Tee fitting assembly

Abstract

The present invention discloses a three-way joint assembly. The three-way joint assembly includes a three-way sealing ring, a fastener, a first connecting seat and a second connecting seat. The first connecting seat and the second connecting seat are combined to form a main flow hole, a branch flow hole and a sealing groove. The sealing groove is recessed from the hole wall of the main flow hole and extends to the hole wall of the branch flow hole. The three-way sealing ring includes a main flow hole that penetrates and a branch flow hole connected to the main flow hole. The fastener locks and connects the free end of the first connecting seat and the free end of the second connecting seat. The three-way sealing ring is limited to the sealing groove. The axis of the main flow hole coincides with the axis of the main flow hole, and the axis of the branch flow hole coincides with the axis of the branch flow hole. The three-way sealing ring elastically squeezes and seals the pipe walls of the three pipes under the extrusion action of the first connecting seat and the second connecting seat, and the fluid forms an internal pressure in the three-way sealing ring to improve the sealing effect.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline connection, in particular to a three-way joint assembly. Background Art

[0002] The tee joint is used to connect three pipes so that the fluid can flow along the tee joint. The tee joint has three interfaces, each of which is connected to the corresponding pipe through a straight joint assembly. The tee joint needs to be equipped with three straight joint assemblies to connect the pipes. The interface connection is complicated, and the number of straight joint assemblies required is large, the connection efficiency is low and the cost is high, so it is necessary to improve it. Summary of the invention

[0003] The object of the present invention is to provide a three-way joint assembly.

[0004] The first aspect of the technical solution adopted by the present invention is: a three-way joint assembly, including a three-way sealing ring, a fastener, a first connecting seat and a second connecting seat hingedly connected to the first connecting seat, the first connecting seat and the second connecting seat are combined to form a mainstream through hole, a branch flow hole intersecting with the mainstream through hole and a sealing groove for accommodating the three-way sealing ring, the sealing groove is recessed from the hole wall of the mainstream through hole and extends to the hole wall of the branch flow hole, the three-way sealing ring includes a main flow hole passing through and a branch flow hole intersecting with the main flow hole, the fastener locks and connects the free end of the first connecting seat and the free end of the second connecting seat, the three-way sealing ring is limited to the sealing groove, the axis of the main flow hole coincides with the axis of the mainstream through hole, and the axis of the branch flow hole coincides with the axis of the branch flow hole.

[0005] In one embodiment, the three-way sealing ring includes a first annular rib and a second annular rib extending from the hole wall of the main flow hole toward the axial direction of the main flow hole, the first annular rib and the second annular rib are spaced apart in the main flow hole and inclined toward each other, the branch flow hole is located between the first annular rib and the second annular rib, the minimum diameter of the first annular rib is smaller than the aperture of the main flow hole, and the minimum diameter of the second annular rib is smaller than the aperture of the main flow hole.

[0006] In one embodiment, the first annular rib and the second annular rib are respectively located at two ends of the main flow hole, the first annular rib includes a first conical surface opening toward one end of the main flow hole, and the second annular rib includes a second conical surface opening toward the other end of the main flow hole, and the first conical surface and the second conical surface are inclined from the end of the three-way sealing ring toward the middle.

[0007] In one embodiment, the three-way sealing ring also includes a third annular rib extending from the hole wall of the branch diversion hole toward the axial direction of the branch diversion hole, the third annular rib is inclined toward the main diversion hole, and the minimum diameter of the third annular rib is smaller than the aperture of the branch flow hole.

[0008] In one embodiment, the third annular rib includes a third conical surface opening toward one end of the branch flow hole, and the third conical surface is inclined toward the main flow hole.

[0009] In one embodiment, the end wall surface of the main guide hole is set as a conical surface and is limited to the portion of the groove wall extending from the sealing groove to the main through hole; and / or, the end wall surface of the branch guide hole is set as a conical surface and is limited to the portion of the groove wall extending from the sealing groove to the branch through hole.

