An anti-electricity theft type electronic energy meter

Abstract

The present invention relates to the technical field of electric energy meters, and discloses an anti-electricity theft electronic electric energy meter, comprising an electronic electric energy meter frame, a box cover, a sliding operating mechanism and a locking mechanism. A sealing slot is provided around the front of the electronic electric energy meter frame, and a positioning slot is provided in the middle of the upper and lower parts of the sealing slot; a sealing outer plate is welded around the inner outer side of the box cover, a sealing inner plate is provided inside the sealing outer plate, and plug plates are welded on the upper and lower parts of the sealing inner plate; the sliding operating mechanism is connected through the middle of the upper and lower parts of the box cover; the locking mechanism is respectively provided at the upper and lower parts of the electronic electric energy meter frame near the front end, and the locking mechanism passes through the inner upper wall of the electronic electric energy meter frame and is locked and connected to the plug plate. The anti-electricity theft electronic electric energy meter enhances the anti-disassembly performance of the electric energy meter, makes illegal disassembly more difficult, can effectively lock the box cover, and prevents illegal operation and electricity theft during normal use of the electric meter.

Description

Technical Field

[0001] The invention relates to the technical field of electric energy meters, in particular to an anti-electricity theft type electronic electric energy meter. Background Art

[0002] An electronic energy meter is a physical device that samples the user's power supply voltage and current in real time, uses a dedicated energy meter integrated circuit, processes the sampled voltage and current signals, multiplies them and converts them into pulse outputs proportional to the electrical energy, and displays them through a meter or digital display.

[0003] The existing sealing structure of electricity meters is relatively simple, easy to be illegally disassembled and damaged, and cannot effectively prevent the illegal opening of the meter cover, making illegal operation and electricity theft relatively easy. Some anti-disassembly and anti-electricity theft designs are too complicated, which brings inconvenience to the operation and maintenance of legal users and affects the user experience. Many electricity meters lack designs that are easy to maintain, resulting in inconvenient operation during legal maintenance and inspection and low maintenance efficiency.

[0004] Therefore, it is necessary to design corresponding technical solutions. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides an anti-electricity theft electronic watt-hour meter, which solves the technical problems that the existing watt-hour meter has a relatively simple sealing structure, is easily illegally disassembled and damaged, cannot effectively prevent the illegal opening of the meter cover, and is prone to illegal operation and electricity theft.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an anti-electricity theft electronic energy meter, comprising an electronic energy meter frame, a box cover, a sliding operating mechanism and a locking mechanism, mounting plates are welded and distributed on both sides of the electronic energy meter frame near the rear end, a sealing slot is opened around the front of the electronic energy meter frame, and a positioning slot is opened in the middle of the upper and lower parts of the sealing slot;

[0009] An electric meter value display screen is electrically connected to the upper front portion of the box cover, an observation window is provided at the lower portion of the box cover, a sealing outer plate is welded around the inner outer side of the box cover, a sealing inner plate is provided inside the sealing outer plate, and the sealing inner plate is welded to the inner side wall of the box cover, the sealing inner plate is aligned with the sealing slot, and plug plates are welded above and below the sealing inner plate;

[0010] The sliding operating mechanism is connected through the middle of the upper and lower parts of the box cover;

[0011] The locking mechanisms are respectively arranged at the upper and lower parts of the electronic energy meter frame near the front end, and the locking mechanisms pass through the inner upper wall of the electronic energy meter frame and are locked and connected to the plug board;

[0012] The sliding operation mechanism and the locking mechanism are located on the same horizontal plane, and the sliding operation mechanism locks the box cover after slidingly contacting the locking mechanism.

[0013] Preferably, a movable hole is provided at the lower part of the inner end of the positioning slot, and an extension slot is provided at the upper part of the inner end of the positioning slot, and the diameter of the extension slot is larger than the diameter of the movable hole; the movable hole is used for telescopically adjusting the lock column, and the extension slot is used for the lock column to extend through the lock hole and lock; a lock hole is provided at the near rear end of the plug plate; the locking mechanism includes a lock column, and the lock column is connected to the movable hole and the lock hole for locking, a pressure plate is welded at the inner end of the lock column, and a second spring is welded between the inner side of the movable hole and the pressure plate; the second spring is used for elastically supporting the telescopic adjustment of the lock column, and the pressure plate is used to increase the contact area so that the connecting plate two can be pressed upward.

[0014] Preferably, a protruding structure is welded to the outer end of the lock column, the diameter of the protruding structure is smaller than the diameter of the lock column, and a bracket is welded and distributed on the outer wall of the protruding structure, and a corner block is movably connected to the outside of the bracket, and a clamping block is welded on the top of the corner block, and a third spring is welded between the inner side of the corner block and the protruding structure, and the upper and lower parts of the clamping block are both arc-shaped structures, and the outermost end of the clamping block is located outside the vertical line of the lock column; the protruding structure is used to extend upward to firmly lock the plug plate, the bracket is used to movably support the corner block and the clamping block, the third spring is used to elastically support the corner block and the clamping block, and the clamping block is used to directly clamp onto the top of the lock hole, and the clamping block with arc-shaped structures on the upper and lower parts makes disassembly more convenient and has a good sliding effect.

[0015] Preferably, the locking mechanism also includes a fixing frame, a connecting plate 1, a limiting pulley and a connecting plate 2, pads are welded on both sides of the fixing frame, the pads are mounted on the inner side wall of the electronic power meter frame by bolts, the fixing frame is of N-shaped structure and is rotatably connected with a movable shaft 2 at the lower inner side, the rear end of the connecting plate 1 is fixedly arranged on the outside of the movable shaft 2, and the front of the connecting plate 1 is slightly inclined downward, the connecting plate 2 is fixedly arranged at the rear end of the connecting plate 1, a movable groove is provided in the front of the connecting plate 1, a movable shaft 3 is rotatably connected in front of the movable groove, the limiting pulley is fixedly arranged in the middle of the movable shaft 3, and the connecting plate 2 is located below the locking column; the pad is used to install the fixing frame of N-shaped structure on the inner side wall of the electronic power meter frame, the fixing frame is used to movably adjust the connecting plate 1 and the connecting plate 2, the movable shaft 2 supports its flipping adjustment, the movable groove is used to movably adjust the limiting pulley, and the movable shaft 3 supports the rotation of the limiting pulley.

[0016] The cam is provided with a first spring which is fixedly provided with a first end of a spring and a second end of a spring which is fixedly provided with a first spring and a second end of a spring which is fixedly provided with a first spring and a second end of a spring which is fixedly provided with a first spring and a second end of a spring which is fixedly provided with a first spring and a second end of a spring which is fixedly provided with a first spring and a second end of a spring.

[0017] Preferably, an operating frame is welded to the front outer end of the through hole one, an open groove is opened on the front upper part of the operating frame, the interior of the open groove is laterally connected to a movable shaft one for rotation, a fixed plate two is fixed to the outside of the movable shaft one, and a cover plate is fixed to the side of the fixed plate two; the operating frame is used to store components such as baffles, and the open groove and the movable shaft one are used to rotate and adjust the fixed plate two, thereby movably flipping the cover plate.

[0018] Preferably, a pull ring is welded to the outer wall of the cover plate, a magnetic plate is fixedly provided on the inner wall of the cover plate, and a metal partition frame is fixedly provided on the inner side near the front end of the operating frame; the pull ring is used for hand-held flipping operation of the cover plate, and the magnetic plate is used for fastening and adsorbing the metal partition frame, thereby sealing the operating frame.

[0019] Preferably, a fixing plate 1 is welded to the front end of the baffle, a through groove is provided in the middle of the interior of the fixing plate 1, a pad is welded to the inner upper end of the operating frame, a through hole 2 is provided on the upper interior of the fixing plate 1 and the interior of the pad, a lead seal is passed through a steel wire rope inside the through hole 2; the through groove is used to extend into and stretch the fixing plate 1 outward, the through hole 2 is used to pass the steel wire rope to lock the fixing plate 1 and the pad, and the lead seal restrains the fixing plate 1 to prevent it from moving outward and prevent electricity theft.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the present invention has the following beneficial effects: by arranging double-layer sealing inner plates and sealing outer plates around the box cover, and cooperating with the sealing slots and plug-in plates of the electronic electric energy meter frame, the overall sealing of the electric energy meter is ensured, which is dustproof and waterproof; the locking mechanism further enhances the anti-disassembly performance of the electric energy meter through the cooperation of the lock column, the pressure plate and the corner block, making illegal disassembly more difficult; the design of the second spring and the third spring enables the locking mechanism to maintain good elasticity and locking effect during long-term use; the sliding operating mechanism cooperates with the locking mechanism, and through the design of the moving rod and the sliding block, the box cover can be effectively locked to prevent illegal operation and electricity theft during normal use of the electric energy meter, making it more convenient for legal staff to operate while maintaining good protection performance; the magnetic suction plate and the metal partition frame arranged on the inner side of the operating frame are convenient for hiding the sliding operating mechanism, which is convenient for users to operate during legal maintenance and inspection, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall front upper right three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the upper left three-dimensional structure of the overall front part of the present invention;

[0024] Figure 3 It is a schematic diagram of the internal frame structure of the electric energy meter of the present invention;

[0025] Figure 4 It is a schematic diagram of the lower structure of the locking mechanism of the present invention;

[0026] Figure 5 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the locking mechanism of the present invention;

[0028] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0029] Figure 8 It is a schematic diagram of the inner structure of the electric energy meter box cover of the present invention;

[0030] Fig. 9 It is an enlarged structural schematic diagram of the sliding operating mechanism of the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of the elastic sliding device of the present invention;

[0032] Fig.11 It is a schematic diagram of the expanded structure of the operation frame of the present invention;

[0033] Fig.12 It is a schematic diagram of the structure of the operation frame of the present invention from another perspective;

[0034] Fig.13 For the present invention Fig.12 Enlarged structural diagram at point C in the middle.

[0035] In the figure, 1, electronic electric energy meter frame; 11, mounting plate; 12, sealing slot; 120, positioning slot; 121, movable hole; 122, extension slot; 2, box cover; 20, through hole 1; 21, meter value display screen; 22, observation window; 23, sealing inner plate; 24, sealing outer plate; 25, plug plate; 251, lock hole; 3, sliding operating mechanism; 31, moving rod; 311, first spring; 312, baffle; 313, fixed plate 1; 314, through hole 2; 315, through slot; 32, sliding block; 321, limit slot; 33, operating frame; 331, opening Mouth groove; 332, metal partition frame; 34, cover plate; 341, pull ring; 342, fixed plate 2; 343, magnetic plate; 344, movable shaft 1; 35, cushion block; 36, lead seal; 4, locking mechanism; 41, fixed frame; 411, movable shaft 2; 412, cushion plate; 42, connecting plate 1; 421, movable groove; 43, limiting pulley; 431, movable shaft 3; 44, connecting plate 2; 45, locking column; 451, second spring; 452, pressure plate; 453, raised structure; 4531, corner block; 4532, clamping block; 4533, third spring; 4534, bracket. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 13 The embodiment of the present invention provides a technical solution: an anti-electricity theft electronic energy meter, comprising an electronic energy meter frame 1, a box cover 2, a sliding operating mechanism 3 and a locking mechanism 4, mounting plates 11 are welded and distributed on both sides of the electronic energy meter frame 1 near the rear end, a sealing slot 12 is opened around the front of the electronic energy meter frame 1, and a positioning slot 120 is opened in the middle of the upper and lower parts of the sealing slot 12;

[0038] An electric meter value display screen 21 is electrically connected to the upper front portion of the box cover 2, and an observation window 22 is provided at the bottom of the box cover 2, so that the user can check the electric meter reading without removing the box cover 2, thereby improving the convenience of use. A sealing outer plate 24 is welded around the inner and outer sides of the box cover 2, and a sealing inner plate 23 is provided inside the sealing outer plate 24, and the sealing inner plate 23 is welded to the inner side wall of the box cover 2, and the sealing inner plate 23 is aligned with the sealing slot 12, and plug plates 25 are welded above and below the sealing inner plate 23;

[0039] The sliding operating mechanism 3 is connected through the middle of the upper and lower parts of the box cover 2;

[0040] The locking mechanism 4 is respectively arranged at the upper and lower parts of the electronic energy meter frame 1 near the front end, and the locking mechanism 4 passes through the inner upper wall of the electronic energy meter frame 1 and is locked and connected to the plug board 25;

[0041] The sliding operation mechanism 3 and the locking mechanism 4 are located on the same horizontal plane, and the sliding operation mechanism 3 locks the box cover 2 after slidingly contacting the locking mechanism 4 .

