A type of right-angle tee fitting that is easy to clamp

Abstract

This utility model discloses a right-angle tee fitting that is easy to clamp, belonging to the technical field of right-angle tee pipes. It includes a tee pipe body, with connecting pipes connected to the inner side of the output end of the tee pipe body, and first connecting collars connected to the outer side of the output end of the tee pipe body by threads. A movable rod is fixedly connected to the outer side of the piston block, and a push block is connected to the other end of the movable rod. The push block is located on one side of the locking sleeve. This utility model connects the first connecting collar to the three pipes of the tee pipe body by threads, then connects the second connecting collar to the outer side of the connecting pipe by threads, then inserts the connecting pipe into the tee pipe body, and at the same time adjusts the state between the first rotating ring, the second rotating ring, and the corresponding first and second protrusions according to the corner angle, so that the limiting rod passes through the second protrusion. Finally, the locking sleeve is twisted, and the locking sleeve and the second connecting collar are fixedly connected and locked by threaded engagement, thereby enhancing the connection performance.

Description

Technical Field

[0001] This utility model belongs to the field of right-angle tee pipe technology, specifically a right-angle tee pipe fitting that is easy to clamp. Background Technology

[0002] In fields such as building water supply and drainage, HVAC, and industrial fluid transportation, right-angle tee fittings are widely used in corner installations of piping systems as key connecting components for fluid diversion or merging. Their core function is to connect three pipes in different directions, ensuring stable fluid transmission within a right-angle space. They must also possess reliable connection strength and sealing to prevent system failures, resource waste, or even safety hazards caused by pipe loosening, detachment, or leakage. With the increasing demands for installation efficiency, adaptability, and long-term stability in modern building and industrial piping systems, the clamping structure design of right-angle tee fittings has become a core factor affecting their performance. How to simplify installation operations and improve adaptability to different corner environments while ensuring clamping firmness has become a pressing technical need in the industry.

[0003] Currently, the common connection and clamping methods for right-angle tee fittings on the market are mainly divided into two categories: one is a threaded connection structure, where the tee body and the connecting pipe are fixed by the cooperation of external and internal threads. Some products will add a sealing gasket at the threaded connection to improve the sealing performance; the other is a snap-fit ​​or clamping structure, where the connecting pipe is snapped into the interface of the tee body by elastic snaps, or the connection is clamped and fixed by metal clamps or plastic clamps. In addition, for some scenarios with high requirements for connection strength, existing technologies also use welding connection, which fixes the tee body and the connecting pipe into one piece by high-temperature fusion to ensure the connection stability during long-term use.

[0004] The existing technology has the following shortcomings:

[0005] Threaded connections are prone to loosening due to fluid vibration and temperature changes during long-term use, which can lead to the separation of the connecting pipe from the tee pipe. Snap-on structures are limited by material elastic fatigue, and the clamping force of the snap-on will gradually decrease after long-term use, also posing a risk of falling off. While welded connections can ensure firmness, they cannot be disassembled and adjusted once installed, resulting in extremely high maintenance costs later on. Utility Model Content

[0006] To overcome the above-mentioned defects, this utility model provides a right-angle tee fitting that is easy to clamp, thus solving the technical problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a right-angle tee fitting for easy clamping, comprising a tee pipe body, connecting pipes respectively connected to the inner side of the output end of the tee pipe body, and first connecting collars respectively threadedly connected to the outer side of the output end of the tee pipe body. A locking sleeve is threadedly connected to the outer side of the first connecting collar, and a second connecting collar is threadedly connected to the outer side of the connecting pipe. The locking sleeve is threadedly connected to the outer side of the second connecting collar. A first rotating ring is rotatably connected to one end of the first connecting collar, and a first protrusion is fixedly connected to the outer side of the first rotating ring in a symmetrical structure. A limiting rod is fixedly connected to the inner side of a protrusion. A second rotating ring is rotatably connected to one end of the second connecting collar. A second protrusion is fixedly connected to the outer side of the second rotating ring in a symmetrical structure. The limiting rod movably passes through the second protrusion. An air storage cylinder is embedded and connected to the end of the limiting rod. Multiple sets of extrusion rods are movably connected to the outer side of the air storage cylinder. A limiting block is fixedly connected to the end of the extrusion rod. The limiting block is located outside the second protrusion. A piston block is slidably connected to the inner side of the air storage cylinder. A movable rod is fixedly connected to the outer side of the piston block. A push block is connected to the other end of the movable rod. The push block is located on one side of the locking sleeve.

[0008] As a further embodiment of this utility model: the limiting rod has a hollow structure inside, a fixing block is snapped into the limiting rod, and a tension spring is fixedly connected between the fixing block and the push block, the tension spring being located inside the limiting rod.

[0009] As a further embodiment of this utility model: the push block has an L-shaped structure, and the outer side of the limiting rod is provided with a slot for use with the push block.

[0010] As a further embodiment of this utility model: an air inlet pipe is provided on the outside of the air storage cylinder, the air inlet pipe passes through the limiting rod, and a one-way air inlet valve is provided inside the air inlet pipe.

[0011] As a further embodiment of this utility model, the outer side of the locking sleeve is provided with multiple sets of anti-slip grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] By connecting the first connecting collar to the three pipes of the tee pipe body through threads, then connecting the second connecting collar to the outside of the connecting pipe through threads, and then inserting the connecting pipe into the tee pipe body, while adjusting the state between the first rotating ring, the second rotating ring and the corresponding first and second protrusions according to the corner angle, so that the limiting rod passes through the second protrusion, and finally twisting the locking sleeve, the locking sleeve and the second connecting collar are fixedly connected and locked through threaded engagement, thereby enhancing the connection performance;

[0014] When the locking sleeve is connected to the second connecting collar, the locking sleeve will push the push block, causing the movable rod to move the piston block in the air storage cylinder outward, thereby squeezing the extrusion rod and the limiting block outward, so that the limiting block and the second protrusion are locked together, preventing the connecting pipe from separating from the main body of the tee pipe. Attached Figure Description

[0015] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 5 For the present utility model Figure 4 A magnified view of a portion of point A in the middle.

[0020] In the diagram: 1. Main body of the tee pipe; 2. Connecting pipe; 3. First connecting collar; 4. First rotating ring; 5. First protrusion; 6. Limiting rod; 7. Second connecting collar; 8. Second rotating ring; 9. Second protrusion; 10. Locking sleeve; 11. Fixing block; 12. Tension spring; 13. Push block; 14. Air tank; 15. Movable rod; 16. Piston block; 17. Extrusion rod; 18. Limiting block; 19. Air inlet pipe. Detailed Implementation

[0021] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0022] like Figures 1-5 As shown, this utility model provides a technical solution:

[0023] A convenient clamping right-angle tee fitting includes a tee body 1. Connecting pipes 2 are connected to the inner side of the output end of the tee body 1. A first connecting collar 3 is threadedly connected to the outer side of the output end of the tee body 1. A locking sleeve 10 is threadedly connected to the outer side of the first connecting collar 3. A second connecting collar 7 is threadedly connected to the outer side of the connecting pipe 2. The locking sleeve 10 is threadedly connected to the outer side of the second connecting collar 7. A first rotating ring 4 is rotatably connected to one end of the first connecting collar 3. A first protrusion 5 is symmetrically fixedly connected to the outer side of the first rotating ring 4. A limiting rod 6 is fixedly connected to the inner side of the first protrusion 5. A second rotating ring 8 is rotatably connected to one end of the second connecting collar 7. A second protrusion 9 is symmetrically fixedly connected to the outer side of the second rotating ring 8. The limiting rod 6 movably passes through the second protrusion 9. An air storage tube 14 is embedded at the end of the limiting rod 6. Multiple sets of extrusion rods 17 are movably connected to the outer side of the air storage tube 14. A limiting block 18 is fixedly connected to the end of the extrusion rod 17. Located outside the second protrusion 9, a piston block 16 is slidably connected to the inner side of the air storage cylinder 14. A movable rod 15 is fixedly connected to the outer side of the piston block 16. A push block 13 is connected to the other end of the movable rod 15. The push block 13 is located on one side of the locking sleeve 10.

[0024] Specifically, in use, firstly, the first connecting collar 3 is connected to the three pipes of the tee pipe body 1 via threads. Then, the second connecting collar 7 is connected to the outside of the connecting pipe 2 via threads. Subsequently, the connecting pipe 2 is inserted into the tee pipe body 1. At the same time, according to the angle of the wall corner, the state between the first rotating ring 4, the second rotating ring 8, and the corresponding first protrusion 5 and second protrusion 9 is adjusted so that the limiting rod 6 passes through the second protrusion 9. Finally, the locking sleeve 10 is twisted, and the locking sleeve 10 is fixedly connected and locked to the second connecting collar 7 through threaded engagement, thereby enhancing the connection performance.

[0025] When the locking sleeve 10 is connected to the second connecting collar 7, the locking sleeve 10 will push the push block 13, causing the movable rod 15 to drive the piston block 16 in the air storage cylinder 14 to move outward, thereby squeezing the extrusion rod 17 and the limiting block 18 outward, so that the limiting block 18 and the second protrusion 9 are locked together, preventing the connecting pipe 2 from separating from the three-way pipe body 1;

[0026] This structure allows the T-pipe body 1 to flexibly adjust the connection angle according to the corner angle of the actual installation environment, ensuring installation adaptability. Furthermore, through the multiple threaded connections and the clamping effect of the limiting block 18, the stability and sealing of the connection are significantly improved, effectively preventing the connecting pipe 2 from separating from the T-pipe body 1, thereby improving the efficiency of use.

[0027] The limiting rod 6 has a hollow internal structure. A fixing block 11 is snapped into the limiting rod 6. A tension spring 12 is fixedly connected between the fixing block 11 and the push block 13. The tension spring 12 is located inside the limiting rod 6. The push block 13 has an L-shaped structure. A slot is opened on the outside of the limiting rod 6 to cooperate with the push block 13. An air inlet pipe 19 is connected to the outside of the air storage cylinder 14. The air inlet pipe 19 passes through the limiting rod 6. A one-way air inlet valve is installed inside the air inlet pipe 19. Multiple anti-slip grooves are opened on the outside of the locking sleeve 10.

[0028] Specifically, when using this right-angle tee fitting, the limiting rod 6 has a hollow internal structure, and the fixing block 11 is connected to it through a snap-fit. The tension spring 12 between the fixing block 11 and the L-shaped push block 13 is located inside the limiting rod 6, and the outer side of the limiting rod 6 has a slot to cooperate with the push block 13. When the locking sleeve 10 pushes the push block 13, the push block 13 moves along the slot and stretches the tension spring 12. After the locking operation is completed, the rebound force of the tension spring 12 can assist the push block 13 to reset, which is convenient for subsequent disassembly or adjustment.

[0029] Meanwhile, the air inlet pipe 19 connected to the outside of the air storage cylinder 14 passes through the limiting rod 6. The one-way air inlet valve inside the air inlet pipe 19 can ensure that the air storage cylinder 14 can stably intake air when the piston block 16 moves and squeezes, ensuring that the squeezing rod 17 and the limiting block 18 can effectively pop out and lock the second protrusion 9, enhancing the clamping effect. The multiple anti-slip grooves on the outside of the locking sleeve 10 increase the friction between the hand and the locking sleeve 10, making it easier for the operator to twist the locking sleeve 10 for clamping and fixing with less effort. The overall design ensures clamping reliability through the reset of the tension spring 12 and the one-way air intake of the air inlet pipe 19, and improves the ease of operation with the anti-slip structure, further optimizing the clamping experience of the right-angle tee fitting, ensuring a stable connection and convenient operation.

[0030] The working principle of this utility model is as follows:

[0031] First, the connection and fixation of this right-angle tee fitting is achieved through multiple threaded connections and angle adjustment. First, the first connecting collar 3 is threaded to the tee body 1, and the second connecting collar 7 is threaded to the connecting pipe 2. Then, the connecting pipe 2 is inserted into the tee body 1. By rotating the first rotating ring 4 and the second rotating ring 8, the limiting rod 6 passes through the second protrusion 9 to adjust the connection angle according to the corner angle. Then, the locking sleeve 10 is twisted and threaded to the second connecting collar 7 to complete the initial fixation and enhance the connection performance.

[0032] Secondly, during the connection process between the locking sleeve 10 and the second connecting collar 7, the locking sleeve 10 pushes the push block 13, causing the movable rod 15 to move the piston block 16 inside the air storage cylinder 14, squeezing the internal gas and pushing the squeezing rod 17 and the limiting block 18 outward. The limiting block 18 is locked with the second protrusion 9 to form a mechanical limit, preventing the connecting pipe 2 from separating from the three-way pipe body 1, and further improving the connection stability.

[0033] It is worth mentioning that the tension spring 12 inside the limit rod 6 is stretched when the push block 13 is pushed. After locking, the push block 13 is reset with the help of the rebound force, which facilitates subsequent disassembly or adjustment. At the same time, the air inlet pipe 19 of the air tank 14 ensures stable air intake through a one-way air inlet valve, ensuring that the extrusion rod 17 and the limit block 18 can be effectively ejected and locked, enhancing the clamping reliability.

[0034] Finally, the anti-slip groove on the outer side of the locking sleeve 10 increases the friction of the hand, making it easier for the operator to complete the twisting operation of the locking sleeve 10.

[0035] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A right-angle tee fitting that is easy to clamp, comprising a tee pipe body (1), characterized in that: The inner side of the output end of the three-way pipe body (1) is connected to a connecting pipe (2). The outer side of the output end of the three-way pipe body (1) is connected to a first connecting collar (3) by a thread. A locking sleeve (10) is threaded to the outer side of the first connecting collar (3). A second connecting collar (7) is threaded to the outer side of the connecting pipe (2). The locking sleeve (10) is threaded to the outer side of the second connecting collar (7). A first rotating ring (4) is rotatably connected to one end of the first connecting collar (3). A first protrusion (5) is fixedly connected to the outer side of the first rotating ring (4) in a symmetrical structure. A limit rod (6) is fixedly connected to the inner side of the first protrusion (5). A second rotating ring is rotatably connected to one end of the second connecting collar (7). (8) A second protrusion (9) is fixedly connected to the outer side of the second rotating ring (8) in a symmetrical structure. The limiting rod (6) moves through the second protrusion (9). An air storage cylinder (14) is embedded at the end of the limiting rod (6). Multiple sets of extrusion rods (17) are movably connected to the outer side of the air storage cylinder (14). A limiting block (18) is fixedly connected to the end of the extrusion rod (17). The limiting block (18) is located outside the second protrusion (9). A piston block (16) is slidably connected to the inner side of the air storage cylinder (14). A movable rod (15) is fixedly connected to the outer side of the piston block (16). A push block (13) is connected to the other end of the movable rod (15). The push block (13) is located on one side of the locking sleeve (10).

2. A right-angle tee fitting for easy clamping according to claim 1, characterized in that: The limiting rod (6) has a hollow structure inside. A fixing block (11) is snapped into the inside of the limiting rod (6). A tension spring (12) is fixedly connected between the fixing block (11) and the push block (13). The tension spring (12) is located inside the limiting rod (6).

3. A right-angle tee fitting for easy clamping according to claim 1, characterized in that: The push block (13) has an L-shaped structure, and the outer side of the limiting rod (6) is provided with a slot for use with the push block (13).

4. A right-angle tee fitting for easy clamping according to claim 1, characterized in that: An air inlet pipe (19) is connected to the outside of the air storage cylinder (14). The air inlet pipe (19) passes through the limiting rod (6). A one-way air inlet valve is provided inside the air inlet pipe (19).

5. A right-angle tee fitting for easy clamping according to claim 1, characterized in that: Multiple anti-slip grooves are provided on the outer side of the locking sleeve (10).

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