CN213691652U

CN213691652U - PT return circuit ground connection on-line monitoring device's dustproof protection device

Info

Publication number: CN213691652U
Application number: CN202022923849.XU
Authority: CN
Inventors: 耿奎; 薛云; 陈钊
Original assignee: Power Technology Co ltd Nanjing Dahe
Current assignee: Power Technology Co ltd Nanjing Dahe
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-07-13
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses a PT return circuit ground connection on-line monitoring device's dustproof protection device, including voltage transformer body and guard box, voltage transformer body and guard box swing joint just are located the inner chamber of guard box. The utility model discloses an put into the inner chamber of guard box with the voltage transformer body, protect the voltage transformer body, prevent dust the filter screen and prevent dust voltage transformer body and guard box through setting up, avoid the dust to get into, through the pulling arm-tie, the arm-tie drives slide bar and reset spring to the left side motion, break away from telescopic inner chamber through the slide bar, the dustproof filter screen of pulling, dustproof filter screen drives the inner chamber that sleeve and first stopper break away from first spacing groove and second spacing groove, thereby dismantle dustproof filter screen, current PT return circuit earthing device has been solved because the filter screen is not convenient for to dismantle the washing to the filter screen with the protection device structure complicacy, thereby the dust has been increased, the problem of dustproof effect has been reduced.

Description

PT return circuit ground connection on-line monitoring device's dustproof protection device

Technical Field

The utility model relates to a voltage transformer technical field specifically is a PT return circuit ground connection on-line monitoring device's dustproof protection device.

Background

The voltage transformer is called PT for short, and is similar to transformer, and is an instrument for converting voltage on the line, but the purpose of converting voltage by using transformer is to transfer electric energy, so that its capacity is very large, and generally it uses kilovolt-ampere or megavolt-ampere as calculation unit, and the purpose of converting voltage by using transformer is mainly used for supplying power to measuring instrument and relay protection device, and can be used for measuring voltage, power and electric energy of line, or can be used for protecting valuable equipment, motor and transformer in the line when the line is failed, so that the capacity of voltage transformer is very small, and generally it only has several volt-amperes, several tens of volt-amperes, and maximally does not exceed one kilovolt-ampere, and its vocabulary introduces its basic structure, working principle, main type, wiring mode, caution item, exception and treatment and PT resonance, etc., in which the loop grounding device can easily attract dust when it is used, the traditional method is to use the filter screen to prevent dust to PT return circuit earthing device, but uses for a long time, and the filter screen can be covered by the dust, need to dismantle it and go to wash, and current PT return circuit earthing device is not convenient for dismantle the washing to the filter screen because filter screen and protection device structure are complicated to increased the dust, reduced dustproof effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PT return circuit ground connection on-line monitoring device's dustproof protection device, possess dustproof and filter screen dismantlement's of being convenient for advantage, PT return circuit earthing device has been solved and has attracted the dust easily when using, traditional method is to use the filter screen to prevent dust PT return circuit earthing device, but long-time the use, the filter screen can be covered by the dust, it goes to wash to need to dismantle it, current PT return circuit earthing device dismantles the washing to the filter screen because the filter screen is not convenient for with the protection device structure complicacy, thereby the dust has been increased, the problem of dustproof effect has been reduced.

In order to achieve the above object, the utility model provides a following technical scheme: a dustproof protection device of a PT circuit grounding on-line monitoring device comprises a voltage transformer body and a protection box, wherein the voltage transformer body is movably connected with the protection box and is positioned in an inner cavity of the protection box, a louver is arranged on the left side of the protection box, a dustproof filter screen is movably connected with the inner cavity of the protection box, a sleeve is fixedly connected to the left side of the dustproof filter screen, a first limiting block is fixedly connected to the top and the bottom of the sleeve, a support frame is fixedly connected to the upper end and the lower end of the left side of the protection box, a slide bar is slidably connected to the inner cavity of the support frame, a pull plate is fixedly connected to the left end of the slide bar, the right end of the slide bar penetrates through the protection box, extends into the inner cavity of the sleeve and is slidably connected with the inner cavity of the sleeve, a reset spring is sleeved on the, the left end of the reset spring is fixedly connected with the right side of the pulling plate.

Preferably, first spacing groove has all been seted up to the upper end and the lower extreme of guard box inner chamber one side, the sleeve is kept away from dustproof filter screen's one end and is extended to the inner chamber in first spacing groove and with the inner chamber sliding connection in first spacing groove.

Preferably, the top and the bottom of the inner cavity of the first limiting groove are both provided with a second limiting groove, and one end of the first limiting block, which is far away from the sleeve, extends to the inner cavity of the second limiting groove and is in sliding connection with the inner cavity of the second limiting groove.

Preferably, a third limiting groove is formed in the top of the inner cavity of the support frame, a second limiting block is fixedly connected to the top of the sliding rod, and one end, far away from the sliding rod, of the second limiting block extends to the inner cavity of the third limiting groove and is in sliding connection with the inner cavity of the third limiting groove.

Preferably, the surface of the protection box is movably connected with a box door through a hinge, and the left side of the surface of the box door is fixedly connected with a handle.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model protects the voltage transformer body by putting the voltage transformer body into the inner cavity of the protection box, the voltage transformer body and the protection box are protected from dust by arranging the dustproof filter screen, dust is prevented from entering, the pull plate drives the slide bar and the reset spring to move to the left side by pulling the pull plate, the reset spring is deformed, the dustproof filter screen is installed by driving the sleeve and the first stopper to enter the inner cavity of the first limit groove and the second limit groove through the dustproof filter screen, the slide bar is driven to move to the right side to the inner cavity of the sleeve by the reset elasticity of the reset spring, thereby fixing the dustproof filter screen, otherwise, the pull plate drives the slide bar and the reset spring to move to the left side by pulling the pull plate, the slide bar is separated from the inner cavity of the sleeve, the dustproof filter screen is pulled, the dustproof filter screen drives the sleeve and the first stopper to be separated from the inner cavities of the first, thereby dismantle dustproof filter screen, solved PT return circuit earthing device and attracted the dust easily when using, traditional method is to use the filter screen to prevent dust PT return circuit earthing device, but uses for a long time, and the filter screen can be covered by the dust, need remove the washing to its dismantlement, and current PT return circuit earthing device is not convenient for dismantle the washing to the filter screen owing to filter screen and protection device structure are complicated to increased the dust, reduced the problem of dustproof effect.

2. The utility model discloses a set up the chamber door, played the effect of conveniently getting and putting device and filter screen, through setting up sleeve, first stopper, first spacing groove and second spacing groove, played spacing effect to dustproof filter screen, through setting up second stopper and third spacing groove, played the spacing effect to the slide bar.

Drawings

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

FIG. 2 is a schematic structural view of the protection box of the present invention;

fig. 3 is the schematic view of the sectional structure of the protection box and the dustproof filter net.

In the figure: 1. a voltage transformer body; 2. a protection box; 3. a blind window; 4. a dustproof filter screen; 5. a sleeve; 6. a first stopper; 7. a first limit groove; 8. a second limit groove; 9. a support frame; 10. a slide bar; 11. a return spring; 12. pulling a plate; 13. a second limiting block; 14. a third limiting groove; 15. and (4) a box door.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses a voltage transformer body 1, guard box 2, shutter 3, dustproof filter screen 4, sleeve 5, first stopper 6, first spacing groove 7, second spacing groove 8, support frame 9, slide bar 10, reset spring 11, arm-tie 12, second stopper 13, third spacing groove 14 and chamber door 15 part are the general standard or the part that technical personnel in the field know, and its structure and principle all are that this technical personnel all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-3, a dust-proof protection device of a PT loop ground on-line monitoring device comprises a voltage transformer body 1 and a protection box 2, the surface of the protection box 2 is movably connected with a box door 15 through a hinge, the left side of the surface of the box door 15 is fixedly connected with a handle, the upper end and the lower end of one side of the inner cavity of the protection box 2 are both provided with a first limit groove 7, one end of a sleeve 5 away from a dust-proof filter screen 4 extends to the inner cavity of the first limit groove 7 and is connected with the inner cavity of the first limit groove 7 in a sliding manner, the top and the bottom of the inner cavity of the first limit groove 7 are both provided with a second limit groove 8, one end of a first limit block 6 away from the sleeve 5 extends to the inner cavity of the second limit groove 8 and is connected with the inner cavity of the second limit groove 8 in a sliding manner, the voltage transformer body 1 is movably connected with the, a dustproof filter screen 4 is movably connected with the inner cavity of the protection box 2, a sleeve 5 is fixedly connected with the left side of the dustproof filter screen 4, a first limiting block 6 is fixedly connected with the top and the bottom of the sleeve 5, a supporting frame 9 is fixedly connected with the upper end and the lower end of the left side of the protection box 2, a third limiting groove 14 is formed in the top of the inner cavity of the supporting frame 9, a second limiting block 13 is fixedly connected with the top of the sliding rod 10, one end, away from the sliding rod 10, of the second limiting block 13 extends to the inner cavity of the third limiting groove 14 and is in sliding connection with the inner cavity of the third limiting groove 14, a sliding rod 10 is connected with the inner cavity of the supporting frame 9 in a sliding manner, a pulling plate 12 is fixedly connected with the left end of the sliding rod 10, the right end of the sliding rod 10 penetrates through the protection box 2, extends to the inner cavity of the sleeve 5 and is, the left end of a reset spring 11 is fixedly connected with the right side of a pulling plate 12, the voltage transformer body 1 is protected by placing the voltage transformer body 1 into an inner cavity of a protection box 2, the voltage transformer body 1 and the protection box 2 are protected from dust by arranging a dust-proof filter screen 4, dust is prevented from entering, by pulling the pulling plate 12, the pulling plate 12 drives a slide rod 10 and the reset spring 11 to move to the left side, the reset spring 11 is deformed, the sleeve 5 and a first limiting block 6 are driven by the dust-proof filter screen 4 to enter the inner cavities of a first limiting groove 7 and a second limiting groove 8 to install the dust-proof filter screen 4, the slide rod 10 is driven by the reset elasticity of the reset spring 11 to move to the right side to the inner cavity of a sleeve 5, so as to fix the dust-proof filter screen 4, otherwise, by pulling the pulling plate 12, the pulling plate 12 drives the slide rod 10 and the reset spring 11 to move to the left, stimulate dustproof filter screen 4, dustproof filter screen 4 drives sleeve 5 and first stopper 6 and breaks away from the inner chamber of first spacing groove 7 and second spacing groove 8, thereby dismantle dustproof filter screen 4, it attracts the dust easily when using to have solved PT return circuit earthing device, traditional method is to use the filter screen to prevent dust PT return circuit earthing device, but long-time the use, the filter screen can be covered by the dust, it goes to wash to need to dismantle it, current PT return circuit earthing device is not convenient for dismantle the washing to the filter screen because the filter screen is complicated with the protection device structure, thereby the dust has been increased, the problem of dustproof effect has been reduced.

