JP2010276160A - Valve device and piping system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a valve device and a piping system for smoothly operating, and for improving durability, by avoiding accumulation of liquid, by simply, easily, freely and inexpensively changing a position of a valve in a short time. <P>SOLUTION: This valve device 10 includes a valve casing 11 detachably installed on the outer periphery of a flexible pipe 20 having a flow passage for constituting a pipe and a valve driving means for changing the cross-sectional area of the flow passage 20a by push-moving the flexible pipe 20. The valve driving means includes a push-moving means for push-moving a part of the flexible pipe 20 and a driving means for operating the push-moving means. The valve casing 11 includes a pair of divided cylinder cases 11a and 11b for covering the outer periphery of the flexible pipe 20, a connecting shaft 11c for rotatably connecting a base part of the pair of divided cylinder cases 11a and 11b, and a fixing member 11d for fixing a loose end part of the pair of divided cylinder cases 11a and 11b. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a valve device and a piping system for adjusting or opening / closing a flow rate of a fluid flowing through a flow path.

  For example, pipes in factories that are intended to transport liquids have multiple pipes integrated, branched, or connected to various devices, so it is possible to provide valve devices for flow rate, pressure adjustment, opening and closing, etc. Many. Alternatively, piping is complicatedly connected to equipment for experiments, tests, inspections, and the like. In such factory piping and piping for experiments, tests, inspections, etc., multiple pipes may be integrated, branches may be changed, and connections with various equipment may be changed. In many cases, the mounting position of the valve device for adjustment, opening and closing is changed. In such a valve device, a ball valve, a butterfly valve, and a needle valve are usually used. In addition, for example, a plate-like valve having rubber elasticity is used for the valve device, and it is opened when water pressure or atmospheric pressure is applied from the opposite side of the opening provided with the valve, and is excellent in sealing performance and durability. (Patent Document 1).

JP 2000-87412 A

  These ball valves, butterfly valves, needle valves and other valve devices are all connected to rubber, resin, or metal piping, and even if you want to change the position of the valve device after piping, you can change the length of the piping. It is necessary to connect the valve device from the beginning, and there are problems such as troublesome and time-consuming work and high cost.

  The present invention solves these problems, and can easily and easily freely change the position of the valve in a short time and at a low cost, avoids liquid stagnation, operates smoothly, It is another object of the present invention to provide a valve device and a piping system that can improve durability.

  In order to solve the above-described problems and achieve the object, the present invention is configured as follows.

The invention according to claim 1 is a valve casing that is detachably attached to the outer periphery of a flexible pipe having a flow path that constitutes piping.
A valve device comprising: valve driving means that pushes the flexible pipe to change a cross-sectional area of the flow path.

The invention according to claim 2 is characterized in that the valve driving means is
A pushing means for pushing a part of the flexible pipe;
The valve device according to claim 1, further comprising a driving unit that operates the pushing unit.

The invention according to claim 3 is characterized in that the valve casing is
A pair of split cylinder cases covering the outer periphery of the flexible pipe;
A connecting shaft that rotatably connects the bases of the pair of split cylindrical cases;
The valve device according to claim 1, further comprising a fixing member that fixes a free end portion of the pair of split cylindrical cases.

  The invention according to claim 4 is the valve device according to claim 3, characterized in that an elastic body is provided on the inner surface of the pair of split cylindrical cases covering the outer periphery of the flexible pipe.

The invention according to claim 5 is a piping system that branches from a main pipe into a plurality of branch pipes,
The main pipe and the branch pipe are composed of a flexible pipe having a flow path,
A piping system comprising the flexible pipe and the valve device according to any one of claims 1 to 4.

  With the above configuration, the present invention has the following effects.

  In the first aspect of the invention, the valve casing can be attached to and detached from the outer periphery of the flexible pipe, and the flexible pipe is pushed to change the cross-sectional area of the flow path by changing the mounting position of the valve casing. Thus, the position of the valve can be freely and easily changed in a short time and at a low cost. In addition, since the flow rate of the fluid flowing through the flow path is adjusted or opened and closed by changing the cross-sectional area of the flow path, there is no part of the seal with the shaft in the flow path, avoiding liquid stagnation, impinging on impurities, etc. The valve operates smoothly, and durability can be improved without damage to the seal member.

  In the invention according to claim 2, by pushing a part of the flexible pipe, the cross-sectional area of the flow path can be changed, and the flow rate of the fluid flowing through the flow path can be adjusted or opened and closed. It can be operated with the structure and the number of parts can be reduced.

  In the invention according to claim 3, the position of the valve can be freely changed in a short time and at low cost by a pair of split cylindrical cases covering the outer periphery of the flexible pipe. it can.

  In the invention according to claim 4, by providing an elastic body on the inner surface covering the outer periphery of the flexible pipe of the pair of split cylindrical cases, the flexible pipe can be easily and easily damaged without being damaged. In addition, the position of the valve can be changed in a short time and at a low cost.

  In invention of Claim 5, the main piping and branch piping of a piping system are comprised by the flexible pipe which has a flow path, and it equips with a valve apparatus in a flexible pipe, and it can be carried out simply and easily, freely The position of the valve can be changed in a short time and at a low cost. In addition, the valve device changes the cross-sectional area of the flow path of the flexible pipe to adjust or open or close the flow rate of the fluid flowing through the flow path, so there is no part of the seal with the shaft in the flow path and avoids liquid retention In addition, there is no impingement of impurities, the valve operates smoothly, and the durability can be improved without damage to the seal member.

It is a figure which shows the piping system which intended transportation of the liquid. It is a perspective view of the valve device of a 1st embodiment. It is a figure which shows the attachment state of the valve apparatus of 1st Embodiment. It is sectional drawing which shows the attachment state of the valve apparatus of 1st Embodiment. It is sectional drawing which shows the operating state of the valve apparatus of 1st Embodiment. It is sectional drawing which follows the VI-VI line of FIG. It is sectional drawing which shows the attachment state of the valve apparatus of 2nd Embodiment. It is sectional drawing which shows the operating state of the valve apparatus of 2nd Embodiment. It is a figure explaining the valve apparatus of 3rd Embodiment. It is sectional drawing which shows the attachment state of the valve apparatus of 4th Embodiment. It is sectional drawing which shows the operating state of the valve apparatus of 4th Embodiment. It is a figure explaining the valve apparatus of 5th Embodiment.

  Embodiments of the valve device and the piping system of the present invention will be described below. The embodiment of the present invention shows the most preferable mode of the present invention, and the present invention is not limited to this.

[Configuration of piping system]
FIG. 1 is a diagram showing piping intended to transport a liquid. When the pump 101 is driven, the raw material is supplied from the raw material tank 102 to each device 105 via the main piping 103 and the branch piping 104, It is piping for experiments, tests, inspections, etc. As described above, since a plurality of pipes are integrated, branched, or connected to various devices 105, the valve device 10 is provided for flow rate, pressure adjustment, opening and closing, etc. Alternatively, the valve device 10 may be added or abolished by adding piping, or the installation position may be changed.

The pipes constituting the main pipe 103 and the branch pipe 104 in such factories, experiments, tests, inspections, etc. are formed of flexible members such as resin and rubber, and this pipe has a flexible passage. The valve device 10 is detachably attached to the outer periphery of the flexible pipe.
[Configuration of valve device]
(First embodiment)
Next, the valve device 10 will be described with reference to FIGS. 2 is a perspective view of the valve device, FIG. 3 is a view showing a mounted state of the valve device, FIG. 4 is a sectional view showing the attached state of the valve device, FIG. 5 is a sectional view showing the operating state of the valve device, and FIG. It is sectional drawing which follows the VI-VI line of FIG.

  The valve device 10 includes a valve casing 11 and a valve driving means 4. The valve casing 11 includes a pair of split cylindrical cases 11a and 11b, a connecting shaft 11c, and a fixing member 11d. The pair of split cylinder cases 11a and 11b are formed of metal, resin, or the like, and have a shape that covers the outer periphery of the flexible pipe 20 having the flow path 20a constituting the pipe, and are parallel to the axial direction of the flow path 20a. It is divided into two. The connecting shaft 11c rotatably connects the bases of the pair of split cylinder cases 11a and 11b. 11 d of fixing members are comprised with a volt | bolt and a nut, and clamp | tighten and fix the flanges 11a1 and 11b1 formed in the free end part of a pair of division | segmentation cylinder cases 11a and 11b.

  The valve driving means 4 pushes the flexible pipe 20 to change the cross-sectional area of the flow path 20a. The valve driving means 4 includes a pushing means A for pushing a part of the flexible pipe and a driving means B for actuating the pushing means A. The pushing means A is composed of a rod 40, and the rod 40 is movably inserted through a mounting portion 11a2 formed at the center of the split cylinder case 11a, and pushes the tip of the rod 40 from a direction perpendicular to the flow path 20a. The moving part 40a pushes a part 20b of the flexible pipe 20.

  The driving means B includes an operation lever 41, a cam pin 42, a support pin 43, and the like. The operation lever 41 is supported by the support portion 11a3 of the split cylinder case 11a via a support pin 43 so as to be rotatable in a direction orthogonal to the flow path 20a. A cam groove 41a is formed in the operation lever 41, and a cam pin 42 fixed to the rod 40 is movably inserted.

  In the position shown in FIG. 4 where the operation lever 41 is not operated, the pushing portion 40a of the rod 40 does not push the part 20b of the flexible pipe 20, so that the cross-sectional area of the flow path 20a does not change and the valve Open state.

  When the operation lever 41 is operated in the valve closing direction, the cam pin 42 fixed to the rod 40 moves along the cam groove 41a to the position shown in FIG. At this time, the pushing portion 40a of the rod 40 pushes a part 20b of the flexible pipe 20 to change the direction in which the cross-sectional area of the flow path 20a is reduced, thereby adjusting the flow rate of the fluid flowing through the flow path 20a. close. 5 and 6 are in a closed state. If the operation of the operation lever 41 in the valve closing direction is stopped halfway, the flow rate of the fluid flowing through the flow path 20a can be adjusted, and when fully operated, the flow rate of the fluid flowing through the flow path 20a is closed. become.

  When the operation lever 41 is operated in the valve opening direction, the cam pin 42 fixed to the rod 40 moves in the direction of returning along the cam groove 41a to the position shown in FIG. At this time, the pushing portion 40a of the rod 40 does not push the part 20b of the flexible pipe 20, and the restoring force of the flexible pipe 20 changes the direction of increasing the cross-sectional area of the flow path 20a. The flow rate of the fluid flowing through the passage 20a is adjusted or opened. In the position shown in FIG. If the operation of the operation lever 41 in the valve opening direction is stopped halfway, the flow rate of the fluid flowing through the flow path 20a can be adjusted.

  Thus, the valve casing 11 can be attached to and detached from the outer periphery of the flexible pipe 20, and the flexible pipe 20 is pushed to change the cross-sectional area of the flow path 20a by changing the mounting position of the valve casing 11. The position of the valve can be freely changed in a short time and at a low cost, simply and easily.

  In particular, the valve casing 11 is configured by a pair of split cylindrical cases 11a and 11b covering the outer periphery of the flexible pipe 20, so that the valve casing 11 can be easily and easily fixed to cover the outer periphery of the flexible pipe 20 and freely. The position of the valve can be changed in a short time and at a low cost.

  Further, since the pushing portion 40a of the rod 40 pushes a part 20b of the flexible pipe 20 to change the cross-sectional area of the flow path 20a, the flow rate of the fluid flowing through the flow path 20a is adjusted or opened and closed. There is no part of the seal with the shaft in the passage 20a, the liquid stay is avoided, the impurities are not caught, the valve operates smoothly, and the durability can be improved without damage to the seal member.

  In addition, a valve driving means 4 is provided, and by pushing a part 20b of the flexible pipe 20 from the outside, the cross-sectional area of the flow path 20a is changed, and the flow rate of the fluid flowing through the flow path 20a is adjusted or opened / closed. This eliminates the need for a seal member and the like, enables operation with a simple structure, and reduces the number of parts.

(Second Embodiment)
The valve device of the second embodiment will be described with reference to FIGS. FIG. 7 is a cross-sectional view in the valve open state, and FIG. 8 is a cross-sectional view in the valve closed state. In the valve device 10 of the second embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the valve driving means 4 of the second embodiment, the pushing means A is composed of a rod 40, and the driving means B is composed of a hydraulic cylinder or an electromagnetic solenoid that reciprocates the rod 40, with respect to the flow path 20a. Thus, the pushing portion 40a of the rod 40 pushes a part 20b of the flexible pipe 20 from a direction orthogonal to each other.

(Third embodiment)
The valve device according to the third embodiment will be described with reference to FIG. FIG. 9A is a sectional view in the valve open state, and FIG. 9B is a sectional view in the valve closed state. In the valve device 10 of the third embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In this third embodiment, the pushing means A is composed of a rod 40, and the driving means B is composed of a worm gear mechanism 44 that reciprocates the rod 40. On the other hand, the pushing portion 40a of the rod 40 pushes a part 20b of the flexible pipe 20 from a direction perpendicular to the rod 40.

(Fourth embodiment)
The valve device according to the fourth embodiment will be described with reference to FIGS. FIG. 10 is a cross-sectional view in the valve open state, and FIG. 11 is a cross-sectional view in the valve closed state. In the valve device 10 of the fourth embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. The pushing means A of the fourth embodiment is constituted by a needle 45, and the needle 45 is screwed to the valve casing 11. The driving means B is composed of an operation cap 46 fixed to the head of the needle 45, and the pushing portion of the rod 40 from the direction orthogonal to the flow path 20a when the operation cap 46 rotates and the needle 45 rotates integrally. 40a pushes a part 20b of the flexible pipe 20. The amount of movement of the needle 45 is determined by the amount of rotation of the operation cap 46, and the cross-sectional area of the flow path 20a can be changed to adjust or open / close the flow rate of the fluid flowing through the flow path 20a.

(Fifth embodiment)
Next, in the valve device 10 of the first to fourth embodiments, the inner surface that covers the outer periphery of the flexible pipe 20 of the pair of split cylinder cases 11a and 11b constituting the valve casing 11 is elastic. Body 30a, 30b is provided. In this way, by providing the elastic bodies 30a and 30b to the pair of split cylinder cases 11a and 11b, the position of the valve can be freely and easily set in a short time without damaging the flexible pipe 20. And it can be changed at low cost.

  The present invention can be applied to a valve device that adjusts or opens / closes the flow rate of a fluid flowing through a flow path, and can easily and easily freely change the position of the valve in a short time and at low cost. It avoids stagnation of liquid, operates smoothly, and improves durability.

4 valve driving means 10 valve device 11 valve casing 11a, 11b split cylinder case 11c connecting shaft 11d fixing member 20 flexible pipe 20a flow path of flexible pipe 20 20b part of flexible pipe 3 40 rod 40a rod 40 41 Operation lever 41a Cam groove of the operation lever 41 42 Cam pin 43 Support pin 44 Operation handle 45 Needle 46 Operation cap A Pushing means B Driving means

Claims (5)

A valve casing removably attached to the outer periphery of a flexible pipe having a flow path constituting the pipe;
A valve device comprising: valve driving means for pushing the flexible pipe to change a cross-sectional area of the flow path. The valve driving means includes
A pushing means for pushing a part of the flexible pipe;
The valve device according to claim 1, further comprising drive means for actuating the pushing means. The valve casing is
A pair of split cylinder cases covering the outer periphery of the flexible pipe;
A connecting shaft that rotatably connects the bases of the pair of split cylindrical cases;
The valve device according to claim 1, further comprising a fixing member that fixes a free end portion of the pair of split cylindrical cases.   The valve device according to claim 3, wherein an elastic body is provided on an inner surface of the pair of split cylindrical cases covering an outer periphery of the flexible pipe. A piping system that branches from the main pipe into multiple branch pipes.
The main pipe and the branch pipe are composed of a flexible pipe having a flow path,
A piping system comprising the valve device according to any one of claims 1 to 4 in the flexible pipe.