A one-way valve with adjustable opening force

Abstract

The present application discloses a one-way valve with adjustable opening force, which relates to the field of valve technology, including: a valve seat, a valve cover, a valve core, an adjustment assembly and a manual operation assembly; the valve seat at least includes: a first connecting pipe, a first baffle and an inlet pipe; the valve cover at least includes: a second connecting pipe, a second baffle and an outlet pipe; the valve core at least includes: a third baffle, a valve core pipe provided with at least one flow hole and an annular mounting seat; the annular mounting seat is provided with a first magnet assembly; the adjustment assembly includes an adjustment ring plate of various thicknesses; the manual operation assembly at least includes: a manual rotating part and a locking nut; a second magnet assembly is provided on one side of the manual rotating part. The present application can open or close the one-way valve with adjustable opening force by manual operation, can discharge the medium downstream of the one-way valve with adjustable opening force; and can adjust the opening force of the one-way valve with adjustable opening force according to different opening requirements.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a one-way valve with adjustable opening force. Background Art

[0002] A one-way valve, also known as a non-return valve or a check valve, is a fitting used in a pipeline to achieve a one-way shut-off function for the medium. It enables the medium to flow in one direction in the pipeline without being able to flow back. For example, using a one-way valve in a hydraulic system can prevent the oil from flowing in the opposite direction; using a one-way valve in a pneumatic system can prevent the compressed air from flowing in the opposite direction.

[0003] Traditional one-way valves use springs to drive the valve core to control the flow direction of the medium and achieve one-way sealing. However, setting a spring in the one-way valve will increase the design length of the one-way valve, thereby increasing the weight of the one-way valve. During long-term storage, the spring in the one-way valve is prone to elastic failure, spring solidification after rust, spring displacement leading to spring failure, etc., which in turn leads to adverse risks such as one-way valve function failure, failure to open, loose closure or inability to close. During use, the spring in the one-way valve will increase the gas-liquid flow resistance, and it is easy to absorb impurities in the fluid medium, causing the one-way valve to become stuck and fail, and fail to open; the spring in the one-way valve is also prone to failure or reduced elasticity due to frequent vibrations during operation. The spring set in the traditional one-way valve has different materials, diameters, pitches and / or tempering processes, so the actual elastic force of the spring is different, which will lead to different opening forces of the one-way valve. The same batch of traditional one-way valves has the same requirements for spring material, diameter, pitch and / or tempering process, but in the actual production process, there are still production errors in the same batch of springs, making it difficult to ensure the consistency of the elastic force of the springs after production. Therefore, it is also difficult to ensure that the opening force of the traditional one-way valve is fixed. The traditional one-way valve cannot accurately control the opening force according to the actual opening force requirements.

[0004] In addition, when a conventional one-way valve is used in ground equipment, it is not possible to manually control the opening or closing of the conventional one-way valve, and it is not possible to discharge the medium (eg, gas or liquid) downstream of the conventional one-way valve.

[0005] Therefore, it is necessary to propose a new one-way valve with adjustable opening force to solve the problems of traditional one-way valves. Summary of the invention

[0006] The purpose of the present application is to provide a one-way valve with adjustable opening force, which solves the problems of traditional one-way valves using springs to drive the valve core; when the one-way valve with adjustable opening force of the present application is used in ground equipment, the one-way valve with adjustable opening force can be opened or closed by manual operation, and the medium (for example: gas and liquid) downstream of the one-way valve with adjustable opening force can be discharged; the opening force of the one-way valve with adjustable opening force can be adjusted according to different opening requirements.

[0007] To achieve the above-mentioned purpose, the present application provides a one-way valve with adjustable opening force, comprising: a valve seat, a valve cover, a valve core, an adjustment component and a manual operation component; wherein the valve seat at least comprises: a first connecting pipe, a first baffle and an inlet pipe; one end of the first connecting pipe is connected to one side of the first baffle; one end of the inlet pipe is connected to the other side of the first baffle; an inlet through hole is provided on the first baffle, and the inlet pipe and the first connecting pipe are connected through the inlet through hole; the valve cover at least comprises: a second connecting pipe, a second baffle and an outlet pipe; one end of the second connecting pipe is connected to one side of the second baffle; the other end of the second connecting pipe is detachably connected to the other end of the first connecting pipe, and after the connection, the valve seat The valve body shell with a accommodating cavity is formed with the valve cover; one end of the outlet pipe is connected to the other side of the second baffle; an outlet through hole is provided on the second baffle, and the outlet pipe and the second connecting pipe are connected through the outlet through hole; the valve core at least comprises: a third baffle, a valve core pipe provided with at least one flow hole and an annular mounting seat; the diameter of the third baffle is larger than the diameter of the inlet through hole, and the diameter of the third baffle is smaller than the diameter of the accommodating cavity; the diameter of the annular mounting seat is larger than the diameter of the outlet through hole, the diameter of the annular mounting seat is smaller than the diameter of the accommodating cavity, and the diameter of the annular mounting seat is larger than the diameter of the third baffle; one side of the third baffle is connected to one end of the valve core pipe; one side of the annular mounting seat is connected to the other end of the valve core pipe The valve body is connected to the valve stem of the present invention; a first magnet assembly is arranged on the other side of the annular mounting seat; the first magnet assembly includes: at least one first S-pole magnet and at least one first N-pole magnet, and the first S-pole magnet and the first N-pole magnet are arranged at intervals; the valve core is slidably arranged in the accommodating cavity, and the other side of the third baffle plate faces the inlet through hole, and one side of the annular mounting seat is arranged with the first magnet assembly facing the outlet through hole; the adjustment assembly includes adjustment ring plates of various thicknesses; at least one adjustment ring plate is selected from the adjustment assembly according to the opening force requirement, and the selected adjustment ring plate is arranged on the outer side of the outlet pipe, and the selected adjustment ring plate is detachably connected to the outlet pipe. After the connection, one side of the selected adjustment ring plate is connected to the other side of the second baffle plate. One side contacts; the manual operation assembly at least includes: a manual rotating part and a fixing nut; a second magnet assembly is arranged on one side of the manual rotating part; the second magnet assembly includes: at least one second S-pole magnet and at least one second N-pole magnet, the second S-pole magnet and the second N-pole magnet are arranged at intervals; the number of the second S-pole magnets is equal to the number of the first S-pole magnets; the number of the second N-pole magnets is equal to the number of the first N-pole magnets; the manual rotating part is sleeved on the outside of the outlet pipe, and the second magnet assembly contacts the other side of the selected adjustment ring plate; the fixing nut is arranged on the outside of the outlet pipe and is detachably connected to the outlet pipe, and after connection, one side of the fixing nut contacts the other side of the manual rotating part;The manual rotating part is rotated to align the first S-pole magnet of the first magnet assembly with the second S-pole magnet of the second magnet assembly, and the first N-pole magnet of the first magnet assembly with the second N-pole magnet of the second magnet assembly, so that the first magnet assembly and the second magnet assembly generate repulsion, thereby realizing the closing action; the manual rotating part is rotated to align the first S-pole magnet of the first magnet assembly with the second N-pole magnet of the second magnet assembly, and the first N-pole magnet of the first magnet assembly with the second S-pole magnet of the second magnet assembly, so that the first magnet assembly and the second magnet assembly generate attraction, thereby realizing the opening action. ;

[0008] As above, the outer side of the outlet pipe is provided with an outer pipe thread, the inner side of the adjusting ring plate is provided with an inner ring plate thread, and the adjusting ring plate is connected with the outer pipe thread of the outlet pipe through the inner ring plate thread.

[0009] As above, wherein an internal thread of the manual rotating part is provided on the inner side of the manual rotating part, and the manual rotating part is connected with the external thread of the pipe of the outlet pipe through the internal thread of the rotating part.

[0010] As above, a fixing internal thread is arranged on the inner side of the fixing nut, and the fixing nut is connected with the pipe external thread of the outlet pipe through the fixing internal thread.

[0011] As above, when multiple adjusting ring plates are selected, the multiple selected adjusting ring plates are all arranged on the outside of the outlet pipe, and each selected adjusting ring plate is detachably connected to the outlet pipe. After connection, one side of the first adjusting ring plate contacts the other side of the second baffle, the other side of the first adjusting ring plate contacts the one side of the second adjusting ring plate, the other side of the second adjusting ring plate contacts the one side of the third adjusting ring plate, ..., one side of the last adjusting ring plate contacts the other side of the second-to-last adjusting ring plate, and the other side of the last adjusting ring plate contacts the second magnet assembly.

[0012] As above, there are two first S-pole magnets and two first N-pole magnets; one end of a first S-pole magnet is adjacent to one end of a first N-pole magnet, the other end of a first N-pole magnet is adjacent to one end of another first S-pole magnet, the other end of another first S-pole magnet is adjacent to one end of another first N-pole magnet, and the other end of another first N-pole magnet is adjacent to the other end of a first S-pole magnet; there are two second S-pole magnets and two second N-pole magnets; one end of a second S-pole magnet is adjacent to one end of a second N-pole magnet, the other end of a second N-pole magnet is adjacent to one end of another second S-pole magnet, the other end of another second S-pole magnet is adjacent to one end of another second N-pole magnet, and the other end of another second N-pole magnet is adjacent to the other end of a second S-pole magnet.

[0013] As above, a plurality of anti-slip grooves are provided on the outer side of the manual rotating part.

[0014] As above, wherein a first sealing ring is provided on the other side of the third baffle plate; the valve seat also includes: a sealing ring plate; the sealing ring plate is located in the first connecting pipe, one end of the sealing ring plate is connected to one side of the first baffle plate, and the sealing ring plate is aligned with the inlet through hole, and the diameter of the sealing ring plate is equal to the diameter of the inlet through hole; when the first magnet assembly and the second magnet assembly generate repulsive force, and no pressure difference is generated between the inlet through hole and the outlet through hole, the valve core moves toward the inlet through hole, and the first sealing ring fits with the other end of the sealing ring plate, thereby closing the inlet through hole.

[0015] As above, the valve seat also includes: a plurality of valve core limit blocks, one end of each valve core limit block is connected to one side of the first baffle plate, and the outer side of each valve core limit block is connected to the inner side of the first connecting pipe; a plurality of valve core limit blocks are arranged at uniform intervals around the axis of the first connecting pipe as the center line; a plurality of guide protrusions are arranged on the outer side of the valve core pipe, and the plurality of guide protrusions are arranged at uniform intervals around the axis of the valve core pipe as the center line, and when the first sealing ring is fitted with the other end of the sealing ring plate, the guide protrusions are located between adjacent valve core limit blocks.

[0016] As above, a first protrusion is arranged on the outer side of one end of the first connecting pipe connected to the first baffle; a second protrusion is arranged on the outer side of one end of the second connecting pipe connected to the second baffle; a first mark is arranged on the outer side of the manual rotating part, and a second mark and a third mark are arranged on the outer side of the first protrusion or the outer side of the second protrusion; the manual rotating part is rotated, when the first mark is aligned with the second mark, the first magnet assembly and the second magnet assembly generate repulsive force, thereby realizing the closing action; when the first mark is aligned with the third mark, the first magnet assembly and the second magnet assembly generate attractive force, thereby realizing the opening action.

[0017] The beneficial effects achieved by this application are as follows:

[0018] (1) The present application can adjust the opening force of a one-way valve with adjustable opening force according to different opening requirements, for example: by controlling the magnetization amount and / or the volume of the magnet, the opening force of the one-way valve can be accurately controlled; by changing the distance between the first magnet assembly and the second magnet assembly by selecting an adjustment ring plate, the purpose of changing the opening force of the one-way valve can be achieved.

[0019] (2) When the one-way valve with adjustable opening force of the present application is used in ground equipment, the one-way valve with adjustable opening force can be opened or closed by manual operation, and the medium (for example, gas and liquid) downstream of the one-way valve with adjustable opening force can be discharged.

[0020] (3) The one-way valve with adjustable opening force of the present application adopts a magnet to drive the valve core. The magnet is not easy to fail or reduce the magnetic quantity, which can effectively improve the reliability of the one-way valve.

[0021] (4) The one-way valve with adjustable opening force of the present application solves the problems of the traditional one-way valve using a spring to drive the valve core, can reduce the gas-liquid flow resistance, reduce the design length of the one-way valve, and thus reduce the mass of the one-way valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 A three-dimensional diagram of an embodiment of a one-way valve with adjustable opening force;

[0024] Figure 2 A cross-sectional view of an embodiment of a one-way valve with adjustable opening force;

[0025] Figure 3 A three-dimensional diagram of an embodiment of a valve seat;

[0026] Figure 4 A cross-sectional view of an embodiment of a valve seat;

[0027] Figure 5 A cross-sectional view of an embodiment in which a valve cover, an adjustment assembly and a manual operation assembly are connected;

[0028] Figure 6 A three-dimensional diagram of an embodiment in which a valve cover, an adjustment assembly and a manual operation assembly are connected;

[0029] Figure 7 A cross-sectional view of an embodiment of a valve core;

[0030] Figure 8 It is a structural schematic diagram of an embodiment of a first magnet assembly;

[0031] Fig. 9 A schematic structural diagram of an embodiment of a manual operation component. DETAILED DESCRIPTION

[0032] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0033] like Figure 1-9As shown, the present application provides a one-way valve with adjustable opening force, comprising: a valve seat 1, a valve cover 2, a valve core 3, an adjustment component 4 and a manual operation component 5. The valve seat 1 at least comprises: a first connecting pipe 11, a first baffle 12 and an inlet pipe 13; one end of the first connecting pipe 11 is connected to one side of the first baffle 12; one end of the inlet pipe 13 is connected to the other side of the first baffle 12; an inlet through hole is opened on the first baffle 12, and the inlet pipe 13 and the first connecting pipe 11 are connected through the inlet through hole. The valve cover 2 at least includes: a second connecting pipe 21, a second baffle 22 and an outlet pipe 23; one end of the second connecting pipe 21 is connected to one side of the second baffle 22; the other end of the second connecting pipe 21 is detachably connected to the other end of the first connecting pipe 11, and after the connection, the valve seat 1 and the valve cover 2 constitute a valve body shell with a accommodating cavity 6; one end of the outlet pipe 23 is connected to the other side of the second baffle 22; an outlet through hole is opened on the second baffle 22, and the outlet through hole is used to connect the outlet pipe 23 and the second connecting pipe 21. The valve core 3 at least includes: a third baffle 31, a valve core pipeline 32 provided with at least one flow hole 321, and an annular mounting seat 33; the diameter of the third baffle 31 is larger than the diameter of the inlet through hole, and the diameter of the third baffle 31 is smaller than the diameter of the accommodating cavity 6; the diameter of the annular mounting seat 33 is larger than the diameter of the outlet through hole, the diameter of the annular mounting seat 33 is smaller than the diameter of the accommodating cavity 6, and the diameter of the annular mounting seat 33 is larger than the diameter of the third baffle 31; one side of the third baffle 31 is connected to one end of the valve core pipeline 32; the annular One side of the mounting seat 33 is connected to the other end of the valve core pipeline 32; the other side of the annular mounting seat 33 is provided with a first magnet assembly 34; the first magnet assembly 34 includes: at least one first S-pole magnet 341 and at least one first N-pole magnet 342, and the first S-pole magnet 341 and the first N-pole magnet 342 are arranged at intervals; the valve core 3 is slidably arranged in the accommodating cavity 6, and the other side of the third baffle 31 faces the inlet through hole, and one side of the annular mounting seat 33 is provided with the first magnet assembly 34 faces the outlet through hole. The adjustment assembly 4 includes adjustment ring plates 41 of various thicknesses; at least one adjustment ring plate 41 is selected from the adjustment assembly 4 according to the opening force requirement, and the selected adjustment ring plate 41 is arranged on the outer side of the outlet pipeline 23, and the selected adjustment ring plate 41 is detachably connected to the outlet pipeline 23, and after the connection, one side of the selected adjustment ring plate 41 contacts the other side of the second baffle 22.The manual operation component 5 at least includes: a manual rotating part 51 and a locking nut 52; a second magnet component 53 is arranged on one side of the manual rotating part 51; the second magnet component 53 includes: at least one second S-pole magnet 531 and at least one second N-pole magnet 532, and the second S-pole magnet 531 and the second N-pole magnet 532 are arranged at intervals; the number of the second S-pole magnets 531 is equal to the number of the first S-pole magnets 341; the number of the second N-pole magnets 532 is equal to the number of the first N-pole magnets 342; the manual rotating part 51 is sleeved on the outside of the outlet pipe 23, and the second magnet component 53 is in contact with the other side of the selected adjustment ring plate 41; the locking nut 52 is arranged on the outside of the outlet pipe 23, and is detachably connected to the outlet pipe 23. After connection, one side of the locking nut 52 is in contact with the other side of the manual rotating part 51. The manual rotating part 51 is rotated to align the first S-pole magnet 341 of the first magnet assembly 34 with the second S-pole magnet 531 of the second magnet assembly 53, and the first N-pole magnet 342 of the first magnet assembly 34 with the second N-pole magnet 532 of the second magnet assembly 53, so that the first magnet assembly 34 and the second magnet assembly 53 generate a repulsive force, thereby achieving a closing action. The manual rotating part 51 is rotated to align the first S-pole magnet 341 of the first magnet assembly 34 with the second N-pole magnet 532 of the second magnet assembly 53, and the first N-pole magnet 342 of the first magnet assembly 34 with the second S-pole magnet 531 of the second magnet assembly 53, so that the first magnet assembly 34 and the second magnet assembly 53 generate an attractive force, thereby achieving an opening action.

[0034] Specifically, Figure 2 As shown, the fixing nut 52 is rotated in a direction away from the second magnet assembly 53, and the fixing effect of the fixing nut 52 on the rotating manual rotating part 51 is eliminated. The manual rotating part 51 is rotated to align the first S-pole magnet 341 of the first magnet assembly 34 with the second S-pole magnet 531 of the second magnet assembly 53, and the first N-pole magnet 342 of the first magnet assembly 34 with the second N-pole magnet 532 of the second magnet assembly 53. The first magnet assembly 34 and the second magnet assembly 53 generate a repulsive force. When no pressure difference is generated between the inlet through hole and the outlet through hole or the pressure at the inlet through hole is less than the repulsive force, the valve core 3 moves toward the inlet through hole, and the other side of the third baffle 31 is fitted with one side of the first baffle 12, thereby closing the inlet through hole, and the fixing nut 52 is rotated in a direction close to the second magnet assembly 53, and the rotating manual rotating part 51 is tightened by the fixing nut 52.

[0035] The locking nut 52 is rotated in a direction away from the second magnet assembly 53, and the tightening effect of the locking nut 52 on the rotating manual rotating part 51 is eliminated. The manual rotating part 51 is rotated to align the first S-pole magnet 341 of the first magnet assembly 34 with the second N-pole magnet 532 of the second magnet assembly 53. The first N-pole magnet 342 of the first magnet assembly 34 is aligned with the second S-pole magnet 531 of the second magnet assembly 53. The first magnet assembly 34 and the second magnet assembly 53 generate suction, and the valve core 3 moves away from the inlet through hole. The other side of the third baffle 31 is separated from one side of the first baffle 12, and the medium (for example: gas and liquid) flows through the inlet pipe 13, the inlet through hole, the accommodating cavity 6, the flow hole 321, the valve core pipe 32, the inlet through hole and the outlet pipe 23 in sequence.

[0036] Furthermore, the specific values ​​of the diameter of the inlet pipe 13, the diameter of the inlet through hole and the diameter of the first connecting pipe 11 are set according to actual conditions. The present application preferably has: the diameter of the inlet pipe 13 is equal to the diameter of the inlet through hole, and the diameter of the first connecting pipe 11 is larger than the diameter of the inlet through hole.

[0037] Furthermore, the specific values ​​of the diameter of the outlet pipe 23, the diameter of the outlet through hole and the diameter of the second connecting pipe 21 are set according to actual conditions. The present application preferably has: the diameter of the outlet pipe 23 is equal to the diameter of the outlet through hole, and the diameter of the second connecting pipe 21 is larger than the diameter of the outlet through hole.

[0038] Furthermore, the valve seat 1 is an integrated structure or a separate structure, and the present application prefers an integrated structure.

[0039] Furthermore, the valve cover 2 is an integrated structure or a separate structure, and the present application prefers an integrated structure.

[0040] Furthermore, the valve core 3 is an integrated structure or a separate structure, and the present application prefers an integrated structure.

[0041] Furthermore, the selected number and thickness of the adjustment ring plate 41 are determined according to the opening force requirement, and the distance between the first magnet assembly 34 and the second magnet assembly 53 is changed by the selected adjustment ring plate 41, thereby achieving the purpose of changing the opening force of the one-way valve.

[0042] As an embodiment, the present application preferably selects an adjusting ring plate 41 .

[0043] As another embodiment, when there are multiple selected adjustment ring plates 41, the multiple selected adjustment ring plates 41 are all arranged on the outside of the outlet pipe 23, and each selected adjustment ring plate 41 is detachably connected to the outlet pipe 23. After connection, one side of the first adjustment ring plate 41 contacts the other side of the second baffle 22, the other side of the first adjustment ring plate 41 contacts the one side of the second adjustment ring plate 41, the other side of the second adjustment ring plate 41 contacts the one side of the third adjustment ring plate 41, ..., one side of the last adjustment ring plate 41 contacts the other side of the second-to-last adjustment ring plate 41, and the other side of the last adjustment ring plate 41 contacts the second magnet assembly 53. When there are multiple selected adjustment ring plates 41, the thicknesses of the multiple adjustment ring plates 41 are the same or different.

[0044] Furthermore, a first magnet groove is formed on the other side of the annular mounting seat 33 , and the first magnet assembly 34 is disposed in the first magnet groove.

[0045] Specifically, the annular mounting seat 33 has a guiding function, which can effectively prevent the valve core 3 from shaking in the radial direction of the valve core pipe 32 when the valve core 3 moves.

[0046] Furthermore, a second magnet groove is formed on one side of the manual rotating portion 51 , and the second magnet assembly 53 is disposed in the second magnet groove.

[0047] Furthermore, the specific shapes of the first S-pole magnet 341, the first N-pole magnet 342, the second S-pole magnet 531 and the second N-pole magnet 532 are all set according to actual conditions. In the present application, the first S-pole magnet 341, the first N-pole magnet 342, the second S-pole magnet 531 and the second N-pole magnet 532 are preferably all fan-shaped magnets.

[0048] Specifically, the specific values ​​of the sector angle of the first S-pole magnet 341 , the sector angle of the first N-pole magnet 342 , the sector angle of the second S-pole magnet 531 , and the sector angle of the second N-pole magnet 532 are all set according to actual conditions.

[0049] Further, such as Figure 2 , Figure 7 , Figure 8 and Fig. 9As shown, the specific numbers of the first S-pole magnet 341, the first N-pole magnet 342, the second S-pole magnet 531 and the second N-pole magnet 532 are all set according to actual conditions. The present application is preferably: there are two first S-pole magnets 341 and two first N-pole magnets 342; one end of a first S-pole magnet 341 is adjacent to one end of a first N-pole magnet 342, the other end of a first N-pole magnet 342 is adjacent to one end of another first S-pole magnet 341, the other end of another first S-pole magnet 341 is adjacent to one end of another first N-pole magnet 342, and the other end of another first N-pole magnet 342 is adjacent to the other end of a first S-pole magnet 341. There are two second S-pole magnets 531 and two second N-pole magnets 532; one end of a second S-pole magnet 531 is adjacent to one end of a second N-pole magnet 532, the other end of a second N-pole magnet 532 is adjacent to one end of another second S-pole magnet 531, the other end of another second S-pole magnet 531 is adjacent to one end of another second N-pole magnet 532, and the other end of another second N-pole magnet 532 is adjacent to the other end of a second S-pole magnet 531.

[0050] Specifically, the number of first S-pole magnets 341 is equal to or different from the number of first N-pole magnets 342, and preferably they are equal. The number of second S-pole magnets 531 is equal to or different from the number of second N-pole magnets 532, and preferably they are equal.

[0051] The two first S-pole magnets 341 and the two first N-pole magnets 342 are arranged at intervals to form a ring-shaped magnet. The two second S-pole magnets 531 and the two second N-pole magnets 532 are arranged at intervals to form a ring-shaped magnet.

[0052] Further, such as Figure 2 , Figure 5 , Figure 6 and Fig. 9 As shown, a plurality of anti-slip grooves 511 are provided on the outer side of the manual rotating part 51, which can increase the friction force on the outer side of the manual rotating part 51, facilitate manual operation of the manual rotating part 51, and rotate the manual rotating part 51 to a preset angle to achieve an opening action or a closing action.

[0053] Furthermore, the valve seat 1 also includes: a plurality of valve core limit blocks 14 , one end of each valve core limit block 14 is connected to one side of the first baffle 12 , and the outer side of each valve core limit block 14 is connected to the inner side of the first connecting pipe 11 .

[0054] Furthermore, a plurality of valve core limit blocks 14 are evenly spaced around the circumference of the first connecting pipe 11 with the axis of the first connecting pipe 11 as the center line.

[0055] Furthermore, the specific length of the valve core limit block 14 is set according to actual conditions. In the present application, it is preferred that the length of the valve core limit block 14 is equal to or greater than the maximum opening distance of the valve core 3.

[0056] Specifically, the length of the valve core stopper 14 is sufficient to cover the maximum opening distance of the valve core 3, and can prevent the valve core 3 from rotating during opening and closing, thereby avoiding closing function failure. The maximum opening distance of the valve core 3 is set according to actual conditions.

[0057] Furthermore, a first sealing ring 311 is provided on the other side of the third baffle 31. When the first magnet assembly 34 and the second magnet assembly 53 generate repulsive force and no pressure difference is generated between the inlet through hole and the outlet through hole, the valve core 3 moves toward the inlet through hole, and the first sealing ring 311 fits against one side of the first baffle 12, thereby closing the inlet through hole.

[0058] Furthermore, a first sealing groove is formed on the other side of the third baffle 31 , and a first sealing ring 311 is disposed in the first sealing groove.

[0059] Further, such as Figure 2 , Figure 3 and Figure 4 As shown, the valve seat 1 further includes: a sealing ring plate 15; the sealing ring plate 15 is located in the first connecting pipe 11, one end of the sealing ring plate 15 is connected to one side of the first baffle plate 12, and the sealing ring plate 15 is aligned with the inlet through hole, and the diameter of the sealing ring plate 15 is equal to the diameter of the inlet through hole. When the first magnet assembly 34 and the second magnet assembly 53 generate repulsive force, and there is no pressure difference between the inlet through hole and the outlet through hole, the valve core 3 moves toward the inlet through hole, and the first sealing ring 311 fits with the other end of the sealing ring plate 15, thereby closing the inlet through hole.

[0060] Specifically, the sealing ring plate 15 cooperates with the first sealing ring 311 to improve the sealing effect.

[0061] Further, such as Figure 2 , Figure 7 and Figure 8 As shown, a plurality of guide protrusions 322 are disposed on the outer side of the valve core pipe 32 .

[0062] Specifically, the annular mounting seat 33 and the guide protrusion 322 work together to guide, which can further improve the stability of the valve core 3 during the movement.

[0063] Furthermore, the specific number of the guide protrusions 322 is set according to actual conditions, and the present application preferably has four guide protrusions 322 .

