CN205502837U - Atmospheric pressure door closer - Google Patents
Atmospheric pressure door closer Download PDFInfo
- Publication number
- CN205502837U CN205502837U CN201620142950.2U CN201620142950U CN205502837U CN 205502837 U CN205502837 U CN 205502837U CN 201620142950 U CN201620142950 U CN 201620142950U CN 205502837 U CN205502837 U CN 205502837U
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- Prior art keywords
- air chamber
- cylinder body
- door closer
- piston
- air
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- Withdrawn - After Issue
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Abstract
The utility model discloses an atmospheric pressure door closer, including energy storage rotary mechanism, it includes casing, drive arrangement, drive arrangement includes cylinder body, the 2nd piston assembly, sealing element, sealing element and cylinder body, the 2nd piston assembly sealing connection, so that form an airtight space in the cylinder body, be filled with high -pressure gas in the airtight space, the 2nd piston assembly will airtight space falls into first air chamber, the second air chamber of intercommunication each other, drive arrangement still includes a piston assembly, the 2nd piston assembly's the other end and a piston assembly are connected, this atmospheric pressure door closer still include one end accept in transmission in the casing, transmission's the other end and door frame are connected. The utility model discloses an atmospheric pressure door closer has effectively solved the problem that the oil leak of traditional hydraulic pressure door closer, closing speed are influenced by hydraulic oil viscosity, and the utility model discloses a but the atmospheric pressure door closer cost of manufacture is low, the use environmental protection.
Description
Technical field
This utility model relates to door closer technical field, particularly relates to a kind of air pressure door closer.
Background technology
Along with social, scientific and technological continuous progress and development, people are more and more higher for the consciousness of building safety.Door closer, be
A kind of device that door leaf can be made to be automatically switched off, it is typically installed between door and doorframe, in the elasticity of door closer after door is opened
Door can be shut automatically under the effect of restoring force, it is ensured that after door is unlocked, close initial position accurately and timely, give
The life of people provides great convenience.
But, door closer of the prior art, such as mechanical spring door closer, when closing, impulsive force is big, on the one hand, when closing,
It occur frequently that because hiding not as good as the phenomenon hit, or closing a bigger strike note of moment generation；On the other hand, due to spring not
Stability so that door closer often lost efficacy.
In order to solve the problems referred to above, part manufacturer have developed all-hydraulic door closer and air-fuel mixture door closer so that whole switch gate
Process can be adjusted according to user's request, simultaneously effective protect door body and doorframe.
But, in prior art, all-hydraulic door closer and air-fuel mixture door closer yet suffer from following problem:
One, in use, often produce Leakage, cause the trouble that grade not in place of closing the door is the most unnecessary；
Two, mostly door closing speed is to be controlled by oil circuit, and the greatest problem of this technology is exactly that oil can variation with temperature viscosity
Also can change, the change of viscosity can affect the speed of flowing, eventually affects door closing speed.In other words, at same tune
Joint position, the door closing speed in winter and summer is different, particularly exterior door, and impact can be the biggest.Often thus need
Go to adjust the adjusting means of door closer, cause puzzlement to user.
Three, air-fuel mixture door closer is provided with the control valve can ventilated with the external world, but owing to air being mingled with dust, when relatively
The doping of many dusts enters grease chamber in entering cylinder barrel, makes grease chamber's hydraulic oil viscosity become big, and then affects door closing speed, and due to ash
Dirt rubs, and reduces the service life of door closer grease chamber.
Utility model content
The purpose of this utility model is to provide a kind of air pressure door closer, and this air pressure door closer efficiently solves conventional hydraulic door closer
The problem that leakage of oil, door closing speed are affected by hydraulic oil viscosity, and air pressure door closer of the present utility model can cost of manufacture be low, make
Use environmental protection.
In order to realize above-mentioned utility model purpose, the technical scheme that this utility model is used is as follows:
A kind of air pressure door closer, including: energy storage rotating mechanism, it includes the driving means that housing is connected with described housing；Institute
State the second piston component that driving means includes that cylinder body, one end be located in described cylinder body, be arranged on described second piston component
Potted component, described potted component is tightly connected with cylinder body, the second piston component, so that forming a confined air in described cylinder body
Between, it is filled with gases at high pressure in described confined space；Described confined space is divided into first be interconnected by described second piston component
Air chamber, the second air chamber, described first air chamber is located between the second piston component and potted component；
Described driving means also includes the first piston assembly being located in described housing, the other end of described second piston component with
First piston assembly connects；
This air pressure door closer also includes the actuating device that one end is contained in described housing, the other end of described actuating device and doorframe
Connect；
When opening door leaf, under external force, described actuating device drives first piston assembly to move near the direction of cylinder body,
And then drive described second piston component to move to the direction away from potted component, extrude the gases at high pressure in the second air chamber, make the
Gases at high pressure in two air chambers flow to the first air chamber, allow the second plenum space diminish；
When unclamping door leaf, external force disappears, and because the first active force is less than the second active force, described second piston component is near sealing
The direction motion of element, described first plenum space diminishes, and the gases at high pressure in the first air chamber flow to the second air chamber simultaneously, and then
Drive first piston assembly to move to the direction away from cylinder body, be further driven to actuating device and realize the closedown of door leaf；
Wherein, the gases at high pressure that first, second active force is respectively in the first, second air chamber pressure force to the second piston component,
Described first, second force direction is contrary.
In some specific embodiments, described second piston component includes push rod, the connecting elements being arranged on described push rod,
The contact internal walls of described connecting elements and cylinder body, and being located in described confined space, is divided into two to connect by described confined space
Air chamber, the air chamber near potted component is the first air chamber, and the air chamber away from potted component is the second air chamber, described connecting elements bag
Include throttle.
Further, described throttle has air inlet, venthole, steam vent and connects described venthole and steam vent
Throttling road；Described connecting elements also includes the 3rd sealing ring being located between throttle and the inwall of cylinder body；When opening door leaf, institute
Stating and have a gap between connecting elements and the inwall of cylinder body, described gases at high pressure flow to the first air chamber from the second air chamber；Unclamp door
During fan, described 3rd sealing ring seals described gap, and the gases at high pressure of the first air chamber flow into from air inlet, flow out from venthole,
The second air chamber is discharged into from steam vent after flow channel.
Further, described connecting elements also includes the first pad, the second pad, and the first pad and is located at by described throttle
Between two pads, described connecting elements also includes the nut in order to first, second pad and throttle to be fixed on push rod.
In some specific embodiments, described potted component is provided with a through hole, and described second piston component includes push rod, sets
Put the connecting elements on described push rod；Described push rod is connected through described through hole with first piston assembly.
In some specific embodiments, threaded with described housing in one end of described potted component, and the other end is located at described cylinder
Internal and with described cylinder body airtight connection；In the one end being connected with described cylinder body, described potted component is provided with the first groove and
Two grooves.
Further, described first groove is provided with the first sealing ring, in order to inwall and the junction of potted component of sealed cylinder block；
Described second groove is provided with the second sealing ring, in order to seal the junction of described push rod and potted component.
In some specific embodiments, described first piston assembly includes a piston only, the runner being located on piston only,
Described piston only is provided with to arrange the link slot of described push rod.
Further, described actuating device includes the fork that the cam being located in described housing is connected with described cam, described convex
Wheel is connected with described runner.
In some specific embodiments, on described doorframe, it is provided with the slide rail guiding mechanism being connected with described fork.
The technical scheme that this utility model provides has the advantages that
Air pressure door closer of the present utility model, by arranging the first air chamber, the second air chamber in being arranged on cylinder body, and fills in air chamber
Full gases at high pressure, meanwhile, arrange actuating device, first piston assembly and the second piston component being connected, work as opened door leaf
Time, actuating device can directly drive first piston component movement, and then drive the second piston component motion, extrude in the second air chamber
Gases at high pressure, the gases at high pressure in the second air chamber flow to the first air chamber by the gap of connecting elements Yu inboard wall of cylinder block；Unclamp door
After fan, owing in the second air chamber, the lifting surface area of pressure force is about the cross-sectional area of whole cylinder body built-in space, and in the first air chamber
The cross-sectional area of the lifting surface area of pressure force about cylinder body built-in space deducts the cross-sectional area of push rod, under pressure same case,
Second active force is more than the first active force, is promoted to housing direction by the second piston component, now, and the gases at high pressure of the first air chamber
The second air chamber is flowed to, final drive door leaf slowly closing through throttle.Air pressure door closer of the present utility model uses air pressure controlling party
Formula, directly avoids conventional hydraulic door closer leakage of oil, problem that door closing speed is affected by hydraulic oil viscosity, and this utility model
Air pressure door closer can cost of manufacture low, use environmental protection.
Accompanying drawing explanation
Fig. 1 is the view of a kind of specific embodiment installed and used by the air pressure door closer of the present embodiment；
Fig. 2 is the mounting plane structural representation of the present embodiment air pressure door closer；
Fig. 3 is the energy storage rotating mechanism of the present embodiment structural representation when opening door leaf；
Fig. 4 is the energy storage rotating mechanism of the present embodiment structural representation when closing door leaf；
Fig. 5 is the structure connection diagram of potted component in Fig. 3, the second piston component and cylinder body；
Fig. 6 is the structure connection diagram of potted component in Fig. 4, the second piston component and cylinder body；
Fig. 7 is the sectional view of the throttle of the present embodiment；
Fig. 8 is the structural representation of the throttle of the present embodiment.
Detailed description of the invention
In order to be fully understood from the purpose of this utility model, feature and effect, below with reference to accompanying drawing 1-8 to structure of the present utility model
The technique effect of think of, concrete structure and generation is described further.
As it is shown in figure 1, the air pressure door closer of the present embodiment, include energy storage rotating mechanism 1, slide rail guiding mechanism 2, Yi Jilian
Connect the actuating device 3 of described energy storage rotating mechanism 1 and slide rail guiding mechanism 2.In FIG, described energy storage rotating mechanism 1 is pacified
Being contained in the top of door leaf 4, slide rail guiding mechanism 2 is arranged on the top of doorframe 5.
As in figure 2 it is shown, be the mounting plane structural representation of the present embodiment air pressure door closer, described slide rail guiding mechanism 2 includes
There is the slide rail 22 being arranged on doorframe 5, and be arranged on the slide block 21 on described slide rail 22.Described actuating device 3 includes
Fork 31, described fork 31 one end is connected with described slide block 21, and the other end is connected with described energy storage rotating mechanism 1.
When opening door leaf 4, the motion of door leaf 4 drives described actuating device 3 to move, and fork 31 drives described slide block 21 edge
Slide rail 22 to slide, actuating device 3 drives energy storage rotating mechanism 1 motion accumulation of energy simultaneously.
When unclamping door leaf 4, described energy storage rotating mechanism 1 discharges accumulation of energy, drives described actuating device 3 to move, and then drives
Fork 31 moves, and described fork 31 band movable slider 21 moves along slide rail 22, and door leaf 4 cuts out.
It should be noted that the above-mentioned top that energy storage rotating mechanism 1 of the present utility model is arranged door leaf 4 and doorframe 5 is one
Plant preferred embodiment, be not offered as air pressure door closer of the present utility model is arranged the restriction of position.
As shown in figures 3-8, described energy storage rotating mechanism 1 includes the driving means 200 that housing 100 is connected with described housing 100.
Described driving means 200 includes cylinder body 210, first piston assembly the 220, second piston component 230, potted component 240.
Described first piston assembly 220 is located in described housing 100.Described first piston assembly 220 include a piston only 221,
The runner 222 being located on piston only 221, described piston only 221 is provided with to arrange the link slot 223 of push rod 231.
One end of described second piston component 230 is located in described cylinder body 210, the other end of described second piston component 230 with
First piston assembly 220 connects.Described potted component 240 is arranged on described second piston component 230, with cylinder body 210,
Second piston component 230 is tightly connected, so that forming a confined space in described cylinder body 210, is filled with in described confined space
Gases at high pressure 250.Preferably, in the present embodiment, high pressure nitrogen is used.It should be noted that high pressure of the present utility model
Gas includes but not limited to high pressure nitrogen.Described confined space is divided into the first gas being interconnected by described second piston component 230
Room the 260, second air chamber 270, described first air chamber 260 is located between the second piston component 230 and potted component 240.
Specifically, described second piston component 230 includes push rod 231, the connecting elements 232 being arranged on described push rod 231,
Described connecting elements 232 and the contact internal walls of cylinder body 210, and be located in described confined space, described confined space is divided into two
The air chamber of individual connection, the air chamber near potted component 240 is the first air chamber 260, and the air chamber away from potted component 240 is second
Air chamber 270.
Wherein, described connecting elements 232 includes throttle the 2321, first pad the 2322, second pad 2323, described throttling
Circle 2321 is located between the first pad 2322 and the second pad 2323, described connecting elements 232 also include in order to by first,
The nut 2324 that second pad and throttle are fixed on push rod.Described connecting elements 232 also includes being located at throttle and cylinder body
The 3rd sealing ring 2325 between inwall.
As shown in Figure 7,8, wherein, described throttle 2321 have air inlet 001, venthole 002, steam vent 003, with
And connect the throttling road 004 of described venthole 002 and steam vent 003.
As shown in Figure 5,6, when opening door leaf, there is between described connecting elements 232 and the inwall of cylinder body 210 gap 005,
Described gases at high pressure 250 flow to the first air chamber 260, the flow direction of shown gases at high pressure such as Fig. 3,5 hollow cores from the second air chamber 270
Shown in arrow.
When unclamping door leaf, described 3rd sealing ring 2325 seals described gap 005, the gases at high pressure 250 of the first air chamber 260 from
Air inlet 001 flows into, flows out from venthole 002, discharges into the second air chamber 270, institute from steam vent 003 after warp knuckle runner 004
Show that the flow direction of gases at high pressure is as shown in Fig. 4,6 hollow core arrows.
Described potted component 240 is provided with a through hole 241, and described push rod 231 is through described through hole 241 and first piston assembly
220 connect, and are arranged on link slot 223.Threaded with described housing 100 in one end of described potted component 240, another
In end is located at described cylinder body 210 and with described cylinder body 210 airtight connection.
Specifically, in the one end being connected with described housing 100, described potted component 240 is provided with screw thread, at described housing 100
Relevant position, it may have screw thread.In the one end being connected with described cylinder body 210, it is recessed that described potted component 240 is provided with first
Groove 242 and the second groove 243.
Preferably, described first groove 242 is provided with the first sealing ring 244, in order to inwall and the sealing unit of sealed cylinder block 210
The junction of part 240；Described second groove 243 is provided with the second sealing ring 245, in order to seal described push rod 231 and to seal
The junction of element 240.
Described actuating device 3 also includes the fork 31 that the cam 32 being located in described housing 100 is connected with described cam 32,
Described cam 32 is connected with described first piston assembly 220.
As it is shown on figure 3, for the energy storage rotating mechanism of the present embodiment structural representation when opening door leaf.Under external force,
Opening door leaf 4, described actuating device 3 drives first piston assembly 220 to move near the direction of cylinder body 210, and then drives
Described second piston component 230 moves to the direction away from potted component 240, extrudes the gases at high pressure 250 in the second air chamber 270,
Make the gases at high pressure 250 in the second air chamber 270 flow to the first air chamber 260, allow the second air chamber 270 space diminish.
Specifically, when trying hard to recommend enabling outside, described slide block slides along slide rail, drives fork motion, and then cam is offered？Turn
Arrive, drive first piston assembly to cylinder body direction move, described first piston assembly promote further the second piston component to away from
The direction motion of potted component, connecting elements extrudes the high pressure nitrogen of the second air chamber, makes high pressure nitrogen in connecting elements with cylinder body
Gap between wall flows to the first air chamber, and final door is opened.
As shown in Figure 4, for the present embodiment energy storage rotating mechanism close door leaf time structural representation.When unclamping door leaf, outward
Power disappears, and now, the gases at high pressure being filled in the first air chamber and the second air chamber produce active force in the both sides of the second piston component,
And force direction is contrary.Now define the gases at high pressure that first, second active force is respectively in first, second air chamber to live to second
The pressure force of plug assembly.Owing in the second air chamber, the lifting surface area of pressure force is about the cross-sectional area of whole cylinder body built-in space, and
In first air chamber, the cross-sectional area of the lifting surface area of pressure force about cylinder body built-in space deducts the cross-sectional area of push rod, in pressure phase
In the case of Tong, the second active force is more than the first active force, so the first active force is less than the second active force, described second piston set
Part is near the motion of the direction of potted component, and described first plenum space diminishes, and the gases at high pressure in the first air chamber flow to the simultaneously
Two air chambers, specifically, the gases at high pressure of the first air chamber flow to the second air chamber through throttle, final drive door leaf slowly closing and then
Drive first piston assembly to move to the direction away from cylinder body, be further driven to actuating device and realize the slowly closing of door leaf, it is to avoid
Traditional door closer is closed the door impact force is big, the sound is big drawback.
Air pressure door closer of the present utility model uses generator pressure control method, directly avoids conventional hydraulic door closer leakage of oil, speed of closing the door
The problem that degree is affected by hydraulic oil viscosity, and air pressure door closer of the present utility model can cost of manufacture be low, use environmental protection.
The above, be only preferred embodiment of the present utility model, and this utility model not does any pro forma restriction,
Therefore all contents without departing from technical solutions of the utility model, according to technical spirit of the present utility model to made for any of the above embodiments
What simple modification, equivalent variations and modification, all still fall within the range of technical solutions of the utility model.
