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CN-122025452-A - Switching device

CN122025452ACN 122025452 ACN122025452 ACN 122025452ACN-122025452-A

Abstract

The application discloses a switch device, which comprises a shell, a trigger assembly and a transmission assembly, wherein the shell is provided with a sealed installation cavity and a shaft hole communicated with the installation cavity and the outside of the shell, the trigger assembly is arranged in the installation cavity, the transmission assembly is arranged in the shaft hole in a penetrating way, one end of the transmission assembly penetrates into the installation cavity, is connected with the trigger assembly, and the other end of the transmission assembly penetrates out of the shell and is used for being matched with a detection object, so that the transmission assembly can rotate under the impact of the detection object outside the shell, and the first lead and the second lead are electrically conducted or disconnected. The switch device can realize the functions of connecting and disconnecting the first lead and the second lead while preventing water and dust, thereby further expanding the whole application range of the switch device.

Inventors

  • LU XIAOMIN
  • GUO ZHIHAI
  • HE ZHANRONG
  • ZHONG XIAOXIONG

Assignees

  • 日立电梯（中国）有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (12)

  1. 1. A switching device, comprising: the device comprises a shell (1), wherein the shell (1) is provided with a closed installation cavity (11) and a shaft hole (12) communicated with the installation cavity (11), and a fixed contact (13) used for being electrically connected with a first wire (8) is arranged in the installation cavity (11); -a trigger assembly (2), said trigger assembly (2) being movably arranged within said mounting cavity (11), said trigger assembly (2) being adapted to be electrically connected to a second wire (9), said trigger assembly (2) having an on-state in electrical contact with said fixed contact (13) and an off-state separated from said fixed contact (13); The transmission assembly (3), transmission assembly (3) rotationally wear to establish shaft hole (12) and with the pore wall sealing fit in shaft hole (12), the one end of transmission assembly (3) penetrate in installation cavity (11) and with trigger assembly (2) are connected, the other end of transmission assembly (3) wears outside casing (1) and is used for cooperating with detection object (7), transmission assembly (3) can be in the order of detection object (7) rotates, in order to drive trigger assembly (2) switch between on state and off state.
  2. 2. Switching device according to claim 1, characterized in that the triggering element (2) comprises a deformable spring plate (21), one end of the spring plate (21) is fixed on the transmission element (3) and is used for being electrically connected with the second conducting wire (9), a movable contact (211) is arranged on one side, close to the fixed contact (13), of the other end of the spring plate (21), the transmission element (3) can drive the movable contact (211) to be in electrical contact with the fixed contact (13) through the spring plate (21) so that the triggering element (2) can reach the conducting state, and the transmission element (3) can drive the movable contact (211) to be separated from the fixed contact (13) through the spring plate (21) so that the triggering element (2) can reach the disconnecting state.
  3. 3. Switching device according to claim 2, characterized in that the triggering element (2) further comprises a connection conductor (23), one end of the connection conductor (23) being connected to the reed (21) and the other end being adapted to be electrically connected to the second wire (9).
  4. 4. Switching device according to claim 2, characterized in that the triggering assembly (2) further comprises a limiting plate (22), one end of the limiting plate (22) is connected with the transmission assembly (3), and the limiting plate (22) is fixed on one side of the reed (21) close to the fixed contact (13).
  5. 5. The switching device according to claim 1, wherein the transmission assembly (3) comprises a transmission shaft (31), an inner swing arm (32) arranged in the mounting cavity (11) and an outer swing arm (33) arranged outside the shell (1), the transmission shaft (31) rotatably penetrates through the shaft hole (12) and is in sealing fit with a hole wall of the shaft hole (12), the part of the transmission shaft (31) in the mounting cavity (11) is an inner end, the part of the transmission shaft (31) outside the shell (1) is an outer end, the inner swing arm (32) is fixedly connected on the inner end of the transmission shaft (31) and is connected with the trigger assembly (2), the outer swing arm (33) is fixedly connected on the outer end of the transmission shaft (31), the outer swing arm (33) is used for being matched with the detection object (7), and when the outer swing arm (33) is in contact with the detection object (7), the transmission assembly (3) drives the trigger assembly (2) to enter the on state, and when the outer swing arm (33) is separated from the detection object (7).
  6. 6. The switching device according to claim 5, wherein the transmission assembly (3) further comprises a reset member (34), one end of the reset member (34) is fixed to the inner swing arm (32), the other end of the reset member is fixed to the inner wall of the mounting cavity (11), and the reset member (34) is used for driving the transmission assembly (3) to rotate when the outer swing arm (33) is separated from the detection object (7) so as to drive the trigger assembly (2) to enter the disconnected state.
  7. 7. The switching device according to claim 5, characterized in that a sealing ring (312) is arranged between the transmission shaft (31) and the shaft hole (12), one end of the sealing ring (312) extends into the installation cavity (11) and forms a limiting ring (313), and the limiting ring (313) is in clamping fit with the cavity wall of the installation cavity (11).
  8. 8. The switching device according to claim 5, characterized in that the outer swing arm (33) is fixed with a wheel axle (332), a roller is rotatably arranged on the wheel axle (332), and a limiting member (333) for limiting the separation of the roller is arranged on the wheel axle (332).
  9. 9. The switching device according to claim 8, wherein the outer swing arm (33) comprises a first arm (335) and a second arm (336) connected at an included angle, a connection between the first arm (335) and the second arm (336) is fixedly connected with an outer end portion of the transmission shaft (31), the roller comprises a driving wheel (337) and a safety gear (338), the driving wheel (337) is rotatably arranged on the first arm (335), and the safety gear (338) is rotatably arranged on the second arm (336).
  10. 10. The switching device according to claim 9, characterized in that the side of the housing (1) adjacent to the driving wheel (337) is provided with a relief groove (14), the relief groove (14) being adapted to provide a swing space for the driving wheel (337).
  11. 11. The switch device according to claim 5, wherein the housing (1) comprises a base (15) and a cover (16), a protective groove (151) is formed in the base (15), a protective strip (161) is arranged on the periphery of the cover (16), the protective strip (161) is inserted into the protective groove (151), and the cover (16) is in sealing fit with the base (15) so that the base (15) and the cover (16) jointly enclose the mounting cavity (11).
  12. 12. The switching device according to claim 11, wherein a collar (162) is provided on a side of the cover body (16) facing the base body (15), an inner end portion of the transmission shaft (31) is inserted into the collar (162), and a lubrication ring (163) is provided between the inner end portion of the transmission shaft (31) and the collar (162).

Description

Switching device Technical Field The application relates to the technical field of electrical equipment, in particular to a switching device. Background With the development of electrical equipment technology, switching devices have emerged that can detect component movement and automatically control the on and off of a circuit. In the related switch device, the on-off control of a circuit is realized through a shell with an installation cavity, a transmission component arranged on the shell and a trigger component arranged in the installation cavity. However, the switch device of the related art has a large overall structure, a large number of parts and complex assembly, and the normal use of the trigger assembly is also easily affected by the ash entering through the shell, so that the switch device has the requirements of humidity and cleanliness on the use environment, and the use convenience is affected. Disclosure of Invention Based on this, it is necessary to provide a switching device against the problem that the whole structure is easy to enter water and ash. A switching device, comprising: The shell is provided with a closed installation cavity and a shaft hole communicated with the installation cavity, and a fixed contact for electrically connecting with the first wire is arranged in the installation cavity; A trigger assembly movably disposed within the mounting cavity, the trigger assembly for electrical connection with a second wire, the trigger assembly having an on state in electrical contact with the stationary contact and an off state separated from the stationary contact; The transmission assembly is rotatably arranged in the shaft hole in a penetrating mode and is in sealing fit with the hole wall of the shaft hole, one end of the transmission assembly penetrates into the mounting cavity and is connected with the trigger assembly, the other end of the transmission assembly penetrates out of the shell and is used for being matched with the detection object, and the transmission assembly can rotate under the driving of the detection object so as to drive the trigger assembly to switch between a conducting state and a disconnecting state. In one embodiment, the trigger assembly comprises a deformable reed, one end of the reed is fixed on the transmission assembly and is used for being electrically connected with the second wire, a movable contact is arranged on one side, close to the fixed contact, of the other end of the reed, the transmission assembly can drive the movable contact to be in electrical contact with the fixed contact through the reed, so that the trigger assembly can reach a conducting state, and the transmission assembly can drive the movable contact to be separated from the fixed contact through the reed, so that the trigger assembly can reach an off state. In one embodiment, the trigger assembly further comprises a connecting conductor having one end connected to the reed and the other end for electrical connection to the second wire. In one embodiment, the trigger assembly further comprises a limiting plate, one end of the limiting plate is connected with the transmission assembly, and the limiting plate is fixed on one side of the reed close to the fixed contact. In one embodiment, the transmission assembly comprises a transmission shaft, an inner swing arm arranged in the installation cavity and an outer swing arm arranged outside the shell, the transmission shaft rotatably penetrates through the shaft hole and is in sealing fit with the hole wall of the shaft hole, the part of the transmission shaft in the installation cavity is an inner end part, the part of the transmission shaft outside the shell is an outer end part, the inner swing arm is fixedly connected to the inner end part of the transmission shaft and is connected with the trigger assembly, the outer swing arm is fixedly connected to the outer end part of the transmission shaft, the outer swing arm is used for being matched with a detection object, and when the outer swing arm is in contact with the detection object, the transmission assembly drives the trigger assembly to enter a conducting state, and when the outer swing arm is separated from the detection object, the transmission assembly drives the trigger assembly to enter a disconnecting state. In one embodiment, the transmission assembly further comprises a reset piece, one end of the reset piece is fixed on the inner swing arm, the other end of the reset piece is fixed on the inner wall of the installation cavity, and the reset piece is used for driving the transmission assembly to rotate when the outer swing arm is separated from the detection object so as to drive the trigger assembly to enter the disconnection state. In one embodiment, a sealing ring is arranged between the transmission shaft and the shaft hole, one end of the sealing ring stretches into the installation cavity to form a limiting ring, and the limiting ring is in clamping fit wit