CN101781968B - Safe brake for rolling door - Google Patents
Safe brake for rolling door Download PDFInfo
- Publication number
- CN101781968B CN101781968B CN201010103483XA CN201010103483A CN101781968B CN 101781968 B CN101781968 B CN 101781968B CN 201010103483X A CN201010103483X A CN 201010103483XA CN 201010103483 A CN201010103483 A CN 201010103483A CN 101781968 B CN101781968 B CN 101781968B
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- CN
- China
- Prior art keywords
- ratchet
- rolling door
- end cap
- wheel disc
- safe brake
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention provides a safe brake for a rolling door. The safe brake comprises an end cover, a wheel disc, and a ratchet wheel and a pawl which are matched with each other, wherein the periphery of the ratchet wheel is fixedly connected with the periphery of the end cover; the end cover is fixed at the tail end of a rolling drum rotary shaft of the rolling door through a bearing; the wheel disc is fixed in a round groove of the end cover; and the pawl is arranged in the middle of the ratchet wheel, is matched with the ratchet wheel and is fixed on the wheel disc. The safe brake is arranged at either end or two ends of the rolling drum rotary shaft of the rolling door. The number and installing positions of the safe brake can be adjusted according to the actual requirements of a rolling door structure. The safe brake for the rolling door has the advantages of simple structure, simple action principle, reliable brake effect, capability of effectively avoid accidents, convenient use, and capability of being applied to rolling door mechanisms with different sizes in different occasions; and the size and number of the safe brake can be selected and the installation position of the safe brake can be set according to the actual size and actual requirements of the rolling door.
Description
Technical field
The present invention relates to the safety arrestment technology of a mechanism, particularly a kind of safe brake for rolling door that can be applicable to industrial door, garage door etc.
Background technology
For conveniently opening and closing, save the space, Industrial Door or garage wait a comparatively large-scale door body generally to adopt the rolling door structure with door, however traditional rolling door regular meeting is because the sprocket wheel of a machine or gear failure cause rolling door directly to fall perhaps can not normally use.To this problem; Also there is on rolling door door machine the safety catch of installation too fast at present to prevent that rolling door from falling; But these safety catches generally adopt the freely falling body centrifugal mechanism; Because the structure of freely falling body centrifugal mechanism is comparatively complicated, the accuracy of manufacture is had relatively high expectations, so its manufacturing cost is also very high, accounts for 50% of a machine cost; In addition; Because being used for rolling door volume size, the model of different occasions has nothing in common with each other; So the door machine model on the rolling door is also inevitable different; This must carry out special design according to the model of door machine with regard to requiring safety catch, and its scope of application also just is restricted, and makes the manufacturing cost of enterprise and inventory cost high.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned prior art, a kind of safe brake for rolling door of simple in structure, good braking effect is provided.
The present invention realizes through following technical scheme: a kind of safe brake for rolling door; Comprise end cap, wheel disc, the ratchet and pawl that matches; Said ratchet periphery is fixedly connected with the end cap periphery, and end cap is terminal in the reel rotating shaft of rolling door through bearing fixing, and wheel disc is fixed in the circular groove of end cap; Ratchet is located at the ratchet center and is matched with ratchet, and ratchet is fixed on the wheel disc; Deadman's brake is located at the reel rotating shaft of rolling door and is appointed one or both ends, also can the number and the installation site of deadman's brake be adjusted according to the actual needs of rolling door structure.
Said ratchet one end is fixed on the wheel disc through rotary pin shaft, and the ratchet other end is connected with fixed pin shaft on the wheel disc through spring.
Week is a dentalation in the said ratchet, and the end that said ratchet is connected with fixed pin shaft is the double wedge block structure, and the double wedge block structure of ratchet matches with the dentalation in week in the ratchet.
The inside and outside both sides of said ratchet are respectively circular-arc, and its inboard circular arc matches with the excircle of reel rotating shaft.
Reliable for the braking that guarantees deadman's brake better, the number of said ratchet is at least two, also can be provided with according to actual needs.
Said end cap is multistage step-like structure, and the end cap center is provided with the circular groove of multistage different-diameter, matches with bearing near the circular groove of end cap end face, in the circular groove near the end cap bottom surface wheel disc is set, and the end cap bottom surface is fixedly connected with ratchet.
When safe brake for rolling door of the present invention was applied to rolling door, its operating principle was: during the rolling door operate as normal, and the generally about 10rpm of the rotating speed of its reel rotating shaft, at this moment the centrifugal force of ratchet is less than the pulling force of spring, and ratchet can not throw away, and rolling door can free lifting; When rolling door was called sprocket wheel or the gear breaking of machine, rolling door was because the effect meeting of gravity freely falls, and the rotating speed of rolling door coiling rotating shaft this moment can quicken to rise; Because square being directly proportional of centrifugal force and rotating speed, when the speed that falls when rolling door arrived to a certain degree greatly, the centrifugal force of ratchet will be greater than the pulling force of spring; Ratchet is thrown away; The double wedge block structure that throws away the back ratchet cooperates chucking with the dentalation in interior week of ratchet, prevents the reel rotating shaft to rotate the whereabouts of preventing rolling door effectively rapidly; Reach safety arrestment, the accident that prevents takes place.
