CN-122000222-A - Push type switch with level linkage function

CN122000222ACN 122000222 ACN122000222 ACN 122000222ACN-122000222-A

Abstract

The invention provides a push switch with a level linkage function, which comprises a shell, a push assembly, a contact module and a locking reset module, wherein the push assembly comprises a push button, a connecting rod and a convex clamping block, the push button is arranged at the top end of the connecting rod, the connecting rod is arranged in a cavity of the shell along the axis direction of the shell and can reciprocate along the axis direction of the shell, the convex clamping block is positioned on the outer side wall of the connecting rod and is used for being clamped with a first clamping groove or a second clamping groove, the contact module comprises a first contact group and a second contact group which are arranged at intervals along the axis direction of the shell, and the locking reset module is connected with the push button and is used for locking the state of the push assembly when the push assembly moves to different positions and controlling the on-off state of the first contact group and the second contact group in cooperation with the movement of the push assembly. The invention can solve the technical problem that the push switch in the prior art can not realize high-low level switching in the closed state.

Inventors

ZHU MIN
SUN CHAO
HE PING
XU CE
HU GUANGFENG
WANG YUANYUAN
JIAO HAO
ZHANG JIAN
WU ZHEN
GUAN PING
GAO HONGLIANG
MA XIMING
TAN ZONGYU

Assignees

北京自动化控制设备研究所

Dates

Publication Date: 20260508
Application Date: 20251231

Claims (7)

1. The push switch with the level linkage function is characterized by comprising a shell (1), a push assembly (2), a contact module (3) and a locking reset module (4), The shell (1) is provided with a cavity for accommodating the pressing component (2), the contact module (3) and the locking reset module (4), an annular first clamping groove (11) and an annular second clamping groove (12) are formed in the inner side wall of the shell (1), and the first clamping groove (11) and the second clamping groove (12) are sequentially distributed along the axis direction of the shell; The pressing assembly (2) comprises a pressing button (21), a connecting rod (22) and a protruding clamping block (23), wherein the pressing button (21) is arranged at the top end of the connecting rod (22) and extends to the outer side of the shell (1), the connecting rod (22) is arranged in a cavity of the shell (1) along the axis direction of the shell (1) and can reciprocate along the axis direction of the shell (1), the protruding clamping block (23) is positioned on the outer side wall of the connecting rod (22), and the protruding clamping block (2) is used for being mutually clamped with the first clamping groove (11) or the second clamping groove (12) so as to lock the position of the pressing assembly (2); the contact module (3) is arranged at the bottom of the cavity of the shell (1) and comprises a first contact group (31) and a second contact group (32) which are arranged at intervals along the axis direction of the shell (1), and the first contact group (31) and the second contact group (32) realize self opening and closing along with the movement of the connecting rod (22), so that the on-off of a circuit is controlled; The locking reset module (4) is connected with the pressing button (21) and is used for locking the state of the pressing assembly (2) when the pressing assembly (2) moves to different positions and controlling the on-off state of the first contact group (31) and the second contact group (32) in cooperation with the movement of the pressing assembly (2); When the pressing component (2) is positioned at an initial non-pressing position, the locking reset module (4) locks the pressing component (2) at the initial non-pressing position, the first contact group (31) and the second contact group (32) are both in an off state, and the whole switch is in an off state; applying a first pressing operation to the pressing assembly (2), wherein the pressing assembly (2) moves to a first pressing position along the axial direction of the shell (1), the convex clamping block (2) is clamped into the first clamping groove (11) of the shell (1), the locking reset module (4) locks the position of the pressing assembly (2), the first contact group (31) is closed, the second contact group (32) is kept open, and the switch is integrally closed and outputs a high level; -applying a second pressing operation to the pressing assembly (2) in a first pressing position, the pressing assembly (2) being reset from the first pressing position to a second position, the raised clamping block (23) being disengaged from the first clamping groove (11) and clamped into the second clamping groove (12) on the housing (1), the locking reset module (4) locking the pressing assembly (2) in position, the first contact set (31) being open, the second contact set (32) being closed, the switch as a whole being closed and outputting a low level; And applying a third pressing operation to the pressing assembly (2) at the second position, resetting the pressing assembly (2) to an initial non-pressing position, and enabling the locking reset module (4) to lock the pressing assembly (2) at the initial non-pressing position again, wherein the first contact group (31) and the second contact group (32) are both restored to be in an off state, and the switch is integrally opened.
2. The push switch with the level linkage function according to claim 1, wherein the first contact group (31) comprises a first fixed contact (311) and a first movable contact (312), the first fixed contact (311) is fixed on the inner wall of the bottom of the shell (1) and is connected with an external high-level power supply, the first movable contact (312) is fixed at the bottom end of the connecting rod (22), and when the push assembly (2) moves to a first push position, the first movable contact (312) is contacted with the first fixed contact (311) to enable the first contact group (31) to be closed, and a circuit is connected with a high level; The second contact set (32) comprises a second fixed contact (321) and a second movable contact (322), the second fixed contact (321) is fixed on the inner wall of the bottom of the shell (1), is arranged at intervals with the first fixed contact (311) and is connected with an external low-level power supply, the second movable contact (322) is fixed on the side wall of the bottom end of the connecting rod (22) and is arranged at intervals with the first movable contact (312), and when the pressing assembly (2) moves to a second pressing position, the second movable contact (322) is contacted with the second fixed contact (321) to enable the second contact set (32) to be closed, and a circuit is connected with a low level.
3. The push switch with level linkage function according to claim 2, wherein the first movable contact (312) and the second movable contact (322) are vertically distributed at the bottom of the push assembly (2) with a space therebetween.
4. The push switch with level linkage function according to claim 2, wherein the voltage of the high level power supply is 5-12V dc voltage, and the voltage of the low level power supply is 0-3V dc voltage.
5. The push switch with the level linkage function according to claim 1, wherein the locking reset module (4) comprises an elastic reset piece (41), the elastic reset piece (41) is sleeved on the outer side of the connecting rod (22), the top end of the elastic reset piece (41) is abutted with the bottom of the push button (21), and the bottom end of the elastic reset piece (41) is abutted with the bottom of the cavity of the shell (1).
6. The push switch with level linkage function according to claim 5, wherein the elastic reset piece (41) is a coil spring, and the stiffness coefficient of the coil spring is satisfied that under the action of the push operation, the push assembly (2) can be moved against the elastic force of the spring, and after the push operation is cancelled, the push assembly (2) can be driven to reset to the corresponding position.
7. Push switch with level linkage function according to claim 1, characterized in that the housing (1) is made of insulating material.

