Pressure monitoring device for disconnector in power plant

Abstract

The power plant isolating switch pressure monitoring device of the present invention comprises: a box body, the box body has a placement cavity, a first opening facing upward is opened on the top of the box body, the first opening is connected to the placement cavity, a cover plate for covering the first opening is provided on the box body, the width direction of the box body is the first direction, the thickness direction of the box body is the second direction, and any two of the first direction, the second direction and the up and down directions are perpendicular to each other; a monitoring body, the monitoring body is arranged in the placement cavity of the box body; a driving part, the driving part can drive the cover plate to move in the up and down direction, and the driving part can drive the monitoring body to move in the up and down direction so that the monitoring body can extend out of the box body from the first opening; a bearing platform, the bearing platform is arranged in the placement cavity of the box body, and the bearing platform is used to support the monitoring body. Therefore, the power plant isolating switch pressure monitoring device of the present invention has the advantages of facilitating the maintenance of the monitoring body and increasing the life of the monitoring body.

Description

Technical Field

[0001] The invention relates to the technical field of switch pressure monitoring, and in particular to a pressure monitoring device for an isolating switch in a power plant. Background Art

[0002] The isolating switch is a high-voltage electrical appliance, also known as an isolating knife switch. Its main function is to ensure the safety of high-voltage electrical appliances and devices during maintenance work, and to isolate the voltage. The contact finger is a key component of the isolating switch. The size of the contact finger pressure will affect the contact resistance value and the temperature of the contact. The contact temperature will further affect the performance of the spring that provides pressure for the contact finger. The quality of the spring performance is not only directly related to the service life of the isolating switch, but also affects the safe operation of the high-voltage transmission and transformation network. Therefore, it is very necessary to monitor the contact finger pressure. In the related technology, a protective box is generally set to protect the monitoring subject, but the protective box is generally just matched with the size of the monitoring subject. When the monitoring subject fails, it is difficult to quickly take it out for maintenance, which is not convenient for the staff to carry out maintenance work, and affects the subsequent high-voltage testing work; in addition, the current protective box lacks ventilation devices, and the monitoring subject may be damp, which affects the service life of the monitoring subject. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a pressure monitoring device for a power plant isolating switch.

[0004] The power plant isolating switch pressure monitoring device according to the embodiment of the present invention comprises:

[0005] A box body, wherein the box body has a placement cavity, a first opening is formed on the top of the box body and faces upward, the first opening is communicated with the placement cavity, a cover plate for covering the first opening is provided on the box body, the width direction of the box body is a first direction, the thickness direction of the box body is a second direction, and any two of the first direction, the second direction and the up-down direction are perpendicular to each other;

[0006] A monitoring body, the monitoring body being arranged in the placement cavity of the box body;

[0007] a driving part, wherein the driving part can drive the cover plate to move in the up-down direction, and the driving part can drive the monitoring body to move in the up-down direction so that the monitoring body can extend out of the box body from the first opening;

[0008] A bearing platform, the bearing platform is arranged in the placement cavity of the box body, and the bearing platform is used to support the monitoring body.

[0009] Therefore, the power plant isolating switch pressure monitoring device according to the embodiment of the present invention has the advantages of being easy to inspect and repair the monitoring body and being able to increase the life of the monitoring body.

[0010] In some embodiments, the driver includes a first motor and a first screw, the length direction of the first screw is the up and down direction, the first screw is rotatably disposed in the box body, the first motor can drive the first screw to rotate, and the first screw can drive the monitoring body to move in the up and down direction.

[0011] In some embodiments, the monitoring body is provided with a first sliding sleeve on both sides of the first direction;

[0012] The driver comprises two first lead screws, and the two first lead screws are respectively connected to the two first sliding sleeves for lead screw transmission;

[0013] The first motor is connected to one of the first screws, and the two first screws are connected via a synchronous belt;

[0014] A support rod is disposed on the upper side of each of the first sliding sleeves, and the top of the support rod is connected to the cover plate.

[0015] In some embodiments, a first installation cavity is provided at the bottom of the box body, the first installation cavity is a rectangular cavity, the length direction of the first installation cavity is the first direction, and the width direction of the first installation cavity is the second direction;

[0016] The bottoms of the two first lead screws extend into the first mounting cavity, a driving wheel is provided at the bottom of one of the two first lead screws, and a driven wheel is provided at the bottom of one of the two first lead screws. The driving wheel and the driven wheel are connected by the synchronous belt, and the first motor is provided at the bottom of the box body and can drive the driving wheel to rotate.

[0017] In some embodiments, the box body is provided with two slide grooves, the slide grooves extend in the up-down direction, the two slide grooves are located on both sides of the placement cavity, and the openings of the two slide grooves are arranged opposite to each other in the first direction;

[0018] The two first sliding sleeves are slidably disposed in the two sliding grooves respectively along the up-down direction, and the shape and size of the first part of the first sliding sleeve located in the sliding groove are adapted to the shape and size of the sliding groove.

[0019] In some embodiments, projections of cross sections of the slide groove and the first portion of the first slide sleeve located in the slide groove in vertical and up-down directions are both rectangular.

[0020] In some embodiments, the bottom of the placement cavity is provided with two second grooves spaced apart in the first direction, and the openings of the second grooves face upward;

[0021] The length direction of the second slot body is the first direction, and each of the second slot bodies is provided with a support portion;

[0022] The supporting part includes a sliding rod, a second sliding sleeve, a spring and a rotating rod, the sliding rod extending along the first direction, the second sliding sleeve being slidably arranged on the sliding rod along the first direction, the spring being sleeved on the sliding rod, the two ends of the spring respectively abutting against the wall surface of the second groove body and the second sliding sleeve, the two springs of the two supporting parts can use elastic force to move the two second sliding sleeves in the first direction to adjacent directions, one end of the rotating rod is hinged to the top of the second sliding sleeve, the other end of the rotating rod is hinged to the bottom of the supporting platform, the rotation axis of the hinge point of the rotating rod is the second direction, and the bottom of the supporting platform and the hinge point of the two rotating rods are located between the two second sliding sleeves in the first direction.

[0023] In some embodiments, the cover plate has a through hole penetrating therethrough in the up-down direction, a filter is provided in the through hole, and a thickness direction of the filter is in the up-down direction.

[0024] In some embodiments, a second motor is provided in the through hole, and the second motor is connected to the inner wall surface of the through hole through two fixing rods. The fan blades are on the rotating shaft of the second motor, and the rotating shaft of the second motor is located below the second motor and extends in the up and down direction. The rotating shaft of the second motor can drive the fan blades to rotate so as to ventilate the placement cavity.

[0025] In some embodiments, two cleaning parts are provided in the through hole and are located on both sides of the second motor in the second direction, each of the cleaning parts includes a slide plate, a cleaning brush and a second lead screw, the length direction of the slide plate is the first direction, the second lead screws extend along the second direction, the second lead screws and the slide plate are driven by a lead screw, the slide plate is connected to the cleaning brush through a connecting rod, the top of the cleaning brush abuts against the filter, the length direction of the cleaning brush is the first direction, the cleaning brushes are slidingly connected to the side walls of the through hole in the first direction on both sides of the first direction, a first bevel gear is provided on the rotating shaft of the second motor, each of the second lead screws is provided with a second bevel gear, and the second bevel gears of the two cleaning parts are meshed with the first bevel gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of a pressure monitoring device for a power plant isolating switch according to an embodiment of the present invention.

[0027] Figure 2 4 is a cross-sectional view of a pressure monitoring device for a power plant isolating switch according to an embodiment of the present invention.

[0028] Figure 3 is a schematic diagram of a carrier platform according to an embodiment of the present invention.

[0029] Figure 4 is a schematic diagram of a cover plate according to an embodiment of the present invention.

[0030] Figure 5 is a schematic diagram of a fan blade according to an embodiment of the present invention.

[0031] Figure numerals: 1, box body, 2, first installation cavity, 3, slide groove, 4, first motor, 5, first lead screw, 6, first slide sleeve, 7, support rod, 8, cover plate, 9, driving wheel, 10, driven wheel, 11, synchronous belt, 12, second slot body, 13, slide rod, 14, spring, 15, second slide sleeve, 16, rotating rod, 17, bearing platform, 18, monitoring body, 19, through hole, 20, filter screen, 21, fixing rod, 22, second motor, 23, rotating shaft, 24, first bevel gear, 25, second lead screw, 26, slide plate, 27, connecting rod, 28, cleaning brush, 29, second bevel gear, 30, fan blade. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] The following describes the power plant isolating switch pressure monitoring device according to an embodiment of the present invention with reference to the accompanying drawings. Figures 1 to 5 As shown, the power plant disconnector pressure monitoring device according to an embodiment of the present invention includes a box body 1, a monitoring body 18, a driving part and a bearing platform 17.

[0034] The box body 1 has a placement cavity, a first opening is formed on the top of the box body 1, and the first opening is communicated with the placement cavity. A cover plate 8 for covering the first opening is provided on the box body 1. The width direction of the box body 1 is the first direction, and the thickness direction of the box body 1 is the second direction. Any two of the first direction, the second direction, and the up-down direction are perpendicular to each other. For example, the width direction of the box body 1 is the left-right direction, and the thickness direction of the box body 1 is the front-back direction.

[0035] The monitoring body 18 is disposed in the placement cavity of the box body 1 , and the bearing platform 17 is disposed in the placement cavity of the box body 1 . The bearing platform 17 is used to support the monitoring body 18 .

[0036] The driving part can drive the cover plate 8 to move in the up-down direction, and the driving part can drive the monitoring body 18 to move in the up-down direction so that the monitoring body 18 can extend out of the box body 1 from the first opening.

[0037] like Figures 1 to 5 As shown, in some embodiments, the drive includes a first motor 4 and a first lead screw 5 .

[0038] The length direction of the first lead screw 5 is the up-down direction. The first lead screw 5 is rotatably arranged in the box body 1. The first motor 4 can drive the first lead screw 5 to rotate, and the first lead screw 5 can drive the monitoring body 18 to move in the up-down direction. Specifically, the monitoring body 18 is provided with a first sleeve 6 on both sides of the first direction. The driver includes two first lead screws 5, and the two first lead screws 5 are respectively screw-driven with the two first sleeves 6, that is, the first sleeve 6 is threadedly connected with the first lead screw 6. For example, the monitoring body 18 is provided with a first sleeve 6 on both sides of the left-right direction. A part of the housing of the monitoring body 18 is detachably connected to the first sleeve 6.

[0039] like Figure 2 As shown, two slide grooves 3 are provided in the box body 1, and the slide grooves 3 extend in the up-down direction. The two slide grooves 3 are located on both sides of the placement cavity in the first direction. The openings of the two slide grooves 3 are arranged oppositely in the first direction, and the slide grooves 3 are connected to the placement cavity. Two first slide sleeves 6 are slidably arranged in the two slide grooves 3 in the up-down direction respectively, and the shape and size of the first part of the first slide sleeve 6 located in the slide groove 3 are adapted to the shape and size of the slide groove 3. Therefore, when the first lead screw 5 rotates, the two slide grooves 3 can limit the two first slide sleeves 6, so that the first lead screw 5 drives the first slide sleeve 6 and the monitoring body 18 to move in the up-down direction. For example, the openings of the two slide grooves 3 are arranged oppositely in the left-right direction.

[0040] In some embodiments, the cross-sectional projections of the first part of the slide groove 3 and the first slide sleeve 6 located in the slide groove 3 in the vertical and up-down directions are both rectangular. For example, the cross-sectional area of ​​the slide groove 3 is rectangular.

[0041] The first motor 4 is connected to a first lead screw 5, and the two first lead screws 5 are connected by a synchronous belt 11. Specifically, a first installation cavity 2 is provided at the bottom of the box body 1, and the first installation cavity 2 is a rectangular cavity. The length direction of the first installation cavity 2 is the first direction, and the width direction of the first installation cavity 2 is the second direction. The bottoms of the two first lead screws 5 are both extended into the first installation cavity 2, and a driving wheel 9 is provided at the bottom of one of the two first lead screws 5, and a driven wheel 10 is provided at the bottom of one of the two first lead screws 5. The driving wheel 9 and the driven wheel 10 are connected by a synchronous belt 11. The first motor 4 is provided at the bottom of the box body 1 and can drive the driving wheel 9 to rotate. The driving wheel 9 can drive the driven wheel 10 to rotate through the synchronous belt 11, so that the two first lead screws 5 can rotate. For example, the length direction of the first installation cavity 2 is the left-right direction, and the width direction of the first installation cavity 2 is the front-back direction. The driving wheel 9, the driven wheel 10 and the synchronous belt 11 are all provided with teeth, which increases the friction between the driving wheel 9, the driven wheel 10 and the synchronous belt 11, and improves the transmission effect.

[0042] A support rod 7 is disposed on the upper side of each first sliding sleeve 6, and the top of the support rod 7 is connected to the cover plate 8. Thus, when the first sliding sleeve 6 moves upward, the support rod 7 can drive the cover plate 8 to move upward.

[0043] In some embodiments, the bottom of the placement cavity is provided with two second grooves 12 spaced apart in the first direction, and the opening of the second grooves 12 faces upward. The length direction of the second grooves 12 is the first direction, and a support portion is provided in each second groove 12. For example, the bottom of the placement cavity is provided with two second grooves 12 spaced apart in the left-right direction, and the second grooves 12 are rectangular grooves.

[0044] like Figure 2 and Figure 3 As shown, each supporting portion includes a sliding rod 13 , a second sliding sleeve 15 , a spring 14 and a rotating rod 16 .

[0045] The slide bar 13 extends along the first direction, the second slide sleeve 15 is slidably arranged on the slide bar 13 along the first direction, and the spring 14 is sleeved on the slide bar 13. The two ends of the spring 14 are respectively in contact with the wall surface of the second slot 12 and the second slide sleeve 15, and the two springs 14 of the two supporting parts can use elastic force to move the two second slide sleeves 15 in the first direction to the direction adjacent to each other. One end of the rotating rod 16 is hinged to the top of the second slide sleeve 15, and the other end of the rotating rod 16 is hinged to the bottom of the bearing platform 17. The rotation axis of the hinge point of the rotating rod 16 is the second direction, and the bottom of the bearing platform 17 and the hinge point of the two rotating rods 16 are located between the two second slide sleeves 15 in the first direction. The bearing platform 17 is in contact with the bottom end of the monitoring body 18, and the mutual cooperation between the spring 14, the second slide sleeve 15 and the rotating rod 16 makes the monitoring body 18 more stable during the lifting process, thereby improving the fixing and supporting effect of the monitoring body 18. For example, the slide bar 13 extends in the left-right direction, and the second slide sleeve 15 is slidably disposed on the slide bar 13 in the left-right direction. The two springs 14 of the two supporting parts can use elastic force to move the two second slide sleeves 15 in the left-right direction toward mutually adjacent directions.

[0046] In some embodiments, the cover plate 8 has a through hole 19 extending therethrough in the up-down direction, and a filter screen 20 is disposed in the through hole 19, wherein the thickness direction of the filter screen 20 is in the up-down direction. During ventilation, dust in the air is filtered through the filter screen 20 to prevent dust from entering the inner wall of the box body 1 and affecting the monitoring body 18.

[0047] like Figure 4 As shown, in some embodiments, a second motor 22 is provided in the through hole 19, and the second motor 22 is connected to the inner wall surface through two fixing rods 21, and a fan blade 30 is provided on the rotating shaft 23 of the second motor 22, and the rotating shaft 23 of the second motor 22 is located below the second motor 22 and extends in the up-down direction, and the rotating shaft 23 of the second motor 22 can drive the fan blade 30 to rotate so as to ventilate the placement cavity. The monitoring body 18 is prevented from getting damp, the protection of the monitoring body 18 is improved, and its service life is extended. For example, two fixing rods 21 are arranged on both sides of the second motor 22 in the first direction (left-right direction).

[0048] like Figure 4 As shown, in some embodiments, two cleaning parts are provided in the through hole 19 and are located on both sides of the second motor 22 in the second direction, and each cleaning part includes a slide plate 26 , a cleaning brush 28 and a second lead screw 25 .

[0049] The length direction of the slide plate 26 is the first direction, the second lead screws 25 extend in the second direction, and the second lead screws 25 and the corresponding slide plate 26 are screw-driven, that is, the second lead screws 25 and the corresponding slide plate 26 are threadedly connected. For example, two cleaning parts are provided in the through hole 19 and are located on both sides of the second motor 22 in the front-to-back direction, the length direction of the slide plate 26 is the left-to-right direction, and the second lead screws 25 extend in the front-to-back direction.

[0050] The slide plate 26 is connected to the cleaning brush 28 through the connecting rod 27. The top of the cleaning brush 28 abuts against the filter 20. The length direction of the cleaning brush 28 is in the first direction. The cleaning brush 28 is slidably connected to the side walls of the through hole 19 in the first direction on both sides of the first direction. Therefore, the slide plate 26 is prevented from rotating during the movement. Each cleaning brush 28 is in close contact with the filter 20. The filter 20 is cleaned and dusted by the cleaning brush 28 to prevent the filter 20 from being blocked and affecting the ventilation effect.

[0051] The rotating shaft 23 of the second motor 22 is provided with a first bevel gear 24, and each second lead screw 25 is provided with a second bevel gear 29, and the second bevel gears 29 of the two cleaning parts are meshed with the first bevel gear 24. During the rotation process of the rotating shaft 23, the first bevel gear 24 is driven to rotate, and the meshing action between the bevel gears is used to drive the second lead screw 25 to rotate, so that the slide plate 26 drives the cleaning brush 28 to reciprocate and continuously clean the filter 20, thereby preventing the filter 20 from being blocked and ensuring the ventilation effect. For example, the length direction of the cleaning brush 28 is in the left and right direction, and the cleaning brush 28 is respectively connected to the side walls of the through hole 19 on both sides of the left and right direction in a sliding manner.

[0052] During use, when the monitoring body 18 needs to be maintained and repaired, the first motor 4 is started, wherein the first motor 4 is a forward and reverse motor, and the first motor 4 drives the first lead screw 5 to rotate by forward rotation, and the two first lead screws rotate synchronously and in the same direction, driving the two first sliding sleeves 6 to move upward together, thereby driving the monitoring body 18 to move upward. In the process of the first sliding sleeve 6 moving upward, the cover plate 8 is driven to move upward synchronously by the support rod 7, and the monitoring body 18 is moved upward to the outside of the box body 1 to facilitate the maintenance of the monitoring body 18. At the same time, if the monitoring body 18 fails, the monitoring body 18 can be promptly and effectively repaired, which facilitates the maintenance work and does not affect the power detection, thereby improving the practicality of the monitoring body 18.

[0053] After the inspection and maintenance is completed, the first motor 4 is reversed to rotate the two first lead screws 5, thereby driving the monitoring body 18 to descend through the first sliding sleeve 6, and driving the cover plate 8 to descend through the support rod 7 until the cover plate 8 is closed with the first opening of the box body 1. In the process of the cover plate 8 descending to close with the box body 1, the monitoring body 18 is constantly in contact with the top of the bearing platform 17, and drives the two rotating rods 16 to rotate, so that the second sliding sleeve 15 slides outward along the sliding rod 13 compression spring 14, making it more stable during the rising process. When the maintenance and inspection is performed, the monitoring body 18 is raised, and under the elastic action of the spring 14, the second sliding sleeve 15 is brought close to each other, so that the bearing platform 17 and the monitoring body 18 are in contact with each other, making it more stable during the rising process; the mutual cooperation between the spring 14, the second sliding sleeve 15 and the rotating rod 16 makes the monitoring body 18 more stable during the lifting process, and improves the fixing and supporting effect of the monitoring body 18.

[0054] Start the second motor 22, and the fan blades 30 are driven to rotate by the second motor 22, so that the outside air is blown into the box body 1. By blowing air into the box body 1, the box body 1 is kept in a ventilated state, which prevents the monitoring body 18 from getting damp, improves the protection of the monitoring body 18, and prolongs its service life. During the ventilation process, the dust in the air is filtered through the filter 20 to prevent dust from entering the inner wall of the box body 1 and affecting the monitoring body 18. In order to prevent the filter 20 from being blocked and affecting the ventilation effect, the filter 20 needs to be cleaned. During the rotation process, the first bevel gear 24 is driven to rotate by the rotating shaft 23. The meshing action between the bevel gears is used to drive the two second bevel gears 29 to drive the reciprocating screw 25 to rotate, so that the slide plate 26 drives the cleaning brush 28 to reciprocate and continuously clean the filter 20, so as to prevent the filter 20 from being blocked and ensure the ventilation effect.

[0055] Therefore, the power plant isolating switch pressure monitoring device according to the embodiment of the present invention has the advantages of being easy to inspect and repair the monitoring body 18 and being able to increase the life of the monitoring body 18 .

[0056] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A pressure monitoring device for a power plant isolating switch, characterized in that: include: A box body, wherein the box body has a placement cavity, a first opening is formed on the top of the box body and faces upward, the first opening is communicated with the placement cavity, a cover plate for covering the first opening is provided on the box body, the width direction of the box body is a first direction, the thickness direction of the box body is a second direction, and any two of the first direction, the second direction and the up-down direction are perpendicular to each other; A monitoring body, the monitoring body being arranged in the placement cavity of the box body; a driving part, wherein the driving part can drive the cover plate to move in the up-down direction, and the driving part can drive the monitoring body to move in the up-down direction so that the monitoring body can extend out of the box body from the first opening; A bearing platform, the bearing platform is arranged in the placement cavity of the box body, and the bearing platform is used to support the monitoring body.

