Direct-current dual-power-supply switching device

Abstract

The utility model discloses a DC dual power supply switching device, which relates to the technical field of electric power supplies, and comprises a box body, one side of the box body is hinged with a box door, a switcher body is arranged in the box body, the switcher body is provided with a frequently-used power supply switch and a standby power supply switch, the standby power supply switch is rotatably connected with a deflector rod, and the deflector rod is connected with the box door. A push plate is arranged in the box door, the push plate is matched with the deflector rod in an abutting mode, a rack is vertically connected in the box door in a sliding mode, the push rod is fixedly connected with the rack, a worm and a worm gear are rotatably connected in the box door, the worm gear is coaxially and fixedly connected with a gear through a connecting rod, and a driving piece is arranged on one side of the box door. According to the direct-current dual-power-supply switching device, the worm is rotated through the driving piece, the worm drives the worm wheel to rotate, the worm wheel drives the gear to rotate through the connecting rod, and the gear is meshed with the transmission rack, so that the push plate moves upwards to push the deflector rod on the standby power supply switch; a worker can unlock the box door without using a key and can directly start the standby power supply in time outside the box door.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power supply, in particular to a direct current dual power supply switching device. Background Art

[0002] The DC dual power switching device can manually switch between the normal power supply and the backup power supply as needed to ensure the reliability and continuity of power supply. It is widely used in important places that require uninterrupted power supply, such as high-rise buildings, post and telecommunications, industrial and mining enterprises, and shipping. When the backup power supply needs to be enabled due to a circuit failure or a sudden power outage, the staff needs to go to the computer room where the DC dual power switching device is located. Then the staff uses the correct key to open the door of the chassis, and then manually switches to connect the backup power supply, so that the power can be used normally. However, when a circuit failure or a sudden power outage occurs at night and the backup power supply needs to be enabled, there is no light source in the computer room at this time. After entering the computer room, the staff cannot quickly open the door of the chassis, which affects the timely activation of the backup power supply. Utility Model Content

[0003] The purpose of the utility model is to provide a DC dual power supply switching device to solve the deficiencies in the above-mentioned prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: the DC dual power switching device includes a box body, a box door is hinged on one side of the box body, a switch body is arranged in the box body, a normal power switch and a backup power switch are arranged on the switch body, a lever is rotatably connected to the backup power switch, a rack is vertically slidably connected in the box door, a push plate is fixedly connected to one side of the rack, the push plate abuts against the lever, a worm and a worm wheel meshing with the worm are rotatably connected in the box door, one end of the worm wheel is coaxially fixedly connected to a gear meshing with the rack through a connecting rod, and a driving member for driving the worm to rotate is provided on the side of the box door away from the switch body.

[0005] Furthermore, the driving member includes a crank, one end of which is coaxially fixedly connected to one end of the worm.

[0006] Furthermore, a non-slip sleeve is sleeved on the crank handle.

[0007] Furthermore, a slide groove is vertically provided on one side of the box door close to the switch body, a guide rod is vertically provided in the slide groove, and the rack is slidably sleeved on the guide rod.

[0008] Furthermore, an air outlet and an air inlet are respectively provided at the top and the bottom of the box body, and an exhaust fan and a suction fan are respectively provided in the air outlet and the air inlet.

[0009] Furthermore, a filter is provided on the inner wall of the air outlet and the air inlet.

[0010] Furthermore, a plurality of mounting blocks are fixedly connected to the box body, and each mounting block is provided with a threaded hole.

[0011] Furthermore, a handle is provided on a side of the box door away from the switch body.

[0012] Compared with the prior art, the utility model provides the following beneficial effects: when a circuit failure occurs at night and the common power supply is cut off, the worm is rotated by the driving member, the worm drives the worm wheel to rotate, the worm wheel drives the gear to rotate through the connecting rod, the gear meshes with the transmission rack, so that the push plate moves upward to push the lever on the backup power switch, so that the staff does not need to unlock the box door with a key and can directly enable the backup power supply in time outside the box door, which is not only convenient to enable and switch, but also safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0015] Figure 2 A front view of the overall structure provided by an embodiment of the utility model;

[0016] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0017] Figure 4 for Figure 2 Sectional view at the middle BB;

[0018] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0019] Figure 6 A schematic diagram of a local structure provided for an embodiment of the utility model.

[0020] Explanation of the accompanying reference numerals: 1. Box body; 2. Box door; 3. Mounting block; 4. Handle; 5. Crank; 6. Filter; 7. Anti-slip cover; 8. Exhaust fan; 9. Switcher body; 10. Standby power switch; 11. Lever; 12. Push plate; 13. Slide groove; 14. Guide rod; 15. Rack; 16. Gear; 17. Normal power switch; 18. Connecting rod; 19. Worm gear; 20. Worm; 21. Exhaust fan. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] See also Figure 1-6 A technical solution provided by an embodiment of the utility model: the DC dual power switching device includes a box body 1, a box door 2 is hinged on one side of the box body 1, a switch body 9 is arranged in the box body 1, a common power switch 17 and a backup power switch 10 are arranged on the switch body 9, a lever 11 is rotatably connected to the backup power switch 10, a rack 15 is vertically slidably connected in the box door 2, a push plate 12 is fixedly connected to one side of the rack 15, the push plate 12 is abutted against the lever 11, a worm 20 and a worm wheel 19 meshing with the worm 20 are rotatably connected in the box door 2, one end of the worm wheel 19 is coaxially fixedly connected to a gear 16 meshing with the rack 15 through a connecting rod 18, and a driving member for driving the worm 20 to rotate is provided on the side of the box door 2 away from the switch body 9.

[0023] As a preferred technical solution, the driving member includes a crank 5, one end of which is coaxially fixedly connected to one end of the worm 20. Specifically, the crank 5 can facilitate the rotation of the worm 20, solving the problem that the worm 20 of the device is difficult to rotate. The setting of the crank 5 can be operated more labor-savingly, which brings convenience to some operators with less strength, and can also drag and open the box door 2.

[0024] As a preferred technical solution, an anti-slip sleeve 7 is sleeved on the crank 5. Specifically, the anti-slip sleeve 7 can increase the friction between the operator's hand and the crank 5, making it easier to turn the crank 5.

[0025] As a preferred technical solution, a slide groove 13 is vertically opened on one side of the box door 2 close to the switch body 9, and a guide rod 14 is vertically arranged in the slide groove 13. The rack 15 is slidably sleeved on the guide rod 14. Specifically, the setting of the guide rod 14 is to guide the moving direction of the rack 15 on the one hand, and to prevent the rack 15 from being displaced in the horizontal direction and falling off from the slide groove 13 on the other hand.

[0026] As a preferred technical solution, air outlets and air inlets are respectively provided at the top and bottom of the box body 1, and exhaust fans 8 and suction fans 21 are respectively provided in the air outlet and air inlet. Specifically, by starting the exhaust fan 8 and the suction fan 21, under the action of the suction fan 21, the outside air flows into the box body 1 through the air inlet, and under the action of the exhaust fan 8, the hot air in the box body 1 is discharged through the air outlet, thereby achieving a rapid and effective cooling effect, ensuring the normal operation of the electrical components inside the box body 1.

[0027] As a preferred technical solution, a filter 6 is provided on the inner wall of the air outlet and the air inlet. Specifically, by providing two filters 6, dust particles in the external air can be prevented from entering the box body 1 through the air outlet and the air inlet.

[0028] As a preferred technical solution, a plurality of mounting blocks 3 are fixedly connected to the box body 1, and each mounting block 3 is provided with a threaded hole. Specifically, the box body 1 can be fixedly mounted on the wall through each mounting block 3, so that the installation of the box body 1 is more stable and not easy to loosen.

[0029] As a preferred technical solution, a handle 4 is provided on the side of the cabinet door 2 away from the switch body 9. Specifically, the cabinet door 2 can be opened and closed more conveniently through the handle 4.

[0030] Working principle: When the DC dual power switching device is disconnected from the common power supply due to a circuit fault at night, there is no good lighting condition. By turning the crank 5, the worm 20 is rotated, and the worm 20 drives the worm wheel 19 to rotate. The worm wheel 19 drives the gear 16 to rotate through the connecting rod 18. The gear 16 engages the transmission rack 15, so that the push plate 12 moves upward to push the lever 11 on the backup power switch 10, so that the staff does not need to unlock the box door 2 with a key and can directly enable the backup power supply in time outside the box door 2. It is not only convenient to enable the switch, but also safe.

[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A DC dual power supply switching device, characterized in that: The invention comprises a box body (1), one side of which is hingedly connected to a box door (2), a switch body (9) is arranged in the box body (1), a normal power switch (17) and a standby power switch (10) are arranged on the switch body (9), a lever (11) is rotatably connected to the standby power switch (10), a rack (15) is vertically slidably connected in the box door (2), a push plate (12) is fixedly connected to one side of the rack (15), the push plate (12) is abutted and matched with the lever (11), a worm (20) and a worm wheel (19) meshing with the worm (20) are rotatably connected in the box door (2), one end of the worm wheel (19) is coaxially fixedly connected to a gear (16) meshing with the rack (15) through a connecting rod (18), and a driving member for driving the worm (20) to rotate is arranged on the side of the box door (2) away from the switch body (9).

2. A DC dual power supply switching device according to claim 1, characterized in that: The driving member comprises a crank (5), one end of which is coaxially fixedly connected to one end of a worm (20).

3. A DC dual power switching device according to claim 2, characterized in that: An anti-slip sleeve (7) is sleeved on the crank (5).

4. A DC dual power switching device according to claim 1, characterized in that: A slide groove (13) is vertically provided on one side of the box door (2) close to the switch body (9), a guide rod (14) is vertically provided in the slide groove (13), and the rack (15) is slidably sleeved on the guide rod (14).

5. A DC dual power switching device according to claim 1, characterized in that: The top and bottom of the box body (1) are respectively provided with an air outlet and an air inlet, and an exhaust fan (8) and an intake fan (21) are respectively provided in the air outlet and the air inlet.

6. A DC dual power switching device according to claim 5, characterized in that: A filter screen (6) is provided on the inner wall of the air outlet and the air inlet.

7. A DC dual power switching device according to claim 1, characterized in that: A plurality of mounting blocks (3) are fixedly connected to the box body (1), and each mounting block (3) is provided with a threaded hole.

8. A DC dual power switching device according to claim 1, characterized in that: A handle (4) is provided on a side of the cabinet door (2) away from the switch body (9).

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