CN112881770A

CN112881770A - Electric energy meter capable of automatically maintaining stable contact of electric wire and use method thereof

Info

Publication number: CN112881770A
Application number: CN202110237013.0A
Authority: CN
Inventors: 王悦
Original assignee: Individual
Current assignee: JIANGSU SHENGDE ELECTRIC METER CO Ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-06-01
Anticipated expiration: 2041-03-03
Also published as: CN112881770B

Abstract

The invention discloses an electric energy meter capable of automatically maintaining stable contact of wires and a use method thereof, the electric energy meter comprises an electric energy meter box body, a binding post is fixedly connected on the front side end face of the electric energy meter box body, a wire tension detection mechanism positioned on the right side of the binding post is arranged on the front side end face of the electric energy meter box body, the wire tension detection mechanism reflects the tension borne by the wires at the binding post by detecting the bending inclination degree of the binding post, so that the stability of wire connection can be detected, a wire length adjusting mechanism is arranged on the lower side of the wire tension detection mechanism, and a wire connection mechanism is arranged on the left side of the wire length adjusting mechanism. And power failure detection and maintenance are not required.

Description

Electric energy meter capable of automatically maintaining stable contact of electric wire and use method thereof

Technical Field

The invention relates to the technical field of electric energy meters, in particular to an electric energy meter capable of automatically maintaining stable contact of wires and a using method thereof.

Background

The electric energy meter is an instrument for measuring electric energy, the electric energy meter works for a long time, due to the action of external factors, the tensile force borne by an electric wire is increased, so that the electric wire is loosened in contact with a binding post of the electric energy meter, the contact area of the electric wire and the binding post is reduced, the contact resistance is increased, the heat productivity of a wiring part is increased, the electric energy meter is seriously burnt, accidents are prevented mainly through manual regular detection at present, the power supply needs to be cut off during detection and maintenance, short-time power failure is caused, and the problem is hidden, so that a detector is difficult to find the loosening phenomenon.

Disclosure of Invention

The technical problem is as follows: the problem of looseness in contact between the electric wire and the electric energy meter binding post needs manual regular detection, the problem of looseness is not easy to detect out, and the power supply needs to be cut off in the detection and maintenance process.

In order to solve the problems, the electric energy meter capable of automatically maintaining stable contact of the electric wire is designed in the embodiment, the electric energy meter comprises an electric energy meter box body, a binding post is fixedly connected to the front end face of the electric energy meter box body, two metal guide rods which are bilaterally symmetrical are fixedly connected to the lower end face of the binding post, an electric wire tension detection mechanism positioned on the right side of the binding post is arranged on the front end face of the electric energy meter box body, the electric wire tension detection mechanism can detect the stability of the connection of the electric wire by detecting the bending inclination degree of the binding post to reflect the tension force applied to the electric wire at the connection position, an electric wire length adjusting mechanism is arranged on the lower side of the electric wire tension detection mechanism and is used for accommodating and supplying the electric wire and reducing the damage degree of external force pulling on the connection stability of, the electric wire wiring mechanism can clamp and fix the electric wire again when the electric wire is unstable, so that the electric wire is ensured to be stably connected with a wiring part, the electric wire length adjusting mechanism comprises a rotating shaft six which is rotatably connected to the front end face of the electric energy meter box body and extends forwards, a winding drum is fixedly connected to the rotating shaft six, an one-way bearing positioned on the front side of the winding drum is arranged on the rotating shaft six, a gear four is arranged on the one-way bearing, a fixed table positioned on the upper left side of the rotating shaft six is fixedly connected to the front end face of the electric energy meter box body, a sliding table two is fixedly connected to the right end face of the fixed table, the sliding table two is positioned between the winding drum and the gear four, a first push rod is slidably connected to the front end face of the sliding table two, a second compression spring is fixedly connected to the upper side end face, the sliding table is characterized in that a sliding block is fixedly connected to the end face of the lower side of the push rod, and two fixing blocks which are bilaterally symmetrical are fixedly connected to the end face of the front side of the sliding table.

Preferably, the wire tension detection mechanism comprises a first rotating shaft which is rotatably connected to the front end face of the electric energy meter box body and is positioned on the right lower side of the binding post, a first lever is fixedly connected to the first rotating shaft and is abutted against the lower side end face of the binding post, a first push block is fixedly connected to the upper side end face of the first lever, a seventh rotating shaft which is positioned on the upper side of the first lever is rotatably connected to the front end face of the electric energy meter box body, a second lever is fixedly connected to the seventh rotating shaft and is abutted against the first push block, an L-shaped rod is fixedly connected to the upper side end face of the second lever, a second rotating shaft which is positioned on the upper side of the L-shaped rod is rotatably connected to the front end face of the electric energy meter box body, a third lever is fixedly connected to the second rotating shaft and can be abutted against the L-shaped rod, and a second push block, the electric energy meter box comprises a lever, a piston cylinder, a first piston, a second push block, a first compression spring, a sliding cylinder, a first rack, a third rotating shaft, a first gear, a fourth rotating shaft, a fourth gear, a fourth rotating shaft and a second push block, wherein the piston cylinder is positioned on the upper side of the lever, the piston cylinder is provided with a piston cavity with a downward opening, the piston cavity is connected with the first piston in a sliding manner, the second push block can be abutted against the piston cavity, the first piston is connected with the inner wall of the upper side of the piston cavity, the first piston is connected with the sliding cylinder which is communicated up and down, the sliding cylinder is connected with the second piston in a sliding manner, the first rack is fixedly connected with the end surface of the upper side of the second piston, the rack extends upwards to the end surface of the electric energy meter box, the third rotating shaft, fixedly connected with on the four pivots with gear two that the meshing of gear is connected, it is connected with pivot five that extends forward to rotate on the terminal surface of electric energy meter box front side, fixedly connected with on the five pivots with gear three that the meshing of gear two is connected, fixedly connected with is located on the five pivots the crank of three front sides of gear, fixedly connected with is located on the terminal surface of electric energy meter box front side the slip table one of three downside of gear, sliding connection has rack two on the terminal surface of slip table left side, rack two with it has connecting rod one to articulate between the crank, rack two can with gear four meshes and connects, fixedly connected with contact switch one on the terminal surface of rack two left sides, contact switch one can with the lifter butt.

