A tee joint

By using a countersunk hole process to hide the nut or bolt on the tee connector, and utilizing the tightening mechanism of the tapered part and internal thread, the problems of space waste and poor sealing of traditional tee connectors are solved, achieving tight connection and stable ink supply.

CN224414637UActive Publication Date: 2026-06-26SHENZHEN JUYOUYUAN ELECTRONICS TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN JUYOUYUAN ELECTRONICS TECH CO LTD
Filing Date
2025-07-28
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Traditional T-connectors leave the nut or bolt exposed during connection, resulting in wasted space and poor sealing performance. This is especially problematic in inkjet printers where the seals are prone to aging, leading to ink leakage.

Method used

The connecting hole is designed using a countersunk hole process to hide the nut or bolt. The sealing is achieved by tightening the fixed cap and the fixed tube, using the tapered part and internal thread. The friction protrusions are combined to improve the tightening efficiency and ensure the sealing effect.

Benefits of technology

It achieves a tight fit of the three-way connector, reduces space occupation, improves sealing performance, ensures stable operation of the ink supply system, and reduces operation difficulty and leakage risk.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for three -way joint technical field provides a kind of three -way joint, including three -way main body and three joint assemblies, three -way main body front and rear end face is symmetrically provided with connecting hole, and joint assembly includes fixed pipe, connecting pipe, sealing ring and fixed cap, and the one end of sealing ring is provided with conical part, and the outer edge of conical part is contacted with the inner wall of fixed cap;Connecting hole can be completely embedded in counterbore when connecting nut or cap, to complete the hiding of nut or cap, so that the front and rear end face of three -way main body is even, and multiple three -way main bodies can be connected side by side as a whole, and the front and rear end face is closely adhered when side by side connection, reduce the occupied space of three -way joint, suitable for printer internal dense pipeline layout scene;Joint assembly can realize the quick sealing function of three -way joint, improve sealing effect, reduce the operation difficulty, realize the quick and stable connection of ink pipe and three -way joint, ensure the long -term stable operation of ink supply system.
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Description

Technical Field

[0001] This utility model belongs to the field of tee connector technology, and particularly relates to a tee connector. Background Technology

[0002] Inkjet printers, widely used in office, home, and professional image output fields, form text or images by precisely ejecting ink droplets onto the printing medium. An inkjet printer contains an ink pipeline system, which is crucial for ensuring a stable and accurate delivery of ink to the printhead. The ink pipeline tee, as an important connector in the ink pipeline, functions to split and merge ink flows, playing an indispensable role in maintaining normal ink supply to the printer and enabling the coordinated operation of multiple printheads or multiple colors of ink.

[0003] Common inkjet printer ink line tees are mostly made of plastic or metal. Their main structure usually has three connection ports to allow ink to flow separately or together. In terms of connection method, some tee connectors use a simple socket connection method with rubber sealing rings for sealing; others use threaded connections, with nuts or bolts installed at the ports to secure the ink tubes.

[0004] When connecting traditional T-joints, the nut or bolt is usually exposed. This means that when multiple T-joints are connected side by side, the protrusion of the nut or bolt prevents the T-joint bodies from fitting tightly together. In situations where the internal space of a printer is limited and the piping layout is dense, this greatly wastes space resources and increases the difficulty of piping arrangement. Furthermore, relying solely on the rubber sealing ring for connection is prone to aging and deformation of the sealing ring during long-term use of the printer due to factors such as ink corrosion and mechanical vibration, resulting in decreased sealing performance and ink leakage.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a tee connector to overcome the shortcomings in current practical applications. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model embodiment is to provide a tee connector to solve the problems in the background technology mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A tee connector includes a tee body, wherein symmetrical connecting holes are provided on the front and rear end faces of the tee body, and the connecting holes are made using a countersunk hole process;

[0009] The tee body has three connector assemblies distributed on its upper, lower, left, and right end faces. Each connector assembly includes a fixed pipe, a connecting pipe, a sealing ring, and a fixing cap. The connecting pipes are distributed on the upper, lower, front, and rear end faces of the tee body, and the three connecting pipes are interconnected. The fixed pipe is located outside the connecting pipe and is fixedly connected to the outer wall of the tee body. One end of the sealing ring abuts against the outer edge of one end of the fixed pipe, and the other end of the sealing ring abuts against the inner wall of the fixing cap. The fixing cap is threadedly connected to the fixed pipe. The other end of the sealing ring is provided with a tapered portion, and the outer edge of the tapered portion contacts the inner wall of the fixing cap.

[0010] As a further technical solution of this utility model, the front end of the inner wall of the fixing cap is provided with an internal thread that matches the external thread, and the internal thread matches the external thread on the outer wall of the fixing tube.

[0011] As a further technical solution of this utility model, the rear end of the inner wall of the fixing cap is provided with an inner step, the inner diameter of the inner step is smaller than the outer diameter of the conical part, and the side wall of the inner step is in contact with the outer edge of the conical part.

[0012] As a further technical solution of this utility model, friction protrusions are axially distributed on the outer wall of the fixing cap.

[0013] As a further technical solution of this utility model, the main body of the tee is a flat cube, and multiple tee bodies are arranged side by side in sequence and fixed in batches by bolts passing through the connecting holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The front and rear ends of the tee body are symmetrically provided with connecting holes that connect the front and rear ends. The connecting holes preferably adopt a countersunk hole process. This structure can completely embed the nut or bolt into the countersunk hole during connection, thereby completing the concealment of the nut or bolt and making the front and rear ends of the tee body flat. This allows multiple tee bodies to be connected side by side as a whole, and the front and rear ends fit tightly when connected side by side, reducing the space occupied by the tee connector. It is suitable for scenarios with dense pipeline layout inside the printer.

[0016] The fixing cap can be tightened on the fixing tube by rotation. During this process, the inner wall of the fixing cap abuts against the outer edge of the conical part, causing the fixing cap to push the conical part and making the outer wall of the conical part increasingly tighter with the outer edge of the fixing tube. The number of turns of the fixing cap directly determines the tightness between the sealing ring and the fixing tube, and thus directly determines the sealing effect of the tee connector. This achieves the quick sealing function of the tee connector, reduces the difficulty of operation, and enables a quick and stable connection between the ink tube and the tee connector, ensuring the long-term stable operation of the ink supply system.

[0017] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the tee connector provided in an embodiment of the present utility model.

[0019] Figure 2 An exploded view of the structure of the tee connector provided in the embodiment of this utility model.

[0020] Figure 3 for Figure 2 A schematic diagram of the locking tube.

[0021] Figure 4 This is a schematic diagram of the structure of the three-way connectors connected side by side according to an embodiment of the present utility model.

[0022] Reference numerals: 1-Tee body, 2-Connector assembly, 21-Fixing pipe, 22-Connecting pipe, 23-Sealing ring, 24-Fixing cap, 25-Tapered part, 26-Internal thread, 27-Internal step, 3-Connecting hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] like Figures 1 to 4 As shown, a tee connector provided as an embodiment of this utility model includes a tee body 1. The front and rear end faces of the tee body 1 are symmetrically provided with connecting holes 3 that are connected front and rear. The connecting holes 3 preferably adopt a countersunk hole process. This structure can completely embed the nut or bolt during connection into the countersunk hole, thereby completing the concealment of the nut or bolt, making the front and rear end faces of the tee body 1 flat. This allows multiple tee bodies 1 to be connected side by side as a whole, and the front and rear end faces fit tightly when connected side by side, reducing the space occupied by the tee connector. It is suitable for dense pipeline layout scenarios inside printers.

[0026] Three connector assemblies 2 are distributed on the upper, lower, left, and right end faces of the tee body 1. Each connector assembly 2 includes a fixing pipe 21, a connecting pipe 22, a sealing ring 23, and a fixing cap 24. The connecting pipes 22 are distributed on the upper, lower, front, and rear end faces of the tee body 1, and the three connecting pipes 22 are interconnected. The fixing pipe 21 is located outside the connecting pipe 22 and is fixedly connected to the outer wall of the tee body 1. One end of the sealing ring 23 abuts against the outer edge of one end of the fixing pipe 21, and the other end of the sealing ring 23 abuts against the inner wall of the fixing cap 24. The fixing cap 24 is threadedly connected to the fixing pipe 21. A tapered portion 25 is provided on the other end of the sealing ring 23. The outer edge of the tapered portion 25 contacts the inner wall of the fixing cap 24. The fixing cap 24 can be tightened on the fixing tube 21 by rotation. During this process, the inner wall of the fixing cap 24 abuts against the outer edge of the tapered portion 25, causing the fixing cap 24 to push the tapered portion 25 and making the outer wall of the tapered portion 25 increasingly tighter with the outer edge of the fixing tube 21. The number of turns of the fixing cap 24 directly determines the tightness between the sealing ring 23 and the fixing tube 21, and thus directly determines the sealing effect of the tee connector. This achieves the quick sealing function of the tee connector, reduces the difficulty of operation, and enables a quick and stable connection between the ink tube and the tee connector, ensuring the long-term stable operation of the ink supply system.

[0027] like Figure 2 and Figure 3 As shown, in a preferred embodiment of the present invention, the front end of the inner wall of the fixing cap 24 is provided with an internal thread 26 that mates with the external thread, and the internal thread 26 mates with the external thread on the outer wall of the fixing tube 21.

[0028] like Figure 2 and Figure 3 As shown, in a preferred embodiment of the present invention, the rear end of the inner wall of the fixing cap 24 is provided with an inner step 27, the inner diameter of the inner step 27 is smaller than the outer diameter of the tapered part 25, and the side wall of the inner step 27 is in contact with the outer edge of the tapered part 25.

[0029] like Figure 2 and Figure 3 As shown, in a preferred embodiment of this utility model, friction protrusions are axially distributed on the outer wall of the fixing cap 24. This increases the friction between the operator or tool and the fixing cap 24, thereby enabling effective and rapid screwing of the fixing cap 24. Even in the narrow space inside the printer, single-finger screwing operation can be achieved. This makes the operation performance of the fixing cap 24 fully adaptable to the pipeline assembly requirements of inkjet printers, improving the assembly efficiency of the production line and providing reliable protection for end-user maintenance operations.

[0030] like Figures 1 to 4As shown, in a preferred embodiment of the present invention, the tee body 1 is a flat cube, and multiple tee bodies 1 are arranged side by side and fixed in batches by bolts passing through the connecting holes 3. This not only enables the rapid assembly of multiple tee bodies 1, but also simplifies the fixing steps of multiple tee bodies 1, reduces assembly time, and improves the practicality and convenience of the tee connector.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tee joint, characterized in that The device includes a three-way body, and the front and rear end faces of the three-way body are symmetrically provided with connecting holes that connect the front and rear ends. The connecting holes are made using a countersunk hole process. The tee body has three connector assemblies distributed on its upper, lower, left, and right end faces. Each connector assembly includes a fixed pipe, a connecting pipe, a sealing ring, and a fixing cap. The connecting pipes are distributed on the upper, lower, front, and rear end faces of the tee body, and the three connecting pipes are interconnected. The fixed pipe is located outside the connecting pipe and is fixedly connected to the outer wall of the tee body. One end of the sealing ring abuts against the outer edge of one end of the fixed pipe, and the other end of the sealing ring abuts against the inner wall of the fixing cap. The fixing cap is threadedly connected to the fixed pipe. The other end of the sealing ring is provided with a tapered portion, and the outer edge of the tapered portion contacts the inner wall of the fixing cap.

2. The tee joint of claim 1, wherein, The front end of the inner wall of the fixing cap is provided with an internal thread that mates with the external thread, and the internal thread mates with the external thread on the outer wall of the fixing tube.

3. The tee connector according to claim 2, characterized in that, The inner wall of the fixing cap has an inner step at its rear end. The inner diameter of the inner step is smaller than the outer diameter of the tapered part, and the side wall of the inner step is in contact with the outer edge of the tapered part.

4. The tee connector according to claim 3, characterized in that, Friction protrusions are axially distributed on the outer wall of the fixing cap.

5. The tee connector according to claim 1, characterized in that, The main body of the tee is a flat cube, and multiple tee bodies are arranged side by side and fixed in batches by bolts passing through the connecting holes.