JP2003130238A - Plier valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a relatively simple and low-cost plier valve installed on a pipe for a hot spring capable of eliminating the deterioration of a member or the stick of fluid components, or the like securely opening/closing the valve for a long time and sharply reducing hard works at a place like a hot spring inn. SOLUTION: This plier valve 1 is constituted of a silicone tube 3 with a predetermined length arranged inside a case 2, a fixed plier member 5 and a movable plier member 5 arranged so as to pinch the middle part of the tube, a spindle 6 and a wheel 7 for forwardly and backwardly moving the movable plier member 6 for the fixed plier member 4 and stainless steel bands 8 arranged on right and left end parts of the tube 3. A connection tube 20 is used for connecting the tube 3 and the pipe. A plurality of rows of disc type protruding pieces (walls) 3a are integrally protruded on right and left sides of the tube 3 to have a room for deformation due to pinching of the tube 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pliers valve installed in a fluid pipe and capable of opening and closing the passage from the outside of the passage, and is particularly effectively applied to a hot spring pipe.

[0002]

2. Description of the Related Art A large number of valves for distributing hot springs are provided in a hot spring source machine room or the like. A ball type or a partition plate type having an internal structure has been conventionally used for this type of valve. The ball type has a hole in the center of the ball valve, and is a structure that opens and closes when rotated left and right. The partition plate type has a structure in which a plate valve opens and closes vertically.

[0003]

Since the conventional valve has a structure in which a fluid flows inside, when a hot spring containing various components is passed through, the member deteriorates after reacting with oxygen in the atmosphere, and At that time, there was a problem that crystals and yuka were stuck to the valve, and the handle of the valve could not be moved to the left and right by hand force (opening and closing operation).

The number of valves used for hot spring distribution is about 40 to 60 on average per inn (source machine room),
For example, the hot spring at Kamasaki is out of service for about 90 days, and the sulfur hot springs such as Tamagawa hot spring and Zao hot spring are unavailable for about 30 days. The valve that has become unusable is replaced with a new rubber piece by removing the rotating part, and since the number of valves is extremely large, it is one of the difficult tasks at the inn.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to prevent deterioration of members, sticking of fluid components, and the like, and to reliably perform opening / closing operations for a long period of time. Another object of the present invention is to provide a relatively simple and inexpensive pliers valve that can significantly reduce heavy work such as hot spring accommodation.

[0006]

According to a first aspect of the present invention, there is provided a flexible tube having a predetermined length, the flexible tube being installed in a fluid pipe and capable of opening and closing a flow path. A stationary pliers member and a movable pliers member arranged so as to sandwich the middle portion of the flexible tube, a mechanical linear drive mechanism for moving the movable pliers member back and forth with respect to the stationary pliers member, and a flexible tube. Is a pliers valve provided with fastening members for pipe connection arranged at both left and right ends of the pliers valve.

The pliers valve of the present invention is an externally actuated type which crushes and opens and closes a flexible tube by an operation from the outside. For example, it is installed in a hot spring pipe and has a relatively large flow path (flexible tube). Inner diameter of 20 mm or more). Various materials such as rubber can be used for the flexible tube, and silicone rubber having high durability against fatigue, chemicals, high temperature and the like is preferable.

As the mechanical linear drive mechanism, a worm and gear system may be considered, but a simple system of a spindle and a handle with a male screw screwed to a nut member / support member is preferable. The stationary pliers and the movable pliers are plate-shaped members that traverse the flexible tube and are arranged vertically or horizontally with the flexible tube sandwiched between them. Has a roundness R that curves in the tube longitudinal direction so as not to damage the flexible tube.

According to a second aspect of the present invention, in the pliers valve according to the first aspect, the flexible tube integrally protrudes outward from the outer surface of the flexible tube on both left and right sides of the pliers member. The pliers valve is characterized in that a protruding piece is formed. The projecting piece (fold) is preferably a disk-shaped one that is continuous in the circumferential direction, and is arranged in one or a plurality on one side.

The fastening member for connecting the pipe is preferably a stainless band. It is preferable to use a connecting pipe for connecting the pipes, and an intermediate portion of the connecting pipe is fixed to a side plate of the case,
Insert (externally) the end of the flexible tube into one end of the connecting pipe located inside the case, secure it with a fastening member, and screw a pipe such as a hot spring into the other end of the connecting pipe protruding outside the case. Etc. to connect. However, the present invention is not limited to this, and it is also possible to insert the pipe directly into the end of the flexible tube and fasten it with a fastening member.

In the present invention having the above-mentioned structure, (1)
Since the fluid passes through the flexible tube and the other valve members do not come into direct contact with the fluid, there is no deterioration of the valve member, and there is no sticking of crystals or hot water, and it is possible to eliminate the situation where the open / close handle does not move. The open / close operation can be reliably performed over a long period of time.

(2) Even if the flexible tube is easily settled, it can be easily replaced by an amateur even by opening the protective cover of the case and loosening the fastening members such as the left and right stainless bands.

(3) The valve member is composed of a flexible tube, a pliers member, a spindle and a handle, and can be a relatively simple and inexpensive valve.

(4) When the flexible tube is sandwiched by a pair of pliers members and both left and right ends are pulled by providing one or a plurality of protruding pieces on each of the left and right sides of the flexible tube, The deformation can be absorbed, the flexible tube can be prevented from coming off the pipe, and the restoring force can be increased to easily restore the original shape.

(5) By using the connecting pipe for connecting the flexible tube and the pipe, the connection between the flexible tube and the pipe becomes easy.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described based on an illustrated embodiment. FIG. 1 shows a basic structure when the pliers valve of the present invention is applied to hot spring piping. FIG. 2 shows the specific structure (assembly type, casting type).

As shown in FIG. 1, a pliers valve 1 of the present invention mainly comprises a case 2 for accommodating a valve member, a silicone tube 3 (flexible tube) having a predetermined length, and a lower part inside the case 2. Installed on the stationary pliers 4 (stationary pliers) that also serves as a pliers member and tube stand, the movable pliers 5 (movable pliers) placed on the stationary pliers 4, and the movable pliers 5 are moved up and down. Spindle 6 and handle 7 for opening and closing (mechanical linear drive mechanism)
And a stainless band 8 (fastening member) for connecting the pipe P and the like to both ends of the silicone tube 3.

As shown in FIG. 2, the case 2 includes a panel frame 10 having a rectangular frame shape when viewed from the front, and a panel frame 10
The protective cover 11 covers the front surface of the panel frame 10, the back cover 12 covers the back surface of the panel frame 10, and the side panels 13 and 13 cover both side surfaces of the panel frame 10, respectively. The protective cover 11, the back cover 12, and the side panel 13 are attached to the panel frame 10 with screws 14 or the like,
It is designed so that it can be easily installed and removed.

For example, the silicone tube 3 having the following dimensions is used, and the central portion thereof is set in the case 2 so as to be pinched and crushed by the stationary pliers 4 and the movable pliers 5 from above and below, In addition, opening and closing the flow path by moving the movable pliers 5 up or down, or
It is crushed so that the flow rate can be adjusted arbitrarily. Inner diameter D = 20 mm → Length L = 90 mm Inner diameter D = 30 mm → Length L = 110 mm Inner diameter D = 40 mm → Length L = 130 mm Inner diameter D = 50 mm → Length L = 140 mm Inner diameter D = 60 mm → Length L = 150 mm (Wall thickness t = 2 mm)

Further, on both sides of the central portion of the silicone tube 3, there are integrally formed disc-like projecting pieces (folds) 3a projecting outward from the outer surface by a predetermined length. The protruding piece 3a is a member for absorbing the deformation when the central portion of the silicone tube 3 is crushed and the left and right sides of the silicone tube 3 are pulled toward the central portion, and for easily returning to the original shape. Therefore, it is preferable to dispose about two stations on each side. In addition,
The projecting pieces 3a have dimensions of, for example, a projecting height of 8 mm, a plate thickness of 2 mm, and an interval of 2 mm in the case of a plurality of stations.

The stationary pliers 4 is a plate made of metal, plastic, etc., and a roundness R curved in the longitudinal direction of the tube is attached to the upper part thereof to prevent the silicone tube 3 from being damaged. In addition, the stationary pliers metal fitting 4 is arranged in the central portion of the bottom plate of the panel frame 10 so as to be orthogonal to the silicone tube 3 as shown in FIG. 2 (a), and as shown in FIG. 2 (b), for example, The protruding portion 4a formed at one end is inserted into the hole of the back cover 12, and the protruding portion 4b formed at the other end is fitted into the cutout groove of the protective cover 11 to be fixed.

The movable pliers 5 is also a plate made of metal, plastic, or the like, and a roundness R curved in the longitudinal direction of the tube is attached to the lower part thereof to prevent the silicone tube 3 from being damaged. The spindle 6 is connected to the upper part of the movable pliers fitting 5.

A male screw such as a square screw is formed on the spindle 6, and a spindle support member 9 which is a nut member.
Be screwed into. The spindle supporting member 9 is fixed to the upper plate of the panel frame 10, and the spindle 6 and the movable pliers 5 are moved up and down by rotating the spindle 6 forward and backward with the handle 7.

The length of the silicone tube 3 is the case 2
The length is set so that it can be accommodated inside, and the connection tube 20 is used to support both ends of the silicone tube 3 and connect the silicone tube 3 and the hot spring piping P. That is, the connecting pipe 20 having a predetermined length is inserted into the mounting hole formed in the side plate 2a of the case 2, the middle portion of the connecting pipe 20 is fixed to the side plate 2a, and both ends of the connecting pipe 20 project into the case and outside the case. To Both ends of the silicone tube 3 are externally fitted to the ends of the connecting pipe 20 projecting into the case 2, and are fixed by the stainless band 8. A male screw is formed at the end of the connecting pipe 20 projecting outward from the case 2, and a hot spring pipe P having a female screw at the tip is connected by screwing. The connection is not limited to the screw as described above, and flange connection or the like may be used.
The side panel 13 is provided with an opening as shown in FIG. 2 (c).

The use of the connecting pipe 20 as described above has an advantage that the silicone tube 3 and the pipe P can be easily connected. However, in some cases, the hot spring pipe may be provided at both ends of the silicone tube 3. It is also possible to insert the end portion of P directly and fix it with the stainless band 8.

In the pliers valve 1 having the above-mentioned structure, the fluid passes through the silicone tube 3 and the other valve members do not come into direct contact with the fluid, so that the valve member is not deteriorated and crystals and hot water are not stuck. Therefore, it is possible to eliminate the situation where the opening / closing handle 7 does not move, and the opening / closing operation can be reliably performed for a long period of time.

Further, the silicone tube 3 is strong against "sagging" and has high durability against chemicals and high temperatures,
Even in the unlikely event of settling, even an amateur can easily replace it by opening the protective cover 11 and loosening the left and right stainless steel bands 8.

Although the example applied to the hot spring piping has been described above, it is needless to say that the present invention can be applied to other fluid piping as well.

[0029]

According to the pliers valve of the present invention, a flexible tube having a predetermined length arranged in a case, a stationary pliers member arranged so as to sandwich an intermediate portion of the flexible tube, and a movable pliers member. Since it is provided with a pliers member, a mechanical linear drive mechanism for moving the movable pliers member forward and backward with respect to the stationary pliers member, and a fastening member for pipe connection arranged at both left and right ends of the flexible tube, The following effects can be achieved.

(1) Since the fluid passes through the flexible tube and the other valve members do not come into direct contact with the fluid, there is no deterioration of the valve member, no crystals or hot water stick, and the open / close handle does not move. The situation can be eliminated, and the opening / closing operation can be reliably performed for a long period of time. As a result, it is possible to significantly reduce heavy work such as a hot spring inn that uses many valves.

(2) Even if the flexible tube is easily settled, it can be easily replaced by an amateur by simply opening the protective cover of the case and loosening the fastening members such as the left and right stainless bands.

(3) The valve member is composed of a flexible tube, a pliers member, a spindle and a handle, and can be a relatively simple and inexpensive valve.

(4) When the flexible tube is sandwiched by a pair of pliers members and the left and right ends are pulled by providing one or a plurality of projecting pieces on both the left and right sides of the flexible tube, The deformation can be absorbed, the flexible tube can be prevented from coming off the pipe, and the restoring force can be increased to easily restore the original shape.

(5) By using the connecting pipe for connecting the flexible tube and the pipe, the connection between the flexible tube and the pipe becomes easy.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a basic structure of a pliers valve of the present invention.

2A is a front view, FIG. 2B is a sectional view, and FIG. 2C is a side view showing an example of a specific structure of a pliers valve of the present invention.

[Explanation of symbols]

1 ... Pliers valve 2 ... Case 3 ... Silicone tube (flexible tube) 3a ... protruding piece 4 Stationary pliers (stationary pliers member) 5: Movable pliers (movable pliers member) 6 ... Spindle 7 ... Handle 8 ... Stainless band 9 ... Spindle support member 10 ... Panel frame 11 ... Protective cover 12 ... Back cover 13 ... Side panel 14 ... Screw 20 ... Connection tube

Claims (2)

[Claims] 1. A valve which is installed in a fluid pipe and which can open and close a flow path, and which holds a flexible tube of a predetermined length disposed in a case and an intermediate portion of the flexible tube. A fixed pliers member and a movable pliers member, a mechanical linear drive mechanism for moving the movable pliers member back and forth with respect to the stationary pliers member, and a pipe connection arranged on both left and right ends of the flexible tube. A pliers valve, which is provided with a fastening member. 2. The pliers valve according to claim 1, wherein projecting pieces integrally projecting outward from an outer surface of the flexible tube are formed on both left and right sides of the flexible tube centering on the pliers member. A pliers valve that is characterized by being.