An electric energy meter capable of preventing electricity theft

Abstract

The present invention provides an anti-theft electric energy meter, which relates to the technical field of electric energy meters. The anti-theft electric energy meter includes an electric energy meter housing, a wiring slot, a wiring cover, a guide rail, an adjustment mechanism, an elastic mechanism, a second screw, a third screw, and an alarm. Multiple guide rails are distributed in the wiring slot and are used to support the corresponding adjustment mechanism and elastic mechanism. The adjustment mechanism is used to lock the elastic mechanism in a first state or a second state. The wiring cover is provided with multiple sets of second screws and third screws. The second screw drives the elastic mechanism in the corresponding first state to move back and forth, which is used to connect or disconnect the alarm circuit. The third screw drives the elastic mechanism in the corresponding second state to move back and forth, which is used to disassemble and assemble the wiring cover. Neither the second screw nor the third screw can be unscrewed from the wiring cover. In the present invention, staff can freely set the wiring cover disassembly control point, which is equivalent to a dynamic password. The thief cannot know in advance. An unlocking error will trigger an alarm, reducing the risk of the electric energy meter being stolen.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meters, and in particular to an electric energy meter capable of preventing electricity theft. Background Art

[0002] The power consumption, voltage, current and other information collected by the electricity meter are directly exchanged through the Internet of Things. It is simple and convenient to use. It not only saves the cost of wiring and supporting concentrators, but also improves data security and reliability.

[0003] In the existing technology, electricity meters are mainly equipped with lead seals on the shell to prevent electricity theft. However, in reality, electricity thieves first use various means to open the lead seals, then open the wiring cover, and then rewire the wiring terminals in the wiring slot to achieve the purpose of stealing electricity. Afterwards, the lead seals are restored, making it difficult for anti-theft personnel of the power supply bureau to detect the theft. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an electric energy meter that prevents electricity theft.

[0005] The present invention provides an anti-electricity theft electric energy meter, including an electric energy meter housing, a wiring slot, a wiring cover, a guide rail, an adjustment mechanism, an elastic mechanism, a second screw, a third screw and an alarm. The wiring slot is opened on the lower side of the front end of the electric energy meter housing, and the wiring cover is arranged at the front end of the wiring slot. A plurality of guide rails are evenly distributed on the inner side of the wiring slot, and are used to support the corresponding adjustment mechanism and elastic mechanism. The adjustment mechanism is used to lock the elastic mechanism in the first state or the second state. Multiple groups of second screws and third screws are arranged on the wiring cover. The second screw drives the corresponding elastic mechanism in the first state to move back and forth, and is used to connect or disconnect the alarm circuit. The third screw drives the corresponding elastic mechanism in the second state to move back and forth, and is used for disassembling and assembling the wiring cover. The second screw and the third screw cannot be screwed out of the wiring cover individually.

[0006] Optionally, the adjustment mechanism includes a first T-shaped block, a slider, a side plate, a first screw, a first positioning hole and a second positioning hole, the first T-shaped block is slidably connected to the inner surface of the guide rail, the bottom end of the guide rail is fixed to the inner bottom surface of the wiring groove, the bottom end of the slider is fixed to the upper end of the first T-shaped block, the end of the side plate is fixed to the upper end of the side of the slider, the first screw is connected to the internal thread of the side plate, the first positioning hole and the second positioning hole are spaced apart on the upper end surface of the guide rail, and the first positioning hole and the second positioning hole are both threadedly connected to the first screw.

[0007] Optionally, the elastic mechanism includes a second T-block, a ramp block, a moving rod and a spring, the second T-block is slidably connected to the inner surface of the guide rail, the bottom end of the ramp block is fixed to the upper end of the second T-block, the outer side of the end of the moving rod is fixed inside the ramp block, the outer side of the moving rod is slidably connected to the inside of the slider, the spring is sleeved on the outer side of the moving rod, and the two ends of the spring are respectively fastened to the side of the slider and the side of the ramp block.

