Linkage operated three position load break switchgear

Abstract

The utility model relates to load switch device technical field, and disclose a kind of three-position load switch device of connecting rod drive, including three-position switch, the both sides of three-position switch are equipped with clamping plate.The three-position load switch device of connecting rod drive, main operating shaft is linked to second operating shaft through first connecting rod, and second operating shaft is connected to third operating shaft through linkage rod, main operating shaft and third operating shaft are connected by second connecting rod again, and three form closed linkage, however, locking assembly is also installed on the top end outside of main operating shaft, the pull rod inside locking assembly is pulled, so that the end transmission rod moves with linkage locking rod, moves position is limited by slide way limiting plate, so that the top end of linkage locking rod can be clamped in the inside of locking buckle, realize the power of operating mechanism accurately transmission to switch movable contact, so that switch switches between different stations, increase the operation reliability and stability of three-position load switch device.

Description

Technical Field

[0001] This utility model relates to the technical field of load switch devices, and in particular to a three-position load switch device with linkage drive. Background Technology

[0002] In current power systems, linkage-driven three-position load switchgear is widely used in cabinet installation scenarios because it can achieve switching between closing, opening, and grounding positions and has reliable transmission. However, traditional switchgear...

[0003] A linkage rod is installed on the right end of the switch to accurately transmit the power of the operating mechanism to the moving contact of the switch, enabling the switch to switch between different positions. This increases the operational reliability and stability of the three-position load switch device. However, when installing it inside the cabinet, the operation is relatively cumbersome, requiring more manpower and time. It is also prone to problems such as insecure installation, which reduces the ease and stability of installation. Furthermore, the switch device's wiring terminals are exposed to the outside for a long time, which can easily accumulate dust and make it difficult to dissipate the generated heat. This not only affects the reliability of the switch contact and increases the risk of failure, but also shortens the service life of the equipment. Utility Model Content

[0004] (a) Technical problems to be solved The purpose of this utility model is to provide a three-position load switch device with linkage drive, which solves the problems mentioned in the background art, such as installing a linkage rod on the right end of the switch to accurately transmit the power of the operating mechanism to the moving contact of the switch, realizing the switching between different positions of the switch, increasing the operational reliability and stability of the three-position load switch device, and the problems that are relatively cumbersome to operate when installed inside the cabinet, requiring more manpower and time, and are prone to insecure installation, reducing the convenience and stability of installation. In addition, the wiring terminals of the switch device are exposed to the outside for a long time, which easily accumulates dust, making it difficult to dissipate the generated heat, which not only affects the reliability of the switch contact and increases the risk of failure, but also shortens the service life of the equipment.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a three-position load switch device with linkage drive, comprising a three-position switch, with clamping plates installed on both sides of the three-position switch, a linkage assembly installed on the right end of the three-position switch, a main operating shaft installed in the middle of the linkage assembly, a linkage mechanism installed outside the main operating shaft, a mounting mechanism fixedly connected to the outside of the clamping plates, a terminal provided at the top of the three-position switch, and a dustproof and heat dissipation component installed outside the terminal. The linkage mechanism includes a first linkage installed outside the main operating shaft, a second operating shaft rotatably connected to the end of the first linkage, a linkage rod rotatably connected to the outside of the second operating shaft, a third operating shaft installed at the end of the linkage rod, a locking assembly fixedly connected to the top of the main operating shaft, and a mounting plate fixedly connected to the outside of the clamping plates. The mounting mechanism includes a mounting plate fixedly connected to the outside of the clamping plates, a horizontal plate rotatably connected to the top of the mounting plate, a fixing plate rotatably connected to the top of the horizontal plate, and a fixing bolt internally threaded onto the fixing plate.

[0006] As a further embodiment of this utility model, the locking assembly includes a locking buckle fixedly connected to the outside of the top end of the main operating shaft. A linkage locking rod is engaged on one side of the locking buckle. A slide rail limiting plate is slidably connected to the bottom surface of the locking rod. A transmission rod is rotatably connected to the end of the linkage locking rod. A pull rod is rotatably connected to the end of the transmission rod. The locking assembly, through the cooperation of the locking buckle, the linkage locking rod, the slide rail limiting plate, the transmission rod, and the pull rod, realizes the locking positioning and transmission linkage of the main operating shaft.

