TWM625877U - Overflowing prevention tube - Google Patents

Abstract

The invention belongs to the technical field of fluid fittings, and specifically, the invention relates to an overflow prevention tube, which includes a tube wall and a valve; on a plane perpendicular to the length direction of the tube wall, the cross section of the inner side wall of the tube wall is elliptical In the plane where the ellipse long axis of the inner side wall and the length direction of the tube wall are located, the cross-section of the valve is in a V-shaped structure, and is in a V-shaped structure with The inner side walls are connected, and the valve is provided with a slit for unidirectional fluid conduction. In this creation, a valve with a V-shaped structure is arranged on the tube wall with an oval cross-section, so that the fluid is sucked out under the action of suction, which avoids waste of fluid, scalding, and wetting the user, and can ensure the personal safety of the user. At the same time, the valve of the invention can buffer the flow of the fluid, avoid the hidden danger of the fluid flowing too fast, and also prevent the fluid outside the tube wall from flowing into the tube wall through the valve to cause fluid pollution.

Description

Anti-overflow pipe

The creation belongs to the technical field of fluid fittings, and specifically, the creation relates to an overflow prevention pipe.

In the control of fluid flow, people hope that the flow of fluid in the pipeline conforms to people's wishes, that is: when fluid flow is required, the fluid flows in the pipeline according to the specified direction; when fluid flow is not required, the fluid flows in the pipeline No overflow or backflow occurs to avoid waste of fluid and accidental injury to personnel.

At present, most of the straws in life are not equipped with a structure to control the flow of fluid, but a simple cavity. When used with a cup, after the cup is pressurized or due to the thermal expansion and contraction of the fluid, it is easy to cause the fluid to overflow along the straw, resulting in Waste of resources. Moreover, if the temperature of the fluid is high, rapid contact with the human body may easily cause burns, and the existing straw does not have a structure to slow down the flow of the fluid, so there are hidden dangers during use.

In order to solve the above problems, this creation provides an anti-overflow pipe, the technical solution of which is as follows:

An overflow prevention tube, comprising: a tube wall and a valve; on a plane perpendicular to the length direction of the tube wall, the cross section of the inner side wall of the tube wall is elliptical, and the ellipse can be symmetrical along the long axis of the ellipse. It can be asymmetric along the long axis of the ellipse, that is, the ellipse is divided into two arcs by the straight line where the long axis of the ellipse is located, and the curvatures of the two arcs can be the same or different; the section of the outer side wall of the pipe wall is a closed ring; In the plane where the long axis of the ellipse of the inner side wall and the length direction of the tube wall are located, the cross section of the valve is in a V-shaped structure, and the valve is centrally symmetric about the origin of the ellipse of the cross section of the inner side wall , and is connected with the inner side wall, and the valve is provided with a slit for unidirectional fluid conduction.

The above-mentioned overflow prevention pipe, further preferably, on a plane perpendicular to the length direction of the pipe wall, the cross-section of the outer side wall of the pipe wall is oval, and the oval shape of the cross-section of the outer side wall is the same as that of the inner side wall. The origin of the ellipse of the cross section coincides; along the direction of the ellipse curve of the inner side wall, the wall thickness of the pipe wall gradually decreases from the end point of the short axis of the ellipse to the end point of the long axis of the ellipse.

As mentioned above, it is further preferred that the ratio of the wall thickness of the pipe wall at the end point of the short axis of the ellipse to the wall thickness at the end point of the long axis of the ellipse is 2 to 0.9~1.2.

According to the above-mentioned overflow prevention pipe, it is further preferable that the ratio of the length of the long axis to the short axis of the ellipse of the inner side wall section is in the range of 5 to 3.5 to 4.5.

According to the above-mentioned anti-overflow pipe, it is further preferred that: in the plane where the ellipse long axis of the inner side wall and the length direction of the pipe wall are located, the top contour of the pipe wall is an arc-shaped curve with an upwardly curved middle part .

According to the above-mentioned anti-overflow pipe, it is further preferable that a reinforcing rib is provided at the V-shaped sharp corner of the valve, the reinforcing rib is collinear with the elliptical short axis of the inner side wall, and the two sides of the reinforcing rib are collinear. The ends are connected to the wall of the tube and coincide with the minor axis of the elliptical cross-section.

In the above-mentioned anti-overflow tube, it is further preferred that: 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.

