Three-section type conversion machine for dual-power change-over switch

Abstract

The utility model relates to the technical field of switches, in particular to a three-section conversion machine for a dual-power change-over switch, which comprises a fixed base and is characterized in that a protective shell is connected to the end face of the fixed base, and a driving motor is connected to the end face of the fixed base and located in an inner cavity of the protective shell. According to the utility model, the switching structure and the driving motor are arranged in the switching mechanism of the dual-power change-over switch, so that the switching handle and the driving motor in the switching structure are utilized to pass through the transmission structure, and then the design of common switching on, breaking and standby switching on is realized; according to use requirements, operation of common closing, breaking and standby closing can be manually or automatically realized, so that the device is more convenient to use, and the problem that common closing, breaking and standby closing cannot be manually or automatically realized is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a three-stage converter for a dual power supply conversion switch. Background Art

[0002] A dual source transfer switch, also known as a dual source transfer switching device, is an electrical switch that switches the load between two power sources. Some dual source transfer switches are manual, in which the operator achieves the transfer by throwing the switch, while others are automatic and are triggered when they sense that one of the power sources has lost or gained power. Dual source transfer switches are often installed where a backup generator is located so that if the public power fails, the generator can provide temporary power.

[0003] The current dual power transfer switch can only have one way of driving the switch, so that during the use of the device, the common closing, disconnecting, and standby closing operations cannot be manually or automatically realized. Therefore, the device is not very convenient when in use. Therefore, a three-stage converter for a dual power transfer switch is needed to improve the above problem. Utility Model Content

[0004] In order to solve the problem that the power conversion switch can realize manual shifting and automatic shifting, the utility model provides a three-stage converter for a dual power conversion switch to solve the above problem.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A three-stage converter for a dual power conversion switch, comprising a fixed base, characterized in that: a protective shell is connected to the end surface of the fixed base, a drive motor is connected to the end surface of the fixed base and located in the inner cavity of the protective shell, and a drive end of the drive motor is connected to a conversion structure through a coupling;

[0007] The conversion structure includes a front fixed bracket, which is connected to the end surface of the fixed base, an adjusting rod is connected to the driving end of the driving motor in the inner cavity of the front fixed bracket through a coupling, the other end of the adjusting rod is connected to an adjusting paddle, an energy storage torsion spring is connected to the side wall of the adjusting rod and located on one side of the adjusting paddle, a handle connecting plate is arranged on the end surface of the adjusting paddle, a conversion handle is connected to the handle connecting plate through a connector, a limited fixing plate is arranged on the left side wall of the front fixed bracket, a fixed connecting plate is connected to the left side wall of the limited fixing plate, and the inner wall of the limited fixing plate A movable paddle is connected in the cavity and located on one side of the adjusting paddle, a fixed paddle is connected in the inner cavity of the movable paddle, a rotating rod is connected on the left side wall of the fixed paddle, and hanging ears are symmetrically arranged on the side walls of the adjusting paddle and the movable paddle, wherein the hanging ears on the side walls of the adjusting paddle and the movable paddle are staggered in pairs, and a paddle cam is correspondingly arranged on the lower half of the adjusting paddle and the lower end of the movable paddle, and a connecting groove is arranged in the inner cavity of the limit fixing plate and corresponding to the movable paddle, wherein a common closing gear slot, a disconnecting gear slot, and a spare closing gear slot are correspondingly arranged in the connecting groove and on one end corresponding to the movable paddle;

[0008] As a preferred solution of the utility model, a connecting hole is arranged on the side wall of the front fixing bracket and corresponds to the adjusting rotating rod, wherein the adjusting rotating rod and the connecting hole are matched in a clearance fit.

[0009] As a preferred solution of the utility model, a connecting hole is provided on the adjusting paddle and corresponds to the adjusting rotating rod, wherein the adjusting rotating rod and the connecting hole are matched in a clearance fit.

[0010] As a preferred solution of the utility model, the other end of the rotating rod is connected to a power switch.

[0011] As a preferred solution of the utility model, a limiting groove is provided in the inner cavity of the movable paddle and corresponds to the fixed paddle, wherein the fixed paddle and the limiting groove are matched in a clearance fit.

[0012] As a preferred solution of the utility model, one end of the energy storage torsion spring is connected to the side wall of the front fixed bracket, and the other end of the energy storage torsion spring is clamped on the hanging ear of the side wall of the movable paddle.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, a conversion structure and a driving motor are arranged in the conversion mechanism of the dual power conversion switch, so that the conversion handle in the conversion structure and the driving motor are utilized through the transmission structure to realize the design of common closing, disconnecting and standby closing. Therefore, in the conversion mechanism process of the dual power conversion switch, the common closing, disconnecting and standby closing operations can be manually or automatically realized according to the use requirements, making the device more convenient during use, thereby solving the problem that the common closing, disconnecting and standby closing cannot be realized manually or automatically. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front and side structures of the utility model;

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of some structures;

[0017] Figure 3 It is a structural schematic diagram of the conversion structure of the utility model;

[0018] Figure 4 For this utility model Figure 3 A partial structural diagram of

[0019] Figure 5 For this utility model Figure 3 Schematic diagram of the explosion structure;

[0020] Figure 6 For this utility model Figure 5 Schematic diagram of the visual measurement structure;

[0021] Figure 7 For this utility model Figure 5 Schematic diagram of part of the structure.

[0022] In the figure: 1. fixed base; 2. protective shell; 3. drive motor; 4. conversion structure; 401. front fixed bracket; 402. adjusting rod; 403. adjusting paddle; 404. energy storage torsion spring; 405. handle connecting plate; 406. conversion handle; 407. limit fixing plate; 408. fixed connecting plate; 409. moving paddle; 410. fixed paddle; 411. rotating rod; 412. hanging ear; 413. paddle cam; 414. common closing gear slot; 415. disconnecting gear slot; 416. spare closing gear slot; 417. power switch. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] For example, please refer to Figure 1-7 , the utility model provides a technical solution:

[0025] A three-stage converter for a dual power conversion switch, comprising a fixed base 1, characterized in that: a protective shell 2 is connected to the end surface of the fixed base 1, a drive motor 3 is connected to the end surface of the fixed base 1 and located in the inner cavity of the protective shell 2, and a drive end of the drive motor 3 is connected to a conversion structure 4 through a coupling;

[0026] In this embodiment, reference Figure 1 , Figure 2 , Figure 5 and Figure 7 The conversion structure 4 includes a front fixed bracket 401, which is connected to the end surface of the fixed base 1. An adjusting rod 402 is connected to the driving end of the driving motor 3 in the inner cavity of the front fixed bracket 401 through a coupling. The other end of the adjusting rod 402 is connected to an adjusting paddle 403. An energy storage torsion spring 404 is connected to the side wall of the adjusting rod 402 and one side of the adjusting paddle 403. A handle connecting plate 405 is provided on the end surface of the adjusting paddle 403. A conversion handle 406 is connected to the handle connecting plate 405 through a connector. A limited fixing plate 407 is provided on the left side wall of the front fixed bracket 401. A fixed connecting plate 408 is connected to the left side wall of the limited fixing plate 407. A movable paddle 409 is connected to one side of the adjusting paddle 403, a fixed paddle 410 is connected in the inner cavity of the movable paddle 409, a rotating rod 411 is connected to the left wall of the fixed paddle 410, and hanging ears 412 are symmetrically arranged on the side walls of the adjusting paddle 403 and the movable paddle 409, wherein the hanging ears on the side walls of the adjusting paddle 403 and the movable paddle 409 are staggered in pairs, and a paddle cam 413 is arranged correspondingly on the lower half of the adjusting paddle 403 and the lower end of the movable paddle 409, and a connecting groove is arranged in the inner cavity of the limiting fixing plate 407 and corresponding to the movable paddle 409, wherein a common closing gear slot 414, a disconnecting gear slot 415, and a standby closing gear slot 416 are correspondingly arranged in the connecting slot and at one end corresponding to the movable paddle 409;

[0027] Based on the above structure and the connection relationship of the above structure, during use, when manual driving is required, the conversion handle 406 is manually rotated. When the conversion handle 406 is rotated, the movable paddle 409 is driven to rotate. When the movable paddle 409 is rotated, the movable paddle 409 is driven to move on the side wall of the fixed paddle 410 while also driving the fixed paddle 410 to rotate. When the movable paddle 409 moves, under the action of the energy storage torsion spring 404, the energy storage torsion spring 404 not only plays an energy storage role, but also provides braking force, so that one end of the movable paddle 409 is fixed in the gear slot of the inner cavity of the limit fixing plate 407. At the same time, the angle of the pins on both sides of the energy storage torsion spring 404 determines the magnitude of the braking force, thereby realizing the mutual cooperation between the movable paddle 409 and the common closing gear slot 414, the disconnecting gear slot 415, and the standby closing gear slot 416, thereby realizing the operations of common closing, disconnecting, and standby closing;

[0028] When automatic gear shifting is required, the driving motor 3 is started through the controller to rotate the driving end of the driving motor 3. When the driving end of the driving motor 3 rotates, the adjusting rotating rod 402 and the adjusting paddle 403 are driven to rotate. When the adjusting paddle 403 rotates, when the moving paddle 409 rotates, the moving paddle 409 is driven to move on the side wall of the fixed paddle 410 while also driving the fixed paddle 410 to rotate. When the moving paddle 409 moves, under the action of the energy storage torsion spring 404, one end of the moving paddle 409 is fixed in the gear slot of the inner cavity of the limit fixing plate 407, thereby realizing automatic switch gear shifting.

[0029] Furthermore, a connecting hole is provided on the side wall of the front fixed bracket 401 and corresponds to the adjusting rotating rod 402, wherein the adjusting rotating rod 402 and the connecting hole are matched in a clearance fit; a connecting hole is provided on the adjusting paddle 403 and corresponds to the adjusting rotating rod 402, wherein the adjusting rotating rod 402 and the connecting hole are matched in a clearance fit; a power switch 417 is connected to the other end of the rotating rod 411; a limiting groove is provided in the inner cavity of the movable paddle 409 and corresponds to the fixed paddle 410, wherein the fixed paddle 410 and the limiting groove are matched in a clearance fit; one end of the energy storage torsion spring 404 is connected to the side wall of the front fixed bracket 401, and the other end of the energy storage torsion spring 404 is clamped on the hanging ear 412 on the side wall of the movable paddle 409, so that the device is more convenient when in use.

[0030] The working process of the utility model is as follows: when the three-stage converter for the dual power conversion switch is in use, when it is necessary to open the gate by manual drive, the conversion handle 406 is manually rotated. When the conversion handle 406 is rotated, the adjusting paddle 403 is driven to rotate. Because the moving paddle 409 is stuck in the slot and cannot rotate, and one end of the energy storage torsion spring 404 is fixed with the moving paddle 409 hanging ear 412, when the adjusting paddle 403 is rotated, it will drive the energy storage torsion spring 404 to store energy. When the paddle 403 continues to rotate to the opening position, the movable paddle 409 moves downward and out of the slot under the action of the cam at the bottom of the adjusting paddle 403, completing the opening action. Under the action of the torsion spring energy release, the movable paddle 409 instantly turns to the position of the common closing gear slot 414. At this time, the movable paddle 409 is also pushed upward by the pins at both ends of the energy storage torsion spring 404, so that the movable paddle 409 is firmly stopped in the common closing gear slot 414 of the inner cavity of the limit fixing plate 407. The energy storage torsion spring 404 not only plays an energy storage role, but also provides braking force. At the same time, the magnitude of the braking force is determined by the angle of the pins on both sides of the energy storage torsion spring 404. While the movable paddle 409 moves on the side wall of the fixed paddle 410, it also drives the fixed paddle 410 to rotate, thereby realizing the common closing of the manual switch. When manual common closing or standby closing is required, just turn the handle 406 in the opposite direction. Its operating principle is the same as that of opening.

[0031] When automatic gear shifting is required, the controller starts the drive motor 3, so that the drive end of the drive motor 3 rotates. When the drive end of the drive motor 3 rotates, the adjusting rod 402 and the adjusting paddle 403 are driven to rotate. When the adjusting paddle 403 rotates, the moving paddle 409 is stuck in the slot and cannot rotate, and one end of the energy storage torsion spring 404 is fixed with the moving paddle 409 hanging ear 412. When the adjusting paddle 403 rotates, it will drive the energy storage torsion spring 404 to store energy. When the adjusting paddle 403 continues to rotate to the position of the standby closing gear slot 416, the moving paddle 409 moves downward and out of the slot under the action of the cam at the bottom of the adjusting paddle 403, completing the disengagement action. Under the action of the torsion spring energy release, the moving paddle 409 instantly turns to the position of the standby closing gear slot 416. At this time, the moving paddle 409 is also pushed upward by the pins at both ends of the energy storage torsion spring 404, so that the moving paddle 409 is firmly stopped in the gear slot of the inner cavity of the limit fixing plate 407. The energy storage torsion spring 404 not only plays an energy storage role, but also provides braking force. At the same time, the angle of the pins on both sides of the energy storage torsion spring 404 determines the magnitude of the braking force. While the moving paddle 409 moves on the side wall of the fixed paddle 410, it also drives the fixed paddle 410 to rotate, thereby realizing automatic switch shifting.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-stage converter for a dual power switch, comprising a fixed base (1), characterized in that: A protective shell (2) is connected to the end surface of the fixed base (1), a drive motor (3) is connected to the end surface of the fixed base (1) and located in the inner cavity of the protective shell (2), and a drive end of the drive motor (3) is connected to a conversion structure (4) via a coupling; The conversion structure (4) comprises a front fixed bracket (401), the front fixed bracket (401) is connected to the end surface of the fixed base (1), an adjusting rotating rod (402) is connected in the inner cavity of the front fixed bracket (401) and located at the driving end of the driving motor (3) through a coupling, the other end of the adjusting rotating rod (402) is connected to an adjusting paddle (403), an energy storage torsion spring (404) is connected on the side wall of the adjusting rotating rod (402) and located on one side of the adjusting paddle (403), a handle connecting plate (405) is arranged on the end surface of the adjusting paddle (403), a conversion handle (406) is connected to the handle connecting plate (405) through a connector, a limited position fixing plate (407) is arranged on the left side wall of the front fixed bracket (401), a fixed connecting plate (408) is connected to the left side wall of the limited position fixing plate (407), the inner wall of the limited position fixing plate (407) is provided with a fixed connecting plate (408), and the inner wall of the limited position fixing plate (407) is provided with a fixed connecting plate (408). A movable paddle (409) is connected to the cavity and located on one side of the adjusting paddle (403); a fixed paddle (410) is connected to the inner cavity of the movable paddle (409); a rotating rod (411) is connected to the left side wall of the fixed paddle (410); and hanging ears (412) are symmetrically arranged on the side walls of the adjusting paddle (403) and the movable paddle (409); The ears are arranged in pairs, and a paddle cam (413) is arranged correspondingly at the lower half of the adjusting paddle (403) and the lower end of the movable paddle (409), and a connecting groove is arranged in the inner cavity of the limiting fixing plate (407) and correspondingly at the movable paddle (409), wherein a common closing gear slot (414), a disconnecting gear slot (415), and a standby closing gear slot (416) are arranged correspondingly at one end of the connecting groove and corresponding to the movable paddle (409).

2. A three-stage converter for a dual power conversion switch according to claim 1, characterized in that: A connection hole is provided on the side wall of the front fixing bracket (401) and corresponds to the adjusting rotating rod (402), wherein the adjusting rotating rod (402) and the connection hole are matched in a clearance fit.

3. A three-stage converter for a dual power conversion switch according to claim 1, characterized in that: A connecting hole is provided on the adjusting paddle (403) and corresponds to the adjusting rotating rod (402), wherein the adjusting rotating rod (402) and the connecting hole are matched in a clearance fit.

4. A three-stage converter for a dual power conversion switch according to claim 1, characterized in that: The other end of the rotating rod (411) is connected to a power switch (417).

5. A three-stage converter for a dual power conversion switch according to claim 1, characterized in that: A limiting groove is provided in the inner cavity of the movable paddle (409) and corresponds to the fixed paddle (410), wherein the fixed paddle (410) and the limiting groove are matched in a clearance fit.

6. A three-stage converter for a dual power conversion switch according to claim 1, characterized in that: One end of the energy storage torsion spring (404) is connected to the side wall of the front fixed bracket (401), and the other end of the energy storage torsion spring (404) is clamped on the hanging ear (412) of the side wall of the movable paddle (409).

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