JP3362771B2 - Tube spacer - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe spacer for supporting a pipe buried in the ground or the like.

[0002]

2. Description of the Related Art Many pipe spacers have been proposed which support a pipe to be disposed in a state of being sandwiched by an upper split member and a lower split member which are vertically divided into two. Supporting with such pipe spacers not only facilitates the piping work, but also causes the pipe line to be greatly changed due to vibration due to an earthquake or ground subsidence, and the pipe itself may be deformed. To be able to avoid.

However, although the pipe is supported at a predetermined position by the sandwiching force between the upper split member and the lower split member as described above, the sandwiching force should be increased so as not to cause deformation of the pipe. I can't. as a result,
Since the pipe spacer unexpectedly moves in the longitudinal direction of the pipe, it is not possible to accurately support the pipe with the pipe spacer, and the pipe line is significantly changed due to vibration due to earthquake or ground subsidence, or the pipe itself is deformed. There was an inconvenience.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned situation, the present invention is intended to solve the problem that it is possible to reliably prevent the tube spacer from moving in the longitudinal direction of the tube. It is in.

[0005]

In order to solve the above-mentioned problems, the present invention comprises concave portions and convex portions alternately provided on the outer surface, and
They are composed of an upper split member and a lower split member that support a pipe formed in an annular or spiral shape, and the pipe is attached to the pipe receiving surface of at least one of the upper split member and the lower split member. A protrusion is provided which is inserted into the recess of the pipe while being supported by both members , and the pipe receiving surface is located at one end in the pipe axial direction.
It is a pipe spacer characterized in that it is configured as an inclined surface that goes from the other end to the other end . Such a pipe buried in the ground has concave portions and convex portions alternately provided on the outer surface in order to enhance the shape retention strength, and they are formed in an annular shape or a spiral shape. By inserting the protrusion provided on the receiving surface, the protrusion cannot pass over the convex portion, and it is possible to reliably prevent the pipe spacer from moving in the longitudinal direction of the pipe. In addition, the pipe receiving surface from the one end in the pipe axial direction to the other
By constructing the inclined surface toward the end,
The accumulated water can be guided by the inclined surface, and the pipe receiving surface
It is possible to avoid the accumulation of water and the like. It should be noted that when the projections are provided on both the upper split member and the lower split member, the movement of the tube spacer is more reliably prevented. or,
When the upper split member and the lower split member are made of synthetic resin or the like, the protrusions can be integrally formed, which is advantageous in manufacturing.

Recesses and protrusions are alternately provided on the outer surface, and
They are composed of an upper split member and a lower split member that support a pipe formed in an annular or spiral shape, and the pipe is attached to the pipe receiving surface of at least one of the upper split member and the lower split member. Providing a protrusion that enters into the recess of the pipe when supported by both members , the upper split member and the lower split member
One of the two members in the vertical direction to connect
An engaging protrusion that protrudes is provided.
Provide a vertically elongated hole in the other member,
Do not provide a water discharge hole at the lower end of the hole that penetrates from the horizontal direction.
It is a tube spacer characterized in that. Same as claim 1
In addition, the pipe buried in the ground is
The surface is alternately provided with concave portions and convex portions, and these are annular or
Since it is formed in a spiral shape, the recess is installed on the pipe receiving surface.
By inserting the beam projection, the projection rides on the convex
Cannot be crossed, and the pipe spacer will move in the longitudinal direction of the pipe.
It is possible to reliably avoid moving. Also, the upper part
Of the two members for connecting the member and the lower split member.
One side is provided with an abutment protrusion protruding vertically, and this engagement protrusion
On the other hand, a vertically elongated hole that vertically abuts on the raised tip claw
Water that penetrates the lower end of this hole from the horizontal direction.
By providing a discharge hole, it can be stored in a vertically long hole.
Water is drained to the outside through a water drain hole that passes through the vertically long hole.
Can be issued. Moreover, the engagement provided on one member
Engaging the protrusion with a vertically elongated hole in the other member
With this, both members can be connected. The upper part
It is better to provide protrusions on both the member and the lower split member.
The prevention of movement of the tube spacer becomes more reliable. Also, the upper part
When the split member and lower split member are made of synthetic resin, etc.
Can be formed integrally with
Will be advantageous.

[0007]

[0008]

[0009]

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a tube spacer 2 for supporting a tube 1 in the vertical direction. The tube 1 is shown in FIG.
As also shown in FIG. 3, concave portions 1A and convex portions 1B are alternately provided on the outer surface, and they are spirally formed. 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 convex portion 1B is formed in a semicircular sectional shape, it may have any shape such as a triangular shape or a rectangular shape. Since the pipe 1 is made of synthetic resin and has elasticity, it is possible to satisfactorily absorb the vibration generated by an earthquake, ground subsidence, or the like. It may be made of a material.

As shown in FIGS. 1 to 3, the pipe spacer 2 is composed of 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 the same, but these two members 3 and 4 may be different. Upper split member 3
Also, the same reference numeral as that of the lower split member 4 is given, and the description thereof is omitted. Further, the tube spacer 2 may be made of any material other than synthetic resin, such as metal, ceramic or hard rubber.

The lower split member 4 is shown in FIG. 2, FIG. 3, and FIG.
As shown in (a), (b), and FIG. 5 (a), (b), three pipe receiving portions 4A having a semicircular pipe receiving surface 4a for mounting and supporting the pipe 1 are provided in the left-right direction. , Four mating portions 4B, 4C, 4D, 4E having mating surfaces for the upper split member 3 are provided at both left and right ends of each tube receiving portion 4A.
B, 4C, 4D, 4E alignment parts 4 located at the left and right ends
Left and right wall portions 4F and 4G extending downward from B and 4E, and a bottom wall portion 4 connecting lower end portions of these left and right wall portions 4F and 4G.
In addition to providing the date, these three tube receiving portions 4A, four mating portions 4B, 4C, 4D, 4E, left and right wall portions 4F, 4
G, the bottom wall portion 4 is provided with a side wall portion 41 that connects one end side of the front and rear ends of each of the four days. As shown in FIG. 4 (a), by constructing the pipe receiving surface 4a as an inclined surface extending 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 surface 4a. However, the pipe receiving surface 4a may be formed in a horizontal plane.

A semi-circular protrusion 5 is provided at one end of each of the pipe receiving portions 4A in the pipe axial direction. When the pipe 1 is supported by the upper split member 3 and the lower split member 4, the projection 5 is formed. By inserting into the recess 1A of the tube 1, the position of the tube spacer 2 with respect to the tube 1 is prevented from being changed.
The shape of the projection 5 may be any shape, and as the projection 5 extends over a wide range of the projection 5 that enters the recess 1A, that is, over a wide range of a half or more of the spiral recess 1A, the support member for a tube is formed. Although it is possible to increase the position change preventing force of No. 2, the protrusion 5 that enters the recess 1A may have any range. Further, by locating the projection 5 at one end of the pipe receiving portion 4A in the pipe axial direction,
While the tube 1 can be supported by the upper split member 3 and the lower split member 4 while watching how the projection 5 enters the recess 1A of the tube 1, it may be provided at any position. When the upper split member 3 and the lower split member 4 are made of synthetic resin, it is advantageous in terms of manufacturing that the protrusions 5 are integrally formed. However, the separately formed protrusions 5 are used as an adhesive or an engaging member. It may be attached to the upper split member 3 or the lower split member 4 by means of means, heat fusion means, or the like.

Engaging projections 6 having a pair of engaging claws 6A, 6A projecting upward on the mating surfaces of the particular two mating parts 4C, 4E among the mating parts 4B, 4C, 4D, 4E. And the remaining two mating parts 4B and 4D
To the engaging projections 6 and 6 provided on the upper split member 3, respectively.
To form a vertically elongated hole 7. Therefore, the engaging projection 6 is inserted into the hole 7 and the abutment claw 6 of the abutment projection 6 is inserted.
The upper split member 3 and the lower split member 4 are connected and fixed by abutment of A and 6A on the lower end surfaces 7A and 7A of the hole 7, respectively. In the case of releasing this connection, the upper split member 3 is moved upward in a state in which a finger or a screwdriver or the like is thrust from a water discharge hole 8 described later to operate the engaging claws 6A and 6A toward each other. It can be done by moving. The specific configuration of the engaging projection 6 is not limited to that shown in the drawing. 11 shown in the figure
Is a recess 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 penetrating in the horizontal direction thereof, that is, in the longitudinal direction of the pipe axis, so that water or the like that has entered the hole 7 can be accumulated inside. Instead, the water can be discharged to the outside through the water discharge hole 8.

In the above embodiment, the three pipes 1 are supported in the horizontal direction, but one or two, or four or more pipes 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 vertically provided between the upper split member 3 and the lower split member 4 as shown in FIGS. By interposing the intermediate member 10 which it has, it is possible to support the tubes 1 in two upper and lower stages, and a total of six tubes 1 are provided.
May be supported, and the number that can be supported is not limited to these numbers.

Further, in the above-described embodiment, as shown in FIGS. 3 and 5, by providing the reinforcing annular portion 9 below the hole 7, the upper split member 3 and the lower split member 4 are protected. Although the shape strength is increased, the annular portion 9 may be omitted as shown in FIGS. In this case, it is not necessary to form the water discharge hole 8.

The lower split member 4 may be configured to support one tube 1 as shown in FIGS. 9 to 13. More specifically, the lower split member 4 is provided with a pipe receiving portion 4A having a pipe receiving surface 4a, and the upper split member 3 is made of the same member.
Left and right wall portions 4F and 4G extending downward from the left and right end portions of these mating portions 4B and 4C, and these left and right wall portions 4F and 4C.
While having a bottom wall portion 4H that connects the lower ends of G,
A partition wall portion 4K is provided to partition the inner surfaces of these members into substantially the center in the front-rear direction. The same members as those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted. Then, one of the pair of claw portions 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 the 4th. The hole 4L is provided, and one claw portion 12A of the connecting member 12 is inserted into the through hole 4L of the one tube spacer 2 and the other claw portion 12A of the other tube spacer 2 adjacent to the tube spacer 2 is provided. By inserting into the through hole 4L, the two tube spacers 2 can be connected in the vertical direction or the horizontal direction.

The connecting member 12 is made of synthetic resin, synthetic rubber, or the like, is provided on the tip side, and the pair of claw portions 12A, 12A are formed so as to expand outward toward the tip side, and these claw portions 1
A main body 12B having a cross-section shape provided on the base end side for connecting 2A and 12A and for connecting two tube spacers 2
It consists of and. Then, a long groove 4M for allowing the thin portion 12b of the main body 12B to enter the tube spacer 2 is formed in the tube spacer 2. Therefore, FIG.
As shown in FIG.
The connecting member 12 can be fixed to the tube spacer 2 by pushing the A and 12A until they are engaged with the rear end surfaces 4T and 4T of the through holes 4L and 4L. At this time, the thin portion 12b of the main body 12B is inserted into the long grooves 4M, 4M, so that the connecting member 12 is moved to the pipe spacer 2
Can be located inside. The through hole 4L has a smaller diameter toward the inner side, and the through hole 4L of the connecting member 12 is formed.
The tip claw portion 12A can be securely locked to the back side end surface 4T while being easily inserted. By making the claws 12A and 12A outwardly widen toward the tip side, the locking is made more reliable by using the restoring force that allows the claws 12A and 12A to return to the outwardly spread side after being inserted into the through hole 4L. I am trying to make it possible.

In order to allow the projection 5 to move in a direction orthogonal to the tube axis direction, the tube receiving surfaces 4a located at both ends in the left-right direction of the projection 5 are provided with cutout portions 13 in the front-rear direction. , 13 are formed so that, for example, when the tube 1 tries to move with a large force with respect to the tube spacer 2, the piece portion 14 having the projection 5 formed on the tube receiving surface 4a moves in the tube axial direction. The protrusion 5 moves in the orthogonal direction, that is, the vertical direction in the figure.
It is possible to avoid the damage. As shown in FIG.
As shown in FIG. 4, the L-shaped cutout portion 15 may be formed, and the piece portion 16 in which the projection 5 is formed on the pipe receiving surface 4a may be formed. In the embodiment, the projection 5 is integrally formed with the tube spacer 2. However, the projection 5 may be separately formed 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, the projection is provided over the convex portion by inserting the projection provided on the tube receiving surface into the concave portion of the outer surface of the tube originally provided for increasing the shape retention strength. It is not possible to prevent the pipe spacer from moving in the longitudinal direction of the pipe, and it is possible to prevent the pipe line from being significantly changed or the pipe itself being deformed due to vibrations caused by an earthquake or uneven settlement. It can be favorably supported by the tube spacer for a long period of time. In addition, when the pipe spacer is made of synthetic resin, the protrusions are integrally formed when the pipe spacer is manufactured, so that it is possible to prevent an increase in the number of manufacturing steps and an attachment work, which is advantageous in terms of manufacturing cost. . In addition, the pipe receiving surface from the one end in the pipe axial direction to the other end.
Accumulates on the pipe receiving surface by forming the inclined surface
Water, etc. can be guided by the inclined surface, and water etc.
It is possible to avoid the accumulation of
And the material of the tube spacer do not change early and are durable
In terms of advantages.

According to the second aspect , the shape retention is carried out in the same manner as the first aspect.
Indentations on the outer surface of the tube that are inherently provided for increased strength
By inserting the protrusion provided on the pipe receiving surface into the
The rise cannot get over the convex part, and the pipe spacer
It is possible to reliably avoid moving in the longitudinal direction,
The pipeline was changed significantly due to vibrations caused by earthquakes and uneven settlement.
For a long time without causing deformation of the tube itself
It can be favorably supported by the tube spacer. Only
If the pipe spacer is made of synthetic resin,
By integrally forming the protrusions when manufacturing the
It is possible to prevent the increase
It is advantageous in terms of cost . Also, the water at the bottom of the hole
By providing a water discharge hole that penetrates from the horizontal direction,
Water drained from the water that collects in the vertically long holes through the vertically long holes
It can be discharged to the outside through the holes for
Material of tube and tube spacer does not change early,
It is advantageous in terms of durability. Moreover, it is provided on one member
The engaging projection and the vertically elongated hole provided on the other member.
By connecting both members,
Becomes advantageous.

[0023]

[0024]

[0025]

[Brief description of drawings]

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

FIG. 2 is a plan view of a lower splitting member that constitutes a tube spacer.

FIG. 3 is a front view of a lower splitting member that constitutes a tube spacer.

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

5A is a front view of a pipe spacer, FIG. 5B is a cross-sectional view showing an engaging portion between an upper split member and a lower split member, and FIG. 5C is a vertical cross-sectional view showing a state where the pipe is supported by the pipe spacer. Face view.

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

7A is a perspective view of the intermediate member, and FIG. 7B is a vertical cross-sectional view of the intermediate member.

FIG. 8A is a front view showing another form of the lower splitting member that constitutes the tube spacer, and a vertical cross-sectional view showing another form of the abutment portion between the upper splitting member and the lower splitting member.

FIG. 9 is a perspective view showing another form of the lower splitting member of the tube spacer.

10 is a perspective view showing a state where the lower split member of FIG. 9 and an upper split member of the same shape as the lower split member are engaged with each other.

11 is an enlarged view of a main part showing a connecting portion in which the tube spacers of FIG. 10 are connected in the up-down direction and the left-right direction.

12 is a cross-sectional view taken along the line CC in FIG.

13 is an exploded perspective view of essential parts showing a connecting structure of the tube spacers shown in FIG.

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

[Explanation of symbols]

1 pipe 1A concave 1B convex 2 pipe spacer 3 upper split member 4 lower split member 4A pipe receiving part 4B, 4C, 4D, 4E mating part 4F, 4G left and right wall 4H bottom wall 4I side wall 4K partition wall 4L through Hole 4M Long groove 4T End surface 4a Pipe receiving surface 5 Projection 6 Engaging projection 6A Abutment claw 7 Hole 7A Lower end surface 8 Water discharge hole 9 Annular portion 10 Intermediate member 10a Pipe receiving surface 11 Recess 12 Connecting member 12A Claw portion 12B Main body 12b Thin-walled part 13 Notched part 14 One-sided part 15 Notched part 16 One-sided part

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) F16L 3/00 F16L 3/02

Claims (2)

(57) [Claims] 1. An upper split member and a lower split member, each of which has an outer surface provided with recesses and projections alternately and which support a pipe formed in an annular or spiral shape, the upper split member and the lower split member. At least one of the split members has a tube receiving surface provided with a projection that is inserted into a recess of the tube in a state where the tube is supported by the both members , and the tube receiving surface is aligned in the tube axial direction.
A pipe spacer having an inclined surface extending from one end to the other end . 2. An upper split member and a lower split member which alternately have concave portions and convex portions on an outer surface thereof and which support a pipe formed in an annular or spiral shape, the upper split member and the lower portion. At least one of the split members has a tube receiving surface provided with a projection that enters the recess of the tube in a state where the tube is supported by the both members.
Up and down on one of the two members to connect it
Providing an engaging projection protruding in the direction, the tip claw of this engaging projection
A vertically elongated hole in the other member.
At the bottom of this hole, make a water discharge hole that penetrates from the horizontal direction.
Tube spacers provided .