CN210397825U - One-way valve with dust filtering function - Google Patents
One-way valve with dust filtering function Download PDFInfo
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- CN210397825U CN210397825U CN201921365775.3U CN201921365775U CN210397825U CN 210397825 U CN210397825 U CN 210397825U CN 201921365775 U CN201921365775 U CN 201921365775U CN 210397825 U CN210397825 U CN 210397825U
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- check valve
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Abstract
The utility model discloses a check valve of dirt function is strained in area relates to valve technical field, and its technical scheme main points are: the valve body is provided with an air inlet and an air outlet, a valve plate assembly and a sealing part for the valve plate assembly to abut against are movably arranged in the valve body, and when the valve plate assembly abuts against the sealing part, the valve plate assembly divides the interior of the valve body into an air inlet cavity communicated with the air inlet and an air outlet cavity communicated with the air outlet; the air inlet cavity is internally provided with a plurality of baffles which are distributed at intervals along the air exhaust direction, and bent filtering channels are formed among the baffles. The one-way valve can filter dust, so that on one hand, the one-way valve is ensured to have better one-way sealing performance, and on the other hand, the dust is not easy to generate adverse effects on subsequent communicated equipment; the check valve is provided with the baffles with special structures, and light blocking conditions are formed among the baffles, so that gas cannot pass through the check valve in a straight line, and the check valve can be disassembled and assembled; through setting up the valve gap, the dust in this check valve can conveniently be cleared up.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to check valve of dirt function is strained in area.
Background
When the existing vacuum pump and compressor are used for pumping air, a check valve is generally arranged in an air path to prevent air backflow when equipment is stopped. The air pumped by the vacuum pump and the compressor may contain dust under the influence of the process and the air quality.
The prior Chinese utility model with the publication number of CN205331511U discloses a check valve, which comprises a valve body, a baffle plate and a spring; the valve body is provided with an inner cavity, an oil inlet and an oil outlet which are communicated with the inner cavity; the baffle and the spring are arranged in the inner cavity of the valve body, and the spring is supported between the valve body and the baffle and used for tightly pressing the baffle at the oil inlet.
The above prior art solutions have the following drawbacks: this check valve can't filter the dust, and the dust can be attached to on the one hand sealed face of check valve, reduces the one-way sealing performance of check valve, and on the other hand the dust probably produces adverse effect to subsequent equipment behind the check valve.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a check valve of dirt function is strained in area can filter the dust, has guaranteed on the one hand that the check valve has better one-way sealing performance, and on the other hand dust is difficult for producing adverse effect to the equipment of follow-up intercommunication.
The above technical purpose of the present invention can be achieved by the following technical solutions: a one-way valve with a dust filtering function comprises a valve body, wherein the valve body is provided with an air inlet and an air outlet, a valve plate assembly and a sealing part for abutting against the valve plate assembly are movably arranged in the valve body, and when the valve plate assembly abuts against the sealing part, the valve plate assembly divides the interior of the valve body into an air inlet cavity communicated with the air inlet and an air outlet cavity communicated with the air outlet; the air inlet cavity is internally provided with a plurality of baffles which are distributed at intervals along the air exhaust direction, and bent filtering channels are formed among the baffles.
Through above-mentioned technical scheme, this check valve is through setting up the baffle of special construction, and gas flow direction can change when passing through filtering channel, and the dust strikes the baffle, constantly reduces the upward speed of the solid dust that smugglies secretly in the air current, and this exhaust check valve has the effect of filtering the dust. Because the dust is difficult to pass through the filtering channel, the dust is difficult to attach to the sealing part and the valve plate assembly, and the one-way valve is ensured to have better one-way sealing performance; on the other hand, the dust is filtered by the one-way valve, and the dust is not easy to generate adverse effect on subsequent communicated equipment.
Preferably, a center pillar is arranged in the air inlet cavity, and the baffle comprises an inner baffle fixed with the center pillar and an outer baffle fixed with the inner wall of the valve body; the inner baffle is annular and is sleeved outside the middle column, the outer baffle is also annular, the outer baffle is fixed with the inner wall of the valve body through the edge of the outer ring, and the inner baffle and the outer baffle are distributed in a staggered mode along the arrangement direction of the baffles.
Through the technical scheme, the annular inner baffle and the annular outer baffle are reasonable in structure and can well block dust; through setting up the center pillar, realized the fixed of outer baffle with interior baffle.
Preferably, interior baffle, outer baffle are the annular slab that has the tapering, the face that the center pillar was kept away from to interior baffle extends to the direction slope that is kept away from the valve plate subassembly, the face that the valve body inner wall was kept away from to outer baffle extends to the direction slope that is kept away from the valve plate subassembly.
Through above-mentioned technical scheme, the baffle that the slope downwardly extending has better dust retaining effect, and can the direction fall in the downward landing of the dust of upper surface, impels the dust deposit to the valve body bottom.
Preferably, the widths of the inner baffle and the outer baffle are set as follows: the gas cannot pass straight through the filter channel.
Through above-mentioned technical scheme, form the light blocking condition between the baffle, ensure that gaseous can not the straight line pass through. The gas changes flow direction as it passes through the filter passage, continuously reducing the upward velocity of the entrained solid dust in the gas stream.
Preferably, the inner diameter of the outer baffle and the outer diameter of the inner baffle increase in sequence along the arrangement direction of the baffles.
Through the technical scheme, when the middle column and the valve body are disassembled, the inner baffle fixed with the middle column cannot interfere with the outer baffle on the valve body, and the valve body can be directly taken out of the middle column, so that the disassembly and the assembly of the check valve are facilitated; on this basis, the baffle still has the effect of preventing gas from passing straight through the filter passage.
Preferably, be equipped with the intake pipe in the valve body, the one end of intake pipe is the air inlet, the other end and the center pillar of intake pipe are connected, the center pillar is the body that both ends link up, the intake pipe passes through center pillar and air inlet chamber intercommunication.
Through above-mentioned technical scheme, the intake pipe is used for admitting air, and the center pillar is fixed in order to confirm its position in the valve body on the intake pipe.
Preferably, the axes of the center pillar and the air inlet pipe are overlapped, and the center pillar and the air inlet pipe are in threaded connection through the end parts.
Through the technical scheme, after the valve body is disassembled, the center column can be conveniently disassembled and assembled with the air inlet pipe; the center pillar can be assembled with the inner baffle in advance and then assembled in the air inlet pipe, so that the assembly of the check valve is facilitated.
Preferably, the valve body comprises an upper valve body and a lower valve body which can be disassembled, and the upper valve body and the lower valve body are fixed through bolts; the sealing part is positioned on one side of the lower valve body facing the upper valve body, and the air inlet pipe is fixed on the upper valve body.
Through above-mentioned technical scheme, after last valve body and lower valve body separation, the valve plate subassembly can be directly with lower valve body separation, makes things convenient for personnel to carry out the dismouting to other parts in valve plate subassembly and the valve body.
Preferably, the end part of the valve body, which is far away from the exhaust port, is provided with a detachable valve cover, and the valve cover seals the opening part of the air inlet cavity.
Through the technical scheme, when dust passes through the one-way valve, the dust falls onto the valve cover due to gravity; the dust that gathers in the valve body can be cleared up through the mode of opening the valve gap, and is comparatively convenient.
Preferably, an air baffle is arranged in the air inlet cavity, the surface of the air baffle is opposite to the pipe orifice of the air inlet pipe, intervals are reserved between the air baffle and the pipe orifice of the air inlet pipe and between the air baffle and the valve cover, and a through groove for dust to fall is reserved between the air baffle and the inner wall of the valve body.
Through the technical scheme, when the check valve exhausts, the air baffle plate can prevent exhaust airflow from directly impacting dust on the valve cover, and the dust is prevented from flying again; the air baffle plate can play a role in blocking during air return, so that dust on the valve cover is not easy to enter the air inlet pipe.
To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:
1. the one-way valve can filter dust, so that on one hand, the one-way valve is ensured to have better one-way sealing performance, and on the other hand, the dust is not easy to generate adverse effects on subsequent communicated equipment;
2. the check valve is provided with the baffles with special structures, and light blocking conditions are formed among the baffles, so that gas cannot pass through the check valve in a straight line, and the check valve can be disassembled and assembled;
3. through setting up the valve gap, the dust in this check valve can conveniently be cleared up.
Drawings
FIG. 1 is a structural view of a check valve with a dust filtration function according to a first embodiment;
fig. 2 is a structural diagram of a check valve with a dust filtration function according to a second embodiment.
