CN2549130Y - Pneumatic automatic door shutter - Google Patents
Pneumatic automatic door shutter Download PDFInfo
- Publication number
- CN2549130Y CN2549130Y CN 02237237 CN02237237U CN2549130Y CN 2549130 Y CN2549130 Y CN 2549130Y CN 02237237 CN02237237 CN 02237237 CN 02237237 U CN02237237 U CN 02237237U CN 2549130 Y CN2549130 Y CN 2549130Y
- Authority
- CN
- China
- Prior art keywords
- air pressure
- automatic door
- piston
- drive link
- end cap
- 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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- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The utility model relates to an air pressure automatic door closing device which is mainly composed of a transmission rod, a base, a support and a main body composed of a cylinder body, a piston and a piston rod. The power and damping for automatic door closing are produced by the air pressure between the cylinder body working cavity and the damping cavity in opening or closing the door. The air pressure differences between the working cavity and the damping cavity and the directions of the air pressure are adjusted and varied through a ventilating hole on the piston to reach an excellent buffering effect. The automatic door closing device works stably and has the advantages of a small structure, handiness, a low cost, producing no pollution, avoiding affecting the working environment and being suitable for various occasions.
Description
Affiliated technical field
The utility model relates to a kind of air pressure automatic door closer.
Background technology
Existing automatic door closer generally all adopts fluid power system, provides operation power with the compression spring, is buffer medium with hydraulic oil, and the defective of this product is: (1) is because the viscosity with temperature of hydraulic oil changes poor work stability; (2) the hydraulic system noise is big, also can produce hydraulic oil and reveal, and influences working environment; (3) structure is big and heavy, the manufacturing cost height.
The utility model content
The purpose of this utility model provides a kind of air pressure automatic door closer, this door closer working stability, and structure is small and exquisite, light, and cost of production is low, and is pollution-free, do not influence working environment.
The technical solution of the utility model is: the air pressure automatic door closer comprises main body, drive link, base and carriage, main body comprises that two ends, the left and right sides have the cylinder body of end cap, be dynamically connected with the inner surface of cylinder block sealed sliding and (refer to that both seal and the connected mode that can slide relatively mutually, down together) piston and piston rod, piston rod passes the left end cap of cylinder body, one end is fixedly connected with piston in cylinder chamber, the other end connects base outside cylinder chamber, drive link is bending shape, one end is connected with the cylinder body right end cap, the other end has sliding axle, sliding axle is inserted on the chute of carriage, and base is provided with female threaded shaft, and female threaded shaft is through on the axis hole of drive link bending part.Its operating principle is: the piston that is positioned at cylinder chamber is divided into the working chamber on right side and the damping cavity in left side with cylinder chamber, drive link can rotate around female threaded shaft, when drive link rotates, the cylinder body that drive is attached thereto moves relative to piston and piston rod, change the relative position of piston in cylinder chamber, the size that makes working chamber and damping cavity simultaneously the equivalent inverse change (part that working chamber increases equals the part that damping cavity reduces, otherwise it is easily right), base and carriage are installed in respectively on doorframe and the door leaf during use, carriage is with door leaf motion (being positioned on the door leaf with carriage is example) when opening the door, driving drive link rotates around female threaded shaft, the relative piston of cylinder body moves to left, working chamber dwindles, intracavity gas pressure increases, it is big that damping cavity becomes, intracavity gas pressure diminishes, external force after opening the door on the door leaf disappears, under the effect of gas pressure intensity difference between working chamber and damping cavity, cylinder body moves to right, driving door leaf by drive link and carriage closes, for suitably reducing or regulate the draught head of working chamber and damping cavity, make the action of closing the door softer, a part of gas in the working chamber can flow to damping cavity by the air vent on the piston when opening the door, at closing time with close the reverse draught head rely on door leaf inertia to produce the behind the door working chamber that fails to be convened for lack of a quorum again, suitably regulate the size of air vent, just can obtain a satisfied speed of closing.
Because the utility model relies on required power and the damping of baric systerm generation work, make operating characteristic not be subjected to the influence of variation of ambient temperature, the good stability of system substantially, noise is little, does not have oil and reveals, and reduced volume, simplify the structure, lowered cost of production.
Description of drawings
Fig. 1 is front view of the present utility model (closing under the state);
Fig. 2 is with the corresponding vertical view of the present utility model of Fig. 1;
Fig. 3 is the connection diagram of the utility model moving component;
Fig. 4 is structure of piston figure;
Fig. 5 is the structure chart of end cap.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the air pressure automatic door closer comprises main body 1, drive link 2, base 4 and carriage 5, main body 1 comprises that two ends, the left and right sides have the cylinder body 8 of end cap, the piston 9 and the piston rod 10 that are dynamically connected with cylinder body 8 inner surface sealed sliding, piston rod 10 passes the left end cap 8.1 of cylinder body 8, one end is fixedly connected with piston 9 in cylinder chamber, the other end connects base 4 outside cylinder chamber, drive link 2 is bending shape, one end is connected with cylinder body right end cap 8.2, the other end has sliding axle 6, sliding axle 6 is inserted on the chute 7 of carriage 5, and base 4 is provided with female threaded shaft 3, and female threaded shaft 3 is through on the axis hole of drive link 2 bending parts.
As shown in Figure 3, described piston rod 10 can be rotationally connected (being that both can relatively rotate around specific axle, down together) with the connected mode of base 4, and drive link 2 can also be to be rotationally connected with the connected mode of main body right end cap 8.2.
As shown in Figure 3, described drive link 2 can be by forming at fixedly connected flat bar 2.1 of described bending part and binaural connector 2.2.
As shown in Figure 4, described piston 9 can be provided with radial hole 11 and axial hole 12, and Kong Shangke establishes one way valve, and these holes are used as air vent, closes a duty with improvement and adjusting.
As shown in Figure 5, can be provided with aerating part 13 on the described end cap, be used for the inflation of working chamber and damping cavity.
It only is for the facility on the character express that this manual and claims use " left side ", " right side " statement direction, does not constitute the restriction to actual direction, and described direction is consistent with the left and right directions in the accompanying drawing.
Claims (5)
1. air pressure automatic door closer, it is characterized in that comprising main body, drive link, base and carriage, main body comprises piston and the piston rod that two ends have the cylinder body of end cap, are dynamically connected with the inner surface of cylinder block sealed sliding, piston rod passes the left end cap of cylinder body, one end is fixedly connected with piston in cylinder chamber, the other end connects base outside cylinder chamber, drive link is bending shape, one end is connected with the cylinder body right end cap, the other end is provided with sliding axle, sliding axle is inserted on the chute of carriage, and base is provided with female threaded shaft, and female threaded shaft is through on the axis hole of drive link bending part.
2. air pressure automatic door closer as claimed in claim 1 is characterized in that described piston rod is to be rotationally connected with the connected mode of base, and drive link also is rotationally connected with the connected mode of main body right end cap.
3. air pressure automatic door closer as claimed in claim 1 is characterized in that described drive link is by forming at described bending part fixedly connected flat bar and binaural connector.
4. air pressure automatic door closer as claimed in claim 1 is characterized in that described piston is provided with radial hole and axial hole, the Kong Shangshe one way valve.
5. air pressure automatic door closer as claimed in claim 1 is characterized in that described end cap is provided with the aerating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02237237 CN2549130Y (en) | 2002-06-06 | 2002-06-06 | Pneumatic automatic door shutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02237237 CN2549130Y (en) | 2002-06-06 | 2002-06-06 | Pneumatic automatic door shutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2549130Y true CN2549130Y (en) | 2003-05-07 |
Family
ID=33711276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02237237 Expired - Fee Related CN2549130Y (en) | 2002-06-06 | 2002-06-06 | Pneumatic automatic door shutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2549130Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422760A (en) * | 2012-05-18 | 2013-12-04 | 坂口俊 | Sliding door pulling and buffering device |
-
2002
- 2002-06-06 CN CN 02237237 patent/CN2549130Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422760A (en) * | 2012-05-18 | 2013-12-04 | 坂口俊 | Sliding door pulling and buffering device |
| CN103422760B (en) * | 2012-05-18 | 2016-09-14 | 坂口俊 | Move sliding door traction and buffer unit |
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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 |