CN204098676U - Novel pneumatic door closer - Google Patents
Novel pneumatic door closer Download PDFInfo
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- CN204098676U CN204098676U CN201420605265.XU CN201420605265U CN204098676U CN 204098676 U CN204098676 U CN 204098676U CN 201420605265 U CN201420605265 U CN 201420605265U CN 204098676 U CN204098676 U CN 204098676U
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- pull bar
- piston
- chamber
- door closer
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- 210000005241 right ventricle Anatomy 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 208000002925 dental caries Diseases 0.000 claims abstract description 3
- 210000003205 muscle Anatomy 0.000 claims description 8
- 238000000034 method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 239000000428 dust Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000013022 venting Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
Novel pneumatic door closer, comprises the cylinder block with container cavity, the piston be arranged in container cavity, can drag the pull bar that piston moves axially; Piston is divided into container cavity two cavitys and left chamber and chamber, right ventricle that axially separate, and left chamber is open type cavity and chamber, right ventricle is relative closure cavity, and the end in chamber, right ventricle is provided with throttling arrangement; Piston comprises piston main body and is arranged on piston main body outer circumferential side and the sealing device that can be slidably matched with the inside wall of container cavity, and the head end of pull bar to extend in left chamber and connects piston main body, and the tail end of pull bar extends from left chamber; Piston main body is also provided with shirt rim portion, and shirt rim portion axially extends out and is fitted on pull bar from piston main body, is provided with the detent mechanism adopting male-female engagement location structure between shirt rim portion and pull bar.For this reason, by shirt rim portion, pull bar and piston be stably integrally connected thus be not easy to mutually come off and affect the using function of door closer.
Description
Technical field
The present invention relates to a kind of door closer, particularly a kind of novel air-pressure type door-dosing device.
Background technology
Door closer is mounted in a kind of resetting means that door leaf makes door leaf can automatically close after unlatching.The object arranging door closer is to realize the control to door closing procedure, and the various functional parameters of door closing procedure are regulated according to human needs.In addition, use the meaning of door closer to be not only door automatically to close, doorframe and door body can also be protected steadily to close.
Door closer is generally divided into air-pressure type door-dosing device and hydraulic door closer.The structure of common air-pressure type door-dosing device is CN00239985.7 in the patent No., also has disclosure in the Chinese utility model patent that name is called " air-pressure type door-dosing device ".The door closer that above-mentioned patent CN00239985.7 discloses, comprises cavity 1, is positioned at the pull bar 2 of cavity 1, be connected to the piston sheet 3 on described pull bar 2.Have installation end 11 in described cavity 1 front portion, installation end 11 is provided with installing hole 5, cavity 1 inner chamber front end is disposed with through hole 7, screwed hole 71 and the screw thread head bore 73 that can be communicated with interior or exterior space, is also provided with foramen alare 72 at the edge of screwed hole 71.The threaded portion of described screw 8 is screwed in described screwed hole 71, when rotating described screw 8 and making it move outward, be not communicated with described foramen alare 72 volume increasing venthole with screw hole 71 part that described screw 8 spins, adjust the volume that namely described screw 8 can reduce described venthole in the other direction, like this, adjust tolerance by screw 8 with coordinating of screwed hole 71, thus make the door closing speed of door closer adjustable.
Summary of the invention
For the Pneumatic brake for door that above-mentioned patent CN00239985.7 discloses, we are as can be seen from the accompanying drawing of above-mentioned patent CN00239985.7, the head of described pull bar 2 is provided with positioning boss for locating described piston sheet 3, but when pulling force is excessive, described piston sheet 3 is very easy to the disabler that the described pull bar 2 of disengaging causes door closer.Syndeton between described pull bar 2 and described piston sheet 3 is also unreliable.
Secondly, we also find that the door closer of above-mentioned patent CN00239985.7 also exists a drawback, and the key adjusting tolerance is the length that spins of the described screw 8 of adjustment and described screw hole 71.And in order to screw 8 can be adjusted, often need to use special tool to control the adjustment of described screw 8.And door closer is generally mounted in the top of door leaf and overhead has certain height, operating personnel need to use ascending tool and lift up one's head the head of special instrument and screw 8 to match and adjust, and be also very easy to occur that special tool and described screw misplace in the process of adjustment, and described special tool and described screw 8 are matched in repetition of having to, operate very loaded down with trivial details.In addition, described screw 8 is directly in atmosphere exposed, steam in dust or air is easy to be deposited on described screw 8, makes described screw 8 occur corrosion problem and affect Adjustment effect, and dust also may be deposited in impact in described foramen alare 72, screw thread head bore 73 and to give vent to anger effect.
For the deficiencies in the prior art, one of goal of the invention of the present invention is intended to improve the syndeton between described pull bar and described piston, enables them reliably connect; In addition, we also improve the barometric control unit of described door closer, and like this, the adjustment being not only convenient to air pressure well can also be protected the adjusting screw(rod) of described adjusting device.
For this reason, the present invention proposes Novel pneumatic door closer, comprises the cylinder block with container cavity, the piston be arranged in described container cavity, can drag the pull bar that described piston moves axially; Wherein, described piston is divided into described container cavity two cavitys and left chamber and chamber, right ventricle that axially separate, and described left chamber is open type cavity and chamber, described right ventricle is relative closure cavity, and the end in chamber, described right ventricle is provided with throttling arrangement; Described piston comprises piston main body and is arranged on described piston main body outer circumferential side and the sealing device that can be slidably matched with the inside wall of described container cavity, the head end of described pull bar to extend in described left chamber and connects described piston main body, and the tail end of described pull bar extends from described left chamber; It is characterized in that, described piston main body is also provided with shirt rim portion, described shirt rim portion axially extends out and is fitted on described pull bar from described piston main body, is provided with the detent mechanism adopting male-female engagement location structure between described shirt rim portion and described pull bar.
Wherein, described piston is one of critical function part of described door closer, can move axially in described container cavity, described piston is divided into left chamber and the chamber, right ventricle of opposing seal in the axial direction described container cavity, described left chamber and chamber, right ventricle are in the axial direction with the cavity of orientation relative between them name, and their volume size changes with the movement of described piston, when the volume of described left chamber increases, the volume in chamber, described right ventricle then reduces, vice versa, and namely the volume in described left chamber and chamber, right ventricle is shifting relation.And, also two completely isolated separate space are needed not to be between described left chamber and chamber, right ventricle, they can realize the connection of part tolerance under given conditions by described piston portion, need not to be structure but the structure of opposing seal that definitely isolation is closed between them for this reason.
Wherein, chamber, described right ventricle is relative closure cavity, refers to the intercommunication can carrying out air capacity between chamber, described right ventricle and surrounding space conditionally.Wherein at the described throttling arrangement that the end in chamber, described right ventricle is arranged, exactly in order to regulate the tolerance in turnover chamber, described right ventricle.
In addition, in order to pull described pull bar toward when moving left opening door leaf, described door leaf can be opened swimmingly, and described left chamber is set to open type cavity, also namely described piston left and right mobile time, the air in described left chamber can not pass in and out with substantially not obstructed.
Secondly, described piston comprises piston main body, and described piston main body is the main skeleton part of described piston, forms the main division body separating described container cavity.Described piston also comprises sealing device, and described sealing device is arranged on described piston main body outer circumferential side and slides with described piston main body and be slidably matched with the inside wall of described container cavity.
Wherein, described pull bar is the component in elongated rod shape, and we are head end the one end extend in described left chamber, and to stretch out from one end of described left chamber be tail end.The driving mechanism that can drag described piston movement is not only by described pull bar, still described door closer can be connected to the bindiny mechanism on door leaf.Like this, described pull bar couples together formation interaction relation door leaf and described piston.Described piston can be dragged by described pull bar when door leaf moves to move, otherwise, when described piston moves, also drive described door leaf to move by described pull bar conversely.
Wherein, described throttling arrangement can be arranged on chamber, described right ventricle end roof on or be arranged in the end sidewalls in chamber, described right ventricle.When close door leaf and promote described piston move toward the right time, the volume in chamber, described right ventricle reduces and air pressure increases, described right ventricle chamber air can be discharged in free surrounding space by described throttling arrangement, and then control by described throttling arrangement the speed that described piston moves right, and then reasonably can control the closing speed of door leaf; And when opening door leaf, extraneous gas also can enter in chamber, described right ventricle by described throttling arrangement, and then control by described throttling arrangement the speed that described piston is moved to the left, and then reasonably can control the speed opened of door leaf.
In the process of closing the door or opening the door, described pull bar and described piston all need to keep interaction relation, if described pull bar and described piston depart from mutually, the function of described door closer will lose efficacy, reliably be connected to make to be formed between described pull bar with described piston, described piston also comprises shirt rim portion.Described shirt rim portion to be arranged on described piston main body and can to the left axis of orientation to extend out or axis of orientation, to extending out and being fitted on described pull bar, is provided with the detent mechanism adopting male-female engagement location structure between described shirt rim portion and described pull bar to the right.Described detent mechanism coordinates by spill positioning body and convex positioning body the mechanism carrying out shaping, such as described spill positioning body can be arranged on the positioning boss outside described pull bar, and described convex positioning body can be the inner side detent being arranged on main part, when described rod head extend in described piston main body, described positioning boss is locking in described detent thus described the axis of the piston to navigating on described pull bar; Described detent mechanism can also be made up of the detent be arranged on outside described pull bar and the inner side positioning boss being arranged on piston main body, reaches identical technique effect equally.According to technique scheme, compared with prior art, beneficial effect of the present invention is: by described shirt rim portion, described pull bar and piston are stably integrally connected, thus is not easy to mutually come off and affects the using function of described door closer.
Wherein, can be integrated structure between described shirt rim portion and described piston main body, also can be the structure removably linked together.
Further technical scheme is, is also provided with to allow the back-moving spring of described piston reset in described left chamber or chamber, right ventricle.
Wherein, described back-moving spring can be arranged in described left chamber and to be set on described pull bar thus to locate described back-moving spring, can promote described piston and reset toward moving right or draw described piston and be moved to the left; Or described back-moving spring is arranged in chamber, described right ventricle, described piston can be pulled to reset toward moving right or promote described piston and to be moved to the left reset.
And in order to strengthen the connective stability between described pull bar and described piston further, further technical scheme can also be, outside the portion of described shirt rim, be also provided with anti-dropping device, described anti-dropping device links closely at least part of described detent mechanism.
Wherein, described anti-dropping device is the safety component effectively preventing described detent mechanism to lose efficacy, namely prevent from interacting in the process of described pull bar and piston movement, and make that described shirt rim portion is stressed opens and then make described convex positioning body depart from described spill positioning body, thus lose the positioning action between described pull bar and described piston.And in order to make described anti-dropping device link closely at least part of described detent mechanism, described anti-dropping device can be integrally provided in region corresponding to described detent mechanism or subregion, such as, described anti-dropping device is tubular and is threaded connection the periphery the region be positioned at corresponding to described detent mechanism or subregion that are fitted in described shirt rim portion.Or further technical scheme can also be, the flange that described anti-dropping device is lid and has top and extended out by described top, described flange links closely at least part of described detent mechanism.Like this, described flange is arranged on region corresponding to described detent mechanism or subregion thus at least part of described detent mechanism and prevent it to lose efficacy of can linking closely.Now, in order to locate described anti-dropping device, further technical scheme can also be, the top of described anti-dropping device is positioned on described pull bar.Like this, the obstruction that described anti-dropping device can be made to become described pull bar depart from described piston, thus ensure that described anti-dropping device is arranged on the outside in described shirt rim portion all the time.
Further technical scheme can also be, the concavo-convex muscle that the inner side of described flange is provided with.
Wherein, described concavo-convex muscle is the concavo-convex tectosome be oppositely arranged, self-assembling formation depression muscle between adjacent raised ribs, self-assembling formation raised ribs between adjacent depression muscle.Like this, the inner side of described flange forms obvious concaveconvex structure, by detent mechanism described in the further fastening of described concaveconvex structure, ensures the permanently effective cooperation of the concavo-convex location structure of described detent mechanism.
And in order to be convenient to regulate the air pressure size in chamber, described right ventricle, further technical scheme can also be, described throttling arrangement comprises throttle orifice and the adjusting device of the end being arranged on chamber, described right ventricle, described adjusting device comprises adjusting screw(rod) and adjusting knob, described adjusting knob is fixedly connected on the cephalic par of described adjusting screw(rod), the tail end of described adjusting screw(rod) is screwed in described throttle orifice, and the external diameter of described adjusting knob is greater than the external diameter of described adjusting screw(rod).
Wherein, described throttle orifice comprises the air discharge duct of the female screwed hole of tool and axial through described screwed hole, and the part that described screwed hole does not spin with described adjusting screw(rod) tail end is communicated with air discharge duct and forms exhaust passage.When the tail end of described adjusting screw(rod) is screwed in the longest with the length that spins of described throttle orifice in described throttle orifice completely, the volume of described venting channels is minimum, and the resistance described pull bar and piston being moved to the generation that resets is also maximum; When described adjusting screw(rod) moves outward, the screwing length of described adjusting screw(rod) and described throttle orifice reduces, thus makes the volume of described venting channels become large, moves reset and produce resistance and also reduce described pull bar and piston.
Wherein, described adjusting screw(rod) and adjusting knob can be one-body molded by techniques such as quadric injection moulds, are integrally connected after can also manufacturing respectively by syndeton.Like this, the rotation of described adjusting knob can drive the rotation of described adjusting screw(rod) simultaneously.
Wherein, the external diameter of described adjusting knob is greater than the external diameter of described adjusting screw(rod), and like this, convenient operation personnel grip described adjusting knob and conveniently apply torsion to described adjusting knob.
In addition; described adjusting knob can also play the effect protecting described adjusting screw(rod); prevent the moisture of described adjusting screw(rod) directly and in dust or air and affect the result of use of described adjusting screw(rod), also can prevent dust accretions from affecting to the outlet side of described throttle orifice effect of giving vent to anger.