In the figure, 1, a valve body; 11. an upper valve body; 12. a lower valve body; 13. an air inlet; 14. an exhaust port; 2. a valve plate assembly; 3. an air inlet pipe; 15. a sealing part; 16. an air inlet cavity; 17. an exhaust chamber; 4. a valve cover; 5. a center pillar; 51. a limiting step; 6. a baffle plate; 61. an inner baffle; 62. an outer baffle; 18. a filtration channel; 7. a gas baffle; 19. a guide post; 8. a spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, for the utility model discloses a check valve with dust filtering function, including valve body 1, valve body 1 includes upper valve body 11 and lower valve body 12 that can split. The valve body 1 is cylindrical as a whole, the valve body 1 is provided with an air inlet 13 and an air outlet 14, wherein the air inlet 13 is positioned at the end part of the upper valve body 11, which is far away from the lower valve body 12, and the opening part of the air inlet 13 faces to the end part, which is far away from the valve body 1, along the axial direction of the valve body 1; the exhaust port 14 is located in the cylindrical side wall of the upper valve body 11, and the mouth of the exhaust port 14 faces away from the valve body 1 in the radial direction of the valve body 1. Be equipped with in the valve body 1 and be used for one-way valve plate subassembly 2 of ventilating, go up valve body 11 internal coaxial be fixed with intake pipe 3, the tip that upper valve body 11 deviates from lower valve body 12 of one end of intake pipe 3 stretches out in order to form air inlet 13, and the other end of intake pipe 3 extends to lower valve body 12.
The valve plate assembly 2 is sleeved outside the air inlet pipe 3 and is connected with the air inlet pipe 3 in a sliding mode, a sealing portion 15 for the valve plate assembly 2 to abut against is arranged in the valve body 1, and the sealing portion 15 is located on one side, away from the air inlet 13, of the valve plate assembly 2. Sealing portion 15 specifically is fixed in lower valve body 12 towards the terminal surface department of upper valve body 11, and when valve plate assembly 2 butt sealing portion 15, sealing portion 15 bears the weight of valve plate assembly 2, makes valve plate assembly 2 can not break away from intake pipe 3 downwards. When the valve plate assembly 2 abuts against the sealing portion 15, the valve plate assembly 2 divides the interior of the valve body 1 into an intake chamber 16 communicating with the intake port 13 and an exhaust chamber 17 communicating with the exhaust port 14; when the valve plate assembly 2 is separated from the sealing portion 15, the gas in the valve body 1 can sequentially exit the valve body 1 through the gas inlet chamber 16, the gas outlet chamber 17 and the gas outlet 14.
When the check valve is installed, the axial direction of the valve body 1 needs to be vertical, the air inlet 13 faces upwards, and the valve plate assembly 2 slides in the valve body 1 along with the self gravity to generate a one-way sealing effect.
A plurality of baffle plates 6 are arranged in the air inlet cavity 16, the baffle plates 6 are distributed at intervals along the length direction of the center pillar 5, and each baffle plate 6 comprises an inner baffle plate 61 fixed with the center pillar 5 and an outer baffle plate 62 fixed with the inner wall of the valve body 1. The baffle 6 is specifically a tapered annular plate, and the inner baffle 61 is sleeved outside the center pillar 5 and fixed with the center pillar 5 in a tight fit manner; the outer baffle plate 62 is welded and fixed with the inner wall of the valve body 1 through the edge of the outer ring. The inner baffle 61 and the outer baffle 62 are distributed along the arrangement direction of the baffle 6 in a staggered manner, the plate surface of the inner baffle 61 far away from the center post 5 extends towards the direction away from the valve plate assembly 2 in an inclined manner, and the plate surface of the outer baffle 62 far away from the inner wall of the valve body 1 extends towards the direction away from the valve plate assembly 2 in an inclined manner. Baffle 6 forms the filtration passageway 18 of buckling between center pillar 5 outer wall, lower valve body 12 inner wall, and the width setting of interior baffle 61, outer baffle 62 is: the gas cannot pass straight through the filter passage 18.
The size of each baffle 6 is different, and along the direction from the air inlet cavity 16 to the air outlet cavity 17, the diameters of the edges of the baffles 6 departing from the fixed ends of the baffles are sequentially increased, namely the inner diameter of the outer baffle 62 and the outer diameter of the inner baffle 61 are sequentially increased. The upper valve body 11 and the lower valve body 12 are fixed through bolts, when the upper valve body 11 is separated from the lower valve body 12, the inner baffle 61 fixed with the middle column 5 cannot interfere with the outer baffle 62 on the lower valve body 12, the middle column 5 can directly take out the lower valve body 12, and the disassembly and assembly of the check valve are facilitated; on this basis, the baffle 6 still has the effect of preventing the gas from passing straight through the filter channel 18.
The lower valve body 12 is internally fixed with an air baffle 7, the air baffle 7 is fixed on the inner wall of the lower cavity through two ends in the length direction, the surface of the air baffle 7 is over against the pipe orifice of the air inlet pipe 3, spaces are reserved between the air baffle 7 and the pipe orifice of the air inlet pipe 3 and between the air baffle 7 and the valve cover 4, and a through groove for dust to fall is reserved between the side wall of the air baffle 7 and the inner wall of the valve body 1.
When the check valve is installed, the axial direction of the valve body 1 is required to be vertical, and the air inlet 13 is required to be upward. The check valve can pass through dust-containing gas in the use process, and the check valve ensures that the gas cannot pass through linearly by arranging the baffles 6 with special structures and forming light blocking conditions among the baffles 6. The gas changes flow direction as it passes through the filter passage 18, continuously reducing the upward velocity of the solid dust entrained in the gas stream; the baffle 6 that the slope downwardly extending has better fender dirt effect, and can the direction fall in the downward landing of dust of upper surface, impels on the dust deposit valve gap 4, and this exhaust check valve has the better effect of filtering the dust. Because the dust is difficult to pass through the filtering channel 18, the dust is difficult to attach to the sealing part 15 and the valve plate assembly 2, and the one-way valve is ensured to have better one-way sealing performance; on the other hand, the dust is filtered by the one-way valve, and the dust is not easy to generate adverse effect on subsequent communicated equipment.
When the check valve exhausts, the air baffle 7 can prevent exhaust airflow from directly impacting dust on the valve cover 4, and prevent the dust from flying again; the air baffle 7 can play a role in blocking during air return, so that dust on the valve cover 4 is not easy to enter the air inlet pipe 3. The dust accumulated in the valve body 1 can be cleaned in a mode of opening the valve cover 4, and the cleaning is convenient.
Example two:
referring to fig. 2, a check valve with a dust filtering function includes a valve body 1, and the difference between the second embodiment and the first embodiment is that: intake pipe 3 is located valve body 12 down, and intake pipe 3 passes valve gap 4 and is fixed with valve gap 4, and the one end of intake pipe 3 stretches out in order to form air inlet 13 from the tip that valve gap 4 deviates from last valve body 11, and the other end of intake pipe 3 extends to valve body 12 down. A guide pillar 19 is coaxially fixed in the upper valve body 11, the valve plate assembly 2 is arranged outside the guide pillar 19 in a sliding mode, the middle pillar 5 and the guide pillar 19 are connected through end threads, and the end portion, away from the guide pillar 19, of the middle pillar 5 is sealed. A spring 8 is arranged in the upper valve body 11, and the spring 8 provides restoring force for the valve plate assembly 2.
When the check valve of this embodiment is installed, the axial direction of the valve body 1 must be vertical, and the air inlet 13 faces downward, and the check valve of this embodiment can also realize the function of filtering dust.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The check valve with the dust filtering function comprises a valve body (1), wherein the valve body (1) is provided with an air inlet (13) and an air outlet (14), a valve plate assembly (2) and a sealing part (15) for the valve plate assembly (2) to abut against are movably arranged in the valve body (1), and when the valve plate assembly (2) abuts against the sealing part (15), the valve plate assembly (2) divides the interior of the valve body (1) into an air inlet cavity (16) communicated with the air inlet (13) and an air outlet cavity (17) communicated with the air outlet (14); the method is characterized in that: a plurality of baffles (6) are arranged in the air inlet cavity (16), the baffles (6) are distributed at intervals along the air exhaust direction, and bent filtering channels (18) are formed among the baffles (6).
