CN203404535U - Pneumatic joint - Google Patents

Abstract

The utility model provides a pneumatic joint. The pneumatic joint includes a regulating valve body, a clamp spring, a spring seat and a pipe sleeve; the spring seat is arranged between the clamp spring and the pipe sleeve; and a plane where the clamp spring, the spring seat and the pipe sleeve are located is vertical to the regulating valve body. When the pipe sleeve is pressed, the clamp spring and an air pipe jointly move towards the direction of the regulating valve body, and therefore, the clamp spring is pushed out from the spring seat, and the clamp spring is stretched to be opened so that the air pipe can be separated from the pipe sleeve. Compared with the prior art, and according to the pneumatic joint, the pipe sleeve can be pressed such that the air pipe can be easily separated from the pipe sleeve, and therefore, the air pipe can be prevented from being stuck in the pipe sleeve.

Description

A kind of pneumatic joint

Technical field

The utility model relates to a kind of joint, relates in particular to a kind of novel pneumatic joint.

Background technique

The modulating valve of pneumatic joint, in the automatic control of modern plant, plays a very important role.In industrial automation process control field, by accepting the control signal of regulation unit output, by power operation, remove to change the process parameters such as rate-of flow, pressure, temperature, liquid level, often adopt modulating valve as final control unit.The liquid that flowing or correct distribution and the control of gas are depended in the production of these factories, these control be no matter the exchange of energy, the reduction of pressure or simple container are reinforced, can go by modulating valve.

Yet in the prior art, it is reasonable not that its internal structure of pneumatic joint modulating valve on market arranges mostly, such as, volume is excessive, wasting space; Weight is larger; Handwheel is too little and be not easy to regulate.In addition, the spool of some pneumatic joint exposes, and easily produces dirt, causes the adjusting resistance of handwheel large.

In view of this, how designing a kind of pneumatic joint of novel structure, effectively to improve or to eliminate above-mentioned defect and deficiency, is the problem that person skilled need to solve in the industry.

Summary of the invention

The above-mentioned defect that occurred in use for pneumatic joint of the prior art, the utility model provides a kind of pneumatic joint of novelty.

According to an aspect of the present utility model, a kind of pneumatic joint is provided, comprise regulation valve body, jump ring, spring abutment and pipe box, described spring abutment is arranged between described jump ring and described pipe box, and plane and the described regulation valve body at described jump ring, spring abutment and pipe box place are perpendicular, when pressing described pipe box, described jump ring and described tracheae jointly move towards described regulation valve body direction, described jump ring is pushed out from described spring abutment, thereby described jump ring strut and makes described tracheae depart from described pipe box.

Preferably, when described tracheae inserts described pipe box, described jump ring is in elastic compression, and when described tracheae is extracted from described pipe box, described jump ring is in natural extended configuration.

Preferably, this pneumatic joint also comprises seal ring, and described jump ring is between described seal ring and described spring abutment, and described tracheae inserts described pipe box and passes described seal ring.

Preferably, described regulation valve body comprises the first valve body and second valve body, and described the first valve body adopts and is threaded with described second valve body.More preferably, the corresponding compressed gas flow of described jump ring, spring abutment and pipe box path is positioned at described the first valve body one side.

Adopt pneumatic joint of the present utility model, spring abutment is arranged between jump ring and pipe box, and plane and the regulation valve body at jump ring, spring abutment and pipe box place are perpendicular, when pressing pipe box, jump ring and tracheae jointly move towards regulation valve body direction, jump ring is pushed out from spring abutment, thereby jump ring strut and makes tracheae depart from pipe box.Than prior art, this pneumatic joint can be realized tracheae disengaging like a cork from pipe box by pressing pipe box, to avoid occurring the situation that tracheae is stuck in pipe box.

Accompanying drawing explanation

Reader, after having read the specific embodiment of the present invention with reference to accompanying drawing, will become apparent All aspects of of the present invention.Wherein,

Fig. 1 illustrates the section erection drawing according to the pneumatic joint of a mode of execution of the present utility model;

Fig. 2 illustrates another section erection drawing of the pneumatic joint in Fig. 1;

STRUCTURE DECOMPOSITION schematic diagram when the pneumatic joint that Fig. 3 (a) illustrates Fig. 1 is vertically placed;

STRUCTURE DECOMPOSITION schematic diagram when Fig. 3 (b) illustrates the pneumatic joint slant setting of Fig. 1; And

Section explosive view when each constituent elements that Fig. 4 illustrates the pneumatic joint of Fig. 1 decomposes.

embodiment

For the technology contents that the application is disclosed is more detailed and complete, can be with reference to accompanying drawing and following various specific embodiments of the present invention, in accompanying drawing, identical mark represents same or analogous assembly.Yet those of ordinary skill in the art should be appreciated that the embodiment that hereinafter provided is not used for limiting the scope that the present invention is contained.In addition, accompanying drawing, only for being schematically illustrated, is not drawn according to its life size.

