CN204040717U - A kind of cam door closer - Google Patents
A kind of cam door closer Download PDFInfo
- Publication number
- CN204040717U CN204040717U CN201420382136.9U CN201420382136U CN204040717U CN 204040717 U CN204040717 U CN 204040717U CN 201420382136 U CN201420382136 U CN 201420382136U CN 204040717 U CN204040717 U CN 204040717U
- Authority
- CN
- China
- Prior art keywords
- cam
- camshaft
- shell
- door closer
- indenter
- Prior art date
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a kind of cam door closer, and for automatic door-closing, it discloses door closer-holder is by shell, spring, camshaft, bearing, shaft-cup, cam indenter forms, the spring of door closer-holder, cam indenter, camshaft are in turn arranged in the round cavity of shell from right to left, and one end of spring contacts with outer casing inner wall, and the other end contacts with one end of cam indenter, the other end of cam indenter is provided with pinch roller, and pinch roller contacts with the cam on camshaft.No matter be that L.H.flapped door or R.H.flapped door can be installed and used when the utility model has the advantages that it is installed, and easy for installation, long service life, maintenance cost are low.
Description
Technical field
The utility model relates to a kind of cam door closer, specifically a kind of door closer being realized installing regardless of left and right door by the cam on camshaft.
Background technology
Door closer is common automatic door-closing device, be common in floor gate, gate, community, hotel's door, on the doors such as gate, house, fire-proof door closer is divided again in door closer, full-automatic door closer, semi-automatic door closer, particularly can not automatically closing when door opening angle is maximum of semi-automatic door closer, just can automatically close when only departing from enabling thrust in non-maximum opening angle situation, and the semi-automatic door closer majority on existing market uses hydraulic cushion pulling force to close door, this structure installment time-division is left, right correspondence is installed, namely be that door closer that a left side is opened can not be contained on the door opened on the right side, L.H.flapped door or R.H.flapped door use will be selected during purchase, and application life is short, make troubles in installation with in using.
Utility model content
The purpose of this utility model is to provide a kind of cam door closer, its install time no matter be that L.H.flapped door or R.H.flapped door can be installed and used, and easy for installation, long service life, maintenance cost are low.
Technical solution of the present utility model is sliding seat, linking arm, pulley, on the basis of door closer-holder, the door closer-holder that is characterized in described is by shell, spring, camshaft, bearing, shaft-cup, cam indenter forms, camshaft inserts the inner chamber of shell from the plan vertical of shell, its top is protruded to the top of shell, shaft-cup to be enclosed within camshaft and top by being screwed at shell, that section of camshaft in the enclosure in chamber is fixed with cam, the wheel face of cam there are three concave surfaces, the recessed degree of depth of one of them concave surface is until camshaft cylinder, the degree of depth of two other concave surface is less than the half of cam radius, outer casing inner wall immediately below camshaft is provided with bearing, the inner ring of bearing is connected with camshaft bottom, the spring of door closer-holder, cam indenter, camshaft are in turn arranged in the round cavity of shell from right to left, one end of spring contacts with outer casing inner wall, the other end contacts with one end of cam indenter, the other end of cam indenter is provided with pinch roller, and pinch roller contacts with the cam on camshaft, one end and the camshaft top of linking arm are fixed, and its other end is hinged with the protruding end of sliding the pulley on seat.
Operating principle of the present utility model slides seat to be arranged on doorframe, then the pulley slided in seat is connected with the camshaft of door closer-holder by linking arm, that the most maximum concave surface of cam is headed at pinch roller at closing time, rotate under the traction of camshaft at linking arm when opening the door, pinch roller is walked and is also made cam indenter move Compress Spring on cam surface simultaneously, if the open angle of door departs from when being less than 90 degree push power open, pinch roller forces under the effect of spring stretches power walks until reset on that the most maximum concave surface of cam in the other direction on cam surface, so achieve automatic door-closing, if when the open angle of door is more than or equal to 90 degree, pinch roller rests on first little concave surface of pinch roller direction of travel when door departs from and pushes power open, and now door just remains on open mode.Because cam has two consistent with large concave surface pitch angles little recessed, install so door closer is applicable to left and right door simultaneously, and be decided by galling the application life of this kind of door closer, so service time is sufficiently long.
No matter be that L.H.flapped door or R.H.flapped door can be installed and used when the utility model has the advantages that it is installed, and easy for installation, long service life, maintenance cost are low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model when to be arranged on.
Fig. 2 is the utility model structural representation.
Fig. 3 is the utility model door closer-holder structural representation.
Fig. 4 is the utility model door closer-holder sectional structure schematic diagram.
Fig. 5 is the utility model door closer-holder decomposition texture schematic diagram.
Detailed description of the invention
According to Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, the utility model is arranged on doorframe 2 sliding seat 5, door closer-holder 3 is arranged on door 1, on the basis that the pulley 6 sliding seat 5 is connected with the camshaft 9 of door closer-holder 3 by linking arm 4, the door closer-holder 3 that is characterized in described is by shell 8, spring 12, camshaft 9, bearing 13, shaft-cup 10, cam presses 11 head groups to become, camshaft 9 inserts the inner chamber of shell from the plan vertical of shell 8, its top is protruded to the top of shell 8, shaft-cup 10 to be enclosed within camshaft 9 and top by being screwed at shell 8, that section of camshaft in shell 8 inner chamber is fixed with cam 14, the wheel face of cam 14 there are three concave surfaces, the recessed degree of depth of one of them concave surface is until camshaft cylinder, the degree of depth of two other concave surface is less than the half of cam radius, outer casing inner wall immediately below camshaft 9 is provided with bearing 13, the inner ring of bearing 13 is connected with camshaft 9 bottom, the spring 12 of door closer-holder, cam indenter 11, camshaft 9 are in turn arranged in the round cavity of shell 8 from right to left, one end of spring 12 contacts with shell 8 inwall, the other end contacts with one end of cam indenter 11, the other end of cam indenter 11 is provided with pinch roller 7, and pinch roller 7 contacts with the cam 14 on camshaft 9, one end and camshaft 9 top of linking arm 4 are fixed, and its other end is hinged with the protruding end of sliding the pulley 6 on seat 5.
Claims (1)
1. a cam door closer, it comprises slides seat, linking arm, pulley, door closer-holder, it is characterized in that described door closer-holder is by shell, spring, camshaft, bearing, shaft-cup, cam indenter forms, camshaft inserts the inner chamber of shell from the plan vertical of shell, its top is protruded to the top of shell, shaft-cup to be enclosed within camshaft and top by being screwed at shell, that section of camshaft in the enclosure in chamber is fixed with cam, the wheel face of cam there are three concave surfaces, the recessed degree of depth of one of them concave surface is until camshaft cylinder, the degree of depth of two other concave surface is less than the half of cam radius, outer casing inner wall immediately below camshaft is provided with bearing, the inner ring of bearing is connected with camshaft bottom, the spring of door closer-holder, cam indenter, camshaft are in turn arranged in the round cavity of shell from right to left, one end of spring contacts with outer casing inner wall, the other end contacts with one end of cam indenter, the other end of cam indenter is provided with pinch roller, and pinch roller contacts with the cam on camshaft, one end and the camshaft top of linking arm are fixed, and its other end is hinged with the protruding end of sliding the pulley on seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420382136.9U CN204040717U (en) | 2014-07-11 | 2014-07-11 | A kind of cam door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420382136.9U CN204040717U (en) | 2014-07-11 | 2014-07-11 | A kind of cam door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204040717U true CN204040717U (en) | 2014-12-24 |
Family
ID=52241399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420382136.9U Expired - Fee Related CN204040717U (en) | 2014-07-11 | 2014-07-11 | A kind of cam door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204040717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112038896A (en) * | 2020-09-03 | 2020-12-04 | 鲁特电工股份有限公司 | Small-size transformer substation guard room for electric power |
-
2014
- 2014-07-11 CN CN201420382136.9U patent/CN204040717U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112038896A (en) * | 2020-09-03 | 2020-12-04 | 鲁特电工股份有限公司 | Small-size transformer substation guard room for electric power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20170711 |