CN108227825B

CN108227825B - Operation handle stop-assisting device

Info

Publication number: CN108227825B
Application number: CN201810071880.XA
Authority: CN
Inventors: 王海庭; 李祥; 丁亮; 石文莹; 尚瑞; 周良稷; 任会芳; 刘巧珍; 申贤昌
Original assignee: Liugong Changzhou Machinery Co Ltd
Current assignee: Liugong Changzhou Machinery Co Ltd
Priority date: 2018-01-25
Filing date: 2018-01-25
Publication date: 2023-09-22
Anticipated expiration: 2038-01-25
Also published as: CN108227825A

Abstract

The invention discloses an operation handle stopping aid, which comprises a control device and a telescopic device; the control device is arranged on the bearing plate and used for controlling the telescopic device; one end of the telescopic device is hinged with an operating handle arranged on the bearing plate at the point A, and the other end of the telescopic device is hinged with the bearing plate at the point B; the telescopic device is a lockable telescopic device, and the lockable telescopic device comprises a release switch; the control device comprises a bracket, a contact switch and a pull wire; the bracket is arranged on the lower surface of the bearing plate; the contact switch is arranged in the center of the bracket and moves up and down relative to the bracket, and the top of the contact switch protrudes out of the upper surface of the bearing plate in an initial state; one end of the stay wire is hinged with the release switch at the point C, and the other end of the stay wire is controlled by the contact switch, so that the telescopic movement of the stay wire is realized. The invention has simple structure, high reliability, convenient use and maintenance and greatly improves the operation comfort.

Description

Operation handle stop-assisting device

Technical Field

The invention relates to an auxiliary device, in particular to an operation handle stopping assisting device, and belongs to the technical field of engineering machinery.

Background

The operating handle is a common mechanical control device, the position of which is related to both the comfort of the operator and to the arrangement of other related systems. The position of the operating handle is usually fixed on the bearing plate, and the adaptability of the operating handle is poor, which is disadvantageous for the arrangement of related systems. The partially improved operating handle can realize the change positions, but the number of the change positions is certain and less. Therefore, a control device capable of stopping the operating handle at different positions is needed so as to meet the requirements of different types, different operators and working conditions.

Disclosure of Invention

The invention is provided for overcoming the defects existing in the prior art, and aims to provide a stopping aid which is simple in structure, convenient to manufacture and convenient to operate.

The technical scheme is as follows: an operation handle stopping aid comprises a control device and a telescopic device; the control device is arranged on the bearing plate and used for controlling the telescopic device; one end of the telescopic device is hinged with an operating handle arranged on the bearing plate at the point A, and the other end of the telescopic device is hinged with the bearing plate at the point B; the telescopic device is a lockable telescopic device, and the lockable telescopic device comprises a release switch; the control device comprises a bracket, a contact switch and a pull wire; the bracket is arranged on the lower surface of the bearing plate; the contact switch is arranged in the center of the bracket and moves up and down relative to the bracket, and the top of the contact switch protrudes out of the upper surface of the bearing plate in an initial state; one end of the stay wire is hinged with the release switch at the point C, and the other end of the stay wire is controlled by the contact switch, so that the telescopic movement of the stay wire is realized.

Preferably, in order to realize the reciprocation of the stopping-assisting function, the control device further comprises a return element, wherein the return element is arranged in the center of the bracket and is coaxial with the contact switch, so that the contact switch is driven to return to an initial state.

Preferably, for realizing simple structure, the control device further comprises a connecting plate, the cross section of the connecting plate is triangular, the connecting plate is hinged with the bracket at a point D and is hinged with the stay wire at a point E, and when the contact switch moves downwards, the connecting plate is driven to do circular arc movement around the point D and simultaneously drive the stay wire to move.

Preferably, in order to save cost, the lockable expansion device is a lockable gas spring.

The beneficial effects are that: the invention has simple structure, high reliability, convenient use and maintenance and greatly improves the operation comfort.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

fig. 3 is a schematic view of a partial explosion of the control device of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the drawings.

An operation handle stopping aid comprises a control device 1 and a telescopic device 2; the control device 1 is arranged on the bearing plate 3 and controls the telescopic device 2; one end of the telescopic device 2 is hinged with an operating handle 4 arranged on the bearing plate 3 at a point A, and the other end of the telescopic device is hinged with the bearing plate 3 at a point B. The telescopic device 2 is a lockable telescopic device, and the lockable telescopic device comprises a release switch 21; the control device 1 comprises a bracket 11, a contact switch 12, a pull wire 13, a return element 14 and a connecting plate 15; the bracket 11 is arranged on the lower surface of the bearing plate 3; the contact switch 12 is arranged in the center of the bracket 11 and moves up and down relative to the bracket 11, and the top of the contact switch 12 protrudes out of the upper surface of the bearing plate 3 in an initial state. The return element 14 is mounted in the centre of the support 11, coaxially with the contact switch 12, to urge the contact switch 12 back to the initial state. The cross section of the connecting plate 15 is triangular, and the connecting plate 15 is hinged with the bracket 11 at a point D and is hinged with the pull wire 13 at a point E. The other end of the pull wire 13 is hinged with the release switch 21 at point C. When the contact switch 12 moves downwards, the connecting plate 15 is driven to do circular arc motion around the point D, and meanwhile, the stay wire 13 is driven to move.

For controlling the cost and being convenient to maintain, the structure of the pull wire 13 is basically consistent with that of an accelerator pull wire, and the lockable telescopic device is a lockable gas spring, namely, when the release switch 21 is opened, the lockable gas spring can realize telescopic stepless movement, and when the release switch 21 is closed, the lockable gas spring cannot realize telescopic movement and is in a stop state. When an operator needs to adjust the operating handle to a proper position, the contact switch 12 is only needed to be stepped on, the contact switch 12 moves downwards, the connecting plate 15 is driven to move around the point D in an arc mode, meanwhile, the pull wire 13 is driven to move, the release switch 21 is turned on, the operating handle is pushed/pulled to the proper position at the moment, the contact switch 12 is released, and the operating handle is stopped at the proper position. After releasing the contact switch 12, the return element 14 urges the contact switch 12 to return to the initial state, and closing of the contact switch 12 also urges the pull wire 13 to bring the connecting plate 15 back to the initial state, thereby facilitating the reciprocation operation of the operator.

Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that modifications and changes may be made to the above embodiments without departing from the spirit of the present invention, for example, the return element 14 may be a coil spring, a butterfly spring, the bottom of the contact switch 12 may be directly connected to the pull wire 13, etc., and still fall within the scope of the present invention.

Claims

1. An operation handle stopping aid comprises a control device (1) and a telescopic device (2); the control device (1) is arranged on the bearing plate (3) and controls the telescopic device (2); one end of the telescopic device (2) is hinged with an operating handle (4) arranged on the bearing plate (3) at the point A, and the other end of the telescopic device is hinged with the bearing plate (3) at the point B; the method is characterized in that: the telescopic device (2) is a lockable telescopic device, and the lockable telescopic device comprises a release switch (21); the control device (1) comprises a bracket (11), a contact switch (12) and a pull wire (13); the bracket (11) is arranged on the lower surface of the bearing plate (3); the contact switch (12) is arranged at the center of the bracket (11) and moves up and down relative to the bracket (11), and the top of the contact switch (12) protrudes out of the upper surface of the bearing plate (3) in an initial state; one end of the pull wire (13) is hinged with the release switch (21) at the point C, and the other end of the pull wire is controlled by the contact switch (12) to realize the telescopic movement of the pull wire (13);

the control device (1) further comprises a return element (14), wherein the return element (14) is arranged in the center of the bracket (11) and is coaxial with the contact switch (12) to enable the contact switch (12) to return to an initial state;

the control device (1) further comprises a connecting plate (15), the cross section of the connecting plate (15) is triangular, the connecting plate (15) is hinged to a D point and a pull wire (13) is hinged to an E point, and when the contact switch (12) moves downwards, the connecting plate (15) is driven to do circular arc movement around the D point, and meanwhile the pull wire (13) is driven to move;

the lockable telescopic device is a lockable gas spring; the lockable gas spring can realize telescopic stepless movement when the release switch (21) is opened, and can not realize telescopic movement when the release switch (21) is closed, and is in a stop state; when an operator needs to adjust the operating handle to a proper position, the contact switch (12) is only needed to be stepped on, the contact switch (12) moves downwards, the connecting plate (15) is driven to move round the point D in an arc mode, meanwhile, the pull wire (13) is driven to move, the release switch (21) is opened, the operating handle is pushed/pulled to the proper position at the moment, the contact switch (12) is released, the operating handle stops at the proper position, after the contact switch (12) is released, the return element (14) drives the contact switch (12) to return to the initial state, and the pull wire (13) is also driven to return to the initial state by closing of the contact switch (12), so that reciprocating operation of the operator is facilitated.