T-connector threaded anti-rust cover
By designing a guide and positioning mechanism on the reducing tee, the problems of vibration and corrosion caused by reducing tee are solved, achieving connection stability and rust prevention, and extending service life.
Patent Information
- Application Number
- CN202522231917.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-10-22
AI Technical Summary
Existing reducing tees are prone to vibration under water hammer effect, which can lead to seal failure and loosening of connections. Furthermore, the threads of the pipe body are prone to corrosion, affecting its service life.
A rust-proof cover for the threaded tee pipe was designed. Through the guide protection mechanism and positioning mechanism, the rounded corner guide reduces hard impact. The protective cover and gasket provide protection. Combined with the multi-point plug positioning rod and anti-slip ring, it ensures stable connection and rust prevention.
It effectively avoids sealing failure and loosening of connections caused by vibration and corrosion in reducing tees, thus improving stability and lifespan.
Smart Images

Figure CN224944490U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline transportation technology, and more specifically, to a rust-proof cover for threaded tee pipes. Background Technology
[0002] Tees are commonly used water pipe fittings, often found in complex branch pipe systems, such as when a pipe route is split into two. In the past, separate circuits were set up for each circuit, which was not cost-effective. However, tees can achieve the same effect while saving costs. Therefore, tees have been widely used in the field of water pipe fittings. Metal tees are usually connected and sealed using threaded fittings.
[0003] Existing reducing tees are prone to pipe vibration due to water hammer when transporting liquids in pipelines. This vibration can lead to potential sealing or connection failures at the connection between the reducing tee branch and the main pipe, resulting in damage and loosening of the reducing tee and causing unnecessary losses.
[0004] A search revealed a Chinese patent with publication number CN222316279U that discloses a reducing tee pipe. This utility model expands an elastic pleated airbag by pushing a threaded sleeve. The expanded elastic pleated airbag can quickly fill the gap between the pipe head and the connecting pipe and firmly compress the connecting pipe, achieving rapid docking of the pipe body and the connecting pipe and ensuring the sealing of the connection. Since the expanded elastic pleated airbag is an elastic structure, it avoids the hidden danger of connection strength failure or sealing failure between the pipe connection end and the pipe body due to pipe vibration.
[0005] In actual use, when sealing one end of the reducing tee, the screw cap is connected to the threaded connection of the pipe body. With the accumulation of rainwater and impurities, rust may occur between the threads of the pipe body and the pipe cap, making it difficult to rotate the pipe cap and affecting the subsequent use of the reducing tee. Utility Model Content
[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a tee pipe threaded anti-rust cover to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: A tee pipe threaded anti-rust cap includes a reducer installed at the top of a connecting pipe. A cap is installed inside the reducer, and a connecting post is fixedly connected to the end of the cap. Multiple limiting holes are opened inside the connecting post. A positioning cap is snapped onto the outside of the connecting post, and a handle is fixedly connected to the outside of the positioning cap. A guide and protective mechanism is installed inside the positioning cap. The guide and protective mechanism includes a first rounded corner and a second rounded corner, both located inside the positioning cap. A protective cover is fixedly connected to the bottom of the positioning cap, and a washer is fixedly connected to the inside of the protective cover. The first and second rounded corners are distributed sequentially from top to bottom inside the positioning cap. A positioning mechanism is installed on the outside of the positioning cap.
[0008] By adopting the above technical solution: using the rounded corners 2 and 1 on the inner side of multiple positioning covers to slide and guide the connecting column and pipe cover in sequence, and using protective covers and gaskets to block and protect the edge of the reducer, reducing the entry of rainwater and dust, effectively avoiding corrosion caused by external factors, and maintaining smooth rotation of the pipe cover and reducer.
[0009] As a further description of the above technical solution: the positioning mechanism includes a first card holder, which is disposed on one side of the positioning cover. The first card holder has two slots on its inner side. A plurality of positioning rods are fixedly connected to one side of the first card holder. The positioning rods pass through the inner side of the positioning cover and extend to the outer side of the positioning cover. Two grooves are provided on the outer side of the positioning rods. A second card holder is disposed on the other side of the positioning cover. The second card holder has two slots on its inner side. A plurality of insertion holes are provided on one side of the second card holder. Two anti-slip rings are fixedly connected to the inner side of the insertion holes. The inner side of the insertion holes is inserted into one end of the positioning rod. The outer side of the anti-slip rings is engaged with the inner side of the grooves.
[0010] By adopting the above technical solution, multiple grooves are used to insert and position the positioning cover and the connecting post at multiple points, and the anti-slip rings on the inside of multiple holes are engaged with the grooves at one end of the positioning rod to keep the connection between the positioning cover and the connecting post stable.
[0011] The technical effects and advantages of this utility model are as follows: 1. By setting up a guiding and protective mechanism, compared with the existing technology, the inclined guide of rounded corner one and rounded corner two is used to avoid hard collision and squeezing during the installation of the positioning cover and the connecting column, so as to assist the positioning cover and the connecting column to connect quickly. In addition, the protective cover and gasket protect against dust and water, effectively preventing rust at the thread of the tee pipe, and allowing easy rotation of the pipe cover, improving the performance and service life of the connecting pipe and reducer. 2. By setting up a positioning mechanism, compared with the existing technology, multiple positioning rods are used to position the positioning cover and connecting column at multiple points, and multiple anti-slip rings are used to prevent the groove from detaching and locking, so as to keep the connection between the positioning cover and the connecting column stable and ensure the stable use of the reducing tee. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a partial schematic diagram of the connection between the valve pipe and the pipe cap of this utility model.
[0014] Figure 3 This is a partial schematic diagram of the connection between the positioning cover and the protective cover of this utility model.
[0015] Figure 4 This is a partial schematic diagram of the connection between the card holder and the anti-slip ring of this utility model.
[0016] Figure 5 This is a partial schematic diagram of the connection between the card holder and the positioning rod of this utility model.
[0017] Figure 6 For the present utility model Figure 3 Enlarged diagram of A in the middle.
[0018] The attached diagram is labeled as follows: 1. Connecting pipe; 3. Reducer; 4. Pipe cap; 5. Connecting post; 6. Limiting hole; 7. Positioning cover; 8. Turning handle; 9. Rounded corner one; 10. Rounded corner two; 11. Protective cover; 12. Washer; 13. Card seat one; 14. Bayonet one; 15. Positioning rod; 16. Groove; 17. Card seat two; 18. Insertion hole; 19. Anti-slip ring; 20. Bayonet two. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] The embodiments disclosed in this application are as follows: Figures 1-6The tee pipe threaded anti-rust cap shown includes a reducer 3 located at the top of the connecting pipe 1, a pipe cap 4 inside the reducer 3, a connecting post 5 fixedly connected to the end of the pipe cap 4, multiple limiting holes 6 on the inner side of the connecting post 5, a positioning cap 7 snapped onto the outer side of the connecting post 5, a handle 8 fixedly connected to the outer side of the positioning cap 7, and a guide protection mechanism inside the positioning cap 7; the guide protection mechanism includes rounded corner 1 9 and rounded corner 2 10, both of which are located inside the positioning cap 7, and a protective cover 11 fixedly connected to the bottom of the positioning cap 7, with a protective cover 11 fixedly connected to the inner side of the protective cover 11. A washer 12 is attached, and rounded corner 10 and rounded corner 2 are distributed from top to bottom on the inner side of the positioning cover 7. A positioning mechanism is provided on the outer side of the positioning cover 7. The positioning cover 7, the protective cover 11 and the washer 12 effectively protect the threaded connection between the pipe cover 4 and the reducer 3, preventing dust and rainwater from entering. The rounded corner 2 and rounded corner 10 can slide and guide the edges of the connecting post 5 and the pipe cover 4, so as to promote the smooth insertion of the positioning cover 7 and the connecting post 5, avoid the squeezing and collision during the installation of the positioning cover 7 and the connecting post 5, and reduce the wear of the positioning cover 7, the pipe cover 4 and the connecting post 5.
[0021] Reference Figure 3 , Figure 4 and Figure 5 As shown, the positioning mechanism includes a first retainer 13, which is disposed on one side of the positioning cover 7. Two latches 14 are formed on the inner side of the first retainer 13. Multiple positioning rods 15 are fixedly connected to one side of the first retainer 13. The positioning rods 15 penetrate the inner side of the positioning cover 7 and extend to the outer side of the positioning cover 7. Two grooves 16 are formed on the outer side of the positioning rods 15. A second retainer 17 is disposed on the other side of the positioning cover 7. Two latches 20 are formed on the inner side of the second retainer 17. Multiple insertion holes 18 are formed on one side of the second retainer 17. Two anti-slip rings 19 are fixedly connected on the inner side. The inner side of the insertion hole 18 is inserted into one end of the positioning rod 15, and the outer side of the anti-slip ring 19 is engaged with the inner side of the groove 16. Multiple positioning rods 15 on one side of the card seat 13 are used to insert and position the positioning cover 7 and the multiple limiting holes 6 on the inner side of the connecting column 5. Multiple insertion holes 18 on one side of the card seat 2 are also used to insert the positioning rods 15. Combined with the engagement of multiple anti-slip rings 19 with the corresponding grooves 16, the positioning cover 7 and the connecting column 5 can be connected at multiple points to maintain a stable connection.
