Switch closing device
By designing a switch closing device that dynamically matches the mounting plate and arc-shaped hole to adjust the position of the cylindrical pin in the high-voltage switch, the compression spring and soft connections reduce manual force, and the self-locking design reduces the stress in the closing state. It solves the problem of mechanical parts fatigue and extends the service life of the equipment.
Patent Information
- Application Number
- CN202420907276.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The switch closing devices in existing high-voltage switches are prone to fatigue and wear due to the long-term pressure of switching closing, and their service life is not long.
A switch closing device including a dynamic mating mounting plate, a spindle, a crank arm, a cylindrical pin, an insulated side plate, a spring bracket, a stretch cap, a stud and an arc extinguishing chamber are designed, and the traction and pushing of the arc hole are traction and pulling. Adjust the position of the cylindrical pin, use the compression spring and soft connection to reduce manual force application, and combine the self-locking design to reduce force in the closing state.
It extends the service life of the switch closing mechanism, reduces the huge pressure in the closing state, and improves the stability and reliability of the equipment.
Smart Images
Figure CN222190567U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-voltage switches, in particular to a switch closing device. Background Art
[0002] High-voltage switchgear refers to electrical appliances with a rated voltage of 1kV and above, which are mainly used for opening and closing conductive circuits. It is a general term for high-voltage switches and their corresponding control, measurement, protection, adjustment devices, as well as accessories, casings, support components and their electrical and mechanical connections. It is an important control device for connecting and disconnecting circuits, removing and isolating faults, and the switch closing device is an isolating switch in the high-voltage switch circuit, which is used to open or close the circuit, that is, the switch controller that controls whether the circuit is energized or not.
[0003] For example, the public document with application number: 202021910022.9 discloses a high-voltage switch. The utility model has high protection against bolts, can reduce the erosion of bolts due to environmental problems such as rain, and the protective block is easy to control, so it is convenient to disassemble the bolts, and thus the high-voltage switch body is highly safe when installed and fixed outdoors. However, the switch closing device in the high-voltage switch adopts the existing conventional switch closing mechanism, and the conventional mechanism directly uses mechanical parts for pushing and pressing when the switch is closed. The components are severely fatigued and worn due to long-term exposure to the switch closing pressure, and the service life is not high.
[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a switch closing device is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a switch closing device to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a switch closing device, including a dynamic-fit mounting plate, a main shaft is fixedly arranged in the middle of the upper surface of the dynamic-fit mounting plate, a crank arm is rotatably arranged on the surface of the main shaft, a cylindrical pin is slidably arranged in the arc-shaped groove on the surface of the crank arm, and insulating side plates are fixedly installed on the left and right sides of the surface of the dynamic-fit mounting plate.
[0007] Preferably, compression spring brackets are fixedly installed on the upper side of the surface of the insulating side plate on the opposite side, and a stretching cap is fixedly installed through the lower end of the cylindrical pin.
[0008] Preferably, a compression spring gasket is fixedly arranged below the surface of the stretching cap, and a compression spring member is installed above the surface of the compression spring gasket.
[0009] Preferably, a pull rod is fixedly provided at the bottom end of the stretch cap, and a stud is installed at the lower end of the pull rod.
[0010] Preferably, both left and right ends of the stud are fixedly provided with flexible connections, and the opposite ends of the flexible connections are fixedly connected to the insulating side plates.
[0011] Preferably, an arc extinguishing chamber is fixedly provided at the lower end of the stud, a support plate is fixedly provided above the surface of the arc extinguishing chamber, and the left and right ends of the support plate are fixedly connected to the insulating side plates on both sides.
[0012] Preferably, a contact support plate is fixedly installed below the surface of the insulating side plate, a static contact is penetrated through the right side of the surface of the contact support plate, and the upper end of the static contact is fixedly connected to the arc extinguishing chamber.
