CN219911873U - One-way valve - Google Patents
One-way valve Download PDFInfo
- Publication number
- CN219911873U CN219911873U CN202320860979.4U CN202320860979U CN219911873U CN 219911873 U CN219911873 U CN 219911873U CN 202320860979 U CN202320860979 U CN 202320860979U CN 219911873 U CN219911873 U CN 219911873U
- Authority
- CN
- China
- Prior art keywords
- valve
- core
- diameter
- way valve
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims description 9
- 230000005489 elastic deformation Effects 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a one-way valve, which comprises a valve seat and a valve core, wherein the valve seat is of an equal wall thickness structure, a stepped shaft-shaped valve cavity is formed in the valve seat, a conical valve port is arranged at the joint of a small-diameter section and a large-diameter section of the valve cavity, the valve core embedded in the valve cavity is of an elastic structure, the valve core comprises a base and a core column integrally arranged in the center of the base, a through hole is formed around the core column, and a sealing head for sealing the conical valve port is arranged at the top end of the core column. The check valve has only two parts, has the advantages of simple structure, simple assembly and low cost, and has high practical value.
Description
Technical Field
The utility model relates to the technical field of valve manufacturing, in particular to a one-way valve with simple structure, simple assembly and low production cost.
Background
One-way valves, also known as check valves or non-return valves, are used to prevent the reverse flow of a medium. The one-way valve commonly used in the automobile braking field in the prior art adopts a steel ball spring type structure and comprises four main parts, namely a valve seat, a steel ball, a spring and a spring seat. The check valve in the prior art has more parts, complex assembly process and high production cost. The Chinese patent document with publication number CN218377861U discloses a check valve for a brake system, wherein the check valve is provided with a cavity and comprises a first valve body and a second valve body connected with the first valve body, and the publication number is 2023, 1 and 24; the valve core is movably arranged in the cavity, one end of the valve core is connected with one end of the elastic piece, and the other end of the elastic piece is connected with the first protruding part in the first valve body; and one end of the valve core, which is far away from the elastic piece, is also provided with a sealing structure, and the sealing structure enables the valve core to be in airtight connection with the second valve body when the valve core is reset. The one end of case body has the second bulge, and the other end of case body has the fourth bulge, and second bulge, fourth bulge and case body are coaxial to the length of fourth bulge is greater than the second bulge, makes the fourth bulge has the guide effect, when the case is reset, the fourth bulge can follow axial displacement all the time, and it plays the guide effect, avoids the in-process skew at axial displacement, and then has guaranteed the gas tightness when the case resets. However, the check valve has the disadvantages of more parts, complicated assembly process and high production cost.
Disclosure of Invention
The utility model aims to solve the problems of more parts, complicated assembly process and high production cost of the check valve in the prior art, and provides the check valve which has the advantages of simple structure, simplicity in assembly and low cost.
The utility model adopts the technical scheme that the one-way valve comprises a valve seat and a valve core, wherein the valve seat is of an equal wall thickness structure, a stepped shaft-shaped valve cavity is formed in the valve seat, a conical valve port is arranged at the joint of a small-diameter section and a large-diameter section of the valve cavity, a medium inlet is arranged at the small-diameter end of the valve seat, and a medium outlet is arranged at the large-diameter end of the valve seat; the valve core embedded in the valve cavity is of an elastic structure, the valve core comprises a base and a core column integrally arranged in the center of the base, through holes are formed around the core column, and a sealing head for sealing the conical valve port is arranged at the top end of the core column. The check valve is composed of two parts, the valve seat with the equal wall thickness structure can be processed by stamping by using a plate, the material is saved, the process is simple, and the processing cost is low; the valve core is made of an elastic material in an integrated mode and is directly embedded in the valve seat, the valve core has the advantages of being saving in material, simple in process and low in processing cost, meanwhile, the embedded structure of the valve core and the valve seat omits the assembly procedure of parts in the later stage of the check valve in the prior art, and the production cost is reduced. The middle part of the valve core is a core column, through holes are arranged around the core column and used as a through flow channel when the one-way valve positively circulates, so that the medium can conveniently pass through. When the one-way valve circulates positively, the sealing head is under the action of medium pressure to enable the valve core to elastically deform so as to enable a gap to be formed between the sealing head and the conical valve port, and the medium can pass through the one-way valve from the conical valve port and the through hole to realize conduction; when the medium flows to the opposite direction, the pressure of the medium acts on the base of the valve core to push the sealing head to be clung to the conical valve port of the valve seat, so that the effect of preventing the medium from passing reversely is achieved. Therefore, the utility model solves the problems of more parts, complex assembly process and high production cost of the check valve in the prior art, and has the advantages of simple structure, simple assembly and low cost.
