Three-way connector

Abstract

The utility model relates to the technical field of fluid tee joints, in particular to a tee joint which comprises a first end, a second end and a third end, an assembly part is installed at the third end, a one-way valve is installed between the interior of the third end and the assembly part in a limiting mode, an inlet of the one-way valve is communicated with the third end, and an outlet of the one-way valve is communicated with the first end and the second end. Or the inlet of the one-way valve communicates with the first end and the second end, and the outlet communicates with the third end. The device is simpler in structure, fewer parts are used, and due to the fact that the one-way valve is integrated in the three-way connector, no part of extra pipeline is added, and when the pipeline is flushed through fluid, sanitation dead angles are fewer.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid tees, in particular to a tee joint. Background Art

[0002] The tee joint is a key fitting in the piping system, mainly used to realize the diversion, merging or change of flow direction of the fluid, improve the flexibility of the system, and facilitate maintenance and adjustment of flow pressure.

[0003] In a fluid mixing flow path, in order to prevent one fluid from entering another fluid through a three-way joint, a one-way valve is installed at one end of the three-way joint in the prior art to prevent the fluid from flowing back. However, since the one-way valve is installed separately at one end of the three-way valve, it is difficult to clean the flow path with the one-way valve when cleaning the flow path.

[0004] For example, when two fluids are mixed, if the back pressure in the mixing pipeline is greater than that in the branch, one fluid or mixed fluid may enter the branch. Generally, a one-way valve is added to prevent liquid backflow, but in this case, a branch pipeline is added. When the pipeline has hygienic cleaning requirements, the cleaning dead corner area is bound to be increased. Utility Model Content

[0005] The utility model aims to solve the problems pointed out in the background technology and provides a three-way joint.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A three-way connector comprises a first end, a second end and a third end, wherein the third end is provided with an assembly part, a one-way valve is provided between the third end and the assembly part, an inlet of the one-way valve is connected to the third end, and an outlet is connected to the first end and the second end; or the inlet of the one-way valve is connected to the first end and the second end, and the outlet is connected to the third end.

[0008] The assembly part includes a threaded barrel, the three-way joint is located inside the third end and has an internal thread, the threaded barrel is threadedly connected to the internal thread, and the one-way valve is at least partially sandwiched between the inner wall of the third end and the end of the threaded barrel.

[0009] The one-way valve comprises a main body, an inlet end of the main body is provided with a convex ring, and the convex ring is limited between the end of the threaded barrel and the inner wall of the third end.

[0010] The three-way joint has a stepped groove inside the third end, and the convex ring is located in the stepped groove.

[0011] The one-way valve is a duckbill valve, and the one-way valve comprises a main body, an inlet end of the main body is integrally formed with a convex ring, and an outlet end of the main body is integrally formed with a fluid discharge slot.

[0012] A direction along a line connecting the first end and the second end is defined as a first direction, and a length direction of the fluid discharge slot is arranged along the first direction.

[0013] The three-way joint has a stepped groove inside the third end, the convex ring is located in the stepped groove, the height of the convex ring is higher than the depth of the stepped groove, and the end of the threaded barrel portion squeezes the top surface of the convex ring.

[0014] The three-way connector includes a first connector portion, the first connector portion can be connected to an external device, and the first connector portion is fixedly connected to or integrally formed with the first end;

[0015] And / or the three-way connector includes a second connector portion, the second connector portion can be connected to an external device, and the second connector portion is fixedly connected to or integrally formed with the second end;

[0016] And / or the three-way joint includes a third joint portion, the third joint portion can be connected to an external device, and the second joint portion is fixedly connected to or integrally formed with the assembly part.

[0017] The assembly part has a polygonal outer peripheral surface.

