JP3001778B2 - Parallel invert masu and how to apply this parallel invert masu - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parallel invert which connects a main pipe and a branch pipe, and a method of constructing the parallel invert.

[0002]

2. Description of the Related Art Conventionally, this type is buried at a junction, a bending point, a slope change point, a pipe diameter change point, etc. of a drainage pipe.
Inspection and cleaning of the inside of the pipe are performed.
And the one shown in FIG.
No. 0). That is, this parallel invert 1
Is made of vinyl chloride resin, and has a cleaning mouthpiece 2 projecting upward.
The downstream main pipe connecting tubes 4 and 5 are connected, and a branch pipe connecting tube 6 is provided in parallel with the main pipe connecting tubes 4 and 5.

[0003] Then, 10.
The inspection cylinder 7 of about 0 to 200 mmφ is bonded by adhesive bonding (Tape
r Sig joining) and connecting pipes 4 and 5
The upstream main pipe 8 and the downstream main pipe 9 having a diameter of about 75 to 150 mm are adhesively bonded to the receiving port. Further, a jarring joint 11 is connected to the branch pipe connecting tube 6 of the parallel invert 1 via an elbow joint 10. A U-seal 12 having a U-shaped cross section is attached to the periphery of the opening of the branch pipe connection tube 6 so as to seal the space between the branch pipe connection tube 6 and the arbor joint 11. At the time of this connection, the jarring joint 11 is slid in the direction of arrow A.

[0004] From the elbow joint 10, for example, drainage from a washroom, a washing machine, a flush toilet and the like installed on the floor is flowing. In such a structure, since the branch pipe connecting tube 6 is made parallel to the main pipe connecting tubes 4 and 5, it is possible to install the branch pipe connecting tube 6 simply by inserting the branch pipe connecting tube 6 and connecting it. Since it is a jar-type joint, there is no need to perform adhesive joining, and it is easy to handle small-sized small-sized trusses in a small land, and as a result, prevent poor construction and prevent infiltration water. It does not prevent or leak wastewater.

[0005]

However, in such a conventional apparatus, since the branch pipe connecting tube 6 and the Yaritori joint 11 are in contact only at one point of the U seal 12, the Yaritori joint 11 may be inclined, and if it is inclined, a smooth sliding operation may not be performed, and a sealing failure may be caused. Further, when the parallel invert 1 is handled, since there is no retaining function, the arbor joint 11 may come off from the branch pipe connecting tube 6 and there is a problem that handling is poor.

Accordingly, an object of the present invention is to provide a parallel invertor which can secure a sealing function and a sliding function and can improve the handleability.

[0007]

According to the first aspect of the present invention,
A cleaning mouthpiece is protruded upward , and a main pipe connection pipe to which a drain main pipe is connected is connected to a lower portion of the cleaning mouthpiece, and a branch pipe connection pipe is provided substantially in parallel with the main pipe connection pipe. A short slide bush is installed in the branch pipe of the main body.
Parallel invar with slidably inserted in a watertight manner
A preparative masu, the slide bush, one end of a short tubular slide bushing body which is inserted into the branch pipe connecting sleeve
The water blocking member is installed in the annular groove formed on the outer peripheral surface of the
Opening of the branch pipe connection tube outside the other end of the ride bush body
An outer peripheral flange portion that can be abutted on the end face is formed,
A branch pipe is connected to the outer peripheral surface of the slide bush almost in the middle.
Projection that abuts and locks on the step formed on the inner peripheral surface of the cylinder
Is formed on the other hand, while the inner circumference is formed inside the open end of the branch pipe connection tube.
A flange portion is formed, and the protrusion is formed on the inner peripheral flange portion.
A notch that can be inserted is formed, and a protrusion is inserted into this notch
To rotate the slide bush body by a predetermined angle
The slide bush body is more secure
It is.

[0008] The invention according to claim 2 is a flat panel display according to claim 1.
In the line inverting, the protrusion and the outer flange
A locking groove is formed along the circumferential direction on the outer peripheral surface of the slide bush main body located therebetween .

[0009] The invention according to claim 3 provides the invention according to claim 1 or 2.
Above the parallel invert truss
The inner diameter of the connection part of the slide bush is small, and this connection
The axis of the part is eccentric with respect to the axis of the branch pipe connection cylinder
Things.

According to a fourth aspect of the present invention, there is provided a slide bush of the parallel inverting sill according to any one of the first to third aspects , and the slide bush.
Dispose a short pipe between the id bush and the branch pipe connected to it,
This is a parallel inverting construction method in which the slide bush is protruded from the branch pipe connecting cylinder by a predetermined length and connected to the branch pipe via the short pipe .

