KR200364539Y1 - An operate shaft coupling apparatus of the butterfly valve - Google Patents

Abstract

The present invention relates to an operating shaft connecting device of the butterfly valve, and more particularly to an operating shaft connecting device of the butterfly valve to maximize the assembly efficiency by facilitating the connection between the operating shaft and the disk including the outer shaft. And at least one cam connected to the inner shaft by a body including a disk seat and a flow channel having a vertical space portion, and connected to one or more cam connecting means at a lower end of an operating shaft formed in the vertical space portion and configured as a vertical inner and outer shaft. In the butterfly valve comprising an intermittent means including a disc that is changed in position when closed, and opening and closing means provided on the vertical inner and outer shafts to open and close the intermittent means; The cam connecting means, both coupling grooves are formed in one or more symmetrically on both sides of the lower portion of the outer shaft, and fixed to the front of the disk by welding or bolted to close contact with the inside, the upper, lower and The inner side is open and has a cam mounting portion to which the cam fixed to the lower portion of the inner shaft is mounted and at least one recessed groove portion which is open at the front side to which the operating shaft is inserted and the rear to be fitted to both coupling grooves. A long hole is formed and is inserted from the front to the rear of the recessed groove, and both ends of the long hole are slidably fitted into both coupling grooves of the outer shaft, and the outer shaft fixing plate is fixed to the bracket through the bracket fixing means. .

Description

An operate shaft coupling apparatus of the butterfly valve}

The present invention relates to an operating shaft connecting device of the butterfly valve, and more particularly to an operating shaft connecting device of the butterfly valve to maximize the assembly efficiency by facilitating the connection between the operating shaft and the disk including the outer shaft. .

In general, a butterfly valve refers to a valve that blocks a flow path through a disk, and is widely used to control not only a fluid but also high temperature steam and various chemicals.

Therefore, the present invention is an improvement of the butterfly valve of the present application to describe the butterfly valve of the present applicant is as follows.

In one embodiment, the "solid metal seat butterfly valve" of the Republic of Korea Utility Model Registration No. 292440 is known.

Therefore, the valve of the embodiment includes a body including a flow path provided with a disc seat and a vertical space portion, and a curved eccentric cam, a curved eccentric cam guide, and a curved eccentric cam cover at a lower end of the vertical inner and outer shafts. An intermittent means including a disk which is connected by a back (hereinafter referred to as 'cam connecting means' for convenience) and moved to a closed position when closed by rotation of a curved cam connected to the inner shaft (hereinafter referred to as 'cam' for convenience); And a handle shaft, a worm gear, a wheel, a guide cup, a guide flange, a guide plate, etc. (hereinafter, referred to as 'opening and closing means' for convenience) provided at an upper portion of the vertical inner and outer shafts to open and close the control means. .

That is, the opening and closing means, the worm wheel is rotated through the worm gear of the handle shaft and the worm wheel fixed to be rotated in conjunction with the inner shaft and the outer shaft is interlocked with both ends of the guide plate with a circular shaft and the upper portion of the worm wheel The lower part of the guide cup is provided at the bottom and a single jaw groove is formed, and the guide flange is provided at the lower portion of the guide plate and the inclined groove is formed at the upper part.

Therefore, by rotating the inner and outer shaft at the same time and the inner shaft only through the opening and closing means, the operation of closing the flow path as the disk close to the disk seat by moving the disk close to the disk seat by first closing the flow path by rotating the disk only. To do.

The cam connecting means includes a curved eccentric cam guide composed of two side guides separated from both sides to support the lower portion of the outer shaft and fixed to the disc, and a curved eccentric cam cover blocking the rear opening of the two side guides. do.

In particular, the upper and lower portions of the both side guides are formed with insertion step inserted into the groove formed in the outer shaft.

Therefore, by inserting the inner and outer shafts of the curved cam is fixed to the space between the two guides and then fixed the curved eccentric cam cover, the connection between the inner, outer shaft and the disk is completed.

However, when connecting the inner and outer shaft and the disk through the cam connecting means configured as described above, there was a very difficult problem in adjusting the width between the guides as the two guides are separated from each other.

In other words, the groove formed in the lower part of the outer shaft is formed on both guides to connect the stepped by loose fitting and to maintain the precise shape tolerance between the stepped formed on both guides, there is a problem that wastes a lot of time to assemble the guides there was.

In addition, as both guides are assembled on the discs, a lot of time is wasted in aligning the center of the inner and outer shafts during assembly.

The present invention has been improved to solve the problems of the present applicant, the original shaft, by fixing the outer shaft constituting the operating shaft of the valve to the disk connecting body through a single outer shaft fixing plate provided with a long hole that includes the outer shaft It is an object of the present invention to provide an assembly shaft connecting device of a butterfly valve that can easily connect a working shaft and a disk.

In addition, by adjusting the position of the outer shaft fixing plate through the bolts provided on both sides of the outer shaft fixing plate while the operating shaft is penetrated by the cam connecting means, there is also an object to easily set the center of the operating shaft consisting of the inner and outer shafts. .

1 is a front sectional view showing a valve equipped with a cam connecting means of the present invention.

Figure 2 is an enlarged perspective view of the connection device according to the present invention.

Figure 3 is an exploded perspective view showing a connection device according to the present invention.

4 is a cross-sectional view taken along the line A-A of FIG.

5 is an enlarged view of a portion B of FIG. 1.

Figure 6 is a sectional view of the main portion showing another embodiment of the teflon ring fixing means according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: body

11: Euro

12: disc sheet

13: vertical space part

2: control means

21: working shaft

22: internal shaft

221: cam

23: outer axis

24: disc

241: circumferential end surface

3: Cam connection means

31: coupling groove

32: connector

321: cam mounting portion, 322: recessed groove portion, 323: tap hole, 324: bolt

33: outer shaft fixing plate

331: long hole, 332: end, 333: bracket fixing means,

334: through hole, 335: tap hole, 336: bolt

4: opening and closing means

41: casing

42: worm wheel

43: swivel

44: protruding rail

45: working protrusion

5: teflon ring

51: outside sloped end face

6: fixing means

61: round push ring

611: Bolt

62: ring bracket

621: inner inclined end surface, 622: protruding jaw

63: Tightening Bolt

64: pressure adjustment bolt

The present invention for achieving the above object, the disk seat and the body including a flow path provided with a vertical space portion, and the one or more cam connecting means at the lower end of the operating shaft provided in the vertical space portion and composed of vertical inner, outer shaft Intermittent means including a disk connected via the one or more cams connected to the inner shaft to change its position when closed, and an opening / closing means provided at an upper portion of the vertical inner and outer shafts to open and close the intermittent means. In; The cam connecting means, both coupling grooves are formed in one or more symmetrically on both sides of the lower portion of the outer shaft, and fixed to the front of the disk by welding or bolted to close contact with the inside, the upper, lower and The inner side is open and has a cam mounting portion to which the cam fixed to the lower portion of the inner shaft is mounted and at least one recessed groove portion which is open at the front side to which the operating shaft is inserted and the rear to be fitted to both coupling grooves. A long hole is formed and is inserted from the front to the rear of the recessed groove, and both ends of the long hole are slidably fitted into both coupling grooves of the outer shaft, and the outer shaft fixing plate is fixed to the bracket through the bracket fixing means. .

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a front sectional view showing a valve equipped with a cam connecting means of the present invention, Figure 2 is an enlarged perspective view showing a connecting device according to the present invention, Figure 3 is an exploded perspective view showing a connecting device according to the present invention.

The connecting device according to the present invention includes a body 1 including a flow path 11 having a disc seat 12 and a vertical space portion 13, and a vertical inner and outer shafts provided in the vertical space portion 13. The disk 24 is connected to the lower end of the operating shaft 21 consisting of (22, 23) via at least one cam connecting means (3), the position of the disc 24 is changed when closing through at least one cam (221) connected to the inner shaft In the butterfly valve comprising a control means (2) comprising; and the opening and closing means (4) which is provided on top of the vertical inner, outer shafts (22, 23) to open and close the control means (2);

The cam connecting means (3) is welded or bolted so that both coupling grooves (31) formed at least one symmetrically on both sides of the lower portion of the outer shaft (23) and the rear surface are in close contact with the front surface of the disk (24). It is fixed through the fastening and the inside, the top, bottom and the inside is open, the cam mounting portion 321 is provided with a cam fixed to the lower portion of the inner shaft 22 and the cam mounting portion 321 and the front is open One or more recessed grooves 322 are provided to form a connecting body 32 into which the operating shaft 21 is inserted, and an open long hole 331 fitted to both coupling grooves 31 at the rear thereof. The outer shaft is inserted from the front of the groove 322 to the rear and the both ends 332 of the long hole 331 is slidably fitted in both coupling grooves 31 of the outer shaft and fixed to the bracket through the bracket fixing means 333 It is composed of a fixed plate (33).

In particular, the bracket fixing means 333 has a plurality of through holes 334 formed on both sides of the outer shaft fixing plate 33 and at positions corresponding to the through holes 334 on both sides of the recessed groove 322. It consists of a provided tab hole 335, and a bolt 336 penetrated through the through hole 334 and fastened to the tab hole 335.

In addition, the opening and closing means 4 is a casing 41 provided on the upper portion of the body 1 so that the vertical inner and outer shafts 22 and 23 protrude inwards, and the handle is fixed to the upper portion of the inner shaft 22. A worm wheel 42 which is rotated through the worm 422 of 421 and a swivel table 43 which is provided to be elevated and rotatably rotated on the upper portion of the outer shaft 23 and includes both protruding pins 431; Protruding rails are provided around the lower portion of the casing 41 so that both protruding pins 431 of the swivel table 43 are rotatably raised and recessed grooves 441 into which the protruding pins 431 are inserted are provided. 44, and are provided symmetrically on both sides of the lower portion of the worm wheel 42 is inserted into the protruding rail 44, each of which rotates the two protruding pins 431 through the rotation of the wheel wheel 42, The disc 24 is opened and closed by interlocking rotation of the outer shafts 22 and 23, and when the disc 24 is closed, only the inner shaft 22 to which the cam 221 is fixed is rotated at a predetermined angle. Greater than 24 to be constituted by disk sheet 12 a predetermined distance to be moved only works for projecting (45) toward the.

In addition, the recessed groove 322 is provided in the upper or lower portion according to the diameter of the disk 24, it can be provided in both upper and lower.

Therefore, when closing the valve configured as described above, by rotating the inner and outer shafts 22 and 23 at the same time through the opening and closing means 4 as shown in FIG. By closing the flow path primarily through the inner shaft only by rotating the inner disk to move the disk toward the disk seat to perform the operation to completely close the flow path.

On the other hand, the present invention can be easily fixed to the disk 24, the outer shaft 23 constituting the operating shaft 21 through the cam connecting means 3, with reference to Figures 1 to 3 cam connection The connection process of the means 3 is explained as follows.

First, one or more connecting members 32 constituting the cam connecting means 3 are fixed to the front surface of the disk 24 by welding or bolting.

Next, after inserting the operating shaft 21 into the cam mounting portion 321 provided in the connecting body 32, the rear is opened in the recessed groove 322 formed on the upper or upper, lower portion of the connecting body 32 By inserting the outer shaft fixing plate 33 formed with the long hole 331 is to complete the interconnection of the operating shaft 21 and the disk 24.

In detail, through the process of inserting the outer shaft fixing plate 33 into the recessed groove 322, the coupling of the long hole 331 formed at the rear of the recessed groove 322 in the lower portion of the outer shaft 23 The cam connecting means 3 by connecting the outer shaft fixing plate 33 and the outer shaft 23 with each other by inserting into the groove 31 and then assembling the outer shaft fixing plate 33 to the connecting body 32 through the bolt 336. It is to complete the connection of the working shaft 21 and the disk 24 through.

Therefore, by fixing the outer shaft 23 constituting the operating shaft 21 of the valve to the disk connector 32 through a single outer shaft fixing plate 33 provided with a long hole 331, the operation including the outer shaft 23 It is possible to facilitate the connection of the shaft 21 and the disk 24. That is, since the long hole 331 is integrally configured, it is not necessary to adjust the width in the assembling process so that the assembly can be performed quickly and accurately.

4 is a cross-sectional view taken along line AA of FIG. 2, wherein at least one pair of horizontal tap holes 323 are formed in the connector 32, which is both outer shafts of the recessed groove 322, and the outer shaft fixing plate 33 is formed in the tap holes 323. It is characterized in that the bolt 324 is fastened to accurately adjust the center position of the).

Therefore, as the operating shaft 21 penetrates the cam connecting means 3 and adjusts the fastening state of the bolts 324 provided on both sides of the outer shaft fixing plate, the operating shaft composed of the inner and outer shafts 22 and 23 ( 21) the center of gravity can be easily set.

Therefore, even if a failure occurs that changes the position of the operating shaft 21 after installation or use of the device can be quickly repaired.

FIG. 5 is an enlarged view of a portion B of FIG. 1, wherein a teflon ring 5, in which a circumferential end surface 241 of the disk 24 is in close contact with the rear circumference of the disc sheet 12, is further connected through the fixing means 6. It is fixed. And the fixing means 6 is fastened to the rear of the disk sheet through the circular pressing ring 61 and the circular pressing ring 61 and the Teflon ring 5 for pressing the outer surface of the Teflon ring (5) It is composed of a plurality of bolts (611).

Thus, as the Teflon ring 5 is firmly fixed to the rear of the disk seat 12 through the circular push ring 61, the gap between the inner surface of the Teflon ring 5 and the outer surface of the disk 24 is completely satisfied. By being closely adhered to, the sealing effect of the fluid can be improved.

Figure 6 shows another embodiment of the teflon ring fixing means according to the present invention, the teflon ring (5) which is in close contact with the circumferential end surface 241 of the disk (24) close to the rear circumference of the disk seat fixing means (6) It is more fixed through.

Therefore, the fixing means 6 of the other embodiment, the outer inclined end surface 51 and the inclined end surface 622 which is further formed on the outer peripheral end of the Teflon ring 5 can be pressed firmly from the outside. A ring bracket 62 including an inner inclined end surface 621 and a protruding jaw 622 formed around the outer side of the inner inclined end surface 621 to press the outside of the Teflon ring 5; A plurality of fastening bolts 63 fastened to the rear of the disk seat 12 through the ring bracket 62 and the Teflon ring 5 and through the protruding jaw 622 through the ring of the teflon ring 5 It consists of a pressure adjustment bolt 64 for adjusting the pressure state of the peripheral end of the disk 24 by reducing the inner diameter.

As the Teflon ring 5 is firmly fixed to the rear of the disk seat 12 via the circular push ring 61, the gap between the inner surface of the Teflon ring 5 and the outer surface of the disk 24 is completely satisfied. By being in close contact with each other, the sealing effect of the fluid can be improved, and the inner diameter of the Teflon ring 5 can be adjusted through the pressure adjusting bolt 64, so that the pressure adjustment when the Teflon ring 5 is worn out. By adjusting the inner diameter of the bolt 64, it is possible to prevent the sealing effect of the valve from being lowered.

As described above, it is possible to easily connect the operation shaft and the disc including the outer shaft by assembling the outer shaft fixing plate and the connecting body as a single unit, thereby improving the assembly efficiency and providing a valve that maximizes productivity.

In addition, it is also possible to easily adjust the center of the operating shaft composed of the inner, outer shaft has the effect of facilitating the initial assembly and maintenance of the valve during use.

Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many various obvious modifications are possible without departing from the scope of the present invention from this description. Therefore, the scope of the present invention should be construed by the claims described to include many such variations.

Claims (7)

Body 1 including a flow path 11 having a disc seat 12 and a vertical space portion 13, and an operation consisting of vertical inner and outer shafts 22, 23 provided in the vertical space portion 13 An intermittent means (2) comprising a disk (24) connected to the lower end of the shaft (21) via at least one cam connecting means (3), the position of which is changed upon closing through at least one cam (221) connected to the inner shaft; A butterfly valve comprising an opening and closing means (4) provided on an upper portion of the vertical inner and outer shafts (22, 23) to open and close the control means (2); The cam connecting means 3, Both coupling grooves 31 which are formed in at least one symmetrically on both sides at the lower portion of the outer shaft 23 and the front surface of the disk 24 are fixed by welding or bolting to be in close contact with each other. The lower and inner sides are open, the cam mounting portion 321 is mounted to the cam 221 fixed to the lower portion of the inner shaft 22 and one or more recessed groove portion 322 is provided with a front opening operating shaft 21 The insertion body 32 is inserted, and an open long hole 331 fitted to both coupling grooves 31 is formed at the rear, and is inserted rearward from the front of the recessed groove 322 and the long hole 331. The butterfly valve, characterized in that the both ends 332 of the butterfly valve is slidably fitted into both coupling grooves 31 of the outer shaft 23 and is fixed to the bracket through the bracket fixing means 333. Working shaft coupling. The method of claim 1, wherein the bracket fixing means 333, A plurality of through holes 334 formed on both sides of the outer shaft fixing plate 33, a tap hole 335 provided at positions corresponding to the through holes 334 on both sides of the recessed groove 322, and the through hole The operating shaft connecting device of the butterfly valve, characterized in that consisting of a bolt 336 penetrates through the 334 and is fastened to the tap hole 335. The method according to claim 1 or 2, One or more pairs of horizontal tab holes 323 are formed in the connecting body 32 which is both outside of the recessed groove 322, and the tab holes 323 are capable of precisely adjusting the center position of the outer shaft fixing plate 33. Actuator connecting device of the butterfly valve, characterized in that the fastening (324). According to claim 1, wherein the recessed groove portion 322, the operating shaft connecting device of the butterfly valve, characterized in that provided in the upper or lower portion or the upper, lower portion of the connecting body (32). 3. A teflon ring (5) according to claim 1 or 2, characterized in that the teflon ring (5), in which the circumferential end surface (241) of the disc (24) is in close contact with the rear circumference of the disc sheet, is further fixed through the fixing means (6). Coupling shaft of butterfly valve. The method of claim 5, wherein the fixing means (6) It consists of a circular pressing ring 61 for pressing the teflon ring 5 on the outside and a plurality of bolts 611 fastened to the rear of the disc seat through the circular pressing ring 61 and the teflon ring 5. The operating shaft connection device of the butterfly valve. The method of claim 5, wherein the fixing means (6) An outer inclined end surface 51 further formed at an outer circumferential end of the teflon ring 5, and an inner inclined end surface 621 formed so as to press the outer inclined end surface 51 firmly from the outside; A ring bracket 62 formed on an outer circumference of the inner inclined end surface 621 and including a protruding jaw 622 for pressing the outside of the teflon ring 5, and the ring bracket 62 and the teflon ring 5. A plurality of fastening bolts 63 fastened to the rear of the disk seat 12 and penetrated through the protruding jaw 622 to reduce the inner diameter of the Teflon ring 5 to reduce the inner diameter of the disk 24. The operating shaft connection device of the butterfly valve, characterized in that consisting of a pressure adjustment bolt (64) to adjust the pressure state of the.