JP7426914B2 - Drainage joint device and drain piping full water test method - Google Patents

Description

The present invention relates to a joint device for a drainage channel and a method for testing a drain pipe full of water, which can easily perform a full water test.

Conventionally, some drain piping connected to an air conditioner includes a drain up piping (for example, see Patent Document 1). As shown in FIG. 12, this drain pipe 102 is composed of a gradient pipe section 103 which is its main structure, and an upper detour section 104 which forms a drain up pipe between the gradient pipe section 103 and the air conditioner 101. It was configured. Here, the upper detour section 104 has an ascending section 105 extending upward from the drain port 101a of the air conditioner 101, and a descending section 106 extending from the upper end of the ascending section 105 toward the inlet section 103a of the gradient pipe section 103. However, the air conditioner 101 was provided with a pump for draining. A joint 107 was provided between the ascending section 105 and the descending section 106. This joint 107 had an inspection port 107a, and a lid member 108 was attached to the inspection port 107a so as to be openable and closable. Therefore, after completing the construction of the drain pipe 102, a water leakage test could be performed by pouring water through the inspection port 107a of the joint 107. The details of this water leakage test are not disclosed in Patent Document 1, but in general, a transparent pipe is adopted as the descending section 106, and water is poured from the inspection opening 107a to the middle of the descending section 106 (transparent pipe). By confirming that the water level was maintained for a certain period of time, it was determined that there were no poor connections downstream.

JP2012-233675

By the way, in the drain pipe 102, if you are not careful when pouring water from the inspection port 107a into the descending section 106 during a water leakage test (full water test), the water may pass through the ascending section 105 and into the air conditioner 101. There was a risk that it would flow backwards. For this reason, it was necessary to add water slowly and carefully, which was time consuming and troublesome.

This invention was made to solve the above-mentioned conventional drawbacks, and its purpose is to provide a joint device for a drainage channel that can easily perform a full-water test, and a full-water test for drain piping. The purpose is to provide a method.

In order to achieve the above object, a joint device for a drain channel and a method for testing a drain pipe full of water according to the present invention have the following configuration. That is,
The joint device for a drainage channel according to the invention according to claim 1 is arranged at a top portion located in the middle of the drainage channel, and an upstream drain pipe and a downstream drain pipe forming the drainage channel are connected, It includes a joint that becomes a part of the drainage channel, a lid member, and a closing member. Here, the joint includes an internal space, an opening that exposes the internal space to the outside, a drainage inflow section that communicates with the internal space, and an upstream side of the drainage inflow section to which the upstream drain pipe is connected. It includes a side connection port, a drainage outlet communicating with the internal space, and a downstream connection port on the drainage outlet side to which the downstream drain pipe is connected. The lid member is removably attached to the opening so as to close the opening. The closing member can be attached to a drainage inflow forming part forming the drainage inflow to close the drainage inflow, and can be removed from the drainage inflow forming part. Therefore, during a full water test, by attaching the blocking member to the drainage inflow section forming section, the water introduced into the internal space from the opening so as to flow through the drainage outflow section to the downstream drain pipe. is prevented from flowing back into the upstream drain pipe through the waste water inlet.

According to this coupling device, the coupling is arranged at the top portion of the drainage channel. This joint has a drainage inflow section and a drainage outflow section that communicate with the internal space, an upstream drainage pipe is connected to the upstream connection port on the drainage inflow section, and a downstream connection port is connected to the downstream connection port on the drainage outflow section. The side drain pipe is connected. The joint has an opening that exposes the internal space to the outside, and a lid member is removably attached to close the opening. In addition, a closing member that closes the drainage inlet is installed and removable, and during a full water test, the closing member is attached and the drainage inlet is closed, allowing water to enter the internal space from the opening. However, the water is prevented from flowing back to the upstream drain pipe through the waste water inflow part, and the water can be reliably guided from the waste water outflow part to the downstream drain pipe. In the full-water test, if appropriate points on the downstream side are closed off and water is poured in through the opening and the water level does not drop after a certain period of time, there is a connection failure in the area filled with water. It is determined that there is no such thing.

Further, in the joint device for a drainage channel according to the invention set forth in claim 2, in the joint device according to claim 1, the hollow cylindrical portion having the side facing the internal space in the drainage inflow portion inside the It is provided so as to protrude into the internal space, and its hollow cylindrical portion becomes a part of the drainage inlet forming portion. The closing member is attached to the hollow cylindrical portion so as to fit on the outside or inside of the hollow cylindrical portion. By attaching the closing member to the hollow cylindrical portion that projects into the internal space, the closing member can be easily attached and removed through the opening.

Further, in the joint device for a drainage channel according to the invention according to claim 3, in the joint device according to claim 1 or 2, the opening is provided on the upper side of the internal space, and the drainage inflow portion is , is provided at a position below the internal space and facing the opening. By providing the drainage inflow portion at a position facing the opening, the closing member that closes the drainage inflow portion can be easily attached and removed through the opening.

Further, in the joint device for a drainage channel according to the invention according to claim 4, in the joint device according to any one of claims 1 to 3, the drainage inflow portion or the drainage inflow portion and the internal space are connected to each other. When there is no inflow of wastewater from the upstream drain pipe, the boundary portion prevents living things such as insects from entering the upstream drain pipe from the internal space through the waste water inflow part. A valve body is provided that closes the drainage inlet and opens the drainage inflow when drainage flows from the upstream drain pipe. The closing member can be attached to the drainage inlet forming portion without removing the valve body.

Further, in the joint device for a drainage channel according to the invention described in claim 5, in the joint device according to any one of claims 1 to 4, the lid member connects the closing member to the drainage inflow portion. It can be attached to the opening while being attached to the section.

Further, in the drain piping full water test method according to the invention set forth in claim 6, the joint in the joint device according to any one of claims 1 to 5 is installed with a downward slope with respect to the drain outlet of the air conditioner. A full water test method for a drain pipe placed in the middle of a drainage channel between a main drainage pipe and a main drainage pipe, the drain pipe being a part of the drainage channel. The upstream connection port of the joint located above the drain outlet is connected by the upstream drain pipe, and the downstream connection port of the joint and the main drainage pipe located below the joint. and are connected by the downstream drain pipe. Here, it is assumed that the main drainage pipe is blocked downstream of the drainage channel connected to the main drainage pipe. Therefore, in the joint, with the closing member attached to the drainage inlet forming part, water is poured into the downstream drain pipe and the main drainage pipe from the opening through the internal space, and then the poured water is Check whether there is any change in the water level.

According to this full-water test method, when water is introduced from the opening in a joint of a drainage channel through the internal space to the downstream drainage pipe and then to the main drainage pipe, the water rises up the main drainage pipe and then to the downstream drainage pipe of the drainage channel. Ascend the tube. Therefore, if the water level does not drop in the drainage channel after a certain period of time has elapsed, it is determined that there is no poor connection in the area filled with water.

Further, in the drain piping full water test method according to the invention set forth in claim 7, the joint in the joint device according to any one of claims 1 to 5 is connected to each of the drain outlets of a plurality of air conditioners, A full-water test method for drain piping that is placed in the middle of each drainage channel between a main drainage pipe installed with a downward slope to become a part of the drainage channel, and in each of said drainage channels. , the drain outlet and the upstream connection port of the joint located above the drain outlet are connected by the upstream drain pipe, and the downstream connection port of the joint is connected to the upstream connection port of the joint located above the drain outlet The main drainage pipe located below is connected to the main drainage pipe by the downstream drainage pipe. Here, it is assumed that the main drainage pipe is blocked downstream of the drainage channel connected to the most downstream side of the main drainage pipe. Among the plurality of drainage channels, the joints of the other drainage channels except for one drainage channel are in a state in which the closing member is attached to the drainage inlet forming part and the lid member is attached to the opening thereof. shall be. Therefore, in the joint of the drainage channel 1, with the closing member attached to the drainage inlet forming part, water is poured into the downstream drain pipe and the main drainage pipe from the opening through the internal space, and then Then, check to see if the water level of the water has changed.

According to this full-water test method, when water is introduced from the opening at the joint of one of the multiple drainage channels through the internal space into the downstream drain pipe and further into the main drainage pipe, the water rises up the main drainage pipe. , further ascend the downstream drainage pipe of the drainage channel 1. Then, on the downstream side of the other drainage channel, the air is sealed by the closing member, the lid member, and the rising water, and when the pressure of the water and the air is balanced, the water stops rising. Therefore, if the water level does not fall in the drainage channel 1 after a certain period of time has passed, there may be a connection failure or a poor airtightness of the lid or closing member in the water-filled area or air-tight area. It is determined that there is no such thing.

According to the joint device for a drainage channel and the full water test method for drain piping according to the present invention, the blocking member prevents backflow to the upstream drain pipe and ensures that the water is transferred to the downstream drain pipe. By guiding, you can easily perform a full water test.

It is a front view of the drainage channel of one embodiment of this invention. Similarly, it is a sectional view showing a normal drainage channel with the blocking member removed. Similarly, it is a sectional view showing a drainage channel during a full water test, with the lid member removed and the closing member attached. Similarly, it is a sectional view of the joint device. Similarly, it is a perspective view in which an assembly portion is provided in the main body portion of the joint. Similarly, it is a top view which provided the assembly part in the main body part in a joint. Similarly, it is a perspective view of the connection body in a joint. Similarly, it is a perspective view of an attachment body in a joint, and (a) is a perspective view seen from the front side, and (b) is a perspective view seen from the back side. Similarly, it is a perspective view of the valve body in a joint. Similarly, it is a perspective view of a lid member. FIG. 2 is a partially cutaway front view showing an example in which the joint device of the present invention is applied to each of a plurality of drainage channels. FIG. 3 is a front view showing a conventional drain pipe.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a joint device for a drainage channel and a method for carrying out a full water test method for drain piping according to the present invention will be described based on the drawings.

1 to 10 show one embodiment of the present invention. Reference numeral 1 in the figure indicates an air conditioner such as an air conditioner. 1a indicates a drain outlet of the air conditioner 1. Reference numeral 2 indicates a hanging bolt as a hanging tool for suspending the air conditioner 1. 3 indicates a structure or other support. 4 indicates the main drainage pipe. 5 indicates a drainage channel. 6 indicates an upstream drain pipe in the drain channel 5. 7 indicates a downstream drain pipe in the drain channel 5. 8 shows a coupling device for a drain.

Here, the joint device 8 includes a joint 9, a lid member 10, and a closing member 11. The joint 9 is arranged at the top part located in the middle of the drainage channel 5, and is connected to the upstream drain pipe 6 and the downstream drain pipe 7 that form the drainage channel 5, and becomes a part of the drainage channel 5. . This joint 9 includes an internal space 9a, an opening 9b that exposes the internal space 9a to the outside, a drainage inflow section 9c communicating with the internal space 9a, and a drainage inflow section 9c side to which the upstream drain pipe 6 is connected. , an upstream connection port 9d, a drainage outlet 9e communicating with the internal space 9a, and a downstream connection port 9f on the drainage outlet 9e side to which the downstream drain pipe 7 is connected. In the illustrated embodiment, the upstream connection port 9d has at least a part of the wastewater inflow part 9c inside, and the downstream connection port 9f has at least a part of the wastewater outflow part 9e inside. The upstream drain pipe 6 is connected to the upstream connection port 9d on the side of the waste water inflow part 9c, which has at least a part of the waste water inflow part 9c inside, and the downstream drain pipe 7 is connected to the waste water outflow part. It is connected to the downstream connection port 9f on the side of the drainage outlet 9e, which has at least a part of the drain 9e inside.

The lid member 10 closes the opening 9b of the joint 9, and is removably attached to the opening 9b so as to close the opening 9b.

The closing member 11 can be attached to the drainage inflow part forming part 9h forming the drainage inflow part 9c so as to close the drainage inflow part 9c of the joint 9, and can be removed from the drainage inflow part forming part 9h. It has become. Therefore, as shown in FIG. 3, by attaching the closing member 11 to the drainage inlet forming part 9h (that is, by closing the drainage inflow part 9c with the closing member 11) during the full water test, the drainage outflow part Water introduced into the internal space 9a from the opening 9b of the joint 9 so as to flow through the drain pipe 9e to the downstream drain pipe 7 is prevented from flowing back to the upstream drain pipe 6 through the drain inlet 9c. Ru.

Specifically, the joint 9 is provided with a hollow cylindrical portion 9i which has a side facing the internal space 9a in the drainage inflow portion 9c on the inside so as to protrude into the internal space 9a, and the hollow cylindrical portion 9i has a It is a part of the drainage inlet forming part 9h. Therefore, the closing member 11 is attached to the hollow cylindrical portion 9i (specifically, the distal end portion of the hollow cylindrical portion 9i) so as to fit on the outside or inside of the hollow cylindrical portion 9i.

Further, the opening 9b of the joint 9 is provided above the internal space 9a, and the drainage inflow portion 9c is provided below the internal space 9a at a position facing the opening 9b. The hollow cylindrical portion 9i projects upward from a bottom plate 9j that forms the bottom surface of the internal space 9a.

Further, the lid member 10 can be attached to the opening 9b with the closing member 11 attached to the drainage inlet forming portion 9h (more specifically, to the hollow cylinder portion 9i).

In addition, when there is no inflow of wastewater from the upstream drain pipe 6 into the wastewater inflow part 9c or the boundary between the wastewater inflow part 9c and the internal space 9a, living things such as insects may enter the wastewater inflow part from the internal space 9a. A valve body that closes the drainage inflow portion 9c to prevent drainage from entering the upstream drainage pipe 6 through the drainage pipe 9c, and opens the drainage inflow portion 9c when there is an inflow of drainage from the upstream drainage pipe 6. 12 are provided. At this time, the closing member 11 can be attached to the drainage inlet forming part 9h (specifically, the hollow cylinder part 9i) without removing the valve body 12.

Specifically, the drainage channel 5 is provided so as to connect the drain outlet 1a of the air conditioner 1 and the main drainage pipe 4 installed with a downward slope (drainage slope). Therefore, the air conditioner 1 is equipped with a pump that pumps the drainage water, and the drainage water is once pushed up to the top portion of the drainage channel 5 by the pump, and then descends.

The upstream drain pipe 6 is composed of a pipe main body 6a and a cylindrical covering member 6b that covers the pipe main body 6a.Similarly, the downstream drain pipe 7 includes a pipe main body 7a and a cylindrical covering material 6b that covers the pipe main body 7a. It is composed of a cylindrical covering material 7b. Here, the tube bodies 6a, 7a are made of synthetic resin, for example, and the covering materials 6b, 7b are made of a member having heat insulating properties. The upstream drain pipe 6 and the drain outlet 1a are connected via the first joint 13. Similarly, the downstream drain pipe 7 and the main drain pipe 4 are connected via the second joint 14.

The joint 9 is configured such that the angle between the upstream connection port 9d and the downstream connection port 9f is a right angle or a smaller angle (in the illustrated embodiment, it is a right angle). It is formed. Therefore, the upstream connection port 9d and the downstream connection port 9f are such that the upstream connection port 9d faces vertically downward, and the downstream connection port 9f faces horizontally or below (in the illustrated embodiment, horizontally ).

In addition to the joint body 9x, the joint 9 includes the internal space 9a, the opening 9b, the drainage inflow section 9c, the upstream connection port 9d, the drainage outflow section 9e, and the downstream connection port 9f. A fixing part 9y that can be fixed to the support body 3 is provided.

The joint body 9x has a separate cylindrical connecting body 9k having a downstream connecting port 9f, and the connecting body 9k is connected to the main body portion 9m excluding the connecting body 9k via a connecting nut 9n. Ru. Specifically, the main body part 9m has a main body cylinder part 9p and an extension cylinder part 9q extending laterally from the main body cylinder part 9p, and a male screw part 9r is provided on the outer peripheral surface of the extension cylinder part 9q. is formed. A connecting nut 9n is attached around the outer periphery of the connecting body 9k so as to be freely rotatable, and the connecting body 9k is connected to the main body portion 9m by screwing the male screw portion 9r and the connecting nut 9n. More specifically, a U-shaped retaining ring 9s is attached to the outer periphery of the connecting body 9k. The connecting nut 9n is a cap nut for use around water, and is prevented from coming off from the outer circumferential surface of the connecting body 9k by the retaining ring 9s, and the male threaded portion 9r of the extending cylindrical portion 9q. be tightened. At this time, the proximal end portion of the connecting body 9k is inserted into the extended cylindrical portion 9q, and the ring-shaped water stop member 9t fitted on the outer periphery of the inserted proximal end portion closes the extended cylindrical portion 9q. Close to the inner circumferential surface. The inside of the extending tube portion 9q and the inside of the connecting body 9k serve as the drainage outlet portion 9e, and the tip portion of the connecting body 9k serves as the downstream connection port 9f.

Further, the upstream side connection port 9d is formed in the joint body 9x (specifically, the body cylindrical portion 9p) so as to protrude downward from the bottom plate 9j. The upstream connection port 9d is composed of an inner cylinder part 9u, an intermediate cylinder part 9v, and an outer cylinder part 9w, which are arranged concentrically. The inner cylindrical portion 9u is a part of the drainage inlet forming portion 9h. Therefore, the pipe body 6a of the upstream drain pipe 6 is inserted between the inner cylindrical part 9u and the intermediate cylindrical part 9v, and the covering material 6b of the upstream drain pipe 6 is inserted between the intermediate cylindrical part 9v and the outer cylindrical part 9w. It is inserted into the upstream connection port 9d and fixed to the upstream connection port 9d by, for example, adhesive. Similarly, the downstream connection port 9f is composed of an inner cylindrical portion 90a, an intermediate cylindrical portion 90b, and an outer cylindrical portion 90c, which are arranged concentrically. Therefore, the pipe main body 7a of the downstream drain pipe 7 is inserted between the inner cylinder part 90a and the intermediate cylinder part 90b, and the covering material 7b of the downstream drain pipe 7 is inserted between the intermediate cylinder part 90b and the outer cylinder part 90c. It is inserted between the connectors and fixed to the downstream connection port 9f by, for example, adhesive.

Further, the hollow cylindrical portion 9i provided in the joint body 9x (specifically, the main body cylindrical portion 9p) is provided with a plurality of ribs 90d, 90d radially so as to connect its tip and center portion, and these ribs A through hole 90e is bored in the center where 90d and 90d gather. Then, the drainage water passes between these ribs 90d, 90d and enters the internal space 9a. Then, the valve body 12 is attached to the through hole 90e. In detail, the valve body 12 is made of a soft material and can be flexibly deformed, and includes a disk-shaped valve body 12a and a mounting protrusion 12b protruding from the center portion of the valve body 12a. Then, the valve body 12a is placed on the tip of the hollow cylindrical portion 9i, and the mounting protrusion 12b is inserted into the through hole 90e and locked.

The fixing part 9y has a mounting part 90f that is attached to the support body 3 and has a mounting body 90g that is separate from the joint body 9x, and a set that is integral with the joint body 9x and can be assembled to the mounting body 90g. A mounting portion 90h is provided. In the illustrated embodiment, the fixing portion 9y is provided on the side of the joint 9 opposite to the downstream connection port 9f. The fixing portion 9y can be fixed to a hanging bolt (in the illustrated embodiment, a hanging bolt 2 for suspending the air conditioning device 1) serving as a support 3 disposed near the air conditioner 1, and In this state, the upstream drain pipe 6 is arranged so as to extend downward from the joint 9.

In addition, in the mounting body 90g, the mounting portion 90f includes a receiving portion 90i that receives the support 3 and a holding portion 90j that extends from the front surface of the receiving portion 90i and is curved so as to hold the support 3. configured. In addition to the mounting portion 90f, the mounting body 90g has an assembled portion 90k that protrudes from the rear surface of the receiving portion 90i. On the other hand, the assembly portion 90h has a leg portion 90m that projects laterally from the joint body 9x (specifically, the main body cylindrical portion 9p), and an arm portion 90n that extends up and down from the tip of the leg portion 90m. A mounting hole 90p is formed in the arm portion 90n. Therefore, the assembly portion 90h is assembled to the attachment body 90g by inserting and locking the assembly portion 90k into the attachment hole 90p.

The lid member 10 is attached so as to fit into an opening 9b provided in the joint main body 9x (specifically, the main body cylindrical portion 9p), and is positioned opposite to the valve body 12. The lid member 10 is formed into a cylindrical shape with a bottom, and a tabular knob 10a is provided inside the lid member 10. A ring-shaped water stop member 10b is fitted on the outer circumferential portion of the lid member 10, and the water stop member 10b is brought into close contact with the inner circumferential surface of the opening 9b.

The closing member 11 is made of, for example, rubber or soft synthetic resin, and is attached and detached through the opening 9b of the joint 9. This closing member 11 includes a disk-shaped closing member main body 11a and a cylindrical fitting portion 11b that protrudes upright from the entire periphery of the closing member main body 11a. Therefore, the closing member 11 is attached to the hollow cylindrical portion 9i by fitting the fitting portion 11b to the outside of the hollow cylindrical portion 9i of the joint 9.

The drain piping full water test method is such that the joint 9 in the joint device 8 is installed in the middle of the drainage channel 5 between the drain outlet 1a of the air conditioner 1 and the main drainage pipe 4 installed with a downward slope. (see Figure 2) in a drain pipe arranged so as to be a part of the drain pipe (see Fig. 2). The upstream connection port 9d of the joint 9 is connected by the upstream drain pipe 6, and the downstream connection port 9f of the joint 9 and the main drainage pipe 4 located below the joint 9 are connected by the downstream drain pipe 7. Ru. Here, it is assumed that the main drainage pipe 4 is blocked downstream of the drainage channel 5 connected to the main drainage pipe 4. Therefore, as shown in FIG. 3, in the joint 9, with the closing member 11 attached to the drainage inlet forming part 9h, water is poured into the downstream drain pipe 7 and the main drainage pipe 4 from the opening 9b through the internal space 9a. After that, check to see if the water level of the water has changed.

Next, the effects of the drain channel coupling device 8 having the above configuration and the drain piping full water test method will be explained. In the coupling device 8 , the coupling 9 is arranged at the top portion of the drain 5 . This joint 9 includes a wastewater inflow part 9c and a wastewater outflow part 9e, which communicate with the internal space 9a.The upstream drain pipe 6 is connected to the upstream connection port 9d on the side of the wastewater inflow part 9c, and the wastewater outflow part 9e A downstream drain pipe 7 is connected to the downstream side connection port 9f. The joint 9 has an opening 9b that exposes the internal space 9a to the outside, and a lid member 10 is removably attached to close the opening 9b. Further, a closing member 11 that closes the drainage inflow portion 9c is provided so as to be attachable and removable, and during a full water test, the closing member 11 is attached and the drainage inflow portion 9c is closed, so that the internal space is opened from the opening 9b. The water put into the drain 9a is prevented from flowing back to the upstream drain pipe 6 through the drain inlet 9c, and the water can be reliably guided from the drain outlet 9e to the downstream drain pipe 7. Yes (see Figure 3). In the full water test, after blocking the appropriate location on the downstream side, water is poured from the opening 9b and after a certain period of time, if the water level of the poured water does not fall 5x, the area filled with water is connected. It is determined that there is no defect. In the illustrated embodiment, a main drainage pipe 4 is provided, and the main drainage pipe 4 is closed downstream of the drainage channel 5 connected to the main drainage pipe 4. Then, at the joint 9 of the drainage channel 5, when water is introduced from the opening 9b through the internal space 9a into the downstream drain pipe 7 and further into the main drainage pipe 4, the water rises up the main drainage pipe 4 and further into the drainage channel 5. Go up the downstream drain pipe 7. Therefore, if the water level 5x in the drainage channel 5 does not fall after a certain period of time has elapsed, it is determined that there is no poor connection in the area filled with water.

That is, during a full water test, the blocking member 11 prevents backflow to the upstream drain pipe 6 and reliably guides the filled water to the downstream drain pipe 7, making the full water test easy. be able to. Here, the water level 5x of the poured water can be confirmed from the opening 9b by being located at an appropriate height in the internal space 9a, but by making the joint 9 transparent or semi-transparent, You can also check the water level 5x from the side. Furthermore, even if the water level 5x is located within the downstream drain pipe 7, the water level 5x can be confirmed by making the downstream drain pipe 7 transparent or semi-transparent.

Further, by attaching the closing member 11 to the hollow cylinder portion 9i that projects into the internal space 9a of the joint 9, the closing member 11 can be easily attached and detached through the opening 9b. The drainage inflow portion 9c is provided at a position facing the opening 9b, and this also allows the closing member 11 that closes the drainage inflow portion 9c to be easily attached and removed through the opening 9b.

Note that the present invention is not limited to the embodiments described above, and various other changes are possible. For example, the drainage channel 5 does not need to connect the drain outlet 1a of the air conditioner 1 and the main drainage pipe 4, and may be of any type as long as it has a top portion.

Moreover, the closing member 11 does not need to be made of rubber or soft synthetic resin, but is made of hard synthetic resin or the like, and between the closing member 11 and the hollow cylinder part 9i (drainage inflow part forming part 9h), A water stop member may be provided.

Further, in the embodiment described above, the joint device 8 used for the drainage channel 5 has been explained by focusing on one drainage channel 5, but as shown in FIG. A full water test may be performed by applying the joint device 8 to each of them. That is, the joint 9 in the joint device 8 connects each drainage channel 5 between each of the drain outlets 1a of the plurality of air conditioners 1, 1 and the main drainage pipe 4 installed with a downward slope (drainage slope). A full water test method for drain pipes arranged in the middle to become part of the drainage channel 5, in which each drain channel 5 includes a drain outlet 1a and a drain outlet 1a disposed above the drain outlet 1a. The upstream connection port 9d of the joint 9 is connected by the upstream drain pipe 6, and the downstream connection port 9f of the joint 9 and the main drain pipe 4 located below the joint 9 are connected by the downstream drain pipe 7. Concatenated. Here, it is assumed that the main drainage pipe 4 is blocked downstream of the drainage channel 5 connected to the most downstream side of the main drainage pipe 4. Among the plurality of drainage channels 5, 5, one drainage channel 5 (in the illustrated embodiment, the drainage channel connected to the most upstream side of the main drainage pipe 4 is selected as the one drainage channel 5). However, other drainage channels may be selected.) The joints 9 of the other drainage channels 5, 5 have the closure member in the drainage inlet forming portion 9h (more specifically, the hollow cylindrical portion 9i). 11 is attached, and the lid member 10 is attached to the opening 9b. Therefore, in the joint 9 of the drainage channel 5 mentioned above, with the closing member 11 attached to the drainage inlet forming part 9h (specifically, the hollow cylinder part 9i), the downstream drainage pipe 7 is passed through the internal space 9a from the opening 9b. Then, water is poured into the drain main pipe 4, and thereafter, it is confirmed whether or not there is a change in the water level 5x of the poured water.

According to this full water test method, when water is introduced from the opening 9b through the internal space 9a into the downstream drain pipe 7 and further into the main drain pipe 4 at the joint 9 of one of the plurality of drain channels 5, 5, , the water ascends through the main drainage pipe 4 and further ascends through the downstream drainage pipe 7 of the first drainage channel 5 . Then, on the downstream side of the other drainage channels 5, 5, the air is sealed by the closing member 11 and the lid member 10 and the rising water, and the water stops rising when the pressure with the air is balanced. (The water surface at this time is indicated by the symbol 5y). Therefore, if the water level 5x does not fall in the drainage channel 5 after a certain period of time has passed, there may be a connection failure in the water-filled area or the air-tight area, or the cover member 10 or the closing member 11 may be damaged. It is determined that there is no airtightness. Moreover, in this full water test, a plurality of drainage channels 5, 5 can be tested at the same time, and therefore, this full water test can be performed efficiently.

1 Air conditioning equipment 1a Drain outlet 4 Main drain pipe 5 Drain channel 5x Water level 6 Upstream drain pipe 7 Downstream drain pipe 8 Coupling device 9 Coupling 9a Internal space 9b Opening 9c Drain inlet 9d Upstream connection port 9e Drain outlet 9f Downstream Side connection port 9h Drain inlet forming part 9i Hollow cylinder part 10 Lid member 11 Closure member 12 Valve body

Claims (7)

A joint that is disposed at a top portion located in the middle of a drainage channel, connects an upstream drainage pipe and a downstream drainage pipe that form the drainage channel, and becomes a part of the drainage channel; a lid member; and a closure member. and
The joint includes an internal space, an opening that exposes the internal space to the outside, a drainage inlet communicating with the internal space, and an upstream connection port on the drainage inflow to which the upstream drain pipe is connected. and a drainage outflow part communicating with the internal space, and a downstream connection port on the side of the drainage outflow part to which the downstream drainage pipe is connected,
The lid member is removably attached to the opening so as to close the opening,
The closing member is attachable to a drainage inflow forming part forming the drainage inflow part so as to close the drainage inflow part, and is removable from the drainage inflow forming part,
At the time of the full water test, the closing member is attached to the drainage inflow part forming part, so that water is introduced into the internal space from the opening so as to flow through the drainage outflow part to the downstream drain pipe. A coupling device for a drainage channel, wherein backflow through the drainage inlet to the upstream drainage pipe is prevented. A hollow cylindrical part of the drainage inflow part having a side facing the internal space on the inside is provided so as to protrude into the internal space, and the hollow cylindrical part becomes a part of the drainage inflow part forming part,
The joint device for a drainage channel according to claim 1, wherein the closing member is attached to the hollow cylindrical portion so as to fit on the outside or inside of the hollow cylindrical portion. The drain channel according to claim 1 or 2, wherein the opening is provided above the internal space, and the drainage inlet is provided below the internal space at a position facing the opening. fitting device. When there is no inflow of wastewater from the upstream drain pipe into the wastewater inflow part or the boundary between the wastewater inflow part and the internal space, living things such as insects may pass from the internal space through the wastewater inflow part. A valve body is provided that closes the wastewater inlet to prevent wastewater from entering the upstream drain pipe, and opens the wastewater inlet when there is an inflow of wastewater from the upstream drain pipe. ,
The joint device for a drainage channel according to any one of claims 1 to 3, wherein the closing member can be attached to the drainage inlet forming portion without removing the valve body. The joint device for a drainage channel according to any one of claims 1 to 4, wherein the lid member can be attached to the opening with the closing member attached to the drainage inlet forming part. The joint in the joint device according to any one of claims 1 to 5 is provided in a part of the drainage channel between the drain outlet of the air conditioner and the main drainage pipe installed with a downward slope. A full water test method for drain piping arranged in such a manner that
In the drainage channel, the drain outlet and the upstream connection port of the joint located above the drain outlet are connected by the upstream drain pipe, and the downstream connection port of the joint and , the main drainage pipe located below the joint is connected by the downstream drainage pipe,
The main drainage pipe is in a blocked state downstream of the drainage channel connected to the main drainage pipe,
In the joint, with the closing member attached to the drainage inlet forming part, water is poured into the downstream drain pipe and the main drainage pipe from the opening through the internal space, and then the water level of the poured water is adjusted. A drain piping full-water test method to check for changes in water. The joint in the joint device according to any one of claims 1 to 5 is provided in the middle of each drainage channel between each of the drain outlets of a plurality of air conditioners and a main drainage pipe installed with a downward slope. A full water test method for a drain pipe arranged as a part of the drainage channel,
In each of the drainage channels, the drain outlet and the upstream connection port of the joint located above the drain outlet are connected by the upstream drain pipe, and the downstream connection port of the joint is connected to each other by the upstream drain pipe. and the main drainage pipe located below the joint are connected by the downstream drainage pipe,
The main drainage pipe is in a blocked state downstream of the drainage channel connected to the most downstream side of the main drainage pipe,
Among the plurality of drainage channels, the joints of the other drainage channels except for one drainage channel have the closing member attached to the drainage inlet forming portion thereof, and the lid member attached to the opening thereof,
In the joint of the first drainage channel, with the closing member attached to the drainage inlet forming part, water is poured into the downstream drain pipe and the main drainage pipe from the opening through the internal space, and then, A method of testing the drain piping to see if there is any change in the water level.

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