According to the first aspect of the present invention, in order to manufacture a parallel invert masu, the invert main body and the slide bush are each formed by injection molding or the like, and thereafter, the annular shape of the slide bush is formed. Attach a waterproof member to the groove. Then, while inserting the water blocking member side of the slide bush into the branch pipe connecting cylinder, the protrusion is aligned with the notch and inserted. Thereafter, the slide bush is rotated by an arbitrary angle to shift the positions of the protrusion and the notch, thereby preventing the slide bush from being pulled out. Therefore, unlike the conventional joint 11, it does not come off accidentally,
The handleability of the parallel invert masu during construction work is good.

When the slide bush is slid and connected, the water blocking member slides on the inner peripheral surface of the branch pipe connecting cylinder, and the protrusion also slides on the inner peripheral surface of the branch pipe connecting cylinder. Unlike the conventional one that slides at one place, a stable sealing performance and sliding performance can be ensured without the slide bush being inclined.

Further, the slide bush is placed in the branch pipe connecting cylinder.
When fully pushed into
The slide bushing comes into contact with the peripheral edge of the
There is no possibility of completely entering the branch pipe connection cylinder.

According to the second aspect of the present invention, the slide bush is slid and drawn by a predetermined amount by forming a plurality of circumferentially parallel locking grooves on the outer peripheral surface of the slide bush body. In this case, if a driver or the like is locked in the locking groove and this principle is used, a predetermined amount can be easily pulled out.

According to the third aspect of the present invention, even when the opening of the branch pipe is small or eccentric with respect to the opening of the branch pipe connecting cylinder, the two are connected by using the slide bush. can do.

According to the fourth aspect of the present invention, by disposing the short pipe between the slide bush and the branch pipe, even if the distance between the branch pipe connecting cylinder and the branch pipe is wide,
By using a short pipe of an appropriate length, it is possible to connect the branch pipe connecting cylinder and the branch pipe by using the slide bush and the short pipe without preparing a slide bush having a long slide length.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. 1 to 5 show one embodiment of the present invention. The same or equivalent members as those in the related art will be described with the same reference numerals.

First, the construction will be described. The parallel inverter 21 has an inverter main body 22 and a slide bush 23.

The invert main body 22 is made of vinyl chloride resin and has a cleaning mouthpiece 24 projecting upward, and an upstream and downstream main pipe connection barrel 25, 26 is connected, and a branch pipe connecting tube 27 is provided in parallel with the two main pipe connecting tubes 25 and 26.
The outer diameter of the receiving port of this cleaning nozzle 24 is about 177 mmφ, and the inspection pipe 7 is bonded and bonded. The outer diameter of the receiving port of the upstream and downstream main pipe connecting pipes 25 and 26 is about 125 mmφ, and The downstream main pipes 8 and 9 are bonded and connected. A plurality of legs 29 project downward from the lower surface of the inverted main body 22.

The slide bush 23 is made of vinyl chloride resin, and is slidably provided in the branch pipe connecting tube 27. The slide bush 23 has a short circular cylindrical slide bushing body 28, this slide bush body 28, an annular groove 28a is formed at one end an outer peripheral surface of the insertion direction side, a branch pipe in the annular groove 28a Connection tube 27
Rubber waterproof member 30 that slides on and seals the inner peripheral surface of the rubber
Is installed .

Further, the annular groove of the slide bush body 28
On the other end side opposite to 28a, an outer peripheral flange portion 28 that can abut on the peripheral edge portion 27b of the opening portion 27a of the branch pipe connecting tube 27 is provided.
b is formed. Also, the slide bush body 28
A total of four protrusions 28c are formed on the outer peripheral surface at substantially the center at 90 ° intervals along the circumferential direction. Although only two locations on the left and right are disclosed in the drawings, they are also formed on the top and bottom . These projections 28c are formed in different widths.

On the other hand, the opening 27a of the branch pipe connecting cylinder 27
Of the inner peripheral flange portion 2 protruding inward
7c is formed, and the inner peripheral flange portion 27c is formed as shown in FIG.
The notch 27 into which the projection 28c can be inserted as shown in FIG.
d are formed at four places. These notches 27d are formed with different widths corresponding to the respective protrusions 28c, and the notches 27d and the protrusions 28c have a one-to-one relationship so that they can be inserted only at one place. It has become. The slide bush body 28 is prevented from being pulled out by inserting the protrusion 28c into the notch 27d and rotating the slide bush body 28 by a predetermined angle.

The projection 28c is connected to the branch pipe connecting cylinder 27.
When the slide bush body 28 is pushed in to the maximum extent while the slide bush 28 is pushed to the maximum extent, it comes into contact with the step 27 e formed on the inner circumference of the branch pipe connection tube 27. Further, the slide bush body 28
In the present embodiment, a total of three locking grooves 28d extending in the circumferential direction are formed on the outer peripheral surface of the device.