[0013] Preferably, a small gasket is fixedly arranged above the surface of the stretching cap, a large gasket is sleeved on the surface of the small gasket, and the stretching cap, the large gasket and the small gasket are all penetrated by a cylindrical pin.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. The utility model drives the main shaft to rotate clockwise through the mechanism, the radius of the arc hole of the crank arm becomes smaller, and the stretching cap, the pull rod, the stud, and the arc extinguishing chamber are pulled to open the switch. The mechanism drives the main shaft to rotate counterclockwise, the radius of the arc hole of the crank arm becomes larger, and the stretching cap, the pull rod, the stud, and the arc extinguishing chamber are pushed to close the switch. In the closed state, the radius of the arc hole of the crank arm is slightly reduced, which can play a self-locking role and reduce the force on the mechanism in the closed state. Its unique self-locking design reduces the force on the mechanism in the closed state, so that the mechanism does not need to bear the huge closing pressure all the time, thereby increasing the service life of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of the switch of the utility model in a closed state;
[0017] Figure 2 This is a schematic diagram of the structure of the switch of the utility model in the open state;
[0018] Figure 3 This is a schematic diagram of the partial installation structure of the cylindrical pin and the stretch cap of the utility model;
[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the partial installation of the cylindrical pin of the stretch cap of the utility model.
[0020] In the figure: 1. dynamic fit mounting plate; 2. main shaft; 3. crank arm; 4. cylindrical pin; 5. compression spring bracket; 6. stretching cap; 7. compression spring member; 8. compression spring gasket; 9. pull rod; 10. stud; 11. flexible connection; 12. arc extinguishing chamber; 13. support plate; 14. insulating side plate; 15. contact bracket plate; 16. static contact; 17. large gasket; 18. small gasket. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] like Figure 1-Figure 4 As shown, a switch closing device includes a movable fitting mounting plate 1, a main shaft 2 is fixedly arranged in the middle of the upper surface of the movable fitting mounting plate 1, a crank arm 3 is rotatably arranged on the surface of the main shaft 2, a cylindrical pin 4 is slidably arranged in the arc-shaped groove on the surface of the crank arm 3, and insulating side plates 14 are fixedly installed on both sides of the left and right sides of the surface of the movable fitting mounting plate 1.
[0023] By adopting the above technical solution, the arc hole of the crank arm 3 passes through the cylindrical pin 4, so that the crank arm 3 is rotated by the main shaft 2, and the position of the cylindrical pin 4 can be adjusted by pulling or pushing the arc hole.
[0024] Furthermore, compression spring brackets 5 are fixedly installed on the upper side of the surface of the insulating side plate 14 on the opposite side, and a stretching cap 6 is fixedly installed through the lower end of the cylindrical pin 4 .
[0025] By adopting the above technical solution, when the cylindrical pin 4 moves following the crank arm 3 , the lower end of the cylindrical pin 4 passes through the portion of the stretching cap 6 , thereby pulling the stretching cap 6 .
[0026] Furthermore, a compression spring gasket 8 is fixedly disposed below the surface of the stretching cap 6 , and a compression spring member 7 is installed above the surface of the compression spring gasket 8 .
[0027] By adopting the above technical solution, the compression spring member 7 provides auxiliary force to the movement of the stretching cap 6 through the compression spring gasket 8, that is, provides auxiliary force to the switch closing operation, reduces manual force, and makes the operation easier.
[0028] Furthermore, a pull rod 9 is fixedly provided at the bottom end of the stretching cap 6 , and a stud 10 is installed at the lower end of the pull rod 9 .
[0029] By adopting the above technical solution, the pull rod 9 moves synchronously with the movement of the stretch cap 6 , and the force between the cylindrical pin 4 and the crank arm 3 is transmitted to the stud 10 .
[0030] Furthermore, both left and right ends of the stud 10 are fixedly provided with flexible connections 11 , and the opposite ends of the flexible connections 11 are fixedly connected to the insulating side plates 14 .
[0031] By adopting the above technical solution, the soft connection 11 can provide auxiliary supporting force and movement rebound ability to the stud 10, thereby further reducing the force that needs to be applied manually.
[0032] Furthermore, an arc extinguishing chamber 12 is fixedly provided at the lower end of the stud 10, a support plate 13 is fixedly provided above the surface of the arc extinguishing chamber 12, the left and right ends of the support plate 13 are fixedly connected to the insulating side plates 14 on both sides, a contact support plate 15 is fixedly installed below the surface of the insulating side plate 14, a static contact 16 is penetrated through the right side of the surface of the contact support plate 15, and the upper end of the static contact 16 is fixedly connected to the arc extinguishing chamber 12.
[0033] By adopting the above technical solution, the arc extinguishing chamber 12 cooperates with the static contact 16 to form a contact surrounding the switch, which limits the arc spatial position and accelerates the arc extinguishing.
[0034] Furthermore, a small gasket 18 is fixedly provided on the surface of the stretching cap 6 , a large gasket 17 is sleeved on the surface of the small gasket 18 , and the stretching cap 6 , the large gasket 17 and the small gasket 18 are all penetrated by the cylindrical pin 4 .
[0035] By adopting the above technical solution, the large gasket 17 and the small gasket 18 are used to protect the stretching cap 6, so that the service life of the stretching cap 6 is extended.
[0036] Working principle: When using the switch closing device, first, install the contact support plate 15, static contact 16, arc extinguishing chamber 12, soft connection 11, stud 10, pull rod 9, compression spring gasket 8, compression spring piece 7, stretching cap 6, and cylindrical pin 4 in sequence. After installation, place it in the middle of two insulating side plates 14. The main shaft 2 passes through a crank arm 3, a compression spring support 5, and a crank arm 3 in sequence, and three groups of each are installed in the middle of two insulating side plates 14. The arc hole of the crank arm 3 passes through the cylindrical pin 4, and the small gasket 18 is put on and the large gasket 17 is locked. The mechanism drives the main shaft 2 to rotate clockwise, the radius of the arc hole of the crank arm 3 becomes smaller, and the stretching cap 6, pull rod 9, stud 10, and arc extinguishing chamber 12 are pulled to open the switch. The mechanism drives the main shaft 2 to rotate counterclockwise, the radius of the arc hole of the crank arm 3 becomes larger, and the stretching cap 6, pull rod 9, stud 10, and arc extinguishing chamber 12 are pushed to close the switch. In the closed state, the radius of the arc hole of the crank arm 3 is slightly reduced, which can play a self-locking role and reduce the stress on the mechanism in the closed state. This is the working principle of the switch closing device.
Claims
1. A switch closing device, comprising a dynamic fit mounting plate (1), It is characterized in that A main shaft (2) is fixedly arranged in the middle of the upper part of the surface of the movable fitting installation plate (1), a crank arm (3) is rotatably arranged on the surface of the main shaft (2), a cylindrical pin (4) is slidably arranged in an arc-shaped groove on the surface of the crank arm (3), and insulating side plates (14) are fixedly arranged on both left and right sides of the surface of the movable fitting installation plate (1).
2. A switch closing device according to claim 1, It is characterized in that A compression spring bracket (5) is fixedly installed on the upper side of the surface of the insulating side plate (14) on one side opposite to the other, and a stretching cap (6) is fixedly installed through the lower end of the cylindrical pin (4).
3. A switch closing device according to claim 2, It is characterized in that A compression spring gasket (8) is fixedly arranged below the surface of the stretching cap (6), and a compression spring member (7) is installed above the surface of the compression spring gasket (8).
4. A switch closing device according to claim 2, It is characterized in that A pull rod (9) is fixedly provided at the bottom end of the stretching cap (6), and a stud (10) is installed at the lower end of the pull rod (9).
5. A switch closing device according to claim 4, It is characterized in that Both left and right ends of the stud (10) are fixedly provided with soft connections (11), and the opposite ends of the soft connections (11) are fixedly connected to the insulating side plates (14).
6. A switch closing device according to claim 4, It is characterized in that An arc extinguishing chamber (12) is fixedly arranged at the lower end of the stud (10), a support plate (13) is fixedly arranged above the surface of the arc extinguishing chamber (12), and the left and right ends of the support plate (13) are fixedly connected to insulating side plates (14) on both sides.
7. A switch closing device according to claim 1, It is characterized in that A contact support plate (15) is fixedly mounted below the surface of the insulating side plate (14), a stationary contact (16) is provided through the right side of the surface of the contact support plate (15), and the upper end of the stationary contact (16) is fixedly connected to the arc extinguishing chamber (12).
8. A switch closing device according to claim 2, It is characterized in that A small gasket (18) is fixedly arranged on the surface of the stretching cap (6), a large gasket (17) is sleeved on the surface of the small gasket (18), and the stretching cap (6), the large gasket (17) and the small gasket (18) are all penetrated by a cylindrical pin (4).