CN203716715U - Piston assembly for door closer - Google Patents
Piston assembly for door closer Download PDFInfo
- Publication number
- CN203716715U CN203716715U CN201320789085.7U CN201320789085U CN203716715U CN 203716715 U CN203716715 U CN 203716715U CN 201320789085 U CN201320789085 U CN 201320789085U CN 203716715 U CN203716715 U CN 203716715U
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- CN
- China
- Prior art keywords
- piston
- door closer
- key slot
- slot chamber
- transmission
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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.)
- Expired - Fee Related
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Abstract
The utility model aims at providing a piston assembly for a door closer, and the piston assembly is capable of realizing bidirectional opening and closing of the door closer. According to the technical scheme, a key groove cavity running through the radial direction of a piston body is axially formed between the two ends of the piston body; a transmission gear shaft is arranged in the key groove cavity in a penetrating manner and is radially and convexly provided with a plurality of rotary teeth; transmission teeth engaged with the rotary teeth are arranged on the two opposite side surfaces of the key groove cavity; the key groove cavity comprises a starting cavity and a stopping cavity; a yielding gap capable of realizing positive or negative rotation of the transmission gear shaft is formed in the top of the first transmission tooth relative to the starting cavity. According to the piston assembly, the transmission teeth are arranged on the two sides of the key groove cavity and the yielding gap is formed in the top of the first transmission tooth relative to the starting cavity, so that the transmission gear shaft can rotate positively or negatively in the piston body, the bidirectional torsional transmission of the piston assembly is realized, and the bidirectional opening and closing of the door closer is achieved.
Description
Technical field
The utility model relates to a kind of door closer, and more particularly, it relates to a kind of piston for door closer assembly.
Background technology
Modern hydraulic door-closer (abbreviation door closer) starts from a patent of twentieth century initial stage American registration, and it is different from traditional door closer, is to carry out throttling by the liquid in door closer to reach cushioning effect.The core of hydraulic door-closer design philosophy is to realize the control to the process of closing the door, and the various functional parameters of the process of closing the door can be regulated according to human needs.The meaning of door closer is not only door automatically to close, and can also protect doorframe and door body (steadily closing), the more important thing is that door closer has become a very important operating part of modern architecture intelligent management.
The basic building block of hydraulic door-closer has housing, connecting rod, is arranged on piston component, back-moving spring, end cap in housing, and wherein piston component includes piston and is arranged in the driving gearshaft in piston, and piston one end is provided with the oilhole other end and is provided with unidirectional fuel tap.The operating principle of door closer is: in the time opening the door, the action of door body drivening rod, and driving gearshaft is rotated, driven plunger is to right-hand movement, in the process moving to right at piston, back-moving spring is compressed, also pressurized of hydraulic oil in right chamber, the unidirectional fuel tap spheroid in piston left side is opened under the effect of oil pressure, hydraulic oil in right chamber flows in left chamber through unidirectional fuel tap, after the process of opening the door completes, because back-moving spring is compressed in opening process, the elastic potential energy of putting aside is released, by the piston thruster of turning left, drive driving gearshaft and door closer connecting rod to rotate, door is closed.
In prior art, piston can only carry out one-directional rotation with driving gearshaft and coordinate, therefore door closer can only carry out unidirectional keying, after so door closer is arranged on door, door body can only unidirectionally open and close, therefore, urgently need a kind of door closer of realizing two-way keying, to solve the problem that existing door closer can only unidirectional keying.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of piston for door closer assembly of realizing the two-way keying of door closer.
For achieving the above object, the utility model provides following technical scheme: a kind of piston for door closer assembly, comprise and be the piston only of column setting and be arranged in the driving gearshaft in piston only, the axis of described driving gearshaft and the vertical setting mutually of the axis of piston only, described piston only two ends are respectively equipped with oilhole and unidirectional fuel tap, between described piston only two ends, be provided with vertically and run through its key slot chamber radially, described driving gearshaft is arranged in key slot chamber, this driving gearshaft radial convex is provided with some turning gears, the two sides that described key slot chamber is oppositely arranged are equipped with the driving cog for engaging with turning gear, described key slot chamber includes initial cavity volume and stops cavity volume, tooth top with respect to first driving cog of initial cavity volume is provided with the breach of stepping down that can realize driving gearshaft forward or reverse.
Described key slot chamber two ends are equipped with groove, and described groove is symmetricly set in key slot chamber two ends.
Between described unidirectional fuel tap and piston only, be provided with rubber sheet gasket, described rubber sheet gasket is provided with wire lath compartment.
A kind of piston for door closer assembly, comprise and be the piston only of column setting and be arranged in the driving gearshaft in piston only, the axis of described driving gearshaft and the vertical setting mutually of the axis of piston only, described piston only two ends are respectively equipped with oilhole and unidirectional fuel tap, between described piston only two ends, be provided with vertically and run through its key slot chamber radially, described driving gearshaft is arranged in key slot chamber, this driving gearshaft radial convex is provided with some turning gears, the two sides that described key slot chamber is oppositely arranged are equipped with the driving cog for engaging with turning gear, described key slot chamber includes initial cavity volume and stops cavity volume, tooth top with respect to first driving cog of initial cavity volume is provided with the breach of stepping down that can realize driving gearshaft forward or reverse.By adopting technique scheme, key slot chamber both sides are equipped with driving cog, and the tooth top with respect to first driving cog of initial cavity volume is provided with the breach of stepping down, make driving gearshaft can in piston only, realize forward transmission or reversion transmission, in the time pushing, driving gearshaft clockwise rotates, and driven plunger body is to right-hand movement; In the time of sliding door, driving gearshaft rotates counterclockwise, and driven plunger body, to right-hand movement, makes piston component realize bidirectional torsion transmission, allows door closer realize two-way keying.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model piston for door closer assembly;
Fig. 2 is the A-A sectional view in Fig. 1;
Fig. 3 is the structural representation of rubber sheet gasket;
Fig. 4 is the structural representation without the piston only of groove.
Reference numeral: 1, piston only; 2, driving gearshaft; 3, rubber sheet gasket; 11, oilhole; 12, unidirectional fuel tap; 13, key slot chamber; 14, groove; 21, turning gear; 31, wire lath compartment; 131, driving cog; 132, initial cavity volume; 133, stop cavity volume; 1311, the breach of stepping down.
Detailed description of the invention
Referring to figs. 1 through Fig. 4, the utility model piston for door closer assembly embodiment is described further.
A kind of piston for door closer assembly, comprise and be the piston only 1 of column setting and be arranged in the driving gearshaft 2 in piston only 1, the vertical setting mutually of the axis of the axis of described driving gearshaft 2 and piston only 1, described piston only 1 two ends are respectively equipped with oilhole 11 and unidirectional fuel tap 12, between described piston only 1 two ends, be provided with vertically and run through its key slot chamber 13 radially, described driving gearshaft 2 is arranged in key slot chamber 13, these driving gearshaft 2 radial convexes are provided with some turning gears 21, the two sides that described key slot chamber 13 is oppositely arranged are equipped with the driving cog 131 for engaging with turning gear 21, described key slot chamber 13 includes initial cavity volume 132 and stops cavity volume 133, tooth top with respect to first driving cog 131 of initial cavity volume 132 is provided with the breach 1311 of stepping down that can realize driving gearshaft 2 forward or reverse.Key slot chamber 13 both sides are equipped with driving cog 131, and the tooth top with respect to first driving cog 131 of initial cavity volume 132 is provided with the breach 1311 of stepping down, make driving gearshaft 2 can piston only 1 interior realize forward transmission or reversion transmission, in the time pushing, driving gearshaft 2 clockwise rotates, and driven plunger body 1 is to right-hand movement; In the time of sliding door, driving gearshaft 2 rotates counterclockwise, and driven plunger body 1, to right-hand movement, makes piston component realize bidirectional torsion transmission, allows door closer realize two-way keying.
Described key slot chamber 13 two ends are equipped with groove 14, and described groove 14 is symmetricly set in key slot chamber 13 two ends.Groove 14 can suitably reduce the contact area of driving cog 131 and turning gear 21, is conducive to reduce the frictional force of driving cog 131 and turning gear 21, makes driving gearshaft 2 more flexible in the interior rotation of piston only 1; And piston only 1 is column setting, the thinner thickness of driving cog 131 transverse tooth thickness at key slot chamber 13 two ends, as shown in Figure 4, make driving cog 131 inadequate with the bonding strength of piston only 1, the driving cog 131 at two ends easily produces even fracture of wearing and tearing, not only affect the application life of piston only 1, more easily cause door closer entirety to scrap.The groove 14 that is symmetrically set in key slot chamber 13 two ends has increased the thickness of driving cog 131 transverse tooth thickness at key slot chamber 13 two ends, in having strengthened the bonding strength of driving cog 131 and piston only 1, also make driving cog 131 two ends there is consistent fatigue resistance, improve the mechanical performance of piston only 1, extended the application life of piston only 1.
Between described unidirectional fuel tap 12 and piston only 1, be provided with rubber sheet gasket 3, described rubber sheet gasket 3 is provided with wire lath compartment 31.Rubber sheet gasket 3 can increase the sealing between unidirectional fuel tap 12 and piston only 1, the wire lath compartment 31 of rubber sheet gasket 3 can filter right chamber in housing and flow to the hydraulic oil in left chamber, avoid the unidirectional fuel tap 12 of impurity process in hydraulic oil, damage unidirectional fuel tap 12, and the application life of reducing unidirectional fuel tap 12, even cause impurity to be jammed in unidirectional fuel tap 12, cause unidirectional fuel tap 12 normally to work.Wire lath compartment 31 can be made up of metals such as copper, aluminium, stainless steels, and the utility model preferred version is stainless steel, because stainless steel is difficult for getting rusty, is difficult for and hydraulic oil generation chemical reaction, guarantees that the hydraulic oil in cavity volume can not produce impurity because of wire lath compartment 31.
Claims (3)
1. a piston for door closer assembly, comprise and be the piston only of column setting and be arranged in the driving gearshaft in piston only, the axis of described driving gearshaft and the vertical setting mutually of the axis of piston only, described piston only two ends are respectively equipped with oilhole and unidirectional fuel tap, it is characterized in that: between described piston only two ends, be provided with vertically and run through its key slot chamber radially, described driving gearshaft is arranged in key slot chamber, this driving gearshaft radial convex is provided with some turning gears, the two sides that described key slot chamber is oppositely arranged are equipped with the driving cog for engaging with turning gear, described key slot chamber includes initial cavity volume and stops cavity volume, tooth top with respect to first driving cog of initial cavity volume is provided with the breach of stepping down that can realize driving gearshaft forward or reverse.
2. piston for door closer assembly according to claim 1, is characterized in that: described key slot chamber two ends are equipped with groove, and described groove is symmetricly set in key slot chamber two ends.
3. piston for door closer assembly according to claim 1 and 2, is characterized in that: between described unidirectional fuel tap and piston only, be provided with rubber sheet gasket, described rubber sheet gasket is provided with wire lath compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789085.7U CN203716715U (en) | 2013-12-03 | 2013-12-03 | Piston assembly for door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789085.7U CN203716715U (en) | 2013-12-03 | 2013-12-03 | Piston assembly for door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203716715U true CN203716715U (en) | 2014-07-16 |
Family
ID=51155882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320789085.7U Expired - Fee Related CN203716715U (en) | 2013-12-03 | 2013-12-03 | Piston assembly for door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203716715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118995A (en) * | 2018-01-30 | 2018-06-05 | 肇庆市裕兴门控有限公司 | Ultrathin hidden fireproof door window closer |
-
2013
- 2013-12-03 CN CN201320789085.7U patent/CN203716715U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118995A (en) * | 2018-01-30 | 2018-06-05 | 肇庆市裕兴门控有限公司 | Ultrathin hidden fireproof door window closer |
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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: 20140716 Termination date: 20181203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |