CN1727739A

CN1727739A - Butterfly valve

Info

Publication number: CN1727739A
Application number: CNA2005100687999A
Authority: CN
Inventors: 梁成云
Original assignee: SOOYOUNG MACHINERY CO Ltd
Current assignee: SOOYOUNG MACHINERY CO Ltd
Priority date: 2004-07-26
Filing date: 2005-05-11
Publication date: 2006-02-01
Also published as: KR100487930B1; JP2006038206A

Abstract

The invention relates to a butterfly valve. The butterfly valve comprises: a body which contains a disk sheet and the flow path of a vertical space part; a restraint deice which contains a disk, is connected with the lower end of an operation shaft arranged in the vertical space part and having vertical internal shaft and external shaft through a cam connecting device, and changes the closed position through the cam connected with the internal shaft; and a switching device for turning on or off the restraint device, wherein the cam connecting device comprises: at least one pair of integration grooves which are symmetrically arranged on the lower two sides of the external shaft; a connecting body which is fixed through welding or bolts, has the back clinging closely to the front of the disk, and internally has a cam assembly part opening on the upper, lower and inner sides for the cam fixed on the lower part of the internal shaft and a concave part opening on the front for the insertion of the operation shaft; and an external shaft fixing plate which is fixed on a support through a support fixing device, wherein an opening long hole capable of inserting into the integration grooves being formed on the back of the external shaft fixing plate, and the two ends of the long hole inserting into the concave part from the front to the back and movably inserting into the integration grooves of the external shaft.

Description

Fly valve

Technical field

The present invention relates to fly valve, especially relate to feasible comprising and are more prone to the operation axle of outer shaft and being connected of disk, thus the fly valve of raising packaging efficiency.

Background technique

Usually, so-called fly valve is to utilize disk to cut off the valve of stream, is widely used in limit fluid or high-temperature vapour and various chemical substances etc.

The present invention is the structure-improved of fly valve that the applicant has been applied for, below earlier explanation the applicant at the fly valve of first to file.

As an embodiment, Korean Utility Model is announced No. 292440 " hard tinsel (solid metalsheet) fly valve " and is disclosed.

Valve body among this embodiment comprises: the body that comprises the stream with disc and vertical space portion; Be arranged at this vertical space portion, comprise by (being designated hereinafter simply as ' cam connection set ') such as curve eccentric cam, curve eccentric cam guiding, curve eccentric cam covers and be connected in vertical inside and outside axle lower end, when closing, move to the restricting means of the disk of closed position by this rotation that is connected in the curve cam (being designated hereinafter simply as ' cam ') of interior axle; Be arranged at this vertical inside and outside axle top, the handle of this restricting means of switch (HANDLE) axle, wrom tooth (WORM GEAR), worm gear (WORM WHEEL), guide cover (GUIDE CAP), guide rib (GUIDE FLANGE), guide plate (hereinafter to be referred as ' switch gears ') such as (GUIDE PLATE).

That is, the main structure of this switch gear comprises: by wrom tooth (WORM GEAR) rotation of this handle shaft, and the worm gear (WORM WHEEL) that can set firmly rotatably with interior axle interlock; Can rotate with the outer shaft interlock, its two end part have the guide plate of circular shaft; Be arranged at the bottom of the worm gear (WORMWHEEL) on guide plate top, its underpart is formed with the guide cover of a projection; And the bottom that is arranged at this guide plate, its top is formed with the guide rib of oblique slot.

Hence one can see that, utilizes this switch gear can rotate inside and outside axle simultaneously, perhaps axle in the rotation only, thereby the disposable pass of the rotation closed channel by disk, and axle and disk is moved near to disc side in the rotation only afterwards, thus close closed channel fully.

And this cam connection set comprises: support the bottom of this outer shaft by separating toward both sides, be fixed on the curve eccentric cam guiding that the both sides guiding on the disk constitutes separately; And can seal the curve eccentric cam cover of the opening portion, rear of this both sides guiding.

Particularly the upper and lower part of this both sides guiding is formed with the insertion end projection that is inserted in the groove that is formed on this outer shaft.

Go into to be fixed with the interior axle and outer shaft of curve cam at the spatial interpolation between this both sides guiding after, fix this curve eccentric cam cover again, thereby finish being connected of inside and outside axle and disk.

But,, then can run into very big difficulty on the amplitude adjusted problem between guiding because the both sides guiding is disconnected from each other if utilize the cam connection set of this structure to connect inside and outside axle and disk.

That is to say, insert the projection on the guiding of both sides and realize connection, should keep the form error of the precision that is formed at the projection between the guiding of both sides at the groove part that is formed at this outer shaft bottom, therefore, a lot of times of waste on the guiding assembly working of both sides.

And,, also wasted a lot of times on the problem at the center of the inside and outside axle of aligning during assembling along with the both sides guiding is installed on the disk.

Summary of the invention

The present invention is the structure that improves in the existing problem points of the valve body of first to file in order to overcome, its purpose is to provide by having the single outer axis fixing plate of slotted hole, the outer shaft that constitutes the operation axle of valve body is fixed on the disk connecting body, makes the fly valve that is more prone to that is connected of the operation axle that comprises outer shaft and disk.

And another object of the present invention is, the operation axle is connected the state that is arranged on the cam connection set, the position of the outer axis fixing plate of bolt adjustment by being arranged on outer axis fixing plate both sides, thus be easy to be provided with center by inside and outside operation axle that constitutes.

In order to reach above-mentioned purpose, the invention provides a kind of fly valve, comprising: the body that comprises stream with disc and vertical space portion; Comprise the lower end that is connected in the operation axle that is arranged at this vertical space portion and constitutes by vertical inside and outside axle by more than one cam connection set, change the restricting means of the disk of the position when closing by at least one cam that is connected with axle in this; Be arranged at the top of this vertical inside and outside axle, the switch gear of this restricting means of switch, its characteristics are that this cam connection set comprises: at least one pair of engagement groove that is symmetricly set in these both sides, outer shaft bottom; Connecting body, fix by welding or bolt combination, make its back side be close to the front of this disk, inside has open upper and lower and inboard and be mounted on the cam assembly department of the cam of axle bottom this in, and has the positive operation spool of can being inserted by at least one open depressed part; The rear is formed with the slotted hole that can be inserted in the opening in this engagement groove, be inserted into the rear from the place ahead of this depressed part, and two ends of this slotted hole is inserted in two engagement grooves of outer shaft slidably, are fixed in the outer axis fixing plate of support by bracket fixing device.

As mentioned above, valve body provided by the invention can connect operation axle and the disk that comprises outer shaft easily by assembling single outer axis fixing plate and connecting body, thereby improves assembling effect and producibility.

And, be easy to adjust the center of the operation axle that constitutes by inside and outside axle, make valve body initial assembling and use in keep in repair and be more prone to.

Be described in detail below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is for being equipped with the valve body sectional drawing of cam connection set among the present invention;

Fig. 2 is the amplification stereogram of connection set among the present invention;

Fig. 3 is the exploded perspective view of connection set among the present invention;

Fig. 4 is along the sectional drawing of A-A line among Fig. 2;

Fig. 5 is the B portion enlarged view among Fig. 1;

Fig. 6 is other embodiment's of polytetrafluoroethylene ring fixing device among the present invention structural representation.

Embodiment

Fig. 1 is for having the sectional drawing of the valve body of cam connection set among the present invention, Fig. 2 is the amplification stereogram of connection set among the present invention, and Fig. 3 is the enlargement decomposition of connection set among the present invention.

Fly valve among the present invention comprises: body 1, and this body 1 comprises the stream 11 with disc 12 and vertical space portion 13; Restricting means 2, this restricting means 2 comprises disk 24, it is connected in by more than one cam connection set 3 and is arranged on this vertical space portion 13 and by vertical inside and outside

axle

22,23 constitute from the lower end of moving axis 21, and change position when closing by at least one cam 221 that is connected with axle in this; Switch gear 4, it is arranged at the top of this vertical inside and outside

axle

22,23, this restricting means 2 of switch.

In this fly valve, this cam connection set 3 comprises: at least one pair of engagement groove 31 is symmetricly set in the both sides, bottom of this outer shaft 23; Connecting body 32, fix by welding or bolt, make its back side fit tightly in the front of this disk 24, inside has open upper and lower and inboard and be mounted on the cam assembly department 321 of the cam of axle 22 bottoms this in, and has this cam assembly department 321 and positively can be inserted operation spools 21 by open more than one depressed part 322; Outer axis fixing plate 33, the rear is formed with the slotted hole 331 of the opening that can be inserted in this a pair of engagement groove 31, rearward insert from the place ahead of this depressed part 322, two ends 332 of this slotted hole 331 are inserted in a pair of engagement groove 31 of outer shaft slidably, and outer axis fixing plate 33 is fixed in support by bracket fixing device 333.

Particularly this bracket fixing device 333 comprises: a plurality of through holes 334 that are formed at these outer axis fixing plate 33 both sides; Be arranged at these depressed part 322 both sides with these through hole 334 corresponding locational keyholes 335; And connect and to be arranged at this through hole 334, the bolt of concluding with this keyhole 335 336.

And this switch gear 4 comprises: shell 41, be arranged at body 1 top, and make that this vertical inside and outside

axle

22,23 is outstanding to inside; Worm gear 42 is fixed in this top of interior 22, rotates by the worm screw (WORM) 422 of handle 421; Swingle 43, the top of outer shaft 23 is rotated and liftably is arranged in interlock, and comprises two outstanding nails 431; Outstanding rail 44 is arranged at around the bottom of this shell 41, rotatably promotes two outstanding nails 431 of this swingle 43, and its both sides have the hollow slot 441 that inserts this outstanding nail 431; Operation highlight bar 45, be symmetricly set in the both sides, bottom of this worm gear 42, be inserted in the inside of this outstanding rail 44, rotate these two outstanding nails 431 by the rotation of worm gear 42 separately, interlock by inside and outside

axle

22,23 rotates switch disk 24, when closing closed disk, the interior axle 22 that only will be fixed with this cam 221 rotates to an angle, and makes disk 24 move a certain distance to disc 12 directions.

This depressed part 322 can be arranged on top or bottom according to the diameter of disk 24, also can be arranged on the upper and lower part simultaneously.

If close the as above valve body of structure, then as shown in fig. 1, utilize this switch gear 4 to rotate inside and outside axle 22 at first simultaneously, 23, axle in only rotating afterwards, thereby the disposable pass of the rotation closed channel by disk moves disk near to the disc direction by axle in the rotation only afterwards, thereby closes closed channel fully.

And the present invention utilizes this cam connection set 3, and the outer shaft 23 that constitutes operation axle 21 is fixed on the disk 24 easily, illustrates that referring to figs. 1 through Fig. 3 the connection procedure of cam connection set 3 is as follows.

At first, fix the connecting body 32 that at least one constitutes the single structure of cam connection set 3 in the front of disk 24 with welding or the bolt mode of concluding.

Afterwards, operation axle 21 is inserted into the cam assembly department 321 that is arranged on these connecting body 32 inside, and in the depressed part 322 of top that is formed at connecting body 32 or upper and lower part, insert the outer axis fixing plate 33 that is formed with the open slotted hole 331 in rear portion, thereby realize being connected to each other of operation axle 21 and disk 24.

More specifically describe, then be inserted into the process of depressed part 322 by being somebody's turn to do outer axis fixing plate 33, the slotted hole 331 that is formed at these depressed part 322 rears is inserted into a pair of engagement groove 31 that is formed at outer shaft 23 bottoms, thereby connect outer axis fixing plate 33 and outer shaft 23, afterwards, utilize bolt 336 that outer axis fixing plate 33 is assembled in connecting body 32, thereby finish being connected of operation axle 21 and disk 24 by cam connection set 3.

Therefore, the outer shaft 23 that utilizes the single outer axis fixing plate 33 that is formed with slotted hole 331 will constitute the operation axle 21 of valve body is fixed on the disk connecting body 32, makes to comprise that the operation axle 21 of outer shaft 23 and being connected of disk 24 are more prone to.That is,, in assembling process, need not to adjust its amplitude, can correctly finish assembling rapidly because this slotted hole 331 is integrally formed.

Fig. 4 is the sectional view of A-A line part among Fig. 2.Be formed with at least one pair of horizontal keyhole 323 on this connecting body 32 as two outer shafts of depressed part 322, concluding on this keyhole 323 can the accurate bolt 324 of adjusting the central position of outer axis fixing plate 33.

And connect at operation axle 21 and to be arranged under the state of cam connection set 3, adjust the state of concluding of the bolt 324 that is arranged on outer axis fixing plate both sides, be easy to install center thus by the operation axle 21 of inside and outside

axle

22,23 formations.

Therefore, even the back is installed or the fault that the position of operation axle 21 changes in use occurs, also can keep in repair rapidly at equipment.

Fig. 5 is the B portion enlarged view among Fig. 1.On the circumference of the rear of this disc 12, also be fixed with the polytetrafluoroethylene ring 5 that the cross section 241 with disk 24 circumference fits tightly by fixing device 6.And this fixing device 6 comprises: the circle of outer side surface of pushing polytetrafluoroethylene ring 5 is by pressure ring 61 and connect this circle is combined in this disc rear by pressure ring 61 and polytetrafluoroethylene ring 5 a plurality of bolts 611.

By pressure ring 61 polytetrafluoroethylene ring 5 firmly is fixed on the rear of this disc 12 by this circle, makes to fit tightly fully between the outer side surface of the inner side surface of this polytetrafluoroethylene ring 5 and disk 24, thereby improve the obturation effect of fluid.

Fig. 6 is for another embodiment of poly-ptfe ring fixing device among the present invention, on the circumference of the rear of this disc, and the poly-ptfe ring 5 that fits tightly by fixing device 6 circumferential sections 241 further fixing and disk 24.

This fixing device 6 comprises: the oblique cross section 51, the outside that is arranged on the excircle cross section of this polytetrafluoroethylene ring 5; Ring support 62, this ring support 62 have the inboard oblique cross section 621 of firmly pushing this oblique cross section 51 from the outside, are formed on the excircle in oblique cross section 621, this inboard, push down the projection 622 in the outside of polytetrafluoroethylene ring 5; A plurality of fixing bolts 63 connect this ring support 62 and polytetrafluoroethylene ring 5 and are combined in the rear of this disc 12; And bolt 64 is regulated in pressurization, connects and is incorporated into this projection 622, tightens the internal diameter of polytetrafluoroethylene ring 5, thereby adjusts the pressurized state of the circumferential section of disk 24.

By pressure ring 61 polytetrafluoroethylene ring 5 firmly is fixed on the rear of this disc 12 by circle, make the inner side surface of this polytetrafluoroethylene ring 5 and the outer side surface of disk 24 fit tightly fully, thereby can improve the obturation effect of fluid, and can regulate the internal diameter that bolt 64 is regulated polytetrafluoroethylene ring 5 by this pressurization, therefore, if this polytetrafluoroethylene ring 5 is frayed, then can regulate the obturation effect decline that the internal diameter of bolt 64 prevents valve body by regulating this pressurization.

The present invention utilizes most preferred embodiment to describe in conjunction with the accompanying drawings, but those skilled in the art can obtain other schemes by this narrating content within the scope of the invention.Therefore, protection scope of the present invention is not limited to this specification, should determine according to the claims that comprise various forms of implementation.

Claims

1, a kind of fly valve, it comprises:

Body (1) comprises the stream (11) of have disc (12) and vertical space portion (13);

Restricting means (2), comprise disk (24), it is connected in by more than one cam connection set (3) and is arranged on this vertical space portion (13) and by vertical inside and outside axle (22,23) lower end of the operation axle (21) of Gou Chenging, and by with this in the more than one cam (221) that is connected of axle change position when closing;

Switch gear (4) is arranged at the top of this vertical inside and outside axle (22,23), this restricting means of switch (2); It is characterized in that this cam connection set (3) comprising:

At least one pair of engagement groove (31) is symmetricly set in the both sides, bottom of this outer shaft (23);

Connecting body (32), fix by welding or bolt combination, make its back side fit tightly in the front of this disk (24), inside has open upper and lower and inboard and detection piece assembly department (321) and positive can the insertion by open at least one depressed part (322) that be mounted on the cam (221) of axle (22) bottom this in are moved spool (21);

Outer axis fixing plate (33), the rear is formed with the slotted hole (331) that is inserted in the opening in this a pair of engagement groove (31), be inserted into the rear from the place ahead of this depressed part (322), two ends (332) of this slotted hole (331) are inserted in a pair of engagement groove (31) of outer shaft (23) slidably, and this outer axis fixing plate (33) is fixed in support by bracket fixing device (333).

2, fly valve according to claim 1 is characterized in that, this bracket fixing device (333) comprising: a plurality of through holes (334) that are formed at the both sides of this outer axis fixing plate (33); Be arranged at this depressed part (322) both sides with the corresponding locational keyhole of this through hole (334) (335); And connect this through hole (334) and the bolt (336) that combines with this keyhole (335).

3, fly valve according to claim 1 and 2, it is characterized in that, be formed with at least one pair of horizontal keyhole (323) on the connecting body (32) as two outsides of this depressed part (322), go up bolt (324) in conjunction with the central position of axis fixing plate (33) outside can accurately adjusting at this keyhole (323).

4, fly valve according to claim 1 is characterized in that, this depressed part (322) is arranged at the top or the bottom of this connecting body (32), perhaps upper and lower part.

5, fly valve according to claim 1 is characterized in that, on the excircle of the rear of this disc, also is fixed with the polytetrafluoroethylene ring (5) that the circumferential section (241) with disk (24) fits tightly by fixing device (6).

6, fly valve according to claim 5, it is characterized in that this fixing device (6) comprising: the circle of pushing polytetrafluoroethylene ring (5) from outer side surface by pressure ring (61), and connect this circle is combined in this disc rear by pressure ring (61) and polytetrafluoroethylene ring (5) a plurality of bolts (611).

7, fly valve according to claim 5 is characterized in that, this fixing device (6) comprising: oblique cross section, the outside (51) is arranged on the outer circumference cross section of this polytetrafluoroethylene ring (5);

Ring support (62) comprises the inboard oblique cross section (621) of firmly pushing this oblique cross section (51) from the outside, and is formed on the excircle in oblique cross section, this inboard (621), pushes the projection (622) in the outside of polytetrafluoroethylene ring (5);

A plurality of fixing bolts (63) connect this ring support (62) and polytetrafluoroethylene ring (5) and are incorporated into the rear of this disc (12); And,

Bolt (64) is regulated in pressurization, connects and is incorporated into this projection (622), tightens the internal diameter of polytetrafluoroethylene ring (5), thereby adjusts the pressurized state of the circumferential section of disk (24).