CN203347400U - Door closer with novel sealing structure - Google Patents
Door closer with novel sealing structure Download PDFInfo
- Publication number
- CN203347400U CN203347400U CN 201320366513 CN201320366513U CN203347400U CN 203347400 U CN203347400 U CN 203347400U CN 201320366513 CN201320366513 CN 201320366513 CN 201320366513 U CN201320366513 U CN 201320366513U CN 203347400 U CN203347400 U CN 203347400U
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- CN
- China
- Prior art keywords
- gear shaft
- door closer
- sealing ring
- sealing structure
- inner chamber
- 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
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Abstract
The utility model relates to a door closer with a novel sealing structure. The door closer comprises a shell body with an inner cavity, a piston body which is arranged in the inner cavity and can move in the horizontal direction, two edge covers which are arranged on the shell body and respectively provided with a through hole, a gear shaft which is arranged in the through holes of the two edge covers in a rotatable and penetrating mode, and seal rings which are arranged between the gear shaft and the edge covers. The inner cavity is filled with hydraulic oil, the through holes are communicated with the inner cavity, a gear which is meshed with the piston body is arranged on the gear shaft, grooves which are matched with the seal rings in shape are formed in the gear shaft in the circumferential direction of the gear shaft, and each seal ring is arranged between one of the grooves and one of the edge covers. The utility model aims to provide the door closer with the novel sealing structure, and the door closer has a good sealing effect.
Description
Technical field
the utility model relates to a kind of door closer, particularly a kind of door closer with novel sealing structure.
Background technology
the basic role of door closer is that door is closed automatically, can also steadily close to protect doorframe and door body.The basic building block of door closer has housing, tooth bar plunger, the travelling gear with cavity.The gear shaft of travelling gear is located in the cavity of housing rotationally, and gear driven tooth bar plunger along continuous straight runs moves, and in the cavity of housing, is full of hydraulic oil.In prior art, the gear shaft two ends are located in rotationally respectively Gai Zhong， limit, two limits lid and are connected with housing, by between limit lid and gear shaft, sealing ring being set, prevent the hydraulic oil seepage.But sealing ring contacts as the some contact with gear shaft and limit lid, and contact area is little, and sealing effectiveness is poor.
Summary of the invention
for the problems referred to above, the purpose of this utility model is to provide a kind of door closer with novel sealing structure, and it has sealing effectiveness preferably.
for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
a kind of door closer with novel sealing structure, comprise the housing with inner chamber, but be arranged in described inner chamber and piston body that along continuous straight runs moves, be arranged on described housing and there is two limits lid of through hole, be located in rotationally the gear shaft in the through hole of described two limits lid and be arranged on described gear shaft the sealing ring between covering with described limit, be full of hydraulic oil in described inner chamber, described through hole and described inner chamber connect, be provided with the gear be meshed with described piston body on described gear shaft, described gear shaft offers along its circumferencial direction the groove that the shape with described sealing ring is complementary, described sealing ring is arranged between described groove and limit lid.
preferably, described limit lid comprises body with through hole, the circle flange formed along the circumferencial direction of described body, described flange is fixedly installed on described body and towards described inner chamber, the junction of described body and described flange is formed with and the contacted corner part of described sealing ring, and the shape of described corner part inwall and the shape of described sealing ring are complementary.
preferably, the cross section of described sealing ring is circular.
more preferably, the shape of the inwall of described corner part roughly is circular arc.
preferably, described groove is circular arc along the cross section of the axis direction of described gear shaft.
the utility model adopts above structure, has following advantage: by the part that door closer is contacted with sealing ring, the shape that shape of the inwall of gear shaft, limit lid corner part is set to be complementary with it, increased the contact area with sealing ring; Contact with the point of gear shaft, limit lid compared to sealing ring in prior art, by offer the groove that holds sealing ring in gear shaft, sealing ring has been played to a position-limiting action, its sealing effectiveness is more stable.
The accompanying drawing explanation
the sectional view that accompanying drawing 1 is a kind of preferred embodiment of the present utility model;
the structural representation that accompanying drawing 2 is limit of the present utility model lid.
in accompanying drawing: 1, housing; 11, inner chamber; 2, Bian Gai; 21, body; 211, through hole; 22, flange; 23, corner part; 3, gear shaft; 31, gear; 32, groove; 4, sealing ring.
The specific embodiment
below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be those skilled in the art will recognize that, protection domain of the present utility model is made to more explicit defining.
Embodiment
shown in accompanying drawing 1, a kind of door closer with novel sealing structure, comprise the housing 1 with inner chamber 11, but be arranged in described inner chamber 11 and piston body (not shown) that along continuous straight runs moves, be arranged on described housing 1 and there is two limits lid 2 of through hole 211, be located in rotationally the gear shaft 3 in the through hole 211 of described two limits lid 2 and be arranged on described gear shaft 3 and cover the sealing ring 4 between 2 with described limit, be full of hydraulic oil in described inner chamber 11, described through hole 211 connects with described inner chamber 11, be provided with the gear 31 be meshed with described piston body on described gear shaft 3, described gear shaft 3 offers along its circumferencial direction the groove 32 that the shape with described sealing ring 4 is complementary, described sealing ring 4 is arranged between described groove 32 and limit lid 2.The axis of the axis of piston body and gear shaft 3 is perpendicular, along with the rotation of gear 31, piston body can be in inner chamber along continuous straight runs reciprocating.
shown in accompanying drawing 2, described limit lid 2 comprises body 21 with through hole 211, the circle flange 22 formed along the circumferencial direction of described body 21, described flange 22 is fixedly installed on described body 21 and towards described inner chamber 11, described body 21 is formed with and the contacted corner part 23 of described sealing ring 4 with the junction of described flange 22, and the shape of described corner part 23 inwalls and the shape of described sealing ring 4 are complementary.
in the present embodiment, the cross section of described sealing ring 4 is circular, and therefore the shape of described corner part 23 inwalls roughly is circular arc.Described groove 32 is also circular arc along the cross section of the axis direction of described gear shaft 3.
the utility model adopts above structure, has following advantage: by the part that door closer is contacted with sealing ring, the shape that shape of the inwall of gear shaft, limit lid corner part is set to be complementary with it, increased the contact area with sealing ring; Contact with the point of gear shaft, limit lid compared to sealing ring in prior art, by offer the groove that holds sealing ring in gear shaft, sealing ring has been played to a position-limiting action, its sealing effectiveness is more stable.
above-described embodiment is only explanation technical conceive of the present utility model and characteristics; it is a kind of preferred embodiment; its purpose is to allow the person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to Spirit Essence of the present utility model change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (5)
1. the door closer with novel sealing structure, it is characterized in that: comprise the housing with inner chamber, but be arranged in described inner chamber and piston body that along continuous straight runs moves, be arranged on described housing and there is two limits lid of through hole, be located in rotationally the gear shaft in the through hole of described two limits lid and be arranged on described gear shaft the sealing ring between covering with described limit, be full of hydraulic oil in described inner chamber, described through hole and described inner chamber connect, be provided with the gear be meshed with described piston body on described gear shaft, described gear shaft offers along its circumferencial direction the groove that the shape with described sealing ring is complementary, described sealing ring is arranged between described groove and limit lid.
2. the door closer with novel sealing structure according to claim 1, it is characterized in that: described limit lid comprises body with through hole, the circle flange formed along the circumferencial direction of described body, described flange is fixedly installed on described body and towards described inner chamber, the junction of described body and described flange is formed with and the contacted corner part of described sealing ring, and the shape of described corner part inwall and the shape of described sealing ring are complementary.
3. the door closer with novel sealing structure according to claim 1 is characterized in that: the cross section of described sealing ring is for circular.
4. according to the described door closer with novel sealing structure of claim 2 or 3, it is characterized in that: the shape of the inwall of described corner part roughly is circular arc.
5. the door closer with novel sealing structure according to claim 3, it is characterized in that: described groove is circular arc along the cross section of the axis direction of described gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320366513 CN203347400U (en) | 2013-06-25 | 2013-06-25 | Door closer with novel sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320366513 CN203347400U (en) | 2013-06-25 | 2013-06-25 | Door closer with novel sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203347400U true CN203347400U (en) | 2013-12-18 |
Family
ID=49747311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320366513 Expired - Fee Related CN203347400U (en) | 2013-06-25 | 2013-06-25 | Door closer with novel sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203347400U (en) |
Cited By (1)
| 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 |
-
2013
- 2013-06-25 CN CN 201320366513 patent/CN203347400U/en not_active Expired - Fee Related
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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Shuangfeng town of Oujiang road Suzhou city Jiangsu province 215416 Taicang City No. 1 Patentee after: Suzhou Fuerda Industry Co., Ltd. Address before: Shuangfeng town of Oujiang road Suzhou city Jiangsu province 215416 Taicang City No. 1 Patentee before: Suzhou Fuerda Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20160625 |