2. The check valve with a dust filtering function as claimed in claim 1, wherein: a center pillar (5) is arranged in the air inlet cavity (16), and the baffle (6) comprises an inner baffle (61) fixed with the center pillar (5) and an outer baffle (62) fixed with the inner wall of the valve body (1); interior baffle (61) are the annular and the cover is established outside being fixed in center pillar (5), outer baffle (62) are also the annular, outer baffle (62) are fixed through outer loop edge and valve body (1) inner wall, interior baffle (61), outer baffle (62) are along the crisscross distribution of array direction of baffle (6).
3. The check valve with dust filtering function as claimed in claim 2, wherein: interior baffle (61), outer baffle (62) are the annular slab that has the tapering, the face that interior baffle (61) was kept away from center pillar (5) extends to the direction slope of valve plate subassembly (2) dorsad, the face that valve body (1) inner wall was kept away from in outer baffle (62) extends to the direction slope of valve plate subassembly (2) dorsad.
4. The check valve with dust filtering function as claimed in claim 2, wherein: the widths of the inner baffle (61) and the outer baffle (62) are set as follows: the gas cannot pass straight through the filter passage (18).
5. The check valve with a dust filtering function as claimed in claim 4, wherein: the inner diameter of the outer baffle (62) and the outer diameter of the inner baffle (61) are sequentially increased along the arrangement direction of the baffles (6).
6. The check valve with dust filtering function as claimed in claim 2, wherein: be equipped with intake pipe (3) in valve body (1), the one end of intake pipe (3) is air inlet (13), the other end and center pillar (5) of intake pipe (3) are connected, center pillar (5) are the body that both ends link up, intake pipe (3) are through center pillar (5) and admit air chamber (16) intercommunication.
7. The check valve with a dust filtering function as claimed in claim 6, wherein: the axis of center pillar (5), intake pipe (3) coincide, center pillar (5), intake pipe (3) pass through tip threaded connection.
8. The check valve with a dust filtering function as claimed in claim 6, wherein: the valve body (1) comprises an upper valve body (11) and a lower valve body (12) which can be disassembled, and the upper valve body (11) and the lower valve body (12) are fixed through bolts; the sealing part (15) is positioned on one side, facing the upper valve body (11), of the lower valve body (12), and the air inlet pipe (3) is fixed on the upper valve body (11).
9. The check valve with a dust filtering function according to claim 1 or 6, wherein: the end part of the valve body (1) far away from the exhaust port (14) is provided with a detachable valve cover (4), and the valve cover (4) seals the opening part of the air inlet cavity (16).
10. The check valve with a dust filtering function as claimed in claim 9, wherein: be provided with in air inlet chamber (16) and keep off gas board (7), the face of keeping off gas board (7) is just to the mouth of pipe of intake pipe (3), all leave the interval between the mouth of pipe of air board (7) and intake pipe (3), valve gap (4), leave the logical groove that supplies the dust whereabouts between the inner wall of keeping off gas board (7) and valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921365775.3U CN210397825U (en) | 2019-08-21 | 2019-08-21 | One-way valve with dust filtering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921365775.3U CN210397825U (en) | 2019-08-21 | 2019-08-21 | One-way valve with dust filtering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397825U true CN210397825U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921365775.3U Active CN210397825U (en) | 2019-08-21 | 2019-08-21 | One-way valve with dust filtering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210397825U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486506A (en) * | 2019-08-21 | 2019-11-22 | 浙江方远力鑫真空设备有限公司 | Gravity type exhaust check valve |
| CN113430971A (en) * | 2021-06-24 | 2021-09-24 | 深圳市睿泰科技术有限公司 | Servo motor driver and gate device |
-
2019
- 2019-08-21 CN CN201921365775.3U patent/CN210397825U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486506A (en) * | 2019-08-21 | 2019-11-22 | 浙江方远力鑫真空设备有限公司 | Gravity type exhaust check valve |
| CN110486506B (en) * | 2019-08-21 | 2021-01-08 | 浙江方远力鑫真空设备有限公司 | Gravity type exhaust one-way valve |
| CN113430971A (en) * | 2021-06-24 | 2021-09-24 | 深圳市睿泰科技术有限公司 | Servo motor driver and gate device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Check valve with dust filtering function Effective date of registration: 20201209 Granted publication date: 20200424 Pledgee: Taizhou Branch of Industrial Bank Co.,Ltd. Pledgor: Zhejiang fangyuanlixin Vacuum Equipment Co.,Ltd. Registration number: Y2020330001164 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |