CN109027610B

CN109027610B - Device capable of lifting power metering instrument and lifting method thereof

Info

Publication number: CN109027610B
Application number: CN201811039941.0A
Authority: CN
Inventors: 许先璠; 刘笑; 杨明; 接志远; 王锐
Original assignee: Anhui University
Current assignee: Anhui University
Priority date: 2018-09-06
Filing date: 2018-09-06
Publication date: 2020-06-16
Anticipated expiration: 2038-09-06
Also published as: CN109027610A

Abstract

The invention discloses a device capable of lifting an electric power metering instrument and a lifting method thereof. The device of the liftable electric power metering instrument comprises an outer box, an inner box, a lifting mechanism, a distance sensor and a controller. The bottom end of the outer box is provided with a lifting port, the inner box is arranged in the outer box, and the power metering instrument is arranged in the inner box. The lifting mechanism comprises a first motor, a threaded rod and a sliding rod parallel to the threaded rod. The first motor is installed in the outer box, the top end of the threaded rod is connected with an output shaft of the first motor, and the bottom end of the threaded rod penetrates through the lifting port and is exposed out of the outer box. The inner box is screwed on the threaded rod, the sliding rod penetrates through one side of the inner box, and the inner box slides along the axial direction of the sliding rod and enters and exits from the lifting port. According to the invention, by arranging the outer box and the inner box, the outer box can be fixed at a higher position, and the inner box can penetrate through the outer box and lift relative to the outer box, so that personnel can conveniently check, overhaul and replace the power metering instrument at a lower position, danger caused by the fact that the personnel climb to a high position to check is avoided, and the safety is improved.

Description

Device capable of lifting power metering instrument and lifting method thereof

Technical Field

The invention relates to a device for lifting a metering instrument in the field of electric power metering, in particular to a device for lifting an electric power metering instrument and a lifting method thereof.

Background

The electric power metering instrument is used for counting electricity consumption data of users and comprises an electric meter, an information acquisition device and the like. The existing electric power metering instruments are generally installed in an electric power metering box and are installed and fixed at a relatively high position so as to prevent electricity stealing and electric shock accidents. However, when the user needs to view the data of the electric power meter, the user needs to go to a high position to observe, which may cause a risk of falling and may not facilitate observation. Meanwhile, when a maintainer overhauls or replaces the electric power metering instrument, the position of the metering instrument is high, so that the operation of the maintainer is not facilitated, and the maintenance efficiency is reduced.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides a device capable of lifting an electric power measuring instrument and a lifting method thereof, which have the advantages of safety and convenience and solve the problem of inconvenient observation and maintenance caused by the higher position of the existing electric power measuring instrument.

The invention is realized by adopting the following technical scheme: a device capable of lifting an electric power meter comprises an outer box, wherein a lifting port is formed in the bottom end of the outer box; the liftable electric power meter device further comprises:

an inner box disposed inside the outer box; the electric power meter is arranged in the inner box;

the lifting mechanism comprises a first motor, a threaded rod and a sliding rod parallel to the threaded rod; the first motor is arranged in the outer box; the top end of the threaded rod is connected with an output shaft of the motor I, and the bottom end of the threaded rod penetrates through the lifting port and is exposed out of the outer box; the inner box is screwed on the threaded rod; the sliding rod penetrates through one side of the inner box, and the inner box slides along the axial direction of the sliding rod and enters and exits from the lifting port;

a distance sensor installed in the outer box and above the inner box, for detecting a distance S from the inner box;

the closing mechanism comprises a mounting plate, a second motor, a gear and a plug board; the mounting plate is mounted on the bottom end of the outer box; the second motor is arranged on the mounting plate; the gear is sleeved on an output shaft of the motor II; one side of the inserting plate is provided with a rack of a meshing gear, and the inserting plate is inserted into the mounting plate and covers the lifting opening; the gear rotates to drive the rack to move and drive the inserting plate to slide relative to the mounting plate so as to cover or open the lifting opening;

a controller disposed in the outer case and receiving an up signal or a down signal; when the controller receives the ascending signal, whether the distance S detected by the distance sensor is greater than a preset distance S1 is judged, if yes, the first motor is driven to rotate, the inner box is ascended, and the first motor is closed when the distance S is equal to the distance S1, otherwise, the ascending is judged to be finished; and when the controller receives the descending signal, the controller judges whether the distance S detected by the distance sensor is smaller than a preset distance S2, if so, the first motor is driven to rotate to descend the inner box, and the first motor is turned off when the distance S is equal to the distance S2, otherwise, the descending is judged to be finished.

As a further improvement of the above scheme, the number of the slide rods is two, and the two slide rods are symmetrical about the threaded rod; the device of the liftable electric power meter also comprises a positioning mechanism; the positioning mechanism comprises a positioning sleeve arranged on one side of the inner box, a limiting block rotatably arranged on the bottom end of the threaded rod, two first fixing blocks respectively connected with the top ends of the two sliding rods, two second fixing blocks respectively connected with the bottom ends of the two sliding rods, and two sliding sleeves respectively fixed on two sides of the inner box; the threaded rod is screwed in the positioning sleeve; the two first fixing blocks are both arranged on the inner wall of the outer box; the two sliding rods are respectively inserted into the two sliding sleeves and slide relative to the sliding sleeves.

As a further improvement of the proposal, the opposite sides of the outer box are respectively provided with a wire inlet hole and a wire outlet hole; the device of the liftable electric power metering instrument further comprises a wire inlet pipe and a wire outlet pipe; one end of the wire inlet pipe penetrates through the wire inlet hole and is positioned in the outer box, and the other end of the wire inlet pipe is connected to the power input end of the power metering instrument; one end of the wire outlet pipe penetrates through the wire inlet hole and is positioned in the outer box, and the other end of the wire outlet pipe is connected to the power output end of the power metering instrument; the wire inlet pipe and the wire outlet pipe are connected at one end in the outer box;

the device of the liftable electric power metering instrument further comprises an extension tube, wherein the extension tube comprises a plurality of extension tubes which are sequentially sleeved; the top end of the telescopic pipe is connected to the joint of the wire inlet pipe and the wire outlet pipe and communicated with the wire inlet pipe and the wire outlet pipe.

As a further improvement of the above solution, the device of the liftable electric power meter further comprises a position detection mechanism; the position detection mechanism comprises an infrared sensor; the transmitting end and the receiving end of the infrared sensor are respectively arranged on two sides of the threaded rod; when the distance S is less than a preset distance S3, the inner box blocks the infrared rays emitted from the emitting end to the receiving end of the infrared sensor.

The device for further improving the liftable electric power meter also comprises a remote control mechanism; the remote control mechanism comprises a signal transmitting module and a signal receiving module which are matched with each other; the signal transmitting module sends the ascending signal or the descending signal to a signal receiving module; the signal receiving module is installed in the outer box and transmits the ascending signal or the descending signal to the controller.

As a further improvement of the above solution, the device of the liftable electric power meter further comprises a waterproof cover; a waterproof cover is arranged in the inner box, and the electric power metering instrument is arranged in the waterproof cover; a plurality of water outlet holes communicated with the outer box are formed in the bottom wall of the inner box.

As a further improvement of the above scheme, when the controller receives the rising signal, the controller judges whether the distance S detected by the distance sensor is greater than a preset distance S4, if so, the second driving motor rotates clockwise to slide the plugboard and open the lifting opening, and when the distance S is less than a preset distance S5, the second driving motor rotates counterclockwise to slide the plugboard and cover the lifting opening; when the controller receives the descending signal, whether the distance S detected by the distance sensor is smaller than the preset distance S5 is judged, if yes, the second driving motor rotates clockwise to enable the inserting plate to slide and open the lifting opening, and when the distance S is larger than the distance S4, the second driving motor rotates anticlockwise to enable the inserting plate to slide and cover the lifting opening.

As a further improvement of the scheme, the number of the second motor and the number of the gears are two, and two parallel racks are arranged on the upper side and the lower side of the inserting plate; and one end of the inserting plate close to the threaded rod is provided with at least two notches corresponding to the threaded rod and the sliding rod.