Preferably, the end face of the front side of the second sliding table is connected with two clamping blocks positioned between the two fixed blocks in a sliding manner, the clamping blocks can clamp and fix the rotating shaft six, thereby locking the rotating shaft six, a connecting rod three is hinged between the clamping block and the sliding block, a compression spring three is connected between the clamping block and the fixed block, an automatic reset cylinder I is fixedly connected on the left side end face of the second sliding table, a one-way valve is arranged on the left side end face of the automatic reset cylinder I, the one-way valve can only intake air from left to right in a one-way, a second push rod extending right is arranged in the first automatic reset cylinder, the second push rod is fixedly connected with the clamping block on the left side, a third sliding table positioned on the lower side of the fourth gear is fixedly connected on the end face of the front side of the electric energy meter box body, and a third rack which is meshed with the fourth gear is connected to the end face of the upper side of the third sliding table in a sliding manner.

Preferably, the wire connection mechanism comprises a lifting platform which is slidably connected to the front end face of the electric energy meter box body, the lifting platform can only move up and down, a connecting rod II is hinged between the lifting platform and the rack III, a metal clamping block I is fixedly connected to the upper end face of the lifting platform, a contact switch II is fixedly connected to the front end face of the metal clamping block I, the metal clamping block I is abutted to the wire, an automatic reset cylinder II which is located on the right side of the metal clamping block I is fixedly connected to the upper end face of the lifting platform, a piston rod I which extends leftwards is arranged in the automatic reset cylinder II, a metal clamping block III which is located on the left side of the automatic reset cylinder II is fixedly connected to the piston rod I, the metal clamping block III can be abutted to the wire, and the contact switch II can be triggered by the metal clamping block III, a three-way electromagnetic valve II is arranged on the end face of the right side of the automatic reset cylinder II, a hose I is communicated and connected between the three-way electromagnetic valve II and the automatic reset cylinder I, a position switch positioned at the upper left side of the metal clamping block I is fixedly connected onto the end face of the front side of the electric energy meter box body, the position switch can be triggered by the metal clamping block I, an air storage box positioned at the right side of the automatic reset cylinder II is fixedly connected onto the end face of the front side of the electric energy meter box body, a hose III is communicated and connected between the air storage box and the automatic reset cylinder II, an automatic reset cylinder III positioned at the upper side of the air storage box is fixedly connected onto the end face of the front side of the electric energy meter box body, a three-way electromagnetic valve I is arranged on the automatic reset cylinder III, a hose II is communicated and connected between the three-way electromagnetic, fixedly connected with is located on the piston rod two metal grip block four on the three left sides of automatic re-setting cylinder, four upside terminal surfaces of metal grip block and right side metal guide arm sliding connection, left fixedly connected with metal grip block two on the metal guide arm downside terminal surface, metal grip block two with the electric wire butt, metal grip block four can with the electric wire butt.

Preferably, the electric wire part is wound on the winding drum, wires are connected between the first metal clamping block and the metal guide rod, the third metal clamping block and the metal guide rod respectively, and the elastic coefficient of the second compression spring is larger than that of the third compression spring, so that the second compression spring is not compressed when the push rod moves downwards to drive the clamping blocks to move horizontally.

A use method of an electric energy meter capable of automatically maintaining stable wire contact comprises the following steps:

initial state: under the action of a compression spring, a piston I is positioned at a lower limit position, a piston II and a rack I are positioned at the lower limit position, a push block II is abutted against the lower end face of the piston to enable a lever III to be positioned at a horizontal position, a lever III is abutted against an L-shaped rod to enable the lever II to be positioned at the horizontal position, the push block I is abutted against a lever II to enable the lever I to be positioned at the horizontal position, the lever I is abutted against the lower end face of a binding post, the rack II is positioned at an upper limit position, under the action of the compression spring III, a clamping block clamps and fixes a rotating shaft VI, a sliding block, a push rod I and a lifting rod are positioned at the upper limit position, the compression spring II is in a non-compression state, a metal clamping block IV, a piston rod II, a piston rod I and a metal clamping block III are positioned at a right limit position, a three-way electromagnetic valve II is not communicated with a hose I, an automatic reset, the metal clamping block IV and the metal clamping block II clamp and fix the electric wire, the metal clamping block III is not abutted against the electric wire, the electric wire positioned on the lifting table and above the lifting table is a part with an insulating layer removed, and the contact switch I is not abutted against the lower side of the lifting rod;

