CN2036990U - Automatic vertical door-closing device with tapered guide wheel - Google Patents
Automatic vertical door-closing device with tapered guide wheel Download PDFInfo
- Publication number
- CN2036990U CN2036990U CN 88217465 CN88217465U CN2036990U CN 2036990 U CN2036990 U CN 2036990U CN 88217465 CN88217465 CN 88217465 CN 88217465 U CN88217465 U CN 88217465U CN 2036990 U CN2036990 U CN 2036990U
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- China
- Prior art keywords
- guide wheel
- cup
- shaped cam
- door
- spring
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- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The utility model provides an automatic vertical door-closing device with a tapered guide wheel, which is characterized in that the cooperation of the tapered guide wheel and a cup-shaped cam wheel converts the pushing door force into the potential energy of a spring to provide the closing door force. The automatic vertical door-closing device with a tapered guide wheel has small volume, light weight and low cost compared with a spring hinge, a floor spring or a hydraulic automatic door closer, and makes the building structure aesthetic and clean because the utility model is installed in the cavity of doors and windows. Compared with the existing automatic vertical door-closing device, the automatic vertical door-closing device with a tapered guide wheel has long service life because the tapered guide wheel can be easily made with high intensity, and there is no sliding or rubbing and cutting between the tapered guide wheel and the cup-shaped cam wheel.
Description
The utility model relates to vertical automatic door closer for building, particularly relates to a kind of vertical automatic door closer that adopts taper guide wheel and cup-shaped cam.
Be used for the vertical automatic door closer of self-closing doors window, the widely used so far spring hinge, floor spring or the hydraulic pressure automatic door closer that compare, the volume that all seems is little, in light weight, cost is low and be installed in door and window wing empty stomach inside thereby make building structure cleaning attractive in appearance.Existing vertical automatic door closer generally adopts ball or roller bearing to match with the cup-shaped cam that circles round and makes the power of pushing become the potential energy of spring so that the structure of door closing force to be provided.There is weak point in this structure: at first, on the contacted bus of bearer ring and cup-shaped cam curved surface, having only any is desirable relative rolling condition, slip is all arranged on other aspects, rub with the hands and cut phenomenon, thereby increased resistance and wearing and tearing; Secondly, because size restrictions, ball or roller in the bearing are very little, but the power of bearing is very big, thereby very easy cracked destruction, and the life-span is not long; Its three, adopt miniature bearing also to increase cost.Also have employing by two steel balls axle and floating piston to be constituted the vertical automatic door closer that spiral is paid, its weak point also is that the steel ball power of bearing is too big, broken easily or wearing and tearing.
The purpose of this utility model is that the vertical automatic door closer that a kind of cost is low, the life-span is long will be provided.
The purpose of this utility model is achieved in that adopting taper guide wheel shape cup-shaped cam to match makes the power of pushing become the potential energy of spring so that door closing force to be provided in vertical automatic door closer, and make that each point all is in desirable relative rolling condition on described guide wheel and the bus that described cam curved surface suits mutually, thereby designs simplification, cost were reduced, the life-span is improved.
Concrete structure of the present utility model is illustrated by following embodiment and accompanying drawing thereof.
Fig. 1 is the structural representation of this vertical automatic door closer.
Fig. 2 is the schematic diagram of piston rod assembly.
Fig. 3 is the schematic perspective view of cup-shaped cam.
As shown in Figure 1, this vertical automatic door closer comprises a cylindrical shell 1, center-pole 2, cup-shaped cam 3, piston rod 4, bearing pin 5, taper guide wheel 6, spring 7, pressure ring 8, plurality of balls 9 and revolution driving lever 10.
Cylindrical shell 1 utilizes revolution driving lever 10 to be fixedly mounted in the empty stomach of door and window wing framework, and the axle center of cylindrical shell 1 is consistent with door and window wing axle center.4 in piston rod and doorframe and window frame or ground fixed installation.It is rectangular that center-pole 2 its upper end extensions fixedly are housed in the cylindrical shell 1, become to be slidingly matched with the rectangular opening among the chassis 3a of cup-shaped cam 3, like this, the guide peg of center-pole 2 double as cup-shaped cams 3, be that cam 3 can slide up and down along center-pole 2, but can not rotate to it.The elastic force effect of the spring 7 that the bottom of cup-shaped cam 3 has been compressed always.And its other end has the shape of two symmetric arrangement such as the curved surface of mountain peak shape, and a little depression is all arranged again on two summits, shows as Fig. 3.This curved surface tightly heads on symmetry again and is installed in two taper guide wheels 6 on the piston rod 4.Guide wheel 6 is an axle with two pins 5 symmetrical and that be mounted obliquely within on the piston rod 4 in Fig. 2.Piston rod 4 can not slide up and down so can only rotate because of compression ring 8 restrictions.Ball 9 makes the rotary resistance of piston rod 4 very little.When door and window wing and doorframe and window frame relatively rotate, promptly during the switch door and window, piston rod 4 promptly rotates with respect to cup-shaped cam 3.At this moment taper guide wheel 6 will steadily roll and force the operation that cup-shaped cam 3 whole works fluctuate along the curved surface of cup-shaped cam 3, thereby change the compression degree and the elastic force of spring 7.When door and window was closed, taper guide wheel 6 was in the position, the lowest point of cup-shaped cam 3 curved surfaces.When the door and window wing inwardly or was outwards opened, cup-shaped cam 3 was forced to slide to cylindrical shell 1 bottom, spring 7 compressed energy-storages.As long as taper guide wheel 6 on the inclined-plane of cup-shaped cam 3, relies on spring force, the door and window wing can be closed voluntarily.When the door and window wing was opened to 90 °, taper guide wheel 6 was rolled into the recess at cup-shaped cam 3 curved surface peaks.At this moment, if do not continue to promote the door and window wing, it is with regard to stop motion, and door and window wing one is heading straight for.If again the door and window wing being closed the aspect to door and window promotes slightly, make taper guide wheel 6 leave the peak depression of cup-shaped cam 3 curved surfaces, then can recover automatic closing function again, the lowest point that is rolled into cup-shaped cam 3 curved surfaces until taper guide wheel 6 is located, and the door and window wing is closed fully.
Because cup-shaped cam 3 is symmetrical structures, so use the door and window of this vertical automatic door closer, not only can inwardly, outwards open 90 °, also can be inwardly or outwards open 180 °.This is particularly suitable for the bigger occasions of visitors flowrate such as shop, meeting-place.
The outside diameter of taper guide wheel 6 is greater than inside diameter.And the ratio of its outside diameter and inside diameter design just with being in equal proportions of the external diameter of cup-shaped cam 3, internal diameter.Like this, taper guide wheel 6 is during with the 3 relative rollings of cup-shaped cam, and the every bit on the bus that they suit mutually all is in desirable relative rolling condition, and without any sliding relatively and phenomenon is cut in stranding.Therefore, resistance is little when not only opening the door, and the life-span is long.The scheme of utilizing bearing that compares, simple in structure, cost is low.And above-mentioned taper guide wheel, than bearing or steel ball, all do to such an extent that intensity is higher easily, can bear bigger spring force and not easily broken destruction, this also is one of long reason of this vertical automatic door closer life-span.
For a performance that further improves this vertical automatic door device, can be designed to damp type.Its method is that each mating part is increased seal approach.Fill with hydraulic oil in cylindrical shell 1, unsteady cup-shaped cam 3 is divided into two oil pockets with inner barrel, and the unidirectional damping hole is set between two oil pockets, can make when opening the door damping little, and damping at closing time is big, has alleviated impact at closing time.The unidirectional damping hole can be arranged on stretch out pressure ring 8, with the hard-wired piston rod 4 of doorframe and window frame or ground on so that externally regulate the damping size.
Claims (3)
1, a kind of vertical automatic door closer comprises relatively turnable cylindrical shell and piston rod, in the described cylindrical shell spring is installed, and of the present utility model being characterised in that comprises and working in coordination so that the power of pushing converts a pair of taper guide wheel and the cup-shaped cam of spring potential energy to.
2, vertical automatic door closer as claimed in claim 1, it is characterized in that, the end that described cylindrical shell leaves piston rod is fixedly mounting a center-pole, surrounded by above-mentioned spring, hollow cup-shaped cam is between piston rod and center-pole, and entangle above-mentioned piston rod, described cup-shaped cam has a pair of mountain peak shape curved surface near an end of piston rod, described a pair of taper guide wheel and described mountain peak shape curved surface coincide, described cup-shaped cam has a rectangular opening near an end at center, described center-pole upper end has a rectangular extension, becomes to be slidingly matched with above-mentioned rectangular opening, and described spring is compressed in advance by the bottom of cup-shaped cam and center-pole.
3, vertical door check as claimed in claim 1 or 2 is characterized in that, the external diameter of described taper guide wheel equates with the ratio of internal diameter with the external diameter of the ratio of internal diameter with the cup-shaped cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88217465 CN2036990U (en) | 1988-08-31 | 1988-08-31 | Automatic vertical door-closing device with tapered guide wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88217465 CN2036990U (en) | 1988-08-31 | 1988-08-31 | Automatic vertical door-closing device with tapered guide wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2036990U true CN2036990U (en) | 1989-05-03 |
Family
ID=4850006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88217465 Withdrawn CN2036990U (en) | 1988-08-31 | 1988-08-31 | Automatic vertical door-closing device with tapered guide wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2036990U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234561A (en) * | 2014-09-11 | 2014-12-24 | 李龙 | Pneumatic floor spring |
| CN104879011A (en) * | 2015-04-28 | 2015-09-02 | 许昌正特门控科技有限公司 | Vertical door closer |
| CN105133984A (en) * | 2015-04-20 | 2015-12-09 | 许昌正特门控科技有限公司 | Vertical automatic door closing device |
| CN106639717A (en) * | 2017-02-20 | 2017-05-10 | 天津伟江门业有限公司 | Vertical door closer |
| CN113846920A (en) * | 2021-09-23 | 2021-12-28 | 澳柯玛股份有限公司 | Self-resetting hinge, vertical type refrigerated cabinet and using method |
-
1988
- 1988-08-31 CN CN 88217465 patent/CN2036990U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234561A (en) * | 2014-09-11 | 2014-12-24 | 李龙 | Pneumatic floor spring |
| CN105133984A (en) * | 2015-04-20 | 2015-12-09 | 许昌正特门控科技有限公司 | Vertical automatic door closing device |
| CN104879011A (en) * | 2015-04-28 | 2015-09-02 | 许昌正特门控科技有限公司 | Vertical door closer |
| CN106639717A (en) * | 2017-02-20 | 2017-05-10 | 天津伟江门业有限公司 | Vertical door closer |
| CN113846920A (en) * | 2021-09-23 | 2021-12-28 | 澳柯玛股份有限公司 | Self-resetting hinge, vertical type refrigerated cabinet and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |