CN111952876A

CN111952876A - Electricity testing and grounding function integrated handcart device

Info

Publication number: CN111952876A
Application number: CN202010733564.1A
Authority: CN
Inventors: 黄勐哲
Original assignee: State Grid Fujian Electric Power Co Ltd; Sanming Power Supply Co of State Grid Fujian Electric Power Co Ltd
Current assignee: State Grid Fujian Electric Power Co Ltd; Sanming Power Supply Co of State Grid Fujian Electric Power Co Ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2020-11-17

Abstract

The invention discloses an electricity testing and grounding function integrated handcart device in the technical field of circuit breaker handcarts, which comprises a base, a panel and an insulating support, wherein the middle part of the base is provided with a handcart in-out operation hole, the inner side of the handcart in-out operation hole is correspondingly provided with a handcart lead screw, the panel is provided with a grounding switch operation hole, the inner side of the grounding switch operation hole is provided with a grounding switch, the insulating support is provided with a current conducting plate and an electricity testing contact, the panel is provided with an electrified display, the inner side detection end of the electrified display is electrically connected with the current conducting plate through a contact type sensor, and the electricity testing contact is electrically connected with the current conducting plate through a height adjusting mechanism; the electricity testing device and the grounding device of the integrated handcart device are reasonably distributed in position, and the integrated handcart device is simple in structure, flexible to operate, economical and practical and meets regulation regulations.

Description

Electricity testing and grounding function integrated handcart device

Technical Field

The invention relates to the technical field of circuit breaker handcart equipment, in particular to an electricity testing and grounding function integrated handcart device.

Background

With the continuous development of power technology, under the current condition, 6-35kV equipment is generally a metal armored cabinet, how to directly test electricity and ground the work of buses and circuits with the same voltage level is a great problem which puzzles operation management units for a long time, the buses or circuits of the existing switch cabinet are overhauled, tested and grounded by two independent hand carts, and the important potential safety hazards of no complete electrical and mechanical anti-misoperation locking function, complex operation, long time and the like exist.

The generating line is tested electricity by cold reserve switching operation "use the electricity inspection car in PT switch cabinet side static contact department, will connect the earthing car to push into to" switch on "position after having confirmed no voltage, need push" electricity inspection handcart "when testing electricity and open and test electricity with the electrography after the baffle, tests electricity the process and mainly opens cubical switchboard static contact baffle with the electricity inspection car (valve drives the car), then tests electricity on static contact with the electrography. At the moment, because the static contact which is possibly electrified is exposed in front of the operator, the personal safety of the operator in the electricity testing process is difficult to ensure, and after the electricity is tested, the electricity testing handcart needs to be pulled out and then pushed into the grounding handcart, so that the field operation steps are more, time and labor are wasted.

Based on the design, the invention designs the integrated handcart device with the electricity testing and grounding functions to solve the problems.

Disclosure of Invention

The invention aims to provide an electricity testing and grounding function integrated handcart device to solve the technical problem.

In order to realize the purpose, the invention provides the following technical scheme: an electricity-testing and grounding function integrated handcart device comprises a base, wherein a panel and an insulating bracket are respectively arranged on the front side and the rear side of the base, a handcart in-out operation hole is arranged in the middle of the base, a handcart screw rod for controlling the handcart to move in and out is correspondingly arranged inside the handcart in-out operation hole, the panel is provided with a grounding knife switch operating hole, the inner side of the grounding knife switch operating hole is provided with a grounding knife switch through bevel gear group transmission, the soft copper wire of the grounding knife switch is fixedly connected with the base in a conduction way, the base is reliably grounded through a grounding copper bar of the switch cabinet body, the insulating bracket is provided with a conductive plate which is provided with a conductive static contact capable of being contacted and conducted with the grounding knife switch when the grounding knife switch is switched on, the conductive plate is electrically connected with three electricity testing contacts arranged side by side, the panel is provided with an electrified display, the inner side detection end of the electrified display is electrically connected with the conductive plate through a contact type sensor;

the electricity testing contact is electrically connected with the conducting plate through the height adjusting mechanism; handcart business turn over handle hole inboard is provided with prevents taking the earthing cutter to test electric mechanism, earthing switch handle hole inboard is provided with prevents taking the earthing cutter mechanism that closes.

Preferably, height adjustment mechanism includes that two set up respectively in the sliding guide of insulating support inner wall left and right sides, both sides sliding guide is last to have a lifting slide through slider movable mounting, and is three test electrical contact fixed mounting in on the lifting slide, set up on the current conducting plate three with test the spout that electrical contact corresponds, test electrical contact lift adjustment to arbitrary adjustable height after through the screw with spout fixed electrical connection.

Preferably, a plurality of positioning locking holes are formed in the sliding guide rail at different height positions, and a locking screw capable of being matched and locked with one of the positioning locking holes is screwed on the sliding block.

Preferably, it includes chassis car jam plate to prevent to take the earthing switch to test electric mechanism, spacing handle structure has on the chassis car jam plate, the bottom of spacing handle structure has spacing most advanced, chassis car jam plate rotate install in the round pin epaxial of base, round pin axle outer wall cover is equipped with and is used for the order spacing handle resets the torsional spring that bounces, be provided with on the base and prevent to take the earthing switch to test the electro-magnet, prevent to take the iron core of earthing switch to test the electro-magnet stretch out the back block in spacing handle top still includes electric connection in prevent to take the auxiliary switch of earthing switch in the earthing switch control circuit of earthing switch, the auxiliary switch of earthing switch set up in earthing switch department, drive behind the earthing switch the auxiliary switch disconnection of earthing switch prevents to take the control circuit of earthing switch to test the electro-magnet.

Preferably, prevent that electrified earthing switch mechanism from closing including setting up the inboard lifting baffle of ground connection switch handle hole, lifting baffle's top through draw the lift spring with the inboard connection of hanging of panel, lifting baffle's front is provided with ground connection sword handle hole shell fragment, and ground connection sword handle hole shell fragment top has the pore structure, when lifting baffle overcomes and draws the lift spring elasticity to push down the removal the trompil of ground connection sword handle hole shell fragment top with ground connection switch handle hole corresponds, the panel inboard is provided with prevents electrified earthing switch electro-magnet that closes, prevent to block when the iron core that electrified earthing switch electro-magnet stretches out in lifting baffle's bottom, through string electrified display contact extremely prevent electrified earthing switch electro-magnet control circuit control that closes the flexible of electrified earthing switch electro-magnet.

Preferably, a closing indicator lamp and a buzzer are arranged on the panel, and the closing indicator lamp and the buzzer are electrically connected with the live display circuit.

Preferably, an observation window is arranged on the panel, and the observation window corresponds to the grounding knife switch in position.

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

the electricity testing and grounding integrated handcart device realizes the integration of electricity testing and grounding: the positions of the electricity testing device and the grounding device are reasonably distributed in the same device, so that the device is simple in structure, flexible to operate, economical and practical and meets regulation regulations.

The invention discloses an electricity testing and grounding function integrated handcart device integrity inspection: the sound and light inspection, the voice alarm and the integrity inspection of the electricity inspection device are realized through the contact type sensor, the electrified display device and the buzzer.

The invention discloses an electricity testing and grounding function integrated handcart device, which is provided with a height adjusting mechanism: test that the electrical contact is adjustable through high adjustment mechanism and the current conducting plate is connected in not co-altitude department and switches on, makes the device can with the not co-altitude static contact cooperation of the different model cabinets body, satisfies the bus side and tests electric ground connection function with the line side, and hoisting device uses compatibly.

The invention discloses an electricity testing and grounding function integrated handcart device, which is provided with an electricity testing mechanism for preventing an electrified grounding switch: the handcart is provided with an electricity testing electromagnet for preventing the earthing switch from being taken, an auxiliary switch contact of the earthing switch is connected in series to a control loop of the electricity testing electromagnet for preventing the earthing switch from being taken, the handcart lead screw is locked by the electricity testing electromagnet for preventing the earthing switch from being taken, the handcart is limited to enter and exit, and the handcart can be prevented from being pushed into a trolley to test electricity under the condition of closing the earthing switch.

The integrated handcart device with the electricity testing and grounding functions has a mechanism for preventing the electrification and grounding cutter closing: the handcart is provided with an electromagnet for preventing the electrified grounding switch from being closed, which controls the opening of the grounding switch hole, and the grounding switch can be prevented from being closed under the electrified condition by connecting the contact of the electrified display to the electromagnet loop for preventing the electrified grounding switch.

The panel of the handcart device integrating the electricity testing and grounding functions is provided with the observation window, the observation window is opposite to the grounding disconnecting link in position, the state of the grounding disconnecting link can be directly observed through the observation window, and the position of the grounding disconnecting link can be conveniently, visually and accurately checked.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the internal side structure of the present invention;

FIG. 3 is a schematic view of the height adjustment mechanism of the present invention;

FIG. 4 is a schematic structural diagram of an electricity testing mechanism for preventing a belt scraper of the present invention;

FIG. 5 is a schematic structural diagram of the grounding switch mechanism for preventing electrification;

fig. 6 is a schematic structural view of a chassis lock plate according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-base, 2-panel, 3-insulating bracket, 4-handcart screw rod, 41-handcart screw rod, 5-grounding knife switch operation hole, 6-bevel gear set, 7-grounding knife switch, 8-conductive plate, 81-chute, 82-conductive static contact, 9-electroscope contact, 10-live display, 11-contact sensor, 12-height adjusting mechanism, 13-earth knife electroscope mechanism, 14-earth knife mechanism, 15-switch-on indicator lamp, 16-buzzer and 17-observation window;

121-sliding guide rail, 122-sliding block, 123-lifting sliding plate, 124-positioning locking hole and 125-locking screw;

131-chassis vehicle locking plate, 132-limit tip, 133-torsion spring, 134-electroscope with ground knife, 135-limit handle;

141-lifting baffle, 142-lifting spring, 143-grounding knife operation hole elastic sheet, 144-electromagnet for preventing electrification of grounding knife.

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. 1-2, the present invention provides a technical solution: an electricity testing and grounding function integrated handcart device comprises a base 1, wherein a panel 2 and an insulating support 3 are respectively arranged on the front side and the rear side of the base 1, the insulating support 3 is used for mounting and supporting an electricity testing contact connected with a static contact of a switch cabinet body during bus or line maintenance, the insulating support 3 can be made of epoxy resin materials, the dielectric property of the epoxy resin materials is good, the dielectric loss factor is less than 0.5% at 20 ℃, and the temperature of 180 ℃ is less than 3%; the paint film has lower water absorption, about 0.25 percent of water absorption, and has the characteristics of good electrical insulation performance, high compressive strength and excellent mechanical performance; a handcart in-out operation hole 41 is formed in the middle of the base 1, a handcart screw rod 4 for controlling the handcart to move in and out is correspondingly arranged on the inner side of the handcart in-out operation hole 41, a grounding disconnecting link operation hole 5 is formed in the panel 2, a grounding disconnecting link 7 is arranged on the inner side of the grounding disconnecting link operation hole 5 in a transmission mode through a bevel gear set 6, an external grounding disconnecting link operation handle (not numbered in the drawing) is inserted into the grounding disconnecting link operation hole 5 to swing, and the grounding disconnecting link 7 can be driven to be switched on through the bevel gear set 6 in a transmission mode; the annealed copper wire of the grounding knife switch 7 is fixedly connected with the base 1 in a conduction way, the base 1 is reliably grounded through a grounding copper bar of a switch cabinet body, the insulating bracket 3 is provided with a current conducting plate 8, the current conducting plate 8 is provided with a current conducting static contact 82 which can be contacted and conducted with the grounding knife switch 7 when the grounding knife switch 7 is switched on, the grounding knife switch is contacted with the current conducting plate 8 through the static contact when the grounding knife switch is switched on, the grounding knife switch is firmly and reliably contacted with the static contact on the current conducting plate when the grounding knife switch is switched on, a line or a bus is grounded through the static contact at the side of the switch cabinet, an electricity testing contact 9, the static contact on the current conducting plate 8, the grounding knife switch 7, the annealed copper wire, a chassis vehicle (the base 1) and the grounding copper bar of the switch cabinet body, the current conducting plate 8 is electrically connected with three electricity testing contacts 9 which are arranged side by side, and used for contacting and testing electricity with, the contact type sensor 11 converts the three-phase voltage of the bus or the line into low voltage to provide low voltage for the electrified display, the electrified display 10 displays the existence or nonexistence of the three phases of the bus or the line for maintenance, and the three phases of the bus or the line are connected in series into a control loop of preventing the electrified grounding switch mechanism 14 from locking the electromagnet; in addition, the panel 2 is also provided with a secondary plug, after the trolley enters the cabinet body, the secondary plug is connected with a socket on the cabinet body, power is supplied from a small bus on the top of the cabinet, a power supply is provided for an electrified display, a buzzer, a locking electromagnet and the like, a secondary loop is communicated, the position of the handcart and the position of the grounding disconnecting link are collected, and the handcart position and the grounding disconnecting link are uploaded to a state indicator and a dispatching system.

