CN210535553U

CN210535553U - Microswitch with adjustable pressing stroke

Info

Publication number: CN210535553U
Application number: CN201921713683.XU
Authority: CN
Inventors: 廖聪锐; 陈龙浩
Original assignee: Huizhou Hongbao Electrical Appliance Co ltd
Current assignee: Huizhou Hongbao Electrical Appliance Co ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-05-15
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a microswitch with adjustable pressing stroke, which comprises a pressing mechanism, a stroke adjusting mechanism, a first terminal, a second terminal and a connecting sheet, wherein the first terminal and the second terminal are both fixedly arranged, the connecting sheet is arranged on the first terminal, and the pressing mechanism drives the connecting sheet to act to contact with or separate from the second terminal; the stroke adjusting mechanism comprises a screw, the screw is movably arranged in the first terminal and the connecting sheet in a penetrating mode and is in threaded connection with the pressing mechanism, and the connecting sheet is arranged between the first terminal and the pressing mechanism. The utility model is used for micro-gap switch can adjust micro-gap switch button's stroke.

Description

Microswitch with adjustable pressing stroke

Technical Field

The utility model relates to a circuit switch technical field, concretely relates to press stroke adjustable micro-gap switch.

Background

The connection and disconnection are functions commonly used in circuits, and the functions are generally realized by circuit switches, for example, a lighting switch in a household circuit controls the on and off of an electric lamp, a keyboard switch on a computer controls the on and off of a circuit to realize information input, a switch on an electrical appliance to control the on and off of the electrical appliance controls the operation or stop of the electrical appliance, and the like. The microswitch is a circuit switch which is a switch commonly used in an electrical appliance structure, the microswitch is connected or disconnected by pressing a button to realize the connection or disconnection of the switch, sometimes the button is required to have different pressing strokes according to the use environments of different electrical appliances, but the stroke of the button of the existing microswitch is fixed, and the requirements of different use environments cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem to not enough in the background art, provide the micro-gap switch of stroke adjustable of pressing that can solve.

In order to solve the technical problem, the technical scheme of the utility model is that: a microswitch with an adjustable pressing stroke comprises a pressing mechanism, a stroke adjusting mechanism, a first terminal, a second terminal and a connecting sheet, wherein the first terminal and the second terminal are fixedly arranged, the connecting sheet is arranged on the first terminal, and the pressing mechanism drives the connecting sheet to act to contact with or separate from the second terminal; the stroke adjusting mechanism comprises a screw, the screw is movably arranged in the first terminal and the connecting sheet in a penetrating mode and is in threaded connection with the pressing mechanism, and the connecting sheet is arranged between the first terminal and the pressing mechanism.

Further, the stroke adjusting mechanism further comprises a spring, wherein the spring is sleeved on the periphery of the screw and clamped between the first terminal and the connecting sheet.

Further, the connecting piece comprises a supporting part and an elastic abutting part, and the supporting part and the elastic abutting part are oppositely arranged; the first terminal is provided with a supporting position and an abutting position, and the supporting position and the abutting position are arranged back to back; the supporting part is abutted on the supporting position, and the elastic abutting part is abutted on the abutting position.

Furthermore, the connecting sheet is of a long frame-shaped structure, and the supporting part and the elastic abutting part are respectively arranged on two opposite sides in the connecting sheet of the frame-shaped structure; the first terminal is provided with an installation plate which is inserted into the connecting sheet of the frame-shaped structure; the support position and the abutting position are arranged on the mounting plate in a back mode.

Furthermore, the connecting piece is of an I-shaped structure, the supporting parts and the elastic abutting parts are arranged in two groups, and the supporting parts and the elastic abutting parts are respectively arranged at opposite positions on the inner side of the connecting piece of the I-shaped structure; be provided with two sets of mounting panels on the first terminal, support position and butt phase back of the body setting on the mounting panel, every group the mounting panel is installed with a set of mounting panel respectively.

Furthermore, contact pieces are arranged on the connecting piece and the second terminal, and the connecting piece is in contact with the second terminal through the contact pieces.

Furthermore, the first terminal and the second terminal are sleeved on the pin, and the first terminal and the second terminal are arranged at intervals through an insulator.

Further, the pin column comprises an inner pin, an outer pin and a clamp spring, the outer pin is an insulating pin, the first terminal, the second terminal and the insulator are all sleeved on the outer pin, and the inner pin and the clamp spring fix the first terminal, the second terminal and the insulator together.

The utility model discloses the beneficial effect who realizes mainly has following several: adopt the screw as stroke adjustment mechanism, when pressing mechanism's stroke needs to be adjusted, come adjusting screw to expose partial length through adjusting screw's the spiral shell depth on pressing mechanism, thereby adjust the maximum interval of pressing mechanism and the fixed first terminal that sets up, and then can adjust pressing mechanism and connection piece stroke, realize the regulation of micro-gap switch press stroke, make micro-gap switch can be adapted to the service environment of different press stroke demands, and this stroke adjustment mechanism simple structure, make micro-gap switch's equipment convenient, use is reliable.

Drawings

Fig. 1 is a schematic view of an overall structure of a microswitch with adjustable pressing stroke according to an embodiment of the present invention;

fig. 2 is a schematic longitudinal sectional structure view of a microswitch with adjustable pressing stroke according to an embodiment of the present invention;

fig. 3 is an exploded schematic view of a microswitch with adjustable pressing stroke according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a first terminal of a microswitch with adjustable pressing stroke according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a connecting piece of a microswitch with adjustable pressing stroke in an embodiment of the invention;

fig. 6 is a schematic view of an overall structure of a microswitch with adjustable pressing stroke according to a second embodiment of the present invention;

fig. 7 is a schematic view of a longitudinal cross-sectional structure of a microswitch with an adjustable pressing stroke according to a second embodiment of the present invention;

fig. 8 is an exploded schematic view of a microswitch with adjustable pressing stroke according to the second embodiment of the present invention;

fig. 9 is a schematic structural view of a first terminal of a microswitch with adjustable pressing stroke according to a second embodiment of the present invention;

fig. 10 is a schematic structural view of a connection piece of a microswitch with adjustable pressing stroke according to the second embodiment of the present invention.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

Detailed Description

To facilitate understanding for those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples.

Example one

Referring to fig. 1 to 5, a microswitch with an adjustable pressing stroke adapts to different use environments and requirements by adjusting the pressing stroke. The micro switch comprises a pressing mechanism 1, a stroke adjusting mechanism 2, a first terminal 3, a second terminal 4 and a connecting sheet 5, wherein the first terminal 3, the second terminal 4 and the connecting sheet 5 are all conductive metal structures and can be formed by punching. The first terminal 3 and the second terminal 4 are both fixedly arranged, the first terminal 3 and the second terminal 4 can be fixed on a shell of a switch or equipment using a microswitch, and other special structures can also be adopted for fixing. The connecting sheet 5 is arranged on the first terminal 3, a lever connection mode can be adopted, a fulcrum is arranged on the first terminal 3, the connecting sheet 5 is connected to the first terminal 3 in a lever mode, the pressing mechanism 1 presses the connecting sheet 5 to rotate on the fulcrum of the first terminal 3, and therefore the connecting sheet 5 is driven to act to be in contact with or separated from the second terminal 4, and the electric connection or disconnection between the connecting sheet 5 and the second terminal 4 is achieved; the connection of the connecting piece 5 and the first terminal 3 may also adopt other common connection structures. One or two second terminals 4 can be arranged, and when one second terminal 4 is arranged, an on-off switch of a circuit connected with the first terminal 3 can be formed; in the case where two switches are provided, two circuits formed by the first terminal 3 and the two second terminals 4 may be formed, and the connection piece 5 may be switched between the two second terminals 4, and in this embodiment, the case where one second terminal 4 is provided will be described as an example. The connecting sheet 5 is electrically connected or disconnected with the second terminal 4, and the first terminal 3 is electrically connected with the connecting sheet 5, so that the circuit connected with the second terminal 4 and the first terminal 3 can be switched on or off.

Referring to fig. 1 to 5, the stroke adjusting mechanism 2 includes a screw 21, the end of the screw 21 is threaded, and the end close to the nut is a smooth rod structure without threads, the first terminal 3 is provided with a through hole 34, the connecting piece 5 is provided with a through hole 54, the diameters of the through hole 34 and the through hole 54 are larger than the diameter of the smooth rod structure part of the screw 21, so that the screw 21 is freely connected with the first terminal 3 and the connecting piece 5 when the screw 21 is inserted into the through hole in the first terminal 3 and the connecting piece 5, and the smooth rod structure of the screw 21 can freely move in the first terminal 3 and the connecting piece 5; the screw portion of the screw 21 is screwed to the pressing mechanism 1, and the connecting piece 5 is provided at a position between the first terminal 3 and the pressing mechanism 1, so that the connecting piece 5 can be pressed into or out of contact with the second terminal 4 by the pressing of the pressing mechanism 1. When the stroke of pressing mechanism 1 needs to be adjusted, the length of the exposed part of screw rod 21 is adjusted through the screw-in depth of adjusting screw 21 on pressing mechanism 1, thereby adjusting the maximum distance between pressing mechanism 1 and the fixed first terminal 3 that sets up, and then the stroke of pressing mechanism 1 and connecting sheet 5 can be adjusted, realize the regulation of micro-gap switch pressing stroke, make micro-gap switch can be adapted to the service environment of different pressing stroke demands, and this stroke adjustment mechanism simple structure, make micro-gap switch's equipment convenient, use reliably. The pressing mechanism 1 is preferably provided with two parts, namely a button 11 and a nut 12, wherein the nut 12 is in threaded connection with a screw 21 and abuts against the connecting piece 5; the button is made of insulating materials and is pressed on the nut 12 in a crimping mode, and the microswitch is conveniently pressed.

Referring to fig. 1 to 3, as a further preferred scheme, the stroke adjusting mechanism 2 further includes a spring 22, wherein the spring 22 is sleeved on the periphery of the screw 22 and clamped between the first terminal 3 and the connecting piece 5; the spring 22 is a compression spring, and is in a compressed state under the action of the first terminal 3 and the connecting piece 5 after being installed, so that the connecting piece 5 is sprung to a position close to the nut 12. The connecting piece 5 is in a state of abutting against the nut 12 under the action of the elastic force of the spring under a natural state, namely in a state of being farthest away from the first terminal 3, through the spring 22, when the button 11 is pressed, the connecting piece 5 can start to act from a position farthest away from the first terminal 3, all strokes (namely, the distance between the nut 12 and the first terminal 3) of the connecting piece 5 are effective strokes, so that stroke adjustment of the micro switch is more accurate, and the sensitivity of the micro switch during use is higher; moreover, the spring 22 can provide elastic restoring force for the pressing mechanism 1 and the connecting piece 5, and a reset structure is not required to be additionally arranged, so that the structure of the microswitch is simplified.

Referring to fig. 2, 4 and 5, in the present embodiment, the connecting piece 5 and the first terminal 3 adopt a lever structure connection manner, the connecting piece 5 includes a supporting portion 51 and an elastic abutting portion 52, and the supporting portion 51 is opposite to the elastic abutting portion 52; the support portion 51 and the elastic contact portion 52 can be formed by stamping on the connecting piece 5, and the elastic contact portion 52 is stamped into an arc-shaped sheet structure to provide elasticity. The first terminal 3 is provided with a supporting position 31 and an abutting position 32, the supporting position 31 is opposite to the abutting position 32, a mounting plate 33 standing on the first terminal 3 can be punched on the first terminal 3, and two sides of the mounting plate 33 are respectively provided with a groove as the supporting position 31 and the abutting position 32. The supporting part 51 is abutted on the supporting position 31 on one side of the mounting plate 33, and the position where the supporting part 51 is abutted on the supporting position 31 serves as a fulcrum of the lever movement of the connecting sheet 5 on the mounting plate 33; the elastic contact part 52 is contacted with the contact position 32 on the other side of the mounting plate 33 through the elastic force, and the connecting piece 5 and the mounting plate 33 are always connected together and are not separated. Adopt above-mentioned structure to realize the lever connection of connection piece 5 on first terminal 3 for connection structure is simple, need not the equipment of structures such as screw, and the equipment is convenient, also can guarantee the reliability that micro-gap switch used.

Referring to fig. 4 and 5, the connection piece 5 and the first terminal 3 in this embodiment adopt the following structures: the connecting piece 5 is a long frame-shaped structure, and the supporting part 51 and the elastic abutting part 52 are respectively arranged on two opposite sides in the connecting piece 5 of the frame-shaped structure; the connecting sheet 5 can be manufactured by punching a sheet structure, the supporting part 51 and the elastic abutting part 52 are punched in the middle of the sheet structure, the through holes 54 and the through holes 53 are punched on two sides respectively, and a certain distance is reserved between the supporting part 51 and the elastic abutting part 52 after punching, so that the connecting sheet is convenient to mount on the mounting plate 33. The first terminal 3 is provided with a mounting plate 33, and the mounting plate 33 can be punched upright inside the planar first terminal 3. The support portion 31 is disposed on the mounting plate 33 opposite to the contact portion 32, and a groove-shaped structure may be formed as the support portion 31 and the contact portion 32 by pressing. The mounting plate 33 is inserted into the connecting piece 5 of the frame-like structure at a position between the support portion 51 and the elastic contact portion 52, the support portion 51 is in contact with the support portion 31, and the elastic contact portion 52 is in contact with the contact portion 32.

Referring to fig. 1 to 3, in order to avoid poor contact when the connecting sheet 5 contacts the second terminal 4, contact sheets 6 are disposed on both the connecting sheet 5 and the second terminal 4, and the connecting sheet 5 contacts the second terminal 4 through the contact sheets 6. The contact piece 6 is preferably in a circular arc or spherical convex structure, so that the contact between the connecting piece 5 and the second terminal 4 is easier to conduct. The connection piece 5 may be provided with a through hole 53, and the second terminal 4 may be provided with a through hole, and the contact piece 6 may be caulked in the through hole.

Referring to fig. 1 to 3, the first terminal 3 and the second terminal 4 in the present embodiment are fixedly disposed in the following manner: the first terminal 3 and the second terminal 4 are sleeved on the pin 7, and the first terminal 3 and the second terminal 4 are arranged at intervals through the insulator 8, so that the first terminal 3 and the second terminal 4 can be fixed, and the insulation connection between the first terminal 3 and the second terminal 4 is ensured. The insulator 8 may be a porcelain knob.

Referring to fig. 1 to 3, in order to facilitate the fixed installation of the first terminal 3 and the second terminal 4 of the micro switch, the pin 7 is provided with a structure including an inner pin 71, an outer pin 72 and a snap spring 73, the inner pin 71 and the snap spring 73 may be of a metal structure which is easy to mold and has high strength, the outer pin 72 may be an insulating pin, and may be a knob insulator; the first terminal 3, the second terminal 4 and the insulator 8 are all sleeved on the outer pin 72, one insulator 8 is arranged between the first terminal 3 and the second terminal 4 and outside the first terminal 3 and the second terminal 4 for insulation protection, and the clamp spring 73 is clamped at one end of the outer pin 72 after installation (the other end of the inner pin 71 is blocked by a baffle plate), so that the first terminal 3, the second terminal 4 and the insulator 8 are fixed together. The first terminal 3 is provided with a through hole 35 which is convenient to be installed with the outer pin 72; the first terminal 3 is further provided with a connecting end 37, and the second terminal 4 is also provided with a connecting end, so that the microswitch is conveniently connected with an external circuit.

The microswitch assembly process of the embodiment is as follows: fixing a first terminal 3 and a second terminal 4 on a pin 7, and connecting the first terminal and the second terminal together in an insulating way through an insulator 8; the connecting piece 5 is then mounted on the first terminal 3, and the spring 22, the screw 21 and the nut 12 and the button 11 are then mounted. Therefore, the assembly of the micro switch is completed, the button 11 can be pressed on the first terminal 3 to control the on-off of the switch, and under the natural state, due to the action of the spring 22, one end of the connecting sheet 5 close to the second terminal 4 is pressed down to be separated from the second terminal 4 above, so that the switch is in an off state; when the button 11 is pressed, one end of the connecting sheet 5 close to the second terminal 4 is tilted upwards to contact with the second terminal 4 above, and the micro switch is closed; the microswitch is continuously closed when the button 11 is continuously pressed and is immediately opened when the button 11 is released. When the pressing stroke of the microswitch needs to be adjusted, the depth of the adjusting screw 21 screwed into the nut is only needed.

Example two

Referring to fig. 6 to 10, the general structure, assembly and use of the microswitch with adjustable pressing stroke in the present embodiment are the same as those in the first embodiment, and the same parts are not described herein again, and only the differences will be described below:

referring to fig. 9 and 10, in the present embodiment, the connecting piece 5 is in an "i" shape, two sets of the supporting portions 51 and the elastic abutting portions 52 are respectively disposed, and the supporting portions 51 and the elastic abutting portions 52 are respectively disposed at opposite positions inside the connecting piece 5 in the "i" shape; the connecting piece 5 of the above structure may be formed by press molding, and the specific structure of each of the supporting portion 51 and the elastic abutting portion 52 is the same as that in the first embodiment. Two groups of mounting plates 33 are arranged on the first terminal 3, and the positions of the mounting plates 33 are matched with the gap between the support part 51 and the elastic abutting part 52 on the connecting sheet 5; the supporting position 31 is arranged on each mounting plate 33 opposite to the abutting position 32, and the positions of the supporting position 31 correspond to the supporting portion 51 and the elastic abutting portion 52. When the installation is carried out, each group of the installation plates 33 is respectively installed with one group of the installation plates 33, the supporting part 51 is abutted with the supporting position 31, and the elastic abutting part 52 is abutted with the abutting position 32.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A microswitch with adjustable pressing stroke is characterized in that: the device comprises a pressing mechanism (1), a stroke adjusting mechanism (2), a first terminal (3), a second terminal (4) and a connecting sheet (5), wherein the first terminal (3) and the second terminal (4) are fixedly arranged, the connecting sheet (5) is installed on the first terminal (3), and the pressing mechanism (1) drives the connecting sheet (5) to act to contact with or separate from the second terminal (4); the stroke adjusting mechanism (2) comprises a screw (21), the screw (21) is movably arranged in the first terminal (3) and the connecting sheet (5) in a penetrating mode and is in threaded connection with the pressing mechanism (1), and the connecting sheet (5) is arranged between the first terminal (3) and the pressing mechanism (1).

2. The adjustable push stroke microswitch of claim 1, wherein: the stroke adjusting mechanism (2) further comprises a spring (22), wherein the spring (22) is sleeved on the periphery of the screw (21) and clamped between the first terminal (3) and the connecting piece (5).

3. A microswitch according to claim 1 or 2, wherein: the connecting piece (5) comprises a supporting part (51) and an elastic abutting part (52), wherein the supporting part (51) is opposite to the elastic abutting part (52); the first terminal (3) is provided with a supporting position (31) and an abutting position (32), and the supporting position (31) and the abutting position (32) are arranged in a reverse manner; the supporting part (51) is abutted against the supporting position (31), and the elastic abutting part (52) is abutted against the abutting position (32).

4. A microswitch with adjustable press stroke according to claim 3, wherein: the connecting piece (5) is of a long frame-shaped structure, and the supporting part (51) and the elastic abutting part (52) are respectively arranged on two opposite sides in the connecting piece (5) of the frame-shaped structure; the first terminal (3) is provided with an installation plate (33), and the installation plate (33) is inserted into the connecting sheet (5) of the frame-shaped structure; the supporting position (31) and the abutting position (32) are arranged on the mounting plate (33) in a reverse manner.

5. A microswitch with adjustable press stroke according to claim 3, wherein: the connecting piece (5) is of an I-shaped structure, two groups of supporting parts (51) and two groups of elastic abutting parts (52) are arranged, and the supporting parts (51) and the elastic abutting parts (52) are respectively arranged at opposite positions on the inner side of the connecting piece (5) of the I-shaped structure; be provided with two sets of mounting panel (33) on first terminal (3), support position (31) and butt position (32) and set up on mounting panel (33) mutually, every group mounting panel (33) are installed with a set of mounting panel (33) respectively.

6. A microswitch with adjustable press stroke according to claim 3, wherein: the connecting sheet (5) and the second terminal (4) are both provided with a contact sheet (6), and the connecting sheet (5) is in contact with the second terminal (4) through the contact sheet (6).

7. The adjustable push stroke microswitch of claim 6, wherein: the first terminal (3) and the second terminal (4) are sleeved on the pin (7), and the first terminal (3) and the second terminal (4) are arranged at intervals through an insulator (8).

8. The adjustable push stroke microswitch of claim 7, wherein: the pin column (7) comprises an inner pin (71), an outer pin (72) and a clamp spring (73), the outer pin (72) is an insulating pin, the first terminal (3), the second terminal (4) and the insulator (8) are all sleeved on the outer pin (72), and the inner pin (71) and the clamp spring (73) fix the first terminal (3), the second terminal (4) and the insulator (8) together.