CN100342144C

CN100342144C - Cylinder valve assembling structural body

Info

Publication number: CN100342144C
Application number: CNB2005100064540A
Authority: CN
Inventors: 成百亨
Original assignee: KOREA JASPULIN CO Ltd
Current assignee: KOREA JASPULIN CO Ltd
Priority date: 2004-02-05
Filing date: 2005-02-01
Publication date: 2007-10-10
Anticipated expiration: 2025-02-01
Also published as: CN1651775A; KR200348804Y1

Abstract

The present invention relates to a cylinder valve assembling structural body which can combine the inner and outer part cylinders for forming the cylinder and can control the flow of the gas by adjusting the button in the upper side internal part thereby can adjust the height of a chair. It is characterized in that the following structure is adopted, a 'J' shape mounting groove which towards outside and upside is formed on the circumferential of the upper side surface edge end of the valve body for controlling the flow of the gas; a sealing material which contacts with the inner circumferential surface of the external cylinder and can hold air tightness is disposed in the mounting groove; the seal material mounted in the mounting groove can expand to the outside under the function of the press fixing force of a button guide part, so can play fix and combine function and thereby hold air tightness, wherein, the button guide part lies in the internal part of the top side of the external cylinder for guiding button. So, not only the combination is easy, the fixing force is stable, but also the air tightness can be held.

Description

Cylinder valve assembling structural body

Technical field

The present invention relates to the valve of cylinder, relate in particular to by making valve with the stable airtight cylinder valve assembling structural body that combinations of states improves assembling performance in the cylinder of keeping.

Background technique

People use the height-adjusting device of chair with cylinder as handling official business usually, and this cylinder (gas cylinder) generally is made of following each several part: be placed in ground base; Be inserted into base central authorities, and the inner housing that is provided with vertical links; When the lower end outer circumferential face slidably was inserted into the inner peripheral surface of described housing, inner peripheral surface slidably combined with described connecting rod, and the outer inside casing that combines with the seat board of chair of upper end portion; Mode with the interval predetermined distance in described outer inside casing provides, and the inner cylinders that slidably combines with the upper end piston of described connecting rod; With the state that combines with described outer inside casing, its lower side combines with described inner cylinders, thereby gas is carried out the circuit valve; Insert vertically to valve, and open and close the valve pin of stream.

When carrying out work, by the button that is connected with valve pin is operated, can reduce valve pin and make stream open, and this moment, the gas of storage promotes piston via the stream of slit between the cylinder of inside and outside and valve in the inner cylinders, cylinder is risen, and then seat board portion is moved up, still, if release button behind the arrival assigned position, then valve pin will block stream, makes seat board portion be maintained fixed state.In addition, after operating button, push seat board portion if use greater than the power of gas pressure, then the gas of inner cylinders will upwards promote piston and mobile by the stream of valve and the slit of inside and outside cylinder, and the seat board subordinate is fallen.

In described cylinder gas being carried out the circuit valve is made of aluminium or synthetic resin material usually, and pass through working machine, around its outer circumferential face edge, process seal ring (oring) insertion groove, and side face processes pin-and-hole etc. within it, and, keep tightness by the seal ring that is inserted in the seal ring insertion groove.

As the one example, there is claimant of the present invention once to apply for and is registered as invention 20-0301431 number and after the technology assessment request, obtains to keep the invention of decision.

But, as shown in Figure 1, because also having adopted, described valve make the seal ring 20 that is applicable to described valve body 10 with the combinations of states that combines with the seal ring patchhole 11 in the outside that is formed at described valve body 10 structure in the cylinder 30, therefore in conjunction with the time, be easy to generate the phenomenon that seal ring 2 is clamped or broken away from, and owing to want first combination seal circle to be inserted into again in the cylinder, therefore in conjunction with relatively more difficult.

Summary of the invention

The present invention proposes for addressing the above problem just, the objective of the invention is more like a cork valve to be connected to cylinder interior, and make the combination in the button guide portion that assembling determines the stream of valve of the seal ring (sealing material) that is attached to the valve outer circumferential face, thereby the assembling convenience and the tightness that improve valve are kept ability.

In order to achieve the above object, the invention provides a kind of cylinder valve structure, inside and the outside cylinder of forming cylinder are combined, by regulating the button of upper interior, flowing of control gaseous, thus chair height regulated, it is characterized in that, adopted following structure: at the upper side marginal end of the mobile valve body of control gaseous, along outwards being provided with and the upwards open mounting groove that is "  " shape on every side; In described mounting groove, be provided with and contact with the inner peripheral surface of described outer inside casing and keep bubble-tight sealing material; Be installed in the interior sealing material of described mounting groove, by the inside of the top side that be arranged on described outer inside casing and the button guide portion of call-on button generate pressurization retention force and laterally expansion on one side, one side secure bond is so that keep tightness.

So that described sealing material in the lower end of described valve body also in the mode of the structure combination identical with the upper end of described valve body, lower edge end at described valve body is formed with the mounting groove that reaches downward opening laterally, and after will sealing the material setting and being fixed to described mounting groove, by the cover combination.

Description of drawings

Fig. 1 represents the sectional view of the valve body assembling structural body of cylinder valve in the past.

Fig. 2 is the assembling structural body of expression based on cylinder valve of the present invention, and is the sectional view that the preceding state of button is pressed in expression.

Fig. 3 be expression based on the assembling structural body of cylinder valve of the present invention, and be the sectional view that state behind the button is pressed in expression.

Fig. 4 is the sectional view of expression based on the suitable state of cylinder valve of the present invention.

Among the figure: 100-inner cylinders, 200-outer inside casing, 300-valve body, 310-mounting groove, 400-support part, 500-cover, 600-valve pin, 700-button, 800-button guide portion, 900,910-seals material.

Embodiment

Below in conjunction with accompanying drawing, the assembling structural body based on cylinder valve of the present invention is elaborated.But, people are produced main points of the present invention obscure, then can omit, and only the valve assembling structural body among the present invention is elaborated to the detailed description of this part if think that some part to conventional cylinder is elaborated.

Based on valve arrangement body of the present invention, be included in the seat board portion that is applicable to chair and cylinder by its height of air pressure adjustment, and use by following mode, that is: optionally gas is circulated when carrying out descending operation based on button when the inside and outside cylinder that connects cylinder, and make it that upper end to connecting rod is provided by this circuit air pressure, and with interior outside cylinder combination, and seat board portion is carried out descending operation.

As shown in the figure, the structure of this valve comprises: the valve body 300 that they is connected as one at the upside position of inside and outside cylinder 100,200; Be inserted into the axis hole of valve body 300 and the support part 400 of guiding gas; The cover 500 that makes support part 400 be connected on the valve body 300 and prevent to break away from; Be inserted into the support part 400 in the described valve body 300, open and close the valve pin 600 of gas connecting rod; Make the button 700 of valve pin 600 liftings at the upside of valve body 300; Button guide portion 800 to the lifting channeling conduct of described button 700; And closely be fixed on these the connecting part so that keep bubble-tight a plurality of sealing material 900.

Described valve body 300, at the upper side marginal end that is close to inside face of the upper lateral part of described outer inside casing 200, be formed with along around the upwards and outside mounting groove 310 of open "  " shape so that the sealing material 900 of circular ring-type is set.In addition, the sealing material 900 of seal ring shape with the combinations of states that encases at above-below direction in described mounting groove 310.

Described sealing material 900 is formed by the resin material of circular ring-type, and inwardly lateral direction expands by the pressurization combination force of button guide described later portion 800, and then clings to the inwall of outer inside casing 200, produces airtight power.

Described button guide portion 800 externally cylinder 200 top side inner peripheral surfaces occupies the interval and tightly combination of regulation, and its axial centre is provided with the button guide hole 810 that is used for call-on button 700 liftings, simultaneously, its underpart be provided with downwards open can relative slippage and carry out the engagement groove 820 that face contacts with its horizontal plane with the vertical surface of mounting groove 310.

Promptly, the engagement groove 820 of described button guide portion 800 when assembling with the mode combination of the mounting groove 310 that surrounds described valve body 300, its underpart is to push the mode combination of the sealing material 900 that is arranged in the mounting groove 310 simultaneously, the inside lateral direction in sealing material 900 limits is expanded, and the limit is close to and is attached to outer inside casing 200.

In addition, the outer circumferential face of the underpart of described valve body 300 along around be provided with ladder-type bank 360 so that in conjunction with the time make and outer inside casing 200 predetermined distances and the inner cylinders 100 that combines can realize in conjunction with fixing at interval.

Be combined with the sealing material 910 that contacts with the inner peripheral surface of inner cylinders 100 at described ladder-type Kan360Chu.And described cover 500 in conjunction with the time, described sealing material 910 inside lateral direction expand, and keep the tightness with inner cylinders 100.Wherein, described cover 500 is the disengaging parts that prevent inner members such as support part at described lower curtate.

Described cover 500 is formed with in the above can be with the connecting part 510 of the form combination of the lowest end of the bank 360 that surrounds described valve body 300; Inner top side portion around described connecting part 510 is formed with the projection 520 of the slot part 370 that can be embedded on the vertical surface that is formed at valve body 300 banks 360, so that prevent downward disengaging; Projection 520 upwards in conjunction with the time limit sealing material 910 limit of exerting pressure is fixed.In addition, central authorities are provided with the hole to valve pin 600 channeling conducts, are the supporting projections 530 that being formed with in interior week of center combines with the hole of described valve body 300 and the sealing material of inboard is supported with the hole.

In addition, the open terrain Cheng Youneng that makes progress around the edge on described valve body 300 will change the grooving 380 that reduce to minimum level because of the inside/outside diameter size that weight reduces or thermal distortion causes, and, form or provide stream hole that guiding gas flows, support part etc. in internal holes, but these technology identical with technique known and function have been adopted.

As mentioned above, major technique characteristics based on valve arrangement body of the present invention are button guide portion 800 and valve body 300, during assembling as long as after inserting or be attached in the outer inside casing 200 with one in valve body 300 or the button guide portion 800, they are combined closely mutually, like this, be in sealing material 900 in the mounting groove 310 of described valve body 300 will be under their effect of combination force inwardly lateral direction expand, and cling to the inner circle wall of outer inside casing 200, its result, not only in conjunction with easy, retention force is stable, and can keep tightness well.

Thereby, assembling structural body based on cylinder valve of the present invention, by with the button guide portion of call-on button with when being installed in the outer inside casing according to the valve body that button actions changes gas flow path, the sealing material is to be fixed clampingly to the state at valve body upper side edge along the vertical direction, based on the final power of button guide portion and inwardly expand in the outside, thereby contact is fixed to the inwall of outer inside casing.Like this, not only in conjunction with easy, retention force is stable, and can keep tightness well.

Claims

1. a cylinder valve assembling structural body combines the inside and outside cylinder that constitutes cylinder, and control gaseous is mobile by the button that is positioned at upper interior is operated, so that regulate chair height, it is characterized in that:

Possess following structure:

At the upper side marginal end of the mobile valve body of control gaseous, along outwards being formed with on every side and the open mounting groove that is "  " shape that makes progress;

Engage with the inner peripheral surface of described outer inside casing to described mounting groove setting and keep bubble-tight sealing material;

Be set to the described sealing material of described mounting groove, under the effect of the pressurization retention force of button guide portion, expand laterally and play the secure bond effect, and then the maintenance tightness, wherein, described button guide portion be positioned at described outer inside casing the top side inside and be used for call-on button.

2. cylinder valve assembling structural body as claimed in claim 1 is characterized in that:

3. as claim 1 or 2 described cylinder valve assembling structural bodies, it is characterized in that:

The open terrain that makes progress around the edge on described valve body becomes to be useful on the grooving that the inside/outside diameter size that reduces because of weight or thermal distortion causes is changed reduction.