JP3142402U - Water control valve - Google Patents

Abstract

To provide a water control valve rod capable of preventing infiltration of earth and sand between an upper housing and a lid.
A lower housing 11 having an annular convex portion projecting from the periphery of the upper surface, an intermediate housing 12 in which the annular convex portion 11b of the lower housing is fitted and fixed, and an upper portion fitted to the intermediate housing. It comprises a housing 13 and a lid body 14 fitted to the upper housing, and is characterized in that a packing material 17 is disposed between an upper inner peripheral surface of the upper housing and a side wall outer peripheral surface of the lid body. To do. The packing material is attached to the inner peripheral surface of the upper casing, and can be disposed so as to come into pressure contact with the outer peripheral surface of the side wall of the lid when the lid is fitted to the upper casing. Further, the side wall of the lid body is narrowed downward, and the diameter of the lower end tip surface of the side wall is formed smaller than the inner diameter of the packing material, and the packing material is used when the lid body is fitted to the upper housing. You may arrange | position so that it may press-contact with the side wall outer peripheral surface of a cover body.
[Selection] Figure 1

Description

The present invention relates to a water control valve rod in which a water control valve connected to a water pipe buried in the ground is disposed.

  Conventionally, when a water control valve rod is disposed in the ground, it is buried deep from the ground surface, for example, at a depth of 1 m or more so that the water control valve connected to the water pipe does not freeze. For example, conventionally, a water control valve is connected to a water pipe buried in the ground.

  In addition, a foundation is formed on the water pipe that surrounds the water control valve with a certain interval, and sand is hardened with water. Was buried.

  The water control valve rod is composed of a cylindrical lower housing whose lower end is curved and expanded in diameter, and an upper housing on which a lid is detachably fitted. A male screw is provided on the upper part of the lower housing, while a female screw that is screwed with the male screw is provided on the upper housing. The male screw and the female screw are assembled together by being screwed together, and the height position of the lid body with respect to the ground surface is adjusted by the length of the screwing.

  The water control valve having the above-described configuration is generally a cast product. Therefore, rusting may occur due to long-term embedding, or earth and sand may enter between the male screw and the female screw, and the male screw and the female screw may not rotate. Therefore, when the overall height of the water control valve rod is actually lowered due to subsidence, etc., or when it is necessary to adjust the height position of the lid body by repairing the ground surface or re-paving, etc. However, there is a problem that the upper casing cannot be rotated and the height cannot be adjusted.

  The present invention has been made in view of the present situation, and an object thereof is to provide a water control valve that can be easily disassembled when the height is adjusted without containing earth and sand. Another object of the present invention is to provide a water control valve that has a simple structure and can be inexpensively assembled.

  In order to achieve the above object, the present invention has the following configuration. That is, the water control valve rod of the present invention includes a lower housing formed by projecting an annular convex portion on the upper surface periphery, an intermediate housing that fits and fixes the annular convex portion of the lower housing, and the intermediate housing. An upper casing to be fitted and a lid fitted to the upper casing, and a packing material is disposed between the upper inner peripheral surface of the upper casing and the side wall outer peripheral surface of the lid. And The packing material is attached to the inner peripheral surface of the upper casing, and can be disposed so as to come into pressure contact with the outer peripheral surface of the side wall of the lid when the lid is fitted to the upper casing. Further, the side wall of the lid body is narrowed downward, and the diameter of the lower end tip surface of the side wall is formed smaller than the inner diameter of the packing material, and the packing material is fitted when the lid body is fitted to the upper housing. It is preferable to arrange | position so that it may press-contact to the side wall outer peripheral surface of a cover body.

  The packing material may be an annular body having a U-shaped cross section or an annular body having a circular cross section. The shape of the packing material can be arbitrarily formed. The packing material may be attached to the outer peripheral surface of the side wall of the lid, and the inner diameter of the upper opening of the upper housing may be formed larger than the diameter of the outer peripheral surface of the packing material.

  According to the water control valve rod according to the present invention, not only the assembly and installation are easy, but also the packing material is disposed between the upper housing and the lid body, so that intrusion of earth and sand and rainwater can be prevented. . Further, by using a plastic intermediate casing for the intermediate casing, it is not possible to remove the intermediate casing due to rust. In addition, the intermediate housing and the lower housing can be fitted with a simple structure because the annular protrusion of the lower housing is fitted into the intermediate housing and the intermediate housing is positioned outside the lower housing. In addition, it is possible not only to prevent intrusion of earth and sand and rainwater, but also to easily remove the lid.

  Hereinafter, the present invention will be described in detail based on the illustrated embodiment. 1 to 3 show a first embodiment of the present invention. The water control valve rod 10 is composed of a lower housing 11, an intermediate housing 12, an upper housing 13, and a lid 14 that are placed and fixed on a foundation.

  The lower housing 11 is formed in a substantially bowl shape whose side surface is curved toward the lower end. The upper surface is substantially formed on a horizontal surface 11a, and an annular convex portion 11b that fits into the intermediate housing 12 is integrally projected on the horizontal surface 11a. Accordingly, the outer diameter of the annular convex portion 11b is formed to be the same as or slightly smaller than the inner diameter of the intermediate housing 12. By disposing the intermediate housing 12 outside the annular protrusion 11b, it is possible to prevent the intrusion of earth and sand without using a packing material.

  The lower casing 11 is not limited to the above-mentioned shape, and may be a cylindrical body having a side surface formed vertically, or a hollow truncated cone having a side surface inclined or stepped. It may be a shape.

  The intermediate housing 12 is a plastic cylindrical body having an appropriate length, and is a height adjusting member that adjusts the height position of the lid 14 with respect to the ground surface. The intermediate casing 12 has a length that measures the height at which the upper surfaces of the upper casing 13 and the lid 14 are the same as the ground surface in advance, and has a length corresponding to the height. The intermediate casing 12 adjusts the overall height of the water control valve rod 10. A method for determining the length of the intermediate casing 12 will be described later.

  Next, the upper casing 13 is a cylindrical body as a whole, and is provided with an inward flange 13a on which the lid body 14 is placed on the inner peripheral surface, and an appropriate inner peripheral surface of the flange 13a is provided. A projecting piece 13b having a through hole at a position is projected. A chain, a string or the like attached to the lower surface of the lid body 14 is fixed to the protruding piece 13b (not shown) to prevent the lid body 14 from being taken away.

  A packing material 17 is attached to the inner peripheral surface above the flange 13 a of the upper housing 13 to enhance the sealing performance with the lid body 14. As shown in FIGS. 2 and 3, the packing material 17 is an annular body formed in a U-shaped cross section, and protrudes on the inner peripheral surface of the upper housing 13 in the concave portion 17a on the outer peripheral surface side. It is attached by fitting the protrusion 13c.

  The packing material 17 is an elastic body made of rubber or plastic, and its inner peripheral surface is in pressure contact with the side wall 14 b of the lid body 14. The packing material 17 is pressed against the side wall 14b of the lid body 14 to prevent intrusion of earth and sand and water from the gap between the upper housing 13 and the lid body 14, and the inside of the intermediate housing 12 and the lower housing 11 is prevented. Can be kept clean.

  The lid body 14 is formed by an upper plate 14a and a side wall 14b. The upper surface of the upper plate 14a is slightly inclined from the central portion toward the outer peripheral edge, and the outer peripheral surface of the side wall 14b is narrowed downward so as to be fitted while pressing the packing material 17 outward. Yes.

  Furthermore, a concave portion 14c having a planar circular shape such as a hand keyhole is provided at a substantially central portion of the upper plate 14a of the lid 14. A locking bar that locks a take-out bar or the like is stretched horizontally over the concave portion 14c, and the peripheral surface is inclined upward and outward. In this way, by tilting the peripheral surface of the concave portion 14c, it can be easily taken out even when sediment or the like is accumulated.

  As described above, when the side wall 14b is narrowed downward, the tip of the lower end surface of the side wall 14b is in contact with the inner peripheral surface of the packing material 17 before the lid body 14 is fitted, as shown in FIG. It is located on the inner side in the vertical direction than the vertical line S (indicated by a chain line). That is, as shown in FIGS. 2 and 3, when the tapered surface is provided on the lower outer peripheral surface of the side wall 14b, the inner diameter of the packing material 17 is R, and the inner diameter of the lower end surface of the side wall 14b is r. It is formed so that R ≧ r.

  In addition, since the outer peripheral surface of the side wall 14b is squeezed downward, the packing material 17 is gradually expanded by the outer peripheral surface of the side wall 14b when the lid 14 is fitted to the upper housing 13, and the side wall 14b. It will press-contact with the outer peripheral surface.

  When the lid body 14 is attached, the packing material 17 is expanded and pushed down by the side wall 14b of the lid body 14, but is locked to the protrusion 13c provided on the inner peripheral surface of the upper housing 13. Therefore, it does not slide down and is surely pressed against the side wall 14b. On the other hand, when removing the lid 14 from the upper housing 13, the side wall 14b is squeezed and the packing material 17 is locked to the projection 13c, so that it can be easily taken out.

  Next, a second embodiment for improving the sealing performance between the upper housing 13 and the lid body 14 will be described. In the first embodiment, the packing material 17 is formed in a U-shaped annular body in the cross section, whereas in the second embodiment, the packing material 17A is formed in a circular annular section in the shape of an O-ring.

  That is, as shown in FIG. 4, an annular recess 13d is provided on the inner surface above the flange 13a of the upper housing 13, and a part of the packing material 17A is fitted into the annular recess 13d. Also in this embodiment, the vertical line S1 (one-dot chain line) where the tip of the lower end surface of the side wall 14b is in contact with the inner peripheral surface of the packing material 17A before the lid 14 is fitted so that the lid 14 can be easily fitted. It is located inward in the vertical direction than

  The outer peripheral surface of the side wall 14b is squeezed downward, and when the lid 14 is fitted to the upper housing 13, the packing material 17A is gradually expanded by the outer peripheral surface of the side wall 14b, and the outer peripheral surface of the side wall 14b. It is comprised so that it may press-contact to.

  Note that the cross-sectional shape of the packing material 17A is not limited to a circular cross-section as in the illustrated embodiment, and may be any shape such as an ellipse or a polygon. Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

  FIG. 5 is a cross-sectional view illustrating the third embodiment. The attachment position of packing 17B differs from 2nd Embodiment. That is, an annular recess 14c is provided on the outer surface of the side wall 14b of the lid body 14, and a part of the packing material 17B is fitted into the annular recess 14c.

  In this embodiment, a tapered surface 13e extending upward is provided on the upper inner surface of the upper housing 13 so that the lid body 14 can be easily fitted, and the upper end of the tapered surface 13e is fitted to the lid body 14. It is located outside in the vertical direction with respect to the vertical line S2 (indicated by a chain line) that contacts the outer peripheral surface of the packing material 17B before being attached. That is, as shown in FIG. 5, when the outer diameter of the packing material 17B is R1, and the inner diameter of the upper end of the tapered surface 13e is r1, R1 ≦ r1 is formed.

  When the lid 14 is fitted to the upper housing 13, the packing material 17 </ b> B is pressed against the inner peripheral surface of the upper housing 13 while being gradually pressed inward by a tapered surface 13 e formed on the upper inner surface of the upper housing 13. To do.

  The cross-sectional shape of the packing material 17B is not limited to a circular cross-section like the packing material 17A, and may be an arbitrary shape such as an ellipse or a polygon. Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

  Next, the registration mark type ruler shown in FIG. 6 will be described. The registration mark type ruler 20 shown in the figure includes a material difference 20a and a registration mark type slider 20b, and is configured by inserting the material difference 20a into the slider 20b so as to be movable up and down. The object difference 20a is a rod-shaped body having a circular cross section, and is provided with a scale 20c representing the length from the lower end at an appropriate interval. The height dimension H of the slider 20b is the same as the dimension H from the lower surface to the upper end of the flange 13a of the upper housing 13 shown in FIG.

  Since the lower surface of the flange 13a of the upper housing 13 is placed on the intermediate housing 12, the height H of the slider 20b and the upper end from the lower surface of the flange 13a of the upper housing 13 as shown in FIG. By forming the same as the dimension H up to, the lower end of the material difference 20a is placed on the horizontal surface 11a of the lower housing 11, and the scale of the lower end surface of the slider 20b is read with the upper end surface of the slider 20b aligned with the road surface. The scale dimension is the length of the intermediate casing 12.

  Thus, if the height dimension H of the slider 20b is formed to be the same as the dimension H from the lower surface to the upper end of the flange 13a of the upper housing 13, the remaining scale of the material difference 20a becomes the length of the intermediate housing 12. Therefore, the length of the intermediate housing 12 can be easily determined.

  Next, the case where the water control valve housing of the first embodiment is assembled and used as shown in FIG. 1 will be described. First, the lower housing 11 is placed and fixed on the foundation, and the lower end portion of the intermediate housing 12 is fitted and attached to the annular convex portion 11b of the lower housing 11. Although not shown in the embodiment, the fitting portion between the annular convex portion 11b and the intermediate housing 12 may be assembled integrally with a female screw by passing a fastening bolt through the both.

  After the intermediate casing 12 having a length measured in advance is raised integrally with the lower casing 11, the upper casing 13 is fitted to the intermediate casing 12. A packing material 17 is preferably attached to the inner surface of the upper housing 13 in advance. Next, the lid body 14 is fitted into the upper surface opening of the upper housing 13. Since the side wall 14b of the lid body 14 is squeezed downward, it is inserted while pressing the packing material 17 outward. By disposing the packing material 17 between the upper housing 13 and the lid body 14, it is kept liquid-tight and can prevent inflow of muddy water, earth and sand, and the like.

  On the other hand, when it is necessary to adjust the height position of the lid 14 due to subsidence or pavement on the ground surface, the lid 14 may be lifted and removed, and then the upper housing 13 may be removed. After replacing the intermediate housing 13 with a predetermined size formed by measuring with the above-described register mark type ruler 20, for example, the upper housing 13 is again fitted into the new intermediate housing 12 and attached to the upper housing 13. The lid body 14 may be fitted.

It is a section front view of the water control valve housing concerning this invention. It is an expanded sectional view showing an important section. It is sectional drawing which shows the relationship between the packing material attached to the upper housing | casing, and a cover body. It is a principal part expanded sectional view which shows 2nd Embodiment of the attachment method of packing material. It is a principal part expanded sectional view which shows 3rd Embodiment of the attachment method of packing material. FIG. 6A is a front view and FIG. 6B is a plan view showing an example of a registration mark type ruler.

Explanation of symbols

10: Water control valve housing 11: Lower housing 11a: Horizontal surface 11b: Annular convex portion 12: Intermediate housing 13: Upper housing 14: Lid 17: Packing material

Claims (6)

  A lower housing formed by projecting an annular convex portion on the upper surface periphery, an intermediate housing for inserting and fixing the annular convex portion of the lower housing, an upper housing fitted to the intermediate housing, and the upper housing A water control valve, comprising: a lid body to be fitted, wherein a packing material is disposed between an upper inner circumferential surface of the upper housing and a side wall outer circumferential surface of the lid body.   The packing material is attached to the inner peripheral surface of the upper casing, and is arranged so as to be pressed against the outer peripheral surface of the side wall of the lid when the lid is fitted to the upper casing. The water control valve according to claim 1.   The side wall of the lid body is narrowed downward, and the diameter of the lower end surface of the side wall is smaller than the inner diameter of the packing material. The packing material is a lid when the lid body is fitted to the upper housing. The water control valve rod according to claim 1, wherein the water control valve rod is disposed so as to be in pressure contact with the outer peripheral surface of the side wall of the body.   The water control valve rod according to any one of claims 1 to 3, wherein the packing material is an annular body having a U-shaped cross section.   The water control valve rod according to any one of claims 1 to 3, wherein the packing material is an annular body having a circular cross section.   The packing material is attached to the outer peripheral surface of the side wall of the lid, and the inner diameter of the upper opening of the upper housing is formed larger than the diameter of the outer peripheral surface of the packing material. The water control valve described in 1.

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