CN1035863A - Multifunctional door closer - Google Patents

Abstract

The invention discloses a kind of hydraulic pressure location or hydraulic pressure random tool locking bit of utilizing, can locate or delay time and close the door closer of door automatically.The characteristics of this door closer are all location and mechanical lock device, all be arranged in the cylinder body, and location and mechanical pintle hook lock also all are to utilize hydraulic pressure or realize under the buffering of liquid.Therefore can positioning stablity reliable, can realize that again time-delay closes door automatically, and the left and right sides attractive in appearance door leaf is when using instead, navigation system need not to do any adjustment.

Description

Multifunctional door closer

The present invention relates to automatic door closing device.

Automatic door closer is a kind of device that door leaf slowly cuts out automatically, and it can avoid impact sound at closing time, overcomes the possibility that wind is opened the door, for life is provided convenience.But wish that in some occasion door leaf is in opening within a certain period of time, close door then automatically.For example: hospital ward or passageway doors.Require door leaf can be opened into 90 degree location when Hospital trolley for nursing is entered, after entering, do not need the people to go to close the door, cross the some minutes door leaf and just can close automatically.Conference room, office, house etc. for another example, Chang Yin have more personnel to come in and go out in short-term or the carrying article all also need to possess this specific character.In batches carry article, ventilation, labeled door etc. and resemble, then need the door leaf long period or inhuman push away the pass can all-the-time stable in opening.

Present door closer generally only possesses and closes a performance automatically, although also occurred door closer, performance and imperfection that minority can be located in recent years.As the outward appearance that makes some difference, some has noise, and orientable scope is little, (that is: can only can locate on a bit in after the unlatching certain.) up to now, having simultaneously time-delay close a function and can the long period location and inhuman try hard to recommend the pass can all-the-time stable in the door closer of opening beyond example still.

The purpose of this invention is to provide a kind of door leaf unlatching scope automatic slowly in 0～85 degree that makes and close door, door is closed in 85～95 degree time-delays automatically (does not need the people to operate behind the some minutes of location, door leaf cuts out automatically) 95 degree-(the concrete time will decide on machining accuracy near equal energy long period location on any point in the scope of maximum opening angle, but at least can be more than one hour), to maximum open the back door leaf can be in non-artificial push away the pass can all-the-time stable at the door closer of opening.(above-described various angles are to change and to adjust when mounted).

The present invention realizes like this, lay a combinaing valve body (this combinaing valve body is made up of an one way valve and a pressure limiting valve) other end at an end of the piston bolt of door closer and be processed into cone, lay simultaneously a tapered sleeve on cylinder body, an amount that can be free to slide is left in tapered sleeve front and back in oil cylinder.On the cylinder body of the piston bolt sealing anchor ring in the time of will dividing in addition a main spill port in other two spill ports to be transverse in door leaf to be in 85 degree openings and the relevant position of cylinder body, another secondary spill port is through on the cylinder body near this relevant position, therefore be in or during greater than this position, main spill port is cut off when door leaf.The tension force of spring is propped up by the fluid of pressurized, and this moment, door leaf was in positioning states substantially.But the secondary spill port of this moment also is not cut off, and therefore as long as suitably adjust the leakage rate of secondary spill port, can obtain the concrete delay time that door is closed in required time-delay.As need long period location,, treat that the sealing anchor ring of piston also just covers secondary spill port fully and can realize as long as door leaf is continued out greatly.Determine by concrete machining accuracy, generally can be set at four hours the concrete positioning time of this grade.If require to close immediately door, only need door leaf is exerted oneself slightly, oil pressure is improved greater than spring tension, just oil is back to a side of spring cavity by combinaing valve body.Along with the past opposite side shifting of spring cavity of backflow piston bolt sealing anchor ring of liquid, oil pressure descends after moving past spill port, and spring force just can make door leaf cut out.Push away and continue out greatly after the pass only needs can locate all the time the time door leaf realized the hydraulic pressure location when needs are non-artificial, make the piston bolt promote tapered sleeve and retreat, the piston bolt is embedded in the tapered sleeve and locks when tapered sleeve retreats to the bottom place, has so far realized long-time location.Equally also only need push hard pass door leaf piston bolt when needing to remove the location a little and be with tapered sleeve to move forward, to discharge the air of front end, purpose is for prevent that spring and noise from appearring in the moment that cone withdraws from from tapered sleeve.When tapered sleeve slides to oil cylinder boss (12) when locating, the piston bolt promptly withdraws from from tapered sleeve.Same after the sealing anchor ring of piston slips over spill port door leaf recovered the function of closing automatically again.

Because the conversion of the various functions that the present invention is designed all is in oil cylinder, and the location of being realized all is to utilize to carry out under the buffering of liquid, therefore according to the door closer of configuration of the present invention except that having the repertoire that general door closer has, it is reliable also to have the location, (can open to maximum but orientation range is wide from 90 degree, the maximum unlatching generally is at 150 degree～160 degree, also can arrive 180 degree but look the installation situation difference) be consistent with the size of removing the required thrust in location at place, any location.Door is closed in time-delay automatically, life-span length, noiselessness, tangible advantage such as simple, attractive in appearance.

Concrete structure of the present invention is by shown in the accompanying drawing 1, and behavior in service is by shown in the accompanying drawing 2.Inside when realizing difference in functionality part work of transformation situation in addition now contrasts accompanying drawing 1,2,3,4 and is illustrated with embodiment by shown in Fig. 3,4:

One. automatic slowly closes door.The door leaf that will be in closed condition by the people promotes toward opening direction, and the fulcrum on the doorframe (18) through connecting rod (19) linkage gear 1..By gear 1. drive piston 3. compress spring 4. oil pocket oil 5. 6. flow into oil pocket 7. by the valve body in the valve body group, 4. compressed spring begins to discharge tension force after the people leaves, thereby promotion activity gland is 3. toward oil pocket direction interlock 7., but because 6. valve body is one way valve, so former oil circuit is cut off, this moment pressurized fluid can only from oil return hand-hole (20) through major and minor spill port 9., (11) and oil return portal (21) enter oil pocket 5., the flow restriction of bolt (22) realizes that with this automatic slowly closes door because this oil circuit is adjusted.(shown in Figure 1 both had been this state, and Fig. 5 is that amplify the part of this state)

Two. the time-delay automatic slowly closes door.Door leaf is pushed into greater than behind 85 degree, (during also visual installation selected this angle as, 85 degree, 90 degree, 95 degree or 100 degree etc.) 8. 9. main spill port covered by the sealing anchor ring on the piston bolt fully, the fluid that (shown in Figure 3 both had been this situation) spring tension force 4. is obstructed props up, this moment, door leaf was in positioning states substantially, but the still oil return on a small quantity of secondary spill port (11) of this moment, the size of recirculating oil quantity (both delay times) is determined by adjusting time control bolt (17), slow spill and leakage along with secondary spill port (11), 8. the sealing anchor ring that 3. the piston bolt is gone up moves to oil pocket direction 7., when the sealing anchor ring 8. move past fully main spill port 9. the time oil pocket fluid 7. through spill port 9. flow into oil pocket 5. spring 4. begin to discharge tension force, from and recovered to close automatically door.

Three. the long period location.As long as door leaf is continued out greatly, treat that 8. the sealing anchor ring that 3. the piston bolt is gone up also covers secondary oilhole (11).(shown in Figure 4 both had been this situation), oil pocket this moment oil pole 7. in a small amount since the piston bolt 3. and have no other way out outward this moment door leaf of the spill and leakage that quality of fit caused of cylinder body (23) be stabilized in opening (this anti-spill and leakage required precision generally be set at can stablize four hours just enough) by the long period.

Only need when need removing the location door pushed away and close to less than having recovered to close automatically door again behind the certain angle (can determine when mounted this angle as: 85 degree, 90 degree or 95 are spent etc.).Because pushing away oil pocket oil 7. when closing is subjected to through the 1. pressure that 3. transmits of piston of connecting rod (19) gear, when oil pressure during greater than 4. tension force of spring, oil just by the valve body in the valve body group 10. the end face of cushion rubber be back to oil pocket 5. thereupon the joint ring 3. gone up of piston bolt move towards oil pocket direction 7., when shifting out the 9. oil pressure reduction of main spill port, 4. spring begins to discharge tension force, automatically it is closed thereby promote door leaf.

Four, remove the people for outside the Pass pushing away, and can be in the location all the time.Only need push door leaf to maximum the unlatching, this moment the piston bolt 3. to oil pocket 5. direction move, when arriving at terminal point, the cone on the piston bolt (13) promptly is embedded into tapered sleeve (14) and has promptly realized removing the people thus for being in positioning states outside the Pass pushing away all the time.The method of removing the location and process substantially with the 3rd described be the same.

Claims (3)

1, a kind of by metal shell, piston bolt 3., spring 4., gear 1. with the piston bolt on the door closer formed of the tooth bar that is provided with, it is characterized in that:

A. along with door leaf is opened, the piston bolt is in certain position closing volume hole and realizes the location

B. utilizing door leaf to close backhaul thrust improves oil pocket pressure and backs down pressure limiting valve and realize removing the location.

2, door closer as claimed in claim 1 is characterized in that: spill port has at least two dredge oil amounts of paying spill port (11) by control to realize that time-delay closes door automatically.

3, as claim 1 and 2 described door closers, it is characterized in that: an end of piston is cone (13), and itself and tapered sleeve (14) can lock mutually, and tapered sleeve (14) is to leave certain end play movingly and with the cylinder body boss with cylinder body.

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