JP3467733B2 - Piping headers and piping header members - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping header (piping branch pipe) frequently used in a piping path for flowing a fluid and a piping header member constituting the piping header.

[0002]

2. Description of the Related Art In a residential kitchen, bathroom, washroom, hand-washing room, laundry facility, etc., a facility for supplying water or hot water from a water source or hot water boiler, a floor heating facility, or a hot water supply piping system for a snow melting system on a road, etc. Pipe headers are often used in the water and hot water supply piping routes.

Conventionally, in the pipe header , a large number of branch pipe connecting screw holes communicating with the fluid flow passage are arranged in a row on one side surface of a tubular pipe header having a fluid flow passage formed at the center in the longitudinal direction. A branch pipe connecting screw hole of the appropriate number and position is selected according to the number and position of branch pipes required at the piping site, and the branch pipe is connected to the branch pipe connecting screw hole.
To the unused screw holes for connecting branch pipes
It is sealed and screwed.

However, since the branch pipe is not always connected to all the branch pipe connecting screw holes , the branch pipe connecting screw is not provided.
Poor hole usage, which often results in
The piping header has an extra length, which is uneconomical, and also has a drawback that the installation space for the piping header requires a large space.

[0005]

DISCLOSURE OF THE INVENTION The present invention has improved the above-mentioned drawbacks of the conventional piping header, and the length of the piping header can be easily expanded and contracted at the piping site to match the number of branch pipes required. The number of branch pipe connection ports can be easily increased or decreased, the length of the piping header to be used is minimized, the waste of material is reduced, the weight of the piping header is reduced, and the installation space is reduced.

[0006]

In order to achieve the above-mentioned objects and objects, the present invention forms a fitting connection convex portion at one end of a cylindrical body through which a fluid flow passage penetrates at the center in the longitudinal direction. A fitting header is formed by forming a fitting connection recess for tightly joining the outer periphery of the fitting connection projection at the end and forming one or a few branch pipe connection ports on the side surface that communicate with the fluid flow path, and a pipe header member. At one end of the strip, a fitting connection concave portion where the fitting connection convex portion of the pipe header member is closely fitted or a fitting connection convex portion where the fitting connection concave portion of the pipe header member is tightly fitted is formed. A pipe connection port is provided at the end or the other end is sealed to form a pipe header end member, and any number of the pipe header members are arranged in series between the pipe header end members, and the fitting connection convex portion and The mating connection recess is detachably and airtightly matingly connected to form a piping header. To.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The basic embodiment of the pipe header according to the present invention is such that a fitting connection convex portion is formed at one end of a cylindrical body having a fluid passage passing through the center portion in the longitudinal direction and the other end is formed at the other end. An arbitrary number of pipe header members in which a fitting connection concave portion that is closely joined to the outer periphery of the fitting connection convex portion is formed and one or a few branch pipe connection ports that communicate with the fluid flow path are formed on the side surface And the fitting connection convex portion and the fitting connection concave portion of the adjacent pipe header members are detachably and airtightly fitted and connected.

In another main embodiment of the pipe header according to the present invention, a fitting connection convex portion is formed at one end of a tubular body having a fluid passage passing through the center portion in the longitudinal direction, and the fitting is provided at the other end. A pipe header member in which a fitting connection concave portion that is closely joined to the outer periphery of the connection convex portion is formed and one or a few branch pipe connection ports that communicate with the fluid flow path are formed on the side surface, and the pipe header member is provided at one end of the tubular body. Forming a fitting connection concave portion for tight fitting of the fitting connection convex portion of the header member or a fitting connection convex portion for closely fitting the fitting connection concave portion of the piping header member, and providing a pipe connection port at the other end Alternatively, an arbitrary number of them may be arranged in series between two pipe header end members that seal the other end, and the adjacent fitting connection convex portion and fitting connection concave portion are detachably and airtightly engaged and connected. It was done.

A basic embodiment of the pipe header member according to the present invention is such that a fitting connection convex portion is formed at one end of a cylindrical body having a fluid passage passing through the center portion in the longitudinal direction and the fitting is made at the other end. A fitting connection concave portion that is closely joined to the outer periphery of the connection convex portion is formed, and one or a small number of branch pipe connection ports that communicate with the fluid flow path are formed on the side surface.

Another main embodiment of the piping header member according to the present invention is a fitting connection concave portion or a fitting of the piping header member in which the fitting connection convex portion of the piping header member is closely fitted to one end of the tubular body. A pipe header member for a pipe header end member, in which a fitting connection convex part that closely fits in a mating connection concave part is formed and a pipe connecting port is provided at the other end or the other end is sealed.

[0011]

Embodiments of the pipe header of the present invention and a pipe header member used therefor will be described below with reference to FIGS. 1 to 5.

In FIGS. 1 and 2, reference numeral 1 is a pipe header member, and 2 and 3 are pipe header members (abbreviated as "pipe header end members") which are members of the pipe header end portion. , 3, an arbitrary number of pipe header members 1 are detachably connected in series to form a pipe header P.

The pipe header member 1 is a substantially rectangular tubular body, and a fluid passage 1 serving as a water supply / hot water supply passage is formed at the center in the longitudinal direction.
1, a cylindrical fitting connection convex portion 12 is formed at one end, and a cylindrical fitting connection concave portion 13 is formed at the other end where the outer periphery of the fitting connection convex portion 12 is closely joined. . A branch pipe connection port (a screw hole in this embodiment) 14 to which a branch pipe (not shown) is detachably connected is provided on one side surface 1a of the pipe header member 1. The number of branch pipe connection ports 14 provided in one pipe header member 1 is one or a small number corresponding to the minimum required number of branch pipes normally experienced.

An engaging projection 15 is projected from the root of the fitting connection convex portion 12, and the ring-shaped groove 1 is formed on the outer periphery of the tip portion thereof.
2a is formed, and the O-ring 16 is fitted in the ring-shaped groove 12a. Further, at the tip of one side surface 1b of the fitting connection recess 13, a split groove 17 for fitting the engagement projection 15 and guiding the fitting projection 15 in the longitudinal direction is formed, and the inner circumference of the fitting connection recess 13 is formed. On the surface, a ring-shaped groove 12b is formed which communicates with the split groove 17 and into which the engaging projection 15 is fitted and guided.

The pipe header end member 2 has one end face 2
c is sealed, and the pipe header member 1 is attached to the other end.
Similarly, the fitting connection concave portion 18 into which the fitting connection convex portion 12 of the pipe header member 1 is closely fitted, and the split groove (corresponding to the split groove 17) into which the engaging projection 15 is fitted, (Not shown)
In addition, a ring-shaped groove (corresponding to the ring-shaped groove 12b, not shown) is formed, and a branch pipe connection port 19 is formed on one side surface 2a of the pipe header end member 2.

Further, the pipe header end member 3 is formed with a pipe connection port (a screw hole in this embodiment) 20 to which a pipe (not shown) is connected at one end thereof, and the pipe header end member 3 is provided at the other end thereof. A fitting connection convex portion 21 that closely fits in the fitting connection concave portion 13 is formed, and an engagement protrusion 24 is provided. A branch pipe connection port 22 is formed on one side surface 3a of the pipe header end member 3.

Depending on the specifications of the pipe, the end face 2c of the end member 2 of the pipe header may also have a pipe connection port (pipe connection port 2
Equivalent to 0) may be formed. Also, instead of the fitting connection concave portion 18 formed at the end of the pipe header end member 2, a fitting connection convex portion (corresponding to the fitting connection convex portion 21)
In place of the fitting connection projection 21 formed at the end of the pipe header end member 3, and the fitting connection recess (fitting connection recess 1
(Equivalent to 8) may be formed.

When the pipe header P is constructed by using the pipe header member 1 and the pipe header end members 2 and 3, two pipe header members 1 are coaxially arranged in series,
With the engagement projection 15 of one piping header member aligned with the split groove 17 of the other piping header member, the fitting connection convex portion 12 of one piping header member is fitted with the fitting connection concave portion 13 of the other piping header member. When the engaging projection 15 hits the end of the split groove 17, the one pipe header member 1 is rotated as shown by an arrow M, so that the engaging projection 15 is ring-shaped groove 12b of the other pipe header member. And the two pipe header members 1 and 1 are connected to each other. In this state, the fitting connection convex portion 12 and the fitting connection concave portion 13 are closely fitted and the O-ring 16
Thus, the outer peripheral surface of the fitting connection convex portion 12 and the inner wall surface of the fitting connection concave portion 13 are hermetically sealed. Also connected 2
If one of the pipe header members 1 and 1 is rotated as shown by an arrow M and the engaging projection 15 is aligned with the position of the split groove 17 and the pipe header members 1 and 1 are separated, the two pipe header members 1 are , 1 can be easily separated.

Similarly, between the pipe header member 1 and the pipe header end members 2 and 3, the fitting connection convex part 12 is fitted in the fitting connection concave part 18, and the fitting connection convex part is fitted in the fitting connection concave part 13. Two
By fitting 1 to each other, the pipe header P is configured by being fitted and connected to each other in an airtight and detachable manner. By arbitrarily selecting the number of pipe header members 1 to be fitted and connected, it is possible to efficiently increase or decrease the number of branch pipe connection ports 14 of the entire pipe header P in accordance with the required number of branch pipes. .

Further, since the pipe header members 1 and 1 and the pipe header end members 2 and 3 can be rotated in the directions of the arrows M, a large number of branch pipe connection ports 14, 19, 22 are provided.
You can also adjust the orientation of.

FIG. 3 shows another embodiment of the pipe header member according to the present invention. Practically, there is a case where a control valve for controlling the flow / shutoff of the fluid flowing through each branch pipe or for controlling the flow rate of the fluid is required.In this embodiment, the control valve is integrated with the pipe header member. It is what constitutes. That is, 31 is a pipe header member, and similarly to the pipe header member 1 shown in FIGS. 1 and 2, a cylindrical fitting connection convex portion 32 is formed at one end thereof, and another pipe header member is fitted at the other end. A fitting connection concave portion (corresponding to the fitting connection concave portion 13 of FIG. 1) in which the mating connection convex portion 32 is closely joined is formed, and an engaging projection of another piping header member (see FIG. 2) is formed on the one side surface 31b. A split groove 33 for guiding the engaging projection 15) is formed, and a branch pipe connection port (corresponding to the branch pipe connection port 14 in FIGS. 1 and 2) is formed on the one side surface 31a.
Are formed. Then, a control valve 34 for controlling the flow or cutoff of the fluid flowing through the branch pipe or controlling the flow rate of the fluid according to the position of the branch pipe connection port on the one side face 31a of the pipe header member 31 is provided on the one side face 31a. The control valve 34 and the branch pipe connector 35 are connected to the control valve 34, so that the connection work efficiency of the pipe header and the branch pipe via the control valve can be improved.

As is apparent from the above embodiments, according to the present invention, the length of the pipe header can be expanded and contracted by a very simple operation according to the number of branch pipes required, and the branch pipe of the pipe header can be expanded and contracted. The number of connection ports can be easily increased or decreased according to the number of branch pipes required. As a result, the length of the piping header can be minimized, the material of the piping header can be saved, the weight can be reduced, and the space occupied by the piping header in the equipment can be reduced.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a piping header showing an embodiment of the present invention.

FIG. 2 is a perspective view of a piping header member that constitutes the piping header.

FIG. 3 is a perspective view showing another embodiment of the piping header member.

[Explanation of symbols]

P: Piping header 1: Piping header member 1a, 1b: Side surfaces of the piping header member 1 2, 3: Piping header end member 2a: side surface of the pipe header end member 2 2c: End surface of piping header end member 2 3a: Side surface of the pipe header end member 3 11: Fluid flow path 12: Mating connection convex part 12a: Ring-shaped groove 12b: Ring-shaped groove 13: Fitting connection recess 14: Branch pipe connection port 15: Engagement protrusion 16: O-ring 17: Split groove 18: Fitting connection recess 19: Branch pipe connection port 20: Pipe connection port 21: Convex part for mating connection 22: Branch pipe connection port 23: Mating connection convex portion 24: Engagement protrusion 25: Branch pipe connection port 31: Piping header member 31a, 31b: Side surfaces of the piping header member 31 32: Convex part for fitting connection 33: Split groove 34: Control valve 35: Branch pipe connector

Claims (8)

(57) [Claims] 1. A fluid passage penetrates through a central portion in the longitudinal direction.
Concentric to one end of the tubular body with respect to the longitudinal centerline of the tubular body
A cylindrical fitting connection convex part is formed, and at the other end of the cylindrical body
Concentric cylindrical shape with respect to the longitudinal centerline, and the fitting connection convex
The outer periphery of the convex connection part of the fitting connection of another cylindrical body of the same shape as the part
Is formed on the side surface of the cylindrical body.
A branch pipe connection port leading to the fluid flow path is formed and
Perpendicular to the longitudinal centerline at the root of the continuous protrusion
Extend the engaging projection toward the
Before the engagement projection is detachably engaged with the mouth and guided
The split groove in the longitudinal direction is formed and the fitting connection recess is formed.
The engaging projection is fitted to the inner peripheral surface of the
Piping header with a ring-shaped groove that is guided in the circumferential direction
-Arrange any number of members in series, and
Fit the fitting connection convex part and the fitting connection concave part of the dar member
The engagement protrusion through the split groove into the ring-shaped groove.
Detachably fitted to the adjacent pipe header
Without using screws to prevent the material from coming off,
Characterized by detachably connecting several pipe header members
And plumbing header. 2. A fluid flow path penetrates through a central portion in the longitudinal direction.
At one end of the regular tetragonal prism, at the longitudinal centerline of the regular tetragonal prism
On the other hand, a concentric cylindrical fitting connection convex portion is formed,
At the other end of the columnar body, concentric with the center line in the longitudinal direction.
Other fitting tetragonal prism fitting connection projections of the same shape as the fitting connection projections
A fitting connection recess is formed to tightly join the outer periphery of the
The side that is the outer peripheral surface of the quadrangular prism is connected to the fluid flow path
The manifold connection port is formed and the
Adjacent to the regular tetragonal prism perpendicular to the longitudinal centerline.
Facing in the middle between the perpendiculars to each of the mating sides
Align the fitting engagement projections with the
The engaging protrusions can be freely attached to and detached from one side surface of a regular quadrangular prism
When the longitudinal split groove that is engaged and guided is formed,
Before communicating with the split groove on the inner peripheral surface of the fitting connection recess
A ring-shaped groove that engages with the engagement protrusion and is guided in the circumferential direction.
Arrange any number of piping header members with
And fit with the fitting connection protrusions of the adjacent pipe header members.
Because fitted a slip connection recesses aligned, said split groove the engaging projection
Removably fit into the ring-shaped groove through
Use a screw to prevent the pipe header member
The multiple pipe header members can be attached and detached without
A piping header characterized by being connected to. 3. The adjoining regular tetragonal prisms according to claim 2.
Positive 4 is the middle direction between the perpendiculars to each of the sides.
The direction of the corner where the adjacent side faces of the prism are joined
Plumbing header characterized by. 4. A flow to a branch pipe connected to a branch pipe connection port.
A valve for controlling body flow is integrated with the branch pipe connection port
A contract characterized by including a pipe header member formed in
The piping head according to any one of claims 1 to 3.
Dar. 5. A fluid flow path penetrates through a central portion in the longitudinal direction.
Concentric to one end of the tubular body with respect to the longitudinal centerline of the tubular body
A cylindrical fitting connection convex part is formed, and at the other end of the cylindrical body
Concentric cylindrical shape with respect to the longitudinal centerline, and the fitting connection convex
The outer periphery of the convex connection part of the fitting connection of another cylindrical body of the same shape as the part
Is formed on the side surface of the cylindrical body.
A branch pipe connection port leading to the fluid flow path is formed and
Perpendicular to the longitudinal centerline at the root of the continuous protrusion
Extend the engaging projection toward the
Before the engagement projection is detachably engaged with the mouth and guided
The split groove in the longitudinal direction is formed and the fitting connection recess is formed.
The engaging projection is fitted to the inner peripheral surface of the
The cylindrical body is formed with a ring-shaped groove that is guided in the circumferential direction.
The feature is that no screws are attached to the
Pipe header member. 6. A fluid flow path penetrates through the central portion in the longitudinal direction.
At one end of the regular tetragonal prism, at the longitudinal centerline of the regular tetragonal prism
On the other hand, a concentric cylindrical fitting connection convex portion is formed,
At the other end of the columnar body, concentric with the center line in the longitudinal direction.
Other fitting tetragonal prism fitting connection projections of the same shape as the fitting connection projections
A fitting connection recess is formed to tightly join the outer periphery of the
The side that is the outer peripheral surface of the quadrangular prism is connected to the fluid flow path.
The manifold connection port is formed and the
Adjacent to the regular tetragonal prism perpendicular to the longitudinal centerline.
Facing in the middle between the perpendiculars to each of the mating sides
Align the fitting engagement projections with the
The engaging protrusions can be freely attached to and detached from one side surface of a regular quadrangular prism
When the longitudinal split groove that is engaged and guided is formed ,
Before communicating with the split groove on the inner peripheral surface of the fitting connection recess
A ring-shaped groove into which the engaging protrusion fits and is guided in the rotation direction.
Is formed, and a screw is attached to the regular square prism to prevent it from coming off.
Piping header member characterized by not falling. 7. The adjoining regular tetragonal prism body according to claim 6.
Positive 4 is the middle direction between the perpendiculars to each of the sides.
The direction of the corner where the adjacent side faces of the prism are joined
Pipe header member characterized by. 8. A flow to a branch pipe connected to a branch pipe connection port.
A valve for controlling body flow is integrated with the branch pipe connection port
8. The method according to claim 5, which is characterized in that
The piping header member according to any one of items.