CN109828138B - A general purpose measuring instrument for electric shock prevention of power maintenance - Google Patents
A general purpose measuring instrument for electric shock prevention of power maintenance Download PDFInfo
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- CN109828138B CN109828138B CN201910127339.0A CN201910127339A CN109828138B CN 109828138 B CN109828138 B CN 109828138B CN 201910127339 A CN201910127339 A CN 201910127339A CN 109828138 B CN109828138 B CN 109828138B
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Abstract
The invention relates to an electric shock prevention universal measuring instrument for power maintenance, which comprises a meter shell and two measuring devices, wherein each measuring device comprises a storage box and a measuring mechanism, a cable and the storage mechanism are arranged in the storage box, the storage mechanism comprises a translation component, a translation plate, a plurality of first sleeves and a plurality of second sleeves, each measuring mechanism comprises a driving component, an insulating pipe and a sealing component, each driving component comprises a first air cylinder, a first piston, a first spring, a pressing plate and a connecting rod, a second air cylinder, a second piston and a meter pen are arranged in each insulating pipe, the electric shock prevention universal measuring instrument for power maintenance can conveniently store the cable into the storage box through the storage mechanism so as to facilitate the arrangement and storage of equipment, and can also draw the cable out of the storage box so as to facilitate the measurement and the use, in the measuring mechanism, an electrician can manually press the pressing plate through the insulating pipe to enable the meter pen to extend out of the insulating pipe, avoid taking place the electric shock to detect the precision has been guaranteed, thereby improved this universal meter's practicality.
Description
Technical Field
The invention relates to the field of electrical equipment, in particular to an electric shock prevention universal measuring instrument for power maintenance.
Background
The multimeter is a common tool for electricians, can be used for measuring various parameters such as voltage, resistance and current, is sometimes called as a three-purpose meter, is often used in the fields of experiments, installation and maintenance of power equipment and the like, and is quite wide in application range.
An existing multimeter generally comprises a meter and two test pens, wherein the test pens are connected with the meter through a test pen connecting line, and then signal measurement is carried out through contact between the two test pens and a detection point. But in the use, receive the length restriction of pen-shape metre line, two pen-shape metres can't contact the measurement to the check point far away apart, some universal meters are in order to overcome this difficulty, can be generally with pen-shape metre line extension, but make two line windings so easily, the arrangement of accomodating of universal meter not convenient for, moreover, the nib of two pen-shape metres of universal meter mostly is for the metal pointer for exposing, in the measurement process, the nib of pen-shape metre is touched easily at the finger position, the measurement accuracy of universal meter has been reduced, can also lead to the user of service to electrocute when serious, and then the practicality that has caused current exterior table reduces.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the universal measuring instrument for electric shock prevention for power maintenance is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a universal measuring instrument for electric shock prevention for power maintenance comprises a meter shell and two measuring devices, wherein the two measuring devices are respectively positioned on two sides of the meter shell, a PLC is arranged in the meter shell, a display screen, a knob and a switch are arranged on the meter shell, the measuring devices comprise a storage box and a measuring mechanism, the storage box is fixed on the meter shell, a key is arranged on the storage box, a cable and a storage mechanism are arranged in the storage box, one end of the cable is connected with the meter shell, the other end of the cable is connected with the measuring mechanism, and the key, the knob and the display screen are all electrically connected with the PLC;
the containing mechanism comprises a translation assembly, a translation plate, a plurality of first sleeves and a plurality of second sleeves, the translation assembly is in transmission connection with the translation plate, the translation plate is fixedly connected with one inner wall, perpendicular to the side face of the watchcase, of the containing box, the first sleeves are uniformly distributed on the inner wall of one side, far away from the translation plate, of the containing box, the second sleeves are uniformly distributed on one side, close to the first sleeves, of the translation plate, the number of the first sleeves is equal to that of the second sleeves, the cable is located between the first sleeves and the second sleeves, and the cable sequentially penetrates through the first sleeves and the second sleeves;
the measuring mechanism comprises a driving assembly, an insulating tube and a sealing assembly, the driving assembly comprises a first air cylinder, a first piston, a first spring, a pressing plate and a connecting rod, the first air cylinder is fixed on the insulating tube, the periphery of the first piston is connected with the inner wall of the first air cylinder in a sealing mode, the first piston is connected with the bottom of the first air cylinder through the first spring, the pressing plate is fixedly connected with the first piston through the connecting rod, a second air cylinder, a second piston and a meter pen are arranged in the insulating tube, the second air cylinder is communicated with the first air cylinder, the second air cylinder is fixed in the insulating tube, the periphery of the second piston is connected with the inner wall of the second air cylinder in a sealing mode, the meter pen is fixed on one side, far away from the bottom of the second air cylinder, of the second piston, the meter pen is connected with a cable, and the first spring is in a compression state.