Further technical scheme can also be, the inner side of described adjusting knob is provided with the lug boss of multiple spaced layout; Described adjusting device also comprises the auxiliary adjustment part with elastic arm, and described auxiliary adjustment part is positioned on the lateral wall of described cylinder block, and the described lug boss inside described adjusting knob can be coupled on described elastic arm slidably.Described lug boss and described elasticity support arm relative sliding when described adjusting knob rotates, send suggestive slip sound like this.
Wherein, described auxiliary adjustment part is a kind of component independent of described adjusting knob, and it can be a kind of tubular elements, and the sidewall of described tubular elements is made up of multiple elastic arm; Or described auxiliary adjustment part can also be a kind of torsion spring with circle body fixed part and elasticity support arm.Mutually assist to sound by described lug boss and described elasticity support arm, operator can infer regulating effect by sound.
Further technical scheme can also be, the tail end in chamber, described right ventricle is provided with tail end cover, and described throttle orifice is arranged on described tail end cover; Described auxiliary adjustment part is positioned on described tail end cover.
Further technical scheme can also be, also includes the support that can be connected on door leaf or doorframe, the tail end of described pull bar be hook-shaped and can hook on the bracket; The alignment pin for preventing described pull bar from departing from described support is also provided with at the tail end of described pull bar.
Because the present invention has These characteristics and advantage, can be widely applied in air-pressure type door-dosing device for this reason.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of the Novel pneumatic door closer of application technical solution of the present invention;
Fig. 2 is the cross-sectional view of the Novel pneumatic door closer of application technical solution of the present invention;
Fig. 3 is the enlarged drawing of the a-quadrant in Fig. 2;
Fig. 4 is the enlarged drawing in the B region in Fig. 2, wherein in order to can the described screwed hole of clear display (492) and described air discharge duct (493), deletes the described adjusting screw(rod) of part (9);
Fig. 5 is the perspective view of adjusting device described in Fig. 1 (8);
Fig. 6 is the perspective view of anti-dropping device described in Fig. 1 (6);
Fig. 7 is the perspective view of the piston main body (51) of piston described in Fig. 1 (5);
Fig. 8 is the perspective view of the part of auxiliary adjustment described in Fig. 1 (7);
Fig. 9 is the cross-sectional view of the Novel pneumatic door closer of the another kind of embodiment of application technical solution of the present invention.
Detailed description of the invention
Be further described below in conjunction with the structure of accompanying drawing to the Novel pneumatic door closer of application technical solution of the present invention.
As depicted in figs. 1 and 2, a kind of Novel pneumatic door closer, its one end is connected to the other end on doorframe and is connected on door leaf thus the switching speed that can regulate door leaf.Comprise the cylinder block 1 with container cavity 13, the piston 5 be arranged in described container cavity 13, the pull bar 2 that described piston 5 moves axially can be dragged; Wherein, described piston 5 is divided into described container cavity 13 the left chamber 13a and chamber, right ventricle 13b that the cavity of two opposing seal and left and right axis separate, described left chamber 13a is open type cavity and described right ventricle chamber 13b is relative closure cavity, and the end of described right ventricle chamber 13b is provided with throttling arrangement; Described piston 5 comprises piston main body 51 and is arranged on described piston main body 51 outer circumferential side and the sealing device 47 that can be slidably matched with the inside wall of described container cavity 13, the head end 22 of described pull bar 2 to extend in described left chamber 13a and connects described piston main body 51, and the tail end 21 of described pull bar 2 extends from described left chamber 13a; It is characterized in that, described piston main body 51 is also provided with shirt rim portion 56, described shirt rim portion 56 axially extends out and is fitted on described pull bar 2 from described piston main body 51, is provided with the detent mechanism 10 adopting male-female engagement location structure between described shirt rim portion 56 and described pull bar 2.
Discuss technical solution of the present invention in detail below:
Embodiment one
As depicted in figs. 1 and 2, the Novel pneumatic door closer in the present embodiment comprises the cylinder block 1 with container cavity 13, the piston 5 be arranged in described container cavity 13, can drag the pull bar 2 of described piston 5 movement.The left chamber 13a that namely wherein said piston 5 divides right and left the cavity that described container cavity 13 is divided into two opposing seal and chamber, right ventricle 13b, in described left chamber 13a, be also provided with the back-moving spring 44 that described piston 5 can be allowed to reset, described back-moving spring 44 is set on described pull bar 2.Back-moving spring 44 described in the present embodiment adopts Compress Spring.Outer end cap 42 is covered with at the tail end of described left chamber 13a and the tail end 11 of described cylinder block 1, the inner side of described outer end cap 42 is provided with internal end cover 43, the top, one end of described back-moving spring 44 is pressed in internal end cover 43, other end top is pressed on described piston 5, described outer end cap 42 and internal end cover 43 are provided with air circulation through hole, thus make described left chamber 13a form open type cavity.Secondly bracing frame 41 is also provided with in the outside of the tail end 11 of described cylinder block 1.
The head end 22 of described pull bar 2 to extend in described left chamber 13a and connects described piston 5, the tail end 21 of described pull bar 2 in hook-shaped extend described left chamber 13a and be supported on after on support frame as described above 41 be hooked on support 45, described support 45 can be connected to (can certainly be doorframe) on door leaf, like this, described pull bar 2 couples together formation interaction relation door leaf and described piston 5.Described piston 5 can be dragged by described pull bar 2 when door leaf moves to move, otherwise, when described piston 5 moves, also drive described door leaf to move by described pull bar 2 conversely.In addition, the tail end 21 of described pull bar 2 is provided with through hole 21a, described through hole 21a is provided with alignment pin 46, described alignment pin 46 departs from described support 45 for preventing the tail end 21 of described pull bar 2.And described right ventricle chamber 13b is relative closure cavity, at the tail end of chamber, right ventricle 13b, be namely covered with tail end cover 49 in the head end portion 12 of described cylinder block 1.Described tail end cover 49 comprises matrix part 494 and location division 495, on the tail end that described matrix part 494 covers described right ventricle chamber 13b and riveted joint has fixed mount 48, described fixed mount 48 is positioned on body of wall by trip bolt, and on described location division 495, be provided with throttling arrangement, now described throttling arrangement is equivalent to be arranged on the end roof of chamber, right ventricle 13b.Certain about another kind of embodiment, the end roof that described throttling arrangement can also be arranged on described right ventricle chamber 13b is also feasible scheme.
As shown in Figure 3 and Figure 7, described piston 5 comprises piston main body 51 and is arranged on the sealing device 47 that also can be slidably matched with the inside wall of described container cavity 13 outside described piston main body 51, and sealing device 47 described in the present embodiment adopts O type silica gel ring.Described piston main body 51 is the main composition part of described piston 5 and forms the main division body separating described container cavity 13, and described piston main body 51 includes the left gas sheet 52 of ring-type, right gas sheet 53, and described right gas sheet 53 is provided with multiple air vent 54.And in order to reduce described left gas sheet 52, friction between right gas sheet 53 and described cylinder block 1 inside wall, described left gas sheet 52, between right gas sheet 53 and described cylinder block 1 inside wall, be reserved with small gap.In addition, described left gas sheet 52 and right gas sheet 53 interval arrange and form located space between which, and described O RunddichtringO to be limited in described located space and and described left gas sheet 52, to leave certain mobile space between right gas sheet 53.
When opening door leaf, door leaf (can certainly be doorframe) pulls described pull bar 2 by described support 45, again by described pull bar 2 drag piston 5 turn left side move time, owing to affording described cylinder block 1 inside wall, to its frictional force, delayed finally the leaning of appearance activity to be promoted by described and right gas sheet 53 and and to reserve gap between described left gas sheet 52 described sealing device 47 on described right gas sheet 53.Now, along with the movement of described pull bar 2 and piston 5, the volume of described left chamber 13a reduces gradually, and the volume of described right ventricle chamber 13b expands gradually, and the portion gas in described left chamber 13a is discharged in free surrounding space by the air circulation through hole in described outer end cap 42 and internal end cover 43; And another part gas in left chamber 13a can also enter in described right ventricle chamber 13b by the air-vent 54 on the gap between described left gas sheet 52 and described cylinder block 1 inside wall and described right gas sheet 53, now, the gas in free surrounding space also can enter into the common gas supplementing described right ventricle chamber 13b in described right ventricle chamber 13b by described throttling arrangement.For this reason, when opening door leaf, the elastic force that only need overcome described back-moving spring 44 makes it compress, and overcomes pressure differential between described left chamber 13a and chamber, right ventricle 13b and namely can open door leaf trippingly.And when pulling force is eliminated, described back-moving spring 44 opens to reset and promote piston 5 and moves right, then promote described pull bar 2 by described piston 5 and move to the right.Now, described sealing device 47 due to afford described cylinder block 1 inside wall to its frictional force the delayed gap finally leaned on described left gas sheet 52 described in shutoff between left gas sheet 52 and described cylinder block 1 inside wall of appearance activity, form opposing seal between described left chamber 13a and chamber, right ventricle 13b and the gas between them can not be circulated mutually.Along with the movement of described pull bar 2 and piston 5, the volume-diminished of described right ventricle chamber 13b, air pressure increases, in described right ventricle chamber 13b, air can be discharged into obstruction power in free surrounding space thus suitable to the mobile generation of described piston 5 under making described right ventricle chamber 13b remain on suitable atmospheric pressure state by described throttling arrangement, and then reasonably can control the closing speed of door leaf.
