CN112230041A

CN112230041A - A voltage detection device for electrical equipment maintenance with overload protection mechanism

Info

Publication number: CN112230041A
Application number: CN202011114805.0A
Authority: CN
Inventors: 李一峰; 樊海红; 林景东; 罗朋; 林芳; 洪渭; 李彩霞
Original assignee: Guangdong Ocean University
Current assignee: Shaanxi Huijie Sicheng Engineering Installation Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-01-15
Anticipated expiration: 2040-10-19
Also published as: CN112230041B

Abstract

The invention discloses a voltage detection device with an overload protection mechanism for maintaining electrical equipment, which comprises a base body, an ammeter, a rotary knife and a second test clamp, wherein a swinging page is arranged on the left side of the base body and is connected with a box door, and a glass window is arranged on the front side of the box door. This voltage detection device is used in electrical equipment maintenance with overload protection mechanism is provided with fixed baffle, rotatory baffle, metal block, spring and electro-magnet, therefore the device can realize overload protection, and its theory of operation is: when the voltage does not exceed the rated value, the attraction force of the electromagnet to the rotating guide plate is smaller than the pulling force of the spring to the rotating guide plate, so that the circuit of the device is closed and the device operates normally; when voltage exceeds a rated value, attraction of the electromagnet to the rotating guide plate is larger than tension of the spring to the rotating guide plate, the electromagnet attracts the rotating guide plate, the rotating guide plate is separated from the fixed guide plate, a circuit of the device is disconnected, an overload protection effect is achieved, and practicability is improved.

Description

Voltage detection device with overload protection mechanism for electrical equipment maintenance

Technical Field

The invention relates to the technical field of voltage detection devices, in particular to a voltage detection device with an overload protection mechanism for maintaining electrical equipment.

Background

The voltage detection device is an instrument used for detecting working voltage between electrical equipment, is frequently needed when the electrical equipment is maintained, and is an essential instrument for electrical equipment maintenance, but the voltage detection device in the current market has many defects, such as:

1. the voltage detection device for maintaining the electrical equipment in the current market does not have an overload protection mechanism, and because the structure of the voltage detection device for maintaining the electrical equipment in the current market has defects, the voltage detection device lacks a mechanism capable of effectively protecting the voltage during overload, which causes the situation that short circuit and an ammeter are burnt out easily when the voltage detected exceeds the maximum allowable voltage, the voltage detection device for maintaining the electrical equipment in the current market is not practical;

2. the voltage detection device for electrical equipment maintenance in the current market is not convenient to maintain and carry, and is inconvenient to disassemble due to the defect of the structure of the voltage detection device for electrical equipment maintenance in the current market, so that dust is easily accumulated and damaged in the long-time internal part of the voltage detection device, and the voltage detection device is not convenient to carry, so that the voltage detection device for electrical equipment maintenance in the current market is not practical.

Therefore, we propose a voltage detection device for maintenance of electrical equipment having an overload protection mechanism so as to solve the problems set forth above.

Disclosure of Invention

The invention aims to provide a voltage detection device with an overload protection mechanism for maintaining electrical equipment, which aims to solve the problems that the prior art does not have the overload protection mechanism, is inconvenient to maintain and carry in the market.

In order to achieve the purpose, the invention provides the following technical scheme: a voltage detection device with an overload protection mechanism for maintaining electrical equipment comprises a base body, an electric meter, a rotary knife and a second test clamp, wherein a swing page is arranged on the left side of the base body and connected with a box door, a glass window is arranged on the front side of the box door, a door lock handle is arranged at the right end of the front side of the box door, a knob, a second gear and a first gear are arranged at the lower right corner of the box door, the knob is connected with the rotary knife, a handle seat is arranged at the upper end of the base body through a first threaded rod and connected with an anti-skidding handle, a bottom anti-skidding pad is arranged at the lower end of the base body, an adjustable support is arranged on the rear side of the base body, a fixed block is arranged on the rear side of the base body and forms a rotating mechanism together with a supporting rod, a fixed guide plate is arranged inside the base body through a fourth threaded rod, the rotary guide plate bracket and the rotary guide plate form a rotary mechanism, the rotary guide plate is clamped with the fixed guide plate, a spring is arranged between the rotary guide plate and the spring seat, the front surface of the rotary guide plate is provided with a metal block, the right end of the metal block is provided with an electromagnet, an iron core is arranged inside the electromagnet, the electromagnet is connected on an electromagnet base, the electromagnet base is fixed inside the base body through a fourth threaded rod, the lower end of the rotary guide plate bracket is connected with a connecting plug, the connecting plug is connected with a three-hole lead connecting device, the lower end of the three-hole lead connecting device is connected in an inner hole of a fixed plate through a lead and the connecting plug, the fixed plate is fixed at the lower end of the base body through a third threaded rod, a needle head is inserted in the inner hole of the fixed plate, the needle head is connected, the ammeter sets up in the ammeter case, and the ammeter case passes through the second threaded rod to be fixed inside the base member, the second test clip passes through the wire and the syringe needle is connected with the fixed plate.

Preferably, the number of the pendulum pages is 2, the pendulum pages are arranged up and down symmetrically about the center of the base body, and the pendulum pages are overlapped on the same vertical line.

Preferably, the number of the box doors is 1, the length and the width of the box doors are consistent with those of the base body, and the box doors and the base body form a rotating mechanism through the swinging leaves.

Preferably, the number of the glass windows is 1, the size of the glass window is smaller than that of the box door, and the size of the glass window is equal to that of the electric meter.

Preferably, the number of the bottom anti-skid pads is 2, the bottom anti-skid pads are arranged in a left-right symmetrical mode relative to the center of the bottom of the base body, and the surface of each bottom anti-skid pad is rough.

Preferably, the number of the first measuring range blocks is 1, the first measuring range block and the second measuring range block are bilaterally symmetrical with respect to the rotary knife, and the rotary knife, the first measuring range block and the second measuring range block constitute an engaging mechanism.

Preferably, the number of the first test clips is 1, the size specification of the first test clips is consistent with that of the second test clips, and the lengths of the wires of the first test clips and the second test clips are consistent.

Preferably, there are 2 support rods, the support rods are arranged in bilateral symmetry with respect to the center of the base body, and the support rods and the fixed blocks form a rotating mechanism.

Preferably, the number of the adjustable supports is 4, the adjustable supports are arranged in an up-down and left-right symmetrical mode relative to the center of the base body, and the height of each adjustable support is higher than that of each fixing block.

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

1. this voltage detection device is used in electrical equipment maintenance with overload protection mechanism is provided with fixed baffle, rotatory baffle, metal block, spring and electro-magnet, therefore the device can realize overload protection, and its theory of operation is: when the voltage does not exceed the rated value, the attraction force of the electromagnet to the rotating guide plate is smaller than the pulling force of the spring to the rotating guide plate, so that the circuit of the device is closed and the device operates normally; when the voltage exceeds a rated value, the attraction force of the electromagnet to the rotating guide plate is greater than the tension force of the spring to the rotating guide plate, the electromagnet attracts the rotating guide plate, the rotating guide plate is separated from the fixed guide plate, the circuit of the device is disconnected, the overload protection effect is achieved, and the practicability is improved;

2. this voltage detection device is used in electrical equipment maintenance with overload protection mechanism is provided with pendulum page or leaf, chamber door, anti-skidding handle and door lock handle, therefore the device is convenient for maintain and carry, and its theory of operation is: when the inside of the device is maintained, the door lock handle is only required to be opened, the box door is opened, the inside of the device can be maintained, the anti-skidding handle is held by a hand, the device can be lifted away, the purpose of being convenient to maintain and carry is achieved, and the practicability is increased.

Drawings

FIG. 1 is a schematic front view of a partially opened, partially sectioned structure of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic side view of the present invention;

FIG. 4 is a schematic top view of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 1 according to the present invention.

In the figure: 1. a substrate; 2. page turning; 3. a box door; 4. a glass window; 5. a door lock handle; 6. a bottom non-slip mat; 7. a handle base; 8. a first threaded rod; 9. an anti-slip handle; 10. an electricity meter; 11. a meter case; 12. a second threaded rod; 13. a first range block; 14. a second range block; 15. a rotary knife; 16. a first test clip; 17. a wire; 18. a knob; 19. a fixed block; 20. a support bar; 21. an adjustable support; 22. fixing the guide plate; 23. a spring seat; 24. a metal block; 25. a spring; 26. an electromagnet; 27. an electromagnet base; 28. rotating the guide plate; 29. rotating the guide plate bracket; 30. a three-hole wire connecting device; 31. a needle head; 32. a third threaded rod; 33. a connecting plug; 34. a fixing plate; 35. a second test clip; 36. a fourth threaded rod; 37. an iron core; 38. a second gear; 39. a first gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a voltage detection device with an overload protection mechanism for maintaining electrical equipment comprises a base body 1, a swinging page 2, a box door 3, a glass window 4, a door lock handle 5, a bottom anti-skid pad 6, a handle seat 7, a first threaded rod 8, an anti-skid handle 9, an electricity meter 10, an electricity meter shell 11, a second threaded rod 12, a first measuring range block 13, a second measuring range block 14, a rotary knife 15, a first test clamp 16, a lead 17, a knob 18, a fixed block 19, a supporting rod 20, an adjustable support 21, a fixed guide plate 22, a spring seat 23, a metal block 24, a spring 25, an electromagnet 26, an electromagnet base 27, a rotary guide plate 28, a rotary guide plate support 29, a three-hole lead connecting device 30, a needle 31, a third threaded rod 32, a connecting plug 33, a fixed plate 34, a second test clamp 35, a fourth threaded rod 36, an iron core 37, a second gear 38 and a first gear 39, wherein the swinging page 2 is arranged on the left side, the swing leaf 2 is connected with the box door 3, the front of the box door 3 is provided with a glass window 4, the right end of the front of the box door 3 is provided with a door lock handle 5, the lower right corner of the box door 3 is provided with a knob 18, a second gear 38 and a first gear 39, the knob 18 is connected with a rotary knife 15, the upper end of the base body 1 is provided with a handle seat 7 through a first threaded rod 8, the handle seat 7 is connected with an anti-skid handle 9, the lower end of the base body 1 is provided with a bottom anti-skid pad 6, the rear side of the base body 1 is provided with an adjustable bracket 21, the rear side of the base body 1 is provided with a fixed block 19, the fixed block 19 and a support rod 20 form a rotary mechanism, the inside of the base body 1 is provided with a fixed guide plate 22 through a fourth threaded rod 36, the inside of the base body 1 is provided with a spring seat, the rotary guide plate 28 is clamped with the fixed guide plate 22, a spring 25 is arranged between the rotary guide plate 28 and the spring seat 23, the front surface of the rotary guide plate 28 is provided with a metal block 24, the right end of the metal block 24 is provided with an electromagnet 26, an iron core 37 is arranged inside the electromagnet 26, the electromagnet 26 is connected with an electromagnet base 27, the electromagnet base 27 is fixed inside the base body 1 through a fourth threaded rod 36, the lower end of the rotary guide plate bracket 29 is connected with a connecting plug 33, the connecting plug 33 is connected with a three-hole lead connecting device 30, the lower end of the three-hole lead connecting device 30 is connected in an inner hole of a fixed plate 34 through a lead 17 and the connecting plug 33, the fixed plate 34 is fixed at the lower end of the base body 1 through a third threaded rod 32, a needle 31 is inserted in the inner hole of the fixed plate 34, the needle 31 is connected with a first test clamp 16 through the, electric meter 10 is placed in meter case 11, meter case 11 is fixed inside base body 1 by second threaded rod 12, and second test clip 35 is connected to fixing plate 34 through lead 17 and needle 31.

The pendulum page or leaf 2 has 2, and the pendulum page or leaf 2 sets up about 1 central longitudinal symmetry of base member to the pendulum page or leaf 2 coincides on same vertical line, guarantees that chamber door 3 can normally open and close, makes the device rational in infrastructure stable, has increased the practicality.

The chamber door 3 has 1, and the length and width of chamber door 3 is unanimous with the length and width size of base member 1 to chamber door 3 constitutes rotary mechanism through pendulum page or leaf 2 and base member 1, guarantees that chamber door 3 can normally open and close, makes the device rational in infrastructure stable, has increased the practicality.

Glass window 4 has 1, and glass window 4's size is less than the size of chamber door 3 to glass window 4's size equals the size of ammeter 10, guarantees to observe the pointer reading of ammeter 10 from glass window 4, makes the device rational in infrastructure stable, has increased the practicality.

Bottom slipmat 6 has 2, and bottom slipmat 6 sets up about 1 bottom central bilateral symmetry of base member to 6 rough surfaces of bottom slipmat guarantee that bottom slipmat 6 can produce frictional force to ground, make the device can place on ground steadily, increased the practicality.

The number of the first range blocks 13 is 1, the first range blocks 13 and the second range blocks 14 are bilaterally symmetrical about the rotary cutter 15, and the rotary cutter 15, the first range blocks 13 and the second range blocks 14 form a clamping mechanism, so that the rotary cutter 15 can be clamped to the first range blocks 13 and the second range blocks 14 through rotation, the structure of the device is reasonable, and the practicability is improved.

First test clip 16 has 1, and the dimensional specification of first test clip 16 is unanimous with second test clip 35 to first test clip 16 is unanimous with the wire 17 length of second test clip 35, guarantees that first test clip 16 and second test clip 35 can normally work, makes the device rational in infrastructure stable, has increased the practicality.

The number of the support rods 20 is 2, the support rods 20 are arranged in bilateral symmetry about the center of the base body 1, and the support rods 20 and the fixing blocks 19 form a rotating mechanism, so that the support rods 20 can stably support the base body 1, the stress of the device is uniform, and the practicability is improved.

Adjustable support 21 has 4, and adjustable support 21 sets up about base member 1 center bilateral symmetry to adjustable support 21 highly is higher than the height of fixed block 19, guarantees that adjustable support 21 is even to base member 1's effort, makes the device not produce the slope and rock, has increased the practicality.

The working principle is as follows: when the voltage detection device with the overload protection mechanism for maintaining the electrical equipment is used, the device is driven to a working place, the anti-skidding handle 9 in the handle seat 7 at the upper end of the base body 1 is held by hands, the device is lifted to a destination, then the device is assembled, the needle head 31 at the tail end of the lead 17 connected with the first test clip 16 is inserted into the left side hole at the lower end of the base body 1, the needle head 31 at the tail end of the lead 17 connected with the second test clip 35 is inserted into the right side hole at the lower end of the base body 1, after the assembly is finished, the voltage detection is started on the electrical equipment, the voltage input end of the electrical equipment is clamped by the first test clip 16, the voltage output end of the electrical equipment is clamped by the second test clip 35, the knob 18 is rotated to the second gear position 38, the reading of the electric meter 10 is observed through the glass window 4, if the reading of the electric meter 10 is smaller, the knob 18 is rotated to the, at the moment, the reading of the pointer of the electric meter 10 is normally displayed, and when the voltage does not exceed the rated value, the attraction force of the electromagnet 26 to the rotating guide plate 28 is smaller than the pulling force of the spring 25 to the rotating guide plate 28, so that the circuit of the device is closed and the device operates normally; when the voltage exceeds the rated value, the attraction force of the electromagnet 26 to the rotating guide plate 28 is larger than the pulling force of the spring 25 to the rotating guide plate 28, the electromagnet 26 attracts the rotating guide plate 28, the rotating guide plate 28 is separated from the fixed guide plate 22, the circuit of the device is disconnected, no voltage and no current exist, the overload protection effect is achieved, after the device is used, the device is maintained, the door lock handle 5 on the outer side of the door 3 is opened, the device can be opened by rotating the door 3, the interior of the device is maintained, and therefore a series of work is completed, and the content which is not described in detail in the specification belongs to the prior art which is well known to a person skilled in the.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. A voltage detection device for electrical equipment maintenance with an overload protection mechanism, comprising a base body (1), an electric meter (10), a rotary knife (15) and a second test clip (35), characterized in that: the base body ( 1) A page swing (2) is arranged on the left side, and the page swing (2) is connected to the box door (3), and a glass window (4) is arranged on the front of the box door (3), and the right end of the front of the box door (3) is arranged There is a door lock handle (5), and the lower right corner of the box door (3) is provided with a knob (18), a second gear (38) and a first gear (39), and the knob (18) is connected to the rotary knife (15) The upper end of the base body (1) is provided with a handle seat (7) through the first threaded rod (8), and the handle seat (7) is connected to the anti-skid handle (9), and the lower end of the base body (1) is provided with a bottom anti-skid pad (6). ), an adjustable bracket (21) is arranged on the rear side of the base body (1), and a fixing block (19) is arranged on the rear side of the base body (1), and the fixing block (19) and the support rod (20) constitute a rotating mechanism, A fixed guide plate (22) is arranged inside the base body (1) through a fourth threaded rod (36), and a spring seat (23) is arranged inside the base body (1) through a fourth threaded rod (36), and the base body (1) A rotating guide plate bracket (29) is provided inside through the fourth threaded rod (36), the rotating guide plate bracket (29) and the rotating guide plate (28) constitute a rotating mechanism, and the rotating guide plate (28) is engaged with the fixed guide plate (22). , and a spring (25) is arranged between the rotating guide plate (28) and the spring seat (23), a metal block (24) is arranged on the front of the rotating guide plate (28), and an electromagnet ( 26), and an iron core (37) is provided inside the electromagnet (26), the electromagnet (26) is connected to the electromagnet base (27), and the electromagnet base (27) passes through the fourth threaded rod (36) Fixed inside the base body (1), the lower end of the rotating guide plate bracket (29) is connected to a connection plug (33), and the connection plug (33) is connected to a three-hole wire connection device (30), and the lower end of the three-hole wire connection device (30) The wire (17) and the connecting plug (33) are connected to the inner hole of the fixing plate (34). A needle (31) is inserted into the inner hole of 34), and the needle (31) is connected to the first test clip (16) through a wire (17). 13) and the second measuring range block (14), the electric meter (10) is arranged in the electric meter case (11), and the electric meter case (11) is fixed inside the base body (1) by the second threaded rod (12), and the electric meter case (11) is The second test clip (35) is connected to the fixing plate (34) through the wire (17) and the needle (31).

