CN112508160B

CN112508160B - Misoperation-preventing purely mechanical locking mechanism

Info

Publication number: CN112508160B
Application number: CN202011258152.3A
Authority: CN
Inventors: 纪洁; 孟庆斌; 赵红梅
Original assignee: Luoyang Institute of Electro Optical Equipment AVIC
Current assignee: Luoyang Institute of Electro Optical Equipment AVIC
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2024-03-29
Anticipated expiration: 2040-11-11
Also published as: CN112508160A

Abstract

The invention relates to an anti-misoperation pure mechanical locking mechanism which comprises two buttons, wherein each button comprises a pressure spring, a push rod, a rotating shaft and a lock catch. The two buttons are linked through a rotating shaft, and one button is used for locking the lock catch. Through pressing the button, compress the pressure spring, drive the push rod and rotate, pivot and hasp rotate together to realize locking, unblock and prevent the maloperation function. The mechanism is a purely mechanical mechanism, and the mechanism functions are realized through the precise design and processing of parts. The mechanism has simple structure, small size and reliable performance.

Description

Misoperation-preventing purely mechanical locking mechanism

Technical Field

The invention belongs to the technical field of mechanical counters, and relates to a pure mechanical locking mechanism capable of preventing misoperation.

Background

Under the complex working environment, not only the mechanical counter is easy to have technical errors, but also a user is easy to have misoperation, because a locking mechanism imitating misoperation needs to be designed in the common mechanical counter to meet the working requirements under the severe environment, and the reliability of the mechanical counter is improved.

Disclosure of Invention

Technical problem to be solved

In order to avoid the defects of the prior art, the invention provides a pure mechanical locking mechanism for preventing misoperation

Technical proposal

An anti-misoperation pure mechanical locking mechanism is characterized by comprising two buttons, two pressure springs, two push rods, a rotating shaft 4, a counter 15 and a lock catch 6; the two buttons are arranged on the panel, the lower end of the first button 1 is provided with a first pressure spring 2 and is in sliding connection with an unthreaded hole 16 at one end of a first push rod 3 through a first screw 10, the other end of the first push rod 3 is fixedly connected with one end of a rotating shaft 4 through a first set screw 11, the other end of the rotating shaft 4 is fixedly connected with one end of a lock catch 6 through a second set screw, and a bealock at the other end of the lock catch 6 is clamped at the lower end of a second button 8; the lower end of the second button 8 is provided with a second pressure spring 7 and is in sliding connection with an unthreaded hole at one end of the second push rod 5 through a second screw 13, the other end of the second push rod 5 is connected with one end of a third push rod 9 through a third screw 14, and the other end of the third push rod 9 is connected with a counting shaft of a counter 15.

The bealock at the other end of the lock catch 6 adopts a sharp angle structure, and the lower end of the second button 8 is an inclined plane sharp angle.

Advantageous effects

The invention provides an anti-misoperation pure mechanical locking mechanism which comprises two buttons, wherein each button comprises a pressure spring, a push rod, a rotating shaft and a lock catch. Through pressing the button, compress the pressure spring, drive the push rod and rotate, pivot and hasp rotate together to realize locking, unblock and prevent the maloperation function. The mechanism is a purely mechanical mechanism, and the mechanism functions are realized through the precise design and processing of parts. The mechanism has simple structure, small size and reliable performance.

Drawings

Fig. 1: the invention relates to a structural schematic diagram of a pure mechanical locking mechanism capable of preventing misoperation

Fig. 2: the invention relates to a structural schematic diagram of a pure mechanical locking mechanism capable of preventing misoperation

Fig. 3: the invention relates to a cross-sectional view of a pure mechanical locking mechanism for preventing misoperation

Fig. 4: structural schematic of the shackle 6

In the figure, 1, a first button; 2. a first compression spring; 3. a first push rod; 4. a rotating shaft; 5. a second push rod; 6. locking; 7. a second compression spring; 8. a second button; 9. a third push rod; 10. a screw; 11. a first set screw; 12. a second set screw; 13. a second screw; 14. a third screw; 15. a counter; 16. and (5) a light hole.

Detailed Description

The invention will now be further described with reference to examples, figures:

the invention comprises two buttons, two pressure springs, two push rods, a rotating shaft 4, a counter 15 and a lock catch 6; the two buttons are arranged on the panel, the lower end of the first button 1 is provided with a first pressure spring 2 and is in sliding connection with an unthreaded hole 16 at one end of a first push rod 3 through a first screw 10, the other end of the first push rod 3 is fixedly connected with one end of a rotating shaft 4 through a first set screw 11, the other end of the rotating shaft 4 is fixedly connected with one end of a lock catch 6 through a second set screw, and a bealock at the other end of the lock catch 6 is clamped at the lower end of a second button 8; the lower end of the second button 8 is provided with a second pressure spring 7 and is in sliding connection with an unthreaded hole at one end of the second push rod 5 through a second screw 13, the other end of the second push rod 5 is connected with one end of a third push rod 9 through a third screw 14, and the other end of the third push rod 9 is connected with a counting shaft of a counter 15.

Through pressing the button, compression pressure spring drives the push rod and rotates, and pivot and hasp rotate together, have the effort that forms certain contained angle with vertical direction to realize locking, unblock and prevent the maloperation function with the hasp to utilize the inclined plane of button.

The first push rod 1 is connected with the first push rod 3 (after the first push rod 1 is pressed by a first screw 10, the first screw 10 fixedly connected with the first push rod 1 can move in a strip-shaped unthreaded hole on the first push rod 3 to drive the push rod to move, the first push rod 3 is fixedly connected with the rotating shaft 4 by a first set screw 11 so as to drive the rotating shaft 4 to rotate, the other end of the rotating shaft 4 is fixedly connected with the buckle 6 by a second set screw 12, the second push rod 8 is connected with the second push rod 5 by a second screw 13, the second push rod 5 is connected with the third push rod 9 by a third screw 14, and the third push rod 9 is connected with the counter 15.

The first pressure spring 2 is arranged between the first button 1 and the first push rod 3, after the first button 1 is pressed, the first pressure spring 2 inside the first button 1 compresses and drives the first push rod 3 to rotate, the rotating shaft 4 and the lock catch 6 rotate together, and the lock catch is separated from the second button 8, so that the unlocking function is realized.

Pressing the second button 8, compressing the second pressure spring 7 inside the second button 8, driving the second push rod 5 to move downwards by the second button 8, and counting 1 time by the counter 15 after the third push rod 9 of the second push rod 5 drives the counter knob to rotate a certain radian.

When the pressing force of the two buttons is withdrawn, the two buttons move upwards under the action of the resilience force of the two pressure springs, so that the push rod is driven, the lock catch moves together and returns to the initial state, and at the moment, the lock catch 6 hooks the inclined plane of the second button 8, so that locking is realized.

If the operator withdraws the pressing force of the first button 1, at this time, the sharp angle position of the lock hook 6 and the inclined plane sharp angle of the second button 8 are contacted with each other, the problem that the lock catch 6 blocks the button can not occur, and after the pressing force of the second button 8 is withdrawn, the two buttons move upwards under the action of the resilience force of the two pressure springs, so that the push rod is driven to move together and return to the initial locking state.

When the staff only presses the second button 8, the inclined plane of the second button 8 and the lock catch have an acting force forming a certain included angle with the vertical direction, and the button cannot drive the lock catch to rotate, so that the misoperation preventing effect is realized.

As shown in fig. 4: the lock catch is a key part of the misoperation prevention mechanism, and the structure of the lock catch influences the locking reliability. Because of the small size and thin parts, in order to prevent deformation, a mode of cutting out a rough blank by a linear cutting method, clamping by a special clamp for finish machining, and polishing by a polisher after molding is adopted.

Claims

1. An anti-misoperation pure mechanical locking mechanism is characterized by comprising two buttons, two pressure springs, two push rods, a rotating shaft (4), a counter (15) and a lock catch (6); the two buttons are arranged on the panel, the lower end of the first button (1) is provided with a first pressure spring (2) and is in sliding connection with an unthreaded hole (16) at one end of the first push rod (3) through a first screw (10), the other end of the first push rod (3) is fixedly connected with one end of the rotating shaft (4) through a first set screw (11), the other end of the rotating shaft (4) is fixedly connected with one end of the lock catch (6) through a second set screw, and a bealock at the other end of the lock catch (6) is clamped at the lower end of the second button (8); the lower end of the second button (8) is provided with a second pressure spring (7) and is in sliding connection with a light hole at one end of the second push rod (5) through a second screw (13), the other end of the second push rod (5) is connected with one end of a third push rod (9) through a third screw (14), and the other end of the third push rod (9) is connected with a counting shaft of a counter (15);

the bealock at the other end of the lock catch (6) adopts a sharp angle structure, and the lower end of the second button (8) is a bevel sharp angle;

the first push rod (3) is provided with a first pressure spring (2) in the middle of the first push rod (1), after the first push rod (1) is pressed, the first pressure spring (2) in the first push rod (1) compresses and drives the first push rod (3) to rotate, the rotating shaft (4) and the lock catch (6) rotate together, and the lock catch (6) is separated from the second push rod (8) to realize an unlocking function;

pressing a second button (8), compressing a second pressure spring (7) in the second button (8), simultaneously driving a second push rod (5) to move downwards by the second button (8), and counting 1 time by a counter (15) after a third push rod (9) of the second push rod (5) drives a counter knob to rotate for a certain radian;

when the pressing force of the two buttons is withdrawn, under the action of resilience force of the two pressure springs, the two buttons move upwards, so that the push rod is driven, the lock catch moves together and returns to an initial state, and at the moment, the lock catch (6) hooks the inclined plane of the second button (8), so that locking is realized;

when an operator withdraws the pressing force of the first button (1), the sharp angle position of the lock catch (6) and the inclined surface sharp angle of the second button (8) are contacted with each other, the problem that the lock catch (6) clamps the buttons is avoided, and when the pressing force of the second button (8) is withdrawn, the two buttons move upwards under the action of resilience force of the two pressure springs, so that the push rod is driven to move together and return to an initial locking state;

when the staff only presses the second button (8), the inclined plane of the second button (8) and the lock catch have an acting force forming a certain included angle with the vertical direction, and the button can not drive the lock catch to rotate, so that the misoperation preventing effect is realized.