A quick-switching device for the contacts of a power supply electrical cabinet

Abstract

The present invention discloses a fast switching device for power cabinet contacts, including an electric box. The upper and lower sides inside the electric box are respectively rotatably connected with a first screw rod and a second screw rod. The first screw rod and the second screw rod are respectively fixedly connected to the output ends of two motors. Inside the electric box, above the second screw rod, a plurality of lower bevel gears capable of meshing with the second screw rod are rotatably connected. The upper surface of each lower bevel gear is fixedly connected with an outer sleeve shaft. Inside each outer sleeve shaft, a second clamping shaft is elastically clamped. The top end of each second clamping shaft is clamped and sleeved with a coupling sleeve. The top end of each coupling sleeve is clamped and sleeved with a first clamping shaft. The present invention can switch single contacts or single groups of contacts. When switching single contacts, multiple contacts can be individually switched simultaneously. When switching single groups of contacts, multiple groups of contacts can be switched simultaneously, greatly improving the switching efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power, and particularly relates to a quick switching device for the contacts of a power supply cabinet. Background Art

[0002] The contact is one of the key components of a switching electrical appliance, and is widely used especially in a power supply cabinet. The contact can be inserted into different closed circuits by contacting different contact points.

[0003] The traditional contacts of a power supply cabinet need to be manually switched individually, which is inconvenient to operate. Summary of the Invention

[0004] (1) Object of the Invention

[0005] In order to solve the technical problems existing in the background art, the present invention provides a quick switching device for the contacts of a power supply cabinet.

[0006] (2) Technical Solution

[0007] The present invention provides a quick switching device for the contacts of a power supply cabinet, which includes an electric box. The upper and lower sides inside the electric box are respectively rotatably connected with a first screw rod and a second screw rod. The first screw rod and the second screw rod are respectively fixedly connected with the output ends of two motors. Inside the electric box, above the second screw rod, a plurality of lower bevel gears that can be meshed with the second screw rod are rotatably connected. The upper surface of each lower bevel gear is fixedly connected with a sleeve shaft. Inside each sleeve shaft, a second clamping shaft is elastically clamped. The top of each second clamping shaft is clamped and sleeved with a connecting sleeve. The top of each connecting sleeve is clamped and sleeved with a first clamping shaft. The top of each first clamping shaft is fixedly connected with a contact seat. On the upper surface of each contact seat, a pair of contacts are symmetrically fixedly connected.

[0008] Preferably, inside the electric box, between each group of two connecting sleeves, a vertical rod is rotatably connected through a bearing. The top of each vertical rod is fixedly connected with an upper bevel gear that can be meshed with the first screw rod.

[0009] Preferably, the bottom end of the vertical rod is fixedly connected with an adapter column block. Both ends of the adapter column block are fixedly connected with threaded sleeves. Inside the threaded sleeves, threaded columns are spirally sleeved. One end of each threaded column is fixedly connected with a connecting rod. One end of the connecting rod is fixedly connected with a rubber plunger. On the outer surface of the connecting sleeve close to the rubber plunger, a cylinder is fixedly connected, and one end of the rubber plunger is clamped and sleeved inside the cylinder.

[0010] Preferably, a spring is arranged inside the sleeve shaft. The top of the spring is fixedly connected with the bottom of the second clamping shaft, and the bottom of the spring is fixedly connected with the inner wall of the sleeve shaft.

[0011] Preferably, a shifting shaft is fixedly connected to the front surface of the second clamping shaft, and a reserved groove for the up-and-down movement of the shifting shaft is formed in the front surface of the outer sleeve shaft.

[0012] Preferably, rectangular clamping blocks are fixedly connected to the outer surfaces of the second clamping shaft and the first clamping shaft, and rectangular clamping grooves matching the rectangular clamping blocks are formed in the upper and lower inner walls of the coupling sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention can switch a single contact or a single group of contacts. When switching a single contact, multiple contacts can be individually switched simultaneously. When switching a single group of contacts, multiple groups of contacts can be switched simultaneously, greatly improving the switching efficiency; through the meshing connection design of the lower bevel gear and the second screw rod, multiple contact seats can be driven to rotate simultaneously, so that the two contacts on the contact seat switch positions with each other; through the meshing connection design of the first screw rod and the upper bevel gear, two contact seats in each group can be driven to revolve around the vertical rod as the rotation axis, so that the contacts on the two contact seats in each group switch positions with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front view structural schematic diagram of a power cabinet contact rapid switching device proposed by the present invention;

[0015] Figure 2 is a cross-sectional view in the state of single contact switching in the present invention;

[0016] Figure 3 is a cross-sectional view in the state of single group contact switching in the present invention.

[0017] In the figure: 1 electric box, 2 first screw rod, 3 second screw rod, 4 lower bevel gear, 5 outer sleeve shaft, 6 coupling sleeve, 7 first clamping shaft, 8 contact seat, 9 contact, 10 connecting column block, 11 threaded sleeve, 12 connecting rod, 13 rubber plunger, 14 cylinder, 15 vertical rod, 16 upper bevel gear, 17 threaded column, 18 spring, 19 second clamping shaft, 20 shifting shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Such as Figures 1-3As shown in the figure, a fast switching device for the contacts of a power supply electric cabinet proposed by the present invention includes an electric box 1. The upper and lower sides inside the electric box 1 are respectively rotatably connected to a first screw rod 2 and a second screw rod 3. The first screw rod 2 and the second screw rod 3 are respectively fixedly connected to the output ends of two motors. Inside the electric box 1, above the second screw rod 3, multiple groups of lower bevel gears 4 that can be meshed with the second screw rod 3 are rotatably connected. The upper surface of each lower bevel gear 4 is fixedly connected to an outer sleeve shaft 5. Inside each outer sleeve shaft 5, a second clamping shaft 19 is elastically clamped. The top of each second clamping shaft 19 is clamped and sleeved with a coupling sleeve 6. The top of each coupling sleeve 6 is clamped and sleeved with a first clamping shaft 7. The top of each first clamping shaft 7 is fixedly connected to a contact seat 8. On the upper surface of each contact seat 8, a pair of contacts 9 are symmetrically fixedly connected.

[0020] In an alternative embodiment, inside the electric box 1, between each group of two coupling sleeves 6, a vertical rod 15 is rotatably connected through a bearing. The top of each vertical rod 15 is fixedly connected to an upper bevel gear 16 that can be meshed with the first screw rod 2.

[0021] In an alternative embodiment, the bottom end of the vertical rod 15 is fixedly connected to an adapter column block 10. Both ends of the adapter column block 10 are fixedly connected to threaded sleeve 11. Inside the threaded sleeve 11, a threaded column 17 is spirally sleeved. One end of the threaded column 17 is fixedly connected to a connecting rod 12. One end of the connecting rod 12 is fixedly connected to a rubber plunger 13. On the outer surface of the coupling sleeve 6 close to the rubber plunger 13, a cylinder 14 is fixedly connected. And one end of the rubber plunger 13 is clamped and sleeved inside the cylinder 14.

[0022] In an alternative embodiment, a spring 18 is arranged inside the outer sleeve shaft 5. The top of the spring 18 is fixedly connected to the bottom of the second clamping shaft 19, and the bottom of the spring 18 is fixedly connected to the inner wall of the outer sleeve shaft 5.

[0023] In an alternative embodiment, a dial shaft 20 is fixedly connected to the front surface of the second clamping shaft 19. On the front surface of the outer sleeve shaft 5, a reserved groove for the up and down movement of the dial shaft 20 is opened.

[0024] In an alternative embodiment, rectangular clamping blocks are fixedly connected to the outer surfaces of the second clamping shaft 19 and the first clamping shaft 7. Rectangular clamping grooves matching the rectangular clamping blocks are opened on the upper and lower inner walls of the coupling sleeve 6.

[0025] Working principle: For traditional power supply electric cabinet contacts, manual individual switching is required, which is inconvenient. In this embodiment, either a single contact 9 can be switched, or a single group of contacts 9 can be switched. When switching individually, multiple contacts 9 can be individually switched simultaneously. When switching in a group, multiple groups of contacts 9 can be switched simultaneously, greatly improving the switching efficiency. Specifically, when switching individually, such as Figure 2In the state shown, the rubber plunger 13 is separated from the cylinder 14 and the second clamping shaft 19 is clamped in the coupling sleeve 6. The external first motor drives the second screw 3 to rotate. The second screw 3 drives the lower bevel gear 4 to rotate horizontally. The lower bevel gear 4 drives the contact seat 8 and the two contacts 9 on the contact seat 8 to switch positions with each other through the clamping and sleeving of the outer sleeve shaft 5, the second clamping shaft 19, the coupling sleeve 6 and the first clamping shaft 7. When switching in a single group, such as Figure 3 In the state shown, the rubber plunger 13 is clamped in the cylinder 14 and the second clamping shaft 19 is separated from the coupling sleeve 6. The external second motor drives the first screw 2 to rotate. The first screw 2 drives the upper bevel gear 16 to rotate. The upper bevel gear 16 drives the connecting column block 10 to rotate through the vertical rod 15. The connecting column block 10 drives the two coupling sleeves 6 in each group to rotate through the connection of the threaded sleeve 11, the threaded column 17, the connecting rod 12, the rubber plunger 13 and the cylinder 14, thereby driving the two contact seats 8 to rotate, and further driving the position switching of the four contacts 9 in two groups.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0028] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A quick-switching device for power cabinet contacts, comprising an electric box (1), characterized in that, The upper and lower sides inside the electric box (1) are respectively rotatably connected with a first screw rod (2) and a second screw rod (3). The first screw rod (2) and the second screw rod (3) are respectively fixedly connected to the output ends of two motors. Inside the electric box (1) and above the second screw rod (3), a plurality of lower bevel gears (4) that can be meshed with the second screw rod (3) are rotatably connected. The upper surface of each lower bevel gear (4) is fixedly connected with a sleeve shaft (5). Inside each sleeve shaft (5), a second clamping shaft (19) is elastically clamped. The top of each second clamping shaft (19) is clamped and sleeved with a connecting sleeve (6). The top of each connecting sleeve (6) is clamped and sleeved with a first clamping shaft (7). The top of each first clamping shaft (7) is fixedly connected with a contact seat (8). A pair of contacts (9) are symmetrically and fixedly connected to the upper surface of each contact seat (8). The bottom end of the vertical rod (15) is fixedly connected with an adapter column block (10). Threaded sleeves (11) are fixedly connected to both ends of the adapter column block (10). A threaded column (17) is helically sleeved inside the threaded sleeve (11). One end of the threaded column (17) is fixedly connected with a connecting rod (12). One end of the connecting rod (12) is fixedly connected with a rubber plunger (13). A cylinder (14) is fixedly connected to the outer surface of the connecting sleeve (6) close to the rubber plunger (13), and one end of the rubber plunger (13) is clamped and sleeved inside the cylinder (14).

2. The quick switching device for the power supply cabinet contacts according to claim 1, wherein Inside the electric box (1) and between each group of two connecting sleeves (6), a vertical rod (15) is rotatably connected through a bearing. The top of each vertical rod (15) is fixedly connected with an upper bevel gear (16) that can be meshed with the first screw rod (2).

3. The quick-switching device for the power cabinet contact according to claim 1, wherein A spring (18) is arranged inside the sleeve shaft (5). The top of the spring (18) is fixedly connected to the bottom of the second clamping shaft (19), and the bottom of the spring (18) is fixedly connected to the inner wall of the sleeve shaft (5).

4. A fast switching device for the contacts of a power supply cabinet according to claim 1, characterized in that, A dial shaft (20) is fixedly connected to the front surface of the second clamping shaft (19). A reserved groove for the up-and-down movement of the dial shaft (20) is opened on the front surface of the sleeve shaft (5).

5. A fast switching device for the contacts of a power cabinet according to claim 1, characterized in that, Rectangular clamping blocks are fixedly connected to the outer surfaces of the second clamping shaft (19) and the first clamping shaft (7). Rectangular clamping grooves matching the rectangular clamping blocks are opened on the upper and lower inner walls of the connecting sleeve (6).

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