[0022] The working principle of this utility model is as follows: When tightening the threads of the reducing tee, first align the positioning cover 7 and the protective cover 11 on the top of the reducing pipe 3 and the pipe cover 4, and insert the pipe cover 4 and the connecting post 5 into the inner side of the positioning cover 7. Then, use rounded corner 2 10 and rounded corner 1 9 to guide the edges of the connecting post 5 and the pipe cover 4 to slide more smoothly into the inner side of the positioning cover 7, and keep the inner side of the connecting post 5 and the positioning cover 7 in contact. Then, insert multiple positioning rods 15 on one side of the card seat 13 into the positioning cover 7 and the connecting post 5 inside it. Through the limiting hole 6, let one end of the positioning rod 15 pass through the connecting post 5 and extend out from the other side of the positioning cover 7. Then, insert the card seat 2 17. Insert the positioning cover 7 into the other side, so that the multiple insertion holes 18 on one side of the card seat 17 are aligned with the multiple positioning rods 15. Then, the two anti-slip rings 19 inside the multiple insertion holes 18 are engaged with the two grooves 16 at one end of the positioning rods 15, so that the card seat 13, positioning rods 15, card seat 2 17 and insertion holes 18 can perform multi-point insertion and positioning of the positioning cover 7 and the connecting post 5, keeping the connection between the positioning cover 7 and the connecting post 5 stable. The protective cover 11 and the washer 12 are used to protect the connection between the reducer 3 and the pipe cover 4 to prevent rainwater and impurities from entering and reduce rust at the connection between the reducer 3 and the pipe cover 4. Finally, the rust prevention of the threaded part of the reducer tee is completed, and the pipe cover 4 is turned by the throttle 8.
[0023] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.
[0024] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A three-way pipe thread rust-proof cap, comprising a reducing pipe (3) arranged at the top of a connecting pipe (1), characterized in that: The inner side of the reducing pipe (3) is provided with a pipe cover (4), and the end of the pipe cover (4) is fixedly connected to a connecting post (5). Multiple limiting holes (6) are opened on the inner side of the connecting post (5). A positioning cover (7) is snapped onto the outer side of the connecting post (5). A throttle (8) is fixedly connected to the outer side of the positioning cover (7). A guide protection mechanism is provided on the inner side of the positioning cover (7). The guide protection mechanism includes rounded corner one (9) and rounded corner two (10), both of which are located inside the positioning cover (7), and a protective cover (11) is fixedly connected to the bottom of the positioning cover (7). A positioning mechanism is provided on the outside of the positioning cover (7).
2. The tee pipe thread rust preventive cap according to claim 1, characterized in that: A gasket (12) is fixedly connected to the inner side of the protective cover (11), and the rounded corner one (9) and rounded corner two (10) are distributed from top to bottom on the inner side of the positioning cover (7).
3. The tee pipe thread rust cap of claim 1 wherein: The positioning mechanism includes a card seat (13), which is located on one side of the positioning cover (7). Two slots (14) are opened on the inner side of the card seat (13), and multiple positioning rods (15) are fixedly connected to one side of the card seat (13).
4. The tee pipe thread rust cap according to claim 3, wherein: The positioning rod (15) passes through the inside of the positioning cover (7) and extends to the outside of the positioning cover (7). Two grooves (16) are provided on the outside of the positioning rod (15).
5. The tee pipe thread rust cap of claim 1 wherein: The positioning cover (7) has a second card seat (17) on the other side, and two slots (20) are opened on the inner side of the second card seat (17).
6. The tee pipe thread rust cap of claim 5, wherein: The card holder (17) has multiple insertion holes (18) on one side, and two anti-slip rings (19) are fixedly connected to the inside of the insertion holes (18).
7. The tee pipe thread rust cap of claim 6, wherein: The inner side of the insertion hole (18) is inserted into one end of the positioning rod (15), and the outer side of the anti-slip ring (19) is engaged with the inner side of the groove (16).
Citation Information
Patent Citations
Reducing three-way pipe
CN222316279U
