JP2007092956A - Valve with pressure gauge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a valve equipped with a pressure gauge having a display part visible easily. <P>SOLUTION: The valve 10 with the pressure gauge is structured so that an opening/closing valve 13 coupled with a handle part 12 is moved up and down by turning the handle part 12 horizontally, to control communication of an inlet hole 11j and outlet hole 11k of a housing part 11 where the handle part and the opening/closing valve are installed. In that case, the pressure gauge 14 is attached to the handle part 12 of the valve 10. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a valve with a pressure gauge.

In this type of valve with a pressure gauge, for example, as shown in Patent Documents 1 to 3 below, a pressure gauge is generally attached to a housing portion of the valve.
Japanese Patent Publication No. 6-33875 JP 2000-193197 A JP 2003-269696 A

  However, in the conventional valve with a pressure gauge, since the pressure gauge is attached to the housing portion along the outer surface thereof, there is a problem that it is difficult to visually recognize the display portion of the pressure gauge.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a valve with a pressure gauge in which the display part of the pressure gauge can be easily viewed.

In order to solve the above-described problems and achieve such an object, the valve with a pressure gauge of the present invention rotates the handle portion horizontally and moves the on-off valve connected to the handle portion up and down. A valve with a pressure gauge in which a pressure gauge is attached to a valve configured to control communication between an inlet hole and an outlet hole of a housing part to which the handle part and the on-off valve are attached, the pressure gauge being the handle It is attached to the part.
In this invention, since the pressure gauge is attached to the handle part, the display part of the pressure gauge can be easily viewed.

  Here, a handle portion that is provided to be horizontally rotatable in a state in which movement in the vertical direction is constrained at the upper end portion of the housing portion, and an on-off valve that is arranged to extend in the vertical direction inside the housing portion. A female screw guide portion is formed on the lower inner peripheral surface of the handle portion, and a male screw guide portion screwed with the female screw guide portion is formed on the upper outer peripheral surface of the on-off valve. Is formed with a valve chamber in which a lower end portion of the on-off valve is located and an inlet hole and an outlet hole communicating with the outside of the housing portion are opened, and when the handle portion is horizontally rotated, the male screw guide portion Is guided in the vertical direction along the female screw guide portion, so that the flow of the flow from the inlet hole to the outlet hole can be opened and closed by moving the open / close valve up and down. A valve with a pressure gauge provided with a pressure gauge capable of measuring the internal pressure, wherein an upper portion of the handle portion communicates with the female screw guide portion and opens toward the outside of the handle portion. The pressure gauge is in a state in which the interior thereof communicates with the introduction hole, and an introduction hole that extends in the vertical direction and communicates with the inlet hole is formed inside the on-off valve. In addition to being attached to the on-off valve, the display unit may be stored in the storage unit so as to face the opening.

  In this invention, since the pressure gauge is accommodated in the accommodating part formed in the handle part, it is possible to prevent other objects from colliding with the pressure gauge. Furthermore, since the pressure gauge is housed in the housing portion so that the display portion faces the opening of the housing portion, the display portion of the pressure gauge can be easily visually recognized. Further, since the pressure gauge is attached to the on-off valve in a state where the pressure gauge communicates with the introduction hole, the pressure gauge-equipped valve can be made compact.

In addition, at least a part of the outer surface of the on-off valve and the inner surface of the housing portion that are in contact with each other has a multi-surface shape in which a plurality of flat plate portions are connected by forming a ridge line extending in the direction in which the axis extends. May be.
In this case, when the handle portion is horizontally rotated, even if the rotational driving force is transmitted to the on-off valve, the ridge portion of the on-off valve is caught by the flat plate portion or the ridge portion of the housing portion. Can be prevented from rotating. Therefore, since the rotation of the pressure gauge attached to the on-off valve can be prevented, the pressure gauge can be further easily recognized.

Further, the pressure gauge may be covered with a case made of a light transmissive material.
In this case, while ensuring easy visibility of the display unit of the pressure gauge, it is possible to reliably prevent other objects from colliding with the pressure gauge and to protect the pressure gauge against dust and the like. And the durability of the pressure gauge can be improved.

  According to the valve with a pressure gauge according to the present invention, it is easy to visually recognize the display part of the pressure gauge.

Embodiments of the present invention will be described below with reference to the drawings.
In the valve 10 with a pressure gauge according to the present embodiment, the handle portion 12 and the on-off valve 13 are attached by horizontally rotating the handle portion 12 and moving the on-off valve 13 connected to the handle portion 12 up and down. A pressure gauge 14 is attached to a valve configured to control communication between the inlet hole 11 j and the outlet hole 11 k of the housing part 11, and in particular, the pressure gauge 14 is attached to the handle part 12. Details will be described below.

  A valve 10 with a pressure gauge is disposed at the upper end portion of the housing portion 11 so as to be horizontally rotatable in a state where movement in the vertical direction is constrained, and to extend vertically within the housing portion 11. And a female screw guide portion 12b is formed on the inner peripheral surface of the lower portion of the handle portion 12 (hereinafter referred to as "handle lower portion") 12a. A male screw guide portion 13e screwed with the female screw guide portion 12b is formed. The female screw guide portion 12b and the male screw guide portion 13e are left-handed screws.

  The handle portion 12 is grasped by a hand and includes a handle upper portion 12c connected to an upper end portion of the handle lower portion 12a, and is formed into a substantially cylindrical body. The handle upper portion 12c is formed with a hole 12d that opens to the lower end surface thereof, and a storage portion 12e that has a larger diameter than the hole 12d and opens to the upper end surface and communicates with the hole 12d. The holes 12d and the storage portion 12e are positioned coaxially with the rotation center axis O of the handle portion 12.

The handle lower portion 12a is fitted in the hole 12d of the handle upper portion 12c, and has a small diameter portion 12f in which the female screw guide portion 12b is formed on the inner peripheral surface, and is provided coaxially with the small diameter portion 12f. The large-diameter portion 12g disposed in the upper portion 11a of the portion 11 is substantially a two-stage cylindrical body. The female screw guide portion 12b formed on the inner peripheral surface of the small diameter portion 12f is formed coaxially with the rotation center axis O. Further, a rotation preventing member (not shown) is disposed between the outer peripheral surface of the small diameter portion 12f of the handle lower portion 12a and the inner peripheral surface of the hole 12d of the handle upper portion 12c.
As described above, in the handle portion 12, the female screw guide portion 12b formed in the lower portion 12a, the hole 12d and the storage portion 12e formed in the upper portion 12c are positioned coaxially with the rotation center axis O, It is set as the structure connected in the direction where this axis line O extends.

  The housing part 11 is composed of an upper part 11a, a central part 11b, and a lower part 11c, and a first male screw part 11e formed on the upper outer peripheral surface of the central part 11b is formed on the female screw part 11d formed on the inner peripheral surface of the upper part 11a. When the second male screw portion 11g formed on the lower outer peripheral surface of the central portion 11b is screwed with the female screw portion 11f formed on the inner peripheral surface of the lower portion 11c, the central portion 11b, the upper portion 11a and the lower portion are engaged. 11c is connected to each other by being screwed together.

  In the housing portion 11, a space 11i is formed between the upper end surface inside the upper portion 11a and the upper end surface of the central portion 11b, and the large diameter portion 12g of the handle lower portion 12a is disposed in the space 11i. Thrust washers 14 are provided between the upper end surface of the large diameter portion 12g and the upper end surface inside the upper portion 11a, and between the lower end surface of the large diameter portion 12g and the upper end surface of the central portion 11b. Yes.

  In addition, a space is formed between the lower end surface inside the lower portion 11c and the lower end surface of the central portion 11b, and this space is provided with a lower portion of the on-off valve 13 and an inlet hole communicating with the outside of the housing portion 11. The valve chamber 11m has an opening 11j and an outlet hole 11k. The inlet hole 11j is located coaxially with the rotation center axis O.

  The on-off valve 13 is coaxial with the rotation center axis O so that the lower end of the on-off valve 13 is positioned in the valve chamber 11m while the upper end of the on-off valve 13 is screwed into the female screw guide 12b formed on the handle lower portion 12a. The cylindrical body extends linearly. Further, in the opening / closing valve 13, there are formed introduction holes 13a extending in the vertical direction, that is, in the direction in which the rotation center axis O extends, and opening at the upper and lower end surfaces thereof. The introduction hole 13a is positioned coaxially with the rotation center axis O. Further, a sealing member 13b is provided on the lower end surface of the on-off valve 13 at the opening peripheral edge of the introduction hole 13a so as to be flush with the lower end surface. The seal member 13b has a ring shape in plan view. Further, in the present embodiment, a female thread portion is formed on the upper end surface of the on-off valve 13 coaxially with the rotation center axis O, and an introduction hole 13a is opened at the bottom surface of the female thread portion. That is, the introduction hole 13a opens to the upper end surface of the on-off valve 13 through the bottom surface of the female screw portion.

  Here, as described above, the inlet hole 11j, the introduction hole 13a, and the seal member 13b are formed coaxially with the rotation center axis O, and as shown in FIGS. 1 and 3, the inlet hole 11j. Has a larger diameter than the introduction hole 13a, and the seal member 13b has an inner diameter smaller than the inner diameter of the inlet hole 11j and an outer diameter larger than the inner diameter of the inlet hole 11j.

  That is, when the lower end surface of the on-off valve 13 and the bottom surface of the valve chamber 11m where the inlet hole 11j opens, the sealing member 13b contacts the opening peripheral edge of the inlet hole 11j on the bottom surface, whereby the inlet hole 11j. The valve chamber 11m and the outlet hole 11k are cut off.

  In the present embodiment, the pressure gauge 14 is disposed in the storage portion 12e of the handle upper portion 12c so that the display portion faces the opening 12n of the storage portion 12e that opens at the upper end surface of the handle upper portion 12c. ing. That is, when the upper end surface of the handle upper portion 12c is viewed in plan, the display unit of the pressure gauge 14 can be viewed from the front. The pressure gauge 14 is connected by being screwed to the female threaded portion formed on the upper end surface of the on-off valve 13, and is connected to the pressure gauge via an opening portion of an introduction hole 13a that opens to the bottom surface of the female threaded portion. 14 communicates with the introduction hole 13a. Thereby, the pressure in the inlet hole 11j can be measured by the pressure gauge 14 through the introduction hole 13a.

  In the present embodiment, the portion of the outer surface of the on-off valve 13 that comes into contact with the upper inner surface of the central portion 11b of the housing portion 11 has a plurality of flat plate portions 13c extending about the rotation center axis O. It has a polyhedral shape that forms a ridge line 13d extending in the direction. In addition, the inner surface of the upper portion of the central portion 11 b that contacts the multi-face shape of the on-off valve 13 also extends in the direction in which the axis O extends around the rotation center axis O, similarly to the on-off valve 13. It is made into the polyhedral shape which continues and makes the ridgeline 11p to do.

  That is, as shown in FIG. 2, the flat plate portion 13c and the ridge line 13d on the outer surface of the on-off valve 13 and the flat plate portion 11n and the ridge line 11p on the inner surface of the central portion 11b are in contact with each other, respectively. An on-off valve 13 is slidably inserted in the vertical direction on the inner surface of the upper part of the central part 11b. The flat plate portions 13c, 11n, the ridge line 13d, and the ridge line 11p have a size in a direction in which the rotation center axis O extends to be greater than or equal to a stroke in which the on-off valve 13 moves in the vertical direction, as will be described later. When moving up and down, the flat plate portions 13c and 11n and the ridge lines 13d and 11p are always in contact with each other.

  The pressure gauge 14 is covered with a case 14a made of a light transmissive material (for example, acrylic or glass). Further, the pressure gauge 14 has a circular shape in plan view, and a plurality of concave grooves 14b that are recessed inward in the radial direction for attaching a socket wrench are formed on the outer peripheral surface thereof.

  As described above, when the handle upper portion 12c is gripped and horizontally rotated around the rotation center axis O, the entire handle portion 12 including the handle lower portion 12a rotates. At this time, the upper and lower end surfaces of the large-diameter portion 12g of the handle lower portion 12a are sandwiched between the upper end surface inside the upper portion 11a of the housing portion 11 and the upper end surface of the central portion 11b. Although the female screw guide portion 12b is screwed into the male screw guide portion 13e of the on-off valve 13, the movement of the handle portion 12 in the vertical direction along the direction in which the rotation center axis O extends is prevented. The valve 13 moves in the vertical direction together with the pressure gauge 14 in a state where the rotational movement around the rotation center axis O is blocked, so that the lower end surface of the on-off valve 13 is the opening portion of the inlet hole 11j in the valve chamber 11m. Approach and separate.

  In addition, in the process in which the on-off valve 13 moves up and down, the inlet hole 11j and the introduction hole 13a are always in communication regardless of whether they are positioned at the upper and lower ends or not.

  As described above, according to the valve 10 with a pressure gauge according to the present embodiment, the pressure gauge 14 is disposed in the storage portion 12e formed in the handle portion 12, and therefore another object collides with the pressure gauge 14. Can be prevented. Furthermore, since the pressure gauge 14 is stored in the storage section 12e so that the display section faces the opening 12n of the storage section 12e, the display section of the pressure gauge 14 can be easily visually confirmed. . Moreover, since the pressure gauge 14 is attached to the on-off valve 13 in a state where the pressure gauge 14 communicates with the introduction hole 13a, the pressure gauge-equipped valve 10 can be made compact.

  Further, of the outer surface of the on-off valve 13, the portion facing the upper part of the central part 11 b of the housing part 11 has the multi-faced shape. Therefore, even when the rotational driving force is transmitted to the on-off valve 13 when the handle portion 12 is rotated horizontally, the portion of the ridge line 13d of the on-off valve 13 is the flat plate portion 11n or the ridge line of the housing portion 11. Since it is caught by 11p part, it can prevent that the on-off valve 13 rotates. Therefore, since the rotation of the pressure gauge 14 attached to the on-off valve 13 can also be prevented, the visual recognition of the pressure gauge 14 can be further facilitated.

  Furthermore, since the pressure gauge 14 is covered with the case 14a made of a light-transmitting material, it is ensured that other objects collide with the pressure gauge 14 while ensuring easy visual recognition of the display part of the pressure gauge. It becomes possible to prevent this, and it becomes possible to protect this pressure gauge 14 with respect to dust etc., and the durability of the pressure gauge 14 can be improved.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above embodiment, the pressure gauge 14 is connected to the upper end surface of the on-off valve 13 and the inside of the pressure gauge 14 communicates with the introduction hole 13a. Instead, the introduction hole 13a is connected to the on-off valve 13. It is also possible to make the opening and the pressure gauge 14 communicate with each other by opening the outer peripheral surface of the upper end portion through a female screw portion. In this case, instead of opening the storage portion 12e on the upper end surface of the handle upper portion 11b, the storage portion 12e is opened on the outer peripheral surface of the handle upper portion 11b, and the display portion of the pressure gauge 14 is opposed to the opening portion on the outer peripheral surface. You may do it.

Moreover, in the said embodiment, while the part which opposes the upper part of the center part 11b of the housing part 11 among the outer surfaces of the on-off valve 13 is made into the said polyhedral shape, the inner surface in the upper part of this center part 11b is the same as that of the on-off valve 13. However, such a polyhedral shape is not necessarily required.
Furthermore, in the said embodiment, although the pressure gauge 14 was covered with the case 14a, the case 14a does not need to be provided.
Furthermore, the pressure gauge 14 may be attached to the handle portion 12 so as to protrude from the outer surface of the handle upper portion 12c without being stored in the storage portion 12d.

  Provided is a valve with a pressure gauge in which the display part of the pressure gauge is easily visible.

It is a longitudinal section of a valve with a pressure gauge shown as one embodiment concerning the present invention. It is AA arrow sectional drawing of the valve with a pressure gauge shown in FIG. It is a BB arrow directional cross-sectional view of the valve with a pressure gauge shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Valve with pressure gauge 11 Housing part 11j Inlet hole 11k Outlet hole 11m Valve chamber 12 Handle part 12b Female thread guide part 12c Upper part of handle (upper part of handle part)
12d Storage part 12n Opening 13 On-off valve 13a Introduction hole 13c Flat plate part 13d Ridge line 13e Male thread guide part 14 Pressure gauge 14a Case

Claims (4)

A structure for controlling the communication between the inlet hole and the outlet hole of the housing part to which the handle part and the on-off valve are attached by horizontally rotating the handle part and vertically moving the on-off valve connected to the handle part; A pressure gauge with a pressure gauge attached to the valve,
The valve with a pressure gauge, wherein the pressure gauge is attached to the handle portion. A handle portion provided at the upper end portion of the housing portion so as to be horizontally rotatable in a state in which movement in the up-down direction is constrained, and an on-off valve arranged to extend in the up-down direction inside the housing portion, A female screw guide portion is formed on the lower inner peripheral surface of the handle portion, and a male screw guide portion screwed with the female screw guide portion is formed on the upper outer peripheral surface of the on-off valve,
A lower end portion of the on-off valve is located at a lower portion of the housing portion, and a valve chamber having an inlet hole and an outlet hole communicating with the outside of the housing portion is formed.
When the handle portion is horizontally rotated, the male screw guide portion is guided in the vertical direction along the female screw guide portion, whereby the on-off valve moves up and down, thereby causing the inlet hole to the outlet hole to move up and down. A valve with a pressure gauge provided with a pressure gauge capable of measuring the pressure in the inlet hole in a valve whose flow is openable and closable;
A storage portion having an opening communicating with the female screw guide portion and opening toward the outside of the handle portion is formed at an upper portion of the handle portion, and extends vertically in the on-off valve. In addition, an introduction hole communicating with the inlet hole is formed, and the pressure gauge is attached to the on-off valve in a state in which the pressure gauge communicates with the introduction hole, and the display unit faces the opening. A valve with a pressure gauge, housed in the housing part. The valve with a pressure gauge according to claim 2,
At least a part of the outer surface of the on-off valve and the inner surface of the housing portion that are in contact with each other has a multi-surface shape in which a plurality of flat plate portions are connected by forming a ridge line extending around the axis in the direction in which the axis extends. This is a valve with a pressure gauge. The valve with a pressure gauge according to claim 2 or 3,
The pressure gauge is covered with a case made of a light-transmitting material.

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