CN2355058Y - Automatic door closing buffer - Google Patents
Automatic door closing buffer Download PDFInfo
- Publication number
- CN2355058Y CN2355058Y CN 98238296 CN98238296U CN2355058Y CN 2355058 Y CN2355058 Y CN 2355058Y CN 98238296 CN98238296 CN 98238296 CN 98238296 U CN98238296 U CN 98238296U CN 2355058 Y CN2355058 Y CN 2355058Y
- Authority
- CN
- China
- Prior art keywords
- piston
- door
- connecting rod
- spring
- cylinder
- 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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- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The utility model relates to an automatic door closing buffer, composed of a cylinder, a spring, a piston, a draw rod, and a connecting rod. The piston is arranged in the cylinder, one end of the draw rod is fixed on the piston, and the other end is fixed at the outer part at the front end of the cylinder. The spring sleeve is arranged on the draw rod, the tail end of the cylinder is fixed with the connecting rod, and an air hole is arranged on the cylinder wall close to the connecting rod. the raw rod and the connecting rod are respectively fixed on a door and a door frame by a rotary shaft. When the for is opened, the piston compresses the spring; after the door is released, the spring tension pushes the piston. Because air displacement of the air hole is small, the piston and the draw rod drive the door to close in a slow speed. The utility model has the advantages that a sound can not generate at the time of automatically closing the door, and the door frame can be protected.
Description
The utility model belongs to mechanical field, is a kind of door check.
At present, the door check that domestic general family and office use is spring or rubber belt, and spring is commonly called as a bow, after people open the door push-and-pull, elastic recovering force by spring or rubber belt is closed door automatically, because the elasticity power is wayward, when elastic force was weak, door fitted badly, when elasticity is strong, the quick knocking door case of door-plate, sound is very big, and opposite house also has certain destruction.
The purpose of this utility model be to provide a kind of and can automatically door be closed tight, door closer that speed more slowly, does not produce sound again.
Solution of the present utility model is the piston of packing in a garden tube, the piston cylinder lever connecting rod, the pull bar other end passes from garden tube front end, be with spring on the pull bar, both ends of the spring be separately fixed on the piston and garden tube front inner wall on, the tail end of garden tube is fixed with connecting rod, has pore near on the garden barrel of tail end.By rotating shaft with pull bar and connecting rod be separately fixed at the door and doorframe on, when opening the door, pull bar drives piston and moves to garden tube front end, with length of spring compressed, after the people leaves, spring tension promotes piston and moves to garden tube tail end, door is closed in drive by pull bar, the air in the piston motion process in the tube of compression garden, and the garden tube can only be by the outside discharged air of pore, therefore the tube internal gas pressure is higher, spring reset low, the speed of closing the door is slow, after piston is crossed the pore position, gas can only be discharged from the slit between piston and the garden tube inwall, and the final stage speed that door is closed is more slowly steady.
Of the present utility model simple in structure, reliable working performance, the speed of closing door is slow, does not produce sound, can shield to door-plate and doorframe, and automatically door be closed tight.
Further below in conjunction with drawings and Examples to the utility model:
Fig. 1 is the utility model sectional view;
Fig. 2 is the utility model user mode figure.
The utility model is made of garden tube 1, spring 2, piston 3, pull bar 4 and connecting rod 6, piston 3 is in garden tube 1, pull bar 4 one ends are fixed on the piston 3, the other end is in the outside of garden tube 1 front end, spring 2 is enclosed within on the pull bar 4, two ends be separately fixed on the piston 3 and garden tube 1 front inner wall on, garden tube 1 tail end fixed connecting rod 6, garden tube 1 has pore 5 near on the barrel of connecting rod 6, garden tube 1 and piston 3 likeness in form inflator pumps.Can connecting rod 6 and pull bar 4 be contained in respectively on door 8 and the doorframe 9 by rotating shaft 7 during installation.
Claims (1)
1, a kind of low door check, it is characterized in that: it is made of garden tube 1, spring 2, piston 3, pull bar 4 and connecting rod 6, piston 3 is in garden tube 1, pull bar 4 one ends are fixed on the piston 3, the other end is in the outside of garden tube 1 front end, and spring 2 is enclosed within on the pull bar 4, two ends be separately fixed on the piston 3 and garden tube 1 front inner wall on, garden tube 1 tail end fixed connecting rod 6, garden tube 1 has pore 5 near on the barrel of connecting rod 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238296 CN2355058Y (en) | 1998-07-17 | 1998-07-17 | Automatic door closing buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238296 CN2355058Y (en) | 1998-07-17 | 1998-07-17 | Automatic door closing buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2355058Y true CN2355058Y (en) | 1999-12-22 |
Family
ID=33985921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98238296 Expired - Fee Related CN2355058Y (en) | 1998-07-17 | 1998-07-17 | Automatic door closing buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2355058Y (en) |
-
1998
- 1998-07-17 CN CN 98238296 patent/CN2355058Y/en not_active Expired - Fee Related
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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 |