A high current transfer switch isolation padlock structure

Abstract

The utility model relates to the technical field of transfer switches, and specifically is an isolation padlock structure for a large current transfer switch. The utility model comprises a switch body, wherein a display panel is fixedly connected to one side of the upper end of the switch body, a slide plate is slidably connected to the display plate, a display window and a through hole are provided on the slide plate, a hanging plate is fixedly connected to one side of the slide plate, an insertion hole is provided on the upper end of the switch body, the insertion hole and the through hole are matched, a rectangular frame is fixedly connected to one side of the upper end of the switch body, the hanging plate and the rectangular frame are plug-fitted, a card plate is fixedly connected to one end of the switch body, a handle is card-fitted in the card plate, and the handle and the insertion hole are plug-fitted; when the circuit is being repaired, the switch body is controlled to be disconnected, and multiple locks are hung on the hanging plate at the same time, so that multiple groups of workers can perform construction at the same time, and the disconnected position of the switch body needs to be locked, so as to prevent the maintenance personnel from closing the switch to cause danger to other maintenance personnel, or to prevent secondary damage to the fault circuit and the spread of the fault, thereby improving the safety performance of the transfer switch.

Description

Technical Field

[0001] The utility model relates to the field of transfer switches, in particular to an isolation padlock structure of a large current transfer switch. Background Art

[0002] With the widespread use of automatic transfer switching appliances in various power consumption fields, they play a very important role in ensuring the continuity of power supply in important places. High-current transfer switches play a very important role in some places, and their safety must be ensured when using them.

[0003] Existing high-current conversion switches, such as the PC-level high-current dual-power automatic conversion switch proposed in patent application number "CN202320279478.7", can give the original power supply a certain amount of time to extinguish the arc when converting the power supply through structures such as the power wiring structure, the power conversion structure, the push block, and the vacuum arc extinguishing chamber. However, there are certain safety hazards during use.

[0004] In the prior art, for example, a PC-level high-current dual-power automatic transfer switch proposed in patent application number "CN202320279478.7". During actual use, when a power supply or circuit fault occurs at the lower end of the transfer switch electrical appliance, in order to troubleshoot and eliminate the fault, the user needs to disconnect the power supply circuit to put the transfer switch electrical appliance in a safe two-power disconnection position, and can be manually controlled according to the maintenance cycle. During this period, the power supply must not be closed again to prevent others from misoperating during maintenance, causing the switch electrical appliance to be closed and energized, endangering the personal safety of maintenance personnel, or causing secondary damage to the faulty circuit and the spread of the fault. This requires the transfer switch electrical appliance to have an isolation padlock structure in the position where both power supplies are disconnected. Therefore, a high-current transfer switch isolation padlock structure is proposed. Utility Model Content

[0005] The utility model aims to provide a large current transfer switch isolation padlock structure to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A large current transfer switch isolation padlock structure comprises a switch body, a display panel is fixedly connected to one side of the upper end of the switch body, a slide plate is slidably connected to the display panel, a display window and a through hole are provided on the slide plate, a hanging plate is fixedly connected to one side of the slide plate, an insertion hole is provided on the upper end of the switch body, the insertion hole and the through hole cooperate, a rectangular frame is fixedly connected to one side of the upper end of the switch body, the hanging plate and the rectangular frame are plug-fitted, a clamping plate is fixedly connected to one end of the switch body, a handle is clamped in the clamping plate, and the handle and the insertion hole are plug-fitted.

[0008] Preferably, the hanging plate is penetrated with a plurality of hanging holes, the rectangular frame is located above the handle, the display window is located on one side of the through hole, the display window and the display board cooperate, a protective component is fixedly connected to the circuit body, and the protective component and the slide board are snap-fitted.

[0009] Preferably, the protection component includes a rotating shaft, which is fixedly connected to the inside of the switch body. A rotating plate is rotatably connected to the side wall of the rotating shaft, and an insert plate is fixedly connected to one end of the rotating plate. An abutment interface is opened at the upper end of the switch body, and the insert plate and the abutment interface are plug-fitted.

[0010] Preferably, a rotating frame is rotatably connected in the switch body, one end of the rotating frame is rotatably connected to an end of the rotating plate away from the plug plate, and a driving assembly is fixedly connected in the switch body, and the driving assembly cooperates with one end of the rotating frame.

[0011] Preferably, the driving assembly includes a fixed frame, which is fixedly connected to the inside of the switch body, a cylinder is fixedly connected inside the fixed frame, a top plate is fixedly connected to the upper end of the fixed frame, a fixed column one and a fixed column two are fixedly connected to one side of the top plate, a driving plate is fixedly connected to the output end of the cylinder, the middle part of the driving plate is rotatably connected to the fixed column one, the end of the driving plate cooperates with the fixed column two, and the end of the driving plate is located on one side of the inside of the rotating frame.

[0012] Preferably, a connecting plate is fixedly connected to the lower end of the rotating frame, a micro switch is fixedly connected to the switch body, and the connecting plate and the micro switch cooperate with each other.

[0013] Beneficial effects of the utility model:

[0014] The utility model can observe the state of the switch body through the display window by sliding the slide plate, and when the through hole and the insertion hole are aligned, the handle is inserted into the insertion hole to manually control the switch body. When the line is inspected and maintained, the switch body is controlled to be disconnected, so that the hanging plate passes through the rectangular frame, and a lock is placed on the hanging plate. Multiple locks can be hung on the hanging plate at the same time, so that multiple groups of workers can work at the same time, and they all need to lock the disconnected position of the switch body to prevent the maintenance personnel from closing the switch to cause danger to other maintenance personnel, or to prevent secondary damage to the fault circuit and the spread of the fault, thereby improving the safety performance of the transfer switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the switch body structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the switch body of the utility model;

[0018] Figure 3 It is a schematic diagram of the protection component and the drive switch structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the drive plate of the utility model;

[0020] The reference numerals in the figures are as follows:

[0021] 1. Switch body; 2. Display board; 3. Slide plate; 4. Display window; 5. Through hole; 6. Insert hole; 7. Handle; 8. Card plate; 9. Rectangular frame; 10. Hanging plate; 11. Fixed frame; 12. Cylinder; 13. Drive plate; 14. Rotating frame; 15. Fixed column 1; 16. Fixed column 2; 17. Top plate; 18. Connecting plate; 19. Micro switch; 20. Rotating shaft; 21. Rotating plate; 22. Abutment interface; 23. Inserting plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] A large current transfer switch isolation padlock structure comprises a switch body 1, wherein a display panel 2 is fixedly connected to one side of the upper end of the switch body 1, a slide plate 3 is slidably connected to the display panel 2, a display window 4 and a through hole 5 are provided on the slide plate 3, a hanging plate 10 is fixedly connected to one side of the slide plate 3, an insertion hole 6 is provided at the upper end of the switch body 1, the insertion hole 6 and the through hole 5 cooperate, a rectangular frame 9 is fixedly connected to one side of the upper end of the switch body 1, the hanging plate 10 and the rectangular frame 9 are plug-fitted, a card plate 8 is fixedly connected to one end of the switch body 1, a handle 7 is card-fitted in the card plate 8, and the handle 7 and the insertion hole 6 are plug-fitted.

[0024] like Figure 1-Figure 2 As shown, a slide plate 3 and a display panel 2 are arranged on the switch body 1. When the slide plate 3 is at the rightmost end (when the slide plate 3 is farthest from the card plate 8), the display window 4 displays "automatic". At this time, the insertion hole 6 is blocked by the slide plate 3, and the switch electrical appliance executes the controller automatic conversion command (the internal controller and the automatic conversion structure of the switch electrical appliance are both prior art); when the slide plate 3 slides to the left until the display window 4 displays "manual", the insertion hole 6 is aligned with the through hole 5, and the insertion hole 6 is exposed (as shown in FIG. Figure 2state), and at the same time, the internal electrical control triggers the lock (which is the same as the structure of automatically changing to the manual state in the prior art, so the electrical control structure inside the switch body 1 is the prior art and will not be elaborated on in detail), and the automatic conversion action capability is lost. The switch body 1 no longer executes the action instructions sent by the controller, and the switch body 1 can be manually controlled by inserting the handle 7 into the insertion hole 6.

[0025] When the two power supplies are in the off position, the slide plate 3 can be moved to the left until the display window 4 displays the "padlock" state. At this time, the insertion hole 6 is blocked and cannot be manually operated by the handle 7. At the same time, the hanging plate 10 passes through the rectangular frame 9, and multiple locks can be hung on the hanging plate 10 at the same time (such as Figure 1 State), so that multiple groups of workers can work at the same time, they all need to lock the switch body 1 in the disconnected position to prevent the maintenance personnel from closing the switch and causing danger to other maintenance personnel, or to prevent secondary damage to the fault circuit and the spread of the fault, thereby improving the safety performance of the transfer switch. Whenever a maintenance personnel completes his work, he removes the next lock until all locks are removed, and then the slide plate 3 can be moved to the automatic or manual state. The controller in the switch body 1 will control the state of the transfer switch, exit the isolation padlock function, and restore the transfer switch to the automatic or manual state.

[0026] The hanging plate 10 is provided with a plurality of hanging holes, the rectangular frame 9 is located above the handle 7, the display window 4 is located on one side of the through hole 5, the display window 4 cooperates with the display board 2, a protective component is fixedly connected in the circuit body, and the protective component and the slide plate 3 are snap-fitted.

[0027] like Figure 1-Figure 2 As shown, multiple groups of hanging holes can hang multiple locks at the same time, and the locks are suspended above the handle 7. The protective component prevents the switch from being locked in the closed position due to accidental operation when the switch is in automatic or manual state, so that the switch electrical appliance cannot be switched in time when action is required.

[0028] The protection component includes a rotating shaft 20, which is fixed inside the switch body 1. The side wall of the rotating shaft 20 is rotatably connected to a rotating plate 21, and one end of the rotating plate 21 is fixed to an insert plate 23. The upper end of the switch body 1 is provided with an abutment interface 22, and the insert plate 23 and the abutment interface 22 are plugged and matched.

[0029] like Figure 1-Figure 4 As shown, when the rotating plate 21 rotates, the inserting plate 23 will pass through the abutting port 22 and engage with the hanging plate 10 on one side of the sliding plate 3 .

[0030] The switch body 1 is rotatably connected with a rotating frame 14 , one end of which is rotatably connected with an end of a rotating plate 21 away from the plug plate 23 . A driving assembly is fixedly connected with the switch body 1 , and the driving assembly cooperates with one end of the rotating frame 14 .

[0031] like Figure 1-Figure 4As shown, the driving assembly drives the rotating frame 14 to rotate, so that the rotating frame 14 pulls the rotating plate 21 to rotate.

[0032] The driving assembly includes a fixing frame 11, which is fixedly connected to the inside of the switch body 1, and a cylinder 12 is fixedly connected to the inside of the fixing frame 11. A top plate 17 is fixedly connected to the upper end of the fixing frame 11, and a fixing column 15 and a fixing column 2 16 are fixedly connected to one side of the top plate 17. A driving plate 13 is fixedly connected to the output end of the cylinder 12, and the middle part of the driving plate 13 is rotatably connected to the fixing column 15, and the end of the driving plate 13 cooperates with the fixing column 2 16, and the end of the driving plate 13 is located on one side of the inside of the rotating frame 14.

[0033] like Figure 1-Figure 4 As shown, the output end of the cylinder 12 extends, the end of the drive plate 13 close to the output end is lifted, and the end away from the output end is lowered. The end of the rotating frame 14 close to the drive plate 13 is unsupported and will fall, and the rotating plate 21 is pulled to lift the plug plate 23 through the abutment interface 22, preventing the slide plate 3 from sliding and locking; the output end of the cylinder 12 contracts, the end of the drive plate 13 close to the output end is lowered, and the end away from the output end is lifted. The end of the rotating frame 14 close to the drive plate 13 is supported by the drive plate 13 and will rise, and the rotating plate 21 is pulled to make the plug plate 23 fall, which is located inside the switch body 1. Through this drive component and protective component, the switch cannot be locked in position when the switch electrical appliance is in the closed position. Preventing accidental operation from locking in the closed position, the switch electrical appliance cannot be switched in time when it needs to be operated.

[0034] A connecting plate 18 is fixedly connected to the lower end of the rotating frame 14 , a micro switch 19 is fixedly connected to the switch body 1 , and the connecting plate 18 and the micro switch 19 cooperate with each other.

[0035] like Figure 1-Figure 4 As shown, when the plug board 23 is plugged in through the abutment interface 22, the connecting plate 18 abuts against the micro switch 19, which can control the internal operation of the switch body 1 to prevent misoperation, so that the switch body 1 can indirectly know the status through the protection component.

[0036] The working principle of a large current transfer switch isolation padlock structure provided by the utility model is as follows:

[0037] By sliding the slide plate 3, the state of the switch body 1 can be observed through the display window 4. When the through hole 5 and the insertion hole 6 are aligned, the handle 7 is inserted into the insertion hole 6 to manually control the switch body 1. When the line is being repaired, the switch body 1 is controlled to be disconnected, so that the hanging plate 10 passes through the rectangular frame 9, and a lock is placed on the hanging plate 10. Multiple locks can be hung on the hanging plate 10 at the same time, so that multiple groups of workers can work at the same time. They all need to lock the disconnected position of the switch body 1 to prevent maintenance personnel from closing the switch to cause danger to other maintenance personnel, or to prevent secondary damage to the faulty circuit and the spread of the fault, thereby improving the safety performance of the transfer switch.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A high current transfer switch isolation padlock structure, comprising a switch body (1), characterized in that: A display panel (2) is fixedly connected to one side of the upper end of the switch body (1), a slide plate (3) is slidably connected to the display panel (2), a display window (4) and a through hole (5) are provided on the slide plate (3), a hanging plate (10) is fixedly connected to one side of the slide plate (3), an insertion hole (6) is provided on the upper end of the switch body (1), the insertion hole (6) and the through hole (5) are matched, a rectangular frame (9) is fixedly connected to one side of the upper end of the switch body (1), the hanging plate (10) and the rectangular frame (9) are plug-fitted, a clamping plate (8) is fixedly connected to one end of the switch body (1), a handle (7) is clamped in the clamping plate (8), and the handle (7) and the insertion hole (6) are plug-fitted.

2. A high current transfer switch isolation padlock structure according to claim 1, characterized in that: The hanging plate (10) is provided with a plurality of groups of hanging holes, the rectangular frame (9) is located above the handle (7), the display window (4) is located on one side of the through hole (5), the display window (4) and the display plate (2) cooperate, a protection component is fixedly connected to the circuit body, and the protection component and the slide plate (3) are snap-fitted.

3. A high current transfer switch isolation padlock structure according to claim 2, characterized in that: The protection component comprises a rotating shaft (20), the rotating shaft (20) is fixedly connected to the inside of the switch body (1), a rotating plate (21) is rotatably connected to the side wall of the rotating shaft (20), an inserting plate (23) is fixedly connected to one end of the rotating plate (21), an abutting interface (22) is provided at the upper end of the switch body (1), and the inserting plate (23) and the abutting interface (22) are plugged and matched.

4. A high current transfer switch isolation padlock structure according to claim 3, characterized in that: A rotating frame (14) is rotatably connected inside the switch body (1), one end of the rotating frame (14) is rotatably connected to one end of the rotating plate (21) away from the plug plate (23), and a driving component is fixedly connected inside the switch body (1), the driving component and one end of the rotating frame (14) are matched.

5. A high current transfer switch isolation padlock structure according to claim 4, characterized in that: The driving assembly comprises a fixing frame (11), the fixing frame (11) is fixedly connected to the inside of the switch body (1), a cylinder (12) is fixedly connected inside the fixing frame (11), a top plate (17) is fixedly connected to the upper end of the fixing frame (11), a fixing column 1 (15) and a fixing column 2 (16) are fixedly connected to one side of the top plate (17), a driving plate (13) is fixedly connected to the output end of the cylinder (12), a middle part of the driving plate (13) is rotatably connected to the fixing column 1 (15), an end of the driving plate (13) is matched with the fixing column 2 (16), and the end of the driving plate (13) is located on one side of the inside of the rotating frame (14).

6. A high current transfer switch isolation padlock structure according to claim 5, characterized in that: A connecting plate (18) is fixedly connected to the lower end of the rotating frame (14), a micro switch (19) is fixedly connected inside the switch body (1), and the connecting plate (18) and the micro switch (19) cooperate with each other.

Images