Energy storage spring operating mechanism of dual-power change-over switch
By designing an energy storage spring operating mechanism, the rapid opening and closing of the contacts is achieved using a drive wheel and a buffer assembly. This solves the safety problem of existing power transfer switches caused by slow manual operation, and improves the safety and versatility of the equipment.
Patent Information
- Application Number
- CN202511986142.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-02-13
AI Technical Summary
The contact closing speed of existing power transfer switches depends on manual operation. If the speed is too slow, the contacts may burn out, resulting in insufficient safety and the risk of accidents.
Design an energy storage spring operating mechanism that uses a drive wheel to move a pull rod, compressing the energy storage spring and rapidly releasing energy to achieve rapid opening and closing of the contacts. Combined with a buffer component and viscous damping, the impact is reduced to avoid damage to the mechanism.
It enables rapid opening and closing of contacts, improves the safety of the power transfer switch and the versatility of the mechanism, avoids damage caused by slow human operation, and enhances the safety and stability of the equipment.
Smart Images
Figure CN121528781A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of power switch device, in particular to a kind of energy storage spring operating mechanism of dual power transfer switch. BACKGROUND
[0002] Dual power transfer switch is a kind of terminal appliance widely used, mainly through operating mechanism to control the action of contact system, to connect or cut off normal power supply, standby power supply, to ensure the safety of power system and the continuity of production.
[0003] The existing power transfer switch usually needs staff to move handle to operate transfer switch, so that switch contact is separated or closed, but the closing speed of switch contact is related to the operation speed of staff, once the operation speed is too slow, contact is easily burned, in turn the safety of power transfer switch is insufficient, causes accident. SUMMARY
[0004] In view of the deficiencies of prior art, the present application provides an energy storage spring operating mechanism of dual power transfer switch, which solves the problem of slow manual closing operation speed of existing power transfer switch, contact is easily burned, in turn the safety of power transfer switch is insufficient, causes accident.
[0005] To achieve the above object, the present application is realized by the following technical scheme: an energy storage spring operating mechanism of dual power transfer switch, comprising a cheek plate, the outside of the cheek plate is rotatably connected with a driving wheel, the top of the driving wheel is provided with a top hole, the inside of the lower side of the driving wheel is rotatably connected with a connecting shaft, the outside of the connecting shaft is provided with a pull rod, the outside of the cheek plate is fixedly connected with a first positioning shaft, the outside of the first positioning shaft is provided with an energy storage assembly, the other end of the energy storage assembly is rotatably connected with an output shaft, the outside of the output shaft is rotatably connected with an upper connecting rod, the other end of the upper connecting rod is rotatably connected with a second positioning shaft, one end of the second positioning shaft is fixedly connected to the outside of the cheek plate, and the outside of the output shaft is rotatably connected to the inside of the pull rod.
[0006] Preferably, the energy storage assembly comprises a lower connecting rod, one end of the lower connecting rod is rotatably connected to the outside of the first positioning shaft, and the outside of the lower connecting rod is provided with an energy storage spring piece.
[0007] Preferably, the inside of the pull rod is provided with a first long slot hole, and the outside of the connecting shaft is slidably connected to the inside of the first long slot hole.
[0008] Preferably, the inside of the cheek plate is provided with a fan-shaped slot, and the outside of the output shaft is slidably connected to the inside of the fan-shaped slot.
[0009] Preferably, the outside of the cheek plate is fixedly connected with a motor, the inside of the driving wheel is provided with a special-shaped hole, and the output end of the motor is arranged in the inside of the special-shaped hole.
[0010] Preferably, the outside of the cheek plate is fixedly connected with a shell, the inside of the shell is provided with a buffer assembly, one end of the buffer assembly is fixedly connected with a support plate, and the outside of the support plate is provided with a limiting assembly.
[0011] Preferably, the buffer assembly comprises a first buffer pad, the outside of the first buffer pad is fixedly connected in the inside of the shell, the outside of the first buffer pad is fixedly connected with a buffer elastic piece, the other end of the buffer elastic piece is fixedly connected with a second buffer pad, the inside of the shell is fixedly connected with a viscous damping, and the outside of the support plate is fixedly connected at one end of the viscous damping.
[0012] Preferably, the buffer elastic piece is one of a disc spring, a wave spring and a spiral spring.
[0013] Preferably, the limiting assembly comprises a limiting block, the outside of the limiting block is fixedly connected at the outside of the support plate, the inside of the shell is provided with a limiting groove, and the outside of the limiting block is slidably connected in the inside of the limiting groove.
[0014] Preferably, the outside of the support plate is slidably connected in the inside of the shell.
[0015] Working principle: when the driving wheel drives the pull rod to move, the upper connecting rod and the lower connecting rod move synchronously, so that the energy storage spring is compressed to store energy; when the two are in a straight line, the dead point balance state is reached, at this time, the spring energy is maximized; after the dead point, the spring rapidly releases energy, pushes the output shaft to move rapidly along the cheek plate fan-shaped groove, is not affected by the speed of manual operation, and finally realizes the rapid separation and combination of the contact, so that the safety of the power conversion switch can be improved; The driving wheel top circular hole can be inserted into the handle to realize manual operation, and the special-shaped hole on one side can be connected with a motor and the like electric driving mechanism to realize automatic operation, the two driving modes share the same set of transmission chain, and two sets of driving structures do not need to be designed separately, so that the universality of the mechanism can be improved; After the second buffer pad receives the impact force, the buffer elastic piece is pushed to be elastically deformed, the impact force is preliminarily absorbed and buffered, the first buffer pad cooperates with the buffer elastic piece to further weaken the vibration transmission, the viscous damping slows down the movement speed of the support plate through the internal damping effect, and the rapid action of the mechanism is avoided to generate violent impact, so that the cheek plate can be prevented from being damaged due to external impact.
[0016] The application provides an energy storage spring operating mechanism of a double power conversion switch. 1. The energy storage spring operating mechanism of the dual power transfer switch of the present application can maximize the energy storage of the spring when the driving wheel drives the pull rod to move, and the upper connecting rod and the lower connecting rod move synchronously, and the spring releases energy rapidly after passing the dead point to push the output shaft to move rapidly along the fan-shaped slot of the cheek plate, which is not affected by the speed of manual operation, thereby improving the safety of the power transfer switch.
[0017] 2. The energy storage spring operating mechanism of the dual power transfer switch of the present application can be manually operated by inserting the handle into the top circular hole of the driving wheel, and automatically operated by inserting the motor into the special-shaped hole, without the need to design two sets of driving structures separately, thereby improving the versatility of the mechanism.
[0018] 3. The energy storage spring operating mechanism of the dual power transfer switch of the present application can avoid damage to the mechanism after being subjected to a severe impact by the cooperation of the second buffer pad, the buffer elastic element, the first buffer pad and the viscous damping, thereby avoiding damage to the cheek plate caused by external impact. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a perspective view of the energy storage spring operating mechanism of the dual power transfer switch of the present application. Figure 2 It is a special-shaped hole local structure schematic diagram of the energy storage spring operating mechanism of the dual power transfer switch of the present application. Figure 3 It is a driving wheel local structure schematic diagram of the energy storage spring operating mechanism of the dual power transfer switch of the present application. Figure 4 It is a energy storage spring local structure schematic diagram of the energy storage spring operating mechanism of the dual power transfer switch of the present application. Figure 5 It is a first long slot hole local structure schematic diagram of the energy storage spring operating mechanism of the dual power transfer switch of the present application. Figure 6 It is a fan-shaped slot local structure schematic diagram of the energy storage spring operating mechanism of the dual power transfer switch of the present application. Figure 7 It is a shell local structure schematic diagram of the energy storage spring operating mechanism of the dual power transfer switch of the present application. Figure 8 It is a second buffer pad local structure schematic diagram of the energy storage spring operating mechanism of the dual power transfer switch of the present application.
[0020] Wherein, 1, cheek plate; 2, drive wheel; 3, connecting shaft; 4, pull rod; 5, first positioning shaft; 6, lower connecting rod; 7, energy storage spring component; 8, output shaft; 9, upper connecting rod; 10, second positioning shaft; 11, motor; 12, special-shaped hole; 13, first long slot hole; 14, fan-shaped slot; 15, top hole; 16, shell; 17, first buffer pad; 18, buffer elastic component; 19, second buffer pad; 20, support plate; 21, limiting block; 22, limiting groove; 23, viscous damping. DETAILED DESCRIPTION
[0021] The technical solutions of the present application will be described clearly and completely below with reference to the drawings of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0022] Please refer to the drawings of the present application Figure 1 and the drawings of the present application Figure 3 , the energy storage spring operating mechanism of the dual power transfer switch provided by the embodiments of the present application comprises a cheek plate 1, the cheek plate 1 is rotationally connected with a drive wheel 2 outside, the top of the drive wheel 2 is provided with a top hole 15, the inside of the drive wheel 2 is rotationally connected with a connecting shaft 3, the outside of the connecting shaft 3 is provided with a pull rod 4, the outside of the cheek plate 1 is fixedly connected with a first positioning shaft 5, the outside of the first positioning shaft 5 is provided with an energy storage assembly, the other end of the energy storage assembly is rotationally connected with an output shaft 8 inside, the outside of the output shaft 8 is rotationally connected with an upper connecting rod 9, the other end of the upper connecting rod 9 is rotationally connected with a second positioning shaft 10, one end of the second positioning shaft 10 is fixedly connected to the outside of the cheek plate 1, and the outside of the output shaft 8 is rotationally connected to the inside of the pull rod 4.
[0023] Specifically, the cheek plate 1 provides a mounting support structure for the entire operating mechanism, the drive wheel 2 can rotate around the cheek plate 1, the top hole 15 is used for inserting a handle to realize manual driving, the connecting shaft 3 plays a role in transmitting power of the drive wheel 2 to the pull rod 4, the first positioning shaft 5 provides a mounting and positioning point for the energy storage assembly, the energy storage assembly is used for storing and releasing power, the upper connecting rod 9 cooperates with the second positioning shaft 10 to play a guiding and limiting role on the movement of the output shaft 8, and simultaneously cooperates with the pull rod 4 to realize transmission.
[0024] Please refer to the drawings of the present application Figure 3 , the energy storage assembly comprises a lower connecting rod 6, one end of the lower connecting rod 6 is rotationally connected to the outside of the first positioning shaft 5, and the outside of the lower connecting rod 6 is provided with an energy storage spring component 7; the inside of the pull rod 4 is provided with a first long slot hole 13, and the outside of the connecting shaft 3 is slidingly connected to the inside of the first long slot hole 13; the inside of the cheek plate 1 is provided with a fan-shaped slot 14, and the outside of the output shaft 8 is slidingly connected to the inside of the fan-shaped slot 14.
[0025] Specifically, the lower connecting rod 6 is the core support component of the energy storage assembly, the energy storage spring member 7 stores energy by compression and drives the mechanism to complete the action when released, the first long slot hole 13 supports the connecting shaft 3 to drive the pull rod 4 to move, the fan-shaped slot 14 defines the movement trajectory of the output shaft 8, ensures that the output shaft 8 drives the contact to move according to the preset path, and finally realizes the rapid opening and closing of the contact, so that the switch action is independent of manual operation, the contact is prevented from burning out, and the safety of the power transfer switch is improved.
[0026] Please refer to the attached Figure 6 The motor 11 is fixedly connected to the outside of the cheek plate 1, the inside of the driving wheel 2 is provided with a special-shaped hole 12, and the output end of the motor 11 is arranged in the inside of the special-shaped hole 12.
[0027] Specifically, the mechanism can also use the motor 11 to provide electric driving power for the mechanism, the special-shaped hole 12 is matched with the output end of the motor 11, the motor 11 can stably drive the driving wheel 2 to rotate, automatic operation of the mechanism is realized, manual driving is not needed, and the universality of the mechanism is improved, so that the operation requirements in different scenes can be met.
[0028] Please refer to the attached Figure 2 and the attached Figure 8 The outside of the cheek plate 1 is fixedly connected with the shell 16, the inside of the shell 16 is provided with a buffer assembly, one end of the buffer assembly is fixedly connected with a support plate 20, and the outside of the support plate 20 is provided with a limiting assembly; the buffer assembly comprises a first buffer pad 17, the first buffer pad 17 is fixedly connected to the inside of the shell 16, a buffer elastic member 18 is fixedly connected to the outside of the first buffer pad 17, the other end of the buffer elastic member 18 is fixedly connected with a second buffer pad 19, a viscous damping 23 is fixedly connected to the inside of the shell 16, and the outside of the support plate 20 is fixedly connected to one end of the viscous damping 23; the buffer elastic member 18 is one of a disc spring, a wave spring and a spiral spring.
[0029] Specifically, the first buffer pad 17 and the second buffer pad 19 can absorb the impact force when the mechanism operates, the buffer elastic member 18 further buffers the vibration through elastic deformation, and the viscous damping 23 can slow down the operation speed of the mechanism to avoid excessive impact; the three kinds of buffer elastic members 18 can be selected according to the actual use scene to meet different buffering requirements, and the support plate 20 is used to transmit the buffering force, so that effective shock absorption and buffering can be realized, and the cheek plate 1 can be prevented from being damaged due to external impact.
[0030] Please refer to the attached Figure 7 and the attached Figure 8 The limiting assembly comprises a limiting block 21, the outside of the limiting block 21 is fixedly connected to the outside of the support plate 20, the inside of the shell 16 is provided with a limiting groove 22, and the outside of the limiting block 21 is slidably connected to the inside of the limiting groove 22; the outside of the support plate 20 is slidably connected to the inside of the shell 16.
[0031] Specifically, the limiting block 21 cooperates with the limiting groove 22 to limit the sliding range of the support plate 20 in the shell 16, so as to prevent the support plate 20 from deviating from the preset position due to excessive buffering movement, and the support plate 20 slides in the shell 16.
[0032] Workflow: In the initial state, the energy storage spring member 7 is in the uncompressed state, the output shaft 8 is located at the bottom of the sector-shaped groove 14 of the cheek plate 1, the connecting shaft 3 is located at the top of the first long slot hole 13 of the pull rod 4, and the switch is in a double-split state. When it is necessary to close the power supply on one side, a handle can be inserted through the top hole 15 for manual driving, or an electric motor 11 can be used for electric driving by cooperating with the special-shaped hole 12 of the driving wheel 2, so that the driving wheel 2 rotates in the counterclockwise direction. When the driving wheel 2 rotates, the connecting shaft 3 slides in the first long slot hole 13 and drives the pull rod 4 to move upward, the pull rod 4 pulls the output shaft 8, the upper connecting rod 9 rotates around the second positioning shaft 10, and the lower connecting rod 6 rotates around the first positioning shaft 5. The energy storage spring member 7 is gradually compressed to achieve energy storage. As the driving wheel 2 continues to rotate counterclockwise, when the upper connecting rod 9 and the lower connecting rod 6 are in the same straight line, the mechanism reaches the dead point balance state, the energy storage spring member 7 is compressed to the minimum extent, and the energy storage is completed. The driving wheel 2 continues to rotate in the counterclockwise direction at a small amplitude, breaking the dead point balance, and the energy storage spring member 7 rapidly releases energy to push the lower connecting rod 6 and the upper connecting rod 9 to move synchronously, and the output shaft 8 slides along the sector-shaped groove 14 to the top to drive the corresponding contact system to close. At this time, the connecting shaft 3 slides to the bottom of the first long slot hole 13. When it is necessary to disconnect the power supply on this side, the driving wheel 2 rotates in the clockwise direction, the connecting shaft 3 drives the pull rod 4 to move downward, the upper connecting rod 9 and the lower connecting rod 6 rotate in the opposite direction, and the energy storage spring member 7 is compressed again to store energy until the dead point balance is reached. The driving wheel 2 continues to rotate in the clockwise direction at a small amplitude, breaking the dead point balance, and the energy storage spring member 7 releases energy, and the output shaft 8 slides along the sector-shaped groove 14 back to the bottom, and the contact system is disconnected, and the connecting shaft 3 returns to the top of the first long slot hole 13. The impact force is transmitted to the shell 16 through the cheek plate 1, and then acts on the second buffer pad 19. After receiving the impact force, the second buffer pad 19 pushes the buffer elastic member 18 to elastically deform, thereby preliminarily absorbing and buffering the impact force. At the same time, the first buffer pad 17 cooperates with the buffer elastic member 18 to further weaken the transmission of vibration, and the impact force is synchronously transmitted to the viscous damping 23. The viscous damping 23 slows down the movement speed of the support plate 20 through internal damping action. The support plate 20 slides along the inside of the shell 16 under the action of the impact force, and the limiting block 21 on the outside of the support plate 20 synchronously slides along the limiting groove 22 of the shell 16, thereby achieving effective shock absorption and buffering.
[0033] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.
Claims
1. A storage spring operating mechanism for a dual-power transfer switch, comprising a cheek plate (1), characterized in that: A drive wheel (2) is rotatably connected to the outside of the cheek plate (1). A top hole (15) is provided on the top of the drive wheel (2). A connecting shaft (3) is rotatably connected to the lower side of the drive wheel (2). A pull rod (4) is provided on the outside of the connecting shaft (3). A first positioning shaft (5) is fixedly connected to the outside of the cheek plate (1). An energy storage component is provided on the outside of the first positioning shaft (5). An output shaft (8) is rotatably connected to the other end of the energy storage component. An upper connecting rod (9) is rotatably connected to the outside of the output shaft (8). A second positioning shaft (10) is rotatably connected to the other end of the upper connecting rod (9). One end of the second positioning shaft (10) is fixedly connected to the outside of the cheek plate (1). The outside of the output shaft (8) is rotatably connected to the inside of the pull rod (4).
2. The energy storage spring operating mechanism of a dual power supply transfer switch according to claim 1, characterized in that, The energy storage component includes a lower connecting rod (6), one end of which is rotatably connected to the outside of the first positioning shaft (5), and an energy storage spring (7) is installed on the outside of the lower connecting rod (6).
3. The energy storage spring operating mechanism of a dual-power transfer switch according to claim 1, characterized in that, The pull rod (4) has a first long slot (13) inside, and the connecting shaft (3) is slidably connected to the inside of the first long slot (13).
4. The energy storage spring operating mechanism of a dual power supply transfer switch according to claim 2, characterized in that, The cheek plate (1) has a fan-shaped groove (14) inside, and the output shaft (8) is externally slidably connected to the inside of the fan-shaped groove (14).
5. The energy storage spring operating mechanism of a dual-power transfer switch according to claim 1, characterized in that, A motor (11) is fixedly connected to the outside of the cheek plate (1), and an irregular hole (12) is opened inside the drive wheel (2). The output end of the motor (11) is located inside the irregular hole (12).
6. The energy storage spring operating mechanism of a dual power supply transfer switch according to claim 5, characterized in that, The cheek plate (1) is fixedly connected to the outside of a shell (16), and a buffer assembly is provided inside the shell (16). One end of the buffer assembly is fixedly connected to a support plate (20), and a limit assembly is provided outside the support plate (20).
7. The energy storage spring operating mechanism of a dual power supply transfer switch according to claim 6, characterized in that, The buffer assembly includes a first buffer pad (17), the outside of which is fixedly connected to the inside of the outer shell (16), and a buffer elastic element (18) is fixedly connected to the outside of the first buffer pad (17). A second buffer pad (19) is fixedly connected to the other end of the buffer elastic element (18). A viscous damper (23) is fixedly connected to the inside of the outer shell (16), and the outside of the support plate (20) is fixedly connected to one end of the viscous damper (23).
8. The energy storage spring operating mechanism of a dual power supply transfer switch according to claim 7, characterized in that, The buffer elastic element (18) is one of the disc spring, wave spring, and helical spring.
9. The energy storage spring operating mechanism of a dual power supply changeover switch according to claim 8, characterized in that, The limiting component includes a limiting block (21), the limiting block (21) is fixedly connected to the outside of the support plate (20), and a limiting groove (22) is opened inside the outer shell (16), and the limiting block (21) is slidably connected to the inside of the limiting groove (22).
10. The energy storage spring operating mechanism of a dual power supply transfer switch according to claim 6, characterized in that, The support plate (20) is externally slidably connected to the inside of the outer shell (16).