[0008] Optionally, a plurality of evenly distributed first circular holes are provided on the outer surface of the wiring cover, a through first threaded hole is provided on the inner bottom surface of the first circular hole, the second screw rod portion is threadedly connected to the inner side of the first threaded hole, the second screw head is located inside the first circular hole and matches the size, and a first drive block is fixed to the end of the second screw rod portion away from the head.

[0009] Optionally, the outer surface of the wiring cover is further provided with a plurality of evenly distributed second circular holes, the inner bottom surface of the second circular hole is provided with a through second threaded hole, the third screw rod portion is threadedly connected to the inner side of the second threaded hole, the third screw head is located inside the second circular hole and the size is matched, and a second drive block is fixed to the end of the third screw rod portion away from the head.

[0010] Optionally, a wiring terminal is fixed in the wiring slot, a groove is opened in the middle of the upper end of the wiring terminal, the alarm is fixed in the groove, and a conductive sheet is fixed on the upper end surface of the guide rail close to the wiring terminal. The conductive sheet, the alarm and the moving rod are electrically connected to each other through a wire.

[0011] Optionally, a connecting plate is fixedly provided at the rear end edge of the wiring cover, and a plurality of evenly distributed jacks are opened on the inner side surface of the connecting plate.

[0012] Optionally, slots are symmetrically provided on both sides of the front end of the wiring slot, and plug-in blocks are symmetrically fixed on both sides of the rear end of the wiring cover, and the plug-in blocks and the slots are engaged with each other and have matching sizes.

[0013] Optionally, the wiring cover and the connecting plate are both made of opaque material, and lead seals are provided in the first circular hole and the second circular hole.

[0014] The beneficial effects of the electricity meter with anti-electricity theft of the present invention are as follows: when the electricity thief unscrews the second screw in the first state, the elastic mechanism is driven to move in the opposite direction and connects the alarm circuit. At this time, the alarm is energized and an alarm sounds, and the electricity thief stops stealing electricity; the electricity thief cannot unscrew the second screw in the second state and the third screw in the first state, which increases the workload of the electricity thief. At the same time, the electricity thief may think that the screw cannot be unscrewed and the wiring cover cannot be removed due to slippage or internal rust, and thus gives up stealing electricity; any set of elastic mechanisms can be switched to the second state, so the staff can freely set the wiring cover disassembly control point, which is equivalent to a dynamic password. The electricity thief cannot know it in advance, thereby reducing the risk of the electricity meter being stolen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an electric energy meter for preventing electricity theft according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure of an electric energy meter for preventing electricity theft according to an embodiment of the present invention;

[0017] Figure 3 A schematic diagram of the internal structure of the wiring slot in an anti-electricity theft electric energy meter according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the inner portion and upper end portion of the guide rail in an anti-electricity theft electric energy meter according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the second screw in the electric energy meter for preventing electricity theft according to an embodiment of the present invention;

[0020] Figure 6 This is a schematic structural diagram of a wiring cover in an electric energy meter for preventing electricity theft according to an embodiment of the present invention;

[0021] Figure 7 for Figure 2 A magnified view of the structure at point A;

[0022] Figure 8 for Figure 3 A magnified view of the structure at point B in FIG.

[0023] Explanation of the accompanying drawings: 101, electricity meter housing; 102, wiring slot; 103, wiring terminal; 104, wiring cover; 105, plug block; 106, slot; 107, connecting plate; 2, guide rail; 301, first T-block; 302, slider; 303, side plate; 304, first screw; 305, first positioning hole; 306, second positioning hole; 401, second T-block; 402, inclined block; 403, moving rod; 404, spring; 5, conductive sheet; 6, alarm; 7, jack; 801, first circular hole; 802, first threaded hole; 803, second screw; 804, first drive block; 901, second circular hole; 902, second threaded hole; 903, third screw; 904, second drive block. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0026] Throughout this specification, reference to terms such as "an embodiment," "one embodiment," "some embodiments," "exemplarily," and "one embodiment" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or embodiment are included in at least one embodiment or embodiment of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or embodiment. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or embodiments.

[0027] The terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of the features.

[0028] like Figure 1-8As shown, an embodiment of the present invention provides an anti-electricity theft electric energy meter, including an electric energy meter housing 101, a wiring slot 102, a wiring cover 104, a guide rail 2, an adjustment mechanism, an elastic mechanism, a second screw 803, a third screw 903 and an alarm 6. The wiring slot 102 is opened on the lower side of the front end of the electric energy meter housing 101, and the wiring cover 104 is arranged at the front end of the wiring slot 102. A plurality of guide rails 2 are evenly distributed inside the wiring slot 102, and are used to support the corresponding adjustment mechanism and elastic mechanism. The adjustment mechanism is used to lock the elastic mechanism in a first state or a second state. A plurality of groups of second screws 803 and third screws 903 are provided on the wiring cover 104. The second screw 803 drives the corresponding elastic mechanism in the first state to reciprocate, and is used to connect or disconnect the alarm 6 circuit. The third screw 903 drives the corresponding elastic mechanism in the second state to reciprocate, and is used to disassemble and assemble the wiring cover 104. The second screw 803 and the third screw 903 cannot be screwed out of the wiring cover 104 separately.

[0029] In this embodiment, each set of second screws 803 and third screws 903 on the wiring cover 104 corresponds to the adjustment mechanism and elastic mechanism on each set of guide rails 2. When in use, one set of elastic mechanisms is locked in the second state by the adjustment mechanism, and the remaining sets of elastic mechanisms are locked in the first state. Then, the wiring cover 104 is closed on the front end of the wiring slot 102, and then the second screws 803 are used to drive each set of elastic mechanisms in the first state to move unidirectionally and disconnect the alarm 6 circuit. Then, the third screw 903 is used to drive the elastic mechanism in the second state to move unidirectionally and fix the wiring cover 104 at the front end of the wiring slot 102. At this time, each set of second screws 803 and third screws 903 are tightened in the wiring cover 104. If an electricity thief changes the power line, the wiring cover 104 needs to be opened first. Since there are multiple sets of second screws 803 and third screws 903 on the wiring cover 104, the electricity thief will try to adjust each set of The second screw 803 and the third screw 903 are unscrewed outward, but only one set of the third screws 903 is unlocked. Therefore, when the electricity thief unscrews the second screw 803 in the first state, the elastic mechanism is driven to move in the opposite direction and connect the alarm 6 circuit. At this time, the alarm 6 is energized and an alarm sounds, and the electricity thief stops stealing electricity. Since the second screw 803 and the third screw 903 cannot be unscrewed out of the wiring cover 104 separately, the electricity thief cannot unscrew the second screw 803 in the second state and the third screw 903 in the first state, which increases the workload of the electricity thief. At the same time, the electricity thief may think that the wiring cover 104 cannot be unscrewed due to thread slippage or internal rust, and thus give up stealing electricity. Here, any set of elastic mechanisms can be switched to the second state, so the staff can freely set the control point for disassembly and assembly of the wiring cover 104, which is equivalent to a dynamic password. The electricity thief cannot know it in advance, reducing the risk of electricity theft by the electricity meter.

[0030] like Figure 3 、 Figure 4 and Figure 8 As shown, optionally, the adjustment mechanism includes a first T-block 301, a slider 302, a side plate 303, a first screw 304, a first positioning hole 305 and a second positioning hole 306, the first T-block 301 is slidably connected to the inner surface of the guide rail 2, the bottom end of the guide rail 2 is fixed to the inner bottom surface of the wiring groove 102, the bottom end of the slider 302 is fixed to the upper end of the first T-block 301, the end of the side plate 303 is fixed to the upper end of the side of the slider 302, the first screw 304 is threadedly connected to the internal of the side plate 303, the first positioning hole 305 and the second positioning hole 306 are spaced apart on the upper end surface of the guide rail 2, and the first positioning hole 305 and the second positioning hole 306 are both threadedly connected to the first screw 304.

[0031] In this embodiment, the first T-block 301 slides in the guide rail 2, driving the slider 302, the side plate 303 and the first screw 304 to slide synchronously, so that the position of the first screw 304 can be adjusted. When the first screw 304 is rotated and tightened in the first positioning hole 305, the elastic mechanism is locked in the first state; when the first screw 304 is rotated and tightened in the second positioning hole 306, the elastic mechanism is locked in the second state.

[0032] like Figure 3 、 Figure 4 and Figure 8 As shown, optionally, the elastic mechanism includes a second T-block 401, a ramp block 402, a moving rod 403 and a spring 404, the second T-block 401 is slidably connected to the inner surface of the guide rail 2, the bottom end of the ramp block 402 is fixed to the upper end of the second T-block 401, the outer end of the moving rod 403 is fixed inside the ramp block 402, the outer side of the moving rod 403 is slidably connected to the inside of the slider 302, the spring 404 is sleeved on the outer side of the moving rod 403, and the two ends of the spring 404 are respectively fastened to the side of the slider 302 and the side of the ramp block 402.

[0033] In this embodiment, since the two ends of the spring 404 are tightly connected to the slider 302 and the inclined plane block 402, when the slider 302 moves, the inclined plane block 402 is driven to move synchronously. When the position of the slider 302 is switched and fixed, the inclined plane block 402 is locked in the first state or the second state. Here, when the position of the slider 302 is fixed, the inclined plane block 402 can move back and forth relative to the slider 302.

[0034] like Figure 1 、 Figure 2 、 Figure 5 and Figure 7As shown, optionally, a plurality of evenly distributed first circular holes 801 are provided on the outer surface of the wiring cover 104, a through first threaded hole 802 is provided on the inner bottom surface of the first circular hole 801, the screw portion of the second screw 803 is threadedly connected to the inner side of the first threaded hole 802, the head of the second screw 803 is located inside the first circular hole 801 and the size matches, and a first driving block 804 is fixed to the end of the screw portion of the second screw 803 away from the head.

[0035] In this embodiment, when the inclined plane block 402 is locked in the first state, the head of the second screw 803 is rotated by a tool, driving the screw portion of the second screw 803 to rotate and move linearly, driving the first drive block 804 to move synchronously. When the outer side of the first drive block 804 squeezes the inclined surface of the inclined plane block 402, the inclined plane block 402 is squeezed and moves toward the slider 302. At this time, the spring 404 is compressed and the alarm 6 circuit is disconnected; when the second screw 803 rotates in the opposite direction and screwed out, the first drive block 804 leaves the inclined plane block 402. At this time, the inclined plane block 402 moves in the opposite direction and connects the alarm 6 circuit under the push of the spring 404 to recover its deformation. Here, the structural design of the first drive block 804 also prevents the second screw 803 from being screwed out of the first circular hole 801.

[0036] like Figure 1 、 Figure 2 、 Figure 5 and Figure 7 As shown, optionally, a plurality of evenly distributed second circular holes 901 are provided on the outer surface of the wiring cover 104, a through second threaded hole 902 is provided on the inner bottom surface of the second circular hole 901, the screw portion of the third screw 903 is threadedly connected to the inner side of the second threaded hole 902, the head of the third screw 903 is located inside the second circular hole 901 and the size matches, and a second drive block 904 is fixed to the end of the screw portion of the third screw 903 away from the head.

[0037] In this embodiment, when the inclined plane block 402 is locked in the second state, the head of the third screw 903 is rotated by a tool, driving the screw portion of the third screw 903 to rotate and move linearly, driving the second driving block 904 to move synchronously. When the outer side of the second driving block 904 squeezes the inclined surface of the inclined plane block 402, the inclined plane block 402 is squeezed and moves toward the slider 302. At this time, the spring 404 is compressed, the wiring cover 104 is fixedly installed, and the wiring groove 102 is closed; when the third screw 903 rotates in the opposite direction and screwed out, the second driving block 904 leaves the inclined plane block 402. At this time, the inclined plane block 402 moves in the opposite direction and opens the wiring cover 104 under the push of the spring 404 to recover its deformation. Here, the structural design of the second driving block 904 also prevents the third screw 903 from being screwed out of the second circular hole 901.

[0038] like Figure 3 、 Figure 7 and Figure 8As shown, optionally, a wiring terminal 103 is fixed in the wiring slot 102, a groove is opened in the middle of the upper end of the wiring terminal 103, the alarm 6 is fixed in the groove, and a conductive sheet 5 is fixed on the upper end surface of the guide rail 2 close to the side of the wiring terminal 103, and the conductive sheet 5, the alarm 6 and the moving rod 403 are electrically connected to each other through a wire.

[0039] In this embodiment, the moving rod 403 is a conductor, and multiple moving rods 403 are connected in parallel to each other and form a loop circuit with the conductive sheet 5 and the alarm 6. When the end of a single moving rod 403 moves to contact the corresponding conductive sheet 5, a loop can be formed and the alarm 6 can be triggered. Since it is a simple circuit control technology and is very mature, it will not be elaborated here.

[0040] like Figure 6 and Figure 7 As shown, optionally, a connection plate 107 is fixedly provided at the rear end edge of the wiring cover 104 , and a plurality of evenly distributed jacks 7 are provided on the inner side surface of the connection plate 107 .

[0041] In this embodiment, when the inclined plane block 402 is in the second state, the inclined plane block 402 is squeezed to drive the moving rod 403 to move, and the moving rod 403 is inserted into the socket 7. At this time, the wiring cover 104 is fixedly installed. When the inclined plane block 402 moves in the opposite direction, it drives the moving rod 403 to leave the socket 7, and the wiring cover 104 is opened.

[0042] like Figure 1 、 Figure 3 and Figure 6 As shown, optionally, slots 106 are symmetrically provided on both sides of the front end of the wiring slot 102, and plug-in blocks 105 are symmetrically fixed on both sides of the rear end of the wiring cover 104. The plug-in blocks 105 and the slots 106 are engaged with each other and have matching sizes.

[0043] In this embodiment, the wiring cover 104 is initially fixed to the front end of the wiring slot 102 by inserting the inserting block 105 into the slot 106 , so as to facilitate further fastening later.

[0044] like Figure 1 As shown, optionally, the wiring cover 104 and the connecting plate 107 are both made of opaque materials, and lead seals are provided in the first circular hole 801 and the second circular hole 901 .

[0045] In this embodiment, the wiring cover 104 and the connecting plate 107 are made of opaque materials, which can prevent electricity thieves from finding the disassembly and assembly control points directly by observation. By providing lead seals in the first circular hole 801 and the second circular hole 901, the electricity thief leaves traces of the theft, which is convenient for the anti-theft personnel of the power supply bureau to find and perform repairs and take further measures.

