JPS61274185A - Valve structure - Google Patents

Abstract

PURPOSE:To prevent a valve from projecting to a fluid pipe by rotatably fitting a cylindrical rotation operating member on the outer peripheral surface of a valve housing in such a manner as to turn round the axis of the valve extending from one end of the valve housing to the other end. CONSTITUTION:An outer casing ring 21 is directly gripped to be turned clockwise or counter-clockwise. In response to the movement of the outer casing ring 21, an internal operation ring 19 is turned to rotate a pinion gear 18 through a rack gear 20. That is, the turn of the outer casing ring 21 round the axis X-X of a valve is transmitted as the turn of a valve element 15 round the axis Y-Y of the gear orthogonal to the valve axis X-X through a turning rod 16.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a valve structure such as a flow rate m regulating valve including a gate valve.

(Prior Art) In general, the structure of a sluice valve, for example, which is incorporated into piping equipment such as water supply and hydraulic equipment, is as shown in FIG. 4, as shown in FIG. There is a known type in which the valve body 3 inside the valve housing 1 is actuated in the direction of opening or closing the flow path by manually rotating the valve 2, thereby closing the flow path or adjusting the flow rate. There is.

(Problems to be Solved by the Invention) However, in various types of valves equipped with a handle wheel 2, the handle wheel 2 protrudes from the outside of the valve housing 1; It is necessary to design piping equipment lines that take into account the protruding space. Moreover.

There have been problems in that they tend to cause problems as protruding obstacles on the line and are aesthetically inferior.

The present invention was made to solve these problems in the conventional valve structure, and by eliminating the conventional protruding handle wheel and simplifying the valve body, it improves functionality and aesthetics. The purpose is to provide an excellent valve structure.

In order to achieve the above object, a valve structure according to the present invention includes a valve housing in which fluid pipes are connected at one end and the other end and a fluid flow path is provided inside, and a valve body that operates in the direction of opening and closing the passage; and a valve body that is rotatably fitted onto the outer peripheral surface of the valve housing so as to be rotatable around a valve axis extending from one end of the valve housing to the other end of the valve housing. The valve body is configured to include a cylindrical rotation operation member, and a transmission mechanism that transmits the rotation of the rotation operation member to operate the valve body.

The transmission mechanism may include a driving gear portion having teeth along one end surface of a slit formed in a circumferential direction of the rotation operating member, and a driving gear portion that meshes with the teeth of the driving gear portion to align the valve axis line. a driven gear rotatable in a plane parallel to the driven gear; a rotating frame having one shaft coupled to the driven gear and the other end coupled to the valve body and rotatably supported by the valve housing;
It is configured with the following.

Further, the valve body is configured to be able to rotate around an axis perpendicular to the valve axis via the transmission mechanism.

Further, the valve body is configured to be able to reciprocate in a direction perpendicular to the valve axis via the transmission mechanism.

(Example) Below, some examples of the valve structure according to the present invention will be described.
This will be explained with reference to FIGS. 3 to 3. Note that the same reference numerals used in the description of the conventional example refer to the same or similar members.

FIGS. 1(a) to 1(c) show a first embodiment in which the valve structure according to the present invention is employed as a ball valve. A female threaded portion 1 is provided at each end of the valve housing 10 constituting the valve body.
1 is provided, and the downstream and upstream fluid pipe bodies P and P2 are connected to each female threaded part 11, respectively. On the outer circumferential surface of the valve housing IO, a guide groove portion 10a formed by stepped processing extends along the entire periphery of the valve axis x-X.
The guide groove portion 1 is integrally molded over a length of 60″.
An operating ring (rotating operating member) 19, which will be described later, is fitted onto the valve housing lO so as to be guided by the valve housing lO and pivotable around the valve axis X-x. A pair of valve seats 13.13 are fitted into the partition wall 12.12 inside the valve housing 10, facing each other along the fluid flow direction.

A communication hole 14 is opened in both the partition wall 12 and the valve seat 13. Further, the valve seat 13 has a concave spherical seat 13a.
A spherical valve body 15 is connected to a concave spherical seat 13 from both sides.
a, 13a, and are supported in sliding contact with each other.

A valve hole 15a is formed in the valve body 15 so as to partially penetrate through the valve body 15.
is bored, and this valve hole 15a communicates with the communication hole 14 to allow fluid to flow from the upstream pipe P to the downstream pipe P2. Further, a rotation frame 16, which is a member of a transmission mechanism to be described later, is fitted to the valve body 15 in a direction perpendicular to the valve shaft, IXX-X, to such an extent that the valve body 15 can be rotated. The component structure of the transmission mechanism will be described below. The rotation frame 16 is the valve housing 1
0 through a sealing member 17 such as a ring.

Furthermore, a pinion gear (passive gear) 18 having teeth carved around the gear axis YY is provided at the tip of the rotating frame 16. On the other hand, a slit 19a having a groove width approximately equal to the outer diameter of the pinion, which is large enough to accommodate the pinion 18, is cut out in a part of the operation ring 19 along the circumferential direction. and.

Along one end surface of the slit 19a, the pinion gear 1
A rack gear (driving gear portion) 20 having a gear length sufficient to screw into the pinion gear 8 and rotate the pinion gear 18 by at least a rotation angle of 180° is provided. others,
A cylindrical exterior ring 21 is integrally coupled to the operating ring 19 so as to cover the entire outer peripheral surface of the operating ring 19, and is configured to rotate together with the operating ring 19. That is, the exterior ring 21 completely closes the slit 19a of the operation ring 19, and the outer peripheral surface of the exterior ring 21 is knurled to prevent slipping when directly gripped and rotated. facilities are provided for.

Next, the operation of the first embodiment of the above-described valve structure will be explained.

First, when the exterior ring 21 is directly gripped and rotated either clockwise or counterclockwise, the internal operation ring 19 rotates in response to the rotation of the exterior ring 21. The binion gear 18 also rotates via the rack gear 20. That is, the rotation of the exterior ring 21 around the valve axis XX is transmitted via the rotation frame 16 as the rotation of the valve body 15 around the gear axis YY, which is perpendicular to the valve axis 5X-X. . When the valve hole 15a of the valve body 15 communicates with the communication hole 14 on the valve seat 13 side.

The fluid flows from the upstream pipe P1 to the downstream pipe P as shown by arrow A.
It flows towards 2.

On the other hand, FIGS. 2(a), (b) and 3 show the second and third embodiments. In the second embodiment shown in FIGS. 2(a) and 2(b), the pinion gear 1 of the first embodiment described above is
8 and the rotating frame 16 are machined separately. That is, the binion gear 30 serving as a passive gear is coupled to the rotation frame 31 by a fastening member 32. An operating ring 34 is rotatably guided and in sliding contact with a guide groove 10a that is stepped on the outer periphery of the valve housing 10. A rack gear 35, which is a driving gear, is formed in a convex manner on a part of the outer peripheral surface of the operating ring 34 in the circumferential direction, and the teeth of the rack gear 35 and the pinion gear 30 are orthogonal to each other and mesh with each other. . In addition, the operation ring 34 has the slit 1 of the first embodiment.
A slit 34a is provided for the same purpose as 9a. The configuration of other members is the same as in the first embodiment, so the same reference numerals are given and the description of each member is omitted.

Next, in a third embodiment shown in FIG. 3, a needle valve 40 is used in place of the spherical valve body 15 of the first and second embodiments.

Therefore, inside the valve housing 10,
A partition wall 41 is provided so as to substantially vertically define a pipe diameter cross section, and a communication hole 42 is bored in the partition wall 41 to be closed or opened by the needle valve 40 in the vertical direction in the figure. In order to prevent co-rotation with the rotating frame 31, the fitting portion of the needle valve 40 with the valve housing 10 is formed to have an angular cross section. Other component configurations are given the same reference numerals as those in the first and second embodiments, and their explanations will be omitted.

In the first embodiment shown in FIG. 1, in order to know the rotation angle of the valve body 15, a matching mark 1. which indicates the zero position is placed on the guide groove 10a side of the valve housing 10. Ob is engraved, and a rotation angle scale 21b is displayed on the operation ring 21 side. However, instead of this display method, the 0 (Open) symbol and the S (Shut) symbol may be engraved on the exterior ring 21 at predetermined intervals like a normal valve.

Since FIG. 1(a) shows the valve in the open state, the 0 symbol coincides with the arrow on the valve housing 10 side. Therefore, the number of teeth of the pinion gear 18 is changed to, for example, the eighth tooth 1 as shown in the figure.
When 8a hits the operating ring 19 as a stopper, this state is the valve closing position and the S symbol matches the arrow. Also in the second embodiment shown in FIG. 2, it is preferable that a rotation angle scale 37 is displayed on the exterior ring 34 side in correspondence with the matching mark 36 engraved on the guide groove 10a side. The same applies to the third embodiment shown in FIG. It goes without saying that the above embodiments are not limited to ball valves, but can also be applied to other types of valves for various uses.

(Effects of the Invention) As can be understood from the above, according to the valve structure of the present invention, the valve interposed between the upstream and downstream picture body tubes is separated from the valve body unlike the conventional one. Since there is no protruding handle wheel, the valve is installed almost flush with the fluid pipe without protruding, so that the space equivalent to the protruding space of the conventional handle wheel in the piping equipment line can be effectively utilized.

In addition, there are no protruding obstacles, which makes the valve aesthetically pleasing, and since the valve opening and closing operations are performed around the valve axis, functionality is improved.

[Brief explanation of drawings]

1 to 3 show the first to third embodiments in which the valve structure according to the present invention is applied to a ball valve and a needle valve, and FIGS. FIG. 2(a) is a plan view, an external view, and a front sectional view of one embodiment. (b) is a plan view and a front sectional view of the second embodiment, and FIG.
FIG. 4 is a front sectional view of the embodiment, and FIG. 4 is a side external view showing an example of a conventional sluice valve. IO... Valve housing, 10a... Guide groove, 15... Mounting body. 18.30...Pinion gear (passive gear), 1
9.34... Operation ring (rotating operation member), 2
0.35... Rack gear (driving gear). 21...Exterior ring, 37...Rotation angle scale, 40...Needle valve.

Claims (4)

[Claims] (1) A valve housing having one end and the other end connected to upstream and downstream fluid pipes and having a fluid flow passage therein, and a valve housing that is installed inside the valve housing to open and close the flow passage. a cylindrical rotary rotatably fitted onto the outer peripheral surface of the valve housing so as to be rotatable around a valve axis from one end of the valve housing to the other end of the valve housing; A valve structure comprising: a movable operating member; and a transmission mechanism that transmits rotation of the rotary operating member to rotate the valve body. (2) The transmission mechanism includes a driving gear portion having teeth along one end surface of a slit bored in the circumferential direction of the rotation operating member, and a driving gear portion that meshes with the teeth of the driving gear portion to a passive gear rotatable around an axis perpendicular to the valve axis line; and a rotary member having one end coupled to the passive gear and the other end coupled to the valve body and rotatably supported by the valve housing. The valve structure according to claim 1, further comprising a rod. (3) The valve structure according to claim (1), wherein the valve body can rotate around an axis perpendicular to the valve axis via the transmission mechanism. (4) The valve structure according to claim (1), wherein the valve body is movable in a direction perpendicular to the valve axis via the transmission mechanism.