Electric energy meter with lead bending prevention function

Abstract

The invention relates to the technical field of electric energy meters, in particular to an electric energy meter with a wire bending prevention function. Comprising an electric energy meter base and an electric energy meter top cover, a mounting groove is formed in the lower end of the electric energy meter base, a metal wiring guide rail is fixedly connected in the mounting groove, an adjusting frame is slidably connected in the mounting groove, a connecting sliding rail is fixedly connected in the adjusting frame, and a metal wiring end is arranged at the end, away from the metal wiring guide rail, of the connecting sliding rail; the metal wiring end comprises metal pressing pieces which are connected to the two sides of the connecting sliding rail in a sliding mode, the metal pressing pieces are connected to the bottom of the adjusting frame in a sliding mode, and reset extension springs are arranged between the metal pressing pieces and the adjusting frame; the problem that the binding posts of the current electric energy meter are fixedly arranged and cannot be subjected to position adjustment according to the actual length of a field wire is effectively solved; the wiring terminal is convenient to install, the installation efficiency can be effectively improved, and meanwhile the problem that the wiring terminal is damaged due to the fact that wires need to be bent during connection can be effectively solved.

Description

Technical Field

[0001] This invention relates to the field of electricity meter technology, and specifically to an electricity meter with a function to prevent wire bending. Background Technology

[0002] As a core device in the power system used to measure electricity consumption, the electricity meter is widely used in various electricity consumption scenarios such as homes, industries, and commerce. The rationality and reliability of its wiring and installation directly affect the accuracy of electricity metering, electricity safety, and the service life of the equipment. In the actual installation process of the electricity meter, the wire, as the carrier of electrical energy transmission, must be firmly connected to the terminals of the electricity meter to achieve stable transmission and measurement of electrical energy.

[0003] Currently, the terminals of electricity meters are all fixed and cannot be adjusted according to the actual length of the wires on site. This leads to many difficult technical problems during wiring and installation. Due to the complex on-site wiring environment, it is difficult to accurately control the reserved length of the wires. To avoid the problem of the wires being too short to connect to the terminals and causing installation failure, the wires used in actual installation are usually left with a certain amount of redundant length, which causes the wires to bend after connecting to the electricity meter terminals.

[0004] Especially for conductors used for power transmission, which have high structural strength, bending them is difficult. This not only significantly increases the workload for installers and reduces the efficiency of meter installation and connection, causing great inconvenience to on-site installation, but also, due to the inherent strength reaction force of the conductor, causes a continuous reverse tensile force on the terminal block after bending. This can easily lead to loosening of the connection between the conductor and the terminal block, or even the conductor detaching from the terminal block, resulting in power outages and affecting the normal operation of electrical equipment.

[0005] Therefore, the present invention provides an energy meter with a wire bending prevention function to solve the above problems. Summary of the Invention

[0006] In view of the above situation and to overcome the defects of the prior art, the present invention provides an energy meter with anti-bending function for wires, which effectively solves the problem that the terminals of the current energy meters are all fixed and cannot be adjusted according to the actual length of the wires on site, and the reserved length of the wires is difficult to control accurately, so as to avoid the problem that the wires are too short to be connected to the terminals and thus cause installation failure.

[0007] At the same time, the wire itself has high strength, making bending operations difficult. The bent wire exerts a continuous reverse pulling force on the terminal, which can easily cause the connection between the wire and the terminal to loosen, resulting in the wire detaching from the terminal.

[0008] The solution to the technical problem of the present invention is as follows: An energy meter with anti-wire bending function includes an energy meter base and an energy meter top cover. The lower end of the energy meter base is provided with an installation groove. Multiple metal wiring rails connected to the inside of the energy meter are fixedly connected inside the installation groove. An adjustment frame is slidably connected inside the installation groove. Multiple connecting slide rails that are slidably connected to the metal wiring rails are fixedly connected inside the adjustment frame. A metal terminal is provided at the end of the connecting slide rail away from the metal wiring rail. The metal terminal includes metal clamping members slidably connected to both sides of the connecting slide rail. The metal clamping members are slidably connected to the bottom of the adjusting frame. A reset tension spring is provided between the metal clamping members and the adjusting frame. The lower ends of the base and top cover of the electricity meter are respectively provided with an extended concealing base and an extended concealing top cover for concealing the adjustment frame. The extended cover is provided with a clamping structure for pushing the two metal clamping members to move closer to each other.

[0009] Preferably, the clamping structure includes a push block fixedly connected to the upper end of the metal clamping member, a trapezoidal guide block fixedly connected above the push block, a push plate slidably connected to the extended cover for pushing the trapezoidal guide block to move closer to the connecting slide rail, and a compression spring provided between the push plate and the extended cover, wherein the elastic force of the compression spring is greater than the elastic force of the return tension spring.

[0010] Preferably, a plurality of spaced connecting limiting teeth are fixedly connected above the trapezoidal guide block, and a plurality of connecting fixing teeth that cooperate with the connecting limiting teeth are fixedly connected on the extended shielding top cover.

[0011] Preferably, the inner surfaces of the connecting slide rail and the metal wiring guide rail that are in contact with each other are fixedly connected with a plurality of spaced elastic connecting plates.

[0012] Preferably, an arc-shaped clamping groove is provided on the side of the two metal clamping members that are close to each other, and a plurality of spaced contact plates are fixedly connected inside the arc-shaped clamping groove.

[0013] Preferably, the lower end of the adjustment frame is provided with two parallel isolation plates, each of the two isolation plates is provided with a plurality of wiring ports corresponding to the metal wiring terminals, each wiring port is provided with a wire fixing structure, and the wire fixing structure is installed between the two isolation plates; The wire fixing structure includes two wire clamping members slidably connected to both sides of the terminal. The wire clamping members are slidably connected to each other. A separation spring is provided between the wire clamping members and the adjusting frame. An adjusting guide block with a trapezoidal cross-section is slidably connected to the side of the wire clamping member away from the terminal. An adjusting spring is provided between the adjusting guide block and the wire clamping members. The elastic force of the adjusting spring is greater than that of the separation spring. A control guide rod is slidably connected between the two isolation plates. An unlocking spring is provided between the control guide rod and the adjustment frame. A pushing and squeezing block that cooperates with the adjustment guide block is fixedly connected to the side of the control guide rod near the wire clamping member. The upper end of the control guide rod is provided with a guide slope that cooperates with the extended concealing top cover.

[0014] Preferably, the upper end of the wire clamping member is fixedly connected with a plurality of spaced wire limiting teeth, and the side of the control guide rod near the wire clamping member is fixedly connected with a wire fixing plate, and the lower end of the wire fixing plate is provided with a wire limiting groove that cooperates with the wire limiting teeth.

[0015] Preferably, a temporary fixing structure for temporarily fixing the wire is provided on the isolation plate near the metal terminal; The temporary fixing structure includes two temporary fixing plates that are slidably connected to both sides of the wiring port. An arc-shaped groove is provided on the side of the temporary fixing plates that are close to each other. A temporary compression spring is provided between the temporary fixing plates and the isolation plate.

[0016] Preferably, the bottom of the adjustment frame is detachably connected to a dustproof plate, and the dustproof plate has a dustproof opening that matches the wiring port.

[0017] Preferably, a top cover threaded shaft is rotatably connected to the top cover of the energy meter, a top cover drive worm gear is fixedly connected to one end of the top cover threaded shaft, a top cover drive worm is rotatably connected to the top cover of the energy meter and meshes with the top cover drive worm gear, and the extended cover and the top cover threaded shaft are threadedly connected. An extension threaded shaft is rotatably connected to the top cover of the energy meter. An extension drive worm gear is fixedly connected to one end of the extension threaded shaft. An extension drive worm gear that meshes with the extension drive worm gear is rotatably connected to the top cover of the energy meter. The adjustment frame is threadedly connected to the extension threaded shaft.

[0018] The beneficial effects of this invention are as follows: This invention addresses the problem that current electricity meters have fixed terminals that cannot be adjusted according to the actual length of the wires on site, and that the reserved length of the wires is difficult to control precisely, thus reducing the occurrence of bending. This is achieved by adding an installation slot, a metal wiring guide rail, an adjustment bracket, a connecting slide rail, a metal terminal, a metal clamping component, a reset tension spring, an extended shielding base, an extended shielding top cover, a trapezoidal guide block, a push plate, and a compression spring. By adding connecting limiting teeth and connecting fixing teeth, the position of the fixed metal clamping component is achieved, thereby fixing the metal end of the wire to the metal clamping component. By adding an isolation plate, a connection port, a wire clamping component, a separation spring, an adjusting guide block, an adjusting spring, a control guide rod, an unlocking spring, and a pushing squeezing block, wires of different thicknesses can be clamped, thereby fixing the wires on the adjusting frame. This invention is easy to install, effectively improves installation efficiency, and effectively solves the problem of damage to terminals caused by bending during wire connection. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall assembly of the present invention; Figure 2 This is a schematic diagram of one usage state of the present invention; Figure 3 This is a schematic diagram of another usage state of the present invention; Figure 4 This is a schematic diagram of the internal structure of the present invention; Figure 5 This is a schematic diagram showing the installation position of the metal clamping component inside the adjusting frame of the present invention; Figure 6 This is a schematic diagram of the installation position of the connecting slide rail of the present invention; Figure 7 This is the present invention. Figure 6 Enlarged view of a portion of point A in the middle; Figure 8 This is a schematic diagram of the fixing position of the connecting fixing teeth in this invention; Figure 9 This is a schematic diagram of the connection fixing teeth and the connection limiting teeth of the present invention. Figure 10 This is the present invention. Figure 9Enlarged view of a portion of point B in the middle; Figure 11 This is a schematic diagram of the installation position of the push block in this invention; Figure 12 This is a cross-sectional view of the installation position of the wire clamping component of the present invention; Figure 13 This is the present invention. Figure 12 Enlarged view of a portion of point C in the middle; Figure 14 This is a schematic diagram of the wire clamping component of the present invention in use; Figure 15 This is the present invention. Figure 14 Enlarged view of a portion of point D; Figure 16 This is a schematic diagram of the installation position of the temporary fixing plate of the present invention.

[0021] In the diagram: 1. Electricity meter base; 2. Electricity meter top cover; 3. Mounting slot; 4. Metal wiring guide rail; 5. Adjustment bracket; 6. Connecting slide rail; 7. Metal clamping component; 8. Return tension spring; 9. Extended shielding base; 10. Extended shielding top cover; 11. Push block; 12. Trapezoidal guide block; 13. Push plate; 14. Compression spring; 15. Connecting limit tooth; 16. Connecting fixing tooth; 17. Elastic connecting plate; 18. Arc-shaped clamping groove; 19. Contact plate; 20. Isolation plate; 21. Wiring port; 22. 24. Wire clamping component; 25. Adjusting guide block; 26. Adjusting spring; 27. Control guide rod; 28. Unlocking spring; 29. ​​Pushing squeezing block; 30. Wire limiting tooth; 31. Wire fixing plate; 32. Wire limiting groove; 33. Temporary fixing plate; 34. Arc groove; 35. Temporary clamping spring; 36. Dustproof plate; 37. Dustproof port; 38. Top cover threaded shaft; 39. Top cover drive worm gear; 40. Top cover drive worm; 41. Extension threaded shaft; 42. Extension drive worm gear; 43. Extension drive worm. Detailed Implementation

[0022] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0023] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. 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.

[0024] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this invention, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0025] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the shape, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0026] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0027] Example 1, refer to the appendix of the instruction manual. Figure 1-16An energy meter with anti-wire bending function includes an energy meter base 1 and an energy meter top cover 2. The lower end of the energy meter base 1 is provided with a mounting groove 3. Multiple metal wiring rails 4 connected to the inside of the energy meter are fixedly connected inside the mounting groove 3. An adjustment frame 5 is slidably connected inside the mounting groove 3. Multiple connecting slide rails 6 that are slidably connected to the metal wiring rails 4 are fixedly connected inside the adjustment frame 5. The cross-section of the metal wiring rails 4 is set in an I-shape. Multiple spaced elastic connecting plates 17 are fixedly connected to the inner surfaces of the connecting slide rails 6 and the metal wiring rails 4. This arrangement allows the elastic connecting plates 17 to be in close contact with the metal wiring rails 4, thereby ensuring close contact between the metal wiring rails 4 and the connecting slide rails 6 and improving connection stability.

[0028] A metal terminal is provided at the end of the connecting slide rail 6 away from the metal wiring guide rail 4. The metal terminal is used to connect wires. The metal terminal includes metal clamping parts 7 that are slidably connected to both sides of the connecting slide rail 6. An arc-shaped clamping groove 18 is provided on the side of the two metal clamping parts 7 that are close to each other. Multiple spaced contact plates 19 are fixedly connected inside the arc-shaped clamping groove 18. The metal clamping component 7 is slidably connected to the bottom of the adjusting frame 5. A reset tension spring 8 is provided between the metal clamping component 7 and the adjusting frame 5. In the initial state, the metal clamping component 7 is pulled away from each other by the action of the reset tension spring 8. In use, place the metal end of the wire between the two metal clamping parts 7, push the two metal clamping parts 7 toward each other until the metal end of the wire is clamped between the two arc-shaped clamping grooves 18, and make the contact plate 19 and the metal end of the wire in close contact by setting the contact plate 19.

[0029] The lower ends of the electricity meter base 1 and the electricity meter top cover 2 are respectively provided with an extended shielding base 9 and an extended shielding top cover 10 for shielding the adjustment frame 5.

[0030] The extended cover 10 is provided with a clamping structure for pushing the two metal clamping parts 7 to move closer to each other; The clamping structure includes a push block 11 fixedly connected to the upper end of the metal clamping member 7. A trapezoidal guide block 12 is fixedly connected above the push block 11. A push plate 13 is slidably connected on the extended cover 10 to push the trapezoidal guide block 12 toward the direction of the connecting slide rail 6. The cross section of the push plate 13 is set as a right trapezoid. A compression spring 14 is provided between the push plate 13 and the extended cover 10. In the initial state, the push plate 13 is driven to move toward the direction of the trapezoidal guide block 12 under the action of the compression spring 14, and the elastic force of the compression spring 14 is greater than the elastic force of the return tension spring 8.

[0031] In use, after fixing the electricity meter, stretch the reserved wire to the lower end of the adjustment bracket 5, then trim the excess wire, push the adjustment bracket 5 out of the mounting slot 3, and place the metal end of the wire between the two metal clamping parts 7; then push the extended shielding base 9 and the extended shielding top cover 10 towards the adjustment bracket 5, so that the inclined surface of the push plate 13 contacts the inclined surface of the trapezoidal guide block 12, and then continue to push the extended shielding base 9 and the extended shielding top cover 10. At this time, the trapezoidal guide block 12 is pushed by the compression spring 14. The pusher block 11 and the metal clamping member 7 move synchronously towards each other, thereby stretching and resetting the tension spring 8 and clamping the metal end of the wire. After the arc-shaped clamping groove 18 clamps the metal end of the wire, the extension shielding base 9 and the extension shielding top cover 10 continue to be pushed. At this time, the trapezoidal guide block 12 can no longer move towards each other, and the metal clamping member 7 can no longer move. The pusher plate 13 moves away from each other through the trapezoidal guide block 12 to compress the spring 14, thereby facilitating the clamping of wires of different diameters.

[0032] Multiple spaced connecting limit teeth 15 are fixedly connected above the trapezoidal guide block 12, and multiple connecting fixing teeth 16 that cooperate with the connecting limit teeth 15 are fixedly connected on the extended cover 10.

[0033] When in use, after the extended cover 10 moves toward the adjustment frame 5 and completely covers the adjustment frame 5, the connecting fixing tooth 16 is inserted between two adjacent connecting limiting teeth 15, thereby fixing the trapezoidal guide block 12 in the current position by the connecting limiting tooth 15 and the connecting fixing tooth 16, so as to prevent the metal end of the wire and the metal clamping member 7 from losing contact.