The invention also provides a lifting method of the electric power metering instrument, which adopts any one device capable of lifting the electric power metering instrument; the lifting method comprises the following steps:

when the electric power meter is lifted, judging whether the distance S detected by the distance sensor is greater than a preset distance S1, if so, driving a first motor to rotate to lift the inner box, and if the distance S is equal to the distance S1, turning off the first motor, otherwise, judging that the lifting is finished;

when the electric power meter is descended, whether the distance S detected by the distance sensor is smaller than a preset distance S2 is judged, if yes, the first motor is driven to rotate, the inner box is descended, and the first motor is turned off when the distance S is equal to the distance S2, otherwise, the descending is judged to be finished.

According to the device and the lifting method for the lifting electric power meter, the outer box and the inner box are arranged, the outer box can be fixed at a higher position, the electric power meter is arranged in the inner box, the inner box can penetrate through the outer box and lift relative to the outer box, so that a person can conveniently check, overhaul and replace the electric power meter at a lower position, danger caused by the fact that the person climbs to a high position to check is avoided, and safety is improved.

According to the invention, the lifting mechanism is arranged, the motor rotates to drive the threaded rod to rotate, and the inner box can slide up and down along the axial direction of the sliding rod because the inner box cannot rotate relative to the threaded rod, so that the lifting of the inner box is controlled, and the lifting of the power metering instrument is realized. Meanwhile, the distance sensor is arranged to detect the distance of the inner box relative to the distance sensor when the inner box is lifted, the controller is arranged to receive the lifting or descending signal, the controller judges whether the position of the inner box is above the preset position or not after receiving the lifting signal, and the motor is driven to rotate to lift the inner box to the preset position. The controller judges whether the position of the inner box is a required position after receiving the descending signal, and then drives the motor to rotate, so that the inner box descends to the required position. Therefore, the accurate lifting of the electric power metering instrument is realized, and the personnel can conveniently carry out related operations.

According to the invention, the telescopic pipe is arranged, the cable inlet enters through the inlet pipe firstly, enters the inner box from the telescopic pipe and is connected with the electric power metering instrument, the outlet wire of the electric power metering instrument enters the outlet pipe from the telescopic pipe, the inner box is prevented from impacting the cable in the lifting process of the inner box, and the safety of the device is improved. Meanwhile, due to the protection effect of the telescopic sleeve, electricity stealing can be prevented, and the normal work of the electric power metering instrument is ensured.

The invention further detects whether the inner box reaches a more accurate position when being arranged in the outer box by arranging the position detection mechanism, thereby being convenient for accurately positioning the inner box.

According to the invention, through the arrangement of the remote control mechanism and the remote data transmission of the signal transmitting and receiving module, the lifting of the electric power metering instrument in the remote control device is realized, and the operation of personnel is facilitated.

According to the invention, the waterproof cover is arranged, the water outlet hole is formed in the bottom wall of the inner box, so that water entering the inner box is prevented from entering the electric power metering instrument, the entered water can flow out of the water outlet hole, water accumulation in the inner box is prevented, and the service life of the device and the electric power metering instrument is prolonged.

According to the invention, the closing mechanism is arranged, when the inner box descends and approaches the lifting opening, the controller drives the second motor to rotate, so that the inserting plate slides and opens the lifting opening, and when the inner box leaves the lifting opening, the controller drives the second motor to rotate reversely, so that the inserting plate slides and closes the lifting opening, thereby preventing the electric power metering instrument from being damaged due to dust, rainwater and the like entering the lifting opening, and prolonging the service life of the device and the electric power metering instrument.

Drawings

Fig. 1 is a schematic structural diagram of a device of a liftable electric power meter according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of the structure of the device for lifting and lowering the power meter when the inner box of FIG. 1 is lowered;

fig. 3 is an external view of an inner case of the device of the liftable electric power meter in fig. 1;

fig. 4 is a schematic structural diagram of a device of a liftable electric power meter according to embodiment 2 of the present invention;

FIG. 5 is a schematic view of the telescopic tube of FIG. 4;

fig. 6 is a schematic structural diagram of a device of a liftable electric power meter according to embodiment 3 of the present invention;

fig. 7 is a schematic structural diagram of a device of a liftable electric power meter according to embodiment 4 of the present invention;

fig. 8 is a schematic structural diagram of a device of a liftable electric power meter according to embodiment 5 of the present invention;

fig. 9 is an external view of a device of a liftable electric power meter according to embodiment 6 of the present invention;

FIG. 10 is a cross-sectional view of the closure mechanism of FIG. 9;

fig. 11 is a top view of the interposer of fig. 9.

Description of the symbols:

1 outer box 17 inner box

2 fixed block-18 telescopic cylinder

3 locating sleeve 19 mounting plate

4 wire outlet pipe 20 motor 2

5 outlet hole 21 gear

6 mounting rack 22 plugboard

7 Motor 23 Infrared sensor

8 wire inlet hole 24 controller

9 inlet pipe 25 signal receiving module

10 through hole 26 water shield

11 water outlet of sliding sleeve 27

12 threaded rod 28 distance sensor

13 stopper 171 glass sheet

14 fixed block two 221 notch

15 slide rod 222 rack

16 lifting port

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1 and 2, the present embodiment provides a lifting/lowering power meter device, which includes an outer box 1, an inner box 17, a lifting mechanism, a distance sensor 28, a controller 24, and a positioning mechanism.

The bottom of outer container 1 is seted up lifting port 16, and the shape of outer container 1 can be cask shape or square barrel shape, and outer container 1 can be fixed in higher position, avoids personnel to touch outer container 1. The opposite sides of the outer box 1 are respectively provided with a wire inlet hole 8 and a wire outlet hole 5. One end of the inlet pipe 9 passes through the inlet hole 8 and is positioned in the outer case 1, and the other end is connected to the power input end of the power meter. One end of the outlet pipe 4 passes through the inlet hole 8 and is positioned in the outer box 1, and the other end is connected to the power output end of the power metering instrument. The inlet pipe 9 and the outlet pipe 4 are connected at one end in the outer box 1. The cables of the power meter can enter the outer box 1 from the incoming line 9 and leave the outer box 1 from the outgoing line 4.

The inner box 17 is disposed inside the outer box 1, and may be disposed coaxially or non-coaxially. The top end of the inner box 17 is provided with a through hole 10, so that the cable can conveniently enter and exit. In order to facilitate the inspection of the data of the electric power meter in the inner box 17, a glass plate 171 is provided on one side of the inner box 17, and the condition of the inner box 17 can be inspected through the glass plate 171. Interior case 17 can pass lift mouth 16 and expose outer container 1 after descending, and electric power measurement appearance ware is installed in interior case 17, and like this, electric power measurement appearance ware can go up and down and fall to lower position along with interior case 17, and the personnel of being convenient for look over, overhaul and change electric power measurement appearance ware in lower position, avoid because personnel climb to the eminence and look over and cause danger, improve the security.

The lifting mechanism comprises a first motor 7, a threaded rod 12 and a slide rod 15. The first motor 7 is arranged on a mounting frame 6 arranged in the outer box 1. The threaded rod 12 is parallel to the slide rod 15, the top end of the threaded rod 12 is connected with the output shaft of the motor I7, and the bottom end of the threaded rod passes through the lifting port 16 and is exposed out of the outer box 1. The inner box 17 is screwed to the screw rod 12, the slide rod 15 passes through one side of the inner box 17, and the inner box 17 slides in the axial direction of the slide rod 15 and enters and exits from the lift port 16. The first motor 7 rotates to drive the threaded rod 12 to rotate, and the inner box 17 cannot rotate relative to the threaded rod 12, so that the inner box 17 can slide up and down along the axial direction of the sliding rod 15, the lifting of the inner box 17 is controlled, and the lifting power meter is realized.

In some embodiments, the number of the slide bars 15 is two, and the two slide bars 15 are symmetrical with respect to the threaded rod 12 to improve the stability of the lifting of the inner box 17.

The distance sensor 28 is installed in the outer box 1 above the inner box 17 and detects a distance S to the inner box 17. The distance sensor 28 may be an ultrasonic distance measuring sensor, or may be another sensor, and may be selected according to the actual working environment.

