CN104110411B - Inverse-stopping type pressure valve - Google Patents

Inverse-stopping type pressure valve Download PDF

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Publication number
CN104110411B
CN104110411B CN201310138016.4A CN201310138016A CN104110411B CN 104110411 B CN104110411 B CN 104110411B CN 201310138016 A CN201310138016 A CN 201310138016A CN 104110411 B CN104110411 B CN 104110411B
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CN
China
Prior art keywords
chamber
space
valve shaft
passive valve
oil duct
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Application number
CN201310138016.4A
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Chinese (zh)
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CN104110411A (en
Inventor
刘立群
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刘立群
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Priority to CN201310138016.4A priority Critical patent/CN104110411B/en
Publication of CN104110411A publication Critical patent/CN104110411A/en
Application granted granted Critical
Publication of CN104110411B publication Critical patent/CN104110411B/en

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Abstract

The open a kind of inverse-stopping type pressure valve of the present invention, it is provided with a passive valve shaft in a body interior, and passively valve shaft is more extended with a chamber, and a non-return device is located in the chamber of this passive valve shaft, passive valve shaft may be used to regulate the hydraulic flow of body interior, and then control hydraulic drive speed, and by non-return device is arranged in the chamber of passive valve shaft, and body volume can be reduced and reduce manufacturing cost person.

Description

Inverse-stopping type pressure valve

Technical field

The present invention is relevant with agent structure, a kind of inverse-stopping type pressure that can effectively reduce body volume and reduce manufacturing cost Power valve.

Background technology

Common hydraulic valve, as shown in Figure 6, its be mainly provided with in a main body 51 be interconnected oil-in 52, go out Hydraulic fluid port the 53, first room 54 and the second room 55, wherein, this first room 54 is installed with for a control axostylus axostyle 56, This second room 55 is then installed with for a non-return component 57, and holds in this main body 51 first room 54 and second The first flow 58 and one second runner 59 being interconnected it is respectively equipped with between room 55.This control axostylus axostyle 56 can be by outward Power drives and gradually closes this first room 54, and thus to regulate the hydraulic fluid flow rate of this oil-out 53, and make hydraulic pressure Cylinder can have the effect slowed down with buffering when propelling stroke.

But, above-mentioned common hydraulic valve, on manufacturing, due to each room not on same processing axis, is therefore adding Molding must be processed with central processing machine (MACHINE CENTER) in work manufacture, cause the time on manufacturing and cost Cannot effectively reduce.

Furthermore, more too much due to its inner flow passage of common hydraulic valve, installing is therefore caused except its volume can be made to increase Outside inconvenience and component cost increase, more can reduce the transmission certainty of hydraulic pressure because its runner is more.

In view of this, therefore how to solve the problems referred to above, be the primary problem that the present invention to be solved, therefore, this crime A person of good sense, after constantly thinking hard and study, has the generation of the present invention the most finally.

Summary of the invention

An object of the present invention, is to provide a kind of inverse-stopping type pressure valve, and it has can effectively reduce body volume and big Width reduces effect of manufacturing cost.

The two of the purpose of the present invention, are to provide a kind of inverse-stopping type pressure valve, and it has the runner group that can simplify body interior Become, and make on fluid-pressure transmission the most directly, effect smoothly.

For reaching aforesaid purpose, the present invention provides a kind of inverse-stopping type pressure valve, and it includes:

One main body, has an axial passage inside it, and this axial passage system distinguishes and has one first space and a second space, And in this main body, offer the first oil duct communicated with this first space, and second oil communicated with this second space Road;

One passive valve shaft, is located in the first space of this axial passage, and can by external force push and gradually close this second Space, and this passive valve shaft is extended with a chamber more towards this axial passage second space, separately offers on this passive valve shaft One buffer runner that can connect this first oil duct and its chamber, then offering one on the chamber of this passive valve shaft can connect This chamber interior and the through hole of this second oil duct;

One non-return device, correspondence is located in the chamber of this passive valve shaft, and this non-return device has a control piece, and this control Product is shored with unidirectional block in this buffer runner towards the port of this chamber by an elastic component the most at present in often.

