CN106051187A

CN106051187A - Manual valve

Info

Publication number: CN106051187A
Application number: CN201610203540.9A
Authority: CN
Inventors: 横枕祐; 永井清
Original assignee: CKD Corp
Current assignee: CKD Corp
Priority date: 2015-04-01
Filing date: 2016-04-01
Publication date: 2016-10-26
Anticipated expiration: 2036-04-01
Also published as: JP6228152B2; TW201704663A; CN106051187B; JP2016194353A; TWI647394B

Abstract

The present invention good operability, to provide a manual valve that enables a stable seal. The apparatus includes a valve seat 25, a valve body 4, a cover 3, a knob 7, the manual valve 1 comprising a coil spring 6 is connected to the valve body 4, is inserted through 7 knob cover 3 be those that are movably held in the axial direction, a rod 5 having an abutment portion 53 abutting on one end of the coil spring 6, provided in a portion protruding from the rod 5 knob 7 to the exterior, the valve body 4 There have an engagement means 54 to release the engagement between the knob 7 when engaged with the 7 knob when separated from the valve seat 25, the valve body 4 comes into contact with the valve seat 25, the cover 3 is end located on the opposite side of the valve seat 25 is opened, while it engaging means 54 which is brought into contact with 7 knob and the other end of the coil spring 6 is engaged with the knob 7, the overall length of the coil spring 6 and wherein the constant.

Description

Hand-operated valve

Technical field

The present invention relates to make spool move relative to valve seat control fluid by making knob rotate Hand-operated valve.

Background technology

Make spool move relative to valve seat control the manual of fluid as by making knob rotate Valve, exist first and second conventional example the most following hand-operated valve 101,201 (for example, referring to Patent documentation 1, patent documentation 2).

Figure 15 and Figure 16 is the sectional view of the hand-operated valve 101 of the first conventional example, and Figure 15 illustrates and closes Valve state, Figure 16 illustrates valve opening state.As shown in figure 15, hand-operated valve 101 is with cover cap 105 (105A, 105B) surrounds upper bar 104A and lower pole 104B, the helical spring of bar 104 106, the state of pressing member 107, is fixed on the main body 102 possessing valve seat 102c.In valve closing During state, helical spring 106 be configured at cover cap 105 upper end pressing member 107 with Being arranged between the bellying 104Aa of upper bar 104A and compressed, its counter-force is via bellying Bar 104 and spool 103 are exerted a force by 104Aa to valve seat 102c side.Thus, by spool 103 to Being obtained by helical spring 106 by pressure of valve seat 102c pressing.

From this state, rotate the knob 108 screwed togather with cover cap 105 via threaded portion 111 Time, as shown in figure 16, knob 108 rises and engages with front end engaging portion 104Ab of bar 104. The most further rotate knob 108 time, bar 104 via front end engaging portion 104Ab by knob 108 promote, and make spool 103 separate from valve seat 102c.

Figure 17 and Figure 18 is the sectional view of the hand-operated valve 201 of the second conventional example, and Figure 17 illustrates out Valve state, Figure 18 illustrates closed valve state.As shown in figure 18, hand-operated valve 201 is possessing valve seat Spool 204 is housed in the clack box 202 of 202c.At spool 204 integrally provided with valve rod 205.Valve Rod 205 inserts the lid 208 in cylinder body 206, carries out anticreep by flange 205a.At cylinder body 206 are provided with the pressure valve body 209 screwed togather with clack box 202, by rotating this pressure valve body 209 and cylinder body 206 rotate in the axial direction while moving.Helical spring 207 compression is arranged on valve rod 205 Flange 205a and the inwall 207a of cylinder body 206 between, when valve closing, helical spring 207 Counter-force via valve rod 205 and to spool 204 to valve seat 202c side exert a force.That is, by spool 204 To being obtained by helical spring 207 by pressure of valve seat 202c pressing.

When making pressure valve body 209 rotate from closed valve state, as shown in figure 17, cylinder body 206 1 Limit rotates integrally with pressure valve body 209, moves to the opposition side of valve seat 202c.Spool 204 Engaged with lid 208 by the flange 205a of valve rod 205, and move also with cylinder body 206 one Separate from valve seat 202c.Now, helical spring 207 is housed by cylinder body 206 and lid 208, Therefore the spring force of helical spring 207 will not become load when making pressure valve body 209 rotate.

[citation]

[patent documentation]

[patent documentation 1] Japanese Unexamined Patent Publication 10-122380 publication

[patent documentation 2] Japanese Patent Publication 04-40058 publication

Summary of the invention

[inventing problem to be solved]

But, the hand-operated valve 101 of the first conventional example makes spool 103 in valve closing position and valve opening position In the case of moving between putting, pressing member 107 abuts with cover cap 105, therefore helical spring 106 become the state compressed between pressing member 107 and bellying 104Aa.Its counter-force warp Bar 104, front end engaging portion 104Ab, knob 108 is acted on by bellying 104Aa.Therefore, In the case of rotating knob 108, the counter-force of helical spring 106 becomes load, it is difficult to rotate Knob 108.

Although the spring force of helical spring 207 will not become in the hand-operated valve 201 of the second conventional example Load when making pressure valve body 209 rotate, but owing to pressure valve body 209 separates with valve rod 205, Therefore being pressed in a slanted state relative to valve seat 202c by spool 204 when valve closing, sealing can Can become unstable.

The present invention is to solve that the problems referred to above point is made, its object is to provide a kind of operability Good and the hand-operated valve of stable sealing can be carried out.

[for solving the scheme of problem]

One scheme of the present invention has following structure.

(1) a kind of hand-operated valve, the spool possess valve seat, abutting or separating with described valve seat, receipts Hold knob that the cover cap of described spool screws togather with described cover cap and when valve closing by described valve The helical spring that core presses to described valve seat, described hand-operated valve is characterised by having: bar, It is linked to described spool, inserts that be retained as in described cover cap and described knob can be along axis Direction is moved, and has the abutting part that the one end with described helical spring abuts；And engaging unit, It is arranged on described bar from the described knob part prominent to outside, at described spool from described valve seat Engage with described knob in the case of separation, in the case of described spool abuts with described valve seat Release the engaging with described knob, the end being positioned at the side contrary with described valve seat of described cover cap Portion is open, and makes the other end of described helical spring abut with described knob, single in described engaging During first and described knob engages, the total length of described helical spring is certain.

In said structure, the engaging unit being arranged on the part prominent from knob of bar with pinch In the case of the engaging of hands is released from, helical spring is compressed between knob and the abutting part of bar, Bar and spool are exerted a force to valve seat direction by its spring force via abutting part, and spool is pressed on valve Seat.Thus, spool exceedingly will not be pressed on valve seat and be sealed equably.

In the case of starting to open at valve from this closed valve state, knob rotates to positive direction.Knob Move along cover cap to the opposite direction of valve seat.Before engaging unit engages with knob, spiral bullet Spring is while exerting a force bar and spool to valve seat direction, along with the movement of knob via abutting part And extend.Therefore, when bar stopped the movement on axis direction, only knob is to valve The opposite direction of seat moves.

When knob moves to the opposite direction of valve seat and engages with engaging unit, bar is single via engaging Unit and move to the opposite direction of valve seat integratedly with knob.In this case, knob and abutting part Between distance certain, therefore when the total length making helical spring is certain, knob warp By bar, spool is promoted to the opposite direction of valve seat so that it is separate from valve seat.

In the case of closing valve closing, knob rotates to opposite direction, moves along valve seat direction.Spiral Spring between knob and abutting part with stretch out state configuration, therefore bar make engaging unit with Move to valve seat direction integratedly with knob under the state of knob engaging.Therefore, engaging unit with Distance between abutting part is certain, and the total length of helical spring is certain.

When spool abuts with valve seat, valve seat direction, knob compression helical spring one edge is moved Dynamic, engaging unit releases the engaging with knob.The spring force of helical spring via abutting part by bar Exert a force to valve seat direction with spool, spool is pressed on valve seat.

So, above-mentioned hand-operated valve in the case of engaging unit is released from the engaging of knob, with The state being compressed between knob and abutting part by helical spring makes knob rotate, and is therefore rotating The load that the spring force of helical spring is formed can be produced in the case of knob.On the other hand, upper State in structure, in the case of engaging unit engages with knob, with the total length of helical spring for one Fixed state makes knob, bar, helical spring move the most in the axial direction, is therefore rotating The load that the spring force of helical spring is formed will not be produced in the case of knob.Therefore, according to upper State structure, only when starting to rotate knob from closed valve state, or rotate knob and spool is pressed When being pressed on valve seat, can produce, at knob, the load that helical spring is formed, in addition time, Knob will not produce the load that helical spring is formed, and therefore operability is good.

And, in said structure, knob is linked to spool via bar, therefore pinches in rotation Hands and in the case of valve closing, it is possible to make spool circumferentially abut with valve seat with uniform sealing force. Thus, according to said structure, it is possible to carry out stable sealing.

(2) based on the structure that (1) is recorded, it is preferred that described knob is to a side The cup-shaped of opening, described knob and described cover cap are provided with at the radial outside of described helical spring Threaded portion.

In said structure, the threaded portion being arranged between knob and cover cap is arranged on spiral bullet The radial outside of spring, therefore, it is possible to reduce the whole height of hand-operated valve.

(3) based on the structure that (1) or (2) is recorded, it is preferred that described bar has: First bar, is linked to described spool, and is configured to carry out vertically linear reciprocating motion； And second bar, it is possible to according to being linked to described first bar by axis in the way of pivoting about, And there is described engaging unit and described abutting part, described hand-operated valve has makes described knob and institute State the second bar co-rotational common rotation unit.

In said structure, bar is made up of the first bar and the second bar, when rotating knob, and second Bar rotates integrally with knob via common rotation unit.Helical spring knob be located at second With the state configuration stretched out between the abutting part of bar, therefore knob and the second bar rotate integratedly. Therefore, it is possible to alleviate the load of the situation rotating knob.On the other hand, the first bar is linked to valve Core, and it is configured to carry out vertically linear reciprocating motion.Second bar is according to allowing with axis Centered by the mode of rotation be linked to this first bar.Therefore, though the second bar and knob one Rotating, the thrust of axis direction is the most only transmitted by the first bar to spool, prevents the abrasion of spool. Thus, in said structure, it is possible to alleviate the load of the situation rotating knob and make operability good Good, and the abrasion of spool can be suppressed to maintain stable sealing.

(4) based on the structure that (3) are recorded, it is preferred that described hand-operated valve has cunning Dynamic resistance alleviates unit, this resistance to sliding alleviate cell location at described second bar relative to institute State described first bar and described second bar in the case of the first bar rotates and carry out the portion of sliding contact Point, alleviate resistance to sliding.

In said structure, by being configured in the case of the second bar rotates relative to the first bar The resistance to sliding of the part that the first bar and the second bar carry out sliding contact alleviates unit, alleviates cunning Dynamic resistance.Thus, according to said structure, even if bar is made up of the first bar and the second bar, also can Enough loads alleviating the situation rotating knob.

(5) based on the structure that any one in (1) to (4) is recorded, it is preferred that Described valve seat is arranged to linearity, and described spool is barrier film.

In said structure, by barrier film being pressed on the valve seat and valve closing linearly arranged, Therefore, it is possible to suppression whole height, and carry out the shielding of stream.

(6) based on the structure that any one in (1) to (5) is recorded, it is preferred that Described hand-operated valve has the locking unit of the rotation stoping described knob.

According to said structure, make knob rotate after arbitrary valve opening, utilizing locking single Unit stops the rotation of knob, therefore, it is possible to prevent the valve opening after adjusting from changing.

(7) based on the structure that any one in (1) to (6) is recorded, it is preferred that Described hand-operated valve has limiting unit, and this limiting unit exists by making described knob and described cover cap Abut during valve closing, limit described bar and the movement to valve seat side of the described spool.

In said structure, by making knob abut when valve closing with cover cap, limit knob to The movement in valve seat direction, prevents spool from exceedingly being pressed on the situation of valve seat.Bar and spool are not Can be to valve seat side shifting.Thus, according to said structure, it is possible to the sealing that long-time maintenance is stable.

(8) based on the structure that any one in (1) to (7) is recorded, it is preferred that Described cover cap has display unit, and this display unit is according to the described knob moved in the axial direction Position display valve opening.

In said structure, display unit is according to the position display valve opening of knob, therefore operation Person can confirm valve opening while rotating knob, and operability is good.

(9) based on the structure that any one in (1) to (8) is recorded, it is preferred that Described cover cap is radially formed and makes the spring housing of the described helical spring of collecting connect with extraneous gas Spiracle, described knob covers institute from the situation of full-shut position to the situation of full-gear State spiracle.

In said structure, from the situation of full-shut position to the situation of full-gear, it is located at The spiracle of cover cap is covered by knob, therefore, it is possible to prevent foreign body or water etc. from entering storage spiral bullet Situation in the spring housing of spring.

[invention effect]

Thus, according to said structure, using the teaching of the invention it is possible to provide a kind of operability is good and carries out stable close The hand-operated valve of envelope.

Accompanying drawing explanation

Fig. 1 is the above figure of the hand-operated valve of first embodiment of the present invention.

Fig. 2 is the AA sectional view of Fig. 1, it is shown that closed valve state.

Fig. 3 is the AA sectional view of Fig. 1, it is shown that fastening state.

Fig. 4 is the AA sectional view of Fig. 1, it is shown that full-gear.

Fig. 5 is the BB sectional view of Fig. 2.

Fig. 6 is the CC sectional view of Fig. 4.

Fig. 7 is the plane graph of main body.

Fig. 8 is the figure that common rotation unit is described.

Fig. 9 is the plane graph observed from compression face side of barrier film.

Figure 10 is the DD sectional view of the barrier film shown in Fig. 9.

Figure 11 is the figure of the first variation representing barrier film.

Figure 12 is the figure of the second variation representing barrier film.

Figure 13 is the axonometric chart observed from following side of the first bar.

Figure 14 is the sectional view of the hand-operated valve of second embodiment of the present invention, it is shown that valve closing shape State.

Figure 15 is the sectional view of the hand-operated valve of the first conventional example, it is shown that closed valve state.

Figure 16 is the sectional view of the hand-operated valve of the first conventional example, it is shown that full-gear.

Figure 17 is the sectional view of the hand-operated valve of the second conventional example, it is shown that full-gear.

Figure 18 is the sectional view of the hand-operated valve of the second conventional example, it is shown that full-shut position.

[label declaration]

1,11 hand-operated valve

3,12 cover cap

13 locking nuts (example of locking unit)

4 barrier films (example of spool)

5 bars

6 helical springs

7 knobs

10 slip rings one example of unit (resistance to sliding alleviate)

25 valve seats

29 straight line streams

32 spiracles

41b sealing

51 first bars

52 second bars

53 spring bases (example of abutting part)

54 engaging units

The two-sided wide face (example of common rotation unit) of 52e, 72a

31b end (example of limiting unit)

Bottom 71a (example of limiting unit)

Detailed description of the invention

Hereinafter, based on accompanying drawing, the embodiment of the hand-operated valve of the present invention is described.

(the first embodiment)

Fig. 1 is the above figure of the hand-operated valve 1 of first embodiment of the present invention.Fig. 2～Fig. 4 is The AA sectional view of Fig. 1, Fig. 2 illustrates that closed valve state, Fig. 3 illustrate that fastening state, Fig. 4 illustrate Full-gear.Fig. 5 is the BB sectional view of Fig. 2.Fig. 6 is the CC sectional view of Fig. 4.Fig. 7 It it is the plane graph of main body 2.Fig. 8 is the figure that common rotation unit is described.Fig. 9 is barrier film 4 The plane graph observed from compression face side.Figure 10 is the DD sectional view of the barrier film 4 shown in Fig. 9. Figure 11 is the figure of the first variation representing barrier film 4.Figure 12 is the second change representing barrier film 4 The figure of shape example.Figure 13 is the axonometric chart observed from following side of the first bar 51.

As in figure 2 it is shown, cover cap 3 is pacified by hand-operated valve 1 via barrier film 4 (example of spool) It is loaded on main body 2, is screwed with knob 7 at this cover cap 3.Main body 2 be provided with abut for barrier film 4 or The valve seat 25 separated.Bar 5 is linked to barrier film 4, inserts and is kept in cover cap 3 and knob 7 For moving in the axial direction.Bar 5 is being provided with engaging from the prominent leading section 52h of knob 7 Unit 54, is engaged and with knob 7 integratedly to valve seat with knob 7 by this engaging unit 54 Opposite direction (upper direction in figure) is mobile.Helical spring 6 (supports at the spring base 53 being located at bar 5 Connect an example in portion) and knob 7 between compression arrange, barrier film 4 is exerted a force all the time to valve seat 25 side.

As shown in Fig. 1 and Fig. 7, main body 2 is formed by metal material, in substantially straight tube shape. As in figure 2 it is shown, first port the 21, second port 24, straight line stream 29 are formed by main body 2 On coaxial, and it is provided with for the periphery, both ends along first and second port 21,24 opening And the flange 27,28 being connected with other pipe arrangement.As it is shown in fig. 7, the most integratedly Smooth fixed plate 26 is set, in the way of connecting with straight line stream 29 in fixed plate 26 in Offer peristome 26b toroidal.As shown in figures 2 and 5, valve seat 25 with straight line stream The orthogonal mode of the axis X (with reference to Fig. 7) of 29 is linearly arranged on and peristome 26b Corresponding position.As shown in Figures 5 and 6, the valve seat 25a of valve seat 25 is towards cover cap 3 Opposition side be arc-shaped be bent to form, the suppression main body 2 i.e. whole height of hand-operated valve 1 really Protect stream.As shown in figures 2 and 5, aforementioned body 2 will be by being inserted through cover cap 3 and barrier film 4 Fixing bolt (not shown) fasten the bolt hole 26a (reference being linked to fixed plate 26 respectively Fig. 7) and and clamp barrier film 4 between cover cap 3 airtightly, utilize barrier film 4 to be covered by peristome 26b Lid.

As it is shown in figure 9, barrier film 4 is in the shape corresponding with fixed plate 26, it is formed for fixing spiral shell The inserting hole 4a that bolt (not shown) is inserted.As shown in Figure 10, barrier film 4 is by film portion 41 and card Determine portion 42 to constitute.Engaging portion 42 is to be formed by the material (metal or resin) etc. with rigidity For the structure of cross section generally H-shaped, hook part 42a and department of assembly 42c are via linking part 42b Connect.As shown in FIG. 9 and 10, film portion 41 possess toroidal elastic deformation portion 41a and The held portion 41c arranged along the outer rim of elastic deformation portion 41a.Elastic deformation portion 41a in The most projecting have the sealing 41b being sealed in valve seat 25a.Further, barrier film 4 exists On the end face of the opposition side being positioned at the end face being provided with sealing 41b, it is provided with the dress for engaging portion 42 Join the heavy section 41d of portion 42c assembling.

As shown in Figure 10, film portion 41 is the structure that fluororesin is formed as film like, by viscous Tie and wait and meet the first film portion 41B of liquid level integrally provided with composition and be arranged in the first film portion 41B The opposition side connecing liquid level and the second film portion 41A formed by the elastomeric material of rubber.Figure 10 Although the first film portion 41B is formed thinner than the second film portion 41A by shown barrier film 4, but also may be used With as shown in figure 11, make the first film portion 41B thicker than the second film portion 41A, it is also possible to such as Figure 12 Shown in, first and second film portion 41B, 41A are formed as the thickness of same degree.Additionally, the One and second film portion 41B, 41A can also be non-caked and only overlapping.

As in figure 2 it is shown, held portion 41c is clamped between main body 2 and cover cap 3 by barrier film 4, And elastic deformation portion 41a covers peristome 26b.Now, there is elastic deformation in the second film portion 41A, Guarantee air-tightness.And, the first film portion 41B is formed by fluororesin, therefore, it is difficult to attachment dirt.

As shown in figures 2 and 5, cover cap 3 shape cylindrical in shape.Cover cap 3 possesses and inserts to knob 7 Insertion section 31.Insertion section 31 is arranged to path compared with cover cap 3, and cover cap 3 is being positioned at insertion The part of main body 2 side in portion 31 possesses stage portion 3a.Knob 7 in the cup-shaped to side's opening, It is covered in insertion section 31 and screws togather with cover cap 3.The cover cap 3 outer peripheral face in insertion section 31 is formed Having external screw thread 31a, knob 7 is formed at the inner peripheral surface of peristome 71 and screws togather with external screw thread 31a Female thread 71b, the radial outside at helical spring 6 is provided with threaded portion 8.Knob 7 is by being somebody's turn to do The screw thread feeding of threaded portion 8 and move relative to cover cap 3 (above-below direction in figure) in the axial direction Dynamic.

Spring housing 36, retaining hole 34, filling hole 33 are arranged on coaxial by cover cap 3.Bar 5 It is inserted through the filling hole 33 of cover cap 3, retaining hole 34, spring housing 36, additionally, insert in knob 7.Bar 5 is made up of the first bar 51 and the second bar 52.First bar 51 is linked to barrier film 4, and with The mode that can slide fills in filling hole 33.Second bar 52 is according to entering centered by axis The mode that row rotates is linked to the first bar 51, is inserted through spring housing 36, front end from retaining hole 34 Portion 52h (upper end in figure) highlights from knob 7.Bar 5 is at the leading section 52h of the second bar 52 It is provided with engaging unit 54.And, bar 5 is provided with, at the second bar 52, the bullet abutted with helical spring 6 Spring abutment 53 (example of abutting part).

Second bar 52 possesses to rotate and can insert in the way of sliding and be held in holding The large-diameter portion 52a in hole 34.Spring base 53 shape ringwise, from the valve seat being positioned at second bar 52 The end of opposition side is inserted through the second bar 52, and is retained as and utilizes large-diameter portion 52a to be formed Stage portion 52b supports the state touched.Cover cap 3 is from the end face (upper surface figure) being positioned at knob 7 side Offer the spring housing 36 bigger than the diameter of retaining hole 34, house helical spring 6.Spiral bullet Spring 6 bottom 6b in making figure abuts with spring base 53 and makes upper end 6a in figure to pinch with being located at Under the state that the bottom 71a of the peristome 71 of hands 7 abuts, it is configured at bottom 71a and spring base Between 53.Helical spring 6 in the case of engaging unit 54 engages with knob 7 slightly to compress Mode is arranged.

As shown in Figure 2 to 4, bar 5 is before closed valve state to valve opening state, the second bar 52 End 52h is prominent in the housing recess 73 of knob 7.Second bar 52 is in 52h side, leading section End face on be formed with the spiral shell for installing engaging unit 54 (in the present embodiment for screw) Pit 52d, is mounted to dismount freely by engaging unit 54.Knob 7 possesses for receiving engaging The housing recess 73 of unit 54, when valve closing, engaging unit 54 will not from knob 7 prominent and Become interference.Knob 7 is provided with for engaging unit 54 between peristome 71 and housing recess 73 The stopper 74 of engaging.

As shown in Figure 8, through at the outer surface of leading section 52h of the second bar 52 and knob 7 The inner surface in hole 72 is respectively formed with two-sided wide face 52e, 72a.Therefore, the second bar 52 is by front End portion and rear end part are held in the through hole 72 of knob 7 and the retaining hole 34 of cover cap 3, edge Axially stably move.And, the second bar 52 and knob 7 common rotation.In present embodiment In, utilize two-sided wide face 52e, 72a composition " common rotation unit ".

As shown in Fig. 2～Fig. 5, the second bar 52 will be arranged in the end (figure of main body 2 side Middle bottom) linking part 52c in the way of can rotating with the engaging being formed at the first bar 51 Groove 51d is fitted together to.Linking part 52c the end face (lower surface in figure) being positioned at main body 2 side with Slip ring is configured between inwall (bottom surface in the figure) 51dx being positioned at main body 2 side of slot 51d 10 example of unit (resistances to sliding alleviate), alleviate the second bar 52 and revolve relative to the first bar 51 The resistance to sliding of situation about turning.

The most projecting by making on the inner peripheral surface of filling hole 33 being located at cover cap 3 Guide portion 35 chimeric with the guiding groove 51f being formed at outer peripheral face along axis direction, thus One bar 51 can be configured at cover cap 3 with carrying out linear reciprocating motion in the axial direction.First bar 51 The heavy section 41d of barrier film 4 is embedded in location indentations 51a, configures barrier film at chimeric recess 51c Hook part 42a of 4.First bar 51 links with barrier film 4 with following state, will be located at location Minor diameter part 51e between recess 51a with chimeric recess 51c is in heavy section 41d and hook part 42a Between in the axial direction almost without configuring with gap, thus barrier film 4 is applied axis direction Thrust.

It should be noted that as shown in figure 13, the first bar 51 is at the end face being positioned at barrier film 4 side The press section 51g for being pressed by the sealing 41b of barrier film 4 is possessed to valve seat 25a on 51h, Stable sealing can be carried out.

As in figure 2 it is shown, be located at knob 7 peristome 71 inner peripheral surface be located at cover cap 3 O ring 9 is configured, in the feelings that knob 7 rotates relative to cover cap 3 between the outer peripheral face of insertion section 31 Resistance is produced under condition.For the situation preventing knob 7 from rotating mistakenly relative to cover cap 3.

And, as in figure 2 it is shown, in cover cap 3 relative to insertion section 31 be radially formed for Make the spiracle 32 of spring housing 36 and atmosphere.Spiracle 32 is arranged on than O ring 9 by main The position covered by knob 7 at body 2 side and in the case of the situation of closed valve state to full-gear Put.For preventing water or dust etc. from invading the situation of spring housing 36 via spiracle 32.

It follows that the action of the hand-operated valve 1 of explanation present embodiment.Hand-operated valve 1 such as Fig. 2 and Shown in Fig. 5, it is being located at the bar 5 engaging list from the prominent part (leading section 52h) of knob 7 Unit 54 from stopper 74 separate and release with in the case of the engaging of knob 7, helical spring 6 Being compressed between the bottom 71a and spring base 53 of knob 7, its spring force is via spring base 53 To valve seat 25 direction, second bar the 52, first bar 51, barrier film 4 are exerted a force, by barrier film 4 to valve Seat 25 pressing.Thus, barrier film 4 will not exceedingly be pressed relative to valve seat 25, and makes close Envelope portion 41b is sealed in valve seat 25a equably.The a length of total length of helical spring 6 now L1。

In the case of opening valve, knob 7 rotates to positive direction.Then, knob 7 passes through spiral shell The screw thread feeding in stricture of vagina portion 8 and along rightabout from cover cap 3 to valve seat 25 (opposite direction of valve seat, Upper direction in figure) mobile.Before engaging unit 54 engages with knob 7, helical spring 6 warp By spring base 53, bar 5 and barrier film 4 are exerted a force to valve seat 25 direction, and along with the shifting of knob 7 Move and extend.Therefore, when bar 5 stopped the movement on axis direction, only knob 7 Move to the opposite direction of valve seat.

As it is shown on figure 3, when knob 7 to the opposite direction of valve seat move and by stopper 74 with engage When unit 54 engages, as shown in Fig. 4 and Fig. 6, bar 5 via engaging unit 54 by knob 7 Promote, move to the opposite direction of valve seat integratedly with knob 7.In this case, engaging unit Distance between 54 and spring base 53 is certain, therefore (complete in total length L2 making helical spring 6 Long L2 is longer than total length L1 during valve closing) it is under certain state, knob 7 will be every via bar 5 Film 4 promotes to the opposite direction of valve seat so that it is separate from valve seat 25.

In the case of being closed by valve, knob 7 rotates to opposite direction, moves to valve seat 25 direction. Helical spring 6 is with the state configuration stretched out between knob 7 and spring base 53, and therefore bar 5 exists Under the state making engaging unit 54 abut with stopper 74 and to engage with knob 7, with knob 7 Move to valve seat 25 direction integratedly.Therefore, between engaging unit 54 and spring base 53 away from From necessarily, total length L2 of helical spring 6 is certain.

When barrier film 4 abuts with valve seat 25, knob 7 compression helical spring 6 is while to valve Seat 25 directions are moved, and engaging unit 54 releases the engaging with knob 7.The bullet of helical spring 6 Bar 5 and barrier film 4 are exerted a force to valve seat 25 direction by spring force via spring base 53, are pressed by barrier film 4 It is pressed on valve seat 25.Hand-operated valve 1 works as the bottom 71a of knob 7 and the phase being positioned at valve seat of cover cap 3 When the end 31b tossed about abuts, knob 7 cannot move (spiral to valve seat 25 direction further The length of spring 6 returns total length L1).Therefore, hand-operated valve 1 does not haves knob 7 to negative side The resinous first film portion 41B constituting barrier film 4 to inordinate rotation is exceedingly pressed on ratio First metal valve seat 25 hard for film portion 41B thus situation about deforming.Thus, manually Valve 1 can maintain stable sealing for a long time.

So, hand-operated valve 1 engaging unit 54 release with in the case of the engaging of knob 7, with Knob 7 is made to rotate the state that helical spring 6 is compressed between knob 7 and spring base 53, because of This is in the case of rotating knob 7, can produce the load that the spring force of helical spring 6 is formed. On the other hand, hand-operated valve 1 is in the case of engaging unit 54 engages with knob 7, so that spiral The state that total length L2 of spring 6 is certain makes knob 7, bar 5, helical spring 6 edge integratedly Axis direction moves, and therefore in the case of rotating knob 7, will not produce helical spring 6 The load that spring force causes.Therefore, only start to rotate knob 7 from closed valve state at hand-operated valve 1 Time, or when rotating knob 7 and barrier film 4 is pressed on valve seat 25, helical spring 6 produces Load acts on knob 7, and in addition time, the load that helical spring 6 produces does not acts on to be pinched Hands 7, therefore operability is good.

And, in hand-operated valve 1, bar 5 is inserted in cover cap 3 and knob 7 along axis side To holding, therefore when open and close valve action, bar 5 the most stably moves.Thus, When valve closing, it is possible to make barrier film 4 be sealed in valve seat 25 equably, it is possible to carry out stable sealing.

Here, the bar 5 of hand-operated valve 1 is made up of, when rotation is pinched the first bar 51 and the second bar 52 During hands 7, the second bar 52 is via two-sided wide face 52e, 72a (example of common rotation unit) Rotate integrally with knob 7.Helical spring 6 is at knob 7 and the spring base 53 being located at the second bar 52 Between with stretch out state configuration, therefore knob 7 rotates integrally with the second bar 52.Accordingly, it is capable to Alleviate load when rotating knob 7.On the other hand, the first bar 51 is linked to barrier film 4, and joins It is set to can carry out reciprocating linear fortune vertically by making guide portion 35 chimeric with guiding groove 51f Dynamic.Second bar 52 is linked to this first bar 51 according to the mode of the rotation allowed centered by axis. Therefore, even if the second bar 52 rotates integrally with knob 7, the first bar 51 is the most only by axis direction Thrust transmit to barrier film 4, prevent barrier film 4 (the second film portion being made up of rubber elastomeric material Abrasion 41A).Thus, in hand-operated valve 1, it is possible to alleviate situation negative rotating knob 7 Lotus and make operability good, and the abrasion of barrier film 4 can be suppressed to maintain stable sealing. And, hand-operated valve 1 moves the most in the axial direction due to the first bar 51, therefore, it is possible to will be every The state that the sealing 41b of film 4 is positioned relative to the valve seat 25a of valve seat 25 is carried out Open and close valve action.

Second bar 52 is positioned at valve seat 25 side by the spring force of helical spring 6 by hand-operated valve 1 End face press on the inwall 51dx of the first bar 51, the resistance to sliding produced in this abutment portion can Can become load when rotating knob 7.But, owing to being positioned at valve seat 25 at the second bar 52 Configuring slip ring 10 between end face and the inwall 51dx of side, therefore hand-operated valve 1 can alleviate the second bar 52 relative to the resistance to sliding produced in the case of the first bar 51 rotation.Thus, though bar 5 by The first bar 51 of being arranged to be axially moveable and be arranged to be axially moveable and can revolve The second bar 52 turned is constituted, and hand-operated valve 1 also is able to alleviate load when rotating knob 7.

But, hand-operated valve 1 adjusts valve opening by rotating knob 7, but is carrying out flow In the case of adjustment, preferably operator is able to confirm that valve opening.Therefore, the hands of present embodiment Dynamic valve 1 arranges along axis direction on the outer peripheral face of cover cap 3 and represents that the memorizer of valve opening is (aobvious Show an example of unit), according to the position relationship of the position of the open end of knob 7 with memorizer And can visuognosis valve opening.Thus, operator can confirm that valve opening rotates Knob 7, operability is good.

It should be noted that valve seat 25 is to be connected with by the first port 21 and the second port 24 The orthogonal mode of straight line stream 29 is linearly arranged, and hand-operated valve 1 is by pressing on barrier film 4 Valve seat 25 and carry out valve closing, therefore, it is possible to suppress whole height and carry out the shielding of stream.

And, hand-operated valve 1 is outside owing to threaded portion 8 is arranged on footpath relative to helical spring 6 Side, therefore, it is possible to reduce whole height.

And, hand-operated valve 1 from the situation of the full-shut position shown in Fig. 2 to the standard-sized sheet shown in Fig. 4 Till the situation of state, the spiracle 32 being located at cover cap 3 is covered by knob 7, therefore, it is possible to anti- Situation in only foreign body or water etc. enter into the spring housing 36 of storage helical spring 6.

Above-mentioned hand-operated valve 1 is arranged in the pipe arrangement that the raw material of such as medicine manufacturing line is flowed On.Medicine manufacturing line, from health aspect, carries out sterilizing to pipe arrangement termly.If making Production line entirety stops and carrying out sterilizing, then manufacture efficiency and reduce.Therefore, sterilizing is every necessarily Interval carry out.Hand-operated valve 1 is used in order to divide this interval.Such as, hand-operated valve 1 is generally In the case of in order to make raw material flow and valve opening in production line.In the case of carrying out sterilizing, Suitable for hand-operated valve 1 valve closing is marked off the interval of sterilizing by operator, makes steam or cleanout fluid etc. Flow to this interval and carry out sterilizing.At the end of sterilizing, the hand-operated valve 1 of valve closing is made to return valve opening State.Operator carries out the sterilizing in other region samely.Hand-operated valve 1 is due to operation Property good and seal stable, therefore operator efficiency can carry out sterilization processes well.

(the second embodiment)

It follows that referring to the drawings, the hand-operated valve of second embodiment of the present invention is described.Figure 14 It it is the sectional view of the hand-operated valve 11 of second embodiment of the present invention, it is shown that closed valve state.Manually The external thread part 12a of the cover cap 12 of valve 11 than the external thread part 31a of the first embodiment axially On formed long, and locking nut 13 screws togather with external thread part 12a, and these points are implemented with first The hand-operated valve 1 of mode is different, and other point equally constitutes with hand-operated valve 1.

Above-mentioned hand-operated valve 11 in addition to the action effect of the hand-operated valve 1 of the first embodiment, example As, in the case of being adjusted to desired valve opening at rotation knob 7, if with rotation lock Nut 13 and the mode that abuts with the open end of knob 7 configure, then can stop the rotation of knob 7 Turn.Thus, according to hand-operated valve 11, it is possible to prevent rotating knob 7 mistakenly and the valve that adjusts is opened The situation that degree changes.

It should be noted that the present invention is not defined to above-mentioned embodiment, it is possible to carry out various Application.

(1) such as, in addition to the gases such as steam, the flow-control of the liquid such as water or cleanout fluid The hand-operated valve 1,11 of above-mentioned embodiment can also be used.

(2) such as, in the above-described embodiment, make valve closing move to limit the decline of knob Work stops, and is set to make the upper end inwall of knob and the upper end of cover cap to support the structure touched, but also Can be set to make the bottom of knob and stage portion 3a of cover cap to the structure touched.

(3) two-sided wide face 52e, 72a in the above-described embodiment, is utilized to constitute common turning Moving cell, but such as can also be by the leading section 52h of the second bar 52 and the through hole of knob 7 72 be shaped so as to polygonal shape and constitute " common rotation unit ".And such as, also Groove can be formed in the axial direction on the outer peripheral face of the second bar 52, make radially joining of knob 7 The pin put is chimeric with this groove in the way of can sliding, and thus constitutes common rotation unit.

(4) can also be formed as promoting valve structure by the valve structure of hand-operated valve 1,11.

(5) such as, the first bar 51 can also be the shape eliminating press section 51g.

(6) in the above-described embodiment, first and second port 21,24 is configured to same Linearity, but can also be such as the second port 24 to be arranged on than the first port 21 on the lower At Fang, and the stream of inclination is utilized to be connected with the second port 24 by valve seat 25.

(7) such as, main body 2 can also be formed by the material beyond the metals such as fluororesin.Such as Even if in the case of main body 2 is formed by fluororesin, close rotating knob 7 to opposite direction During valve, also limited the movement to valve seat 25 direction owing to knob 7 abuts with cover cap 3, because of This does not haves inordinate rotation knob 7 and exceedingly barrier film 4 is pressed on valve seat so that barrier film 4 Situation with valve seat deformation.

(8) and, such as, main body 2 can also replace flange 27,28, will by insert Or be screwed into etc. and the connecting portion that is connected with other pipe arrangement is arranged at both ends.And such as, main Body 2 can also omit flange 27,28, is waited by welding and is connected with other pipe arrangement.

Claims

1. a hand-operated valve, the spool possess valve seat, abutting or separating with described valve seat, collecting Knob that the cover cap of described spool screws togather with described cover cap and when valve closing by described spool The helical spring pressed to described valve seat,

Described hand-operated valve is characterised by having:

Bar, is linked to described spool, inserts and is retained as energy in described cover cap and described knob Enough move in the axial direction, and there is the abutting part that the one end with described helical spring abuts；And

Engaging unit, is arranged on described bar from the described knob part prominent to outside, described Spool engages with described knob in the case of described valve seat separates, at described spool and described valve Seat releases the engaging with described knob in the case of abutting,

The open-ended being positioned at the side contrary with described valve seat of described cover cap, and make described spiral shell The other end of rotation spring abuts with described knob,

During described engaging unit engages with described knob, the total length of described helical spring is certain.

Hand-operated valve the most according to claim 1, it is characterised in that

Described knob is the cup-shaped to side's opening,

Described knob and described cover cap are provided with the radial outside being positioned at described helical spring Threaded portion.

3. according to the hand-operated valve described in claim 1 or claim 2, it is characterised in that

Described bar has: the first bar, is linked to described spool, and is configured to enter vertically Row linear reciprocating motion；And second bar, according to can be in the way of axis pivots about It is linked to described first bar, and there is described engaging unit and described abutting part,

Described hand-operated valve has makes described knob and described second bar co-rotational common rotation list Unit.

Hand-operated valve the most according to claim 3, it is characterised in that

Described hand-operated valve has resistance to sliding and alleviates unit, this resistance to sliding alleviate cell location in Described first bar and described second in the case of described second bar rotates relative to described first bar Bar carries out the part of sliding contact, alleviates resistance to sliding.

5. according to the hand-operated valve described in claim 1 or claim 2, it is characterised in that

Described valve seat is arranged to linearity,

Described spool is barrier film.

6. according to the hand-operated valve described in claim 1 or claim 2, it is characterised in that

Described hand-operated valve has the locking unit of the rotation stoping described knob.

7. according to the hand-operated valve described in claim 1 or claim 2, it is characterised in that

Described hand-operated valve has limiting unit, and this limiting unit is by making described knob and described cover Cover to abut when valve closing and limit described bar and the movement to valve seat side of the described spool.

8. according to the hand-operated valve described in claim 1 or claim 2, it is characterised in that

Described cover cap has display unit, and this display unit is according to move in the axial direction The position display valve opening of knob.

9. according to the hand-operated valve described in claim 1 or claim 2, it is characterised in that

Described cover cap is radially formed the spring housing making the described helical spring of collecting with outside The spiracle of gas communication,

Described knob covers described breathing from the situation of full-shut position to the situation of full-gear Hole.

Hand-operated valve the most according to claim 3, it is characterised in that

Described valve seat is arranged to linearity,

Described spool is barrier film.

11. hand-operated valves according to claim 3, it is characterised in that

12. hand-operated valves according to claim 3, it is characterised in that

13. hand-operated valves according to claim 3, it is characterised in that

14. hand-operated valves according to claim 3, it is characterised in that

15. hand-operated valves according to claim 4, it is characterised in that

Described valve seat is arranged to linearity,

Described spool is barrier film.

16. hand-operated valves according to claim 4, it is characterised in that

17. hand-operated valves according to claim 4, it is characterised in that

18. hand-operated valves according to claim 4, it is characterised in that

19. hand-operated valves according to claim 4, it is characterised in that

20. hand-operated valves according to claim 5, it is characterised in that

21. hand-operated valves according to claim 5, it is characterised in that

22. hand-operated valves according to claim 5, it is characterised in that

23. hand-operated valves according to claim 5, it is characterised in that

24. hand-operated valves according to claim 6, it is characterised in that

25. hand-operated valves according to claim 6, it is characterised in that

26. hand-operated valves according to claim 6, it is characterised in that

27. hand-operated valves according to claim 7, it is characterised in that

28. hand-operated valves according to claim 7, it is characterised in that

29. hand-operated valves according to claim 8, it is characterised in that