WO2019056144A1

WO2019056144A1 - Fluid divider

Info

Publication number: WO2019056144A1
Application number: PCT/CN2017/102155
Authority: WO
Inventors: 陈保同
Original assignee: 东莞好奇智能科技有限公司
Priority date: 2017-09-19
Filing date: 2017-09-19
Publication date: 2019-03-28
Also published as: CN111492169A

Abstract

A fluid divider. The device comprises a container (10), multiple valves (60), multiple connectors (20), multiple fasteners (30), and multiple sheet-like annular seal members (40). The connectors are connected to the valves and the container. The valves control connection and disconnection of pipelines. The connectors are in sealed connection with the container by means of the plastically-deformed fasteners. In the divider, the connection and the sealing between the connectors and the container are reliable, and the product processing technology is simple.

Description

Technical field

[0001] The present invention relates to the field of fluid connectors, and in particular to a connection device for dispensing fluid from a main line to a branch.

Background technique

[0002] Gas and liquid conveying pipelines are widely used in petroleum, chemical and other industrial fields. In production applications, the fluid in the main pipe or vessel often needs to be connected to multiple branch lines to distribute fluids to meet industrial needs, to achieve sample testing, fluid performance testing, and heat dissipation. The gas source distributor is the most widely used in the industrial field. Chinese patent CN102788246A discloses a gas source distributor, which is a centrally connected starting instrument connected to the gas main pipe, which can be conveniently controlled. The continuity of each pipeline. The Chinese patent CN104180115A considers that the connection method of the prior patent causes the container wall to be too thick, which causes the entire device to be cumbersome, and thus an improvement has been made to invent a thin-wall type fluid flow dividing device. The fluid shunt device disclosed in Chinese Patent No. CN104180115A has a thin wall and a light weight, but the processing and manufacturing process is not good. In this device, the insertion pin must be carried out from the inner end of the container, and after the insertion is completed, the container is further processed. The welding of the end caps, the assembly process, the assembly speed is slow, and finally the welding is easily broken, resulting in seal failure and low yield.

technical problem

SUMMARY OF THE INVENTION An object of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a fluid flow divider which can achieve a firm connection and a stable seal by using a thin-walled container and a snap-fit connection, and the apparatus is fast in processing.

Problem solution

Technical solution

[0004] A fluid flow divider comprising a container, a plurality of valves, a plurality of joints, a plurality of fasteners and a plurality of flaky annular seals; a joint connected to the valve and the container; and a valve control line opening and closing; The container includes at least one fluid main passage for connecting the main pipe, and further includes a circular hole provided on the cylindrical wall of the container and connected to the joint; the joint is substantially circular and has a through hole, the first end has Used to connect Connected to the female thread of the external device or pipe, the central thread forms a central hole, the central hole penetrates along the joint axial direction to the second end of the joint, the diameter of the central hole at the second end is smaller than the diameter of the female thread, so that the center hole is close The second end forms an annular platform, and an annular platform protruding from the end surface is disposed on the end surface of the second end of the joint; the fastening component includes a female thread portion, a thin wall portion, an outer edge portion, a protrusion portion and a center hole, and the thin portion The inner wall is provided with a guiding groove, and the groove surrounds the central hole of the fastening member of the thin wall portion, and the central hole of the fastening member penetrates the female thread portion, the thin wall portion and the outer edge portion; the female thread portion of the fastening member And the thin-walled portion sequentially passes through the joint, the sealing member and the circular hole of the container, and under the external force in the axial direction and the opposite direction, the thin-walled portion is plastically collapsed and bulges radially outward toward the thin-walled portion to form a protruding portion. , the lower edge of the outer edge of the fastening component is abutted on the annular platform of the joint, and the protrusion abuts against the inner wall of the container surrounding the circular hole, so that the joint forms an axial clamping with the container, and the sealing member is clamped. At the second end face and the outer wall of the thin wall Room annular effectively enhance sealing effect.

[0005] Further, the guiding groove is located near the female thread portion; the guiding groove is preferably continuous, annular

The guiding groove has the best curved section.

[0006] Further, the thickness of the thin portion of the fastening member is smaller than the thickness of the female thread portion.

Further, the outer diameter of the thin portion is the same as the outer diameter of the female thread portion, and the diameter of the central hole before the thin portion is plasticized is larger than the diameter of the female thread portion. With this structure, in the plastic deformation, the thin portion is more likely to bulge radially outward to form a projection without collapsing radially inward, obstructing the center hole as the flow passage.

[0008] Further, in order to facilitate the insertion of the joint and the round hole assembly, the front end of the female thread portion is in a folded shape.

Further, in order to improve the friction between the fastening member and the inner wall of the container, the fastening member is prevented from being loosened in the axial direction, and the outer wall of the thin portion is provided with a grain or a protrusion to increase the friction between the protrusion and the inside of the container.

[0010] Further, in order to improve the friction between the fastening component and the joint, the joint and the fastening component are prevented from loosening axially, and the lower edge of the outer edge portion is provided with a grain or a protrusion, and the annular platform is also provided with a grain or a convex shape. Start.

[0011] The fluid splitter further includes a bleed port for cleaning on the container.

[0012] Further, the second end surface of the joint is a flat surface, and the fastening member is plastically deformed and the wall of the container is also plasticized, so that the outer wall of the container is attached to the second end surface of the joint.

Advantageous effects of the invention

Beneficial effect

[0013] The sealing method of the joint and the container in the invention is reliable and the processing process is simple; in addition, the connection manner between the joint and the container adopts a manner of fastening inside the container, and the snap fit only needs to be operated outside the complete container. The guide groove provided on the thin wall portion can guide the entire thin portion radially outward and outward to form a protrusion

, to ensure that it does not collapse inward, and to ensure the consistency of plastic deformation.

Brief description of the drawing

DRAWINGS

1 is a structural view of a fluid splitter;

2 is an exploded view of a fluid splitter;

Figure 3 is an axial cross-sectional view of the fastening member;

Figure 4 is an axial cross-sectional view of the joint;

[0018] FIG. 5 is a schematic structural view of a clamping device;

[0019] FIG. 6 is a schematic view of the clamping device and the fastening member after being screwed together;

[0020] FIG. 7 is a schematic view showing the cooperation of the clamping device with the fastening member, the joint, and the sealing member;

[0021] FIG. 8 is a diagram showing a pre-compression state of the fastening device to the fastening member;

[0022] FIG. 9 is a view showing an initial compression state of the fastening device to the fastening member;

Figure 10 is an enlarged view of a portion A in Figure 9;

[0024] FIG. 11 is a view showing a state in which the clamping device completes the compression of the fastening member;

Figure 12 is a partial cross-sectional view of a fluid splitter without a valve;

Figure 13 is a partial cross-sectional view of the fluid splitter.

BEST MODE FOR CARRYING OUT THE INVENTION

[0027] In order to facilitate the understanding of the present invention, the specific embodiments of the present invention and the assembly process will be described in detail below with reference to the accompanying drawings.

Embodiments of the invention

1, FIG. 2, FIG. 3, FIG. 4, FIG. 12, FIG. 13, a fluid flow divider including a container 10, a plurality of valves, a plurality of joints, a plurality of fasteners, and a plurality of flaky shapes a ring seal; a joint connected to the valve and the container; a valve control line opening and closing; the container comprising at least one fluid main passage for connecting the main pipe, and a circle connected to the joint wall of the container and connected to the joint Hole 10; container 10 includes a round shape The middle section 11, the gathered front section 12, the gathered rear section 13, the front section 12 and the rear section 13 are integrally joined by the weld bead 16 and the weld bead 17, and form a container having the cavity 19; the front section 12 has a fluid main passage 14. The rear section 13 has a venting interface 15, and the cylindrical wall of the middle section 11 has six circular holes 18 connected to the joint; the joint 20 has a substantially circular tubular shape with a through-center hole, and the first end 21 has a a female thread 22 connecting an external device or pipe, the female thread forming a central hole, the central hole extending axially along the joint to the second end 29 of the joint, the diameter of the central hole at the second end 29 being smaller than the diameter of the female thread, ie The diameter at the location 25 is smaller than the diameter at the location 28 such that the central aperture forms an annular platform 24 adjacent the second end 29 and is provided with a grain or projection on the annular platform 24, the end face 23 of the second end of the joint being planar. An annular table 26 projecting from the end face 23 is provided on the end face 23. The fastening member 30 includes a female thread portion 33, a thin portion 32, an outer edge portion 31, a protrusion portion 322, and a center hole. The outer diameter of the thin portion 32 is the same as the outer diameter of the female thread portion 33, and the thin portion 32 is molded before The diameter of the central hole is larger than the diameter of the female thread portion, and the wall thickness of the thin portion 32 is smaller than the wall thickness of the female screw portion 33. The inner wall 322 of the thin portion 32 is provided with a guiding groove 323 on the side close to the female screw portion 33. The groove 323 is a continuous, annular groove, and the guiding groove surrounds the central hole of the thin portion, and the guiding groove 323 has an arc shape; the outer wall of the thin portion 32 is provided with the drawing pattern 321 to improve the fastening member and the container The frictional force of the inner wall, the lower edge 311 of the outer edge portion 31 is provided with a texture to improve the frictional force between the fastening member and the joint, the front end 333 of the female thread portion is in a folded shape, and the central hole of the fastening member 30 penetrates the female thread portion 33, The thin portion 32 and the outer edge portion 31; the female thread portion 33 and the thin portion 32 of the fastening member 30 sequentially pass through the joint 20, the sealing member 40 and the container circular hole 18, under the external force in the axial direction and the opposite direction The thin portion 32 is plastically collapsed and bulges radially outward toward the thin portion to form a protrusion 322, the lower edge 311 of the outer edge portion 31 of the fastening member is abutted on the annular platform 24 of the joint, and the protruding portion 322 abuts against the inner wall of the container surrounding the circular hole 18, so that the joint 20 forms an axial clamping with the container 10. Tightening, the fastening member 30 is deformed, and the wall of the container is also plastically deformed, so that the outer wall of the container 10 is fitted on the second end surface 23 of the joint, and the sealing member 40 is clamped between the end surface 23 and the outer wall of the thin portion 32. The annular table 26 can effectively enhance the sealing effect. The annular table 26 is so thin that it can be squeezed into the interior of the seal such that the seal forms an annular groove in which the annular table 26 fits. The joint 20 is also provided with a mark 27 for marking the position of the joint relative to the container. On the fluid splitter, the marks on all the joints are oriented to ensure uniform orientation of the valve 60, that is, the handle orientation is uniform, which facilitates the valve. Closed operation. The venting port 15 can be selectively installed with valves or pipes according to actual working conditions. The valve is installed in Figure 1.

Figure 6 - Figure 13 shows a method of installing a fluid splitter, and Figure 5 is a schematic view of the clamping device, specifically The installation method is as follows: the male threaded end 521 of the mandrel 52 of the clamping device 50 is screwed with the female thread 332 of the female threaded portion of the fastening component, and the screwing orientation is as shown in FIG. 6, and the folded front end of the fastening component is further 333 passes through the joint 20, the seal 40, and the circular hole 18 in sequence, ensuring that the mark 27 on the joint 20 is oriented toward a predetermined orientation, and the sleeve end 511 is abutted against the upper edge 312 of the fastener, and then on the sleeve 51. Applying a force F1, applying a force F2 on the mandrel 52 to axially compress the fastener, the thin portion 32 firstly forms a bulge 324 radially outwardly at the guiding groove 323, along with the axial compression force. The bulging 324 pulls the remaining portion of the thin wall portion to continue to bulge outward, forming a protrusion 322. As the force is further increased, the protrusion portion 322 abuts against the inner wall of the container 10, and presses the inner wall of the container to be plasticized, and is adaptive. It is fitted to the end face 23 of the joint 20, and finally the mandrel 52 and the female screw portion 33 are rotated, and the mounting of a joint is completed as shown in FIG. Install the remaining connectors in the same way as above. Finally, install the valve onto the fitting.

Experiments have shown that the guiding groove 323 is disposed on the inner wall to be more effective than the outer wall; the curved portion is arranged in an arc shape to ensure that the guiding groove 323 does not break during deformation, and the outwardly bulging protrusion 322 has a more regular shape and a clamping force. The continuous, annular structured guide groove 323 ensures that the raised projections 322 are plastically consistent and clamped.

Claims

Claim

[Claim 1] A fluid flow divider comprising a container, a plurality of valves, a plurality of joints, a plurality of fasteners and a plurality of flaky annular seals; a joint connected to the valve and the container; and a valve control line opening and closing The container includes at least one fluid main passage for connecting the main pipe, and further includes a circular hole provided on the cylindrical wall of the container and connected to the joint; the joint has a circular tubular shape, has a through hole, and the first end has a a female thread connecting the external device or the pipe, the central hole extending axially along the joint to the second end of the joint, the diameter of the central hole at the second end being smaller than the diameter of the female thread, such that the central hole forms a ring near the second end a platform, the second end surface of the joint is provided with an annular table protruding from the end surface; the fastening component comprises a female thread portion, a thin wall portion, an outer edge portion, a protrusion portion and a center hole, and the inner wall of the thin wall portion is provided with a surrounding center a guiding groove of the hole, the central hole of the fastening member penetrates the female thread portion, the thin portion and the outer edge portion; the female thread portion and the thin wall portion of the fastening member sequentially pass through the joint, the seal and the container The circular hole, under the external force in the axial direction and the opposite direction, the thin wall portion is plastically collapsed and bulged radially outward of the thin portion to form a protrusion so that the lower edge of the outer edge portion of the fastening member abuts On the annular platform of the joint, the protrusion abuts against the inner wall of the container surrounding the circular hole, and the joint is axially clamped with the container, and the sealing member is clamped between the end surface of the second end and the outer wall of the thin portion, the ring The table can effectively enhance the sealing effect.

[Claim 2] The fluid flow divider of claim 1, wherein: the guiding groove is annular.

[Claim 3] The fluid flow divider according to claim 2, wherein: the guiding groove is continuous

[Claim 4] The fluid flow divider according to claim 2, wherein the guide groove is located near the female thread portion.

[Clave 5] The fluid flow divider according to claim 2, wherein: the guide groove has an arcuate cross section.

[Claim 6] The fluid flow divider according to claim 1, wherein the wall thickness of the thin portion of the engaging member is smaller than the wall thickness of the female screw portion.

[Claim 7] The fluid flow divider according to claim 1, wherein: the outer diameter of the thin portion is the same as the outer diameter of the female thread portion, and the diameter of the central hole before the thin wall portion is larger than the diameter of the female thread portion

[Claim 8] The fluid flow divider according to claim 1, wherein: the front end of the female thread portion of the fastening member is gathered.

[Claim 9] The fluid flow divider according to claim 1, wherein: the outer wall of the thin portion is provided with a grain or a projection.

[Claim 10] The fluid flow divider according to claim 9, wherein: the lower edge of the outer edge portion is provided with a grain or a protrusion, and the annular platform is also provided with a grain or a protrusion.

[Claim 11] The fluid flow divider according to claim 1, wherein: the lower edge of the outer edge portion is provided with a grain or a protrusion, and the annular platform is also provided with a grain or a protrusion.

[Claim 12] The fluid flow diverter of claim 1, wherein: the fluid diverter further comprises a bleed port for cleaning on the container.

[Claim 13] The fluid flow divider according to claim 1, wherein: the second end surface of the joint is a flat surface, and the fastening member is plastically deformed, and the wall of the container is also plastically deformed, so that the outer wall of the container is attached to the joint. On the two end faces.

[Claim 14] The fluid flow divider according to claim 1, wherein: the joint is provided with a mark for marking the position of the joint with respect to the container, and the marks of all the joints are oriented in the same direction, and the valves are oriented in the same direction.