Preferably, in order to drive the translation plate to move, the translation assembly comprises a motor, a bearing and a screw rod, the motor and the bearing are both fixed in the storage box, the motor is in transmission connection with one end of the screw rod, the other end of the screw rod is arranged in the bearing, the translation plate is sleeved on the screw rod, and a thread matched with the screw rod is arranged at the joint of the translation plate and the screw rod.
Preferably, in order to realize the stable movement of the translation plate, a plurality of rollers are arranged on one side of the translation plate, which is far away from the second sleeve, and the diameter of each roller is the same as the thickness of the storage box.
Preferably, in order to realize the smooth movement of the connecting rod, a fixing ring is arranged in the first cylinder, the fixing ring is fixed on the inner wall of the first cylinder, and the fixing ring is sleeved on the connecting rod.
Preferably, in order to facilitate the sealing protection of the insulating tube, the sealing assembly comprises a sealing plate and two sealing units, the sealing plate is covered on the insulating tube, the two sealing units are respectively positioned above and below one side, close to the insulating tube, of the sealing plate, the sealing units comprise a pull rod, a second spring, a sleeve ring and a convex shaft, the convex shaft is fixed on the insulating tube, the sleeve ring is sleeved on the convex shaft, the sleeve ring is connected with one end of the pull rod through the second spring, the other end of the pull rod is fixed on the sealing plate, and the second spring is in a stretching state.
Preferably, in order to prevent the lantern ring from being separated from the protruding shaft, one end of the protruding shaft, which is far away from the insulating tube, is provided with a protruding plate.
Preferably, in order to fix the position of the sealing plate, the sealing unit further includes an insertion rod and an insertion ring, the insertion ring is fixed to the insulating tube, the insertion rod is fixed to the sealing plate, and the insertion ring is sleeved on the insertion rod.
Preferably, in order to facilitate the insertion rod to pass through the insertion ring, one end of the insertion rod far away from the sealing plate is shaped like a hemisphere.
Preferably, in order to facilitate driving the sealing plate to move, a pull ring is arranged at one end of the sealing plate, which is far away from the insulating tube.
Preferably, in order to output the alarm signal, a loudspeaker is further arranged on the watch case, and the loudspeaker is electrically connected with the PLC.
The electric shock prevention universal measuring instrument for power maintenance has the advantages that cables are conveniently stored in the storage box through the storage mechanism, the cables can be drawn out of the storage box, and the electric shock prevention universal measuring instrument is convenient to measure and use.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of the structure of the electric shock resistant universal measuring instrument for power maintenance of the present invention;
FIG. 2 is a cross-sectional view of a receiver for an electric shock resistant universal meter for power maintenance of the present invention;
FIG. 3 is a schematic diagram of the measuring mechanism of the electric shock resistant universal meter for power maintenance of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
in the figure: 1. the watch comprises a watch case, 2, a display screen, 3, a knob, 4, a switch, 5, a storage box, 6, a key, 7, a loudspeaker, 8, a translation plate, 9, a first sleeve, 10, a second sleeve, 11, an insulating tube, 12, a first cylinder, 13, a first piston, 14, a first spring, 15, a pressing plate, 16, a connecting rod, 17, a second cylinder, 18, a second piston, 19, a gauge pen, 20, a motor, 21, a bearing, 22, a lead screw, 23, a roller, 24, a fixing ring, 25, a sealing plate, 26, a pull rod, 27, a second spring, 28, a collar, 29, a protruding shaft, 30, a protruding plate, 31, a plug rod, 32, a plug ring, 33, a pull ring and 34.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, an electric shock preventing universal measuring instrument for power maintenance comprises a meter case 1 and two measuring devices, wherein the two measuring devices are respectively positioned at two sides of the meter case 1, a PLC is arranged in the meter case 1, a display screen 2, a knob 3 and a switch 4 are arranged on the meter case 1, the measuring devices comprise a storage box 5 and a measuring mechanism, the storage box 5 is fixed on the meter case 1, a key 6 is arranged on the storage box 5, a cable 34 and a storage mechanism are arranged in the storage box 5, one end of the cable 34 is connected with the meter case 1, the other end of the cable 34 is connected with the measuring mechanism, and the key 6, the knob 3 and the display screen 2 are all electrically connected with the PLC;
electrician is when using this external application table to measure, press button 6 on the receiver 5 of 1 both sides of watchcase, receiving mechanism in the receiver 5 moves, be convenient for prolong the length of cable 34, operation knob 3 on watchcase 1, select measurement function, press switch 4, after being connected two measuring mechanism and measuring point, can show measuring result through display screen 2, after finishing using, press button 6 once more, receiving mechanism moves, in receiving box 5 is accomodate into to unnecessary cable 34 that will expose, the arrangement of this universal meter of being convenient for is deposited.
As shown in fig. 2, the containing mechanism comprises a translation assembly, a translation plate 8, a plurality of first sleeves 9 and a plurality of second sleeves 10, the translation assembly is in transmission connection with the translation plate 8, the translation plate 8 is fixedly connected with the inner wall of one of the containing boxes 5 perpendicular to the side surface of the watch case 1, the first sleeves 9 are uniformly distributed on the inner wall of the containing box 5 on the side far away from the translation plate 8, the second sleeves 10 are uniformly distributed on the side of the translation plate 8 close to the first sleeves 9, the number of the first sleeves 9 is equal to the number of the second sleeves 10, the cable 34 is positioned between the first sleeves 9 and the second sleeves 10, and the cable 34 sequentially passes through each first sleeve 9 and each second sleeve 10;
in the receiver 5, the steerable translation subassembly of PLC control translation board 8 removes, make translation board 8 be close to or keep away from first sleeve pipe 9 and remove, thereby increase or reduce the distance between first sleeve pipe 9 and the second sleeve pipe 10, when the distance between first sleeve pipe 9 and the second sleeve pipe 10 increases, can accomodate cable 34 into receiver 5, the arrangement of the universal meter of being convenient for is deposited, after the distance between first sleeve pipe 9 and the second sleeve pipe 10 is reduced, electrician's personnel can take cable 34 out from receiver 5, be convenient for enlarge measuring mechanism's home range, convenient measurement.
As shown in fig. 3, the measuring mechanism includes a driving assembly, an insulating tube 11 and a sealing assembly, the driving assembly includes a first cylinder 12, a first piston 13, a first spring 14, a pressure plate 15 and a connecting rod 16, the first cylinder 12 is fixed on the insulating tube 11, the outer periphery of the first piston 13 is connected with the inner wall of the first cylinder 12 in a sealing manner, the first piston 13 is connected with the bottom inside the first cylinder 12 through the first spring 14, the pressure plate 15 is fixedly connected with the first piston 13 through the connecting rod 16, a second cylinder 17, a second piston 18 and a meter pen 19 are arranged inside the insulating tube 11, the second cylinder 17 is communicated with the first cylinder 12, the second cylinder 17 is fixed inside the insulating tube 11, the outer periphery of the second piston 18 is connected with the inner wall of the second cylinder 17 in a sealing manner, the meter pen 19 is fixed on the side of the second piston 18 away from the bottom of the second cylinder 17, the stylus 19 is connected to the cable 34 and the first spring 14 is in a compressed state.
When using measuring mechanism to measure, electrician's accessible seal assembly opens the opening of insulating tube 11, hold insulating tube 11 back, press down clamp plate 15, it is close to the removal to the bottom in the first cylinder 12 to drive first piston 13 through connecting rod 16, compress first spring 14, thereby make the air in the first cylinder 12 flow to in the second cylinder 17 in the insulating tube 11, make the inner wall that second piston 18 kept away from second cylinder 17 remove, and then promote the movement of pen-shape metre 19, make pen-shape metre 19 stretch out insulating tube 11, and then can measure pen-shape metre 19 is close to the measuring point, because electrician's hand breaks away from pen-shape metre 19 during the measurement, do not contact with pen-shape metre 19, thereby can prevent electrician's electric shock, guarantee the measuring precision simultaneously. After the measurement is finished, electrician loosens the pressing plate 15, the first spring 14 compressed at this time pushes the first piston 13 to move away from the bottom in the first cylinder 12 for recovering deformation, so that the connecting rod 16 drives the pressing plate 15 to reset, in the second cylinder 17, the second piston 18 moves close to the bottom in the second cylinder 17, so that the meter pen 19 is put into the insulating tube 11, and then the sealing protection of the meter pen 19 can be carried out at the opening of the insulating tube 11 through the sealing component.
As shown in fig. 2, the translation subassembly includes motor 20, bearing 21 and lead screw 22, motor 20 and bearing 21 are all fixed in receiver 5, motor 20 is connected with the one end transmission of lead screw 22, the other end setting of lead screw 22 is in bearing 21, translation board 8 cover is established on lead screw 22, translation board 8 is equipped with the screw thread that matches with lead screw 22 with the junction of lead screw 22.
The PLC controls the motor 20 to start, drives the screw rod 22 to rotate under the supporting action of the bearing 21, and the screw rod 22 acts on the translation plate 8 through threads, so that the translation plate 8 moves along the axial direction of the screw rod 22.
Preferably, in order to realize the smooth movement of the translating plate 8, the side of the translating plate 8 far from the second sleeve 10 is provided with a plurality of rollers 23, and the diameter of the rollers 23 is the same as the thickness in the storage box 5. The inner walls of the upper side and the lower side of the storage box 5 are abutted through the rollers 23, so that the screw rod 22 is prevented from rotating, the translation plate 8 is driven to rotate, the rollers 23 move in the storage box 5, and the smooth movement of the translation plate 8 is facilitated.
Preferably, in order to realize the smooth movement of the connecting rod 16, a fixing ring 24 is arranged in the first cylinder 12, the fixing ring 24 is fixed on the inner wall of the first cylinder 12, and the fixing ring 24 is sleeved on the connecting rod 16. The moving direction of the connecting rod 16 is fixed by the fixing ring 24 fixed in the first cylinder 12, and smooth movement of the connecting rod 16 is achieved.
Preferably, in order to facilitate the sealing protection of the insulating tube 11, the sealing assembly includes a sealing plate 25 and two sealing units, the sealing plate 25 covers the insulating tube 11, the two sealing units are respectively located above and below one side of the sealing plate 25 close to the insulating tube 11, the sealing units include a pull rod 26, a second spring 27, a collar 28 and a protruding shaft 29, the protruding shaft 29 is fixed on the insulating tube 11, the collar 28 is sleeved on the protruding shaft 29, the collar 28 is connected with one end of the pull rod 26 through the second spring 27, the other end of the pull rod 26 is fixed on the sealing plate 25, and the second spring 27 is in a stretching state.
In the seal assembly, the opening of the insulating tube 11 can be blocked by the seal plate 25, the internal meter pen 19 is isolated and protected, when the meter pen 19 is used for measurement, the insulating tube 11 is exposed for the convenience of the meter pen 19, at the moment, the seal plate 25 can be pulled to move away from the insulating tube 11, the second spring 27 is further stretched, then the seal plate 25 is rotated, the seal plate 25 is separated from the opening of the insulating tube 11, after the use is finished, the seal plate 25 is pulled, the second sleeve ring 28 is further stretched by the pull rod 26, under the supporting action of the protruding shaft 29, the sleeve ring 28 rotates along the protruding shaft 29, after the seal plate 25 is aligned with the opening of the insulating tube 11, the seal plate 25 is loosened, at the moment, the stretched second spring 27 is in order to restore the deformation, the pull rod 26 is close to the insulating tube 11, the seal plate 25 abuts against the insulating tube 11, and the internal meter pen.
Preferably, in order to prevent the collar 28 from disengaging from the protruding shaft 29, the protruding shaft 29 is provided with a protruding plate 30 at an end thereof away from the insulating tube 11. Since the collar 28 cannot pass the protruding plate 30, the collar 28 is restrained on the protruding shaft 29, and the collar 28 is prevented from being disengaged from the protruding shaft 29.
Preferably, in order to fix the position of the sealing plate 25, the sealing unit further includes an insert rod 31 and an insert ring 32, the insert ring 32 is fixed on the insulating tube 11, the insert rod 31 is fixed on the sealing plate 25, and the insert ring 32 is sleeved on the insert rod 31.
When the sealing plate 25 is loosened after the insertion rod 31 is aligned with the insertion ring 32, the second spring 27 pulls the sealing plate 25 close to the insulating tube 11 by the pull rod 26, and the insertion rod 31 passes through the insertion ring 32, thereby further reinforcing the sealing plate 25 and preventing the sealing plate 25 from sliding and separating from the opening of the insulating tube 11.
Preferably, in order to facilitate the insertion rod 31 to pass through the insertion ring 32, an end of the insertion rod 31 remote from the sealing plate 25 is formed in a hemispherical shape. The hemispherical design reduces the size of the end of the insert rod 31 remote from the sealing plate 25, thereby facilitating the insertion of the insert rod 31 through the insert ring 32 to reinforce the sealing plate 25.
Preferably, in order to facilitate the movement of the sealing plate 25, a pulling ring 33 is disposed at one end of the sealing plate 25 away from the insulating tube 11. The pulling ring 33 facilitates the movement and rotation of the sealing plate 25.
Preferably, in order to output the alarm signal, a loudspeaker 7 is further arranged on the watch case 1, and the loudspeaker 7 is electrically connected with the PLC. When the danger signal is detected, the PLC controls the loudspeaker 7 to sound to warn electricians.
This universal meter is when using, translation subassembly in the receiver 5 can drive the removal of translation board 8, adjust the distance between first sleeve 9 and the second sleeve 10, when the distance between first sleeve 9 and the second sleeve 10 increases, can accomodate into receiver 5 with cable 34, make things convenient for the arrangement of equipment to deposit, and the distance of first sleeve 9 and second sleeve 10 reduces the back, can take out cable 34 from receiver 5, enlarge measuring mechanism's home range, be convenient for measure, moreover, in the measurement process, through opening seal assembly after, electrician's hand holds insulating tube 11, press clamp plate 15, can make pen-shape metre 19 stretch out insulating tube 11 and measure, avoid taking place the electric shock, and guaranteed the detection precision, thereby the practicality of this universal meter has been improved.
Compared with the prior art, this a general purpose measuring instrument for electric shock prevention for power maintenance passes through receiving mechanism and conveniently accomodates cable 34 into receiver 5 in the arrangement of the equipment of being convenient for deposit, also can take cable 34 out from receiver 5, the measurement of being convenient for is used, moreover, among the measuring mechanism, electrician's hand is held insulating tube 11 and is pressed clamp plate 15, can make pen-shape metre 19 stretch out insulating tube 11 and measure, avoid taking place the electric shock, and guaranteed the detection precision, thereby the practicality of this universal meter has been improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a general-purpose measuring instrument of protection against electric shock for power maintenance, its characterized in that includes watchcase (1) and two measuring device, two measuring device are located the both sides of watchcase (1) respectively, be equipped with PLC in watchcase (1), be equipped with display screen (2), knob (3) and switch (4) on watchcase (1), measuring device includes receiver (5) and measuring mechanism, receiver (5) are fixed on watchcase (1), be equipped with button (6) on receiver (5), be equipped with cable (34) and receiving mechanism in receiver (5), one end of cable (34) is connected with watchcase (1), the other end of cable (34) is connected with measuring mechanism, button (6), knob (3) and display screen (2) all are connected with PLC electricity;
the containing mechanism comprises a translation assembly, a translation plate (8), a plurality of first sleeves (9) and a plurality of second sleeves (10), the translation assembly is in transmission connection with the translation plate (8), the translation plate (8) is fixedly connected with the inner wall of one of the containing boxes (5) perpendicular to the side surface of the watch case (1), the first sleeves (9) are uniformly distributed on the inner wall of one side, far away from the translation plate (8), of the containing box (5), the second sleeves (10) are uniformly distributed on one side, close to the first sleeves (9), of the translation plate (8), the number of the first sleeves (9) is equal to that of the second sleeves (10), the cable (34) is located between the first sleeves (9) and the second sleeves (10), and the cable (34) sequentially penetrates through each first sleeve (9) and each second sleeve (10);
the measuring mechanism comprises a driving assembly, an insulating pipe (11) and a sealing assembly, the driving assembly comprises a first cylinder (12), a first piston (13), a first spring (14), a pressing plate (15) and a connecting rod (16), the first cylinder (12) is fixed on the insulating pipe (11), the periphery of the first piston (13) is in sealing connection with the inner wall of the first cylinder (12), the first piston (13) is connected with the bottom in the first cylinder (12) through the first spring (14), the pressing plate (15) is fixedly connected with the first piston (13) through the connecting rod (16), a second cylinder (17), a second piston (18) and a gauge pen (19) are arranged in the insulating pipe (11), the second cylinder (17) is communicated with the first cylinder (12), the second cylinder (17) is fixed in the insulating pipe (11), the periphery of the second piston (18) is in sealing connection with the inner wall of the second cylinder (17), the gauge pen (19) is fixed on one side of the second piston (18) far away from the bottom of the second cylinder (17), the gauge pen (19) is connected with a cable (34), and the first spring (14) is in a compressed state;
the sealing assembly comprises a sealing plate (25) and two sealing units, wherein the sealing plate (25) is covered on an insulating tube (11), the two sealing units are respectively positioned above and below one side, close to the insulating tube (11), of the sealing plate (25), each sealing unit comprises a pull rod (26), a second spring (27), a sleeve ring (28) and a convex shaft (29), the convex shaft (29) is fixed on the insulating tube (11), the sleeve ring (28) is sleeved on the convex shaft (29), the sleeve ring (28) is connected with one end of the pull rod (26) through the second spring (27), the other end of the pull rod (26) is fixed on the sealing plate (25), and the second spring (27) is in a stretching state.
2. The electric shock preventing universal measuring instrument for power maintenance according to claim 1, wherein the translation assembly comprises a motor (20), a bearing (21) and a screw rod (22), the motor (20) and the bearing (21) are both fixed in the storage box (5), the motor (20) is in transmission connection with one end of the screw rod (22), the other end of the screw rod (22) is arranged in the bearing (21), the translation plate (8) is sleeved on the screw rod (22), and a thread matched with the screw rod (22) is arranged at the connection position of the translation plate (8) and the screw rod (22).
3. The universal electric shock protection measuring instrument for electric power maintenance according to claim 1, wherein the side of the translating plate (8) away from the second sleeve (10) is provided with a plurality of rollers (23), the diameter of the rollers (23) being the same as the thickness in the receiving box (5).
4. The universal electric shock protection measuring instrument for power maintenance as claimed in claim 1, wherein a fixing ring (24) is arranged in the first cylinder (12), the fixing ring (24) is fixed on the inner wall of the first cylinder (12), and the fixing ring (24) is sleeved on the connecting rod (16).
5. The electric shock resistant universal measuring instrument for power maintenance according to claim 1 characterized in that the end of the protruding shaft (29) away from the insulating tube (11) is provided with a protruding plate (30).
6. The universal electric shock preventing measuring instrument for power maintenance as claimed in claim 1, wherein said sealing unit further comprises an insert rod (31) and an insert ring (32), said insert ring (32) is fixed on the insulating tube (11), said insert rod (31) is fixed on the sealing plate (25), said insert ring (32) is fitted on the insert rod (31).
7. The electric shock resistant universal measuring instrument for power maintenance according to claim 6, wherein an end of the insert rod (31) remote from the sealing plate (25) is shaped as a hemisphere.
8. The electric shock preventing universal measuring instrument for electric power maintenance according to claim 1, wherein an end of the sealing plate (25) remote from the insulating tube (11) is provided with a pull ring (33).
9. The universal electric shock protection measuring instrument for power maintenance according to claim 1, wherein a speaker (7) is further provided on said case (1), said speaker (7) being electrically connected to the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910127339.0A CN109828138B (en) | 2019-02-20 | 2019-02-20 | A general purpose measuring instrument for electric shock prevention of power maintenance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910127339.0A CN109828138B (en) | 2019-02-20 | 2019-02-20 | A general purpose measuring instrument for electric shock prevention of power maintenance |
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| Publication Number | Publication Date |
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| CN109828138A CN109828138A (en) | 2019-05-31 |
| CN109828138B true CN109828138B (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910127339.0A Active CN109828138B (en) | 2019-02-20 | 2019-02-20 | A general purpose measuring instrument for electric shock prevention of power maintenance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110568398B (en) * | 2019-10-16 | 2024-06-04 | 内蒙古电力（集团）有限责任公司呼和浩特供电局 | Electric energy meter field maintenance handheld terminal |
| CN117805456B (en) * | 2024-03-01 | 2024-05-07 | 山东双开电力设备有限公司 | Multifunctional power distribution cabinet electric variable measuring device and method |
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| CN208172077U (en) * | 2018-05-21 | 2018-11-30 | 陇东学院 | A kind of multimeter for electronic surveying |
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| CN208378108U (en) * | 2018-07-03 | 2019-01-15 | 霍州煤电集团有限责任公司团柏煤矿 | Cable draw off gear and system |
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|---|---|---|---|---|
| CN203587669U (en) * | 2013-12-06 | 2014-05-07 | 国家电网公司 | Test pencil |
| CN105572458A (en) * | 2015-12-16 | 2016-05-11 | 无锡市永亿精密铸造有限公司 | Multifunctional test pencil |
| CN108037340A (en) * | 2017-12-28 | 2018-05-15 | 长泰品原电子科技有限公司 | A kind of intelligent universal meter easy to storage and measurement based on Internet of Things |
| CN208172077U (en) * | 2018-05-21 | 2018-11-30 | 陇东学院 | A kind of multimeter for electronic surveying |
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| CN109828138A (en) | 2019-05-31 |
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