[0010] In one embodiment, the first connecting seat includes an arc-shaped first main mounting groove, a first branch mounting groove intersecting the first main mounting groove, a first main limiting groove recessed from the hole wall of the first main mounting groove, and a first branch limiting groove recessed from the hole wall of the first branch mounting groove and extending to the first main limiting groove; the second connecting seat includes an arc-shaped second main mounting groove, a second branch mounting groove intersecting the second main mounting groove, a second main limiting groove recessed from the hole wall of the second main mounting groove, and a second branch limiting groove recessed from the hole wall of the second branch mounting groove and extending to the second main limiting groove, the first main limiting groove, the second main limiting groove, the first branch limiting groove and the second branch limiting groove constitute the sealing groove in a closed state, the first main mounting groove and the second main mounting groove constitute a mainstream through hole in a closed state, and the first branch mounting groove and the second branch mounting groove constitute a branch flow hole in a closed state.

[0011] In one embodiment, the first connecting seat further comprises a first main clamp groove formed by a groove wall depression of the first main installation groove and a first branch clamp groove formed by a groove wall depression of the first branch installation groove, the first main clamp groove is far away from the first main limiting groove, and the first branch clamp groove is far away from the first branch limiting groove;

[0012] The second connecting seat further comprises a second main clamp groove formed by a groove wall depression of the second main installation groove and a second branch clamp groove formed by a groove wall depression of the second branch installation groove, the second main clamp groove is far away from the second main limiting groove, and the second branch clamp groove is far away from the second branch limiting groove;

[0013] The first main clamp groove and the second main clamp groove are combined to form an annular main clamp groove, and the first branch clamp groove and the second branch clamp groove are combined to form an annular branch clamp groove.

[0014] In one embodiment, the aperture of the main flow hole is greater than or equal to the aperture of the branch flow hole.

[0015] In one embodiment, the first connecting seat includes a first hinge portion protruding from the outer peripheral wall, the first hinge portion includes first hinge ribs distributed at intervals, the second connecting seat includes a second hinge portion protruding from the outer peripheral wall, the second hinge portion includes second hinge ribs distributed at intervals, and the three-way joint assembly also includes a plug pin, which is plugged and connected to the first hinge ribs and the second hinge ribs distributed alternately.

[0016] After adopting the above structure, the advantages of the present invention compared with the prior art are: the three-way sealing ring made of elastic material can be tensioned and connected to the three pipes that need to be connected, the first connecting seat and the second connecting seat are closed and clamped outside the three-way sealing ring to form a locking structure of the three-way joint, and the three-way sealing ring elastically squeezes and seals the pipe walls of the three pipes under the extrusion action of the first connecting seat and the second connecting seat, and the fluid forms an internal pressure in the three-way sealing ring to improve the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a structural schematic diagram of the equal diameter three-way joint assembly of the present invention.

[0019] Figure 2 It is a structural schematic diagram of a reducing tee joint assembly of the present invention.

[0020] Figure 3 The invention is a schematic cross-sectional structural diagram of a reducing tee joint assembly connecting a pipeline.

[0021] Figure 4 It is a structural schematic diagram of an equal-diameter three-way sealing ring of the present invention.

[0022] Figure 5 It is a schematic cross-sectional view of the equal-diameter tee joint assembly of the present invention.

[0023] Figure 6 It is a structural schematic diagram of a reducing tee sealing ring of the present invention.

[0024] Figure 7 It is a schematic cross-sectional structural diagram of a reducing tee joint assembly of the present invention.

[0025] Figure 8 It is a schematic diagram of the exploded structure of the reducing tee joint assembly of the present invention.

