CN2465013Y

CN2465013Y - Pressure-releasing valve with pressure regulation

Info

Publication number: CN2465013Y
Application number: CN 01203399
Authority: CN
Inventors: 吴民雄; 林长志; 洪敏雄
Original assignee: Lian Enterprises Ltd
Current assignee: Lian Enterprises Ltd
Priority date: 2001-02-16
Filing date: 2001-02-16
Publication date: 2001-12-12
Anticipated expiration: 2011-02-16

Abstract

The utility model relates to a pressure-releasing valve with pressure regulation function. The main structure of the pressure-releasing valve with pressure regulation function is that a long shaft of a valve body forms an inner accommodating chamber towards an inner margin, and one end of the inner accommodating chamber extends outward to penetrate to form a releasing opening for a water stop piston rod, an elastic piece, a regulating piston and a regulating bolt to be arranged orderly, wherein, one end of the water stop piston rod forms a water stp part which is just butted on the inner part of the releasing opening, and the other end of the water stop piston rod is provided with a shaft hole for sheathing a pull piece, while one end of the elastic piece is butted on a proper part of the water stop piston rod, and the other end of the elastic piece is butted on the opposite end of the regulating piston; the regulating bolt is screwed on one end margin of the valve body, and a water outlet connecting pipe is arranged on a water outlet part at a proper part of the side edge of the valve body.

Description

Has pressure controlled Decompression valves

The utility model is relevant with Decompression valves, is meant a kind of manual, automatic dual-purpose Decompression valves that makes things convenient for and regulate pressure release pressure arbitrarily especially.

The machinery equipment that generally must use hydraulic pressure or pneumatics is drinking machine for example, air compressor etc., all device is useful on adjusting in its mechanism, the control valve (or Decompression valves) of the control water yield or pressure, these control valves use to be gone up except easy to operate, sealing, it is also more important to end the anti-reverse effect of pressing, and general Decompression valves uses form also can be divided into two kinds of automatic or manuals, certainly, also have and have concurrently automatically and manual control valve, please referring to Fig. 4, shown in Figure 5, by prior art as can be known, a kind of possess manually and the improvement of self-relieving pressure-relief valve structure simultaneously, it mainly is a sheathed post bolt in a valve body, this post bolt one end is installed with a seal ring, and and be arranged with a conjunction base, one spring ring and a positioning ring, the other end then with a spanner Joint, its feature technology means are: form two cams on this spanner, this two cam can be embedded at pulling in the groove on the positioning ring, after the user pulls spanner downwards, can " simultaneously " impel positioning ring to move in the mode of turn spanner, space with regulation and control pressure spring circle, and then adjust the pressure release elastic force of spring ring to seal ring, make the user can control self-relieving the optimum state etc. arbitrarily.But in fact, this located by prior art not only possesses inevitable disappearance in manual use, and simultaneously, its what is called can the self-relieving state of " arbitrarily " control also be at will to have a talk about, and its disappearance is as follows in fact:

1. on manually using, because traditional Decompression valves must be pulled just adjustable inside pressure size by the mat hand tools, control is inconvenient, and tired the having of inner body leak, and does not also have the design of adjustment, so perfect inadequately.

2. on using automatically, the located by prior art what is called can be controlled the optimum state of releasing pressure automatically pressure arbitrarily, its usage mode then is to utilize this spanner to transfer positioning ring to move, in fact, this effect can't be reached at all, because the cam of this spanner be embedded at this positioning ring pull on the groove time, and utilize a shank and this post bolt pivot admittedly, therefore, this spanner can be said so and this post bolt " is fixed as one ", so, how can when being moved, this post bolt reach the action of the position of adjusting this positioning ring? in other words, the shift action of promptly commonly using creation " positioning ring " must make post bolt and spanner move down simultaneously just may finishing, start separately is not so possess the function that what is called " is regulated releasing pressure automatically pressure arbitrarily ".