when the tensile force applied to the wires at the connection positions, namely the contact positions of the metal clamping block II and the metal clamping block IV and the wires, is larger due to the influence of external factors, the wires may move downwards relative to the metal clamping block II and the metal clamping block IV, the contact area between the wires and the metal clamping block II and the metal clamping block IV is reduced, so that the contact resistance is increased, the heating value is increased, and the electric energy meter can be burnt out, the wires bend downwards through the metal clamping block II, the metal clamping block IV and the metal guide rod, the binding post drives the rotating shaft I to rotate, the rotating shaft I drives the pushing block I to rotate upwards, the pushing block I drives the lever II to rotate, the lever II drives the L-shaped rod to rotate, the L-shaped rod drives the lever III and the pushing block II to rotate, the pushing block II rotates upwards to push the piston I, the air flow generated by the upward movement of the piston I drives the piston II and the rack I to move upwards, and, the first gear is connected with the second gear in a meshed mode, the second gear is connected with the third gear in a meshed mode, the third gear drives the second rack to move downwards along the first sliding table through the fifth rotating shaft and the fifth connecting rod, multiple displacement amplification movement of bending deformation displacement of the wiring column is achieved, and therefore the fact that the tensile force borne by the wire at the wiring position is reflected through detecting the bending inclination degree of the wiring column is achieved, and the stability of wire connection can be detected;

then the rack II drives the contact switch I to move downwards, the contact switch I is contacted with the lifting rod, the contact switch I enables the three-way electromagnetic valve II to act, the three-way electromagnetic valve II is communicated with the hose I, the contact switch I pushes the lifting rod, the compression spring II, the push rod I and the slide block to move downwards, the slide block drives the clamping block to move towards the side far away from the rotating shaft six through the connecting rod III, so that the clamping block is separated from the rotating shaft six, meanwhile, the clamping block on the left side drives the push rod II to move leftwards, so that air flow generated by the automatic reset cylinder I is conveyed into the automatic reset cylinder II leftwards through the hose I and the three-way electromagnetic valve II, the piston rod I and the metal clamping block III move leftwards when the automatic reset cylinder II works, meanwhile, the air flow in the automatic reset cylinder II is conveyed into the air storage box through the hose III to be, The metal clamping blocks clamp and fix the electric wire together, meanwhile, the metal clamping block three triggers the contact switch two to enable the three-way electromagnetic valve to act, the three-way electromagnetic valve one is communicated with the hose two, compressed air in the air storage tank is conveyed into the automatic reset cylinder three through the hose two and the three-way electromagnetic valve one, the automatic reset cylinder three drives the piston rod two and the metal clamping block four to move right, clamping and fixing of the metal clamping block four and the metal clamping block two pairs of electric wires are released, the electric energy meter is always in a normal power-on working state in the whole movement process because the metal clamping block one and the metal clamping block three can convey electric power through a lead, then the rack two continuously moves downwards, the contact switch drives the lifting rod to move downwards, the compression spring two is compressed, the rack two is meshed with the gear four to drive the gear four to rotate, the gear four drives the rotating shaft six and the winding drum to rotate through a one-way bearing, the gear IV is meshed with the connecting belt to move the rack III to the left, the rack III drives the lifting platform to move upwards through the connecting rod II, the lifting platform drives the metal clamping block III, the metal clamping block I and the electric wire to move upwards for a certain distance, when the metal clamping block I triggers the position switch, the three-way electromagnetic valve acts again to ensure that the three-way electromagnetic valve I is not communicated with the hose II, and the air in the automatic reset cylinder III can be discharged through the three-way electromagnetic valve I, so that the piston rod II and the metal clamping block IV move leftwards and reset, the metal clamping block IV and the metal clamping block II clamp and fix the electric wire again, thereby completing the re-clamping and fixing of the electric wire, leading the clamping area and the clamping force of the second metal clamping block and the fourth metal clamping block to be in a recovery state, avoiding the burning accident caused by the reduction of the contact surface due to the over-large pulling force on the electric wire, thereby ensuring the reliability of clamping and fixing the electric wire and maintaining the stability of the electric wire at the wiring position;

then the three-way electromagnetic valve II acts to ensure that the three-way electromagnetic valve II is not communicated with the hose I and the wire in the automatic reset cylinder II is discharged through the three-way electromagnetic valve II, so that the metal clamping block III and the piston rod I move rightwards to reset, the wire wound by the release part of the winding drum and the metal clamping block are used for clamping and fixing the wire again, the tensile force borne by the wire is reduced, the bending amount of the binding post is reduced, the piston I moves downwards to reset under the action of the compression spring I, the piston II and the rack I move downwards to reset, the lever III, the lever II and the lever I rotate to restore the initial horizontal position, meanwhile, the rack I is connected with the gear I, the gear II and the gear III through meshing to reversely rotate, so that the rack II moves upwards to reset, the compression spring II restores to the initial state, the clamping block moves to reset to one side close to the rotating shaft six side, meanwhile, the clamping block drives the sliding block and the first push rod to move upwards for resetting through the third connecting rod, the clamping block on the left side drives the second push rod to move rightwards for resetting, and the clamping block is fixed to the six clamping portions of the rotating shaft, so that the influence of external force on the electric wire at the wiring position caused by pulling the electric wire on the right side of the winding drum can be reduced, and the stable contact of the electric wire with the second metal clamping block and the fourth metal clamping block is further guaranteed.

The invention has the beneficial effects that: the wire tension detection mechanism can judge the stress condition of the wire at the wiring position according to the deformation condition of the wiring terminals, after the stress of the wire is increased, the wire length adjustment mechanism can release part of the wire stored on the winding drum, so that the wire tension is reduced, the wire connection mechanism can reinstall the inserted wire, so that the contact area of the wire and the wiring position is ensured, the wire is automatically maintained to be stably contacted, the electric energy meter is prevented from being burnt down due to the fact that the wire is not contacted with the wiring terminals of the electric energy meter, manual detection is not needed, the electric energy meter is always in a power-on working state in the working process, and power-off detection maintenance is.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

Fig. 1 is a schematic diagram of an overall structure of an electric energy meter for automatically maintaining stable contact of wires according to the present invention;

FIG. 2 is an enlarged view of the structure at "A" in FIG. 1;

FIG. 3 is an enlarged view of the structure at "B" in FIG. 1;

FIG. 4 is an enlarged view of the structure at "C" of FIG. 1;

FIG. 5 is a schematic view of the structure in the direction "D-D" of FIG. 2;

FIG. 6 is a schematic view of the structure in the direction "E-E" of FIG. 3;

FIG. 7 is a schematic view of the structure in the direction "F-F" of FIG. 4;

FIG. 8 is a schematic view of the structure in the direction "G-G" of FIG. 4.

Detailed Description

The invention will now be described in detail with reference to fig. 1 to 8, for the sake of convenience of description, the following orientations are now defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to an electric energy meter capable of automatically maintaining stable wire contact, which is mainly applied to an electric energy meter, and the invention is further explained by combining the attached drawings of the invention:

the invention relates to an electric energy meter capable of automatically maintaining stable wire contact, which comprises an electric energy meter box body 11, wherein a binding post 12 is fixedly connected on the front side end face of the electric energy meter box body 11, two metal guide rods 53 which are bilaterally symmetrical are fixedly connected on the lower side end face of the binding post 12, a wire tension detection mechanism 101 which is positioned on the right side of the binding post 12 is arranged on the front side end face of the electric energy meter box body 11, the wire tension detection mechanism 101 reflects the tension of a wire 38 at the binding post by detecting the bending inclination degree of the binding post 12 so as to detect the connection stability of the wire 38, a wire length adjusting mechanism 102 is arranged on the lower side of the wire tension detection mechanism 101, the wire length adjusting mechanism 102 is used for accommodating and supplying the wire 38 and can reduce the damage degree of external force pulling on the connection stability at the binding post, and a wire connection mechanism 103, the electric wire wiring mechanism 103 can clamp and fix the electric wire 38 again when the electric wire 38 is unstable in connection, so as to ensure that the electric wire 38 is stable in connection with a wiring part, the electric wire length adjusting mechanism 102 comprises a rotating shaft six 42 which is rotatably connected to the front end face of the electric energy meter box body 11 and extends forwards, a winding drum 40 is fixedly connected to the rotating shaft six 42, a one-way bearing 80 which is positioned on the front side of the winding drum 40 is arranged on the rotating shaft six 42, a gear four 41 is arranged on the one-way bearing 80, a fixed table 75 which is positioned on the upper left side of the rotating shaft six 42 is fixedly connected to the front end face of the electric energy meter box body 11, a sliding table two 39 is fixedly connected to the right end face of the fixed table 75, the sliding table two 39 is positioned between the winding drum 40 and the gear four 41, a first push rod 37 is slidably connected to the front end face of the sliding table two, the upper side of the second compression spring 36 is fixedly connected with a lifting rod 35, the lower side end face of the first push rod 37 is fixedly connected with a sliding block 56, and the front side end face of the second sliding table 39 is fixedly connected with two fixing blocks 61 which are symmetrical left and right.

Beneficially, the wire tension detecting mechanism 101 includes a first rotating shaft 14 rotatably connected to the front end face of the electric energy meter box 11 and located at the lower right side of the terminal 12, a first lever 13 is fixedly connected to the first rotating shaft 14, the first lever 13 abuts against the lower end face of the terminal 12, a first push block 54 is fixedly connected to the upper end face of the first lever 13, a seventh rotating shaft 55 located at the upper side of the first lever 13 is rotatably connected to the front end face of the electric energy meter box 11, a second lever 15 is fixedly connected to the seventh rotating shaft 55, the second lever 15 can abut against the first push block 54, an L-shaped rod 16 is fixedly connected to the upper end face of the second lever 15, a second rotating shaft 17 located at the upper side of the L-shaped rod 16 is rotatably connected to the front end face of the electric energy meter box 11, a third lever 18 is fixedly connected to the second rotating shaft 17, and the third lever 18 can abut against the L-shaped rod, a second push block 58 is fixedly connected to the end face of the upper side of the third lever 18, a piston cylinder 19 located on the upper side of the third lever 18 is fixedly connected to the end face of the front side of the electric energy meter box body 11, a piston cavity 20 with a downward opening is arranged in the piston cylinder 19, a first piston 57 is slidably connected to the piston cavity 20, the second push block 58 can abut against the piston cavity 20, a first compression spring 21 is connected between the first piston 57 and the inner wall of the upper side of the piston cavity 20, a slide cylinder 22 which is vertically communicated is fixedly connected to the end face of the upper side of the piston cylinder 19, a second piston 59 is slidably connected to the slide cylinder 22, a first rack 23 is fixedly connected to the end face of the upper side of the second piston 59, the first rack 23 extends upwards to the outside of the end face of the electric energy meter box body 11, a third rotating shaft 25 located on the right side of the first rack 23 is rotatably connected to the end face of the electric energy meter, the utility model discloses a solar energy meter box, including the electric energy meter box 11, the rotation is connected with the pivot four 27 that extends forward on the terminal surface of the front side of electric energy meter box 11, fixedly connected with on the pivot four 27 with the gear two 26 that the gear 24 meshing is connected, the rotation is connected with the pivot five 28 that extends forward on the terminal surface of the front side of electric energy meter box 11, fixedly connected with on the pivot five 28 with the gear three 31 that the gear two 26 meshing is connected, fixedly connected with on the pivot five 28 is located the crank 29 of the three 31 front sides of gear, fixedly connected with on the terminal surface of the front side of electric energy meter box 11 is located the slip table one 34 of the three 31 downside of gear, sliding connection has rack two 32 on the terminal surface of the left side of slip table one 34, rack two 32 with articulated between the crank 29 have connecting rod one 30, rack two 32 can with the gear four 41 meshing is connected, fixedly connected, the first contact switch 33 can abut against the lifting rod 35.

Beneficially, there are two grip blocks 63 that are located between two fixed blocks 61 on the face of the front side of the second sliding table 39, the grip block 63 can be clamped and fixed the six 42 rotating shafts, thereby locking the six 42 rotating shafts, there are three 60 connecting rods hinged between the grip block 63 and the slider 56, there are three 62 compression springs connected between the grip block 63 and the fixed block 61, there are one automatic reset cylinders 65 fixedly connected on the face of the left side of the second sliding table 39, there are check valves 48 on the face of the left side of the automatic reset cylinders 65, the check valves 48 can only intake air from left to right, there are two push rods 64 extending right in the one automatic reset cylinders 65, the two push rods 64 are fixedly connected with the left grip block 63, there are three 44 sliding tables located on the face of the four 41 lower sides of the gear fixedly connected on the face of the front side of the electric energy meter box 11, and a rack III 43 meshed with the gear IV 41 is connected to the upper end face of the sliding table III 44 in a sliding manner.

Advantageously, the wire connection mechanism 103 comprises an elevating platform 49 slidably connected to the front end face of the electric energy meter box 11, the elevating platform 49 can only move up and down, a second connecting rod 45 is hinged between the elevating platform 49 and the third rack 43, a first metal clamping block 50 is fixedly connected to the upper end face of the elevating platform 49, a second contact switch 69 is fixedly connected to the front end face of the first metal clamping block 50, the first metal clamping block 50 abuts against the electric wire 38, a second automatic reset cylinder 66 located at the right side of the first metal clamping block 50 is fixedly connected to the upper end face of the elevating platform 49, a first piston rod 67 extending leftwards is arranged in the second automatic reset cylinder 66, a third metal clamping block 68 located at the left side of the second automatic reset cylinder 66 is fixedly connected to the first piston rod 67, and the third metal clamping block 68 can abut against the electric wire 38, the third metal clamping block 68 can trigger the second contact switch 69, the second three-way electromagnetic valve 78 is arranged on the right side end face of the second automatic reset cylinder 66, the first three-way electromagnetic valve 78 and the first automatic reset cylinder 65 are communicated and connected with a first hose 46, the front side end face of the electric energy meter box body 11 is fixedly connected with a position switch 51 positioned at the left upper side of the first metal clamping block 50, the first metal clamping block 50 can trigger the position switch 51, the front side end face of the electric energy meter box body 11 is fixedly connected with a gas storage box 47 positioned at the right side of the second automatic reset cylinder 66, the gas storage box 47 and the second automatic reset cylinder 66 are communicated and connected with a third hose 77, the front side end face of the electric energy meter box body 11 is fixedly connected with a third automatic reset cylinder 72 positioned at the upper side of the gas storage box 47, and the first three-way electromagnetic valve 73 is arranged on the third automatic, the three-way electromagnetic valve I73 and the air storage box 47 are connected with a hose II 74 in a communicating mode, a piston rod II 71 extending leftwards is arranged in the automatic reset cylinder III 72, the piston rod II 71 is fixedly connected with a metal clamping block IV 70 positioned on the left side of the automatic reset cylinder III 72, the upper side end face of the metal clamping block IV 70 is in sliding connection with the metal guide rod 53 on the right side, the lower side end face of the metal guide rod 53 on the left side is fixedly connected with a metal clamping block II 52, the metal clamping block II 52 is abutted to the electric wire 38, and the metal clamping block IV 70 can be abutted to the electric wire 38.

Advantageously, the electric wire 38 is partially wound on the winding drum 40, a conducting wire 81 is connected between each of the first metal clamping block 50, the third metal clamping block 68 and the metal guide rod 53, and the elastic coefficient of the second compression spring 36 is greater than that of the third compression spring 62, so that when the first push rod 37 moves downwards to drive the clamping block 63 to move horizontally, the second compression spring 36 is not compressed.

The following describes in detail a method for using an electric energy meter for automatically maintaining stable contact of wires with reference to fig. 1 to 8:

initial state: under the action of the first compression spring 21, the first piston 57 is located at a lower limit position, the second piston 59 and the first rack 23 are located at the lower limit position, the second push block 58 abuts against the lower side end face of the first piston 57, the third lever 18 is located at a horizontal position, the third lever 18 abuts against the L-shaped rod 16, the second lever 15 is located at the horizontal position, the first push block 54 abuts against the second lever 15, the first lever 13 is located at the horizontal position, the first lever 13 abuts against the lower side end face of the binding post 12, the second rack 32 is located at an upper limit position, under the action of the third compression spring 62, the clamping block 63 clamps and fixes the sixth rotating shaft 42, the sliding block 56, the first push rod 37 and the lifting rod 35 are located at the upper limit position, the second compression spring 36 is in a non-compression state, the fourth metal clamping block 70, the second piston rod 71, the first piston rod 67 and the third metal clamping block 68 are located at a right limit position, the second three-way, the first three-way electromagnetic valve 73 is not communicated with the second hose 74, the third automatic reset cylinder 72 can exhaust gas through the first three-way electromagnetic valve 73, the fourth metal clamping block 70 and the second metal clamping block 52 clamp and fix the electric wire 38, the third metal clamping block 68 is not abutted against the electric wire 38, the electric wire 38 positioned above the lifting table 49 and the lifting table 49 is a part without an insulating layer, and the first contact switch 33 is not abutted against the lower side of the lifting rod 35;

when the pulling force applied to the wire 38 at the connection point, i.e. the contact point between the metal clamping block two 52 and the metal clamping block four 70 and the wire 38, is large due to the influence of external factors, the wire 38 may move downward relative to the metal clamping block two 52 and the metal clamping block four 70, the contact area between the wire 38 and the metal clamping block two 52 and the metal clamping block four 70 is reduced, so that the contact resistance is increased, the heat generation amount is increased, and the electric energy meter may be burned, the wire 38 bends the terminal 12 downward through the metal clamping block two 52, the metal clamping block four 70 and the metal guide rod 53, the terminal 12 drives the rotation shaft one 14 to rotate, the rotation shaft one 14 drives the push block one 54 to rotate upward, the push block one 54 drives the lever two 15 to rotate, the lever two 15 drives the L-shaped rod 16 to rotate, the L-shaped rod 16 drives the lever three 18 and the push block two 58 to rotate, the push block two 58 rotates upward to, the air flow generated by the upward movement of the first piston 57 drives the second piston 59 and the first rack 23 to move upwards, the first rack 23 is connected with the first gear 24 through meshing, the first gear 24 is connected with the second gear 26 through meshing, the second gear 26 is connected with the third gear 31 through meshing, the third gear 31 drives the second rack 32 to move downwards along the first sliding table 34 through the fifth rotating shaft 28 and the first connecting rod 30, multiple displacement amplification movements of bending deformation displacement of the binding post 12 are achieved, the tensile force borne by the wire 38 at the binding post is reflected by detecting the bending inclination degree of the binding post 12, and the connection stability of the wire 38 can be detected;

then the rack II 32 drives the contact switch I33 to move downwards, the contact switch I33 is contacted with the lifting rod 35, the contact switch I33 enables the three-way electromagnetic valve II 78 to act, the three-way electromagnetic valve II 78 is communicated with the hose I46, then the contact switch I33 pushes the lifting rod 35, the compression spring II 36, the push rod I37 and the slide block 56 to move downwards, the slide block 56 drives the clamping block 63 to move towards one side far away from the rotating shaft six 42 through the connecting rod III 60, so that the clamping block 63 is separated from the rotating shaft six 42, meanwhile, the clamping block 63 on the left side drives the push rod II 64 to move leftwards, air flow generated by the automatic reset cylinder I65 is conveyed to the left inside the automatic reset cylinder II 66 through the hose I46 and the three-way electromagnetic valve II 78, when the automatic reset cylinder II 66 works, the piston rod I67 and the metal clamping block III 68 move leftwards, and meanwhile, air flow in the, when the metal clamping block III 68 moves to be in contact with the metal clamping block I50, the metal clamping block III 68 and the metal clamping block I50 clamp and fix the electric wire 38 together, meanwhile, the metal clamping block III 68 triggers the contact switch II 69 to enable the three-way electromagnetic valve I73 to act, the three-way electromagnetic valve I73 is communicated with the hose II 74, compressed air in the air storage tank 47 is conveyed into the automatic reset cylinder III 72 through the hose II 74 and the three-way electromagnetic valve I73, the automatic reset cylinder III 72 drives the piston rod II 71 and the metal clamping block IV 70 to move right, clamping and fixing of the electric wire 38 by the metal clamping block IV 70 and the metal clamping block II 52 are released, the electric energy meter is always in a normal power-on working state in the whole movement process because the metal clamping block I50 and the metal clamping block III 68 can convey electric power through the wire 81, then the rack II 32 continues to move downwards, and the contact switch I33 drives the lifting rod, the second compression spring 36 is compressed, the second rack 32 is meshed with the fourth gear 41 to drive the fourth gear 41 to rotate, the fourth gear 41 drives the sixth rotating shaft 42 and the winding drum 40 to rotate through the one-way bearing 80, part of the electric wire 38 wound on the winding drum 40 is released from the winding drum 40, the fourth gear 41 drives the third rack 43 to move leftwards through meshing connection, the third rack 43 drives the lifting platform 49 to move upwards through the second connecting rod 45, the lifting platform 49 drives the third metal clamping block 68, the first metal clamping block 50 and the electric wire 38 to move upwards for a certain distance, after the first metal clamping block 50 triggers the position switch 51, the first three-way electromagnetic valve 73 acts again to enable the first three-way electromagnetic valve 73 to be not communicated with the second hose 74, air in the third automatic reset air cylinder 72 can be discharged through the first three-way electromagnetic valve 73 to enable the second piston rod 71 and the fourth metal clamping block 70 to move leftwards to be reset, the fourth metal clamping, the electric wire 38 is clamped and fixed again, so that the clamping area and the clamping force of the second metal clamping block 52 and the fourth metal clamping block 70 on the electric wire 38 are restored, the burning accident caused by the reduction of the contact surface due to the over-large pulling force applied to the electric wire 38 is avoided, the reliability of clamping and fixing the electric wire 38 is ensured, and the stability of the electric wire 38 at the wiring position is maintained;

then the three-way electromagnetic valve II 78 acts to make the three-way electromagnetic valve II 78 not communicated with the hose I46, and the wire 38 wound by the releasing part of the winding drum 40 and the metal clamping block II 52 re-clamp and fix the wire 38, so that the tensile force applied to the wire 38 is reduced, the bending amount of the binding post 12 is reduced, the piston I57 moves downwards to reset under the action of the compression spring I21, the piston II 59 and the rack I23 move downwards to reset, the lever III 18, the lever II 15 and the lever I13 rotate to restore the initial horizontal position, meanwhile, the rack I23 is connected with the gear I24, the gear II 26 and the gear III 31 through meshing, so that the rack II 32 moves upwards to reset, the compression spring II 36 restores the initial state, under the action of the compression spring III 62, the clamping block 63 moves to one side close to the six 42 rotating shafts to reset, the clamping block 63 clamps the six 42 rotating shafts again, meanwhile, the clamping block 63 drives the sliding block 56 through the third connecting rod 60, the first push rod 37 moves upwards to reset, the left clamping block 63 drives the second push rod 64 to move rightwards to reset, the clamping block 63 clamps the six 42 rotating shafts to fix, the influence of external force on the electric wire 38 at the joint through pulling the electric wire 38 on the right side of the winding drum 40 can be reduced, and therefore the contact stability of the electric wire 38 with the second metal clamping block 52 and the fourth metal clamping block 70 is further guaranteed.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims

1. The utility model provides an automatic maintain stable electric energy meter of electric wire contact, includes the electric energy meter box, its characterized in that: the electric energy meter box comprises an electric energy meter box body, a binding post is fixedly connected to the end face of the front side of the electric energy meter box body, two metal guide rods which are bilaterally symmetrical are fixedly connected to the end face of the lower side of the binding post, an electric wire tension detection mechanism which is positioned on the right side of the binding post is arranged on the end face of the front side of the electric energy meter box body, the electric wire tension detection mechanism reflects the tension of an electric wire at a junction through detecting the bending inclination degree of the binding post so as to detect the stability of the electric wire connection, an electric wire length adjusting mechanism is arranged on the lower side of the electric wire tension detection mechanism and is used for accommodating and supplying the electric wire and reducing the damage degree of the connection stability of the junction due to external force pulling, an electric wire wiring mechanism is arranged on the left side of the electric wire length adjusting mechanism, the electric wire length adjusting mechanism comprises a rotating shaft six which is rotatably connected to the end face of the front side of the electric energy meter box body and extends forwards, a winding drum is fixedly connected on the rotating shaft six, a one-way bearing positioned on the front side of the winding drum is arranged on the rotating shaft six, a gear four is arranged on the one-way bearing, a fixed platform positioned at the upper left side of the rotating shaft is fixedly connected on the end surface of the front side of the electric energy meter box body, a second sliding table is fixedly connected to the end face of the right side of the fixed table and is positioned between the winding drum and the fourth gear, the end surface of the front side of the second sliding table is connected with a first push rod in a sliding way, the end surface of the upper side of the first push rod is fixedly connected with a second compression spring, the two upper sides of the compression spring are fixedly connected with a lifting rod, a sliding block is fixedly connected to the lower end face of the push rod, and two fixed blocks which are bilaterally symmetrical are fixedly connected to the front end face of the sliding table.

2. An electric energy meter for automatically maintaining stable wire contact according to claim 1, wherein: the wire tension detection mechanism comprises a first rotating shaft which is rotatably connected to the front end face of the electric energy meter box body and is positioned on the right lower side of the binding post, a first lever is fixedly connected to the first rotating shaft and is abutted against the lower side end face of the binding post, a first push block is fixedly connected to the upper side end face of the first lever, a seventh rotating shaft which is positioned on the upper side of the first lever is rotatably connected to the front end face of the electric energy meter box body, a second lever is fixedly connected to the seventh rotating shaft and is abutted against the first push block, an L-shaped rod is fixedly connected to the upper side end face of the second lever, a second rotating shaft which is positioned on the upper side of the L-shaped rod is rotatably connected to the front end face of the electric energy meter box body, a third lever is fixedly connected to the second rotating shaft and is abutted against the L-shaped rod, and a second push, the electric energy meter box comprises a lever, a piston cylinder, a first piston, a second push block, a first compression spring, a sliding cylinder, a first rack, a third rotating shaft, a first gear, a fourth rotating shaft, a fourth gear, a fourth rotating shaft and a second push block, wherein the piston cylinder is positioned on the upper side of the lever, the piston cylinder is provided with a piston cavity with a downward opening, the piston cavity is connected with the first piston in a sliding manner, the second push block can be abutted against the piston cavity, the first piston is connected with the inner wall of the upper side of the piston cavity, the first piston is connected with the sliding cylinder which is communicated up and down, the sliding cylinder is connected with the second piston in a sliding manner, the first rack is fixedly connected with the end surface of the upper side of the second piston, the rack extends upwards to the end surface of the electric energy meter box, the third rotating shaft, fixedly connected with on the four pivots with gear two that the meshing of gear is connected, it is connected with pivot five that extends forward to rotate on the terminal surface of electric energy meter box front side, fixedly connected with on the five pivots with gear three that the meshing of gear two is connected, fixedly connected with is located on the five pivots the crank of three front sides of gear, fixedly connected with is located on the terminal surface of electric energy meter box front side the slip table one of three downside of gear, sliding connection has rack two on the terminal surface of slip table left side, rack two with it has connecting rod one to articulate between the crank, rack two can with gear four meshes and connects, fixedly connected with contact switch one on the terminal surface of rack two left sides, contact switch one can with the lifter butt.

3. An electric energy meter for automatically maintaining stable wire contact according to claim 2, wherein: the end face of the front side of the second sliding table is connected with two clamping blocks positioned between the two fixing blocks in a sliding way, the clamping blocks can clamp and fix the rotating shaft six, thereby locking the rotating shaft six, a connecting rod three is hinged between the clamping block and the sliding block, a compression spring three is connected between the clamping block and the fixed block, an automatic reset cylinder I is fixedly connected on the left side end face of the second sliding table, a one-way valve is arranged on the left side end face of the automatic reset cylinder I, the one-way valve can only intake air from left to right in a one-way, a second push rod extending right is arranged in the first automatic reset cylinder, the second push rod is fixedly connected with the clamping block on the left side, a third sliding table positioned on the lower side of the fourth gear is fixedly connected on the end face of the front side of the electric energy meter box body, and a third rack which is meshed with the fourth gear is connected to the end face of the upper side of the third sliding table in a sliding manner.

4. An electric energy meter for automatically maintaining stable wire contact according to claim 3, wherein: the wire connection mechanism comprises a lifting platform which is connected to the front end face of the electric energy meter box body in a sliding mode, the lifting platform can only move up and down, a connecting rod II is hinged between the lifting platform and the rack III, a metal clamping block I is fixedly connected to the upper end face of the lifting platform, a contact switch II is fixedly connected to the front end face of the metal clamping block I, the metal clamping block I is abutted to the wire, an automatic reset cylinder II which is located on the right side of the metal clamping block I is fixedly connected to the upper end face of the lifting platform, a piston rod I which extends leftwards is arranged in the automatic reset cylinder II, a metal clamping block III which is located on the left side of the automatic reset cylinder II is fixedly connected to the piston rod I, the metal clamping block III can be abutted to the wire, the contact switch II can be triggered by the metal clamping block III, and a three-way electromagnetic valve II is arranged on the, the automatic resetting device comprises an automatic resetting cylinder I, a three-way electromagnetic valve II, a hose I, a position switch, a gas storage box, a hose III, a piston rod II, a metal clamping block IV and a metal clamping block IV, wherein the hose I is communicated and connected between the three-way electromagnetic valve II and the automatic resetting cylinder I, the position switch is positioned at the left upper side of the metal clamping block I, the metal clamping block I can trigger the position switch, the gas storage box is fixedly connected to the front side end face of the electric energy meter box body, the gas storage box is positioned at the right side of the automatic resetting cylinder II, the hose III is communicated and connected between the gas storage box and the gas storage box, the automatic resetting cylinder III is fixedly connected with the automatic resetting cylinder III, the automatic resetting cylinder III is internally provided with the piston rod II which extends leftwards, the piston rod II is fixedly connected with the metal clamping block IV, the metal clamping block IV is positioned, the metal guide rod on the right side is connected with the metal clamping block in a sliding mode, the metal clamping block on the left side is fixedly connected with a metal clamping block II on the end face of the lower side of the metal guide rod, the metal clamping block II is abutted to the electric wire, and the metal clamping block IV can be abutted to the electric wire.

5. An electric energy meter for automatically maintaining stable wire contact according to claim 4, wherein: the electric wire part is wound on the winding drum, wires are connected between the first metal clamping block and the third metal clamping block and the metal guide rod respectively, and the elastic coefficient of the second compression spring is larger than that of the third compression spring, so that when the push rod moves downwards to drive the clamping blocks to move horizontally, the second compression spring is not compressed.

6. The use method of the electric energy meter capable of automatically maintaining the stable contact of the electric wire according to claim 5, wherein: