CN220106335U - Limit switch based on handle bidirectional operation - Google Patents

Abstract

The utility model discloses a limit switch based on bidirectional handle operation, which comprises an operation handle, a rotating shaft, an operation head shell, a pressing block, a sliding block spring, an operation piece, an operation spring and a limit bushing, wherein the operation handle is arranged on the rotating shaft; the operating handle is connected with the rotating shaft through bolt locking, the rotating shaft penetrates into the operating head shell, the pressing block is connected with the sliding block in a sliding manner and is installed in the operating head shell and matched with the rotating shaft, the sliding block is matched with the operating piece through the limiting bushing, the sliding block spring is installed in the operating head shell and connected with the sliding block, and the operating piece is matched with the operating piece spring and is installed and fixed in the switch body; the switch body comprises a contact spring and a contact support, the contact support is connected with the operating piece, and the contact spring is arranged in the contact support. The utility model can realize the bidirectional state switching of the limit switch, and simultaneously can ensure that the operating angle travel of the limit switch is unchanged and reaches a bidirectional extremum.

Description

Limit switch based on handle bidirectional operation

Technical Field

The utility model relates to a limit switch based on handle bidirectional operation, which is used in the field of a limit switch of a position of a piezoelectric device.

Background

Limit switches are mechanical devices used in industries such as industrial automation to enable industrial equipment or pipelines to close or open circuits through operation of the switches, so as to control normal production of the equipment or pipelines or temporarily interrupt production. In the prior art, a bidirectional operation position limit switch can be connected with an operation piece through a handle of a mechanical device to realize the closing or opening of the switch or circuit switching. But the stroke motion direction of the operating member is linear, and the connection and the driving of the operating member and the handle of the mechanical device can be limited by the operating angle and the installation condition, so that the limit switch is required to be modified in a narrow space, a certain obstruction is generated in the switch installation process of equipment manufacturers, a certain influence is generated on the model resolution of assembly personnel, and a certain resource occupation is generated in the material management process of the manufacturers.

The limit switch with the bidirectional rotary handle can effectively reduce the switch installation space, reduce the switch installation difficulty and improve the switch space utilization efficiency. However, after the bidirectional rotary handle head is installed, the travel of the operating head is limited, so that the rotation angles of the bidirectional rotary handle to two sides are inconsistent when the switch generates signal switching, difficulty is caused in actual installation, the fact that the handle rotates to what angle can be ensured to trigger the switch signal switching is difficult to be clear, and more debugging is needed after the installation is completed.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a limit switch based on bidirectional operation of a handle, which can realize bidirectional state switching of the limit switch and simultaneously ensure that the operation angle travel of the limit switch is unchanged and a bidirectional extremum is achieved.

The technical scheme for achieving the purpose is as follows: a limit switch based on two-way handle operation comprises a switch body and an operation structure;

the operating structure comprises an operating handle, a rotating shaft, an operating head shell, a pressing block, a sliding block spring, an operating piece, an operating spring and a limiting bushing; the operating handle is connected with the rotating shaft through bolt locking, the rotating shaft penetrates into the operating head shell, the pressing block is connected with the sliding block in a sliding manner and is installed in the operating head shell and matched with the rotating shaft, the sliding block is matched with the operating piece through the limiting bushing, the sliding block spring is installed in the operating head shell and connected with the sliding block, and the operating piece is matched with the operating piece spring and is installed and fixed in the switch body; the switch body comprises a contact spring and a contact support, the contact support is connected with the operating piece, and the contact spring is arranged in the contact support; the limiting bushing limits the travel of the sliding block and the operating piece, and the operating piece is matched with the structure of the contact support, so that the rotation limit angles of the operating handle to two sides are consistent;

when the operating head shell is fixedly connected with the switch body, the operating piece spring is compressed to provide precompression for the operating piece, so that the handle always maintains an initial state of 0 degrees; when the operating handle is rotated to the left side to reach a limit angle, the operating piece spring and the sliding block spring are compressed, the operating piece is pressed down, the state of the switch body is switched, and after the acting force applied to the operating handle is removed, the operating piece spring and the sliding block spring rebound, so that the operating handle returns to the initial 0-degree state; the operating handle is rotated to the right side to reach a limit angle, the slider spring is compressed, the operating piece is sprung, the state of the switch body is switched, and after the acting force applied to the operating handle is removed, the slider spring rebounds, so that the operating handle returns to the initial 0-degree state.

Further, the limit value of the angle of rotation of the operating handle to the left and right is 90 °.

According to the limit switch based on the handle bidirectional operation, the handle is operated to rotate left and right to drive the operating piece to move up and down to change the state of the limit switch, the switch stroke is not changed, the bidirectional rotation angle of the handle can reach an extreme value, the adaptation range of handle installation is enlarged, the switch installation difficulty of equipment manufacturers is reduced, and the limit switch has higher installation convenience under the use condition of limited space. The limit switch of one type can adapt to most of use scenes, simplifies equipment installation and material management difficulty, and improves factory material management efficiency.

