Three-way pipe fitting

Abstract

An auxiliary pipe is fixedly connected to the middle of the top of a main pipe, the two ends of the main pipe are movably sleeved with first protection pipes, the surface of the auxiliary pipe is movably sleeved with a second protection pipe, and connecting boxes are fixedly connected to the positions, close to the right side, of the front side and the rear side of the outer wall of the first protection pipe on the left side. A fixing assembly is arranged in each connecting box, connecting openings are formed in the top and the bottom of the right side of each connecting box, all the parts are matched with one another, so that the first protection pipe and the second protection pipe are fixed and detached on the main pipe and the auxiliary pipe conveniently, and do not need to enter the pipeline; and the positioning rods are inserted into the connecting holes, so that the clamping grooves are kept horizontally upward, the clamping blocks are arranged in the left-right direction, deviation is avoided, the clamping grooves and the clamping blocks are conveniently aligned in the left-right direction, and the clamping blocks are conveniently and accurately inserted into the clamping grooves.

Description

Technical Field

[0001] This utility model relates to the field of tee fittings technology, and in particular to a tee fitting. Background Technology

[0002] Tee fittings are a type of pipe connector, also known as pipe tees, tee fittings, or tee joints. They are mainly used to change the direction of fluid flow and are used where a branch pipe needs to be inserted into a main pipeline. They can be classified according to pipe diameter. They are generally made of materials such as carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon-bonded asphalt, and PVC. Due to their ease of use, they are widely used in chemical, civil construction, machinery manufacturing, and shipbuilding industries.

[0003] An existing patent (publication number: CN221592124U) discloses a tee fitting, including a tee fitting body. The tee fitting body includes a main pipe and a secondary pipe. The main pipe has a first protective pipe and a second protective pipe inside, and the secondary pipe has a third protective pipe inside. In the process of implementing this solution, the inventors discovered the following problem in the prior art that has not been adequately addressed: the lower end of the mounting screw in the device is located inside the main pipe. If the medium flowing through the main pipe is not a completely fluid or gaseous substance, but contains certain solid particles, these solid particles will become stuck in the threaded grooves on the mounting screw, making it difficult to turn and causing inconvenience in disassembling the device for subsequent maintenance. Utility Model Content

[0004] The purpose of this utility model is to provide a tee fitting to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is a three-way pipe fitting. A secondary pipe is fixedly connected to the middle of the top of the main pipe. First protective pipes are movably sleeved at both ends of the main pipe. Second protective pipes are movably sleeved on the surface of the secondary pipe. Connecting boxes are fixedly connected to the front and rear sides of the outer wall of the first protective pipe on the left side, near the right side. Each connecting box is provided with a fixing component. Connecting openings are provided at the top and bottom of the right side of the connecting box. Connecting blocks are fixedly connected to the front and rear sides of the outer wall of the first protective pipe on the right side, near the right side. Fixing blocks are fixedly connected to the top and bottom of the left side of each connecting block. The left side of the fixing block is inserted into the connecting opening and penetrates into the inner cavity of the connecting box. Slots are provided on the facing surfaces of two opposite fixing blocks. A slot is provided in the middle of the top surface of the inner wall of the two first protective pipes. A locking block is fixedly connected to the left and right sides of the lower end of the outer wall of the second protective pipe. The two locking blocks are respectively inserted into the locking slots on the left and right sides.

[0006] In one embodiment, the fixing assembly includes a bidirectional screw, the bottom bearing of which is connected to the side of the bottom wall of the connecting box away from the first protective tube. The upper end face of the bidirectional screw is threaded with a movable block. The middle of the disengaged surfaces of the two movable blocks is fixedly connected with an insert block. The disengaged sides of the two insert blocks are respectively inserted into adjacent slots. The top of the connecting box has a through hole. The upper end bearing of the bidirectional screw is connected to the through hole and extends through to the top of the connecting box and to the outside. The upper end face of the bidirectional screw is fixedly connected with a torsion handle.

[0007] In one embodiment, the two movable blocks are movably sleeved with a guide rod on the side near the first protective tube, and the upper and lower end faces of the guide rod are fixedly connected to the top and bottom surfaces of the inner wall of the connecting box, respectively.

[0008] In one embodiment, positioning rods are fixedly connected to the left and right sides of the outer wall of the second protective tube, and positioning blocks are fixedly connected to the middle of the top surfaces of the two first protective tubes. The positioning blocks are vertically opposite to the slots, and a connecting hole is opened in the middle of the positioning block. The two positioning rods are respectively movably sleeved in the connecting holes on the left and right sides.

[0009] In one embodiment, each of the two first protective tubes has an arc-shaped opening on its opposite side at the top. The arc-shaped opening is adapted to the second protective tube, and the lower end of the second protective tube is fitted into the arc-shaped opening. The slot is connected to the arc-shaped opening.

[0010] The beneficial effects provided by this utility model are:

[0011] The cooperation between the various components makes it easy to fix and disassemble the first and second protective pipes on the main and auxiliary pipes without entering the pipe. This avoids the difficulty of disassembly due to the influence of the medium flowing in the pipe. The positioning rod is inserted into the connection hole to keep the slot horizontal and the block is set to the left and right to avoid misalignment. This makes it easy for the slot and the block to be aligned left and right, and for the block to be accurately inserted into the slot. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention;

[0013] Figure 2 This is a main sectional view of the connector box;

[0014] Figure 3 This is a side sectional view of the connecting box;

[0015] Figure 4 This is the main sectional view of the fixed block;

[0016] Figure 5 This is an exploded view of the present invention.

[0017] In the attached diagram: 1. Main pipe; 2. Secondary pipe; 3. First protective pipe; 4. Second protective pipe; 5. Connecting box; 6. Fixing assembly; 61. Bidirectional screw; 62. Movable block; 63. Insert block; 64. Torque handle; 65. Guide rod; 7. Connecting opening; 8. Connecting block; 9. Fixing block; 10. Slot; 11. Slot; 12. Locking block; 13. Positioning rod; 14. Positioning block; 15. Connecting hole; 16. Arc-shaped opening. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0019] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0020] In one embodiment, such as Figure 1-5 As shown, a tee fitting has a secondary pipe 2 fixedly connected to the middle of the top of the main pipe 1. Both ends of the main pipe 1 are movably fitted with first protective pipes 3. The surface of the secondary pipe 2 is movably fitted with a second protective pipe 4. Connecting boxes 5 are fixedly connected to the front and rear sides of the outer wall of the left first protective pipe 3 near the right side. Each connecting box 5 is provided with a fixing component 6. Connecting openings 7 are opened at the top and bottom of the right side of the connecting box 5. Connecting blocks 8 are fixedly connected to the front and rear sides of the outer wall of the right first protective pipe 3 near the right side. Fixing blocks 9 are fixedly connected to the top and bottom of the left side of each connecting block 8. The left side of the fixing block 9 is inserted into the connecting opening 7 and penetrates into the inner cavity of the connecting box 5. Slots 10 are opened on the facing surfaces of the two upper and lower fixing blocks 9. Slots 11 are opened in the middle of the top surface of the inner wall of the two first protective pipes 3. Locking blocks 12 are fixedly connected to the left and right sides of the lower end of the outer wall of the second protective pipe 4. The two locking blocks 12 are respectively inserted into the locking slots 11 on the left and right sides.

[0021] To facilitate fixing the fixing block 9 and prevent it from moving to the right, the fixing component 6 includes a bidirectional screw 61. The bottom bearing of the bidirectional screw 61 is connected to the side of the bottom of the inner wall of the connecting box 5 away from the first protective tube 3. The upper end face of the bidirectional screw 61 is threaded with a movable block 62. The middle of the disjoint surfaces of the two movable blocks 62 is fixedly connected with an insert block 63. The disjoint sides of the two insert blocks 63 are respectively inserted into adjacent slots 10. The top of the connecting box 5 has a through hole. The upper end bearing of the bidirectional screw 61 is connected to the through hole and extends through to the top of the connecting box 5 and to the outside. The upper end face of the bidirectional screw 61 is fixedly connected with a torsion handle 64.

[0022] In order to restrict the movable block 62 and prevent it from rotating with the bidirectional screw 61, the two movable blocks 62 are movably sleeved on the side near the first protective tube 3. The upper and lower end faces of the guide rod 65 are fixedly connected to the top and bottom surfaces of the inner wall of the connecting box 5, respectively.

[0023] To facilitate the left and right alignment of the slot 11 and the block 12, positioning rods 13 are fixedly connected to the left and right sides of the outer wall of the second protective tube 4, and positioning blocks 14 are fixedly connected to the middle of the top surface of the two first protective tubes 3. The positioning blocks 14 are vertically opposite to the slot 11, and a connecting hole 15 is opened in the middle of the positioning block 14. The two positioning rods 13 are respectively movably sleeved in the left and right connecting holes 15.

[0024] In order to make the lower end of the second protective tube 4 fit with the top of the two opposing ends of the first protective tubes 3, an arc-shaped opening 16 is provided on the opposite side of the top of the two first protective tubes 3. The arc-shaped opening 16 fits with the second protective tube 4, and the lower end of the second protective tube 4 is fitted into the arc-shaped opening 16. The slot 11 is connected to the arc-shaped opening 16.

[0025] Working Principle: In use, the second protective tube 4 is first fitted onto the secondary tube 2. Then, two first protective tubes 3 are sequentially fitted onto both ends of the main tube 1. When fitting the first protective tubes 3, the connecting hole 15 on the positioning block 14 is aligned with the positioning rod 13. Then, when the first protective tube 3 is pushed, the positioning rod 13 is inserted into the connecting hole 15, keeping the slot 11 horizontally upwards, while the locking block 12 is positioned horizontally to prevent misalignment. This ensures the slot 11 and locking block 12 are aligned horizontally, facilitating precise insertion of the locking block 12 into the slot 11. Next, the first protective tube 3 is pushed, causing it to fit the lower end of the second protective tube 4 through the arc-shaped opening 16. Block 12 is inserted into slot 11 to fix the second protective tube 4, preventing it from moving upward. After the first protective tube 3 is fitted, the fixing block 9 is inserted into the connecting box 5 through the connecting opening 7. Then, the torsion handle 64 is turned to rotate the bidirectional screw 61. The rotation of the bidirectional screw 61 causes the two movable blocks 62 to move apart. The movable blocks 62 drive the insert block 63 to move, so that the insert block 63 is inserted into the slot 10 on the separated side, fixing the fixing block 9. Thus, the two first protective tubes 3 are connected together. The fixing and disassembly of the first protective tube 3 and the second protective tube 4 on the main pipe 1 and the auxiliary pipe 2 are relatively convenient. There is no need to enter the inside of the pipe, so it will not be affected by the medium flowing in the pipe and will not be difficult to disassemble.

[0026] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A tee fitting, characterized in that, The system includes a main tube (1), a secondary tube (2) fixedly connected to the middle of the top of the main tube (1), a first protective tube (3) movably sleeved at both ends of the main tube (1), a second protective tube (4) movably sleeved on the surface of the secondary tube (2), a connecting box (5) fixedly connected to the front and rear sides and near the right side of the outer wall of the first protective tube (3) on the left side, a fixing component (6) provided in each connecting box (5), a connecting opening (7) opened at the top and bottom of the right side of the connecting box (5), and a fixing component (6) fixedly connected to the front and rear sides and near the right side of the outer wall of the first protective tube (3) on the right side. A connecting block (8) is fixedly connected to the top and bottom of the left side of each connecting block (8). The left side of the fixing block (9) is inserted into the connecting opening (7) and extends through the inner cavity of the connecting box (5). Slots (10) are opened on the facing surfaces of the two fixing blocks (9) that are opposite each other. A slot (11) is opened in the middle of the top surface of the inner wall of the two first protective tubes (3). A card block (12) is fixedly connected to the left and right sides of the lower end of the outer wall of the second protective tube (4). The two card blocks (12) are respectively inserted into the slots (11) on the left and right sides.

2. A tee fitting as described in claim 1, characterized in that: The fixing component (6) includes a bidirectional screw (61). The bottom surface of the bidirectional screw (61) is connected to the side of the bottom surface of the inner wall of the connecting box (5) away from the first protective tube (3). The upper end face of the bidirectional screw (61) is threaded with a movable block (62). The middle part of the disjoint surface of the two movable blocks (62) is fixedly connected with a plug (63). The disjoint sides of the two plugs (63) are respectively inserted into adjacent slots (10). The top of the connecting box (5) is provided with a through hole. The upper end bearing of the bidirectional screw (61) is connected in the through hole and extends through to the top of the connecting box (5) and to the outside. The upper end face of the bidirectional screw (61) is fixedly connected with a torsion handle (64).

3. A tee fitting as described in claim 2, characterized in that: The two movable blocks (62) are movably sleeved with guide rods (65) on the side near the first protective tube (3). The upper and lower end faces of the guide rods (65) are fixedly connected to the top and bottom surfaces of the inner wall of the connecting box (5), respectively.

4. A tee fitting as described in claim 1, characterized in that: Positioning rods (13) are fixedly connected to the left and right sides of the outer wall of the second protective tube (4). Positioning blocks (14) are fixedly connected to the middle of the top surface of the two first protective tubes (3). The positioning blocks (14) are vertically opposite to the slots (11). A connecting hole (15) is opened in the middle of the positioning block (14). The two positioning rods (13) are respectively movably sleeved in the connecting holes (15) on the left and right sides.

5. A tee fitting as described in claim 1, characterized in that: Both of the first protective tubes (3) have arc-shaped openings (16) on opposite sides at the top. The arc-shaped openings (16) are adapted to the second protective tubes (4). The lower end of the second protective tubes (4) is fitted into the arc-shaped openings (16). The slots (11) are connected to the arc-shaped openings (16).

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