JPH0424218Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a mounting device for mounting a valve driving section for driving a valve body to a valve body in a butterfly valve or other valves.

(Prior Art) Conventionally, various valves, whether operated manually or automatically, are generally opened and closed by external operations. The operation method of the valve is determined by connecting various types of drive units configured separately to the valve body.

By the way, valves have a wide variety of structures, types, dimensions, etc., and the size and pitch diameter of the bolts used to attach them to the drive section are not uniform. It is uneconomical to prepare a large number of drive parts to accommodate such a variety of valve-side mounting parts, so if the valve body and the drive part mounting parts do not match, an intermediate flange or They are connected via a connection auxiliary member such as a rectangular tube.

(Problem to be solved by the invention) In the past, when the mounting bolt size and pitch diameter of the valve body and the drive part were different, connecting auxiliary members such as intermediate flanges and rectangular pipes were used. However, since this connection auxiliary member differs depending on the combination of the valve body and the drive unit, it must be manufactured each time the drive unit is connected, or many types must be manufactured in advance and kept in stock. There was a problem that I couldn't solve.

(Means for Solving the Problems) This invention was made to solve the problems seen in the past. The intermediate flange 4 has a disk shape, has a valve stem insertion hole 5 at the center, and has a plurality of elongated holes 6 extending from the outer periphery toward the center at different positions from the elongated holes 6. The elongated hole 6 has a concave groove 7 extending from the outer periphery along the elongated hole 6 and continues through the step 8, and the bolt hole 11 has a counterbore hole 12. The mounting bolt 13 inserted through the bolt hole 11 is fastened to the drive part 3, and the connecting bolt 9 inserted from the outside of the elongated hole 6 is fastened to the main body 1 to connect the valve drive part 3 and the main body 1. It is characterized in that it connects.

(Function) A long hole extending toward the center and a concave groove continuous to the top of the long hole are formed in the intermediate flange, a connecting bolt is inserted into the long hole, and the head of the connecting bolt is inserted into the step of the concave groove. Since it is designed to abut and support, it can accommodate the connecting bolt size within the range of the width of the slotted hole and the width of the stepped portion of the groove, and can accommodate the pitch diameter of the connecting bolt within the range of the length of the slotted hole. As a result, one intermediate flange can be connected to multiple valve bodies, and the driving part and intermediate flange can be connected using mounting bolts inserted through the bolt holes. Compatible with various valve body and drive unit combinations.

(Effect of the invention) Since one intermediate flange can accommodate multiple bolt sizes and pitch diameters, the number of intermediate flanges to be prepared is significantly reduced, and even if they are manufactured in advance and kept in stock, the cost is high. There is a low probability that this will occur, and the valve body and the driving section can be connected immediately when necessary.

(Embodiments) Preferred embodiments of this invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes the main body of the butterfly valve, and a flange 2 is formed on the head for connection to a driving section, and a plurality of bolt holes are formed at equal intervals as is conventionally known. Although four bolt holes are formed in the illustrated embodiment, the present invention is not limited to this. Furthermore, this invention can be applied not only to butterfly valves but also to various other valves. Reference numeral 3 denotes a drive unit connected to the main body 1, and four bolt holes are formed in the bottom surface for connection to the main body 1, as is conventionally known.

Reference numeral 4 denotes an intermediate flange according to this invention, which can be used to connect the main body 1 and the drive section 3 when the sizes or pitch diameters of the connecting bolts between the main body 1 and the drive section 3 are different.
is inserted between.

As shown in FIGS. 2 to 5, the intermediate flange 4 has a disk shape, and has a valve stem insertion hole 5 bored in the center.
Four elongated holes 6 extending from the outer peripheral edge toward the center are formed in the intermediate flange 4 at equal intervals. The elongated hole 6 opens outward from the outer peripheral edge of the intermediate flange 4, and its inner end terminates without reaching the valve rod insertion hole 5. The upper part of the elongated hole 6 is continuous with a groove 7 extending toward the center like the elongated hole 6, and the width of the groove 7 is larger than the width of the elongated hole 6.
Therefore, a stepped portion 8 is formed between the elongated hole 6 and the groove 7. While supporting the head 10 of the connecting bolt 9 (FIG. 6) on the main body 1 side in contact with this stepped portion 8, the elongated hole 6
is inserted and extends toward the main body 1 side.

A bolt hole 11 through which a drive-side mounting bolt is inserted is formed in the middle of each elongated hole 6. The bolt hole 11
has a countersunk hole 12 on the side opposite to the groove 7 for receiving the bolt head.

At the time of connection, the intermediate flange 4 is fastened to the lower surface of the drive section 3 with mounting bolts 13. The mounting bolt 13 is a bolt with a hexagonal socket having a hexagonal hole in its head, and is tightened by attaching a tool to the hexagonal hole. In the fastened state, the head of the mounting bolt 13 enters the counterbore hole 12 and does not protrude downward, so the main body 1
There is no risk of interfering with the connection with the side.

After connecting the intermediate flange 4 to the drive part 3 with the mounting bolts 13, the connecting bolts 9 are inserted into the elongated holes 6 from the outer circumferential direction of the intermediate flange 4, aligned with the bolt holes on the main body 1 side, and inserted. After insertion, a nut is screwed into the connecting bolt 9 and tightened to connect the intermediate flange 4 and the main body 7. In the connected state, the head 10 of the connecting bolt 9 is supported in contact with the stepped portion 8, and the head 10 is located within the groove 7 and does not protrude upward.

Thus, within the range of the length of the long hole 6, the connecting bolt 9 can move in the radial direction corresponding to the pitch diameter of the main body 1 side, and the size of the connecting bolt 9 can be changed within the range of the width of the long hole 6. It is possible to do so.

[Brief explanation of drawings]

Fig. 1 is a front view showing the state of connection between the main body and the drive unit, Fig. 2 is a plan view of the intermediate flange, Fig. 3 is a cross-sectional view taken along the line of Fig. 2, and Fig. 4 is Fig. 2 - 5 is a perspective view of the intermediate flange, and FIG. 6 is a perspective view of the connecting bolt. 1... Main body, 2... Flange, 3... Drive section,
4... Intermediate flange, 5... Valve stem insertion hole, 6...
Long hole, 7... Concave groove, 8... Step, 9... Connection bolt, 10... Head, 11... Bolt hole, 12...
Counterbore hole, 13...Mounting bolt.

Claims (1)

[Scope of utility model registration request] An intermediate flange 4 is interposed between the main body 1 and the drive section 3 to connect them. A plurality of long holes 6 extending toward the center and a plurality of bolt holes 1 at different positions from the long holes 6.
1, the elongated hole 6 has a concave groove 7 extending from the outer periphery along the elongated hole 6 and continues through the step 8, and the bolt hole 11 has a counterbore hole 12 formed therein. The mounting bolt 13 inserted into the hole 11 is fastened to the drive part 3, and the connecting bolt 9 inserted from the outside of the elongated hole 6 is tightened.
A mounting device for a valve driving part, characterized in that the valve driving part 3 and the main body 1 are connected by being fastened to the main body 1.