CN101154534A - Force induced switch and its application - Google Patents
Force induced switch and its application Download PDFInfo
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- CN101154534A CN101154534A CNA2007100709963A CN200710070996A CN101154534A CN 101154534 A CN101154534 A CN 101154534A CN A2007100709963 A CNA2007100709963 A CN A2007100709963A CN 200710070996 A CN200710070996 A CN 200710070996A CN 101154534 A CN101154534 A CN 101154534A
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Abstract
The invention relates to a stress sensing switch, comprising a stress transmission device, a contact switch and a housing device, wherein, the stress transmission device comprises a first spring, a second spring and a step shaft provided with a second switch contact; the housing device comprises a shaft sleeve provided with an internal shoulder and a shaft tube connected with the shaft sleeve through one end; the step shaft is inserted into the shaft sleeve and the shaft tube; the first spring is sheathed between a first step face and a second step face of the step shaft; one end of the first spring is pressed against the internal shoulder of the shaft sleeve, while the other end of the first spring is pressed against the first step face; the contact switch is arranged inside the shaft sleeve fixedly and is provided with a stopper; one end of the second spring is pressed against the stopping face of the stopper, while the other end of the second spring is pressed against the second step face; the step shaft is also provided with a stopping block which is pressed against the upper end face of the shaft sleeve. Compared with the prior art, the sensing switch of the invention has a more compact structure an smaller volume, can detect and control the size of the external force, and can restore when on force is applied, thereby improving the reliability of the sensing of the external force.
Description
Technical field
The present invention relates to a kind of to the stressed switch controlling device of responding to, and the application of this force induced switch in automatic positioning shooting technical field.
Background technology
Much more general common push types and the pulling types of adopting of common mains switch all need manual energized during use, give a lot according to extraneous stress condition and the use occasion that control switch opens and closes brings some inconvenience.
For this reason, people have designed force induced switch, and the external world is stressed and closure, opening action switch combine, and can realize easily need not manually just can be according to the purpose of the automatic energized of force-bearing situation.
As application number is that the Chinese utility model patent " submersible type hydraulic coupling inductive switch " of 88212154.5 (notification number is CN2034737U) discloses a kind of hydraulic coupling inductive switch, it is the principle that the pressure that utilizes water tower or basin bottom changes along with the variation of liquid level height, design the pressure that a hydraulic coupling tablet acceptance is changing, utilize this power to realize controlling the energising or the outage of motor, reach the water level purpose of control automatically.This hydraulic coupling inductive switch can be realized the water tower level autocontrol switch, but structure is compact inadequately, adopts two contact chip structures to realize the conducting of circuit, structure relative complex.And for example the patent No. is that the Chinese utility model " GRAVITY CONTROL mains switch " of ZL200420092542.8 (notification number is CN2733568Y) comprises the electrode slice of two spaced and parallel and the elastic insulating layer between them, two outsides of electrode slice are compounded with insulating barrier, electrode slice is provided with a plurality of relative female contact, to should being cavity between the electrode slice at female contact place; On each described electrode slice, all be connected with the electrode connection terminal.During use, the utility model is installed on the seat of vehicle or on other position, is sitting on the seat or places the article of constant weight as the people, described elastic insulating layer is compressed, and the both sides electrode slice is in contact with one another, and circuit is connected; After leaving seat, two electrode slices are separated from each other under the effect of the recovery elastic force of elastic layer, cut off the electricity supply.Though the gravity switch of described structure is simple in structure, but elastic insulating layer is aging easily, the poor flexibility in long back between in use, contact between the electrode slice is just not too reliable, take away article if forget when the people leaves, then the article ballast makes insulating barrier still be under the confined state, power supply is conducting still, can not play the effect that the people walks outage, and dependability is not high.
Therefore, the force induced switch of above-mentioned two patents all exists certain defective and deficiency, awaits to make more excellent improvement.
Summary of the invention
First technical problem to be solved by this invention is to provide a kind of dependable performance, compact conformation and force induced switch easy for installation at above-mentioned prior art present situation.
Second technical problem that the present invention will solve is to utilize described force induced switch and design a kind of accurate positioning, reliable automatic camera device.
The present invention solves the technical scheme that above-mentioned first technical problem adopts: this force induced switch includes
One is subjected to force transfering device, is used to transmit external force;
One contact-making switch has and can respond to first switch contact and the connector lug that external force changes; And
Described force transfering device and the contact-making switch of being subjected to fixed and encapsulated to one canning;
It is characterized in that: the described multidiameter that is subjected to force transfering device to include first spring, second spring and has the second switch contact, described canning comprise having the interior axle sleeve of takeing on and the beam barrel of an end connecting bushing, wherein,
Described multidiameter is located in axle sleeve and the beam barrel, and can be along the axis direction slippage of axle sleeve and beam barrel, multidiameter has first cascaded surface and second cascaded surface, described first spring housing is located between first cascaded surface and second cascaded surface, shoulder offsets in one end of described first spring and the described axle sleeve, and the other end and described first cascaded surface offset;
Described beam barrel internal fixation is provided with described contact-making switch, and contact-making switch has blocking surface, and described second spring, one end and described blocking surface offset, and the other end and described second cascaded surface offset;
Described multidiameter also is provided with the positive stop that offsets with described axle sleeve upper surface in the middle part of described first spring and described second spring, when being subjected under the external force state, described first spring and second spring are compressed, the competing trend of described first switch contact and second switch contact; When under no external force state, described positive stop offsets spacing with the upper surface of described axle sleeve under the reseting elasticity effect.
For the part that prevents inductive switch inside drops out from opening, described canning also is provided with last item at opening part, described last item has the inner chamber of the connector lug of the ccontaining described contact-making switch of energy, the upper surface of last item lower surface and described beam barrel offsets, to realize accurately locating and sealing the opening of pressure sensitivity inductive switch.
For making things convenient for the assembling of inductive switch, described last item also is threaded outward and the suitable gland of described last item profile, and gland is threaded with the other end of described beam barrel, when achieving a fixed connection with beam barrel last item is pushed and is fixed in the beam barrel end.
Described positive stop can be realized spacing barrier structure for various, can use as positive stop with a hex nut simply, and the lower surface of hex nut and the upper surface of described axle sleeve offset and realize spacing.
Described contact-making switch can be fixed in the beam barrel in various manners, as screw connect, bonding, clamping etc., preferably can in beam barrel, offer recessed counterbore, described contact-making switch is contained on the step surface of counterbore and can easily switch be fixed.
The present invention solves above-mentioned second technical scheme that technical problem adopted: this automatic positioning shooting device, include the location body, wireless data transmitter, wireless signal receiver, Single Chip Microcomputer (SCM) system, camera system, it is characterized in that also having the force induced switch described in above-mentioned technical scheme, the connector lug of described force induced switch is connected with electrified wire, described electrified wire is electrically connected mutually with wireless data transmitter, the current circuit of conducting wireless data transmitter when contact-making switch is closed, the output of wireless signal receiver connects the input of Single Chip Microcomputer (SCM) system, and the output of Single Chip Microcomputer (SCM) system connects the input of camera system.
Described force induced switch is fixedly connected on the body of described location, described location body specifically changes according to the difference of shooting occasion, generally mostly be each spokesman's seat, inductive switch can be installed on one of them chair pin of seat, functional reliability and accuracy in order to ensure inductive switch, need to give the suitable fixed reference face of inductive switch selection of accepting, preferably, can be with the multidiameter bottom of force induced switch and the fixed reference face of described location body, as the parallel contact in ground of seat chair pin contact.
Compared with prior art, the invention has the advantages that: at first, the location that the mode of employing cascaded surface and interior shoulder realizes spring and positive stop in whole inductive switch makes whole construction of switch compact more, and volume is littler; Secondly, be provided with two springs in the inductive switch, can select the good compression spring of elastic strength, remove and to test and to control the external force size more accurately as back-moving spring, also under unable state, have better reset effect, improved the reliability of external force induction; At last, by inductive switch of the present invention is applied to locate automatically in the filming apparatus, utilize wireless mode that stress on the seat and seat position signal are issued Single Chip Microcomputer (SCM) system, utilize force induced switch that human body is being seated or gravity difference during egress of chair differentiates whether the someone stands up on this chair, with further control shooting and pickup system automatic camera and pickup are carried out in this position, the location of manual pressing button mode is as compared with the past taken more reliable and accurate.
Description of drawings
Fig. 1 is the perspective view of the embodiment of the invention.
Fig. 2 is the front view of three-dimensional structure diagram shown in Figure 1.
Fig. 3 is the cutaway view (slightly amplifying) of Fig. 2.
Fig. 4 is the three-dimensional exploded view of inventive embodiments.
Fig. 5 is the gland cutaway view of the embodiment of the invention.
Fig. 6 is the last item cutaway view of the embodiment of the invention.
Fig. 7 is the beam barrel cutaway view of the embodiment of the invention.
Fig. 8 is the axle sleeve cutaway view of the embodiment of the invention.