Preferably, the cross section of the through holes is in a sector ring shape, and elastic deformation ribs of the valve core are formed between the adjacent through holes on the opposite base. The cross section area of the adjacent through holes can be increased by adopting the through holes in the shape of a fan ring, so that the valve core has better elasticity; meanwhile, the opening pressure of the one-way valve can be changed by selecting the elastic deformation ribs with different cross sections, so that the one-way valve is suitable for different medium working conditions.
Preferably, the outer periphery of the upper base of the valve core extends upwards to form a positioning ring integrally, the positioning ring is cylindrical, the outer diameter of the positioning ring is matched with the inner diameter of the large-diameter section of the valve cavity, and the through hole is positioned between the positioning ring and the core column. The cylindrical positioning ring is used for limiting the radial and axial positions of the valve core in the valve cavity, the outer diameter of the positioning ring is matched with the inner diameter of the large-diameter section of the valve cavity, and the radial movement of the valve core in the valve cavity can be avoided.
Preferably, the valve seat is made of a plate in a stamping mode, an inner flanging ring for fixing the valve core is arranged at the opening of the large-diameter section of the valve cavity, the width of the inner flanging ring is matched with the width of the positioning ring, and the inner flanging ring is attached to the base of the valve core. The valve seat is made of the sheet material in a stamping mode, and processing is convenient; the inner flanging ring at the opening of the large-diameter section of the valve cavity is used for fixing the valve core embedded in the valve cavity, so that the valve core is fixed in the valve seat and the falling-out phenomenon can not occur. The width of the inner flanging ring is matched with the width of the positioning ring, so that the inner flanging ring can not block the through hole, and the through flow of the one-way valve is ensured.
Preferably, the height of the positioning ring is matched with the axial length of the large-diameter section of the valve cavity, the sealing head at the top end of the stem is attached to the conical surface of the conical valve port, and the one-way valve is of a normally closed structure. The height of the positioning ring is matched with the axial length of the large-diameter section of the valve cavity, so that the positioning ring can play a role in pressing the inner flanging ring of the valve seat, and the forming of the inner flanging ring is facilitated. The sealing head at the top end of the stem column is attached to the conical surface of the conical valve port in a normal state, so that the one-way valve is in a closed structure in a normal state, and the one-way valve can be opened only under the action of medium pressure.
Preferably, the number of the through holes is 3-6, and the through holes are uniformly distributed in the circumferential direction of the base.
Preferably, the cross section of the stem is circular, the diameter of the stem is larger than the inner diameter of the small-diameter section of the valve cavity, the sealing head at the top end of the stem is hemispherical, and the diameter of the sealing head is the same as that of the stem. The hemispherical sealing head can better fit the conical valve port.
Preferably, the cone apex angle of the cone valve port is 65-85 degrees.
Preferably, the valve seat is made of stainless steel, and the valve core is made of oil-resistant rubber.
The one-way valve has the advantages that the one-way valve only has two parts, the valve seat is a sheet stamping part, the valve core made of rubber is directly encapsulated in the embedded valve seat, the one-way valve has the advantages of simple structure, simplicity in assembly and low cost, the problems of more parts, complicated assembly process and high production cost of the one-way valve in the prior art are solved, and the one-way valve has high practical value.
Drawings
FIG. 1 is a cross-sectional view of one construction of the one-way valve of the present utility model;
FIG. 2 is a cross-sectional view of a valve seat of the check valve of the present utility model;
FIG. 3 is a schematic perspective view of the valve core of the check valve of the present utility model;
FIG. 4 is a schematic view of a valve core of the check valve of the present utility model;
FIG. 5 is a top view of the valve cartridge of the one-way valve of the present utility model;
fig. 6 is a cross-sectional view of a structure of the valve cartridge of the check valve of the present utility model.
In the figure: 1. the valve seat is characterized by comprising a valve seat, a valve core, a small diameter section, a large diameter section, a conical valve port, a medium inlet, a medium outlet, a base, a stem, a through hole, a sealing head, an elastic deformation rib, a positioning ring, an inner flanging ring and a cone vertex angle.
Detailed Description
The following examples are given to further illustrate embodiments of the present utility model by way of example, and by way of example only, and not to be construed as limiting the scope of the utility model.
Example 1
In the embodiment 1 shown in fig. 1 and fig. 2, a one-way valve comprises a valve seat 1 and a valve core 2, wherein the valve seat is of an integrated structure with equal wall thickness and is made of stainless steel plates by stamping, a stepped shaft-shaped valve cavity is formed in the valve seat, a conical valve port 5 is arranged at the joint of a small-diameter section 3 and a large-diameter section 4 of the valve cavity, and the cone apex angle A of the conical valve port is 65-85 degrees (75 degrees in the embodiment); the small diameter end of the valve seat is provided with a medium inlet 6, and the large diameter end of the valve seat is provided with a medium outlet 7.
The valve core embedded in the valve cavity is of an elastic structure and is made of an oil-resistant rubber material in an integrated mode (see fig. 3 and 4), the valve core comprises a base 8 and a core column 9 integrally arranged in the center of the base, and a sealing head 11 for sealing the conical valve port is arranged at the top end of the core column. The cross section of the stem is circular, the diameter of the stem is larger than the inner diameter of the small-diameter section of the valve cavity, the sealing head at the top end of the stem is hemispherical, the diameter of the sealing head is the same as that of the stem, and the hemispherical sealing head can be better attached to the conical valve port.
The through holes 10 are arranged around the core column, the cross sections of the through holes are in a fan shape, the number of the through holes is 3-6 (4 in the embodiment, see fig. 5 and 6), the through holes are uniformly distributed in the circumferential direction of the base, and the cross sections of adjacent through holes can be increased by adopting the through holes in the fan shape, so that the valve core has better elasticity. The elastic deformation ribs 12 of the valve core are formed between the adjacent through holes on the base, and the opening pressure of the one-way valve can be changed by selecting the elastic deformation ribs with different cross sections, so that the one-way valve is suitable for different medium working conditions.
The periphery of the upper base of the valve core extends upwards to form a positioning ring 13 integrally, the positioning ring is cylindrical, the outer diameter of the positioning ring is matched with the inner diameter of the large-diameter section of the valve cavity, the through hole is positioned between the positioning ring and the core column, and two sides of the through hole are respectively clung to the core column and the positioning ring. The cylindrical positioning ring is used for limiting the radial and axial positions of the valve core in the valve cavity, the outer diameter of the positioning ring is matched with the inner diameter of the large-diameter section of the valve cavity, and the radial movement of the valve core in the valve cavity can be avoided.
An inner flanging ring 14 for fixing the valve core is arranged at the opening of the large-diameter section of the valve cavity, the width of the inner flanging ring is matched with the width of the positioning ring, the height of the positioning ring is matched with the axial length of the large-diameter section of the valve cavity, the inner flanging ring is attached to the base of the valve core, the sealing head at the top end of the stem is attached to the conical surface of the conical valve port, and the non-working one-way valve is of a normally closed structure. The inner flanging ring is used for fixing the valve core embedded in the valve cavity, so that the valve core is fixed in the valve seat, and the phenomenon of falling-out can not occur. The width of the inner flanging ring is matched with the width of the positioning ring, so that the inner flanging ring can not block the through hole, and the through flow of the one-way valve is ensured.
The check valve is composed of two parts, the valve seat punched by stainless steel plates is material-saving, the process is simple, and the processing cost is low; the valve core is integrally formed by adopting a rubber material and is directly embedded in the valve seat, so that the valve has the advantages of saving materials, simple process and low processing cost; meanwhile, the embedded structure of the valve core and the valve seat omits the assembly procedure of parts at the later stage of the check valve in the prior art, and reduces the production cost. The middle part of the valve core is a core column, through holes are arranged around the core column and used as a through flow channel when the one-way valve positively circulates, so that the medium can conveniently pass through. When the one-way valve circulates positively, the sealing head is under the action of medium pressure to enable the valve core to elastically deform so as to enable a gap to be formed between the sealing head and the conical valve port, and the medium can pass through the one-way valve from the conical valve port and the through hole to realize conduction; when the medium flows to the opposite direction, the pressure of the medium acts on the base of the valve core to push the sealing head to be clung to the conical valve port of the valve seat, so that the effect of preventing the medium from passing reversely is achieved. Therefore, the utility model solves the problems of more parts, complex assembly process and high production cost of the check valve in the prior art, and has the advantages of simple structure, simple assembly and low cost.
In addition to the above embodiments, the technical features or technical data of the present utility model may be rearranged and combined within the scope of the claims and the description of the present utility model to constitute new embodiments, which may be implemented without inventive effort by those skilled in the art, and thus, embodiments of the present utility model not described in detail should be considered as embodiments of the present utility model within the scope of the protection of the present utility model.