According to the above-mentioned anti-overflow pipe, it is further preferred that the top surface of the pipe wall is a circular arc surface, and the circular arc surface and the inner and outer side walls of the pipe wall have a smooth transition.

According to the above-mentioned anti-overflow tube, it is further preferred that the length of the valve from the top surface of the tube wall is in the range of 5 mm to 20 mm.

In the above-mentioned anti-overflow pipe, it is further preferred that the pipe wall and the valve are integrally arranged and made of thermoplastic elastomer material.

In the above-mentioned overflow prevention pipe, it is further preferable that the two side walls of the V-shaped valve are flat.

In the above-mentioned anti-overflow pipe, it is further preferable that the two side walls of the V-shaped valve are arc-shaped curved surfaces with the center bent downward.

The analysis shows that, compared with the prior art, the advantages and beneficial effects of the present creation lie in:

1. When the anti-overflow tube of this creation is not affected by suction, the slit is in a closed state, and the fluid is blocked at the valve and does not overflow. When the tube wall is subjected to suction, the tube wall is deformed, which in turn drives the deformation of the valve. When the valve is deformed, the two side walls of the V-shaped bend downward, and the slit is bent and deformed to open, thereby leading to the path of fluid circulation, and the fluid is subjected to suction. function to flow outward from the valve. In this creation, a valve with a V-shaped structure is arranged on the tube wall with an oval cross-section of the inner side wall, 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 influence of cup pressure, avoiding fluid waste and scalding. , Wet the user to ensure the personal safety of the user. At the same time, the valve of the invention can buffer the flow of the fluid, avoid the hidden danger of the fluid flowing too fast, and also prevent the fluid outside the tube wall from flowing into the tube wall through the valve to cause fluid pollution.

2. The thickness of the pipe wall in the elliptical circumferential direction of the inner side wall section in this creation gradually becomes thinner from the short-axis end point to the long-axis end point, which can ensure that the deformation of the pipe wall caused by the suction force is elliptical in the short-axis direction. Compression, the long axis direction is expanded, so as to control the deformation of the slit and accurately control the on-off of the fluid in the tube.

3. In the plane where the elliptical long axis of the inner side wall and the length direction of the pipe wall are located, the top contour of the pipe wall in this creation is an arc curve with an upwardly curved middle part, which can further ensure that the deformation of the pipe wall 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.

4. A reinforcing rib is provided at the V-shaped sharp corner of the valve of this creation, which can generate an outward force on the tube wall along the direction of the short axis of the ellipse to ensure the sealing effect of the valve. At the same time, the fatigue life of the valve can also be improved, the opening and closing times of the slits on the valve can be increased, and the service life of the valve can be improved.

5. The top surface of the tube wall of this creation is an arc surface, which avoids the hidden danger of cutting the user from the edges and corners of the top surface. The top surface is round and smooth, which is more in line with the usage habits, and can effectively improve the feeling of use.

The technical solutions in the creative embodiment will be clearly and completely described below with reference to the accompanying drawings in the creative embodiment. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments in this creation, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of this creation.

In the description of this creation, the terms "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", " The orientations or positional relationships indicated by "top" and "bottom" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the creation rather than requiring that the creation must be constructed and operated in a specific orientation, so it cannot be understood as a Restrictions on this creation.

The terms "connected" and "connected" used in this creation should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through intermediate components. For those skilled in the art, the specific meanings of the above terms can be understood according to specific situations.

Please refer to FIGS. 1 to 11 , wherein, FIG. 1 is a schematic structural diagram of the anti-overflow pipe of the creation; FIG. 2 is a front view of the anti-overflow pipe of the creation; FIG. 3 is a cross-sectional view of FIG. 2 ; The side view of the anti-overflow pipe of the creation; Fig. 5 is the sectional view of Fig. 4; Fig. 6 is the top view of the anti-overflow pipe of the creation; Fig. 7 is the bottom view of the anti-overflow pipe of the creation; The schematic diagram of the curved surface; Figure 9 is the structural schematic diagram of the anti-overflow pipe created by the second; Figure 10 is the structural schematic diagram of the anti-overflow pipe created by the third; Figure 11 is the structural schematic diagram of the anti-overflow pipe created by the creation. Four. .

As shown in Figure 1, Figure 9, Figure 10 and Figure 11, the present invention provides an anti-overflow tube, which mainly includes a tube wall 1 and a valve 2; The cross-section of the side wall is elliptical. The ellipse can be symmetrical along the long axis of the ellipse, or it can be asymmetrical along the long axis of the ellipse, that is, the ellipse is divided into two arcs by the straight line where the long axis of the ellipse is located, and the curvatures of the two arcs can be the same. It can also be different; the section of the outer side wall of the tube wall 1 is a closed ring; the oval long axis of the inner wall and the plane of the length direction of the tube wall 1 are in the plane, the section of the valve 2 is a V-shaped structure, and the valve 2 is about the inner wall. The origin of the cross-sectional ellipse is centrally symmetric, and is connected to the inner side wall. The valve 2 is provided with a slit 3 for unidirectional fluid conduction.

Specifically, as shown in FIGS. 1 , 9 and 10 , in an embodiment of the present invention, the cross-section of the inner sidewall of the pipe wall 1 is elliptical, and the ellipse is symmetrical along the direction of the long axis of the ellipse, that is, the long axis of the ellipse is located in the direction of the ellipse. The straight line divides the ellipse into two arcs, and the curvatures of the two arcs are the same; the cross-section of the valve 2 is V-shaped, and the valve 2 is provided with a slit 3. When it is not affected by suction, the slit 3 is in a closed state, and the fluid is in the valve. 2 blocked without overflowing. When the tube wall 1 is subjected to suction, the tube wall 1 is deformed (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. When the valve 2 is deformed, V The two side walls of the valve are bent downward, and the slit 3 is bent and deformed to open, so as to conduct the path of fluid circulation, and the fluid flows outward from the valve 2 under the action of suction. In this invention, a valve 2 with a V-shaped structure is arranged on the tube wall 1 with an oval cross-section of the inner side wall, so that the fluid is sucked out under the action of suction, and will not overflow due to the influence of thermal expansion and cold contraction or the influence of cup pressure, so as to avoid waste of fluid And scald, wet users, can protect the personal safety of users. At the same time, the valve 2 of the present invention can buffer the flow of the fluid, avoid the hidden danger of the fluid flowing too fast, and also prevent the fluid outside the tube wall 1 from flowing into the tube wall 1 through the valve 2 to cause fluid pollution. The cross-section of the outer side wall of the pipe wall 1 of the present invention is a closed ring, and the shape of the closed ring is not specifically limited. The long axis direction of the shape can be expanded. Specifically, as shown in FIG. 1 , the cross-section of the outer side wall of the present invention may be oval to increase the comfort of the user; as shown in FIG. 9 , the cross-section of the outer side wall of the present invention may be a concave shape 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 side wall section. When the suction is applied, the two reflex angles of the outer side wall become larger, the pipe wall 1 is deformed, and the slit 3 is opened. And conduct the fluid; as shown in Figure 10, the cross-section of the outer side wall of this creation can also be an ellipse with sawtooth, and when the fluid is inserted into the sealing film of the fluid, the sawtooth can circulate air (for example, the beverage applied to the sealing film), reducing the Suction force when drawing fluids. As shown in Fig. 11, in another embodiment of the present invention, the cross section of the inner side wall of the pipe wall 1 is oval, and the oval is asymmetrical along the direction of the long axis of the oval, that is, the oval is divided into two parts by the straight line where the long axis of the oval is located. Two arcs have different curvatures.

In use, this creation does not specifically limit the type of fluid, and can be widely used in the conduction of fluid flow. The type of fluid can be gas, liquid, or colloid. It can be inserted into the cup for use alone, or it can be assembled at the end of the pipeline and used on the bottle cap. For example, when applied to the conduction of colloids, this creation can be assembled on a feeding bottle as a nipple to prevent babies from choking on milk and scalding; when applied to the conduction of liquids, this creation can be assembled on a travel mug, which is convenient for outdoor use and avoids water damage. When applied to the conduction of gas, this creation can be assembled on the oxygen delivery tube and used in conjunction with the patient's breathing to avoid waste of oxygen overflowing too quickly.

As an improvement to this creation, as shown in Figure 1 to Figure 11, this creation also provides the following improvement solutions:

In order to accurately control the on-off of the fluid in the pipe, as shown in Figures 6 and 7, on a plane perpendicular to the length of the pipe wall 1, the section of the outer side wall of the pipe wall 1 is oval, and the ellipse of the section of the outer side wall is the same as the The ellipse origin of the inner side wall section coincides; along the direction of the ellipse curve of the inner side wall, the wall thickness of the pipe wall 1 gradually decreases from the end point of the short axis of the ellipse to the end point of the long axis of the ellipse. Preferably, the ratio of the wall thickness of the pipe wall 1 at the end point of the short axis of the ellipse to the wall thickness at the end point of the long axis of the ellipse is in the range of 2 to 0.9~1.2; The ratio to the length of the short axis ranges from 5 to 3.5 to 4.5. In this invention, the thickness of the tube wall 1 in the elliptical circumferential direction gradually becomes thinner from the end of the short axis to the end of the long axis, which can ensure that the deformation of the tube wall 1 caused by suction becomes an ellipse that is compressed in the short axis direction, and the long axis is compressed. The direction is expanded, so as to control the deformation of the slit 3 and accurately control the on-off of the fluid in the tube.

In order to accurately control the deformation state of the top of the pipe wall 1 when it is subjected to suction, as shown in Figures 2 to 5, in the plane where the ellipse long axis of the inner side wall and the length direction of the pipe wall 1 are located, the top contour of the pipe wall 1 is The upward curved arc curve in the middle, in conjunction with the design that the thickness of the pipe wall 1 in the circumferential direction of the ellipse of this creation gradually becomes thinner from the short axis end point to the long axis end point, can further ensure that the pipe wall 1 is generated by suction. The deformation becomes an ellipse that 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 .

In order to improve the sealing effect and service life of the valve 2, as shown in Figures 1 and 3, a reinforcing rib 4 is provided at the V-shaped cusp of the valve 2, and the two ends of the reinforcing rib 4 are connected to the tube wall 1 and are connected to the tube wall. 1 The minor axes of the elliptical section coincide. When in use, the tube wall 1 is deformed by suction, and the valve 2 is affected by the pressure of the tube wall 1, so that the slit 3 is opened, and the fluid is connected. , the pipe wall 1 rebounds, the slit 3 is closed, and the reinforcing rib 4 rebounds. When the reinforcing rib 4 rebounds, an outward force is generated on the pipe wall 1 along the short axis of the ellipse. When the pipe wall 1 does not rebound in place 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 . At the same time, the present invention can improve the fatigue life of the valve 2 and increase the opening and closing times of the slit 3 on the valve 2 by setting the reinforcing rib 4 at the V-shaped sharp corner of the valve 2, thereby improving the service life of the valve 2.

In order to facilitate the control of the flow of fluid and the sealing effect of the valve 2, as shown in Figure 3, Figure 5, Figure 8 and Figure 9, the present creation is on the valve 2, and a slit 3 is opened in the middle of the reinforcing rib 4. The slit 3 The length direction of the rib 4 is the same as the length direction of the reinforcing rib 4 , which can ensure that the slit 3 and the reinforcing rib 4 deform simultaneously, and improve the sealing effect of the valve 2 . Further, the length of the slit 3 is not greater than the length of the reinforcing rib 4 .

In order to improve the feeling of use, as shown in Figure 1, Figure 2 and Figure 4, the top surface 5 of the pipe wall 1 is an arc surface, and the arc surface and the inner and outer side walls of the pipe wall 1 have a smooth transition, avoiding the need for The edges and corners of the top surface 5 may cause a hidden danger of cuts to the user, and the top surface 5 is round and smooth, which is more in line with the usage habits and can effectively improve the user's body feeling.

In order to facilitate the user to absorb fluid, as shown in Figures 3 and 5, the length of the valve 2 from the top surface 5 of the tube wall 1 (the highest point on the valve 2 and the lowest point on the top surface 5 of the tube wall 1) is in the range of 5mm to 20mm, It is convenient for the valve 2 to be deformed with the deformation of the tube wall 1, which can reduce the suction force when the user absorbs the fluid, and facilitate the circulation of the fluid when the suction force is applied.

In order to facilitate processing and assembly, as shown in Figures 3 and 5, the tube wall 1 and the valve 2 of the present invention are integrally arranged, and are made of thermoplastic elastomer material, which is convenient for processing. Further, the tube wall 1, valve 2, and reinforcing rib 4 of this creation are made of silicone material through a vulcanization process, and the Shore hardness value of the silicone used is in the range of 30 to 80, which can ensure the repeated deformation of the slit 3 under the action of suction. .

In order to facilitate flexible design according to the material, as shown in Figure 1, Figure 3 and Figure 8, in this creation, the shape of the valve 2 can be in various styles, which is not limited in this creation. Specifically, as shown in FIGS. 1 and 3 , the two side walls of the V-shaped valve 2 (that is, the two surfaces on the valve 2 and on both sides of the reinforcing rib 4 ) are planes; as shown in FIG. 8 , the V-shaped two sides of the valve 2 are flat. The side walls (that is, the two surfaces on the valve 2 and on both sides of the reinforcing rib 4 ) are arc-shaped curved surfaces with the center bent downward. The arc-shaped curved surface is more prone to deformation than the flat surface, so the selection of the shape of the valve 2 can match the material and hardness of the valve 2 . As the hardness of the material increases, thermoplastic elastomers are gradually less deformed. For example, take silicone rubber as an example, and take the Shore A value of 70 as the boundary, when the value is higher than 70, the curved surface is used, and when the value is lower than 70, the flat surface is used.

It can be known from the technical common sense that the present invention can be realized by other embodiments without departing from its spirit or essential characteristics. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of this creation or within the scope equivalent to this creation are included in this creation.

1: Pipe wall 2: valve 3: Cut seam 4: Reinforcing ribs 5: top surface

FIG. 1 is a schematic diagram of the structure of the anti-overflow pipe of the present invention. FIG. 2 is a front view of the anti-overflow pipe of the present invention. FIG. 3 is a cross-sectional view of FIG. 2 . FIG. 4 is a side view of the anti-overflow pipe of the present invention. FIG. 5 is a cross-sectional view of FIG. 4 . 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 schematic diagram of the valve when the valve is an arc-shaped curved surface. FIG. 9 is a second structural schematic diagram of the anti-overflow pipe of the present invention. FIG. 10 is a third structural schematic diagram of the anti-overflow pipe created by the present invention. FIG. 11 is a fourth schematic diagram of the structure of the anti-overflow pipe of the present invention.

1: Pipe wall

2: valve

3: Cut seam

4: Reinforcing ribs

5: top surface

Claims (11)

An overflow prevention pipe, comprising: a wall and a valve; On a plane perpendicular to the length direction of the pipe wall, the section of the inner side wall of the pipe wall is elliptical, and the section of the outer side wall of the pipe wall is a closed ring; In the plane where the length direction of the tube wall is located, the cross section of the valve is in a V-shaped structure and is connected with the inner side wall, and the valve is provided with slits for unidirectional fluid conduction. The overflow prevention pipe of claim 1, wherein: On a plane perpendicular to the length direction of the pipe wall, the section of the outer side wall of the pipe wall is oval, and the ellipse of the section of the outer side wall coincides with the origin of the ellipse of the section of the inner side wall; along the inner side wall In the direction of the ellipse curve, the wall thickness of the pipe wall gradually decreases from the end point of the short axis of the ellipse to the end point of the long axis of the ellipse; Preferably, the ratio of the wall thickness of the tube wall at the end point of the short axis of the ellipse to the wall thickness at the end point of the long axis of the ellipse is in the range of 2 to 0.9-1.2. The overflow prevention pipe of claim 2, wherein: The length ratio of the major axis to the minor axis of the ellipse of the inner side wall section ranges from 5 to 3.5 to 4.5. The overflow prevention pipe of claim 1, wherein: In the plane where the elliptical long axis of the inner side wall and the length direction of the tube wall are located, the top contour of the tube wall is an arc curve with an upwardly curved middle part. The overflow prevention pipe of claim 1, wherein: A reinforcing rib is provided at the V-shaped sharp corner of the valve, the reinforcing rib is collinear with the short axis of the ellipse of the inner side wall, and both ends of the reinforcing rib are connected with the tube wall. The overflow prevention pipe of claim 5, wherein: On the valve, the slit is formed 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 overflow prevention pipe of claim 1, wherein: The top surface of the pipe wall is a circular arc surface, and the circular arc surface has a smooth transition between the inner side wall and the outer side wall of the pipe wall. The overflow prevention pipe of claim 1, wherein: The length of the valve from the top surface of the tube wall ranges from 5 mm to 20 mm. The overflow prevention pipe of claim 1, wherein: The tube wall and the valve are integrally arranged and made of thermoplastic elastomer material. The overflow prevention pipe of any one of claims 1 to 9, wherein: The two side walls of the V-shaped valve are flat. The overflow prevention pipe of any one of claims 1 to 9, wherein: The V-shaped two side walls of the valve are arc-shaped curved surfaces with the center bent downward.

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