A three-way connection device for aerator
By designing a tee connection device with NPT taper external thread, locking gasket and reinforcement plate in the aerator, the problems of poor matching and insufficient strength in the prior art are solved, and a more stable aerator connection is achieved. Higher sealing performance.
Patent Information
- Application Number
- CN201811133772.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-09-27
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2038-09-27
AI Technical Summary
The three-way connectors of existing aerators have problems such as poor matching, poor sealing, loose threads due to thermal expansion and contraction, insufficient strength and small application range, resulting in high operating costs and unstable equipment in sewage treatment.
A special three-way connection device for aerator is designed, using NPT taper external thread, locking gasket and positioning block, vertical pipe cone surface and outer wire structure, which increases the stability and sealing of the connection and strengthens the connection. The board improves overall strength.
It realizes a firm connection with the aerator, reduces the burden on threads and the risk of damage, improves sealing performance and equipment service life, and has a wider range of applications.
Smart Images
Figure CN110953426B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of aerators and accessories thereof, and in particular to a three-way connecting device dedicated to an aerator. Background Art
[0002] Aerators have a great impact on the efficiency of oxygen transfer and the operating cost of sewage treatment in the field of sewage treatment. The development and application of aerators in China began in the mid-1980s. Representative ones include: perforated tube aerator, corundum aerator, disc microporous aerator, tubular aerator, jet aerator, diffused flow aerator, vortex mixing aerator, etc.
[0003] Multiple tubular aerators sometimes need to be connected to the ventilation system through a three-way connector to achieve multi-tube aeration. The existing three-way connectors for aerators have the following shortcomings:
[0004] 1. Poor matching, poor thread sealing, engineering installation requires raw tape, which is labor-consuming and time-consuming;
[0005] 2. During operation, the vibration caused by thermal expansion and contraction and air circulation may cause the threads to loosen and the product to fall off;
[0006] 3. The tee uses internal threads, which are not strong enough to cause the thread wall to break, resulting in damage to the tee.
[0007] 4. The scope of application is small, and different working conditions require different tees.
[0008] Therefore, it needs to be improved urgently. Summary of the invention
[0009] In order to solve the above technical problems, the purpose of the present invention is to provide a three-way connection device dedicated to an aerator, which has the advantages of being firmly connected to the aerator.
[0010] To achieve the above-mentioned purpose, the present invention provides a three-way connection device dedicated to an aerator, comprising a three-way pipe, wherein the three-way pipe comprises a straight pipe with two aerators connected at both ends and a vertical pipe connected to the ventilation system and perpendicular to the straight pipe, the end of the straight pipe is provided with an NPT tapered external thread connected to the aerator, the straight pipe is provided with a locking gasket on the side of the NPT tapered external thread close to the vertical pipe, the locking gasket is connected to a plurality of positioning blocks, the locking gasket is tightly engaged with a locking gasket with a polygonal structure on the side close to the NPT tapered external thread, the locking gasket is provided with a plurality of positioning grooves matching the positioning blocks, and the locking gasket is provided with a plurality of protrusions for connecting the aerator on the side away from the locking gasket; the vertical pipe is provided with a conical surface at the connection with the straight pipe, and the vertical pipe is provided with an external thread at the end away from the straight pipe; the three-way pipe is provided with a plurality of reinforcing plates.
[0011] Preferably, the vertical pipe is detachably connected to a vertical pipe, the vertical pipe is provided with an internal thread connected to an external thread, and the vertical pipe is provided with an air outlet connected to a ventilation system.
[0012] Preferably, the riser is provided with a conical base abutting against the conical surface.
[0013] Preferably, a self-tapping screw is provided between the base and the tee pipe to prevent the riser from loosening.
[0014] Preferably, the positioning block is in the shape of an arrow cluster.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] (1) NPT tapered external thread adopts the American standard 60-degree tapered pipe external thread, which has the characteristic of becoming tighter as it is screwed, has excellent sealing performance, matches the thread on the aerator, and achieves a reliable connection with the aerator;
[0017] (2) The locking gasket can be combined with several positioning blocks to effectively prevent the locking gasket from rotating. The locking gasket is used to connect with the aerator. Several protrusions can be locked with the corresponding structure of the aerator to prevent the threads from loosening due to thermal expansion and contraction and vibration. At the same time, the contact area between the aerator and the tee is increased, the thread burden is reduced, and the thread life is extended;
[0018] (3) The vertical pipe is provided with a conical surface at the connection with the straight pipe, which can increase the contact surface when directly connected to the ventilation system or connected to the vertical pipe and then connected to the ventilation system, reduce the thread burden, and avoid thread breakage;
[0019] (4) The vertical pipe is equipped with an external thread (preferably φ32 external thread) at the end away from the straight pipe, which can reduce the damage to the thread wall caused by the connectors or vertical pipes of the ventilation system;
[0020] (5) Several reinforcing plates can make the tee pipe more stable and stronger. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a partial exploded front view of a three-way connection device for an aerator of the present invention realizing a two-tube aeration state;
[0022] Figure 2 It is a schematic diagram of a three-dimensional structure of partial explosion of a special three-way connection device for an aerator of the present invention to realize a two-tube aeration state;
[0023] Figure 3 It is a partially exploded isometric view of a three-way connection device for an aerator of the present invention realizing a two-tube aeration state;
[0024] Figure 4The diagram is a partial explosion structure diagram of a three-way connection device for an aerator of the present invention realizing a four-tube aeration state after being connected to a vertical pipe.
[0025] In the figure: 1. Tee pipe; 2. Straight pipe; 3. Vertical pipe; 4. NPT tapered external thread; 5. Locking gasket; 6. Positioning block; 7. Locking gasket; 8. Positioning groove; 9. Protrusion; 10. Conical surface; 11. External thread; 12. Reinforcement plate; 13. Vertical pipe. DETAILED DESCRIPTION
[0026] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following embodiments are given by way of example and detailed description with reference to the accompanying drawings.
[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.
[0028] The present invention provides a three-way connection device dedicated to an aerator, comprising a three-way pipe 1, wherein the three-way pipe 1 comprises a straight pipe 2 with two ends respectively connected to two aerators and a vertical pipe 3 connected to a ventilation system and perpendicular to the straight pipe 2, wherein the end of the straight pipe 2 is provided with an NPT tapered external thread 4 connected to the aerator, and the straight pipe 2 is provided with a locking gasket 5 on the side of the NPT tapered external thread 4 close to the vertical pipe 3, and the locking gasket 5 is connected with a plurality of positioning blocks 6, and the locking gasket 5 is tightly connected with a locking gasket 7 of a polygonal structure on the side close to the NPT tapered external thread 4, and the locking gasket 7 is provided with a plurality of positioning grooves 8 matching the positioning blocks 6, and the locking gasket 7 is provided with a plurality of protrusions 9 for connecting the aerator on the side away from the locking gasket 5; the vertical pipe 3 is provided with a tapered surface 10 at the connection with the straight pipe 2, and the vertical pipe 3 is provided with an external thread 11 at the end away from the straight pipe 2; and the three-way pipe 1 is provided with a plurality of reinforcing plates 12.
[0029] By adopting the above technical solution, the NPT tapered external thread 4 adopts the American standard 60-degree tapered pipe external thread, which has the characteristic of becoming tighter as it is screwed, has excellent sealing performance, matches the thread on the aerator, and realizes a reliable connection with the aerator;
[0030] The locking gasket 5 cooperates with a number of positioning blocks 6 to effectively prevent the locking gasket 7 from rotating. The locking gasket 7 is used to connect with the aerator. The protrusions 9 can be locked with the corresponding structure of the aerator to prevent the thread from loosening due to thermal expansion and contraction and vibration. At the same time, the contact area between the aerator and the tee is increased, the thread burden is reduced, and the thread life is extended;
[0031] The vertical pipe 3 is provided with a conical surface 10 at the connection with the straight pipe 2, which can increase the contact surface when directly connected to the ventilation system or connected to the vertical pipe 13 and then connected to the ventilation system, reduce the thread burden, and avoid thread breakage;
[0032] The vertical pipe 3 is provided with an external thread 11 (preferably a φ32 external thread 11) at the end away from the straight pipe 2, which can reduce the damage to the thread wall by the connectors or vertical pipes 13 of the ventilation system; a plurality of reinforcing plates 12 can make the three-way pipe 1 more stable and stronger.
[0033] Preferably, the vertical pipe 3 is detachably connected to a vertical pipe 13 , the vertical pipe 13 is provided with an inner thread threadedly connected to the outer thread 11 , and the vertical pipe 13 is provided with an air outlet communicated with a ventilation system.
[0034] By adopting the above technical solution, when the vertical pipe 13 is threadedly connected at the vertical pipe 3, the vertical pipe 3 of another three-way pipe 1 can be threadedly connected to the other end of the vertical pipe 13 to achieve four-tube aeration, which has a better effect. The air from the ventilation system passes through the air outlet and the vertical pipe 13 in sequence and then enters the two three-way pipes 1, and finally enters the four aerators to achieve four-tube aeration. When the vertical pipe 13 is removed and only one three-way pipe 1 is used, two-tube aeration is achieved.
[0035] The inner thread is preferably made of stainless steel, and can be made on the inner wall surface of the vertical pipe 13, or can be separated from the vertical pipe 13 to form an independent connection section, which can be adapted to vertical pipes 13 of various sizes, such as φ25, φ32, φ38, etc.
[0036] Preferably, the riser 13 is provided with a conical base abutting against the conical surface 10 .
[0037] By adopting the above technical solution, the conical base abuts against and fully contacts the conical surface 10, which can increase the contact surface, reduce the thread burden, and avoid thread breakage.
[0038] Preferably, a self-tapping screw is provided between the base and the tee pipe 1 to prevent the riser 13 from loosening.
[0039] By adopting the above technical solution, after the vertical pipe 13 and the vertical pipe 3 are tightened, in order to prevent the vibration generated during work from loosening the thread, a self-tapping screw is arranged between the base and the tee pipe 1 to prevent the vertical pipe 13 from loosening.
[0040] Preferably, the positioning block 6 is in the shape of an arrow cluster.
[0041] By adopting the above technical solution, the arrow-shaped positioning block 6 is engaged with the positioning groove 8 of matching shape, which can effectively prevent the locking pad block 7 from rotating.
[0042] In summary, the above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereto. All equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification are within the scope covered by the patent of the present invention.
Claims
1. A three-way connection device for an aerator, characterized in that: The invention comprises a three-way pipe, wherein the three-way pipe comprises a straight pipe respectively connected to two aerators at both ends and a vertical pipe connected to the ventilation system and perpendicular to the straight pipe, wherein the end of the straight pipe is provided with an NPT tapered external thread connected to the aerator, wherein the straight pipe is provided with a locking gasket on the side of the NPT tapered external thread close to the vertical pipe, wherein the locking gasket is connected with a plurality of positioning blocks, wherein the locking gasket is tightly connected with a locking gasket of a polygonal structure on the side close to the NPT tapered external thread, wherein the locking gasket is provided with a plurality of Positioning groove, the locking gasket is provided with a plurality of protrusions for connecting the aerator on the side away from the locking gasket; the vertical pipe is provided with a conical surface at the connection with the straight pipe, and the vertical pipe is provided with an external thread at the end away from the straight pipe; the three-way pipe is provided with a plurality of reinforcing plates; the vertical pipe is detachably connected with a vertical pipe, the vertical pipe is provided with an internal thread connected with the external thread, and the vertical pipe is provided with an air outlet connected with the ventilation system; the internal thread is made of stainless steel; the vertical pipe is provided with a conical base abutting against the conical surface; the positioning block is in the shape of an arrow cluster.
2. A three-way connection device for an aerator according to claim 1, characterized in that: A self-tapping screw is arranged between the base and the three-way pipe to prevent the vertical pipe from loosening.