The controller 24 is provided in the outer case 1 and receives an up signal or a down signal. Upon receiving the ascending signal, the controller 24 determines whether the distance S detected by the distance sensor 28 is greater than a preset distance S1, if so, drives the first motor 7 to rotate to ascend the inner box 17, and turns off the first motor 7 when the distance S is equal to the distance S1, otherwise, determines that the ascending is finished. Upon receiving the descent signal, the controller 24 determines whether the distance S detected by the distance sensor 28 is less than a preset distance S2, if so, drives the first motor 7 to rotate to descend the inner box 17, and turns off the first motor 7 when the distance S is equal to the distance S2, otherwise, determines that the descent is finished. After receiving the ascending signal, the controller 24 determines whether the position of the inner box 17 is above the preset position, and drives the first motor 7 to rotate, so that the inner box 17 ascends to the preset position. The controller 24 determines whether the position of the inner box 17 is the required position after receiving the descending signal, and then drives the first motor 7 to rotate, so that the inner box 17 descends to the required position. Therefore, the accurate lifting of the electric power metering instrument is realized, and the personnel can conveniently carry out related operations.

The positioning mechanism comprises a positioning sleeve 3, a limiting block 13, two first fixing blocks 2, two second fixing blocks 14 and two sliding sleeves 11. The positioning sleeve 3 is mounted on one side of the inner box 17. The stopper 13 is rotatably mounted on the bottom end of the threaded rod 12 and can be fixed below the outer case 1. The two first fixing blocks 2 are respectively connected with the top ends of the two sliding rods 15, and the two second fixing blocks 14 are respectively connected with the bottom ends of the two sliding rods 15. Two fixed blocks I2 are both installed on the inner wall of the outer box 1. Two sliding sleeves 11 are fixed on both sides of the inner box 17, respectively, and two sliding rods 15 are inserted into the two sliding sleeves 11, respectively, and slide with respect to the sliding sleeves 11. The positioning mechanism can restrict excessive lifting of the inner box 17 and improve the stability of the lifting process of the inner box 17.

In summary, compared to the conventional power metering box, the device of the liftable power metering device of the embodiment has the following advantages:

1. the device of the liftable electric power measurement appearance of this embodiment, through setting up outer container 1 and inner box 17, outer container 1 can be fixed in higher position department, and the electric power measurement appearance is installed in inner box 17, and inner box 17 can pass outer container 1 and relative outer container 1 goes up and down, and the personnel of being convenient for look over in lower position, overhaul and change the electric power measurement appearance, avoid because personnel climb to the eminence and look over and cause danger, improve the security.

2. In the device for lifting the power metering instrument, the first motor 7 rotates to drive the threaded rod 12 to rotate through the lifting mechanism, and the inner box 17 cannot rotate relative to the threaded rod 12, so that the inner box 17 can slide up and down along the axial direction of the sliding rod 15, thereby controlling the lifting of the inner box 17 and realizing the lifting of the power metering instrument.

3. In the device of the liftable electric power meter of the embodiment, the distance sensor 28 is arranged to detect the distance relative to the distance sensor 28 when the inner box 17 is lifted, and the controller 24 is arranged to receive the lifting or falling signal, so that after receiving the lifting signal, the controller 24 judges whether the position of the inner box 17 is above the preset position, and drives the first motor 7 to rotate, so that the inner box 17 is lifted to the preset position. The controller 24 determines whether the position of the inner box 17 is the required position after receiving the descending signal, and then drives the first motor 7 to rotate, so that the inner box 17 descends to the required position. Therefore, the accurate lifting of the electric power metering instrument is realized, and the personnel can conveniently carry out related operations.

Example 2

Referring to fig. 4 and 5, the lifting electric power meter of the present embodiment is additionally provided with a telescopic tube based on embodiment 1.

The telescopic tube comprises a plurality of telescopic cylinders 18 which are sleeved in sequence. The top end of the telescopic pipe is connected to the joint of the wire inlet pipe 9 and the wire outlet pipe 4 and communicated with the wire inlet pipe 9 and the wire outlet pipe 4. In this embodiment, the cable is firstly led in through the inlet pipe 9, and enters the inner box 17 from the telescopic pipe, and is connected to the electric power meter, and the outlet wire of the electric power meter enters the outlet pipe 4 from the telescopic pipe, so that the inner box 17 is prevented from impacting the cable in the lifting process of the inner box 17, and the safety of the device is improved. Meanwhile, due to the protection effect of the telescopic sleeve, electricity stealing can be prevented, and the normal work of the electric power metering instrument is ensured.

