Downstream tee joint convenient to install

Abstract

The utility model discloses a downstream tee joint convenient to install, which belongs to an indoor drainage structure and comprises a main body, an upper bell mouth is arranged on the main body, a spiral gland is arranged at the upper bell mouth and comprises a thread part with an internal thread, an external thread matched with the thread part is arranged on the outer side of the upper bell mouth, and the outer side of the upper bell mouth is provided with an external thread matched with the external thread part. A sealing piece is installed on the inner side of the upper bellmouth, a lower supporting opening and a horizontal supporting opening are further formed in the body, the spiral gland can be directly screwed on the upper bellmouth through a thread structure, sealing of the upper bellmouth is achieved through the sealing piece, the sealing effect can be ensured without welding, installation is more convenient, and the problem that in the prior art, the sealing effect is poor is solved. And the downstream tee joint is inconvenient to install.

Description

Technical Field

[0001] The utility model relates to an indoor drainage structure, in particular to a water-smoothing tee which is easy to install. Background Art

[0002] As a common pipe fitting in daily life, the water-flowing tee is often used in the construction of sewage drainage pipes in indoor sanitary buildings. Its main function is to collect horizontal branch pipes into the vertical pipe. In the prior art, each opening of the water-flowing tee needs to be connected to other structures by welding. Before welding, it is inconvenient to connect the various structures, which makes the installation process more troublesome.

[0003] For example, the "a kind of variable diameter water-flowing tee" disclosed in the Chinese patent literature, with the announcement number CN217559318U, includes a main pipe, at least one main pipe interface is provided on the outer periphery of the main pipe, and a reducing elbow is welded and connected to the main pipe interface, the reducing elbow has a large elbow port and a small elbow port, the large elbow port is cut along the bending direction to form an elbow interface, the elbow interface is matched with the main pipe interface and welded and fixed, and the small elbow port is provided with an elbow flange; the inner diameter of the large elbow port is the same as the inner diameter of the main pipe, and the size of the large elbow port is larger than the size of the small elbow port. The disadvantage of this patent is that each of its openings needs to be installed by welding, and it is inconvenient to connect each structure before welding, resulting in a more troublesome installation process. Utility Model Content

[0004] The utility model aims to overcome the problem of inconvenient installation of a water-following tee in the prior art and provides a water-following tee which is easy to install. The upper bearing mouth can be quickly installed and the sealing effect can be ensured at the same time.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a water-following tee which is easy to install, comprising a main body, an upper receiving opening being provided on the main body, a spiral pressure cover being installed at the upper receiving opening, the spiral pressure cover comprising a threaded portion with an internal thread, an external thread matching the threaded portion being provided on the outer side of the upper receiving opening, a sealing member being installed on the inner side of the upper receiving opening, and a lower branch opening and a horizontal branch opening being also provided on the main body.

[0007] In the present application, the spiral gland can be directly screwed onto the upper socket through a threaded structure, and the sealing of the upper socket is achieved through a sealing member, making installation more convenient.

[0008] Preferably, an inclined platform is provided on the inner side of the upper socket, and the sealing member includes a rubber ring and a pressure ring, the outer side of the rubber ring abuts against the inner side of the inclined platform, and the pressure ring is installed between the spiral gland and the rubber ring. The inclined platform can make the rubber ring gradually pressed against the upper socket during the process of being installed into the upper socket, and the pressure ring can continuously press the rubber ring downward during the process of tightening the spiral gland, thereby making the sealing process of the rubber ring more convenient.

[0009] Preferably, a boss is provided on the side of the spiral gland facing the upper socket, and the boss abuts against the pressure ring. The boss can increase the degree of downward pressure on the rubber ring, thereby ensuring the reliability of the seal.

[0010] Preferably, the boss is an annular shape coaxial with the threaded portion, an annular groove is formed between the boss and the threaded portion, and the end of the upper socket is located in the annular groove. The annular groove can ensure the coaxiality of the upper socket and the screw gland, and can further improve the sealing effect.

[0011] Preferably, the pressure ring is provided with a fracture, so that the diameter of the pressure ring can be continuously shrunk during the process of being squeezed by the spiral gland, so as to make it fit more closely with the inner side of the upper bearing.

[0012] Preferably, a limiting step is provided on the lower side of the inclined platform, which can prevent the rubber ring from being pressed too far down, resulting in loss of sealing at the installation position of the spiral gland.

[0013] Preferably, a positioning step is provided on the outer side of the horizontal branch port, so that the positioning step can make it easier to position the horizontal branch port when it is installed with the pipeline to be connected.

[0014] Preferably, the inner diameter of the horizontal branch opening gradually increases in a direction toward its opening.

[0015] Preferably, an arc portion is provided at the connection between the horizontal branch and the main body, which is used to achieve the purpose of water flow, reduce stress concentration, and increase the service life of the pipe.

[0016] Preferably, the lower end of the lower branch is provided with an inclined chamfer, which makes the installation of the lower branch more convenient when the lower branch is installed by socket.

[0017] Therefore, the utility model has the following beneficial effects: (1) installation is more convenient; (2) sealing effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0019] Figure 2It is a structural schematic diagram of the first embodiment of the utility model at the installation position of the spiral gland.

[0020] Figure 3 It is a structural schematic diagram of the second embodiment of the utility model at the installation position of the spiral gland.

[0021] Figure 4 It is a structural schematic diagram of the pressure ring of the third embodiment of the utility model.

[0022] Figure 5 It is a schematic diagram of the overall structure of the fourth embodiment of the present utility model.

[0023] In the figure: Screw gland 1 threaded part 1.1 boss 1.2 pressure ring 2 fracture 2.1 rubber ring 3 main body 4 upper bearing mouth 4.1 inclined platform 4.1.1 limiting step 4.1.2 lower branch 4.2 inclined chamfer 4.2.1 horizontal branch 4.3 positioning step 4.3.1 arcuate part 4.4. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Embodiment 1, as Figure 1-2 As shown, a water-following tee that is easy to install includes a spiral gland 1, a pressure ring 2, a rubber ring 3, and a main body 4. The upper side of the main body 4 is provided with an upper receiving opening 4.1, the lower side of the main body 4 is provided with a lower branch opening 4.2, and the side of the main body 4 is provided with a horizontal branch opening 4.3. The direction of the horizontal branch opening 4.3 is perpendicular to the direction of the upper receiving opening 4.1 and the direction of the lower branch opening 4.2.

[0026] An arc portion 4.4 is provided at the connection between the horizontal branch 4.3 and other parts of the main body 4. The arc portion 4.4 is used to achieve the purpose of flowing along the water, and can also reduce stress concentration and increase the service life of the pipe fittings.

[0027] The upper socket 4.1 is provided with a screw gland 1, which includes a threaded portion 1.1 with an internal thread, the threaded portion 1.1 is wrapped around the outer side of the upper socket 4.1, the outer side of the upper socket 4.1 is provided with an external thread matching the threaded portion 1.1, and a seal is installed on the inner side of the upper socket 4.1. The outer side of the screw gland 1 is provided with reinforcing ribs for enhancing its structural strength.

[0028] The inner side of the upper receiving port 4.1 is provided with an inclined platform 4.1.1, and the sealing member includes a rubber ring 3 and a pressure ring 2. The outer side of the rubber ring 3 abuts against the inner side of the inclined platform 4.1.1, and the pressure ring 2 is installed between the spiral gland 1 and the rubber ring 3. The inclined platform 4.1.1 can gradually press the rubber ring 3 against the upper receiving port 4.1 during the process of being installed into the upper receiving port 4.1, and the pressure ring 2 can continuously press the rubber ring 3 downward during the process of tightening the spiral gland 1, thereby making the sealing process of the rubber ring 3 more convenient. A limiting step 4.1.2 for limiting the rubber ring 3 is provided on the lower side of the inclined platform 4.1.1. The material of the pressure ring 2 is ABS.

[0029] The horizontal branch opening 4.3 is a hot-melt expansion opening, and a positioning step 4.3.1 is arranged on its outer side. The inner diameter of the horizontal branch opening 4.3 gradually increases in the direction toward its opening, so that the pipe can be hot-melt welded to be flush with the step height.

[0030] During the installation process, first make a socket connection on the lower branch 4.2 of the main body 4, then put the rubber ring 3, the pressure ring 2, and the spiral gland 1 on the upper socket 4.1 in sequence, tighten the spiral gland 1, and then weld the pipe and hot-melt expand the mouth to complete the socket connection.

[0031] Embodiment 2, as Figure 3 As shown, a water-following tee that is easy to install includes a spiral gland 1, a pressure ring 2, a rubber ring 3, and a main body 4. The upper side of the main body 4 is provided with an upper receiving opening 4.1, the lower side of the main body 4 is provided with a lower branch opening 4.2, and the side of the main body 4 is provided with a horizontal branch opening 4.3. The direction of the horizontal branch opening 4.3 is perpendicular to the direction of the upper receiving opening 4.1 and the direction of the lower branch opening 4.2.

[0032] An arc portion 4.4 is provided at the connection between the horizontal branch 4.3 and other parts of the main body 4. The arc portion 4.4 is used to achieve the purpose of flowing along the water, and can also reduce stress concentration and increase the service life of the pipe fittings.

[0033] The upper socket 4.1 is provided with a screw gland 1, which includes a threaded portion 1.1 with an internal thread, the threaded portion 1.1 is wrapped around the outer side of the upper socket 4.1, the outer side of the upper socket 4.1 is provided with an external thread matching the threaded portion 1.1, and a seal is installed on the inner side of the upper socket 4.1. The outer side of the screw gland 1 is provided with reinforcing ribs for enhancing its structural strength.

[0034] The inner side of the upper receiving port 4.1 is provided with an inclined platform 4.1.1, and the sealing member includes a rubber ring 3 and a pressure ring 2. The outer side of the rubber ring 3 abuts against the inner side of the inclined platform 4.1.1, and the pressure ring 2 is installed between the spiral gland 1 and the rubber ring 3. The inclined platform 4.1.1 can gradually press the rubber ring 3 against the upper receiving port 4.1 during the process of being installed into the upper receiving port 4.1, and the pressure ring 2 can continuously press the rubber ring 3 downward during the process of tightening the spiral gland 1, thereby making the sealing process of the rubber ring 3 more convenient. A limiting step 4.1.2 for limiting the rubber ring 3 is provided on the lower side of the inclined platform 4.1.1. The material of the pressure ring 2 is ABS.

[0035] The difference from the first embodiment is that, in this embodiment, the spiral gland 1 is provided with a boss 1.2 on the side facing the upper socket 4.1, and the boss 1.2 abuts against the pressure ring 2. When the spiral gland 1 and the upper socket 4.1 are threadedly matched and tightened, the boss 1.2 will squeeze the pressure ring 2, so that it will continuously squeeze the rubber ring 3 downward to achieve the effect of tight sealing and watertightness at the connection after the spiral is tightened. The boss 1.2 can increase the degree of downward pressure on the rubber ring 3, thereby ensuring the reliability of the seal. The boss 1.2 is an annular shape coaxial with the threaded portion 1.1, and an annular groove is formed between the boss 1.2 and the threaded portion 1.1. The end of the upper socket 4.1 is located in the annular groove, thereby improving the coaxiality of the spiral gland 1 and the upper socket 4.1 during installation, and the upper socket 4.1 can be stuck into the annular groove when tightened, so that the two are more tightly connected.

[0036] The horizontal branch opening 4.3 is a hot-melt expansion opening, and a positioning step 4.3.1 is arranged on its outer side. The inner diameter of the horizontal branch opening 4.3 gradually increases in the direction toward its opening, so that the pipe can be hot-melt welded to be flush with the step height.

[0037] During the installation process, first make a socket connection on the lower branch 4.2 of the main body 4, then put the rubber ring 3, the pressure ring 2, and the spiral gland 1 on the upper socket 4.1 in sequence, tighten the spiral gland 1, and then weld the pipe and hot-melt expand the mouth to complete the socket connection.

[0038] Embodiment three, as Figure 4 As shown, a water-following tee that is easy to install includes a spiral gland 1, a pressure ring 2, a rubber ring 3, and a main body 4. The upper side of the main body 4 is provided with an upper receiving opening 4.1, the lower side of the main body 4 is provided with a lower branch opening 4.2, and the side of the main body 4 is provided with a horizontal branch opening 4.3. The direction of the horizontal branch opening 4.3 is perpendicular to the direction of the upper receiving opening 4.1 and the direction of the lower branch opening 4.2.

[0039] An arc portion 4.4 is provided at the connection between the horizontal branch 4.3 and other parts of the main body 4. The arc portion 4.4 is used to achieve the purpose of flowing along the water, and can also reduce stress concentration and increase the service life of the pipe fittings.

[0040] The upper socket 4.1 is provided with a screw gland 1, which includes a threaded portion 1.1 with an internal thread, the threaded portion 1.1 is wrapped around the outer side of the upper socket 4.1, the outer side of the upper socket 4.1 is provided with an external thread matching the threaded portion 1.1, and a seal is installed on the inner side of the upper socket 4.1. The outer side of the screw gland 1 is provided with reinforcing ribs for enhancing its structural strength.

[0041] The inner side of the upper receiving port 4.1 is provided with an inclined platform 4.1.1, and the sealing member includes a rubber ring 3 and a pressure ring 2. The outer side of the rubber ring 3 abuts against the inner side of the inclined platform 4.1.1, and the pressure ring 2 is installed between the spiral gland 1 and the rubber ring 3. The inclined platform 4.1.1 can gradually press the rubber ring 3 against the upper receiving port 4.1 during the process of being installed into the upper receiving port 4.1, and the pressure ring 2 can continuously press the rubber ring 3 downward during the process of tightening the spiral gland 1, thereby making the sealing process of the rubber ring 3 more convenient. The lower side of the inclined platform 4.1.1 is provided with a limiting step 4.1.2 for limiting the rubber ring 3. The material of the pressure ring 2 is ABS. The difference from the second embodiment is that in this embodiment, the pressure ring 2 is not a complete circular ring, but has a fracture 2.1, and the outer side surface of the pressure ring 2 is provided with an inclined surface, and the inclination angle of the inclined surface is adapted to the inclination angle of the inclined platform 4.1.1. When the pressure ring 2 is pressed down by the screw gland 1, its fracture 2.1 can shrink, so that the diameter of the pressure ring 2 is reduced, so that it fits more closely on the inner wall of the upper socket 4.1.

[0042] The screw gland 1 is provided with a boss 1.2 on the side facing the upper socket 4.1, and the boss 1.2 abuts against the pressure ring 2. When the screw gland 1 and the upper socket 4.1 are threadedly tightened, the boss 1.2 will squeeze the pressure ring 2, so that it will continuously squeeze the rubber ring 3 downward to achieve a tight and watertight connection after the screw is tightened. The boss 1.2 can increase the degree of downward pressure on the rubber ring 3, thereby ensuring the reliability of the seal. The boss 1.2 is an annular shape coaxial with the threaded portion 1.1, and an annular groove is formed between the boss 1.2 and the threaded portion 1.1. The end of the upper socket 4.1 is located in the annular groove, thereby improving the coaxiality of the screw gland 1 and the upper socket 4.1 during installation, and the upper socket 4.1 can be stuck into the annular groove when tightened, so that the two are more tightly connected.

[0043] The horizontal branch opening 4.3 is a hot-melt expansion opening, and a positioning step 4.3.1 is arranged on its outer side. The inner diameter of the horizontal branch opening 4.3 gradually increases in the direction toward its opening, so that the pipe can be hot-melt welded to be flush with the step height.

[0044] During the installation process, first make a socket connection on the lower branch 4.2 of the main body 4, then put the rubber ring 3, the pressure ring 2, and the spiral gland 1 on the upper socket 4.1 in sequence, tighten the spiral gland 1, and then weld the pipe and hot-melt expand the mouth to complete the socket connection.

[0045] Embodiment 4, as Figure 5 As shown, a water-following tee that is easy to install includes a spiral gland 1, a pressure ring 2, a rubber ring 3, and a main body 4. The upper side of the main body 4 is provided with an upper receiving opening 4.1, the lower side of the main body 4 is provided with a lower branch opening 4.2, and the side of the main body 4 is provided with a horizontal branch opening 4.3. The direction of the horizontal branch opening 4.3 is perpendicular to the direction of the upper receiving opening 4.1 and the direction of the lower branch opening 4.2.

[0046] An arc portion 4.4 is provided at the connection between the horizontal branch 4.3 and other parts of the main body 4. The arc portion 4.4 is used to achieve the purpose of flowing along the water, and can also reduce stress concentration and increase the service life of the pipe fittings.

[0047] The upper socket 4.1 is provided with a screw gland 1, which includes a threaded portion 1.1 with an internal thread, the threaded portion 1.1 is wrapped around the outer side of the upper socket 4.1, the outer side of the upper socket 4.1 is provided with an external thread matching the threaded portion 1.1, and a seal is installed on the inner side of the upper socket 4.1. The outer side of the screw gland 1 is provided with reinforcing ribs for enhancing its structural strength.

[0048] The inner side of the upper receiving port 4.1 is provided with a ramp 4.1.1, and the sealing member includes a rubber ring 3 and a pressure ring 2. The outer side of the rubber ring 3 abuts against the inner side of the ramp 4.1.1, and the pressure ring 2 is installed between the spiral gland 1 and the rubber ring 3. The ramp 4.1.1 can gradually press the rubber ring 3 against the upper receiving port 4.1 during the process of being installed into the upper receiving port 4.1, and the pressure ring 2 can continuously press the rubber ring 3 downward during the process of tightening the spiral gland 1, thereby making the sealing process of the rubber ring 3 more convenient. A limiting step 4.1.2 for limiting the rubber ring 3 is provided on the lower side of the ramp 4.1.1. The material of the pressure ring 2 is ABS, and the pressure ring 2 is not a complete circular ring, but has a fracture 2.1, and the outer side surface of the pressure ring 2 is provided with an inclined surface, and the inclination angle of the inclined surface is adapted to the inclination angle of the ramp 4.1.1. When the pressure ring 2 is pressed down by the screw gland 1, its fracture 2.1 can shrink, so that the diameter of the pressure ring 2 is reduced, so that it fits more closely on the inner wall of the upper socket 4.1.

[0049] The screw gland 1 is provided with a boss 1.2 on the side facing the upper socket 4.1, and the boss 1.2 abuts against the pressure ring 2. When the screw gland 1 and the upper socket 4.1 are threadedly tightened, the boss 1.2 will squeeze the pressure ring 2, so that it will continuously squeeze the rubber ring 3 downward to achieve a tight and watertight connection after the screw is tightened. The boss 1.2 can increase the degree of downward pressure on the rubber ring 3, thereby ensuring the reliability of the seal. The boss 1.2 is an annular shape coaxial with the threaded portion 1.1, and an annular groove is formed between the boss 1.2 and the threaded portion 1.1. The end of the upper socket 4.1 is located in the annular groove, thereby improving the coaxiality of the screw gland 1 and the upper socket 4.1 during installation, and the upper socket 4.1 can be stuck into the annular groove when tightened, so that the two are more tightly connected.

[0050] The horizontal branch opening 4.3 is a hot-melt expansion opening, and a positioning step 4.3.1 is arranged on its outer side. The inner diameter of the horizontal branch opening 4.3 gradually increases in the direction toward its opening, so that the pipe can be hot-melt welded to be flush with the step height.

[0051] Compared with the third embodiment, in this embodiment, the lower end of the lower branch 4.2 is provided with an inclined chamfer 4.2.1, the main purpose of which is to make the construction more convenient and quick during the socket installation.

[0052] During the installation process, first make a socket connection on the lower branch 4.2 of the main body 4, then put the rubber ring 3, the pressure ring 2, and the spiral gland 1 on the upper socket 4.1 in sequence, tighten the spiral gland 1, and then weld the pipe and hot-melt expand the mouth to complete the socket connection.

Claims

1. A water-following tee that is easy to install, characterized in that: It includes a main body, an upper socket is provided on the main body, a spiral pressure cover is installed on the upper socket, the spiral pressure cover includes a threaded portion with an internal thread, the outer side of the upper socket is provided with an external thread matched with the threaded portion, a sealing member is installed on the inner side of the upper socket, a lower branch port and a horizontal branch port are also provided on the main body, an inclined platform is provided on the inner side of the upper socket, and a limiting step is provided on the lower side of the inclined platform.

2. The water-following tee that is easy to install according to claim 1 is characterized in that: The outer side of the rubber ring abuts against the inner side of the ramp, and the pressure ring is installed between the spiral gland and the rubber ring.

3. The easy-to-install water-following tee according to claim 2 is characterized in that: A boss is provided on one side of the spiral gland facing the upper socket, and the boss abuts against the pressure ring.

4. The easy-to-install water-following tee according to claim 3 is characterized in that: The boss is an annular shape coaxial with the threaded portion, an annular groove is formed between the boss and the threaded portion, and the end of the upper socket is located in the annular groove.

5. The easy-to-install water-flowing tee according to claim 2 is characterized in that: The pressure ring is provided with a fracture.

6. A water-flowing tee that is easy to install according to any one of claims 1 to 5, characterized in that: A positioning step is arranged on the outer side of the horizontal branch opening.

7. A water-flowing tee that is easy to install according to any one of claims 1 to 5, characterized in that: The inner diameter of the horizontal branch opening gradually increases in a direction toward the opening thereof.

8. A water-flowing tee that is easy to install according to any one of claims 1 to 5, characterized in that: An arc portion is provided at the connection between the horizontal branch opening and the main body.

9. A water-flowing tee that is easy to install according to any one of claims 1 to 5, characterized in that: The lower end of the lower branch opening is provided with an inclined chamfer.

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