Fig. 1 and Fig. 2 illustrate respectively the section erection drawing of pneumatic joint of the present utility model, Fig. 3 (a) and Fig. 3 (b) illustrate respectively pneumatic joint of the present utility model and are vertically placing and decomposing schematic representation during slant setting, and the section explosive view of Fig. 4 when each constituent elements decomposition of pneumatic joint of the present utility model is shown.Wherein, the reference character of each constituent elements is: 1-valve body LA, 2-valve body LB, 3-handwheel, 4-spool, 5-V RunddichtringO, 6-O type circle, 7-O type circle, 8-core print seat, 9-seal ring, 10-jump ring, 11-spring abutment, 12-pipe box.

With reference to Fig. 1 ~ Fig. 4, according to a mode of execution of the present utility model, it has disclosed a kind of pneumatic joint, and than prior art, this pneumatic joint can be stuck in tracheae in pipe box tightly, to prevent that tracheae from getting loose from pipe box.This pneumatic joint comprises a card tubular construction and pipe box 12.Particularly, card tubular construction consists of jump ring 10 and spring abutment 11.Spring abutment 11 is arranged between jump ring 10 and pipe box 12, when tracheae inserts from pipe box 12, in pneumatic joint under mobile pressurized gas effect, jump ring 10 and tracheae are towards pipe box 12 directions (jointly, direction shown in letter b in Fig. 1) mobile, make jump ring 10 push spring abutment 11, thereby tracheae is fixed.

In order to strengthen the sealability of pneumatic joint, this pneumatic joint also comprises seal ring 9.Jump ring 10 is arranged between seal ring 9 and spring abutment 11, and when tracheae inserts pipe box 12, this tracheae at least must be through seal ring 9.In addition, in one embodiment, this jump ring 10 comprises two reeds, and when the compressed gas of jump ring 10 pushes spring abutment 11, these two reeds fix tracheae from relative both sides respectively.For improving the Corrosion Protection of jump ring or reed, for example jump ring or reed can adopt stainless steel material to make, but have more than, are confined to this.

According to another mode of execution of the present utility model, it has also disclosed a kind of pneumatic joint, and than prior art, this pneumatic joint can be realized tracheae disengaging like a cork from pipe box by pressing pipe box, to avoid occurring the situation that tracheae is stuck in pipe box.This pneumatic joint comprises regulation valve body, jump ring 10, spring abutment 11 and pipe box 12.Spring abutment 11 is arranged between jump ring 10 and pipe box 12, and plane and the regulation valve body at jump ring 10, spring abutment 11 and pipe box 12 places are perpendicular.For example, regulation valve body is positioned at vertical direction, and jump ring 10, spring abutment 11 and pipe box 12 are positioned at substantially horizontal.When pressing pipe box 12 along the direction of B opposite direction, jump ring 10 and tracheae jointly move towards regulation valve body direction, and jump ring 10 is pushed out from spring abutment 11, thereby jump ring 10 struts and makes tracheae depart from pipe box 12.From the above, when tracheae inserts pipe box 12, jump ring 10 is in elastic compression, and when tracheae is extracted from pipe box 12, jump ring 10 is in natural extended configuration.

In addition, the regulation valve body of this pneumatic joint comprises that the first valve body 1 and second valve body 2, the first valve body 1 adopt and are threaded with second valve body 2.Further, jump ring 10, spring abutment 11 and the corresponding compressed gas flow of pipe box 12 path are positioned at first valve body 1 this side.

According to another mode of execution of the present utility model, it has also disclosed a kind of pneumatic joint, and than prior art, the handwheel 3 of this pneumatic joint carries out self-locking when being pressed, and switch to adjustment state while drawing on quilt, so that the upper-lower position free adjustment to spool 4.In addition, the self-locking state of this handwheel 3 locks without nut, has saved cost of parts.Preferably, this pneumatic joint is angular convolution rotation structure always, and second valve body 2 is corresponding to air flow inlet (that is, pressurized gas enters along direction A), and the first valve body 1 is corresponding to flow outlet (that is, pressurized gas flows out along direction B).

This pneumatic joint comprises the first valve body 1, handwheel 3 and spool 4.Handwheel 3 is positioned at the top of the first valve body 1, spool 4 can move up and down in the inside cavity of the first valve body 1, the below of handwheel 3 comprises snap fit, the top of the first valve body 1 comprises buckle, when pressing handwheel 3 towards the first valve body 3 direction motion, the self-locking handwheel 3 thereby snap fit and buckle are interlocked.From the above, when upper handle wheel 3 is during away from the first valve body 1, handwheel 3 becomes free adjustment state from self-locking state.

In one embodiment, the outer surface of spool 4 comprises multi-turn screw thread, and handwheel 3 band movable valve plug 4 rotations, make spool 4 can move up and down in the inside cavity of the first valve body 1.In addition, this pneumatic joint also comprises core print seat 8.Core print seat 8 is fixedly connected with the first valve body 1, and core print seat 8 adopts with spool 4 upper-lower position that is threaded regulating spool 4.

According to a mode of execution more of the present utility model, it has also disclosed a kind of pneumatic joint, than prior art, the handwheel of this pneumatic joint can drive Spool rotating, and then utilize the upper-lower position that is threaded regulating spool of core print seat and valve core chamber, by the space size that changes above-mentioned airtight vestibule, carry out the airspeed of easy adjustment pneumatic joint.

This pneumatic joint comprises the first valve body 1, second valve body 2, handwheel 3 and spool 4.The first valve body 1 is positioned at the top of second valve body 2, and handwheel 3 is positioned at the top of the first valve body 1.Spool 4 and the first valve body 1 surround an airtight vestibule R.Spool 4 can move up and down in the inside cavity of the first valve body 1, changes the space size of airtight vestibule R by moving valve core 4, thereby regulates the airspeed of pneumatic joint.For example, when handwheel 3 band movable valve plugs 4 move upward, it is large that the space of airtight vestibule R becomes, and airspeed is relatively very fast; When handwheel 3 band movable valve plugs 4 move downward, the space of airtight vestibule R is compressed, and airspeed is relatively slack-off.

In addition, second valve body 2 also comprises the first vestibule P, and air-flow enters airtight vestibule R via the first vestibule P.Pneumatic joint also comprises V-shaped seal ring 5 and the second vestibule Q, and air-flow arrives V-shaped seal ring 5 via the second vestibule Q, thereby the umbrella shape of V-shaped seal ring 5 partly struts and stops and prevent that air-flow from leaking.Hence one can see that, when pressurized gas enters second valve body 2 from direction A, initially be divided into two air-flow paths, the first air-flow path is that gas flows out from direction B via vestibule P, airtight vestibule R, vestibule S and vestibule T successively, and the second air-flow path is that gas is via vestibule Q arrival V-shaped seal ring 5, but because V-shaped seal ring 5 has stopped air-flow, move on, thereby air-flow finally all flows to Way out B by above-mentioned the first air-flow path from Way in A.

In an embodiment, this pneumatic joint also comprises jump ring 10, spring abutment 11, pipe box 12 and the 3rd vestibule T.Jump ring 10 and spring abutment 11 are for tracheae is fixed, and the 3rd vestibule T is arranged at the side of the first valve body 1, from the air-flow of airtight cavity R, via the 3rd vestibule T, from the tracheae in pipe box 12, flow out.

Those skilled in the art is to be understood that, although the respective embodiments described above of the present utility model all lay particular emphasis on solution separately for technical problem and obtain different technique effects, but the constituent elements in a mode of execution or structure characteristic are still applicable to another mode of execution.For example, can realize in the pneumatic joint of handwheel self-locking, handwheel is positioned at the top of the first valve body, spool can move up and down in the inside cavity of the first valve body, the below of handwheel comprises snap fit, the top of the first valve body comprises buckle, when pressing handwheel towards the first valve body direction motion, and the self-locking handwheel thereby snap fit and buckle are interlocked.And the above-mentioned technical characteristics relevant to handwheel still can be contained in for realizing in the pneumatic joint of airspeed adjusting, to handwheel is carried out to self-locking when airspeed reaches expection.

Above, describe the specific embodiment of the present invention with reference to the accompanying drawings.But those skilled in the art can understand, without departing from the spirit and scope of the present invention in the situation that, can also do various changes and replacement to the specific embodiment of the present invention.These changes and replacement all drop in the claims in the present invention book limited range.

Claims (2)

1. a pneumatic joint, it is characterized in that, described pneumatic joint comprises regulation valve body, jump ring (10), spring abutment (11) and pipe box (12), described spring abutment (11) is arranged between described jump ring (10) and described pipe box (12), and described jump ring (10), plane and the described regulation valve body at spring abutment (11) and pipe box (12) place are perpendicular, when pressing described pipe box (12), described jump ring (10) and tracheae jointly move towards described regulation valve body direction, described jump ring (10) is pushed out from described spring abutment (11), described jump ring (10) thus strut and make described tracheae depart from described pipe box (12).

2. pneumatic joint according to claim 1, it is characterized in that, when described tracheae inserts described pipe box (12), described jump ring (10) is in elastic compression, when described tracheae is extracted from described pipe box (12), described jump ring (10) is in natural extended configuration.

3. pneumatic joint according to claim 1, it is characterized in that, described pneumatic joint also comprises seal ring (9), and described jump ring (10) is positioned between described seal ring (9) and described spring abutment (11), and described tracheae inserts described pipe box (12) and passes described seal ring (9).

4. pneumatic joint according to claim 1, is characterized in that, described regulation valve body comprises the first valve body and second valve body, and described the first valve body adopts and is threaded with described second valve body.

5. pneumatic joint according to claim 4, is characterized in that, described jump ring (10), spring abutment (11) and the corresponding compressed gas flow of pipe box (12) path are positioned at described the first valve body one side.

Images