CN117630802A - Electric energy meter and metering detection device - Google Patents

Abstract

The invention relates to the technical field of electric energy meter detection, in particular to an electric energy meter and a metering detection device, wherein the electric energy meter comprises an electric energy meter body, and a turntable is arranged in the electric energy meter body; the electric energy meter is internally provided with a zero setting component, the zero setting component comprises a driving structure and a locking structure, the locking structure comprises a push rod arranged on the electric energy meter body, the driving component comprises a push rod arranged on the electric energy meter body, after the push rod is pushed towards the electric energy meter body, the push rod can be pushed towards the electric energy meter body, so that the rotary table rotates relative to the pointer; the metering detection device is characterized by comprising a detection meter, wherein a detection mechanism is arranged in the detection meter and comprises a gear component and a trigger component, the trigger component comprises a deflection structure and a lifting structure, the deflection structure is connected with a pointer, and after the detection meter is connected with the electric energy meter body, the gear component is regulated and controlled, and the deflection structure and the lifting structure synchronously act to detect the electric energy meter body.

Description

Electric energy meter and metering detection device

Technical Field

The invention relates to the technical field of electric energy meter detection, in particular to an electric energy meter and a metering detection device.

Background

An electric energy meter, an instrument for measuring electric energy, when generally using, need to detect the measurement accuracy of electric energy meter to make the data that measure more accurate and reliable.

At present, the detection method for the electric energy meter is divided into two types, namely, a direct method, namely, a calibrator and a current loop of the detected meter are connected in series, voltage ends are connected in parallel, a clamp type transformer of the calibrator is used for sampling current signals, the voltage ends are connected in parallel, then the electric energy meter field calibrator is compared with the calibrated electric energy meter to detect the accuracy of the electric energy meter, however, the two types are all required to detect the connection line of the electric energy meter by connecting the calibrator into the electric energy meter, the detection result is extremely easy to be influenced by other lines, if the other lines are accidentally touched, the final result is influenced, and the detection result is error.

Disclosure of Invention

The invention aims to provide an electric energy meter and a metering detection device so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides an electric energy meter and measurement detection device, includes the electric energy meter body, install the carousel in the electric energy meter body, rotate on the carousel and install the pointer;

the utility model discloses a power meter, including the electric energy meter body, the internal zero setting subassembly that is provided with of electric energy meter, zero setting subassembly includes drive structure and locking structure, locking structure is including sliding the push rod that sets up on the electric energy meter body, drive assembly is including sliding the setting push rod on the electric energy meter body, towards after this internal push rod of electric energy meter, push rod can be towards this internal push of electric energy meter forces the carousel is relative the pointer rotates.

As a further scheme of the invention: the driving structure further comprises a toothed plate which is arranged in the electric energy meter body in a sliding mode, the toothed plate is fixedly connected with the pressing rod, the toothed plate is meshed with a rotating wheel which is rotatably arranged in the electric energy meter body, and the rotating wheel is connected with the rotary table through a belt.

As still further aspects of the invention: the locking structure comprises a locking block which is arranged in the electric energy meter body in a sliding mode, and the locking block is matched with the toothed plate.

Still including setting up fixed plate on the locking piece, the guide way has been seted up on the fixed plate, the guide way sliding is provided with fixedly and is provided with the projecting column on the push rod, just be provided with fixed sleeve on the fixed plate, fixed sleeve with set up the dead lever sliding connection in the electric energy meter body, it is provided with first spring to slide on the dead lever, the one end of first spring with electric energy meter body butt, the other end with fixed sleeve butt.

The utility model provides a measurement detection device, includes foretell an electric energy meter, still includes the detection table, be provided with detection mechanism in the detection table, detection mechanism includes gear subassembly and trigger assembly, trigger assembly is including deflecting structure and elevation structure, works as after detection table and electric energy meter body coupling, regulation and control gear subassembly opens the detection table, deflecting structure with elevation structure synchronization action can be right the electric energy meter body detects.

As still further aspects of the invention: the deflection structure comprises a plug rod which is rotatably arranged on the detection meter, the plug rod is matched with the rotating shaft of the pointer, a deflection rod is fixedly arranged on the plug rod, a fixed block is arranged at one end, far away from the plug rod, of the deflection rod, and the fixed block is slidably connected with a lifting plate which is slidably arranged in the detection meter.

As still further aspects of the invention: the lifting structure comprises a magnetic attraction structure and an elastic reset structure, the magnetic attraction structure comprises an iron core fixedly arranged in the detection meter, a wire is wound on the iron core, one end of the wire is connected with a power supply fixedly arranged in the detection meter, and the other end of the wire is connected with a group of connecting posts fixedly arranged in the detection meter.

As still further aspects of the invention: the elastic reset structure comprises an armature arranged in the detection meter in a sliding manner, a trigger piece is fixedly arranged at one end of the armature away from the iron core, a sleeve barrel is fixedly arranged on the armature, the sleeve barrel is fixedly arranged in sliding connection with a sliding rod in the detection meter, a second spring is arranged on the sliding rod in a sliding manner, one end of the second spring is in butt joint with the sleeve barrel, and the other end of the second spring is in butt joint with the end of the sliding rod.

As still further aspects of the invention: the gear assembly comprises a gear fixing structure and an adjusting structure, the adjusting structure comprises a rotating rod arranged in the detection meter, a movable sleeve is arranged on the rotating rod in a sliding mode, a protrusion is formed on the inner wall of the movable sleeve, the protrusion is arranged in a spiral groove formed in the outer wall of the rotating rod in a sliding mode, the movable sleeve is fixedly connected with a sliding sheet of the sliding rheostat in the detection meter, one end of the sliding rheostat is connected with the other group of binding posts through a wire, and the other end of the sliding rheostat is connected with a power supply through a wire.

As still further aspects of the invention: the gear fixing structure comprises a rotating part and a locking part, the rotating part comprises a locking rod which is rotatably arranged on the detection meter, the locking rod is connected with the rotating rod through a bevel gear set, the locking rod penetrates through one end of the detection meter to be fixedly provided with a gear button, and a locking block is formed at one end which is immersed into the detection meter.

As still further aspects of the invention: the locking piece is including setting up fixed section of thick bamboo in the detecting table, it is provided with the telescopic link to slide in the fixed section of thick bamboo, the telescopic link is kept away from the one end of fixed section of thick bamboo is rotated and is installed the pulley, the pulley with the locking piece cooperation, just it is provided with the third spring to slide in the fixed section of thick bamboo, the one end of third spring with the bottom butt of fixed section of thick bamboo, the other end with the telescopic link butt.

Compared with the prior art, the invention has the beneficial effects that:

by arranging the zero setting component, the position of the pointer can be aligned with the zero scale line of the turntable by utilizing the cooperation between the driving structure and the locking structure, so that the numerical value measured subsequently is more accurate;

through setting up the detection table that can with electric energy meter body electric connection, through the detection mechanism of inside setting, utilize lifter plate and the armature that goes up and down in step to detect the dose degree of electric energy meter body, detection structure shows on the display screen of detection table, so that the user adjusts, gear subassembly that sets up on the simultaneous detection table can provide the detection current of equidimension for electric energy meter body, thereby can carry out the multiple contrast to the electric energy meter and detect, thereby reduce the error of detection, improve the accuracy of detection, and the testing process need not to be connected to in the detection circuit of electric energy meter, consequently can not receive the influence of other circuits.

Drawings

Fig. 1 is a schematic diagram of a separation state of an electric energy meter and a detection meter in a metering detection device.

Fig. 2 is a schematic structural diagram of the inside of the electric energy meter body in the metering and detecting device.

Fig. 3 is a schematic structural view of a locking structure in the metering detection device.

Fig. 4 is a schematic structural view of a push rod in the metering inspection device.

Fig. 5 is a schematic view of the structure of the detection surface and back surface of the measurement detection device.

Fig. 6 is a schematic diagram showing the structure of the inside of the detection table in the measurement detection apparatus.

Fig. 7 is a schematic structural view of a lifting structure in the metering inspection device.

Fig. 8 is a schematic structural view of a gear assembly in the metering inspection device.

Fig. 9 is a schematic structural view of an adjusting structure in the metering detecting device.

Fig. 10 is a schematic structural diagram of a connection between a spiral groove and a slide in a metering and detecting device.

Fig. 11 is a schematic structural view of a gear shift structure in the metering detection device.

In the figure: 1. an electric energy meter body; 101. a wiring hole; 2. a detection table; 201. inserting a connecting rod; 202. binding posts; 203. a power supply; 3. a turntable; 4. a pointer; 401. a rotating shaft; 5. a belt; 6. a rotating wheel; 7. a toothed plate; 8. pressing a pressing rod; 9. a locking block; 10. a push rod; 1001. a protruding column; 11. a fixing plate; 1101. a guide groove; 1102. a fixed sleeve; 12. a first spring; 13. a fixed rod; 14. a deflection lever; 1401. a fixed block; 15. a lifting plate; 1501. a through groove; 1502. a trigger plate; 16. an armature; 1601. a trigger plate; 17. a second spring; 18. a slide bar; 19. an iron core; 20. a wire; 21. a slide rheostat; 22. a rotating lever; 2201. a spiral groove; 23. a sliding sheet; 2301. moving the sleeve; 2302. a protrusion; 24. a bevel gear set; 25. a locking lever; 2501. a gear button; 26. a locking block; 2601. an end face; 27. a fixed cylinder; 28. a third spring; 29. a telescopic rod; 30. and (3) a pulley.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In addition, an element in the present disclosure may be referred to as being "fixed" or "disposed" on another element or being directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 4, in an embodiment of the present invention, an electric energy meter includes an electric energy meter body 1, a turntable 3 is installed in the electric energy meter body 1, and a pointer 4 is rotatably installed on the turntable 3;

the electric energy meter comprises an electric energy meter body 1, and is characterized in that a zero setting component is arranged in the electric energy meter body 1 and comprises a driving structure and a locking structure, the locking structure comprises a push rod 10 which is arranged on the electric energy meter body 1 in a sliding manner, the driving component comprises a push rod 8 which is arranged on the electric energy meter body 1 in a sliding manner, after the push rod 10 is pushed into the electric energy meter body 1, the push rod 8 can push into the electric energy meter body 1, and the rotary table 3 is forced to rotate relative to the pointer 4;

the driving structure further comprises a toothed plate 7 which is arranged in the electric energy meter body 1 in a sliding manner, the toothed plate 7 is fixedly connected with the pressing rod 8, the toothed plate 7 is meshed with a rotating wheel 6 rotatably arranged in the electric energy meter body 1, and the rotating wheel 6 is connected with the rotary disc 3 through a belt 5;

the locking structure comprises a locking block 9 which is arranged in the electric energy meter body 1 in a sliding manner, and the locking block 9 is matched with the toothed plate 7;

specifically, referring to fig. 2, tooth-shaped structures are formed on the upper and lower sides of the toothed plate 7, the rotating wheel 6 is configured as a gear, the tooth-shaped structure on the upper side of the toothed plate 7 is meshed with the rotating wheel 6, the tooth-shaped structure on the lower side of the toothed plate 7 is meshed with the tooth-shaped structure formed on the locking block 9, the meshed toothed plate 7 and the locking block 9 can fix the position of the toothed plate 7, the rotating wheel 6 is fixed, so that the position of the turntable 3 is not moved, and the pointer 4 is aligned with the zero scale mark position of the turntable 3 under the condition that the standard electric energy meter body 1 is not electrified.

The electric energy meter comprises a push rod 10, a locking block 9, a fixing plate 11, a guide groove 1101, a protruding column 1001, a fixing sleeve 1102 and a first spring 12, wherein the fixing plate 11 is arranged on the locking block 9, the guide groove 1101 is formed in the fixing plate 11, the protruding column 1001 is fixedly arranged on the push rod 10 in a sliding mode, the fixing sleeve 1102 is arranged on the fixing plate 11 and is in sliding connection with the fixing rod 13 arranged in the electric energy meter body 1, the first spring 12 is arranged on the fixing rod 13 in a sliding mode, one end of the first spring 12 is in abutting connection with the electric energy meter body 1, and the other end of the first spring is in abutting connection with the fixing sleeve 1102;

from the above, when the standard electric energy meter body 1 is not electrified, the pointer 4 is aligned with the zero graduation line of the turntable 3, but when the standard electric energy meter is used, the position of the pointer 4 is inevitably deviated from the zero graduation line, so that the electric energy meter body 1 is required to be zeroed before the standard electric energy meter is used, and the pointer 4 is aligned with the zero graduation line, so that the measurement value is ensured to be accurate;

specifically, referring to fig. 2, 3 and 4, in an initial state, the first spring 12 is in a compressed state, pushes the fixed plate 11 to approach the toothed plate 7, so that the locking block 9 is meshed with the toothed plate 7, at this time, the protruding column 1001 is located at the tail end of the guide slot 1101 and far away from the toothed plate 7, when the time is adjusted, the push rod 10 is pushed inwards, the protruding column 1001 and the side wall of the guide slot 1101 are pressed in contact, slide in the guide slot 1101, and force the fixed plate 11 to drive the locking block 9 to keep away from the toothed plate 7 until the tooth-shaped structure of the locking block 9 is separated from the tooth-shaped structure of the toothed plate 7, at this time, the first spring 12 is further compressed, the toothed plate 7 is released, then the pressing rod 8 is pushed or pulled towards the inside of the electric energy meter body 1, the toothed plate 7 drives the rotating wheel 6 to rotate, and drives the turntable 3 to rotate clockwise or anticlockwise under the action of the belt 5 until the zero scale line of the turntable 3 is aligned with the pointer 4, the push rod 10 is released, the first spring 12 releases elastic potential energy to push the locking block 9 to be combined with the toothed plate 7, the position of the toothed plate 7 is locked, and then the position of the turntable 3 is locked, and the position of the pointer 4 is aligned with the measured with the zero line of the measured value.

Referring to fig. 1, 5, 6, 7, 8, 9, 10 and 11, a metering detection device is further provided, including an electric energy meter, and further including a detection meter 2, a detection mechanism is disposed in the detection meter 2, the detection mechanism includes a gear component and a trigger component, the trigger component includes a deflection structure and a lifting structure, when the detection meter 2 is connected with the electric energy meter body 1, the gear component is regulated and controlled, the detection meter 2 is opened, and the deflection structure and the lifting structure synchronously act, so that the electric energy meter body 1 can be detected;

specifically, referring to fig. 1 and 5, two sets of wiring holes 101 are provided on the electric energy meter body 1, two sets of wiring posts 202 are provided on the back of the corresponding detection meter 2, the wiring posts 202 are connected with the detection circuit in the detection meter 2, the wiring posts 202 are adapted to the wiring holes 101, the electric energy meter body 1 and the detection meter 2 can be electrically connected by inserting the wiring posts 202 into the wiring holes 101, and then the detection meter 2 is opened to perform metering detection on the electric energy meter body 1, so as to determine whether the electric energy meter body 1 is accurate.

The deflection structure comprises a plug rod 201 rotatably installed on the detection table 2, a deflection rod 14 is fixedly arranged on the plug rod 201, a fixed block 1401 is arranged at one end, away from the plug rod 201, of the deflection rod 14, and the fixed block 1401 is in sliding connection with a lifting plate 15 slidably arranged in the detection table 2;

referring to fig. 1 and 5, a similar linear groove is formed on the rotation shaft 401 of the pointer 4, a protrusion adapted to the linear groove is formed on the plugging rod 201, when the detecting meter 2 is electrically connected to the electric energy meter body 1 by the wiring post 202 and the wiring hole 101, the plugging rod 201 is just clamped with the rotation shaft 401, and when the pointer 4 deflects, the deflected pointer 4 drives the plugging rod 201 to rotate and further drives the deflecting rod 14 to rotate, and particularly, referring to fig. 2 and 6, the deflecting rod 14 is collinear with the pointer 4, and when the pointer 4 rotates clockwise, the fixing block 1401 at the end of the deflecting rod 14 contacts and extrudes with the groove wall of the through groove 1501 formed on the lifting plate 15, so that the lifting plate 15 is forced to drive the trigger plate 1502 fixedly connected with the lifting plate to slide along the vertical direction of the detecting meter 2.

The lifting structure comprises a magnetic attraction structure and an elastic reset structure, the magnetic attraction structure comprises an iron core 19 fixedly arranged in the detection table 2, a wire 20 is wound on the iron core 19, one end of the wire 20 is connected with a power supply 203 fixedly arranged in the detection table 2, and the other end of the wire 20 is connected with a group of connecting posts 202 fixedly arranged in the detection table 2;

the elastic reset structure comprises an armature 16 which is arranged in the detection table 2 in a sliding manner, a trigger piece 1601 is fixedly arranged at one end, far away from the iron core 19, of the armature 16, a sleeve barrel is fixedly arranged on the armature 16 and is in sliding connection with a sliding rod 18 which is fixedly arranged in the detection table 2, a second spring 17 is arranged on the sliding rod 18 in a sliding manner, one end of the second spring 17 is abutted with the sleeve barrel, and the other end of the second spring is abutted with the end of the sliding rod 18;

specifically, referring to fig. 6 and 7, in an initial state, the second spring 17 is in a compressed state, pushes the armature 16 away from the iron core 19, and expands, referring to fig. 6, after the detection meter 2 is connected with the electric energy meter body 1, the iron core 19, the power supply 203, the binding post 202, the electric energy meter body 1 and the sliding rheostat 21 form a closed loop, then the detection meter 2 is opened to detect the electric energy meter body 1 without accessing other circuits, so that the final detection result is not affected by the other circuits, after the electric energy meter body 1 is zeroed, the gear assembly is opened, the power supply 203 supplies power to the whole loop, the pointer 4 rotates, at this time, the iron core 19 is magnetized by the wire 20 wound on the iron core 19, the magnetized iron core 19 attracts the armature 16 to descend along the length direction of the detection meter 2, and gradually approaches the iron core 19, and further extrudes the second spring 17, particularly, if the distance of the movement of the armature 16 is the same as that of the lifting plate 15, the trigger plate 1502 fixed on the lifting plate 15 is not contacted with the trigger member to the trigger member 1601 to produce a normal extrusion display screen on the detection meter 2; if the moving distance of the armature 16 is greater than or less than the moving distance of the lifter plate 15, the trigger plate 1502 will contact and squeeze with the switch disposed at the lower end or the upper end of the trigger 1601, and the display screen of the detection table 2 will display too large or too small, so that the user is prompted to further adjust the device, and when the device is adjusted, the gear assembly is closed, the current in the wire 20 suddenly drops, the magnetization phenomenon of the iron core 19 disappears, and the second spring 17 releases elastic potential energy to push the armature 16 to return to the initial position for subsequent detection again.

Further, referring to fig. 8, 9, 10 and 11, the gear assembly includes a gear structure and an adjusting structure, the adjusting structure includes a rotating rod 22 disposed in the detection table 2, a moving sleeve 2301 is slidably disposed on the rotating rod 22, a protrusion 2302 is formed on an inner wall of the moving sleeve 2301, the protrusion 2302 is slidably disposed in a spiral groove 2201 formed on an outer wall of the rotating rod 22, the moving sleeve 2301 is fixedly connected with a sliding sheet 23 fixedly disposed in a sliding rheostat 21 in the detection table 2, one end of the sliding rheostat 21 is connected with another set of binding posts 202 through a wire 20, and the other end is connected with the power supply 203 through the wire 20;

the gear fixing structure comprises a rotating piece and a locking piece, the rotating piece comprises a locking rod 25 rotatably installed on the detection table 2, the locking rod 25 is connected with the rotating rod 22 through a bevel gear set 24, a gear button 2501 is fixedly arranged at one end of the locking rod 25 penetrating through the detection table 2, and a locking block 26 is formed at one end of the locking rod, which is immersed into the detection table 2;