The connection location structure between described pull bar 2 and piston 5 will be discussed in detail below:
As shown in Figure 3, described piston 5 also comprises and being arranged on described piston main body 51 and the shirt rim portion 56 be fitted on described pull bar head end 22, one-body molded and axially extend out between described shirt rim portion 56 and described piston main body 51, between described shirt rim portion 56 and described pull bar head end 22, be provided with the one group of detent mechanism 10 adopting male-female engagement location structure.
Described detent mechanism 10 comprises mutually adaptive positioning boss 55 and detent 23, and described positioning boss 55 is arranged on the inner side in described shirt rim portion 56, and described detent 23 is arranged on outside described pull bar 2.When described rod head 22 extend in described piston main body 51 and described shirt rim portion 56, described positioning boss 55 is locking in described detent 23 thus described piston 5 axial location on described pull bar 2.Like this, can be firm between described piston 5 and described pull bar 2 connect, is not easy to mutually come off and affects the using function of described door closer.When pulling described pull bar 2 to move, described pull bar 2 can drive described piston 5 to move together; Such as, otherwise move at described piston 5, when described back-moving spring 44 promotes described piston 5 reset movement, described piston 5 also drives described pull bar 2 to move reset conversely.
Certain about another embodiment, the described positioning boss 55 included by described detent mechanism 10 and described detent 23 can also be exchanged and come to reach identical technique effect between described shirt rim portion 56 with described pull bar 2.
And in order to strengthen the connective stability between described pull bar 2 and described piston 5 further, further technical scheme is, outside described shirt rim portion 56, be also provided with anti-dropping device 6.As shown in Figure 3 and Figure 6, the flange 63 that described anti-dropping device 6 has top 62 in lid and extended out by described top 62, described flange 63 is arranged on the region outside described shirt rim portion 56 corresponding to described detent mechanism 10 thus detent mechanism 10 is stated in residence of can linking closely.Like this, described flange 63 can prevent described detent mechanism 10 to lose efficacy, namely prevent from interacting in the process of described pull bar 2 and piston 5 movement, and make the stressed positioning action of opening and then making described positioning boss 55 depart from described detent 23 and losing between described pull bar 2 and described piston 5 in described shirt rim portion 56.The inner side of described flange 63 arranges concavo-convex muscle, is namely provided with many raised ribs 64, self-assembling formation depression muscle 65 between two adjacent raised ribs 64.Described raised ribs 64 and depression muscle 65 make the inner side of described flange 63 form obvious concaveconvex structure, by detent mechanism 10 described in the further fastening of described concaveconvex structure, ensure the permanently effective cooperation of the concavo-convex location structure of described detent mechanism 10.In addition, in order to locate described anti-dropping device 6, be provided with in the head end portion 22 of described pull bar 2 in mushroom plug 24, the top 62 of described anti-dropping device 6 is provided with the positioning through hole 61 allowing the bar portion of described plug 24 pass.Like this, described positioning through hole 61 is passed in the bar portion of described plug 24 thus utilizes head that the top 62 of described anti-dropping device 6 is positioned at the head end position of described pull bar 2, described pull bar 2 can be made to form a fixed connection with described anti-dropping device 6, thus form the obstruction that described pull bar 2 departs from described piston 5, ensure that described anti-dropping device 5 is arranged on residence of linking closely outside described shirt rim portion 56 all the time and states detent mechanism 10.Certainly, according to above-mentioned technical scheme, described anti-dropping device 6 can also be the annular tightening system in pipe collar sample, in the case, the projection of one circle radial direction is preferably set at the end in described shirt rim portion 56, described pipe collar is positioned at the inner of described projection, limits described pipe collar like this make it not easily axially come off by described projection.
And in order to be convenient to the air pressure size regulating 13b in chamber, right ventricle, further technical scheme is, the throttle orifice 491 that described throttling arrangement comprises the end being arranged on described right ventricle chamber 13b and the adjusting device be arranged on described throttle orifice 491.Described adjusting device comprises adjusting screw(rod) 9 and adjusting knob 8, and described adjusting knob 8 is fixedly connected on the cephalic par 93 of described adjusting screw(rod) 9, and the tail end 92 of described adjusting screw(rod) 9 is screwed in described throttle orifice 491.
