CN1096856A

CN1096856A - The plate gas valve that is used for compressor

Info

Publication number: CN1096856A
Application number: CN93112716A
Authority: CN
Inventors: 杰拉尔德·帕威鲁
Original assignee: HOERBIGER VENTIL WERKE AG
Current assignee: HOERBIGER VENTIL WERKE AG; Hoerbiger Ventilwerke GmbH and Co KG
Priority date: 1993-02-15
Filing date: 1993-12-20
Publication date: 1994-12-28
Also published as: AU5317394A; ATA27093A; TW262521B; AT401550B; DE59400034D1; KR940019996A; EP0611889A1; EP0611889B1; AU663815B2

Abstract

A kind of plate gas valve that is particularly useful for compressor, it is formed by the trap 2 of valve seat 1, setting separated by a distance with it and at their plates between the two, also is flashboard 4 and at least one auxilliary plate 5.In order to simplify auxilliary plate 5 fixing in valve, trap 2 is outstanding towards valve seat 1 with its trap hub 9, and establishes an otch 11 on trap hub 9 at least.Auxilliary plate 5 is provided with fixed arm 13, and a hole is arranged in the central.Auxilliary plate 5 is placed on the trap hub 9, and by the relative movement of trap 2 with auxilliary plate 5, fixed arm 13 can mesh with the otch (11) of trap 9.

Description

The plate gas valve that is used for compressor

The present invention relates to a kind of plate gas valve that is particularly useful for compressor, it has a valve seat, a trap separated by a distance with it and be contained in valve seat and trap between plate, that is the flashboard of a control valve seat flow channel is attached troops to a unit in the auxilliary plate of this flashboard with at least one, for example elastic plate, damping plate or control panel, they are fixed with respect to trap.

The plate gas valve of this structure is known different structural type.When this valve was worked, flashboard was reciprocating between valve seat and trap, thereby makes flashboard alternately close or open the valve seat flow channel.The task of auxilliary plate is: flashboard is flexibly pressed to valve seat, so that valve is closed when pressure-less state; Make flashboard play damping function to the impact of trap; In case of necessity, the impact that the to-and-fro motion process is produced passes away.

In order correctly to carry out this task, and avoid sliding friction on guiding face as far as possible, in these known structural types, this auxilliary plate generally is fixed on the valve, great majority are positioned at the hub portion of central authorities by them, are clamped between trap and the distance ring that is located between trap and the valve.Also known structural types, their auxilliary plate is radially seen outside hub portion and is screwed on trap simply.

In known structural type, auxilliary plate fixing cumbersome in valve.Adopt distance ring to mean that this is a special member, this member is the manufacture cost height not only, and is difficult to assembling.Simultaneously, distance ring or guide ring require to occupy bigger space in valve central authorities, and therefore, it has reduced possible flow area.Directly with screw will assist plate when being fixed on the trap face cost higher because must and assemble, in addition, when the flashboard blocking at trap place, can hinder its circulation passage with many screws.

The objective of the invention is to improve and simplify hitherto known such plate gas valve, set auxilliary plate can simply and quickly be fixed in the valve under the situation of only using a small amount of part.

This purpose of the present invention reaches by following measure: trap is outstanding towards valve by the trap hub, the trap hub is provided with a radial slot at least, groove for example, there is a hole in auxilliary plate central authorities, it is bigger than the sectional area of trap hub, and have two fixed arms that stretch out from its inward flange at least, be contained on the trap hub with its center hole by assisting plate, and by trap and auxilliary plate relative movement, for example in auxilliary board plane, rotate or move auxilliary plate, fixed arm is inserted in the otch of trap hub.In air valve structure of the present invention, trap is provided with a hub, and it can fuse with trap, therefore between valve seat and trap, does not require independent distance ring or guide ring.The auxilliary plate of this structure only need place it on the trap hub when assembling, and locate by relative movement, is fixed in the valve so that reach reliably, and can makes this plate not have frictionally motion.In the trap hub, only required one or more otch, kerf width should be corresponding with the quantity of the auxilliary plate of adorn, and the manufacturing of these otch is easy.Therefore,, be characterized in that assembling is simple and convenient by structure of the present invention, tool free, and part number is few.

In most preferred embodiment of the present invention, the trap hub is designed to noncircular cross section, it has vertically the circle of extending, matching with the fixed arm of auxilliary plate scabbles or reducing, and auxilliary plate can be enclosed within on the trap hub vertically, and by rotation the auxilliary plate and the otch of trap hub is meshed.In this structure, can also make the trap hub be convenient to make, because only need less scabbling or reducing, they can be made by milling or grinding simply.

In another most preferred embodiment of the present invention, the trap hub is established otch two diametrically contraposition positions, and the hole that is located at auxilliary plate central authorities is enclosed within on the trap hub prejudicially, will assist after plate is placed on the trap hub, by in its plane, moving auxilliary plate, make the otch engagement of fixed arm and trap hub.In this case, the trap hub can keep its cylindrical cross-section, and it need only be provided with the otch with the fixed arm engagement.Certainly, auxilliary plate center hole should be more bigger, so all in all, this structure needs more bigger space.

In another kind of structural type of the present invention, the fixed arm of the auxilliary plate position in inserting trap hub otch at least can be an arch, preferably have an arbitrary function that its trend is parallel with the radius of trap hub, and the engagement of the otch of band elastic pressure ground and trap hub.In this case, fixed arm resiliently deformable in the otch of trap hub when passing so they flexibly fully support in otch, and can seamlessly be inserted wherein.Like this frictional force that produces can prevent from that fixed arm is accidental to deviate from from otch, and thereby the auxilliary plate that prevents to be fixed in the valve unnecessary loosening.

Within the scope of the invention, fixing improvement also can reach by taking following measure, promptly, in the trap hub, establish an axial bore at least, at least cut out the otch of the auxilliary plate fixed arm of packing on the axial bore, and the pin of can in the hole, packing into, after fixed arm inserts relevant otch, this pin and fixed arm engagement.Therefore, fixed arm has been used a simple pin insurance in the relevant otch of trap hub, so this auxilliary plate neither can make it fixing released, also can not rotate.

A kind of optimum structure is, pack into pin in the axial bore, otch location at the trap hub, also be provided with the otch that aligns with above-mentioned otch, fixed arm can push in this otch, at this moment, establishes on fixed arm and is approximately semicircular breach, pin deviates from that side breach engagement therewith of otch by rotation with it.In this case, only no longer require after fixed arm is packed in the otch of trap hub, pin to be pushed in the trap hub.Otch on the pin has been arranged, can under the situation of inserting pin, reinstall fixed arm.As long as the rotation pin just can be realized final fixing.

By the present invention, pin can be packed in the blind hole, and this blind hole is from valve seat one side, and valve seat is covered with pin in case it drops out.And, establish the working surface that instrument is used in the pin termination for the ease of rotating pin, for example for inserting the translot that screwdriver is used.

At last, by a kind of fixed solution of the present invention be, pin stretches out in blind hole, enters in the trap that leans against on the valve seat, and inserts in the blind hole that is located on the valve seat.Therefore, these pins also play simultaneously and make the effect of valve seat with respect to the trap location, thereby can cancel additional device, as locating stud or marking.So the pin that stretches out from the trap hub can be fixed simply, but rotatable.Therefore, assembling is than being easier to, but just needs additionally be shaped on shallow blind hole in valve seat.

Other details of the present invention and advantage are provided by the explanation of hereinafter the accompanying drawing illustrated embodiment being done.Wherein, Fig. 1 is the axial section by valve embodiment of the present invention middle part; Fig. 2 is the axial section by the trap middle part; Fig. 3 is the trap top view; Fig. 4 is an axial section ratio enlarged detailed; Fig. 5 is the section by V among Fig. 4-V line; Fig. 6 is an another kind of structural type middle part axial section ratio enlarged detailed; Fig. 7 is the section by VII among Fig. 6-VII line; And Fig. 8 is the cross section of auxilliary plate fixed arm.

As shown in Figure 1, the valve of the present invention of expression is made up of valve 1 and collector plate 2 for example, and collector plate 2 links together with valve seat 1 by central screw 3.Between valve seat 1 and trap 2, have for example can be made of plastic flashboard 4, one or more auxilliary plates 5 for example are elastic plate, damping plate or control panel.In valve seat 1, be provided with passage 6, in trap 2, be provided with runner 7 by flashboard 4 controls.Also can see a pin 8 and a trap hub 9 in valve central authorities.

As seen from Figure 2, trap 2 has a trap hub 9 that fuses with it, and trap hub 9 has an axial bore 10, and Kong Zhongke inserts among Fig. 1 with 8 pins of representing.Two pins 8 are arranged in trap hub 9 as seen from Figure 3, and they are opposed along diameter mutually.At the outward edge of trap hub 9, dot one and be designed to radially annular incision 11 of the groove of outer opening, what the position at about 90 ° of angles was shaped on trap hub 9 between two pins 8 scabbles 12, for example with milling pin or grinding.

By Figure 4 and 5 visible shown in valve in the detailed structure in trap hub 9 zones.Fig. 4 represents intermediate portion, flashboard 4 and two auxilliary plates 5 of valve seat 1 and trap 2.Visible in addition trap hub 9 and two pins 8.Two blocks of auxilliary plates 5 stretch in the otch 11 that is located at trap hub 9 with inner edges.

In addition, as seen from Figure 5, trap hub 9 also can be designed to noncircular cross section.Two are scabbled 12 radially opposite each other.Auxilliary plate 5 shown in the figure is contained on the trap hub 9, and it leans against by the fixed arm 13 that protrudes and scabbles on 12.Rotate auxilliary plate 5,, but also can galianconism 13 be inserted in the otch 11 of trap hubs 9, and when rotating about 90 °, arrive the location of pin 8 along opposite direction for example along the direction of arrow 14.Central authorities about fixed arm 13 establish half circumferential notch 15 greatly, and pin 8 inserts wherein.

When plate 5 was assisted in rotation, pin 8 outlines were carried on being.In case pin 8 aligns with semicircle breach 15, just pin is inserted breach.Insert in the blind hole 16 of valve seat 1 as shown in Figure 4 the upper end of pin 8, thereby guarantee that they can not drop out.These pins 8 can prevent that the accidental of auxilliary plate 5 from rotating, so they are fixed on their precalculated position.

According to the embodiment of Fig. 6 and 7, embodiment's dissimilarity of introducing with the front is mainly, and auxilliary plate 5 is contained on the trap hub 9 prejudicially, and the trap hub still can have circular cross-section.As seen from Figure 7, trap hub 9 is shaped on two otch 11 in the position of two diametrically contrapositions, and they are respectively by a pin 8.Press Fig. 6, pin itself is provided with otch 17 equally, and when pin 8 inserted, this otch 17 alignd with otch 11.

Can find out also that by Fig. 7 auxilliary plate 5 is contained on the trap hub 9 prejudicially by its hole.Auxilliary plate 5 is upwards moved on on the trap hub 9 from position shown in Figure 7, that is auxilliary plate 5 moves in its plane along the direction of arrow 14, thereby two fixed arms 13 and the otch 11 of trap hub 9 are meshed, and passes the otch 17 of pin 8.In case the semicircle breach 15 of fixed arm 13 is in the position of pin 8, pin 8 rotatable about 180 °, so half one of entity enters in the semicircle breach 15 on the pin 8, therefore, auxilliary plate 5 is fixing with respect to trap hub 9.

In order to rotate pin 8, at the working surface that the pin termination instrument of being shaped on is used, being in an embodiment is a translot 18 that can insert screwdriver as shown in Figure 7.Pin 8 in the blind hole of these trap hubs 9 of can packing into is covered by valve seat 1, thereby guarantees that they can not drop out.

Fig. 8 represents a kind of front elevation of fixed arm 13 of scheme, and fixed arm 13 also can be designed to slight arch, replacing plane shape, so when fixed arm 13 being pushed in the otch 11 of trap hub 9, flexiblely force together.In this way, can make auxilliary plate 5 seamlessly fixing.Therefore when elastic force is enough, can guarantee that pin 8 under any circumstance all guarantees can not drop out.

As illustrating, auxilliary plate 5 can be elastic plate, damping plate or control panel, the most often is as elastic plate, because all flexible device of the plate gas valve in every kind of modern times in fact.Wherein, not only can consider also can adopt so-called wavy spring circle with the classical elastic plate that has the elastic arm of bending its plane, they are made of the ring of sealing, and their ring section is outwards curved from board plane in the both sides of elastic plate.Also it is also conceivable that the otherwise elastic plate of distortion, the sinusoidal spring of for example so-called band cylinder arch, or cup spring also can be pressed the plate of mode fixing different types of the present invention on same valve, for example elastic plate and damping plate, they and the trap different distance of being separated by at the most.

Claims

1, a kind of plate gas valve that is particularly useful for compressor, it has a valve seat, one with it setting separated by a distance trap and be contained in valve seat and trap between plate, that is the flashboard of control valve seat flow channel, attach troops to a unit in the auxilliary plate of this flashboard with at least one, for example elastic plate, damping plate or control panel, they are fixed with respect to trap, it is characterized by: trap (2) is outstanding towards valve seat (1) by trap hub (9), at least be provided with a radial slot (11), for example groove on the trap hub (9); There is a hole in auxilliary plate (5) central authorities, and it is bigger than the cross-section area of trap hub (9), and has two fixed arms that stretch out from its inward flange (13) at least; And, fixed arm (13) is contained on the trap hub (9) with its center hole by assisting plate (5), and by the relative movement between trap (2) and auxilliary plate (5), for example in the plane of auxilliary plate (5), rotate or move and assist plate (5), fixed arm (13) is inserted in the otch (11) of trap hub (9).

2, according to the described plate gas valve of claim 1, it is characterized by: trap hub (9) is designed to noncircular cross section, and have vertically extend the circle that matches with relevant fixed arm (13) of assisting plate (5) scabble part (12) or reducing, auxilliary plate (5) can be enclosed within on the trap hub (9) vertically, and by rotation the auxilliary plate (5) and the otch (11) of trap shell (9) is meshed.

3, according to the described plate gas valve of claim 1, it is characterized by: trap hub (9) is established otch (11) in the position of two diametrically contrapositions, the hole that is located at auxilliary plate (5) central authorities is placed on the trap hub (9) prejudicially, to assist after plate (5) is placed on trap hub (9) and goes up, by in auxilliary plate (5) plane, moving auxilliary plate (5), the fixed arm (13) and the otch (11) of trap hub (9) are meshed.

4, by claim 1,2 or 3 described plate gas valves, it is characterized by: the fixed arm (13) of auxilliary plate (5) is an arch at the position that it inserts in trap hub (9) otch (11) at least, preferably have an arbitrary function that its trend is parallel with the radius of trap shell, its band elastic pressure ground inserts in the otch (11) of trap hub (9).

5, according to the described plate gas valve of one of claim 1 to 4, it is characterized by: in trap hub (9), establish an axial bore (10) at least, at least cut out the otch (11) of auxilliary plate (5) fixed arm (13) of can packing on the axial bore, the Kong Zhongke pin (8) of packing into, after fixed arm (13) inserts in the relevant otch (11), this pin (8) and fixed arm (13) engagement.

6, according to the described plate gas valve of claim 5, it is characterized by: the pin (8) in the axial bore of packing into (10), otch (11) location in trap hub (9), be provided with the otch (17) of set therewith otch (11) alignment, fixed arm (13) can push in this otch (17), at this moment, establish on fixed arm (13) and be approximately semicircular breach (15), pin (8) is by rotating its side breach (15) engagement therewith back to otch (17).

7, according to claim 5 or 6 described plate gas valves, it is characterized by: pin (8) is packed in the blind hole (16), blind hole (16) is from a side of valve seat (1), so valve seat (1) is covered with pin (8) in case it drops out, and for the ease of rotating, at the working surface that the termination instrument of being shaped on of pin (8) is used, for example be to insert the translot (18) that screwdriver is used.

8, according to claim 5 or 6 described plate gas valves, it is characterized by: pin (8) stretches out from blind hole (16), enters in the trap (2) that leans against on the valve seat (1), and inserts in the blind hole (16) that is located in the valve seat (1).