JPH11325320A - Pipe spacer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent a pipe spacer from moving to the longitudinal direction of a pipe. SOLUTION: This pipe spacer 2 is composed of an upper divided member 3 and a lower divided member 4 for supporting a pipe 1 provided with recesses 1A and protrusions 1B formed into annular or spiral shape alternately in its outer face. A projection 5 getting into the recess 1A of the pipe 1 under a condition that the pipe 1 is supported by the both members 3, 4 is provided in a pipe receiving face 4a of at least one member out of the members 3, 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pipe spacer for supporting a pipe buried underground or the like.

[0002]

2. Description of the Related Art A large number of pipe spacers have been proposed which support an installed pipe by sandwiching the pipe between an upper split member and a lower split member which are vertically divided into two. By supporting with such a pipe spacer, not only can the pipe work be facilitated, but also the pipe line is largely changed by vibration due to an earthquake or land subsidence, or the pipe itself is deformed. To be able to avoid.

However, as described above, the pipe is supported at a predetermined position by the pinching force between the upper split member and the lower split member. However, the pinching force must be increased so as not to cause deformation of the pipe. Can not. as a result,
Because the pipe spacer unexpectedly moves in the longitudinal direction of the pipe, it is not possible to support the pipe properly with the pipe spacer, and the pipe line is significantly changed by the vibration due to earthquake or land subsidence, or the pipe itself is deformed. Inconvenience has occurred.

[0004]

SUMMARY OF THE INVENTION In view of the above situation, the present invention aims to solve the problem by reliably preventing the tube spacer from moving in the longitudinal direction of the tube. It is in.

[0005]

According to the present invention, in order to solve the above-mentioned problems, concave portions and convex portions are alternately provided on the outer surface, and
They consist of an upper split member and a lower split member that support a tube formed in an annular or spiral shape, and the pipe is attached to a pipe receiving surface of at least one of the upper split member and the lower split member. A tube spacer provided with a projection which enters into a concave portion of the tube when supported by both members. Such a tube buried in the ground is provided with a concave portion and a convex portion alternately on the outer surface in order to enhance the shape retention strength, and since they are formed in an annular or helical shape, the pipe is provided in this concave portion. By inserting the projection provided on the receiving surface, the projection cannot climb over the convex part, and it is possible to reliably prevent the pipe spacer from moving in the longitudinal direction of the pipe. It is to be noted that the provision of the projections on both the upper split member and the lower split member more reliably prevents the tube spacer from moving. When the upper split member and the lower split member are made of synthetic resin or the like, the protrusions can be integrally formed,
This is advantageous in terms of manufacturing.

By disposing the projection at one end in the pipe axis direction of the pipe receiving surface, the pipe can be sandwiched between the upper split member and the lower split member while observing the state in which the projection enters the concave portion of the pipe.

[0007] By forming the pipe receiving surface as an inclined surface from one end to the other end in the axial direction of the pipe, water or the like accumulated on the pipe receiving surface can be guided by the inclined surface. Can be prevented from accumulating.

[0008] By providing the projections on the upper split member and the lower split member so that the projections can be allowed to move in a direction perpendicular to the pipe axis direction, for example, the pipe can be attached to both members. When the tube tries to move with a large force against the tube spacer in the state where it is supported by
It is possible to prevent the projection from moving in the direction orthogonal to the tube axis direction and causing the projection to be damaged.

[0009] In order to connect the upper split member and the lower split member, one of the two members is provided with a platform protrusion protruding in the vertical direction. By providing a vertically elongated hole in the other member, and providing a water discharge hole penetrating from the horizontal direction at the lower end of the hole, water collected in the vertically elongated hole can be discharged through the vertically elongated hole. It can be discharged outside through a hole. In addition, by engaging the engagement protrusion provided on one member with the vertically long hole provided on the other member, both members can be connected.

[0010]

FIG. 1 shows a tube spacer 2 for supporting a tube 1 in a vertical direction. The tube 1 is shown in FIG.
As shown in FIG. 3, concave portions 1A and convex portions 1B are alternately provided on the outer surface, and they are formed in a spiral shape. In FIG. 1, the concave portion 1A and the convex portion 1B are formed in a spiral shape.
They may be formed in a ring shape. Further, although the cross section of the convex portion 1B is formed in a semicircular shape, it may be in any shape such as a triangular shape or a rectangular shape. When the pipe 1 is made of a synthetic resin, the pipe 1 has a sharability, so that vibrations caused by an earthquake, land subsidence, or the like can be favorably absorbed. It may be made of a material.

As shown in FIGS. 1 to 3, the pipe spacer 2 comprises an upper split member 3 for supporting the upper side of the pipe 1 and a lower split member 4 for supporting the lower side of the pipe 1. The members 3 and 4 are the same member, and one lower split member 4 will be described. In this embodiment, the upper split member 3 and the lower split member 4 are constituted by the same member, but these two members 3 and 4 may be constituted by different members. Upper split member 3
The same reference numerals as those of the lower split member 4 are also given, and the description thereof is omitted. The tube spacer 2 may be made of any material such as metal, ceramic, hard rubber, etc., in addition to being made of synthetic resin.

The lower split member 4 is shown in FIGS.
As shown in (a), (b), and FIGS. 5 (a), (b), three tube receiving portions 4A having a semicircular tube receiving surface 4a for mounting and supporting the tube 1 are provided in the left-right direction. And four joining portions 4B, 4C, 4D and 4E having mating surfaces for the upper split member 3 at both left and right ends of each tube receiving portion 4A.
B, 4C, 4D, and 4E, matching parts 4 located at the left and right ends.
B, 4E, the left and right walls 4F, 4G extending downward and the bottom wall 4 connecting the lower ends of these left and right walls 4F, 4G.
In addition to the date, these three tube receiving portions 4A, four joining portions 4B, 4C, 4D, 4E, right and left wall portions 4F, 4
G, a bottom wall portion 4 is provided with a side wall portion 41 connecting one end side of the front and rear ends of each of the four days. As shown in FIG. 4 (a), by forming the pipe receiving surface 4a as an inclined surface from one end to the other end in the axial direction of the pipe, it is possible to avoid accumulation of water or the like on the pipe receiving face 4a. However, the tube receiving surface 4a may be formed in a horizontal plane.

A semicircular projection 5 is provided at one end of each pipe receiving portion 4A in the pipe axis direction. When the pipe 1 is supported by the upper split member 3 and the lower split member 4, the projection 5 Is inserted into the concave portion 1A of the tube 1 so that the position of the tube spacer 2 with respect to the tube 1 is not changed.
The shape of the protrusion 5 may be any shape, and the tube supporting member is so configured that the protrusion 5 enters the concave portion 1A, that is, the protrusion 5 extends over a half or more circumference of the spiral concave portion 1A. The position change prevention force of No. 2 can be increased, but the range of entry of the projection 5 into the recess 1A may be any range. Also, by positioning the protrusion 5 at one end in the tube axis direction of the tube receiving portion 4A,
While the upper split member 3 and the lower split member 4 can support the pipe 1 while watching the projection 5 entering the concave portion 1A of the pipe 1, it may be provided at any position. When the upper split member 3 and the lower split member 4 are formed of a synthetic resin, it is advantageous in terms of manufacturing that the projections 5 are integrally formed. It may be attached to the upper split member 3 or the lower split member 4 by a means or a heat fusion means.

An engaging projection 6 having a pair of engaging claws 6A, 6A protruding upward on the mating surface of two specific mating portions 4C, 4E among the mating portions 4B, 4C, 4D, 4E. And the remaining two mating portions 4B and 4D
The engagement protrusions 6, 6 provided on the upper split member 3 are respectively provided.
Are formed in a vertically long hole 7 to be engaged. Therefore, the engaging projections 6 are inserted into the holes 7, and
The upper split member 3 and the lower split member 4 are connected and fixed by the A and 6A engaging with the lower end surfaces 7A and 7A of the hole 7, respectively. In order to release the connection, the upper split member 3 is moved upward with the engagement claws 6A, 6A being operated by pushing a finger or a screwdriver or the like into the water discharge hole 8 to be described later. It is possible to do by moving. The specific configuration of the engagement protrusion 6 is not limited to the one shown in the drawing. 11 shown in the figure
Are concave portions formed in the upper split member 3 and the lower split member 4.

At the lower end of the hole 7, there is formed a water discharge hole 8 which penetrates in the horizontal direction, that is, in the longitudinal direction of the tube axis, so that water or the like that has entered the hole 7 can accumulate therein. And the water can be discharged to the outside through the water discharge hole 8.

In the above-described embodiment, the case where the three tubes 1 are supported in the horizontal direction has been described. However, one, two, or four or more tubes 1 may be supported in the horizontal direction. In addition to supporting a plurality of pipes 1 in the horizontal direction, three semicircular pipe receiving surfaces 10a are provided vertically between the upper split member 3 and the lower split member 4 as shown in FIGS. By interposing the intermediate member 10 having the pipes 1, the pipes 1 can be supported in two upper and lower stages, and a total of six pipes 1
May be supported, and the number that can be supported is not limited to these numbers.

In the above embodiment, as shown in FIGS. 3 and 5, a reinforcing annular portion 9 is provided below the hole 7 so that the upper split member 3 and the lower split member 4 are retained. Although the shape strength is increased, as shown in FIGS. 8A and 8B, the annular portion 9 may be omitted. In this case, the formation of the water discharge hole 8 becomes unnecessary.

The lower split member 4 may be configured to support one pipe 1 as shown in FIGS. More specifically, the lower split member 4 includes a pipe receiving portion 4A having a pipe receiving surface 4a, and the upper split member 3 formed of the same member.
Left and right wall portions 4F, 4G extending downward from the left and right ends of the matching portions 4B, 4C, and the left and right wall portions 4F, 4
A bottom wall 4H that connects the lower ends of G with each other is provided.
A partition wall 4K is provided to partition substantially the center of the inner surfaces of these members in the front-rear direction. In addition, the same reference numerals are given to the same members as those in the above-described embodiment, and the description is omitted. 13. One of the pair of claws 12A, 12A of the connecting member 12 also shown in FIG. 13 penetrates into the lower portion of each of the left and right wall portions 4F, 4G and the left and right portions of the bottom wall portion 4 on two sides. A hole 4L is provided, and one claw portion 12A of the connecting member 12 is inserted into the through hole 4L of one tube spacer 2, and the other claw portion 12A of the other tube spacer 2 adjacent to the tube spacer 2 is inserted. The two tube spacers 2 can be connected in the up-down direction or the left-right direction by being inserted into the through hole 4L.

The connecting member 12 is made of synthetic resin, synthetic rubber, or the like. The pair of claws 12A, 12A are provided on the distal end side, and extend outwardly toward the distal end.
A main body 12B having a cross-sectional shape provided on the base end side for connecting the two tube spacers 2 and connecting the two pipe spacers 2.
It is composed of A long groove 4M is formed in the tube spacer 2 to allow the thin portion 12b of the main body 12B to enter the tube spacer 2. Therefore, FIG.
As shown in FIG.
The connecting member 12 can be fixed to the pipe spacer 2 by pushing the connecting members 12 into the through holes 4L, 4L until they are locked to the rear end surfaces 4T, 4T. At this time, when the thin portion 12b of the main body 12B enters the long grooves 4M, 4M, the connecting member 12
Can be located inside. The through hole 4L has a smaller diameter toward the inner side, and the through hole 4L
The claw 12A can be securely engaged with the rear end face 4T while being easily inserted into the rear end face 4T. By making the claws 12A, 12A outwardly expand toward the distal end side, after the insertion into the through hole 4L, the locking is more reliably performed by using the restoring force of returning the claws 12A, 12A to the outer spread side. Is something that can be done.

A notch 13 in the front-rear direction is formed in the tube receiving surfaces 4a located at both ends in the left-right direction of the protrusion 5 so that the protrusion 5 can be allowed to move in a direction perpendicular to the tube axis direction. , 13 are formed, for example, when the pipe 1 is to be moved with a large force with respect to the pipe spacer 2, the piece 14 having the projection 5 formed on the pipe receiving surface 4a is moved in the pipe axial direction. The projection 5 moves in a direction perpendicular to the direction,
It is possible to avoid that is damaged. The notch portions 13 in the front-back direction are shown in FIG.
As shown in the figure, the cutout may be an L-shaped notch 15 and a piece 16 in which the projection 5 is formed on the pipe receiving surface 4a. In the embodiment, the projection 5 is formed integrally with the tube spacer 2. However, the projection 5 formed separately or the piece 14 or 16 having the projection 5 may be attached to the tube spacer 2. .

[0021]

According to the first aspect of the present invention, a projection provided on the tube receiving surface is inserted into a concave portion on the outer surface of the tube originally provided to enhance the shape-retaining strength. It is possible to prevent the pipe spacer from moving in the longitudinal direction of the pipe without fail, without significantly changing the pipe line due to vibration due to earthquake or uneven settlement, and without causing deformation of the pipe itself. It can be favorably supported by the tube spacer over a long period of time. In addition, when the tube spacer is made of a synthetic resin, the projections are integrally formed at the time of manufacturing the tube spacer, thereby preventing an increase in the number of manufacturing steps and the occurrence of mounting work, which is advantageous in terms of manufacturing cost. .

According to the second aspect of the present invention, the projection is arranged at one end of the pipe receiving surface in the pipe axis direction, so that the upper split member and the lower split member form the pipe while observing the state in which the projection enters the concave portion of the pipe. It can be sandwiched, which is advantageous in terms of construction.

According to the third aspect, the pipe receiving surface is formed as an inclined surface extending from one end in the pipe axial direction to the other end.
Water and the like that accumulate on the pipe receiving surface can be guided by the inclined surface, and water and the like can be prevented from accumulating on the pipe receiving surface,
This does not cause signs or the like and does not change the materials of the tube and the tube spacer at an early stage, which is advantageous in terms of durability.

According to the fourth aspect, the projections are provided on the upper split member and the lower split member so that the projections can be allowed to move in a direction orthogonal to the pipe axis direction. When the tube tries to move with a large force with respect to the tube supporting member while the tube is supported by both members, the protrusion moves in the direction perpendicular to the tube axis direction, and the protrusion is damaged. Can be avoided,
It can be favorably supported by the tube spacer for a long time.

According to the fifth aspect of the present invention, a water discharge hole is provided at the lower end of the hole so as to penetrate the hole from the horizontal direction. Can be discharged to the outside, and there is no generation of signs or the like, and the materials of the pipe and the pipe spacer do not change at an early stage, which is advantageous in terms of durability. Moreover, by engaging the engaging projection provided on one member with the vertically long hole provided on the other member, both members can be connected, which is advantageous in terms of construction.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a tube spacer.

FIG. 2 is a plan view of a lower split member constituting the pipe spacer.

FIG. 3 is a front view of a lower split member constituting the pipe spacer.

4A is a sectional view taken along line AA in FIG. 3, FIG.
FIG. 4 is a sectional view taken along line BB in FIG. 3.

5A is a front view of a pipe spacer, FIG. 5B is a cross-sectional view showing an engagement portion between an upper split member and a lower split member, and FIG. 5C is a longitudinal section showing a state in which the pipe is supported by the pipe spacer. Area view.

FIG. 6 is a perspective view showing another embodiment of the tube spacer.

7A is a perspective view of an intermediate member, and FIG. 7B is a longitudinal sectional view of the intermediate member.

FIG. 8A is a front view showing another form of the lower split member constituting the pipe spacer, and a vertical cross-sectional view showing another form of the engaging portion between the upper split member and the lower split member.

FIG. 9 is a perspective view showing another embodiment of the lower split member of the pipe spacer.

FIG. 10 is a perspective view showing a state in which a lower split member of FIG. 9 is engaged with an upper split member of the same shape.

FIG. 11 is an enlarged view of a main part showing a connecting portion in which the pipe spacers of FIG. 10 are connected in the vertical and horizontal directions.

FIG. 12 is a sectional view taken along line CC in FIG. 11;

FIG. 13 is an exploded perspective view of a main part showing a connection structure of the tube spacer shown in FIG. 9;

FIG. 14 is a perspective view showing another embodiment of the tube spacer.

[Explanation of symbols]

1 pipe 1A concave part 1B convex part 2 pipe spacer 3 upper split member 4 lower split member 4A pipe receiving part 4B, 4C, 4D, 4E joint part 4F, 4G left and right wall part 4H bottom wall part 4I side wall part 4K partition wall part 4L penetration Hole 4M Long groove 4T End surface 4a Pipe receiving surface 5 Projection 6 Engagement projection 6A Locking claw 7 Hole 7A Lower end surface 8 Water draining hole 9 Annular part 10 Intermediate member 10a Pipe receiving surface 11 Recess 12 Connecting member 12A Claw 12B Body 12b Thin part 13 Notch part 14 One part 15 Notch part 16 One part

Claims (5)

[Claims] 1. An upper surface and a lower surface which alternately comprise concave portions and convex portions on an outer surface thereof and which support an annular or helically formed tube. A tube spacer, wherein a protrusion is provided on a tube receiving surface of at least one of the split members so as to enter a concave portion of the tube while the tube is supported by the two members. 2. The tube spacer according to claim 1, wherein the protrusion is disposed at one end of the tube receiving surface in the tube axial direction. 3. The tube spacer according to claim 1, wherein said tube receiving surface is formed as an inclined surface extending from one end to the other end in the tube axis direction. 4. The upper split member and the lower split member are provided with the projection so that the projection can be allowed to move in a direction orthogonal to the pipe axis direction. Item 2. A tube spacer according to Item 1. 5. An engaging projection protruding in the vertical direction is provided on one of the two members to connect the upper split member and the lower split member, and a distal end claw portion of the engaging projection is provided in a vertical direction. 2. The pipe spacer according to claim 1, wherein a vertically elongated hole to be engaged is provided in the other member, and a water discharge hole penetrating from a horizontal direction is provided at a lower end of the hole.