The present invention has following advantageous effect with respect to prior art:
1, this safe brake for rolling door is simple in structure; Through the pawl-and-gearing match is set, when the door machine cisco unity malfunction of rolling door, make the pawl-and-gearing chucking through centrifugal action on the spool spindle of rolling door; Free falling to rolling door is braked; Its action principle is simple, and braking effect is reliable, and the accident that can effectively prevent takes place.
When 2, deadman's brake of the present invention is applied to rolling door; Can select size, the number of deadman's brake or its installation site is set according to the actual size or the actual needs of rolling door; During installation; As long as with the reel rotating shaft matching and fixing of bearing and rolling door, thus easy to use, also can be applicable to the rolling door mechanism of multiple occasion, multiple size.
3, big or small according to the rolling door mechanism of practical application; Respectively form member in the deadman's brake of the present invention and all can carry out standardized production; It is installed during use again and get final product, this can enhance productivity greatly, increases the range of application of deadman's brake in rolling door mechanism.
4, in the deadman's brake of the present invention,,, can adopt casting method directly to obtain, not need machining, accelerate manufacturing speed greatly, reduce production costs so its required precision is relatively low because ratchet just cooperates when braking with ratchet.
5, the ratchet of this rolling door deadman's brake also can adopt the pack alloy method directly to make, and saving process time that can be a large amount of is to realize industrialization.
Description of drawings
Fig. 1 is the structural representation of this safe brake for rolling door.
Fig. 2 is the longitudinal sectional view of this safe brake for rolling door.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done further detailed description, but embodiment of the present invention is not limited thereto.
Embodiment
A kind of safe brake for rolling door of present embodiment; Its structure such as Fig. 1 or shown in Figure 2 comprise end cap 1, wheel disc 7, the ratchet 2 that matches and ratchet 3, and ratchet 2 peripheries and end cap 1 periphery are fixedly connected; End cap 1 is fixed in reel rotating shaft 6 ends of rolling door through bearing 5; Wheel disc 7 is fixed in the circular groove of end cap 1, and ratchet 3 is located at ratchet 2 centers and is matched with ratchet 2, and ratchet 3 is fixed on ratchet 3 fixed disks; Deadman's brake is located at 6 one or both ends of reel rotating shaft of rolling door, also can the number and the installation site of deadman's brake be adjusted according to the actual needs of rolling door structure.
In the said structure, ratchet 3 one ends are fixed on the wheel disc 7 through rotary pin shaft 4, and ratchet 3 other ends are connected with fixed pin shaft 9 on the wheel disc 7 through spring 8.
As shown in Figure 1, week is a dentalation in the ratchet 2, and the end that ratchet 3 is connected with fixed pin shaft 9 is the double wedge block structure, and the double wedge block structure of ratchet 3 matches with the dentalation in week in the ratchet 2.
The inside and outside both sides of ratchet 3 are respectively circular-arc, and its inboard circular arc matches with the excircle of reel rotating shaft 6.
Reliable for the braking that guarantees deadman's brake better, the number of ratchet 3 is at least two, also can be provided with according to actual needs.
As shown in Figure 2; End cap 1 is multistage step-like structure, and end cap 1 center is provided with the circular groove of multistage different-diameter, matches with bearing 5 near the circular groove of end cap 1 end face; Wheel disc 7 is set in the circular groove near end cap 1 bottom surface, and end cap 1 bottom surface is fixedly connected with ratchet 2.
When the safe brake for rolling door of present embodiment is applied to rolling door; Its operating principle is: during the rolling door operate as normal, and the generally about 10rpm of the rotating speed of its reel rotating shaft 6, at this moment the centrifugal force of ratchet 3 is less than the pulling force of spring 8; Ratchet 3 can not throw away, and rolling door can free lifting; When rolling door was called sprocket wheel or the gear breaking of machine, rolling door was because the effect meeting of gravity freely falls, and the rotating speed of rolling door coiling rotating shaft this moment 6 can quicken to rise; Because square being directly proportional of centrifugal force and rotating speed, when the speed that falls when rolling door arrived to a certain degree greatly, the centrifugal force of ratchet 3 will be greater than the pulling force of spring 8; Ratchet 3 is thrown away; The double wedge block structure that throws away back ratchet 3 cooperates chucking with the dentalation in 2 interior weeks of ratchet, prevents reel rotating shaft 6 to rotate the whereabouts of preventing rolling door effectively rapidly; Reach safety arrestment, the accident that prevents takes place.
As stated, can realize preferably that just the present invention, the foregoing description are merely preferred embodiment of the present invention, be not to be used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (3)
1. safe brake for rolling door; It is characterized in that comprise end cap, wheel disc, the ratchet and pawl that matches, said ratchet periphery and end cap periphery are fixedly connected; End cap is terminal in the reel rotating shaft of rolling door through bearing fixing; Wheel disc is fixed in the circular groove of end cap, and ratchet is located at the ratchet center and is matched with ratchet, and ratchet is fixed on the wheel disc; Deadman's brake is located at the reel rotating shaft of rolling door and is appointed one or both ends;
Said ratchet one end is fixed on the wheel disc through rotary pin shaft, and the ratchet other end is connected with fixed pin shaft on the wheel disc through spring;
Week is a dentalation in the said ratchet, and the end that said ratchet is connected with fixed pin shaft is the double wedge block structure, and the double wedge block structure of ratchet matches with the dentalation in week in the ratchet;
Said end cap is multistage step-like structure, and the end cap center is provided with the circular groove of multistage different-diameter, matches with bearing near the circular groove of end cap end face, in the circular groove near the end cap bottom surface wheel disc is set, and the end cap bottom surface is fixedly connected with ratchet.
2. safe brake for rolling door according to claim 1 is characterized in that, the inside and outside both sides of said ratchet are respectively circular-arc, and its inboard circular arc matches with the excircle of reel rotating shaft.
3. safe brake for rolling door according to claim 1 is characterized in that the number of said ratchet is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103483XA CN101781968B (en) | 2010-01-27 | 2010-01-27 | Safe brake for rolling door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103483XA CN101781968B (en) | 2010-01-27 | 2010-01-27 | Safe brake for rolling door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101781968A CN101781968A (en) | 2010-07-21 |
| CN101781968B true CN101781968B (en) | 2012-04-18 |
Family
ID=42522112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010103483XA Expired - Fee Related CN101781968B (en) | 2010-01-27 | 2010-01-27 | Safe brake for rolling door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101781968B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967974B (en) * | 2014-05-13 | 2016-05-04 | 上海电机学院 | A kind of ratchet device |
| CN104110208A (en) * | 2014-06-18 | 2014-10-22 | 福建安麟智能科技股份有限公司 | Anti-falling safety device of electric control roller shutter door |
| CN108468732A (en) * | 2018-06-11 | 2018-08-31 | 漳州市龙文区上野技术开发服务部 | A kind of anti-fall brake disc of door roller and brake base |
| CN112761453B (en) * | 2019-09-12 | 2022-07-15 | 广州市百利文仪实业有限公司 | Sliding door safety protection device based on centrifugal rotation principle and use method thereof |
| CN110802253B (en) * | 2019-11-19 | 2020-08-21 | 玉茗建设集团有限责任公司 | Forming and processing device and processing method for embedded part of assembled building sleeve |
| CN112755452B (en) * | 2021-03-16 | 2022-01-04 | 新沂市五联电气科技有限公司 | Automatic dead barbell protection device of card |
| CN113818838A (en) * | 2021-09-04 | 2021-12-21 | 青岛新胜石油机械有限公司 | Ultra-long stroke oil pumping ground equipment and dual-machine oil pumping unit applying same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU619726A2 (en) * | 1976-11-18 | 1978-08-15 | Государственное Специальное Конструкторское Бюро По Ирригации | Ratchet detent |
| CN2053201U (en) * | 1989-09-13 | 1990-02-21 | 鹤岗矿务局机电总厂多种经营公司 | Centrifugally blocked safety rope sheave |
| CN2401684Y (en) * | 1999-11-26 | 2000-10-18 | 方大集团股份有限公司 | Side propelled rolling door |
| CN201032595Y (en) * | 2007-03-21 | 2008-03-05 | 胡敬礼 | Minisize centrifugal type velocity limiter |
| EP2017431A2 (en) * | 2007-07-20 | 2009-01-21 | Profilmar | Spring box with anti-fall device for vertical roller shutter fitted with a safety device, and corresponding safety elements |
| CN201261670Y (en) * | 2008-09-02 | 2009-06-24 | 徐香顺 | Safety tong with speed limiting and anti-falling functions |
| CN101581194A (en) * | 2008-09-02 | 2009-11-18 | 洪俊龙 | Anti-drop device of electric rolling shutter door arranged on transmission chain wheels |
-
2010
- 2010-01-27 CN CN201010103483XA patent/CN101781968B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU619726A2 (en) * | 1976-11-18 | 1978-08-15 | Государственное Специальное Конструкторское Бюро По Ирригации | Ratchet detent |
| CN2053201U (en) * | 1989-09-13 | 1990-02-21 | 鹤岗矿务局机电总厂多种经营公司 | Centrifugally blocked safety rope sheave |
| CN2401684Y (en) * | 1999-11-26 | 2000-10-18 | 方大集团股份有限公司 | Side propelled rolling door |
| CN201032595Y (en) * | 2007-03-21 | 2008-03-05 | 胡敬礼 | Minisize centrifugal type velocity limiter |
| EP2017431A2 (en) * | 2007-07-20 | 2009-01-21 | Profilmar | Spring box with anti-fall device for vertical roller shutter fitted with a safety device, and corresponding safety elements |
| CN201261670Y (en) * | 2008-09-02 | 2009-06-24 | 徐香顺 | Safety tong with speed limiting and anti-falling functions |
| CN101581194A (en) * | 2008-09-02 | 2009-11-18 | 洪俊龙 | Anti-drop device of electric rolling shutter door arranged on transmission chain wheels |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101781968A (en) | 2010-07-21 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20220127 |