JPH0735898Y2 - Drain - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a drainage system attached to a water channel such as a sewer pipe.

[Prior Art] When a drainage basin is attached to a drain such as a sewer pipe, conventionally, drainage is performed by using a ball type universal joint 50 as shown in Fig. 4 or a curved joint 60 as shown in Fig. 5. The difference in orientation between the connection port and the pipe connected to it was absorbed.

The ball type universal joint 50 of FIG. 4 has a straight socket 52 for two hollow spheres 51, 53 slidably fitted to each other.
And the insertion port 54 are integrally provided separately.
54 is inserted into the connection port A ₁ of the drainage basin A, and the pipe 55 is inserted into the receiving port 52. And the insertion port 54 and the connection port
A ₁ , the receiving port 52 and the pipe 55 are joined with an adhesive so that the watertightness of their fitting portions is secured.

The curved joint 60 shown in FIG. 5 has a predetermined bending angle such as 30 ° or 45 ° between the both ends of an arcuate tubular body 61, and has a straight receiving port 62 at one end and the other end. A straight insertion opening 63 is integrally formed with the insertion opening 63, and the insertion opening 63 is inserted into the connection opening A ₁ of the drainage A, and the pipe 65 is inserted into the receiving opening 62. Then, the insertion opening 63 and the connection opening portion A ₁ , and the receiving opening 62 and the pipe 65 are joined with an adhesive so that the watertightness of the fitting portion is secured.

[Problems to be solved by the invention] According to the ball type universal joint 50 of FIG.
By sliding 51 and 53 and changing their relative positions, the bending angle between the receiving port 52 and the insertion port 54 can be changed, so that the drainage A and the pipe 55 can be freely moved within a certain angle range. Can be bent and connected to. However, this one has a straight socket 52 and an insert 5 in the hollow spheres 51, 53.
4 has a special shape integrally provided, and the fitting accuracy of the hollow spheres 51, 53 needs to be relatively high.

The bend joint 60 shown in FIG. 5 cannot change the bend angle of the receiving port 62 and the insertion port 63, so the drainage A and the pipe 65 are bent and connected at a fixed angle.
There was a problem of lack of flexibility. In addition, a plurality of types of bending joints 60 in which the bending angle between the receiving opening 62 and the insertion opening 63 is set to various angles such as 30 degrees and 45 degrees are prepared, and a method of properly using them is also performed. However, this method also has a problem in that it is necessary to prepare a large number of types of bending joints 60 in order to deal with various differences in the orientations of the drainage basin A and the pipe 65.

Regarding the bending joint 60 of FIG. 5, the bending angle is finely adjusted by using some rattling generated at the fitting portions of the insertion opening 63 and the connection opening A ₁ and the receiving opening 62 and the pipe 65. However, rattling that can be used for fine adjustment occurs only when the socket 62 and the connection port A ₁ have a large diameter, and when they have a small diameter, rattling occurs. It is difficult to use the tsuki for fine adjustment of the bending angle.

Also, if the joints 50, 60 shown in FIGS. 4 and 5 are used, the joints 50, 60 will be used in addition to the drainage basin A. Therefore, in terms of price, the joints 50, 60 will be drained A There is also a problem in that the price of the drainage mascot is expensive because the price of the fittings 50, 60 is included in the price.

The present invention has been made in view of the above problems. By providing a universal joint function at a connection portion with a pipe in a drainage basin and further simplifying the configuration of the connection portion, the above-described slide type flexible Fitting 50 and bent fitting 60
It is an object of the present invention to provide an inexpensive drainage stake capable of connecting pipes at any bending angle without using.

[Means for Solving the Problems] The drainage basin according to claim 1 has a main body having one or more connection ports curved with a constant radius of curvature, and is equivalent to the above connection ports of the main body. A pipe connection port is provided at one end of a cylindrical body that is curved with a radius of curvature and has the same diameter in each axial direction, and is connected to the above-mentioned connection port part in a fitting manner, and at any point in the axial direction. And a socket capable of cutting the tubular body.

In the drainage basin according to the second aspect, the connection opening portion of the main body has a length capable of adjusting the insertion margin of the cylindrical body of the socket with respect to the connection opening portion.

[Operation] According to the configuration of the first claim, it is also possible to connect the socket cylindrical body to the connection opening of the main body without cutting the cylindrical body of the socket.
It is also possible to cut the tubular body at a predetermined position in the axial direction to shorten the length of the tubular body, and connect the shortened tubular body to the connection opening portion of the main body in a fitting manner. Comparing the case where sockets having different lengths of cylinders are respectively connected to the connection ports of the main body, the bending angle is larger when the length of the cylinder is shorter than when it is short.

According to the structure of the second aspect, it is possible to increase / decrease the insertion margin of the cylindrical body of the socket with respect to the connection opening portion of the main body, thereby increasing / decreasing the bending angle.

[Embodiment] FIG. 1 is a cross-sectional plan view showing a usage state of a drainage basin A according to an embodiment of the present invention. In the figure, 1 is a main body integrally formed of polypropylene resin, polyvinyl chloride resin, etc., and is connected to the water passage 11 at two places around the body 12 having the water passage 11 at the bottom. 14 are provided respectively. Then, the connection port portion 13 on one side is curved with a constant radius of curvature at a portion H excluding its root portion,
An annular stepped portion 13a is provided at the root portion. On the other hand, the connection port portion 14 on the other side is straight, and an annular stepped portion 14a is provided at the base portion thereof.

Reference numeral 2 denotes a socket, which has a structure in which a pipe connection port 22 is integrally provided at one end of a cylindrical body 21 that is curved with a constant radius of curvature and has the same outer diameter in each axial direction. The other end 23
Is used as an insertion port and is inserted into the connection port portion 13 of the main body 1, and its end face is abutted against the stepped portion 13a. Here, the stepped portion 13a serves to regulate the insertion allowance of the other end portion 23 of the tubular body 21, and the inner surface of the tubular body 21 is connected to the connection port portion 13a.
It plays the role of making the inner surface 13b of the root continuous without any step. The radius of curvature of the tubular body 21 in the socket 2 is equal to the radius of curvature provided in the connection port portion 13, and the outer diameter of each part of the tubular body 21 is set to a size that can be inserted into the connection port portion 13 for connection. Has become. The socket 2 is formed of a synthetic resin such as polypropylene resin or polyvinyl chloride resin, so that the tubular body 21 can be cut at any position in the axial direction.

Further, the pipe connection port 22 of the socket 2 and the connection port portion 14 of the masquerade body 1 are used as receiving ports, and the pipes 31 and 32 are inserted therein.

In the above, the bending angle θ between the drainage basin A and the pipe 31 is determined by the radius of curvature and the length of the tubular body 21, and the bending angle θ becomes smaller as the radius of curvature of the tubular body 21 becomes smaller or the length of the tubular body 21 becomes longer. On the other hand, the larger the radius of curvature of the tubular body 21, or the shorter the length of the tubular body 21, the smaller the bending angle θ. Therefore, when it is necessary to set a small bending angle θ, the tubular body 21 is cut at the intermediate portion in the axial direction.
It is only necessary to shorten the length of the tube and insert the other end of the shortened tube body 21 into the connection port section 13 as an insertion port, and conversely, when it is necessary to set a large bending angle θ, The body 21 may be used as it is without being cut, or the cut portion may be changed to increase the length of the tubular body 21.

If you mark the cut points at multiple locations in the axial direction of the cylindrical body 21 of the socket 2 so that the relationship between those cut points and the bending angle θ can be known, it will be drained A This is convenient because it helps to recognize the bending angle θ when the tubular body 21 is cut and used in the field.

For the drainage basin A, it is possible to provide the socket 2 on the downstream side so that water flows in the arrow X direction, or to make the socket 2 upstream and allow water to flow in the arrow Y direction. In addition, the inner diameter of the cylindrical body 21 of the socket 2 is made the same in each axial portion, and the cylindrical body 21 is increasingly connected to the connection port of the main body 1.
It may be allowed to be fitted on the outer surface of the cylindrical body 13. In such a case, the other end portion 23 of the cylindrical body 21 (including a cut end portion formed by cutting) can be used as a receiving port, and the like. The connection port portion 13 is inserted into the end portion 23. Pipe connection 22
The same applies to the relationship between the pipe 31 and the pipe 31. The cylinder
The watertightness of the connection point between the 21 and the connection port 13 can be ensured by inserting a seal ring into the connection point or joining the connection point with an adhesive having a sealing property.

FIG. 2 is a cross-sectional plan view of another embodiment. In this embodiment, the connection port portion 13 of the main body 1 is made sufficiently long so that the insertion margin L of the cylindrical body 21 of the socket 2 with respect to the connection port portion 13 can be increased or decreased. The other parts of the configuration are the same as those described with reference to FIG. 1, so the same or corresponding parts are designated by the same reference numerals.

According to this example, when the insertion margin L is lengthened, the bending angle θ becomes large, and when it is shortened, the bending angle θ becomes small. Therefore, the bending angle θ changes depending on the increase or decrease of the insertion margin L. Also in this example, since the bending angle θ can be changed by cutting the cylindrical body 21 of the socket 2, the bending angle in a wider range can be obtained by using such cutting and changing the insertion margin L in combination. The degree θ can be adjusted.

In the drainage basin A described in FIG. 2, the connection port 13 is
It is a requirement that it is longer than the minimum length at which the cylindrical body 21 can be connected in a fitting manner. Generally, the diameter of the connection port 13 is
For a drainage basin of about 100 mm, the length of the connection port 13 required to connect the tubular body 21 is set to about 50 mm, so the length of the connection port 13 needs to be longer than 50 mm. From this, when the length of the connection port 13 is longer than 50 mm,
The tubular body 21 can be taken in and out within a range of a length obtained by subtracting 50 mm from the length of the connection port portion 13, and the bending angle θ of the tubular body 21 can be adjusted within that range. However, it is not necessary to make the connection opening 13 too long. This is because the bending angle θ can be adjusted by cutting the tubular body 21.

By the way, increasingly, the connection port 13 of the main body 1 and the cylindrical body of the socket 2
If 21 is curved with a constant radius of curvature as described above, it is necessary to determine the positional relationship in the circumferential direction between the connection opening 13 and the tubular body 21 with relatively high accuracy when fitting them. , If the positional relationship does not match, the insertion becomes difficult or impossible. Moreover, since the length of the connection port portion 13 is not so long, it may be difficult to accurately determine the positional relationship between the connection port portion 13 and the tubular body 21 which can be fitted with each other by visual observation. Therefore, as shown in FIGS. 3A and 3B,
It is effective to form a ridge 24 extending over the entire length in the axial direction on the outer circumference of the cylindrical body 21 of the socket 2 and to form a concave ridge 15 in the connection port portion 13 so as to fit with the ridge 24. . By doing so, the positional relationship in the circumferential direction between the connection port portion 13 and the tubular body 21 can be determined with high accuracy by simply fitting the convex strips 24 to the concave strips 15, and the two can be easily fitted together. Besides, convex stripes
There is also an advantage that 24 serves as a reinforcing rib for the cylindrical body 21. In addition,
The number of the ridges 24 and the number of the ridges 15 may be one, two as shown in the figure, or more.

Further, the ridge may be provided on the connection port 13 side and the ridge may be provided on the cylinder body 21 side. Furthermore, even if the end face shapes of the connection port portion 13 and the tubular body 21 are made into an asymmetrical shape such as an elliptical shape or an oval shape, the same effect can be achieved.

The present invention includes a drainage basin having two connection ports 13 and 14 as described above and a drainage basin having three or more connection ports, as well as a plurality of connection ports. It also includes a drainage basin in which one or more connection ports are curved with a constant radius of curvature.

[Advantage of the Invention] As described above, according to the present invention, if the tubular body of the socket is cut and its length is shortened, the bending angle becomes smaller than that in the case where the tubular body is used as it is without being cut. The bending angle changes if the cutting point is changed. Therefore, a universal joint function is provided at the connection portion of the drainage basin with the pipe, and the pipe can be bent and connected without using extra accessories such as the universal joint and the bent joint. The universal joint function is further improved by the structure described in the second aspect.

Further, in the present invention, the connection cost of the main body of drainage and the cylinder of the socket are only curved with the same radius of curvature, and they do not have a special shape such as a sphere. It also has the effect of lowering product costs.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view showing a usage state of a drainage basin according to an embodiment of the present invention, FIG. 2 is a cross-sectional plan view showing a usage state of a drainage basin according to another embodiment, and FIG. 3A is a modification of a socket. FIG. 3B is an end view taken along the line III-III in FIG. 3A, and FIGS. 4 and 5 are longitudinal side views showing a conventional example. A ... Drainage, 1 ... Masu body, 2 ... Socket, 13 ... Connection port, 21 ... Cylindrical body, 22 ... Pipe connection port, 31 ... Pipe, L ...
Insertion fee.

Claims (2)

[Scope of utility model registration request] 1. A main body having one or more connection ports that are curved with a constant radius of curvature, and a main body that is curved with a radius of curvature equivalent to that of the connection port and has the same diameter in each axial direction. There is a pipe connection port provided at one end of a tubular body that is fittedly connected to the connection port portion, and a socket capable of cutting the tubular body at any axial position. Features drainage. 2. The drainage according to claim 1, wherein the connection opening portion of the main body has a length capable of increasing and decreasing the insertion allowance of the socket cylindrical body with respect to the connection opening portion.