2 . The voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 1 , wherein there are two swing pages ( 2 ), and the swing pages ( 2 ) are related to the base body ( 1 ). 3 . The center is arranged symmetrically up and down, and the page layout (2) coincides on the same vertical line.

3 . The voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 1 , wherein: there is one box door ( 3 ), and the length and width of the box door ( 3 ) is the same as that of the base body. 4 . The length and width of (1) are the same, and the box door (3) forms a rotating mechanism with the base body (1) by swinging the pages (2).

4. A voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 1, characterized in that: there is one glass window (4), and the size of the glass window (4) is smaller than that of the box door (3), and the size of the glass window (4) is equal to the size of the meter (10).

5 . The voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 1 , wherein: there are two bottom anti-skid pads ( 6 ), and the bottom anti-skid pads ( 6 ) are related to the base body ( 5 . 1) The center of the bottom is set symmetrically from left to right, and the surface of the bottom anti-skid pad (6) is rough.

6 . The voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 1 , characterized in that: there is one first range block ( 13 ), and the first range block ( 13 ) and the The second range block (14) is symmetrical about the rotary knife (15), and the rotary knife (15), the first range block (13) and the second range block (14) form an engaging mechanism.

7. A voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 1, characterized in that: there is one first test clip (16), and the first test clip (16) has one The dimensions and specifications are the same as those of the second test clip (35), and the lengths of the wires (17) of the first test clip (16) and the second test clip (35) are the same.

8. A voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 1, characterized in that: there are two support rods (20), and the support rods (20) are related to the base body (1) The center is symmetrically arranged on the left and right, and the support rod (20) and the fixing block (19) constitute a rotating mechanism.

9 . The voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 1 , wherein there are four adjustable brackets ( 21 ), and the adjustable brackets ( 21 ) are related to the base body ( 9 . 1) The center is symmetrically arranged up, down, left and right, and the height of the adjustable bracket (21) is higher than the height of the fixed block (19).