Flap valve structural member

By setting a valve port seal ring on the inside of the valve body of the flap valve and using the transmission energy provided by the drive member to drive the valve plate movement, the problem that the flap valve cannot achieve durable sealing and use in a vacuum environment is solved, and an efficient sealing effect is achieved.

CN222746617UActive Publication Date: 2025-04-11SICHUAN JIUTIAN VACUUM TECH CO LTD
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Patent Information

Application Number
CN202421655863.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2025-04-11
Estimated Expiration
2034-07-12

AI Technical Summary

Technical Problem

Existing flip valves cannot achieve a durable seal and cannot be used in a vacuum environment due to insufficient sealing.

Method used

By setting a valve port seal ring around the valve port on the inner side of the valve body and providing transmission energy with the drive member, the valve plate is driven to move towards or away from the valve port through the transmission member, and a durable seal of the valve port is achieved.

Benefits of technology

This design improves the sealing inside the valve body, enables the flip valve to be used in a vacuum environment, and achieves a durable seal to the valve port.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of regulating valves, in particular to a flap valve structural part which comprises a valve body, a valve port sealing ring, a driving part, a transmission part and a valve plate. A valve port is formed in the valve body, and the valve port sealing ring surrounds the valve port and is arranged on the inner side of the valve body; the driving part is connected with the transmission part, the transmission part is fixedly connected with the valve plate, and the transmission part drives the valve plate to move towards or away from the valve port based on transmission energy provided by the driving part; the valve plate seals the valve port under the condition that the valve plate is attached to the valve port sealing ring. According to the flap valve structural part, the valve port sealing ring is arranged on the inner side of the valve body and surrounds the valve port, and the sealing performance of the interior of the valve body can be enhanced based on the valve port sealing ring, so that the flap valve structural part can be used in a vacuum environment; the valve plate is driven by the transmission part to move towards or away from the valve port, and due to the sustainability of transmission energy provided by the driving part, the valve plate can seal the valve port permanently.
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Description

Technical Field

[0001] The present application relates to the technical field of regulating valves, and in particular to a flap valve structure. Background Art

[0002] The flap valve, also known as the butterfly valve, is a simple regulating valve that can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays the role of cutting off and throttling in pipelines.

[0003] The flap valve has the characteristics of simple structure, small size, light weight, low material consumption, small installation size, fast switching, 90° reciprocating rotation and small driving torque. It is widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower, automobile, etc.

[0004] However, the existing flap valve is usually used in positive pressure situations, has a poor sealing structure, cannot achieve permanent sealing, or cannot be used in a vacuum environment due to the sealing performance. Utility Model Content

[0005] In view of this, an object of an embodiment of the present application is to provide a flap valve structure to solve the technical problem that the existing flap valve cannot achieve permanent sealing or cannot be used in a vacuum environment due to the sealing problem.

[0006] In a first aspect, an embodiment of the present application provides a flap valve structure, the structure comprising: a valve body, a valve port sealing ring, a driving member, a transmission member and a valve plate;

[0007] The valve body is provided with a valve port;

[0008] The valve port sealing ring is arranged on the inner side of the valve body around the valve port;

[0009] The driving member is connected to the transmission member; the driving member is configured to provide transmission energy to the transmission member;

[0010] The transmission member is fixedly connected to the valve plate; the transmission member is configured to drive the valve plate to move toward or away from the valve port based on the transmission energy;

[0011] The valve plate is configured to seal the valve port when in contact with the valve port sealing ring.

[0012] In the above implementation process, the flap valve structure includes a valve body, a valve port sealing ring, a driving member, a transmission member and a valve plate; a valve port is provided on the valve body, and a valve port sealing ring is arranged on the inner side of the valve body around the valve port; the driving member is connected to the transmission member; the driving member is configured to provide transmission energy of the transmission member; the transmission member is fixedly connected to the valve plate, and the transmission member is configured to drive the valve plate to move toward or away from the valve port based on the transmission energy; the valve plate is configured to seal the valve port when it fits with the valve port sealing ring. The flap valve structure provided in the present application is provided with a valve port sealing ring around the valve port on the inner side of the valve body, and the sealing of the valve port inside the valve body can be enhanced based on the valve port sealing ring, so that the flap valve structure can be used in a vacuum environment; and the transmission energy of the transmission member is provided by the driving member, and the valve plate is driven to move toward or away from the valve port based on the transmission energy by the transmission member. Due to the sustainability of the transmission energy provided by the driving member, the valve plate can achieve a permanent seal on the valve port. The technical problem that the existing flap valve cannot achieve a permanent seal or cannot be used in a vacuum environment due to the sealing is solved.

[0013] Optionally, in the embodiment of the present application, a transmission hole is further provided on the valve body; the transmission member includes a fluid transmission member; the fluid transmission member includes: a fluid cylinder, an eccentric rotating block, a connecting shaft and a magnetic fluid seal;

[0014] The fluid cylinder is arranged on the outside of the valve body, and the driving member is specifically configured to provide flow energy of the fluid in the fluid cylinder; the fluid cylinder is configured to receive the flow energy provided by the driving member and convert the flow energy into mechanical energy; the eccentric rotating block is arranged on the outside of the valve body; the eccentric rotating block includes a rotating end and a fixed end, and the rotating end is movably connected to the external port of the fluid cylinder to drive the rotating end to rotate based on the mechanical energy; the fixed end is fixedly connected to one end of the connecting shaft; the connecting shaft is configured to connect the eccentric rotating block and the valve plate; the valve plate is fixedly connected to the part of the connecting shaft which is located inside the valve body to realize the fixed connection between the fluid transmission member and the valve plate; the magnetic fluid seal is specifically arranged at the transmission hole to realize the sealing of the transmission hole.

[0015] In the above implementation process, the fluid cylinder can convert the flow energy provided by the driving member into mechanical energy to drive the rotating end of the eccentric rotating block to rotate; the connecting shaft simultaneously fixes the fixed end of the eccentric rotating block and the valve plate, and the rotation of the rotating end of the eccentric rotating block can be transmitted to the valve plate through the connecting shaft to drive the valve plate to move toward or away from the valve port. By setting the magnetic fluid seal at the transmission hole, dynamic sealing of the part of the connecting shaft set at the transmission hole can be achieved. Since the magnetic fluid seal can achieve zero leakage sealing, it can provide reliable protection for the sealing of the valve body, and also avoid the influence of material leakage or diffusion in ordinary seals on the cleanliness of the vacuum chamber.

[0016] Optionally, in an embodiment of the present application, the fluid transmission component also includes: a bearing, a shaft retaining ring and an end cover; the bearing is configured to be installed in a bearing groove on the valve body, and the end cover is configured to be fixed on a side of the valve body where the bearing groove is provided, so as to achieve a fixed connection between the bearing and the valve body, and based on the valve body and the end cover, the rotating surface of the bearing is limited to a plane perpendicular to the connecting shaft; the inner ring of the bearing is configured to be fixedly connected to the other end of the connecting shaft based on the shaft retaining ring.

[0017] In the above implementation process, the rotating surface of the bearing can be limited to a plane perpendicular to the connecting shaft by the valve body and the end cover, and the bearing and the other end of the connecting shaft can be fixedly connected by the shaft retaining ring, so that the other end of the connecting shaft is also fixed to the valve body. The movement of the bearing in the axial direction of the connecting shaft can also be limited by the valve body and the end cover, and the movement of the connecting shaft in the axial direction can be limited by the shaft retaining ring, thereby improving the stability of the valve plate during movement.

[0018] Optionally, in an embodiment of the present application, the bearing groove is provided on a side of the valve body away from the transmission hole; the fluid transmission component also includes: a bearing sealing ring; the bearing sealing ring is arranged around the bearing groove on the outside of the valve body; the end cover is specifically configured to be fixed on the outside of the valve body and fit to the bearing sealing ring to achieve sealing of the bearing groove.

[0019] In the above implementation process, a bearing sealing ring is arranged around the bearing groove on the outside of the valve body, and the end cover is fitted to the bearing sealing ring and fixed on the outside of the valve body, so that the bearing groove is sealed based on the end cover and the bearing sealing ring, thereby improving the sealing performance of the valve body.

[0020] Optionally, in an embodiment of the present application, the fluid transmission component also includes a movable joint; one end of the movable joint is fixedly connected to the external port of the fluid cylinder, and the other end is movably connected to the rotating end to achieve a movable connection between the rotating end and the external port of the fluid cylinder.

[0021] In the above implementation process, the distance between the external port of the fluid cylinder and the rotating end can be compensated by the movable joint, and can also play a role of buffering and shock absorption to improve the stability of the valve plate during movement.

[0022] Optionally, in an embodiment of the present application, a dovetail groove arranged around the valve port is opened on the inner side of the valve body; and the valve port sealing ring is installed in the dovetail groove.

[0023] In the above implementation process, by setting a dovetail groove around the valve port on the inner side of the valve body and installing the valve port sealing ring in the dovetail groove, the installation reliability of the valve port sealing ring can be improved and the valve port sealing ring can be prevented from falling off, thereby reducing the maintenance frequency of the flap valve structure and increasing the service life of the flap valve structure.

[0024] Optionally, in the embodiment of the present application, the valve body is specifically provided with a first valve port and a second valve port; the valve port sealing ring specifically includes a first sealing ring and a second sealing ring; the transmission member specifically includes a first transmission member and a second transmission member; the valve plate specifically includes a first valve plate and a second valve plate;

[0025] The first sealing ring is arranged on the inner side of the valve body around the first valve port, and the second sealing ring is arranged on the inner side of the valve body around the second valve port; the driving member is connected to the first transmission member and the second transmission member respectively; the driving member is specifically configured to provide transmission energy for the first transmission member and the second transmission member; the first transmission member is fixedly connected to the first valve plate, and the second transmission member is fixedly connected to the second valve plate; the first transmission member is configured to drive the first valve plate to move toward or away from the first valve port based on the transmission energy; the second transmission member is configured to drive the second valve plate to move toward or away from the second valve port based on the transmission energy; the first valve plate is configured to seal the first valve port when it is in contact with the first sealing ring; the second valve plate is configured to seal the second valve port when it is in contact with the second sealing ring.

[0026] In the above implementation process, by providing the first valve port and the second valve port on the valve body, and using the first valve plate and the second valve plate to respectively seal the first valve port and the second valve port, the transmission load of a single transmission member can be reduced and the service life of the transmission member can be increased. In addition, compared with a single valve plate, the area of ​​the first valve plate and the second valve plate is smaller, which can reduce the space required by the first valve plate and the second valve plate during the movement process, thereby reducing the volume of the valve body and realizing the miniaturization of the flap valve structure.

[0027] Optionally, in an embodiment of the present application, the first transmission member includes a first fluid transmission member, the second transmission member includes a second fluid transmission member, and the structures of the first fluid transmission member and the second fluid transmission member are consistent; the driving member includes a solenoid valve; the structural member also includes: a first tee and a second tee; the first tee includes two first-type ports and one second-type port, and the second tee includes two third-type ports and one fourth-type port; the first output port of the solenoid valve is specifically connected to the second-type port, and the second output port of the solenoid valve is specifically connected to the fourth-type port; the two first-type ports are respectively connected to the first outlet of the first fluid transmission member and the second outlet of the second fluid transmission member, and the two third-type ports are respectively connected to the first inlet of the first fluid transmission member and the second inlet of the second fluid transmission member.

[0028] In the above implementation process, since the two first-type ports are respectively connected to the first outlet of the first fluid transmission component and the second outlet of the second fluid transmission component, and the two third-type ports are respectively connected to the first inlet of the first fluid transmission component and the second inlet of the second fluid transmission component, it can ensure the synchronization of outflow from the first outlet and the second outlet, and the synchronization of inflow from the first inlet and the second inlet. In this way, the synchronous operation of the two fluid cylinders is achieved, which provides a guarantee for the synchronous sealing between the first valve port and the second valve port.

[0029] Optionally, in an embodiment of the present application, a first dovetail groove arranged around the first valve port and a second dovetail groove arranged around the second valve port are opened on the inner side of the valve body; the first sealing ring is installed in the first dovetail groove; and the second sealing ring is installed in the second dovetail groove.

[0030] In the above implementation process, by setting a first dovetail groove around the first valve port on the inner side of the valve body and installing the first sealing ring in the first dovetail groove, and setting a second dovetail groove around the second valve port on the inner side of the valve body and installing the second sealing ring in the second dovetail groove, the installation reliability of the first sealing ring and the second sealing ring can be improved, and the sealing ring can be prevented from falling off, thereby reducing the maintenance frequency of the flap valve structure and increasing the service life of the flap valve structure.

[0031] Optionally, in an embodiment of the present application, the structural member further includes: a loading member and a loading sealing ring; the loading member is configured to be installed on the outside of the valve port opening area of ​​the valve body; the loading sealing ring is arranged on the outside of the valve body around the valve port; the loading member includes a loading end, a feeding end and a loading channel located between the loading end and the feeding end, and the feeding end is configured to fit into the loading sealing ring.

[0032] In the above implementation process, uniform feeding can be achieved through the feeding piece; by arranging a feeding sealing ring around the valve opening on the outside of the valve body, the sealing between the feeding piece and the valve body can be ensured, so that the flap valve structure can be used even in a vacuum environment.

[0033] The beneficial effects of the present application are as follows: the flap valve structure provided by the present application includes a valve body, a valve port sealing ring, a driving member, a transmission member and a valve plate. By arranging a valve port sealing ring around the valve port on the inner side of the valve body, the sealing property inside the valve body can be improved based on the valve port sealing ring, so that the flap valve structure can be used in a vacuum environment; and the transmission energy of the transmission member is provided by the driving member, and the valve plate is driven toward or away from the valve port based on the transmission energy. Due to the sustainability of the transmission energy provided by the driving member, the valve plate can achieve a permanent seal on the valve port. The technical problem that the existing flap valve cannot achieve a permanent seal or cannot be used in a vacuum environment due to the sealing property is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic diagram of a first structure of a flap valve structure provided in an embodiment of the present application;

[0036] Figure 2 A schematic diagram of a second structure of a flap valve structure provided in an embodiment of the present application;

[0037] Figure 3 A schematic diagram of the structure of a fluid transmission component provided in an embodiment of the present application;

[0038] Figure 4 A schematic diagram of a third structure of a flap valve structure provided in an embodiment of the present application;

[0039] Figure 5 A schematic diagram of a fourth structure of a flap valve structure provided in an embodiment of the present application;

[0040] Figure 6 A schematic diagram of the connection relationship between the fluid transmission component and the solenoid valve provided in an embodiment of the present application.

[0041] Figure numbers: 01- flap valve structure; 10- valve body; 101- valve port; 102- transmission hole; 103- bearing groove; 104- bracket; 20- valve port sealing ring; 30- driving member; 301- solenoid valve; 3011- first output port; 3012- second output port; 40- transmission member; 401- fluid transmission member; 4011- fluid cylinder; 4012- eccentric rotating block; 4013- connecting shaft; 4014- magnetic fluid sealing member; 4015- movable joint; 4010- valve plate mounting member; 402- first transmission member; 4016- magnetic fluid sealing member; 4017- movable joint; 4018- valve plate mounting member; 402- first transmission member; 4019- magnetic fluid sealing member; 4020- magnetic fluid sealing member; 4021- magnetic fluid sealing member; 4022- magnetic fluid sealing member; 4023- magnetic fluid sealing member; 4024- magnetic fluid sealing member; 4025- movable joint; 4026- valve plate mounting member; 4027- first transmission member; 4028- magnetic fluid sealing member; 4029- magnetic fluid sealing member; 4030- magnetic fluid sealing member; 4031- magnetic fluid sealing member; 4032- magnetic fluid sealing member; 4033- magnetic fluid sealing member; 4034- magnetic fluid sealing member; 4035- magnetic fluid sealing member; 4036- magnetic fluid sealing member; 4037- magnetic fluid sealing member; 4038- magnetic fluid sealing member; 4039- magnetic fluid sealing member; 4040- magnetic fluid sealing member; 4041- magnetic fluid sealing member; 4042- magnetic fluid sealing member; 4043- magnetic fluid sealing member; 4044- magnetic fluid sealing member; 4045- magnetic 021-first fluid transmission member; 40211-first outlet; 40212-first inlet; 403-second transmission member; 4031-second fluid transmission member; 40311-second outlet; 40312-second inlet; 50-valve plate; 60-first tee; 601-first type of port; 602-second type of port; 70-second tee; 701-third type of port; 702-fourth type of port; 80-feeding member; 801-feeding end; 802-feeding end; 803-feeding channel; 90-feeding sealing ring. DETAILED DESCRIPTION

[0042] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0044] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0045] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a first structure of a flap valve structure 01 provided in an embodiment of the present application. The flap valve structure 01 includes: a valve body 10, a valve port sealing ring 20, a driving member 30, a transmission member 40 and a valve plate 50;

[0046] The valve body 10 is provided with a valve port 101;

[0047] The valve port sealing ring 20 is arranged on the inner side of the valve body 10 around the valve port 101;

[0048] The driving member 30 is connected to the transmission member 40; the driving member 30 is configured to provide transmission energy for the transmission member 40;

[0049] The transmission member 40 is fixedly connected to the valve plate 50; the transmission member 40 is configured to drive the valve plate 50 to move toward or away from the valve port based on the transmission energy;

[0050] The valve plate 50 is configured to seal the valve port 101 when in contact with the valve port seal ring 20 .

[0051] The shape of the valve body 10 may be a cube, a cuboid or a cylinder, etc., and the shape of the valve port 101 may be a rectangle, a circle or a trapezoid, etc.; the shape and size of the valve body 10 and the valve port 101 may be adjusted according to the actual application. The valve port sealing ring 20 may be made of plastic or rubber, etc. The circumference of the valve port sealing ring 20 is greater than the circumference of the valve port 101 and less than the circumference of the valve plate 50; so that the valve plate 50 can seal the valve port 101 when it fits with the valve port sealing ring 20. The valve port sealing ring 20 needs to be arranged on the periphery of the valve port 101, and the shape of the arranged valve port sealing ring 20 may be consistent with or inconsistent with the shape of the valve port 101. The driving member 30 may be implemented by a solenoid valve or a motor, etc. When the driving member 30 is implemented by a solenoid valve, the transmission member 40 may be implemented by a fluid transmission member (including a transmission member such as a cylinder or a hydraulic cylinder); when the driving member 30 is implemented by a motor, the transmission member 40 may be implemented by an electric transmission member (for example, an electric cylinder). The driving member 30 can also be realized by an oil-free driving member. The use of an oil-free driving member can prevent the oil from diffusing and polluting the vacuum environment, thereby ensuring the cleanliness of the vacuum environment. The driving member 30 and the transmission member 40 can be arranged inside the valve body 10, outside the valve body 10, or partially inside the valve body, and this application does not make any specific restrictions on this. Figure 1 The example only shows that the driving member 30 and the transmission member 40 are both arranged inside the valve body 10 . Figure 1 The dotted line in the figure represents the internal structure of the valve body 10. The shape of the valve plate 50 may be the same as or different from the shape of the valve port 101. The valve plate 50 can seal the valve port 101 when it is in contact with the valve port sealing ring 20, which means that when the valve plate 50 is in contact with the valve port sealing ring 20, the valve port sealing ring 20 does not have a sealing portion located outside the valve plate 50.

[0052] It can be seen that the flap valve structure 01 provided in the embodiment of the present application is provided with a valve port sealing ring 20 around the valve port 101 on the inner side of the valve body 10, and the sealing performance inside the valve body 10 is improved based on the valve port sealing ring 20, so that the flap valve structure 01 can be used in a vacuum environment; and the driving member 30 provides the transmission energy of the transmission member 40, and the transmission member 40 drives the valve plate 50 toward or away from the valve port based on the transmission energy. Due to the sustainability of the transmission energy provided by the driving member 30, the valve plate 50 can achieve a permanent seal on the valve port 101. This solves the problem that the existing flap valve cannot achieve a permanent seal or cannot be used in a vacuum environment due to the sealing performance.

[0053] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the second structure of the flap valve structure 01 provided in the embodiment of the present application. Figure 3 , Figure 3 A schematic diagram of the structure of a fluid transmission component 401 provided in an embodiment of the present application.

[0054] In some optional embodiments, the valve body 10 is further provided with a transmission hole 102; the transmission member 40 comprises a fluid transmission member 401; the fluid transmission member 401 comprises: a fluid cylinder 4011, an eccentric rotating block 4012, a connecting shaft 4013 and a magnetic fluid seal 4014;

[0055] The fluid cylinder 4011 is arranged on the outside of the valve body 10, and the driving member 30 is specifically configured to provide flow energy of the fluid in the fluid cylinder 4011; the fluid cylinder 4011 is configured to receive the flow energy provided by the driving member 30 and convert the flow energy into mechanical energy; the eccentric rotating block 4012 is arranged on the outside of the valve body 10; the eccentric rotating block 4012 includes a rotating end and a fixed end, and the rotating end is movably connected to the external port of the fluid cylinder 4011 to drive the rotating end to rotate based on the mechanical energy; the fixed end is fixedly connected to one end of the connecting shaft 4013; the connecting shaft 4013 is configured to connect the eccentric rotating block 4012 and the valve plate 50; the valve plate 50 is fixedly connected to the part of the connecting shaft 4013 on the inner side of the valve body 10 to realize the fixed connection between the fluid transmission member 401 and the valve plate 50; the magnetic fluid seal 4014 is specifically arranged at the transmission hole 102 to realize the sealing of the transmission hole 102.

[0056] Among them, Figure 2As shown, a bracket 104 can also be installed on the outside of the valve body 10, based on the bracket 104 to assist in supporting the fluid cylinder 4011, so as to improve the installation reliability of the fluid cylinder 4011. The fluid cylinder 4011 can be connected to the bracket 104 in a hinged manner. The size of the transmission hole 102 can be adjusted according to the size and model of the magnetic fluid seal 4014 actually used. The drive member 30 can be implemented by an electric actuator or a solenoid valve. The fluid cylinder 4011 can convert the flow energy of the fluid into mechanical energy. The fluid cylinder 4011 can be specifically a cylinder or a hydraulic cylinder. When the fluid cylinder 4011 is implemented by a cylinder, the drive member 30 can also be implemented by a pneumatic valve. Since the cylinder has a compact structure and light weight, the cylinder occupies less space. The realization of the fluid cylinder 4011 by a cylinder can effectively save installation space, which is convenient for realizing the miniaturization of the flap valve structure 01. In the case where the fluid cylinder 4011 is implemented by a cylinder, the drive member 30 can be implemented by a solenoid valve. Specifically, the output port of the solenoid valve can be connected to the air inlet and the air outlet of the cylinder respectively; by controlling the on and off current of the solenoid valve, the flow state of the gas in the cylinder can be changed, thereby providing gas flow energy to the cylinder. The rotating end of the eccentric rotating block 4012 can be movably connected to the external port of the fluid cylinder 4011 based on a movable joint. The fixed end of the eccentric rotating block 4012 can be fixedly connected to one end of the connecting shaft 4013 based on a key connection or a threaded connection. The valve plate 50 can be fixedly connected to the portion of the connecting shaft 4013 that is on the inner side of the valve body 10, such as Figure 3 The valve plate 50 can be fixedly connected to the connecting shaft based on the valve plate mounting member 4010. Figure 3 It specifically shows that the valve plate 50 is fixedly connected to the connecting shaft based on two valve plate mounting parts 4010. The magnetic fluid seal 4014 is specifically arranged at the transmission hole 102, and the transmission hole 102 can be sealed based on the magnetic fluid seal 4014 and the magnetic fluid sealing ring. In addition, the magnetic fluid seal 4014 also has good lubricity, which can reduce the wear and friction of the internal bearing of the seal, extend the sealing life, and ensure the operating stability and safety of the flap valve structure 01. It can be understood that the fluid transmission part 401 can also include some structural connectors, such as open retaining rings, washers, key structures, pins, pin shafts, screws, etc., to achieve fixed or movable connections between various components.

[0057] Please refer to Figure 4 , Figure 4 This is a schematic diagram of a third structure of the flap valve structure 01 provided in an embodiment of the present application. Figure 4Specifically shown is a side view of the flap valve structure 01. Taking the example of the drive member 30 being implemented by a solenoid valve and compressed air as the power source, the solenoid valve coil is energized to generate electromagnetic force, which drives the flow of air, thereby driving the piston of the fluid cylinder 4011 to move outward, and the linear motion of the piston is converted into the rotation of the connecting shaft 4013 through the eccentric rotating block 4012, thereby driving the connecting shaft 4013 to rotate clockwise. Since the valve plate 50 is fixedly connected to the part of the connecting shaft 4013 on the inner side of the valve body 10, when the connecting shaft 4013 rotates, it will drive the valve plate 50 to rotate, thereby opening the valve port 101.

[0058] In some optional embodiments, the fluid transmission component 401 also includes: a bearing, a shaft retaining ring and an end cover; the bearing is configured to be installed in a bearing groove 103 on the valve body 10, and the end cover is configured to be fixed on a side of the valve body 10 where the bearing groove 103 is provided, so as to achieve a fixed connection between the bearing and the valve body 10, and based on the valve body 10 and the end cover, the rotating surface of the bearing is limited to a plane perpendicular to the connecting shaft 4013; the inner ring of the bearing is configured to be fixedly connected to the other end of the connecting shaft 4013 based on the shaft retaining ring.

[0059] A bearing groove 103 may be provided on the valve body 10 . Specifically, the bearing groove 103 may be provided on the inner side or the outer side of the valve body 10 . The bearing and the valve body 10 are fixedly connected via the bearing groove 103 and the end cover. Figure 2 The case where the bearing groove 103 is opened on the outside of the valve body 10 is specifically shown. The number of shaft retaining rings can be 1 or 2. For example, when the bearing groove 103 is opened on the inner side of the valve body 10 and the number of shaft retaining rings is 1, the shaft retaining ring can be set on the side of the bearing close to the end cover, and the fixed connection between the inner ring of the bearing and the other end of the connecting shaft 4013 is achieved through the end cover (or the shoulder set on the connecting shaft 4013) and the shaft retaining ring. When the bearing groove 103 is opened on the outer side of the valve body 10 and the number of shaft retaining rings is 1, the shaft retaining ring can be set on the side of the bearing close to the end cover, and the fixed connection between the inner ring of the bearing and the other end of the connecting shaft 4013 is achieved through the shoulder set on the connecting shaft 4013 and the shaft retaining ring. The valve body 10 and the end cover can limit the rotational surface of the bearing to a plane perpendicular to the connecting shaft 4013, and the shaft retaining ring can be used to realize a fixed connection between the bearing and the other end of the connecting shaft 4013, so that the other end of the connecting shaft 4013 is also fixed to the valve body. The movement of the bearing in the axial direction of the connecting shaft 4013 can also be limited by the valve body and the end cover, and the movement of the connecting shaft 4013 in the axial direction can be limited by the shaft retaining ring, thereby improving the stability of the valve plate 50 during movement.

[0060] In some optional embodiments, a bearing groove 103 is provided on the side of the valve body 10 away from the transmission hole 102; the fluid transmission component 401 also includes: a bearing sealing ring; the bearing sealing ring is arranged around the bearing groove 103 on the outside of the valve body 10; the end cover is specifically configured to be fixed on the outside of the valve body 10 and fit to the bearing sealing ring to achieve sealing of the bearing groove 103.

[0061] The size of the bearing groove 103 can be adjusted according to the size and model of the bearing actually selected. The bearing seal ring is specifically arranged on the periphery of the bearing groove 103, and the circumference of the bearing seal ring is greater than the hole circumference of the bearing groove 103 and less than the outer circumference of the end cover. By arranging the bearing seal ring around the bearing groove 103 on the outer side of the valve body 10, and fitting the end cover to the bearing seal ring and fixing it on the outer side of the valve body 10, the bearing groove 103 is sealed based on the end cover and the bearing seal ring, thereby improving the sealing performance of the valve body 10.

[0062] In some optional embodiments, the fluid transmission component 401 also includes a movable joint 4015; one end of the movable joint 4015 is fixedly connected to the external port of the fluid cylinder 4011, and the other end is movably connected to the rotating end to achieve a movable connection between the rotating end and the external port of the fluid cylinder 4011.

[0063] The movable joint 4015 may be a fisheye joint or a floating joint, etc. The movable joint 4015 can compensate for the distance between the external port and the rotating end of the fluid cylinder 4011 and can also play a role in buffering and shock absorption to improve the stability of the valve plate 50 during movement.

[0064] In some optional embodiments, a dovetail groove is formed on the inner side of the valve body 10 and is arranged around the valve port 101 ; the valve port sealing ring 20 is installed in the dovetail groove.

[0065] The cross-sectional shape of the dovetail groove along the extension direction of the dovetail groove may be a trapezoid or a T-shape, etc. By providing a dovetail groove around the valve port 101 on the inner side of the valve body 10 and installing the valve port sealing ring 20 in the dovetail groove, the installation reliability of the valve port sealing ring 20 can be improved, and the valve port sealing ring 20 can be prevented from falling off, thereby reducing the maintenance frequency of the flap valve structure 01 and increasing the service life of the flap valve structure 01.

[0066] Please refer to Figure 5 , Figure 5 This is a schematic diagram of the fourth structure of the flap valve structure 01 provided in an embodiment of the present application.

[0067] In some optional embodiments, the valve body 10 is specifically provided with a first valve port and a second valve port; the valve port sealing ring 20 specifically includes a first sealing ring and a second sealing ring; the transmission member 40 specifically includes a first transmission member 402 and a second transmission member 403; the valve plate 50 specifically includes a first valve plate and a second valve plate; the first sealing ring is arranged on the inner side of the valve body 10 around the first valve port, and the second sealing ring is arranged on the inner side of the valve body 10 around the second valve port; the driving member 30 is connected to the first transmission member 402 and the second transmission member 403 respectively; the driving member 30 is specifically configured to provide a first transmission member The first transmission member 402 is fixedly connected to the first valve plate, and the second transmission member 403 is fixedly connected to the second valve plate; the first transmission member 402 is configured to drive the first valve plate to move toward or away from the first valve port based on the transmission energy; the second transmission member 403 is configured to drive the second valve plate to move toward or away from the second valve port based on the transmission energy; the first valve plate is configured to seal the first valve port when it is in contact with the first sealing ring; the second valve plate is configured to seal the second valve port when it is in contact with the second sealing ring.

[0068] Among them, the shapes and sizes of the first valve body, the second valve body, the first valve port and the second valve port can be adjusted according to the actual application. The manufacturing materials of the first sealing ring and the second sealing ring may include plastic or rubber. The circumference of the first sealing ring is greater than the circumference of the first valve port and smaller than the circumference of the first valve plate; so that the first valve plate can seal the first valve port when it fits with the first sealing ring. The circumference of the second sealing ring is greater than the circumference of the second valve port and smaller than the circumference of the second valve plate; so that the second valve plate can seal the second valve port when it fits with the second sealing ring. The first sealing ring needs to be arranged on the periphery of the first valve port, and the shape of the arranged first sealing ring may be consistent with the shape of the first valve port, or may not be consistent. The second sealing ring needs to be arranged on the periphery of the second valve port, and the shape of the arranged second sealing ring may be consistent with the shape of the second valve port, or may not be consistent. When the driving member 30 is implemented by a solenoid valve, the first transmission member 402 and the second transmission member 403 can be specifically implemented by fluid transmission members (including transmission members such as cylinders or hydraulic cylinders); when the driving member 30 is implemented by a motor, the first transmission member 402 and the second transmission member 403 can be specifically implemented by electric transmission members. Figure 5 Specifically, the first transmission member 402 and the second transmission member 403 are arranged relatively outside the valve body 10 .

[0069] Figure 5 The driving member 30 is shown as being implemented by a solenoid valve 301. Figure 6 , Figure 6 A schematic diagram of the connection relationship between the fluid transmission component and the solenoid valve provided in an embodiment of the present application.

[0070] In some optional embodiments, the first transmission member 402 includes a first fluid transmission member 4021, the second transmission member 403 includes a second fluid transmission member 4031, and the first fluid transmission member 4021 and the second fluid transmission member 4031 have the same structure; the driving member 30 includes a solenoid valve 301; the flap valve structure 01 also includes: a first three-way 60 and a second three-way 70; the first three-way 60 includes two first-type ports 601 and one second-type port 602, and the second three-way 70 includes two third-type ports 701 and one fourth-type port 702. 02; the first output port 3011 of the solenoid valve 301 is specifically connected to the second type of port 602, and the second output port 3012 of the solenoid valve 301 is specifically connected to the fourth type of port 702; the two first type ports 601 are respectively connected to the first outlet port 40211 of the first fluid transmission component 4021 and the second outlet port 40311 of the second fluid transmission component 4031, and the two third type ports 701 are respectively connected to the first inlet port 40212 of the first fluid transmission component 4021 and the second inlet port 40312 of the second fluid transmission component 4031.

[0071] The first fluid transmission element 4021 and the second fluid transmission element 4031 can both be made of Figure 3 The structural implementation of the fluid transmission component shown. The first type of port 601 can be the inlet of the first tee 60, or it can be the outlet of the first tee 60; when the first type of port 601 is used as the inlet, the second type of port 602 is used as the outlet. Correspondingly, the third type of port 701 can be the inlet of the second tee 70, or it can be the outlet of the second tee 70; when the third type of port 701 is used as the inlet, the fourth type of port 702 is used as the outlet. The first inlet 40212 of the first fluid transmission component 4021 can also be used as an outlet, and the first outlet 40211 can also be used as an inlet; accordingly, the second inlet 40312 of the second fluid transmission component 4031 can also be used as an outlet, and the second outlet 40311 can also be used as an inlet. It should be noted that, Figure 6 It is only exemplarily shown that the first type of opening 601 is used as the outlet, the second type of opening 602 is used as the inlet; the third type of opening 701 is used as the inlet, and the fourth type of opening 702 is used as the outlet; and the first outlet 40211 and the second outlet 40311 are actually used as the inlet, and the first inlet 40212 and the second inlet 40312 are actually used as the outlet. The flow direction of the fluid can also be different from Figure 6The flow directions shown in are opposite. Since the two first-type ports 601 are respectively connected to the first outlet 40211 of the first fluid transmission member 4021 and the second outlet 40311 of the second fluid transmission member 4031, and the two third-type ports 701 are respectively connected to the first inlet 40212 of the first fluid transmission member 4021 and the second inlet 40312 of the second fluid transmission member 4031, the outflow / inflow synchronization of the first outlet 40211 and the second outlet 40311, and the inflow / outflow synchronization of the first inlet 40212 and the second inlet 40312 can be ensured. In this way, the synchronous operation of the two fluid cylinders 4011 is achieved, which provides a guarantee for the synchronous sealing between the first valve port and the second valve port.

[0072] In some optional embodiments, the inner side of the valve body 10 is provided with a first dovetail groove arranged around the first valve port and a second dovetail groove arranged around the second valve port; the first sealing ring is installed in the first dovetail groove; and the second sealing ring is installed in the second dovetail groove.

[0073] The cross-sectional shape of the first dovetail groove along the extension direction of the first dovetail groove and the cross-sectional shape of the second dovetail groove along the extension direction of the second dovetail groove may be a trapezoid or a T-shaped shape, etc. By providing the first dovetail groove around the first valve port on the inner side of the valve body 10 and installing the first sealing ring in the first dovetail groove, and providing the second dovetail groove around the second valve port on the inner side of the valve body 10 and installing the second sealing ring in the second dovetail groove, the installation reliability of the first sealing ring and the second sealing ring can be improved, and the sealing ring can be prevented from falling off, so as to reduce the maintenance frequency of the flap valve structure 01 and increase the service life of the flap valve structure 01.

[0074] In some optional embodiments, the flap valve structure 01 also includes: a loading piece 80 and a loading sealing ring 90; the loading piece 80 is configured to be installed on the outside of the valve port opening area of ​​the valve body 10; the loading sealing ring 90 is arranged on the outside of the valve body 10 around the valve port 101; the loading piece 80 includes a loading end 801, a feed end 802 and a loading channel 803 located between the loading end 801 and the feed end 802, and the feed end 802 is configured to fit into the loading sealing ring 90.

[0075] The material of the feeding seal ring 90 may include plastic or rubber. The outer perimeter of the feeding seal ring 90 may be greater than the outer perimeter of the end opening of the feeding end 802 to ensure the sealing between the feeding member 80 and the valve body 10; the outer perimeter of the feeding seal ring 90 may be consistent with the outermost perimeter of the feeding end 802, or may be greater than or less than the outermost perimeter of the feeding end 802. It should be noted that Figure 6The placement position of the feeding seal ring 90 is only shown as an example, and the specific shape or circumference of the feeding seal ring 90 can be adjusted according to actual conditions. The feeding piece 80 can achieve uniform feeding; by arranging the feeding seal ring 90 around the valve port 101 outside the valve body 10, the sealing between the feeding piece 80 and the valve body 10 can be ensured, so that the flap valve structure 01 can be used even in a vacuum environment.

[0076] In the several embodiments provided in the embodiments of the present application, it should be understood that the disclosed device / structure can also be implemented in other ways. The above description is only an optional implementation of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the embodiments of the present application, which should be covered within the protection scope of the embodiments of the present application.

Claims

1. A flap valve structure, characterized in that: The structural parts include: a valve body, a valve port sealing ring, a driving part, a transmission part and a valve plate; The valve body is provided with a valve port; The valve port sealing ring is arranged on the inner side of the valve body around the valve port; The driving member is connected to the transmission member; the driving member is configured to provide transmission energy to the transmission member; The transmission member is fixedly connected to the valve plate; the transmission member is configured to drive the valve plate to move toward or away from the valve port based on the transmission energy; The valve plate is configured to seal the valve port when in contact with the valve port sealing ring.

2. The structural member according to claim 1, characterized in that: in, The valve body is also provided with a transmission hole; the transmission member includes a fluid transmission member; The fluid transmission component comprises: a fluid cylinder, an eccentric rotating block, a connecting shaft and a magnetic fluid seal; The fluid cylinder is arranged on the outer side of the valve body, and the driving member is specifically configured to provide flow energy of the fluid in the fluid cylinder; the fluid cylinder is configured to receive the flow energy provided by the driving member and convert the flow energy into mechanical energy; The eccentric rotating block is arranged on the outer side of the valve body; the eccentric rotating block comprises a rotating end and a fixed end, the rotating end is movably connected to the external port of the fluid cylinder so as to drive the rotating end to rotate based on the mechanical energy; the fixed end is fixedly connected to one end of the connecting shaft; The connecting shaft is configured to connect the eccentric rotating block and the valve plate; the valve plate is fixedly connected to the portion of the connecting shaft located inside the valve body to achieve a fixed connection between the fluid transmission member and the valve plate; The magnetic fluid seal is specifically arranged at the transmission hole to achieve sealing of the transmission hole.

3. The structural member according to claim 2, characterized in that: The fluid transmission member also includes: a bearing, a shaft retaining ring and an end cover; The bearing is configured to be installed in a bearing groove on the valve body, and the end cover is configured to be fixed to a side of the valve body provided with the bearing groove, so as to realize a fixed connection between the bearing and the valve body, and limit the rotational surface of the bearing to a plane perpendicular to the connecting axis based on the valve body and the end cover; The inner ring of the bearing is configured to be fixedly connected to the other end of the connecting shaft based on the shaft retaining ring.

4. The structural member according to claim 3, characterized in that: in, The bearing groove is provided on one side of the valve body away from the transmission hole; the fluid transmission member further comprises: a bearing sealing ring; The bearing sealing ring is arranged on the outer side of the valve body around the bearing groove; The end cover is specifically configured to be fixed on the outside of the valve body and to fit the bearing sealing ring to achieve sealing of the bearing groove.

5. The structural member according to claim 2, characterized in that: The fluid transmission member also includes a movable joint; One end of the movable joint is fixedly connected to the external port of the fluid cylinder, and the other end is movably connected to the rotating end, so as to realize the movable connection between the rotating end and the external port of the fluid cylinder.

6. The structural member according to claim 1, characterized in that: in, A dovetail groove is provided on the inner side of the valve body around the valve port; and the valve port sealing ring is installed in the dovetail groove.

7. The structural member according to claim 1, characterized in that: in, The valve body is specifically provided with a first valve port and a second valve port; The valve port sealing ring specifically includes a first sealing ring and a second sealing ring; the transmission member specifically includes a first transmission member and a second transmission member; the valve plate specifically includes a first valve plate and a second valve plate; The first sealing ring is arranged on the inner side of the valve body around the first valve port, and the second sealing ring is arranged on the inner side of the valve body around the second valve port; The driving member is connected to the first transmission member and the second transmission member respectively; the driving member is specifically configured to provide transmission energy to the first transmission member and the second transmission member; The first transmission member is fixedly connected to the first valve plate, and the second transmission member is fixedly connected to the second valve plate; the first transmission member is configured to drive the first valve plate to move toward or away from the first valve port based on the transmission energy; the second transmission member is configured to drive the second valve plate to move toward or away from the second valve port based on the transmission energy; The first valve plate is configured to seal the first valve port when in contact with the first sealing ring; the second valve plate is configured to seal the second valve port when in contact with the second sealing ring.

8. The structural member according to claim 7, characterized in that: in, The first transmission member includes a first fluid transmission member, the second transmission member includes a second fluid transmission member, and the first fluid transmission member and the second fluid transmission member have the same structure; the driving member includes a solenoid valve; The structural member further comprises: a first tee and a second tee; the first tee comprises two first-type ports and one second-type port, and the second tee comprises two third-type ports and one fourth-type port; The first output port of the solenoid valve is specifically connected to the second type of port, and the second output port of the solenoid valve is specifically connected to the fourth type of port; The two first-type ports are respectively connected to the first outlet of the first fluid transmission component and the second outlet of the second fluid transmission component, and the two third-type ports are respectively connected to the first inlet of the first fluid transmission component and the second inlet of the second fluid transmission component.

9. The structural member according to claim 7, characterized in that: in, The inner side of the valve body is provided with a first dovetail groove arranged around the first valve port and a second dovetail groove arranged around the second valve port; The first sealing ring is installed in the first dovetail groove; the second sealing ring is installed in the second dovetail groove.

10. The structural member according to claim 1, characterized in that: The structural parts also include: a feeding part and a feeding sealing ring; The feeding member is configured to be installed outside the valve opening area of ​​the valve body; The feeding sealing ring is arranged on the outer side of the valve body around the valve port; The loading piece comprises a loading end, a feeding end and a loading channel located between the loading end and the feeding end, and the feeding end is configured to fit the loading sealing ring.