CN2378491Y - Door-closing device - Google Patents
Door-closing device Download PDFInfo
- Publication number
- CN2378491Y CN2378491Y CN 98244503 CN98244503U CN2378491Y CN 2378491 Y CN2378491 Y CN 2378491Y CN 98244503 CN98244503 CN 98244503 CN 98244503 U CN98244503 U CN 98244503U CN 2378491 Y CN2378491 Y CN 2378491Y
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- door closer
- oil
- hydraulic
- piston
- 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 discloses a door closing device, comprising a work rod (1), an oil cylinder (2), and hydraulic oil in the oil cylinder (2). The oil cylinder (2) is provided with a hydraulic regulating device (3). The door closing device designed according to the topic of the utility model can effectively solve the problems that when the door closing device is in work, the oil overflowing and leaking phenomenon produced by the temperature difference can lead to the unstable work of the door closing device, the high noise of the door closing device, etc.
Description
The utility model is the improvement invention about the door closer hydraulic regulating device.
In existing technology, with the door closer of hydraulic oil as resisting medium, its major defect be easily overflow, leakage of oil or impact, noise is especially obvious to the door closer reflection that 900 types stop door, its main cause is: in the door closer oil cylinder as the hydraulic oil of resisting medium, under normal circumstances should be full of whole cavity and could guarantee operate as normal, if it is full inadequately that door closer inner chamber oil adds, there is the space, door closer will produce impact and close a speed inequality when work, defect such as noise influence stable working.If but the overfill of door closer inner chamber promptly applies certain precompression, as the door closer of product, once to using place or in transit, if when environment temperature is higher, because the rising-heat contracting-cold of liquid oil.Liquid oil in the door closer oil pocket will be heated splash bloated, simultaneously because the Incoercibility of liquid oil constantly increases the liquid oil pressure in the oil pocket, when exceeding the sealability of potted component as if pressure, liquid oil in the door closer body will be broken through sealant and oil spilling, leakage of oil, and this is an one.They are two years old, completely leave fraction cavity or canful just inadequately if the oil of door closer inner chamber adds, there is not precompression, when the environment temperature when so the door closer product is to use occasion work is low, the liquid oil volume of door closer inner chamber will be caught a cold and be dwindled, and form parital vacuum in the oil pocket, thereby cause door closer when work, to impact, the speed inequality, defect such as noise influence the stability of work.For solving above drawback, some producer takes quantitative refueling or preheating to refuel and fills it up with the way of taking out any behind the oil again at present, to avoid spill and leakage oil when the variation of ambient temperature.More than these ways only can only solve reduce behind the product export overflow, the problem of leakage of oil, and after can not solving product export, because ambient temperature changes the product quality problem that liquid oil harmomegathus causes at all.
Disadvantage at the prior art existence, the utility model aims to provide a kind of oil cylinder hydraulic adjusting device that is provided with on door closer, to overcome spill and leakage oil, cause hydraulic pressure to reduce defectives such as the formation operating noise that cavity brought, impact, unstability by temperature Change.
The utility model is realized in the following way, comprise the door closer housing, working beam, oil cylinder, hydraulic oil is arranged in the oil cylinder, described door closer housing is provided with the oil cylinder hydraulic adjusting device, described oil cylinder hydraulic adjusting device is an elastic container, be fixed on the housing of door closer, one side opening communicates with outside air, opposite side is connected with the hydraulic oil of oil cylinder (2), described elastic container is fixedly installed on the oil cylinder cover, opening and the air vent by oil cylinder cover communicate with the external world, described oil cylinder hydraulic adjusting device is by piston, back-moving spring is formed, and be arranged on the housing of door closer, the cavity of described piston one side communicates with the external world, the cavity of opposite side is connected with hydraulic oil, described piston (8) is equipped with piston bush (7), and described piston bush is fixedly installed on the oil cylinder cover, and a side cavity of piston (8) communicates with the external world by the air vent of oil cylinder cover; Described oil cylinder hydraulic adjusting device also can be sealing elastomer, and hollow, its medium are gas, and its external surface is connected with hydraulic oil.
Press the door closer of the utility model theme design, can be to because factors such as circumstance of temperature difference cause spill and leakage oil, or cause oil pocket cavity to occur and when causing door closer work noise big, the service behaviour instability, disadvantage such as fragile carries out limitedly overcoming, thereby reaches stable working, increases the service life.
The utility model has following accompanying drawing
Fig. 1 is the main sectional view of embodiment one
Fig. 2 is the main sectional view of embodiment two
Fig. 3 is the main sectional view of embodiment three
Accompanying drawing has been represented structure of the present utility model, further describes embodiment below in conjunction with accompanying drawing: comprise that door closer housing, working beam (1), oil cylinder (2), oil cylinder have hydraulic oil in (2), described door closer housing is provided with oil cylinder hydraulic adjusting device (3).
Embodiment one, described oil cylinder hydraulic adjusting device (3) is an elastic container (4), container material is an elastomeric material, certain retractility is arranged, this elastic container (4) is positioned at oil cylinder (2) lining, be fixedly installed on the oil cylinder cover (5), opening also communicates with the external world by the air vent (6) of oil cylinder cover (5).Another kind of way is established the hole in the housing proper site, in this hole elastic container is set, and this hole communicates with oil cylinder.During converted products, elastic container should have certain precompression, allows its release gradually then at work.
Embodiment two, described oil cylinder hydraulic adjusting device (3) is by piston bush (7), piston (8), back-moving spring (9) is formed, and be fixedly installed on the housing of oil cylinder (2), the cavity of described piston (8) one sides communicates with the external world by the air vent on the oil cylinder (2), the cavity of opposite side is connected with hydraulic oil, described back-moving spring (9) is positioned at piston bush (7) lining, one side contacts piston (8) of this back-moving spring, the housing of opposite side contact oil cylinder (2), described piston bush (7) is fixedly installed on the oil cylinder cover (5), opening also communicates with the external world by the air vent (6) of oil cylinder cover (5), described back-moving spring should have certain precompression, and piston bush (7) can be threaded with oil cylinder cover (5) and be equipped with sealing ring.
Embodiment three, and described oil cylinder hydraulic adjusting device (3) is a sealing elastomer, are positioned at oil cylinder (2) lining, and its medium of hollow is a gas, and gas mainly is to be convenient to compression, and same, the sealing elastic body should add certain precompression.
Adopt the foregoing description, the cavity that the utility model forms when temperature Change can both in time must can be treated to receive with storage when oil spilling expands in replenishing, and has guaranteed the normal steady operation of door closer, has prolonged application life.
Claims (6)
1, a kind of door closer comprises that door closer housing, working beam (1), oil cylinder (2), oil cylinder have hydraulic oil in (2), and it is characterized in that: described door closer housing is provided with oil cylinder hydraulic adjusting device (3).
2, a kind of door closer as claimed in claim 1, it is characterized in that: described oil cylinder hydraulic adjusting device (3) is an elastic container (4), be fixed on the housing of door closer, a side opening is connected with outside air, and opposite side is connected with the hydraulic oil of oil cylinder (2).
3, a kind of door closer as claimed in claim 2 is characterized in that: described elastic container (4) is fixedly installed on the oil cylinder cover (5), and opening also communicates with the external world by the air vent (6) of oil cylinder cover (5).
4, a kind of door closer as claimed in claim 1, it is characterized in that: described oil cylinder hydraulic adjusting device (3) is made up of piston (8), back-moving spring (9) and is arranged on the housing of door closer, the cavity of described piston (8) one sides communicates with the external world, and the cavity of opposite side is connected with hydraulic oil.
5, a kind of door closer as claimed in claim 4, it is characterized in that: described piston (8) is equipped with piston bush (7), described piston bush (7) is fixedly installed on the oil cylinder cover (5), and a side cavity of piston (8) communicates with the external world by the air vent (6) of oil cylinder cover (5).
6, a kind of door closer as claimed in claim 1 is characterized in that: described oil cylinder hydraulic adjusting device (3) is a sealing elastomer, hollow, and its medium is a gas, its external surface is connected with hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98244503 CN2378491Y (en) | 1998-09-25 | 1998-09-25 | Door-closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98244503 CN2378491Y (en) | 1998-09-25 | 1998-09-25 | Door-closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2378491Y true CN2378491Y (en) | 2000-05-17 |
Family
ID=33990597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98244503 Expired - Fee Related CN2378491Y (en) | 1998-09-25 | 1998-09-25 | Door-closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2378491Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942944A (en) * | 2010-09-09 | 2011-01-12 | 宁波市鄞州欧德意自动门有限公司 | Fluid damper and sliding door device using damper |
-
1998
- 1998-09-25 CN CN 98244503 patent/CN2378491Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942944A (en) * | 2010-09-09 | 2011-01-12 | 宁波市鄞州欧德意自动门有限公司 | Fluid damper and sliding door device using damper |
| CN101942944B (en) * | 2010-09-09 | 2013-11-06 | 宁波欧德意自动门有限公司 | Fluid damper and sliding door device using damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |