the extension length of the guide post 12 within the guide tube 8 can be adjusted according to the screw height. After the guide post 12 moves to the appropriate position, the handle 35 is released, and the locking spring 32 rebounds, pushing the locking slider 31 back to its original position. The locking plate 34 drives the locking block 36 to re-insert into the corresponding locking slot 33, locking the guide post 12 and the guide tube 8 in place, thus achieving precise adaptation to screws of different heights. This component can quickly and reliably lock the axial position of the guide post 12, ensuring that the screwdriver 38 is precisely matched with the screw height during the tightening operation, avoiding incomplete tightening or excessive compression due to height deviation, improving the flexibility and operational stability of adapting to different specifications of terminals, while simplifying the height adjustment operation process and improving the efficiency of smart meter wiring assembly. When adjusting the working height of the screwdriver 38, the guide post 12 is limited to move within the guide tube 8, causing the guide spring 39 to be in a buffer state. When the guide post 12 is limited to the current position, the guide spring 39, which was originally in a buffer state, cannot return to its original position. The resulting force acts on the guide post 12 to strengthen the contact strength and friction between the locking slider 31 and the locking slot 33. This prevents the locking slider 31 from dislodging or moving due to non-human factors when limiting the guide post 12, thus improving the stability and accuracy of the screwdriver 38 and ensuring the safety of the meter, thereby reducing its limitations in practical applications.

[0021] Working principle: When wiring the meter, the starter 4 drives the displacement screw 5 to rotate, using two sections of threaded area with opposite directions to drive two displacement blocks 17 to move synchronously relative to each other. Anti-rotation guidance is achieved through the limit plate 18, limit slide column 20, and limit base 19. The displacement blocks 17 drive the two drive horizontal plates 22 to move synchronously towards the wire harness via the second bent rod 21. After the drive clamp 25 contacts the wire harness with the rubber energy-absorbing pad 26, the drive cylinder 23 slides relative to the drive horizontal plate 22 and compresses the drive spring 27, achieving flexible clamping. At the same time, the signal patch 28 conducts feedback to ensure the clamping is in place, completing the synchronous and uniform clamping of multiple wire harnesses. When the drive horizontal plate 22 moves, it links the positioning horizontal plate 7 through the first bent rod 11, causing the positioning cylinder 6 to slide along the positioning cylinder 3 and compress the positioning spring 10, driving the entire same-position screwing unit closer to the wiring surface. The operator can adjust the locking distance assembly via the handle 35. Pull the locking plate 34 to disengage the locking block 36 from the locking slot 33. Adjust the extension length of the guide post 12 within the guide tube 8 to accommodate screws of different heights. After releasing the handle 35, the locking spring 32 rebounds, causing the locking block 36 to re-insert into the locking slot 33, locking the guide post 12 in position. The buffering force of the guide spring 39 further enhances the locking stability. Subsequently, the guide slider 15 slides along the guide groove 14 to match the screw spacing. The electric telescopic rod 16 pushes the drive block 37 to abut against the screws with the screwdriver 38. The screwdriver 38 rotates to complete the synchronous tightening of multiple screws with equal torque. The entire process realizes the linkage operation of wire harness clamping and screw tightening, fundamentally solving the problems of poor contact and uneven force caused by uneven torque when multiple wire harnesses are connected in existing electricity meters. This ensures that multiple wires are subjected to uniform force, improves power supply reliability and metering accuracy, and reduces safety risks and application limitations.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart meter, comprising a body; characterized in that: A U-shaped base is installed on the side of the main body; two positioning cylinders are symmetrically installed on the wiring surface of the main body; a wire harness clamping device is provided on the U-shaped base for synchronously clamping multiple wire harnesses. The wire harness clamping device includes a driving source and is mounted on the side of the U-shaped base; A displacement screw is installed inside a U-shaped base; the output end of the drive source is rotatably connected to the end of the displacement screw. The positioning cylinder is equipped with a co-positioning screwing unit for simultaneously tightening screws that fix multiple wire harnesses on the main body; the co-positioning screwing unit includes a positioning cylinder that fits into the positioning cylinder; the positioning cylinder and the positioning cylinder are in sliding fit. A positioning horizontal plate is located on one side of the wiring surface of the main body; the two positioning cylinders are connected together on the positioning horizontal plate; A guide tube is installed on a positioning plate; the guide tube is equipped with a scheduling locking assembly for adapting screws of different heights; the scheduling locking assembly includes a locking base, which is installed on the guide tube.

2. A smart meter according to claim 1, characterized in that: It includes a positioning spring, which is disposed inside the positioning cylinder; one end of the positioning spring is fixedly connected to the bottom surface inside the positioning cylinder, and the other end is fixedly connected to the positioning cylinder. The first bent rod is connected to the positioning horizontal plate; The guide column is fitted inside the guide tube; the guide tube and the guide column slide together.

3. A smart meter according to claim 2, characterized in that: Includes a guide crossbar, installed on the guide square post; The guide groove is located on the side of the guide plate near the wiring surface of the main body; The guide slider is fitted into the guide groove; several guide sliders slide in conjunction with the guide groove. The electric telescopic rod is installed on the side of the guide slider near the wiring surface of the main body.

4. A smart meter according to claim 1, characterized in that: It includes a threaded section, which is located on the displacement screw; the two threaded sections are symmetrically arranged and have opposite directions of rotation; Displacement blocks are installed on the displacement screw; the two displacement blocks are respectively threaded into the two threaded areas. Limiting plate, installed on displacement block; Limiting base, connected to the U-shaped base; A limiting slide post is fixedly connected to a limiting square plate; the limiting slide post is connected through the limiting base, and the limiting slide post and the limiting base are in sliding engagement.

5. A smart meter according to claim 4, characterized in that: It includes a second bent rod, one end of which is connected to a displacement block, and the other end is connected to a drive cross plate; the two drive cross plates are located on both sides of the wire harness; one of the drive cross plates is connected to the end of the first bent rod away from the positioning cross plate. The driving cylinder is connected through the driving horizontal plate to the side near the wire harness; the driving horizontal plate and the driving cylinder are in sliding fit. The drive limit plate is fixedly connected to the end of the drive cylinder away from the wire harness. The drive clamp is fixedly connected to one end of the drive cylinder near the wire harness. A rubber energy-absorbing pad is installed on the drive clamp block near the wiring harness; the wiring harness is located on the moving path of the rubber energy-absorbing pad.

6. A smart meter according to claim 5, characterized in that: Includes a drive spring, which is sleeved on the drive cylinder; one end of the drive spring is fixedly connected to the drive limiting plate, and the other end is fixedly connected to the drive cross plate. Signal patches are mounted on the opposite surfaces of the drive clamp and the drive cross plate, respectively; the two signal patches are electrically connected.

7. A smart meter according to claim 1, characterized in that: Includes a locking cylinder, which is fixedly connected to the locking base; A locking limit plate is connected to the end of the locking cylinder away from the locking base; A locking slider is connected through the locking cylinder; the locking slider and the locking cylinder slide in a sliding fit. A locking spring is sleeved on a locking cylinder; one end of the locking spring is fixedly connected to the locking limit plate, and the other end is fixedly connected to the locking slider.

8. A smart meter according to claim 7, characterized in that: Includes a locking slot, which is installed through the guide post; several locking slots are arranged at equal intervals; A locking plate is located on one side of the locking slot; two locking sliders are connected to the locking plate. The handle is attached to the side of the lock plate away from the lock slot. The locking block is fixedly connected to the side of the locking plate near the locking slot.

9. A smart meter according to claim 8, characterized in that: The locking block passes through the guide tube and connects to one of the locking slots.

10. A smart meter according to claim 3, characterized in that: Includes a drive block, which is installed on the output end of the electric telescopic pole; The screwdriver is connected to the drive block; the drive block and the screwdriver are coaxial, and the two rotate in conjunction. A guide spring is installed inside the guide tube; one end of the guide spring is fixedly connected to the bottom surface of the guide tube, and the other end is fixedly connected to the guide post.

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