And the above-mentioned purpose of the present invention and advantage, it is not difficult from the detailed description and accompanying drawing of following selected embodiment, it is thus achieved that Understand in depth.

Certainly, the present invention is on some another part, or allows different in the arrangement of another part, but selected embodiment, Then in this specification, it is described in detail.

Accompanying drawing explanation

Fig. 1 is the perspective exploded view of the present invention.

Fig. 2 is the generalized section after the present invention assembles.

Fig. 3 is the use view of the present invention, in order to show when hydraulic cylinder carry out propelling stroke and drive a lobe plate with Step this passive valve shaft of extruding gradually closes state during this main body second space.

Fig. 4 is the use view of the present invention, in order to show when this passive valve shaft completely encloses this second space, and should State when hydraulic pressure at first oil duct persistently raises and is more than the force value set by this non-return device.

Fig. 5 is the use view of the present invention, in order to show when hydraulic cylinder has been advanced into stroke end, and to carry out anti- State when stroke.

Fig. 6 is the structural representation of conventional hydraulic valve.

Detailed description of the invention

First, referring to Fig. 1 and Fig. 2, for a kind of inverse-stopping type pressure valve provided by the present invention, it is mainly by a main body 1 1, a passive valve shaft 21 and a non-return device 31 are formed, wherein:

This main body 11, has an axial passage 12 inside it, and this axial passage about 12 is distinguished and had one first sky Between 121 and a second space 122, and offer respectively in this main body 11 and communicate with this first space 121 First oil duct 13, and second oil duct 14 communicated with this second space 122, this two oil duct 13,14 supplies Connection external hydraulic source, and bottom this main body 11, it is further provided with this axial passage 12 second space 122 end of a closing Base 15, in the present embodiment, this main body 11 top also is provided with a top cover 16.

This passive valve shaft 21, is located in the first space 121 of this axial passage 12, and this passive valve shaft 21 Can be pushed by external force and towards this second space 122 direction displacement and gradually close this second space 122, and this passive valve Axle 21 is extended with a chamber 22 more towards this axial passage 12 second space 122 direction, and in this passive valve shaft 21 Chamber 22 end and this main body 11 base 15 between be provided with a compression spring 23.Separately in this passive valve shaft 21 with The outer peripheral face of this chamber 22 junction is concavely provided with several oblique trench 211, and offers one on this passive valve shaft 21 Buffer runner 212 in T font, and this first oil duct 13 and chamber 22 can be connected, and at this passive valve shaft 21 On offer one and can connect the internal through hole 221 with this second oil duct 14 of this chamber 22, separately in this passive valve shaft 21 Top be then pivoted and one rotating take turns 17.

This non-return device 31, is located in the chamber 22 of this passive valve shaft 21.In the present embodiment, this check fills Put 31 to be mainly made up of control piece 32, elastic component 33 and a bottom plug 34.Wherein this control piece 32 is used This chamber 22 inner area to be divided into space 24 on one and the once through hole 221 on space 25, and this chamber 22 In order to connect its lower space 25 and this second oil duct 14.This control piece 32 has a tapered stop section 321, And on this control piece 32, offer the fuel feed hole 322 in this upper and lower space of chamber 22 24,25 of several connection. This elastic component 33 stays on this bottom plug 34 with its one end, and the other end then supports in this control piece 32 end, and thus Make the stop section 321 of this control piece 32 in often must be shored by this elastic component 33 at present and corresponding block in this buffer stream Road 212 is towards at the port 213 of this chamber 22.When the hydraulic fluid pressure injected by this buffer runner 212 is more than During the elastic force that this elastic component 33 is provided, this control piece 32 i.e. can recess this buffer runner 212 towards this chamber 22 Port 213 at, and and then make the hydraulic oil in this buffer runner 212 must enter this chamber through such fuel feed hole 322 In the lower space 25 of room 22, then exported towards this second oil duct 14 by this through hole 221.

According to the present invention, can operate with the fltting speed controlling hydraulic cylinder, as it is shown on figure 3, when hydraulic cylinder carries out advancing row Journey and drive one pressing plate 41 synchronize extrude this passive valve shaft 21 gradually close the second space 122 in this main body 11, Now input this hydraulic oil within main body 11 because of be only capable of by such have gradually decrease the oblique trench 211 of sectional area and enter Enter this second space 122, and then regulate the hydraulic fluid flow rate that this second oil duct 14 exports, to make hydraulic cylinder in advancing row Cheng Shike has the effect of deceleration.

Furthermore, as shown in Figure 4, when this passive valve shaft 21 completely encloses this second space 122, and this first oil duct When hydraulic pressure at 13 persistently raises and is more than this force value set by non-return device 31, its hydraulic oil i.e. can be through this buffering Runner 212 and promote and move after this control piece 32, now the hydraulic oil in this buffer runner 212 i.e. obtains through such oil-feed Hole 322 enters in the lower space 25 of this chamber 22, then is exported towards this second oil duct 14 by this through hole 221, and The most i.e. can reach hydraulic cylinder and there is in time being advanced into stroke end buffering and the effect of control oil pressure regulation.

And when hydraulic cylinder has been advanced into stroke end, and during reverse stroke to be carried out, now hydraulic oil changes by this main body 11 The second oil duct 14 input and in this through hole 221 enters this chamber 22, and by the non-return work of this control piece 32 With, and make this passive valve shaft 21 must push the reset response with this compression spring 23 by hydraulic pressure in this chamber 22 and This passive valve shaft 21 is driven to start to reset;And as it is shown in figure 5, when this passive valve shaft 21 is by the hydraulic pressure in this chamber 22 When pushing the reset response with this compression spring 23 and be gradually increasing, the oblique trench 211 of this passive valve shaft 21 is to carry For hydraulic oil one throttling action entered by this second oil duct 14, and then the hydraulic pressure of i.e. this first oil duct 13 of scalable output Oil flow, and thus make hydraulic cylinder obtain the effect equally with delay startup in time carrying out reverse stroke.

And by the invention have the advantages that said structure is formed

1. the present invention is by being provided directly with non-return device 31, therefore in main body 11 in passive valve shaft 21 inside Portion is i.e. no longer necessary to space and its runner being additionally provided with being available for being installed with this non-return device 31, therefore has and can effectively reduce The advantage of main body 11 overall volume.

2. the present invention is by being provided directly with non-return device 31, therefore in main body 11 in passive valve shaft 21 inside Portion is i.e. no longer necessary to additionally process the space being available for being installed with this non-return device 31 and its runner, and thus can simplify in main body The runner composition in portion, and make the most direct on fluid-pressure transmission, smooth and easy.

3. the present invention is by being provided directly with non-return device 31, therefore in main body 11 in passive valve shaft 21 inside Portion is i.e. no longer necessary to additionally to process the space and its runner being available for being installed with this non-return device 31, therefore only need to be with in processing Simple car system can complete, and can have easy to manufacture, and the advantage reducing manufacturing cost.

4. the present invention can reach hydraulic cylinder and can have when propelling stroke by can effectively regulate this main body 11 internal hydraulic pressure There is the effect of deceleration, and the internal non-return device 31 arranged of this passive valve shaft 21 more can provide hydraulic cylinder tool in time advancing There are buffering and the effect of control oil pressure regulation, therefore can effectively prevent hydraulic cylinder from the protection of large impact occurring when being advanced into stroke end Effect.

5. the present invention is when hydraulic cylinder carries out stroke, by this buffer runner 212 can provide the first oil duct and 13 and Hydraulic oil one throttling action of the second oil duct 14, and then i.e. this hydraulic fluid flow rate of scalable, and thus make hydraulic cylinder in carrying out Stroke has effect of delay startup constantly.

The announcement of embodiment described above is in order to illustrate the present invention, and is not used to limit the present invention, therefore the changing of external form such as The displacement of change, the change of numerical value or equivalence element must be subordinate to scope of the invention.

In sum, the present invention has suitable progressive and practicality, and after detailed description above, can make to know this Item those skilled in the art understands that the present invention can reach object defined above, the real regulation having met Patent Law really, therefore inventor whence is the most in accordance with the law File an application.

Claims (3)

1. an inverse-stopping type pressure valve, it is characterised in that it includes:
One main body, has an axial passage inside it, and this axial passage is distinguished and had one first space and one second Space, and offer the first oil duct communicated with this first space in this main body, and one with this second space The second oil duct communicated;
One passive valve shaft, is located in the first space of this axial passage, and can be pushed by external force and gradually close This second space, and this passive valve shaft is extended with a chamber more towards this axial passage second space, separately passive in this Offer a buffer runner that can connect this first oil duct and this chamber on valve shaft, then offer in this passive valve shaft There is a through hole that can connect this chamber interior and this second oil duct;
One non-return device, correspondence is located in the chamber of this passive valve shaft, and this non-return device has a control piece, And this control piece shored by an elastic component at present in often and held towards this chamber in this buffer runner with unidirectional block At Kou, this control piece in order to be distinguished into space on one and once logical on space, and this chamber by this chamber interior Hole is in order to connect its lower space and this second oil duct, and it is upper and lower to offer this chamber of several connection in this control piece The fuel feed hole in space, and this control piece has a tapered stop section, this control piece in often at present by this elasticity Part is shored and with its stop section correspondence block in this buffer runner towards the port of this chamber.
Inverse-stopping type pressure valve the most according to claim 1, it is characterised in that: the chamber end of this passive valve shaft It is provided with a compression spring between end and this bottom part body.
Inverse-stopping type pressure valve the most according to claim 1, it is characterised in that: this passive valve shaft is handed over this chamber The outer peripheral face at the place of connecing is concavely provided with several oblique trench.
CN201310138016.4A 2013-04-19 2013-04-19 Inverse-stopping type pressure valve CN104110411B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310138016.4A CN104110411B (en) 2013-04-19 2013-04-19 Inverse-stopping type pressure valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310138016.4A CN104110411B (en) 2013-04-19 2013-04-19 Inverse-stopping type pressure valve

Publications (2)

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CN104110411A CN104110411A (en) 2014-10-22
CN104110411B true CN104110411B (en) 2016-08-24

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2302379Y (en) * 1997-04-25 1998-12-30 煤炭科学研究总院北京开采研究所 Single-body hydraulic prop three-purpose valve
CN1490545A (en) * 2003-08-19 2004-04-21 谦 查 Back-pressure balancing minimum pressure valves
CN102278511A (en) * 2011-05-31 2011-12-14 梅锦月 One-way pressure limit valve
CN202220932U (en) * 2011-08-13 2012-05-16 河南航天压力元件有限公司 Self-seal tensile-force release valve and its plug valve and socket valve
CN203272302U (en) * 2013-04-19 2013-11-06 刘立群 Non-return type pressure valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004014485B3 (en) * 2004-03-24 2005-09-15 Sauer-Danfoss (Neumünster) GmbH & Co OHG Pressure relief valve for hydraulic system has a sliding valve body and forms a pressure-sealed chamber for a valve spring

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2302379Y (en) * 1997-04-25 1998-12-30 煤炭科学研究总院北京开采研究所 Single-body hydraulic prop three-purpose valve
CN1490545A (en) * 2003-08-19 2004-04-21 谦 查 Back-pressure balancing minimum pressure valves
CN102278511A (en) * 2011-05-31 2011-12-14 梅锦月 One-way pressure limit valve
CN202220932U (en) * 2011-08-13 2012-05-16 河南航天压力元件有限公司 Self-seal tensile-force release valve and its plug valve and socket valve
CN203272302U (en) * 2013-04-19 2013-11-06 刘立群 Non-return type pressure valve

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