CN104421465B

CN104421465B - Check (non-return) valve

Info

Publication number: CN104421465B
Application number: CN201310378864.2A
Authority: CN
Inventors: 吴炫隆
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-27
Filing date: 2013-08-27
Publication date: 2017-09-22
Anticipated expiration: 2033-08-27
Also published as: CN104421465A

Abstract

A kind of check (non-return) valve, includes a valve body, a bushing, a valve member and an elastic component.The valve body has a room, a valve opening, a positioning shoulder face and an oil guiding hole, the bushing is made with the elastic material that can be compressed, it is installed in the room and is resisted against on the positioning shoulder face, and with a ring shoulder adjacent to the room, the valve member is adjacent to the bushing and is installed in the room, the elastic component is butted in the valve member side, and its elastic force provides the trend that valve member perseverance keeps abutting against towards the ring shoulder.Using the elastic force effect of the cooperation of the bushing and the valve member, and the elastic component, component does not need high-accuracy processing just can produce preferably anti-seepage effect.

Description

Check (non-return) valve

Technical field

The present invention relates to a kind of control valve for fluids, stopping more particularly to a kind of control oil circuit suitable for Oil-pressure clamping head Inverse valve.

Background technology

As shown in figure 1, a kind of existing Oil-pressure clamping head (TaiWan, China discloses No. 201130596 patent application cases of numbering), bag Containing a support 1, one be installed on fixed seat 2 inside the support 1, one be arranged at the side of fixed seat 2 oil hydraulic cylinder 3, One be installed on the first oil path control unit 4 of the side of oil hydraulic cylinder 3, one be installed on the side of oil hydraulic cylinder 3 the second oil circuit Control unit 5, the driving ring 6 and a pair that can be driven by first oil path control unit 4 and second oil path control unit 5 It is linked to the shaft-cup 7 of the driving ring 6.Coordinate ginseng Fig. 2 again, first oil path control unit 4 has an outer barrel 401, a peace The butted valve port portion 404 in the outer barrel 401 of the block bead 402 is provided loaded on the block bead 402 inside the outer barrel 401 and one Elastic component 403, the block bead 502 that second oil path control unit 5 is installed on inside the outer barrel 501 with an outer barrel 501, one And an elastic component 503 that the butted valve port portion 504 in the outer barrel 501 of the block bead 502 is provided.

Imported using pressure oil inside the fixed seat 2, drive the oil hydraulic cylinder 3 to abut against in first oil path control unit 4, and When pressure oil can be driven by first oil path control unit 4 driving ring 6 to produce displacement vertically, just can drive described in Relative to a pair of the collet chucks 8 of shaft-cup 7 produce release, with regard to that can carry out hyperphoric workpiece.When pressure oil is imported inside the fixed seat 2 again, and By second oil path control unit 5 by pressure oil to drive during the reverse displacement vertically of driving ring 6, it can just drive described Shaft-cup 7 produces beam folder relative to the collet chuck 8, and can produce clamping to workpiece.And in this state, pressure oil drive can be imported again The oil hydraulic cylinder 3 is away from first oil path control unit 4 and second oil path control unit 5, controlled using first oil circuit The elastic force of the elastic component 403 of unit 4 and the elastic component 503 of second oil path control unit 5 holds the block bead 402,502, energy First oil path control unit 4 is produced the non-return effect of closing with second oil path control unit 5, made described with keeping oil Collet chuck 8 clamps workpiece, and operation is processed with profit.

Although using the setting of first oil path control unit 4 and second oil path control unit 5, can reach expected Oil circuit controls purpose, but because the block bead 402,502 and the outer barrel 401,501 are all hard metal material, unless institute State block bead 402,502 and pass through high-accuracy processing with the valve port portion 404,504, otherwise when the block bead 402,502 is abutted against in institute When stating in valve port portion 404,504, seepage may be produced between the block bead 402,502 and the valve port portion 404,504, is entered And processing quality is influenceed, and and the high-accuracy processing in the block bead 402,502 and the valve port portion 404,504, not only processing time consuming, Also cost can be increased.

The content of the invention

Do not need Precision Machining just can produce the check (non-return) valve of preferable anti-seepage effect it is an object of the invention to provide a kind of.

The check (non-return) valve of the present invention, includes a valve body, a bushing, a valve member and an elastic component, the valve body Extend along an axis, being arranged at the room side and aperture along the axis with a room, one is less than the valve of the room Hole, one be arranged at positioning shoulder face and the oil guiding hole that with the valve opening is connected of the room with the valve opening joining place, the lining Hollow tube-shape is made with the elastic material that can be compressed for set and section is U-shaped, is installed in the room and is resisted against the positioning shoulder On face, the bushing have a positionable wall and a ring wall for being vertically connected at the positionable wall, the positionable wall have one against First end face in the positioning shoulder face, one in contrast to the first end face second end face, one connect the first end face with should The perforation of second end face, and one located at the perforation and the second end face joining place and adjacent to the ring shoulder of the room, should Ring shoulder is sheathed in the room located at the perforation and the second end face joining place, the ring wall, the valve member adjacent to the bushing and It is installed in the room, the elastic component can produce positioning relative to the valve body, and butted in the valve member side, and its elastic force is provided Valve member perseverance keeps the trend abutted against towards the ring shoulder.

The check (non-return) valve of the present invention, the check (non-return) valve is also installed on the valve body comprising one and is arranged at interior in the room Cylinder, the inner cylinder has an end wall and a barrel for being vertically connected at the end wall, and the end wall defines one jointly with the barrel Individual endoporus, the end wall, which has one, can connect the perforation of the endoporus, and the elastic component is installed in the endoporus and is resisted against the end wall, The barrel is arranged on the inside of the ring wall.

Also there is the check (non-return) valve of the present invention, the valve body one to be reversed with the room and be located at the valve opening along the axis The slide opening of opposite side and one with the slide opening is connected draws oilhole, the check (non-return) valve can also slide and be installed on the cunning comprising one In hole push away valve part and one is fixed on the valve body and provides this and push away valve part spacing plug member is produced in the slide opening, this pushes away tug Part has an energy through the valve opening and can extend to the push rod of the valve member side, and pressure oil draws oilhole from this and is introduced to the cunning Hole, this, which pushes away valve part, can promote the valve member by a detent position for being resisted against the ring shoulder, be moved to one and be away from the ring shoulder The open position in portion.

The check (non-return) valve of the present invention, the valve member is directed away from the axis to the direction of the press power of the ring shoulder of the bushing Direction, and it is oblique relative to the axis.

The beneficial effects of the present invention are：Using the elastic force effect of the cooperation of the bushing and the valve member, and the elastic component, The valve member can be made closely to compel to be pressed on the ring shoulder, need not only high-accuracy processing be carried out to the valve body and the valve member, And preferably anti-seepage effect can be produced.

Brief description of the drawings

Fig. 1 is a kind of combination section of existing Oil-pressure clamping head；

Fig. 2 is the combination section of an oil path control unit of existing this kind of Oil-pressure clamping head；

Fig. 3 is the combination section of a preferred embodiment of check (non-return) valve of the present invention；

Fig. 4 is an action schematic diagram of the preferred embodiment.

Embodiment

Below in conjunction with the accompanying drawings and embodiment the present invention is described in detail.

Refering to Fig. 3, a preferred embodiment of check (non-return) valve of the present invention, it is adaptable to the control oil circuit of the Oil-pressure clamping head of toolroom machine (Oil-pressure clamping head for coordinating ginseng Fig. 1), the check (non-return) valve includes valve body 10, bushing 20, inner cylinder 30, a valve member 40th, elastic component 50, one push away valve part 60 and a plug member 70.

The valve body 10 is set along an axis L, and is arranged at the room along axis L with a room 11, one 11 sides and aperture be less than the valve opening 12 of the room 11, one be arranged at the room 11 and the joining place of valve opening 12 positioning shoulder face 13rd, one be reversed with the room 11 and along axis L be located at the opposite side of valve opening 12 slide opening 14, one with the valve opening 12 It is connected and the oil guiding hole 15 perpendicular to axis L and one is connected with the slide opening 14 and draws oilhole perpendicular to axis L 16。

(the present embodiment can tap a rubber tree material) is made with the elastic material that can be compressed for the bushing 20, is installed on the room 11 In and be resisted against on the positioning shoulder face 13, the bushing 20 is in hollow tube-shape and section is U-shaped, and with a positionable wall 21 and one The individual ring wall 22 for being vertically connected at the positionable wall 21 and extending along axis L, the positionable wall 21 has one and is resisted against the positioning The first end face 211 in shoulder face 13, one in contrast to the first end face 211 second end face 212, one connect the first end face 211 with the perforation 213 of the second end face 212 and one located at the perforation 213 and the ring shoulder of the joining place of second end face 212 214, in the present embodiment, the section of the ring shoulder 214 is in protrusion circular arc planar, and the ring wall 22 is sheathed in the room 11.

The inner cylinder 30 is installed on the valve body 10 and is arranged in the room 11, and is opened with one corresponding to the room 11 Mouthful end wall 31 and one be vertically connected at the end wall 31 and the barrel 32 extended along axis L, the end wall 31 and the barrel 32 An endoporus 33 is defined jointly, and the end wall 31, which has one, can connect the perforation 311 of the endoporus 33, and the barrel 32 is arranged in this The inner side of ring wall 22 of bushing 20.

The valve member 40 is adjacent to the bushing 20 and is installed in the room 11 and the endoporus 33,40 pairs of valve member bushing 20 The press power F direction of ring shoulder 214 be directed away from axis L direction, and press power F is in relative to axis L Tilt 45 degree skewed.The diameter of the valve member 40 is less than the internal diameter of the endoporus 33.

The elastic component 50 is installed in the endoporus 33 and is resisted against between the end wall 31 and the valve member 40, and can be relative to this Valve body 10 produces positioning, and the elastic component 50 of the present embodiment is compression spring, and its elastic force provides the permanent holding of the valve member 40 towards the ring The trend that shoulder 214 is abutted against.

This pushes away valve part 60 and can slide and be installed in the slide opening 14, and with an energy is through the valve opening 12 and can extend to The push rod 61 of the side of valve member 40.

The plug member 70 is fixed at the opening of slide opening 14 of the valve body 10, and is provided this and pushed away valve part 60 and produced in the slide opening 14 Life is spacing.

Again as shown in figure 3, pressure oil not from the oil guiding hole 15 and this draw the state that oilhole 16 is directed in the valve body 10 Under, the valve member 40 is acted on by the elastic force of the elastic component 50, and the valve member 40 can be caused to compel to be butted on the ring shoulder 214 and positioned at one Individual detent position, that is to say, that the valve member 40 can be by the valve opening 12 and the complete estrangement of room 11.

Again as shown in figure 4, when pressure oil draws when oilhole 16 is incorporated in the valve body 10 (as depicted by the solid-line arrows) from this, meeting Valve part 60 is pushed away to this produced and push away tug effect, this pushes away valve part 60 can direction displacement along axis L towards the valve member 40 and in the slide opening 14 It is middle to slide, using the push rod 61 valve member 40 can be promoted to be moved by detent position towards an open position, and cause the valve member 40 are away from the ring shoulder 214, meanwhile, the pressure oil imported from the oil guiding hole 15 is understood along the valve opening 12, the perforation 213, is somebody's turn to do Room 11 flows, and finally leads in predetermined oil circuit (as shown in imaginary line arrow), now, the elastic component via the perforation 311 50 effects for being under pressure oil can be in confined state, and contain back and release elastic force, once the pressure oil outside the valve body 10 stops When only pumping, acted on using the elastic force of the elastic component 50, the valve member 40 can be caused to be moved back to the detent position by open position again, and Revert back to the urgent state for being butted on the ring shoulder 214 as shown in Figure 3.When the valve member 40 is in open position, the valve member 40 is utilized Diameter be less than the endoporus 33 internal diameter effect, and allow pressure oil smooth flow between the valve member 40 and the barrel 32.

Therefore, the present invention be installed on using the bushing 20 inside the room 11 of the valve body 10, and the positionable wall 21 against It is positioned on the positioning shoulder face 13 so that the valve member 40, just can be with before the positioning shoulder face 13 is urged in detent position At the closely sealed patch of ring shoulder 214, and because 40 pairs of ring shoulders 214 of the valve member press power F direction and non-parallel to the axle Line L, and tilt 45 degree skewed relative to axis L, even if permanent using will not also produce crushing to the bushing 20, and is somebody's turn to do Valve body 10, the valve member 40 need not carry out Precision Machining, so that it may reach preferably barrier properties, when the check (non-return) valve is installed on oil pressure During chuck, moreover it is possible to ensure firm clamping of the Oil-pressure clamping head to workpiece, and the processing quality of energy lifting workpieces.

Claims

1. a kind of check (non-return) valve, includes a valve body, a bushing, a valve member and an elastic component, the feature of the check (non-return) valve It is：

The valve body, extends along an axis, is arranged at the room side along the axis with a room, one and aperture is small Valve opening in the room, one be arranged at what the room was connected with the positioning shoulder face of the valve opening joining place and one with the valve opening Oil guiding hole；

The bushing, is made hollow tube-shape with the elastic material that can be compressed and section is U-shaped, is installed in the room and is resisted against On the positioning shoulder face, the bushing has a positionable wall and a ring wall for being vertically connected at the positionable wall, and the positionable wall has One be resisted against the first end face in the positioning shoulder face, one in contrast to the first end face second end face, one connect this first The perforation of end face and the second end face, and one located at the perforation with the second end face joining place and adjacent to the ring of the room Shoulder, the ring shoulder is sheathed in the room located at the perforation and the second end face joining place, the ring wall；

The valve member, adjacent to the bushing and is installed in the room；

The elastic component, can produce positioning relative to the valve body, and butted in the valve member side, and its elastic force provides valve member perseverance guarantor Hold the trend abutted against towards the ring shoulder.

2. check (non-return) valve according to claim 1, it is characterised in that：The check (non-return) valve also comprising one be installed on the valve body and Be arranged at the inner cylinder in the room, the inner cylinder have an end wall and a barrel for being vertically connected at the end wall, the end wall with The barrel defines an endoporus jointly, and the end wall, which has one, can connect the perforation of the endoporus, and it is interior that the elastic component is installed on this In hole and it is resisted against the end wall, the barrel is arranged on the inside of the ring wall.

3. check (non-return) valve according to claim 2, it is characterised in that：The valve body also has one and is reversed with the room And along the axis be located at the valve opening opposite side slide opening and one with the slide opening is connected draws oilhole, the check (non-return) valve is also comprising one It is individual can slide and be installed in the slide opening push away valve part and one is fixed on the valve body and provides this and pushes away valve part in the slide opening Spacing plug member is produced, this pushes away valve part and passes through the valve opening with an energy and can extend to the push rod of the valve member side, pressure oil Draw oilhole from this and be introduced to the slide opening, this, which pushes away valve part, can promote the valve member by a detent position for being resisted against the ring shoulder, move Move to an open position for being away from the ring shoulder.

4. the check (non-return) valve according to claim 1 or claim 2, it is characterised in that：Ring shoulder of the valve member to the bushing The direction of press power be directed away from the direction of the axis, it is and oblique relative to the axis.