[0042] By arranging the double-layer sealing inner plate 23 and the sealing outer plate 24 around the box cover 2, and cooperating with the sealing slot 12 and the plug plate 25 of the electronic electric energy meter frame 1, the overall sealing of the electric energy meter is ensured, and the dust and water resistance is ensured. The locking mechanism 4 further enhances the anti-disassembly performance of the electric energy meter through the cooperation of the lock column 45, the pressure plate 452, and the corner block 4531, making it more difficult to disassemble illegally. The design of the second spring 451 and the third spring 4533 enables the locking mechanism 4 to maintain good elasticity and locking effect during long-term use. The sliding operating mechanism 3 cooperates with the locking mechanism 4. Through the design of the moving rod 31 and the sliding block 32, the box cover 2 can be effectively locked to prevent the electric meter from being illegally operated and stealing electricity during normal use, making it more convenient for legal staff to operate while maintaining good protection performance. The magnetic suction plate 343 and the metal partition frame 332 arranged on the inner side of the operating frame 33 are convenient for hiding the sliding operating mechanism 3, which is convenient for users to operate during legal maintenance and inspection, thereby improving maintenance efficiency.

[0043] As a further improvement, a movable hole 121 is provided below the inner end of the positioning slot 120, and an extension slot 122 is provided above the inner end of the positioning slot 120, wherein the diameter of the extension slot 122 is greater than the diameter of the movable hole 121;

[0044] The movable hole 121 is used for telescopically adjusting the locking column 45, and the extension groove 122 is used for the locking column 45 to pass through the locking hole 251 and extend into the locking hole 251 for locking;

[0045] A lock hole 251 is provided near the rear end of the plug plate 25;

[0046] The locking mechanism 4 includes a locking column 45, which is connected to the movable hole 121 and the locking hole 251 for locking. A pressure plate 452 is welded to the inner end of the locking column 45, and a second spring 451 is welded between the inner side of the movable hole 121 and the pressure plate 452;

[0047] The second spring 451 is used to elastically support the locking column 45 for telescopic adjustment, and the pressure plate 452 is used to increase the contact area so that the second connecting plate 44 can be pressed upward.

[0048] Further improved, a protruding structure 453 is welded on the outer end of the lock column 45, the diameter of the protruding structure 453 is smaller than the diameter of the lock column 45, a bracket 4534 is welded and distributed on the outer wall of the protruding structure 453, an angle block 4531 is movably connected to the outside of the bracket 4534, a clamping block 4532 is welded on the top of the angle block 4531, a third spring 4533 is welded between the inner side of the angle block 4531 and the protruding structure 453, the upper and lower parts of the clamping block 4532 are both arc-shaped structures, and the outermost end of the clamping block 4532 is located outside the vertical line of the lock column 45;

[0049] The raised structure 453 is used to extend upward and firmly lock the plug plate 25, the bracket 4534 is used to movably support the corner block 4531 and the clamping block 4532, the third spring 4533 is used to elastically support the corner block 4531 and the clamping block 4532, the clamping block 4532 is used to be directly clamped above the lock hole 251, and the clamping block 4532 with arc-shaped structures on the upper and lower sides makes disassembly more convenient and has a good sliding effect.

[0050] Further improved, the locking mechanism 4 also includes a fixing frame 41, a connecting plate 1 42, a limiting pulley 43 and a connecting plate 2 44, pads 412 are welded on both sides of the fixing frame 41, the pads 412 are installed on the inner wall of the electronic electric energy meter frame 1 by bolts, the fixing frame 41 is an N-shaped structure and the lower inner side is rotatably connected with a movable shaft 2 411, the rear end of the connecting plate 1 42 is fixedly arranged on the outside of the movable shaft 2 411, and the front of the connecting plate 1 42 is slightly inclined downward, the connecting plate 2 44 is fixedly arranged on the rear end of the connecting plate 1 42, a movable groove 421 is opened in front of the connecting plate 1 42, and the front of the movable groove 421 is rotatably connected with a movable shaft 3 431, the limiting pulley 43 is fixedly arranged in the middle of the movable shaft 3 431, and the connecting plate 2 44 is located below the locking column 45;

[0051] The pad 412 is used to install the N-shaped fixing frame 41 on the inner wall of the electronic power meter frame 1. The fixing frame 41 is used to flexibly adjust the connecting plate 1 42 and the connecting plate 2 44. The movable shaft 2 411 supports its flipping adjustment. The movable groove 421 is used to flexibly adjust the limiting pulley 43. The movable shaft 3 431 supports the rotation of the limiting pulley 43.

[0052] Further improved, the sliding operation mechanism 3 includes a moving rod 31 and a sliding block 32, a through hole 20 is opened in the middle of the upper and lower parts of the box cover 2, the moving rod 31 penetrates and is connected to the inside of the through hole 20, the sliding block 32 is a tapered structure backward and is welded to the inner end of the moving rod 31, a limiting groove 321 is opened below the sliding block 32, the rear end of the limiting groove 321 is an arc structure, a first spring 311 is welded between the outer side of the sliding block 32 and the inner side of the through hole 20, a baffle 312 is fixedly provided at the front end of the moving rod 31, the baffle 312 is located in front of the through hole 20, and the width of the limiting groove 321 is greater than the thickness of the limiting pulley 43;

[0053] The through hole 120 is used for movably adjusting the moving rod 31, the baffle 312 limits and blocks the moving rod 31 and facilitates external operation, the first spring 311 is used for elastically telescopically adjusting the sliding block 32, the sliding block 32 with a tapered structure backward is used to contact the limiting pulley 43 for active adjustment, the limiting groove 321 is embedded with the limiting pulley 43 to slide, and avoid detachment from the outside of the sliding block 32, so that the limiting pulley 43 is adjusted along the sliding block 32 with a tapered structure backward to the middle of the electronic electric energy meter frame 1, and then the connecting plate 1 42 is flipped.

[0054] As a further improvement, an operation frame 33 is welded to the front outer end of the through hole 1 20, an opening slot 331 is opened on the front upper part of the operation frame 33, a movable shaft 1 344 is connected to the inside of the opening slot 331 for horizontal rotation, a fixing plate 2 342 is fixed to the outside of the movable shaft 1 344, and a cover plate 34 is fixed to the side of the fixing plate 2 342;

[0055] The operating frame 33 is used to store components such as the baffle plate 312 , and the opening slot 331 and the movable shaft 1 344 are used to rotate and adjust the fixed plate 2 342 , thereby movably flipping the cover plate 34 .

[0056] As a further improvement, a pull ring 341 is welded to the outer wall of the cover plate 34, a magnetic attraction plate 343 is fixed to the inner wall of the cover plate 34, and a metal partition frame 332 is fixed to the inner side near the front end of the operating frame 33;

[0057] The pull ring 341 is used for holding and flipping the operating cover plate 34 , and the magnetic attraction plate 343 is used for fastening and adsorbing the metal partition frame 332 , thereby sealing the operating frame 33 .

[0058] Specifically, a fixing plate 313 is welded to the front end of the baffle 312, a through slot 315 is opened in the middle of the fixing plate 313, a cushion block 35 is welded to the inner upper end of the operating frame 33, a through hole 314 is opened on the upper part of the fixing plate 313 and the inside of the cushion block 35, and a lead seal 36 is connected to the inside of the through hole 314 through a steel wire rope;

[0059] The through slot 315 is used to extend into and pull the fixing plate 1 313 outward, the through hole 2 314 is used to pass a steel wire rope to lock the fixing plate 1 313 and the cushion block 35, and the lead seal 36 restrains the fixing plate 1 313 to prevent it from moving outward and prevent electricity theft.

[0060] Working principle: The electronic energy meter frame 1 is installed on the wall by passing bolts through the mounting plate 11;

[0061] Hold the pull ring 341 to open the cover plate 34 outwards, and then put your finger into the through slot 315, so that the fixed plate 313 is stretched outwards by the elastic action of the first spring 311, so that the moving rod 31 and the sliding block 32 are compressed outwards;

[0062] Install the box cover 2 backward to the front of the electronic energy meter frame 1, so that the sealing inner plate 23 is inserted into the sealing slot 12, the sealing outer plate 24 seals and covers the outer periphery of the electronic energy meter frame 1, and the plug plate 25 is accurately inserted into the positioning slot 120;

[0063] The fixing plate 1 313 is then released, and the movable rod 31 and the sliding block 32 are moved backwards by the elastic action of the first spring 311, and the limiting groove 321 below the sliding block 32 accurately limits the sliding limiting pulley 43, so that the connecting plate 1 42 is located in front of the movable shaft 2 411 and flipped inwards for adjustment, and at the same time, the connecting plate 24 is adjusted outwards, and the connecting plate 24 presses the pressure plate 452, and the second spring 451 elastically acts to make the locking column 45 and the protruding structure 453 pass through the locking hole 251 to lock the plug plate 25 to prevent the plug plate 25 from moving, and at the same time, the corner block 4531 and the clamping block 4532 are movably supported on the outer end of the bracket 4534 by the elastic action of the third spring 4533, and further hook the upper part of the locking hole 251 to lock and prevent it from detaching;