the bevel gear set 24 includes a first bevel gear and a second bevel gear, the first bevel gear is coaxially fixed with the locking lever 25, the second bevel gear is coaxially fixedly connected with the rotating lever 22, through rotating the gear knob 2501, the locking lever 25 drives the rotating lever 22 to rotate under the connection effect of the bevel gear set 24, when the rotating lever 22 rotates, the protrusion 2302 cooperates with the spiral groove 2201 to force the moving sleeve 2301 to slide along the axial direction of the rotating lever 22, and then drives the sliding vane 23 to act, so as to change the resistance value of the sliding rheostat 21 connected into the closed loop, specifically, when the moving sleeve 2301 descends along the length direction of the detecting table 2, the resistance value of the sliding rheostat 21 connected into the closed loop is larger, the current in the conducting wire 20 is smaller, and the rotating angle of the pointer 4 is changed by adjusting the current in the conducting wire 20, so as to carry out multiple comparison detection on the electric energy meter body 1, thereby reducing the detection error and improving the detection accuracy.

The locking piece comprises a fixed cylinder 27 arranged in the detection table 2, a telescopic rod 29 is arranged in the fixed cylinder 27 in a sliding manner, a pulley 30 is rotatably arranged at one end, far away from the fixed cylinder 27, of the telescopic rod 29, the pulley 30 is matched with the locking block 26, a third spring 28 is arranged in the fixed cylinder 27 in a sliding manner, one end of the third spring 28 is abutted with the bottom of the fixed cylinder 27, and the other end of the third spring is abutted with the telescopic rod 29;

preferably, referring to fig. 9 and 10, three groups of structures similar to a triangle are equidistantly arranged on the locking block 26 along the circumferential direction of the locking rod 25, and the two adjacent groups of structures are connected by an arc surface, specifically, the third spring 28 is in a compressed state, the third spring 28 in the compressed state pushes the telescopic rod 29 to move towards the outside of the fixed cylinder 27, so that the pulley 30 is abutted against the arc surfaces of two groups of adjacent structures similar to the triangle, when the electric energy meter body 1 is detected by using the gear assembly, the gear button 2501 is rotated, the hypotenuse of the triangle is pressed against the pulley 30, the telescopic rod 29 is pushed to move towards the inside of the fixed cylinder 27 until the pulley 30 passes over the end surface 2601 of the triangle, the third spring 28 releases elastic potential energy, the locking rod 25 is pushed to automatically rotate in the same direction until the arc surface of the pulley 30 is abutted against the next group of circles, at this time, the resistance value in the closed loop is changed by the slide rheostat 21, and then the detection meter 2 is opened, so that the electric energy meter body 1 can be detected by the rotation of the gear button 2501, and the electric energy meter can be detected accurately.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

1. An electric energy meter comprises an electric energy meter body (1), wherein a rotary table (3) is arranged in the electric energy meter body (1), and a pointer (4) is rotatably arranged on the rotary table (3); the method is characterized in that:

be provided with the zeroing subassembly in electric energy meter body (1), the zeroing subassembly includes drive structure and locking structure, the locking structure is including sliding setting push rod (10) on electric energy meter body (1), the drive assembly is including sliding setting push rod (8) on electric energy meter body (1), the orientation after pushing push rod (10) in electric energy meter body (1), push rod (8) can be oriented push in electric energy meter body (1), force carousel (3) are relative pointer (4) rotate.

2. An electric energy meter according to claim 1, characterized in that the drive structure further comprises a toothed plate (7) slidably arranged in the electric energy meter body (1), the toothed plate (7) is fixedly connected with the pressing rod (8), and the toothed plate (7) is meshed with a rotating wheel (6) rotatably arranged in the electric energy meter body (1), and the rotating wheel (6) is connected with the turntable (3) through a belt (5).

3. An electric energy meter according to claim 2, characterized in that the locking structure comprises a locking block (9) slidingly arranged in the electric energy meter body (1), the locking block (9) cooperating with the toothed plate (7);

still including setting up fixed plate (11) on locking piece (9), guide way (1101) have been seted up on fixed plate (11), it is provided with fixedly to slide in guide way (1101) projection (1001) on push rod (10), just be provided with fixed sleeve (1102) on fixed plate (11), fixed sleeve (1102) with set up dead lever (13) sliding connection in electric energy meter body (1), it is provided with first spring (12) to slide on dead lever (13), the one end of first spring (12) with electric energy meter body (1) butt, the other end with fixed sleeve (1102) butt.

4. The metering detection device is characterized by comprising the electric energy meter according to any one of claims 1-3, and further comprising a detection meter (2), wherein a detection mechanism is arranged in the detection meter (2), the detection mechanism comprises a gear component and a trigger component, the trigger component comprises a deflection structure and a lifting structure, when the detection meter (2) is connected with the electric energy meter body (1), the gear component is regulated and controlled, the detection meter (2) is opened, and the deflection structure and the lifting structure synchronously act, so that the electric energy meter body (1) can be detected.

5. The metering detection device according to claim 4, wherein the deflection structure comprises a plug rod (201) rotatably mounted on the detection meter (2), a deflection rod (14) is fixedly arranged on the plug rod (201), a fixed block (1401) is arranged at one end, far away from the plug rod (201), of the deflection rod (14), and the fixed block (1401) is in sliding connection with a lifting plate (15) slidably arranged in the detection meter (2).

6. The metering detection device according to claim 4, wherein the lifting structure comprises a magnetic attraction structure and an elastic reset structure, the magnetic attraction structure comprises an iron core (19) fixedly arranged in the detection meter (2), a wire (20) is wound on the iron core (19), one end of the wire (20) is connected with a power supply (203) fixedly arranged in the detection meter (2), and the other end of the wire is connected with a set of connecting posts (202) fixedly arranged in the detection meter (2).

7. A metering and detecting device according to claim 6, characterized in that the elastic reset structure comprises an armature (16) slidably arranged in the detecting meter (2), a trigger piece (1601) is fixedly arranged at one end of the armature (16) away from the iron core (19), a sleeve barrel is fixedly arranged on the armature (16), the sleeve barrel is slidably connected with a sliding rod (18) fixedly arranged in the detecting meter (2), a second spring (17) is slidably arranged on the sliding rod (18), one end of the second spring (17) is abutted with the sleeve barrel, and the other end is abutted with the end of the sliding rod (18).

8. The metering detection device according to claim 6, wherein the gear assembly comprises a gear structure and an adjusting structure, the adjusting structure comprises a rotating rod (22) arranged in the detection table (2), a movable sleeve (2301) is slidably arranged on the rotating rod (22), a protrusion (2302) is formed on the inner wall of the movable sleeve (2301), the protrusion (2302) is slidably arranged in a spiral groove (2201) formed on the outer wall of the rotating rod (22), the movable sleeve (2301) is fixedly connected with a sliding sheet (23) fixedly arranged in a sliding rheostat (21) in the detection table (2), one end of the sliding rheostat (21) is connected with the other group of binding posts (202) through a wire (20), and the other end of the sliding rheostat (21) is connected with the power supply (203) through the wire (20).

9. The metering detection device according to claim 8, wherein the gear fixing structure comprises a rotating member and a locking member, the rotating member comprises a locking rod (25) rotatably mounted on the detection meter (2), the locking rod (25) is connected with the rotating rod (22) through a bevel gear set (24), a gear button (2501) is fixedly arranged at one end of the locking rod (25) penetrating through the detection meter (2), and a locking block (26) is formed at one end immersed into the detection meter (2).

10. A metering and detecting device according to claim 9, characterized in that the locking member comprises a fixed cylinder (27) arranged in the detecting meter (2), a telescopic rod (29) is slidably arranged in the fixed cylinder (27), one end of the telescopic rod (29) away from the fixed cylinder (27) is rotatably provided with a pulley (30), the pulley (30) is matched with the locking block (26), a third spring (28) is slidably arranged in the fixed cylinder (27), one end of the third spring (28) is abutted with the bottom of the fixed cylinder (27), and the other end of the third spring is abutted with the telescopic rod (29).