Example 3

Referring to fig. 6, the liftable electric power meter of the present embodiment is additionally provided with a position detecting mechanism in addition to embodiment 1. The position detection mechanism includes an infrared sensor 23. The transmitting end and the receiving end of the infrared sensor 23 are respectively provided on both sides of the threaded rod 12. When the distance S is less than a preset distance S3, the inner box 17 blocks the infrared rays emitted from the emitting end to the receiving end of the infrared sensor 23. The position detection mechanism further detects whether the inner box 17 reaches a more accurate position when in the outer box 1, which is convenient for accurately positioning the inner box 17.

Example 4

Referring to fig. 7, the liftable electric power meter of the present embodiment is added with a remote control mechanism on the basis of embodiment 1. The remote control mechanism comprises a signal transmitting module and a signal receiving module 25 which are matched with each other. The signal transmitting module transmits an up signal or a down signal to the signal receiving module 25. The signal receiving module 25 is installed in the outer case 1 and transmits an up signal or a down signal to the controller 24. The embodiment transmits the remote data through the signal transmitting and receiving module, so that the electric power metering instrument in the remote control device is lifted, and the operation of personnel is facilitated.

Example 5

Referring to fig. 8, the device of the liftable electric power meter of the present embodiment is added with a waterproof cover 26 on the basis of embodiment 1. A waterproof cover 26 is arranged in the inner box 17, and the first motor 7 is arranged in the waterproof cover 26. Meanwhile, the bottom wall of the inner box 17 is provided with a plurality of water outlet holes 27 communicated with the outer box 1. Thus, water entering the inner box 17 can be prevented from entering the electric power measuring instrument, the entering water can flow out from the water outlet hole 27, water is prevented from accumulating in the inner box 17, and the service life of the device and the electric power measuring instrument is prolonged.

Example 6

Referring to fig. 9, 10 and 11, a closing mechanism is added to the device of the liftable electric power meter according to the embodiment 1. The closing mechanism comprises a mounting plate 19, a second motor 20, a gear 21 and an inserting plate 22. The mounting plate 19 is mounted on the bottom end of the outer box 1; the second motor 20 is mounted on the mounting plate 19. The gear 21 is sleeved on an output shaft of the second motor 20; one side of the inserting plate 22 is provided with a rack 222 engaged with the gear 21, and the inserting plate 22 is inserted into the mounting plate 19 and covers the lifting opening 16. The rotation of the gear 21 drives the rack 222 to move and drives the inserting plate 22 to slide relative to the mounting plate 19 to cover or open the lifting opening 16.

In some embodiments, the controller 24 determines whether the distance S detected by the distance sensor 28 is greater than a predetermined distance S4 when receiving the rising signal, and drives the second motor 20 to rotate clockwise to slide the board 22 and open the lifting port 16, and drives the second motor 20 to rotate counterclockwise to slide the board 22 and cover the lifting port 16 when the distance S is less than a predetermined distance S5. When the controller 24 receives the descending signal, it determines whether the distance S detected by the distance sensor 28 is less than a preset distance S5, if so, the second driving motor 20 rotates clockwise to slide the board 22 and open the lifting port 16, and if the distance S is greater than the distance S4, the second driving motor 20 rotates counterclockwise to slide the board 22 and cover the lifting port 16.

In this embodiment, the number of the second motor 20 and the second gear 21 is two, and two parallel racks 222 are disposed on both upper and lower sides of the inserting plate 22. At least two notches 221 corresponding to the threaded rod 12 and the slide rod 15 are formed at one end of the inserting plate 22 close to the threaded rod 12.

In the embodiment, by arranging the closing mechanism, when the inner box 17 descends and approaches the lifting port 16, the controller 24 drives the second motor 20 to rotate, so that the inserting plate 22 slides and opens the lifting port 16, and when the inner box 17 leaves the lifting port 16, the controller 24 drives the second motor 20 to rotate reversely, so that the inserting plate 22 slides and closes the lifting port 16, thereby avoiding the electric power meter from being damaged due to entering of dust, rainwater and the like into the lifting port 16, and prolonging the service life of the device and the electric power meter.

Example 7

The present embodiment provides a method for lifting and lowering an electric power meter, and adopts the device for lifting and lowering an electric power meter of embodiment 1. The lifting method comprises the following steps:

when the electric power meter is lifted, whether the distance S detected by the distance sensor 28 is greater than a preset distance S1 is judged, if yes, the first motor 7 is driven to rotate, the inner box 17 is lifted, and the first motor 7 is closed when the distance S is equal to the distance S1, otherwise, the lifting is judged to be finished.

When the electric power meter is lowered, whether the distance S detected by the distance sensor 28 is less than a preset distance S2 is judged, if yes, the first motor 7 is driven to rotate, the inner box 17 is lowered, and the first motor 7 is turned off when the distance S is equal to the distance S2, otherwise, the lowering is judged to be finished.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A liftable device of electric power measurement appearance, includes outer container (1), its characterized in that: the bottom end of the outer box (1) is provided with a lifting port (16); the liftable electric power meter device further comprises:

an inner box (17) provided in the outer box (1); the power meter is mounted in an inner box (17);

the lifting mechanism comprises a first motor (7), a threaded rod (12) and a sliding rod (15) parallel to the threaded rod (12); the first motor (7) is arranged in the outer box (1); the top end of the threaded rod (12) is connected with an output shaft of the motor I (7), and the bottom end of the threaded rod penetrates through the lifting port (16) and is exposed out of the outer box (1); the inner box (17) is screwed on the threaded rod (12); the sliding rod (15) penetrates through one side of the inner box (17), and the inner box (17) slides along the axial direction of the sliding rod (15) and enters and exits from the lifting port (16);

a distance sensor (28) which is installed in the outer box (1), is positioned above the inner box (17), and detects the distance S from the inner box (17);

the closing mechanism comprises a mounting plate (19), a second motor (20), a gear (21) and an inserting plate (22); the mounting plate (19) is mounted on the bottom end of the outer box (1); the second motor (20) is arranged on the mounting plate (19); a gear (21) is sleeved on an output shaft of the second motor (20); one side of the inserting plate (22) is provided with a rack (222) meshed with the gear (21), and the inserting plate (22) is inserted into the mounting plate (19) and covers the lifting opening (16); the gear (21) rotates to drive the rack (222) to move and drive the inserting plate (22) to slide relative to the mounting plate (19) so as to cover or open the lifting opening (16);

a controller (24) which is provided in the outer box (1) and receives an up signal or a down signal; when the controller (24) receives the ascending signal, whether the distance S detected by the distance sensor (28) is greater than a preset distance S1 is judged, if yes, the motor I (7) is driven to rotate, the inner box (17) is ascended, and the motor I (7) is closed when the distance S is equal to the distance S1, otherwise, the ascending is judged to be finished; and when receiving the descending signal, the controller (24) judges whether the distance S detected by the distance sensor (28) is smaller than a preset distance S2, if so, the controller drives the first motor (7) to rotate to descend the inner box (17), and if the distance S is equal to the distance S2, the controller turns off the first motor (7), otherwise, the controller judges that the descending is finished.

2. The liftable electric power meter device according to claim 1, wherein: the number of the sliding rods (15) is two, and the two sliding rods (15) are symmetrical about the threaded rod (12); the device of the liftable electric power meter also comprises a positioning mechanism; the positioning mechanism comprises a positioning sleeve (3) arranged on one side of the inner box (17), a limiting block (13) rotatably arranged at the bottom end of the threaded rod (12), two first fixed blocks (2) respectively connected with the top ends of the two sliding rods (15), two second fixed blocks (14) respectively connected with the bottom ends of the two sliding rods (15), and two sliding sleeves (11) respectively fixed on two sides of the inner box (17); the threaded rod (12) is screwed in the positioning sleeve (3); the two first fixing blocks (2) are both arranged on the inner wall of the outer box (1); two sliding rods (15) are respectively inserted into the two sliding sleeves (11) and slide relative to the sliding sleeves (11).

3. The liftable electric power meter device according to claim 1, wherein: the opposite sides of the outer box (1) are respectively provided with a wire inlet hole (8) and a wire outlet hole (5); the device of the liftable electric power metering instrument further comprises a wire inlet pipe (9) and a wire outlet pipe (4); one end of the wire inlet pipe (9) penetrates through the wire inlet hole (8) and is positioned in the outer box (1), and the other end of the wire inlet pipe is connected to the power input end of the power metering instrument; one end of the wire outlet pipe penetrates through the wire inlet hole (8) and is positioned in the outer box (1), and the other end of the wire outlet pipe is connected to the power output end of the power metering instrument; the wire inlet pipe (9) and the wire outlet pipe (4) are connected with each other at one end in the outer box (1);

the device of the liftable electric power metering instrument further comprises an extension tube, wherein the extension tube comprises a plurality of extension tubes (18) which are sequentially sleeved; the top end of the telescopic pipe is connected to the joint of the wire inlet pipe (9) and the wire outlet pipe (4) and communicated with the wire inlet pipe (9) and the wire outlet pipe (4).

4. The liftable electric power meter device according to claim 1, wherein: the device of the liftable electric power meter also comprises a position detection mechanism; the position detection mechanism includes an infrared sensor (23); the transmitting end and the receiving end of the infrared sensor (23) are respectively arranged on two sides of the threaded rod (12); when the distance S is less than a preset distance S3, the inner box (17) blocks the infrared rays emitted from the emitting end to the receiving end of the infrared sensor (23).

5. The liftable electric power meter device according to claim 1, wherein: the device of the liftable electric power meter also comprises a remote control mechanism; the remote control mechanism comprises a signal transmitting module and a signal receiving module (25) which are matched with each other; the signal transmitting module sends the ascending signal or the descending signal to a signal receiving module (25); the signal receiving module (25) is installed in the outer box (1) and transmits the rising signal or the falling signal to the controller (24).

6. The liftable electric power meter device according to claim 1, wherein: the device of the liftable electric power meter further comprises a waterproof cover (26); a waterproof cover (26) is installed in the inner box (17), and the electric power metering instrument is installed in the waterproof cover (26); the bottom wall of the inner box (17) is provided with a plurality of water outlet holes (27) communicated with the outer box (1).

7. The liftable electric power meter device according to claim 1, wherein: when the controller (24) receives the ascending signal, whether the distance S detected by the distance sensor (28) is greater than a preset distance S4 is judged, if yes, the second motor (20) is driven to rotate clockwise, the inserting plate (22) slides and the lifting opening (16) is opened, and when the distance S is less than a preset distance S5, the second motor (20) is driven to rotate anticlockwise, the inserting plate (22) slides and covers the lifting opening (16); when the controller (24) receives the descending signal, whether the distance S detected by the distance sensor (28) is smaller than the preset distance S5 or not is judged, if yes, the second driving motor (20) rotates clockwise to enable the plug board (22) to slide and open the lifting opening (16), and when the distance S is larger than the distance S4, the second driving motor (20) rotates anticlockwise to enable the plug board (22) to slide and cover the lifting opening (16).

8. The liftable electric power meter device according to claim 1, wherein: the number of the second motor (20) and the number of the gears (21) are two, and two parallel racks (222) are arranged on the upper side and the lower side of the inserting plate (22); one end of the inserting plate (22) close to the threaded rod (12) is provided with at least two notches (221) corresponding to the threaded rod (12) and the sliding rod (15).

9. A lifting method of an electric power meter, which is applied to the device of a liftable electric power meter according to any one of claims 1 to 8; the method is characterized in that: the lifting method comprises the following steps:

when the electric power meter is lifted, judging whether the distance S detected by the distance sensor (28) is greater than a preset distance S1, if so, driving the first motor (7) to rotate to lift the inner box (17), and if the distance S is equal to the distance S1, closing the first motor (7), otherwise, judging that the lifting is finished;

when the electric power meter is descended, whether the distance S detected by the distance sensor (28) is smaller than a preset distance S2 is judged, if yes, the motor I (7) is driven to rotate, the inner box (17) is descended, and if the distance S is equal to the distance S2, the motor I (7) is closed, otherwise, the descent is judged to be finished.