[0026] In the figure: first connecting seat 10; first main mounting groove 11; first branch mounting groove 12; first main limiting groove 13; first branch limiting groove 14; first main clamp groove 15; first branch clamp groove 16; first hinged portion 17; first hinged rib 171; plug pin 172; positioning identification portion 18; second connecting seat 20; second main mounting groove 21; second branch mounting groove 22; second main limiting groove 23; second branch limiting groove 24; second main clamp groove 25; second branch clamp groove 26; The second hinged portion 27; the second hinged rib 271; the three-way sealing ring 30; the main flow hole 31; the branch flow hole 32; the first annular rib 33; the first conical surface 331; the second annular rib 34; the second conical surface 341; the third annular rib 35; the third conical surface 351; the fastener 40; the first pipe 50; the snap-fit ​​rib 51; the second pipe 60; the third pipe 70; the three-way joint assembly 100; the main flow hole 101; the branch flow hole 102; the sealing groove 103. DETAILED DESCRIPTION

[0027] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

[0028] Examples, such as Figure 1 , Figure 2 and Figure 3 As shown, the three-way joint assembly 100 includes a three-way sealing ring 30, a fastener 40, a first connection seat 10, and a second connection seat 20 hingedly connected to the first connection seat 10. The first connection seat 10 and the second connection seat 20 are combined to form a main flow hole 101, a branch flow hole 102 intersecting the main flow hole 101, and a sealing groove 103 for accommodating the three-way sealing ring 30. The sealing groove 103 is recessed from the hole wall of the main flow hole 101 and extends to the hole wall of the branch flow hole 102. The three-way sealing ring 30 includes a main flow hole 31 that penetrates and a branch flow hole 32 that intersects the main flow hole 31. The fastener 40 locks and connects the free end of the first connecting seat 10 and the free end of the second connecting seat 20, the three-way sealing ring 30 is limited to the sealing groove 103, the axis of the main guide hole 31 coincides with the axis of the main flow hole 101, and the axis of the branch guide hole 32 coincides with the axis of the branch flow hole 102.

[0029] The three-way joint assembly 100 is used to connect the first pipeline 50, the second pipeline 60 and the third pipeline 70, wherein the axis of the first pipeline 50 is coaxial or parallel to the axis of the second pipeline 60, and the axis of the third pipeline 70 intersects with the axis of the first pipeline 50. The three-way sealing ring 30 is a three-way tubular structure made of elastic material, wherein the first pipeline 50 is plugged and installed in one end opening of the main flow hole 31, the second pipeline 60 is plugged and connected to the other end opening of the main flow hole 31, and the third pipeline 70 is plugged and connected to the branch flow hole 32. The three interface ends of the three-way sealing ring 30 are respectively tensioned and connected with the first pipeline 50, the second pipeline 60 and the third pipeline 70, so that the fluids in the first pipeline 50, the second pipeline 60 and the third pipeline 70 converge at the three-way sealing ring 30 and form internal pressure.

[0030] The main flow hole 101 and the branch flow hole 102 are formed by combining the first connection seat 10 and the second connection seat 20, wherein the main flow hole 101 and the branch flow hole 102 have the same aperture to form an equal-diameter three-way joint assembly 100 suitable for connecting pipes of the same diameter.

[0031] Alternatively, the aperture of the mainstream through hole 101 is greater than or equal to the aperture of the branch flow hole 102; alternatively, the aperture of the mainstream through hole 101 is less than or equal to the aperture of the branch flow hole 102; alternatively, the aperture of one end of the mainstream through hole 101 is less than or equal to the aperture of the branch flow hole 102, and the aperture of the other end is greater than the aperture of the branch flow hole 102, that is, the mainstream through hole 101 is a step hole structure, and the apertures at both ends are different. The apertures of the mainstream through hole 101 and the branch flow hole 102 are different to form a reducing tee joint assembly 100, which is suitable for connecting pipes of different diameters. It is worth mentioning that the apertures at both ends of the mainstream through hole 101 can be the same or different, and it is adaptively adjusted according to the actual application scenario.

