JPH0212866Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is used for the purpose of uniformly irrigating pipelines laid to irrigate fields in greenhouse horticulture without reducing water pressure all the way to the end. This relates to pipe fittings that are used.

[Conventional technology] Conventionally, in order to irrigate a large field, for example, a regulating valve was installed in the middle of a pipe connected to a water source installed at the corner of the field, and this pipe was connected to a main pipe installed at the side edge of the field. This main pipe is connected to a number of pipes laid between the furrows in the field to form a pipeline. However, such a pipeline has a problem in that the water pressure decreases at the end portion away from the water inflow portion, making it impossible to uniformly irrigate the entire field. In order to solve these problems, for example,
No. 50405 and Japanese Utility Model Publication No. 53-3463, a two-layer pipe in which a main space and a sub-space are divided into upper and lower layers is used as a block, and both ends of the sub-space are closed with plugs to reduce the water pressure in the sub-space. A pipeline is known in which a uniform outflow mechanism is configured and connected via a connecting member.

[Problems that the invention attempts to solve] However, in the case of such conventional pipelines,
The problem is that it is necessary to attach plugs to both ends of the subspace of the double-layer pipe in each block to close it off, and then to connect each block with a connecting member, which requires an extremely large amount of work to install in the field. It was hot. For this reason, the present invention eliminates the need for such trouble and constructs a pipeline that can connect two-layered pipes divided into upper and lower layers extremely easily, and can provide irrigation without reducing water pressure all the way to the end. The object of the present invention is to provide a pipe joint for connecting the two-layer pipes.

[Means for Solving the Problems] In order to achieve the above object, in the pipe joint of the present invention, the ends of the double-layer pipe are attached to both ends of the cylindrical body through which the water passage communicating with the main space of the double-layer pipe is penetrated. At the same time, a guide hole communicating with the water passage is provided in the upper end wall at the center of the cylindrical body, a fitting is attached to the guide hole, and a fitting part is provided in the upper end wall. A plug portion is provided to protrude from the joint portion and fit into the subspace of the two-layer pipe, and one of the plug portions is configured to have a water passage communicating with the guide hole passed therethrough.

[Function] Two double-layer pipes can be easily and securely connected by fitting the end of the vertically divided two-layer pipe into the fitting part of the pipe joint and fitting the plug part into the subspace. can. In this way, a pipeline can be constructed by sequentially connecting two-layer pipes via pipe joints, and at the same time, each double-layer pipe has an independent chamber by fitting plugs of pipe joints into both ends of the subspace. It is formed.

Then, by rotating the pot, the guide hole and the passageway are connected, and the water in the passageway that communicates with the main space flows out into the subspace, making it possible to equalize the water pressure in the subspace, so that the water pressure reaches the end of the pipeline. will not deteriorate.

[Example] An example of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a two-layer pipe having a required length, with an internal space divided into two upper and lower layers, a main space 3 and a sub-space 4, by a partition wall 2 extending in the axial direction, and the upper end wall of the two-layer pipe 1. 5, and a water withdrawal nozzle 6 is attached thereto.

Reference numeral 7 denotes a pipe joint that connects the two-layer pipe 1 to both left and right ends, respectively. The pipe joint 7 is connected to the main space 3 of the double-layer pipe 1.
Fitting portions 9 and 9' into which the two-layer tube 1 is fitted are formed on both left and right sides of the cylinder through which the water passage 8 communicating with the tube is passed.
A guide hole 11 communicating with the water passage 8 is provided in the upper end wall 10 approximately at the center in the longitudinal direction, and the guide hole 11 is connected to a hole 12.
Attach. A cutting slope 13 is provided at the bottom of the pot 12. The upper end wall 10 has a fitting portion 9,
Plug portions 14, 14' that are fitted into the subspace 4 of the double-layer pipe 1 are protrudingly provided on the side surface of the pipe 9', and one of the plug portions 14 is penetrated by a water passage 15 that communicates with the guide hole 11. .

The ends of the two-layer pipes 1, 1 are fitted into the left and right fitting parts 9, 9' of the pipe joint 7 formed in this way as shown in FIG. , 4 to easily and securely connect the two double-layered pipes 1, 1. Then, according to the connection procedure described above, the two-layer pipes can be sequentially connected via the pipe joints 7 to construct a pipeline of the required length, and at the same time, each double-layer pipe 1 is connected to both ends of the subspace 4. The plug portions 14, 14' of the pipe joint 7 are fitted to complete the form of an independent chamber.

Then, if the water hole 15 is opened on the cutting slope 13 by rotating the pot 12 while allowing water to flow through the main space 3 and the water passageway 8 in the direction shown by the arrow in FIG. Pressure fluid is introduced into the subspace 4 through the water passage hole 15, and the pressure fluid is sprayed from the water withdrawal nozzle 6 to irrigate the field.

[Effects of the invention] As described above, the pipe joint of the present invention is formed by integrally providing a stopper that is fitted into the subspace of the two-layered pipe, which is divided into two upper and lower layers, to be connected on both the left and right sides. At the same time as the two-layer pipe is connected, plugs can be fitted into both ends of the subspace, thereby creating a water flow mechanism that equalizes the water pressure in the subspace in the form of independent chambers. Furthermore, by passing a water hole communicating with the main space through one of the plug parts and opening and closing this water hole with a kettle, it is possible to freely and easily perform control such as watering only necessary parts of the field. There are many advantages to being able to do this.

[Brief explanation of the drawing]

The figures relate to one embodiment of the present invention, in which Fig. 1 is a cross-sectional view of the pipe joint, Fig. 2 is a side view, Fig. 3 is a cross-sectional view of the pipe joint in its open state, and Fig. 4 is a sectional view of the pipe joint in use. FIG. 3 is a sectional view of the device in use with the pot in a closed state. 1...Double layer pipe, 2...Partition wall, 3...Main space, 4
... Subspace, 6 ... Water withdrawal nozzle, 7 ... Pipe joint,
8... Water passageway, 9,9'... Fitting part, 10... Upper end wall, 11... Guide hole, 12... Kotoku, 14,1
4'...Plug portion, 15...Water hole.

Claims (1)

[Scope of utility model registration request] A pipe joint in which a main space and a sub-space are independently divided into two upper and lower layers by a partition wall extending in the axial direction, and a two-layer pipe with a water withdrawal nozzle attached is connected to the sub-space, which communicates with the main space. Fitting portions into which the two-layer pipes are fitted are provided at both ends of the cylindrical body passing through the water passage, and a guide hole communicating with the water passage is provided in the upper end wall at the center of the cylindrical body. A water hole is attached to the top end wall, and a plug part is provided on the upper end wall to protrude from each fitting part and fit into the subspace of the two-layer pipe, and one of the plug parts has a water passage hole communicating with the guide hole. A pipe joint characterized by having a through-hole.