2. The power plant isolating switch pressure monitoring device according to claim 1, characterized in that: The driver includes a first motor and a first screw, the length direction of the first screw is the up-down direction, the first screw is rotatably disposed in the box body, the first motor can drive the first screw to rotate, and the first screw can drive the monitoring body to move in the up-down direction.

3. The power plant isolating switch pressure monitoring device according to claim 2, characterized in that: The monitoring body is provided with a first sliding sleeve on both sides of the first direction; The driver comprises two first lead screws, and the two first lead screws are respectively connected to the two first sliding sleeves for lead screw transmission; The first motor is connected to one of the first screws, and the two first screws are connected via a synchronous belt; A support rod is disposed on the upper side of each of the first sliding sleeves, and the top of the support rod is connected to the cover plate.

4. The power plant isolating switch pressure monitoring device according to claim 3, characterized in that: A first installation cavity is provided at the bottom of the box body, the first installation cavity is a rectangular cavity, the length direction of the first installation cavity is the first direction, and the width direction of the first installation cavity is the second direction; The bottoms of the two first lead screws extend into the first mounting cavity, a driving wheel is provided at the bottom of one of the two first lead screws, and a driven wheel is provided at the bottom of one of the two first lead screws. The driving wheel and the driven wheel are connected by the synchronous belt, and the first motor is provided at the bottom of the box body and can drive the driving wheel to rotate.

5. The power plant isolating switch pressure monitoring device according to claim 3, characterized in that: The box body is provided with two slide grooves, the slide grooves extend in the up-down direction, the two slide grooves are located on both sides of the placement cavity, and the openings of the two slide grooves are arranged opposite to each other in the first direction; The two first sliding sleeves are slidably disposed in the two sliding grooves respectively along the up-down direction, and the shape and size of the first part of the first sliding sleeve located in the sliding groove are adapted to the shape and size of the sliding groove.

6. The power plant isolating switch pressure monitoring device according to claim 5, characterized in that: The projections of the cross sections of the slide groove and the first part of the first slide sleeve located in the slide groove in the vertical and up-down directions are both rectangular.

7. The power plant isolating switch pressure monitoring device according to claim 1, characterized in that: The bottom of the placement cavity is provided with two second slots spaced apart in the first direction, and the openings of the second slots face upward; The length direction of the second slot body is the first direction, and a support portion is provided in each of the second slot bodies; The supporting part includes a sliding rod, a second sliding sleeve, a spring and a rotating rod, the sliding rod extending along the first direction, the second sliding sleeve being slidably arranged on the sliding rod along the first direction, the spring being sleeved on the sliding rod, the two ends of the spring respectively abutting against the wall surface of the second groove body and the second sliding sleeve, the two springs of the two supporting parts can use elastic force to move the two second sliding sleeves in the first direction to adjacent directions, one end of the rotating rod is hinged to the top of the second sliding sleeve, the other end of the rotating rod is hinged to the bottom of the supporting platform, the rotation axis of the hinge point of the rotating rod is the second direction, and the bottom of the supporting platform and the hinge point of the two rotating rods are located between the two second sliding sleeves in the first direction.

8. The power plant isolating switch pressure monitoring device according to any one of claims 1 to 7, characterized in that: The cover plate has a through hole penetrating therethrough in the up-down direction. A filter screen is arranged in the through hole, and the thickness direction of the filter screen is in the up-down direction.

9. The power plant isolating switch pressure monitoring device according to claim 8, characterized in that: A second motor is provided in the through hole, and the second motor is connected to the inner wall surface of the through hole through two fixing rods. The fan blades are on the rotating shaft of the second motor. The rotating shaft of the second motor is located below the second motor and extends in the up and down direction. The rotating shaft of the second motor can drive the fan blades to rotate so as to ventilate the placement cavity.

10. The power plant isolating switch pressure monitoring device according to claim 9, characterized in that: Two cleaning parts are provided in the through hole and are located on both sides of the second motor in the second direction, each of the cleaning parts includes a slide plate, a cleaning brush and a second lead screw, the length direction of the slide plate is the first direction, the second lead screws extend along the second direction, the second lead screws and the slide plate are driven by a lead screw, the slide plate is connected to the cleaning brush through a connecting rod, the top of the cleaning brush abuts against the filter, the length direction of the cleaning brush is the first direction, and the cleaning brushes are slidably connected to the side walls of the through hole in the first direction on both sides of the first direction, a first bevel gear is provided on the rotating shaft of the second motor, and a second bevel gear is provided on each of the second lead screws, and the second bevel gears of the two cleaning parts are meshed with the first bevel gear.

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