The electricity testing contact 9 is electrically connected with the conductive plate 8 through the height adjusting mechanism 12; the handcart in-and-out operation hole 41 is internally provided with an electricity testing mechanism 13 for preventing electrification of the grounding knife, and the grounding knife switch operation hole 5 is internally provided with an electricity closing prevention mechanism 14.

Referring to fig. 3, the height adjusting mechanism 12 includes two sliding rails 121 respectively disposed on the left and right sides of the inner wall of the insulating support 3, a lifting slide plate 123 is movably mounted on the sliding rails 121 on the two sides through a slider 122, three electricity testing contacts 9 are fixedly mounted on the lifting slide plate 123, three sliding slots 81 corresponding to the electricity testing contacts 9 are formed in the conducting plate 8, and the electricity testing contacts 9 are fixedly electrically connected to the sliding slots 81 through screws after being lifted and adjusted to any adjustable height; it tests electrical contact 9 to be equipped with on lift slide 123, it has the internal thread hole to test electrical contact 9 bottom and open, spout 81 width and the cooperation of internal thread hole diameter opened at the middle part of current conducting plate 8, pass spout 81 back screw in internal thread hole of current conducting plate 8 with the bolt and will test electrical contact and current conducting plate fixed, because static contact high position in the cubical switchboard of different model specifications is different, it connects and switches on to test electrical contact 9 through height adjusting mechanism 12 is adjustable to be connected with current conducting plate 8 in not co-altitude department, make the device can with the co-altitude static contact cooperation of the different height of the cabinet body of different models, satisfy the bus side and circuit side test electric ground connection function, hoisting device uses compatibly.

Furthermore, a plurality of positioning locking holes 124 are formed in different height positions on the sliding guide rail 121, a locking screw 125 which can be matched and locked with one of the positioning locking holes 124 is screwed on the sliding block 122, the electricity testing contact 9 is mounted on the lifting sliding plate 123, and the lifting sliding plate 123 can move on the sliding guide rail 121 to adjust the height and pass through the locking screw 125.

Referring to fig. 4 and 6, the ground knife electricity inspection preventing mechanism 13 includes a chassis lock plate 131, one end of the chassis lock plate 131 is provided with a limit handle 135, the bottom of the limit handle 135 is provided with a limit tip 132, the chassis lock plate 131 is rotatably mounted on a pin shaft of the base 1, a torsion spring 133 is sleeved on the outer wall of the pin shaft, the base 1 is provided with an electricity inspection preventing electromagnet 134 with a ground knife, the iron core of the electricity inspection preventing electromagnet with a ground knife 134 is prevented from being blocked above the limit handle 135 after extending out, and the ground knife electricity inspection preventing mechanism further includes an auxiliary switch electrically connected to a ground knife in a control loop of the electricity inspection preventing electromagnet with a ground knife 134, the auxiliary switch of the ground knife is arranged at the ground knife 7, and the auxiliary switch driving the ground knife after the ground knife 7 is switched on is switched off to prevent the control loop of the electricity inspection preventing electromagnet with;

prevent to take the earthing switch to test electric shutting control circuit through the auxiliary switch contact of cabinet top little generating line-secondary plug-ground connection switch-prevent to take the earthing switch to test electric magnet 134, the control electromagnet iron core is flexible, under the circumstances that ground connection switch 7 closed, the spacing handle 135 of chassis car is blocked unable bounce by the iron core, spacing most advanced 132 card is in handcart lead screw 4's thread groove, handcart lead screw 4 is unable to rotate, then the handcart can not push the cubical switchboard cabinet and test the electricity, realize preventing to take the earthing switch to test the purpose of electricity.

Referring to fig. 5, the anti-electrification grounding switch mechanism 14 includes a lifting baffle 141 disposed inside the grounding switch operation hole 5, the top of the lifting baffle 141 is connected to the inside of the panel 2 by a pull-up spring 142, a grounding switch operation hole elastic sheet 143 is disposed on the front surface of the lifting baffle 141, the grounding switch operation hole elastic sheet 143 is opened corresponding to the grounding switch operation hole 5 when the lifting baffle 141 is pressed down to move against the elastic force of the pull-up spring 142, an anti-electrification grounding switch electromagnet 144 is disposed inside the panel 2, the iron core of the anti-electrification grounding switch electromagnet 144 is blocked at the bottom of the lifting baffle 141 when extending out, and the anti-electrification grounding switch electromagnet 144 is controlled by a control loop from a contact point of the electrification display 10 to the anti-electrification grounding switch electromagnet 144 to prevent the electrification grounding switch electromagnet 144 from extending and;

the control loop for preventing the locking of the electrified grounding switch knife passes through a cabinet top small bus, a secondary plug, a contact of the electrified display 10, the electromagnet 144 for preventing the electrified grounding switch knife, and controls the iron core of the electromagnet 144 for preventing the electrified grounding switch knife from stretching. When the static contact of the switch cabinet is proved to be electrified, the lifting baffle 141 is blocked by the iron core of the electromagnet 144 for preventing the electrified grounding switch from being closed, the elastic sheet 143 of the grounding switch operation hole cannot be pressed down, the grounding switch operation handle cannot be inserted into the grounding switch operation hole 5, and the grounding switch 7 cannot be closed, so that the aim of preventing the electrified grounding switch from being closed is fulfilled.

Referring to fig. 1, a closing indicator 15 and a buzzer 16 are arranged on a panel 2, the closing indicator 15 and the buzzer 16 are electrically connected with a circuit of an electrified display 10, an electricity testing loop is formed by a circuit or a bus passing through a fixed contact at the side of a switch cabinet, an electricity testing contact 9, a conductive plate 8, a contact type sensor 11 and the electrified display 10, when electricity is tested to be electrified, acousto-optic inspection, voice alarm and integrity inspection of the electricity testing device are realized through the electrified display device 10 and the buzzer 16, and the closing indicator 15 is used for displaying the on-off condition of a grounding knife switch 7; the panel 2 is provided with an observation window 17, the observation window 17 corresponds to the position of the grounding switch 7, the state of the grounding switch 7 can be directly observed through the observation window 17, and the position of the grounding switch can be conveniently, visually and accurately checked.

In the description of the invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "two ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the invention.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the terms in the invention is understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electricity test ground connection function integration handcart device which characterized in that: comprises a base (1), a panel (2) and an insulating support (3) are respectively arranged on the front side and the rear side of the base (1), a handcart in-out operation hole (41) is arranged in the middle of the base (1), a handcart screw rod (4) for controlling the handcart to move in and out is correspondingly arranged on the inner side of the handcart in-out operation hole (41), a grounding switch operation hole (5) is arranged on the panel (2), a grounding switch (7) is arranged on the inner side of the grounding switch operation hole (5) in a transmission way through a bevel gear set (6), a soft copper wire of the grounding switch (7) is fixedly connected with the base (1) in a conduction way, the base (1) is reliably grounded through a switch cabinet body grounding copper bar, a conductive plate (8) is arranged on the insulating support (3), a conductive static contact (82) which can be in contact conduction with the grounding switch (7) when the conductive plate is switched on, the electric connection of the conducting plate (8) is provided with three electricity testing contacts (9) which are arranged side by side, the panel (2) is provided with an electrified display (10), and the inner side detection end of the electrified display (10) is electrically connected with the conducting plate (8) through a contact type sensor (11);

the electricity testing contact (9) is electrically connected with the conductive plate (8) through the height adjusting mechanism (12); handcart business turn over handle hole (41) inboard is provided with prevents taking the earthing switch electroscope to construct (13), earthing switch handle hole (5) inboard is provided with prevents taking the earthing switch mechanism (14) that closes.

2. The integrated handcart device with the electricity testing and grounding functions as claimed in claim 1, wherein: height adjusting mechanism (12) include that two set up respectively in sliding guide (121) of insulating support (3) inner wall left and right sides, both sides sliding guide (121) are gone up through slider (122) movable mounting has lift slide (123), and is three test electrical contact (9) fixed mounting in on lift slide (123), seted up on conductive plate (8) three with test spout (81) that electrical contact (9) correspond, test electrical contact (9) lift adjustment to arbitrary adjustable height after through the screw with spout (81) fixed electrical connection.

3. The integrated handcart device with the electricity testing and grounding functions as claimed in claim 2, wherein: a plurality of positioning locking holes (124) are formed in the sliding guide rail (121) at different height positions, and a locking screw (125) which can be matched and locked with one of the positioning locking holes (124) is screwed on the sliding block (122).

4. The integrated handcart device with the electricity testing and grounding functions as claimed in claim 1, wherein: the electricity testing mechanism (13) for preventing the belt cutter comprises a chassis lock plate (131), the chassis lock plate (131) is provided with a limit handle (135) structure, the bottom of the limiting handle (135) structure is provided with a limiting tip (132), the chassis lock plate (131) is rotatably arranged on a pin shaft of the base (1), the outer wall of the pin shaft is sleeved with a torsion spring (133), the base (1) is provided with an electroscope (134) for preventing the earthing switch from being worn, the iron core of the electroscope with earthing knife (134) is blocked above the limit tip (132) after extending out, the device also comprises an auxiliary switch electrically connected with an earthing knife switch in a control loop of the electroscope with earthing knife (134), the auxiliary switch of the grounding knife switch is arranged at the position of the grounding knife switch (7), and the auxiliary switch of the grounding knife switch is driven to disconnect after the grounding knife switch (7) is switched on so as to prevent a control loop with a grounding knife electroscope (134).

5. The integrated handcart device with the electricity testing and grounding functions as claimed in claim 1, wherein: prevent that electrified earthing switch mechanism (14) from closing earthing switch mechanism (14) is including setting up lifting baffle (141) inboard earthing switch handle hole (5), lifting baffle (141)'s top through draw-up spring (142) with panel (2) inboard string puts the connection, lifting baffle (141)'s front is provided with earthing switch handle hole shell fragment (143), and earthing switch handle hole shell fragment top has the pore structure, when lifting baffle (141) overcome draw-up spring (142) elasticity and push down the removal earthing switch handle hole shell fragment (143) correspond earthing switch handle hole (5) are opened, panel (2) inboard is provided with prevents electrified earthing switch electro-magnet (144) that closes, prevent to block when the iron core that electrified earthing switch electro-magnet (144) stretches out in the bottom of lifting baffle (141), through striing into electrified display (10) contact extremely prevent that electrified earthing switch control circuit control of earthing switch electro-magnet (144) prevents to close earthing switch electro-magnet (144) that electrified switch off ) And (4) stretching and retracting.

6. The integrated handcart device with the electricity testing and grounding functions as claimed in claim 1, wherein: the panel (2) is provided with a closing indicator lamp (15) and a buzzer (16), and the closing indicator lamp (15) and the buzzer (16) are electrically connected with the circuit of the electrified display (10).

7. The integrated handcart device with the electricity testing and grounding functions as claimed in claim 1, wherein: an observation window (17) is arranged on the panel (2), and the observation window (17) corresponds to the grounding disconnecting link (7).