[0046] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. An anti-electricity theft electric energy meter, characterized in that: The utility model comprises an electric energy meter housing (101), a wiring slot (102), a wiring cover (104), a guide rail (2), an adjustment mechanism, an elastic mechanism, a second screw (803), a third screw (903) and an alarm (6), wherein the wiring slot (102) is provided at the lower side of the front end of the electric energy meter housing (101), the wiring cover (104) is provided at the front end of the wiring slot (102), a plurality of guide rails (2) are evenly distributed inside the wiring slot (102) and are used to support the corresponding adjustment mechanism and the elastic mechanism, and the adjustment mechanism is used to adjust the elastic mechanism Locked in a first state or a second state, a plurality of sets of second screws (803) and third screws (903) are provided on the wiring cover (104), the second screws (803) drive the corresponding elastic mechanism in the first state to move back and forth, and are used to connect or disconnect the alarm (6) circuit, and the third screws (903) drive the corresponding elastic mechanism in the second state to move back and forth, and are used to disassemble and assemble the wiring cover (104), and the second screws (803) and the third screws (903) cannot be screwed out of the wiring cover (104) alone; The adjustment mechanism comprises a first T-shaped block (301), a slider (302), a side plate (303), a first screw (304), a first positioning hole (305) and a second positioning hole (306), wherein the first T-shaped block (301) is slidably connected to the inner surface of the guide rail (2), the bottom end of the guide rail (2) is fixed on the inner bottom surface of the wiring slot (102), the bottom end of the slider (302) is fixed on the upper end of the first T-shaped block (301), the end of the side plate (303) is fixed on the upper end of the side of the slider (302), the first screw (304) is internally threadedly connected to the side plate (303), the first positioning hole (305) and the second positioning hole (306) are spaced apart and arranged on the upper end surface of the guide rail (2), and the first positioning hole (305) and the second positioning hole (306) are respectively threadedly connected to the first screw (304); The elastic mechanism comprises a second T-shaped block (401), an inclined surface block (402), a moving rod (403) and a spring (404); the second T-shaped block (401) is slidably connected to the inner surface of the guide rail (2); the bottom end of the inclined surface block (402) is fixed to the upper end of the second T-shaped block (401); the outer end of the moving rod (403) is fixed to the inside of the inclined surface block (402); the outer side of the moving rod (403) is slidably connected to the inside of the slider (302); the spring (404) is sleeved on the outer side of the moving rod (403); and the two ends of the spring (404) are respectively fastened to the side of the slider (302) and the side of the inclined surface block (402).

2. The anti-electricity-theft electric energy meter according to claim 1, characterized in that: The outer surface of the wiring cover (104) is provided with a plurality of evenly distributed first circular holes (801); the inner bottom surface of the first circular hole (801) is provided with a through first threaded hole (802); the screw portion of the second screw (803) is threadedly connected to the inner side of the first threaded hole (802); the head of the second screw (803) is located inside the first circular hole (801) and has a matching size; and a first driving block (804) is fixed to the end of the screw portion of the second screw (803) away from the head.

3. The anti-electricity-theft electric energy meter according to claim 2, characterized in that: The outer surface of the wiring cover (104) is further provided with a plurality of evenly distributed second circular holes (901); the inner bottom surface of the second circular hole (901) is provided with a through second threaded hole (902); the screw portion of the third screw (903) is threadedly connected to the inner side of the second threaded hole (902); the head of the third screw (903) is located inside the second circular hole (901) and the size matches; a second driving block (904) is fixedly provided at one end of the screw portion of the third screw (903) away from the head; and lead seals are provided in both the first circular hole (801) and the second circular hole (901).

4. The anti-electricity-theft electric energy meter according to claim 1, characterized in that: A wiring terminal (103) is also fixedly provided in the wiring slot (102), a groove is provided in the middle of the upper end of the wiring terminal (103), and the alarm (6) is fixedly provided in the groove. A conductive sheet (5) is fixedly provided on the upper end surface of the guide rail (2) near the wiring terminal (103), and the conductive sheet (5), the alarm (6) and the moving rod (403) are electrically connected to each other through a wire.

5. The anti-electricity-theft electric energy meter according to claim 1, characterized in that: A connecting plate (107) is fixedly provided at the rear end edge of the wiring cover (104), and a plurality of evenly distributed jacks (7) are provided on the inner side surface of the connecting plate (107).

6. The anti-electricity-theft electric energy meter according to claim 1, characterized in that: Slots (106) are symmetrically provided on both sides of the front end of the wiring slot (102), and plug blocks (105) are symmetrically fixed on both sides of the rear end of the wiring cover (104). The plug blocks (105) and the slots (106) are mutually engaged and have matching sizes.

7. The anti-electricity-theft electric energy meter according to claim 5, characterized in that: The wiring cover (104) and the connecting plate (107) are both made of opaque materials.

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