Device for opening isolation baffle of 35 kilovolt and below switch cabinet

Abstract

The invention discloses a 35 kilovolt and below switch cabinet isolation baffle opening device, and relates to the technical field of electric power auxiliary devices, the 35 kilovolt and below switch cabinet isolation baffle opening device is characterized by comprising a first operation piece, a second operation piece and a connecting piece, and the connecting piece is connected with the first operation piece and the second operation piece; the first operating part and the second operating part are consistent in structure, the connecting part comprises a locking plate and a connecting rod, the connecting rod is fixed on the operating parts, the connecting rod adopts a scissor fork mechanism, and the locking plate is fixed on the connecting rod by arranging a limiting hole and a first mounting hole. The device is simple in structure and convenient to use, the labor intensity of operators is reduced, the operators only need to hold the handle in the using process, then the distance between the first operation piece and the second operation piece and the width of the operation pieces are adjusted according to the actual situation, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric auxiliary devices, and in particular to a device for opening isolation baffles of switch cabinets of 35 kilovolts or less. Background Art

[0002] Switchgear is an electrical equipment, whose main function is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system. When inspecting or maintaining the equipment behind the isolation baffle of the switchgear, it is necessary to open the isolation baffle of the switchgear to work. The high-voltage switchgear is usually installed in the high-voltage room to prevent the equipment behind the isolation baffle of the switchgear from abnormalities during long-term operation. It is necessary to use special tools to inspect or maintain the equipment behind the isolation baffle of the switchgear during the power outage of the switchgear busbar.

[0003] At present, insulating rods are mainly used to push open the isolation baffles, and the insulating rods are used to hold the isolation baffles, which is very inconvenient to operate. Based on this, Patent 202010906653.1 provides a 10kV switch cabinet isolation baffle opening tool, including a first push plate, a second push plate, a connecting piece, a push-pull piece and a pulley set; the connecting piece includes a fixed rod, a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are provided with elastic buckles, and a number of positioning holes are evenly provided on the fixed rod; the first connecting rod and the second connecting rod are respectively fixed in the positioning holes by elastic buckles; the push-pull piece includes an insulating handle and a telescopic sleeve rod, and the telescopic sleeve rod includes a first telescopic rod, a second telescopic rod and a third telescopic rod, the second telescopic rod telescopically slides in the first telescopic rod, and the third telescopic rod telescopically slides in the second telescopic rod. The bottom surfaces of the first telescopic rod, the second telescopic rod and the third telescopic rod are not circular, which can cover different types of kV switch cabinets, with good stability, uniform force, simple structure, and convenient installation and disassembly of the tool. Unloading, use and storage; Patent 201720688465.X provides a portable 10kV central cabinet isolation baffle opening device, including an expansion pin opening mechanism, a guide rail support mechanism, a connecting pipe, and a locking rod. The expansion pin opening mechanism includes an expansion pin box and a hand-held rod and an expansion pin installed on the expansion pin box. The guide rail support mechanism includes a guide rail bracket, a guide rail wheel, and a wheel support plate. The guide rail wheel is installed on the wheel support plate, and the wheel support plate is fixed to both sides of the guide rail bracket; the expansion pin opening mechanism is installed in the middle of the inner side of the guide rail bracket through the connecting pipe, and the expansion pin opening mechanism can be rotated around the connecting pipe ° and then stored. The locking rod is installed inside the connecting pipe and the expansion pin box. The utility model is easy to carry, easy to operate, and safe. It standardizes and normalizes the opening operation of the central cabinet isolation baffle, ensures the safety of opening the isolation baffle when the static contact is energized, and can effectively reduce the labor intensity of operators, improve work efficiency, and enhance the safety factor. However, the above patents do not solve the problem of needing to replace the device when facing different models of switch cabinets, and cannot be applied to different models of switch cabinets. At the same time, the above patent is a structure in which an insulating handle pushes two push plates and a hand-held rod pushes two guide rail brackets. There is only one handle, so when opening or closing the isolation baffle, the stability of the device cannot be guaranteed.

