Mitral valve device

Abstract

The embodiment of the utility model discloses a mitral valve device which comprises a valve body, the valve body is composed of a valve seat and a valve sleeve which are connected with each other, the valve seat and the valve sleeve are respectively provided with a through hole and are communicated with each other to form a valve body channel, a cutting piece assembly is arranged in the valve body channel, and the cutting piece assembly comprises a first cutting piece and a second cutting piece. The first cutting piece and the second cutting piece are movably installed in the valve body channel and provided with sealing faces, and the sealing faces abut against the valve seat. When the cutting piece assembly is subjected to external force, the sealing face moves away from the valve seat so as to conduct the valve body channel. When the cutting piece assembly is not subjected to external force, the sealing face moves close to the valve seat so that the valve body channel can be closed and sealed. Compared with a traditional single-valve-clack stop valve structure, the cut-parts in the device are mutually protected in the opening and closing process, scouring and cavitation of a high-pressure medium to a sealing face can be effectively prevented, and therefore the sealing performance of the valve is improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially relates to a bicuspid valve device. BACKGROUND

[0002] The main function of the check valve is to allow fluid to flow in only one specific direction while preventing fluid from flowing in the opposite direction. This one-way control function is widely used in hydraulic systems, pneumatic systems, water systems, and other fields.

[0003] The traditional check valve design usually includes multiple precision components, such as springs, valve discs, valve seats, etc. Most check valves are usually single-valve disc stop valves. Although single-valve disc stop valves have a certain sealing performance when closed, their sealing surfaces are easily damaged due to factors such as medium scouring and cavitation, which affects the sealing effect of the valve. SUMMARY

[0004] The utility model aims at providing a bicuspid valve device to solve the technical problem that the existing single-valve disc check valve is easily damaged due to factors such as medium scouring and cavitation, which affects the sealing effect of the valve.

[0005] To solve the above technical problems, the utility model aims to achieve the following technical solutions:

[0006] The utility model provides a bicuspid valve device, which comprises a valve body, the valve body is composed of a valve seat and a valve sleeve connected to each other, the valve seat and the valve sleeve are both provided with through holes and are in communication with each other to form a valve body passage, a cutting piece assembly is arranged in the valve body passage, the cutting piece assembly comprises a first cutting piece and a second cutting piece, the first cutting piece and the second cutting piece are movably installed in the valve body passage, the first cutting piece and the second cutting piece are both provided with sealing surfaces, and the sealing surfaces respectively abut against the valve seat; when the cutting piece assembly is subjected to external force, the sealing surfaces move away from the valve seat to open the valve body passage; when the cutting piece assembly is not subjected to external force, the sealing surfaces move close to the valve seat to close and seal the valve body passage.

[0007] Further, a rotating shaft is arranged between the first cutting piece and the second cutting piece, and the rotating shaft is fixedly installed on the valve sleeve.

[0008] Further, an elastic member is arranged on the rotating shaft, and the elastic member is installed at both ends of the rotating shaft.

[0009] Further, the elastic member is a torsion spring, which is used to automatically reset the cutting piece assembly to the closed state when the cutting piece assembly is not subjected to external force.

[0010] Further, one side of the valve seat is provided with an annular protrusion, the annular protrusion and the outer periphery of the valve seat are in a stepped structure, and the cutting piece assembly is located on the other side of the valve seat.

[0011] Further, the number of the valve sleeves is two, and the two sides of the valve seat are fixedly connected with the valve sleeves respectively.

[0012] Further, the outer diameter of the valve sleeve is equal to the outer diameter of the valve seat, and the inner diameter of the through hole of the valve sleeve is greater than the inner diameter of the through hole of the valve seat.

[0013] Further, a first gap is formed between one of the valve sleeves and the annular protrusion, a first pipeline is installed in the first gap, a second gap is formed between the other valve sleeve and the cutting piece assembly, and a second pipeline is installed in the second gap.

[0014] Further, a sealing element is arranged between the first pipeline and the annular protrusion.

[0015] Further, the valve body is made of PVC-U material.

[0016] The beneficial effects of the utility model compared with the prior art are that: the utility model adopts the structure of the double-valve-petal one-way stop valve, two cutting pieces in the cutting piece assembly are opened under the action of fluid, and are closed and play a sealing role when not being acted on by fluid, the cutting piece assembly in the double-valve-petal design is relatively small in fluid scouring intensity, and the cutting pieces protect each other in the opening and closing process. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 The overall structure schematic diagram of the bicuspid valve device provided by the embodiment of the utility model is shown in the drawings.

[0019] Figure 2 The structure schematic diagram of another view of the overall structure of the bicuspid valve device provided by the embodiment of the utility model is shown in the drawings.

[0020] Figure 3 The valve body passage structure schematic diagram of the bicuspid valve device provided by the embodiment of the utility model is shown in the drawings.

[0021] Figure 4 The second pipeline is removed from the structure diagram of the mitral valve device.

[0022] Reference signs:

[0023] 1, valve seat; 11, annular protrusion; 12, first gap; 13, second gap; 2, valve sleeve; 3, valve body passage; 4, cutting piece assembly; 41, first cutting piece; 42, second cutting piece; 5, first pipeline; 6, second pipeline. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be understood that, when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0026] It should also be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, unless otherwise clearly indicated by the context, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0027] It should be further understood that the term "and / or" used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0028] Please refer to Figures 1 to 4The utility model discloses a two cusps valve device, including valve body, valve body is by the mutual connection valve seat 1 and valve sleeve 2 is formed, and valve seat 1 and valve sleeve 2 all are equipped with through -hole and mutually communicate to form valve body passageway 3, and be equipped with the piece assembly 4 in valve body passageway 3, and the piece assembly 4 includes first piece 41 and second piece 42, and first piece 41 and second piece 42 movably install in valve body passageway 3, and first piece 41 and second piece 42 all are equipped with sealing surface (not shown in the drawing), and sealing surface is respectively with valve seat 1 abuts and connects, when piece assembly 4 is under the action of external force, and sealing surface is away from valve seat 1 movement to guide valve body passageway 3, when piece assembly 4 is not under the action of external force, and sealing surface is close to valve seat 1 movement to make valve body passageway 3 close and seal.

[0029] Specifically, in the structure of the human heart, the mitral valve (also known as the left atrioventricular valve) is a crucial component that lies between the left atrium and the left ventricle of the heart. The primary function of the mitral valve is to act as a one-way valve, ensuring that blood flows only from the left atrium to the left ventricle during the heart's pumping process, and not in the reverse direction. This one-way flow mechanism is critical for the heart's efficient pumping and maintenance of systemic blood circulation. Inspired by the principle of the mitral valve's one-way valve, the present embodiment aims to apply this intricate design from nature to artificial systems or devices. By mimicking the working mechanism of the mitral valve, a new type of valve or fluid control device with similar one-way flow characteristics is developed.

[0030] Specifically, the valve body is the core component of the device, which is composed of two main parts: the valve seat 1 and the valve sleeve 2. Both the valve seat 1 and the valve sleeve 2 are designed with through-holes, and these through-holes are interconnected to form a valve body passageway 3, which is used to accommodate the piece assembly 4. The piece assembly 4 includes a first piece 41 and a second piece 42, which are movably installed within the valve body passageway 3. The size of the piece assembly 4 is smaller than the size of the entire valve body passageway 3 but larger than the size of the through-hole of the valve seat 1. This design ensures that the piece assembly 4 can partially block the through-hole of the valve seat 1 while having some space for movement within the valve body passageway 3. When the piece assembly 4 is subjected to external forces (such as fluid passage or manual operation), it will only be opened on one side. This design mimics the function of the mitral valve in the heart, allowing blood (i.e., fluid) to flow in one direction and preventing backflow. Moreover, the first piece 41 and the second piece 42 in the two cusps valve device protect each other during opening and closing, effectively preventing the erosion and cavitation of the sealing surface by high-pressure media, thereby improving the sealing performance of the valve and prolonging its service life.

[0031] In an available embodiment, a shaft (not shown in the figure) is provided between the first piece 41 and the second piece 42, and the shaft is fixedly installed on the valve sleeve 2.

[0032] Specifically, the first and second segments 41 and 42 are made of wear-resistant and corrosion-resistant materials to ensure that they can maintain good working conditions under long-term fluid scouring. The shape and size of the segments are designed according to the size of the valve sleeve 2 and the valve seat 1 to ensure that they can fit tightly together to form an effective seal. When fluid flows from one side of the valve, it will push the segment assembly 4 to rotate. Due to the presence of the rotating shaft, the segment assembly 4 can easily rotate around the rotating shaft, thereby opening the valve and allowing fluid to pass through.

[0033] In an available embodiment, the rotating shaft is provided with elastic members (not shown in the figure), which are installed at both ends of the rotating shaft.

[0034] Specifically, when the segment assembly 4 is subjected to fluid pressure or external force, it will rotate around the rotating shaft. At this time, the elastic members will play a buffering and supporting role to ensure that the segment assembly 4 can rotate smoothly. When the fluid stops flowing or flows in the opposite direction, the elastic members will also help the segment assembly 4 to return to the closed position. Due to the restoring force of the elastic members, the segment assembly 4 can return to the initial state more quickly, thereby more effectively preventing backflow.

[0035] In an available embodiment, the elastic members are torsional springs used to automatically reset the segment assembly 4 to the closed state when it is not subjected to external force.

[0036] Specifically, the torsional springs in this embodiment are made of high-elasticity, high-strength, and corrosion-resistant materials such as spring steel or stainless steel. These materials can ensure that the torsional springs maintain stable elasticity and restoring force during long-term use. The shape of the torsional springs is spiral or arc-shaped, and their size and number of turns are determined according to the weight of the segment assembly 4, the radius of rotation, and the required resetting force. One end of the torsional spring is fixed to one end of the rotating shaft, and the other end is connected to the segment assembly 4, forming a torsional spring system to ensure that the segment assembly 4 can automatically reset to the closed state when not subjected to external force.

[0037] It can be understood that the elastic members can also be other elastic structures such as leaf springs, rubber structures, etc., which can be set according to actual conditions.

[0038] As shown in Figures 1-2 and Figure 4 , one side of the valve seat 1 is provided with an annular protrusion 11, which is in a stepped structure with the outer periphery of the valve seat 1, and the segment assembly 4 is located on the other side of the valve seat 1.

[0039] Specifically, the annular protrusion 11 and the outer periphery of the valve seat 1 form a stepped structure, which helps to optimize the fluid flow path and reduce the impact of the fluid on the trim assembly 4, thereby improving the stability and durability of the valve. The trim assembly 4 is precisely placed on the other side of the annular protrusion 11, forming a gap with the valve seat 1. This gap is designed to ensure smooth movement of the trim assembly 4 during opening and closing, while reducing friction and wear between the valve seat 1.

[0040] As shown in Figures 1-4 , the number of valve sleeves 2 is two, and the two sides of the valve seat 1 are fixedly connected with the valve sleeves 2.

[0041] Specifically, the number of valve sleeves 2 in this embodiment is two, which ensures that both sides of the valve seat 1 have stable support and connection points. The two valve sleeves 2 are located on both sides of the valve seat 1 and are fixedly connected with the valve seat 1. This layout not only enhances the overall structural strength of the valve, but also provides convenience for the installation and fixation of the valve.

[0042] As shown in Figures 1-4 , the outer diameter of the valve sleeve 2 is equal to the outer diameter of the valve seat 1, and the inner diameter of the through hole of the valve sleeve 2 is greater than the inner diameter of the through hole of the valve seat 1.

[0043] Specifically, in this embodiment, the outer diameter of the valve sleeve 2 is equal to the outer diameter of the valve seat 1, which means that the connecting surface between them is matched, thereby ensuring the stability and sealing of the connection. The inner diameter of the through hole of the valve sleeve 2 is greater than the inner diameter of the through hole of the valve seat 1, which is mainly designed to optimize the fluid flow path, reduce the resistance and vortex phenomenon of the fluid when passing through the valve, thereby improving the flow capacity and efficiency of the valve.

[0044] As shown in Figures 1-2 , one of the valve sleeves 2 forms a first gap 12 with the annular protrusion 11, and a first pipe 5 is installed in the first gap 12. The other valve sleeve 2 forms a second gap 13 with the trim assembly 4, and a second pipe 6 is installed in the second gap 13.

[0045] Specifically, the first pipe 5 and the second pipe 6 in this embodiment are both water pipes, which are used to transport water flow. The first gap 12 and the second gap 13 are used to install two interconnected water pipes to achieve water flow transportation. The first pipe 5 and the second pipe 6 are fixed in their respective gaps by welding, threaded connection, flange connection or other appropriate connection methods. When the trim assembly 4 rotates to open the valve, water flow can be smoothly transported through the first pipe 5 and the second pipe 6.

[0046] In an available embodiment, a sealing member (not shown in the figure) is provided between the first pipe 5 and the annular protrusion 11.

[0047] Specifically, the sealing member is usually made of soft, high-temperature-resistant and corrosion-resistant material, such as silica gel or rubber, and its shape matches the shape of the connection to ensure the sealing effect.

[0048] In an available embodiment, the valve body is made of PVC-U material.

[0049] Specifically, PVC-U, i.e. rigid polyvinyl chloride, is a plastic material widely used in modern industry. Its raw material cost is low, compared with metal materials such as stainless steel and copper alloy, PVC-U can more effectively control the manufacturing cost after large-scale production, and has competitiveness in market price. Using PVC-U material as the valve body has many advantages, including strong corrosion resistance, energy efficiency, high cost-effectiveness, long service life and environmental protection. These advantages make PVC-U valve body have wide application prospect in water conservancy, water supply and drainage, chemical industry and other fields.

[0050] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A mitral valve device, characterized in that, The valve body is composed of a valve seat and a valve sleeve connected with each other, the valve seat and the valve sleeve are provided with through holes and communicate with each other to form a valve body channel, a cutting piece assembly is arranged in the valve body channel, the cutting piece assembly comprises a first cutting piece and a second cutting piece, the first cutting piece and the second cutting piece are movably arranged in the valve body channel, the first cutting piece and the second cutting piece are provided with sealing surfaces, and the sealing surfaces are respectively in abutment with the valve seat; when the cutting piece assembly is subjected to an external force, the sealing surfaces move away from the valve seat to open the valve body channel; when the cutting piece assembly is not subjected to an external force, the sealing surfaces move close to the valve seat to close and seal the valve body channel.

2. The mitral valve device of claim 1, wherein, A rotating shaft is arranged between the first cutting piece and the second cutting piece, and the rotating shaft is fixedly arranged on the valve sleeve.

3. The mitral valve device of claim 2, wherein, An elastic member is arranged on the rotating shaft, and the elastic member is arranged at both ends of the rotating shaft.

4. The mitral valve device of claim 3, wherein, The elastic member is a torsion spring, which is used to automatically reset the cutting piece assembly to a closed state when the cutting piece assembly is not subjected to an external force.

5. The mitral valve device of claim 1, wherein, One side of the valve seat is provided with an annular protrusion, the annular protrusion and the outer periphery of the valve seat are in a stepped structure, and the cutting piece assembly is located on the other side of the valve seat.

6. The mitral valve device of claim 5, wherein, The number of the valve sleeves is two, and the two sides of the valve seat are fixedly connected with the valve sleeves.

7. The mitral valve device of claim 6, wherein, The outer diameters of the valve sleeves and the valve seat are equal, and the inner diameter of the through hole of the valve sleeve is greater than the inner diameter of the through hole of the valve seat.

8. The mitral valve device of claim 7, wherein, A first gap is formed between one of the valve sleeves and the annular protrusion, a first pipeline is arranged in the first gap, a second gap is formed between the other valve sleeve and the cutting piece assembly, and a second pipeline is arranged in the second gap.

9. The mitral valve device of claim 8, wherein, A sealing member is arranged between the first pipeline and the annular protrusion.

10. The mitral valve device of claim 1, wherein, The valve body is made of PVC-U material.

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