WO2020237844A1 - 一种防溢流管 - Google Patents

一种防溢流管 Download PDF

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Publication number
WO2020237844A1
WO2020237844A1 PCT/CN2019/101144 CN2019101144W WO2020237844A1 WO 2020237844 A1 WO2020237844 A1 WO 2020237844A1 CN 2019101144 W CN2019101144 W CN 2019101144W WO 2020237844 A1 WO2020237844 A1 WO 2020237844A1
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WO
WIPO (PCT)
Prior art keywords
valve
tube wall
wall
overflow pipe
side wall
Prior art date
Application number
PCT/CN2019/101144
Other languages
English (en)
French (fr)
Inventor
王浩
Original Assignee
北京申创世纪信息技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201920776856.6U external-priority patent/CN209892785U/zh
Priority claimed from CN201910447527.1A external-priority patent/CN110056671B/zh
Priority to AU2019448719A priority Critical patent/AU2019448719B2/en
Priority to JP2022516252A priority patent/JP7263624B2/ja
Priority to GB2114767.3A priority patent/GB2596754B/en
Priority to SG11202112202PA priority patent/SG11202112202PA/en
Application filed by 北京申创世纪信息技术有限公司 filed Critical 北京申创世纪信息技术有限公司
Priority to CA3136857A priority patent/CA3136857C/en
Priority to KR1020217036692A priority patent/KR102592351B1/ko
Priority to NZ781623A priority patent/NZ781623A/en
Priority to BR112021021824A priority patent/BR112021021824A2/pt
Priority to US17/594,873 priority patent/US11746914B2/en
Priority to EP19930302.5A priority patent/EP3978787A4/en
Publication of WO2020237844A1 publication Critical patent/WO2020237844A1/zh
Priority to IL288312A priority patent/IL288312A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/147—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/005—Particular materials for seats or closure elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems

Definitions

  • the invention belongs to the technical field of fluid fittings. Specifically, the invention relates to an anti-overflow pipe.
  • the present invention provides an anti-overflow pipe, the technical solution of which is as follows:
  • An anti-overflow pipe comprising: a pipe wall and a valve; on a plane perpendicular to the length direction of the pipe wall, the cross section of the inner side wall of the pipe wall is elliptical, and the ellipse may be symmetrical along the long axis of the ellipse, It can also be asymmetric along the major axis of the ellipse, that is, the ellipse is divided into two arcs by the straight line where the major axis of the ellipse is located.
  • the curvatures of the two arcs can be the same or different;
  • the outer wall of the tube wall has a closed cross-section Annular;
  • the cross-section of the valve is a V-shaped structure, and the valve is present with respect to the origin of the ellipse of the inner side wall
  • the center is symmetrical and connected with the inner side wall, and the valve is provided with slits for unidirectionally conducting fluid.
  • the outer side wall of the pipe wall is elliptical in cross section, and the elliptical cross section of the outer side wall is the same as the inner side wall.
  • the elliptical origins of the cross-section coincide; along the elliptical curve direction of the inner side wall, the wall thickness of the tube wall gradually decreases from the end point of the oval minor axis to the end point of the oval major axis.
  • the ratio of the wall thickness of the pipe wall at the end point of the elliptical minor axis to the wall thickness at the end point of the elliptical major axis is in the range of 2 to 0.9 to 1.2.
  • the length ratio of the long axis to the short axis of the ellipse of the inner side wall cross section ranges from 5 to 3.5 to 4.5.
  • the top profile of the pipe wall is an arc-shaped curve with the middle part bent upward .
  • a stiffener is provided at the V-shaped cusp of the valve, and the stiffener is collinear with the oval minor axis of the inner side wall, and two of the stiffener The end is connected with the pipe wall and coincides with the minor axis of the elliptical cross-section.
  • the valve is provided with the slit in the middle of the reinforcing rib, and the length direction of the slit is the same as the length direction of the reinforcing rib.
  • the top surface of the pipe wall is a circular arc surface, and the circular arc surface transitions smoothly between the inner and outer side walls of the pipe wall.
  • the length of the valve from the top surface of the tube wall ranges from 5 mm to 20 mm.
  • the pipe wall and the valve are integrally arranged and made of thermoplastic elastomer material.
  • the V-shaped side walls of the valve are flat.
  • the above-mentioned anti-overflow tube is further preferably: the V-shaped two side walls of the valve are arc-shaped curved surfaces with the center curved downward.
  • the slit When the anti-overflow tube of the present invention is not affected by suction, the slit is in a closed state, and the fluid is blocked at the valve and does not overflow.
  • the tube wall When the tube wall is subjected to suction, the tube wall deforms, which in turn drives the valve to deform.
  • the valve When the valve is deformed, the V-shaped side walls bend downward, and the slits are bent and deformed and opened, thus leading to the path of fluid circulation. It flows outward from the valve by suction.
  • a valve with a V-shaped structure is arranged on the tube wall with an elliptical inner side wall section, so that the fluid is sucked out under the action of suction, and will not be affected by thermal expansion and contraction or the pressure of the cup to overflow, avoiding fluid waste and scalding , Wet the user, can protect the personal safety of the user.
  • the valve of the present invention can buffer the flow of fluid, avoid the hidden danger of excessive fluid flow, and can also prevent fluid outside the tube wall from flowing into the tube wall through the valve and causing fluid pollution.
  • the thickness of the tube wall in the elliptical circumferential direction of the inner side wall section of the present invention gradually becomes thinner from the end point of the short axis to the end point of the long axis, which can ensure that the deformation of the tube wall caused by the suction force becomes compressed in the short axis direction.
  • the long axis direction is expanded to control the deformation of the slit and accurately control the on-off of the fluid in the tube.
  • the top profile of the tube wall of the present invention is an arc-shaped curve curved upward in the middle, which can further ensure that the shape of the tube wall caused by suction becomes an ellipse
  • the short axis direction of the shape is compressed and the long axis direction is expanded, so as to accurately control the deformation of the top of the tube wall.
  • the V-shaped cusp of the valve of the present invention is provided with reinforcing ribs, which can generate an outward force on the tube wall along the direction of the oval minor axis to ensure the sealing effect of the valve. At the same time, it can also increase the fatigue life of the valve and increase the number of opening and closing of the slit on the valve, thereby increasing the life of the valve.
  • the top surface of the tube wall of the present invention is a circular arc surface, which avoids the hidden danger of cuts caused by the edges and corners of the top surface.
  • the top surface is rounded and smooth, which is more in line with the usage habits and can effectively improve the body feel.
  • Fig. 1 is a schematic diagram of the structure of the anti-overflow pipe of the present invention.
  • Figure 2 is a front view of the anti-overflow pipe of the present invention.
  • Fig. 3 is a cross-sectional view of Fig. 2.
  • Figure 4 is a side view of the anti-overflow pipe of the present invention.
  • Fig. 5 is a cross-sectional view of Fig. 4.
  • Figure 6 is a top view of the anti-overflow pipe of the present invention.
  • Figure 7 is a bottom view of the anti-overflow pipe of the present invention.
  • Figure 8 is a schematic diagram when the valve is curved.
  • Fig. 9 is a second structural diagram of the anti-overflow pipe of the present invention.
  • Figure 10 is the third structural diagram of the anti-overflow pipe of the present invention.
  • Figure 11 is the fourth structural diagram of the anti-overflow pipe of the present invention.
  • connection and connected used in the present invention should be understood in a broad sense. For example, they can be fixed or detachable; they can be directly connected or indirectly connected through intermediate components. Technical personnel can understand the specific meaning of the above terms according to the specific situation.
  • Figure 1 is a schematic structural diagram of the anti-overflow pipe of the present invention
  • Figure 2 is a front view of the anti-overflow pipe of the present invention
  • Figure 3 is a cross-sectional view of Figure 2
  • Fig. 5 is a cross-sectional view of the anti-overflow pipe of the present invention
  • Fig. 6 is a top view of the anti-overflow pipe of the present invention
  • Fig. 7 is a bottom view of the anti-overflow pipe of the present invention
  • Fig. 8 is a valve
  • Fig. 9 is a schematic diagram of the structure of the anti-overflow pipe of the present invention
  • Fig. 10 is a schematic diagram of the structure of the anti-overflow pipe of the present invention
  • Fig. 11 is a schematic diagram of the structure of the anti-overflow pipe of the present invention four. .
  • the present invention provides an anti-overflow tube, which mainly includes a tube wall 1 and a valve 2.
  • the The cross section of the inner wall is elliptical.
  • the ellipse can be symmetrical along the long axis of the ellipse, or asymmetrical along the long axis of the ellipse. That is, the ellipse is divided into two arcs on the line where the long axis of the ellipse is located.
  • the curvature can be the same or different; the cross section of the outer side wall of the tube wall 1 is a closed ring; the elliptical long axis of the inner side wall and the length direction of the tube wall 1 are in the plane, the cross section of the valve 2 has a V-shaped structure, and the valve 2 The origin of the ellipse section of the inner wall is symmetrical and connected to the inner wall.
  • the valve 2 is provided with a slit 3 for unidirectionally conducting fluid.
  • the inner wall of the tube wall 1 has an elliptical cross-section, and the ellipse is symmetrical along the long axis of the ellipse, that is, where the long axis of the ellipse lies.
  • a straight line divides the ellipse into two arcs, the curvature of the two arcs is the same;
  • the valve 2 has a V-shaped cross-section, and the valve 2 is provided with a slit 3.
  • the slit 3 is in a closed state. Obstructed at valve 2 without overflowing outward.
  • the tube wall 1 When the tube wall 1 is subjected to suction, the tube wall 1 deforms (the tube wall 1 is compressed in the direction of the short axis of the ellipse, and expanded in the direction of the long axis of the ellipse), which in turn drives the valve 2 to deform.
  • V When the valve 2 is deformed, V The two side walls of the shape are bent downward, and the slit 3 is bent and deformed to open, thereby leading the path of fluid circulation, and the fluid flows outward from the valve 2 under the action of suction.
  • a valve 2 with a V-shaped structure is arranged on the tube wall 1 whose inner side wall is an elliptical cross-section, so that the fluid is sucked out under the action of suction, and will not overflow due to the influence of thermal expansion and contraction or the pressure of the cup, thereby avoiding fluid waste It can protect the personal safety of the user by scalding and getting wet.
  • the valve 2 of the present invention can buffer the flow of fluid, avoid the hidden danger of excessive fluid flow, and can also prevent fluid outside the tube wall 1 from flowing into the tube wall 1 through the valve 2 and causing fluid pollution.
  • the cross section of the outer side wall of the tube wall 1 of the present invention is a closed ring shape, and the shape of the closed ring is not specifically limited, so that the tube wall 1 can be compressed along the minor axis direction of the elliptical cross section of the inner side wall under the action of a suction force.
  • the long axis direction of the shape can be expanded.
  • the cross-section of the outer wall of the present invention can be elliptical to increase the comfort of the user; as shown in Figure 9, the cross-section of the outer wall of the present invention can be concave with two reflex angles. Polygon, the direction of the center line of the two reflex angles coincides with the long axis direction of the ellipse of the inner wall section.
  • the cross-section of the outer side wall of the present invention can also be elliptical with serrations.
  • air can be circulated (for example, beverages applied to the sealing film).
  • the suction power when sucking fluid. As shown in FIG.
  • the cross section of the inner side wall of the tube wall 1 is an ellipse, and the ellipse is asymmetric along the long axis of the ellipse, that is, the ellipse is divided into two on the straight line where the long axis of the ellipse is located.
  • the curvature of the two arcs is different.
  • the present invention When in use, the present invention does not specifically limit the type of fluid, and can be widely applied to the conduction of fluid flow.
  • the fluid type can be gas, liquid, or colloid.
  • the present invention does not limit the length of the tube wall 1. It can be inserted into the cup body alone, or assembled on the end of the pipe or on the bottle cap.
  • the present invention when applied to the conduction of colloids, the present invention can be assembled on a feeding bottle and used as a nipple to prevent babies from choking and scalding; when applied to conduction of liquids, the present invention can be assembled on a travel mug, which is convenient for outdoor use. Avoid accidental spillage of water; when applied to the conduction of gas, the present invention can be assembled on the oxygen pipe and used in conjunction with the patient's breathing to avoid excessive oxygen overflow and waste.
  • the present invention also provides the following improved solutions:
  • the cross section of the outer side wall of the tube wall 1 is elliptical, and the cross section of the outer side wall is elliptical and the inner side
  • the elliptical origins of the wall sections coincide; along the elliptical curve direction of the inner side wall, the wall thickness of the tube wall 1 gradually decreases from the end point of the oval short axis to the end point of the oval long axis.
  • the ratio of the wall thickness of the tube wall 1 at the end of the elliptical minor axis to the wall thickness at the end of the major axis of the ellipse is in the range of 2 to 0.9 to 1.2; further, the major axis and the shorter The shaft length ratio ranges from 5 to 3.5 to 4.5.
  • the thickness of the tube wall 1 in the circumferential direction of the ellipse gradually becomes thinner from the end point of the short axis to the end point of the long axis, which can ensure that the deformation of the tube wall 1 generated by the suction force becomes an ellipse in the short axis direction and compressed in the long axis direction. Expansion to control the deformation of the slit 3 and accurately control the on-off of the fluid in the tube.
  • the elliptical long axis of the inner side wall and the length direction of the tube wall 1 are in the plane, and the top profile of the tube wall 1 is
  • the arc-shaped curve curved upward in the middle part, in line with the design that the thickness of the tube wall 1 in the circumferential direction of the ellipse of the present invention gradually becomes thinner from the end point of the short axis to the end point of the long axis, can further ensure that the tube wall 1 is deformed by suction
  • the ellipse is compressed in the short axis direction and expanded in the long axis direction, so as to accurately control the deformation of the top end of the tube wall 1.
  • the V-shaped cusp of the valve 2 is provided with reinforcing ribs 4, and both ends of the reinforcing ribs 4 are connected to the tube wall 1 and connected to the tube wall. 1
  • the minor axis of the elliptical section coincides.
  • the stiffener 4 deforms and bends with the deformation of the valve 2; when the suction stops When the tube wall 1 rebounds, the slit 3 is closed, the stiffener 4 rebounds, and the stiffener 4 rebounds to produce an outward force on the tube wall 1 along the oval minor axis.
  • the rebound of the tube wall 1 can be compensated to a certain extent, so as to ensure the sealing effect of the valve 2.
  • the present invention can increase the fatigue life of the valve 2 by arranging the stiffener 4 at the V-shaped cusp of the valve 2 and increase the number of opening and closing of the slit 3 on the valve 2, thereby increasing the service life of the valve 2.
  • a slit 3 is provided in the middle of the rib 4 on the valve 2, and slit 3
  • the length direction of the rib 4 is the same as the length direction of the rib 4, which can ensure that the slit 3 and the rib 4 are deformed simultaneously, and the sealing effect of the valve 2 is improved. Furthermore, the length of the slit 3 is not greater than the length of the rib 4.
  • the top surface 5 of the tube wall 1 is a circular arc surface, and the smooth transition between the circular arc surface and the inner and outer side walls of the tube wall 1 avoids the top
  • the edges and corners of the surface 5 may cause a hidden danger to the user.
  • the top surface 5 is round and smooth, which is more in line with the usage habits and can effectively improve the body feel.
  • the length of the valve 2 from the top surface 5 of the tube wall 1 ranges from 5mm to 20mm. It is convenient for the valve 2 to deform with the deformation of the tube wall 1, which can reduce the suction force when the user sucks the fluid, and facilitate the flow of the fluid when the suction force is applied.
  • the tube wall 1 and the valve 2 of the present invention are integrated and made of thermoplastic elastomer material, which is convenient for processing. Furthermore, the tube wall 1, the valve 2, and the stiffener 4 of the present invention are made of silicone material through a vulcanization process, and the silica gel used has a Shore hardness value ranging from 30 to 80, which can ensure the repeated deformation of the slit 3 under the action of suction. .
  • the shape of the valve 2 can be in various styles, which is not limited in the present invention.
  • the V-shaped side walls of the valve 2 (that is, the two surfaces on the valve 2 and on both sides of the stiffener 4) are flat surfaces; as shown in Figure 8, the V-shaped side walls of the valve 2
  • the two side walls (that is, the two surfaces on the valve 2 and the two sides of the reinforcing rib 4) are arc-shaped curved surfaces with the center curved downward.
  • the curved surface is more prone to deformation than the plane, so the shape of the valve 2 should be selected to match the material and hardness of the valve 2. As the hardness of the material increases, thermoplastic elastomers are less prone to deformation. For example, take silica gel as an example, and use a Shore A value of 70 as the boundary. When the value is higher than 70, it uses an arc curved surface, and when it is lower than 70, it uses a flat surface.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Pipe Accessories (AREA)
  • Table Equipment (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Sink And Installation For Waste Water (AREA)

Abstract

一种防溢流管，包括管壁（1）和瓣膜（2）；在垂直于管壁（1）长度方向的平面上，管壁（1）的内侧壁截面呈椭圆形，管壁（1）的外侧壁截面呈封闭环状；在内侧壁的椭圆形长轴和管壁（1）的长度方向所处平面内，瓣膜（2）的截面呈V型结构，并与内侧壁相连，瓣膜（2）上设有切缝（3），用于单向导通流体。在截面为椭圆形的管壁（1）上设置V型结构的瓣膜（2），使得流体在受吸力作用下被吸出，避免了流体浪费和烫伤、沾湿使用者，能够保障使用者的人身安全。同时，瓣膜（2）能够对流体的流通起到缓冲作用，避免流体流动过快的隐患，还能够避免管壁（1）外部的流体经瓣膜（2）流入管壁内造成流体污染。

Description

一种防溢流管 技术领域
本发明属于流体配件技术领域，具体而言，本发明涉及一种防溢流管。
背景技术
在流体流动的控制中，人们希望流体在管路中的流动符合人们意愿，即：在需要流体流动时，流体按照指定方向在管路中流动；而不需要流体流动时，流体在管路中不发生溢流、倒流，以避免造成流体浪费、人员误伤。
目前，生活中的吸管大都不设置用来控制流体流动的结构，而是简单的腔体，在配合杯子使用时，杯子受压后或由于流体热证冷缩作用容易造成流体沿吸管溢出，造成资源浪费。并且，若流体温度较高时，快速接触人体容易造成烫伤，而现有的吸管并没有减缓流体流动的结构，使用时存在隐患。
发明内容
为了解决上述问题，本发明提供了一种防溢流管，其技术方案如下：
一种防溢流管，其包括：管壁和瓣膜；在垂直于所述管壁长度方向的平面上，所述管壁的内侧壁截面呈椭圆形，椭圆形可以沿椭圆长轴方向对称，也可以沿椭圆长轴方向不对称，即以椭圆形长轴所在直线将椭圆形划分为两段弧线，两段弧线的曲率可以相同也可不同；所述管壁的外侧壁截面呈封闭环状；在所述内侧壁的椭圆形长轴和所述管壁的长度方向所处平面内，所述瓣膜的截面呈V型结构，所述瓣膜关于所述内侧壁截面椭圆形的原点呈中心对称，并与所述内侧壁相连，所述瓣膜上设有切缝，用于单向导通流体。
如上述的防溢流管，进一步优选为：在垂直于所述管壁长度方向的平面上，所述管壁的外侧壁截面呈椭圆形，所述外侧壁截面的椭圆形与所述内侧壁截面的椭圆形原点重合；沿所述内侧壁的椭圆形曲线方向，所述管壁的壁厚由椭圆形短轴端点处向椭圆形长轴端点处逐渐减小。
如上述的防溢流管，进一步优选为：所述管壁在椭圆形短轴端点处的壁厚与在椭圆形长轴端点处的壁厚比值范围为2比0.9～1.2。
如上述的防溢流管，进一步优选为：所述内侧壁截面的椭圆形的长轴与短轴长度比值范围为5比3.5～4.5。
如上述的防溢流管，进一步优选为：在所述内侧壁的椭圆形长轴和所述管壁的长度方向所处平面内，所述管壁的顶端轮廓为中部向上弯曲的弧形曲线。
如上述的防溢流管，进一步优选为：所述瓣膜的V型尖角处设有加强筋，所述加强筋与所述内侧壁的椭圆形短轴共线，且所述加强筋的两端与所述管壁相连，且与椭圆形截面的短轴重合。
如上述的防溢流管，进一步优选为：在所述瓣膜上，位于所述加强筋中部开设有所述切缝，所述切缝的长度方向与所述加强筋的长度方向相同。
如上述的防溢流管，进一步优选为：所述管壁的顶面为圆弧面，所述圆弧面与所述管壁的内侧壁、外侧壁之间圆滑过渡。
如上述的防溢流管，进一步优选为：所述瓣膜距离所述管壁顶面的长度范围为5mm至20mm。
如上述的防溢流管，进一步优选为：所述管壁和所述瓣膜为一体化设置，采用热塑性弹性体材质制成。
如上述的防溢流管，进一步优选为：所述瓣膜的V型两侧壁为平面。
如上述的防溢流管，进一步优选为：所述瓣膜的V型两侧壁为中心向下弯曲的弧形曲面。
分析可知，与现有技术相比，本发明的优点和有益效果在于：
1、本发明的防溢流管在不受吸力作用时，切缝处于闭合状态，流体在瓣膜处受阻而不向外溢流。在管壁受到吸力作用时，管壁发生形变，进而带动瓣膜发生形变，瓣膜在形变时V型的两侧壁向下弯曲，切缝弯曲变形而张开，从而导通流体流通的路径，流体受吸力作用而由瓣膜处向外流通。本发明在内侧壁截面为椭圆形的管壁上设置V型结构的瓣膜，使得流体在受吸力作用下被吸出，而不会受热胀冷缩影响或杯子压力影响而溢出，避免流体浪费和烫伤、沾湿使用者，能够保障使用者的人身安全。同时，本发明的瓣膜能够 对流体的流通起到缓冲作用，避免流体流动过快的隐患，还能够避免管壁外部的流体经瓣膜流入管壁内造成流体污染。
2、本发明在内侧壁截面的椭圆形圆周方向上管壁的厚度由短轴端点处向长轴端点处逐渐变薄，能够保证管壁受吸力产生的形变为椭圆形短轴方向被压缩、长轴方向被扩张，从而控制切缝的形变，准确控制流体在管内的通断。
3、在内侧壁的椭圆形长轴和管壁的长度方向所处平面内，本发明的管壁的顶端轮廓为中部向上弯曲的弧形曲线，能够进一步保证管壁受吸力产生的形变为椭圆形短轴方向被压缩、长轴方向被扩张，从而准确控制管壁顶端的形变。
4、本发明的瓣膜的V型尖角处设有加强筋，能够对管壁产生沿椭圆形短轴方向向外的作用力，保证瓣膜的密封效果。同时，还能够提高瓣膜的疲劳寿命，增加瓣膜上切缝的启闭次数，进而提高瓣膜的使用寿命。
5、本发明管壁的顶面为圆弧面，避免了顶面边缘棱角对使用者产生割伤的隐患，顶面圆润光滑，更符合使用习惯，能够有效改善使用体感。
附图说明
图1为本发明的防溢流管的结构示意图。
图2为本发明的防溢流管的正视图。
图3为图2的剖视图。
图4为本发明的防溢流管的侧视图。
图5为图4的剖视图。
图6为本发明的防溢流管的俯视图。
图7为本发明的防溢流管的仰视图。
图8为瓣膜是弧形曲面时的示意图。
图9为本发明的防溢流管的结构示意图二。
图10为本发明的防溢流管的结构示意图三。
图11为本发明的防溢流管的结构示意图四。
图中：1-管壁；2-瓣膜；3-切缝；4-加强筋；5-顶面。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，术语“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明而不是要求本发明必须以特定的方位构造和操作，因此不能理解为对本发明的限制。
本发明中使用的术语“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接；可以是直接相连，也可以通过中间部件间接相连，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。
请参照图1至图11，其中，图1为本发明的防溢流管的结构示意图；图2为本发明的防溢流管的正视图；图3为图2的剖视图；图4为本发明的防溢流管的侧视图；图5为图4的剖视图；图6为本发明的防溢流管的俯视图；图7为本发明的防溢流管的仰视图；图8为瓣膜是弧形曲面时的示意图；图9为本发明的防溢流管的结构示意图二；图10为本发明的防溢流管的结构示意图三；图11为本发明的防溢流管的结构示意图四。。
如图1、图9、图10和图11所示，本发明提供了一种防溢流管，主要包括管壁1和瓣膜2；在垂直于管壁长度方向的平面上，管壁1的内侧壁截面呈椭圆形，椭圆形可以沿椭圆长轴方向对称，也可以沿椭圆长轴方向不对称，即以椭圆形长轴所在直线将椭圆形划分为两段弧线，两段弧线的曲率可以相同也可不同；管壁1的外侧壁截面呈封闭环状；在内侧壁的椭圆形长轴和管壁1的长度方向所处平面内，瓣膜2的截面呈V型结构，瓣膜2关于内侧壁截面椭圆形的原点呈中心对称，并与内侧壁相连，瓣膜2上设有切缝3，用于单向导通流体。
具体而言，如图1、图9和图10所示，本发明的一个实施例中，管壁1内侧壁截面呈椭圆形，椭圆形沿椭圆长轴方向对称，即以椭圆形长轴所在直 线将椭圆形划分为两段弧线，两段弧线的曲率相同；瓣膜2截面呈V型，瓣膜2上设有切缝3，在不受吸力作用时，切缝3处于闭合状态，流体在瓣膜2处受阻而不向外溢流。在管壁1受到吸力作用时，管壁1发生形变(管壁1在椭圆形短轴方向被压缩，在椭圆形长轴方向被扩张)，进而带动瓣膜2发生形变，瓣膜2在形变时V型的两侧壁向下弯曲，切缝3弯曲变形而张开，从而导通流体流通的路径，流体受吸力作用而由瓣膜2处向外流通。本发明在内侧壁截面为椭圆形的管壁1上设置V型结构的瓣膜2，使得流体在受吸力作用下被吸出，而不会受热胀冷缩影响或杯子压力影响而溢出，避免流体浪费和烫伤、沾湿使用者，能够保障使用者的人身安全。同时，本发明的瓣膜2能够对流体的流通起到缓冲作用，避免流体流动过快的隐患，还能够避免管壁1外部的流体经瓣膜2流入管壁1内造成流体污染。本发明的管壁1外侧壁截面呈封闭环状，不对封闭环状的形状做出具体限定，能够使得管壁1在受吸力作用下沿内侧壁截面椭圆形的短轴方向被压缩、在椭圆形长轴方向被扩张即可。具体地，如图1所示，本发明的外侧壁截面可以为椭圆形，增加使用者使用时的舒适度；如图9所示，本发明的外侧壁截面可以为具有两个优角的凹多边形，两个优角的中心线方向与内侧壁截面椭圆形的长轴方向重合，在受吸力作用时，外侧壁的两个优角角度变大，管壁1变形，促使切缝3张开而导通流体；如图10所示，本发明的外侧壁截面还可以为具有锯齿的椭圆形，在扎入流体的密封薄膜时锯齿处可以流通空气(例如应用于密封膜的饮品)，减小吸取流体时的吸力。如图11所示，在本发明的又一实施例中，管壁1内侧壁截面呈椭圆形，椭圆形沿椭圆长轴方向不对称，即以椭圆形长轴所在直线将椭圆形划分为两段弧线，两段弧线的曲率不同。
在使用时，本发明不对流体的类型做具体限定，可广泛应用于流体流动的导通，流体类型可以是气体，也可以是液体、胶体，同时，本发明不对管壁1的长度进行限定，可单独插入杯体内使用，也可装配在管路的端部、装配在瓶盖上使用。例如，应用于胶体的导通时，本发明可以装配于奶瓶上作为奶嘴使用，避免婴儿呛奶、烫伤；应用于液体的导通时，本发明可装配在旅行杯上，方便在室外使用而避免水的意外洒漏；应用于气体的导通时，本发明可以装配在输氧管上，配合病人的呼吸而使用，避免氧气溢流过快造成 浪费。
作为对本发明的改进，如图1至图11所示，本发明还提供了如下改良方案：
为了准确控制流体在管内的通断，如图6和图7所示，在垂直于管壁1长度方向的平面上，管壁1的外侧壁截面呈椭圆形，外侧壁截面的椭圆形与内侧壁截面的椭圆形原点重合；沿内侧壁的椭圆形曲线方向，管壁1的壁厚由椭圆形短轴端点处向椭圆形长轴端点处逐渐减小。作为优选，管壁1在椭圆形短轴端点处的壁厚与在椭圆形长轴端点处的壁厚比值范围为2比0.9～1.2；进一步的，内侧壁截面的椭圆形的长轴与短轴长度比值范围为5比3.5～4.5。本发明在椭圆形圆周方向上管壁1的厚度由短轴端点处向长轴端点处逐渐变薄，能够保证管壁1受吸力产生的形变为椭圆形短轴方向被压缩、长轴方向被扩张，从而控制切缝3的形变，准确控制流体在管内的通断。
为了准确控制管壁1顶端受吸力时的变形状态，如图2至图5所示，在内侧壁的椭圆形长轴和管壁1的长度方向所处平面内，管壁1的顶端轮廓为中部向上弯曲的弧形曲线，配合本发明椭圆形圆周方向上管壁1的厚度由短轴端点处向长轴端点处逐渐变薄这一设计，能够进一步保证管壁1受吸力产生的形变为椭圆形短轴方向被压缩、长轴方向被扩张，从而准确控制管壁1顶端的形变。
为了提高瓣膜2的密封效果和使用寿命，如图1和图3所示，瓣膜2的V型尖角处设有加强筋4，加强筋4的两端与管壁1相连，且与管壁1椭圆形截面的短轴重合。在使用时，管壁1受吸力而变形，瓣膜2受管壁1压力作用使得切缝3张开，流体导通，此时加强筋4随瓣膜2的形变而变形发生弯折；在吸力停止时，管壁1回弹，切缝3关闭，加强筋4回弹，加强筋4回弹时对管壁1产生沿椭圆形短轴方向向外的作用力，当管壁1回弹不到位时能够对管壁1的回弹进行一定的补偿，从而保证瓣膜2的密封效果。同时，本发明通过在瓣膜2的V型尖角处设置加强筋4，能够提高瓣膜2的疲劳寿命，增加瓣膜2上切缝3的启闭次数，进而提高瓣膜2的使用寿命。
为了便于控制流体的流通量和瓣膜2的密封效果，如图3、图5、图8和图9所示，本发明在瓣膜2上，位于加强筋4中部开设有切缝3，切缝3 的长度方向与加强筋4的长度方向相同，能够保证切缝3与加强筋4同步产生形变，提高瓣膜2的密封效果。进一步的，切缝3的长度不大于加强筋4的长度。
为了改善使用体感，如图1、图2和图4所示，管壁1的顶面5为圆弧面，圆弧面与管壁1的内侧壁、外侧壁之间圆滑过渡，避免了顶面5边缘棱角对使用者产生割伤的隐患，顶面5圆润光滑，更符合使用习惯，能够有效改善使用体感。
为了便于使用者吸取流体，如图3和图5所示，瓣膜2距离管壁1顶面5(瓣膜2上最高点与管壁1顶面5上最低点)的长度范围为5mm至20mm，便于瓣膜2随管壁1的形变而变形，能够减小使用者吸取流体时的吸力，便于流体受吸力时的流通。
为了便于加工装配，如图3和图5所示，本发明的管壁1和瓣膜2为一体化设置，采用热塑性弹性体材质制成，便于加工。进一步的，本发明的管壁1、瓣膜2、加强筋4采用硅胶材质经硫化工艺制成，采用的硅胶邵氏硬度数值范围在30至80，能够保证切缝3在吸力作用下的反复形变。
为了便于配合材质进行灵活设计，如图1、图3和图8所示，在本发明中，瓣膜2形状的可以为多种样式，本发明不做限定。具体的，如图1和图3所示，瓣膜2的V型两侧壁(即瓣膜2上、加强筋4两侧的两个面)为平面；如图8所示，瓣膜2的V型两侧壁(即瓣膜2上、加强筋4两侧的两个面)为中心向下弯曲的弧形曲面。弧形曲面比平面更易发生形变，因而瓣膜2形状的选取与瓣膜2的材质、硬度相匹配即可。随材质硬度的升高热塑性弹性体逐渐不易发生形变，例如，以硅胶为例，并以邵氏硬度A数值为70时分界，数值高于70时采用弧形曲面，低于70时采用平面。
由技术常识可知，本发明可以通过其它的不脱离其精神实质或必要特征的实施方案来实现。因此，上述公开的实施方案，就各方面而言，都只是举例说明，并不是仅有的。所有在本发明范围内或在等同于本发明的范围内的改变均被本发明包含。

Claims (11)

  1. 一种防溢流管，其特征在于，包括：
    管壁和瓣膜；
    在垂直于所述管壁长度方向的平面上，所述管壁的内侧壁截面呈椭圆形，所述管壁的外侧壁截面呈封闭环状；在所述内侧壁的椭圆形长轴和所述管壁的长度方向所处平面内，所述瓣膜的截面呈V型结构，并与所述内侧壁相连，所述瓣膜上设有切缝，用于单向导通流体。
  2. 根据权利要求1所述的防溢流管，其特征在于：
    在垂直于所述管壁长度方向的平面上，所述管壁的外侧壁截面呈椭圆形，所述外侧壁截面的椭圆形与所述内侧壁截面的椭圆形原点重合；沿所述内侧壁的椭圆形曲线方向，所述管壁的壁厚由椭圆形短轴端点处向椭圆形长轴端点处逐渐减小；
    优选地，所述管壁在椭圆形短轴端点处的壁厚与在椭圆形长轴端点处的壁厚比值范围为2比0.9～1.2。
  3. 根据权利要求2所述的防溢流管，其特征在于：
    所述内侧壁截面的椭圆形的长轴与短轴长度比值范围为5比3.5～4.5。
  4. 根据权利要求1所述的防溢流管，其特征在于：
    在所述内侧壁的椭圆形长轴和所述管壁的长度方向所处平面内，所述管壁的顶端轮廓为中部向上弯曲的弧形曲线。
  5. 根据权利要求1所述的防溢流管，其特征在于：
    所述瓣膜的V型尖角处设有加强筋，所述加强筋与所述内侧壁的椭圆形短轴共线，且所述加强筋的两端与所述管壁相连。
  6. 根据权利要求5所述的防溢流管，其特征在于：
    在所述瓣膜上，位于所述加强筋中部开设有所述切缝，所述切缝的长度方向与所述加强筋的长度方向相同。
  7. 根据权利要求1所述的防溢流管，其特征在于：
    所述管壁的顶面为圆弧面，所述圆弧面与所述管壁的内侧壁、外侧壁之间圆滑过渡。
  8. 根据权利要求1所述的防溢流管，其特征在于：
    所述瓣膜距离所述管壁顶面的长度范围为5mm至20mm。
  9. 根据权利要求1所述的防溢流管，其特征在于：
    所述管壁和所述瓣膜为一体化设置，采用热塑性弹性体材质制成。
  10. 根据权利要求1至9任一项所述的防溢流管，其特征在于：
    所述瓣膜的V型两侧壁为平面。
  11. 根据权利要求1至9任一项所述的防溢流管，其特征在于：
    所述瓣膜的V型两侧壁为中心向下弯曲的弧形曲面。
PCT/CN2019/101144 2019-05-27 2019-08-16 一种防溢流管 WO2020237844A1 (zh)

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