Electrically insulating shielding device

Abstract

The application provides an electrically insulated shielding device, which comprises an insulated baffle, a clamping assembly, a connecting rod, a clamping piece and a transmission piece, the connecting rod is rotatably arranged below the insulated baffle, the clamping piece and the transmission piece are arranged on the connecting rod, the clamping piece is located on one side of the slot, the side wall of the transmission piece has a transmission curved surface, and the transmission curved surface surrounds the outside of the connecting rod; a movable pressing rod is vertically movably arranged on the insulated baffle and below the transmission piece; when the base is inserted into the slot and the movable pressing rod is arranged on the insulated support, the movable pressing rod is in contact with the transmission curved surface to drive the connecting rod to rotate, the connecting rod drives the clamping piece to rotate relative to the slot, and the clamping piece is clamped with the side of the base away from the insulated support. Through the technical scheme, the operation difficulty of assembling the insulated baffle on the isolation knife switch in the related art can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power devices, in particular to an electrical insulation shielding device. BACKGROUND

[0002] The isolation knife switch is an important element on the electrical circuit, which is usually closed to form a current path. When power construction is needed, the isolation knife switch is opened to form an obvious disconnection point on the line, one side is live and the other side is de-energized, which ensures the safety of construction on the de-energized side. Generally, the isolation knife switch is not very large, and the distance between the live side and the de-energized side is not very long. Sometimes, when the construction is close to the de-energized side of the isolation knife, the arm is stretched and it is easy to touch the live side and cause electric shock.

[0003] In the related art, an insulation baffle is installed between the live side and the de-energized side of the isolation knife switch before construction to limit the working range during construction so as not to touch the live part. After the construction is completed, the insulation baffle is removed, and the isolation knife switch is closed to restore power. The current scheme for fixing the insulation baffle is to groove the insulation baffle, and the groove is clamped on the base of the isolation knife during use.

[0004] Since the isolation knife switch is often installed on a pole tower 6 meters or more above the ground, a very long insulation operating rod is needed to install the insulation baffle. The long force arm makes the baffle swing significantly, and the L-shaped groove of the insulation baffle makes it difficult to quickly clamp the groove into the base, which is very difficult to operate. SUMMARY

[0005] The present application provides an electrical insulation shielding device to solve the problem of difficult operation when assembling the insulation baffle on the isolation knife switch in the related art.

[0006] The present application provides an electrical insulation shielding device, which comprises: an insulation baffle, the edge of the insulation baffle is provided with a slot for accommodating a base; a clamping assembly, the clamping assembly comprises a connecting rod, a clamping piece and a transmission piece, the connecting rod is rotatably arranged below the insulation baffle about its axis, the connecting rod extends along the insertion direction of the insulation baffle, the clamping piece and the transmission piece are both arranged on the connecting rod, the clamping piece is located on one side of the slot, and the side wall of the transmission piece has a transmission curved surface, the transmission curved surface surrounds the outside of the connecting rod; a movable pressure rod, the movable pressure rod is movably arranged on the insulation baffle along the vertical direction and located below the transmission piece; wherein when the base is inserted into the slot and the movable pressure rod is arranged on the insulation support, the movable pressure rod will contact the transmission curved surface to drive the connecting rod to rotate, the connecting rod drives the clamping piece to rotate relative to the slot, so that the clamping piece is clamped with the side of the base away from the insulation support.

[0007] Further, the electrical insulation shielding device further comprises two mounting seats, the two mounting seats are arranged in a direction perpendicular to the insertion direction of the insulation baffle, the upper end of the mounting seat is connected to the lower surface of the insulation baffle, the side wall of the two mounting seats facing each other is provided with a mounting groove, and the two ends of the movable pressing rod are respectively inserted into the mounting grooves of the two mounting seats.

[0008] Further, the size of the mounting groove in the insertion direction of the insulation baffle is greater than the size of the movable pressing rod, so that the movable pressing rod can move in the mounting groove along the insertion direction of the insulation baffle.

[0009] Further, the clamping part is adjustably arranged on the connecting rod around the axis of the connecting rod; and / or the transmission part is adjustably arranged on the connecting rod around the axis of the connecting rod.

[0010] Further, the clamping part has a first mounting hole, the first end of the connecting rod is inserted into the first mounting hole, the transmission part has a second mounting hole, the second end of the connecting rod is inserted into the second mounting hole, the first mounting hole and the second mounting hole are both plum blossom holes, the shape of the first end of the connecting rod is matched with the shape of the first mounting hole, and the shape of the second end of the connecting rod is matched with the shape of the second mounting hole.

[0011] Further, the clamping assembly further comprises a first locking part and a second locking part, the first locking part is connected to the first end of the connecting rod to limit the axial position of the clamping part on the connecting rod, and the second locking part is connected to the second end of the connecting rod to limit the axial position of the transmission part on the connecting rod.

[0012] Further, the weight of the transmission part is greater than the weight of the clamping part.

[0013] Further, a plurality of insertion slots are arranged at the edge of the insulation baffle, the plurality of insertion slots are arranged in a direction perpendicular to the insertion direction of the insulation baffle, the electrical insulation shielding device comprises a plurality of clamping assemblies, one clamping assembly is arranged on each side of each insertion slot, and the transmission curved surface of the plurality of clamping assemblies is matched with the movable pressing rod.

[0014] Further, the clamping part comprises a first mounting cylinder and a clamping plate, the first mounting cylinder is sleeved on the connecting rod, and one end of the clamping plate is connected to the outer side wall of the first mounting cylinder; and / or the transmission part comprises a second mounting cylinder and an arc-shaped plate, the second mounting cylinder is sleeved on the connecting rod, and one end of the arc-shaped plate is connected to the outer side wall of the second mounting cylinder, and the arc-shaped plate has a transmission curved surface.

[0015] Further, the lower surface of the insulation baffle is provided with a fixing block, and the connecting rod is rotatably inserted into the fixing block.

[0016] The electrical insulation shielding device comprises an insulation baffle, a clamping assembly and a movable pressing rod. When the electrical insulation shielding device needs to be installed between the live side and the power-off side of the isolation knife switch, first, the insertion slot of the insulation baffle is aligned with the base, and then the base is inserted into the insertion slot. At this time, the electrical insulation shielding device is released, the movable pressing rod is arranged on the insulation support, the movable pressing rod is in contact with the transmission curved surface to drive the connecting rod to rotate, the connecting rod drives the clamping piece to rotate relative to the insertion slot, and the clamping piece is clamped with the side of the base away from the insulation support. By adopting the above structure, the rotation of the clamping piece is pushed by the gravity of the insulation baffle device and the reaction force of the insulation support, so that a closed locking state is formed. When the insulation baffle is lifted, the gravity disappears, the clamping piece returns to an open unlocking state, the operation of assembling the insulation baffle on the isolation knife switch is simplified, and the operation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated herein by reference. The embodiments illustrated in the drawings are intended to explain the present application and are not intended to limit the present application. In the drawings:

[0018] Figure 1 A structural schematic diagram of an electrical insulation shielding device provided by an embodiment of the present application is shown;

[0019] Figure 2 An assembly schematic diagram of an electrical insulation shielding device provided by an embodiment of the present application is shown;

[0020] Figure 3 A structural schematic diagram of a clamping assembly of an electrical insulation shielding device provided by an embodiment of the present application is shown;

[0021] Figure 4 A schematic diagram of a clamping assembly and a base of an electrical insulation shielding device provided by an embodiment of the present application is shown;

[0022] Figure 5 A schematic diagram of a clamping assembly and a base of an electrical insulation shielding device provided by an embodiment of the present application is shown;

[0023] Figure 6 A schematic diagram of a clamping assembly of an electrical insulation shielding device provided by an embodiment of the present application is shown.

[0024] In the above drawings, the following reference signs are used:

[0025] 10, insulation baffle; 11, insertion slot; 12, fixed block;

[0026] 20. Snap-fit ​​assembly; 21. Connecting rod; 22. Snap-fit ​​member; 221. First mounting hole; 222. First mounting cylinder; 223. Snap-fit ​​plate; 23. Transmission member; 231. Transmission curved surface; 232. Second mounting hole; 233. Second mounting cylinder; 234. Arc-shaped plate; 24. First locking member; 25. Second locking member;

[0027] 30. Movable pressure rod;

[0028] 40. Mounting seat; 41. Mounting slot;

[0029] 50. Base; 60. Insulation support;

[0030] L. Insertion direction of insulating baffle. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figures 1 to 6 As shown, an embodiment of the present invention provides an electrical insulation shielding device, which includes an insulating baffle 10, a clamping assembly 20, and a movable pressure rod 30. A slot 11 for accommodating a base 50 is provided at the edge of the insulating baffle 10. The clamping assembly 20 includes a connecting rod 21, a clamping member 22, and a transmission member 23. The connecting rod 21 is rotatably arranged around its axis below the insulating baffle 10. The connecting rod 21 extends along the insertion direction L of the insulating baffle. The clamping member 22 and the transmission member 23 are both arranged on the connecting rod 21. The clamping member 22 is located on one side of the slot 11. The side wall of the transmission member 23 has a transmission curved surface 231, and the transmission curved surface 231 is surrounded by the outside of the connecting rod 21. The movable pressure rod 30 is movably arranged on the insulating baffle 10 in the vertical direction and is located below the transmission member 23. Among them, when the base 50 is inserted into the slot 11 and the movable pressure rod 30 is placed on the insulating pillar 60, the movable pressure rod 30 will contact the transmission surface 231 to drive the connecting rod 21 to rotate, and the connecting rod 21 drives the clamping part 22 to rotate relative to the slot 11, so as to utilize the clamping part 22 to be clamped with the side of the base 50 away from the insulating pillar 60.

[0033] When the electrical insulation shielding device needs to be installed between the live side and the de-energized side of the isolating knife switch, first, the insertion slot 11 of the insulation baffle 10 is aligned with the base 50, and then the base 50 is inserted into the insertion slot 11. At this time, the electrical insulation shielding device is released, the movable pressure rod 30 is arranged on the insulation support 60, the movable pressure rod 30 is in contact with the transmission curved surface 231 to drive the connecting rod 21 to rotate, the connecting rod 21 drives the clamping piece 22 to rotate relative to the insertion slot 11, and the clamping piece 22 is clamped with the side of the base 50 away from the insulation support 60. By using the above structure, the rotation of the clamping piece 22 is pushed by the gravity of the insulation baffle device and the reaction force of the insulation support, so that a closed locking state is formed. When the insulation baffle 10 is lifted, the gravity disappears, the clamping piece 22 returns to an open unlocking state, the operation of assembling the insulation baffle on the isolating knife switch is simplified, and the operation is simple.

[0034] In the embodiment, the insertion slot 11 is a rectangular slot, which facilitates the insertion of the base 50 into the insertion slot 11. In the related art, the slot of the insulation baffle is an L-shaped slot. The slot opening of the L-shaped slot needs to be aligned with the base, and then after the base enters the slot opening segment of the L-shaped slot, the insulation baffle needs to be moved so that the base enters the slot bottom segment of the L-shaped slot which is perpendicular to the slot opening segment. A long insulation operating rod is needed to assemble the insulation baffle. The long force arm makes the baffle swing greatly, which is not convenient to operate.

[0035] It should be noted that when designing the electrical insulation shielding device provided in the embodiment, the inventor needs to overcome the following technical difficulties:

[0036] 1) Due to the need for insulation, the insulation baffle and accessories cannot use metal, or at least cannot use large metal parts, which limits the thinking space;

[0037] 2) Because the long rod operation is not flexible, too many operation steps are not suitable;

[0038] 3) Because the force arm is long, a large swing margin self-adapting ability is needed;

[0039] 4) The insulation baffle is large and heavy, so the firmness of the mechanical structure is required to be high.

[0040] For example, Figure 1As shown, the electrically insulating shielding device further comprises two mounting seats 40, which are arranged in a direction perpendicular to the insertion direction L of the insulating shield plate, the upper end of the mounting seat 40 is connected with the lower surface of the insulating shield plate 10, the side walls of the two mounting seats 40 are provided with mounting grooves 41, and the two ends of the movable pressing rod 30 are respectively inserted into the mounting grooves 41 of the two mounting seats 40, and the size of the mounting groove 41 in the vertical direction is greater than the size of the movable pressing rod 30, so that the movable pressing rod 30 can move in the vertical direction in the mounting groove 41. The mounting seat 40 can provide the relevant structure for the assembly and fixation of the movable pressing rod 30, which is convenient for realizing the assembly of the movable pressing rod 30 and ensuring that the movable pressing rod 30 can move in the vertical direction in the mounting groove 41, so that the clamping piece 22 can be smoothly switched between the locked state and the unlocked state.

[0041] In the embodiment, the size of the mounting groove 41 in the insertion direction of the insulating shield plate 10 is greater than the size of the movable pressing rod 30, so that the movable pressing rod 30 can move in the insertion direction of the insulating shield plate 10 in the mounting groove 41, so as to adapt to the number and interval of the umbrella skirts of the insulating support of the different models of disconnectors.

[0042] In the embodiment, the clamping piece 22 is adjustably arranged on the connecting rod 21 around the axis of the connecting rod 21, and the transmission member 23 is adjustably arranged on the connecting rod 21 around the axis of the connecting rod 21. The initial state of the clamping piece 22 can be upward or downward, and the transmission member 23 can rotate outward or inward, so as to adapt to the forward inclination and the vertical installation mode of the disconnector and the position of the angle iron supporting the disconnector at the upper end or the lower end.

[0043] As shown in the drawings, Figure 3 The clamping piece 22 has a first mounting hole 221, the first end of the connecting rod 21 is inserted into the first mounting hole 221, the transmission member 23 has a second mounting hole 232, the second end of the connecting rod 21 is inserted into the second mounting hole 232, the first mounting hole 221 and the second mounting hole 232 are both plum blossom holes, the shape of the first end of the connecting rod 21 is matched with the shape of the first mounting hole 221, and the shape of the second end of the connecting rod 21 is matched with the shape of the second mounting hole 232. The above structure realizes the adjustable position of the clamping piece 22 and the transmission member 23 around the axis of the connecting rod 21, and has the advantages of simple structure and convenient adjustment.

[0044] Specifically, the first end of the connecting rod 21 and the second end of the connecting rod 21 are both provided with a plurality of protruding ribs, when the first end of the connecting rod 21 is inserted into the first mounting hole 221 and the second end of the connecting rod 21 is inserted into the second mounting hole 232, the protruding ribs extend into the plum blossom hole and limit the cooperation with the hole wall of the plum blossom hole, so as to realize the adjustable position and positioning of the clamping piece 22 and the transmission member 23.

[0045] As shown in the drawings, Figure 3As shown, the clamping assembly 20 further comprises a first locking member 24 and a second locking member 25, the first locking member 24 is connected with the first end of the connecting rod 21 to limit the axial position of the clamping member 22 on the connecting rod 21, and the second locking member 25 is connected with the second end of the connecting rod 21 to limit the axial position of the transmission member 23 on the connecting rod 21, so as to realize the assembly of the clamping member 22 and the transmission member 23.

[0046] In the embodiment, the first locking member 24 comprises a first nut and a first gasket, and the second locking member 25 comprises a second nut and a second gasket.

[0047] It should be noted that the weight of the transmission member 23 is greater than the weight of the clamping member 22, so that the clamping member 22 in the initial state is in any direction, and the transmission member 23 is always downward.

[0048] As shown in the drawings, Figure 3 The clamping member 22 comprises a first mounting cylinder 222 and a clamping plate 223, the first mounting cylinder 222 is sleeved on the connecting rod 21, and one end of the clamping plate 223 is connected with the outer side wall of the first mounting cylinder 222. The transmission member 23 comprises a second mounting cylinder 233 and an arc-shaped plate 234, the second mounting cylinder 233 is sleeved on the connecting rod 21, and one end of the arc-shaped plate 234 is connected with the outer side wall of the second mounting cylinder 233, and the arc-shaped plate 234 has a transmission curved surface 231. The above structure has the advantages of simple structure and convenient assembly.

[0049] In the embodiment, the weight of the arc-shaped plate 234 is greater than the weight of the clamping plate 223.

[0050] In the embodiment, the transmission curved surface 231 is a circular arc structure, which is convenient for driving cooperation between the movable pressing rod 30 and the transmission member 23.

[0051] As shown in the drawings, Figure 1 The edge of the insulating baffle 10 is provided with a plurality of insertion slots 11, the plurality of insertion slots 11 are arranged in the direction perpendicular to the insertion direction of the insulating baffle 10, the electrical insulation shielding device comprises a plurality of clamping assemblies 20, one clamping assembly 20 is arranged on each side of each insertion slot 11, and the transmission curved surfaces 231 of the plurality of clamping assemblies 20 are matched with the movable pressing rod 30. The cooperation of the plurality of insertion slots 11 and the plurality of clamping assemblies 20 can improve the assembly firmness of the electrical insulation shielding device. Moreover, the cooperation of the movable pressing rod 30 and the plurality of clamping assemblies 20 can simplify the structure of the device.

[0052] In the embodiment, when the movable pressing rod 30 is arranged on the insulating support, the movable pressing rod 30 is clamped between the umbrella skirts of the insulating support.

[0053] The two sides of the insertion slot 11 form a tooth-shaped protruding structure, and the tooth-shaped protruding structure of the insulating baffle can be clamped between the bases of the three sets of disconnectors.

[0054] As shown in Figure 1 The lower surface of the insulating baffle 10 is provided with a fixed block 12, and the connecting rod 21 is rotatably arranged in the fixed block 12 to realize the assembly of the connecting rod 21.

[0055] In the initial state, the transmission member 23 and the clamping member 22 are downward due to the gravity, and the tooth-shaped protruding structure of the insulating baffle can be clamped between the bases of the three sets of disconnectors. When the insulating baffle is placed on the insulating support of the disconnector, the movable pressing rod 30 is clamped between the umbrella skirts of the insulating support. Due to the gravity of the insulating baffle, the movable pressing rod is pushed upward, the transmission member 23 is rotated, the clamping member 22 is driven to change from the downward state to the horizontal state, and is clamped behind the base of the disconnector, so that the insulating baffle cannot fall off from the disconnector. When disassembling, the insulating baffle is lifted, the movable pressing rod loses the pushing force, the clamping member returns to the downward state, the tooth-shaped protruding structure of the insulating baffle can be separated from the bases of the three sets of disconnectors, and the insulating baffle can be removed.

[0056] It should be noted that in actual use, some insulating supports are short and small, and the movable pressing rod is outside the outermost umbrella skirt of the insulating support in the initial state and cannot be clamped between the umbrella skirts. In order to avoid this situation, two or more movable pressing rods can be arranged according to the actual situation to ensure that at least one movable pressing rod is squeezed between the umbrella skirts.

[0057] Through the device provided in the embodiment, the old mode is based on the base of the disconnector, and the present scheme focuses on the insulating support of the disconnector, and the gravity of the insulating baffle and the reaction force of the insulating support are used to push the rotation of the clamping member to form a closed locking state. When the insulating baffle is lifted, the gravity disappears, and the clamping member returns to the open unlocking state. The present scheme can easily fix the insulating baffle even in the case of large swing margin.

[0058] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0059] The foregoing is considered as illustrative only of the principles of the application. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the application to the exact construction and practice described. Accordingly, all such variations are intended to be included within the scope of the present application as defined in the following claims, along with full equivalents thereof.

[0060] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the components themselves.

[0061] For the convenience of description, spatial relative terms such as "above", "upper", "top", "up", "lower", "bottom", and the like can be used herein to describe the spatial position relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device as described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0062] In addition, it should be noted that the use of the terms "first", "second", and the like do not have a special meaning, and are merely used to distinguish the corresponding components, and therefore should not be construed as limiting the scope of protection of the present application.

[0063] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. An electrically insulating screening device, characterized in that The electrical insulation shielding device comprises: an insulation baffle (10) provided with a slot (11) accommodating a base (50) at its edge; a clamping assembly (20) comprising a connecting rod (21), a clamping piece (22) and a transmission piece (23), the connecting rod (21) is rotatably arranged below the insulation baffle (10) around its axis, the connecting rod (21) extends along the insertion direction of the insulation baffle (10), the clamping piece (22) and the transmission piece (23) are arranged on the connecting rod (21), the clamping piece (22) is located on one side of the slot (11), and the side wall of the transmission piece (23) has a transmission curved surface (231), and the transmission curved surface (231) surrounds the outside of the connecting rod (21); a movable pressing rod (30) vertically movably arranged on the insulation baffle (10) and below the transmission piece (23); wherein, when the base (50) is inserted into the slot (11) and the movable pressing rod (30) is arranged on the insulation support (60), the movable pressing rod (30) is in contact with the transmission curved surface (231) to drive the connecting rod (21) to rotate, the connecting rod (21) drives the clamping piece (22) to rotate relative to the slot (11), and the clamping piece (22) is clamped with the side of the base (50) away from the insulation support (60).

2. The electrically insulating screening device according to claim 1, characterized in that The electrical insulation shielding device further comprises two mounting seats (40), the two mounting seats (40) are arranged in a direction perpendicular to the insertion direction of the insulation baffle (10), the upper end of the mounting seat (40) is connected with the lower surface of the insulation baffle (10), the side walls of the two mounting seats (40) facing each other are provided with mounting grooves (41), and the two ends of the movable pressing rod (30) are respectively inserted into the mounting grooves (41) of the two mounting seats (40).

3. The electrically insulating screening device according to claim 2, characterized in that The size of the mounting groove (41) in the insertion direction of the insulation baffle (10) is greater than that of the movable pressing rod (30), so that the movable pressing rod (30) can move in the insertion direction of the insulation baffle (10) in the mounting groove (41).

4. The electrical insulation shielding device according to claim 1, wherein: the clamping piece (22) is adjustably arranged on the connecting rod (21) around the axis of the connecting rod (21); and / or the transmission piece (23) is adjustably arranged on the connecting rod (21) around the axis of the connecting rod (21).

5. The electrically insulating screening device according to claim 4, characterized in that The clamping piece (22) has a first mounting hole (221), a first end of the connecting rod (21) is arranged in the first mounting hole (221), the transmission piece (23) has a second mounting hole (232), a second end of the connecting rod (21) is arranged in the second mounting hole (232), the first mounting hole (221) and the second mounting hole (232) are all tulip holes, the shape of the first end of the connecting rod (21) is matched with the shape of the first mounting hole (221), and the shape of the second end of the connecting rod (21) is matched with the shape of the second mounting hole (232).

6. The electrically insulating screening device according to claim 5, characterized in that The clamping assembly (20) further comprises a first locking piece (24) and a second locking piece (25), the first locking piece (24) is connected with the first end of the connecting rod (21) to limit the axial position of the clamping piece (22) on the connecting rod (21), and the second locking piece (25) is connected with the second end of the connecting rod (21) to limit the axial position of the transmission piece (23) on the connecting rod (21).

7. The electrically insulating screening device according to any one of claims 1 to 6, characterized in that The weight of the transmission piece (23) is greater than the weight of the clamping piece (22).

8. The electrically insulating screening device according to any one of claims 1 to 6, characterized in that The edge of the insulating baffle (10) is provided with a plurality of insertion slots (11), a plurality of insertion slots (11) are arranged in a direction perpendicular to the insertion direction of the insulating baffle (10), the electrical insulation shielding device comprises a plurality of clamping assemblies (20), one clamping assembly (20) is arranged on each side of each insertion slot (11), and the transmission curved surface (231) of each clamping assembly (20) is matched with the movable pressing rod (30).

9. The electrical insulation shielding device according to any one of claims 1 to 6, characterized in that, The clamping piece (22) comprises a first mounting cylinder (222) and a clamping plate (223), the first mounting cylinder (222) is sleeved on the connecting rod (21), and one end of the clamping plate (223) is connected with the outer side wall of the first mounting cylinder (222); and / or, The transmission piece (23) comprises a second mounting cylinder (233) and an arc-shaped plate (234), the second mounting cylinder (233) is sleeved on the connecting rod (21), and one end of the arc-shaped plate (234) is connected with the outer side wall of the second mounting cylinder (233), and the arc-shaped plate (234) has the transmission curved surface (231).

10. The electrically insulating screening device according to any one of claims 1 to 6, characterized in that The lower surface of the insulating baffle (10) is provided with a fixed block (12), and the connecting rod (21) is rotatably arranged in the fixed block (12).

Images