A three-position operating mechanism for an inflatable cabinet

Abstract

The present invention discloses a three-station operating mechanism for an inflatable cabinet, comprising a three-station bracket, a driving motor, an isolation driving shaft, a station switching screw, a station switching slider, a three-station panel and a three-station slide; the station switching screw drives the station switching slider to slide, so that the station switching slider moves and switches positions; the three-station panel is provided with an isolation operating hole, a grounding operating hole and a handle switching hole, and the three-station slide is provided with an isolation connecting hole, a grounding connecting hole and an operating handle; the operating handle cooperates with the handle switching hole to drive the three-station slide to slide and switch positions; this scheme enables the operating mechanism to switch between automatic and manual states through the three-station slide, and can independently control the isolation driving shaft and the station switching screw, thereby driving the isolation mechanism and the station switching slider to change, and the hole position adopts a staggered sliding switching method, which can prevent misoperation and improve the working stability of the three-station operating mechanism.

Description

Technical Field

[0001] The invention relates to a three-station operating mechanism for an inflatable cabinet, belonging to the technical field of inflatable cabinets. Background Art

[0002] The inflatable cabinet is a kind of power switch equipment. The main switch can use either a permanent magnet mechanism vacuum circuit breaker or a spring mechanism vacuum circuit breaker. The whole cabinet adopts a combination of air insulation and sulfur hexafluoride gas compartment. It has the characteristics of compact structure, flexible operation, and reliable interlocking. It is compact and expandable, suitable for various application occasions, especially places with harsh environments, and can meet the different needs of users.

[0003] A station switching mechanism needs to be set up in the inflatable cabinet to switch the circuit between the connected, isolated and grounded states. However, the existing station switching mechanism structure is not reasonable enough and cannot effectively switch the working state of the control mechanism, and there is a hidden danger of misoperation in the control process. Summary of the Invention

[0004] The purpose of the present invention is to provide a three-position operating mechanism for an inflatable cabinet in order to overcome the deficiencies of the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a three-station operating mechanism of an inflatable cabinet, comprising a three-station bracket, a drive motor, an isolation drive shaft, a station switching screw, a station switching slider, a three-station panel and a three-station slide; the drive motor, isolation drive shaft, station switching screw and three-station panel are all arranged on the three-station bracket, and the output end of the drive motor is coordinated with the isolation drive shaft and the station switching screw through a clutch; three groups of micro switches are also provided on the three-station bracket, and the station switching screw drives the station switching slider to slide, so that the station switching slider is respectively coordinated with the three groups of micro switches; the three-station slide is slidingly arranged on the front side of the three-station bracket, and the three-station panel is located on the outside of the three-station slide, and the three-station panel is provided with an isolation operation hole, a grounding operation hole and a handle switching hole, and the three-station slide is provided with an isolation connection hole, a grounding connection hole and an operating handle; the operating handle cooperates with the handle switching hole to drive the three-station slide to slide and switch positions, so that the isolation connection hole is aligned with the isolation operation hole, or the grounding connection hole is aligned with the grounding operation hole.

[0006] Preferably, the isolation operation hole and the isolation connection hole are used to insert the isolation operation component, the isolation operation component is used to rotate the isolation drive shaft, and the grounding operation hole and the grounding connection hole are used to insert the grounding operation component, and the grounding operation component is used to rotate the workstation switching screw.

[0007] Preferably, a contact protrusion is provided on the station switching slider, and the contact protrusion is used to cooperate with the micro switch.

[0008] Preferably, the three-station bracket is further provided with a slider interlocking rod, which cooperates with the interlocking mechanism and the station switching slider.

[0009] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0010] The three-position operating mechanism of the inflatable cabinet of the present invention can switch the operating mechanism between automatic and manual states through the three-position slide, and can independently control the isolation drive shaft and the position switching screw rod, thereby driving the isolation mechanism and the position switching slider to change. The hole position adopts an offset sliding switching method to prevent misoperation and improve the working stability of the three-position operating mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The technical solution of the present invention will be further described below with reference to the accompanying drawings:

[0012] Attachment Figure 1 This is a schematic diagram of the three-position operating mechanism of the inflatable cabinet of the present invention;

[0013] Attachment Figure 2 This is a top view of the three-station operating mechanism of the inflation cabinet described in the present invention. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1 、 2 As shown, the three-station operating mechanism of the inflatable cabinet described in the present invention includes a three-station bracket 21, a drive motor 22, an isolation drive shaft 23, a station switching screw rod 24, a station switching slider 25, a three-station panel 26 and a three-station slide plate 27; the drive motor 22, the isolation drive shaft 23, the station switching screw rod 24 and the three-station panel 26 are all arranged on the three-station bracket 21, and the three-station bracket 21 includes a front end frame and a rear end frame and a connecting rod in the middle, and the output end of the drive motor 22 cooperates with the isolation drive shaft 23 and the station switching screw rod 24 through a clutch.

[0016] Three groups of micro switches 28 are also provided on the three-station bracket 21. The station switching screw rod 24 drives the station switching slider 25 to slide, so that the station switching slider 25 can be moved to the front and rear ends of the station switching screw rod 24 and the three middle stations respectively. The three stations include the connection station, the grounding station and the isolation station. The station switching slider 25 is provided with a contact protrusion 29. After the micro switch 28 moves into place, it cooperates with the three groups of micro switches 28 through the contact protrusion 29.

[0017] The three-station slide 27 is slidingly arranged on the front side of the three-station bracket 21, and the three-station panel 26 is located on the outside of the three-station slide 27. The three-station panel 26 is provided with an isolation operation hole, a grounding operation hole and a handle switching hole 211, and the three-station slide 27 is provided with an isolation connection hole, a grounding connection hole and an operating handle 212; the operating handle 212 cooperates with the handle switching hole 211, and by toggling the operating handle 212, the three-station slide 27 can be driven to slide left and right to switch positions, so that the isolation connection hole is aligned with the isolation operation hole, or the grounding connection hole is aligned with the grounding operation hole.

[0018] When the operating handle 212 is in the middle position of the handle switching hole 211, the three-station is in automatic gear, and the output end gear of the drive motor 22 is engaged with the gears of the isolation drive shaft 23 and the station switching screw 24 through the clutch. The drive motor 22 can drive the isolation drive shaft 23 and the station switching screw 24 to rotate; the clutch can adopt a conventional moving gear pair. When it is in the automatic position, the slide drives the moving gear pair to engage with the gears of the motor and the two drive shafts. When it is in the manual position, the moving gear pair leaves the engaged position; a sprocket is set at the rear end of the isolation drive shaft 23, and the sprocket drives the isolation mechanism of the inflatable cabinet to operate through a chain. At the same time, the isolation drive shaft 23 can also serve as a sliding guide rod for the station switching slider 25.

[0019] When the operating handle 212 is moved to the left or right position of the handle switching hole 211, the three-position gear is manual, the clutch is disconnected, and the output end gear of the drive motor 22 is separated from the gears of the isolation drive shaft 23 and the position switching screw 24, and the isolation drive shaft 23 or the position switching screw 24 can be manually controlled separately; the isolation operating hole and the isolation connecting hole are used to insert the isolation operating component, and the isolation operating component is used to rotate the isolation drive shaft 23, and the isolation component of the inflatable cabinet can be manually controlled; the grounding operating hole and the grounding connecting hole are used to insert the grounding operating component, and the grounding operating component is used to rotate the position switching screw 24, and the position switching slider 25 can be manually controlled to switch the working position.

[0020] The three-station bracket 21 is also provided with a slider interlocking rod 213, which cooperates with the station switching slider 25. The slider interlocking rod 213 is provided with an interlocking crank arm, which can be locked by the interlocking mechanism of the inflatable cabinet, thereby limiting the station switching slider 25 to the current position.

[0021] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A three-station operating mechanism for an inflatable cabinet, characterized by: The invention comprises a three-station bracket (21), a driving motor (22), an isolating driving shaft (23), a station switching screw rod (24), a station switching slider (25), a three-station panel (26) and a three-station slide plate (27); the driving motor (22), the isolating driving shaft (23), the station switching screw rod (24) and the three-station panel (26) are all arranged on the three-station bracket (21), and the output end of the driving motor (22) cooperates with the isolating driving shaft (23) and the station switching screw rod (24) through a clutch; three groups of micro switches (28) are also arranged on the three-station bracket (21), and the station switching screw rod (24) drives the station switching slider (25) to slide, so that The station switching slider (25) is respectively matched with three groups of micro switches (28); the three-station slide plate (27) is slidably arranged on the front side of the three-station bracket (21); the three-station panel (26) is located on the outside of the three-station slide plate (27); the three-station panel (26) is provided with an isolation operation hole, a grounding operation hole and a handle switching hole (211); the three-station slide plate (27) is provided with an isolation connection hole, a grounding connection hole and an operating handle (212); the operating handle (212) cooperates with the handle switching hole (211) to drive the three-station slide plate (27) to slide and switch positions, so that the isolation connection hole is aligned with the isolation operation hole, or the grounding connection hole is aligned with the grounding operation hole; The isolation operation hole and the isolation connection hole are used to insert the isolation operation component, the isolation operation component is used to rotate the isolation drive shaft (23), and the grounding operation hole and the grounding connection hole are used to insert the grounding operation component, the grounding operation component is used to rotate the station switching screw (24); The station switching slider (25) is provided with a contact protrusion (29), and the contact protrusion (29) is used to cooperate with the micro switch (28); The three-station bracket (21) is further provided with a slider interlocking rod (213), and the slider interlocking rod (213) cooperates with the interlocking mechanism and the station switching slider (25).

Images