In order to manufacture such a parallel invert box 21, the invert box body 22 and the slide bush 23 are respectively formed by injection molding or the like, and then the water stopping member 30 is inserted into the annular groove 28a of the slide bush 23. Mounting ( distribution
Established ? ). Then, the water blocking member 30 side of the slide bush 23 is inserted into the branch pipe connection cylinder 27, and the four protrusions 28c are inserted into the four notches 27d having the same width.

Thereafter, the slide bush 23 is rotated by an arbitrary angle to shift the position of the protrusion 28c and the notch 27d, thereby preventing the slide bush 23 from being pulled out. Therefore, the conventional Yaritori joint 1
In the state in which the slide bush 23 is pushed in to the maximum while the slide bush 23 is pushed in
Abuts on the step 27e, so that the slide bush 23
Does not completely enter the branch pipe connection cylinder 27, and the parallel invert truss 21 is easy to handle during construction work.

Next, the parallel inversion of the above configuration 2
The first construction method, in particular, two types of construction methods for connecting to the branch pipe 33 will be described with reference to FIG. In this construction, as shown in FIG. 5A, a short pipe 35 having a length of about 200 mm is used.
Use

First, the first construction method will be described. As shown in FIG. 5 (b1), the upstream and downstream main pipes 8 and 9 are connected to the parallel invert 21 and the square 21 is fixed to a predetermined position. It is located at the location. In this state, the slide bush 23 is pushed into the branch pipe connecting tube 27 to the maximum (see FIG. 1). On the other hand, the branch pipe 33 into which the short pipe 35 is inserted and connected is disposed at a predetermined position.

From this state, the slide bush 23 is slid to the right in the drawing and pulled out, and the short pipe 35 is inserted and connected into the enlarged fitting portion 28e of the slide bush main body 28 (FIG. c1)). When the slide bush 23 slides, the water blocking member 30 slides, and the protrusion 28c also slides on the inner peripheral surface of the branch pipe connecting cylinder 27. Thus, stable sealing performance and sliding performance can be ensured without the slide bush 23 being inclined.

When the slide bush 23 is slid and pulled out by a predetermined amount, since the slide resistance is large in order to secure the sealing performance and the like, the driver or the like is moved to the inner flange portion 27c and the outer flange portion 28b. , The driver is swung, and the slide bush 23 is slid by applying the principle of leverage.

The locking groove 28d is formed in the inner peripheral flange 2
7c, this locking groove 2 is exposed to the outside.
Insert a screwdriver into 8d and slide in the same way. Thus, the slide bush 23 is protruded by the protruding amount. In the state in which the slide bush 23 is maximally protruded, the protrusion 28c abuts on the inner peripheral flange 27c and the slide bush 23 is stopped from being pulled out.

Next, a second construction method will be described.
This time, with the short pipe 35 inserted in the slide bush 23 and connected in advance, the parallel inverting crates 21 and the branch pipe 33 are provided (see (b2) in FIG. 5). Next, the slide bush 23 is pulled out in the same manner as described above, and the short pipe 35 is inserted into the branch pipe 33 and connected.

FIGS. 6 and 7 show a second embodiment of the present invention. In this embodiment, the slide bush 37 is different from that of the first embodiment. This slide bush 37
The slide bush body 38 has an annular groove 38a, an outer peripheral flange 38b, a protrusion 38c, and a locking groove 38d formed in the slide bush body 38 as in the first embodiment. Further, a tapered portion 38e is formed in the slide bush body 38, and a fitting portion 38f into which a short pipe (not shown) is inserted and connected is provided at the right end in FIG. 6 of the tapered portion 38e. . The opening of the fitting portion 38f has a smaller diameter and an eccentric position than the opening at the left end in FIG. A plurality of ribs 38g are formed between the fitting portion 38f and the outer cylinder.

In this case, when the diameter of the short pipe 35 is smaller than the diameter of the branch pipe connecting cylinder 27 and the opening of the short pipe 35 is located at an eccentric position with respect to the opening of the branch pipe connecting cylinder 27. However, if the slide bush 37 of this embodiment is used,
Both can be easily connected. In this case,
The other configuration and operation are the same as those of the first embodiment, and thus the description is omitted.

[0034]

As described above, according to the first aspect of the present invention, the protrusion of the slide bush is aligned with the notch and inserted. Thereafter, the slide bush is rotated by an arbitrary angle to shift the positions of the protrusion and the notch, thereby preventing the slide bush from being removed. Therefore, unlike the conventional joint 11, it does not come off carelessly, and the handleability during the construction work of the parallel inverted square can be improved.