Fig. 9 is for using the automatic positioning shooting device schematic diagram that force induced switch of the present invention is arranged.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Fig. 1～Fig. 8 is preferred embodiment of force induced switch of the present invention, and it includes by first spring 2, second spring 3 and has the force transfering device that is subjected to that the multidiameter 1 of second switch contact 15 forms, and is used to transmit external force; Have and to respond to first switch contact 41 that external force changes and the contact-making switch 4 of connector lug 43,44; And the canning that includes last item 5, gland 6, beam barrel 7 and axle sleeve 8, be used for fixing and encapsulate described force transfering device and the contact-making switch 4 of being subjected to.
Wherein, described multidiameter 1 is located in axle sleeve 8 and the beam barrel 7, and can be along the axis direction slippage of axle sleeve 8 and beam barrel 7, multidiameter 1 has first cascaded surface 11, second cascaded surface 12, the 3rd cascaded surface 13 and quadravalence tread 14, described quadravalence tread 14 is as multidiameter 1 bottom, play with the plane of reference and contact and the supporting surface effect, described first spring 2 then is set between first cascaded surface 11 and second cascaded surface 12, one end of described first spring 2 and the interior shoulder 81 of axle sleeve 8 offset, and the other end and described first cascaded surface 11 offset; Described multidiameter 1 position between described first spring 2 and described second spring 3 also is threaded a hex nut 9 offseting with described axle sleeve 8 upper surfaces 82 as positive stop, during assembling, hex nut 9 is tightened onto on the multidiameter 1 till running into described the 3rd cascaded surface 13, promptly reaches the limit helical position of hex nut 9.
When being subjected under the external force state, described first spring 2 and second spring 3 are compressed, hex nut 9 leaves axle sleeve 8 upper surfaces 82, and multidiameter 1 is along moving described first switch contact 41 and second switch contact 15 competing trend on the axis direction of axle sleeve 8 and beam barrel 7; When under no external force state, multidiameter 1 moves down along the axis direction of axle sleeve 8 and beam barrel 7, described first switch contact 41 separates with second switch contact 15, and described hex nut 9 offsets again with the upper surface 82 of described axle sleeve 8 under the reseting elasticity effect and realizes spacing.
Described axle sleeve 8 has circumferential boss face 83 on outline, during assembling, beam barrel 7 one ends are threaded the back in boss face 83 screens with described axle sleeve 8, reach the limit helical position of beam barrel 7; Beam barrel 7 tops have a recessed counterbore 71, described contact-making switch 4 is contained on the step surface 711 of counterbore 71 and is fixed in the beam barrel 7, contact-making switch 4 cross sections are the T type, has blocking surface 42, described second spring, 3 one ends and described blocking surface 42 offset, and the other end and described second cascaded surface 12 offset; Beam barrel 7 has also compressed described last item 5 in open upper end, the connector lug 43,44 of described contact-making switch 4 is contained in last item 5 inner chambers 51, the upper surface of last item 5 lower surfaces and described beam barrel 7 offsets, last item 5 outer also being with and the suitable gland 6 of described last item 5 profiles, the outline step surface 52,53 of last item 5 offsets with the interior shoulder 61,62 of gland 6 respectively, and described gland 6 is threaded with the other end of described beam barrel 7 and last item 5 is fixed on beam barrel 7 upper end open places.
In automatic positioning shooting system, video camera is in order to realize the shooting of location automatically, often need to respond to exactly the signal of reference object, send when being taken signal at reference object, what the signal of camera by the transmission of induced signal receiver realized camera turns to the location automatically, and takes in real time.
At present, in the automatic shooting technology of record class classroom, telecommunication network classroom, video conference rooms, if need locate shooting automatically to the people who takes the floor at random, generally manually press the button control signal is provided by the spokesman, but there are some defectives in this pattern, the speech that ought at every turn stand exactly all needs in time to press the button, otherwise camera does not receive the omission that reference object will take place signal.Thus, on the one hand influential to spokesman's attentiveness, the also length of wayward shooting time on the other hand.
So, as shown in Figure 9, for the force induced switch with present embodiment is arranged on a practical application in the automatic positioning shooting device.This automatic positioning shooting device includes seat A, wireless data transmitter B, wireless signal receiver C, Single Chip Microcomputer (SCM) system D, camera system E and force induced switch F, described force induced switch F is by the chair underfooting portion that is installed to seat A shown in Figure 9, with ground I is reference planes, with the bottom and the parallel contact of ground I of described multidiameter 1.Described contact-making switch 4 is extended with the electrified wire 45,46 of two connector lugs 43,44 that connect contact-making switch 4 respectively from the axis hole 54 of described last item 5, and electrified wire 45,46 is electrically connected with wireless data transmitter B respectively and forms current circuit.
During use, after human body is sat down, because the action of gravity of human body is on chair, the multidiameter and the described axle sleeve of while force induced switch, beam barrel generation relative displacement, first switch contact and second switch contact are in contact with one another, described contact-making switch closure, circuit turn-on, force induced switch is launched the address information coding back of stress information and this chair by wireless data transmitter, simultaneously, after wireless signal receiver receives this information, data are sent into Single Chip Microcomputer (SCM) system, determine by condition of presetting and parameter whether human body stands up on this chair,, the people who stands up is positioned shooting if having the people to stand up then to export control information to give other system such as automatic positioning shooting system.
Described force induced switch also is not limited to the application in the automatic camera system, can also be installed on the seat of vehicle, when the people leaves vehicle, can realize the closing of electrical equipment in the car in time cut off power supply in the car.
Claims (7)
1. a force induced switch includes
One is subjected to force transfering device, is used to transmit external force;
One contact-making switch (4) has and can respond to first switch contact (41) and the connector lug (43,44) that external force changes; And
Described force transfering device and the contact-making switch (4) of being subjected to fixed and encapsulated to one canning;
It is characterized in that: the described multidiameter (1) that is subjected to force transfering device to include first spring (2), second spring (3) and has second switch contact (15), described canning comprises the axle sleeve (8) with interior shoulder (81) and the beam barrel (7) of an end connecting bushing (8), wherein
Described multidiameter (1) is located in axle sleeve (8) and the beam barrel (7), and can be along the axis direction slippage of axle sleeve (8) and beam barrel (7), multidiameter (1) has first cascaded surface (11) and second cascaded surface (12), described first spring (2) is set between first cascaded surface (11) and second cascaded surface (12), shoulder (81) offsets in one end of described first spring (2) and the described axle sleeve, and the other end and described first cascaded surface (11) offset;
Described beam barrel (7) internal fixation is provided with described contact-making switch (4), and contact-making switch (4) has blocking surface (42), and described second spring (3) one ends and described blocking surface (42) offset, and the other end and described second cascaded surface (12) offset;
Described multidiameter (1) also is provided with the positive stop that offsets with described axle sleeve (8) upper surface in the middle part of described first spring (2) and described second spring (3), when being subjected under the external force state, described first spring (2) and second spring (3) are compressed, the competing trend of described first switch contact (41) and second switch contact (15); When under no external force state, described positive stop offsets spacing with the upper surface (82) of described axle sleeve (8) under the reseting elasticity effect.
2. force induced switch according to claim 1, it is characterized in that described canning also is provided with last item (5) at opening part, described last item (5) has the inner chamber (51) of the connector lug (43,44) of the ccontaining described contact-making switch of energy (4), and the upper surface of last item (5) lower surface and described beam barrel (7) offsets.
3. force induced switch according to claim 2 it is characterized in that also being arranged with and the suitable gland (6) of described last item (5) profile outside the described last item (5), and gland (6) is threaded with the other end of described beam barrel (7).
4. force induced switch according to claim 1 is characterized in that described positive stop is a hex nut (9), and the upper surface of the lower surface of hex nut (9) and described axle sleeve (8) offsets and realizes spacing.
5. force induced switch according to claim 1 is characterized in that described beam barrel (7) has recessed counterbore (71), and described contact-making switch (4) is contained in the step surface (711) of counterbore (71) and goes up fixing.
6. automatic positioning shooting device, include the location body, wireless data transmitter (B), wireless signal receiver (C), Single Chip Microcomputer (SCM) system (D), camera system (E), it is characterized in that also having as the described force induced switch of each claim (F) in the claim 1～5, the connector lug (43 of described force induced switch (F), 44) be connected with electrified wire (45,46), described electrified wire (45,46) be electrically connected mutually with wireless data transmitter (B), the current circuit of conducting wireless data transmitter (B) when contact-making switch (4) is closed, the output (C1) of wireless signal receiver (C) connects the input (D1) of Single Chip Microcomputer (SCM) system (D), and the output (D2) of Single Chip Microcomputer (SCM) system (D) connects the input (E1) of camera system (E).
7. automatic positioning shooting device according to claim 6, it is characterized in that described force induced switch (F) is fixedly connected on the body of described location, multidiameter (1) bottom of force induced switch (F) and parallel contact of fixed reference face of described location body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100709963A CN101154534B (en) | 2007-08-23 | 2007-08-23 | Automatic positioning imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100709963A CN101154534B (en) | 2007-08-23 | 2007-08-23 | Automatic positioning imaging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101154534A true CN101154534A (en) | 2008-04-02 |
| CN101154534B CN101154534B (en) | 2010-10-06 |
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ID=39256100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100709963A Expired - Fee Related CN101154534B (en) | 2007-08-23 | 2007-08-23 | Automatic positioning imaging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101154534B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256055A (en) * | 2011-04-26 | 2011-11-23 | 杭州华银视讯科技有限公司 | Shooting system and shooting method |
| CN102325239A (en) * | 2011-04-26 | 2012-01-18 | 杭州华银视讯科技有限公司 | A kind of camera system and image pickup method |
| CN102568872A (en) * | 2012-02-20 | 2012-07-11 | 宜兴市美迪水景工程有限公司 | Waterproof pedal inductive switch |
| CN104827062A (en) * | 2015-05-20 | 2015-08-12 | 江苏信合众泰精密机械有限公司 | Device for preventing lathe chuck spanner from being thrown out |
| CN104840185A (en) * | 2015-04-27 | 2015-08-19 | 苏州美一点智能科技有限公司 | Skin tester |
| CN111578484A (en) * | 2020-05-20 | 2020-08-25 | 张克清 | Realize cryogenic energy-conserving elevator then based on weight change |
| CN111590435A (en) * | 2020-05-27 | 2020-08-28 | 杭州迹瑞工贸有限公司 | Realize polishing sweeps collection device to hardware based on gravity changes |
| CN111745906A (en) * | 2020-05-26 | 2020-10-09 | 俞小霞 | Injection molding machine nozzle capable of achieving cleanness based on gravity change |
| CN112262451A (en) * | 2018-07-10 | 2021-01-22 | 欧姆龙株式会社 | Input device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201023Y (en) * | 1994-07-05 | 1995-06-21 | 朱明祖 | Safety electrothermal kettle with gravity-controlled power source |
| CN2647618Y (en) * | 2003-06-05 | 2004-10-13 | 阎学贤 | Intelligent tyre pressure alarmer |
| CN1909138A (en) * | 2005-08-02 | 2007-02-07 | 宁波市塞纳电热电器有限公司 | Pressure switch |
| CN2909487Y (en) * | 2006-04-30 | 2007-06-06 | 韩玉林 | Switch controlled by gravity |
-
2007
- 2007-08-23 CN CN2007100709963A patent/CN101154534B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256055A (en) * | 2011-04-26 | 2011-11-23 | 杭州华银视讯科技有限公司 | Shooting system and shooting method |
| CN102325239A (en) * | 2011-04-26 | 2012-01-18 | 杭州华银视讯科技有限公司 | A kind of camera system and image pickup method |
| CN102568872A (en) * | 2012-02-20 | 2012-07-11 | 宜兴市美迪水景工程有限公司 | Waterproof pedal inductive switch |
| CN102568872B (en) * | 2012-02-20 | 2014-04-23 | 宜兴市美迪水景工程有限公司 | Waterproof pedal inductive switch |
| CN104840185B (en) * | 2015-04-27 | 2019-12-20 | 科沃斯机器人股份有限公司 | Skin tester |
| CN104840185A (en) * | 2015-04-27 | 2015-08-19 | 苏州美一点智能科技有限公司 | Skin tester |
| CN104827062A (en) * | 2015-05-20 | 2015-08-12 | 江苏信合众泰精密机械有限公司 | Device for preventing lathe chuck spanner from being thrown out |
| CN112262451A (en) * | 2018-07-10 | 2021-01-22 | 欧姆龙株式会社 | Input device |
| CN112262451B (en) * | 2018-07-10 | 2024-04-23 | 欧姆龙株式会社 | Input device |
| CN111578484A (en) * | 2020-05-20 | 2020-08-25 | 张克清 | Realize cryogenic energy-conserving elevator then based on weight change |
| CN111745906A (en) * | 2020-05-26 | 2020-10-09 | 俞小霞 | Injection molding machine nozzle capable of achieving cleanness based on gravity change |
| CN111745906B (en) * | 2020-05-26 | 2022-11-08 | 宁波亿龙汽车部件有限公司 | Injection molding machine nozzle capable of realizing cleanness based on gravity change |
| CN111590435A (en) * | 2020-05-27 | 2020-08-28 | 杭州迹瑞工贸有限公司 | Realize polishing sweeps collection device to hardware based on gravity changes |
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| Publication number | Publication date |
|---|---|
| CN101154534B (en) | 2010-10-06 |
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Granted publication date: 20101006 Termination date: 20120823 |