A double spring structure for a quick grounding operating mechanism

Abstract

The present invention discloses a dual-spring structure for a rapid grounding operating mechanism, relating to the field of GIS equipment. The structure comprises two parallel fixed plates, one end of which is fixedly connected by a side plate. A fixing bracket is disposed between the other ends of the two fixed plates, one end of which is fixedly connected to the fixed plates by a fixing bolt. Spring upper seats are disposed on both sides of the fixing bracket, one end of which is movably connected to the fixing bracket via a pin, and the other end of which is movably connected to a spring lower seat, with a spring disposed between the spring upper seat and the spring lower seat. By providing spring upper seats on both sides of the fixing bracket, the present invention improves the output force of the mechanism, while ensuring that the crank arm is evenly stressed, preventing damage to the needle roller bearings therein, thereby improving the overall performance of the mechanism to a limited extent and enhancing the mechanical strength of the entire mechanism.

Description

Technical Field

[0001] The present invention relates to the field of GIS equipment, and in particular to a double-spring structure of a rapid grounding operating mechanism. Background Art

[0002] Existing operating mechanisms incorporate two internal buffers (one for closing and one for closing) and a driven crank arm. To achieve high operating power output, the spring output force must be increased (e.g., F2 = 10,000N). Consequently, during operation, the following issues arise: 1. A single buffer fails to meet the user's characteristic curve requirements; 2. When the mechanism is storing energy, the crank arm is subjected to unilateral force, which can easily damage the needle roller bearing within it; and 3. Due to the high operating power, the driven crank arm and buffer experience significant impact forces, impacting the mechanism's service life. Therefore, a dual-spring structure for a quick-grounding operating mechanism is essential to address these challenges. Summary of the Invention

[0003] The object of the present invention is to provide a double-spring structure of a rapid grounding operating mechanism to solve the problems raised in the above background technology.

[0004] The cam is connected to the two ends of the support frame by a fixedly-mounted bolt, and one end of the fixedly-mounted bolt is fixed to the support frame by a fixing bolt.

[0005] Preferably, a worm gear is provided between the two crank arms, and the worm gear is sleeved on the outer side of the middle portion of the output shaft.

[0006] Preferably, the other end of the fixing bracket is fixedly connected to a motor mounting plate, one end of the motor mounting plate is fixedly connected to the inner wall of the fixing plate, and a motor is fixedly mounted on one side of the motor mounting plate.

[0007] Preferably, the output end of the motor is fixedly connected to a motor gear via a transmission shaft, and the motor gear is located on the other side of the motor mounting plate.

[0008] Preferably, a worm is fittedly connected to the bottom end of the worm wheel, one end of the worm is movably connected to the middle of the side panel, the other end of the worm is movably connected to the other side wall of the motor mounting plate, and a transmission gear is fixedly connected to the outside of the other end of the worm, and the transmission gear is meshed with the motor gear.

[0009] Preferably, the other end of the spring lower seat is movably connected to the crank arm through a driven pin shaft, the driven crank arm is configured to be a V-shape with a large opening angle, and both ends of the driven crank arm correspond to the oil buffer.

[0010] Preferably, the lower end of the worm gear close to the side plate is fixedly connected to a top block, a limiting rod is provided on one side of the top block, and the end of the limiting rod away from the top block is connected to a limiting device on another fixed plate.

[0011] Preferably, two parallel auxiliary switches are provided in the middle of the other fixed plate, and one end of the two auxiliary switches is connected to the limiting device on the other fixed plate.

[0012] Preferably, a magnetic blow switch and an interlocking block are provided in the middle portion of the outer side of the side panel, and the magnetic blow switch is located above the interlocking block.

[0013] The technical effects and advantages of the present invention are as follows:

[0014] 1. The present invention provides spring seats on both sides of the fixed frame. The springs on the two spring seats increase the output force of the mechanism and make the crank arm evenly stressed. This prevents the needle roller bearing inside from being easily damaged, thereby improving the overall performance of the mechanism to a limited extent and enhancing the mechanical strength of the entire mechanism.

[0015] 2. The present invention provides four oil buffers on the side panels. The four oil buffer plates cooperate with the two driven crank arms to play a buffering role, reducing the impact force on the mechanism, achieving the effect of buffering and braking, and avoiding damage to the mechanism. At the same time, the oil buffers can fine-tune the output angle of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic top view of the overall structure of the present invention.

[0017] Figure 2 It is a side view schematic diagram of the overall structure of the present invention.

[0018] Figure 3 It is a bottom view schematic diagram of the overall structure of the present invention.

[0019] Figure 4 Schematic diagram of the mechanism of the present invention in the closed state.

[0020] Figure 5 This is a schematic diagram of the mechanism of the present invention in the open state.

[0021] In the figure: 1. Fixed plate; 2. Side plate; 3. Fixed bracket; 4. Fixing bolt; 5. Spring upper seat; 6. Spring lower seat; 7. Spring; 8. Output shaft; 9. Driven crank arm; 10. Crank arm; 11. Worm gear; 12. Oil buffer; 13. Motor mounting plate; 14. Motor; 15. Motor gear; 16. Worm; 17. Transmission gear; 18. Driven pin shaft; 19. Ejector block; 20. Limit rod; 21. Auxiliary switch; 22. Magnetic blow switch; 23. Interlocking block. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0023] The present invention provides Figure 1-5 A double-spring structure of a quick grounding operating mechanism is shown, comprising two parallel fixed plates 1, one end of the two fixed plates 1 being fixedly connected via a side plate 2, a fixing frame 3 being provided between the other ends of the two fixed plates 1, one end of the fixing frame 3 being fixedly connected to the fixed plates 1 via a fixing bolt 4, a spring upper seat 5 being provided on both sides of the fixing frame 3, one end of the spring upper seat 5 being movably connected to the fixing frame 3 via a pin, the other end of the spring upper seat 5 being movably connected to a spring lower seat 6, a spring 7 being provided between the spring upper seat 5 and the spring lower seat 6, the provision of the two springs 7 improving the output force of the mechanism, while enabling the crank arm 10 to be evenly stressed, preventing the needle roller bearing therein from being easily damaged, thereby improving the overall performance of the mechanism to a limited extent and enhancing the mechanical strength of the entire mechanism;

[0024] Specifically, an output shaft 8 is provided at one end of the two fixed plates 1, and both ends of the output shaft 8 are movably connected to the fixed plate 1. A driven crank arm 9 is sleeved on the outer side of both ends of the output shaft 8. The driven crank arm 9 is located on the inner side of the fixed plate 1. A crank arm 10 is provided on the inner side of the driven crank arm 9. The crank arm 10 is sleeved on the outer side of the output shaft 8. A worm gear 11 is provided between the two crank arms 10, and the worm gear 11 is sleeved on the outer side of the middle part of the output shaft 8. Oil buffers 12 are fixedly connected to the four corners of the side plate 2. The oil buffers 12 correspond to the driven crank arm 9. The oil buffers 12 play a buffering role and can also fine-tune the output angle of the mechanism.

[0025] More specifically, the other end of the fixing frame 3 is fixedly connected to the motor mounting plate 13, one end of the motor mounting plate 13 is fixedly connected to the inner wall of the fixing plate 1, and a motor 14 is fixedly installed on one side of the motor mounting plate 13. The output end of the motor 14 is fixedly connected to the motor gear 15 through the transmission shaft. The motor gear 15 is located on the other side of the motor mounting plate 13. The bottom end of the worm gear 11 is fitted with a worm 16. One end of the worm 16 is movably connected to the middle part of the side plate 2, and the other end of the worm 16 is movably connected to the other side wall of the motor mounting plate 13. The outside of the other end of the worm 16 is fixedly connected to a transmission gear 17, and the transmission gear 17 is connected to the The motor gear 15 is meshed and connected, and the motor 14 drives the transmission gear 17 to rotate through the motor gear 15, and the transmission gear 17 drives the worm 16 to rotate, and the worm 16 drives the worm wheel 11 to rotate. The other end of the spring lower seat 6 is movably connected to the crank arm 10 through the driven pin 18. The worm wheel 11 drives the spring upper seat 5 and the spring lower seat 6 to contract through the crank arm 10. The driven crank arm 9 is set to a V-shape with a large opening angle, and both ends of the driven crank arm 9 correspond to the oil buffer 12. The driven crank arm 9 and the oil buffer 12 cooperate to play a buffering role, reduce the impact force on the mechanism, achieve the effect of buffering braking, and avoid damage to the mechanism;

[0026] A top block 19 is fixedly connected to the lower end of the worm gear 11 on the side close to the side panel 2, and a limit rod 20 is provided on one side of the top block 19. The end of the limit rod 20 away from the top block 19 is connected to the limit device on the other fixed plate 1. When the worm gear 11 rotates, it drives the top block 19 to push the limit rod 20, so as to open the limit. Two parallel auxiliary switches 21 are provided in the middle of the other fixed plate 1. One end of the two auxiliary switches 21 is connected to the limit device on the other fixed plate 1. A magnetic blow switch 22 and an interlocking block 23 are provided in the middle of the outer side of the side panel 2. The magnetic blow switch 22 is located above the interlocking block 23, and the interlocking block 23 can control the opening and closing of the contacts of the magnetic blow switch 22.

[0027] Working principle of the present invention:

[0028] When the device is in the closed position (such as Figure 4 ), press the opening button, at this time the motor 14 drives the transmission gear 17 to rotate through the motor gear 15, the transmission gear 17 drives the worm 16 to rotate, the worm 16 drives the worm wheel 11 to rotate, and when the worm wheel 11 rotates, it drives the spring upper seat 5 and the spring lower seat 6 to contract through the crank arm 10. At this time, the two springs 7 store energy at the same time. When the spring lower seat 6 is about to pass the center, the top block 19 on the worm wheel 11 pushes the limit rod 20, causing the limit device to open. At this time, the stored energy of the two springs 7 is released, and the crank arm 10 is driven to rotate through the spring lower seat 6, thereby rotating the output shaft 8, switching the auxiliary switch 21, and the motor 14 is powered off and stops moving, and the mechanism completes the opening movement;

[0029] When the device is in the open position (such as Figure 5 ), press the closing button, at this time the motor 14 drives the transmission gear 17 to rotate through the motor gear 15, the transmission gear 17 drives the worm 16 to rotate, the worm 16 drives the worm wheel 11 to rotate, and when the worm wheel 11 rotates, it drives the spring upper seat 5 and the spring lower seat 6 to contract. At this time, the two springs 7 store energy at the same time. When the spring lower seat 6 is about to pass the center, the top block 19 on the worm wheel 11 pushes the limit rod 20, causing the limit device to open. At this time, the stored energy of the two springs 7 is released, and the crank arm 10 is driven to rotate through the spring lower seat 6, thereby rotating the output shaft 8, switching the auxiliary switch 21, and the motor 14 is powered off and stops moving, and the mechanism completes the closing movement;

[0030] When the mechanism completes the opening or closing movement, the end of the driven crank arm 9 contacts the oil buffer 12. The oil buffer 12 plays a buffering role, achieving the effect of buffering braking to avoid damage to the mechanism. At the same time, the oil buffer 12 can fine-tune the output angle of the mechanism.

[0031] Manual and electric switching: Pull the handle of the interlock block 23 upwards. At this time, the normally closed contacts of the magnetic blow switch 22 are disconnected, and manual operation is possible but not electric operation. After manual operation is completed, pull the interlock block 23 downwards to reset the interlock block 23. The contacts of the magnetic blow switch 22 are closed, and electric operation is possible. The interlock structure is simple, easy to use, safe and reliable.

[0032] Manual operation: Open the operating door and pull the interlock block 23 upwards. The electric power supply will be automatically disconnected. At this time, insert the special hexagonal operating rod to perform manual operation. Shake the energy storage handle clockwise (counterclockwise) to make the worm 16 rotate through the worm gear 11, and store energy in the two springs 7 until the top block 19 on the worm gear 11 pushes the limit rod 20, opening the limit device, so that the two springs 7 release the stored energy, driving the output shaft 8 to rotate, and completing the opening (closing) action.

[0033] Finally, it should be noted that the above 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 make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double spring structure of a quick grounding operating mechanism, comprising two parallel fixed plates (1), characterized in that: One end of the two fixing plates (1) is fixedly connected via a side plate (2), a fixing frame (3) is provided between the other ends of the two fixing plates (1), one end of the fixing frame (3) is fixedly connected to the fixing plate (1) via a fixing bolt (4), a spring upper seat (5) is provided on both sides of the fixing frame (3), one end of the spring upper seat (5) is movably connected to the fixing frame (3) via a pin shaft, the other end of the spring upper seat (5) is movably connected to a spring lower seat (6), and a spring (7) is provided between the spring upper seat (5) and the spring lower seat (6). , one end of the two fixed plates (1) is provided with an output shaft (8), both ends of the output shaft (8) are movably connected to the fixed plate (1), the outer sides of both ends of the output shaft (8) are sleeved with driven crank arms (9), the driven crank arms (9) are located on the inner side of the fixed plate (1), the inner side of the driven crank arms (9) is provided with crank arms (10), the crank arms (10) are sleeved on the outer sides of the output shaft (8), the four corners of the side plate (2) are fixedly connected with oil buffers (12), the oil buffers (12) correspond to the driven crank arms (9); A worm gear (11) is provided between the two crank arms (10), and the worm gear (11) is sleeved on the outer side of the middle portion of the output shaft (8); The other end of the fixing frame (3) is fixedly connected to a motor mounting plate (13), one end of the motor mounting plate (13) is fixedly connected to the inner wall of the fixing plate (1), and a motor (14) is fixedly mounted on one side of the motor mounting plate (13); The output end of the motor (14) is fixedly connected to a motor gear (15) via a transmission shaft, and the motor gear (15) is located on the other side of the motor mounting plate (13); The bottom end of the worm wheel (11) is fitted with a worm (16), one end of the worm (16) is movably connected to the middle of the side plate (2), the other end of the worm (16) is movably connected to the other side wall of the motor mounting plate (13), and the outer side of the other end of the worm (16) is fixedly connected to a transmission gear (17), and the transmission gear (17) is meshed with the motor gear (15); The other end of the spring lower seat (6) is movably connected to the crank arm (10) via a driven pin shaft (18), the driven crank arm (9) is configured to be V-shaped with a large opening angle, and both ends of the driven crank arm (9) correspond to the oil buffer (12); The lower end of the worm wheel (11) on the side close to the side plate (2) is fixedly connected to a top block (19), a limiting rod (20) is provided on one side of the top block (19), and the end of the limiting rod (20) away from the top block (19) is connected to a limiting device on the other fixed plate (1); Two parallel auxiliary switches (21) are provided in the middle of the other fixed plate (1), and one end of each of the two auxiliary switches (21) is connected to a limit device on the other fixed plate (1); A magnetic blow switch (22) and an interlocking block (23) are provided in the middle portion of the outer side of the side plate (2), and the magnetic blow switch (22) is located above the interlocking block (23).

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