CN210223856U - Micro switch with stroke and action force adjusting function - Google Patents
Micro switch with stroke and action force adjusting function Download PDFInfo
- Publication number
- CN210223856U CN210223856U CN201920956772.0U CN201920956772U CN210223856U CN 210223856 U CN210223856 U CN 210223856U CN 201920956772 U CN201920956772 U CN 201920956772U CN 210223856 U CN210223856 U CN 210223856U
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- adjusting
- stroke
- sliding rod
- torsion spring
- shell
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Abstract
A micro switch with stroke and action force adjusting function is composed of a driving mechanism, a conversion mechanism and an output mechanism; the driving mechanism comprises a sliding rod, an adjusting washer, an adjusting screw, a transmission rod, a torsion spring, a positioning pin and a shell; the switching mechanism comprises a movable contact, a fixed contact, a contact spring, an insulator and an insulating cover plate; the output mechanism comprises a binding post, a lead and pouring sealant; the sliding rod of the driving mechanism extends out of the shell and is used for receiving an external control command; the lower end of the sliding rod is provided with an adjusting washer and an adjusting screw for adjusting the switch stroke; the transmission rod is of a rotary lever structure and transmits the action instruction of the sliding rod to the conversion mechanism; the transmission rod and the torsion spring are fixed on the shell through a positioning pin; the torsion spring has a plurality of mounting positions for adjusting the switching force.
Description
Technical Field
The utility model relates to a micro-gap switch with stroke and action power adjustment function is applicable to the higher occasion of stroke and action power precision requirement.
Background
At present, a common microswitch does not have a stroke and action force adjusting function, so that the range of the stroke and the action force is large, and the high-precision requirement of a user on the stroke and the action force cannot be met.
Disclosure of Invention
The utility model aims at overcoming prior art not enough, providing a micro-gap switch with stroke and action power adjustment function, the switch has stroke and action power guiding mechanism in actuating mechanism design, can be with stroke and action power control in predetermined precision range.
The utility model discloses the technical scheme who adopts: a micro switch with stroke and action force adjusting function is composed of a driving mechanism, a conversion mechanism and an output mechanism; the driving mechanism comprises a sliding rod, an adjusting washer, an adjusting screw, a transmission rod, a positioning pin, a torsion spring and a shell; the switching mechanism comprises a movable contact, a fixed contact, a contact spring, an insulator and an insulating cover plate; the output mechanism comprises a binding post, a lead and pouring sealant. The driving mechanism and the conversion mechanism are arranged in the cavity of the shell; the sliding rod of the driving mechanism extends out of the shell and is used for receiving an external control command; the lower end of the sliding rod is provided with an adjusting washer and an adjusting screw for adjusting the switch stroke; the transmission rod is of a rotary lever structure and transmits the action instruction of the sliding rod to the conversion mechanism; the transmission rod and the torsion spring are fixed on the shell through a positioning pin, and the torsion spring is provided with a plurality of installation gears and used for adjusting the switch action force.
The utility model has the advantages that: the micro switch is provided with a stroke and action force adjusting mechanism, and the adjustment of the switch stroke is realized by adjusting the number of adjusting washers; the adjustment of the switching action force is realized by selecting the installation gear of the torsion spring, and the fine control requirements of the switching stroke and the action force are met; compared with the existing microswitch, the structure has higher stroke and action force adjusting precision.
Drawings
Fig. 1 is a structural diagram (microswitch released state) of the present invention.
Fig. 2 is a structural diagram (microswitch pressed state) of the present invention.
Fig. 3 is a schematic view of the slide bar structure of the present invention.
Fig. 4 is a schematic view of the structure of the transmission rod of the present invention.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings and specific examples.
The utility model is composed of a driving mechanism, a conversion mechanism and an output mechanism as shown in fig. 1 and fig. 2.
The driving mechanism is an eccentric lever driving mechanism, the eccentric lever is driven by two parallel torsion springs to realize the on-off state conversion of the movable contact and the fixed contact, and the transmission operation of the switch conversion mechanism is realized through the movement of the sliding rod 1. As shown in fig. 1 and 2, the driving mechanism includes a sliding rod 1, an adjusting washer 2, an adjusting screw 3, a transmission rod 4, a positioning pin 5, a torsion spring 6, and a housing 15.
The housing 15 is used to mount the driving mechanism, the conversion mechanism, and the output mechanism, as shown in fig. 1 and 2. As shown in figure 3, the sliding rod 1 is composed of an upper sliding rod 21 and a lower sliding rod 22, the sliding rod 1 is arranged in an opening on the upper part of a shell 15 and can slide up and down along the opening, the length of the upper sliding rod 21 can be adjusted according to requirements, a step 23 at the lower end of the lower sliding rod 22 is contacted with the shell 15 and then stopped by a driving mechanism, and a threaded hole at the lower end of the lower sliding rod 22 is connected with an adjusting screw 3. The adjusting washer 2 is arranged in a cavity formed by the sliding rod 1 and the adjusting screw 3, and the micro-motion stroke can be adjusted by selecting the thickness of a single adjusting washer and increasing or decreasing the number of the adjusting washers 2. As shown in fig. 4, the transmission rod 4 is a rotary lever type structure, the transmission rod 4 and the torsion spring 6 are fixed in an inner cavity of the housing 15 through a positioning pin 5, an upper end of the torsion spring 6 is pressed against an end surface 41 of the transmission rod 4, a lower end of the torsion spring 6 is fixed in a positioning hole of the housing 15, and the pre-tightening force of the torsion spring 6 can be adjusted by selecting different positioning hole positions, so as to adjust the switching action force.
The switching mechanism includes a movable contact 7, a stationary contact 8, a contact spring 9, an insulator 11, and an insulating cover 12. The movable contact 7 is mounted in a mounting groove 42 on the right side of the transmission rod 4 and rotates around the positioning pin 5 under the driving of the transmission rod 4. When the movable contact 7 contacts with the fixed contact 8, the circuit of the switch is conducted. The static contact 8 is arranged in a cavity formed by the insulator 11 and the insulating cover plate 12, and positive pressure required for stable contact of the movable contact 7 and the static contact 8 is provided by the contact spring 9. The output mechanism outputs the electric signal of the micro switch in a mode that a wiring terminal 10 is welded with a wire, and the wire is fixed through pouring sealant 14.
The utility model discloses work flow:
the microswitch is switched from a loose state to a compact state, as shown in fig. 1, the sliding rod 1 moves downwards under the action of axial external force, the sliding rod 1 drives the transmission rod 4 to rotate anticlockwise around the positioning pin 5, when the movable contact 7 arranged on the transmission rod is contacted with the fixed contact 8, the circuit of the switch is conducted, and at the moment, the circuit switching of the switch is completed (namely, the microswitch is switched from the loose state to the compact state as shown in fig. 2).
The microswitch is switched from a pressing state to a loosening state, as shown in fig. 2, when the sliding rod 1 is in the pressing state, the torsion spring 6 drives the transmission rod 4 to rotate clockwise around the positioning pin 5 when external force is removed, the transmission rod 4 drives the movable contact 7 to be separated from the fixed contact 8, the switch completes circuit switching from conduction to disconnection, and then the transmission rod 4 is brought to the sliding rod 1 to continue to move upwards until the push rod step 23 meets the inner wall of the shell 15 to stop.
Claims (5)
1. A micro switch with stroke and action force adjusting function is composed of a driving mechanism, a conversion mechanism and an output mechanism; the method is characterized in that: the driving mechanism comprises a sliding rod, an adjusting washer, an adjusting screw, a transmission rod, a torsion spring, a positioning pin and a shell, the sliding rod is arranged in a hole in the upper portion of the shell, the adjusting washer and the adjusting screw are designed at the lower end of the sliding rod, the transmission rod is of a rotary lever structure and transmits an action instruction of the sliding rod to the conversion mechanism, and the transmission rod and the torsion spring are fixed to the shell through the positioning pin.
2. A microswitch having stroke and actuation force adjustment capability according to claim 1 wherein: the driving mechanism is provided with a stroke adjusting mechanism, the stroke adjusting mechanism consists of a sliding rod, adjusting washers and adjusting screws, and the thickness of each adjusting washer and the number of the adjusting washers can be selected according to the requirement of the adjusting precision range.
3. A microswitch having stroke and actuation force adjustment capability according to claim 1 wherein: the driving mechanism is provided with an action force adjusting mechanism, the action force adjustment is realized by selecting different torsion spring installation gears, and the number of the adjustment gears can be set according to the requirement of the adjustment precision range.
4. A microswitch having stroke and actuation force adjustment capability according to claim 1 wherein: the switching mechanism comprises a movable contact, a fixed contact, a contact spring, an insulator and an insulating cover plate.
5. A microswitch having stroke and actuation force adjustment capability according to claim 1 wherein: the output mechanism comprises a binding post, a lead and pouring sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920956772.0U CN210223856U (en) | 2019-06-19 | 2019-06-19 | Micro switch with stroke and action force adjusting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920956772.0U CN210223856U (en) | 2019-06-19 | 2019-06-19 | Micro switch with stroke and action force adjusting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210223856U true CN210223856U (en) | 2020-03-31 |
Family
ID=69933710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920956772.0U Active CN210223856U (en) | 2019-06-19 | 2019-06-19 | Micro switch with stroke and action force adjusting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210223856U (en) |
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2019
- 2019-06-19 CN CN201920956772.0U patent/CN210223856U/en active Active
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