CN109723308A - An automatic pressure relief door closer - Google Patents
An automatic pressure relief door closer Download PDFInfo
- Publication number
- CN109723308A CN109723308A CN201910114267.6A CN201910114267A CN109723308A CN 109723308 A CN109723308 A CN 109723308A CN 201910114267 A CN201910114267 A CN 201910114267A CN 109723308 A CN109723308 A CN 109723308A
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- China
- Prior art keywords
- pressure relief
- cavity
- inner cavity
- pressure
- door closer
- 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.)
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 18
- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
本发明公开了一种自动泄压闭门器，包括具有内腔的壳体、能够在内腔中做水平直线运动的活塞体、用于驱动活塞体运动的传动机构，内腔中充满液压油，活塞体将内腔分为第一腔体和第二腔体，壳体内还具有一泄压腔，泄压腔内滑动配合地设置有泄压活塞，泄压活塞将泄压腔分为第一泄压腔和第二泄压腔，第一泄压腔的与内腔连通且充满液压油，第二泄压腔与外界连通。当本发明的自动泄压闭门器的内腔压力升高时，内腔中的液压油流入泄压腔中，当内腔压力降低时，泄压腔中的液压油流入内腔中，因此内腔中的压力保持相对平衡，防止闭门器因内腔压力变化而产生的损坏，且该闭门器的结构较为简单、成本较低。
The invention discloses an automatic pressure relief door closer, comprising a casing with an inner cavity, a piston body capable of horizontal linear motion in the inner cavity, and a transmission mechanism for driving the movement of the piston body, and the inner cavity is filled with hydraulic oil , the piston body divides the inner cavity into a first cavity and a second cavity, and there is also a pressure relief cavity in the casing. The pressure relief cavity is provided with a pressure relief piston in a sliding fit, and the pressure relief piston divides the pressure relief cavity into a second cavity. A pressure relief chamber and a second pressure relief chamber, the first pressure relief chamber communicates with the inner chamber and is filled with hydraulic oil, and the second pressure relief chamber communicates with the outside world. When the inner cavity pressure of the automatic pressure relief door closer of the present invention increases, the hydraulic oil in the inner cavity flows into the pressure relief cavity, and when the inner cavity pressure decreases, the hydraulic oil in the pressure relief cavity flows into the inner cavity, so The pressure in the inner cavity is kept relatively balanced, so that the door closer is prevented from being damaged due to the change of the inner cavity pressure, and the structure of the door closer is relatively simple and the cost is low.
Description
Technical field
The present invention relates to a kind of releasing pressure automatically door closers.
Background technique
It is filled with hydraulic oil in hydraulic door closer, by the throttling to hydraulic oil, can be realized damping when switch gate
Effect achievees the purpose that door leaf smooth motion.When opening the door, the pressure of hydraulic oil increases suddenly in door closer, and solution causes pair
The damage of door closer shell, causes hydraulic fluid leak.Moreover, because the variation of temperature throughout the year, hydraulic oil in door closer
Volume is also changing therewith, causes hydraulic fluctuation, is easy to happen the phenomenon of leakage.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of releasing pressure automatically door closer.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of releasing pressure automatically door closer, including with inner cavity
Shell, horizontal rectilinear motion can be done in the inner cavity piston body, the driver for driving piston body movement
Structure, hydraulic oil is full of in the inner cavity, and the inner cavity is divided into the first cavity and the second cavity, the piston body by the piston body
On be provided with and be only capable of the check valve flowed into the first cavity from the second cavity, the piston body and the shell for controlling hydraulic oil
It is additionally provided with one between the one end of body and is used to provide the described the elastic component that piston body is moved towards first cavity direction, it is described
Also there is a pressure-releasing chamber in shell, pressure release piston is provided in the pressure-releasing chamber with being slidably matched, the pressure release piston will be described
Pressure-releasing chamber is divided into the first pressure-releasing chamber and the second pressure-releasing chamber, and first pressure-releasing chamber is connected to and full of described hydraulic with the inner cavity
Oil, second pressure-releasing chamber are in communication with the outside.
Preferably, the shell offer connection first pressure-releasing chamber and the first through hole of the inner cavity, be connected to described in
Second pressure-releasing chamber and the second extraneous through-hole, the axle center of the axial line of the first through hole, the axial line of the second through-hole, pressure-releasing chamber
Line is conllinear.
It is further preferred that the cross section of the first through hole and the cross section of second through-hole are both less than the pressure release
The cross section of piston.
It is further preferred that one end that second pressure-releasing chamber is in communication with the outside is provided with internal thread part, the internal screw thread
Portion is ordinatedly equipped with plug screw, and second through-hole is arranged on the plug screw.
Preferably, the pressure-releasing chamber is connected to second cavity, and the maximum state of the second cavity volume corresponds to
State when door is closed.
Preferably, sealing ring is provided between the pressure release piston and the pressure-releasing chamber.
It is further preferred that the circumference of the pressure release piston is provided with the seal groove for installing the sealing ring.
Preferably, the extending direction of the inner cavity is parallel with the extending direction of the pressure-releasing chamber, the inner cavity and described lets out
Pressure chamber is arranged side by side.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages: working as oneself of the invention
When the chamber pressure of dynamic pressure release door closer increases, the hydraulic oil in inner cavity is flowed into pressure-releasing chamber, when chamber pressure reduces, pressure release
Hydraulic oil in chamber flows into inner cavity, therefore the pressure in inner cavity keeps relative equilibrium, prevents door closer from changing because of chamber pressure
And the damage generated, and the structure of the door closer is relatively simple, cost is relatively low.
Detailed description of the invention
Attached drawing 1 is a kind of structural schematic diagram of releasing pressure automatically door closer of the invention；
Wherein: 1, shell；11, inner cavity；111, the first cavity；112, the second cavity；12, pressure-releasing chamber；121, the first pressure-releasing chamber；
122, the second pressure-releasing chamber；13, first through hole；14, the second through-hole；2, piston body；21, check valve；22, rack gear；3, elastic component (pressure
Spring)；4, pressure release piston；41, seal groove；5, gear；6, plug screw；7, sealing ring.
Specific embodiment
The technical solution of the present invention will be further described below with reference to the accompanying drawings.
Shown in Figure 1 is a kind of releasing pressure automatically door closer of the invention, including shell 1, Neng Gou with inner cavity 11
Piston body 2, the transmission mechanism for driving piston body 2 to move that horizontal rectilinear motion is done in inner cavity 11, liquid is full of in inner cavity 11
Pressure oil, piston body 2 divide inner cavity 11 for the first cavity 111 and the second cavity 112, are provided on piston body 2 hydraulic for controlling
Oil is only capable of the check valve 21 flowed into the first cavity 111 from the second cavity 112, also sets between piston body 2 and the one end of shell 1
There is one to be used to provide the elastic component 3 that piston body 2 is moved towards 111 direction of the first cavity.
Also there is a pressure-releasing chamber 12 in shell 1, be provided with pressure release piston 4, pressure release piston 4 in pressure-releasing chamber 12 with being slidably matched
Pressure-releasing chamber 12 is divided for the first pressure-releasing chamber 121 and the second pressure-releasing chamber 122, the first pressure-releasing chamber 121 is connected to and is full of with inner cavity 11
Hydraulic oil, the second pressure-releasing chamber 122 are in communication with the outside.When the pressure in inner cavity 11 increases, 11 middle part liquid separation pressure oil of inner cavity is flowed into
In first pressure-releasing chamber 121, pressure release piston 4 is moved towards the second pressure-releasing chamber 122, pressure reduction in inner cavity 11；When in inner cavity 11
When pressure reduces, the hydraulic oil in the first pressure-releasing chamber 121 is flowed into inner cavity 1, and pressure release piston 4 is moved towards the first pressure-releasing chamber 121,
Pass through the change of 4 position of pressure release piston in this way, the pressure being able to maintain in inner cavity 11 is equal with the external world, therefore can be avoided because in
The damage of door closer structure caused by 11 pressure of chamber is excessive or too small.
Specifically, the first pressure-releasing chamber 121 is connected to by first through hole 13 with inner cavity 11, and the second pressure-releasing chamber 122 passes through second
Through-hole 14 is in communication with the outside, and the axial line of first through hole 13, the axial line of the second through-hole 14, the axial line of pressure-releasing chamber 12 are conllinear,
It is arranged so easy to process.
The cross section of first through hole 13 and the cross section of the second through-hole 14 are both less than the cross section of pressure release piston 4, anti-stopping leak
Pressure piston 4 is detached from from pressure-releasing chamber 12.
In the present embodiment, one end that the second pressure-releasing chamber 122 is in communication with the outside is provided with internal thread part, internal thread part cooperation
Ground is equipped with plug screw 6, and the second through-hole 14 is arranged on plug screw 6, and plug screw 6 can prevent pressure release piston 4 to be detached from from pressure-releasing chamber 12.
Pressure-releasing chamber 12 is connected to the second cavity 112, and the maximum state of 112 volume of the second cavity corresponds to shape when door is closed
State.Since when opening the door, the variation of pressure is maximum in inner cavity 11, and the second cavity 112 is compressed at this time, and pressure quickly increases, and lets out
Pressure chamber 12 can accommodate the hydraulic oil of part in the second cavity 112, prevent hypertonia in the second cavity 112.
It is provided with sealing ring 7 between pressure release piston 4 and pressure-releasing chamber 12, prevents hydraulic oil seepage.Correspondingly, pressure release piston 4
Circumference be provided with the seal groove 41 for installing sealing ring 7.
The extending direction of inner cavity 12 is parallel with the extending direction of pressure-releasing chamber 12, and inner cavity 11 and pressure-releasing chamber 12 are arranged side by side,
So that the structure of door closer is more compact.
In the present embodiment, transmission mechanism includes being arranged on piston body 2 and along the rack gear of 2 direction of motion of piston body arrangement
22 and the gear 5 that is rotatably arranged on hydraulic door-closer and is meshed with rack gear 22.5 turns of the opening and closing energy band moving gear of door
It is dynamic, and then drive the movement of piston body 2.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand the contents of the present invention and be implemented, and it is not intended to limit the scope of the present invention, it is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the scope of protection of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910114267.6A CN109723308A (en) | 2019-02-14 | 2019-02-14 | An automatic pressure relief door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910114267.6A CN109723308A (en) | 2019-02-14 | 2019-02-14 | An automatic pressure relief door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109723308A true CN109723308A (en) | 2019-05-07 |
Family
ID=66300475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910114267.6A Pending CN109723308A (en) | 2019-02-14 | 2019-02-14 | An automatic pressure relief door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109723308A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412227A (en) * | 2020-12-02 | 2021-02-26 | 合肥力驰信息科技发展有限公司 | Fire door is with starting and stopping equipment based on thermosetting resin flooding |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203097549U (en) * | 2013-02-25 | 2013-07-31 | 苏州市富尔达实业有限公司 | Door closer capable of lowering internal pressure |
| CN203716722U (en) * | 2013-12-03 | 2014-07-16 | 温州欧德门控科技发展有限公司 | Door closer with pressure relief function |
| CN205400375U (en) * | 2016-01-05 | 2016-07-27 | 希美克(广州)实业有限公司 | Hydraulic pressure door closer with high temperature decompression function |
| DE102015223747B3 (en) * | 2015-11-30 | 2016-12-15 | Geze Gmbh | Drive for a door or a window |
| CN209653737U (en) * | 2019-02-14 | 2019-11-19 | 苏州市富尔达科技股份有限公司 | A kind of releasing pressure automatically door closer |
-
2019
- 2019-02-14 CN CN201910114267.6A patent/CN109723308A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203097549U (en) * | 2013-02-25 | 2013-07-31 | 苏州市富尔达实业有限公司 | Door closer capable of lowering internal pressure |
| CN203716722U (en) * | 2013-12-03 | 2014-07-16 | 温州欧德门控科技发展有限公司 | Door closer with pressure relief function |
| DE102015223747B3 (en) * | 2015-11-30 | 2016-12-15 | Geze Gmbh | Drive for a door or a window |
| CN205400375U (en) * | 2016-01-05 | 2016-07-27 | 希美克(广州)实业有限公司 | Hydraulic pressure door closer with high temperature decompression function |
| CN209653737U (en) * | 2019-02-14 | 2019-11-19 | 苏州市富尔达科技股份有限公司 | A kind of releasing pressure automatically door closer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412227A (en) * | 2020-12-02 | 2021-02-26 | 合肥力驰信息科技发展有限公司 | Fire door is with starting and stopping equipment based on thermosetting resin flooding |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190507 |
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| RJ01 | Rejection of invention patent application after publication |