A single-phase electronic energy meter with anti-electricity theft protection

Abstract

The present invention discloses an anti-electricity theft type single-phase electronic energy meter, which belongs to the technical field of energy meters. The anti-electricity theft type single-phase electronic energy meter comprises an energy meter and a terminal block, wherein a fixed block is fixedly connected to the inner wall of the energy meter, and an anti-electricity theft component is mounted on the outer wall of the fixed block; a protective cover is slidably connected to the outer wall of the limiting column, and a steel ball is slidably connected to the inner wall of the limiting sleeve. The anti-electricity theft type single-phase electronic energy meter passes the limiting column through the surface of the limiting sleeve, so that the steel ball slides inside the limiting sleeve and enters the inside of the groove, and the limiting column is limited, so that the protective cover is installed on the surface of the terminal block to prevent non-staff from easily modifying the terminal block. When the protective cover is violently removed, the connecting sleeve will be concave inward and squeeze the airbag, so that the air in the airbag enters the inside of the separation table, and pushes the insulating plate to separate the first conductive sheet and the second conductive sheet, thereby disconnecting the operation of the energy meter.

Description

Technical Field

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

[0002] During the use of the electric energy meter, the electric energy meter needs to be wired and installed. There is a wiring port at the lower end of the electric energy meter. By connecting the incoming line to the power supply and the outgoing line to the load, the three-phase electric energy meter is connected to the circuit in positive phase sequence. The live wire and the neutral wire need to be connected at their respective positions. The wiring part of the electric energy meter is located on the outside for easy operation. If the wiring part changes the live wire and the neutral wire entering the electric energy meter, the live wire and the neutral wire of the electric energy meter are swapped, and the load is connected between the live wire and the external neutral wire, the wiring method of the electric energy meter is changed to achieve the purpose of stealing electricity and pay less electricity bills.

[0003] The Chinese patent CN113884732A authorized and announced on November 25, 2022 discloses an anti-theft electricity meter based on the Internet of Things, in which an electronic lock and a capsule are set to make the wiring cover difficult to open on the one hand, and to make the original wiring more secure on the other hand, making it difficult for electricity thieves to reconnect the wires, and it is easy to leave traces of theft when reconnecting, which is convenient for the anti-theft personnel of the power supply bureau to discover and take countermeasures. However, when the anti-theft electricity meter based on the Internet of Things is in use, if the wiring cover is destroyed by violent means, the live wire and the neutral wire can be swapped, making it still inconvenient to use. Summary of the invention

[0004] The purpose of the present invention is to provide an anti-electricity theft single-phase electronic energy meter to solve the problem that when the anti-electricity theft energy meter based on the Internet of Things is used, if the wiring cover is destroyed by violent means, the live wire and the neutral wire can be swapped.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an anti-electricity theft single-phase electronic electric energy meter, comprising an electric energy meter and a wiring terminal, a fixing block is fixedly connected to the inner wall of the electric energy meter, a wiring terminal is fixedly connected to the outer wall of the fixing block, a first electric wire is fixedly connected to the surface of the wiring terminal, a second electric wire is fixedly connected to the inside of the electric energy meter, and an anti-electricity theft component is assembled on the outer wall of the fixing block;

[0006] The anti-electricity theft component includes a limit column, which is mounted on the surface of the fixed block, a groove is provided on the outer wall of the limit column, a protective cover is slidably connected to the outer wall of the limit column, a spring is fixedly connected to the inside of the protective cover, a limit sleeve is fixedly connected to the outer wall of the top end of the spring, a steel ball is slidably connected to the inner wall of the limit sleeve, an unlocking component is installed on the outer wall of the limit sleeve, and a power-off component is installed on the outer wall of the protective cover;

[0007] Preferably, the power-off assembly includes a connecting sleeve, which is installed on the surface of the protective cover, an airbag is installed between the connecting sleeve and the protective cover, a valve core is fixedly connected to the surface of the airbag, a through groove is opened on the inner wall of the fixed block, and one end of the through groove is connected to the valve core, a separating platform is fixedly connected to the outer wall of the fixed block, and the separating platform is connected to the other end of the through groove, an insulating plate is slidably connected to the inside of the separating platform, a wiring sleeve is fixedly connected to the outer wall of the fixed block, a first conductive sheet is fixedly connected to the inner wall of the wiring sleeve, a second conductive sheet is connected to the surface of the first conductive sheet, and the second conductive sheet and the second electric wire are connected to each other.

[0008] Preferably, the steel balls are symmetrically arranged in multiple groups around the central axis of the limiting sleeve.

[0009] Preferably, a triangular slide groove for squeezing the steel balls is provided inside the protective cover.

[0010] Preferably, a current sensor is installed on the inner wall of the electric energy meter.

[0011] Preferably, the unlocking assembly includes a connecting block, which is installed on the surface of the limiting sleeve, an extrusion block is slidably connected to the inner wall of the connecting block, a connecting column is slidably connected to the inner wall of the connecting block, a limiting block is slidably connected to the inner wall of the connecting column, a pressing block is slidably connected to the inner wall of the connecting column, and a connecting plate is fixedly connected to the outer wall of one end of the connecting column.

[0012] Preferably, the connecting columns are provided in multiple groups on the connecting plate, and the connecting plate is a U-shaped structure.

[0013] Preferably, the connecting sleeve is made of plastic.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the anti-electricity theft type single-phase electronic electricity meter passes one end of the limit column through the surface of the limit sleeve, so that the steel ball slides inside the limit sleeve and enters the inside of the groove, and limits the limit column, so that the protective cover is installed on the surface of the terminal block, preventing non-staff from easily changing the terminal block. When the protective cover is violently removed, the connecting sleeve will be concave inward and squeeze the airbag, so that the air in the airbag enters the interior of the separation table, and pushes the insulating plate to separate the first conductive sheet and the second conductive sheet, disconnecting the operation of the electricity meter. When the staff needs to remove the protective cover, first pass one end of the connecting column through the surface of the connecting block, and then press the block to push the limit block to slide out of the interior of the connecting column and buckle the surface of the connecting block. Pulling the connecting plate can release the limit on the limit column, thereby improving the overall usability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of the side appearance structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the electric energy meter and the fixing block cooperating with each other in the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the limit column and the protective cover cooperating with each other in the present invention;

[0018] Figure 4 This is a schematic diagram of the use of the unlocking assembly of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the connection column and the connection plate cooperating with each other in the present invention;

[0020] Figure 6 This is a schematic diagram of the structure of the pressing block and the connecting plate cooperating with each other in the present invention;

[0021] Figure 7 This is a schematic diagram of the structure of the connection sleeve and the airbag cooperating with each other in the present invention;

[0022] Figure 8 It is a schematic diagram of the structure of the air bag and the valve core cooperating with each other in the present invention;

[0023] Fig. 9 This is a schematic diagram of the structure of the separation platform and the insulation plate cooperating with each other in the present invention;

[0024] Fig.10 This is a schematic diagram of the structure in which the second conductive sheet and the second electric wire cooperate with each other according to the present invention;

[0025] Fig.11 For the present invention Figure 3 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1. Electric energy meter; 2. Fixing block; 3. Wiring terminal; 4. First electric wire; 5. Second electric wire; 6. Anti-electricity theft component; 601. Limiting column; 602. Groove; 603. Protective cover; 604. Spring; 605. Limiting sleeve; 606. Steel ball; 7. Unlocking component; 701. Connecting block; 702. Extrusion block; 703. Connecting column; 704. Limiting block; 705. Pressing block; 706. Connecting plate; 8. Power-off component; 801. Connecting sleeve; 802. Air bag; 803. Valve core; 804. Through groove; 805. Separation table; 806. Insulating plate; 807 Wiring sleeve; 808. First conductive sheet; 809. Second conductive sheet; 9. Current sensor. DETAILED DESCRIPTION

[0027] 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.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "center", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0030] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Example

[0033] See also Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 and Fig.11 The present invention provides a technical solution: an anti-electricity theft single-phase electronic energy meter, comprising an energy meter 1 and a wiring terminal 3, a fixing block 2 is fixedly connected to the inner wall of the energy meter 1, the wiring terminal 3 is fixedly connected to the outer wall of the fixing block 2, a first wire 4 is fixedly connected to the surface of the wiring terminal 3, a second wire 5 is fixedly connected to the inside of the energy meter 1, and an anti-electricity theft component 6 is assembled on the outer wall of the fixing block 2;

[0034] The anti-electricity theft component 6 includes a limit column 601, which is installed on the surface of the fixed block 2. A groove 602 is opened on the outer wall of the limit column 601. A protective cover 603 is slidably connected to the outer wall of the limit column 601. A spring 604 is fixedly connected to the inside of the protective cover 603. A limit sleeve 605 is fixedly connected to the outer wall of the top end of the spring 604. A steel ball 606 is slidably connected to the inner wall of the limit sleeve 605. An unlocking component 7 is installed on the outer wall of the limit sleeve 605, and a power-off component 8 is installed on the outer wall of the protective cover 603.

[0035] When in use, before connecting the first wire 4, first pass the first wire 4 through the inside of the protective cover 603, and then connect it to the terminal 3, and then connect the protective cover 603 to the limiting column 601, so that the limiting column 601 slides inside the protective cover 603 and enters the inside of the limiting sleeve 605. After the limiting column 601 enters the inside of the limiting sleeve 605, it will press against the surface of the steel ball 606, and continue to push the protective cover 603 upward, so that one end of the limiting column 601 pushes the steel ball 606 and the limiting sleeve 605 to slide inside the protective cover 603 and squeeze the spring 604. When the limiting sleeve 605 slides downward, the limiting column 601 squeezes the steel ball 606 , so that the steel ball 606 will slide outward inside the limiting sleeve 605, so that one end of the limiting column 601 can pass through the inside of the limiting sleeve 605. When the surface of the protective cover 603 fits the surface of the fixed block 2, the spring 604 is forced to push the limiting sleeve 605 to move upward. At the same time, the triangular slide groove inside the protective cover 603 squeezes and pushes the steel ball 606 to slide inside the limiting sleeve 605 and enter the inside of the groove 602, and limits the limiting column 601, so that the protective cover 603 is installed on the surface of the terminal block 3, preventing non-staff from easily modifying the terminal block 3, thereby improving the overall usability of the device.

[0036] See also Figure 1 , Figure 2 , Figure 4 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown in the figure, the power-off component 8 includes a connecting sleeve 801, which is installed on the surface of the protective cover 603, an air bag 802 is installed between the connecting sleeve 801 and the protective cover 603, a valve core 803 is fixedly connected to the surface of the air bag 802, a through groove 804 is opened on the inner wall of the fixed block 2, and one end of the through groove 804 is connected to the valve core 803, a separation platform 805 is fixedly connected to the outer wall of the fixed block 2, and the separation platform 805 is connected to the other end of the through groove 804, an insulating plate 806 is slidably connected inside the separation platform 805, a wiring sleeve 807 is fixedly connected to the outer wall of the fixed block 2, a first conductive sheet 808 is fixedly connected to the inner wall of the wiring sleeve 807, a second conductive sheet 809 is connected to the surface of the first conductive sheet 808, and the second conductive sheet 809 is connected to the second electric wire 5.

[0037] During use, when the protective cover 603 is violently removed, it is necessary to apply a huge force to the surface of the connecting sleeve 801. At this time, the surface of the connecting sleeve 801 will be concave inward and squeeze the airbag 802. After the airbag 802 is squeezed, the air inside will be discharged outward through the valve core 803 and enter the interior of the separation platform 805 through the through groove 804, and push the insulating plate 806 inside the separation platform 805 to slide outward, so that the insulating plate 806 squeezes the gap between the first conductive sheet 808 and the second conductive sheet 809, thereby separating the first conductive sheet 808 and the second conductive sheet 809, and the electric energy meter 1 can be powered off and stopped, thereby improving the overall usability of the device.

[0038] See also Fig.11 As shown in the figure, multiple groups of steel balls 606 are symmetrically arranged around the central axis of the limiting sleeve 605.

[0039] When in use, the limiting column 601 is squeezed from all sides of the groove 602 by multiple groups of steel balls 606, which can ensure the uniformity of the force on the surface of the limiting column 601, improve its stability, and improve the overall usability of the device.

[0040] See also Fig.11 As shown in the figure, a triangular slide groove for squeezing the steel ball 606 is opened inside the protective cover 603.

[0041] When in use, the triangular slide groove is narrow at the top and wide at the bottom, so that the triangular slide groove can squeeze the surface of the steel ball 606 in the initial state of the limiting sleeve 605, and the limiting sleeve 605 will release the limit on the steel ball 606 when it descends, thereby improving the overall usability of the device.

[0042] See also Figure 2 As shown in the figure, a current sensor 9 is installed on the inner wall of the electric energy meter 1.

[0043] When in use, when non-staff steal electricity, the current sensor 9 will sense the current and transmit the information to the staff, so that the staff can process it and make corresponding alarms, thereby improving the overall usability of the device.

[0044] See also Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown in the figure, the unlocking component 7 includes a connecting block 701, which is installed on the surface of the limiting sleeve 605. An extrusion block 702 is slidably connected to the inner wall of the connecting block 701, a connecting column 703 is slidably connected to the inner wall of the connecting block 701, a limiting block 704 is slidably connected to the inner wall of the connecting column 703, a pressing block 705 is slidably connected to the inner wall of the connecting column 703, and a connecting plate 706 is fixedly connected to the outer wall of one end of the connecting column 703.

[0045] When in use, when the staff needs to remove the protective cover 603, first insert the connecting column 703 into the interior of the protective cover 603, so that one end of the connecting column 703 passes through the surface of the connecting block 701, and then continue to push the connecting column 703 to slide inside the protective cover 603, so that the inner wall of the protective cover 603 squeezes and pushes the pressing block 705 to slide downward inside the connecting column 703, so that one end of the pressing block 705 squeezes the surface of the limiting block 704, thereby pushing one end of the limiting block 704 to slide out of the interior of the connecting column 703 and buckle the surface of the connecting block 701, and then pull the connecting plate 706 to drive the connecting column 703 and the limiting block 704 to move. The connecting block 701 slides downward, and when the connecting block 701 slides downward, it will pull the limiting sleeve 605 to slide downward synchronously, thereby releasing the limit on the limiting column 601 and separating the protective cover 603 from the fixed block 2. Then, the pressing block 705 continues to be pulled to push the connecting block 701 to slide inside the protective cover 603, so that the inner wall of the protective cover 603 squeezes the extrusion block 702 to slide upward on the surface of the connecting block 701, and squeezes the front end of the limiting block 704 through the arc surface at the top of the extrusion block 702, thereby pushing the limiting block 704 into the interior of the connecting column 703, so that the pressing block 705 can be pulled out of the interior of the connecting block 701, thereby improving the overall usability of the device.

[0046] See also Figure 5 As shown in the figure, multiple groups of connecting columns 703 are arranged on the connecting plate 706, and the connecting plate 706 is a U-shaped structure.

[0047] During use, when inserting the connecting column 703, the first wire 4 is placed in the U-shaped groove on the surface of the connecting plate 706, so that the first wire 4 will not affect the connection between the connecting column 703 and the protective cover 603. The setting of multiple groups of connecting columns 703 makes it necessary to simultaneously release the limit of multiple groups of limit columns 601 and limit sleeves 605 when removing the protective cover 603 in order to separate the protective cover 603 from the fixed block 2, which increases the difficulty for non-staff to remove the protective cover 603 and improves the overall usability of the device.

[0048] See also Figure 3 and Figure 7 As shown in the figure, the connecting sleeve 801 is made of plastic material.

[0049] When used, plastic has the characteristics of high strength and light weight, and moderate toughness.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-electricity theft type single-phase electronic energy meter, comprising an energy meter (1) and a connection terminal (3), characterized in that: The inner wall of the electric energy meter (1) is fixedly connected to a fixing block (2), the outer wall of the fixing block (2) is fixedly connected to a wiring terminal (3), the surface of the wiring terminal (3) is fixedly connected to a first electric wire (4), the interior of the electric energy meter (1) is fixedly connected to a second electric wire (5), and the outer wall of the fixing block (2) is equipped with an anti-electricity theft component (6); The anti-electricity theft component (6) comprises a limit column (601), the limit column (601) is mounted on the surface of the fixed block (2), a groove (602) is provided on the outer wall of the limit column (601), a protective cover (603) is slidably connected to the outer wall of the limit column (601), a spring (604) is fixedly connected inside the protective cover (603), a limit sleeve (605) is fixedly connected to the outer wall of the top end of the spring (604), a steel ball (606) is slidably connected to the inner wall of the limit sleeve (605), an unlocking component (7) is mounted on the outer wall of the limit sleeve (605), and a power-off component (8) is mounted on the outer wall of the protective cover (603); The power-off assembly (8) comprises a connecting sleeve (801), the connecting sleeve (801) being mounted on the surface of the protective cover (603), an air bag (802) being mounted between the connecting sleeve (801) and the protective cover (603), a valve core (803) being fixedly connected to the surface of the air bag (802), a through groove (804) being formed on the inner wall of the fixing block (2), one end of the through groove (804) being connected to the valve core (803), and a through groove (804) being fixedly connected to the outer wall of the fixing block (2). A separation table (805) is provided, and the separation table (805) is connected to the other end of the through slot (804); an insulating plate (806) is slidably connected inside the separation table (805); a wiring sleeve (807) is fixedly connected to the outer wall of the fixed block (2); a first conductive sheet (808) is fixedly connected to the inner wall of the wiring sleeve (807); a second conductive sheet (809) is connected to the surface of the first conductive sheet (808); and the second conductive sheet (809) and the second electric wire (5) are connected to each other.

2. The anti-electricity theft single-phase electronic energy meter according to claim 1 is characterized in that: The steel balls (606) are symmetrically arranged in multiple groups around the central axis of the limiting sleeve (605).

3. The anti-electricity theft single-phase electronic energy meter according to claim 1 is characterized in that: A triangular sliding groove for squeezing the steel ball (606) is provided inside the protective cover (603).

4. The anti-electricity theft single-phase electronic energy meter according to claim 1 is characterized in that: A current sensor (9) is installed on the inner wall of the electric energy meter (1).

5. The anti-electricity theft single-phase electronic energy meter according to claim 1 is characterized in that: The unlocking assembly (7) comprises a connecting block (701), the connecting block (701) being mounted on the surface of the limiting sleeve (605), a squeezing block (702) being slidably connected to the inner wall of the connecting block (701), a connecting column (703) being slidably connected to the inner wall of the connecting block (701), a limiting block (704) being slidably connected to the inner wall of the connecting column (703), a pressing block (705) being slidably connected to the inner wall of the connecting column (703), and a connecting plate (706) being fixedly connected to the outer wall of one end of the connecting column (703).

6. The anti-electricity-theft single-phase electronic energy meter according to claim 5 is characterized in that: The connection columns (703) are arranged in multiple groups on the connection plate (706), and the connection plate (706) is a U-shaped structure.

7. The anti-electricity theft single-phase electronic energy meter according to claim 1 is characterized in that: The connecting sleeve (801) is made of plastic material.

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