Isolating switch protective cover capable of live working and insulating clamp

Abstract

The isolating switch protective cover comprises a protective baffle, two installation grooves are formed in one side of the protective baffle, the inner end walls of the installation grooves are arranged to be circular arcs, the two ends of the protective baffle are connected with clamping pieces through rotating shafts, and the clamping pieces are matched with the installation grooves to be fixed to porcelain bottles. The clamping piece comprises an arc-shaped plate connected with the protective baffle through a rotating shaft. According to the invention, the end parts of the telescopic connecting plates can move in the middle sleeve plate to adjust the distance between the two mounting grooves in the two telescopic connecting plates, so that isolation switches of different sizes can be adapted, a wedge-shaped block is in limited insertion connection with an adaptive third positioning hole, a clamping sheet is prevented from rotating reversely, the clamping sheet can only rotate in one direction to clamp a porcelain bottle, and the porcelain bottle is prevented from being damaged. The protection cover is convenient to install on the porcelain bottle, the stability after installation is high, the insulation supporting rod is operated to complete the installation work without climbing a tower, installation is convenient, the protection cover is suitable for hot-line operation, cost is low, efficiency is high, and risks caused by climbing work are also avoided.

Description

Technical Field

[0001] The invention relates to the technical field of isolating switches, in particular to a protective cover and an insulating clamp of an isolating switch capable of live operation. Background Art

[0002] Isolating switch, also known as "knife switch" for short, is an electrical appliance used in high-voltage switchgear. Isolating switch is mainly used to isolate power supply, switch operation, connect and disconnect low current circuit, and play an isolating role in the circuit. Its main feature is that it has no arc extinguishing ability and can only open and close the circuit without load current. Its working principle and structure are relatively simple, but due to its large usage and high working reliability requirements, it has a great impact on the design, establishment and safe operation of substations and power plants. Isolating switches can be divided into indoor type, outdoor type, horizontal rotary type, vertical rotary type, plug-in type and other isolating switches.

[0003] Existing isolating switch protective covers generally require manual climbing to the isolating switch area and manual installation. Moreover, live working is dangerous, and there is a risk of falling while climbing. Climbing also makes the installation efficiency low and the cost high. Summary of the invention

[0004] In order to solve the defects in the prior art, the present invention provides a disconnector protective cover and an insulating clamp capable of live operation.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The protective cover of the isolating switch capable of live operation of the present invention comprises a protective baffle, one side of the protective baffle is provided with two mounting grooves, the inner end walls of the mounting grooves are set as circular arcs, both end portions of the protective baffle are connected with cards which cooperate with the mounting grooves and are fixed to a porcelain bottle via a rotating shaft, the cards comprise an arc-shaped plate connected to the protective baffle via a rotating shaft, and one end of the arc-shaped plate is provided with a limit baffle for sealing the opening of the mounting groove.

[0007] As a preferred technical solution of the present invention, the protective baffle includes a middle sleeve plate, both ends of the middle sleeve plate are provided with telescopic connecting plates, the mounting grooves and the cards are both provided on the telescopic connecting plates, and the outer ends of the telescopic connecting plates are provided with adjustment connecting plates.

[0008] As a preferred technical solution of the present invention, a plurality of first positioning columns are provided on one end of the telescopic connecting plate extending into the interior of the middle sleeve plate, a plurality of first positioning holes matching the first positioning columns are opened on the middle sleeve plate, a positioning strip is provided in the middle of the telescopic connecting plate, and a positioning groove matching the positioning strip is provided on the inner wall of the middle sleeve plate.

[0009] As a preferred technical solution of the present invention, a T-shaped guide slider is provided in the middle of one side of the adjusting connecting plate, a guide rail matching the guide slider is provided on the telescopic connecting plate, a second positioning column located on both sides of the guide rail is provided on the telescopic connecting plate, and a plurality of second positioning holes matching the second positioning columns are provided on the adjusting connecting plate.

[0010] As a preferred technical solution of the present invention, the telescopic connecting plate is provided with an arc-shaped hole and a plurality of evenly distributed and rectangular third positioning holes located outside the arc-shaped hole, the limit baffle is provided with a wedge block adapted to the plurality of third positioning holes, and the limit baffle is provided with a guide slide rod that slides in matching fashion with the arc-shaped groove.

[0011] As a preferred technical solution of the present invention, the outer wall of the telescopic connecting plate is provided with a limiting head strip.

[0012] The insulating clamp of the isolating switch protective cover capable of live operation comprises the above-mentioned isolating switch protective cover capable of live operation, comprising an insulating support rod, the top end of the insulating support rod is connected with a locking connecting rod, the end of the locking connecting rod is provided with a horizontal connecting rod, and the horizontal connecting rod is provided with three positioning clamps

[0013] As a preferred technical solution of the present invention, the positioning fixture includes a ring sleeved on the horizontal connecting rod, a first locking rod is threadedly connected to the ring, a horizontal support plate is provided on the outer wall of the ring, and an elastic clamp matching the horizontal support plate is provided on the horizontal support plate.

[0014] As a preferred technical solution of the present invention, a connecting groove is provided at one end of the locking connecting rod, and a plug-in rod matching the connecting groove is provided on the middle ring. The plug-in rod and the horizontal support plate are in the same plane, and the end of the locking connecting rod is threadedly connected to a second locking rod.

[0015] As a preferred technical solution of the present invention, a locking ring is provided on one end of the locking connecting rod away from the connecting groove, and a third locking rod is threadedly connected to the locking ring.

[0016] The beneficial effects of the present invention are:

[0017] 1. This kind of isolating switch protective cover capable of live operation has an installation groove and a card connected via a rotating shaft, so that after the porcelain bottle enters the installation groove, the porcelain bottle pushes the arc plate of the card to rotate via the rotating shaft, and the arc plate drives the limit baffle to rotate around the rotating shaft until the porcelain bottle enters the interior of the installation groove. At this time, the limit baffle seals the opening of the installation groove, and the installation of the protective cover is completed, which is convenient for the installation of the protective cover and improves the efficiency of the installation of the protective cover.

[0018] 2. In this kind of isolating switch protective cover capable of live operation, the end of the telescopic connecting plate can move inside the middle cover plate to adjust the distance between the two mounting grooves on the two telescopic connecting plates, thereby adapting to isolating switches of different sizes.

[0019] 3. For this kind of isolating switch protective cover that can be operated under power, when the porcelain bottle pushes the arc plate to rotate via the rotating shaft, the arc plate drives the limit baffle to rotate, so that the guide slide bar moves inside the arc groove, and the wedge block moves at the same time until the protective cover is installed on the porcelain bottle. The wedge block is limitedly plugged into the corresponding third positioning hole to prevent the card from rotating in the opposite direction, so that the card can only rotate in one direction to clamp the porcelain bottle, which is convenient for installing the protective cover on the porcelain bottle, and the stability after installation is also high.

[0020] 4. This kind of insulating clamp for the isolating switch protective cover that can be operated under live conditions, when installing the protective cover on the isolating switch, the end of the protective cover away from the installation slot is clamped between the horizontal support plate and the elastic clamp plate, and the protective cover is supported to the same height as the isolating switch by the insulating support rod, and then the horizontal support plate is moved horizontally, and the horizontal support plate pushes the protective cover to move, so that the installation slot on the protective cover matches the porcelain bottle, and the porcelain bottle pushes the arc plate of the card to rotate via the rotating shaft, and the arc plate drives the limit baffle to rotate until the porcelain bottle enters the inside of the installation slot. At this time, the limit baffle just seals the opening of the installation slot, and then the horizontal support plate and the elastic clamp plate are separated from the protective cover, and the installation of the protective cover is completed. The installation work is completed by operating the insulating support rod, and there is no need to climb the pole tower. It is easy to install and suitable for live operation. It has low cost and high efficiency, and also avoids the risks brought by climbing operations.

[0021] 5. For this kind of insulating clamp for the isolating switch protective cover capable of live operation, after the insulating clamp is damaged, the locking connecting rod can be separated from the horizontal support plate by the second locking rod and the third locking rod, and the insulating support rod can also be separated from the locking connecting rod, so that the damaged part can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of a protective cover of an isolating switch capable of live operation according to the present invention;

[0024] Figure 2 It is a schematic diagram of the connection structure of the telescopic connecting plate and the clamping plate of the protective cover of the isolating switch capable of live operation according to the present invention;

[0025] Figure 3It is a cross-sectional view of the connection structure of the adjustment connecting plate, the telescopic connecting plate and the clamping plate of the protective cover of the isolating switch capable of live operation according to the present invention;

[0026] Figure 4 It is a schematic diagram of the exploded structure of the insulating clamp of the isolating switch protective cover capable of live operation of the present invention;

[0027] Figure 5 It is a schematic diagram of the connection structure of the horizontal connecting rod and the positioning clamp of the insulating clamp of the isolating switch protective cover capable of live operation of the present invention;

[0028] Figure 6 The invention is a schematic diagram of the locking connecting rod structure of the insulating clamp of the isolating switch protective cover capable of live operation.

[0029] In the figure: 1. protective baffle; 2. mounting groove; 3. card; 4. arc plate; 5. limit baffle; 6. middle sleeve plate; 7. telescopic connecting plate; 8. adjusting connecting plate; 9. first positioning column; 10. first positioning hole; 11. positioning strip; 12. positioning groove; 13. guide slide block; 14. guide slide rail; 15. second positioning column; 16. second positioning hole; 17. arc hole; 18. third positioning hole; 19. wedge block; 20. guide slide bar; 21. limit head strip; 22. insulating support rod; 23. locking connecting rod; 24. horizontal connecting rod; 25. positioning fixture; 26. collar; 27. first locking rod; 28. horizontal support plate; 29. ​​elastic splint; 30. connecting groove; 31. plug-in rod; 32. second locking rod; 33. locking ring; 34. third locking rod. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the protective cover of the isolating switch capable of live operation of the present invention comprises a protective baffle 1, two mounting grooves 2 are provided on one side of the protective baffle 1, the inner end wall of the mounting groove 2 is set as a circular arc, both end portions of the protective baffle 1 are connected with a card 3 which cooperates with the mounting groove 2 and is fixed to the porcelain bottle via a rotating shaft, the card 3 comprises an arc plate 4 connected to the protective baffle 1 via a rotating shaft, one end of the arc plate 4 is provided with a limit baffle 5 for sealing the opening of the mounting groove 2, through the provided mounting groove 2 and the card 3 connected via the rotating shaft, after the porcelain bottle enters the mounting groove 2, the porcelain bottle pushes the arc plate 4 of the card 3 to rotate via the rotating shaft, and the arc plate 4 drives the limit baffle 5 to rotate around the rotating shaft until the porcelain bottle enters the interior of the mounting groove 2, at this time, the limit baffle 5 seals the opening of the mounting groove 2, and the installation of the protective cover is completed, which is convenient for the installation of the protective cover and improves the efficiency of the installation of the protective cover.

[0032] Among them, the protective baffle 1 includes a middle sleeve plate 6, both ends of the middle sleeve plate 6 are provided with a telescopic connecting plate 7, the mounting groove 2 and the card 3 are both arranged on the telescopic connecting plate 7, the outer end of the telescopic connecting plate 7 is provided with an adjusting connecting plate 8, and the end of the telescopic connecting plate 7 extending into the interior of the middle sleeve plate 6 is provided with a plurality of first positioning columns 9, and the middle sleeve plate 6 is provided with a plurality of first positioning holes 10 adapted to the first positioning columns 9, a positioning strip 11 is provided in the middle of the telescopic connecting plate 7, and a positioning groove 12 matching the positioning strip 11 is provided on the inner wall of the middle sleeve plate 6, a T-shaped guide slider 13 is provided in the middle of one side of the adjusting connecting plate 8, a guide rail 14 matching the guide slider 13 is provided on the telescopic connecting plate 7, and a second positioning column 15 located on both sides of the guide rail 14 is provided on the telescopic connecting plate 7, and the adjusting connecting plate 8 is provided with a plurality of second positioning holes 16 adapted to the second positioning columns 15, and the end of the telescopic connecting plate 7 can move inside the middle plate 6 to adjust the distance between the two mounting grooves 2 on the two telescopic connecting plates 7, so as to adapt to isolating switches of different sizes, wherein the setting of the first positioning column 9 and the first positioning hole 10 can position the telescopic connecting plate 7, improve the stability of the connection between the telescopic connecting plate 7 and the middle plate 6, and the positioning bar 11 and the positioning groove 12 improve the stability of the movement of the telescopic connecting plate 7; wherein the second positioning column 15 is adapted to the second positioning hole 16, and the distance between the adjusting connecting plate 8 and the middle plate 6 can be adjusted, thereby adjusting the size of the mounting groove 2, so that the stability of the porcelain bottle after entering the mounting groove 2 is higher, and it is also adapted to the use of isolating switches of different sizes.

[0033] Among them, the telescopic connecting plate 7 is provided with an arc hole 17 and a plurality of equidistantly distributed and rectangular third positioning holes 18 located outside the arc hole 17, the limiting baffle 5 is provided with a wedge block 19 matched with the plurality of third positioning holes 18, and the limiting baffle 5 is provided with a guide slide bar 20 that slides in match with the arc groove 17. When the porcelain bottle pushes the arc plate 4 to rotate via the rotating shaft, the arc plate 4 drives the limiting baffle 5 to rotate, so that the guide slide bar 20 moves inside the arc groove, and at the same time, the wedge block 19 moves until the protective cover is installed on the porcelain bottle. The wedge block 19 is limitedly plugged into the corresponding third positioning hole 18 to prevent the card 3 from rotating in the opposite direction, so that the card 3 can only rotate in one direction to clamp the porcelain bottle, which is convenient for installing the protective cover on the porcelain bottle, and the stability after installation is also high.

[0034] The insulating clamp of the isolating switch protective cover capable of live operation includes the above-mentioned isolating switch protective cover capable of live operation, including an insulating support rod 22, the top of the insulating support rod 22 is connected to a locking connecting rod 23, the end of the locking connecting rod 23 is provided with a horizontal connecting rod 24, and the horizontal connecting rod 24 is provided with three positioning clamps 25, the positioning clamp 25 includes a collar 26 sleeved on the horizontal connecting rod 24, the collar 26 is threadedly connected with a first locking rod 27, the outer wall of the collar 26 is provided with a horizontal support plate 28, the horizontal support plate 28 is provided with an elastic clamp 29 matching the horizontal support plate 28, the outer wall of the telescopic connecting plate 7 is provided with a limit head strip 21, the positioning clamp 25 is locked to the horizontal support rod 28 through the first locking rod 27, and when the protective cover is installed on the isolating switch, the protective cover is kept away from the insulating support rod 22. One end of the mounting groove 2 is clamped between the horizontal support plate 28 and the elastic clamp plate 29. After the protective cover is supported to the same height as the isolating switch by using the insulating support rod 22, the horizontal support plate 28 is moved horizontally, and the horizontal support plate 28 pushes the protective cover to move, so that the mounting groove 2 on the protective cover matches the porcelain bottle. The porcelain bottle pushes the arc plate 4 of the card 3 to rotate via the rotating shaft, and the arc plate 4 drives the limit baffle 5 to rotate until the porcelain bottle enters the interior of the mounting groove 2. At this time, the limit baffle 5 just seals the opening of the mounting groove 2, and then the horizontal support plate 28 and the elastic clamp plate 29 are separated from the protective cover, and the installation of the protective cover is completed. The installation work is completed by operating the insulating support rod 22, and there is no need to climb the pole tower. The installation is convenient, suitable for live operation, low cost, high efficiency, and avoids the risks brought by climbing operations.

[0035] Among them, one end of the locking link 23 is provided with a connecting groove 30, and the middle ring 26 is provided with a plug-in rod 31 that matches the connecting groove 30. The plug-in rod 31 and the horizontal support plate 28 are in the same plane, and the end of the locking link 23 is threadedly connected with a second locking rod 32. The end of the locking link 23 away from the connecting groove 30 is provided with a locking ring 33, and the locking ring 33 is threadedly connected with a third locking rod 34. After the insulating clamp is damaged, the second locking rod 32 and the third locking rod 34 can be used to separate the locking link 23 from the horizontal support plate 28, and the insulating support rod 22 can also be separated from the locking link 23, so that the damaged part can be replaced.

[0036] During operation, this type of isolating switch protective cover that can operate under power, through the provided installation groove 2 and the card 3 connected via the rotating shaft, allows the porcelain bottle to enter the installation groove 2, and the porcelain bottle pushes the arc plate 4 of the card 3 to rotate via the rotating shaft, and the arc plate 4 drives the limit baffle 5 to rotate around the rotating shaft until the porcelain bottle enters the interior of the installation groove 2. At this time, the limit baffle 5 seals the opening of the installation groove 2, and the installation of the protective cover is completed, which facilitates the installation of the protective cover and improves the efficiency of the installation of the protective cover.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A protective cover for isolating switches capable of live operation, characterized in that: The invention comprises a protective baffle (1), wherein two mounting grooves (2) are provided on one side of the protective baffle (1), the inner end wall of the mounting groove (2) is set as a circular arc, and both end portions of the protective baffle (1) are connected to a card (3) which cooperates with the mounting groove (2) and is fixed to a porcelain bottle via a rotating shaft, and the card (3) comprises an arc plate (4) connected to the protective baffle (1) via a rotating shaft, and one end of the arc plate (4) is provided with a limit baffle (5) for sealing the opening of the mounting groove (2).

2. The protective cover of the isolating switch capable of live operation according to claim 1 is characterized in that: The protective baffle (1) comprises a middle cover plate (6), both ends of the middle cover plate (6) are provided with telescopic connecting plates (7), the mounting groove (2) and the card (3) are both provided on the telescopic connecting plate (7), and the outer end of the telescopic connecting plate (7) is provided with an adjustment connecting plate (8).

3. The protective cover of the isolating switch capable of live operation according to claim 2, characterized in that: A plurality of first positioning columns (9) are provided on one end of the telescopic connecting plate (7) extending into the interior of the middle sleeve plate (6); a plurality of first positioning holes (10) matching the first positioning columns (9) are provided on the middle sleeve plate (6); a positioning strip (11) is provided in the middle of the telescopic connecting plate (7); and a positioning groove (12) matching the positioning strip (11) is provided on the inner wall of the middle sleeve plate (6).

4. The protective cover of the isolating switch capable of live operation according to claim 3 is characterized in that: A T-shaped guide slide block (13) is provided in the middle of one side of the adjustment connecting plate (8), a guide slide rail (14) matching the guide slide block (13) is provided on the telescopic connecting plate (7), a second positioning column (15) located on both sides of the guide slide rail (14) is provided on the telescopic connecting plate (7), and a plurality of second positioning holes (16) matching the second positioning columns (15) are provided on the adjustment connecting plate (8).

5. The protective cover of the isolating switch capable of live operation according to claim 4, characterized in that: The telescopic connecting plate (7) is provided with an arc-shaped hole (17) and a plurality of third positioning holes (18) which are equally spaced and rectangular and are located outside the arc-shaped hole (17); the limiting baffle (5) is provided with a wedge-shaped block (19) which matches the plurality of third positioning holes (18); and the limiting baffle (5) is provided with a guide slide bar (20) which matches and slides with the arc-shaped groove (17).

6. The protective cover of the isolating switch capable of live operation according to claim 5, characterized in that: The outer wall of the telescopic connecting plate (7) is provided with a limiting head strip (21).

7. An insulating clamp for a disconnector protective cover capable of live working, comprising the disconnector protective cover capable of live working according to any one of claims 1 to 6, characterized in that: It comprises an insulating support rod (22), the top end of which is connected to a locking connecting rod (23), the end of which is provided with a horizontal connecting rod (24), and the horizontal connecting rod (24) is provided with three positioning clamps (25).

8. The insulating clamp for the isolating switch protection cover capable of live operation according to claim 7, characterized in that: The positioning fixture (25) comprises a collar (26) sleeved on the horizontal connecting rod (24), a first locking rod (27) being threadedly connected to the collar (26), a horizontal support plate (28) being provided on the outer wall of the collar (26), and an elastic clamping plate (29) matching the horizontal support plate (28) being provided on the horizontal support plate (28).

9. The insulating clamp for the isolating switch protection cover capable of live operation according to claim 8, characterized in that: One end of the locking connecting rod (23) is provided with a connecting groove (30), and a plug-in rod (31) matching and plugging with the connecting groove (30) is provided on the middle sleeve ring (26), the plug-in rod (31) and the horizontal support plate (28) are in the same plane, and the end of the locking connecting rod (23) is threadedly connected with a second locking rod (32).

10. The insulating clamp for the isolating switch protection cover capable of live operation according to claim 9, characterized in that: A locking ring (33) is provided on one end of the locking connecting rod (23) away from the connecting groove (30), and a third locking rod (34) is threadedly connected to the locking ring (33).

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