Claims (10)
1. an air pressure door closer, it is characterised in that including:
Energy storage rotating mechanism, it includes the driving means that housing is connected with described housing；
Described driving means includes the second piston component that cylinder body, one end be located in described cylinder body, is arranged in described second piston set
Potted component on part, described potted component is tightly connected with cylinder body, the second piston component, so that shape in described cylinder body
Become a confined space, in described confined space, be filled with gases at high pressure；Described confined space is divided into by described second piston component
The first air chamber of being interconnected, the second air chamber, described first air chamber is located between the second piston component and potted component；
Described driving means also includes the first piston assembly being located in described housing, the other end of described second piston component with
First piston assembly connects；
This air pressure door closer also includes the actuating device that one end is contained in described housing, the other end of described actuating device and doorframe
Connect；
When opening door leaf, under external force, described actuating device drives first piston assembly to move near the direction of cylinder body,
And then drive described second piston component to move to the direction away from potted component, extrude the gases at high pressure in the second air chamber,
Make the gases at high pressure in the second air chamber flow to the first air chamber, allow the second plenum space diminish；
When unclamping door leaf, external force disappears, and because the first active force is less than the second active force, described second piston component is near sealing
The direction motion of element, described first plenum space diminishes, and the gases at high pressure in the first air chamber flow to the second air chamber simultaneously,
And then drive first piston assembly to move to the direction away from cylinder body, it is further driven to actuating device and realizes the closedown of door leaf；
The gases at high pressure during wherein first, second active force the is respectively first, second air chamber pressure force to the second piston component,
Described first, second force direction is contrary.
Air pressure door closer the most according to claim 1, it is characterised in that:
Described second piston component includes push rod, the connecting elements being arranged on described push rod, and described connecting elements is interior with cylinder body
Wall contacts, and is located in described confined space, and described confined space is divided into two air chambers connected, near potted component
Air chamber be the first air chamber, the air chamber away from potted component is the second air chamber, and described connecting elements includes throttle.
Air pressure door closer the most according to claim 2, it is characterised in that:
Described throttle has air inlet, venthole, steam vent and connects the throttling road of described venthole and steam vent；
Described connecting elements also includes the 3rd sealing ring being located between throttle and the inwall of cylinder body；
When opening door leaf, having a gap between described connecting elements and the inwall of cylinder body, described gases at high pressure are from the second air chamber stream
To the first air chamber；When unclamping door leaf, described 3rd sealing ring seals described gap, and the gases at high pressure of the first air chamber are from air inlet
Hole flows into, flows out from venthole, discharges into the second air chamber from steam vent after flow channel.
Air pressure door closer the most according to claim 3, it is characterised in that:
Described connecting elements also includes the first pad, the second pad, and described throttle is located between the first pad and the second pad,
Described connecting elements also includes the nut in order to first, second pad and throttle to be fixed on push rod.
Air pressure door closer the most according to claim 1, it is characterised in that:
Described potted component is provided with a through hole, the connection structure that described second piston component includes push rod, is arranged on described push rod
Part；Described push rod is connected through described through hole with first piston assembly.
Air pressure door closer the most according to claim 5, it is characterised in that:
Threadeding with described housing in one end of described potted component, the other end is located at interior and airtight with the described cylinder body company of described cylinder body
Connect；
In the one end being connected with described cylinder body, described potted component is provided with the first groove and the second groove.
Air pressure door closer the most according to claim 6, it is characterised in that:
Described first groove is provided with the first sealing ring, in order to inwall and the junction of potted component of sealed cylinder block；Described second
Groove is provided with the second sealing ring, in order to seal the junction of described push rod and potted component.
8. according to the air pressure door closer described in claim 2 or 5, it is characterised in that:
Described first piston assembly includes a piston only, the runner being located on piston only, described piston only be provided with in order to
The link slot of described push rod is set.
Air pressure door closer the most according to claim 8, it is characterised in that:
Described actuating device includes the fork that the cam being located in described housing is connected, described cam and described turn with described cam
Wheel connects.
Air pressure door closer the most according to claim 9, it is characterised in that:
On described doorframe, it is provided with the slide rail guiding mechanism being connected with described fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620142950.2U CN205502837U (en) | 2016-02-25 | 2016-02-25 | Atmospheric pressure door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620142950.2U CN205502837U (en) | 2016-02-25 | 2016-02-25 | Atmospheric pressure door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205502837U true CN205502837U (en) | 2016-08-24 |
Family
ID=56726984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620142950.2U Withdrawn - After Issue CN205502837U (en) | 2016-02-25 | 2016-02-25 | Atmospheric pressure door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205502837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587199A (en) * | 2016-02-25 | 2016-05-18 | 希美克(广州)实业有限公司 | Pneumatic door closer |
-
2016
- 2016-02-25 CN CN201620142950.2U patent/CN205502837U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587199A (en) * | 2016-02-25 | 2016-05-18 | 希美克(广州)实业有限公司 | Pneumatic door closer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160824 Effective date of abandoning: 20170606 |