CN202788394U - Composite lubrication grease damping door closer - Google Patents
Composite lubrication grease damping door closer Download PDFInfo
- Publication number
- CN202788394U CN202788394U CN 201220457201 CN201220457201U CN202788394U CN 202788394 U CN202788394 U CN 202788394U CN 201220457201 CN201220457201 CN 201220457201 CN 201220457201 U CN201220457201 U CN 201220457201U CN 202788394 U CN202788394 U CN 202788394U
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- China
- Prior art keywords
- cavity
- door closer
- plunger
- grease
- housing
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- Expired - Fee Related
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Abstract
The utility model provides a composite lubrication grease damping door closer, which comprises a shell, and a plunger, a spring component, a unidirectional valve, a speed regulation valve and a gear shaft which are arranged in the shell, wherein a rack is arranged on the plunger; the rack is meshed with a gear arranged on the gear shaft; an inner closed cavity of the shell is divided into a first cavity and a second cavity by the plunger; and composite lubrication grease is filled in the first cavity and the second cavity. According to the composite lubrication grease damping door closer, the composite lubrication grease replaces the conventional anti-abrasion hydraulic oil; the composite lubrication grease is high in denseness, high in flowability and low in permeability; and the problem of seepage of the door closer can be solved. Moreover, the thickness of an oil film produced between two motion friction surfaces is greatly increased, the processing difficulty is reduced, the cost of a product is reduced, and the service life of the door closer is prolonged.
Description
Technical field
The utility model relates to a kind of door closer, is specifically related to a kind of complex grease damping door closer.
Background technology
Door closer is a kind of device that can make the slow autoshutdown of door leaf.Specifically, when door leaf was opened, door closer pivoted arm turning gear wheel shaft, gear shaft promoted plunger with tooth bar with spring-compressed; To promote gear shaft by spring force by pivoted arm door leaf to cut out when door leaf cuts out.
For make door leaf can by people need speed close, prevent to impact, be marked with anti-wear hydraulic oil in the door closer body, by opening or closing of one way valve, can effectively stop the impact of plunger.Anti-wear hydraulic oil has two effects, the one, damping action, the 2nd, lubrication.In the prior art, what the door closer body was in-built all is the anti-wear hydraulic oil of liquid, and this oily permeability is very strong, and the formed oil film of two attrition surfaces is also very thin.Very high to seal request like this, machining accuracy is also very high, the door closer leakage of oil occurs easily, and the fit clearance of plunger and door closer body opening is improper and the problem such as scrap.
The utility model content
The utility model provides a kind of and can prevent the door closer seepage, processed complex grease damping door closer easy, long service life for above-mentioned the deficiencies in the prior art.
The utility model is achieved by the following technical solution:
A kind of complex grease damping door closer comprises a housing, and is arranged at plunger, spring assembly, one way valve, flow speed control valve and gear shaft in the housing; Be provided with tooth bar on the plunger, described tooth bar is intermeshing with the gear that is installed on the gear shaft; The inside closed cavity of described plunger handle housing is divided into the first cavity and the second cavity;
It is characterized in that: spring assembly is arranged in the second cavity, and the top is pressed between plunger and the housing; One way valve is arranged on the end of plunger, is used for the first cavity and the connection of the second cavity or obstruct; Be provided with vertical oilhole and perpendicular oilhole on the described housing, vertical oilhole is used for being communicated with flow speed control valve and the second cavity, and perpendicular oilhole is used for being communicated with the first cavity and flow speed control valve; Flow speed control valve and housing are threaded connection; All be filled with complex grease in the first cavity and the second cavity.
As preferably, described complex grease is complex calcium lubricating grease, composite aluminum base grease, complex lithium grease or complex calcium sulfonate grease.
As preferably, the end of described housing is provided with an oil filler point, is provided with plug and sealing mat on the oil filler point.
As preferably, described one way valve is the ball type one way valve, and the end of plunger offers a valve opening, and the steel ball of one way valve and valve opening matched in clearance can be freely movable in valve opening.
As preferably, be provided with bearing and sealing ring between described gear shaft and the housing.
Compared with prior art, the utlity model has following beneficial effect:
1, the utility model adopts complex grease to replace traditional anti-wear hydraulic oil, because the denseness of complex grease is large, flowability and permeability are little, can solve the leakage problems of door closer.The oil film thickness that produces between the attrition surface of simultaneously two motions also increases; Be gear and the tooth bar flank of tooth, and the oil film on outer plunger surface and the inner closed cavity of door closer surface is thicker, so can reduce the wearing and tearing of the flank of tooth and door closer endoporus, greatly increases the application life of door closer.
2, be filled with complex grease in the enclosure interior closed cavity of the present utility model, complex grease circulates in housing by one way valve, flow speed control valve, vertical oilhole and perpendicular oilhole; Make machining accuracy and the roughness grade of plunger cylindrical and door closer body opening reduce 2-3 grade, impact and noise are little, reliable and stable during switch gate, reduce percent defective, reduce difficulty of processing, have reduced product cost, increase economic efficiency.
Description of drawings
Fig. 1 is the structural representation (also being the C-C sectional drawing of Fig. 2) of complex grease damping door closer described in the utility model;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the B-B sectional drawing of Fig. 1;
Fig. 4 is the D-D sectional drawing of Fig. 2.
The specific embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Shown in Fig. 1-4, the utility model provides a kind of complex grease damping door closer, comprises a housing 1, and is arranged at plunger 3, spring assembly 4, one way valve 6, flow speed control valve 9 and gear shaft 13 in the housing 1; Be provided with tooth bar on the plunger 3, described tooth bar is intermeshing with the gear that is installed on the gear shaft 13; Be provided with bearing 14 and sealing ring 15 between gear shaft 13 and the housing 1.Described plunger 3 is divided into the first cavity 20 and the second cavity 21 to the inside closed cavity of housing 1; Spring assembly 4 is arranged in the second cavity 21, and the top is pressed between plunger 3 and the housing 1; One way valve 6 is arranged on the end of plunger 3, is used for the first cavity 20 and the second cavity 21 are communicated with or obstruct; Be provided with vertical oilhole 7 and perpendicular oilhole 8 on the described housing 1, vertical oilhole 7 is used for being communicated with flow speed control valve 9 and the second cavity 21, and perpendicular oilhole 8 is used for being communicated with the first cavity 20 and flow speed control valve 9; Flow speed control valve 9 is threaded connection with housing 1; The first cavity 20 and the second cavity 21 interior complex greases 5 that all are filled with, wherein complex grease 5 can be in complex calcium lubricating grease, composite aluminum base grease, complex lithium grease or the complex calcium sulfonate grease any one.
The end of present embodiment middle shell 1 is provided with an oil filler point 10, is provided with plug 11 and sealing mat 12 on the oil filler point 10.During oiling, dismantle plug 11 and sealing mat 12, the 1 interior injection complex grease 5 from oil filler point 10 to housing tightens after plug 11 adds sealing mat 12 afterwards and gets final product.
One way valve 6 in the present embodiment is ball type one way valve 6, and the end of plunger 3 offers a valve opening, and the steel ball of one way valve 6 and valve opening matched in clearance can be freely movable in valve opening.
The course of work of complex grease damping door closer described in the utility model is as follows:
When opening the door, the steel ball of one way valve 6 moves to left, and complex grease 5 pressurizeds of door closer housing 1 right-hand member (the second cavity 21) flow to the left end (the first cavity 20) of door closer housing 1 by one way valve 6 valve openings, spring assembly 4 compressed energy storage this moment;
At closing time, spring assembly 4 promotes plunger 3 and moves to left, and one way valve 6 steel balls seal valve opening.Complex grease 5 is got back to the right-hand member (the second cavity 21) of door closer housing 1 by perpendicular oilhole 8, vertical oilhole 7 and flow speed control valve 9.Can reverse the stream oil cross-sectional sizes that flow speed control valve 9 changes vertical oilhole 7, reach the purpose of adjusting door closing speed.
Claims (5)
1. a complex grease damping door closer comprises a housing, and is arranged at plunger, spring assembly, one way valve, flow speed control valve and gear shaft in the housing; Be provided with tooth bar on the plunger, described tooth bar is intermeshing with the gear that is installed on the gear shaft; The inside closed cavity of described plunger handle housing is divided into the first cavity and the second cavity;
It is characterized in that: spring assembly is arranged in the second cavity, and the top is pressed between plunger and the housing; One way valve is arranged on the end of plunger, is used for the first cavity and the connection of the second cavity or obstruct; Be provided with vertical oilhole and perpendicular oilhole on the described housing, vertical oilhole is used for being communicated with flow speed control valve and the second cavity, and perpendicular oilhole is used for being communicated with the first cavity and flow speed control valve; Flow speed control valve and housing are threaded connection; All be filled with complex grease in the first cavity and the second cavity.
2. complex grease damping door closer according to claim 1 is characterized in that, described complex grease is complex calcium lubricating grease, composite aluminum base grease, complex lithium grease or complex calcium sulfonate grease.
3. complex grease damping door closer according to claim 1 is characterized in that the end of described housing is provided with an oil filler point, is provided with plug and sealing mat on the oil filler point.
4. according to complex grease damping door closer claimed in claim 1, it is characterized in that described one way valve is the ball type one way valve, the end of plunger offers a valve opening, and the steel ball of one way valve and valve opening matched in clearance can be freely movable in valve opening.
5. according to complex grease damping door closer claimed in claim 1, it is characterized in that, be provided with bearing and sealing ring between described gear shaft and the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220457201 CN202788394U (en) | 2012-09-10 | 2012-09-10 | Composite lubrication grease damping door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220457201 CN202788394U (en) | 2012-09-10 | 2012-09-10 | Composite lubrication grease damping door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788394U true CN202788394U (en) | 2013-03-13 |
Family
ID=47815670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220457201 Expired - Fee Related CN202788394U (en) | 2012-09-10 | 2012-09-10 | Composite lubrication grease damping door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788394U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306565A (en) * | 2013-06-25 | 2013-09-18 | 苏州市富尔达实业有限公司 | Door closer with novel sealing structure |
| CN111502460A (en) * | 2020-05-27 | 2020-08-07 | 肇庆市安迅液压五金有限公司 | Time-delay multi-section force-regulating door closer |
-
2012
- 2012-09-10 CN CN 201220457201 patent/CN202788394U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306565A (en) * | 2013-06-25 | 2013-09-18 | 苏州市富尔达实业有限公司 | Door closer with novel sealing structure |
| CN103306565B (en) * | 2013-06-25 | 2016-08-10 | 苏州市富尔达科技股份有限公司 | There is the door closer sealing structure |
| CN111502460A (en) * | 2020-05-27 | 2020-08-07 | 肇庆市安迅液压五金有限公司 | Time-delay multi-section force-regulating door 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: 20130313 Termination date: 20170910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |