Dual-power change-over switch

Abstract

The utility model discloses a dual power supply change-over switch, and specifically relates to the dual power supply change-over switch technology field, the dual power supply change-over switch comprises a switch body, two ends of the side wall of the switch body are symmetrically provided with microswitches, and the side wall of the switch body is fixedly provided with a housing between the two microswitches. According to the utility model, the movable column is arranged, the transmission assembly is arranged between the movable column and the fixed handle, and the switch contacts at the two ends of the movable column can be respectively controlled to abut against the two microswitches by positively and negatively screwing the fixed handle, so that the switching between the two power supplies can be quickly realized; according to the utility model, the movable column can be locked after the switch contact abuts against the microswitches, so that the contact conversion of the switch contact between the two microswitches can be efficiently and stably realized, the transmission is stable and reliable, the stability is high, the switch contact can be prevented from loosening due to accidental action, and the stability and the safety of power supply switching are greatly ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of double - power conversion switches, and particularly relates to a double - power conversion switch. Background Technique

[0002] A double - power switching switch is a switch that automatically switches to another power source in case of power failure. Generally, double - power switching switches are widely used in important places where power failure is not allowed, such as high - rise buildings, communities, hospitals, airports, docks, fire protection, metallurgy, chemical industry, and textile. Especially when applied in the field of military facilities, in order to avoid power failure of military equipment, a double - power conversion switch is needed. When one power supply fails, another power supply can be selected to put into operation.

[0003] At present, during the use of double - power conversion switches, the contact moves between two micro - switches. When the contact touches one end of the micro - switch, the circuit is connected, and the other end is disconnected, and vice versa, to achieve the switching between two power sources. However, in actual use, the contact conversion between contact switches mostly uses the way of toggling with a lever. Not only is the transmission form single and the stability poor, but also it is difficult to effectively ensure firmness after contact connection. It is easy to loosen due to accidental effects, resulting in unstable switching and affecting safety. Content of the Utility Model

[0004] The purpose of the utility model is to provide a double - power conversion switch. By setting a movable movable column, and a transmission component is arranged between the movable column and the fixed handle. By screwing the fixed handle forward and backward, the switch contacts at both ends of the movable column can be respectively controlled to contact two micro - switches, so as to quickly realize the switching between two power sources. At the same time, by setting locking mechanisms at both ends of the movable column, the movable column can be locked after the switch contacts touch the micro - switches, and the locking can be released by pressing the positioning column before screwing the fixed handle. Thus, the firmness after contact connection can be greatly ensured, and then the contact conversion of the switch contacts between two micro - switches can be realized efficiently and stably. Not only is the transmission stable and reliable, but also the firmness is strong, which can avoid the loosening of the switch contacts due to accidental effects, and greatly ensure the stability and safety of power supply switching, so as to solve the above - mentioned deficiencies in the technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solution: A double - power conversion switch, comprising:

[0006] A switch body, micro - switches are symmetrically arranged at both ends of the side wall of the switch body, and a housing is fixed between the two micro - switches on the side wall of the switch body. A contact piece is connected to the inside of the micro - switch;

[0007] The movable column is movably arranged at the inner top end of the housing, and switch contacts are fixed at both ends of the movable column. Through holes facing the switch contacts are formed on both sides of the top end of the housing, and a connecting shaft is rotatably connected to the inner bottom end of the housing through a bearing. A transmission assembly is arranged between the connecting shaft and the movable column, and a locking mechanism is arranged between the end of the movable column and the housing.

[0008] Preferably, the transmission assembly includes a sector gear disk fixed at one end of the connecting shaft, and the other end of the connecting shaft extends outside the housing and is connected with a fixed handle. A gear is rotatably connected between the movable column and the sector gear disk inside the housing through a rotating shaft. A toothed plate is fixed at the bottom side of the movable column, and the top end and the bottom end of the gear are respectively meshed with the toothed plate and the sector gear disk.

[0009] Preferably, the locking mechanism includes cavity grooves symmetrically formed at both ends of the movable column. A first spring is fixed at the inner top end of the cavity groove. The top end of the first spring is connected with a positioning plate. A positioning column is fixed at the top of the positioning plate, and the top end of the positioning column extends outside the movable column. Positioning holes matching the positioning column are formed at both ends of the top of the housing.

[0010] Preferably, a T-shaped block is fixed on the side wall of the movable column, and a limiting groove matching the T-shaped block is formed inside the housing.

[0011] Preferably, two sliding cavities are symmetrically formed at the inner bottom side of the housing. A second spring is fixed at one end of each of the two sliding cavities. One end of the second spring is connected with a sliding block. Connecting arms are hinged between the two sliding blocks and the sector gear disk.

[0012] Preferably, a guide rod is fixed inside the sliding cavity, and the guide rod penetrates between the second spring and the sliding block.

[0013] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0014] By arranging the movable movable column and providing a transmission assembly between the movable column and the fixed handle, by screwing the fixed handle forward and backward, the switch contacts at both ends of the movable column can be respectively controlled to abut against two micro switches, so as to quickly realize the switching between two power supplies. At the same time, by arranging a locking mechanism at both ends of the movable column, the movable column can be locked after the switch contacts abut against the micro switches, and the locking can be released by pressing the positioning column before screwing the fixed handle, so as to greatly ensure the stability after contact connection, and further realize the contact conversion of the switch contacts between the two micro switches efficiently and stably. Not only is the transmission stable and reliable, but also the stability is strong, which can avoid the loosening of the switch contacts caused by accidental effects, and greatly ensure the stability and safety of power supply switching.

[0015] By setting up structures such as connecting arms, sliders, and sliding cavities, when the sector gear disc rotates, it can effectively support and limit the sector gear disc, thereby greatly ensuring the stability when the fixed handle is turned. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 Schematic diagram of the internal structure of the housing of the present utility model;

[0019] Figure 3 One of the three-dimensional structure diagrams of the housing of the present utility model;

[0020] Figure 4 Another three-dimensional structure diagram of the housing of the present utility model;

[0021] Figure 5 Three-dimensional structure diagram of the movable column of the present utility model;

[0022] Figure 6 Longitudinal sectional view of the movable column of the present utility model.

[0023] Explanation of the reference numerals in the drawings:

[0024] 1. Switch body; 2. Housing; 3. Fixed handle; 4. Microswitch; 5. Contact piece; 6. Connecting shaft; 7. Sector gear disc; 8. Gear; 9. Movable column; 10. Tooth plate; 11. T-shaped block; 12. Limiting groove; 13. Switch contact; 14. Cavity groove; 15. First spring; 16. Positioning plate; 17. Positioning column; 18. Positioning hole; 19. Through hole; 20. Sliding cavity; 21. Second spring; 22. Slider; 23. Connecting arm; 24. Guide rod. Detailed Description of the Embodiments

[0025] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the drawings.

[0026] The present utility model provides a dual-power conversion switch as Figures 1-6 shown, including:

[0027] Switch body 1, microswitches 4 are symmetrically arranged at both ends of the side wall of the switch body 1, and a housing 2 is fixed on the side wall of the switch body 1 between the two microswitches 4. A contact piece 5 is connected to the inner side of the microswitch 4;

[0028] Moving column 9, the moving column 9 is movably arranged at the inner top end of the housing 2, and switch contacts 13 are fixed at both ends of the moving column 9. Through holes 19 facing the switch contacts 13 are opened on both sides of the top end of the housing 2, and a connecting shaft 6 is rotatably connected to the inner bottom end of the housing 2 through a bearing. A transmission assembly is arranged between the connecting shaft 6 and the moving column 9, and a locking mechanism is arranged between the end of the moving column 9 and the housing 2.

[0029] A T-shaped block 11 is fixed on the side wall of the moving column 9, and a limiting groove 12 matching the T-shaped block 11 is opened on the inner side of the housing 2. By driving the T-shaped block 11 to slide in the limiting groove 12 through the moving column 9, the stability of the moving column 9 during movement can be greatly ensured.

[0030] The transmission assembly includes a sector gear disc 7 fixed at one end of the connecting shaft 6, and the other end of the connecting shaft 6 extends outside the housing 2 and is connected with a fixed handle 3. A gear 8 is rotatably connected between the moving column 9 and the sector gear disc 7 inside the housing 2 through a rotating shaft. A toothed plate 10 is fixed on the bottom side of the moving column 9, and the top end and the bottom end of the gear 8 are respectively meshed with the toothed plate 10 and the sector gear disc 7.

[0031] The locking mechanism includes cavity grooves 14 symmetrically opened at both ends of the moving column 9. A first spring 15 is fixed at the inner top end of the cavity groove 14. The top end of the first spring 15 is connected with a positioning plate 16. A positioning column 17 is fixed on the top of the positioning plate 16, and the top end of the positioning column 17 extends outside the moving column 9. Positioning holes 18 matching the positioning columns 17 are opened at both ends of the top of the housing 2.

[0032] During use, the fixed handle 3 can be rotated to drive the connecting shaft 6 to rotate, and then the connecting shaft 6 drives the sector gear disc 7 to rotate, so that the sector gear disc 7 drives the gear 8 to rotate. Then the gear 8 drives the toothed plate 10 to move, so that the toothed plate 10 drives the moving column 9 to move. Then the moving column 9 drives the switch contact 13 to move. By rotating the fixed handle 3 forward and backward, the switch contacts 13 at both ends of the moving column 9 can be respectively controlled to pass through the left and right through holes 19. After the switch contact 13 passes through the through hole 19, it can be in contact with the contact piece 5 and connected to the microswitch 4 to realize the electrical connection. By moving and contacting the two switch contacts 13 between the two microswitches 4 respectively, the switching between two power sources can be realized;

[0033] Meanwhile, by setting the locking mechanism, during use, the positioning post 17 in the positioning hole 18 can be pressed, so that the positioning post 17 drives the positioning plate 16 to extrude the first spring 15. Then, the positioning post 17 withdraws from the positioning hole 18 and retracts into the cavity 14 to release the locking of the movable post 9, so as to twist the fixed handle 3 to control the movement of the movable post 9. And after the switch contact 13 at the end of the movable post 9 moves to the contact position, under the rebound of the first spring 15, the positioning post 17 can be reset and inserted into the upper positioning hole 18, and then the movable post 9 can be locked again, thus greatly ensuring the stability after contact connection and effectively preventing the switch contact 13 from loosening.

[0034] In summary, with the joint cooperation of the above structures, the contact conversion of the switch contact 13 between the two micro switches 4 can be realized efficiently and stably. Not only is the transmission stable and reliable, but also the stability is strong, which can avoid the loosening of the switch contact 13 caused by accidental effects, and greatly ensure the stability and safety of power supply switching.

[0035] In a specific embodiment of the present invention, two sliding cavities 20 are symmetrically opened on the inner bottom side of the housing 2. At one end of the interiors of the two sliding cavities 20, second springs 21 are fixed. One end of each second spring 21 is connected to a slider 22. Connecting arms 23 are hinged between the two sliders 22 and the sector gear disk 7.

[0036] A guide rod 24 is fixed inside the sliding cavity 20, and the guide rod 24 passes between the second spring 21 and the slider 22. The guide rod 24 can ensure the stability of the movement of the slider 22 and the second spring 21.

[0037] When the sector gear disk 7 rotates, the sector gear disk 7 can drive the connecting arms 23 on both sides to move respectively, so that the connecting arms 23 drive the sliders 22 to slide in the sliding cavities 20, and the sliders 22 drive the second springs 21 to stretch and deform. Under the action of this structure, the sector gear disk 7 can be effectively supported and limited, and thus the stability when the fixed handle 3 is twisted is greatly ensured.

[0038] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A dual power conversion switch, characterized in that, Comprising: A switch body (1), micro switches (4) are symmetrically arranged at both ends of the side wall of the switch body (1), and a housing (2) is fixed between the two micro switches (4) on the side wall of the switch body (1). A contact piece (5) is connected to the inner side of the micro switch (4); A movable column (9), the movable column (9) is movably arranged at the inner top end of the housing (2), and switch contacts (13) are fixed at both ends of the movable column (9). Through holes (19) facing the switch contacts (13) are opened on both sides of the top end of the housing (2), and a connecting shaft (6) is rotatably connected to the inner bottom end of the housing (2) through a bearing. A transmission assembly is arranged between the connecting shaft (6) and the movable column (9), and a locking mechanism is arranged between the end of the movable column (9) and the housing (2).

2. The double power supply conversion switch according to claim 1, characterized in that: The transmission assembly includes a sector gear disk (7) fixed at one end of the connecting shaft (6), and the other end of the connecting shaft (6) extends outside the housing (2) and is connected with a fixed handle (3). A gear (8) is rotatably connected between the movable column (9) and the sector gear disk (7) inside the housing (2) through a rotating shaft. A toothed plate (10) is fixed to the bottom side of the movable column (9), and the top and bottom ends of the gear (8) are respectively engaged with the toothed plate (10) and the sector gear disk (7).

3. A dual power conversion switch according to claim 1, characterized in that: The locking mechanism includes cavity grooves (14) symmetrically opened at both ends of the movable column (9). A first spring (15) is fixed to the inner top end of the cavity groove (14). The top end of the first spring (15) is connected with a positioning plate (16). A positioning column (17) is fixed to the top of the positioning plate (16), and the top end of the positioning column (17) extends outside the movable column (9). Positioning holes (18) matching the positioning columns (17) are opened at both ends of the top of the housing (2).

4. A dual power supply transfer switch according to claim 1, characterized in that: A T-shaped block (11) is fixed to the side wall of the movable column (9), and a limiting groove (12) matching the T-shaped block (11) is opened on the inner side of the housing (2).

5. A dual power conversion switch according to claim 2, characterized in that: Two sliding cavities (20) are symmetrically opened at the inner bottom side of the housing (2). A second spring (21) is fixed to one end of each of the two sliding cavities (20). One end of the second spring (21) is connected with a slider (22). Connecting arms (23) are hinged between the two sliders (22) and the sector gear disk (7).

6. A dual-power conversion switch according to claim 5, characterized in that: A guide rod (24) is fixed inside the sliding cavity (20), and the guide rod (24) passes through the second spring (21) and the slider (22).

Images