Protection device for GIS equipment cover plate

Abstract

The utility model relates to a protection device for a GIS equipment cover plate. The protection device comprises a frame structure; the supporting unit is connected to the frame structure, and the supporting unit is used for supporting a cover plate of the GIS equipment; the fixing unit is connected to the frame structure, the fixing unit and the supporting unit are arranged in a spaced mode in the first direction, and a clamping groove is formed in the fixing unit, so that the cover plate can be inserted into the clamping groove in the first direction and abut against the supporting unit. An integral supporting and containing space is provided for the cover plate through the frame structure, the cover plate is inserted into the clamping groove and abuts against the supporting unit, the lower portion of the cover plate is supported and protected through the supporting unit, the upper portion of the cover plate is supported and fixed through the clamping groove, and therefore the protection device can enable the cover plate to be kept stable in the placing and transporting process; the possibility of contact between the sealing surface of the cover plate and the sealing groove is reduced, and the damage condition of the cover plate in the storage and transportation process is improved.

Description

Technical Field

[0001] The present application relates to the field of high voltage electrical technology, and in particular to a protective device for a cover plate of a GIS device. Background Art

[0002] Gas-insulated metal-enclosed switchgear (GIS) refers to a set of substation equipment consisting of SF6 circuit breakers and other high-voltage electrical components (except the main transformer) installed in a metal shell filled with SF6 gas under a certain pressure according to the required main electrical connections.

[0003] The cover plate is one of the essential parts for GIS equipment assembly and provides sealing for GIS equipment. Therefore, the sealing groove and sealing surface of the cover plate should be protected from damage during transportation, storage and use, otherwise it will affect the airtightness of the GIS equipment.

[0004] In the related art, the cover plates are usually stacked on pallets, and the pallets are transported to the workstations by ground bulls during transportation. However, the stacked cover plates in this storage method may collide during transportation, and the cover plates and pallets are prone to wear, causing damage to the sealing grooves and sealing surfaces of the cover plates. Utility Model Content

[0005] Based on this, it is necessary to provide a protective device for the cover of GIS equipment to address the above technical problems, so as to improve the damage of the cover during storage and transportation.

[0006] A protective device for a cover plate of a GIS device, the protective device comprising: a frame structure; a support unit, the support unit is connected to the frame structure and is used to support the cover plate of the GIS device; and a fixing unit, the fixing unit is connected to the frame structure, the fixing unit and the support unit are spaced apart along a first direction, and a snap-fit ​​groove is provided on the fixing unit, so that the cover plate can be inserted into the snap-fit ​​groove along the first direction and abut against the support unit.

[0007] In one of the embodiments, a plurality of engaging grooves are disposed on the fixing unit, and the plurality of engaging grooves are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

[0008] In one embodiment, a plurality of fixing units and a plurality of supporting units are arranged along the third direction, each fixing unit is arranged corresponding to a supporting unit, and the first direction, the second direction and the third direction are perpendicular to each other.

[0009] In one embodiment, the fixing unit includes two fixing members connected to the frame structure, both of which are extended along the second direction and are provided with a plurality of engaging grooves, and the two fixing members are relatively arranged on two sides of the cover plate in the third direction.

[0010] In one embodiment, the support unit includes two support members connected to the frame structure, and the two support members are arranged at intervals along the third direction and both extend along the second direction.

[0011] In one of the embodiments, in the third direction, the distance between the two supporting members is smaller than the distance between the two fixing members.

[0012] In one embodiment, the support member includes a support body and a buffer portion, two ends of the support body are respectively connected to the frame structure, and the buffer portion is sleeved on the support body.

[0013] In one embodiment, the locking groove includes two side walls and a bottom wall, the two ends of the bottom wall are respectively connected to the two side walls, and the connecting portion between the bottom wall and the side wall and the connecting portion between the side wall and the side of the fixing member facing the cover plate are both configured as rounded corners.

[0014] In one embodiment, the frame structure includes a first frame, a second frame and a third frame, a plurality of first frames are arranged at intervals and are all extended along a first direction, a second frame is extended along a second direction and two ends of the second frame are respectively connected to two of the first frames, a third frame is extended along a third direction and two ends of the third frame are respectively connected to two of the first frames, and both ends of the fixing unit and the supporting unit are connected to the third frame.

[0015] In one embodiment, the first frame includes an extension portion and a reinforcement portion, the extension portion is extended along a first direction and connected to the second frame and the third frame, the reinforcement portion is connected to an end of the extension portion away from the locking groove, and the cross-sectional area of ​​the reinforcement portion is not less than the cross-sectional area of ​​the extension portion, so that multiple protection devices can be stacked.

[0016] The above-mentioned protective device for the cover plate of GIS equipment provides overall support and accommodation space for the cover plate through a frame structure, inserts the cover plate into the snap-fit ​​groove and abuts against the support unit, provides support and protection for the lower part of the cover plate through the support unit, and provides support and fixation for the upper part of the cover plate through the snap-fit ​​groove, so that the protective device can keep the cover plate stable during placement and transportation, reduce the possibility of contact with the sealing surface and sealing groove of the cover plate, and improve the damage of the cover plate during storage and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a schematic diagram of a protective device for a GIS equipment cover in an embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0019] In the description of the present application, it should be understood that if 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. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0020] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; 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 this application can be understood according to the specific circumstances.

[0022] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the 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. The first feature being "below", "below" and "below" the 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.

[0023] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0024] Referring to FIG1 , FIG1 shows a schematic diagram of a protective device 100 for a GIS equipment cover in an embodiment of the present application. In some embodiments, the protective device 100 for a GIS equipment cover includes a frame structure 10 , a support unit 20 , and a fixing unit 30 .

[0025] The frame structure 10 is the core of the protection device 100, which is used to provide overall support and accommodation space for the cover plate of the GIS equipment, so that the cover plate can be stably placed for storage and transportation. The support unit 20 is connected to the frame structure 10 to provide support for the cover plate. The fixing unit 30 is connected to the frame structure 10 to fix the cover plate. The support unit 20 and the fixing unit 30 are arranged at intervals along the first direction S1, and the fixing unit 30 is provided with a snap-fit ​​groove 32, so that the cover plate can be inserted into the snap-fit ​​groove 32 along the first direction S1 and abut against the support unit 20.

[0026] The frame structure 10 is used to provide overall support and accommodation space for the cover plate, the cover plate is inserted into the snap-fit ​​groove 32 and abuts against the support unit 20, the support unit 20 provides support and protection for the lower part of the cover plate, and the snap-fit ​​groove 32 provides support and fixation for the upper part of the cover plate, so that the protection device 100 can keep the cover plate stable during placement and transportation, reduce the possibility of contact with the sealing surface and sealing groove of the cover plate, and improve the damage of the cover plate during storage and transportation.

[0027] Specifically in this embodiment, the first direction S1 is the height direction, so as to make full use of the accommodation space of the frame structure 10, and help keep the sealing surface of the cover plate in a vertical state to prevent foreign matter from falling onto the sealing surface of the cover plate. In other embodiments, the first direction S1 can be a horizontal direction, and the frame structure 10 provides support and protection for the cover plate to prevent collision of the cover plate during transportation and friction contact between the cover plate and the pallet.

[0028] Furthermore, the fixing unit 30 is provided with a plurality of snap-fit ​​grooves 32, which are spaced apart along the second direction S2, and the second direction S2 and the first direction S1 are perpendicular to each other, so that the plurality of snap-fit ​​grooves 32 can correspondingly place a plurality of cover plates, thereby realizing the storage, placement and transportation of the plurality of cover plates.

[0029] Preferably, the width of the snap-fit ​​groove 32 should be greater than the thickness of the cover plate, that is, there is a gap between the cover plate and the snap-fit ​​groove 32, so as to facilitate the smooth placement of the cover plate, avoid the snap-fit ​​groove 32 from touching the sealing surface and sealing groove of the cover plate when the cover plate is placed, and ensure the integrity and reliability of the sealing surface and sealing groove of the cover plate. In other embodiments, the width of the snap-fit ​​groove 32 is less than the thickness of the cover plate, so as to ensure that the cover plate is stably fixed on the protective device 100, and improve the stability of the cover plate during placement and transportation.

