CN112014610B - Anti-electricity-stealing device applied to ammeter - Google Patents

Anti-electricity-stealing device applied to ammeter Download PDF

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Publication number
CN112014610B
CN112014610B CN202010870499.7A CN202010870499A CN112014610B CN 112014610 B CN112014610 B CN 112014610B CN 202010870499 A CN202010870499 A CN 202010870499A CN 112014610 B CN112014610 B CN 112014610B
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China
Prior art keywords
electricity
contact
sliding block
section
meter
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CN202010870499.7A
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CN112014610A (en
Inventor
陈代威
林国光
罗元发
曾晓丹
郭春浩
李奋强
李志华
陈意生
侯惠琼
钟丙枝
凌福强
黄文亮
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Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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Priority to CN202010870499.7A priority Critical patent/CN112014610B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02Constructional details
    • G01R11/24Arrangements for avoiding or indicating fraudulent use
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/186Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using current transformers with a core consisting of two or more parts, e.g. clamp-on type
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

The invention discloses an electricity stealing prevention device applied to an electricity meter, wherein a first change-over switch can selectively contact a first contact element with an electricity testing pen point, a first conductive contact end and a first measuring end, a second change-over switch can selectively contact a second contact element with a second conductive contact end and a second measuring end, and the arrangement of the first change-over switch and the second change-over switch realizes that the electricity testing pen, a loader and a voltmeter share one contact element, effectively saves the occupied space of a main body, is beneficial to the miniaturization design of the electricity stealing prevention device and is convenient to carry. The anti-electricity-stealing device reasonably installs various operation tools required to be used in the anti-electricity-stealing operation process on the main body, has an optimized structure, is convenient to carry, reduces the possibility of damaging each operation tool, and is beneficial to prolonging the service life.

Description

Anti-electricity-stealing device applied to electric meter
Technical Field
The invention relates to the technical field of electricity stealing prevention, in particular to an electricity stealing prevention device applied to an electricity meter.
Background
At present, many lawbreakers try to directly steal electricity to cause loss of property of the country, so that workers are required to check the electric meters of users to counter the electricity stealing behavior. In the prior art, tools such as a clamp type ammeter, an electricity testing pen, a loader and a stopwatch are generally required to be carried in the process of checking low-voltage electricity-stealing prevention work, and due to the fact that the tools are more in work, tool omission and damage to the tools are prone to occurring, and inconvenience is brought to the electricity-stealing prevention work.
Disclosure of Invention
The invention aims to: the utility model provides an anti-electricity-stealing device for ammeter, it has portable and long service life's characteristics.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an anti-electricity-stealing device for ammeter, includes the main part and sets up test pencil, clamp type ampere meter, voltmeter, loader, time-recorder, display screen and the button subassembly on the main part, the one end of main part has the grip handle, and the other end has conductive contact subassembly, test pencil, clamp type ampere meter, loader and time-recorder all are located grip handle with between the conductive contact subassembly, the loader is located the top of clamp type ampere meter, conductive contact subassembly includes first contact and is located the second contact of first contact below, test pencil has the test pencil head, the loader has first conductive contact tip and the second conductive contact tip of being connected with positive and negative pole respectively, the voltmeter has first measuring terminal and second measuring terminal, the test pencil head, first conductive contact tip and first measuring terminal are connected with the first contact tip through first change over switch respectively, second conductive contact tip and second measuring terminal are connected with the second contact tip through second change over switch respectively, be provided with the trigger on the grip handle and be used for the press switch of the ammeter, the press-recorder and the button subassembly is connected with the press switch, the press-recorder, the press button subassembly, the press switch is connected with the press button subassembly, the test pencil, the press button subassembly and the press switch, the press switch is connected respectively.
As a preferable technical solution of the electricity stealing prevention device applied to the electricity meter, the electricity stealing prevention device further comprises a processor arranged inside the main body, and the processor is respectively connected with the loader, the timer and the display screen.
The anti-electricity-stealing device applied to the electric meter further comprises a storage, and the storage is respectively connected with the timer, the processor and the display screen.
As a preferable technical solution of the electricity stealing prevention device applied to the electricity meter, one end of the main body, which is far away from the grip handle, is provided with a sliding groove, the sliding groove extends along the height direction of the main body, and the first contact piece and the second contact piece are slidably connected with the sliding groove through a first sliding block and a second sliding block, respectively.
As a preferable technical scheme of the electricity stealing prevention device applied to the electric meter, two groove side walls in the width direction of the sliding groove are respectively provided with a guide rail rack, two opposite side surfaces of the first sliding block and two opposite side surfaces of the second sliding block are respectively provided with a sliding gear, and the sliding gears are meshed with the corresponding guide rail racks.
As a preferable technical solution of the electricity stealing prevention device applied to the electricity meter, a through hole is formed at a bottom of the sliding groove, the through hole penetrates through the inside and the outside of the main body, the through hole extends along the height direction of the main body, one end of the first contact piece sequentially penetrates through the first sliding block and the through hole and extends to the inside of the main body, and one end of the second contact piece sequentially penetrates through the second sliding block and the through hole and extends to the inside of the main body.
As a preferable technical solution of the electricity stealing prevention device applied to the electricity meter, each of the first contact and the second contact includes a first segment and a second segment hinged to the first segment, the second segment is capable of being turned around a position where the second segment is hinged to the first segment, so that the second segment can be folded inside the sliding groove with respect to the first segment, the first segment sequentially passes through the first sliding block and the through hole, or the first segment sequentially passes through the second sliding block and the through hole, and the second segment is located outside the main body.
As a preferable technical scheme of the electricity stealing prevention device applied to the electricity meter, a lighting lamp is further arranged on the main body.
As an optimal technical scheme of the anti-electricity-stealing device applied to the electric meter, one side of the holding handle is concavely provided with a finger placing position, the main switch button and the finger placing position are arranged on the same side face of the holding handle, and the main switch button is arranged above the finger placing position.
As a preferable technical solution of the electricity stealing prevention device applied to the electricity meter, the clamp body of the clamp-type ammeter includes a fixed clamp and a movable clamp, and the fixed clamp and the main body are integrally formed.
The invention has the beneficial effects that: first change over switch can contact first contact part selectively with test pencil head, first electrically conductive contact tip and first measuring end, and the second conversion contacts second contact part selectively with electrically conductive contact tip of second and second measuring end, and the setting of first change over switch and second change over switch has realized testing pencil, loader and voltmeter sharing a contact, has practiced thrift the occupation space to the main part effectively, is favorable to anti-electricity-stealing device miniaturized design, conveniently carries. The anti-electricity-stealing device reasonably installs various operation tools required to be used in the anti-electricity-stealing operation process on the main body, has an optimized structure, is convenient to carry, reduces the possibility of damage to each operation tool, and is beneficial to prolonging the service life.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
Fig. 1 is a schematic perspective view of an anti-electricity-stealing device applied to an electric meter according to an embodiment of the invention.
FIG. 2 is a schematic side view of an electricity stealing preventing device applied to an electricity meter according to an embodiment.
Fig. 3 is a schematic perspective view of another angle of the anti-electricity-stealing device applied to the electricity meter according to the embodiment.
Fig. 4 is an assembly diagram of the first contact, the first sliding block, and the sliding block.
Fig. 5 is an assembly diagram of the second contact, the second slider, and the slider.
In the figure:
1. a main body; 101. a grip handle; 102. a finger placing position; 2. a first contact; 3. a second contact; 4. a clamp-on ammeter; 5. a sliding groove; 501. a trench sidewall; 502. the bottom of the tank; 6. a test pencil switch button; 7. a timing button; 8. a loader switch button; 9. an illumination control button; 10. a master switch button; 11. a display screen; 12. a lighting lamp; 13. movable pliers; 14. a first slider; 15. a second slider; 16. a current meter trigger; 17. a rail rack; 18. a first segment; 19. a second section; 20. a sliding gear.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to 5, the invention provides an anti-electricity-stealing device applied to an electricity meter, which comprises a main body 1, and an electricity test pen, a clamp type ammeter 4, a voltmeter, a loader, a timer, a display screen 11 and a button assembly which are respectively arranged on the main body 1, wherein one end of the main body 1 is provided with a holding handle 101, and the other end is provided with a conductive contact assembly. The electroscope, the clamp-type ammeter 4, the loader and the timer are all located between the holding handle 101 and the conductive contact assembly, and the loader is located above the clamp-type ammeter 4. Specifically, test electrography, clamp type ampere meter 4, loader and time-recorder and all set up in the inside of main part 1, for the convenient electrography of examining of observing, can set up the observation hole in the position that main part 1 corresponds the electrography of examining. The conducting contact assembly comprises a first contact element 2 and a second contact element 3 located below the first contact element 2, the electroscope is provided with an electroscope head, the load device is provided with a first conducting contact end and a second conducting contact end which are respectively connected with a positive pole and a negative pole, and the voltmeter is provided with a first measuring end and a second measuring end. The electroscope pen point, the first conductive contact end and the first measuring end are respectively connected with the first contact part 2 through a first change-over switch, the second conductive contact end and the second measuring end are respectively connected with the second contact part 3 through a second change-over switch, an ammeter trigger 16 is arranged on the holding handle 101, and the ammeter trigger 16 is used for controlling the opening and closing of a clamp body of the clamp type ammeter 4. The clamp body of the clamp type ammeter 4 comprises a fixed clamp and a movable clamp 13, wherein the fixed clamp and the main body 1 are integrally formed. The button assembly comprises a main switch button 10, a timing button 7, an electroscope switch button 6 and a loader switch button 8, and the loader, the clamp-on ammeter 4, the voltmeter and the timer are respectively connected with the display screen 11.
It can be understood that a power module is disposed inside the main body 1, and the power module has a positive electrode and a negative electrode respectively connected to the first conductive contact end and the second conductive contact end, and supplies power to the display screen 11, the load, and the like through the power module. First change over switch can contact first contact 2 selectively with test pencil head, first electrically conductive contact jaw and first measuring terminal, second change over switch contacts second contact 3 selectively with electrically conductive contact jaw of second and second measuring terminal, first change over switch and second change over switch's setting has realized testing pencil, loader and voltmeter sharing one contact, has practiced thrift the occupation space to main part 1 effectively, is favorable to anti-electricity-stealing device miniaturized design, conveniently carries. The effect of loader is mainly to ammeter input pulse, and it is electrified whether to test the exposed metal body that the electrography is used for the side detection ammeter, tests the opening, the closing that test the electrography shift knob 6 can control the electroscope, and the voltmeter is used for measuring the voltage of the exposed metal body of ammeter, prevents the ammeter electric leakage, and then guarantees staff's personal safety. If the electroscope detects that the exposed metal body of the electric meter is electrified, the voltage of the exposed metal body of the electric meter is judged by using the voltmeter to judge whether the voltage is lower than 36V, and if the voltage is lower than the human body safety voltage, subsequent operation can be carried out. The method comprises the steps that a timer button 7 is pressed down while a loader is used for inputting pulses to an ammeter, the timer starts timing and displays test duration on a display screen 11, after the loader stops inputting the pulses to the ammeter, test power of the ammeter is calculated according to the test duration of the display screen 11, the calculated test power of the ammeter is compared with theoretical power of the ammeter, if the test power of the ammeter is smaller than the theoretical power of the ammeter, the ammeter is abnormal (namely a user has electricity stealing behavior), and if the test power of the ammeter is larger than or equal to the theoretical power, the ammeter is normal (namely the user does not have electricity stealing behavior). The load switch button 8 is used for controlling the load to stop and start, and the main switch button 10 can cut off a power supply module in the anti-theft device, so that the control is convenient. When the electric meter is used in a concrete mode, after the first conductive contact end and the second conductive contact end on the load device are respectively and electrically connected with the first contact element 2 and the second contact element 3 through the first change-over switch and the second change-over switch, the first contact element 2 and the second contact element 3 are respectively connected with a conductive screw of an air switch on the electric meter. Wherein the current meter clamp 4 is used for measuring the current of the live wire and the neutral wire. According to the anti-electricity-stealing device, various operation tools which need to be used in the anti-electricity-stealing operation process are reasonably arranged on the main body 1, the structure is optimized, the carrying is convenient, the possibility of damage to each operation tool is reduced, and the service life is prolonged.
Wherein, anti-electricity-stealing device still including set up in the inside treater of main part 1, the treater respectively with the loader, the timer with display screen 11 is connected. The processor may calculate the test power of the electricity meter according to the input pulse and the test time period of the loader and display the test power of the electricity meter on the display screen 11, and the processor may compare the test power of the electricity meter with the actual power of the electricity meter and display the comparison result on the display screen 11. When the test power of the ammeter is smaller than the theoretical power of the ammeter, the power is represented by a mark, and when the test power of the ammeter is not smaller than the theoretical power of the ammeter, the power is represented by a mark. The processor can automatically calculate and analyze the test power, thereby improving the working efficiency and reducing the working difficulty.
As a preferred embodiment, the electricity stealing prevention device further comprises a storage, the storage is respectively connected with the timer, the processor and the display, the processor can store the test duration, the test power and the test result, the test result is automatically recorded, and a worker can compare data in the test process, so that the realization of big data management is facilitated.
In an embodiment, a sliding groove 5 is provided at an end of the main body 1 away from the grip handle 101, the sliding groove 5 extends along a height direction of the main body 1, and the first contact 2 and the second contact 3 are slidably connected to the sliding groove 5 through a first sliding block 14 and a second sliding block 15, respectively. Through first sliding block 14 and second sliding block 15 inside the sliding tray 5 slip, can drive first touching part 2 and second touching part 3 and slide along main part 1 direction of height, and then can change the interval between first touching part 2 and the second touching part 3 in a flexible way for the interval between first touching part 2 and the second touching part 3 is applicable to the air switch of the ammeter of different models.
The sliding groove 5 has two groove bottoms 502 and two groove side walls 501, and the two groove side walls 501 are respectively distributed along the width direction of the sliding groove 5 at intervals. Two groove side walls 501 of the width direction of the sliding groove 5 are respectively provided with a guide rail rack 17, two opposite side surfaces of the first sliding block 14 and two opposite side surfaces of the second sliding block 15 are respectively provided with a sliding gear 20, and the sliding gear 20 is meshed with the corresponding guide rail rack 17. When the first sliding block 14 and the second sliding block 15 are pushed, the sliding gears 20 on the side surfaces of the first sliding block 14 and the second sliding block 15 are meshed with the guide rail racks 17 for transmission, so that the first sliding block 14 and the second sliding block 15 slide relative to the sliding groove 5, when the first sliding block 14 and the second sliding block 15 are stopped to be pushed, the first sliding block 14 and the second sliding block 15 can be positioned in the sliding groove 5, and other locking components are not required to be arranged for positioning the first sliding block 14 and the second sliding block 15.
Of course, in other embodiments, it is also possible to directly place first sliding block 14 and second sliding block 15 in sliding groove 5, directly push first sliding block 14 and second sliding block 15 to slide in sliding groove 5, adjust the distance between first sliding block 14 and second sliding block 15, and then screw locking screws through first sliding block 14 and second sliding block 15 onto groove bottom 502 of sliding groove 5 to position first sliding block 14 and second sliding block 15.
A through hole is formed in the groove bottom 502 of the sliding groove 5, which penetrates through the inside and the outside of the main body 1, the through hole extends along the height direction of the main body 1, one end of the first contact element 2 penetrates through the first sliding block 14 and the through hole in sequence and extends into the main body 1, and one end of the second contact element 3 penetrates through the second sliding block 15 and the through hole in sequence and extends into the main body 1. Specifically, the first changeover switch and the first contact 2 and the second changeover switch and the second contact 3 are connected by conductive wires. Because the sliding groove 5 and the through hole both extend along the height direction of the main body 1, when the first sliding block 14 and the second sliding block 15 are pushed to slide in the sliding groove 5, the first contact piece 2 and the second contact piece 3 move in the through hole along the height direction of the main body 1, and by the design, the phenomenon that the conductive wires on the first contact piece 2 and the second contact piece 3 are wound can be effectively prevented when the first sliding block 14 and the second sliding block 15 slide.
In another embodiment, each of the first contact 2 and the second contact 3 includes a first segment 18 and a second segment 19 hinged to the first segment 18, the second segment 19 being turnable around its position hinged to the first segment 18 so that the second segment 19 can be folded inside the sliding slot 5 with respect to the first segment 18, the first segment 18 sequentially passing through the first sliding block 14 and the through hole, or the first segment 18 sequentially passing through the second sliding block 15 and the through hole, the second segment 19 being located outside the body 1. The first contact 2 and the second contact 3 are both composed of a first segment 18 and a second segment 19, the second segment 19 and the first segment 18 can be folded with each other when the anti-theft device is not used, so that the second segment 19 and the first segment 18 are folded inside the sliding groove 5, the second segment 19 is prevented from protruding out of one end of the main body 1 far away from the holding handle 101, and when the first contact 2 and the second contact 3 are needed to be used, the second segment 19 and the first segment 18 are straightened, so that the second segment 19 protrudes out of the main body 1. When the anti-electricity-stealing device is not used, the first touch element 2 and the second touch element 3 can be bent, so that the occupied space of the anti-electricity-stealing device is saved, the anti-electricity-stealing device is convenient to carry, and the attractiveness of the anti-electricity-stealing device is improved.
In order to adapt the anti-electricity-stealing device to a dim environment, a lighting lamp 12 is arranged on the main body 1, and the lighting lamp 12 is powered by a power supply module. In actual operation, the illuminating lamp 12 can be used for illumination, the versatility of the electricity stealing prevention device is increased, and the use is convenient. In order to control the illuminating lamp 12, an illumination control button 9 is arranged on the main body 1.
In this embodiment, a finger placing position 102 is concavely disposed on one side of the holding handle 101, the main switch button 10 and the finger placing position 102 are disposed on the same side of the holding handle 101, and the main switch button 10 is disposed above the finger placing position 102. Since the main switch knob 10 and the finger placing position 102 are on the same side of the grip handle 101 and the main switch knob 10 is located above the finger placing position 102, it is convenient to operate the main switch knob 10.
In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like are based on the orientations and positional relationships shown in the drawings for convenience in description and simplicity in operation, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it will be understood by those skilled in the art that the specification as a whole and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. The utility model provides an anti-electricity-stealing device for ammeter, its characterized in that includes the main part and sets up test pencil, clamp type ampere meter, voltmeter, loader, time-recorder, display screen and the button subassembly on the main part, the one end of main part has the grip handle, the other end has conductive contact subassembly, test pencil, clamp type ampere meter, loader and time-recorder all are located between grip handle and the conductive contact subassembly, the loader is located the top of clamp type ampere meter, conductive contact subassembly includes first contact and the second contact that is located the first contact below, test pencil has test pencil head, the loader has first conductive contact tip and the second conductive contact tip of being connected with positive and negative pole respectively, the voltmeter has first measuring terminal and second measuring terminal, the test pencil head, first conductive contact tip and first measuring terminal are connected with the first through first change over switch respectively, second conductive contact tip and second measuring terminal pass through second change over switch and second change over switch with the second contact tip respectively with the second contact tip, the press switch button subassembly is used for the press switch is connected with the ammeter, the press switch is connected with the press button subassembly, the grip type ampere meter is used for the press switch, the press button subassembly with the press switch, the load, the press button subassembly is connected with the load, the test pencil, the trigger is provided with the load, the press switch is used for controlling the press button subassembly is included.
2. An electricity meter theft prevention device as applied to an electricity meter in accordance with claim 1 further including a processor disposed within said body, said processor being connected to said load, said timer and said display screen respectively.
3. An electricity meter electricity stealing prevention device as in claim 2, further comprising a memory, said memory being connected to said timer, said processor and said display screen respectively.
4. The device of claim 1, wherein the body is provided with a sliding groove at an end thereof remote from the grip handle, the sliding groove extending along a height direction of the body, and the first contact and the second contact are slidably connected to the sliding groove via a first sliding block and a second sliding block, respectively.
5. The electricity stealing prevention device applied to an electricity meter according to claim 4, wherein guide rail racks are respectively arranged on two groove side walls in the width direction of the sliding groove, and two opposite side surfaces of the first sliding block and two opposite side surfaces of the second sliding block are respectively provided with sliding gears which are meshed with the corresponding guide rail racks.
6. The electricity theft prevention device applied to an electricity meter according to claim 5, wherein a groove bottom of said sliding groove is provided with a through hole penetrating through the inside and the outside of said main body, said through hole extends along the height direction of said main body, one end of said first contact piece penetrates through said first sliding block and said through hole in sequence and extends to the inside of said main body, and one end of said second contact piece penetrates through said second sliding block and said through hole in sequence and extends to the inside of said main body.
7. The device of claim 6, wherein the first and second contacts each comprise a first section and a second section hinged to the first section, the second section being reversible about its hinged position to the first section so that the second section can be folded inside the sliding slot for the first section, the first section passing through the first sliding block and the through hole in sequence, or the first section passing through the second sliding block and the through hole in sequence, the second section being outside the body.
8. Anti-theft device applied to electricity meters according to any of the claims from 1 to 7, characterized in that on said body there is also provided a lighting lamp.
9. The device of claim 1, wherein the grip handle has a finger rest recessed on one side, the main switch button and the finger rest being on the same side of the grip handle, the main switch button being above the finger rest.
10. The device of claim 1, wherein the body of the current clamp meter comprises a fixed jaw and a movable jaw, the fixed jaw being integrally formed with the body.
CN202010870499.7A 2020-08-26 2020-08-26 Anti-electricity-stealing device applied to ammeter Active CN112014610B (en)

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