Wherein, described throttle orifice 491 is located on the location division 495 of described tail end cover 49, and be made up of the air discharge duct 493 of the female screwed hole of tool 492 and axial through described screwed hole 492, the part that described screwed hole 492 does not spin with the tail end 92 of described adjusting screw(rod) 9 is communicated with air discharge duct 493 and forms exhaust passage.When the tail end 92 of described adjusting screw(rod) 9 is screwed in the longest with the length that spins of described screwed hole 492 in described screwed hole 492 completely, the volume of described venting channels is minimum, and the resistance described pull bar 2 and piston 5 being moved to the generation that resets is also maximum; When described adjusting screw(rod) 9 moves outward, described adjusting screw(rod) 9 reduces with the screwing length of described screwed hole 492, thus makes the volume of described venting channels become large, moves reset and produce resistance and also reduce described pull bar 2 and piston 5.
Wherein, described adjusting screw(rod) 9 and adjusting knob 8 one-body molded by techniques such as quadric injection moulds, like this, the rotation of described adjusting knob 8 can drive described adjusting screw(rod) 9 to rotate simultaneously.Or being integrally connected by syndeton after described adjusting screw(rod) 9 and adjusting knob 8 can also manufacture respectively, is also the scheme that can go.
And grip described adjusting knob 8 for ease of operating personnel and conveniently torsion applied to described adjusting knob 8, the external diameter of described adjusting knob 8 is greater than the external diameter of described adjusting screw(rod) 9, preferably consistent with the external diameter of described tail end cover 49.Like this; described adjusting knob 8 can also play the effect protecting described adjusting screw(rod) 9; prevent the moisture of described adjusting screw(rod) 9 directly and in dust or air and affect the result of use of described adjusting screw(rod) 9, also can prevent dust accretions from affecting to the outlet side of described throttle orifice 491 effect of giving vent to anger.
In addition, the inner side of described adjusting knob 8 is provided with the lug boss 81 of multiple spaced layout.
As shown in Figure 4, the location division 495 of described tail end cover 49 is also provided with auxiliary adjustment part 7.Described auxiliary adjustment part 7 comprises inner side circle body 73 and outside circle body 74, and the top of described inner side circle body 73 and outside circle body 74 is integrally connected.Described location division 495 is provided with locating hole 494, and on the inner side circle body 73 of described auxiliary adjustment part 7, be provided with the positioning convex 71 with described locating hole 494 adaptation, described auxiliary adjustment part 7 by the cooperation stationary positioned of described positioning convex 71 and described locating hole 494 on described tail end cover 49.And the outside circle body 74 of described auxiliary adjustment part 7 is made up of multiple spaced elastic arm 72.Described elastic arm 72 comprises support arm 77 and is arranged on support arm 77 tail end toward the foot 75 of turning up.Wherein the elastic arm 72 of a pair symmetry also includes the salient point 76 being arranged on foot 75.The inner side that described elastic arm 72 extend into described adjusting knob 8 makes described salient point 76 can lean on described lug boss 81.When described adjusting knob 8 rotates, described lug boss 81 can push up the described salient point 76 of pressure and its corresponding elastic arm 72 is tilted, when then making salient point 76 described in the slippage of described lug boss 81 when described adjusting knob 8 continues to rotate, the described elastic arm 72 tilted resets and makes the described salient point 76 on it beat the inner side of described adjusting knob 8 and sound, like this, described lug boss 81 and the relative movement of described elasticity support arm 72 and sound, enable operator infer regulating effect by sound.And in order to prevent described adjusting knob 8 from departing from described door closer, the end of described adjusting knob 8 is provided with pair of projections 82, described boss 82 internal diameter is less than the external diameter of described foot 75, like this when described adjusting knob 8 is adjusted to outermost, described boss 82 can be resisted against in described foot 75 and prevent described adjusting knob 8 from departing from described door closer.
The second embodiment:
As shown in Figure 9, there is several distinctive points in present embodiment and the first embodiment: the first point, described back-moving spring 44 is not be arranged on described left chamber 13a but be arranged on described right ventricle chamber 13b, and adopt extension spring to replace Compress Spring, one end fastener of described back-moving spring 44 is on described piston 5, and other end top is pressed on described tail end cover 49.Second point, changes the setting position in described shirt rim portion 56, and described shirt rim portion 56 changes the right edge position being arranged on described piston main body 51 into, and arranges two groups of detent mechanisms (100,101) between described shirt rim portion 56 and described pull bar head end 22.Thirdly, described anti-dropping device 6 have employed another kind of equivalent frame mode: described anti-dropping device 6 is tubular and the subregion be threaded connection corresponding to the described detent mechanism 100 in the periphery being arranged on described shirt rim portion 56, thus the described detent mechanism 10 of the part that links closely.Although the second embodiment does not complete the described detent mechanism (100,101) that residence of linking closely has, as long as prevent described detent mechanism 100 or detent mechanism 101 to lose efficacy, just can prevent described pull bar 2 and described piston 5 from mutually departing from.For this reason, described anti-dropping device 6 link closely part described detent mechanism (100,101) identical technique effect can be reached equally.
Claims (10)
1. Novel pneumatic door closer, comprises the cylinder block with container cavity, the piston be arranged in described container cavity, can drag the pull bar that described piston moves axially; Wherein, described piston is divided into described container cavity two cavitys and left chamber and chamber, right ventricle that axially separate, and described left chamber is open type cavity and chamber, described right ventricle is relative closure cavity, and the end in chamber, described right ventricle is provided with throttling arrangement; Described piston comprises piston main body and is arranged on described piston main body outer circumferential side and the sealing device that can be slidably matched with the inside wall of described container cavity, the head end of described pull bar to extend in described left chamber and connects described piston main body, and the tail end of described pull bar extends from described left chamber; It is characterized in that, described piston main body is also provided with shirt rim portion, described shirt rim portion axially extends out and is fitted on described pull bar from described piston main body, is provided with the detent mechanism adopting male-female engagement location structure between described shirt rim portion and described pull bar.
2. Novel pneumatic door closer according to claim 1, is characterized in that, is also provided with to allow the back-moving spring of described piston reset in described left chamber or chamber, right ventricle.
3. Novel pneumatic door closer according to claim 1, is characterized in that, outside the portion of described shirt rim, be also provided with anti-dropping device, and described anti-dropping device links closely at least part of described detent mechanism.
4. Novel pneumatic door closer according to claim 3, is characterized in that, the flange that described anti-dropping device is lid and has top and extended out by described top, and described flange links closely at least part of described detent mechanism.
5. Novel pneumatic door closer according to claim 4, is characterized in that, the top of described anti-dropping device is positioned on described pull bar.
6. Novel pneumatic door closer according to claim 4, is characterized in that, the inner side of described flange is provided with concavo-convex muscle.
7., according to the arbitrary described Novel pneumatic door closer of claim 1 to 6, it is characterized in that, described throttling arrangement comprises throttle orifice and the adjusting device of the end being arranged on chamber, described right ventricle; Described adjusting device comprises adjusting screw(rod) and adjusting knob, and described adjusting knob is fixedly connected on the cephalic par of described adjusting screw(rod), and the tail end of described adjusting screw(rod) is screwed in described throttle orifice, and the external diameter of described adjusting knob is greater than the external diameter of described adjusting screw(rod).
8. Novel pneumatic door closer according to claim 7, is characterized in that, the inner side of described adjusting knob is provided with the lug boss of multiple spaced layout; Described adjusting device also comprises the auxiliary adjustment part with elastic arm, and described auxiliary adjustment part is positioned on the lateral wall of described cylinder block, and the described lug boss inside described adjusting knob can be coupled on described elastic arm slidably.
9. Novel pneumatic door closer according to claim 8, is characterized in that, the tail end in chamber, described right ventricle is provided with tail end cover, and described throttle orifice is arranged on described tail end cover; Described auxiliary adjustment part is positioned on described tail end cover.
10., according to the arbitrary described Novel pneumatic door closer of claim 1 to 6, it is characterized in that, also include the support that can be connected on door leaf or doorframe, the tail end of described pull bar be hook-shaped and can hook on the bracket; The alignment pin for preventing described pull bar from departing from described support is also provided with at the tail end of described pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420605265.XU CN204098676U (en) | 2014-10-20 | 2014-10-20 | Novel pneumatic door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420605265.XU CN204098676U (en) | 2014-10-20 | 2014-10-20 | Novel pneumatic door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204098676U true CN204098676U (en) | 2015-01-14 |
Family
ID=52267113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420605265.XU Expired - Lifetime CN204098676U (en) | 2014-10-20 | 2014-10-20 | Novel pneumatic door closer |
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| Country | Link |
|---|---|
| CN (1) | CN204098676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499284A (en) * | 2015-08-31 | 2017-03-15 | 赵芬 | Vapour-pressure type can self-positioning and self-closing hinge |
-
2014
- 2014-10-20 CN CN201420605265.XU patent/CN204098676U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499284A (en) * | 2015-08-31 | 2017-03-15 | 赵芬 | Vapour-pressure type can self-positioning and self-closing hinge |
| CN106499284B (en) * | 2015-08-31 | 2024-02-02 | 通冠(厦门)电子科技有限公司 | Pneumatic self-positioning and self-closing hinge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangdong Archie Hardware Co., Ltd. Assignor: Cao Guoji Contract record no.: 2015440000902 Denomination of utility model: Novel air pressure type door closer Granted publication date: 20150114 License type: Exclusive License Record date: 20151231 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |