JP5544483B2 - Pinch valve sleeve - Google Patents

Description

  The present invention relates to a pinch valve sleeve, and more particularly to a pinch valve sleeve in sanitary piping that can be easily disassembled and assembled, and can be easily cleaned and sterilized.

  In recent years, due to the diversification of the living environment, foods, medicines, cosmetics, etc. manufactured using this type of sanitary piping are increasing, but as is well known, this type of sanitary piping is used after use, In each case, it must be able to be cleaned and sterilized immediately, and it can be easily disassembled and assembled, and it is configured not to make irregularities inside so that fluid products do not remain. The valves are built in to stop the flow of fluid products and throttle the flow, and the valves such as gate valves and ball valves are complicated in structure, and it takes time and effort to disassemble and wash. This is the present situation.

For example, as previously disclosed, a thick portion is formed at both ends of the sleeve and a flange portion is formed, and a body is formed of a thermoplastic resin, and a thermoplastic resin integrally heat-sealed and bonded to both ends of the body. It is characterized in that the flange portion of the sleeve is sandwiched and sealed by heat fusion bonding between the main body and the end, and the thick portion of the end portion is prevented from being pulled out. Further, a pinch valve (refer to Patent Document 1), characterized in that an annular small protrusion is provided on the inner surface of the sleeve, a flexible tube 1 that allows a transfer object to pass through, and an outer side of the flexible tube 1 are arranged. In addition, a valve structure (see Patent Document 2) that includes a pair of pinching members 2 that allow at least one of them to reciprocate is disclosed.
JP 07-280108 A JP 2000-25890 A

  However, in Patent Document 1 disclosed above, an annular small protrusion is provided on the inner surface of the sleeve, which may be suitable for stopping the flow of the pinch valve. In addition, in the patent document 2, it is a pinch valve that has been conventionally used. That is, this type of pinch valve has a sleeve around the outer periphery. Although the flow of the fluid substance is stopped by pressing by some means from the direction and crushing the inner diameter, it was necessary to absorb the axial shrinkage caused by crushing from the circumferential direction without affecting the surrounding parts .

  In view of the above problems, the present invention solves these problems as a result of diligent study, and is a pinch valve sleeve in a sanitary pipe, which has a length, a diameter, a wall thickness, and a flexibility, A flange portion in which both ends of the sleeve main body are bulged in an outer peripheral direction, and a ring portion having a semicircular cross section that bulges on both surfaces between an inner diameter and an outer diameter of the flange portion. In addition to forming the ring part integrally, the wall thickness of the sleeve body is such that only the outer diameter is reduced without changing the diameter of the inner diameter, and the center side is formed thinner than the side edges, The wall thickness of the sleeve body is provided with a thick part with a constant thickness on both side edges, a tapered part that reduces only the outer diameter is provided inside the thick part, and a thin part with a constant thickness is provided between the tapered parts. The sleeve body and A flange portion and a ring portion is obtained by forming a flexible rubber or thermal flexible elastomer.

  The pinch valve sleeve in the sanitary piping of the present invention includes a sleeve body having a length, a diameter, a thickness, and flexibility, a flange portion in which both ends of the sleeve body are bulged in an outer peripheral direction, an inner diameter of the flange portion, A ring portion having a semicircular cross section that bulges on both sides between the outer diameter and the sleeve body, the flange portion, and the ring portion are integrally formed, and the wall thickness of the sleeve body changes the diameter of the inner diameter. Without reducing the outer diameter only, the center side is thinner than the side edges, and the tube wall of the inner lumen of the sleeve can be easily and reliably cleaned with a straight without any irregularities, Furthermore, the flange portion can be fixed with a clamp by joining with the flange of another piping part, and furthermore, the ring portion with a semicircular cross section serves as a sealing material for bonding with the flange of other piping parts, in addition, Elongation at closing the sleeve by external pressure intended to be absorbed by varying the thickness, which is a highly innovative, practical effective invention.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a pinch valve sleeve of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a cross-sectional view for explaining an embodiment of a pinch valve sleeve of the present invention.

  The present invention relates to a pinch valve sleeve, and more particularly to a pinch valve sleeve in a sanitary pipe that can be easily disassembled and assembled, and can be easily cleaned and sterilized. The pinch valve sleeve is a pinch valve sleeve in sanitary piping, and has a sleeve body 1 having an appropriate length, diameter, thickness, and flexibility, and both ends of the sleeve body 1 in the outer circumferential direction. Each of the flange portions 2 bulged, and a ring portion 3 having a semicircular cross section that bulges on both surfaces between the inner diameter and the outer diameter of each flange portion 2, The flange portions 2 and the ring portions 3 are integrally formed, and the wall thickness of the sleeve body 1 is such that only the outer diameter is reduced without changing the diameter of the inner diameter. It is characterized in that the formation of the center edge thinner than the end side.

  Furthermore, the pinch valve sleeve according to claim 2 is the pinch valve sleeve according to claim 1, wherein the sleeve body 1 is provided with a thick portion 1a having a constant thickness on both side edges, Each of the thick portions 1a is provided with a tapered portion 1b that reduces the outer diameter only, and a thin portion 1c having a constant thickness is provided between the tapered portions 1b.

  Furthermore, the pinch valve sleeve according to claim 3 is the pinch valve sleeve according to claim 1 or 2, wherein the sleeve main body 1, the respective flange portions 2 and the respective ring portions 3 are connected. It is formed of flexible rubber or thermo-flexible elastomer.

  That is, as shown in FIG. 1, the pinch valve sleeve is used for a pinch valve that is inserted in the middle of the sanitary pipe or attached to the end portion, and stops the flow of the fluid product inside if necessary. Or it is for squeezing, and it can be easily disassembled and assembled after use, and facilitates internal cleaning.

  The sleeve body 1 is cylindrical and has an appropriate length, diameter, thickness, and flexibility, and the size is arbitrarily set according to the standard by the sanitary line used. The flange portion 2 and the ring portion 3 which will be described later are integrally formed.

  Next, each flange portion 2 has both ends of the sleeve body 1 bulged in the outer circumferential direction, and is fixed together with adjacent sanitary piping parts by clamps which are connection fittings described later. is there.

  Next, each ring portion 3 has a ring shape with a semicircular cross section, and bulges on both surfaces between the inner diameter and the outer diameter of each flange portion 2. The ring part 3 bulged to the outside of 2 becomes a seal member between the flange parts 2 of other adjacent piping parts to be connected, and the ring part 3 bulged to the inside of each flange part 2 will be described later. The engaging member can be fixed without detaching the clamp.

  Further, the sleeve body 1, the flange portions 2 bulged at both ends of the sleeve body 1, and the ring portions 3 bulged on both surfaces of each flange portion 2 are integrally formed. .

  Furthermore, the wall thickness of the sleeve body 1 is straight without changing the diameter of the inner diameter so as to stabilize the flow of the fluidized product, facilitate cleaning, and reduce the outer diameter only. The thickness of the sleeve body 1 is such that the central side is thinner than the thickness of the side edges.

That is, as is well known, a clamp (not shown) which is a connection fitting is a concave groove on the inside so as to cover the outer peripheral direction of the pair of flange portions 2 connected by connecting sanitary pipes and the front and rear in the axial direction. One side of a pair of substantially semicircular members formed with a hinge is fixed with a hinge, and the other side is fixed with a screw rod and a nut.
It is for fixing by.

  The thickness of the sleeve body 1 is such that a thick portion having a constant thickness is provided on each side edge, and a tapered portion that reduces only the outer diameter is provided inside each thick portion, and between the respective tapered portions. A thin portion having a constant thickness is provided to absorb a load generated in the axial direction by an external pressure received from the circumferential direction.

  In addition, the sleeve main body 1, the respective flange portions 2, and the respective ring portions 3 are integrally formed using a flexible rubber or a heat-flexible elastomer (TPE).

  The present invention provides a sleeve main body having a length, a diameter, a wall thickness, and flexibility, a flange portion in which both ends of the sleeve main body are bulged in an outer peripheral direction, and both surfaces between an inner diameter and an outer diameter of the flange portion. The sleeve body, the flange section, and the ring section are integrally formed, and the wall thickness of the sleeve body is reduced only to the outer diameter without changing the diameter of the inner diameter. In addition, the central wall of the sleeve is thinner than the side edges, and the tube wall of the sleeve lumen is straight with no irregularities and can be easily and reliably cleaned. It can be fixed by clamping with the flange of the part, and the ring part with a semicircular cross section serves as a sealing material for bonding with the flange of other piping parts. In addition, the sleeve is closed by external pressure The elongation of time changes the thickness There is provided a sleeve for a pinch valve in sanitary piping is absorbed by.

  FIG. 1 is a sectional view for explaining an embodiment of a pinch valve sleeve according to the present invention.

DESCRIPTION OF SYMBOLS 1 Sleeve body 1a Thick part of constant thickness 1b Taper part 1c Thin part of constant thickness 2 Flange part 3 Ring part

Claims (3)

  A sleeve for a pinch valve in a sanitary pipe, which has an appropriate length, diameter, thickness, and flexibility, and each flange portion in which both ends of the sleeve body are bulged in the outer circumferential direction, A ring portion having a semicircular cross section that bulges on both surfaces between the inner diameter and the outer diameter of each flange portion, and the sleeve main body, each flange portion, and each ring portion are integrated. A sleeve for a pinch valve, wherein the sleeve body is formed so that the outer diameter of the sleeve body is reduced without changing the diameter of the inner diameter, and the central side is thinner than the side edges.   As for the thickness of the sleeve main body, a thick portion having a constant thickness is provided on both side edges, a tapered portion that reduces only the outer diameter is provided inside each thick portion, and between the respective tapered portions. The pinch valve sleeve according to claim 1, wherein a thin portion having a constant thickness is provided.   3. The pinch valve sleeve according to claim 1, wherein the sleeve main body, the respective flange portions, and the respective ring portions are formed of a flexible rubber or a heat-flexible elastomer.

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