[0030] More preferably, the spacing between adjacent snap-fit ​​grooves 32 is greater than the overall thickness of the cover, that is, there is a gap between the cover plates placed in adjacent snap-fit ​​grooves 32, which helps to avoid collisions between adjacent cover plates during placement and transportation, and provides better storage and protection for the sealing surfaces and sealing grooves of the cover plates.

[0031] Specifically in this embodiment, a plurality of fixing units 30 and support units 20 are arranged along the third direction S3, and each fixing unit 30 is arranged corresponding to the support unit 20. The first direction S1, the second direction S2 and the third direction S3 are perpendicular to each other. This arrangement helps to make full use of the space formed by the frame structure 10, so that the protection device 100 can accommodate as many cover plates as possible, thereby improving the space utilization of the protection device 100. As shown in Figure 1, two fixing units 30 and support units 20 are arranged along the third direction S3. In other embodiments, a plurality of fixing units 30 and support units 20 can also be arranged along the first direction S1, so as to make full use of the space in the height direction of the protection device 100.

[0032] It should be noted that the first direction S1 in the present application is the height direction, the second direction S2 is the direction parallel to the axial direction of the cover plate, and the third direction S3 is the direction parallel to the radial direction of the cover plate, that is, in this embodiment, the cover plate is placed vertically, thereby reducing the contact area between the cover plate and the snap-fit ​​groove 32 and the cover plate and the support unit 20, avoiding damage to the sealing surface and sealing groove of the cover plate when the cover plate is placed.

[0033] In some embodiments, the fixing unit 30 includes two fixing members 31, both of which are extended along the second direction S2 and connected to the frame structure 10, and the two fixing members 31 are provided with a plurality of snap-fit ​​grooves 32 in pairs, and the two fixing members 31 are relatively arranged on both sides of the cover plate in the third direction S3, that is, the two fixing members 31 are arranged on both sides in the diameter direction of the cover plate, so that the two sides of the cover plate can be snap-fitted and fixed by the two pairs of snap-fit ​​grooves 32.

[0034] The snap-fitting grooves 32 of the two fixing members 31 jointly define the space for inserting the cover plate, and the two fixing members 31 jointly fix the cover plate, which helps to reduce the space occupied by the fixing members 31, and fixing the cover plate on both sides helps to reduce the contact area between a single snap-fitting groove 32 and the cover plate, that is, the cover plate can be well fixed by a smaller snap-fitting groove 32, thereby reducing the possibility of damage to the sealing surface and sealing groove of the cover plate due to the snap-fitting groove 32.

[0035] Furthermore, usually, the engaging groove 32 includes two side walls and a bottom wall, two ends of the bottom wall are respectively connected to the two side walls, and the engaging groove 32 is opened in a direction toward the cover plate so that the cover plate can be inserted into the engaging groove 32 .

[0036] The corners of the engaging groove 32 are all configured as rounded corners. Specifically, the corners of the connecting portion between the side wall and the bottom wall of the engaging groove 32 and the connecting portion between the side wall of the engaging groove 32 and the side of the fixing member 31 facing the cover plate are all configured as rounded corners.

[0037] By setting the corners of the engaging groove 32 to be rounded, when the cover is placed and moved, the sharp corners can effectively avoid damaging the sealing surface of the cover, thereby better protecting the sealing surface of the cover. It is feasible that the side walls and bottom walls of the engaging groove 32 are also rounded, that is, the side walls and bottom walls of the engaging groove 32 have a certain curvature, further reducing the contact and wear between the engaging groove 32 and the cover, so as to protect the sealing surface of the cover and the sealing groove.

[0038] Optionally, the fixing member 31 is made of plastic material, such as polypropylene (PP) material, etc. The fixing member 31 made of plastic material has a certain strength to provide support for the cover plate, and has a certain elasticity and toughness to facilitate the cover plate to be smoothly placed in the snap-fit ​​groove 32, and helps to reduce the damage of the fixing member 31 to the cover plate.

[0039] The provision of the engaging groove 32 enables the cover plate to be stably placed on the supporting unit 20 and helps to limit the movement of the cover plate, thereby preventing the cover plate from being damaged due to mutual collision during movement and transportation.

[0040] In other embodiments not shown, the fixing unit 30 includes a plurality of fixing members spaced apart along the second direction S2, and a snap-fitting groove is formed between two adjacent fixing members, so that the cover plate is placed between the two fixing members, thereby fixing and supporting the cover plate.

[0041] The fixing member 31 is preferably fixedly connected to the frame structure 10 by gluing, threading, snapping, etc., to ensure the stability of the fixing member 31 itself and avoid the movement of the cover plate due to the loosening of the fixing member 31. In other embodiments, the fixing member 31 can be selectively fixed on the frame structure 10, so that the fixing members 31 arranged relatively can have different spacings to be suitable for different types of cover plates, thereby improving the applicability of the protective device 100.

[0042] In other embodiments, the fixing member 31 can be rotatably connected to the frame structure 10, so that after the cover plate is placed on the support unit 20, the fixing member 31 is rotated to fix the upper end of the cover plate. This method can further prevent the cover plate from being damaged by the locking groove 32 when the cover plate is penetrated, and helps to increase the diameter size of the cover plate that can be placed between the fixing members 31, thereby improving the applicability of the protection device 100.

[0043] In some embodiments, the support unit 20 includes two support members 21, both ends of the two support members 21 are extended along the second direction S2 and connected to the frame structure 10, and the two support members 21 are spaced apart along the third direction S3, so that the bottom of the cover plate passing through the engaging groove 32 can abut against the two support members 21. The spaced arrangement of the support members 21 can provide two-point support for the bottom of the cover plate, which helps to ensure the stability of the bottom of the cover plate, and helps to reduce the contact area between the support members 21 and the cover plate, so as to prevent the support members 21 from damaging the sealing surface of the cover plate.

[0044] The spaced-apart snap-fitting grooves 32 and the spaced-apart supporting members 21 help to reduce the overall weight of the protection device 100 , while ensuring that the protection device 100 can provide stable support for the cover plate and achieve lightweight, which helps in the subsequent movement and transportation of the protection device 100 .

[0045] The cover plate is supported and fixed together by two support members 21 and two snap-fit ​​grooves 32, forming a four-point support for the cover plate, thereby improving the stability of the cover plate during placement and transportation. In addition, this method does not need to consider the center position of the cover plate, but only needs to ensure that the spacing between the support members 21 is less than the diameter length of the cover plate, which helps to improve the applicability of the protective device 100.

[0046] In other embodiments, the support member 21 can be configured as one, and the support member 21 and the center of the cover plate are located on the same straight line, and the cover plate is supported and fixed by the support member 21 and the two engaging grooves 32 to form a three-point support for the cover plate. In other embodiments, the support member 21 can also be configured as more than three to provide more support points for the cover plate.

[0047] Preferably, in the third direction S3, the spacing between the two support members 21 is smaller than the spacing between the two fixing members 31. Generally, the cross section of the cover plate is circular, and the spacing between the support members 21 is smaller than the spacing between the fixing members 31. When the cover plate is placed, it is convenient to insert the larger cover plate portion into the snap-fit ​​grooves 32 of the two fixing members 31, and then the smaller cover plate portion can be stably placed on the support member 21, and the larger cover plate portion can be fixed by the snap-fit ​​grooves 32, ensuring that the support member 21 can pass through the snap-fit ​​grooves 32 and abut against the support member 21.

[0048] More preferably, the distance between the bottom walls of the two engaging grooves 32 is close to the diameter of the cover plate, thereby achieving fixation of the cover plate over a larger area and improving the reliability of fixation of the cover plate, so as to facilitate long-term placement of the cover plate and subsequent transportation.

[0049] Furthermore, the support member 21 includes a support body 211 and a buffer portion 212. The support body 211 is connected to the frame structure 10, and the buffer portion 212 is sleeved on the support body 211. The support body 211 plays a supporting role to ensure that a reliable supporting force is provided for the cover plate, and the buffer portion 212 is used to provide a buffer for the cover plate, thereby reducing the damage of the support member 21 to the cover plate.

[0050] The buffer portion 212 may be made of porous elastic materials such as sponge and foam to provide a buffer for the cover when the cover is placed, thereby preventing the support body 211 from causing damage to the cover (such as the paint layer on the outer surface) when the cover is placed.

[0051] Specifically in this embodiment, the support body 211 is welded to the frame structure 10 to ensure the connection strength between the support body 211 and the frame structure 10. In other embodiments, the support body 211 can be selectively fixed to the frame structure 10, so that the spacing between the support bodies 211 can be adjusted according to the size of the cover plate, thereby improving the applicability of the protection device 100.

[0052] Preferably, in order to reduce the damage of the support body 211 to the cover plate, the support body 211 in this embodiment is a round tube with a smooth surface to avoid damage to the cover plate caused by sharp corners.

[0053] In some embodiments, the frame structure 10 includes a first frame 11, a second frame 12 and a third frame 13, and the first frame 11, the second frame 12 and the third frame 13 are each configured in plurality, all the second frames 12 are extended along the second direction S2 and the two ends of the second frames 12 are respectively connected to two of the first frames 11, all the third frames 13 are extended along the third direction S3 and the two ends of the third frames 13 are respectively connected to two of the first frames 11, and both ends of the fixing unit 30 and the supporting unit 20 are connected to the third frame 13.

[0054] It can be understood that the frame to which the fixing unit 30 and the supporting unit 20 are connected is arranged according to the extension direction of the fixing unit 30 and the supporting unit 20. For example, when the fixing unit 30 and the supporting unit 20 extend along the third direction S3, both ends of the fixing unit 30 and the supporting unit 20 are connected to the second frame 12.

[0055] Specifically in this embodiment, the second frame 12 and the third frame 13 form a plane frame of the frame structure 10, and the first frame 11 forms a three-dimensional frame of the frame structure 10, so that the first frame 11, the second frame 12, and the third frame 13 are connected to form the frame structure 10. Feasibly, the first frame 11, the second frame 12, and the third frame 13 are fixedly connected by welding.

[0056] In other embodiments, the first frame 11, the second frame 12 and the third frame 13 can be configured as a telescopic structure to adjust the size of the frame structure 10 to accommodate the placement and transportation of covers of different specifications and numbers. In other embodiments, the first frame 11, the second frame 12 and the third frame 13 can be detachably connected to facilitate the storage of the protection device 100 when it is idle, thereby reducing the space occupied by the protection device 100.

[0057] Furthermore, the frame structure 10 further includes a reinforcing frame 14 , which is disposed between adjacent first frames 11 , extends along the first direction S1 , and has two ends connected to the two third frames 13 or the two second frames 12 .

[0058] The arrangement of the reinforcing frame 14 helps to improve the connection strength between the second frames 12 arranged at intervals along the first direction S1 and between the third frames 13 arranged at intervals along the first direction S1, thereby helping to improve the overall support strength of the frame structure 10, thereby improving the ability of the second frame 12 and the third frame 13 to bear the weight of the cover plate, so that the protective device 100 can provide sufficient support for the cover plate. Feasibly, the reinforcing frame 14 is connected to the second frame 12 and the third frame 13 by welding.

[0059] Furthermore, the frame structure 10 also includes an inclined frame body 15, which is arranged at the connection between the first frame 11 and the second frame 12 and the first frame 11 and the third frame 13, so that the inclined frame body 15 can increase the connection strength between the first frame 11 and the second frame 12 and the first frame 11 and the third frame 13.

[0060] Specifically in this embodiment, the first frame 11 includes an extension portion 111 and a reinforcement portion 112 . The extension portion 111 extends along the first direction S1 and is connected to the second frame 12 and the third frame 13 . The reinforcement portion 112 is connected to one end of the extension portion 111 away from the engaging slot 32 .

[0061] The cross-sectional area of ​​the reinforcing portion 112 is not less than the cross-sectional area of ​​the extending portion 111 , so that the reinforcing portion 112 can better play the role of transmitting force and improve the force strength of the frame structure 10 to ensure the stability of the cover plate placed on the protective device 100 .

[0062] Preferably, the cross section of the extension portion 111 is square, the reinforcement portion 112 is trapezoidal as a whole, and the cross section area of ​​the reinforcement portion 112 gradually increases along the first direction S1, which helps to firmly support the first frame 11 and facilitates the stacking of multiple protection devices 100.

[0063] Furthermore, the protection device 100 in the present application can be stacked, that is, the reinforcing portion 112 is placed at one end of the extension portion 111 close to the engaging groove 32. It is feasible that the reinforcing portion 112 is sleeved on the extension portion 111, so that multiple protection devices 100 can be stably stacked and placed, thereby improving the space utilization rate when multiple protection devices 100 are placed. When the cover plate is transported, the stacked protection devices 100 can be placed on a transport device for transportation. The stacked protection devices 100 can effectively avoid contact and collision between the cover plates, and help avoid friction between the sealing surface of the cover plate and the transport device.

[0064] The protective device 100 in the present application has a simple structure and is easy to use. The frame structure 10 provides overall support and accommodation space for the cover plate. When in use, the cover plate only needs to be inserted into the snap-fit ​​groove 32 and abutted against the support unit 20. The support unit 20 provides support and protection for the lower part of the cover plate, and the snap-fit ​​groove 32 provides support and fixation for the upper part of the cover plate, so that the cover plate remains stable during placement and transportation, reducing the possibility of contact with the sealing surface and sealing groove of the cover plate, and improving the damage of the cover plate during storage and transportation.

[0065] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A protective device for a GIS equipment cover, characterized in that: The protection device comprises: Frame structure; A support unit, the support unit is connected to the frame structure, and the support unit is used to support a cover plate of a GIS device; and A fixing unit is connected to the frame structure, the fixing unit and the supporting unit are spaced apart along a first direction, and a snap-fitting groove is provided on the fixing unit so that the cover plate can be inserted into the snap-fitting groove along the first direction and abut against the supporting unit.

2. The protective device for GIS equipment cover according to claim 1, characterized in that: The fixing unit is provided with a plurality of the engaging grooves, and the plurality of the engaging grooves are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

3. The protective device for GIS equipment cover according to claim 2, characterized in that: A plurality of the fixing units and the supporting units are arranged along the third direction, each of the fixing units is arranged corresponding to the supporting unit, and the first direction, the second direction and the third direction are perpendicular to each other.

4. The protective device for GIS equipment cover according to claim 3 is characterized in that: The fixing unit includes two fixing members connected to the frame structure. The two fixing members are both extended along the second direction and provided with a plurality of the engaging grooves. The two fixing members are relatively arranged on two sides of the cover plate in the third direction.

5. The protective device for GIS equipment cover according to claim 4, characterized in that: The support unit includes two support members connected to the frame structure, and the two support members are arranged at intervals along the third direction and are both extended along the second direction.

6. The protective device for GIS equipment cover according to claim 5, characterized in that: In the third direction, the distance between the two supporting members is smaller than the distance between the two fixing members.

7. The protective device for GIS equipment cover according to claim 5, characterized in that: The support member comprises a support body and a buffer portion. Two ends of the support body are respectively connected to the frame structure, and the buffer portion is sleeved on the support body.

8. The protective device for GIS equipment cover according to claim 4, characterized in that: The engaging groove includes two side walls and a bottom wall, the two ends of the bottom wall are respectively connected to the two side walls, and the connecting portion between the bottom wall and the side wall and the connecting portion between the side wall and the fixing member facing the side of the cover plate are both configured as rounded corners.

9. The protective device for GIS equipment cover according to claim 3, characterized in that: The frame structure includes a first frame, a second frame and a third frame, a plurality of the first frames are arranged at intervals and are all extended along the first direction, the second frame is extended along the second direction and the two ends of the second frame are respectively connected to two of the first frames, the third frame is extended along the third direction and the two ends of the third frame are respectively connected to two of the first frames, and both ends of the fixing unit and the supporting unit are connected to the third frame.

10. The protective device for GIS equipment cover according to claim 9, characterized in that: The first frame includes an extension portion and a reinforcement portion, the extension portion is extended along a first direction and connected to the second frame and the third frame, the reinforcement portion is connected to an end of the extension portion away from the locking groove, and the cross-sectional area of ​​the reinforcement portion is not less than the cross-sectional area of ​​the extension portion, so that multiple protection devices can be stacked.

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