CN1268863C

CN1268863C - Valve, esp. thermostat valve for heating installation

Info

Publication number: CN1268863C
Application number: CN02118031.8A
Authority: CN
Inventors: F·加姆
Original assignee: Danfoss AS
Current assignee: Danfoss AS
Priority date: 2001-04-21
Filing date: 2002-04-19
Publication date: 2006-08-09
Anticipated expiration: 2022-04-19
Also published as: PL202944B1; CN1382932A; PL353467A1; DE10119589C1

Abstract

The present invention relates to a valve, especially a thermostat valve for heating installation, includes a valve body (11), a valve seat (12) and a fixation of a operating cap. The valve seat cooperating with a valve element (13) operated by a pin (15), passing through a packing box (14). At least one kind of two different types of the operating cap is selectively mounted on the valve. So the fixing device is set on a fixing element (18) connecting with a valve (11) detachablely. The fixing element connects with the valve (11) in two opposite orientation by 180 DEG, wherein the first fixing section (23) and the second fixing section (24) operate from outside in the first orientation and the second orientation.

Description

Valve

Technical field

The present invention relates to a kind of valve, a kind of thermostat valve of using of heater unit particularly, it comprises the fixing device of a valve body, a valve seat and an operation lid, this valve seat and a closing element acting in conjunction, and this pass valve element then can be operated by the bibcock of a stuffing box guiding.

Background technique

This operation lid is controlled this closing element with respect to the position of this valve seat and the amount of control heating liquid thus by this bibcock, heating liquid with the valve control flows through radiator.So need be fixed to the operation lid on the valve by a fixing device.Commercially available in the market most of valves all have fixing device as illustrated in fig. 1 and 2.On connection set shown in Figure 11, be provided with a faying surface 2, the base of the operation that is not shown specifically lid imports into axially by a radial force that is pressed onto fastening 3 of taper and is forced on this faying surface.The distance that faying surface 2 and being used for is operated between the free end of bibcock 4 of closing element is about 30 millimeters.A relevant example can be referring to DE 32 36 372 C2.

In a kind of connection set 5 with second kind of pattern shown in Figure 2, on fastening 7 the end face that constitutes as screw thread, be provided with faying surface 6.Locking nut with inward flange can be pressed onto the base of operation lid on the faying surface 6 by screwing on.Be about 10 millimeters apart from B between the free end of faying surface 6 and bibcock 4.A relevant example can be learnt from DE 43 44773 A1.The difference of other connection set and connection set 5 is, apart from B greatly, for example is about 20 millimeters.

In addition, DE 94 11 056 U1 have proposed the valve with a kind of operation lid of suitable two or more models of connection, and it is that an adapter is realized by connect an ABAP Adapter between valve and operation lid.So heater unit miantainers when place under repair, only need get final product with the last spare part that he must carry.He also can combine valve and operation lid that different manufactories produce.But the fact shows that unwanted annex or ABAP Adapter but often can not find in the moment of needs when certain usage mode, as being lost or using up.

Summary of the invention

The objective of the invention is to, propose a kind of valve of the above-mentioned type, this valve possesses whole means, so that a kind of in the operation lid of at least two kinds of different models selectively is installed.

Concerning aforesaid valve, this purpose is achieved in that fixing device is arranged on the fixed element that removably connects with valve body, this fixed element can be connected with valve body at two opposite orientations that differ 180 °, wherein, in first orientation with in second orientation, can operate first holding part and second holding part from the outside respectively.

At first can reach such purpose with this structure: concerning the intact valve of function, required element fixed element when the attended operation lid is always arranged in valve or on the valve, that is can not lose substantially.When being fixed to fixed cover on the valve, only need to check whether correct holding part can be from peripheral operation.If not this situation, then unclamp this fixed element from valve body.With being about to this fixed element Rotate 180 °, and be connected with valve body again.In this case, second holding part can be from peripheral operation, so the operation of another kind of model lid can be connected with valve.If the useful direction of bibcock is identical with valve shaft, then mean around an axle Rotate 180 that extends perpendicular to valve shaft °.Such rotation is easier to realize, and concerning a unskilled assembler, implements also difficulty not.

First holding part cans be compared to most second holding part to have bigger axial length and stretches in the valve body in second orientation.As mentioned above, fixing device has very big difference from the length that valve body stretches out with the model difference.At this moment guarantee that as desire bigger length can stretch in the valve body, be used for fixing operation to second holding part when covering, then in this case, when fitting operation covers, must consideration not have any interference element.Whole unwanted elements all must disappear in valve body.

A tappet and a bibcock acting in conjunction that connects this fixed element is preferably arranged.The different length that can consider holding part with this tappet cooperates.For example the time with first holding part, then available this tappet.If with second holding part with corresponding shorter length, then in most cases, the length of bibcock is enough, so the operation lid can directly affact on this bibcock.

But in a kind of preferred construction pattern, this tappet has at least two engaging position with this bibcock.Like this, in any situation, all guaranteed to use tappet work, so, in the intact valve of function, always there is this tappet.These two engaging position can make bibcock form two different length with tappet.

This is to realize with such advantageous manner: in first orientation, this tappet has first engaging position with this bibcock, and staggering in 180 ° second orientation with first orientation, then this tappet have one with second engaging position of this bibcock and with this bibcock acting in conjunction.Can realize the different length combination of bibcock and tappet in a simple manner by different engaging position.

In this case, this tappet has a Closed End at one end, and has an end face space on the other end, then is particularly advantageous.Affact on this bibcock if having the tappet of Closed End, then obtain a predetermined total length of tappet and bibcock combination.And when this tappet Rotate 180 °, this bibcock is engaged in the end face space on the tappet the other end, and then this total length has reduced by a length, and this length is the length that bibcock stretches into tappet.

In another kind of or additional design proposal, bibcock has a length variable, so also can realize the cooperation of the different length of two holding parts.

This length preferably can be transferred at least two concrete values.Like this, the length of bibcock just can cooperate the length of holding part.So need not any experience, the assembler just can find correct length.

This fixed element and valve body preferably interconnect by threaded fastener.Because threaded fastener unclamps easily and tightens again, and can between fixed element and valve body, realize enough fixing reliably.

Both sides in the circumference expansion section, fixed element preferably axially have two outside threads, wherein each outside thread and valve body internal thread acting in conjunction.In addition, this circumference expansion section has the backstop function.So fixed element is screwed in the valve body with corresponding outside thread always, till this circumference expansion section clings on the valve body.So just guaranteed the certain position of fixed element with respect to valve body.

This circumference expansion section preferably has one and is provided with externally threaded peripheral wall.This outside thread for example can be used to fix the operation lid of second kind of model.

The most handy retaining ring protection of this outside thread.This retaining ring has two advantages: on the one hand, it can protect this outside thread not to be damaged in transportation process; On the other hand, be not used for fixing operation when covering at this outside thread, this retaining ring can cause more exhilarating appearance.This retaining ring can have smooth surface, and such surface ratio outside thread seems much comfortable.

This retaining ring preferably constitutes the part of a protective cap and is connected with the guard shield of protective cap by a theoretical point of rupture.In order to screw or back out retaining ring, can use the guard shield of this protective cap.When retaining ring is used for protecting screw thread later on, then can be pressed into the resonable simply judgement knick point of protective cap in the retaining ring and leaves behind and get final product from retaining ring.

In another kind of scheme, in valve body, arranged a screw bosses, can tighten fixed element with it.In this case, valve body does not need processing.Exactly, processing is only limited to the screw bosses that can embed in the valve body.This in some structures, make easy processing some.

In this case, this screw bosses preferably has an outside thread, and this fixed element then preferably has an internal thread.Thereby in the time of valve or the radiator of being furnished with valve exist in transportation process that screw thread sustains damage dangerous and in the valve of must considering fixed element packed in the opposite direction, such structure is particularly advantageous.Otherwise when an internal thread only was set on the fixed element, then Sun Shang danger was generally much smaller.In addition, available continuous screw thread in fixed element, that is an available screw thread that two installation directions are suitable for equally.

In another kind of scheme, fixed element is connected with valve body with an inipple.Though this inipple is an adapter, be that the structure of fixed element and valve body becomes simple by using this adapter can make remaining part.

Fixed element and valve body preferably have one and prevent torsion device.Determined the mutual several angle position of valve body and fixed element in this way, so can correspondingly be positioned at the operation lid on the radiator by several angle.

Description of drawings

Below in conjunction with preferred embodiments more shown in the drawings the present invention is described.Accompanying drawing is represented:

A holding part of first kind of pattern of an operation lid of Fig. 1 prior art;

A holding part of first kind of pattern of an operation lid of Fig. 2 prior art;

Fig. 3 has two different first embodiments that connect the valve of physical dimension;

Second kind of structural type of Fig. 4 valve;

The third structural type of Fig. 5 valve;

The 4th kind of structural type of Fig. 6 valve.

Embodiment

Fig. 3 a represents the valve with a valve body 11, has arranged a valve seat 12 in valve body.Closure member 13 and valve seat 12 actings in conjunction, this closure member can be operated by a bibcock 15 by a stuffing box 14 (or other stuffing box packing) guiding.Closure member 13 remains on open position by a spring 16.Bibcock 15 is positioned at guide pipe 17 the insides.

Fig. 3 a represents a kind of structure of this valve, can fix an operation lid (not being shown specifically) on this valve, and this operation lid is fit to a holding part shown in Figure 1.Fig. 3 b represents to have an identical valve that is equivalent to fixed geometry shown in Figure 2.

A fixed element 18 is screwed in the valve body 11.For this reason, valve body 11 has an internal thread 19.This internal thread 19 meshes with first outside thread 20 of fixed element 18, and this fixed element then is arranged in an axial side of circumference expansion section 21.Another axial side in circumference expansion section 21 is provided with another outside thread 22.Shown in Fig. 3 b, when fixed element 18 was screwed in the valve body 11 in the opposite direction, then outside thread 22 was screwed in the internal thread 19.

Fixed element 18 is at a side of the first outside thread 20 side much shorter than second outside thread 22.First holding part 23 of Gou Chenging has conical surface shown in Figure 1 13 thus, and the operation lid can be fastened on this conical surface.

The step that screw thread 7 shown in Figure 2 and one are made of thickening part 28 is corresponding to constitute one second holding part 24.

Bibcock 15 is shorter than conduit 17.Conduit 17 is shorter than first holding part 23 of fixed element 18.After operating lid, can affact on the bibcock 15, be provided with one and at one end have the tappet 25 that a Closed End 23 and the other end have an end face space 27.Space 27 is designed to make bibcock 15 to put in and closely cooperates, shown in Fig. 3 b.

Conduit 17 has a thickening part 28 at its end that stretches out from valve body 11, and there are two tasks this thickening part: in the orientation shown in Fig. 3 of fixed element 18 a, and the conduit 17 in this thickening part support fixation element 18; When fixed element 18 Rotate 180s °, 28 parts of from fixed element 18, stretching out a little and constituting the step shown in Figure 2 and second holding part 24 in thickening part.

Be provided with an annular space 29 that surrounds stuffing box 14 in valve body, when fixed element 18 Rotate 180 ° and when screwing in valve body 11 shown in Fig. 3 b, the continuation 30 of fixed element 18 stretches in this annular space.

(Fig. 3 a) is transformed into another kind of fixed geometry (Fig. 3 b) and can be undertaken by so easy mode: fixed element 18 screws out from valve body 11 from a kind of fixed geometry.Mention tappet 25 from bibcock 15 simultaneously.Fixed element 18 Rotate 180s ° or reversing and with other outside thread 22 screw-in valve bodies 11 then.Tappet 25 same Rotate 180s ° also insert in the conduit 17, and promptly bibcock 15 is packed in the space 27.In this position, can be tightened in an operation lid on the outside thread 7 then.

Screw in the position at two, the backstop effect is all played in circumference expansion section 21, so when fixed element 18 screw-in valve bodies 11 reach this backstop, just guaranteed the certain position of fixed element 18 with respect to valve body 11.

In two fixed positions of fixed element, be provided with the anti-twisting equipment of operation lid in the mode that is not shown specifically, this anti-twisting equipment can be arranged on the fixed element or on the valve body 11.

In addition, can see a protective cap 31 from Fig. 3 a, it is made up of a retaining ring 32 and a guard shield 33.Retaining ring 32 and guard shield 33 interconnect by a theoretical point of rupture 34.Wherein protective cap 31 has multi-functional: do not load onto as yet when having fixed geometry shown in Fig. 3 a with valve when operation lid, protective cap 31 is used for fixing tappet 25 and protects outside

thread

7 and 22 not sustain damage; When valve during, then after protective cap 31 screws out, for example, retaining ring 32 and guard shield 33 are separated from each other at point of rupture 34 by beat protective cap 31 from the top with directed shown in Fig. 3 a of fixed element 18.Can use the outward appearance baffle plate of retaining ring 32 then as outside thread 7.This can produce more comfortable outward appearance in most cases.Outside thread 7 need be in the orientation of the fixed element shown in Fig. 3 a 18.

Fig. 4 represents a kind of structural type of modification, and wherein identical part is still continued to use identical reference character.The main distinction is that tappet is unnecessary, because bibcock 15 has been divided into two-part and has had a variable-length.

Shown in Fig. 4 a, bibcock 15 is formed from the top 15b that fixed element 18 stretches out with closing element 13 coefficient bottom 15a and one by one.In order to realize length variable, bottom 15a has the space 15c of a rectangular cross section.Top 15b has a thickening part 15d in its lower end, this thickening part is arranged like this towards bottom 15a in the angular orientation of the top 15b shown in Fig. 4 a, and the upper end of bottom 15a and the lower end of top 15b are linked to each other.

Rotate 180 ° of positions at fixed element 18 and screwed in Fig. 4 b in the valve body 11 bibcock 15 quite little length of need.Correspondingly, the top 15b of this bibcock is around its longitudinal axis 15e half-twist, and its top 15b just stretches among the 15a of bottom.So the total length of this bibcock has shortened the length of space 15c.

Fig. 4 c represents a neutral position.Space 15c half one thereon is expanded into an expansion section 15f, and the thickening part 15d of the top 15b of this bibcock is engageable in this expansion section.For bottom 15a and top 15b are locked in this position, top 15b at first rotates like this with respect to bottom 15a, shown in Fig. 4 b, that is rectangle thickening part 15d with its longitudinal extension perpendicular to the figure paper plane.In this orientation, thickening part 15d enters among the 15c of space.In case thickening part 15d arrives expansion section 15f, top 15b turns round 90 ° immediately again, so top 15b just is fixed among the 15a of bottom.

Fig. 5 represents another kind of structure, and the wherein identical part the same with function still continued to use identical reference mark.

Be provided with a screw bosses 35 in valve body 11, this lug boss for example is screwed in the internal thread 36 of valve body.Screw bosses 35 is provided with outside thread 37 in the top, and the corresponding internal thread 38 of fixed element 18 screws in this outside thread.

In the orientation of fixed element 18 shown in Fig. 5 a, the tubular extension part 30 of in valve body 11, having packed into, and in fact screw bosses 35 finish with the outer end of fixed element 18, and outside thread 7 is arranged on the outside of valve body 11.Fixed element 18 has two

steps

39,40, and they constitute second holding part 24 with outside thread 7.Tappet 25 ends from faying surface 6 apart from B be equivalent to Fig. 2 apart from B.

When fixed element 18 shown in Fig. 5 b directed, the outside thread of screw bosses 35 37 is same to screw in the internal thread 38 of fixed elements 18.Now fixed element 38 is screwed on the screw bosses 35, its end face is close on fastening 2 (is equivalent to Fig. 1).Produce a distance A in such a way between the end of fastening 2 and tappet 25, this distance is equivalent to the distance A of Fig. 1.

When fixed element 18 screwed in the valve body 11 with opposite direction, then step 39 constituted corresponding faying surface towards the end face of valve body 11.

In the embodiment of Fig. 5, tappet is also available bilateral.In the assembling of Fig. 5 a, this tappet is anchored on the bibcock 15 with its space 27; And in the assembling of Fig. 5 b, 25 of tappets place on the tappet 15 with its end face 26.

Fig. 6 represents that part is in the another kind of structural type of disassembly status.

The location of fixed element 18 represents with an arrow 41, in Fig. 6 a, and this arrow points top, directed downwards then in Fig. 6 b.

Fixed element 18 fixedly realizing with an inipple 42 in valve body 11, this inipple can be back-outed from valve body 11 with the instrument 43 that schematically illustrates among the figure.Inipple 42 has an internal thread 44, and this internal thread is screwed to and is arranged on any outside thread 45 of stuffing box 14 tops.Inipple 42 has a step 46, and this step affacts in the through hole 48 of fixed element 18 one radially inwards on the flange 47 of projection.

Embedded a pin 49 in valve body 11, this pin stretches in the hole 50 of fixed element 18.Pin 49 and hole 50 constitute a device that prevents to reverse together.

Become the structural modification shown in Fig. 6 a the structure shown in Fig. 6 b to be undertaken by following step:

At first from inipple 42 and from fixed element 18, pull out tappet 25 thus, take off fixed element 18 then with instrument 43 inipple 42 of back-outing, and from valve body 11.With fixed element Rotate 180 °, arrow 41 refers to downwards, and is inserted in the valve body 11.Fixed element 18 is provided with a section of outside thread 7 and has a diameter bigger than valve body 11, uses so can be used as backstop in two mounting points of this section.Hole 50 and pin 49 engagements.The tubular extension part 30 of fixed element 18 can enter in the annular space 29.Then inipple 42 is screwed in the valve body 11 again.It is fixed on fixed element 18 in the valve body 11 with the step 46 that it affacts on the flange 47.

Shown in Fig. 6 c, after having dismantled fixed element 18, an also available scale plate 52 that affacts clip 53 carries out the preconditioning of flow, wherein sells 49 marks that can be used as scale plate 52 and uses.

Claims

1. valve, has a valve body (11), the fixing device of a valve seat (12) and an operation lid, this valve seat and a closing element (13) acting in conjunction, this closing element then can be operated by the bibcock (15) of a stuffing box (14) guiding, it is characterized by, this fixing device is arranged on the fixed element (18) that removably connects with valve body (11), this fixed element can be connected with valve body (11) in two 180 ° opposite orientations, wherein, first holding part (23) and second holding part (24) can be respectively first directed in second orientation in operate from the outside with fixing operation and cover.

2. by the valve of claim 1, it is characterized by, first holding part (23) has the bigger axial length of ratio second holding part (24) and can stretch in the valve body (11) in second orientation.

3. by the valve of claim 1 or 2, it is characterized by a tappet (25) and bibcock (15) acting in conjunction that connects fixed element (18).

4. by the valve of claim 3, it is characterized by, tappet (25) has at least two engaging position with bibcock (15).

5. press the valve of claim 4, it is characterized by, in first orientation, tappet (25) has first engaging position with bibcock (15), and staggering in 180 ° second orientation with first orientation, then this tappet have one with second engaging position of bibcock (15) and with bibcock (15) acting in conjunction.

6. by the valve of claim 5, it is characterized by, tappet (25) at one end has a Closed End (26), then has a distolateral space (27) at the other end.

7. by the valve of claim 1, it is characterized by, bibcock (15) has transformable length.

8. by the valve of claim 7, this length-adjustable is at least two concrete values.

9. by the valve of claim 1, it is characterized by, fixed element (18) and valve body (11) interconnect by screw thread.

10. by the valve of claim 9, it is characterized by, fixed element (18) axially has two outside threads (20,22) in the both sides of circumference expansion section (21), wherein an internal thread (19) acting in conjunction of each outside thread and valve body (11).

11. the valve by claim 10 is characterized by, circumference expansion section (21) have a peripheral wall, and this peripheral wall is provided with an outside thread (7).

12. the valve by claim 11 is characterized by, outside thread (7) covers with a retaining ring (32).

13. the valve by claim 12 is characterized by, retaining ring (32) constitutes the part of protective cap (31) and is connected with a guard shield (33) of protective cap (31) by a theoretical point of rupture (34).

14. the valve by claim 9 is characterized by, and is provided with a screw bosses (35) in valve body (11), can tighten fixed element (18) with it.

15. the valve by claim 14 is characterized by, screw bosses (35) has an outside thread (37), and fixed element (18) then has an internal thread (38).

16. the valve by claim 9 is characterized by, fixed element (18) is connected with valve body (11) with an inipple (42).

17. the valve by claim 16 is characterized by, fixed element (18) has one with valve body (11) and prevents both relative devices that reverses (49,50).

18. the valve by claim 1 is characterized by, described valve is the thermostat valve of heater unit.