Drawings

FIG. 1 is a schematic diagram of a limit switch based on two-way handle operation according to the present utility model;

FIG. 2 is a cross-sectional view of a limit switch according to the present utility model based on a two-way handle operation, wherein the handle is operated in an initial state of 0 degrees;

FIG. 3 is a cross-sectional view of a limit switch according to the present utility model based on a two-way operation of a handle, wherein the operating handle is rotated to the left;

fig. 4 is a cross-sectional view of a limit switch according to the present utility model based on a two-way operation of a handle, in which the operating handle is rotated rightward.

Detailed Description

In order to better understand the technical solution of the present utility model, the following detailed description is given by way of specific examples:

referring to fig. 1, the limit switch based on the bidirectional handle operation of the present utility model includes a switch body 7 and an operation structure.

The operating structure comprises an operating handle 1, a rotating shaft 9, an operating head shell 2, a pressing block 3, a sliding block 4, a sliding block spring 5, an operating piece 6, an operating spring 8 and a limiting bushing 12. The operating handle 1 is connected with the rotating shaft 9 through bolt locking, the rotating shaft 9 penetrates into the operating head shell 2, the pressing block 3 is connected with the sliding block 4 in a sliding mode, and the pressing block 3 is installed in the operating head shell 2 and matched with the rotating shaft 9. The slide block 4 is matched with the operating piece through a limiting bushing 12. The slider spring 5 is installed in the operating head shell 2 and connected with the slider 4, and the operating piece 6 and the operating piece spring 8 are installed in a matched manner and fixed in the switch body 7. The switch body 7 includes a contact spring 10 and a contact bracket 11, the contact bracket 11 is connected with the operating member, and the contact spring 10 is disposed in the contact bracket 11. The limiting bushing limits the travel of the sliding block and the operating piece, and the operating piece is matched with the structure of the contact support, so that the rotation limit angles of the operating handle to the two sides are consistent.

Please refer to fig. 2 to fig. 4. When the operating head shell is fixedly connected with the switch body, the operating piece spring is compressed to provide precompression for the operating piece, so that the handle always maintains the initial state of 0 degrees. When the operating handle is rotated to the left side to reach the limit of 90 degrees, the operating piece spring and the sliding block spring are compressed, the operating piece moves downwards, and the on/off state of the switch body is switched. After the acting force applied to the operating handle is removed, the operating piece spring and the sliding block spring rebound, so that the operating handle returns to the initial 0-degree state.

When the operating handle is rotated to the right side and reaches the limit of 90 degrees, the slider spring is compressed, the pressing block releases the degree of freedom of the operating piece, the operating piece bounces upward, and the switch body is switched in the on/off state. After the acting force applied to the operating handle is removed, the slider spring rebounds, so that the operating handle returns to the initial 0-degree state.

According to the utility model, the state switching of the limit switch is realized by driving the operating piece to move up and down by the left and right rotation of the operating handle, the rotation angle of the handle is obviously enlarged on the premise of not changing the internal travel of the original limit switch, the limit of the installation space is relatively small, the installation is convenient and quick, and the material management is simple.

It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the utility model, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the utility model as long as they fall within the true spirit of the utility model.

Claims (2)

1. Limit switch based on handle bidirectional manipulation, including switch body and operating structure, its characterized in that:

the operating structure comprises an operating handle, a rotating shaft, an operating head shell, a pressing block, a sliding block spring, an operating piece, an operating spring and a limiting bushing; the operating handle is connected with the rotating shaft through bolt locking, the rotating shaft penetrates into the operating head shell, the pressing block is connected with the sliding block in a sliding manner and is installed in the operating head shell and matched with the rotating shaft, the sliding block is matched with the operating piece through the limiting bushing, the sliding block spring is installed in the operating head shell and connected with the sliding block, and the operating piece is matched with the operating piece spring and is installed and fixed in the switch body; the switch body comprises a contact spring and a contact support, the contact support is connected with the operating piece, and the contact spring is arranged in the contact support; the limiting bushing limits the travel of the sliding block and the operating piece, and the operating piece is matched with the structure of the contact support, so that the rotation limit angles of the operating handle to two sides are consistent;

when the operating head shell is fixedly connected with the switch body, the operating piece spring is compressed to provide precompression for the operating piece, so that the handle always maintains an initial state of 0 degrees; when the operating handle is rotated to the left side to reach a limit angle, the operating piece spring and the sliding block spring are compressed, the operating piece is pressed down, the state of the switch body is switched, and after the acting force applied to the operating handle is removed, the operating piece spring and the sliding block spring rebound, so that the operating handle returns to the initial 0-degree state; the operating handle is rotated to the right side to reach a limit angle, the slider spring is compressed, the operating piece is sprung, the state of the switch body is switched, and after the acting force applied to the operating handle is removed, the slider spring rebounds, so that the operating handle returns to the initial 0-degree state.

2. A limit switch based on two-way handle operation according to claim 1, wherein the limit value of the angle of rotation of the handle to the left and right is 90 °.