Dual power transfer switch spring reversing mechanism

Abstract

The application relates to a dual-power transfer switch spring reversing mechanism, which comprises a mounting plate, two power transfer shafts are rotationally connected to the mounting plate, and indication assemblies corresponding to the two power transfer shafts are arranged on the mounting plate; the indication assembly comprises a connecting rod rotationally connected to the mounting plate, two indication plates for indicating the on and off states are arranged on the connecting rod, a cover plate is arranged on the mounting plate, an opening exposing the indication plates is formed in the cover plate, and a switching assembly for driving the connecting rod to rotate is arranged on the mounting plate. The application can enable a user to externally identify the working states of the standby power supply and the normal power supply.

Description

Technical Field

[0001] This application relates to the field of power switch technology, and in particular to a spring-loaded commutation mechanism for a dual power transfer switch. Background Technology

[0002] A dual power switch is a common low-voltage electrical appliance. Its core function is to enable rapid switching between the main power supply and the backup power supply. When the main power supply experiences a power outage, undervoltage, or overvoltage, the dual power switch can switch the load circuit to the backup power supply, thereby effectively preventing equipment shutdown or functional failure due to power interruption and ensuring the continuous and stable operation of electrical equipment.

[0003] Existing dual power transfer switches mainly offer two operating modes—manual and automatic—to adapt to different usage scenarios when switching between backup and primary power supplies. However, the appearance of these switches does not indicate whether backup or primary power is being used, making it difficult for users to accurately identify the power status externally. This causes inconvenience and is a significant shortcoming. Utility Model Content

[0004] In order to enable users to externally identify the operating status of backup power and main power, this application provides a dual power transfer switch spring reversing mechanism.

[0005] The dual-power transfer switch spring commutation mechanism provided in this application adopts the following technical solution: A dual-power transfer switch spring reversing mechanism includes a mounting plate with two power shafts rotatably connected to it. The mounting plate is provided with indicator components corresponding to the two power shafts. Each indicator component includes a connecting rod rotatably connected to the mounting plate, and two indicator plates for indicating closed and open states are provided on the connecting rod. A cover plate is provided on the mounting plate with openings exposing the indicator plates. A switching component for driving the connecting rod to rotate is also provided on the mounting plate.

[0006] By adopting the above technical solution, during use, the user can drive the power shaft to rotate electrically or manually. When the power shaft rotates, the connecting rod is driven to rotate through the switching component. During the rotation of the connecting rod, different indicator plates will move to the opening. At this time, the user can observe the indicator plate currently in the opening position through the opening, and thus identify the closed or open state of the corresponding power shaft. This process realizes the visual indication of the power status through mechanical transmission, so that the user can also identify the working status of the power supply from the outside. This provides convenience for users to use dual power switches and makes up for the shortcomings of the existing technology.

[0007] Optionally, the switching component includes a first spring, with its opposite ends connected to the two connecting rods respectively. In the natural state of the first spring, the indicator plate indicating the open state is located at the opening.

[0008] By adopting the above technical solution, when the circuit breaker is tripped or the power is disconnected, the power shaft is not driven by external force and is in an initial static state. The two connecting rods maintain a preset rotation posture under the elastic action of the first spring, so that the indicator plate indicating the tripped state is located at the opening. The user can directly observe that the power is disconnected through the opening.

[0009] Optionally, the switching assembly further includes a mounting cylinder coaxially sleeved on the power shaft, a switching shell is provided on the mounting cylinder, and a pushing protrusion is provided on the outer surface of the switching shell near the connecting rod. When the power shaft rotates from the closed state to the open state, the pushing protrusion overcomes the first spring force and pushes the connecting rod to rotate. A fixing assembly for fixing the switching shell is provided on the mounting plate.

[0010] By adopting the above technical solution, when closing the circuit, the power shaft is manually driven to rotate, which in turn drives the switching housing on the mounting cylinder to rotate. The switching housing drives the push protrusion to gradually approach the connecting rod and eventually pushes the connecting rod to rotate. The connecting rod drives the closing indicator plate to move to the opening. At this time, the fixing component fixes the position of the switching housing, reducing the possibility of the indicator plate rebounding due to the rotation of the switching housing. When opening the circuit, the fixing component is released from fixing the switching housing. The power shaft rotates in the opposite direction under the drive of external force, which drives the push protrusion to move in the opposite direction. At this time, the push protrusion disengages from the connecting rod, and the first spring pulls the connecting rod to rotate in the opposite direction and drives the opening indicator plate to move to the opening, realizing the indication of the opening status. In this way, the function of indicating the power status through mechanical transmission is realized.

[0011] Optionally, the fixing component includes a fixing plate rotatably sleeved on the outer surface of the mounting cylinder, with both opposite ends of the fixing plate extending out of the switching shell. The switching shell has a moving groove that slides with the fixing plate. A magnetic block is provided at the end of the fixing plate near the connecting rod. An electromagnetic block that attracts and engages with the magnetic block is provided on the mounting plate. A second spring is provided at the end of the fixing plate away from the magnetic block. The second spring connects the switching shell and the fixing plate.

[0012] By adopting the above technical solution, when the circuit is closed, the electromagnetic block is energized. Under the connection of the second spring, when the switching shell rotates, it drives the fixing plate to rotate toward the electromagnetic block. When the pushing protrusion moves to abut against the end of the connecting rod, the electromagnetic block attracts the magnetic block and the fixing plate is fixed in position. Then, the power shaft drives the switching shell to continue rotating a short distance under the drive of external force. The fixing plate slides in the moving groove, and the pushing protrusion pushes the connecting rod to rotate, causing the closing indicator plate to move to the opening, providing the user with a clear indication of the closing status. The setting of the fixing component realizes the initial fixation of the fixing plate and the switching shell, reducing the possibility that the pushing protrusion will detach from the connecting rod due to the initial rebound force of the first spring in the early stage of closing, providing a stable foundation for the continued rotation of the switching shell, and ensuring that the movement of the closing indicator plate is not interrupted.

[0013] Optionally, the switching shell includes a first switching plate and a second switching plate that are spliced ​​together. The pushing protrusion is integrally formed on the first switching plate. The first switching plate has plug-in posts on opposite sides. The second switching plate has a plug-in groove that engages with the plug-in posts. The end of the second spring away from the fixing plate is disposed on one of the plug-in posts.

[0014] By adopting the above technical solution, during the assembly of the switching component, the fixing plate is sleeved on the outer surface of the mounting cylinder, and then the two ends of the second spring are connected to the plug-in post and the fixing plate to complete the assembly of the fixing plate and the second spring. Next, the plug-in slot of the second switching plate is aligned with the plug-in post on both sides of the first switching plate and inserted. Finally, the mounting cylinder is sleeved on the outer surface of the power shaft to complete the overall assembly of the switching component. The entire process does not rely on complex connecting parts such as bolts and screws, which simplifies the assembly process of the switching shell.

[0015] Optionally, the mounting plate is provided with a first baffle corresponding to each of the two connecting rods. The two first baffles are respectively provided on opposite sides of the mounting plate. A second baffle is provided between the two first baffles on the mounting plate. When the connecting rod abuts against the first baffle, the indicator plate indicating the open state is located at the opening. When the connecting rod abuts against the second baffle, the indicator plate indicating the closed state is located at the opening.

[0016] By adopting the above technical solution, the first baffle and the second baffle restrict the movement trajectory of the connecting rod, avoiding the problem of excessive rotation of the connecting rod due to excessive driving force of the switching component, which would cause misalignment of the indicator plate and confusion of status indication. At the same time, it provides indirect operation feedback to the user.

[0017] Optionally, both the pushing surface of the pushing protrusion and the bottom surface of the connecting rod are arc surfaces.

[0018] By adopting the above technical solution, since both the pushing surface of the pushing protrusion and the bottom surface of the connecting rod are arc surfaces, the contact area is larger when they come into contact, which allows the force exerted by the pushing protrusion on the connecting rod to be transmitted more evenly to the entire connecting rod, avoiding local stress concentration that could cause deformation of the connecting rod and ensuring the stability of the connecting rod during rotation.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. This application, by setting an indicator component and a switching component, allows the user to electrically or manually drive the power shaft to rotate during use. When the power shaft rotates, the switching component drives the connecting rod to rotate. During the rotation of the connecting rod, different indicator plates will move to the opening. At this time, the user can observe the indicator plate currently in the opening position through the opening, and thus identify the closed or open state of the corresponding power shaft. This process realizes the visual indication of the power status through mechanical transmission, so that the user can also identify the working status of the power supply from the outside, providing convenience for the user to use dual power switches and making up for the shortcomings of the prior art. 2. This application sets up a fixing component. When the circuit is closed, the electromagnetic block is energized. Under the connection of the second spring, when the switching shell rotates, it drives the fixing plate to rotate toward the electromagnetic block. When the pushing protrusion moves to abut against the end of the connecting rod, the electromagnetic block attracts the magnetic block to achieve the initial fixation of the fixing plate position. This reduces the possibility that the pushing protrusion will detach from the connecting rod in the early stage of circuit closing due to the initial rebound force of the first spring. This provides a stable foundation for the continued rotation of the switching shell and ensures that the movement of the circuit closing indicator plate is not interrupted. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this application.

[0021] Figure 2 This is a schematic diagram of the switching component and the fixing component in the embodiments of this application.

[0022] Figure 3 This is an exploded view of the first switching plate, the fixing plate, and the second switching plate in an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 01, power shaft; 1, mounting plate; 101, first baffle; 102, second baffle; 2, indicating assembly; 21, connecting rod; 22, indicating plate; 3, cover plate; 31, opening; 4, switching assembly; 41, first spring; 42, mounting cylinder; 43, switching housing; 431, first switching plate; 4311, plug-in post; 432, second switching plate; 4321, plug-in slot; 44, pushing protrusion; 5, fixing assembly; 51, fixing piece; 52, magnet; 53, electromagnetic block; 54, second spring; 6, moving slot. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0025] This application discloses a dual-power transfer switch spring commutation mechanism.

[0026] Reference Figure 1 A dual power transfer switch spring reversing mechanism includes a mounting plate 1, on which two power shafts 01 are rotatably connected. The two power shafts 01 correspond to the main power supply and the backup power supply. The on / off state of the corresponding power circuit is controlled by the forward or reverse rotation of the power shafts 01, thereby realizing the opening and closing functions. In this embodiment, the power shafts 01 can be driven to rotate manually or electrically.

[0027] Reference Figure 1 The mounting plate 1 is provided with indicator components 2 corresponding to the two power shafts 01. The indicator components 2 include connecting rods 21 rotatably connected to the mounting plate 1. Two indicator plates 22 for indicating the closed and open states are fixedly connected to the top of the connecting rods 21. The surfaces of the two indicator plates 22 are coated with different colors. In this embodiment, the red indicator plate 22 indicates the open state and the green indicator plate 22 indicates the closed state. A cover plate 3 is fixedly connected to the mounting plate 1. The cover plate 3 has an opening 31 that exposes the indicator plates 22. The user can observe the color of the indicator plates 22 through the opening 31 to identify the closed and open states of the power supply.

[0028] Reference Figure 1 The mounting plate 1 has two first baffles 101 and one second baffle 102 fixedly connected to its surface. The two first baffles 101 are located on opposite sides of the mounting plate 1, and the second baffle 102 is located at the center of the mounting plate 1. The first baffle 101 has an arc-shaped groove (not shown in the figure) that cooperates with the rotating shaft of the connecting rod 21. When the rod of the connecting rod 21 abuts against the first baffle 101, the indicator plate 22 indicating the open state is located at the opening 31. When the connecting rod 21 abuts against the second baffle 102, the indicator plate 22 indicating the closed state is located at the opening 31.

[0029] During the rotation of the connecting rod 21, the first baffle 101 and the second baffle 102 restrict the movement trajectory of the connecting rod 21, preventing the indicator plate 22 from being misaligned due to excessive rotation of the connecting rod 21, which would cause confusion in the status indication. At the same time, it provides indirect operation feedback to the user.

[0030] Reference Figure 1 and Figure 2 The mounting plate 1 is provided with a switching component 4, which includes a first spring 41. The two opposite ends of the first spring 41 are hooked to the ends of the two connecting rods 21 away from the indicator plate 22. In the natural state, the first spring 41 is in contact with the adjacent first baffle 101.

[0031] Reference Figure 1 and Figure 2 The switching assembly 4 also includes a mounting cylinder 42 coaxially sleeved on the outer surface of the power shaft 01. In this embodiment, the cross-section of the power shaft 01 is hexagonal. When the power shaft 01 rotates, it drives the mounting cylinder 42 to rotate synchronously. A switching shell 43 is fixedly connected to the mounting cylinder 42. A pushing protrusion 44 is integrally formed on the outer surface of the switching shell 43 near the connecting rod 21. The end face of the pushing protrusion 44 facing the connecting rod 21 and the bottom end of the connecting rod 21 are both arc-shaped, thereby increasing the contact area between the pushing protrusion 44 and the pushing rod.

[0032] Reference Figure 1 and Figure 2 The mounting plate 1 is provided with a fixing component 5, which includes a fixing piece 51 rotatably sleeved on the outer surface of the mounting shell. Both ends of the fixing piece 51 extend into a switching shell 43. The switching shell 43 is provided with a moving groove 6 that slides with the fixing piece 51. A magnetic block 52 is fixedly connected to the end of the fixing piece 51 near the connecting rod 21. An electromagnetic block 53 that attracts and cooperates with the magnetic block 52 is fixedly connected to the mounting plate 1. When the circuit is closed, the electromagnetic block 53 is energized. When the circuit is open, the electromagnetic block 53 is de-energized. A second spring 54 is hooked to the end of the fixing piece 51 away from the magnetic block 52. The end of the second spring 54 away from the fixing piece 51 is hooked to the switching shell 43. When the electromagnetic block 53 and the magnetic block 52 attract and cooperate, the protrusion 44 is pushed to abut against the bottom of the connecting rod 21.

[0033] During the closing operation, the user drives the power shaft 01 to rotate electrically or manually. The power shaft 01 drives the mounting cylinder 42 and the switching housing 43 to rotate synchronously. The switching housing 43 drives the pushing protrusion 44 to gradually approach the connecting rod 21. Under the connection of the second spring 54, the switching housing 43 drives the fixing plate 51 to gradually approach the electromagnetic block 53. When the pushing protrusion 44 abuts against the bottom end of the connecting rod 21, the electromagnetic block 53 attracts the magnetic block 52 on the fixing plate 51, thus initially fixing the position of the fixing plate 51 and the switching housing 43, reducing the impact of the first spring on the pushing protrusion 44 during the initial closing operation. The initial rebound force of the spring 41 may cause it to disengage from the connecting rod 21, providing a stable foundation for the continued rotation of the switching housing 43 and ensuring that the movement of the closing indicator plate 22 is uninterrupted. Subsequently, the power shaft 01 drives the switching housing 43 to continue rotating a short distance under the external force, and slides relative to it in the moving groove 6. This pushes the protrusion 44 to overcome the elastic force of the first spring 41 and push the connecting rod 21 to rotate until it abuts against the second baffle 102. At this time, the indicator plate 22 indicating the closing status moves to the opening 31, and the user can identify the closing status of the power supply through the indicator plate 22. During the tripping operation, the electromagnetic block 53 is de-energized, and the fixing force of the electromagnetic block 53 and the magnetic block 52 on the fixing plate 51 disappears. The power shaft 01 is reset in the reverse direction under the action of the reset device or manual operation. When the power shaft 01 is reset, it drives the pushing protrusion 44 on the switching housing 43 away from the connecting rod 21. The second spring 54 pulls the fixing plate 51 to reset in the switching housing 43 through its own elastic force. At the same time, the two connecting rods 21 rotate in the opposite direction toward the position of the first baffle 101 under the elastic action of the first spring 41. When the connecting rod 21 abuts against the end of the first baffle 101, the tripping indicator plate 22 moves to the opening 31 to complete the state switching. In this way, the power status is visualized, so that the user can accurately identify the power status when using the dual power switch, which makes up for the shortcomings of the prior art.

[0034] Reference Figure 2 and Figure 3 The switching shell 43 includes a first switching plate 431 and a second switching plate 432 that are spliced ​​together. The pushing protrusion 44 and the mounting cylinder 42 are integrally formed on the first switching plate 431. The moving groove 6 is formed by splicing the first switching plate 431 and the second switching plate 432. The two opposite sides of the first switching plate 431 are fixedly connected with plug-in posts 4311. The second switching plate 432 is provided with a plug-in groove 4321 that is plugged into and cooperates with the plug-in posts 4311. The end of the second spring 54 away from the fixed piece 51 is hooked onto the plug-in post 4311 near the middle of the mounting plate 1.

[0035] During the assembly of the switching assembly 4, the fixing plate 51 is fitted onto the outer surface of the mounting cylinder 42, and then the two ends of the second spring 54 are connected to the plug-in post 4311 and the fixing plate 51 to complete the assembly of the fixing plate 51 and the second spring 54. Next, the plug-in slot 4321 of the second switching plate 432 is aligned with the plug-in post 4311 on both sides of the first switching plate 431 and inserted. Finally, the mounting cylinder 42 is fitted onto the outer surface of the power shaft 01 to complete the overall assembly of the switching assembly 4. The entire process does not rely on complex connecting parts such as bolts and screws, which simplifies the assembly process of the switching housing 43.

[0036] The implementation principle of the dual power transfer switch spring reversing mechanism in this application embodiment is as follows: During the closing operation, the user drives the power shaft 01 to rotate electrically or manually. The power shaft 01 drives the mounting cylinder 42 and the switching housing 43 to rotate synchronously. The switching housing 43 drives the pushing protrusion 44 to gradually approach the connecting rod 21. Under the connection of the second spring 54, the switching housing 43 drives the fixing plate 51 to gradually approach the electromagnetic block 53. When the pushing protrusion 44 abuts against the bottom end of the connecting rod 21, the electromagnetic block 53 attracts the magnetic block 52 on the fixing plate 51, thereby initially fixing the position of the fixing plate 51 and the switching housing 43, reducing the... The push protrusion 44 may disengage from the connecting rod 21 due to the initial rebound force of the first spring 41 in the initial stage of closing, providing a stable foundation for the continued rotation of the switching housing 43 and ensuring that the movement of the closing indicator plate 22 is not interrupted. Subsequently, the power shaft 01 drives the switching housing 43 to continue rotating a short distance under the external force, and slides relative to it in the moving groove 6. The push protrusion 44 overcomes the elastic force of the first spring 41 and pushes the connecting rod 21 to rotate until it abuts against the second baffle 102. At this time, the indicator plate 22 indicating the closing status moves to the opening 31, and the user can identify the closing status of the power supply through the indicator plate 22. During the tripping operation, the electromagnetic block 53 is de-energized, and the fixing force of the electromagnetic block 53 and the magnetic block 52 on the fixing plate 51 disappears. The power shaft 01 is reset in the reverse direction under the action of the reset device or manual operation. When the power shaft 01 is reset, it drives the pushing protrusion 44 on the switching housing 43 away from the connecting rod 21. The second spring 54 pulls the fixing plate 51 to reset in the switching housing 43 through its own elastic force. At the same time, the two connecting rods 21 rotate in the opposite direction toward the position of the first baffle 101 under the elastic action of the first spring 41. When the connecting rod 21 abuts against the end of the first baffle 101, the tripping indicator plate 22 moves to the opening 31 to complete the state switching. In this way, the power status is visualized, so that the user can accurately identify the power status when using the dual power switch, which makes up for the shortcomings of the prior art.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dual-power transfer switch spring reversing mechanism, comprising a mounting plate (1), wherein two power shafts (01) are rotatably connected to the mounting plate (1), characterized in that, The mounting plate (1) is provided with an indicator assembly (2) corresponding to the two power shafts (01). The indicator assembly (2) includes a connecting rod (21) rotatably connected to the mounting plate (1). The connecting rod (21) is provided with two indicator plates (22) for indicating the closed and open states. The mounting plate (1) is provided with a cover plate (3). The cover plate (3) has an opening (31) for exposing the indicator plates (22). The mounting plate (1) is provided with a switching assembly (4) for driving the connecting rod (21) to rotate.

2. The dual-power transfer switch spring commutation mechanism according to claim 1, characterized in that, The switching component (4) includes a first spring (41), the two ends of which are respectively connected to the two connecting rods (21). In the natural state of the first spring (41), the indicator plate (22) indicating the open state is located at the opening (31).

3. The dual-power transfer switch spring commutation mechanism according to claim 2, characterized in that, The switching assembly (4) further includes a mounting cylinder (42) coaxially sleeved on the power shaft (01). A switching shell (43) is provided on the mounting cylinder (42). A pushing protrusion (44) is provided on the outer surface of the switching shell (43) near the connecting rod (21). When the power shaft (01) rotates from the closed state to the open state, the pushing protrusion (44) overcomes the elastic force of the first spring (41) and pushes the connecting rod (21) to rotate. A fixing assembly (5) for fixing the switching shell (43) is provided on the mounting plate (1).

4. The dual-power transfer switch spring commutation mechanism according to claim 3, characterized in that, The fixing component (5) includes a fixing plate (51) rotatably sleeved on the outer surface of the mounting cylinder (42). Both ends of the fixing plate (51) extend out of the switching shell (43). The switching shell (43) is provided with a moving groove (6) that slides with the fixing plate (51). A magnetic block (52) is provided at the end of the fixing plate (51) near the connecting rod (21). An electromagnetic block (53) that attracts and cooperates with the magnetic block (52) is provided on the mounting plate (1). A second spring (54) is provided at the end of the fixing plate (51) away from the magnetic block (52). The second spring (54) connects the switching shell (43) and the fixing plate (51).

5. The dual-power transfer switch spring commutation mechanism according to claim 4, characterized in that, The switching shell (43) includes a first switching plate (431) and a second switching plate (432) that are spliced ​​together. The pushing protrusion (44) is integrally formed on the first switching plate (431). The first switching plate (431) has plug-in posts (4311) on opposite sides. The second switching plate (432) has a plug-in groove (4321) that is plugged into the plug-in post (4311). The end of the second spring (54) away from the fixing piece (51) is disposed on one of the plug-in posts (4311).

6. The dual-power transfer switch spring commutation mechanism according to claim 1, characterized in that, The mounting plate (1) is provided with a first baffle (101) corresponding to the two connecting rods (21) one by one. The two first baffles (101) are respectively provided on opposite sides of the mounting plate (1). The mounting plate (1) is provided with a second baffle (102) between the two first baffles (101). When the connecting rod (21) abuts against the first baffle (101), the indicator plate (22) indicating the open state is located at the opening (31). When the connecting rod (21) abuts against the second baffle (102), the indicator plate (22) indicating the closed state is located at the opening (31).

7. The dual-power transfer switch spring commutation mechanism according to claim 3, characterized in that, The pushing surface of the pushing protrusion (44) and the bottom surface of the connecting rod (21) are both arc surfaces.

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