[0004] Therefore, it is necessary to design a 35 kV and below switch cabinet isolation baffle opening device with a perfect structure to solve the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to solve the deficiencies in the prior art and to design a new device for opening the isolation baffle of a switch cabinet of 35 kV and below. The structure of the device for opening the isolation baffle of a switch cabinet of 35 kV and below is relatively complete and can solve the problem that the prior device cannot adapt to switch cabinets of different models.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A 35 kV and below switch cabinet isolation baffle opening device, comprising a first operating member, a second operating member and a connecting member, wherein the connecting member connects the first operating member and the second operating member;

[0008] The first operating member and the second operating member have the same structure, and the first operating member includes a base, a first connecting groove, a second connecting groove, a third connecting groove, a telescopic member, an adjusting member and a limiting plate; the bottom of the first connecting groove is fixed to the base, the second connecting groove and the third connecting groove are fixed in the first connecting groove, and connecting plates are provided at the openings of the second connecting groove and the third connecting groove, the telescopic member connects the second connecting groove and the third connecting groove, the adjusting member passes through the first connecting groove and is connected to the telescopic member, and the limiting plate is "L"-shaped, the bottom end of the limiting plate is fixed to the second connecting groove, and the upper end of the limiting plate is close to the third connecting groove;

[0009] The connecting member comprises a locking plate and a connecting rod, wherein the connecting rod is fixed to the connecting plate, the connecting rod adopts a scissor mechanism, and the locking plate is fixed to the connecting rod by setting a limiting hole and a first mounting hole.

[0010] As a preferred embodiment of the present invention, the telescopic member structure is two crossed telescopic connecting rods, the two telescopic connecting rods are connected by a rotating shaft, and the telescopic connecting rod is connected to the second connecting groove and the third connecting groove.

[0011] As a preferred embodiment of the present invention, the adjusting member comprises an adjusting nut, a screw rod and a hand wheel, the screw rod connects the adjusting nut and the hand wheel, and the adjusting nut is connected to the cross position of the telescopic connecting rod.

[0012] As a preferred embodiment of the present invention, a threaded hole is provided on the adjusting nut, the screw is connected to the adjusting nut through the threaded hole, a square hole is provided on the handwheel, the cross-section of one end where the screw and the handwheel are connected is rectangular, and a screw sleeve is provided at the position where the screw and the handwheel are connected.

[0013] As a preferred embodiment of the present invention, protrusions are provided at both ends of the adjusting nut, connecting holes are provided in the protrusions, and the adjusting nut is connected to the telescopic connecting rod through the connecting holes.

[0014] As a preferred embodiment of the present invention, a first sliding groove is provided on the first connecting groove, and the second connecting groove and the third connecting groove are connected through the first sliding groove and the first connecting groove.

[0015] As a preferred embodiment of the present invention, a second sliding groove and a second mounting hole are provided on the connecting plate, and the connecting rod is fixed to the connecting plate through the second sliding groove and the second mounting hole; a third sliding groove and a third mounting hole are provided on the second connecting groove and the third connecting groove, and the telescopic connecting rod is fixed to the connecting groove through the third sliding groove and the third mounting hole.

[0016] As a preferred embodiment of the present invention, an operating head is provided at one end of the second connecting groove away from the first connecting groove and at one end of the third connecting groove away from the first connecting groove.

[0017] As a preferred embodiment of the present invention, a handle is provided on a side of the base away from the first connecting groove, and an insulating sleeve is provided on a side of the handle away from the base.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present invention has a simple structure, and a connecting member is provided to connect the first operating member and the second operating member. It is easy to use. When using it, the operator only needs to hold the handle, and then adjust the distance between the first operating member and the second operating member and the width of the operating member according to actual conditions, thereby reducing the labor intensity of the operator. The distance between the operating members and the width of the operating members can be adjusted. When opening the isolation baffles of switch cabinets of different models, there is no need to replace the equipment. The operator only needs to adjust the corresponding distance or width, thereby improving work efficiency.

[0020] (2) The various components of the present invention are detachably connected, and are easy to manufacture and maintain. The overall connecting member connects the first operating member and the second operating member through a screw and a nut. The connection between the base, connecting groove, telescopic member, adjusting member, limit plate, connecting plate and operating head included in the local connecting member is also connected through a screw and a nut. Therefore, it is not necessary to disassemble the entire device for maintenance. Only the problematic component needs to be opened for precise maintenance.

[0021] (3) The present invention can adjust the size of the device by setting a connecting part and a telescopic part. When not in use, it can be retracted to a minimum state, which is convenient for staff to carry. The telescopic part is controlled by the adjusting part. When in use, it is only necessary to turn the hand wheel set on the adjusting part. The hand wheel is set on the side close to the base for easy adjustment.

[0022] (4) The device is provided with two handles, which can be conveniently held by the operator at the same time, so as to open the isolation baffle more conveniently. The setting of the two handles can also improve the stability of the device, making the opening of the isolation baffle smoother; in addition, when facing isolation baffles of switch cabinets of different sizes, the staff can choose to work alone or in pairs to ensure the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall schematic diagram of a 35 kV and below switch cabinet isolation baffle opening device proposed by the present invention;

[0024] Figure 2 A side view of a device for opening the isolation baffle of a switch cabinet of 35 kV or less proposed by the present invention;

[0025] Figure 3 A side view of a device for opening the isolation baffle of a switch cabinet of 35 kV or less proposed by the present invention;

[0026] Figure 4 A partial schematic diagram of a device for opening the isolation baffle of a switch cabinet of 35 kV or less proposed by the present invention;

[0027] Figure 5 A schematic diagram of an adjusting component of a 35 kV and below switch cabinet isolation baffle opening device proposed by the present invention.

[0028] Description of reference numerals:

[0029] 1-first operating member, 2-second operating member, 3-connecting member, 4-handle;

[0030] 10-base, 11-first connecting groove, 12-second connecting groove, 13-third connecting groove, 14-telescopic member, 15-adjusting member, 16-limiting plate, 17-connecting plate, 18-operating head, 30-locking plate, 31-connecting rod, 32-limiting plate, 33-first mounting hole, 40-insulating sleeve;

[0031] 110 - first sliding groove, 120 - third sliding groove, 121 - third mounting hole, 150 - adjusting nut, 151 - screw rod, 152 - connecting hole, 153 - hand wheel, 154 - screw rod sleeve, 170 - second sliding groove, 171 - second connecting hole. DETAILED DESCRIPTION

[0032] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and embodiments:

[0033] It should be noted that the structures, colors, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0034] At the same time, in the description of the present invention, it should be understood that the terms "one end", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0036] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" 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 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, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0037] like Figure 1-Figure 5 The present invention discloses a device for opening an isolation baffle of a switch cabinet of 35 kV or less, comprising a first operating member 1, a second operating member 2 and a connecting member 3, wherein the connecting member 3 connects the first operating member 1 and the second operating member 2;

[0038] The first operating member 1 and the second operating member 2 have the same structure. The first operating member 1 includes a base 10, a first connecting groove 11, a second connecting groove 12, a third connecting groove 13, a telescopic member 14, an adjusting member 15 and a limiting plate 16; the bottom of the first connecting groove 11 is fixed on the base 10, the second connecting groove 12 and the third connecting groove 13 are fixed in the first connecting groove 11, and connecting plates 17 are provided at the openings of the second connecting groove 12 and the third connecting groove 13, the telescopic member 14 connects the second connecting groove 12 and the third connecting groove 13, the adjusting member 15 passes through the first connecting groove 11 and is connected to the telescopic member 14, and the limiting plate 16 has an "L" shape in appearance, one end of the limiting plate 16 is fixed on the second connecting groove 12, and the other side of the limiting plate 16 is close to the third connecting groove 13.

[0039] The first connecting groove 11 is fixed on the base 10, and the second connecting groove 12 and the third connecting groove 13 are fixed inside the first connecting groove 11, wherein the first connecting groove 11 is hollow inside, and the second connecting groove 12 and the third connecting groove 13 can slide inside the first connecting groove 11, so as to adjust the distance between the second connecting groove 12 and the third connecting groove 13 to adapt to isolation baffles of different sizes, and a connecting plate 17 is provided at the opening of the second connecting groove 12 and the third connecting groove 13, and the connecting plate 17 is used to connect the connecting member 3, and the first operating member 1 and the second operating member 2 are connected as a whole through the connecting member 3, so that the structure is complete and easy to carry;

[0040] The connecting member 3 includes a locking plate 30 and a connecting rod 31, wherein the connecting rod 31 is fixed on the connecting plate 1, and the connecting rod 31 adopts a scissor-fork mechanism. There is a gap at the part where the connecting rod 31 is connected with the operating member after crossing, and a gasket is provided to make it fit. The locking plate 30 is fixed on the connecting rod 31 by providing a limiting hole 32 and a first mounting hole 33. There are multiple limiting holes 32, which can be adjusted according to actual conditions to complete the adjustment of the distance between the first operating member 1 and the second operating member 2.

[0041] During specific use, the staff first determines the limit hole 32 that needs to be connected according to the actual situation, and drives the connecting rod 31 to slide in the second sliding groove 170 by adjusting the connection between the connecting rod 31 and the limit hole 32, so as to adjust the distance between the first operating member 1 and the second operating member 2, and then adjusts the telescopic member 14 through the adjusting member 15 to adjust the width of the operating member. After the adjustment is completed, the staff can hold the handle to open the isolation baffle of the switch cabinet.

[0042] The telescopic member 14 is connected to the second connection groove 12 and the third connection groove 13, and is used to adjust the distance between the second connection groove 12 and the third connection groove 13; one end of the adjusting member 15 is connected to the telescopic member 14, and the other end extends out of the first connection groove 11, and is fixed by the first connection groove 11 and the telescopic member 14 to prevent it from swinging. The telescopic member 14 is connected to the adjusting member 15, and the telescopic member 14 is adjusted by the adjusting member 15, so as to adjust the distance between the second connection groove 12 and the third connection groove 13;

[0043] One end of the limit plate 16 is fixed on the second connecting groove 12, and the other end is close to the side of the third connecting groove 13, so as to fix the second connecting groove 12 and the third connecting groove 13 so that the second connecting groove 12 and the third connecting groove 13 always remain parallel, thereby ensuring the structural stability of the first operating member 1, preventing the device structure from being unstable and the isolation baffle from failing to open, and at the same time, the auxiliary operating head 18 opens the isolation baffle of the switch cabinet.

[0044] As another embodiment of the present invention, the first connecting groove 11, the second connecting groove 12, and the third connecting groove 13 may be "U"-shaped grooves.

[0045] The telescopic member 14 is structured as two crossed telescopic links, which are connected by a rotating shaft. The telescopic links are connected to the second connecting groove 12 and the third connecting groove 13. There is a gap between the cross-linked telescopic links and the connecting grooves, which are fitted by setting gaskets. The adjusting member 15 includes an adjusting nut 150, a screw 151 and a handwheel 153. The screw 151 connects the adjusting nut 151 and the handwheel 153, and the adjusting nut 150 is connected to the cross-linked position.

[0046] The telescopic connecting rod is fixed on the connecting groove, and is also connected to the adjusting nut 150 through the rotating shaft. The adjusting nut 150 is connected to the screw rod 151, and the other end of the screw rod 151 is connected to the hand wheel 153. When actually in use, the hand wheel 151 is rotated, and the screw rod 151 is rotated by the rotation of the hand wheel 151, so that the adjusting nut 150 is rotated to adjust the telescopic connecting rod, and the telescopic member 14 is telescoped. The distance between the second connecting groove 12 and the third connecting groove 13 is changed accordingly.

[0047] The hand wheel 153 is disposed at a section of the screw rod 151 extending out of the first connecting groove 11 and is close to the base 10 , so as to facilitate adjustment by the staff.

[0048] As another embodiment of the present invention, a plurality of telescopic members 14 can be provided according to actual conditions, so as to more accurately adjust the distance between the second connection groove 12 and the third connection groove 13, and further ensure the possibility of successful opening of the isolation baffle.

[0049] A threaded hole is provided on the adjusting nut 150, and the screw 151 is connected to the adjusting nut 150 through the threaded hole. A square hole is provided on the handwheel 153, and the cross-section of one end where the screw 151 and the handwheel 153 are connected is rectangular. A screw sleeve 154 is provided at the position where the screw 151 and the handwheel 153 are connected.

[0050] The adjusting nut and the screw are connected through a threaded hole, which can achieve fine adjustment and effectively ensure the accuracy of adjustment; a square hole is provided on the handwheel 153, and the cross section of one end where the screw 151 and the handwheel 151 are connected is rectangular. The contact part between the screw 151 and the handwheel 153 is set to be rectangular, which can increase the friction between the screw 151 and the handwheel 153, thereby making the adjustment more stable and accurate. In addition, the rectangular cross section can also provide a larger support surface, reducing the wear between the screw 151 and the handwheel 153;

[0051] When the screw 151 and the hand wheel 153 are connected, in order to ensure the connection and flexibility, a screw sleeve 154 is provided. The screw sleeve 154 is a sleeve that can slide at the connection between the screw 151 and the hand wheel 153, and is usually made of copper, aluminum, plastic and other materials. Its main functions are as follows:

[0052] 1 Reduce wear: The screw sleeve 154 can reduce wear at the connection between the screw 151 and the hand wheel 153 and extend the service life;

[0053] 2. Improve flexibility: The screw sleeve 154 can make the hand wheel 153 slide on the screw 151 more flexible and more convenient to operate;

[0054] 3 Reduce friction: The screw sleeve 154 can reduce the friction at the connection between the screw 151 and the hand wheel 153, thereby reducing the difficulty of operation;

[0055] 4 Preventing jamming: The screw sleeve 154 can prevent the connection between the screw 151 and the hand wheel 153 from jamming, thereby ensuring the stability and safety of the operation.

[0056] The adjusting nut 150 is provided with protrusions at both ends, and a connecting hole 152 is provided in the protrusion. The adjusting nut 150 is connected to the rotating shaft of the telescopic connecting rod through the connecting hole 152; the connection hole 151 provided in the protrusion can increase the connection strength between the adjusting nut and the telescopic connecting rod, and reduce the looseness and wear of the connection; in addition, the setting of the connecting hole 152 can also make the adjusting nut easier to install and remove.

[0057] The first connecting groove 11 is provided with a first sliding groove 110, and the second connecting groove 12 and the third connecting groove 13 are connected to the first connecting groove 11 through the first sliding groove 110; the second connecting groove 12 and the third connecting groove 13 are moved along the first connecting groove 11 through the first sliding groove 110 to adjust the distance between the second connecting groove 12 and the third connecting groove 13.

[0058] A second sliding groove 170 and a second mounting hole 171 are provided on the connecting plate 17, and the connecting rod 31 is fixed to the connecting plate 17 through the second sliding groove 170 and the second mounting hole 171; a third sliding groove 120 and a third mounting hole 121 are provided on the second connecting groove 12 and the third connecting groove 13, and one end of the telescopic connecting rod is fixed to the connecting groove through the third sliding groove 120 and the third mounting hole 121.

[0059] One end of the connecting rod 31 is slidably connected to the second sliding groove 170, and the other end is fixedly connected to the second mounting hole 171. The distance between the connecting plate 17 on the first operating member 1 and the connecting plate 17 on the second operating member 2 is adjusted by sliding the connecting rod 31 in the second sliding groove 170, and then the connecting rod 31 cooperates with the limiting hole 32 and the first mounting hole 33 on the locking plate 30, thereby adjusting the distance between the first operating member 1 and the second operating member 2.

[0060] One end of the telescopic connecting rod is slidably connected to the connecting groove through the third sliding groove 120, and the other end is fixedly connected to the connecting groove through the third mounting hole 121. The distance between the second connecting groove 12 and the third connecting groove 13 is adjusted by sliding the telescopic connecting rod inside the third sliding groove 170.

[0061] As another embodiment of the present invention, multiple telescopic parts 14 can be provided, so that the distance between the second connecting groove 12 and the third connecting groove 13 can be adjusted more accurately, thereby making the adjustment of the device more accurate and convenient; when multiple telescopic parts 14 are provided, only the telescopic part 14 close to the base is fixed to the connecting groove through the third mounting hole 121 on the side close to the base 14, and the rest are slidably connected to the third sliding groove 120.

[0062] An operating head 18 is provided at one end of the second connecting groove 12 away from the first connecting groove 11 and at one end of the third connecting groove 13 away from the first connecting groove 11. A handle 4 is provided on the side of the base 10 away from the first connecting groove 11, and an insulating sleeve 40 is provided on the side of the handle 4 away from the base 10. The operating head 18 can facilitate the staff to open the isolation baffle, and the insulating sleeve 40 is provided on the handle 4 to protect the safety of the staff and prevent them from the risk of electric shock.

[0063] The specific use steps of the device for opening the isolation baffle of a switch cabinet of 35 kV or less of the present invention are as follows:

[0064] (1) The staff selects the limit hole 32 according to the actual situation and adjusts the distance between the first operating member 1 and the second operating member 2;

[0065] (2) The staff rotates the hand wheel 153 to adjust the telescopic member 14 to change the distance between the second connecting groove 12 and the third connecting groove 13;

[0066] (3) After the adjustment is completed, the staff holds the insulating sleeve 40 and moves it toward the buckle of the isolation baffle transmission mechanism. The staff pushes or pulls the buckle through the operating head 18 and the limit plate 16 to change the state of the isolation baffle transmission mechanism, and the isolation baffle of the switch cabinet opens.

[0067] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

[0068] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A device for opening the isolation baffle of a switch cabinet of 35 kV or below, Features: It comprises a first operating member (1), a second operating member (2) and a connecting member (3), wherein the connecting member (3) connects the first operating member (1) and the second operating member (2); The first operating member (1) and the second operating member (2) have the same structure. The first operating member (1) comprises a base (10), a first connecting groove (11), a second connecting groove (12), a third connecting groove (13), a telescopic member (14), an adjusting member (15) and a limiting plate (16); the bottom of the first connecting groove (11) is fixed on the base (10), the second connecting groove (12) and the third connecting groove (13) are fixed in the first connecting groove (11), and the second connecting groove (12) and the third connecting groove (13) are fixed in the first connecting groove (11). A connecting plate (17) is provided at the opening of the groove (12) and the opening of the third connecting groove (13); the telescopic member (14) connects the second connecting groove (12) and the third connecting groove (13); the adjusting member (15) passes through the first connecting groove (11) and is connected to the telescopic member (14); the limiting plate (16) is "L"-shaped; the bottom end of the limiting plate (16) is fixed on the second connecting groove (12), and the upper end of the limiting plate (16) is in close contact with the third connecting groove (13); The connecting member (3) comprises a locking plate (30) and a connecting rod (31); the connecting rod (31) is fixed on the connecting plate (17); the connecting rod (31) adopts a scissor mechanism; the locking plate (30) is fixed on the connecting rod (31) by providing a limiting hole (32) and a first mounting hole (33).

2. A device for opening the isolation baffle of a switch cabinet of 35 kV or less as claimed in claim 1, Features: The telescopic member (14) is structured as two crossed telescopic connecting rods, the two telescopic connecting rods are connected via a rotating shaft, and the telescopic connecting rod is connected to the second connecting groove (12) and the third connecting groove (13).

3. A device for opening the isolation baffle of a switch cabinet of 35 kV or less as claimed in claim 2, Features: The adjusting member (15) comprises an adjusting nut (150), a screw rod (151) and a hand wheel (153); the screw rod (151) connects the adjusting nut (151) and the hand wheel (153); and the adjusting nut (150) is connected to a position where the telescopic connecting rod crosses.

4. A device for opening the isolation baffle of a switch cabinet of 35 kV or less as claimed in claim 3, Features: The adjusting nut (150) is provided with a threaded hole, the screw rod (151) is connected to the adjusting nut (150) through the threaded hole, the hand wheel (153) is provided with a square hole, the cross section of one end where the screw rod (151) and the hand wheel (153) are connected is rectangular, and a screw rod sleeve (154) is provided at the position where the screw rod (151) and the hand wheel (153) are connected.

5. A device for opening the isolation baffle of a switch cabinet of 35 kV or less as claimed in claim 4, Features: The adjusting nut (150) is provided with protrusions at both ends, and a connecting hole (152) is provided in the protrusion. The adjusting nut (150) is connected to the telescopic connecting rod through the connecting hole (152).

6. A device for opening the isolation baffle of a switch cabinet of 35 kV or less as claimed in claim 1, Features: The first connecting groove (11) is provided with a first sliding groove (110), and the second connecting groove (12) and the third connecting groove (13) are connected to the first connecting groove (11) via the first sliding groove (110).

7. A device for opening the isolation baffle of a switch cabinet of 35 kV or less as claimed in claim 1, Features: The connecting plate (17) is provided with a second sliding groove (170) and a second mounting hole (171), and the connecting rod (31) is fixed to the connecting plate (17) through the second sliding groove (170) and the second mounting hole (171); The second connecting groove (12) and the third connecting groove (13) are provided with a third sliding groove (120) and a third mounting hole (121), and the telescopic connecting rod is fixed to the connecting groove via the third sliding groove (120) and the third mounting hole (121).

8. A device for opening the isolation baffle of a switch cabinet of 35 kV or less as claimed in claim 1, Features: An operating head (18) is provided at one end of the second connecting groove (12) away from the first connecting groove (11) and at one end of the third connecting groove (13) away from the first connecting groove (11).

9. A device for opening the isolation baffle of a switch cabinet of 35 kV or less as claimed in claim 1, Features: A handle (4) is provided on a side of the base (10) away from the first connection groove (11), and an insulating sleeve (40) is provided on a side of the handle (4) away from the base (10).

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