[0064] Furthermore, the specific position of the guide protrusion 322 is set according to actual conditions. The present application preferably has: multiple guide protrusions 322 are arranged at uniform intervals around the axis of the valve core pipe 32 as the center line, and when the first sealing ring 311 is fitted with the other end of the sealing ring plate 15, the guide protrusion 322 is located between adjacent valve core limit blocks 14.

[0065] Specifically, the guide protrusion 322 can effectively prevent the valve core 3 from shaking in the radial direction of the valve core pipe 32 when the valve core 3 moves. The guide protrusion 322 cooperates with the valve core stopper 14 to effectively prevent the valve core 3 from being displaced when closed, and to prevent the valve core 3 from rotating after the valve core 3 is opened, thereby avoiding a closing function failure caused by the rotation of the valve core 3.

[0066] Furthermore, the guide protrusion 322 is located on the outer side of one end of the valve core pipeline 32 connected to the third baffle 31 .

[0067] Furthermore, the specific length of the guide protrusion 322 is set according to actual conditions.

[0068] Furthermore, the flow hole 321 is an inclined hole with an inclined angle, which can guide the medium to flow along a specific path, thereby optimizing the medium distribution in the manual one-way valve.

[0069] Specifically, the specific value of the inclination angle of the circulation hole 321 is set according to actual conditions.

[0070] Furthermore, there are multiple inclined holes.

[0071] Furthermore, the specific number of the inclined holes is set according to actual conditions, and the preferred embodiment of the present application is: there are four inclined holes.

[0072] Furthermore, the specific location and manner of the plurality of inclined holes are set according to actual conditions, and the present application preferably provides that: the plurality of inclined holes are evenly spaced around the circumference with the axis of the valve core pipe 32 as the center line.

[0073] Further, such as Figure 4 and Figure 5 As shown, an outer side of the other end of the first connecting pipe 11 is provided with an outer thread 111 ; an inner side of the other end of the second connecting pipe 21 is provided with an inner thread 211 matched with the outer thread 111 .

[0074] Specifically, the first connecting pipe 11 and the second connecting pipe 21 are connected by threaded connection, but are not limited to the threaded connection. The present application preferably adopts the threaded connection.

[0075] Further, such as Figure 2 , Figure 5 and Figure 6As shown, the outer side of the outlet pipe 23 is provided with an outer pipe thread 231, and the inner side of the adjusting ring plate 41 is provided with an inner ring plate thread, and the adjusting ring plate 41 is connected to the outer pipe thread 231 of the outlet pipe 23 through the inner ring plate thread. The adjusting ring plate 41 and the outlet pipe 23 are connected by a threaded connection, but are not limited to the threaded connection. The present application preferably adopts a threaded connection to facilitate installation, removal or replacement of the adjusting ring plate 41.

[0076] Specifically, the specific shape of the adjustment ring plate 41 is set according to actual conditions, and the present application preferably has a hexagonal structure with a through hole in the middle, and the inner thread of the ring plate is set on the inner wall of the through hole.

[0077] Furthermore, the inner side of the manual rotating part 51 is provided with an internal rotating part thread, and the manual rotating part 51 is connected to the pipe external thread 231 of the outlet pipe 23 through the internal rotating part thread. The manual rotating part 51 and the outlet pipe 23 are connected by a threaded connection, but are not limited to the threaded connection. The present application preferably adopts a threaded connection to facilitate installation, disassembly or adjustment of the rotation angle of the manual rotating part 51.

[0078] Further, a fixing internal thread is provided on the inner side of the fixing nut 52, and the fixing nut 52 is connected to the pipe external thread 231 of the outlet pipe 23 through the fixing internal thread. The fixing nut 52 and the outlet pipe 23 are connected by a threaded connection, but are not limited to the threaded connection. The present application preferably adopts a threaded connection to facilitate installation or removal of the fixing nut 52.

[0079] Furthermore, a second sealing ring 212 is provided on the inner side of the second connecting pipe 21 , and the second sealing ring 212 is close to the second baffle 22 . When the other end of the second connecting pipe 21 is connected to the other end of the first connecting pipe 11 , the other end of the first connecting pipe 11 contacts the second sealing ring 212 .

[0080] Specifically, the second sealing ring 212 can improve the sealing effect.

[0081] Furthermore, the other end of the first connecting pipe 11 is provided with a second sealing groove adapted to the second sealing ring 212. When the other end of the second connecting pipe 21 is connected to the other end of the first connecting pipe 11, the second sealing groove of the first connecting pipe 11 cooperates with the second sealing ring 212 to achieve sealing.

[0082] Furthermore, the first S-pole magnet 341 , the first N-pole magnet 342 , the second S-pole magnet 531 and the second N-pole magnet 532 are permanent magnets or NdFeB strong magnets, but are not limited to permanent magnets or NdFeB strong magnets.

[0083] Specifically, the magnet thickness, volume and magnetization intensity of the first S-pole magnet 341 , the first N-pole magnet 342 , the second S-pole magnet 531 and the second N-pole magnet 532 may be set according to different one-way valve opening pressures.

[0084] Furthermore, a first protrusion 112 is provided on the outer side of one end of the first connecting pipe 11 connected to the first baffle 12 to facilitate the connection operation.

[0085] Furthermore, a second protrusion 213 is provided on the outer side of one end of the second connecting pipe 21 connected to the second baffle 22 to facilitate the connection operation.

[0086] Furthermore, a first mark is provided on the outer side of the manual rotating part 51, and a second mark and a third mark are provided on the outer side of the first protrusion 112 or the outer side of the second protrusion 213; the manual rotating part 51 is rotated, and when the first mark is aligned with the second mark, the first S-pole magnet 341 of the first magnet assembly 34 is aligned with the second S-pole magnet 531 of the second magnet assembly 53, and the first N-pole magnet 342 of the first magnet assembly 34 is aligned with the second N-pole magnet 532 of the second magnet assembly 53, and the first magnet assembly 34 and the second magnet assembly 53 generate a repulsive force, thereby realizing a closing action; when the first mark is aligned with the third mark, the first S-pole magnet 341 of the first magnet assembly 34 is aligned with the second N-pole magnet 532 of the second magnet assembly 53, and the first N-pole magnet 342 of the first magnet assembly 34 is aligned with the second S-pole magnet 531 of the second magnet assembly 53, and the first magnet assembly 34 and the second magnet assembly 53 generate an attractive force, thereby realizing an opening action.

[0087] Specifically, the first mark, the second mark and the third mark are provided to facilitate quickly and accurately rotating the manual rotating part 51 to a desired preset angle, thereby realizing an opening action or a closing action.

[0088] Furthermore, the specific forms of the first mark, the second mark and the third mark are set according to actual conditions. As an embodiment, the present application is preferably: the first mark is a first straight line, and the first straight line is set along the axis direction of the manual rotating part 51. The second mark is a second straight line and a first character (for example: off), and the second straight line is set along the axis direction of the first protrusion 112 or the second protrusion 213. When the first straight line is aligned with the second straight line, the first magnet assembly 34 and the second magnet assembly 53 generate repulsion, thereby achieving a closing action. The third mark is a third straight line and a second character (for example: open), and the third straight line is set along the axis direction of the first protrusion 112 or the second protrusion 213. When the first straight line is aligned with the third straight line, the first magnet assembly 34 and the second magnet assembly 53 generate suction, thereby achieving an opening action.

[0089] The beneficial effects achieved by this application are as follows:

[0090] (1) The present application can adjust the opening force of a one-way valve with adjustable opening force according to different opening requirements, for example: by controlling the magnetization amount and / or the volume of the magnet, the opening force of the one-way valve can be accurately controlled; by changing the distance between the first magnet assembly and the second magnet assembly by selecting an adjustment ring plate, the purpose of changing the opening force of the one-way valve can be achieved.

[0091] (2) When the one-way valve with adjustable opening force of the present application is used in ground equipment, the one-way valve with adjustable opening force can be opened or closed by manual operation, and the medium (for example, gas and liquid) downstream of the one-way valve with adjustable opening force can be discharged.

[0092] (3) The one-way valve with adjustable opening force of the present application adopts a magnet to drive the valve core. The magnet is not easy to fail or reduce the magnetic quantity, which can effectively improve the reliability of the one-way valve.

[0093] (4) The one-way valve with adjustable opening force of the present application solves the problems of the traditional one-way valve using a spring to drive the valve core, can reduce the gas-liquid flow resistance, reduce the design length of the one-way valve, and thus reduce the mass of the one-way valve.

[0094] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the scope of protection of the present application is intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application. Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the protection scope of the present application and its equivalent technology, the present application is also intended to include these modifications and variations.

Claims

1. A one-way valve with adjustable opening force, characterized in that: include: Valve seat, valve cover, valve core, adjustment assembly and manual operation assembly; Wherein, the valve seat at least comprises: a first connecting pipe, a first baffle and an inlet pipe; One end of the first connecting pipe is connected to one side of the first baffle; One end of the inlet pipe is connected to the other side of the first baffle; The first baffle plate is provided with an inlet through hole, through which the inlet pipe and the first connecting pipe are connected; The valve cover at least includes: a second connecting pipe, a second baffle and an outlet pipe; One end of the second connecting pipe is connected to one side of the second baffle; the other end of the second connecting pipe is detachably connected to the other end of the first connecting pipe, and after the connection, the valve seat and the valve cover form a valve body shell with an accommodating cavity; One end of the outlet pipe is connected to the other side of the second baffle; The second baffle plate is provided with an outlet through hole, through which the outlet pipe and the second connecting pipe are connected; The valve core at least comprises: a third baffle, a valve core pipe provided with at least one flow hole, and an annular mounting seat; the diameter of the third baffle is larger than the diameter of the inlet through hole, and the diameter of the third baffle is smaller than the diameter of the accommodating cavity; the diameter of the annular mounting seat is larger than the diameter of the outlet through hole, the diameter of the annular mounting seat is smaller than the diameter of the accommodating cavity, and the diameter of the annular mounting seat is larger than the diameter of the third baffle; One side of the third baffle is connected to one end of the valve core pipeline; One side of the annular mounting seat is connected to the other end of the valve core pipeline; the other side of the annular mounting seat is provided with a first magnet assembly; the first magnet assembly includes: at least one first S-pole magnet and at least one first N-pole magnet, and the first S-pole magnet and the first N-pole magnet are arranged at intervals; The valve core is slidably disposed in the accommodating cavity, and the other side of the third baffle faces the inlet through hole, and the one side of the annular mounting seat where the first magnet assembly is disposed faces the outlet through hole; The adjustment assembly includes adjustment ring plates of various thicknesses; at least one adjustment ring plate is selected from the adjustment assembly according to the opening force requirement, the selected adjustment ring plate is arranged on the outer side of the outlet pipe, and the selected adjustment ring plate is detachably connected to the outlet pipe, and after the connection, one side of the selected adjustment ring plate contacts the other side of the second baffle; The manual operation assembly at least comprises: a manual rotating portion and a fixing nut; A second magnet assembly is provided on one side of the manual rotating part; the second magnet assembly includes: at least one second S-pole magnet and at least one second N-pole magnet, the second S-pole magnet and the second N-pole magnet are arranged at intervals; the number of the second S-pole magnets is equal to the number of the first S-pole magnets; the number of the second N-pole magnets is equal to the number of the first N-pole magnets; The manual rotating part is sleeved on the outside of the outlet pipe, and the second magnet assembly is in contact with the other side of the selected adjustment ring plate; The fixing nut is arranged on the outside of the outlet pipe and is detachably connected to the outlet pipe. After the connection, one side of the fixing nut contacts the other side of the manual rotating part. The manual rotating part is rotated to align the first S-pole magnet of the first magnet assembly with the second S-pole magnet of the second magnet assembly, and the first N-pole magnet of the first magnet assembly with the second N-pole magnet of the second magnet assembly, so that the first magnet assembly and the second magnet assembly generate a repulsive force, thereby realizing a closing action; Rotate the manual rotating part to align the first S-pole magnet of the first magnet assembly with the second N-pole magnet of the second magnet assembly, and align the first N-pole magnet of the first magnet assembly with the second S-pole magnet of the second magnet assembly, so that the first magnet assembly and the second magnet assembly generate suction, thereby realizing the opening action.

2. The one-way valve with adjustable opening force according to claim 1, characterized in that: The outer side of the outlet pipe is provided with a pipe external thread, the inner side of the adjusting ring plate is provided with a ring plate internal thread, and the adjusting ring plate is connected with the pipe external thread of the outlet pipe through the ring plate internal thread.

3. The one-way valve with adjustable opening force according to claim 2, characterized in that: The inner side of the manual rotating part is provided with an internal rotating part thread, and the manual rotating part is connected with the external pipe thread of the outlet pipe through the internal rotating part thread.

4. The one-way valve with adjustable opening force according to claim 3, characterized in that: The inner side of the fixing nut is provided with a fixing internal thread, and the fixing nut is connected with the pipe external thread of the outlet pipe through the fixing internal thread.

5. The one-way valve with adjustable opening force according to claim 1, characterized in that: When multiple adjustment ring plates are selected, the multiple selected adjustment ring plates are all arranged on the outside of the outlet pipe, and each selected adjustment ring plate is detachably connected to the outlet pipe. After connection, one side of the first adjustment ring plate contacts the other side of the second baffle, the other side of the first adjustment ring plate contacts one side of the second adjustment ring plate, the other side of the second adjustment ring plate contacts one side of the third adjustment ring plate, ..., one side of the last adjustment ring plate contacts the other side of the second-to-last adjustment ring plate, and the other side of the last adjustment ring plate contacts the second magnet assembly.

6. The one-way valve with adjustable opening force according to claim 1, characterized in that: There are two first S-pole magnets and two first N-pole magnets; one end of one first S-pole magnet is adjacent to one end of one first N-pole magnet, the other end of one first N-pole magnet is adjacent to one end of another first S-pole magnet, the other end of another first S-pole magnet is adjacent to one end of another first N-pole magnet, and the other end of another first N-pole magnet is adjacent to the other end of one first S-pole magnet; There are two second S-pole magnets and two second N-pole magnets; One end of a second S-pole magnet is adjacent to one end of a second N-pole magnet, the other end of a second N-pole magnet is adjacent to one end of another second S-pole magnet, the other end of another second S-pole magnet is adjacent to one end of another second N-pole magnet, and the other end of another second N-pole magnet is adjacent to the other end of a second S-pole magnet.

7. The one-way valve with adjustable opening force according to claim 1, characterized in that: A plurality of anti-slip grooves are arranged on the outer side of the manual rotating part.

8. The one-way valve with adjustable opening force according to claim 1, characterized in that: A first sealing ring is provided on the other side of the third baffle; The valve seat further includes: a sealing ring plate; the sealing ring plate is located in the first connecting pipe, one end of the sealing ring plate is connected to one side of the first baffle plate, and the sealing ring plate is aligned with the inlet through hole, and the diameter of the sealing ring plate is equal to the diameter of the inlet through hole; When the first magnet assembly and the second magnet assembly generate repulsive force and no pressure difference is generated between the inlet through hole and the outlet through hole, the valve core moves toward the inlet through hole, and the first sealing ring fits with the other end of the sealing ring plate, thereby closing the inlet through hole.

9. The one-way valve with adjustable opening force according to claim 8, characterized in that: The valve seat further includes: a plurality of valve core limit blocks, one end of each valve core limit block is connected to one side of the first baffle plate, and the outer side of each valve core limit block is connected to the inner side of the first connecting pipe; A plurality of valve core limit blocks are evenly spaced and arranged in a circle with the axis of the first connecting pipeline as the center line; A plurality of guide protrusions are arranged on the outside of the valve core pipeline, and the plurality of guide protrusions are arranged at even intervals in a circle with the axis of the valve core pipeline as the center line. When the first sealing ring is fitted with the other end of the sealing ring plate, the guide protrusions are located between adjacent valve core limit blocks.

10. The one-way valve with adjustable opening force according to claim 1, characterized in that: A first protrusion is arranged on the outer side of one end of the first connecting pipe connected to the first baffle; a second protrusion is arranged on the outer side of one end of the second connecting pipe connected to the second baffle; a first mark is arranged on the outer side of the manual rotating part, and a second mark and a third mark are arranged on the outer side of the first protrusion or the outer side of the second protrusion; the manual rotating part is rotated, and when the first mark is aligned with the second mark, the first magnet assembly and the second magnet assembly generate repulsive force, thereby realizing the closing action; when the first mark is aligned with the third mark, the first magnet assembly and the second magnet assembly generate attractive force, thereby realizing the opening action.

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