Description

Push type switch with level linkage function Technical Field The invention belongs to the technical field of electrical switches, and particularly relates to a push switch with a level linkage function. Background In the fields of electrical control, electronic equipment, and the like, a push switch is widely used as a common control element for on-off control of a circuit. In the prior art, the working principle of the push switch is mainly a double-state circulation mode of 'one-time closing and one-time opening', namely, the switch can only realize the switching of the on state and the off state of a circuit, and the output switching of signals with different levels can not be realized on the premise of keeping the circuit closed. In some specific application scenarios, for example, an intelligent sensor control circuit, a small household appliance control module and the like, not only the on-off of the circuit needs to be controlled by a switch, but also high-level or low-level signals need to be switched and output according to actual requirements in a circuit closed state so as to realize different control functions. The prior push-type switch cannot meet the multi-state control requirement of 'closed-level switching-open'. To achieve the above-mentioned functions, an additional complex level adjustment circuit is often required, which not only increases the volume and cost of the device, but also may reduce the stability and reliability of the circuit, so a push switch capable of switching between high and low levels in the closed state is needed to solve the above-mentioned problems. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. The invention provides a push switch with a level linkage function, which comprises a shell, a push assembly, a contact module and a locking reset module, The shell is provided with a cavity for accommodating the pressing assembly, the contact module and the locking reset module, the inner side wall of the shell is provided with annular first clamping grooves and annular second clamping grooves, and the first clamping grooves and the second clamping grooves are sequentially distributed along the axial direction of the shell; The pressing component comprises a pressing button, a connecting rod and a convex clamping block, wherein the pressing button is arranged at the top end of the connecting rod and extends to the outer side of the shell; the convex clamping block is positioned on the outer side wall of the connecting rod and is used for being mutually clamped with the first clamping groove or the second clamping groove so as to realize the position locking of the pressing component; The contact module is arranged at the bottom of the cavity of the shell and comprises a first contact group and a second contact group which are arranged at intervals along the axis direction of the shell, and the first contact group and the second contact group realize the self opening and closing along with the movement of the connecting rod so as to control the on-off of a circuit; the locking reset module is connected with the pressing button, and is used for locking the state of the pressing assembly when the pressing assembly moves to different positions and controlling the on-off states of the first contact set and the second contact set in cooperation with the movement of the pressing assembly; When the pressing component is positioned at the initial non-pressing position, the locking reset module locks the pressing component at the initial non-pressing position, the first contact group and the second contact group are both in a disconnection state, and the whole switch is in a disconnection state; applying a first pressing operation to the pressing assembly, moving the pressing assembly to a first pressing position along the axial direction of the shell, clamping the convex clamping block into a first clamping groove of the shell, locking the position of the pressing assembly by the locking reset module, closing the first contact set, keeping the second contact set open, closing the whole switch and outputting a high level; Applying a second pressing operation to the pressing assembly at the first pressing position, resetting the pressing assembly from the first pressing position to the second position, enabling the convex clamping block to be separated from the first clamping groove and clamped into the second clamping groove on the shell, locking the resetting module to lock the position of the pressing assembly, opening the first contact group, closing the second contact group, keeping the whole switch closed and outputting low level; And applying a third pressing operation to the pressing assembly at the second position, resetting the pressing assembly to the initial non-pressing position, and locking the pressing assembly to the initial non-pressing position by the locking resetting module, wherein the