[0064] Then, the steel wire rope is passed through the upper inner part of the fixing plate 1 313 and the inner part of the cushion block 35, and the lead seal 36 is installed to lock it to prevent the baffle 312 from being moved manually. Finally, the magnetic suction plate 343 on the inner wall of the cover plate 34 is adsorbed and fixed to the outer end of the metal partition frame 332, and the hidden structure is safely protected.

[0065] The electronic electric energy meter frame 1 of the present invention, the mounting plate 11, the sealing slot 12, the positioning slot 120, the movable hole 121, the extension slot 122, the box cover 2, the through hole 120, the meter value display screen 21, the observation window 22, the sealing inner plate 23, the sealing outer plate 24, the plug plate 25, the lock hole 251, the sliding operation mechanism 3, the moving rod 31, the first spring 311, the baffle 312, the fixing plate 1 313, the through hole 2 314, the through slot 315, the sliding block 32, the limiting slot 321, the operating frame 33, the opening slot 331, the metal partition frame 332, the cover plate 34, the pull ring 341, The second fixing plate 342, the magnetic plate 343, the first movable shaft 344, the cushion block 35, the lead seal 36, the locking mechanism 4, the fixing frame 41, the second movable shaft 411, the cushion plate 412, the first connecting plate 42, the movable groove 421, the limiting pulley 43, the third movable shaft 431, the second connecting plate 44, the locking column 45, the second spring 451, the pressure plate 452, the protruding structure 453, the corner block 4531, the clamping block 4532, the third spring 4533, and the bracket 4534 are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be understood by technicians in this field through the technical manual. It is known or obtained through conventional experimental methods that the problem solved by the present invention is that the existing sealing structure of the electric energy meter is relatively simple, easy to be illegally disassembled, easy to be damaged, and cannot effectively prevent the illegal opening of the meter box cover, making illegal operation and electricity theft relatively easy. The present invention combines the above-mentioned components with each other, and arranges a double-layer sealing inner plate and a sealing outer plate around the box cover, and cooperates with the sealing slot and the plug plate of the electronic electric energy meter frame to ensure the overall sealing of the electric energy meter, which is dustproof and waterproof. The locking mechanism further enhances the anti-disassembly performance of the electric energy meter through the cooperation of the lock column, the pressure plate, and the corner block, so that Illegal disassembly becomes more difficult. The design of the second spring and the third spring enables the locking mechanism to maintain good elasticity and locking effect during long-term use. The sliding operating mechanism cooperates with the locking mechanism. Through the design of the moving rod and the sliding block, the box cover can be effectively locked to prevent illegal operation and electricity theft during normal use of the meter, making it more convenient for legitimate staff to operate while maintaining good protection performance. The magnetic plate and metal partition frame arranged on the inside of the operating frame are convenient for hiding the sliding operating mechanism, which is convenient for users to operate during legal maintenance and inspection, and improves maintenance efficiency.

[0066] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0067] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An anti-electricity theft electronic energy meter, comprising an electronic energy meter frame (1), a box cover (2), a sliding operating mechanism (3) and a locking mechanism (4), characterized in that: Mounting plates (11) are welded and distributed on both sides of the electronic energy meter frame (1) near the rear end, a sealing slot (12) is provided around the front of the electronic energy meter frame (1), and a positioning slot (120) is provided in the middle of the upper and lower parts of the sealing slot (12); An electric meter value display screen (21) is electrically connected to the upper front portion of the box cover (2), an observation window (22) is provided at the lower portion of the box cover (2), a sealing outer plate (24) is welded around the inner outer portion of the box cover (2), a sealing inner plate (23) is provided inside the sealing outer plate (24), and the sealing inner plate (23) is welded to the inner wall of the box cover (2), the sealing inner plate (23) is aligned with the sealing slot (12), and plug plates (25) are welded above and below the sealing inner plate (23); The sliding operating mechanism (3) is connected through the middle of the upper and lower parts of the box cover (2); The locking mechanisms (4) are respectively arranged at upper and lower positions near the front end of the electronic energy meter frame (1), and the locking mechanisms (4) pass through the inner upper wall of the electronic energy meter frame (1) and are locked and connected to the plug board (25); The sliding operating mechanism (3) and the locking mechanism (4) are located on the same horizontal plane, and the sliding operating mechanism (3) locks the box cover (2) after slidingly contacting the locking mechanism (4); A movable hole (121) is provided below the inner end of the positioning slot (120), and an extension slot (122) is provided above the inner end of the positioning slot (120), wherein the diameter of the extension slot (122) is greater than the diameter of the movable hole (121); The plug plate (25) is provided with a lock hole (251) near the rear end; The locking mechanism (4) comprises a locking column (45), the locking column (45) penetrates and connects to the movable hole (121) and the locking hole (251) for locking, a pressure plate (452) is welded to the inner end of the locking column (45), and a second spring (451) is welded between the inner side of the movable hole (121) and the pressure plate (452); A protruding structure (453) is welded to the outer end of the lock column (45), the diameter of the protruding structure (453) is smaller than the diameter of the lock column (45), a bracket (4534) is welded to the outer wall of the protruding structure (453), the bracket (4534) is movably connected to the outside of a corner block (4531), a clamping block (4532) is welded above the corner block (4531), a third spring (4533) is welded between the inner side of the corner block (4531) and the protruding structure (453), the upper and lower parts of the clamping block (4532) are both arc-shaped structures, and the outermost end of the clamping block (4532) is located outside the vertical line of the lock column (45); The locking mechanism (4) also includes a fixing frame (41), a connecting plate 1 (42), a limiting pulley (43) and a connecting plate 2 (44). Pads (412) are welded on both sides of the fixing frame (41). The pads (412) are mounted on the inner side wall of the electronic electric energy meter frame (1) by bolts. The fixing frame (41) is of an N-shaped structure and is rotatably connected to a movable shaft 2 (411) at the lower inner side. The rear end of the connecting plate 1 (42) is fixedly arranged on the movable shaft. The connecting plate (44) is fixedly arranged at the rear end of the connecting plate (42), and a movable groove (421) is provided in front of the connecting plate (42). The movable groove (421) is rotatably connected to a movable shaft (431) in front of the movable shaft (421). The limiting pulley (43) is fixedly arranged in the middle of the movable shaft (431), and the connecting plate (44) is located below the locking column (45); The sliding operation mechanism (3) comprises a moving rod (31) and a sliding block (32). A through hole (20) is provided in the middle of the upper and lower parts of the box cover (2). The moving rod (31) penetrates and is connected to the inside of the through hole (20). The sliding block (32) is gradually contracted backward and is welded to the inner end of the moving rod (31). A limiting groove (321) is provided below the sliding block (32). The rear end of the limiting groove (321) is an arc-shaped structure. A first spring (311) is welded between the outer side of the sliding block (32) and the inner side of the through hole (20). A baffle (312) is fixedly provided at the front end of the moving rod (31). The baffle (312) is located in front of the through hole (20). The width of the limiting groove (321) is greater than the thickness of the limiting pulley (43).

2. The anti-electricity theft electronic energy meter according to claim 1, characterized in that: An operating frame (33) is welded to the front outer end of the through hole one (20), an opening slot (331) is provided on the front upper part of the operating frame (33), a movable shaft one (344) is connected to the inside of the opening slot (331) for transverse rotation, a fixing plate two (342) is fixed to the outside of the movable shaft one (344), and a cover plate (34) is fixed to the side of the fixing plate two (342).

3. The anti-electricity theft electronic energy meter according to claim 2 is characterized in that: A pull ring (341) is welded to the outer wall of the cover plate (34), a magnetic attraction plate (343) is fixedly provided on the inner wall of the cover plate (34), and a metal partition frame (332) is fixedly provided on the inner side near the front end of the operating frame (33).

4. The anti-electricity theft electronic energy meter according to claim 3 is characterized in that: A fixing plate 1 (313) is welded to the front end of the baffle (312), a through groove (315) is provided in the middle of the fixing plate 1 (313), a cushion block (35) is welded to the upper inner end of the operating frame (33), a through hole 2 (314) is provided at the upper inner portion of the fixing plate 1 (313) and the cushion block (35), and a lead seal (36) is connected to the through hole 2 (314) through which a steel wire rope is passed.

Images