CN104921490A - Cylinder-type air pressure production and adjustment device for lift seat - Google Patents
Cylinder-type air pressure production and adjustment device for lift seat Download PDFInfo
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- CN104921490A CN104921490A CN201510293926.9A CN201510293926A CN104921490A CN 104921490 A CN104921490 A CN 104921490A CN 201510293926 A CN201510293926 A CN 201510293926A CN 104921490 A CN104921490 A CN 104921490A
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Abstract
A cylinder-type air pressure production and adjustment device for a lift seat comprises a cylinder (2) and an air pipe (8), wherein one end of a high-pressure air tank (18) is connected with an overflow valve (6) and a one-way air inlet valve (9); a reversing valve (7) is communicated with the cylinder (2); the one-way air inlet valve of the high-pressure air tank is connected with an air pump through the air pipe; another one-way air inlet valve in the air pump is communicated with the atmosphere; a rack (12) and a gear (13) meshed with the rack are arranged on the drifting segment of the air pump extension bar; a rotating shaft (17) fixed to the center of the gear in the circumferential direction is in rigid connection with a seat back frame (14); a compressed spring (15) and a seat board (16) are mounted on the rear side of the seat back frame; the reversing valve is a three-position three-way hand-operated directional valve with three air pipe connectors; a valve element with three valve ports is arranged in the reversing valve and can adjust communication and disconnection between the air pipe connectors and the valve ports. The cylinder-type air pressure production and adjustment device can realize stepless regulation of the height of the lift seat, and is good in buffering, high in comfort degree, low in probability of component damage and long in service life.
Description
Technical field
the present invention relates to one to be stretched by adjustable pressure control cylinder plunger rod, realize the device of seat step-less adjustment height.
Background technology
utilize cylinder block stopper rod flexible come the seat of adjusting seat height, conclude the business for many years in market, because seated user's body weight is different, the height of seat regulates still difficult satisfactory: the excessive person of body weight can make seat be down to lowest order, the too small person's difficulty of body weight makes seat decline and be in highest order, respectively mediating with the difference adjustable height of its body weight again of average-sized man, after again development utilization to using manual control handle, in the mode such as latch or friction lock, centre position is located, but this is a kind of " hard land ", cushioning effect is little, component damage is large, easily break down, and can only regulate by stepping, step-less adjustment can not be realized.CN201020612048.5 has announced " lifting reposition pneumatic rod for chair ", is to propose improvement idea to improving piston rod in the stability resetted when running in barrel that leads; CN201320627640.6 has announced " a kind of lifting seat air pressure rod ", is to suggest improvements to the firmness of cylinder and flexing resistance.Through retrieval and market survey, not yet find that report about to the step-less adjustment of height of seat being the device controlled by air pressure and material object are appeared on the market.
Summary of the invention
the air pressure that the technical problem to be solved in the present invention is to provide a kind of cylinder type lifting seat produces and adjusting device.
solve this technical problem and adopt following technical scheme:
the air pressure of this cylinder type lifting seat produces and adjusting device, comprise cylinder, spring at the bottom of cylinder, damping hole in cylinder and tracheae, feature is that high pressure tank one end is connected to overflow valve and breather cheek valve, reversal valve is communicated with cylinder, the breather cheek valve of high pressure tank is connected with air pump tracheae, air pump is communicated with air by breather cheek valve, the air pump extension bar section of dissociating face has tooth bar and with its meshed gears, circumference is fixed on the rotating shaft of gear centre and chair back rack is rigidly connected, the rotating shaft two ends of gear are provided with bearing, its bearing block is fixed on seat board, stage clip and seat board are installed on rear side of chair back rack, reversal valve is 3-position-3-way hand-operated direction valve, this reversal valve there are three air pipe interfaces, by tracheae respectively with cylinder, high pressure tank is connected with air, have in this valve by rotate or slidable adjustment three valve ports and three air pipe interfaces lead to and the spool closed.
air pressure in described high pressure tank is 0.4-0.6Mpa.
the invention has the beneficial effects as follows: the height of seat can by seated user need realize step-less adjustment, replace mechanical adjustment by air pressure adjustment, resiliency is good, and seated user is comfortable, and component damage is little, long service life.
Accompanying drawing explanation
accompanying drawing is this apparatus structure schematic diagram.
Detailed description of the invention
the present invention is also described in detail with reference to accompanying drawing below in conjunction with embodiment: see accompanying drawing,
the air pressure of this cylinder type lifting seat produces and adjusting device, comprise cylinder 2, spring 1 at the bottom of cylinder, damping hole 3 in cylinder and tracheae 8, high pressure tank 18 one end is connected to overflow valve 6 and breather cheek valve 9, reversal valve 7 is communicated with cylinder 2, the breather cheek valve of high pressure tank is connected with tracheae with air pump 11, air pump is communicated with air by breather cheek valve 10, the air pump extension bar section of dissociating face has tooth bar 12 and with its meshed gears 13, the rotating shaft 17 that circumference is fixed on gear centre is rigidly connected with chair back rack 14, the rotating shaft two ends of gear are provided with bearing, its bearing block is fixed on seat board, stage clip 15 and seat board 16 are installed on rear side of chair back rack, reversal valve is 3-position-3-way hand-operated direction valve, this reversal valve there are three air pipe interfaces, by tracheae respectively with cylinder, high pressure tank is connected with air, have in this valve by rotate or slidable adjustment three valve ports and three air pipe interfaces lead to and the spool closed.
air pressure in described high pressure tank 18 is 0.4-0.6Mpa.
with this device seat no matter when taking or unmanned sit time, if reversal valve 7 control cylinder 2 internal gas pressure communicates with atmospheric pressure, then on plunger rod 5 because of bear chair gravity or chair heavily add seated user's body weight time, seat support drops to minimum point, also communicate with high pressure tank 18 by the air pressure in reversal valve 7 control cylinder 2, under the effect of gases at high pressure, seat support rises to highest order; When this seat needs in any controllable scope inner position, only reversal valve need cut out, the air pressure in cylinder is neither communicated with air, can not with high pressure tank phase general rule yet.The pilot seal part 4 of cylinder body upper end is interior completely closed with the air pressure in plunger with cylinder, and because the gas pressure area below plunger lower head is greater than above it, and the difference of its two sides gas pressure power and chair weigh and heavy the balancing with joint efforts of people, and chair height is just fixed.For the people that weight is large, plunger rod can the decline of trace, the gas compression in cylinder and the reaction force that adds upwards, makes dynamic balance finely tune voluntarily and locate; Owing to there being damping slotted eye 3 between plunger lower head and cylinder surfaces, make plunger rod rising and decrease speed become even, the spring 1 of cylinder bottom reduces plunger further to the impact of cylinder bottom.
the hyperbar of high pressure tank is from the reciprocating inflation of air pump 11 inner carrier, and its to move back and forth be repeatedly rotated clockwise and counterclockwise by gear 13 to cause the left and right push-and-pull of tooth bar 12, this push-and-pull is again because seated user back causes the pressure of the chair back 14 and spring 15 and putting.
with the seat of this device, no matter body weight size, as long as be transferred to seated user's body weight and seat (except the chair leg) gravity of weight sum and the pressure balance of cylinder interior gas, can location, any position in range, that realize buffering, stepless height regulates.
Claims (2)
1. the air pressure of a cylinder type lifting seat produces and adjusting device, comprise cylinder (2), spring (1) at the bottom of cylinder, damping hole (3) in cylinder and tracheae (8), it is characterized in that high pressure tank (18) one end is connected to overflow valve (6) and breather cheek valve (9), reversal valve (7) is communicated with cylinder (2), the breather cheek valve of high pressure tank is connected with tracheae with air pump (11), air pump is communicated with air by breather cheek valve (10), the air pump extension bar section of dissociating face has tooth bar (12) and with its meshed gears (13), the rotating shaft (17) that circumference is fixed on gear centre is rigidly connected with chair back rack (14), the rotating shaft two ends of gear are provided with bearing, its bearing block is fixed on seat board, stage clip (15) and seat board (16) are installed on rear side of chair back rack, reversal valve is 3-position-3-way hand-operated direction valve, this reversal valve there are three air pipe interfaces, by tracheae respectively with cylinder, high pressure tank is connected with air, have in this valve by rotate or slidable adjustment three valve ports and three air pipe interfaces lead to and the spool closed.
2. the air pressure of cylinder type lifting seat as claimed in claim 1 produces and adjusting device, it is characterized in that the air pressure in described high pressure tank (18) is 0.4-0.6Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510293926.9A CN104921490B (en) | 2015-06-02 | 2015-06-02 | The air pressure of cylinder type lifting seat is produced and adjusting means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510293926.9A CN104921490B (en) | 2015-06-02 | 2015-06-02 | The air pressure of cylinder type lifting seat is produced and adjusting means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104921490A true CN104921490A (en) | 2015-09-23 |
| CN104921490B CN104921490B (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510293926.9A Active CN104921490B (en) | 2015-06-02 | 2015-06-02 | The air pressure of cylinder type lifting seat is produced and adjusting means |
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| Country | Link |
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| CN (1) | CN104921490B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805215A (en) * | 2016-05-18 | 2016-07-27 | 浙江工业职业技术学院 | Air pressure type damping device for mechanical device |
| CN108991798A (en) * | 2018-07-12 | 2018-12-14 | 廖敏 | A kind of office chair preventing sitting |
| CN110584366A (en) * | 2019-09-09 | 2019-12-20 | 武汉科技大学 | Novel multifunctional office chair |
Citations (7)
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| CN1582873A (en) * | 2003-08-22 | 2005-02-23 | 贾荣显 | Pneumatic wheeled chair for going on stairs |
| CN2717302Y (en) * | 2004-06-02 | 2005-08-17 | 柯梅富 | Up-down device for hairdresser's chair |
| CN201216701Y (en) * | 2008-06-11 | 2009-04-08 | 河南农业大学 | Air pressure stand assisting chair |
| CN202051298U (en) * | 2011-05-01 | 2011-11-30 | 雷霆 | Stepless adjustment extensible device mainly for lifting chair |
| CN203189222U (en) * | 2013-02-04 | 2013-09-11 | 重庆讯嵩科技有限公司 | Hand-cranking manual inflator pump |
| CN103693157A (en) * | 2013-11-29 | 2014-04-02 | 廖满贵 | energy-saving bicycle |
| CN104443129A (en) * | 2014-11-14 | 2015-03-25 | 重庆电讯职业学院 | Automatic lifting device and automatic lifting method of bicycle seat and bicycle |
-
2015
- 2015-06-02 CN CN201510293926.9A patent/CN104921490B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1582873A (en) * | 2003-08-22 | 2005-02-23 | 贾荣显 | Pneumatic wheeled chair for going on stairs |
| CN2717302Y (en) * | 2004-06-02 | 2005-08-17 | 柯梅富 | Up-down device for hairdresser's chair |
| CN201216701Y (en) * | 2008-06-11 | 2009-04-08 | 河南农业大学 | Air pressure stand assisting chair |
| CN202051298U (en) * | 2011-05-01 | 2011-11-30 | 雷霆 | Stepless adjustment extensible device mainly for lifting chair |
| CN203189222U (en) * | 2013-02-04 | 2013-09-11 | 重庆讯嵩科技有限公司 | Hand-cranking manual inflator pump |
| CN103693157A (en) * | 2013-11-29 | 2014-04-02 | 廖满贵 | energy-saving bicycle |
| CN104443129A (en) * | 2014-11-14 | 2015-03-25 | 重庆电讯职业学院 | Automatic lifting device and automatic lifting method of bicycle seat and bicycle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805215A (en) * | 2016-05-18 | 2016-07-27 | 浙江工业职业技术学院 | Air pressure type damping device for mechanical device |
| CN108991798A (en) * | 2018-07-12 | 2018-12-14 | 廖敏 | A kind of office chair preventing sitting |
| CN108991798B (en) * | 2018-07-12 | 2021-04-09 | 安吉美堂家具有限公司 | Office chair capable of preventing long-time sitting |
| CN110584366A (en) * | 2019-09-09 | 2019-12-20 | 武汉科技大学 | Novel multifunctional office chair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104921490B (en) | 2017-10-31 |
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