[0007] As a further embodiment of this utility model, a dustproof net is fixedly connected to the top of the dust cover, and an anti-wear rubber ring is provided inside the inlet. The dustproof net prevents dust from entering the terminal, and the anti-wear rubber ring reduces friction damage between the cable and the inlet. Together, they ensure the cleanliness of the terminal and the integrity of the cable, thus contributing to the stable operation of the switching device.

[0008] As a further embodiment of this utility model, the card plate is internally threaded with mounting bolts, and the outer side of the mounting bolts penetrates the interior of both sides of the three-position switch. The mounting bolts ensure that the switch is firmly fixed inside the cabinet, thus guaranteeing installation stability and equipment operation reliability.

[0009] As a further embodiment of this utility model, a first rotating component is fixedly connected to the top of the mounting plate, and a second rotating component is fixedly connected to the top of the horizontal plate. The combination of the first and second rotating components provides a rotatable connection between the mounting plate and the horizontal plate, adapts to the adjustment of the cabinet installation angle, and improves the assembly flexibility.

[0010] As a further embodiment of this utility model, the bottom end of the fixing plate is fixedly connected with three first through rings, and the inside of the first through rings is engaged with a first hook. The setting of connecting the first through rings through the fixing plate achieves the function of quickly hanging and positioning the fixing plate, improving the convenience of installation and connection stability.

[0011] As a further embodiment of this utility model, a reinforcing chain is fixedly connected to the bottom surface of the first hook, and a second hook is fixedly connected to the bottom of the reinforcing chain. The setting of connecting the first hook and the second hook through the reinforcing chain enhances the load-bearing capacity and stability of the hanging structure, prevents it from falling off, and ensures the reliability of installation.

[0012] As a further embodiment of this utility model, the second hook is internally engaged with a second through ring, and the inside of the second through ring is provided with a rubber pad. Through the engagement and cooperation between the second through ring and the second hook, a stable connection is achieved, the rubber pad buffers and reduces shock, protects the components, and improves the connection sealing and durability.

[0013] As a further embodiment of this utility model, the dustproof and heat dissipation component includes a connecting plate installed outside the terminal block. A dust cover is fixedly connected to the end of the connecting plate. The connecting plate serves to connect and fix the terminal block to the dust cover, and the dust cover provides dust protection for the component.

[0014] As a further embodiment of this utility model, four cooling fans are installed inside the top of the dust cover, and an inlet is fixedly connected to the middle of the top of the dust cover. The cooling fans serve to dissipate heat from the components and provide access for the wiring.

[0015] (III) Beneficial Effects This utility model provides a three-position load switch device with linkage drive, which has the following advantages: 1. This three-position load switch device with linkage drive, through the setting of the linkage mechanism, has an operable linkage assembly installed on the left end of the three-position switch when the switch needs to be operated and controlled. The main operating shaft is installed inside the linkage assembly. The main operating shaft is linked to the second operating shaft through the first linkage, and the second operating shaft is connected to the third operating shaft through the linkage rod. The main operating shaft and the third operating shaft are connected by the second linkage, forming a closed linkage. However, a locking assembly is also installed on the outside of the top of the main operating shaft. The pull rod inside the locking assembly is pulled, causing the transmission rod at the end to move with the linkage locking rod. The movement position is limited by the slide rail limit plate on the bottom surface of the linkage locking rod, so that the top of the linkage locking rod can be locked inside the locking buckle for limit locking. This realizes the precise transmission of the power of the operating mechanism to the moving contact of the switch, enabling the switch to switch between different positions and increasing the operational reliability and stability of the three-position load switch device.

[0016] This three-position load switch device with linkage drive, through the setting of the installation mechanism, has a clamp plate installed on both sides of the three-position switch by threaded bolts when the device is installed and put into operation inside the cabinet. The upper and lower mounting plates on the outside of the clamp plate fit against the inner wall of the outer cabinet. The horizontal plate is rotated so that it can pass through the cabinet wall of the outer cabinet to the other side. Then the fixing plate at the top of the horizontal plate is rotated so that the upper and lower fixing plates are on the same vertical plane. The fixing bolt is inserted into the cabinet wall of the outer cabinet through the fixing plate and then screwed over the mounting plate to fix it to the cabinet wall of the outer cabinet. Since the first and second through rings are installed on the opposite sides of the two fixing plates, the first and second hooks are used to suspend and connect them. Then the reinforcing chain between the two hooks pulls in the middle to improve the installation firmness. This realizes the function of facilitating installation inside the cabinet and facilitating the operation of the device. It avoids the lack of installation structure, which leads to cumbersome operation during installation, requires more manpower and time, and is prone to insecure installation, reducing the convenience and stability of installation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the linkage mechanism of this utility model; Figure 3 This is a schematic diagram of the installation mechanism structure of this utility model; Figure 4 This is a schematic diagram of the dustproof and heat dissipation component of this utility model; Figure 5 This is a schematic diagram of the connecting rod assembly structure of the device of this utility model.

[0018] In the diagram: 1. Three-position switch; 2. Card plate; 3. Linkage assembly; 4. Main operating shaft; 5. Linkage mechanism; 501. First link; 502. Second operating shaft; 503. Linkage rod; 504. Third operating shaft; 505. Locking assembly; 506. Second link; 6. Dustproof net; 7. Anti-wear rubber ring; 8. Mounting bolt; 9. First rotating component; 10. Second rotating component; 11. First through-ring; 12. First hook; 13. Addition... 14. Second hook; 15. Second loop; 16. Mounting mechanism; 1601. Mounting plate; 1602. Horizontal plate; 1603. Fixing plate; 1604. Fixing bolt; 17. Terminal; 18. Dustproof and heat dissipation components; 19. Locking buckle; 20. Linkage locking rod; 21. Slide rail limit plate; 22. Transmission rod; 23. Pull rod; 24. Connecting plate; 25. Dust cover; 26. Cooling fan; 27. Cable inlet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] Example 1 Please see Figures 1 to 4This utility model provides a technical solution: a three-position load switch device with linkage drive, including a three-position switch 1, with clamping plates 2 installed on both sides of the three-position switch 1, and mounting bolts 8 threadedly connected to the inside of the clamping plates 2. The mounting bolts 8 penetrate through the inside of both sides of the three-position switch 1. The mounting bolts 8 are used to firmly fix the switch inside the cabinet, ensuring installation stability and equipment operation reliability. A linkage assembly 3 is installed at the right end of the three-position switch 1, a main operating shaft 4 is installed in the middle of the linkage assembly 3, a linkage mechanism 5 is installed on the outside of the main operating shaft 4, and an installation mechanism 16 is fixedly connected to the outside of the clamping plates 2. A top of the three-position switch 1 is provided with... Terminal 17 has a dustproof and heat dissipation component 18 installed on its exterior. The dustproof and heat dissipation component 18 includes a connecting plate 24 installed on the exterior of terminal 17. A dust cover 25 is fixedly connected to the end of the connecting plate 24. The linkage mechanism 5 includes a first connecting rod 501 installed on the exterior of the main operating shaft 4. A second operating shaft 502 is rotatably connected to the end of the first connecting rod 501. A linkage rod 503 is rotatably connected to the exterior of the second operating shaft 502. A third operating shaft 504 is installed at the end of the linkage rod 503. A locking assembly 505 is fixedly connected to the exterior of the top end of the main operating shaft 4. The locking assembly 505 includes a locking buckle 19 fixedly connected to the exterior of the top end of the main operating shaft 4. A linkage locking rod 20 is snapped onto one side of the main operating shaft 9. A slide rail limiting plate 21 is slidably connected to the bottom surface of the linkage locking rod 20. A transmission rod 22 is rotatably connected to the end of the linkage locking rod 20. A pull rod 23 is rotatably connected to the end of the transmission rod 22. The locking assembly 505 achieves locking positioning and transmission linkage of the main operating shaft 4 through the cooperation of the locking buckle 19, the linkage locking rod 20, the slide rail limiting plate 21, the transmission rod 22, and the pull rod 23. The mounting mechanism 16 includes a mounting plate 1601 fixedly connected to the outside of the clamping plate 2. A first rotating component 9 is fixedly connected to the top of the mounting plate 1601, and a second rotating component 10 is fixedly connected to the top of the horizontal plate 1602. The first rotating component 9 and the second rotating component 10 are connected through the first rotating component 9 and the second rotating component 10. The coordinated design provides a rotatable connection between the mounting plate 1601 and the horizontal plate 1602, adapting to the cabinet installation angle adjustment and improving assembly flexibility. The top of the mounting plate 1601 is rotatably connected to the horizontal plate 1602, and the top of the horizontal plate 1602 is rotatably connected to the fixing plate 1603. The bottom of the fixing plate 1603 is fixedly connected to three first through rings 11, and the inside of the first through rings 11 is engaged with a first hook 12. The fixing plate 1603 connects to the first through rings 11, which enables the fixing plate 1603 to be quickly hung and positioned, improving the ease of installation and connection stability. The fixing plate 1603 is internally threaded with a fixing bolt 1604. Furthermore, a reinforcing chain 13 is fixedly connected to the bottom of the first hook 12, and a second hook 14 is fixedly connected to the bottom of the reinforcing chain 13. The setting of connecting the first hook 12 and the second hook 14 through the reinforcing chain 13 enhances the load-bearing capacity and stability of the hanging structure, prevents it from falling off, and ensures the reliability of the installation. Furthermore, the second hook 14 is internally engaged with a second through-ring 15, and the inside of the second through-ring 15 is provided with a rubber pad. Through the engagement and cooperation between the second through-ring 15 and the second hook 14, a stable connection is achieved, the rubber pad buffers and reduces shock, protects the components, and improves the connection sealing and durability. Furthermore, four cooling fans 26 are installed inside the top of the dust cover 25, and an inlet 27 is fixedly connected to the middle of the top of the dust cover 25. The cooling fans 26 are used to dissipate heat from the components and provide access for the wiring. Furthermore, a dustproof mesh 6 is fixedly connected to the top of the dust cover 25, and an anti-wear rubber ring 7 is provided inside the cable inlet 27. The dust cover 25 serves to protect the components from dust.

[0021] In this invention, the working steps of the device are as follows: First step: When the control switch needs to be opened and closed, a controllable linkage assembly 3 is installed on the left end of the three-position switch 1. The main operating shaft 4 is installed inside the linkage assembly 3. The main operating shaft 4 is linked to the second operating shaft 502 through the first linkage 501. The second operating shaft 502 is connected to the third operating shaft 504 through the linkage rod 503. The main operating shaft 4 and the third operating shaft 504 are connected by the second linkage 506, forming a closed linkage. However, a locking assembly 505 is also installed on the outside of the top of the main operating shaft 4. The pull rod 23 inside the locking assembly 505 is pulled, so that the transmission rod 22 at the end moves with the linkage locking rod 20. The movement position is limited by the slide limit plate 21 on the bottom surface of the linkage locking rod 20, so that the top of the linkage locking rod 20 can be locked inside the locking buckle 19. The second step: When the device is installed inside the cabinet for operation, the card plate 2 is installed through the threaded bolts on both sides of the three-position switch 1. The mounting plates 1601 on the upper and lower sides of the card plate 2 are attached to the inner wall of the outer cabinet. The horizontal plate 1602 is rotated so that it can pass through the cabinet wall of the outer cabinet and extend to the other side. Then the fixing plate 1603 at the top of the horizontal plate 1602 is rotated so that the upper and lower fixing plates 1603 are on the same vertical plane. The fixing bolt 1604 is passed through the fixing plate 1603 and inserted into the cabinet wall of the outer cabinet. Then the mounting plate 1601 is screwed over to fix it to the cabinet wall of the outer cabinet. Since the first through ring 11 and the second through ring 15 are installed on the opposite side of the two fixing plates 1603, the first hook 12 and the second hook 14 are used to suspend and connect them. Then the reinforcing chain 13 between the two hooks is pulled in the middle to improve the stability of the installation.

[0022] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-position load switch device with linkage drive, comprising a three-position switch (1), characterized in that: The three-position switch (1) is equipped with a clamping plate (2) on both sides, and a linkage assembly (3) is installed on the right end of the three-position switch (1). A main operating shaft (4) is installed in the middle of the linkage assembly (3). A linkage mechanism (5) is installed on the outside of the main operating shaft (4). An installation mechanism (16) is fixedly connected to the outside of the clamping plate (2). A terminal (17) is provided at the top of the three-position switch (1). A dustproof and heat dissipation component (18) is installed on the outside of the terminal (17). The linkage mechanism (5) includes a first link (501) installed outside the main operating shaft (4), a second operating shaft (502) rotatably connected to the end of the first link (501), a linkage rod (503) rotatably connected to the outside of the second operating shaft (502), a third operating shaft (504) installed at the end of the linkage rod (503), a second link (506) connected between the third operating shaft (504) and the main operating shaft (4), and a locking assembly (505) fixedly connected to the top of the main operating shaft (4). The mounting mechanism (16) includes a mounting plate (1601) fixedly connected to the outside of the card plate (2), a horizontal plate (1602) is rotatably connected to the top of the mounting plate (1601), a fixing plate (1603) is rotatably connected to the top of the horizontal plate (1602), and a fixing bolt (1604) is threadedly connected to the inside of the fixing plate (1603).

2. The three-position load switch device with linkage drive according to claim 1, characterized in that: The locking assembly (505) includes a locking buckle (19) fixedly connected to the outside of the top end of the main operating shaft (4). A linkage locking rod (20) is engaged on one side of the locking buckle (19). A slide rail limiting plate (21) is slidably connected to the bottom surface of the locking rod (20). A transmission rod (22) is rotatably connected to the end of the linkage locking rod (20). A pull rod (23) is rotatably connected to the end of the transmission rod (22).

3. A three-position load switch device with linkage drive according to claim 1, characterized in that: The card plate (2) is internally threaded with mounting bolts (8), and the outside of the mounting bolts (8) penetrates the inside of both sides of the three-position switch (1).

4. A three-position load switch device with linkage drive according to claim 1, characterized in that: The top end of the mounting plate (1601) is fixedly connected to a first rotating component (9), and the top end of the horizontal plate (1602) is fixedly connected to a second rotating component (10).

5. A three-position load switch device with linkage drive according to claim 1, characterized in that: The bottom end of the fixing plate (1603) is fixedly connected with three first through rings (11), and the first through rings (11) are fitted with first hooks (12).

6. A three-position load switch device with linkage drive according to claim 5, characterized in that: The bottom surface of the first hook (12) is fixedly connected to a reinforcing chain (13), and the bottom of the reinforcing chain (13) is fixedly connected to a second hook (14).

7. A three-position load switch device with linkage drive according to claim 6, characterized in that: The second hook (14) has a second through-ring (15) inside, and the inside of the second through-ring (15) is provided with a rubber pad.

8. A three-position load switch device with linkage drive according to claim 1, characterized in that: The dustproof and heat dissipation component (18) includes a connecting plate (24) installed outside the terminal (17), and a dust cover (25) is fixedly connected to the end of the connecting plate (24).

9. A three-position load switch device with linkage drive according to claim 8, characterized in that: The dust cover (25) has four cooling fans (26) installed inside its top, and the top center of the dust cover (25) is fixedly connected to an inlet (27).

10. A three-position load switch device with linkage drive according to claim 9, characterized in that: The top of the dust cover (25) is fixedly connected to a dustproof net (6), and the inside of the inlet (27) is provided with an anti-abrasion rubber ring (7).

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