Dual-power-supply undisturbed rapid switching device

Abstract

The utility model relates to the technical field of switches, in particular to a dual-power-supply undisturbed rapid switching device, which comprises a switch body used for switching power supplies, positioning screws used for fixing leads are arranged at two ends of the switch body, and locking pieces used for preventing the positioning screws from loosening are arranged on one sides of the positioning screws. The locking piece comprises a shell, and the two ends of the shell are connected to the outer portion of the sliding rod in a sliding and sleeving mode. According to the utility model, by rotating the screw body, the screw body drives the disc to move to the conductive copper plate, so that the disc compresses the wire on the conductive copper plate, and the fixed connection of the wire is realized; then a reset spring rebounds to push a limiting block to move towards a positioning groove, the limiting block pushes a positioning plate to move towards the positioning groove through a sliding rod, one side of the positioning plate is inserted into the positioning groove, the disc and the screw body are prevented from rotating, and then the screw body is prevented from loosening and falling off due to external force disturbance in the using process; and the normal use of the switching device is ensured.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, specifically to a dual-power supply disturbance-free fast switching device. Background Technology

[0002] With the advancement of science and technology, industrial production and people's lives place increasingly higher demands on the continuity and reliability of power supply systems. As the load on the power grid increases, the number of line faults is also rising. Therefore, critical users such as airports, fire stations, hospitals, military facilities, and large event venues require dual power supplies (two independent main and backup power sources) to ensure the continuity and reliability of power supply. However, if a suitable power switching switch is not available to ensure reliable switching between the two power sources, a unidirectional dual-power fast switching switch is needed. This switch is a type of electrical device that quickly switches from the main power supply to the backup power supply when the main power supply fails.

[0003] Application No.: CN201521081384.0 "Fast Dual Power Transfer Switch" comprises: a solidified pole housing; an operating mechanism installed within the solidified pole housing; the operating mechanism being connected to an operating controller; the operating mechanism being connected to connecting rod one, or connecting rod two, or both connecting rod one and connecting rod two respectively; connecting rod one being connected to vacuum interrupter one; vacuum interrupter one being electrically connected to power input line one and power output line one respectively; connecting rod two being connected to vacuum interrupter two; vacuum interrupter two being electrically connected to power input line two and power output line two respectively; and an insulating sealant being poured into the solidified pole housing. The above-mentioned fast dual power transfer switch is used for rapid dual power transfer in important locations requiring continuous power supply.

[0004] However, the aforementioned fast dual power transfer switches are generally fixed with bolts when connected to the power supply wires. This can lead to loosening or even detachment due to external disturbances during use, thus affecting the normal operation of the switch. Utility Model Content

[0005] The purpose of this invention is to provide a dual-power supply uninterrupted rapid switching device to prevent the screw body from loosening during use, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dual-power supply disturbance-free fast switching device, comprising a switch body for switching power supplies, wherein both ends of the switch body are provided with positioning screws for fixing wires, and one side of the positioning screw is provided with a locking member to prevent the positioning screw from loosening.

[0007] The locking component includes: a housing, both ends of which are slidably sleeved on the outside of a sliding rod; one end of the sliding rod is fixedly connected to the side of a positioning plate; the outside of the sliding rod is fixedly connected to the bottom of a limiting block; the side of the limiting block is slidably inserted into the wall of a strip-shaped limiting through hole; and the top of the housing is provided in the strip-shaped limiting through hole.

[0008] Preferably, the housing is provided with a return spring inside, and the inner ring of the return spring is slidably sleeved on the outside of the sliding rod.

[0009] Preferably, the positioning screw includes: a screw body, the screw body being fixedly connected to the inner ring of the disc, and the disc having a plurality of positioning grooves equidistantly provided on its side, the groove wall of the positioning groove being movably connected to one side of the positioning plate.

[0010] Preferably, the switch body includes: a mounting plate, the top of both ends of the mounting plate having threaded holes, the wall of the threaded holes being threadedly connected to the side of the screw body.

[0011] Preferably, the bottom of the outer casing is fixedly connected to the top of the mounting plate, and a conductive copper plate is provided on the top of the mounting plate at the position of the positioning threaded hole.

[0012] Preferably, one end of the conductive copper plate is fixedly connected to one side of the clamping plate, the middle position of the mounting plate is rotatably connected to one end of the knife handle, and the other end of the knife handle is fixedly connected to the bottom of the insulating block.

[0013] Preferably, the insulating block has a hole on one side, the top of the mounting plate is fixedly connected to the bottom end of the lead screw, and the side of the lead screw is threadedly connected to the inner ring of the screw sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention rotates the screw body, causing the screw body to move the disc towards the conductive copper plate, thereby pressing the wire tightly onto the conductive copper plate and achieving a fixed connection of the wire. Then, the return spring rebounds and pushes the limiting block towards the positioning groove. The limiting block, in turn, pushes the positioning plate towards the positioning groove through the sliding rod, so that one side of the positioning plate is inserted into the positioning groove. This prevents the disc and the screw body from rotating, thereby preventing the screw body from loosening or falling off due to external disturbances during use, and ensuring the normal operation of the switching device.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the switch body structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the locking component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the positioning screw structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the working state of this utility model.

[0022] In the diagram: 1. Locking component; 11. Positioning plate; 12. Limiting block; 13. Strip-shaped limiting through hole; 14. Housing; 15. Sliding rod; 16. Return spring; 2. Positioning screw; 21. Screw body; 22. Disc; 23. Positioning groove; 3. Switch body; 31. Conductive copper plate; 32. Clamping plate; 33. Knife handle; 34. Insulating block; 35. Hole; 36. Screw sleeve; 37. Threaded hole; 38. Lead screw; 39. Mounting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a dual power supply disturbance-free fast switching device, including: a switch body 3 for switching power supply, with positioning screws 2 for fixing wires at both ends of the switch body 3, and a locking member 1 for preventing the positioning screws 2 from loosening on one side.

[0025] The locking component 1 includes: a housing 14, with both ends of the housing 14 slidably sleeved on the outside of a sliding rod 15; one end of the sliding rod 15 is fixedly connected to the side of a positioning plate 11; the outside of the sliding rod 15 is fixedly connected to the bottom of a limiting block 12; the side of the limiting block 12 is slidably inserted into the wall of a strip-shaped limiting through hole 13; the top of the housing 14 is provided in the strip-shaped limiting through hole 13. A return spring 16 is provided inside the housing 14, with the inner ring of the return spring 16 slidably sleeved on the outside of the sliding rod 15.

[0026] Furthermore, before rotating the screw body 21, the limiting block 12 is pushed away from the positioning groove 23. The limiting block 12 then moves the positioning plate 11 away from the positioning groove 23 through the sliding rod 15, so as to prevent the positioning plate 11 from obstructing the rotation of the disc 22. After the screw body 21 is tightened, the limiting block 12 is released. At this time, the return spring 16 rebounds and pushes the limiting block 12 to move towards the positioning groove 23. The limiting block 12 then pushes the positioning plate 11 towards the positioning groove 23 through the sliding rod 15, so that one side of the positioning plate 11 is inserted into the positioning groove 23, thereby preventing the disc 22 and the screw body 21 from rotating, thus preventing the screw body 21 from loosening and falling off due to external disturbance during use, and ensuring the normal use of the switching device.

[0027] The positioning screw 2 includes a screw body 21, which is externally fixedly connected to the inner ring of the disc 22. The disc 22 has several sets of positioning grooves 23 evenly spaced on its side, and the groove walls of the positioning grooves 23 are movably connected to one side of the positioning plate 11. The switch body 3 includes a mounting plate 39, with threaded holes 37 at the top of both ends of the mounting plate 39. The walls of the threaded holes 37 are threadedly connected to the side of the screw body 21.

[0028] The bottom of the outer casing 14 is fixedly connected to the top of the mounting plate 39, and a conductive copper plate 31 is provided on the top of the mounting plate 39 at the position of the positioning threaded hole 37.

[0029] Furthermore, use a tool to slightly loosen the screw body 21, then wrap the wire around the outside of the screw body 21, with the wire positioned between the disc 22 and the conductive copper plate 31. Rotate the screw body 21, causing the screw body 21 to move the disc 22 toward the conductive copper plate 31, thereby pressing the wire tightly onto the conductive copper plate 31, thus completing the fixing and connection of the wire.

[0030] One end of the conductive copper plate 31 is fixedly connected to one side of the clamping plate 32, and the middle position of the mounting plate 39 is rotatably connected to one end of the knife handle 33. The other end of the knife handle 33 is fixedly connected to the bottom of the insulating block 34. A hole 35 is opened on one side of the insulating block 34. The top of the mounting plate 39 is fixedly connected to the bottom end of the lead screw 38, and the side of the lead screw 38 is threadedly connected to the inner ring of the screw sleeve 36.

[0031] Furthermore, the tool holder 33 is pushed to the clamping plate 32 and they come into contact, thus forming a circuit between the tool holder 33, the clamping plate 32, the conductive copper plate 31, and the wire. Clamping plates 32 are provided on both sides of the tool holder 33, thus forming a single-pole double-throw switch, which can realize dual power supply switching.

[0032] Furthermore, before the tool holder 33 is pushed to the clamping plate 32, the screw sleeve 36 is unscrewed. After the tool holder 33 is pushed to contact the clamping plate 32, the hole 35 on one side of the insulating block 34 is fitted onto the lead screw 38. Then the screw sleeve 36 is threaded onto the lead screw 38. The screw sleeve 36 limits the insulating block 34, which can prevent the tool holder 33 from separating from the clamping plate 32 due to external force disturbance.

[0033] Working principle: In use, slightly loosen the screw body 21 with a tool, then wrap the wire around the outside of the screw body 21, with the wire positioned between the disc 22 and the conductive copper plate 31. Rotate the screw body 21, causing it to move the disc 22 towards the conductive copper plate 31, thus pressing the wire firmly against the plate. Then push the handle 33 to the clamping plate 32 until they contact each other, forming a circuit between the handle 33, clamping plate 32, conductive copper plate 31, and the wire. Clamping plates 32 are located on both sides of the handle 33, forming a single-pole double-throw switch, enabling dual power supply switching.

[0034] Before rotating the screw body 21, the limiting block 12 is pushed away from the positioning groove 23. The limiting block 12 then moves the positioning plate 11 away from the positioning groove 23 through the sliding rod 15, so as to prevent the positioning plate 11 from obstructing the rotation of the disc 22. After the screw body 21 is tightened, the limiting block 12 is released. At this time, the return spring 16 rebounds and pushes the limiting block 12 to move towards the positioning groove 23. The limiting block 12 then pushes the positioning plate 11 towards the positioning groove 23 through the sliding rod 15, so that one side of the positioning plate 11 is inserted into the positioning groove 23, thereby preventing the disc 22 and the screw body 21 from rotating, thus preventing the screw body 21 from loosening and falling off due to external disturbance during use, and ensuring the normal use of the switching device.

[0035] Before the tool holder 33 is pushed to the clamping plate 32, unscrew the threaded sleeve 36. After the tool holder 33 is pushed to contact the clamping plate 32, the hole 35 on one side of the insulating block 34 is fitted onto the lead screw 38. Then, thread the threaded sleeve 36 onto the lead screw 38. The threaded sleeve 36 limits the insulating block 34, which can prevent the tool holder 33 from separating from the clamping plate 32 due to external force disturbance.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-power supply disturbance-free fast switching device, characterized in that, It includes a switch body (3) for switching power supply, and the two ends of the switch body (3) are provided with positioning screws (2) for fixing wires, and one side of the positioning screws (2) is provided with a locking member (1) to prevent the positioning screws (2) from loosening. The locking component (1) includes: a housing (14), the two ends of which are slidably sleeved on the outside of a sliding rod (15), one end of which is fixedly connected to the side of a positioning plate (11), the outside of which is fixedly connected to the bottom of a limiting block (12), the side of which is slidably inserted into the wall of a strip-shaped limiting through hole (13), and the top of the housing (14) is provided in the strip-shaped limiting through hole (13).

2. The dual-power supply disturbance-free fast switching device according to claim 1, characterized in that: The housing (14) is provided with a return spring (16) inside, and the inner ring of the return spring (16) is slidably sleeved on the outside of the sliding rod (15).

3. The dual-power supply disturbance-free fast switching device according to claim 1, characterized in that: The positioning screw (2) includes: a screw body (21), the outside of which is fixedly connected to the inner ring of the disc (22), and the side of the disc (22) is provided with a plurality of positioning grooves (23) at equal intervals, and the groove wall of the positioning groove (23) is movably connected to one side of the positioning plate (11).

4. The dual-power supply disturbance-free fast switching device according to claim 3, characterized in that: The switch body (3) includes a mounting plate (39), and threaded holes (37) are provided at the top of both ends of the mounting plate (39). The hole wall of the threaded hole (37) is threaded to the side of the screw body (21).

5. The dual-power supply disturbance-free fast switching device according to claim 4, characterized in that: The bottom of the outer casing (14) is fixedly connected to the top of the mounting plate (39), and the top of the mounting plate (39) is provided with a conductive copper plate (31) at the position of the positioning threaded hole (37).

6. The dual-power supply disturbance-free fast switching device according to claim 5, characterized in that: One end of the conductive copper plate (31) is fixedly connected to one side of the clamping plate (32), the middle position of the mounting plate (39) is rotatably connected to one end of the knife handle (33), and the other end of the knife handle (33) is fixedly connected to the bottom of the insulating block (34).

7. The dual-power supply disturbance-free fast switching device according to claim 6, characterized in that: The insulating block (34) has a hole (35) on one side, the top of the mounting plate (39) is fixedly connected to the bottom end of the lead screw (38), and the side of the lead screw (38) is threadedly connected to the inner ring of the screw sleeve (36).

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