CN108167515B

CN108167515B - Integral type fast switch over hand wheel dish locking mechanism

Info

Publication number: CN108167515B
Application number: CN201810144349.0A
Authority: CN
Inventors: 倪晓飞; 陈彦; 邓传湖; 张程; 王文明
Original assignee: Wuxi Smart Auto Control Engineering Co Ltd
Current assignee: Wuxi Smart Auto Control Engineering Co Ltd
Priority date: 2018-02-12
Filing date: 2018-02-12
Publication date: 2020-05-05
Anticipated expiration: 2038-02-12
Also published as: CN108167515A

Abstract

The invention relates to an integrated rapid switching hand wheel disc locking mechanism which comprises a hand wheel disc, an anti-rotation pin, a leaf spring, a first compression spring, a pressing handle, an input shaft, a flat key, a second compression spring and a hand wheel mechanism main body, wherein the hand wheel disc is fixedly connected with the input shaft; the anti-rotation mechanism comprises a hand wheel mechanism body, and is characterized in that an input shaft is connected to the hand wheel mechanism body, a flat spring and a flat key are arranged between the input shaft and the hand wheel disc, the hand wheel disc can be close to or far away from the hand wheel mechanism body along the input shaft, an anti-rotation pin is arranged in the hand wheel disc, the tail end of the anti-rotation pin is connected with a pressing handle, a first compression spring is sleeved on the anti-rotation pin, and a second compression spring. The invention has simple structure, compact design and convenient use, simplifies the operation steps and saves the operation time; the anti-rotation pin is installed inside the hand wheel disc, so that the anti-rotation pin can be prevented from being lost in a long-term use process, and the anti-rotation pin is inserted into the hand wheel mechanism body instead of the input shaft in a locking state, so that the strength of the output shaft can be prevented from being reduced.

Description

Integral type fast switch over hand wheel dish locking mechanism

Technical Field

The invention relates to an integrated rapid switching hand wheel disc locking mechanism, and belongs to the technical field of pneumatic actuating mechanisms.

Background

At present, most of manual mechanisms of pneumatic actuating mechanisms adopt a hand wheel operation mode, and the anti-rotation structure of the hand wheel basically adopts the mode of punching on an input shaft and a hand wheel mechanism body and achieves the anti-rotation purpose by inserting anti-rotation pins in a penetrating mode. However, under actual conditions, the traditional operation mode is complex, and the anti-rotation pin is provided separately as an accessory of the hand wheel mechanism and is often easy to lose in the using process. Moreover, the anti-rotation pin holes in the input shaft can greatly weaken the strength of the input shaft, and the strength design of the input shaft is influenced.

Disclosure of Invention

The invention aims to solve the problems and provides an integrated rapid switching hand wheel disc locking mechanism which is simple in structure and compact in design, a large number of manual steps in the process of switching a hand wheel disc between a locking state and an operating state are omitted, and the operation is simple and rapid. The integrated design of the anti-rotation pin and the hand wheel disc can also avoid the condition that the anti-rotation pin is lost in the traditional structure, so that the hand wheel mechanism is safer and more reliable.

The invention adopts the following technical scheme: an integrated rapid switching hand wheel disc locking mechanism comprises a hand wheel disc, an anti-rotation pin, a leaf spring, a first compression spring, a pressing handle, an input shaft, a flat key, a second compression spring and a hand wheel mechanism main body; the hand wheel mechanism is characterized in that an input shaft is connected to the hand wheel mechanism body, a flat key and a flat spring are arranged between the input shaft and the hand wheel disc, the hand wheel disc can be close to or far away from the hand wheel mechanism body along the input shaft, an anti-rotation pin is arranged inside the hand wheel disc, the tail end of the anti-rotation pin is connected with a pressing handle, a first compression spring is sleeved on the anti-rotation pin, a second compression spring is arranged on the input shaft, and an anti-rotation pin hole is formed in the hand wheel mechanism body in a corresponding mode.

Furthermore, a flat washer is fixed at the tail end of the input shaft through a hexagon bolt.

Further, the leaf spring is of an obtuse triangle structure.

Furthermore, a positioning step corresponding to the leaf spring is arranged in the hand wheel disc.

The invention has simple structure, compact design and convenient use, simplifies the operation steps and saves the operation time; the anti-rotation pin is installed inside the hand wheel disc, so that the anti-rotation pin can be prevented from being lost in a long-term use process, and the anti-rotation pin is inserted into the hand wheel mechanism body instead of the input shaft in a locking state, so that the strength of the output shaft can be prevented from being reduced.

Drawings

FIG. 1 is a schematic view of the hand wheel disc operating state of the present invention.

Fig. 2 is a schematic structural diagram of the locking state of the handwheel disk of the invention.

Fig. 3 is a schematic view of a switching structure for locking the handwheel disc to an operating state according to the present invention.

Reference numerals: the anti-rotation hand wheel mechanism comprises a hand wheel disc 1, an anti-rotation pin 2, a leaf spring 3, a first compression spring 4, a pressing handle 5, an input shaft 6, a flat key 7, a second compression spring 8, a hand wheel mechanism body 9, a flat washer 10, a hexagon bolt 11 and an anti-rotation pin hole 12.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, an integrated fast switching hand wheel disc locking mechanism comprises a hand wheel disc 1, an anti-rotation pin 2, a leaf spring 3, a first compression spring 4, a pressing handle 5, an input shaft 6, a flat key 7, a second compression spring 8 and a hand wheel mechanism body 9; be connected with input shaft 6 on the hand wheel mechanism

main part

9, 1 is provided with leaf spring 3 and parallel key 7 between input shaft 6 and the hand wheel dish, hand wheel dish 1 can be close to or keep away from hand wheel mechanism main part 9 along input shaft 6, the inside stop pin 2 that is provided with of hand wheel dish 1, the end-to-end connection of stop pin 2 presses handle 5, the cover is equipped with first compression spring 4 on the stop pin 2, be provided with second compression spring 8 on the input shaft 6, the end of input shaft 6 is fixed with flat packing ring 10 through hex bolts 11, it is provided with anti-rotation pinhole 12 to correspond stop pin 2 on the hand wheel mechanism main part 9.

The using method comprises the following steps: when the hand wheel disc 1 is switched from an operation state to a locking state, the pressing handle 5 is pressed down, the hand wheel disc 1 is rotated, and when the anti-rotation pin hole in the hand wheel mechanism main body 9 is concentric with the anti-rotation pin 2, the anti-rotation pin 2 is pressed into the anti-rotation pin hole 12 in the hand wheel mechanism main body 9; as shown in fig. 2, at this time, the leaf spring 3 abuts against the positioning step of the anti-rotation pin 2, and the handwheel disk 1 enters a locking state.

When the hand wheel disc 1 is switched from the locking state to the operating state, the hand wheel disc 1 is pushed forwards to be attached to the hand wheel mechanism main body 9, and as shown in fig. 3, the second compression spring 8 is compressed to the maximum compression state; the leaf spring 3 is extruded and deformed by the inclined plane of the hand wheel disc 1 and is separated from the positioning step of the anti-rotation pin 2; the anti-rotation pin 2 is popped out of an anti-rotation pin hole position of the hand wheel mechanism main body 9 under the thrust of the first compression spring 4; when the hand wheel disc 1 is released, the hand wheel disc 1 moves backwards under the thrust action of the second compression spring 8, and the hand wheel disc 1 enters an operable state.

Claims

1. The utility model provides an integral type fast switch over hand wheel dish locking mechanism which characterized in that: comprises a hand wheel disc (1), an anti-rotation pin (2), a leaf spring (3), a first compression spring (4), a pressing handle (5), an input shaft (6), a flat key (7), a second compression spring (8) and a hand wheel mechanism body (9); the anti-rotation mechanism is characterized in that an input shaft (6) is connected to the hand wheel mechanism body (9), the hand wheel disc (1) can be close to or far away from the hand wheel mechanism body (9) along the input shaft (6), an anti-rotation pin (2) is arranged in the hand wheel disc (1), the tail end of the anti-rotation pin (2) is connected with a pressing handle (5), a first compression spring (4) is sleeved on the anti-rotation pin (2), a second compression spring (8) is arranged on the input shaft (6), and an anti-rotation pin hole (12) is formed in the hand wheel mechanism body (9) and corresponds to the anti-rotation pin (2); one end of the leaf spring (3) is positioned on the input shaft (6), and the other end of the leaf spring is matched with a positioning step on the anti-rotation pin (2);

when the anti-rotation mechanism is used, the hand wheel disc (1) is switched to a locking state from an operation state, the pressing handle (5) is pressed down, the hand wheel disc (1) is rotated, and when the anti-rotation pin holes in the hand wheel mechanism body (9) are concentric with the anti-rotation pins (2), the anti-rotation pins (2) are pressed into the anti-rotation pin holes (12) in the hand wheel mechanism body (9); at the moment, the leaf spring (3) props against the positioning step of the anti-rotation pin (2), and the hand wheel disc (1) enters a locking state;

when the hand wheel disc (1) is switched to an operation state from a locking state, the hand wheel disc (1) is pushed forwards to be attached to a hand wheel mechanism main body (9), and a second compression spring (8) is compressed to a maximum compression state; the leaf spring (3) is extruded and deformed by the inclined plane of the hand wheel disc (1) and is separated from the positioning step of the anti-rotation pin (2); the anti-rotation pin (2) is popped out of an anti-rotation pin hole position of the hand wheel mechanism main body (9) under the thrust of the first compression spring (4); when the hand wheel disc (1) is released, the hand wheel disc (1) moves backwards under the thrust action of the second compression spring (8), and the hand wheel disc (1) enters an operable state.

2. The integrated fast-switching hand wheel disc locking mechanism of claim 1, wherein: the tail end of the input shaft (6) is fixed with a flat washer (10) through a hexagon bolt (11).

3. The integrated fast-switching hand wheel disc locking mechanism of claim 1, wherein: the leaf spring (3) is of an obtuse triangle structure.

4. The integrated fast-switching hand wheel disc locking mechanism of claim 1, wherein: and a positioning step corresponding to the leaf spring (3) is arranged in the hand wheel disc (1).