Claims (9)
1. The one-way valve comprises a valve seat (1) and a valve core (2) and is characterized in that the valve seat is of an equal wall thickness structure, a stepped shaft-shaped valve cavity is formed in the valve seat, a conical valve port (5) is arranged at the joint of a small-diameter section (3) and a large-diameter section (4) of the valve cavity, a medium inlet (6) is formed in the small-diameter end of the valve seat, and a medium outlet (7) is formed in the large-diameter end of the valve seat; the valve core embedded in the valve cavity is of an elastic structure and comprises a base (8) and a core column (9) integrally arranged in the center of the base, a through hole (10) is arranged around the core column, and a sealing head (11) for sealing the conical valve port is arranged at the top end of the core column.
2. A one-way valve according to claim 1, wherein the cross section of the through-flow hole is in the shape of a sector ring, and the elastic deformation rib (12) of the valve core is formed between the adjacent through-flow holes on the base.
3. The one-way valve according to claim 1, wherein a positioning ring (13) is integrally formed on the outer periphery of the upper base of the valve core in an upward extending manner, the positioning ring is cylindrical, the outer diameter of the positioning ring is matched with the inner diameter of the large-diameter section of the valve cavity, and the through hole is positioned between the positioning ring and the stem.
4. A one-way valve according to claim 3, wherein the valve seat is made of a sheet material by punching, an inner flanging ring (14) for fixing the valve core is arranged at the opening of the large-diameter section of the valve cavity, the width of the inner flanging ring is matched with the width of the positioning ring, and the inner flanging ring is attached to the base of the valve core.
5. The one-way valve according to claim 4, wherein the positioning ring is matched with the axial length of the large-diameter section of the valve cavity in height, the sealing head at the top end of the stem is attached to the conical surface of the conical valve port, and the one-way valve is of a normally closed structure.
6. The one-way valve according to claim 1, wherein the number of through holes is 3-6, and the through holes are uniformly distributed in the circumferential direction of the base.
7. The one-way valve according to claim 1, wherein the cross section of the stem is circular, the diameter of the stem is larger than the inner diameter of the small diameter section of the valve cavity, the sealing head at the top end of the stem is hemispherical, and the diameter of the sealing head is the same as the diameter of the stem.
8. A one-way valve according to any one of claims 1 to 7, wherein the cone apex angle (a) of the cone-shaped valve port is 65-85 degrees.
9. A one-way valve according to any one of claims 1 to 7, wherein the valve seat is of stainless steel material and the valve core is of oil resistant rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320860979.4U CN219911873U (en) | 2023-04-10 | 2023-04-10 | One-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320860979.4U CN219911873U (en) | 2023-04-10 | 2023-04-10 | One-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219911873U true CN219911873U (en) | 2023-10-27 |
Family
ID=88424494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320860979.4U Active CN219911873U (en) | 2023-04-10 | 2023-04-10 | One-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219911873U (en) |
-
2023
- 2023-04-10 CN CN202320860979.4U patent/CN219911873U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3112557U (en) | Ball valve | |
| US20090212248A1 (en) | Solenoid-actuated diaphragm valve | |
| EP0072170B1 (en) | Control valve | |
| IL171506A (en) | Fluid controller | |
| US20200072360A1 (en) | Sealing structure of a five-dimensional eccentric valve | |
| US9097364B2 (en) | Flow straightening seat ring and control valve having flow straightening seat ring | |
| US20110042598A1 (en) | Solenoid-actuated diaphragm valve | |
| CN219911873U (en) | One-way valve | |
| US7357372B2 (en) | Seat ring for butterfly valve | |
| JP2013083285A (en) | Butterfly valve | |
| KR20190139947A (en) | Valve body for annular valve and annular valve | |
| CN205908830U (en) | Check valve | |
| CN213332552U (en) | Simple axial flow type one-way valve | |
| JPH0319648Y2 (en) | ||
| CN101338821A (en) | All-welded ball valve possessing novel style sealing structure | |
| CN205937863U (en) | Stop valve | |
| CN220816626U (en) | Throttle ball | |
| CN219452896U (en) | Bellows sealing stop valve | |
| CN215214805U (en) | Multistage pressure reducing valve structure | |
| CN221257757U (en) | Four-way check valve | |
| JP6342054B1 (en) | Annular valve | |
| CN210661520U (en) | Valve seat of spherical one-way valve | |
| CN221257829U (en) | Sealing cover for small electromagnetic valve | |
| CN211423487U (en) | Precision pressure regulating valve | |
| CN220268520U (en) | Check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |