High-voltage isolating switch with insulating protective sleeve

Abstract

The utility model relates to the technical field of high-voltage isolating switches, and discloses a high-voltage isolating switch with an insulating protective sleeve, which comprises a base, a first pillar insulator fixedly mounted on the top of the base, a second pillar insulator fixedly mounted on the top of the base, and a third pillar insulator fixedly mounted on the top of the base. The top of the first pillar insulator is fixedly provided with an outgoing line connecting plate, the top of the outgoing line connecting plate is fixedly provided with a moving contact, and the top of the second pillar insulator is fixedly provided with an incoming line connecting plate. The T-shaped sliding rod can be driven to slide upwards and reset through the cooperation of the elasticity of the spring and the guiding of the guiding rod, and at the same time, the two sets of rubber protection sleeves can be driven to rotate and fit together through the cooperation of the connecting rod and the L rod, and at the moment, the moving contact after opening can be protected through the two sets of rubber protection sleeves, and electric shock accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage isolating switches, in particular to a high-voltage isolating switch with an insulating protective sleeve. Background Art

[0002] High-voltage disconnectors are important switchgear in the electrical systems of power plants and substations and must be used in conjunction with high-voltage circuit breakers.

[0003] When the line needs to be inspected, the staff needs to use an insulating rod to pull open the knife switch of the high-voltage disconnector to separate the knife switch from the moving contact, thereby completing the power-off operation and facilitating the staff to inspect the line. However, after the knife switch is separated from the moving contact, the moving contact is in an exposed state. During the circuit maintenance operation, electric shock accidents are prone to occur, posing a safety hazard. Utility Model Content

[0004] The purpose of the utility model is to provide a high-voltage disconnector with an insulating protective sleeve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-voltage disconnector with an insulating protective sleeve, comprising a base, a No. 1 pillar insulator is fixedly installed on the top of the base, a No. 2 pillar insulator is fixedly installed on the top of the base, an outgoing line connection plate is fixedly installed on the top of the No. 1 pillar insulator, a moving contact is fixedly installed on the top of the outgoing line connection plate, an incoming line connection plate is fixedly installed on the top of the No. 2 pillar insulator, a static contact is fixedly installed on the top of the incoming line connection plate, a knife switch is hinged on the outer wall of the static contact, a fixed pull buckle is provided on the knife switch, a buckle groove for the fixed pull buckle to be inserted is provided on the moving contact, a protective mechanism for protecting the moving contact is provided on the No. 1 pillar insulator, and the moving contact after the opening of the switch can be protected by providing the protective mechanism, and the protective mechanism comprises:

[0006] An L-rod, the L-rod being hinged to the outer wall of the outlet plate, the outer wall of the L-rod being fixedly mounted with a rubber protective sleeve, and the protective sleeve can be provided to protect the moving contact after the switch is opened;

[0007] A guide rod, wherein the guide rod is fixedly mounted on the inner wall of the No. 1 support insulator, the outer wall of the guide rod is slidably connected with a T-shaped slide rod, the side wall of the T-shaped slide rod is fixedly mounted with a push rod, an end of the push rod away from the T-shaped slide rod is fixedly mounted with an insulating rod, the outer wall of the insulating rod is fitted with the outer wall of the knife switch, and the insulating rod is provided in combination with the push rod to drive the T-shaped slide rod to slide downward while the knife switch is closed;

[0008] A connecting rod, one end of which is hinged on the top of the T-shaped sliding rod, and the other end of which is hinged on the outer wall of the L-rod. The connecting rod can drive the L-rod to rotate through the sliding cooperation of the T-shaped sliding rod.

[0009] Preferably, a spring is sleeved on the outer wall of the guide rod.

[0010] Preferably, one end of the spring is fixedly mounted on the bottom of the T-shaped slide bar, and the other end of the spring is fixedly mounted on the inner wall of the No. 1 support insulator. By arranging the spring, the T-shaped slide bar can be pushed upward to reset.

[0011] Preferably, a cleaning mechanism for cleaning the moving contact is provided on the rubber protective sleeve. By providing the cleaning mechanism, the surface of the moving contact can be cleaned to prevent impurities from affecting the contact effect between the moving contact and the knife switch. The cleaning mechanism includes a rotating shaft, which is rotatably connected to the inner wall of the rubber protective sleeve, and the rotating shaft passes through the rubber protective sleeve.

[0012] Preferably, a brush is fixedly mounted on one end of the rotating shaft, and a wind cup is fixedly mounted on the other end of the rotating shaft.

[0013] Preferably, the brush is attached to the outer wall of the moving contact, and impurities on the outer wall of the moving contact can be cleaned by arranging the brush.

[0014] Compared with the prior art, the utility model provides a high-voltage disconnector with an insulating protective sleeve, which has the following beneficial effects:

[0015] 1. For the high-voltage disconnector with insulating protective cover, when the knife switch and the moving contact are disconnected, the elasticity of the spring and the guidance of the guide rod can drive the T-shaped slide bar to slide upward and reset. At the same time, the connecting rod and the L rod can drive the two sets of rubber protective covers to rotate and fit together. At this time, the two sets of rubber protective covers can protect the moving contact after the disconnection to avoid electric shock accidents.

[0016] 2. For the high-voltage disconnector with insulating protective cover, when the two sets of rubber protective covers protect the moving contact, the wind cup can be driven to rotate by the wind force at high altitude. The outer wall of the moving contact can be cleaned by the rotation of the rotating shaft and the brush to prevent impurities from adhering to the moving contact and affecting the contact effect between the moving contact and the knife switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall open-gate structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall closing state structure of the utility model;

[0019] Figure 3It is a schematic diagram of the structure of the utility model in an overall open state when viewed from above;

[0020] Figure 4 This is a schematic diagram of the overall explosion structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the rubber protective cover of the utility model;

[0022] Figure 6 For this utility model Figure 1 A is an enlarged structural diagram of FIG.

[0023] In the figure: 1. base; 2. No. 1 support insulator; 3. No. 2 support insulator; 4. outgoing line connection plate; 5. moving contact; 6. incoming line connection plate; 7. static contact; 8. knife switch; 9. fixed pull buckle; 91. buckle groove; 10. protection mechanism; 101. L rod; 102. guide rod; 103. connecting rod; 104. rubber protective cover; 105. T-shaped sliding rod; 106. push rod; 107. insulating rod; 108. spring; 11. cleaning mechanism; 111. rotating shaft; 112. brush; 113. wind cup. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a high-voltage disconnector with an insulating protective sleeve, comprising a base 1, a No. 1 support insulator 2 is fixedly installed on the top of the base 1, a No. 2 support insulator 3 is fixedly installed on the top of the base 1, an outgoing line connecting plate 4 is fixedly installed on the top of the No. 1 support insulator 2, a moving contact 5 is fixedly installed on the top of the outgoing line connecting plate 4, an incoming line connecting plate 6 is fixedly installed on the top of the No. 2 support insulator 3, a static contact 7 is fixedly installed on the top of the incoming line connecting plate 6, a knife switch 8 is hinged on the outer wall of the static contact 7, a fixed pull buckle 9 is arranged on the knife switch 8, a buckle groove 91 for the fixed pull buckle 9 to be inserted into is opened on the moving contact 5, and a protective mechanism 10 for protecting the moving contact 5 is arranged on the No. 1 support insulator 2, and the protective mechanism 10 can be provided to protect the moving contact 5 after the opening of the switch to avoid electric shock accidents.

[0025] The protective mechanism 10 comprises an L-rod 101, a guide rod 102, a connecting rod 103, a rubber protective sleeve 104, a T-shaped sliding rod 105, a top rod 106, an insulating rod 107, and a spring 108; the L-rod 101 is hinged to the outer wall of the outlet terminal 4, and the rubber protective sleeve 104 can be driven to rotate by the L-rod 101. When the knife switch 8 needs to be closed with the moving contact 5, the rubber protective sleeve 104 can be driven to move away from the moving contact 5 by the L-rod 101. After separation, the rubber protective sleeve 104 can be driven by the L rod 101 to rotate to the outer wall of the moving contact 5 to protect the moving contact 5. The outer wall of the L rod 101 is fixedly installed with a rubber protective sleeve 104. The two sets of rubber protective sleeves 104 can protect the moving contact 5 after the separation to avoid electric shock accidents. The guide rod 102 is fixedly installed on the inner wall of the No. 1 pillar insulator 2. The outer wall of the guide rod 102 is slidably connected with a T-shaped slide bar 105. The outer wall of the guide rod 102 is sleeved with a spring 108. By setting the guide rod 102, a guide can be provided for the spring 108 and the T-shaped slide bar 105. One end of the spring 108 is fixedly installed at the bottom of the T-shaped slide bar 105, and the other end of the spring 108 is fixedly installed on the inner wall of the No. 1 pillar insulator 2. By setting the spring 108, the T-shaped slide bar 105 can be pushed upward and reset. The side wall of the T-shaped slide bar 105 is fixedly installed with a push rod 106, and the push rod 106 is away from the T-shaped slide bar 105. An insulating rod 107 is fixedly installed on one end, and the outer wall of the insulating rod 107 fits with the outer wall of the knife switch 8. When the knife switch 8 and the moving contact 5 are closed, the knife switch 8 will squeeze the insulating rod 107 downward, and then the insulating rod 107 will squeeze the top rod 106 downward. One end of the connecting rod 103 is hinged to the top of the T-shaped sliding bar 105, and the other end of the connecting rod 103 is hinged to the outer wall of the L rod 101. The connecting rod 103 can drive the L rod 101 to rotate through the sliding cooperation of the T-shaped sliding bar 105.

[0026] The rubber protective sleeve 104 is provided with a cleaning mechanism 11 for cleaning the moving contact 5. By providing the cleaning mechanism 11, the surface of the moving contact 5 can be cleaned to prevent impurities from affecting the contact effect between the moving contact 5 and the knife switch 8. The cleaning mechanism 11 includes a rotating shaft 111, a brush 112, and a wind cup 113; the rotating shaft 111 is rotatably connected to the inner wall of the rubber protective sleeve 104, and the rotating shaft 111 passes through the rubber protective sleeve 104. The rotating shaft 111 is made of ceramic material and has good insulation performance. 1 is fixedly mounted with a brush 112, which can be driven to rotate by the rotating shaft 111, and a wind cup 113 is fixedly mounted on the other end of the rotating shaft 111. When there is a strong wind at high altitude, the wind cup 113 is blown by the wind, and then the wind cup 113 can drive the rotating shaft 111 to rotate, and the brush 112 is attached to the outer wall of the moving contact 5. The outer wall of the moving contact 5 can be cleaned by the rotation of the brush 112 to prevent impurities from adhering to the moving contact 5 and affecting the contact effect between the moving contact 5 and the knife switch 8.

[0027] Working principle: When the knife switch 8 rotates toward the No. 1 support insulator 2 and contacts the insulating rod 107, the insulating rod 107 will be squeezed downward. At the same time, the cooperating push rod 106 can drive the T-shaped slide bar 105 to slide downward on the outer wall of the guide rod 102 and compress the spring 108. When the T-shaped slide bar 105 slides downward, it will pull the connecting rod 103, and then the connecting rod 103 will pull the L rod 101, causing the L rod 101 to rotate and drive the rubber protective sleeve 104 to rotate toward the end away from the moving contact 5, so that the rubber protective sleeve 104 is separated from the protection of the moving contact 5, which facilitates the closing of the knife switch 8 and the moving contact 5. After the knife switch 8 is separated, the knife switch 8 will be free from squeezing the insulating rod 107, so that the push rod 106 will be free from squeezing the T-shaped slide bar 105. At this time, the elasticity of the spring 108 cooperates with the guidance of the guide rod 102 to make the T-shaped slide bar 105 slide upward and reset. At this time, the T-shaped slide bar 105 will push the connecting rod 103, so that the connecting rod 103 pushes the L rod 101 upward, so that the L rod 101 rotates and drives the rubber protective cover 104 to move toward the end close to the moving contact 5, and the two groups of rubber protective covers 104 are fitted together. At this time, the moving contact 5 after the switch is separated can be protected by the two groups of rubber protective covers 104 to avoid electric shock accidents.

[0028] When the knife switch 8 is in the open state, the two sets of rubber protective sleeves 104 will protect the moving contact 5. At this time, when there is a strong wind at high altitude, the wind force blows the wind cup 113, and then the wind cup 113 can drive the rotating shaft 111 to rotate, and the rotating shaft 111 drives the brush 112 to rotate. The outer wall of the moving contact 5 can be cleaned by the rotation of the brush 112 to prevent impurities from adhering to the moving contact 5 and affecting the contact effect between the moving contact 5 and the knife switch 8.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A high-voltage disconnector with an insulating protective sleeve, comprising a base (1), a No. 1 support insulator (2) being fixedly mounted on the top of the base (1), a No. 2 support insulator (3) being fixedly mounted on the top of the base (1), an outlet plate (4) being fixedly mounted on the top of the No. 1 support insulator (2), a moving contact (5) being fixedly mounted on the top of the outlet plate (4), an incoming plate (6) being fixedly mounted on the top of the No. 2 support insulator (3), a stationary contact (7) being fixedly mounted on the top of the incoming plate (6), a knife switch (8) being hingedly connected to the outer wall of the stationary contact (7), a fixing buckle (9) being provided on the knife switch (8), and a buckle groove (91) being provided on the moving contact (5) for the fixing buckle (9) to be inserted into, characterized in that: The first pillar insulator (2) is provided with a protection mechanism (10) for protecting the moving contact (5), and the protection mechanism (10) comprises: An L-rod (101), the L-rod (101) being hinged to the outer wall of the outlet connecting plate (4), and a rubber protective sleeve (104) being fixedly mounted on the outer wall of the L-rod (101); A guide rod (102), the guide rod (102) is fixedly mounted on the inner wall of the first pillar insulator (2), the outer wall of the guide rod (102) is slidably connected with a T-shaped slide rod (105), a top rod (106) is fixedly mounted on the side wall of the T-shaped slide rod (105), an insulating rod (107) is fixedly mounted on one end of the top rod (106) away from the T-shaped slide rod (105), and the outer wall of the insulating rod (107) is in contact with the outer wall of the knife switch (8); A connecting rod (103), one end of which is hinged to the top of the T-shaped sliding rod (105), and the other end of which is hinged to the outer wall of the L-rod (101).

2. A high voltage disconnector with an insulating protective sleeve according to claim 1, characterized in that: The outer wall of the guide rod (102) is sleeved with a spring (108).

3. A high voltage disconnector with an insulating protective sleeve according to claim 2, characterized in that: One end of the spring (108) is fixedly mounted on the bottom of the T-shaped slide bar (105), and the other end of the spring (108) is fixedly mounted on the inner wall of the No. 1 support insulator (2).

4. A high voltage disconnector with an insulating protective sleeve according to claim 1, characterized in that: The rubber protective sleeve (104) is provided with a cleaning mechanism (11) for cleaning the moving contact (5), the cleaning mechanism (11) comprising a rotating shaft (111), the rotating shaft (111) being rotatably connected to the inner wall of the rubber protective sleeve (104), and the rotating shaft (111) passing through the rubber protective sleeve (104).

5. A high voltage disconnector with an insulating protective sleeve according to claim 4, characterized in that: A brush (112) is fixedly mounted on one end of the rotating shaft (111), and a wind cup (113) is fixedly mounted on the other end of the rotating shaft (111).

6. A high voltage disconnector with an insulating protective sleeve according to claim 5, characterized in that: The brush (112) is attached to the outer wall of the moving contact (5).

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