CN209118946U - Microswitch buffers actuating mechanism - Google Patents
Microswitch buffers actuating mechanism Download PDFInfo
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- CN209118946U CN209118946U CN201822015849.2U CN201822015849U CN209118946U CN 209118946 U CN209118946 U CN 209118946U CN 201822015849 U CN201822015849 U CN 201822015849U CN 209118946 U CN209118946 U CN 209118946U
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- microswitch
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Abstract
A kind of microswitch disclosed by the utility model buffers actuating mechanism, it is good to be intended to provide a kind of anti-vibration, impact resistance and opening performance, be mainly used for the deceleration mechanism of microswitch, the utility model is achieved by following technical proposals: microswitch (2) actuated element contact is fixed by the backboard of T shape support arm (1)；T shape cross seat one end of T shape support arm is connected firmly on the connecting plate of lower section by spring connecting shaft (7), the other end is fixed on the connecting plate by spacer pin B, and the free end of T shape cross seat is by shaft (4) connection pressing rocker arm (3), in resistance arm fulcrum hole of the shaft by pressing rocker arm free position；Spring connecting shaft is connected to rocker shaft (8) by tension spring (5); rocker shaft hingedly presses rocker arm by the fork ear jack in pressing rocker arm fixing end; in a free state; presses the free end face of rocker arm to microswitch, presses rocker arm and rotated around the axis by the tension spring being connected on rocker shaft.
Description
Technical field
The utility model, in particular for protecting microswitch, is used about the deceleration mechanism for absorbing energy using spring
The buffer gear of microswitch impact energy is reduced to substitute traditional spring leaf.
Background technique
Microswitch is a kind of high-speed switch for pressing and actuating, because the smaller therefore named fine motion of contact spacing of its switch is opened
It closes, also known as sensitive switch.Its working principle is that outer mechanical force passes through actuated element (push-piece, button, lever, idler wheel etc.) for power
Act on movement reed, and after energy is accumulated to critical point, generate snap action, make to act the movable contact of reed end with
Fixed contact quick-make or disconnection.It is one kind by small stroke, little trick power, the switching device for switching on and off circuit,
Suitable for various automatic control devices.When external mechanical power acts on operating knob, operating knob is just moved downward, and passes through drag hook
By spring elongation.After spring is drawn to certain length, movable contact spring is moved downward rapidly, the contact of movable contact spring right end turn to it is following
Normally open contact contact, to realize the conversion of circuit.Microswitch has small contact separation and quick-acting mechanism, with defined
Stroke and defined power carry out the contact mechanism of switch motion, are covered by shell, outside have one kind of driver and drive rod
Switch.Not only shape is smaller, and the contact spacing of switch is also smaller, usually passes through filling with after wire harness at the terminal position
Resin fixes the plastic packaging terminal, the method eliminating the electrification position of exposing to improve antidrip.Be mainly used in electronic equipment,
Instrument and meter, household electrical appliance, Aeronautics and Astronautics, naval vessel field microswitch, movable plate is installed in shell, can be with movable plate phase
The contact of contact is also equipped with the terminal for connecting with external circuit in switch case.When button receives from external power
Or when stroke, movable plate will be made mobile and contact conducting with the associated terminal contact set, finally make in microswitch
The external circuit of terminal connection is turned on or off.
Microswitch is that on-off is realized by internal metal clips stress, sheet metal quilt at a distance from the contact of pedestal bubble point
Referred to as stroke.Since the ability of the anti-impact that is pressed of internal mechanism is weak, vibration resistance is poor, vulnerable to each portion of mechanical shock bring
The damage of position, it usually needs meet the impact in the range of acting characteristic, malfunction is avoided to impact.Malfunction impact refers to fine motion
Switch is being more than unseparated impact range in the defined time in use, due to the contact that impact is closed.Microswitch is connecing
When point switching, it may occur that beat, tremble, cause the failures such as noise jamming and the impulse failure of electronic loop and stereo set.It is micro-
Since contact can be lost in current switch, contact separation becomes larger dynamic switch, answers gap to increase from MD, then sensitivity can decline.Fine motion
Switch is for identical switching mechanism, and contact separation is smaller, answers gap from MD with regard to smaller, and sensitivity is also higher, mechanical aspects
Service life is also longer, but just unfavorable in terms of the opening performance of direct current and anti-vibration, shock resistance.In switching speed, microswitch
In addition to the speed envelope (economic pace) for effectively reducing electric arc amount, also there is the boundary of mechanical problem, when especially closed circuit, if opened
The impact energy of pass excessive velocities, travelling contact and fixed contact will become larger, and impact chattering (vibration or the friction of formation
Closure) electric arc can be generated, at this time can severe attrition contact, can cannot also open circuit sometimes, contact is caused to melt.It carries out this
The mechanism of quick acting generally will use and have dead point and (change to critical work when other states from State-jump
With point) spring mechanism.The mechanical reverse of quick-acting mechanism can generate reversing time.Travelling contact impacts vibration when fixed contact
Time of vibration can be generated.Crank-up time and time of vibration can make contact generate heat, and contact is caused to melt, and connect with electronic circuit
After connecing, it is also possible to the malfunction of electronic circuit can be caused.The drive rod of switch quickly recycles when being impacted, and may cause driving
Breakage, the shortening in service life of bar.When switch is fixed in installation, if directly spring washer fastening got on, spring washer may
It falls into resin and generates crack.In addition, excessive impact and harmonic wave may be generated whens using box spanner etc. when fastening screw,
Even result in the adhesion of contact and the breakage of switch.If there is temperature change sharply, thermal shock will lead to switch and loosen, and cause
Failure.Switch is when continuously being vibrated and impact, the abrasion powder of generation may cause contact poor contact and movement it is not normal,
The problems such as durability declines.In addition, if any excessive vibration and impact, it may occur that malfunction and breakage of contact etc., because
This must be installed in will not be vibrated and the position impacted and the direction that will not be resonated on.Microswitch failure,
Secondary connection contacts aging etc., will affect the safe operation of entire electric system.Short circuit causes switch broken in order to prevent
Damage, traditional microswitch mostly use external increase lever reed-type structure to increase the overtravel of microswitch and anti-pressing punching
Ability is hit, but under most use environments, the movement velocity of actuator is fast, big (the movement speed of such as a certain hatch door latch mechanism of impact
Degree has reached several metre per second (m/s)s), the buffering energy-absorbing function of lever reed-type structure is no longer able to satisfy requirement.
Utility model content
In order to solve the problems in the existing technology, the task of the utility model is to provide a kind of anti-vibration, shock resistance
Property and opening performance it is good, be mainly used for the reduction impact energy of microswitch microswitch buffering actuating mechanism, with solve
Under most use environments, the movement velocity of actuator is fast, impact is big, lever reed-type buffer gear energy-absorbing function be unsatisfactory for using
The problem of wanting, the service life of microswitch is improved.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of microswitch buffers actuating mechanism,
It include: the fixed body of fixed microswitch 2, it is characterised in that: the T shape support arm 1 of installation microswitch 2 is formed on fixed body, it is micro-
Dynamic 2 actuated element contact of switch is fixed by the backboard of T shape support arm 1；T shape cross seat one end of T shape support arm 1 passes through spring connecting shaft
7 connect firmly on the connecting plate of lower section, and the other end is fixed on the connecting plate by spacer pin B, and the free end of T shape cross seat is logical
The connection pressing rocker arm 3 of shaft 4 is crossed, shaft 4 passes through in the resistance arm fulcrum hole of pressing 3 free position of rocker arm；Spring connecting shaft 7 is logical
It crosses tension spring 5 and is connected to rocker shaft 8, rocker shaft 8 is hingedly pressed by the fork ear jack in pressing 3 fixing end of rocker arm and shaken
Arm 3 presses the free end face of rocker arm 3 to the actuated element contact of microswitch 2, pressing rocker arm 3 passes through company in a free state
Connect 4 rotation around the shaft of tension spring 5 on rocker shaft 8；To form microswitch buffering actuating mechanism.
The utility model has the following beneficial effects: compared with the prior art
The utility model connects firmly the connection in lower section by tension spring connecting shaft 7 in T shape cross seat one end of T shape support arm 1
Plate, the other end are fixed on connecting plate by spacer pin B, and the free end of T shape cross seat passes through the connection pressing rocker arm 3 of shaft 4, shaft 4
In resistance arm fulcrum hole by pressing 3 free position of rocker arm, the extension spring of formation absorbs microswitch actuator impact energy
The deceleration mechanism of amount substitutes traditional lever reed-type structure pressing microswitch, slows down impact of the actuator to microswitch,
The performance of good anti-vibration, impact resistance and anti-open circuit is provided for microswitch, is solved under most use environments, microswitch
The movement velocity of actuator is fast, impact is big, and prior art lever reed-type buffer gear energy-absorbing function is unsatisfactory for asking using what is wanted
Topic.
The utility model substitutes traditional lever reed-type structure using the pressing rocker arm for being connected with tension spring and goes to actuate
Pressing force can be improved from (1~2) newton to the even upper hectonewton of tens of newton, press rocker arm in actuator by microswitch
Stir lower rotation, tension spring is stretched acting, reduces actuator to the pressing impact energy of microswitch, overcomes fine motion
The ability of the anti-impact that is pressed of switch internal mechanism is weak, and vibration resistance is poor, vulnerable to the damage at each position of mechanical shock bring, keeps away
Exempt from microswitch misoperation impact, and then improves microswitch service life.
Detailed description of the invention
Fig. 1 is the organigram of the utility model microswitch buffering actuating mechanism.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the rearview of Fig. 1.
Fig. 4 is the A-A cross-sectional view of Fig. 3.
Fig. 5 is pressing rocker arm pressing microswitch position view.
In figure: 1T shape support arm, 2 microswitches, 3 pressing rocker arms, 4 shafts, 5 tension springs, 6 limited blocks, the connection of 7 springs
Axis, 8 rocker shafts.
The utility model is further illustrated with reference to the accompanying drawings and examples, but is not therefore limited in the utility model
Among the embodiment described range.All these designs should be regarded as the protection model of this technology disclosure of that and the utility model
It encloses.
Specific embodiment
Refering to fig. 1~Fig. 3.In the embodiment described below, a kind of microswitch buffers actuating mechanism, comprising: fixed
The fixed body of microswitch 2.The T shape support arm 1 of installation microswitch 2, the touching of 2 actuated element of microswitch are formed on the fixed body
Head is fixed by the backboard of T shape support arm 1；T shape cross seat one end of T shape support arm 1 connects firmly the connection in lower section by spring connecting shaft 7
On plate, the other end is fixed on the connecting plate by spacer pin B, and the free end of T shape cross seat is shaken by the connection pressing of shaft 4
Arm 3, shaft 4 pass through in the resistance arm fulcrum hole of pressing 3 free position of rocker arm；Spring connecting shaft 7 is connected to by tension spring 5
Rocker shaft 8, rocker shaft 8 hingedly press rocker arm 3 by the fork ear jack in pressing 3 fixing end of rocker arm, in a free state,
The free end face of rocker arm 3 is pressed to the actuated element contact of microswitch 2, presses rocker arm 3 by being connected on rocker shaft 8
4 rotation around the shaft of tension spring 5；To form microswitch buffering actuating mechanism, when actuator stirs pressing rocker arm 3 clockwise
Rotation, power arm is applied to microswitch 2 with contact contact force, as actuated element contact gradually protrudes into arrival predetermined stroke
When, tension spring 5 is stretched acting, and the stretching of tension spring 5 gradually decrease contact contact force will, and contact contact force will
It becomes zero, to slow down the impact energy that pressing microswitch 2 drives punch advance.
Refering to Fig. 4, Fig. 5.T shape support arm 1 is formed with the rectangle hole slot of assembly microswitch 2, the actuated element touching of microswitch 2
Free end of the head by rectangle hole slot backboard towards pressing rocker arm 3.Parallel microswitch 2, which is equipped with, in rectangle hole slot backside is driven member
Part contact can prevent pressing rocker arm 3 from exceeding the limited block 6 of allowed band to the pressing stroke of microswitch.Tension spring 5 connects
Between spring connecting shaft 7 and rocker shaft 8, rocker shaft 8 passes through pilot hole connection pressing rocker arm in pressing 3 fixing end of rocker arm
3, shaft 4 is by T shape cross seat and presses the resistance arm fulcrum hole flexible connection pressing rocker arm 3 on 3 power position of rocker arm.It is pressing
It presses and is formed with the limiting slot positioned at 4 rear of shaft on 3 inside power position of rocker arm, under free state, press the limit on rocker arm 3
Slot is maintained at the restraining position of spacer pin B by tension spring 5.
Above-described is only the preferred embodiment example of the utility model.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the principle of this utility model, several modifications and improvements can also be made, for example pass through reality
The size of EIRP carries out the automatic variation of multi gear rate, also extends to the application platform of other configurations phased array antenna, these
Alterations and modifications are regarded as belonging to the protection scope of the utility model.
Claims (7)
1. a kind of microswitch buffers actuating mechanism, comprising: the fixed body of fixed microswitch (2), it is characterised in that: fixed body
On be formed with the T shape support arm (1) of installation microswitch (2), microswitch (2) actuated element contact passes through the backboard of T shape support arm (1)
It is fixed；T shape cross seat one end of T shape support arm (1) is connected firmly on the connecting plate of lower section by spring connecting shaft (7), and the other end passes through
Spacer pin B is fixed on the connecting plate, and the free end of T shape cross seat passes through shaft (4) connection pressing rocker arm (3), shaft (4)
In resistance arm fulcrum hole by pressing rocker arm (3) free position；Spring connecting shaft (7) is connected to by tension spring (5) and is shaken
Arm shaft (8), rocker shaft (8) hingedly press rocker arm (3) by the fork ear jack in pressing rocker arm (3) fixing end, and pressing is shaken
Arm is rotated around the axis by the tension spring being connected on rocker shaft, to form microswitch buffering actuating mechanism.
2. microswitch as described in claim 1 buffers actuating mechanism, it is characterised in that: T shape support arm (1) is formed with assembly fine motion
Switch the rectangle hole slot of (2).
3. microswitch as claimed in claim 2 buffers actuating mechanism, it is characterised in that: the actuated element of microswitch (2)
Free end of the contact by rectangle hole slot backboard towards pressing rocker arm (3).
4. microswitch as claimed in claim 2 buffers actuating mechanism, it is characterised in that: be equipped in rectangle hole slot backside parallel
Microswitch (2) actuated element contact prevents pressing rocker arm (3) from exceeding the limit of allowed band to the pressing stroke of microswitch
Block (6).
5. microswitch as described in claim 1 buffers actuating mechanism, it is characterised in that: tension spring (5) is connected to spring
Between connecting shaft (7) and rocker shaft (8), rocker shaft (8) connects pressing by the pilot hole in pressing rocker arm (3) fixing end
Rocker arm (3), shaft (4) is by T shape cross seat and presses the resistance arm fulcrum hole flexible connection pressing on rocker arm (3) power position
Rocker arm (3).
6. microswitch as described in claim 1 buffers actuating mechanism, it is characterised in that: the power on the inside of pressing rocker arm (3)
It is formed with the limiting slot positioned at shaft (4) rear on position, under free state, the limiting slot in pressing rocker arm (3) passes through pulling force
Spring (5) is maintained at the restraining position of spacer pin B.
7. microswitch as described in claim 1 buffers actuating mechanism, it is characterised in that: in a free state, press rocker arm
(3) free end face presses rocker arm (3) by being connected on rocker shaft (8) to the actuated element contact of microswitch (2)
Tension spring (5) rotates around the shaft (4)；It stirs pressing rocker arm (3) when actuator to rotate clockwise, power arm is with contact contact force
Microswitch (2) are applied to, as when actuated element contact, which gradually protrudes into, reaches predetermined stroke, tension spring (5), which is stretched, to be done
The stretching of function, tension spring (5) gradually decrease contact contact force will, and contact contact force will become zero, thus slow down by
Press the impact of microswitch (2) driving punch advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822015849.2U CN209118946U (en) | 2018-12-04 | 2018-12-04 | Microswitch buffers actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822015849.2U CN209118946U (en) | 2018-12-04 | 2018-12-04 | Microswitch buffers actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209118946U true CN209118946U (en) | 2019-07-16 |
Family
ID=67207368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822015849.2U Active CN209118946U (en) | 2018-12-04 | 2018-12-04 | Microswitch buffers actuating mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN209118946U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585192A (en) * | 2018-12-04 | 2019-04-05 | 四川凌峰航空液压机械有限公司 | Reduce the deceleration device of microswitch impact energy |
| CN110890247A (en) * | 2019-11-19 | 2020-03-17 | 中车株洲电力机车有限公司 | Signal feedback mechanism for vacuum circuit breaker and vacuum circuit breaker |
-
2018
- 2018-12-04 CN CN201822015849.2U patent/CN209118946U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585192A (en) * | 2018-12-04 | 2019-04-05 | 四川凌峰航空液压机械有限公司 | Reduce the deceleration device of microswitch impact energy |
| CN109585192B (en) * | 2018-12-04 | 2024-01-02 | 四川凌峰航空液压机械有限公司 | Speed reducer for reducing impact energy of micro switch |
| CN110890247A (en) * | 2019-11-19 | 2020-03-17 | 中车株洲电力机车有限公司 | Signal feedback mechanism for vacuum circuit breaker and vacuum circuit breaker |
| CN110890247B (en) * | 2019-11-19 | 2022-01-18 | 中车株洲电力机车有限公司 | Signal feedback mechanism for vacuum circuit breaker and vacuum circuit breaker |
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