[0032] The first connection seat 10 and the second connection seat 20 are closed and clamped outside the three-way sealing ring 30, and the first pipe 50 and the second pipe 60 are limited to the main flow hole 101, the third pipe 70 is limited to the branch flow hole 102, and the three-way sealing ring 30 is limited in the sealing groove 103. That is, the outer peripheral wall of the three-way sealing ring 30 is limited by the groove wall of the sealing groove 103 and can only be elastically deformed in the direction of the first pipe 50, the second pipe 60 and the third pipe 70, and the three-way sealing ring 30 is tensioned on the pipe walls of the first pipe 50, the second pipe 60 and the third pipe 70 under the extrusion of the fluid, and the sealing effect is good.

[0033] The first pipeline 50, the second pipeline 60 and the third pipeline 70 are first connected by the three-way sealing ring 30, and then clamped and fixed by the first connecting seat 10 and the second connecting seat 20. The pipeline connection of the first pipeline 50, the second pipeline 60 and the third pipeline 70 is convenient and the connection efficiency is high. The three-way joint assembly 100 can directly complete the pipeline connection of the first pipeline 50, the second pipeline 60 and the third pipeline 70, and the cost is low. One side of the first connecting seat 10 and one side of the second connecting seat 20 are hingedly connected, and the free end of the first connecting seat 10 and the free end of the second connecting seat 20 are attached to each other and locked and connected by the fastener 40, which is convenient for assembly. The first connecting seat 10 and the second connecting seat 20 are hingedly connected to clamp the three-way sealing ring 30 and the first pipeline 50, the second pipeline 60 and the third pipeline 70 to be connected, with high connection efficiency and high clamping firmness.

[0034] like Figure 3 , Figure 4 and Figure 6 As shown, in one embodiment, the three-way sealing ring 30 includes a first annular convex rib 33 and a second annular convex rib 34 extending from the hole wall of the main flow hole 31 to the axial direction of the main flow hole 31, the first annular convex rib 33 and the second annular convex rib 34 are spaced apart in the main flow hole 31 and inclined toward each other, the branch flow hole 32 is located between the first annular convex rib 33 and the second annular convex rib 34, the minimum diameter of the first annular convex rib 33 is smaller than the aperture of the main flow hole 101, and the minimum diameter of the second annular convex rib 34 is smaller than the aperture of the main flow hole 101.

[0035] The first annular convex rib 33 and the second annular convex rib 34 are annular convex rib structures. The first pipe 50 is inserted into the three-way sealing ring 30 and is tensioned with the first annular convex rib 33. The second pipe 60 is inserted into the three-way sealing ring 30 and is tensioned with the second annular convex rib 34. Among them, the first annular convex rib 33 can be tensioned and connected to the pipe wall of the first pipe 50, and the second annular convex rib 34 can be tensioned and connected to the pipe wall of the second pipe 60. The first annular convex rib 33 and the second annular convex rib 34 have a good bending and fitting effect, and the sealing area is expanded. The first annular convex rib 33 and the second annular convex rib 34 are spaced and distributed in the main flow hole 31 and are inclined toward the direction of approaching each other, so as to prevent the gaseous or liquid fluid in the first pipe 50 and the second pipe 60 from rushing out of the sealing space formed by the first annular convex rib 33 and / or the second annular convex rib 34, and the sealing effect is good.

[0036] The first annular rib 33 and the second annular rib 34 are respectively located at the two ends of the main flow hole 31, the first annular rib 33 includes a first conical surface 331 opening toward one end of the main flow hole 101, and the second annular rib 34 includes a second conical surface 341 opening toward the other end of the main flow hole 101, and the first conical surface 331 and the second conical surface 341 are inclined from the end of the three-way sealing ring 30 toward the middle direction.

[0037] The first conical surface 331 and the second conical surface 341 are inclined from the end of the three-way sealing ring 30 to the middle direction to guide the first pipe 50 and the second pipe 60 to be inserted, which is convenient for plugging and has a good centering guiding effect. In addition, the first conical surface 331 guides the first pipe 50 to be inserted and bent to fit the surface of the first pipe 50, and the second conical surface 341 guides the second pipe 60 to be inserted and bent to fit the surface of the second pipe 60, so that the bending and fitting direction of the first annular convex rib 33 and the second annular convex rib 34 are stable and well-balanced. The direction of the liquid pressure in the three-way sealing ring 30 deviates from the bending direction of the first conical surface 331 and the second conical surface 341. The first annular convex rib 33 is tightly fitted to the first pipe 50 under the action of the internal pressure, and the second annular convex rib 34 is tightly fitted to the second pipe 60 under the action of the internal pressure, so the sealing pressure is large and the sealing effect is good.

[0038] In one embodiment, the three-way sealing ring 30 also includes a third annular rib 35 extending from the hole wall of the branch diversion hole 32 toward the axial direction of the branch diversion hole 32, and the third annular rib 35 is inclined toward the main diversion hole 31, and the minimum diameter of the third annular rib 35 is smaller than the aperture of the branch flow hole 102.

[0039] The third annular convex rib 35 is an annular convex rib structure, and the third pipe 70 is inserted into the three-way sealing ring 30 and is tensionedly connected to the third annular convex rib 35, wherein the third annular convex rib 35 can be tensionedly connected to the pipe wall of the third pipe 70. The third annular convex rib 35 has a good bending and fitting effect, and expands the sealing area. The third annular convex ribs 35 are distributed at intervals in the branch diversion holes 32 and are inclined in a direction of approaching each other to prevent the gaseous or liquid fluid in the first pipe 50 and the second pipe 60 from rushing out of the sealed space formed by the third annular convex rib 35, and the sealing effect is good.

[0040] The third annular rib 35 includes a third conical surface 351 which opens toward one end of the branch flow hole 102, and the third conical surface 351 is inclined toward the main flow hole 31. The third conical surface 351 is inclined from the end of the three-way sealing ring 30 toward the main flow hole 31 to guide the third pipe 70 to be inserted, which is convenient for plugging and has a good centering guiding effect. In addition, the third conical surface 351 guides the third pipe 70 to be inserted and bend and fit to the surface of the third pipe 70, so that the bending and fitting direction of the third annular rib 35 is stable and the fitting balance is good. The direction of the liquid pressure in the three-way sealing ring 30 deviates from the bending direction of the third conical surface 351. The third annular rib 35 is tightly fitted to the third pipe 70 under the action of the internal pressure, and the sealing pressure is large and the sealing effect is good.

[0041] The first connection seat 10 and the second connection seat 20 are fitted and fixedly connected to clamp and connect the first pipeline 50, the second pipeline 60 and the third pipeline 70. The three-way sealing ring 30 is located in the sealing groove 103, and the outer peripheral wall of the three-way sealing ring 30 is fitted to the groove wall of the sealing groove 103, and the end of the three-way sealing ring 30 is limited by the corresponding groove wall of the sealing groove 103, so that the three-way sealing ring 30 is elastically deformed. The center direction of the main flow hole 31 and the branch flow hole 102 is approached to improve the extrusion sealing performance of the three-way sealing ring 30 and the first pipeline 50, the second pipeline 60 and the third pipeline 70, and the sealing effect is good.

[0042] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in one embodiment, the end wall surface of the main flow hole 31 is set as a conical surface and is limited to the part of the groove wall of the sealing groove 103 extending to the main flow hole 101; and / or, the end wall surface of the branch flow hole 32 is set as a conical surface and is limited to the part of the groove wall of the sealing groove 103 extending to the branch flow hole 102. The three-way sealing ring 30 includes a transverse tube body portion and a longitudinal tube body portion radially protruding from the tube wall of the transverse tube body portion, the transverse tube body portion forms the main flow hole 31 around the tubular space formed, and the longitudinal tube body portion forms the branch flow hole 32 around the tubular space formed. Among them, the ends of the transverse tube body portion and the longitudinal tube body portion are set as conical surfaces to abut against the groove wall of the sealing groove 103, and elastically deform along the groove wall of the sealing groove 103 toward the direction of their respective center lines to form an extrusion seal effect to the first pipeline 50, the second pipeline 60 and the third pipeline 70. The end of the three-way sealing ring 30 is set as a conical surface, and the groove wall corresponding to the sealing groove 103 is set as a conical surface, which can facilitate the first connecting seat 10 and the second connecting seat 20 to be clamped on the three-way sealing ring 30, and the clamping centering is good.

[0043] The first connection seat 10 includes an arc-shaped first main installation groove 11, a first branch installation groove 12 intersecting the first main installation groove 11, a first main limiting groove 13 recessed from the hole wall of the first main installation groove 11, and a first branch limiting groove 14 recessed from the hole wall of the first branch installation groove 12 and extending to the first main limiting groove 13. The second connection seat 20 includes an arc-shaped second main installation groove 21, a second branch installation groove 22 intersecting the second main installation groove 21, a second main limiting groove 23 recessed from the hole wall of the second main installation groove 21, and a second branch limiting groove 24 recessed from the hole wall of the second branch installation groove 22 and extending to the second main limiting groove 23. The first main limiting groove 13, the second main limiting groove 23, the first branch limiting groove 14, and the second branch limiting groove 24 constitute the sealing groove 103 in a closed state. The first main mounting groove 11 and the second main mounting groove 21 form a main flow hole 101 when they are closed, and the first branch mounting groove 12 and the second branch mounting groove 22 form a branch flow hole 102 when they are closed.

[0044] The first connection seat 10 and the second connection seat 20 are hingedly connected, and the second connection seat 20 rotates relative to the first connection seat 10 to facilitate the three-way joint assembly 100 to clamp and connect the first pipe 50, the second pipe 60 and the third pipe 70. The first main installation groove 11 and the second main installation groove 21 are closed to form a main flow hole 101 and clamp the first pipe 50 and the second pipe 60, and the first branch installation groove 12 and the second branch installation groove 22 form a branch flow hole 102 in the closed state and clamp the third pipe 70.

[0045] like Figure 5 , Figure 7 and Figure 8 As shown, the three-way sealing ring 30 is limited to the sealing groove 103 formed by the first main limiting groove 13, the second main limiting groove 23, the first branch limiting groove 14 and the second branch limiting groove 24 in the closed state, wherein the outer peripheral wall of the three-way sealing ring 30 and the groove walls of the first main limiting groove 13, the second main limiting groove 23, the first branch limiting groove 14 and the second branch limiting groove 24 are mutually squeezed and fitted. When the first connecting seat 10 and the second connecting seat 20 are closed and locked, the first main limiting groove 13, the second main limiting groove 23, the first branch limiting groove 14 and the second branch limiting groove 24 squeeze the outer peripheral wall of the three-way sealing ring 30 at the same time, so that the three-way sealing ring 30 is squeezed and deformed in the center direction, the elastic deformation direction is stable and controllable, and the sealing effect is good. In an optional embodiment, the radius of the first main limiting groove 13 and the second main limiting groove 23 is smaller than the radius of the transverse tube body of the three-way sealing ring 30, and the radius of the first branch limiting groove 14 and the second branch limiting groove 24 is smaller than the radius of the longitudinal tube body of the three-way sealing ring 30.

[0046] The first connecting seat 10 also includes a first main clamp groove 15 formed by a groove wall depression of the first main installation groove 11 and a first branch clamp groove 16 formed by a groove wall depression of the first branch installation groove 12. The first main clamp groove 15 is far away from the first main limiting groove 13, and the first branch clamp groove 16 is far away from the first branch limiting groove 14.

[0047] The second connection seat 20 further includes a second main clamp groove 25 formed by the groove wall depression of the second main installation groove 21 and a second branch clamp groove 26 formed by the groove wall depression of the second branch installation groove 22, the second main clamp groove 25 is far away from the second main limiting groove 23, and the second branch clamp groove 26 is far away from the second branch limiting groove 24. The first main clamp groove 15 and the second main clamp groove 25 are closed to form an annular main clamping groove, and the first branch clamp groove 16 and the second branch clamp groove 26 are closed to form an annular branch clamping groove.

[0048] The outer peripheral walls of the first pipe 50, the second pipe 60 and the third pipe 70 are all provided with a snap-fitting rib 51 in the form of an annular protruding surface, and the setting position of the snap-fitting rib 51 is adapted to the main snap-fitting groove or the branch snap-fitting groove. For example, the first pipe 50 and the second pipe 60 are respectively installed in the main flow through hole 101, the snap-fitting rib 51 of the first pipe 50 is limited to the main snap-fitting groove at one end of the main flow through hole 101, the snap-fitting rib 51 of the second pipe 60 is limited to the main snap-fitting groove at the other end of the main flow through hole 101, and the snap-fitting rib 51 of the third pipe 70 is limited to the branch snap-fitting groove of the branch flow through hole 102. The snap-fitting rib 51 is limited in the corresponding main snap-fitting groove or the branch snap-fitting groove to lock the axial installation position of the first pipe 50, the second pipe 60 and the third pipe 70, and the positioning effect is good.

[0049] The first connection seat 10 includes a first hinged portion 17 protruding from the outer peripheral wall, and the first hinged portion 17 includes first hinged ribs 171 distributed at intervals. The second connection seat 20 includes a second hinged portion 27 protruding from the outer peripheral wall, and the second hinged portion 27 includes second hinged ribs 271 distributed at intervals. The three-way joint assembly 100 also includes a plug pin 172, and the plug pin 172 is plugged and connected to the first hinged ribs 171 and the second hinged ribs 271 distributed alternately.

[0050] The first connection seat 10 and the second connection seat 20 are hingedly connected, and one of them can rotate relative to the other to be in an unfolded position or a clamped position, thereby improving assembly efficiency. The fastener 40 only needs to lock one end of the first connection seat 10 and the second connection seat 20, and the locking efficiency is high. Optionally, the first connection seat 10 and the second connection seat 20 are symmetrically arranged to improve the balance of connection and processing.

[0051] The first hinged portion 17 is provided with first hinged ribs 171 distributed at intervals, and the second hinged portion 27 is provided with second hinged ribs 271 distributed at intervals. The first hinged rib 171 is inserted into the spacing groove of the second hinged rib 271 and locked by the plug pin 172, so that the first connecting seat 10 is hingedly connected to the second connecting seat 20, which is easy to assemble.

[0052] In one embodiment, the first connection seat 10 and / or the second connection seat 20 are provided with a positioning mark 18, and the positioning mark 18 is away from the opening of the main flow through hole 101 and the branch flow guide hole 32 to mark the clamping installation position of the first pipe 50, the second pipe 60 and the third pipe 70 with the first connection seat 10 and the second connection seat 20. For example, the positioning mark 18 is set as a positioning groove or a positioning boss on the surface of the first connection seat 10 and / or the second connection seat 20, so as to facilitate the user to measure the setting position of the annular ribs in the first pipe 50, the second pipe 60 and the third pipe 70.

[0053] The three-way connector assembly 100 is currently widely used, and other structures and principles are the same as those in the prior art, which will not be described in detail here.

Claims

1. A three-way joint assembly, characterized in that: The invention comprises a three-way sealing ring, a fastener, a first connecting seat and a second connecting seat hingedly connected to the first connecting seat, the first connecting seat and the second connecting seat are combined to form a main flow hole, a branch flow hole intersecting the main flow hole and a sealing groove for accommodating the three-way sealing ring, the sealing groove is recessed from the hole wall of the main flow hole and extends to the hole wall of the branch flow hole, the three-way sealing ring comprises a main flow hole passing through and a branch flow hole intersecting the main flow hole, the fastener locks and connects the free end of the first connecting seat and the free end of the second connecting seat, the three-way sealing ring is limited to the sealing groove, the axis of the main flow hole coincides with the axis of the main flow hole, and the axis of the branch flow hole coincides with the axis of the branch flow hole; The first connecting seat comprises an arc-shaped first main mounting groove, a first branch mounting groove intersecting the first main mounting groove, a first main limiting groove recessed from the hole wall of the first main mounting groove, and a first branch limiting groove recessed from the hole wall of the first branch mounting groove and extending to the first main limiting groove; the second connecting seat comprises an arc-shaped second main mounting groove, a second branch mounting groove intersecting the second main mounting groove, a second main limiting groove recessed from the hole wall of the second main mounting groove, and a second branch limiting groove recessed from the hole wall of the second branch mounting groove and extending to the second main limiting groove, the first main limiting groove, the second main limiting groove, the first branch limiting groove and the second branch limiting groove constitute the sealing groove in a closed state, the first main mounting groove and the second main mounting groove constitute a main flow hole in a closed state, and the first branch mounting groove and the second branch mounting groove constitute a branch flow hole in a closed state; The first connecting seat further comprises a first main clamp groove formed by a groove wall depression of the first main installation groove and a first branch clamp groove formed by a groove wall depression of the first branch installation groove, the first main clamp groove is far away from the first main limiting groove, and the first branch clamp groove is far away from the first branch limiting groove; The second connecting seat further comprises a second main clamp groove formed by a groove wall depression of the second main installation groove and a second branch clamp groove formed by a groove wall depression of the second branch installation groove, the second main clamp groove is far away from the second main limiting groove, and the second branch clamp groove is far away from the second branch limiting groove; The first main clamp groove and the second main clamp groove are closed to form an annular main clamp groove, and the first branch clamp groove and the second branch clamp groove are closed to form an annular branch clamp groove; The three-way sealing ring includes a first annular convex rib and a second annular convex rib extending from the hole wall of the main flow hole toward the axial direction of the main flow hole, the first annular convex rib and the second annular convex rib are spaced apart in the main flow hole and inclined toward each other, the branch flow hole is located between the first annular convex rib and the second annular convex rib, the minimum diameter of the first annular convex rib is smaller than the aperture of the main flow hole, and the minimum diameter of the second annular convex rib is smaller than the aperture of the main flow hole.

2. The three-way joint assembly according to claim 1, characterized in that: The first annular convex rib and the second annular convex rib are respectively located at the two ends of the main flow hole, the first annular convex rib includes a first conical surface opening toward one end of the main flow hole, and the second annular convex rib includes a second conical surface opening toward the other end of the main flow hole, and the first conical surface and the second conical surface are inclined from the end of the three-way sealing ring toward the middle direction.

3. The three-way joint assembly according to claim 1, characterized in that: The three-way sealing ring also includes a third annular rib extending from the hole wall of the branch flow guide hole toward the axial direction of the branch flow guide hole, the third annular rib is inclined toward the main flow guide hole, and the minimum diameter of the third annular rib is smaller than the aperture of the branch flow hole.

4. The three-way joint assembly according to claim 3, characterized in that: The third annular rib includes a third conical surface which opens toward one end of the branch flow hole, and the third conical surface is inclined toward the main flow hole.

5. The three-way joint assembly according to claim 1, characterized in that: The end wall surface of the main guide hole is set as a conical surface and is limited to the portion of the groove wall extending from the sealing groove to the main through hole; and / or, the end wall surface of the branch guide hole is set as a conical surface and is limited to the portion of the groove wall extending from the sealing groove to the branch through hole.

6. The three-way joint assembly according to claim 1, characterized in that: The aperture of the main flow hole is greater than or equal to the aperture of the branch flow hole.

7. The three-way joint assembly according to claim 1, characterized in that: The first connecting seat includes a first hinge portion protruding from the outer peripheral wall, the first hinge portion includes first hinge ribs distributed at intervals, the second connecting seat includes a second hinge portion protruding from the outer peripheral wall, the second hinge portion includes second hinge ribs distributed at intervals, and the three-way joint assembly also includes a plug pin, which is plugged and connected to the first hinge ribs and the second hinge ribs distributed alternately.

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