When the slide bush is slid and connected, the water blocking member slides on the inner peripheral surface of the branch pipe connecting cylinder, and the protrusion also slides on the inner peripheral surface of the branch pipe connecting cylinder. Unlike the conventional one that slides at one place, a stable sealing performance and sliding performance can be ensured without the slide bush being inclined.

Then, slide the slide bush into the branch pipe connection tube.
When fully pushed into
The slide bushing comes into contact with the peripheral edge of the
There is no possibility of completely entering the branch pipe connection cylinder.

According to the second aspect of the present invention, by forming a locking groove along the circumferential direction on the outer peripheral surface of the slide bush main body, when the slide bush is slid and pulled out by a predetermined amount, a driver is required. If this principle is used by locking the locking member in the locking groove, a predetermined amount can be easily pulled out.

According to the third aspect of the present invention, even when the opening of the branch pipe is small or eccentric relative to the opening of the branch pipe connecting cylinder, the two are connected by using the slide bush. can do.

According to the fourth aspect of the present invention, by disposing the short pipe between the slide bush and the branch pipe, even if the distance between the branch pipe connecting cylinder and the branch pipe is wide,
By using a short pipe of an appropriate length, there is no need to prepare a slide bush with a long slide length, and the slide bush and the short pipe can be used to connect the branch pipe connecting cylinder and the branch pipe. It has a beneficial effect.

[Brief description of the drawings]

FIG. 1 shows a parallel inverter according to a first embodiment of the present invention ;
It is a plan view showing.

FIG. 2 is a view of the parallel inverted square in FIG . 1 viewed from the direction A.
It is a bright view.

FIG. 3 is an explanatory view of the parallel invert square of FIG . 1 viewed from a direction B with a slide bush removed.

FIG. 4 is a plan view showing a state where a slide bush is drawn out to the maximum in FIG . 1 ;

FIG. 5 is an explanatory diagram showing a construction method of the parallel invert masque in FIG . 1 ;

6 is a longitudinal sectional view showing a modification of the slide bush.

7 is a view of the slide bush of FIG . 6 as viewed from the direction of arrow C.

FIG. 8 is a partially cutaway view of a conventional parallel inverted square.
It is to front view.

FIG. 9 is a plan view of the parallel inverter shown in FIG . 8 ;

[Explanation of symbols]

21 Parallel Inverting Unit 22 Inverting Unit Main Body 23, 37 Slide Bush 24 Cleaning Tube 25, 26 Main Pipe Connection Tube 27 Branch Pipe Connection Tube 27a Opening 27b Peripheral Edge 27c Inner Peripheral Flange 27d Notch 27e Step 28, 38 Slide Bush Main body 28a, 38a Annular groove 28b, 38b Outer flange 28c, 38c Projection 28d, 38d Locking groove 28e, 38f Fitting part 30 Waterproof member 33 Branch pipe 35 Short pipe

Claims (4)

(57) [Claims] 1. A cleaning nozzle protrudes upward , and a main connecting tube to which a drainage main pipe is connected is connected to a lower portion of the cleaning nozzle, and a branch is connected substantially in parallel with the main connecting tube. A short tube-shaped slide is installed in the branch tube connection tube of the invert trout body provided with the tube connection tube.
Id bush is slidably inserted in a watertight manner
A parallel invert masu, the slide bush is inserted into the branch pipe connecting sleeve
Formed on the outer peripheral surface of one end of the short cylindrical slide bush body
The water blocking member is attached to the annular groove
Outside the other end of the body, it can contact the open end face of the branch pipe connection tube
The outer peripheral flange is formed and the slide bush
Formed on the outer peripheral surface of almost the middle part of the main body and on the inner peripheral surface of the branch pipe connection tube
A projection is formed to abut on and lock the stepped portion.
On the other hand, an inner peripheral flange portion is formed inside the open end of the branch pipe connection tube.
Notch into which the protrusion can be inserted into the inner peripheral flange portion
Part is formed, and a projection is inserted into this
By rotating the main body of the
The parallel invert is characterized in that the main body of the shoe is retained. Wherein Masu parallel inverted according to claim 1, wherein the scan <br/> locking grooves along the outer peripheral surface of the ride bushing body in the circumferential direction is formed to be located between the projection and the outer peripheral flange portion. 3. The contact of a slide bush on the outer peripheral flange portion side.
The inner diameter of the connecting part is small, and the axis of this connecting part is
3. The parallel invert according to claim 1, wherein the parallel invert is eccentric with respect to the axis of the cylinder . 4. A slide bush parallel invert masu of claims 1 to 3, wherein, connected to the said slide bush
That is disposed to short pipe between the branch pipe, said slide bush from the branch pipe connecting cylinder is protruded a predetermined length, parallel inverted masu, characterized in that connected to the branch pipe through the short tube Construction method.