CN100451387C - Throttle valve reversing closing apparatus - Google Patents
Throttle valve reversing closing apparatus Download PDFInfo
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- CN100451387C CN100451387C CNB2006100328539A CN200610032853A CN100451387C CN 100451387 C CN100451387 C CN 100451387C CN B2006100328539 A CNB2006100328539 A CN B2006100328539A CN 200610032853 A CN200610032853 A CN 200610032853A CN 100451387 C CN100451387 C CN 100451387C
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- gate
- rotating shaft
- gear
- throttle valve
- closing apparatus
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Abstract
The invention is a throttle valve fastening device, comprising overload protection mechanism and fastening mechanism cooperating with electric motor, where the overload protection mechanism comprises rotating shaft as well as a gear, a pressure spring and two friction plates jacketed on the rotating shaft, the gear engages with that of the electric motor, the friction plates are placed in between the pressure spring and the gear, so as to rotate the rotating shaft by the friction produced between the friction plates and the gear. And its gate is arc, uneasy to bend and able to effectively enhance gate intensity; the motor can be protected when overloaded; it drives the gate to open and close by cam, and makes the gate naturally fall and closed through torsion of torsion spring, so uneasy to clip damage hands, and additionally, the cam will continue turning after the gate closed, so as to be able to fasten the gate, playing the role of anti-prizing.
Description
Technical field
The present invention relates to a kind of gate, refer to a kind of throttle valve reversing closing apparatus especially.
Background technique
Gate in the past is to use the mode that swings up and down to come the switch gate mostly, the intensity of gate a little less than, and do not have overload protection, when closing gate, crush hand easily, and motor can not get protection when overload, damage motor easily.
Summary of the invention
Based on the deficiencies in the prior art, main purpose of the present invention is to provide with cam drive and with the gates of segmental shape of overload protection, not only can improve gate intensity, but also have overload protection, is difficult for crushing hand during closing gate.
The invention provides a kind of throttle valve reversing closing apparatus; it comprises overload protecting mechanism and left-hand thread mechanism; described overload protecting mechanism comprises rotating shaft and is sheathed on gear in this rotating shaft; a stage clip; two friction plates and screens mechanism; this gear is meshed with the gear of motor; friction plate is sandwiched between stage clip and the gear; driving rotating shaft by the frictional force that produces between friction plate and the gear rotates; described stage clip is limited between screens mechanism and the friction plate; described left-hand thread mechanism comprises door pivot; torsion spring and cam; described torsion spring and gate are placed on the described door pivot; and described torsion spring is compressed between frame and the gate, and described cam is sheathed in the rotating shaft of overload protecting mechanism.
In one embodiment of the invention, described overload protecting mechanism further comprises two spring banking stops that are sheathed in the rotating shaft, and divides both sides to clamp friction plate.Have two breach in the described rotating shaft, this screens mechanism locatees by breach.
Described gate is curved, and its interior angle is formed with a straight line latch hook.
Cam comprises two tinsels and two rollers not of uniform size, i.e. trundle and big roller, and trundle and big roller are symmetrical arranged along the axis of tinsel, and wherein, big roller is rotatable, and it is used for driving gate and opens; Trundle is fixing can not to rotate, and is buckled in when the closing gate state on the straight line latch hook of gate and plays the effect of locking
Compared with prior art, in the present invention, gate is an arc, and is not flexible, and can strengthen the intensity of gate effectively; Motor can be protected when overload; Use the cam drive knife switch, gate is that torsion by torsion spring falls gate to close, so be difficult for crushing hand, add overhead cam and continues to overturn behind closing gate, make cam live gate by left-hand thread, play the effect of pick-proof naturally when closing gate.
For making the present invention easier to understand, further set forth the specific embodiment of throttle valve reversing closing apparatus of the present invention below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the overall schematic of throttle valve reversing closing apparatus of the present invention;
Fig. 2 is the schematic representation of the overload protecting mechanism of throttle valve reversing closing apparatus of the present invention;
Fig. 3 is the schematic representation of throttle valve reversing closing apparatus of the present invention cam drive knife switch when the gate open mode;
Fig. 4 is the schematic representation of throttle valve reversing closing apparatus of the present invention cam drive knife switch when the closing gate state;
Fig. 5 is the schematic representation of the gate of throttle valve reversing closing apparatus of the present invention.
Embodiment
Throttle valve reversing closing apparatus of the present invention is used to avoid gate when opening and closing, fast operation the injury that operator are caused and the infringement of motor.
Shown in seeing figures.1.and.2, this throttle valve reversing closing apparatus comprises overload protecting mechanism 1 and left-hand thread mechanism 2, wherein, the damage that excessive operation when overload protecting mechanism 1 is used to limit opening and closing causes motor, it comprises rotating shaft 10 and sheathed thereon gear 11, stage clip 12 and two friction plates 13, gear 11 is sheathed in the rotating shaft 10, and and rotating shaft 10 between have certain space, gear 11 is meshed with the gear of motor end, it can freely be rotated in rotating shaft 10, but do not rotate with rotating shaft 10; Friction plate 13 is sheathed in the rotating shaft 10 tightly, and is subjected to the spring pressure effect of stage clip 12 and presses gear 11, makes gear 11 around the shaft 10 when rotating, and the radial frictional force that produces between the friction plate 13 can drive rotating shaft 10 and rotates synchronously.
Wherein, rotating shaft 10 also further comprises the screens mechanism 101 that is sheathed in the rotating shaft 10, in the present embodiment, has two breach (not icon) in the rotating shaft 10, and this screens mechanism 101 is a circumferential clasp, and it is located by split washer.Stage clip 12 places between friction plate 13 and the screens mechanism 101, and presses friction plate 13.
In one embodiment of the invention; described overload protecting mechanism 1 further comprises two spring banking stops 14 that are sheathed in the rotating shaft 10; at this moment; described stage clip 12 is limited between screens mechanism 101 and the spring banking stop 14; exert pressure by compressing 12 pairs of spring banking stops 14 of stage clip; making is enough to the bigger frictional force of generation between gear 11 and the friction plate 13 drive rotating shaft 10 and rotates, and makes the gate action.
With reference to Fig. 3 and shown in Figure 4, left-hand thread mechanism 2 comprises door pivot 20, torsion spring 21 and cam 22, wherein, torsion spring 21 and gate 3 are placed on the door pivot 20, and torsion spring 21 places between frame and the gate, and the one free end is fixed on the frame, and another free end is hung on the gate 3, make gate 3 be subjected to the effect of spring torsion, can maintain a relatively stable state constantly.With reference to shown in Figure 5, gate 3 curved designs, its interior angle is formed with a straight line latch hook 30.Cam 22 is sheathed on the two ends of rotating shaft 10, and cam 22 comprises two tinsels 220 and two rollers not of uniform size, i.e. trundle 221 and big roller 222, trundle 221 and big roller 222 are symmetrical arranged along the axis of tinsel 220, wherein, big roller 222 is rotatable, and it is used for driving gate and opens; Trundle 221 fixing can not rotations are played the effect of locking when the closing gate state.
Below sketch the working principle of closing gate: when gate was in open mode, the big roller 222 of cam 22 was tangential on the outer side wall of gate, and 221 of trundles and big roller 222 are symmetrical arranged.In the time of need be with closing gate, the big roller 222 of this left-hand thread mechanism 2 reverses in cam 22, and after the anti-turnback, at this moment, trundle 221 just is buckled on the latch hook 30 of gate 3, thereby with gate 3 left-hand threads, makes gate 3 can play the effect of locking down in off position.And gate 3 is that torsion by torsion spring 21 falls gate to close, therefore be difficult for crushing hand naturally when closing.
When gate was opening and closing when position; or in motion way, hindered foreign object and stopped; sensor is during less than the state of gate; motor then remains in operation; at this moment the torsion that motor produced is greater than the frictional force of friction plate; gear will produce and skid, and can protect motor effectively like this, makes the life-span of motor can obtain prolonging.
Above disclosedly only be the preferred embodiment of throttle valve reversing closing apparatus of the present invention, can not limit the present invention's interest field certainly with this, therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (5)
1. throttle valve reversing closing apparatus, it comprises overload protecting mechanism and left-hand thread mechanism, it is characterized in that: described overload protecting mechanism comprises rotating shaft and is sheathed on gear in this rotating shaft, stage clip, two friction plates and screens mechanism, this gear is meshed with the gear of motor, friction plate is sandwiched between stage clip and the gear, drive rotating shaft by the frictional force that produces between friction plate and the gear and rotate, described stage clip is limited between screens mechanism and the friction plate; Described left-hand thread mechanism comprises door pivot, torsion spring and cam, and described torsion spring and gate are placed on the described door pivot, and described torsion spring is compressed between frame and the gate, and described cam is sheathed in the rotating shaft of overload protecting mechanism.
2. throttle valve reversing closing apparatus as claimed in claim 1 is characterized in that: described overload protecting mechanism further comprises two spring banking stops that are sheathed in the rotating shaft, and divides both sides to clamp friction plate.
3. throttle valve reversing closing apparatus as claimed in claim 2 is characterized in that: have two breach in the described rotating shaft, this screens mechanism locatees by breach.
4. throttle valve reversing closing apparatus as claimed in claim 1 is characterized in that: described gate is curved, and its interior angle is formed with a straight line latch hook.
5. throttle valve reversing closing apparatus as claimed in claim 4, it is characterized in that: cam comprises two tinsels and two rollers not of uniform size, be trundle and big roller, trundle and big roller are symmetrical arranged along the axis of tinsel, described trundle is fixed, described big roller is rotatable, and trundle is buckled on the latch hook of gate during closing gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100328539A CN100451387C (en) | 2006-01-11 | 2006-01-11 | Throttle valve reversing closing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100328539A CN100451387C (en) | 2006-01-11 | 2006-01-11 | Throttle valve reversing closing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101000086A CN101000086A (en) | 2007-07-18 |
| CN100451387C true CN100451387C (en) | 2009-01-14 |
Family
ID=38692171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100328539A Active CN100451387C (en) | 2006-01-11 | 2006-01-11 | Throttle valve reversing closing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100451387C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113467074B (en) * | 2021-06-30 | 2023-04-04 | 江西晶浩光学有限公司 | Light polarization angle adjusting device, camera module and electronic equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1482541A (en) * | 1973-09-18 | 1977-08-10 | Baula G | Apparatus for protection against theft and attack |
| US4440043A (en) * | 1982-03-03 | 1984-04-03 | Excelermatic Inc. | Fixed ratio traction roller transmission with tapered loading means |
| JPH0562048A (en) * | 1991-09-03 | 1993-03-12 | Hitachi Ltd | Automatic transaction device |
| CN2315242Y (en) * | 1996-05-20 | 1999-04-21 | 徐晓光 | Multifunctional three-way anti-theft door lock controlled by rotary wheel and cam |
| CN2527645Y (en) * | 2002-01-22 | 2002-12-25 | 高中合 | Column-type automatic lock |
| CN1122748C (en) * | 1999-01-29 | 2003-10-01 | 任亨 | Safe with electromechanical push-button mechanical puzzle lock |
| EP1464870A1 (en) * | 2003-04-02 | 2004-10-06 | DAYCO EUROPE S.r.l. | Drive assembly for driving a rotary member, in particular a combustion engine water pump shaft |
| CN2656569Y (en) * | 2003-11-04 | 2004-11-17 | 姜志钧 | Door opener for electronic safe deposit box |
-
2006
- 2006-01-11 CN CNB2006100328539A patent/CN100451387C/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1482541A (en) * | 1973-09-18 | 1977-08-10 | Baula G | Apparatus for protection against theft and attack |
| US4440043A (en) * | 1982-03-03 | 1984-04-03 | Excelermatic Inc. | Fixed ratio traction roller transmission with tapered loading means |
| JPH0562048A (en) * | 1991-09-03 | 1993-03-12 | Hitachi Ltd | Automatic transaction device |
| CN2315242Y (en) * | 1996-05-20 | 1999-04-21 | 徐晓光 | Multifunctional three-way anti-theft door lock controlled by rotary wheel and cam |
| CN1122748C (en) * | 1999-01-29 | 2003-10-01 | 任亨 | Safe with electromechanical push-button mechanical puzzle lock |
| CN2527645Y (en) * | 2002-01-22 | 2002-12-25 | 高中合 | Column-type automatic lock |
| EP1464870A1 (en) * | 2003-04-02 | 2004-10-06 | DAYCO EUROPE S.r.l. | Drive assembly for driving a rotary member, in particular a combustion engine water pump shaft |
| CN2656569Y (en) * | 2003-11-04 | 2004-11-17 | 姜志钧 | Door opener for electronic safe deposit box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101000086A (en) | 2007-07-18 |
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