When the dustproof filter screen is used, the voltage transformer body 1 is protected by placing the voltage transformer body 1 into an inner cavity of a protection box 2, the voltage transformer body 1 and the protection box 2 are prevented from dust by arranging the dustproof filter screen 4, dust is prevented from entering the protection box, the pull plate 12 is pulled to drive the slide rod 10 and the reset spring 11 to move towards the left side, the reset spring 11 is deformed, the sleeve 5 and the first limit block 6 are driven by the dustproof filter screen 4 to enter the inner cavities of the first limit groove 7 and the second limit groove 8 to install the dustproof filter screen 4, the slide rod 10 is driven by the reset elasticity of the reset spring 11 to move towards the right side to the inner cavity of the sleeve 5, so that the dustproof filter screen 4 is fixed, otherwise, the pull plate 12 drives the slide rod 10 and the reset spring 11 to move towards the left side by pulling the pull plate 12, the slide rod 10 is separated from the inner cavity of the sleeve 5, dustproof filter screen 4 drives sleeve 5 and first stopper 6 and breaks away from the inner chamber of first spacing groove 7 and second spacing groove 8, thereby dismantle dustproof filter screen 4, it attracts the dust easily when using to have solved PT return circuit earthing device, traditional method is to use the filter screen to prevent dust PT return circuit earthing device, but long-time the use, the filter screen can be covered by the dust, it goes to wash to need to dismantle it, current PT return circuit earthing device is not convenient for dismantle the washing to the filter screen because the filter screen is complicated with the protection device structure, thereby the dust has been increased, the problem of dustproof effect has been reduced.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means of mature bolt, rivet, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, the control mode is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming of technicians in the field, the control circuit belongs to the common knowledge in the field, and the present application document is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the present application.

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 a PT return circuit ground connection on-line monitoring device's dustproof protection device, includes voltage transformer body (1) and guard box (2), its characterized in that: the voltage transformer comprises a voltage transformer body (1), a protection box (2) and a cavity, wherein the cavity is movably connected with the protection box (2), the left side of the protection box (2) is provided with a blind window (3), the cavity is movably connected with a dustproof filter screen (4), the left side of the dustproof filter screen (4) is fixedly connected with a sleeve (5), the top and the bottom of the sleeve (5) are fixedly connected with a first limiting block (6), the left upper end and the lower end of the protection box (2) are fixedly connected with a supporting frame (9), the cavity of the supporting frame (9) is slidably connected with a sliding rod (10), the left end of the sliding rod (10) is fixedly connected with a pulling plate (12), the right end of the sliding rod (10) penetrates through the protection box (2), extends to the cavity of the sleeve (5) and is slidably connected with the cavity of the sleeve (5), and a reset spring (11) is sleeved on the surface of the sliding rod (10), the right end of the reset spring (11) is fixedly connected with the left side of the support frame (9), and the left end of the reset spring (11) is fixedly connected with the right side of the pulling plate (12).

2. The dust-proof protection device of the PT circuit grounding on-line monitoring device of claim 1, characterized in that: first spacing groove (7) have all been seted up to the upper end and the lower extreme of guard box (2) inner chamber one side, the one end that dustproof filter screen (4) were kept away from in sleeve (5) extends to the inner chamber of first spacing groove (7) and with the inner chamber sliding connection of first spacing groove (7).

3. The dust-proof protection device of the PT circuit grounding on-line monitoring device of claim 2, characterized in that: second spacing groove (8) have all been seted up to the top and the bottom of first spacing groove (7) inner chamber, the one end that sleeve (5) were kept away from in first stopper (6) extends to the inner chamber of second spacing groove (8) and with the inner chamber sliding connection of second spacing groove (8).

4. The dust-proof protection device of the PT circuit grounding on-line monitoring device of claim 1, characterized in that: third spacing groove (14) have been seted up at the top of support frame (9) inner chamber, the top fixedly connected with second stopper (13) of slide bar (10), the one end that slide bar (10) were kept away from in second stopper (13) extends to the inner chamber of third spacing groove (14) and with the inner chamber sliding connection of third spacing groove (14).

5. The dust-proof protection device of the PT circuit grounding on-line monitoring device of claim 1, characterized in that: the surface of the protection box (2) is movably connected with a box door (15) through a hinge, and the left side of the surface of the box door (15) is fixedly connected with a handle.