Fabricated reducing tee
By using a modular design for the positioning components and a split connection structure, the problems of inconvenient replacement and poor applicability of existing tee pipe fittings have been solved, enabling flexible replacement and improved sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI NANQUAN HUXIU PLASTIC FACTORY
- Filing Date
- 2025-09-23
- Publication Date
- 2026-07-14
AI Technical Summary
Most existing tee pipe fittings are integrally welded, and when one of the fittings is damaged, the whole set needs to be replaced, which wastes resources. In addition, the pipe diameter is inconsistent and cannot be connected to pipes with larger diameters.
The design adopts a modular approach, with a positioning component consisting of a positioning block and a compression spring at the rear end of the connector. The connector and the connector are separate structures. The inner wall of the connector has a sealing gasket groove, and the positioning block can be inserted into the positioning groove on the outside of the connecting pipe. The inner wall of the connector has internal threads to accommodate external pipes with different outer diameters and thread standards.
It enables flexible replacement of connectors and improves sealing performance, adapting to external pipe connections of different diameters, reducing waste and increasing applicability.
Smart Images
Figure CN224497906U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tee fitting technology, and in particular to an assembled reducing tee fitting. Background Technology
[0002] T-joints are mainly used to change the direction of fluid flow, and are used where a branch pipe needs to be installed on a main pipeline. They can be classified according to pipe diameter and are generally made of materials such as carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon-bonded asphalt, and PVC.
[0003] For example, patent number CN221171276U discloses a sealed welded tee pipe joint. By bonding a second elastic rubber ring to the inner wall of the connector, inserting a first elastic rubber ring into the connector seat, and connecting the pipe and the tee pipe joint body, the first elastic rubber ring is positioned between the connector seat and the pipe. The connector is then screwed onto the outside of the connector seat. As the connector and the connector seat gradually connect, the first and second accommodating spaces gradually decrease. Since both the first and second elastic rubber rings have a certain degree of elasticity and their shapes are adapted to the first and second accommodating spaces respectively, the shrinking space causes the first and second elastic rubber rings to be compressed and deformed. The first and second elastic rubber rings completely fill the first and second accommodating spaces respectively. The structure is simple and the sealing effect is good.
[0004] For example, patent number CN205618876U discloses a tee connector. The tee connector has a simple structure and can be better matched with pliers to tighten the connector. At the same time, the flat layer can also act as a reinforcing rib to improve the structural strength of the tee connector.
[0005] However, most existing tee fittings are integrally welded. When one of the fittings is damaged, the entire fitting needs to be replaced, which is wasteful. Since the pipe diameters of the tee fittings are all the same, if one of the external pipes has a larger diameter, the tee fitting cannot be connected to it, resulting in poor applicability. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides an assembled reducing tee fitting, which solves the problems of existing tee fittings, most of which are integrally welded, requiring the entire fitting to be replaced when one of the fittings is damaged, which is wasteful; and the tee fittings have uniform pipe diameters, but if one of the external pipes has a larger diameter, the tee fitting cannot be connected to it, resulting in poor applicability.
[0007] The technical solution of this utility model is as follows: an assembled reducing tee pipe fitting, comprising a fitting body, with connecting pipes at both ends of the fitting body, a connecting seat movably connected to one end of each connecting pipe, a positioning component at the rear end of the connecting seat for connecting the connecting seat and the connecting pipe, a connecting head fixedly connected to the front end of the connecting seat, and a connecting component on the inner wall of the connecting seat for connecting the connecting seat and the connecting head; the positioning component includes a positioning block, which is movably connected to the connecting seat, with one end of the positioning block located outside the connecting pipe. The connector is equipped with a positioning groove. When the connector slides to the end of the connecting pipe, one end of the positioning block is engaged in the inner side of the positioning groove. The connecting assembly includes a knob, the output end of which is fixedly connected to a transmission gear A. One end of the transmission gear A is rotatably connected to a transmission ring. The outer side of the transmission ring is rotatably connected to a transmission gear B. One end of the transmission gear B is rotatably connected to a rack. The bottom end of the rack is provided with a limit block. When the connector is connected to the connector head, the knob drives the transmission gear A to rotate. The transmission gear A, in conjunction with the transmission ring, transmission rod, and rack, drives the limit block to engage in the outer side of the connector head.
[0008] Preferably, a sealing groove is provided at the center of the inner wall of the connector. When the connector slides to the end of the connecting pipe, the sealing groove can simply limit the sealing gasket.
[0009] Preferably, the rear end of the connector is provided with a mounting block, one end of which is located on the outside of the connector seat and is provided with a mounting groove. The mounting block and the mounting groove have the same shape. When the connector is connected to the connector seat, one end of the mounting block extends to the inside of the mounting groove. The inner wall of the connector is provided with an internal thread, and the connector can be connected to an external pipe by engaging the internal thread.
[0010] Preferably, a limiting groove is provided on the outer side of the mounting block. When the mounting block is inserted into the inner side of the mounting groove, the knob drives the transmission gear A to rotate. The transmission gear A, in conjunction with the transmission ring, transmission rod and rack, drives the limiting block to engage with the inner side of the mounting block.
[0011] Preferably, there are four limit blocks, and the number of transmission rods is the same as the number of limit blocks, with each transmission rod corresponding to a limit block.
[0012] Preferably, both ends of the transmission rod are provided with transmission gears B. The transmission rod meshes with the transmission ring and the rack respectively through the transmission gears B. When the transmission rod rotates, the transmission rod, in conjunction with the transmission gears B, drives the transmission ring and the rack to perform transmission.
[0013] Preferably, a movable groove is provided on the outer side of one end of the connecting seat, and one end of the positioning block extends to the inner side of the movable groove. A compression spring is fixedly connected to the inner wall of the movable groove. When the connecting seat slides to the end of the connecting pipe, the positioning block cooperates with the compression spring to be inserted into the inner side of the positioning groove on the outer side of the connecting pipe.
[0014] The beneficial effects of this utility model are:
[0015] This prefabricated reducing tee fitting features a positioning component consisting of a positioning block and a compression spring at the rear end of the connector. When the connector slides to the end of the connecting pipe, the positioning block automatically engages with the positioning groove on the outside of the connecting pipe. The inner wall of the connector has a sealing gasket groove, which effectively limits the sealing gasket and prevents the seal from shifting or falling off during installation. Furthermore, the connector and the fitting head are designed as separate units, allowing the fitting head to be flexibly replaced according to different outer diameters or thread standards of external pipes. With the internal thread, it can be adapted to various pipe fitting interfaces. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural representation of this utility model. Figure 1 ;
[0017] Figure 2 The diagram shown is a three-dimensional structural representation of this utility model. Figure 2 ;
[0018] Figure 3 The diagram shown is a structural schematic of the connector of this utility model.
[0019] Figure 4 The diagram shown is a structural schematic of the connector of this utility model;
[0020] Figure 5 The diagram shown is a schematic representation of the internal structure of the connector of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Connector body; 2. Connecting pipe; 3. Connecting seat; 4. Connecting head; 5. Knob; 6. Positioning block; 7. Movable groove; 8. Compression spring; 9. Mounting groove; 10. Limiting block; 11. Internal thread; 12. Transmission gear A; 13. Transmission ring; 14. Transmission rod; 15. Transmission gear B; 16. Rack; 17. Mounting block; 18. Sealing gasket groove. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-5This utility model provides an embodiment: an assembled reducing tee pipe fitting, including a fitting body 1, with connecting pipes 2 at both ends of the fitting body 1. A connecting seat 3 is movably connected to one end of each connecting pipe 2. A positioning component is provided at the rear end of the connecting seat 3, used for connecting the connecting seat 3 and the connecting pipe 2. A connecting head 4 is fixedly connected to the front end of the connecting seat 3. A connecting component is provided on the inner wall of the connecting seat 3, used for connecting the connecting seat 3 and the connecting head 4. The positioning component includes a positioning block 6, which is movably connected to the connecting seat 3. One end of the positioning block 6 has a positioning groove on the outside of the connecting pipe 2. When the connecting seat 3 slides to the end of the connecting pipe 2, one end of the positioning block 6 engages with the inside of the positioning groove. The connecting component includes a knob 5, which is a self-locking knob (according to CN209874705U, a self-locking type...). The knob structure, through the interaction of the knob and the sliding buckle, allows the locking block above it to rotate by a corresponding angle for each rotation of the knob, thereby locking the product. Furthermore, the cooperation of the first and second locking slides ensures the knob remains locked in a specific position, preventing accidental unlocking and providing a good user experience. A transmission gear A12 is fixedly connected to the output end of the knob 5. One end of the transmission gear A12 is rotatably connected to a transmission ring 13. A transmission gear B15 is rotatably connected to the outer side of the transmission ring 13. One end of the transmission gear B15 is rotatably connected to a rack 16. A limit block 10 is provided at the bottom end of the rack 16. When the connecting seat 3 is connected to the connecting head 4, the knob 5 drives the transmission gear A12 to rotate. The transmission gear A12, in conjunction with the transmission ring 13, transmission rod 14, and rack 16, causes the limit block 10 to engage with the outer side of the connecting head 4.
[0024] Please see Figures 2-3 In this embodiment, a sealing gasket groove 18 is provided at the center of the inner wall of the connecting seat 3. When the connecting seat 3 slides to the end of the connecting pipe 2, the sealing gasket groove 18 can simply limit the sealing gasket. The rear end of the connector 4 is provided with an installation block 17. One end of the installation block 17 is located on the outside of the connecting seat 3 and is provided with an installation groove 9. The installation block 17 and the installation groove 9 have the same shape. When the connector 4 is connected to the connecting seat 3, one end of the installation block 17 extends to the inside of the installation groove 9. A limiting groove is provided on the outside of the installation block 17. When the installation block 17 is inserted into the inside of the installation groove 9, the knob 5 drives the transmission gear A12 to rotate. The transmission gear A12, together with the transmission ring 13, the transmission rod 14 and the rack 16, drives the limiting block 10 to be inserted into the inside of the installation block 17. The inner wall of the connector 4 is provided with an internal thread 11. The connector 4 can be connected to the external pipe by cooperating with the internal thread 11.
[0025] Please see Figures 4-5In this embodiment, four limit blocks 10 are provided, and the number of transmission rods 14 is the same as that of limit blocks 10. Each transmission rod 14 corresponds to one limit block 10. Both ends of the transmission rod 14 are provided with transmission gears B15. The transmission rod 14 meshes with the transmission ring 13 and the rack 16 through the transmission gears B15. When the transmission rod 14 rotates, the transmission rod 14, in conjunction with the transmission gears B15, drives the transmission ring 13 and the rack 16 to perform transmission. A movable groove 7 is provided on the outer side of one end of the connecting seat 3. One end of the positioning block 6 extends to the inner side of the movable groove 7. A compression spring 8 is fixedly connected to the inner wall of the movable groove 7. When the connecting seat 3 slides to the end of the connecting pipe 2, the positioning block 6, in conjunction with the compression spring 8, is engaged with the inner side of the positioning groove on the outer side of the connecting pipe 2.
[0026] During operation, place the connector body 1 in a suitable position, then slide one end of the connector body 1 to connect to the connecting seat 3 on the outside of the connecting pipe 2. When the connecting seat 3 slides to the end of the connecting pipe 2, the positioning block 6 at the rear end of the connecting seat 3, in conjunction with the compression spring 8, engages with the inner side of the positioning groove on the outside of the connecting pipe 2, facilitating the fixation of the connecting seat 3 and the connecting pipe 2. The sealing gasket groove 18 on the inner wall of the connecting seat 3, in conjunction with the connecting pipe 2, can provide simple limiting for the sealing gasket, facilitating the installation between the connecting pipe 2 and the sealing gasket. Then, insert the connector 4 into one end of the connecting seat 3 and rotate the knob 5. 5 drives the transmission gear A12 to rotate. The transmission gear A12, together with the transmission ring 13, transmission rod 14 and rack 16, drives the limiting block 10 to engage with the outside of the connector 4, which facilitates the connection between the connector 3 and the connector 4. After the connector 4 is connected to the connector 3, the sealing gasket can be squeezed to improve the sealing performance of the device. The inner wall of the connector 4 is provided with internal thread 11. The connector 4 can be connected to the external pipe by engaging the internal thread 11. The connector 3 and the connector 4 are separate structures, and the connector 4 can be replaced according to the pipe diameter, which improves the applicability of the device.
[0027] Compared to the prior art document CN221171276U, a sealed welded tee pipe fitting, this method involves bonding a second elastic rubber ring to the inner wall of the connector, inserting a first elastic rubber ring into the connector seat, and connecting the pipe and the tee pipe fitting body. The first elastic rubber ring is positioned between the connector seat and the pipe. The connector is then screwed onto the outside of the connector seat. The reduced space causes the first and second elastic rubber rings to deform under pressure, completely filling the first and second accommodating spaces respectively. This method has a simple structure and good sealing effect. Also, CN205618876U describes a tee fitting with a tee... The connector has a simple structure, which allows for better cooperation with pliers for tightening. The flat layer also acts as a reinforcing rib, improving the structural strength of the tee connector. This application features a positioning component consisting of a positioning block and a compression spring at the rear end of the connector seat. When the connector seat slides to the end of the connecting pipe, the positioning block automatically engages with the positioning groove on the outside of the connecting pipe. The inner wall of the connector seat has a sealing gasket groove, which effectively limits the sealing gasket and prevents the seal from shifting or falling off during installation. Furthermore, the connector seat and connector are designed as separate units, allowing the connector to be flexibly replaced according to different outer diameters or thread standards of external pipes. With the internal thread, it can be adapted to various pipe fitting interfaces.
[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An assembled reducing tee pipe fitting, comprising a fitting body (1), characterized in that: Both ends of the connector body (1) are provided with connecting pipes (2). One end of the connecting pipe (2) is provided with a movably connected connecting seat (3). The rear end of the connecting seat (3) is provided with a positioning component. The positioning component is used to connect the connecting seat (3) and the connecting pipe (2). The front end of the connecting seat (3) is fixedly connected with a connector head (4). The inner wall of the connecting seat (3) is provided with a connecting component. The connecting component is used to connect the connecting seat (3) and the connector head (4). The positioning component includes a positioning block (6), which is movably connected to the connecting seat (3). One end of the positioning block (6) is located on the outside of the connecting pipe (2) and has a positioning groove. When the connecting seat (3) slides to the end of the connecting pipe (2), one end of the positioning block (6) is inserted into the inside of the positioning groove. The connecting assembly includes a knob (5), the output end of which is fixedly connected to a transmission gear A (12), one end of which is rotatably connected to a transmission ring (13), the outer side of which is rotatably connected to a transmission gear B (15), one end of which is rotatably connected to a rack (16), and the bottom end of the rack (16) is provided with a limit block (10). When the connecting seat (3) is connected to the connecting head (4), the knob (5) drives the transmission gear A (12) to rotate, and the transmission gear A (12) cooperates with the transmission ring (13), the transmission rod (14) and the rack (16) to drive the limit block (10) to be inserted into the outer side of the connecting head (4).
2. The assembled reducing tee pipe fitting according to claim 1, characterized in that: A sealing groove (18) is provided at the center of the inner wall of the connecting seat (3). When the connecting seat (3) slides to the end of the connecting pipe (2), the sealing groove (18) can simply limit the sealing gasket.
3. The assembled reducing tee pipe fitting according to claim 1, characterized in that: The rear end of the connector (4) is provided with a mounting block (17). One end of the mounting block (17) is located on the outside of the connector (3) and is provided with a mounting groove (9). The mounting block (17) and the mounting groove (9) are identical in shape. When the connector (4) is connected to the connector (3), one end of the mounting block (17) extends to the inside of the mounting groove (9). The inner wall of the connector (4) is provided with an internal thread (11). The connector (4) can be connected to an external pipe by cooperating with the internal thread (11).
4. The assembled reducing tee pipe joint according to claim 3, characterized in that: A limiting groove is provided on the outer side of the mounting block (17). When the mounting block (17) is inserted into the inner side of the mounting groove (9), the knob (5) drives the transmission gear A (12) to rotate. The transmission gear A (12) cooperates with the transmission ring (13), the transmission rod (14) and the rack (16) to drive the limiting block (10) to be inserted into the inner side of the mounting block (17).
5. The assembled reducing tee pipe fitting according to claim 1, characterized in that: There are four limit blocks (10), and the number of transmission rods (14) is the same as that of limit blocks (10). The transmission rods (14) correspond one-to-one with the limit blocks (10).
6. The assembled reducing tee pipe fitting according to claim 1, characterized in that: Both ends of the transmission rod (14) are equipped with transmission gears B (15). The transmission rod (14) meshes with the transmission ring (13) and the rack (16) respectively through the transmission gears B (15). When the transmission rod (14) rotates, the transmission rod (14) cooperates with the transmission gears B (15) to drive the transmission ring (13) and the rack (16) to perform transmission.
7. The assembled reducing tee pipe fitting according to claim 1, characterized in that: A movable groove (7) is provided on the outer side of one end of the connecting seat (3). One end of the positioning block (6) extends to the inner side of the movable groove (7). A compression spring (8) is fixedly connected to the inner wall of the movable groove (7). When the connecting seat (3) slides to the end of the connecting pipe (2), the positioning block (6) cooperates with the compression spring (8) to be inserted into the inner side of the positioning groove on the outer side of the connecting pipe (2).