CN211751790U - Positive pressure air exchange check valve and cleaning device - Google Patents
Positive pressure air exchange check valve and cleaning device Download PDFInfo
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- CN211751790U CN211751790U CN201922476414.2U CN201922476414U CN211751790U CN 211751790 U CN211751790 U CN 211751790U CN 201922476414 U CN201922476414 U CN 201922476414U CN 211751790 U CN211751790 U CN 211751790U
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Abstract
The utility model provides a malleation check valve and belt cleaning device of taking a breath, malleation check valve of taking a breath includes: the valve shell is of a bottle cap structure, and a water valve structure and a ventilation valve structure are arranged on the valve shell; the water valve structure comprises a first inner boss communicated with the inner side and a first outer boss communicated with the outer side, and the first inner boss and the first outer boss are communicated through a water valve channel penetrating through the inner side and the outer side; the water valve passage consists of a water valve inner cavity, a water valve middle cavity and a water valve outer cavity which are sequentially communicated from inside to outside; the aperture of the joint of the water valve middle cavity and the water valve inner cavity is smaller than that of the joint of the water valve middle cavity and the water valve outer cavity; the middle cavity of the water valve is provided with an anti-reflux valve core, and a baffle plate with grid holes is embedded in the outer cavity of the water valve; the scavenging valve structure comprises a second inner boss communicated with the inner side, and the second inner boss is provided with a scavenging valve channel which penetrates through the inner side and the outer side; a scavenging valve core is arranged in the scavenging valve channel, and a cover body with holes is embedded in the port of the second inner boss of the air valve channel. The utility model discloses prevent the sewage backward flow.
Description
Technical Field
The utility model relates to a check valve technical field, in particular to malleation check valve and belt cleaning device of taking a breath.
Background
At present, cleaning devices are sometimes used in procedures of treatment, disinfection and the like in the medical field, and cleaning devices are also commonly used in cleaning procedures of cleaning external organs of human bodies, such as nasal cavity cleaning, female pudendum cleaning, constipation and anus flushing cleaning and the like. The prior cleaning device generally realizes the natural outflow of water in the water storage bottle body for cleaning by inverting the water storage bottle body, however, the problem of the mode is that: the water pressure is unstable, and the water pressure is too high, which easily causes the cleaned person to be choked in the cleaning process; and (II) sewage backflow easily occurs, so that the use experience and the use safety of the product are greatly reduced.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above problems, and an object of the present invention is to provide a positive pressure air exchange check valve and a cleaning device.
The utility model provides a malleation check valve of taking a breath has such characteristic, include: the valve shell is of a bottle cap structure and is provided with an inner side and an outer side which are opposite, and the valve shell is provided with a water valve structure and a ventilation valve structure; the water valve structure comprises a first inner boss communicated with the inner side and a first outer boss communicated with the outer side, and the first inner boss and the first outer boss are communicated through a water valve channel penetrating through the inner side and the outer side; the water valve passage consists of a water valve inner cavity, a water valve middle cavity and a water valve outer cavity which are sequentially communicated from inside to outside; the aperture D1 at the joint of the water valve middle cavity and the water valve inner cavity is smaller than the aperture D2 at the joint of the water valve middle cavity and the water valve outer cavity; the middle cavity of the water valve is provided with an anti-reflux valve core, and a baffle plate with grid holes is embedded in the outer cavity of the water valve; the scavenging valve structure comprises a second inner boss communicated with the inner side, and the second inner boss is provided with a scavenging valve channel which penetrates through the inner side and the outer side; a scavenging valve core is arranged in the scavenging valve channel, and a cover body with holes is embedded in the port of the second inner boss of the air valve channel.
The utility model provides an among the positive pressure check valve of taking a breath, can also have such characteristic: wherein, prevent that the reflux case is spherical, prevent that the diameter D3 of reflux case satisfies: d2 > D3 > D1.
The utility model provides an among the positive pressure check valve of taking a breath, can also have such characteristic: wherein, the diameter D3 of the anti-reflux valve core is 3 mm-5 mm.
The utility model provides an among the positive pressure check valve of taking a breath, can also have such characteristic: wherein, the anti-reflux valve core is a glass bead or a steel bead.
The utility model provides an among the positive pressure check valve of taking a breath, can also have such characteristic: the air valve passage consists of an air valve inner cavity and an air valve outer cavity which are sequentially communicated from inside to outside, and the aperture D4 of the air valve inner cavity is larger than the aperture D5 of the air valve outer cavity; the valve core of the scavenging valve consists of a cylindrical upper end part and a truncated cone-shaped lower end part; the outer diameter D6 of the upper end part satisfies: d6 < D5; the outer diameter D7 of the lower end part satisfies: d7 is more than or equal to D5 and less than D4.
The utility model provides an among the positive pressure check valve of taking a breath, can also have such characteristic: wherein, the lower end part is provided with a plurality of ventilation notches.
The utility model provides an among the positive pressure check valve of taking a breath, can also have such characteristic: wherein, the outer peripheral surface of the valve shell is provided with vertical convex lines.
The utility model provides an among the positive pressure check valve of taking a breath, can also have such characteristic: wherein the valve housing is provided with an internal thread on an inner peripheral surface thereof.
The utility model also provides a belt cleaning device has such characteristic, include: a bottle body for storing a cleaning medium; a check valve connected to a mouth of the bottle body, the check valve being the positive pressure ventilation check valve; the pump body is arranged inside the bottle body and is used for conveying the cleaning medium in the bottle body; the cleaning pipe is connected with the first outer boss of the check valve.
The utility model discloses an effect and effect:
the positive pressure air exchange check valve of the utility model is provided with a double-valve structure of a water valve structure and an air exchange valve structure, the aperture of the joint of a water valve middle cavity and a water valve inner cavity is smaller than that of the joint of the water valve middle cavity and a water valve outer cavity, a spherical anti-backflow valve core is arranged in the water valve middle cavity, and a separation blade with grid holes is embedded in the water valve outer cavity, so that the spherical anti-backflow valve core moves towards the water valve outer cavity and is separated by the separation blade under the positive pressure condition, and the water at the inner side can smoothly flow into the outer side from the inner side through a water valve channel at the moment to form pulse; meanwhile, the ventilation valve structure is in a closed state under the positive pressure condition, and water is prevented from flowing out of the ventilation valve channel. After the pressure is relaxed, the spherical anti-backflow valve element falls back to move towards the inner cavity of the water valve and blocks the communication between the middle cavity of the water valve and the inner cavity of the water valve, so that water backflow can be prevented; meanwhile, the valve core of the scavenging valve automatically falls back after the pressure is relaxed, and the external gas can enter the inner side through a gap formed between the valve core of the scavenging valve and a channel of the scavenging valve, so that the internal pressure is adjusted, the water pressure is kept stable, and the condition of overlarge water pressure is avoided. Adopt the utility model discloses a malleation check valve and belt cleaning device of taking a breath can realize taking a breath and make the malleation effect can play a role, prevents the sewage backward flow when can pulse the play water smoothly again, and convenience simple to use is applicable to cleaning procedures such as various medicine washing, water washing.
Drawings
FIG. 1 is a front view of a positive pressure check valve according to an embodiment of the present invention;
FIG. 2 is a top view of a positive pressure breather check valve in an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken at section A-A of FIG. 2;
FIG. 4 is a cross-sectional view of a valve housing in an embodiment of the present invention, taken at section A-A (shown in phantom);
FIG. 5 is a bottom view of a valve housing in an embodiment of the present invention;
fig. 6A is a front view of a gas exchange valve cartridge in an embodiment of the present invention;
fig. 6B is a bottom view of a gas exchange valve cartridge in an embodiment of the present invention;
fig. 7 is a schematic view illustrating a water outlet principle of the valve structure of the positive pressure ventilation check valve according to the embodiment of the present invention;
FIG. 8 is an enlarged view of FIG. 7 at B;
fig. 9 is a schematic view of the ventilation and water backflow prevention principle of the positive pressure ventilation check valve according to the embodiment of the present invention;
FIG. 10 is an enlarged view of FIG. 8 at C;
fig. 11 is a schematic structural view of a cleaning device according to an embodiment of the present invention.
Detailed Description
In order to make the technical means, creation characteristics, achievement purpose and efficiency of the utility model easy to understand and understand, the following embodiment combines the drawings to be right the positive pressure air exchange check valve and the cleaning device of the utility model are specifically explained.
< example >
The positive pressure check valve 100 of the present embodiment includes a valve housing 10, as shown in fig. 1 and 5, the valve housing 10 is a bottle cap structure having an inner side and an outer side, wherein the inner side corresponds to the water storage side and the outer side corresponds to the water outlet side. The valve housing 10 is provided at an outer circumferential surface thereof with vertical ribs 11 for increasing frictional force when screwing the positive pressure check valve 100 to the liquid storage bottle body, so that the screwing operation becomes convenient. The valve housing 10 is provided at an inner circumferential surface thereof with an internal thread 12 threadedly coupled to an external thread of a bottle mouth of the bottle body, and in this embodiment, as shown in fig. 5, the internal thread 12 is provided as a discontinuous thread, which helps to discharge air and pressure from the discontinuous gap when the positive pressure check valve 100 is unscrewed, so that the unscrewing operation is facilitated.
As shown in fig. 2-3, the valve housing 10 has a water valve arrangement 20 and a gas exchange valve arrangement 30.
As shown in fig. 3 to 4, the water valve structure 10 includes a first inner boss 21 communicating with the inside and a first outer boss 22 communicating with the outside, and the first inner boss 21 and the first outer boss 22 communicate via a water valve passage 23 passing through the inside and the outside. The water valve passage 23 is composed of a water valve inner cavity 231, a water valve middle cavity 232 and a water valve outer cavity 233 which are sequentially communicated from inside to outside, the water valve inner cavity 231 and the water valve outer cavity 233 are both cylindrical cavities, and the water valve middle cavity 232 is of a cavity structure with the lower end part smaller than the upper end part. The aperture D1 of the junction of the water valve middle cavity and the water valve inner cavity is smaller than the aperture D2 of the junction of the water valve middle cavity and the water valve outer cavity. Install in the water valve lumen 232 and prevent the reflux case 24, prevent that the reflux case is spherical, prevent that the diameter D3 of reflux case satisfies: d2 > D3 > D1, preferably, the backflow-preventing valve core is glass beads or steel balls, and the diameter D3 is 3 mm-5 mm. The water valve outer cavity 233 is internally fitted with a baffle 25 having mesh holes, and preferably, the mesh of the baffle 25 is criss-cross as shown in fig. 2.
As shown in fig. 3 to 4, the gas exchange valve structure 20 includes a second inner boss 31 communicating with the inside, and the second inner boss 31 is opened with a gas exchange valve passage 32 penetrating the inside and the outside. The scavenging valve passage 32 is composed of an air valve inner cavity 321 and an air valve outer cavity 322 which are sequentially communicated from inside to outside, and the aperture D4 of the air valve inner cavity is larger than the aperture D5 of the air valve outer cavity. A scavenging valve core 33 is installed in the scavenging valve channel 32, and a cover body 34 with a hole is embedded at the port of the air valve channel 32 in the air valve inner cavity 321. The external shape of the perforated cover 34 matches the port of the air valve cavity 321, and the internal through hole of the perforated cover 34 is a cylindrical through hole. As shown in fig. 6A, the gas exchange valve spool 33 is composed of a cylindrical upper end 331 and a truncated-cone-shaped lower end 332, the outer diameter D6 of the upper end satisfying: d6 < D5, and the outer diameter D7 of the lower end part satisfies: d7 is more than or equal to D5 and less than D4, and the outer diameter D7 of the lower end part is gradually increased from top to bottom, so that the connection part of the air valve inner cavity 321 and the air valve outer cavity 322 can be blocked when the air exchange valve core 33 moves upwards. As shown in fig. 3 and 6B, the valve core 33 of the scavenging valve is provided with an opening from the lower end, and the middle part of the valve core is a hollow structure all the way up to the upper end, so that the valve core 33 of the scavenging valve is lightened, is more flexible, and is easier to move upwards after being impacted by the inner side pressure. As shown in fig. 6A-6B, the lower end 332 of the gas exchange valve spool 33 is further provided with a plurality of vent notches.
As shown in fig. 11, the present embodiment further provides a cleaning apparatus, including: bottle 1, back valve, pump body 2, electric connection interface 3, scavenge pipe 4. The bottle body 1 is a liquid storage bottle body and can be used for storing liquid such as water, disinfectant, cleaning liquid, liquid medicine and the like used as cleaning media. The check valve is the above-mentioned positive pressure check valve 100, and the positive pressure check valve 100 is screwed to the opening of the bottle body 1. The pump body 2 is arranged inside the bottle body 1 and used for conveying cleaning media in the bottle body, so that an automatic water outlet effect is achieved. The side wall of the bottle body 1 is provided with an electric connection interface 3, the pump body 2 is electrically connected with the electric connection interface 3, and the electric connection interface 3 is used for connecting the pump body 2 with a pulse power supply through a connecting wire. The cleaning pipe 4 is fitted around the outer periphery of the first outer boss 22 of the positive pressure ventilation check valve 100. The cleaning tube 4 can be made of metal hose or plastic hose according to actual requirements, and the end (not shown) of the cleaning tube 4 can be connected with a shower head or a nozzle according to actual requirements. In addition, an inner hose can be connected to the interior of the bottle body 1 as required, the inner hose is connected to the outer peripheral surface of the first inner boss 21 through a sleeve, and the other end of the inner hose is inserted below the liquid level of the cleaning medium, so that water can be smoothly discharged when the liquid level is too low.
The operation principle of the cleaning device and the positive pressure ventilation check valve 100 of the present embodiment is as follows:
when the pump body 2 pumps water, the interior of the bottle body 1 is in positive pressure. At this time, as shown in fig. 7-8, the spherical anti-backflow valve element 24 is impacted by internal water pressure (as shown by the black arrow on the left side in fig. 7) and lifted up, so that the inner cavity 231 of the water valve is communicated with the inner cavity 232 of the water valve, the liquid in the bottle flows into the middle cavity of the water valve from the inside, and then flows into the cleaning pipeline through the meshes on the baffle 25 of the outer cavity 231 of the water valve, and pulse-type water outlet is achieved. At the same time, the valve core 33 of the scavenging valve is pushed up by the impact of the internal water pressure (as shown by the black arrow on the right side in fig. 7), so that the lower end part of the valve core 33 of the scavenging valve blocks the connection between the valve inner cavity 321 and the valve outer cavity 322, thus preventing water from flowing out from the scavenging valve passage. Therefore, pulse type smooth water outlet is realized, and water outlet from the water valve structure is ensured, and water outlet from the air valve structure is avoided.
When the pump body 2 does not pump water, the internal pressure of the bottle body 1 is relaxed. At this time, as shown in fig. 9-10, the spherical anti-backflow valve element 24 falls back to block the connection between the water valve middle cavity 232 and the water valve inner cavity 231, so that the backflow of the sewage in the cleaning pipe can be avoided. Meanwhile, the valve core of the scavenging valve automatically falls back after the pressure is relaxed, external gas (shown as hollow arrows in fig. 9-10) can enter the inner side of the scavenging valve through a gap formed between the valve core 33 of the scavenging valve and a scavenging valve channel 23 in the falling process, and when the valve core 33 of the scavenging valve falls onto the cover body 34 with holes, the gas can still enter the inner side through the vent gap, so that the internal pressure regulation is realized, the water pressure is kept stable, and the condition of overlarge water pressure is avoided. Thus, ventilation is realized, the internal pressure of the bottle body is stable, the situation that the person to be cleaned is choked due to overlarge water pressure in the cleaning process is avoided, and the effect of preventing sewage from flowing back is realized.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. A positive pressure venting check valve, comprising: a valve housing, which is provided with a valve body,
the valve shell is of a bottle cap structure and is provided with an inner side and an outer side which are opposite, and a water valve structure and a ventilation valve structure are arranged on the valve shell;
the water valve structure comprises a first inner boss communicated with the inner side and a first outer boss communicated with the outer side, and the first inner boss and the first outer boss are communicated through a water valve channel penetrating through the inner side and the outer side; the water valve passage consists of a water valve inner cavity, a water valve middle cavity and a water valve outer cavity which are sequentially communicated from inside to outside;
the aperture D1 at the joint of the water valve middle cavity and the water valve inner cavity is smaller than the aperture D2 at the joint of the water valve middle cavity and the water valve outer cavity;
the middle cavity of the water valve is provided with an anti-backflow valve core, and a baffle plate with grid holes is embedded in the outer cavity of the water valve;
the air exchange valve structure comprises a second inner boss communicated with the inner side, and the second inner boss is provided with an air exchange valve channel which penetrates through the inner side and the outer side;
and a scavenging valve core is arranged in the scavenging valve channel, and a cover body with a hole is embedded in the port of the second inner boss of the air valve channel.
2. The positive pressure ventilation check valve as set forth in claim 1, wherein:
wherein, prevent that the backward flow case is spherical, prevent that the diameter D3 of backward flow case satisfies: d2 > D3 > D1.
3. The positive pressure ventilation check valve as set forth in claim 2 wherein:
wherein, the diameter D3 of the anti-reflux valve core is 3 mm-5 mm.
4. The positive pressure venting check valve as defined in claim 2 or 3, wherein:
wherein, the anti-reflux valve core is a glass bead or a steel bead.
5. The positive pressure ventilation check valve as set forth in claim 1, wherein:
the air valve channel consists of an air valve inner cavity and an air valve outer cavity which are sequentially communicated from inside to outside, and the aperture D4 of the air valve inner cavity is larger than the aperture D5 of the air valve outer cavity;
the valve core of the scavenging valve consists of a cylindrical upper end part and a truncated cone-shaped lower end part;
the outer diameter D6 of the upper end part satisfies: d6 < D5;
the outer diameter D7 of the lower end part satisfies: d7 is more than or equal to D5 and less than D4.
6. The positive pressure ventilation check valve as set forth in claim 5, wherein:
wherein, a plurality of ventilation gaps are arranged on the lower end part.
7. The positive pressure ventilation check valve as set forth in claim 1, wherein:
wherein, the outer peripheral surface of the valve housing is provided with vertical ribs.
8. The positive pressure ventilation check valve as set forth in claim 1, wherein:
wherein the valve housing is provided with an internal thread on an inner peripheral surface thereof.
9. A cleaning device, comprising:
a bottle body for storing a cleaning medium;
a check valve connected to a mouth of the bottle body, the check valve being the positive pressure ventilation check valve according to any one of claims 1 to 8;
the pump body is arranged inside the bottle body and is used for conveying the cleaning medium in the bottle body;
the cleaning pipe is connected with the first outer boss of the check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476414.2U CN211751790U (en) | 2019-12-31 | 2019-12-31 | Positive pressure air exchange check valve and cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476414.2U CN211751790U (en) | 2019-12-31 | 2019-12-31 | Positive pressure air exchange check valve and cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211751790U true CN211751790U (en) | 2020-10-27 |
Family
ID=72891441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922476414.2U Active CN211751790U (en) | 2019-12-31 | 2019-12-31 | Positive pressure air exchange check valve and cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211751790U (en) |
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2019
- 2019-12-31 CN CN201922476414.2U patent/CN211751790U/en active Active
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