[0034] In embodiment 2, the lower end of the adjustment frame 5 is provided with two parallel isolation plates 20. Each of the two isolation plates 20 is provided with multiple wiring ports 21 corresponding to the metal wiring terminals. The wiring ports 21 are U-shaped with one side open. Each wiring port 21 is provided with a wire fixing structure, and the wire fixing structure is installed between the two isolation plates 20. The wire fixing structure includes two wire clamping parts 22 that are slidably connected to both sides of the terminal 21. An arc-shaped groove is provided on the side of the two wire clamping parts 22 that are close to each other. The arc-shaped groove is used to clamp the insulation layer of the wire. The wire clamping parts 22 are slidably connected to each other. A separation spring is provided between the wire clamping parts 22 and the adjusting frame 5. In the initial state, the separation spring pulls the wire clamping parts 22 to pull them away from each other, so as to facilitate the placement of the wire between the two wire clamping parts 22. An adjusting guide block 24 with a trapezoidal cross section is slidably connected to the side of the wire clamping parts 22 that is away from the terminal 21. An adjusting spring 25 is provided between the adjusting guide block 24 and the wire clamping parts 22. The elastic force of the adjusting spring 25 is greater than that of the separation spring. A control guide rod 26 is slidably connected between the two isolation plates 20. An unlocking spring 27 is provided between the control guide rod 26 and the adjustment frame 5. In the initial state, the control guide rod 26 is pushed to move away from the adjustment frame 5 under the action of the unlocking spring 27. A push pressing block 28 that cooperates with the adjustment guide block 24 is fixedly connected to the side of the control guide rod 26 near the wire clamping member 22. The cross section of the push pressing block 28 is set as a right trapezoid. The upper end of the control guide rod 26 is provided with a guide slope that cooperates with the extended cover 10.

[0035] In the initial state, the inclined surface of the pushing extrusion block 28 and the inclined surface of the adjusting guide block 24 are in contact; In use, push the adjusting bracket 5 out of the mounting slot 3, place the metal end of the wire between the two metal clamping pieces 7, and push the extended shielding base 9 and the extended shielding top cover 10 towards the adjusting bracket 5 until the extended shielding top cover 10 and the inclined surface of the upper end of the control guide rod 26 contact each other, and then push the control guide rod 26 downward to press the unlocking spring 27. When the control guide rod 26 moves downward, it pushes the inclined surface of the pressing block 28 to push the inclined surface of the adjusting guide block 24 to fit together. Then, it pushes the pressing block 28 to push the adjusting guide block 24 towards the terminal 21. Under the action of the adjusting spring 25, it pushes the wire clamping piece 22 towards the terminal 21 until the two wire clamping pieces 22 press the wire insulation layer and fix the wire in the current position. Then, continue to push the control guide rod 26 downward. The wire clamping piece 22 can no longer move towards the terminal 21. At this time, push the pressing block 28 to push the adjusting guide block 24 towards the wire clamping piece 22 to press the adjusting spring 25, thereby fixing wires of different diameters.

[0036] The upper end of the wire clamping member 22 is fixedly connected with a plurality of spaced wire limiting teeth 29. The control guide rod 26 is fixedly connected to a wire fixing plate 30 on the side near the wire clamping member 22. The lower end of the wire fixing plate 30 is provided with a wire limiting groove 31 that cooperates with the wire limiting teeth 29.

[0037] When the control guide rod 26 moves to its limit position in the direction close to the wire clamping member 22, the wire limiting tooth 29 engages with the wire limiting groove 31, thereby fixing the wire clamping member 22 in the current position and preventing the wire from coming off between the wire clamping members 22.

[0038] In embodiment three, a temporary fixing structure for temporarily fixing the wire is provided on the isolation plate 20 near the metal terminal; The temporary fixing structure includes two temporary fixing plates 32 that are slidably connected to both sides of the connection port 21. An arc-shaped groove 33 is provided on the side of the temporary fixing plates 32 that are close to each other. A temporary compression spring 34 is provided between the temporary fixing plates 32 and the isolation plate 20. In the initial state, the temporary compression spring 34 pushes the temporary fixing plates 32 to move closer to the connection port 21. When in use, the insulated wire is inserted between the two temporary fixing plates 32, the arc-shaped groove 33 and the insulated wire are in contact, and the temporary fixing plate 32 is pushed to press the wire under the action of the temporary clamping spring 34.

[0039] In embodiment four, a dustproof plate 35 is detachably connected to the bottom of the adjustment frame 5. The dustproof plate 35 has a dustproof opening 36 that matches the wiring port 21. The dustproof opening 36 is U-shaped. During installation, the dustproof plate 35 is inserted into the bottom of the adjustment frame 5, and the dustproof port 36 passes through the wire. The dustproof port 36 covers the wiring port 21 to prevent debris from passing through the U-shaped wiring port 21 and entering the inside of the electricity meter.

[0040] In embodiment 5, a top cover threaded shaft 37 is rotatably connected to the top cover 2 of the electricity meter. One end of the top cover threaded shaft 37 is fixedly connected to a top cover drive worm gear 38. A top cover drive worm 39 that meshes with the top cover drive worm gear 38 is rotatably connected to the top cover 2 of the electricity meter, extending and covering the top cover 10 and the top cover threaded shaft 37 in a threaded connection. In use, by rotating the top cover drive worm 39, the top cover drive worm 39 drives the top cover drive worm wheel 38 to rotate, and the top cover drive worm wheel 38 drives the top cover threaded shaft 37 to rotate, thereby causing the extended cover 10 to slide on the top cover 2 of the energy meter, and simultaneously driving the extended cover base 9 to move.

[0041] An extension threaded shaft 40 is rotatably connected to the top cover 2 of the electricity meter. An extension drive worm gear 41 is fixedly connected to one end of the extension threaded shaft 40. An extension drive worm 42 that meshes with the extension drive worm gear 41 is rotatably connected to the top cover 2 of the electricity meter. The adjusting frame 5 is threadedly connected to the extension threaded shaft 40.

[0042] In use, by rotating the extension drive worm 42, the extension drive worm wheel 41 is driven to rotate, thereby driving the extension threaded shaft 40 to rotate, which in turn pushes the adjustment bracket 5 to move inside the mounting slot 3.

[0043] Both the extension drive worm 42 and the top cover drive worm 39 are fixedly connected with hexagonal nuts. During use, the rotation of the hexagonal nuts is controlled by turning the hexagonal nuts with an Allen wrench.

[0044] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An energy meter with anti-wire bending function, comprising an energy meter base (1) and an energy meter top cover (2), characterized in that, The lower end of the base (1) of the electricity meter is provided with an installation groove (3). Multiple metal wiring rails (4) connected to the inside of the electricity meter are fixedly connected inside the installation groove (3). An adjustment frame (5) is slidably connected inside the installation groove (3). Multiple connecting slide rails (6) that are slidably connected to the metal wiring rails (4) are fixedly connected inside the adjustment frame (5). A metal terminal is provided at the end of the connecting slide rail (6) away from the metal wiring rails (4). The metal terminal includes a metal clamping member (7) that is slidably connected to both sides of the connecting slide rail (6). The metal clamping member (7) is slidably connected to the bottom of the adjusting frame (5). A reset tension spring (8) is provided between the metal clamping member (7) and the adjusting frame (5). The lower ends of the base (1) and top cover (2) of the electricity meter are respectively provided with an extended shielding base (9) and an extended shielding top cover (10) for shielding the adjustment frame (5). The extended cover (10) is provided with a clamping structure for pushing the two metal clamping members (7) to move closer to each other.

2. An energy meter with anti-wire bending function according to claim 1, characterized in that, The clamping structure includes a push block (11) fixedly connected to the upper end of the metal clamping member (7), a trapezoidal guide block (12) fixedly connected above the push block (11), and a push plate (13) slidably connected on the extended cover (10) for pushing the trapezoidal guide block (12) to move closer to the connecting slide rail (6). A compression spring (14) is provided between the push plate (13) and the extended cover (10), and the elastic force of the compression spring (14) is greater than the elastic force of the return tension spring (8).

3. An energy meter with anti-wire bending function according to claim 2, characterized in that, The trapezoidal guide block (12) is fixedly connected with a plurality of spaced connecting limiting teeth (15), and the extended cover (10) is fixedly connected with a plurality of connecting fixing teeth (16) that cooperate with the connecting limiting teeth (15).

4. An energy meter with anti-wire bending function according to claim 1, characterized in that, Multiple spaced elastic connecting plates (17) are fixedly connected to the inner side of the connecting slide rail (6) and the metal wiring guide rail (4) that are in contact with each other.

5. An energy meter with anti-wire bending function according to claim 1, characterized in that, An arc-shaped clamping groove (18) is provided on one side of the two metal clamping parts (7) that are close to each other, and a plurality of spaced contact plates (19) are fixedly connected inside the arc-shaped clamping groove (18).

6. An energy meter with anti-wire bending function according to claim 1, characterized in that, The lower end of the adjustment frame (5) is provided with two parallel isolation plates (20). Each of the two isolation plates (20) has multiple wiring ports (21) corresponding to the metal wiring terminals. Each wiring port (21) is provided with a wire fixing structure. The wire fixing structure is installed between the two isolation plates (20). The wire fixing structure includes two wire clamping members (22) that are slidably connected to both sides of the terminal (21). The wire clamping members (22) are slidably connected to each other. A separation spring is provided between the wire clamping member (22) and the adjusting frame (5). An adjusting guide block (24) with a trapezoidal cross section is slidably connected to the side of the wire clamping member (22) away from the terminal (21). An adjusting spring (25) is provided between the adjusting guide block (24) and the wire clamping member (22). The elastic force of the adjusting spring (25) is greater than that of the separation spring. A control guide rod (26) is slidably connected between the two isolation plates (20), and an unlocking spring (27) is provided between the control guide rod (26) and the adjustment frame (5). A push and squeeze block (28) that cooperates with the adjustment guide block (24) is fixedly connected to the side of the control guide rod (26) near the wire clamping member (22). The upper end of the control guide rod (26) is provided with a guide slope that cooperates with the extended cover (10).

7. An energy meter with anti-wire bending function according to claim 6, characterized in that, The upper end of the wire clamping member (22) is fixedly connected with a plurality of spaced wire limiting teeth (29), and the control guide rod (26) is fixedly connected with a wire fixing plate (30) on the side near the wire clamping member (22). The lower end of the wire fixing plate (30) is provided with a wire limiting groove (31) that cooperates with the wire limiting teeth (29).

8. An energy meter with anti-wire bending function according to claim 7, characterized in that, A temporary fixing structure for temporarily fixing the wire is provided on the isolation plate (20) near the metal terminal; The temporary fixing structure includes two temporary fixing plates (32) that are slidably connected to both sides of the wiring port (21). An arc-shaped groove (33) is provided on the side of the temporary fixing plates (32) that are close to each other. A temporary compression spring (34) is provided between the temporary fixing plates (32) and the isolation plate (20).

9. An energy meter with anti-wire bending function according to claim 7, characterized in that, The bottom of the adjustment frame (5) is detachably connected to a dustproof plate (35), and the dustproof plate (35) has a dustproof opening (36) that matches the wiring port (21).

10. An energy meter with anti-wire bending function according to claim 1, characterized in that, The top cover (2) of the electricity meter is rotatably connected to a top cover threaded shaft (37), one end of which is fixedly connected to a top cover drive worm gear (38), and the top cover (2) is rotatably connected to a top cover drive worm (39) that meshes with the top cover drive worm gear (38). The extended cover (10) and the top cover threaded shaft (37) are threadedly connected. An extension threaded shaft (40) is rotatably connected to the top cover (2) of the electricity meter. An extension drive worm gear (41) is fixedly connected to one end of the extension threaded shaft (40). An extension drive worm (42) that meshes with the extension drive worm gear (41) is rotatably connected to the top cover (2) of the electricity meter. The adjustment frame (5) is threadedly connected to the extension threaded shaft (40).

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