CN112664684A

CN112664684A - One-way valve

Info

Publication number: CN112664684A
Application number: CN202011596066.3A
Authority: CN
Inventors: 颜志红; 杨盆盆
Original assignee: Shanghai Guandao Bio Tech Co Ltd
Current assignee: Shanghai Guandao Bio Tech Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-04-16

Abstract

The invention relates to a one-way valve which comprises a drainage cylinder, a valve core and a sealing ring, wherein the drainage cylinder is arranged on the valve core; the top of the drainage cylinder is provided with a liquid inlet, and the bottom of the drainage cylinder is provided with a liquid outlet; the bottom end of the valve core is provided with a limiting block, the limiting block is matched with the liquid inlet, the size of the cross section of the top of the limiting block is larger than that of the cross section of the bottom of the limiting block, and when the limiting block is plugged into the liquid inlet, the liquid inlet is sealed; when the limiting block is taken out from the liquid inlet, the liquid inlet is opened; the sealing ring is fixed at the top end of the drainage tube; and is matched with the liquid inlet. The stopper makes the bottom of case and income liquid mouth laminating inseparabler, has improved the leakproofness of case bottom and income liquid mouth contact position effectively. Because the top cross section size of stopper is greater than bottom cross section size, when the bottom of stopper was located a drainage section of thick bamboo, the top of stopper can restrict the stopper and last the downstream, and at this moment, the outer wall of stopper closely laminated with going into the liquid mouth, has improved the leakproofness of stopper with going into liquid mouth contact position effectively.

Description

One-way valve

Technical Field

The invention relates to the technical field of traditional Chinese medicine treatment, in particular to a one-way valve.

Background

The check valve is also called a check valve or a check valve, and when liquid flows through the check valve, the liquid can only flow in one direction but can not flow in two directions. It is often used in a delivery line to control the flow of liquid in the line. The one-way valve can also be arranged at the liquid outlet of a liquid storage barrel or a decoction barrel of the traditional Chinese medicine decoction so as to control the outflow of the liquid medicine. The check valve arranged at the liquid outlet is mostly a diaphragm type check valve, the sealing effect is poor, and liquid is easy to leak from the liquid outlet. Decoct medicinal herbs bucket and stock solution bucket and need the heating usually, this just makes diaphragm formula check valve work in high temperature environment for a long time, and life is shorter, wastes time and energy when changing, has restricted work efficiency.

At present, when the traditional one-way valve is used for controlling the outflow of liquid medicine in a liquid storage barrel or a decoction barrel, the sealing performance is poor, and the liquid medicine is easy to seep out from a liquid outlet.

Disclosure of Invention

The invention provides a one-way valve, aiming at solving the problems that when the traditional one-way valve is used for controlling the outflow of liquid medicine in a liquid storage barrel or a decoction barrel, the sealing performance is poor, and the liquid medicine is easy to seep out from a liquid outlet.

The one-way valve provided for realizing the purpose of the invention comprises a drainage cylinder, a valve core and a sealing ring;

the drainage cylinder is hollow and has a structure with an opening at the top and the bottom, the top is a liquid inlet, and the bottom is a liquid outlet;

the bottom end of the valve core is provided with a limiting block, the limiting block is matched with the liquid inlet, the size of the cross section of the top of the limiting block is larger than that of the cross section of the bottom of the limiting block, and when the limiting block is plugged into the liquid inlet, the liquid inlet is sealed; when the limiting block is separated from the liquid inlet, the liquid inlet is opened;

the sealing ring is fixed at the top end of the drainage tube; and is matched with the liquid inlet.

In one embodiment, the maximum cross-sectional dimension of the top of the stopper is greater than the dimension of the fluid inlet.

In one specific embodiment, the device further comprises a support frame; the supporting frame comprises an upper fixing plate, a first lower mounting plate, a second lower mounting plate, a first connecting rod and a second connecting rod;

the planes of the upper fixing plate, the first lower mounting plate and the second lower mounting plate are parallel to each other; the top end of the first connecting rod is fixedly connected with the upper fixing plate, and the bottom end of the first connecting rod is fixedly connected with the first lower mounting plate;

the top end of the second connecting rod is fixedly connected with the bottom end of the first lower mounting plate, and the bottom end of the second connecting rod is fixedly connected with the top end of the second lower mounting plate;

the bottom inner wall of the second lower mounting disc is fixedly connected with the top outer wall of the drainage tube.

In one embodiment, a guide cylinder is fixed at the bottom end of the upper fixing plate;

the top end of the valve core is positioned in the guide cylinder.

In one specific embodiment, the device further comprises a spring; the spring is sleeved on the valve core; one end of the spring is fixedly connected with the bottom end of the guide cylinder, and the other end of the spring is fixedly connected with the outer wall of the valve body.

In one embodiment, the first lower mounting plate is a circular ring structure; the number of the first connecting rods and the second connecting rods is multiple; the first connecting rods and the second connecting rods are uniformly distributed along the circumferential direction of the first lower mounting plate; the top end of each first connecting rod is fixedly connected with the upper fixing plate, and the bottom end of each first connecting rod is fixedly connected with the first lower mounting plate; the top end of each second connecting rod is fixedly connected with the bottom end of the first lower mounting plate, and the bottom end of each second connecting rod is fixedly connected with the top end of the second lower mounting plate.

In one embodiment, the first connecting rod and the upper fixing plate and the first connecting rod and the first lower mounting plate are connected in a threaded manner;

the second connecting rod and the first lower mounting disc and the second connecting rod and the second lower mounting disc are connected in a welding mode.

In one embodiment, the upper fixing plate and the lower fixing plate are provided with threaded holes; correspondingly, threaded holes are formed in the top end and the bottom end of the first connecting rod; the first connecting rod is respectively connected with the upper fixing plate and the first lower mounting plate in a threaded mode through the threaded holes through screws.

In one embodiment, the top end of the upper fixing plate is provided with a slot structure.

In one embodiment, the side wall of the first lower mounting plate is provided with a plurality of through holes.

The invention has the beneficial effects that: according to the check valve, the limiting block is arranged at the bottom end of the valve core, so that the bottom end of the valve core is tightly attached to the liquid inlet, the sealing performance of the contact position of the bottom end of the valve core and the liquid inlet is effectively improved, and liquid is effectively prevented from seeping out of the contact position. Because the top cross section size of stopper is greater than bottom cross section size, when the bottom of stopper was located a drainage section of thick bamboo, the top of stopper can restrict the stopper and last the downstream, and at this moment, the outer wall of stopper closely laminated with going into the liquid mouth, has improved the leakproofness of stopper with going into liquid mouth contact position effectively. The inner wall at the top of the drainage tube is provided with a clamping groove, the sealing ring is clamped in the clamping groove, and the sealing ring further improves the sealing performance of the contact position of the limiting block and the liquid inlet.

Drawings

FIG. 1 is a schematic structural view of one embodiment of a check valve of the present invention;

fig. 2 is a schematic structural view of another embodiment of a check valve of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention or for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "secured," "engaged," "hinged," and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 and 2, the check valve includes a drainage cylinder 120, a valve core 110, and a sealing ring 130. The drainage tube 120 is hollow, and has an open top and an open bottom. The top of the drainage tube 120 is a liquid inlet, and the bottom is a liquid outlet. The liquid can flow in from the top opening of the drainage tube 120 and then flow out from the bottom opening of the drainage tube 120. The valve core 110 is of a long strip structure, a limiting block 111 is arranged at the bottom end of the valve core 110, and the limiting block is matched with the liquid inlet. The top cross section size of stopper 111 is greater than bottom cross section size, and when stopper 111 was plugged into the liquid mouth, it was sealed to go into the liquid mouth, and at this moment, liquid can not flow into in the drainage tube 120 from going into the liquid mouth. When stopper 111 breaks away from going into the liquid mouth, going into the liquid mouth and opening, at this moment, liquid can flow into in drainage tube 120 through going into the liquid mouth to flow out through the liquid outlet. The sealing ring 130 is fixed on the top end of the drainage tube 120 and is matched with the liquid inlet.

In this embodiment, the stopper 111 makes the bottom end of the valve element 110 and the liquid inlet tightly attached, so as to effectively improve the sealing performance of the contact position between the bottom end of the valve element 110 and the liquid inlet, and further effectively prevent the liquid from leaking out of the contact position. Because the top cross section size of stopper 111 is greater than bottom cross section size, when the bottom of stopper 111 was located drainage tube 120, stopper 111 was kept moving downwards by the restriction in the top of stopper 111, and at this moment, stopper 111's outer wall closely laminated with income liquid mouth, has improved stopper 111 effectively and has gone into the leakproofness of liquid mouth contact position. The inner wall of the top of the drainage tube 120 is provided with a clamping groove, and the sealing ring 130 is clamped in the clamping groove. Therefore, the position stability of the sealing ring 130 is high, and the sealing performance of the contact position of the limiting block 111 and the liquid inlet is further improved by the sealing ring.

Specifically, the check valve can be opened by using a valve opener matched with the check valve. The valve opener comprises a material receiving cylinder, a push rod is arranged in the material receiving cylinder, the top end of the push rod can abut against the bottom end of the valve core 110 and upwards jack up the valve core 110, so that the limiting block 111 is separated from the sealing ring 130 at the liquid inlet, liquid can conveniently flow in from the top opening of the drainage cylinder 120 and then flow out from the bottom opening of the drainage cylinder 120. When the check valve needs to be closed, the valve opener is removed, the valve core 110 moves downwards along the axial direction of the drainage cylinder under the driving of self gravity and other acting forces, and then the limiting block 111 is contacted with the sealing ring 130 at the liquid inlet to close the liquid inlet.

In an embodiment of the present invention, the maximum cross-sectional dimension of the top of the limiting block 111 is larger than the dimension of the liquid inlet. So, can prevent effectively that the stopper from following liquid inlet department and droing, and can ensure better sealed effect. The sealing ring 130 is of a circular ring structure and is made of food-grade silica gel. The drainage tube 120 is of a cylindrical structure, and the limiting block 111 is of a conical structure and is made of food-grade stainless steel.

In an embodiment of the present invention, the check valve further includes a support bracket including an upper fixing plate 161, a first lower mounting plate 162, a second lower mounting plate 163, a first connecting rod 164, and a second connecting rod 165. The planes of the upper fixing plate 161, the first lower mounting plate 162 and the second lower mounting plate 163 are parallel to each other, the top end of the first connecting rod is fixedly connected with the upper fixing plate 161, the bottom end of the first connecting rod is fixedly connected with the first lower mounting plate 162, and specifically, the first connecting rod is connected with the upper fixing plate 161 and the first connecting rod is connected with the first lower mounting plate 162 in a screwing or welding manner. In some embodiments, the first connecting rod and the upper fixing plate 161 and the first connecting rod and the first lower mounting plate 162 are connected by a screw connection, so as to facilitate the disassembly, maintenance, and assembly of the support frame. Threaded holes can be formed in the upper fixing plate 161 and the lower fixing plate, correspondingly, threaded holes are also formed in the top end and the bottom end of the first connecting rod, and the first connecting rod is in threaded connection with the upper fixing plate 161 and the first lower mounting plate 162 through the threaded holes by screws. External threads may be formed on the outer walls of the top and bottom ends of the first link, so that the first link is directly connected to the upper fixing plate 161 and the first link is directly connected to the first lower mounting plate 162 via the threaded holes and the external threads. The top end of the second link is fixedly connected to the bottom end of the first lower mounting plate 162, and the bottom end is fixedly connected to the top end of the second lower mounting plate 163. Specifically, the second link and the first lower mounting plate 162 and the second link and the second lower mounting plate 163 are all connected by welding, so that the connection stability is higher. The bottom inner wall of the second lower mounting plate 163 is fixedly connected with the top outer wall of the drainage tube 120. On the whole, the structure is more stable, and sealed effect is better.

In an embodiment of the invention, a guide cylinder is fixed at the bottom end of the upper fixing plate, and the top end of the valve core is positioned in the guide cylinder. The guide cylinder 140 can guide the top end of the valve core 110 to move along the axial direction of the guide cylinder 140, so as to prevent the top end of the valve core 110 from shifting, and further reduce the possibility of generating a gap between the bottom end of the valve body and the sealing ring 130 when the valve body falls, and further improve the sealing performance of the contact position. Here, it should be noted that the axes of the drain cylinder 120, the valve element 110, the seal ring 130, and the guide cylinder 140 are collinear. The valve further comprises a spring 150, and the spring 150 is sleeved on the valve core 110. One end of the spring 150 is fixedly connected to the bottom end of the guide cylinder 140, and the other end is fixedly connected to the outer wall of the valve body. When the valve spool 110 moves upward along the sealing ring 130, the spring 150 is in a compressed state. After the actuator rod is removed, the force of the spring 150 to restore its shape drives the valve body downward in the axial direction of the seal ring 130. The force generated by the recovery deformation of the spring 150 can make the outer wall of the stopper 111 and the inner side of the sealing ring 130 fit more closely, thereby further improving the sealing performance of the contact position of the stopper 111 and the sealing ring 130.

In an embodiment of the present invention, the upper fixing plate 161 has a circular structure, and the first lower mounting plate 162 and the second lower mounting plate 163 have circular ring structures, so that the overall appearance is more attractive. The first connecting rod 164 and the second connecting rod 165 are plural. The plurality of first connecting rods 164 and the plurality of second connecting rods 165 are uniformly distributed along the circumferential direction of the first lower mounting plate 162. The top end of each first connecting rod is fixedly connected with the upper fixing plate 161, and the bottom end is fixedly connected with the first lower mounting plate 162. The top end of each second link is fixedly connected to the bottom end of the first lower mounting plate 162, and the bottom end is fixedly connected to the top end of the second lower mounting plate 163. The plurality of first connecting rods 164 and the plurality of second connecting rods 165 enable the overall stability of the support frame to be higher.

In an embodiment of the present invention, a top end of the upper fixing plate 161 is provided with a slot structure 1611. Is arranged at the outlet of the liquid storage tank or the liquid storage barrel through a clamping groove structure 1611. The slot structure 1611 can effectively improve the stability of the connection location. In addition, a plurality of through holes are formed in the side wall of the first lower mounting plate 162, so that liquid can flow from the through holes in the side wall of the first lower mounting plate 162 to the top opening of the drainage tube 120, and the liquid outlet efficiency is effectively improved. A limiting plate is fixed on the inner wall of the drainage tube 120, a limiting hole is formed in the middle of the limiting plate, and the bottom end of the valve core 110 extends towards the bottom of the drainage tube 120 through the limiting hole. The stopper plate prevents the bottom end of the valve element 110 from moving in a shifted direction. A gap is left between the wall of the limiting hole and the outer wall of the bottom end of the valve core 110, so that liquid can flow through the limiting hole conveniently.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," "one specific embodiment," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the scope of the present invention by equivalent replacement or change according to the technical solution and the inventive concept of the present invention within the scope of the present disclosure.

Claims

1. A check valve, comprising:

the drainage tube, the valve core and the sealing ring;

the bottom end of the valve core is provided with a limiting block, the limiting block is matched with the liquid inlet, the size of the cross section of the top of the limiting block is larger than that of the cross section of the bottom of the limiting block, and when the limiting block is plugged into the liquid inlet, the liquid inlet is closed; when the limiting block is separated from the liquid inlet, the liquid inlet is opened;

the sealing ring is fixed at the top end of the drainage cylinder; and is matched with the liquid inlet.

2. The one-way valve of claim 1, wherein a maximum cross-sectional dimension of a top portion of the stopper is greater than a dimension of the inlet.

3. The one-way valve of claim 1, further comprising a support frame; the support frame comprises an upper fixing plate, a first lower mounting plate, a second lower mounting plate, a first connecting rod and a second connecting rod;

and the inner wall of the bottom end of the second lower mounting plate is fixedly connected with the outer wall of the top end of the drainage tube.

4. The check valve as claimed in claim 3, wherein a guide cylinder is fixed to a bottom end of the upper fixing plate;

the top end of the valve core is positioned in the guide cylinder.

5. The one-way valve of claim 4, further comprising a spring; the spring is sleeved on the valve core; one end of the spring is fixedly connected with the bottom end of the guide cylinder, and the other end of the spring is fixedly connected with the outer wall of the valve body.

6. The check valve of claim 5, wherein the first lower mounting disk is of annular configuration; the number of the first connecting rods and the number of the second connecting rods are multiple; the first connecting rods and the second connecting rods are uniformly distributed along the circumferential direction of the first lower mounting plate; the top end of each first connecting rod is fixedly connected with the upper fixing plate, and the bottom end of each first connecting rod is fixedly connected with the first lower mounting plate; the top end of each second connecting rod is fixedly connected with the bottom end of the first lower mounting plate, and the bottom end of each second connecting rod is fixedly connected with the top end of the second lower mounting plate.

7. The check valve of claim 3, wherein the first connecting rod is connected with the upper fixing plate and the first connecting rod is connected with the first lower mounting plate in a threaded manner;

8. The check valve as in claim 7, wherein the upper and lower retaining plates are threaded; correspondingly, the top end and the bottom end of the first connecting rod are both provided with the threaded holes; and the first connecting rod is respectively screwed with the upper fixing plate and the first lower mounting plate through the threaded hole by using screws.

9. The check valve of claim 3, wherein the top end of the upper fixing plate is provided with a clamping groove structure.

10. The check valve of claim 3, wherein the side wall of the first lower mounting plate defines a plurality of through holes.