3. on the non-return effect, located by prior art is to set firmly seal ring at this post bolt one end, utilize this seal ring to be against into water (pressure) mouth, and reach non-return effect, but because this seal ring is planar, the stagnant water effect that is possessed is not good, and the necessity that is improved is arranged.

Main purpose of the present utility model provides a kind of pressure controlled pressure-relief valve structure that has, and this Decompression valves possesses manually and self-relieving effect simultaneously, and easy to use.

For reaching above-mentioned purpose, the utlity model has pressure controlled Decompression valves, be to run through a room and a liberation port in one in a valve body inner edge, make a sealing piston rod can a sheathed in regular turn elastic component, one adjust piston, and one adjust bolt after, it is indoor to make that these members install respectively, spiral shell is located at this content, wherein, the sealing portion of this sealing piston rod one end, by chance be resisted against the inner place of this liberation port, the other end then provides an axis hole, can be nested with for this drawing article; And pull in this sealing piston rod appropriate location in this elastic component one end top, and the other end is resisted against the opposite end of this adjustments piston, usefulness so that this sealing portion normality be connected to this liberation port inside; And this adjustment bolt spiral shell is located at this valve body one ora terminalis place, can the spiral shell mode of moving regulate the position that this elastomer is positioned at valve body, uses the pressure of regulating pressure release, and can be manually or automated manner reach the pressure release purpose.

Further understand technological means of the present utility model and structure characteristic in depth for making, conjunction with figs. is specified in the back now:

Fig. 1 is the three-dimensional combination of a utility model schematic appearance.

Fig. 2 is the utility model part schematic perspective view.

Fig. 3 is the utility model assembled sectional view.

Fig. 4 is a three-dimensional exploded view of commonly using each assembly of Decompression valves.

Fig. 5 is an assembled sectional view of commonly using each assembly of Decompression valves.

Among the figure:

10-valve body 11-interior room

12-liberation port, 13-thread section

14-water outlet, 20-sealing piston rod

21-sealing portion, 22-positioning part

23-axis hole, 30-elastic component

40-adjustment piston, 41-outer groove

42-inner groove 50-adjustment bolt

70-the water outlet of 60-drawing article is taken over

See also Fig. 1, Fig. 2 and shown in Figure 3, the utlity model has pressure controlled Decompression valves and include: a valve body 10, a sealing piston rod 20, an elastic component 30, are adjusted piston 40, and are adjusted a bolt 50 and a drawing article 60, wherein:

This valve body 10 is pipe body shape, its major axis inwardly originates from an end and runs through toward the other end and be formed with a room 11 and a liberation port 12 in one, should in room 11 outsides and form a thread section 13, can make this sealing piston rod 20 in regular turn with this elastic component 30, adjust piston 40, and adjust bolt 50 be sheathed cooperate install and spiral shell solid in this in room 11.These liberation port 12 outboard ends form oblique cone shape, and medial extremity then forms concave arc shape; Again, these valve body 10 outer circumferential side appropriate locations provide in addition one with should in the water outlet 14 that is connected of room 11, this water outlet 14 can connect in addition to be established a water outlet and takes over 70, discharges in order to the hydraulic pressure or the air pressure that will discharge.

This sealing piston rod 20 is elongated rod shape, one end forms the sealing portion 21 and a discoid positioning part 22 of a round convex, and the other end appropriate location then provides an axis hole 23, wherein, this sealing portion 21 also can a sheathed sealing gum cover 81, just can be embedded the medial extremity at this liberation port 12.

This elastic component 30 is a pressure spring, and an end apical grafting is on this positioning part 22, and the other end is then replaced mutually with this adjustment piston 40, makes replacing at this liberation port 12 medial extremitys of these sealing portion 21 normalities in order to its compression elasticity of mat.

This adjustment piston 40 generally is the pipe box shape, and its outer rim and inner edge appropriate location are formed with an outer groove 41 and inner groove 42 respectively, just can be nested with for first water stop gel ring 82 and second water stop gel ring 83 respectively, permeates in order to waterproof.

This adjustment bolt 50 is arranged in thread section 13 places of this valve body 10, its end and this adjustment piston 40 that is positioned at valve body 10 connects, when these adjustment bolt 50 spiral shells move, can adjust the spatial position that this elastic component 30 is positioned at valve body 10, use and regulate the pressure release strength that elastic component 30 stresses on this sealing portion 21.

This drawing article 60 is a belt body, is set in axis hole 23 places of this sealing piston 20, in order to the pressure release action of this sealing portion 21 of manual control with respect to this liberation port 12.

In view of the above, the member that mat is above-mentioned as user during with this drawing article 60 of manual type drawing, can make this sealing portion 21 break away from the position of these liberation ports 12 and reaches the purpose of manual pressure release.If when the user discharges this drawing article 60, then make sealing portion 21 push against this liberation port 12 once again.When desire is used releasing pressure automatically, the mode that can utilize spiral shell to move this adjustment bolt 50 is then adjusted the pressure release elastic force size of these 30 pairs of sealing portions 21 of elastic component, so that this Decompression valves possesses manually and self-relieving function, simultaneously, more can adjust its self-relieving pressure arbitrarily.

From the above, therefore very convenient in the use, smoothly because the utility model when using manual pressure release, is this drawing article 60 of linear position drawing to be parallel to this sealing piston rod 20, and also can not cause the loss of strength on the application of force, and than the tool practicability.No matter the utility model uses the pressure release mode of automatic or manual, all can optionally adjust the pressure release elastic force size of these 30 pairs of sealing portions 21 of elastic component, and reach the effect of any adjustment, really have absolute novelty, progressive with respect to located by prior art, again, the utility model on the effect of sealing, utilize these waterproof portion that is round convex 21 sheathed sealing gum covers 81 after, and by chance be nested in this and be concave arc shape liberation port 12 medial extremitys, can have more stagnant water effect than known techniques.

Claims

1. one kind has pressure controlled Decompression valves, and it comprises a valve body, a sealing piston rod, an elastic component, an adjustment piston, an adjustment bolt and a drawing article, it is characterized in that:

This valve body major axis inwardly originates from an end and runs through toward the other end and be formed with a room and a liberation port in one, use for this sealing piston rod in regular turn with this elastic component, adjust piston, and adjust bolt be sheathed cooperate install and spiral shell solid in this room, this valve body outer circumferential side appropriate location provide in addition one with the water outlet that should interior room be connected;

This sealing piston rod one end forms a sealing portion, just can be resisted against the inner place of this liberation port, and the other end appropriate location then provides an axis hole, is nested with for this drawing article;

This elastic component one end is resisted against this sealing piston rod appropriate location, and the other end is an end that is connected to this adjustment piston, makes this liberation port medial extremity that is connected to of this sealing portion normality;

This adjustment piston generally is the pipe box shape, is positioned at this elastic component one end, is nested with a water stop gel ring on it at least;

This adjustment bolt is arranged on this valve body, and the one end contacts with this adjustment piston;

This drawing article in the form of a ring.

2. according to claim 1 have a pressure controlled Decompression valves, it is characterized in that the medial extremity of this liberation port forms concave arc shape, and this sealing portion is round convex.

3. according to claim 1 and 2 have a pressure controlled Decompression valves, it is characterized in that this sealing piston comprises a sealing gum cover, and this sealing gum cover just can overlap and be overlying in this sealing portion.

4. according to claim 1 have a pressure controlled Decompression valves, it is characterized in that a water outlet is taken in addition, connects and be located at this water outlet place.

5. according to claim 1 have a pressure controlled Decompression valves, it is characterized in that this adjustment piston outer rim and inner edge appropriate location are formed with an outer groove and inner groove respectively, just can be nested with for one first water stop gel ring and second water stop gel ring respectively.