A type of plastic oxygen-permeable fitting

Abstract

The present utility model discloses a plastic oxygen-passing fitting, comprising a main pipe and branch pipes. Spigot-and-socket joints for socket-connecting plastic pipes are provided at two ends of the main pipe. The branch pipes are located between the spigot-and-socket joints, fixedly connected to the exterior of the main pipe. An annular limiting surface is provided at an end of each spigot-and-socket joint close to the branch pipe, and a glue storage groove is provided along the inner periphery of the spigot-and-socket joint. The distance between the glue storage groove and the annular limiting surface is L1, where 5mm<L1<15mm. The present utility model provides a plastic oxygen-passing fitting that prevents branch pipes from being clogged by glue.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and in particular to a plastic oxygen-passing fitting. Background Technology

[0002] In aquaculture (such as fish, shrimp, and shellfish farming), dissolved oxygen (DO) is a key factor affecting the growth and survival rate of farmed organisms. Nanotube aeration is currently the main oxygenation method. Plastic aeration fittings are similar to tees, including a main pipe connected to plastic pipes at both ends and a branch pipe connected to a rubber nanotube. In existing technology, the plastic pipe is fixed in the main pipe with glue, which often leads to glue blockage of the branch pipe due to excessive glue, affecting air output. Utility Model Content

[0003] To address the drawback of existing plastic oxygen supply fittings where the branch pipe is easily clogged by glue, this utility model proposes a plastic oxygen supply fitting that prevents the branch pipe from being clogged by glue.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A plastic oxygen-permeable fitting includes a main pipe and a branch pipe. The main pipe has sockets at both ends for connecting plastic pipes. The branch pipe is located between the sockets and fixedly connected to the main pipe. An annular limiting surface is provided at the end of the socket closest to the branch pipe. An adhesive storage groove is provided along the inner circumference of the socket, and the distance between the adhesive storage groove and the annular limiting surface is L1.5 mm. <L1<15mm。

[0005] Furthermore, the glue storage tank has a chamfer on the side near the annular limiting surface.

[0006] Furthermore, the main pipe is integrally formed with reinforcing ribs along its outer circumference, and the reinforcing ribs are located on the outside of the glue storage tank.

[0007] Furthermore, the width of the reinforcing rib is W1, and the width of the adhesive storage groove is W2, 1.2 <W1 / W2<2。

[0008] Furthermore, the inner diameter of the branch pipe is r, and the distance between the annular limiting surfaces at both ends of the main pipe is L2, 1.1 <L2 / r<1.4。

[0009] Furthermore, the branch pipe is horizontally connected to the upper part of the main pipe.

[0010] Furthermore, anti-pull-out reinforcement bars are provided around the outer periphery of the branch pipe.

[0011] Through the above improvements, the oxygen supply accessory of this utility model has the following beneficial effects: 1. It can reduce glue overflow and prevent glue from clogging branch pipes; 2. It can reduce the entry of foreign objects into the glue storage tank and improve the sealing performance between the socket and the plastic pipe; 3. The chamfered edges facilitate the insertion of plastic pipes into the socket; 4. The strength of the main pipe is increased by reinforcing ribs; 5. By using anti-pull-out ribs, the connection between the branch pipe and the rubber nano-aeration pipe is improved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the oxygen supply fittings for an embodiment.

[0013] Figure 2 This is an axial view of the oxygen supply fitting in an embodiment.

[0014] Figure 3 for Figure 2 BB cross-sectional view.

[0015] Figure 4 This is a schematic diagram of the oxygen supply fitting connecting to the plastic pipe in an embodiment. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] like Figures 1 to 4 This utility model proposes a plastic oxygenation fitting for connecting a plastic pipe 200 and a rubber nano-aeration pipe in an oxygenation system. The oxygenation fitting is made of plastic and includes a main pipe 3 and a branch pipe 4. The main pipe 3 has sockets at both ends adapted to the plastic pipe for socket connection. The branch pipe 4 is located between the sockets at both ends of the main pipe 3 and is fixedly connected to the outside of the main pipe 3. An annular limiting surface 5 is provided at one end of the socket near the branch pipe 4, and the branch pipe 4 is located between two annular limiting surfaces 5. A glue storage groove 6 is provided along the inner circumference of the socket, and the distance between the glue storage groove 6 and the annular limiting surface 5 is L1.5 mm. <L1<15mm。

[0018] The working principle of this oxygen-permeable fitting is as follows: Adhesive is applied to the outer circumference of the end of the plastic pipe, which is then inserted into the end of the main pipe 3 through the socket. When there is too much adhesive, the excess adhesive will enter the adhesive storage tank 6 when the end of the plastic pipe moves to it, thus reducing the amount of adhesive at the end of the plastic pipe. Figure 4 Continue pushing the plastic pipe inward. When the end face of the plastic pipe abuts against the annular limiting surface 5, the plastic pipe is fully inserted. At this point, there is virtually no glue overflowing from the end face of the plastic pipe, preventing the overflowing glue from clogging the branch pipe 4. At the same time, since there is a distance between the glue storage tank 6 and the annular limiting surface 5, it can prevent foreign objects from entering the glue storage tank 6 and affecting the sealing between the plastic pipe and the socket. After the plastic pipe is connected to both ends of the main pipe 3, the rubber nano-aeration pipe is connected to the branch pipe 4, completing the connection of the oxygenation fitting. When the oxygenation system is running, air enters the oxygenation fitting through the plastic pipe, and air enters the water body through the branch pipe 4 and the rubber nano-aeration pipe to increase the oxygen content in the water.

[0019] In one embodiment, as shown in Figure 3 , a chamfer 7 is provided on the side of the glue storage groove 6 close to the annular limiting surface 5. Through the above arrangement, the plastic pipe can be prevented from being caught by the glue storage groove 6 when inserted into the socket.

[0020] In one embodiment, as shown in Figure 3 the main pipe 3 is integrally formed with reinforcing ribs 8 along the outer periphery, and the reinforcing ribs 8 are arranged on the outer side of the glue storage groove 6 to improve the strength of the main pipe 3 at the glue storage groove 6.

[0021] In one embodiment, the width of the reinforcing rib 8 is W1, the width of the glue storage groove 6 is W2, and 1.2<W1 / W2<2.

[0022] In one embodiment, the inner diameter of the branch pipe 4 is r, the distance between the annular limiting surfaces 5 at both ends of the main pipe 3 is L2, and 1.1<L2 / r<1.4. When L2 / r>1.1, a distance exists between the annular limiting surface 5 and the branch pipe 4, which prevents the glue from overflowing to the opening of the branch pipe 4. In addition, when L2 / r<1.4, the distance between the annular limiting surface 5 and the branch pipe 4 is controlled to prevent the length of the main pipe 3 from being too large due to an excessively large distance, thereby saving materials.

[0023] In one embodiment, as shown in Figure 2 , the branch pipe 4 is horizontally connected to the upper half of the main pipe 3, and the lower side of the branch pipe 4 is located above the center line of the main pipe 3. Even if excess glue flows out, the glue will flow downward under the action of gravity, minimizing contact with the branch pipe 4, thereby preventing the branch pipe 4 from being blocked by the glue.

[0024] In one embodiment, as shown in Figure 1 , the outer periphery of the branch pipe 4 is provided with anti-pull ribs 9, which improve the connection reliability between the branch pipe 4 and the rubber nano aeration pipe when the rubber nano aeration pipe is sleeved outside the branch pipe 4.

[0025] It should be understood that for those of ordinary skill in the art, improvements or variations can be made according to the above description, and all such improvements and variations shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. A plastic oxygen-permeable fitting, characterized in that, The system includes a main pipe and branch pipes. The main pipe has sockets at both ends for connecting plastic pipes. The branch pipe is located between the sockets and fixedly connected to the main pipe. An annular limiting surface is provided at the end of the socket closest to the branch pipe. A glue-retaining groove is provided along the inner circumference of the socket. The distance between the glue-retaining groove and the annular limiting surface is L1.5 mm. <L1<15mm。 2. The plastic oxygen-permeable fitting according to claim 1, characterized in that, The glue storage tank has a chamfer on the side near the annular limiting surface.

3. A plastic oxygen-permeable fitting according to claim 1, characterized in that, The main tube is integrally formed with reinforcing ribs along its outer circumference, and the reinforcing ribs are located on the outside of the glue storage tank.

4. A plastic oxygen-permeable fitting according to claim 3, characterized in that, The width of the reinforcing rib is W1, and the width of the adhesive storage groove is W2, 1.2 <W1 / W2<2。 5. A plastic oxygen-permeable fitting according to claim 1, characterized in that, The inner diameter of the branch pipe is r, and the distance between the annular limiting surfaces at both ends of the main pipe is L2, 1.1 <L2 / r<1.4。 6. A plastic oxygen-permeable fitting according to claim 1, characterized in that, The branch pipe is horizontally connected to the upper part of the main pipe.

7. A plastic oxygen-permeable fitting according to claim 1, characterized in that, The outer periphery of the branch pipe is provided with pull-out ribs.

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