[0018] The three-way joint proposed by the utility model has the beneficial effects of: the structure of the device is simpler, fewer parts are used, and because the one-way valve is integrated inside the three-way joint, no additional pipeline is added, so that when the pipeline is flushed by fluid, there are fewer sanitary dead corners. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of a half-section structure of the utility model;

[0021] Figure 3 It is a schematic diagram of a half-cut three-dimensional structure of the utility model;

[0022] Figure 4 It is a partial structural schematic diagram of the three-way valve of the utility model;

[0023] Figure 5 This is a schematic diagram of the one-way valve structure of the utility model;

[0024] Figure 6 It is a schematic diagram of the reverse installation structure of the one-way valve of the utility model.

[0025] In the figure: a first end 1, a second end 2, a third end 3, an assembly part 4, a polygonal outer peripheral surface 41, a one-way valve 5, a first joint part 6, a second joint part 7, a third joint part 8, a threaded barrel part 9, an internal thread 10, a stepped groove 11, a convex ring 12, a main body part 13, and a fluid discharge slit 14. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Reference Figure 1-6 A three-way connector comprises a first end 1, a second end 2, and a third end 3, wherein an assembly part 4 is installed on the third end 3, and a one-way valve 5 is installed between the inside of the third end 3 and the assembly part 4, wherein the inlet of the one-way valve 5 is connected to the third end 3, and the outlet is connected to the first end 1 and the second end 2; or the inlet of the one-way valve 5 is connected to the first end 1 and the second end 2, and the outlet is connected to the third end 3.

[0028] refer to Figure 1 , Figure 2 , Figure 6 In this device, the one-way valve 5 is directly assembled inside the third end 3 of the three-way joint through the assembly part 4. Compared with the traditional three-way joint with an additional one-way valve, the three-way valve with integrated one-way valve has a simpler structure and uses fewer parts. In addition, since the one-way valve 5 is integrated inside the three-way joint, no additional pipeline is required, so that when the pipeline is flushed with fluid, there are fewer sanitary dead corners.

[0029] refer to Figure 2 , Figure 3 The assembly part 4 includes a threaded barrel 9, and the three-way joint is located inside the third end 3 and has an internal thread 10. The threaded barrel 9 is threadedly connected to the internal thread 10. The one-way valve 5 is at least partially sandwiched between the inner wall of the third end 3 and the end of the threaded barrel 9. The assembly part 4 is installed on the three-way joint by means of threads. This method is relatively simple to install and disassemble, and it is more convenient to assemble and repair the one-way valve.

[0030] As an embodiment, the one-way valve 5 includes a main body 13, and the inlet end of the main body 13 has a convex ring 12, the convex ring 12 is limited between the end of the threaded barrel 9 and the inner wall of the third end 3, and the convex ring 12 is clamped by the end of the threaded barrel 9 and the inner wall of the third end 3, and the sealing effect of the one-way valve 5 and the three-way joint is achieved by the clamping effect.

[0031] In order to improve the convenience and sealing of assembly, refer to Figure 3 , Figure 4The three-way joint has a stepped groove 11 inside the third end 3 , and the convex ring 12 is located in the stepped groove 11 .

[0032] The one-way valve 5 is a duckbill valve. As an embodiment, the duckbill valve is made of rubber, food-grade silicone, etc. The one-way valve 5 includes a main body 13, an inlet end of the main body 13 is integrally formed with a convex ring 12, and an outlet end of the main body 13 is integrally formed with a fluid discharge slot 14.

[0033] The one-way valve 5 is a duckbill valve, and the three-way joint is located inside the third end 3 and has a stepped groove 11, and the convex ring 12 is located in the stepped groove 11, and the height of the convex ring 12 is higher than the depth of the stepped groove 11, and the end of the threaded barrel 9 squeezes the top surface of the convex ring 12. The convex ring 12 is clamped by the joint action of the threaded barrel 9 and the stepped groove 11, which plays a role of fixing and sealing.

[0034] As an implementation mode, the direction along the line connecting the first end 1 and the second end 2 is defined as the first direction, and the length direction of the fluid discharge slit 14 is set along the first direction. When the fluid passes through the first end 1 and the second end 2, the fluid movement direction is parallel to the setting direction of the fluid discharge slit 14, so that the fluid has less impact on the one-way valve 5, which is beneficial to extending the service life of the duckbill valve.

[0035] The three-way connector includes a first connector portion 6, which can be connected to an external device, and the first connector portion 6 is fixedly connected to or integrally formed with the first end 1;

[0036] and / or the three-way connector includes a second connector portion 7, the second connector portion 7 can be connected to an external device, and the second connector portion 7 is fixedly connected to or integrally formed with the second end 2;

[0037] And / or the three-way joint includes a third joint part 8, the third joint part 8 can be connected to an external device, and the second joint part 7 is fixedly connected to the assembly part 4 or formed in one piece.

[0038] Install the connector parts on each end of the tee connector to facilitate connection to the equipment piping system.

[0039] The assembly part 4 has a polygonal outer peripheral surface 41, referring to Figure 1 , for example, a hexagonal shape is used, which makes it convenient to fix the assembly part 4 on the three-way joint by a wrench or hand tightening.

[0040] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technical solution, concept, and design obtained by equivalent replacement or change based on the technical solution and utility model concept of the utility model by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model.

Claims

1. A three-way connector, comprising a first end (1), a second end (2), and a third end (3), characterized in that: The third end (3) is installed with an assembly part (4), and a one-way valve (5) is installed between the inside of the third end (3) and the assembly part (4) in a limit position, wherein the inlet of the one-way valve (5) is connected to the third end (3), and the outlet is connected to the first end (1) and the second end (2); or the inlet of the one-way valve (5) is connected to the first end (1) and the second end (2), and the outlet is connected to the third end (3).

2. A three-way connector according to claim 1, characterized in that: The assembly part (4) comprises a threaded barrel (9), the three-way joint is located inside the third end (3) and has an internal thread (10), the threaded barrel (9) is threadedly connected to the internal thread (10), and the one-way valve (5) is at least partially sandwiched between the inner wall of the third end (3) and the end of the threaded barrel (9).

3. A three-way connector according to claim 2, characterized in that: The one-way valve (5) comprises a main body (13), the inlet end of the main body (13) is provided with a convex ring (12), and the convex ring (12) is limited between the end of the threaded barrel (9) and the inner wall of the third end (3).

4. A three-way connector according to claim 3, characterized in that: The three-way joint is provided with a stepped groove (11) inside the third end (3), and the convex ring (12) is located in the stepped groove (11).

5. A three-way connector according to any one of claims 2 to 4, characterized in that: The one-way valve (5) is a duckbill valve, comprising a main body (13), an inlet end of the main body (13) having a convex ring (12) integrally formed thereon, and an outlet end of the main body (13) having a fluid discharge slot (14) integrally formed thereon.

6. A three-way connector according to claim 5, characterized in that: The direction along the line connecting the first end (1) and the second end (2) is defined as the first direction, and the length direction of the fluid discharge slot (14) is arranged along the first direction.

7. A three-way connector according to claim 5, characterized in that: The three-way joint is provided with a stepped groove (11) inside the third end (3), the convex ring (12) is located in the stepped groove (11), the height of the convex ring (12) is higher than the depth of the stepped groove (11), and the end of the threaded barrel (9) presses the top surface of the convex ring (12).

8. A three-way connector according to any one of claims 1-4, 6 and 7, characterized in that: The three-way connector comprises a first connector portion (6), the first connector portion (6) being capable of connecting to an external device, and the first connector portion (6) being fixedly connected to or integrally formed with the first end (1); And / or the three-way connector comprises a second connector portion (7), the second connector portion (7) being capable of connecting to an external device, the second connector portion (7) being fixedly connected to or integrally formed with the second end (2); And / or the three-way joint comprises a third joint portion (8), the third joint portion (8) is capable of connecting to an external device, and the second joint portion (7) is fixedly connected to or integrally formed with the assembly part (4).

9. A three-way connector according to any one of claims 1-4, 6 and 7, characterized in that: The assembly part (4) has a polygonal outer peripheral surface (41).

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