CN217430546U - Waste liquid discharge valve and medical suction system - Google Patents
Waste liquid discharge valve and medical suction system Download PDFInfo
- Publication number
- CN217430546U CN217430546U CN202220241431.7U CN202220241431U CN217430546U CN 217430546 U CN217430546 U CN 217430546U CN 202220241431 U CN202220241431 U CN 202220241431U CN 217430546 U CN217430546 U CN 217430546U
- Authority
- CN
- China
- Prior art keywords
- valve
- waste liquid
- joint body
- liquid discharge
- joint
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 76
- 239000002699 waste material Substances 0.000 title claims abstract description 71
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 46
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 11
- 230000005484 gravity Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
Images
Abstract
The utility model discloses a waste liquid discharge valve and medical suction system, this waste liquid discharge valve, include: a valve body in which a vertically extending cylindrical valve cavity is formed, the valve body having a side portion, an upper end and a lower end, the valve cavity being formed with an upstream suction port to which an upstream suction pipe is connected, a downstream suction port to which a suction pump is connected via a downstream suction pipe, and a discharge port at which a check valve is provided, respectively; the valve core is arranged in the valve cavity; downstream suction opening department is provided with the pilot joint, the pilot joint includes: a joint body detachably connected to the downstream suction port, a lower end of the joint body extending into the valve chamber; a guide sleeve disposed in the joint body; and the spring is arranged in the joint body and is used for pushing the guide sleeve downwards.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a waste liquid blow-off valve and medical suction system.
Background
Medical suction systems are used for aspirating waste liquids generated by operations and the human body itself, suction systems of the prior art comprising: a suction pump, a waste liquid discharge valve, a liquid storage bottle, an upstream suction pipe and a downstream suction pipe; the waste liquid discharge valve is internally provided with a valve cavity, a valve core is arranged in the valve cavity, an upstream suction port is formed at the side part of the valve cavity, a downstream suction port is formed at the upper end of the valve cavity, a discharge port is formed at the lower end of the valve cavity, the suction pump is connected with the downstream suction port through a downstream suction pipe, the near end of the upstream suction pipe is connected to the upstream suction port, and the liquid storage bottle is communicated to the upstream suction pipe. The distal end of the upstream suction tube is used for aiming at the waste liquid of the human body, and the suction pump operates to suck the valve cavity and the upstream suction tube into a negative pressure state through the downstream suction tube, so that the waste liquid of the human body enters the upstream suction tube and flows into the liquid storage bottle. If the liquid storage bottle is filled with the waste liquid and cannot be replaced in time, the waste liquid can enter the valve cavity through the upstream suction pipe. If no waste liquid or little waste liquid exists in the valve cavity, the valve core blocks the discharge port under the action of gravity, so that the system can be maintained in a suction state, and if the waste liquid reserved in the valve cavity reaches a certain amount, the buoyancy generated by the waste liquid to the valve core (made of a material with lower density) enables the upper part of the valve core to block the downstream suction port so as to open the discharge port, so that the waste liquid is discharged through the discharge port, and the waste liquid is prevented from overflowing to the downstream suction port and entering the suction pump along the downstream suction pipe to damage the suction pump.
However, because the valve core in the waste liquid discharge valve can not obtain a large upper and lower floating range due to the buoyancy, in the prior art, the floating range of the valve core is set to be small, so that the opening degree of the discharge port is small after the valve core floats upwards, waste liquid can not be discharged timely, the occupied time proportion of the system in a suction state is small, and the working efficiency of the system is low.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem that exists among the prior art, the embodiment of the utility model provides a waste liquid discharge valve and medical suction system.
In order to solve the technical problem, the embodiment of the utility model adopts the following technical scheme:
a waste liquid discharge valve comprising:
a valve body in which a vertically extending cylindrical valve cavity is formed, the valve body having a side portion, an upper end and a lower end, the valve cavity being formed with an upstream suction port to which an upstream suction pipe is connected, a downstream suction port to which a suction pump is connected via a downstream suction pipe, and a discharge port at which a check valve is provided, respectively;
the valve core is arranged in the valve cavity; wherein:
downstream suction opening department is provided with the pilot joint, the pilot joint includes:
a joint body detachably connected to the downstream suction port, a lower end of the joint body extending into the valve chamber;
a guide sleeve disposed in the joint body;
and the spring is arranged in the joint body and is used for pushing the guide sleeve downwards so that the guide sleeve protrudes out of the lower end of the joint body and the lower end of the guide sleeve is firstly blocked after the valve core floats upwards.
Preferably, the inner hole of the joint body is provided with a limiting step, the middle part of the periphery of the guide sleeve is provided with an annular table, the limiting step is used for stopping the annular table, and the spring is sleeved on the guide sleeve above the annular table.
Preferably, the pilot joint further comprises a pressing sleeve, a lower end of the pressing sleeve extends into the joint body from an upper end of the joint body to press against the spring, and an upper end of the pressing sleeve is formed with an outer ring to form a threaded connection with an outer side of the joint body.
Preferably, the outer peripheral surface of the valve core is provided with a plurality of axially through guide grooves, and the guide grooves are circumferentially arranged.
Preferably, an annular groove is formed in the outer peripheral surface of the valve body at a position corresponding to the upstream suction port.
Preferably, the waste liquid discharge valve further comprises a bottom cover screwed to the bottom of the valve body, and the middle part of the bottom cover forms the discharge port.
Preferably, a filter cartridge is arranged in the upstream suction port, and a filter hole is formed in the wall of the filter cartridge.
Preferably, the filter cartridge is mounted on a bushing, and a collar is mounted on an inner hole of the upstream suction port to stop the bushing.
The utility model also discloses a medical suction system, include: the suction pump, upstream suction tube, low reaches suction tube, stock solution bottle, characterized by still including above-mentioned waste liquid discharge valve.
Compared with the prior art, the embodiment of the utility model provides a waste liquid blow-off valve and medical suction system's beneficial effect is:
this waste liquid discharge valve has increased the come-up stroke of case through making the case obtain the secondary come-up process, and then makes the discharge port discharge waste liquid under the condition of opening completely, and then makes the waste liquid can in time discharge, has improved suction system's work efficiency.
Drawings
Fig. 1 is a view of a first working process of a waste liquid discharge valve according to an embodiment of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is an enlarged view of a portion B of fig. 1.
Fig. 4 is a view of a second working process of the waste liquid discharge valve according to an embodiment of the present invention.
Fig. 5 is a view of a third working process of the waste liquid discharge valve according to the embodiment of the present invention.
In the figure:
10-a valve body; 11-a valve cavity; 12-an upstream suction port; 13-downstream suction port; 14-a discharge port; 15-bottom cover; 20-a valve core; 21-a diversion trench; 22-an annular groove; 30-a pilot joint; 31-a joint body; 311-limit step; 32-guiding the sleeve firstly; 321-an annular table; 33-a spring; 34-pressing the sleeve; 341-outer ring; 40-a one-way valve; 50-a filter cartridge; 51-a bushing; 52-using a retaining ring; 100-an upstream suction tube; 200-downstream suction tube.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 5, the embodiment of the utility model discloses a waste liquid discharge valve and medical suction system including this waste liquid discharge valve, this medical suction system still includes: a suction pump, an upstream suction tube 100, a down-moving suction tube, and a reservoir bottle.
The waste liquid discharge valve includes a valve body 10, a valve spool 20, and a pilot joint 30. A vertically extending cylindrical valve chamber 11 is formed in the valve body 10, a laterally extending upstream suction port 12 communicating with the valve chamber 11 is provided at a side portion of the valve body 10, a downstream suction port 13 communicating with a top portion of the valve chamber 11 is provided at an upper end of the valve body 10, a bottom cover 15 is provided at a bottom portion of the valve chamber 11, and a discharge port 14 communicating with the bottom portion of the valve chamber 11 and vertically extending downward is formed at a middle portion of the bottom cover 15. The valve core 20 is configured to be a substantially cylindrical shape, and the valve core 20 is disposed in the valve chamber 11 with a certain gap from the chamber wall of the valve chamber 11 so that the valve core 20 can float up and down freely.
The pilot connector 30 is disposed at the downstream suction port 13, the suction pump is connected to the pilot connector 30 via the downstream suction tube 200, the downstream suction tube 200 is communicated with the valve chamber 11, the proximal end of the upstream suction tube 100 is connected to the upstream suction port 12, and the reservoir bottle is disposed on the upstream suction tube 100. The suction pump operates to suck the valve cavity 11 of the valve body 10 and the upstream suction tube 100 into a negative pressure state, so that the waste liquid of the human body enters the upstream suction tube 100 through the distal end of the upstream suction tube 100 and flows into the liquid storage bottle when passing through the upstream suction tube 100, and if the liquid storage bottle is filled with the waste liquid, the waste liquid enters the valve cavity 11 of the valve body 10 through the upstream suction tube 100 as shown in fig. 1.
In the present invention, as shown in fig. 1 and 2, the pilot joint 30 includes: a joint body 31, a pilot sleeve 32, a pressure sleeve 34, and a spring 33. The joint body 31 is screwed with the upper end of the valve body 10, the lower end of the joint body 31 protrudes out of the cavity wall at the top of the valve cavity 11, an upward limiting step 311 is formed in an inner hole of the joint body 31, the pilot sleeve 32 is arranged in the joint body 31, an annular table 321 is formed on the periphery of the middle part of the pilot sleeve 32, and the annular table 321 is positioned above the limiting step 311; the spring 33 is sleeved on the pilot sleeve 32 above the annular table 321, the pressing sleeve 34 extends into the inner hole of the joint body 31 from the upper end of the joint body 31 and is located above the spring 33, the lower end of the pressing sleeve 34 presses against the upper end of the spring 33, so that the spring 33 is located between the annular table 321 and the pressing sleeve 34 and is pressed, the spring 33 is further pushed downwards against the pilot sleeve 32, the lower end of the pilot sleeve 32 is further protruded out of the lower end of the joint body 31 by a distance under the limitation of the limiting step 311, the upper end of the pressing sleeve 34 is provided with an outer ring 341, the outer ring 341 is in threaded connection with the outer periphery of the upper end of the joint body 31, the depth of the lower end of the pressing sleeve 34 is adjusted by screwing the pressing sleeve 34, and the compression amount of the spring 33 is adjusted.
The operation of the above waste liquid discharge valve is described as follows:
if the liquid storage bottle on the upstream suction tube 100 is not filled with the waste liquid, the suction pump operates, so that the valve cavity 11 in the valve body 10 and the upstream suction tube 100 are in a negative pressure state, the check valve 40 is closed due to the negative pressure state, the waste liquid carried in the air flow flows into the liquid storage bottle when passing through the upstream suction tube 100, the air flow enters the valve cavity 11 and flows out from the downstream suction tube 200, and the waste liquid cannot enter the valve cavity 11.
As shown in fig. 1, if the liquid storage bottle on the upstream suction tube 100 is filled with the waste liquid, the suction pump operates to make the valve cavity 11 and the upstream suction tube 100 in the valve body 10 in a negative pressure state, the air flow carries the waste liquid through the upstream suction tube 100 into the valve cavity 11, the air flow flows upwards to be sucked and discharged from the downstream, and the waste liquid flows downwards under the action of gravity to enter the cavity bottom of the valve cavity 11.
As shown in fig. 4, when the amount of the waste liquid remaining in the valve cavity 11 reaches a certain amount, the waste liquid floats up the valve core 20 due to the buoyancy of the waste liquid on the valve core 20, the valve core 20 floats up to enable the upper end of the valve core 20 to abut against the lower end of the pilot sleeve 32, so as to plug the lower end of the pilot sleeve 32, and further enable the pilot sleeve 32 to be substantially isolated from the valve cavity 11, the floating process is called an initial floating process, the stroke of the initial floating process is not large, and the opening degree of the discharge port 14 below the valve core 20 is not large.
The upper end of the valve core 20 seals the lower end of the guide sleeve 32, so that the pressure in the valve cavity 11 is restored to atmospheric pressure, and under the action of the suction pump, the interior of the guide sleeve 32 is still in a negative pressure state, and under the negative pressure state, as shown in fig. 5, the valve core 20 floats upwards along with the guide sleeve 32, so that the spring 33 is compressed, and the upper end of the valve core 20 abuts against the lower end of the joint body 31, and the above process is called secondary floating. At this time, the discharge port 14 below the valve element 20 is fully opened, and the waste liquid opens the check valve 40 by gravity and is discharged from the discharge port 14.
After the waste liquid is discharged, the suction pump is stopped and then restarted (this process is the same as the operation of the suction pump in the related art), so that the valve element 20 falls back under the gravity and the restoring force of the spring 33 to close the discharge port 14 again and open the downstream suction port 13, and the suction pump pumps the valve chamber 11 and the upstream suction pipe 100 to a negative pressure state again to perform the suction operation again.
Based on the above, the utility model discloses a set up the guide and connect 30 and cooperate with case 20, and then make case 20 obtain twice come-up process, and then make discharge port 14 open completely through the secondary come-up that makes case 20, and then the waste liquid in the messenger valve pocket 11 in time discharges.
Further, by adjusting the initial compression amount of the spring 33 by screwing the pressure sleeve 34, the elastic force of the spring 33 against the valve body 20 can be adjusted, and the drop-back speed of the valve body 20 can be adjusted.
In some preferred embodiments, as shown in fig. 1 and 2, a plurality of axially penetrating guide grooves 21 are formed in the outer circumferential surface of the valve core 20, and the guide grooves 21 are circumferentially arranged. On one hand, the guiding function of the diversion trench 21 can improve the smoothness of the downstream of the waste liquid; on the other hand, the diversion trench 21 can increase the volume of the valve cavity 11 for waste liquid, so that the capacity of the valve cavity 11 for containing waste liquid can be increased without increasing the clearance between the valve core 20 and the valve cavity 11.
In some preferred embodiments, the outer peripheral surface of the valve core 20 is formed with an annular groove 22 at a position corresponding to the upstream suction port 12. The waste liquid-carrying gas flow first enters the space enclosed by the annular groove 22 and the valve chamber 11, and then the gas flow flows upwards through the diversion trench 21, while the waste liquid flows downwards along the diversion trench 21. The annular groove 22 enables the air flow carrying the waste liquid to smoothly enter the valve cavity 11, and enables the air flow and the waste liquid to flow in various areas around the valve core 20, thereby improving the smoothness of the air flow and the waste liquid flow.
In some preferred embodiments, a filter cartridge 50 is installed in the upstream suction port 12, and a filter hole is opened on the wall of the filter cartridge 50. Specifically, the filter cartridge 50 is mounted on the bushing 51, the sleeve stopper 52 is mounted on the inner hole of the upstream suction port 12 to stop the bushing 51, and when the filter cartridge 50 needs to be removed, the sleeve stopper 52 is only required to be removed. The filter cartridge 50 serves to prevent impurities inadvertently sucked into the upstream suction tube 100 from entering the valve chamber 11.
The utility model provides a waste liquid blow-down valve's key beneficial effect is:
this waste liquid discharge valve has increased case 20's come-up stroke through making case 20 obtain the secondary come-up process, and then makes discharge port 14 discharge the waste liquid under the condition of opening completely, and then makes the waste liquid can in time discharge, has improved suction system's work efficiency.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (9)
1. A waste liquid discharge valve, comprising:
a valve body in which a vertically extending cylindrical valve cavity is formed, the valve body having a side portion, an upper end and a lower end, the valve cavity being formed with an upstream suction port to which an upstream suction pipe is connected, a downstream suction port to which a suction pump is connected via a downstream suction pipe, and a discharge port at which a check valve is provided, respectively;
the valve core is arranged in the valve cavity; wherein:
downstream suction opening department is provided with the pilot joint, the pilot joint includes:
a joint body detachably connected to the downstream suction port, a lower end of the joint body extending into the valve chamber;
a guide sleeve disposed in the joint body;
and the spring is arranged in the joint body and used for pushing the guide sleeve downwards so that the guide sleeve protrudes out of the lower end of the joint body and the lower end of the guide sleeve is firstly blocked after the valve core floats upwards.
2. The waste liquid discharge valve according to claim 1, wherein a limiting step is formed in an inner hole of the joint body, an annular table is formed in a middle portion of an outer periphery of the pilot sleeve, the limiting step is used for stopping the annular table, and the spring is sleeved on the pilot sleeve above the annular table.
3. The waste liquid discharge valve as claimed in claim 2, wherein the pilot joint further includes a pressing sleeve, a lower end of which is protruded into the joint body from an upper end of the joint body for pressing against the spring, and an upper end of which is formed with an outer ring to form a screw connection with an outside of the joint body.
4. The waste liquid discharge valve as claimed in claim 1, wherein the valve core has a plurality of axially penetrating guide grooves formed in an outer circumferential surface thereof, and the plurality of guide grooves are circumferentially arranged.
5. The waste liquid discharge valve as claimed in claim 4, wherein an annular groove is formed in an outer peripheral surface of the valve body at a position corresponding to the upstream suction port.
6. The waste drain valve as claimed in claim 1, further comprising a bottom cap screwed to a bottom of the valve body, wherein a middle portion of the bottom cap forms the drain port.
7. The waste liquid discharge valve as claimed in claim 1, wherein a filter cartridge is installed in the upstream suction port, and a filter hole is opened in a wall of the filter cartridge.
8. The waste outlet valve as claimed in claim 7, wherein the filter cartridge is mounted on a bushing, and a collar is mounted on an inner bore of the upstream suction port to stop the bushing.
9. A medical aspiration system, comprising: a suction pump, an upstream suction tube, a downstream suction tube, a reservoir bottle, further comprising a waste discharge valve as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241431.7U CN217430546U (en) | 2022-01-28 | 2022-01-28 | Waste liquid discharge valve and medical suction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241431.7U CN217430546U (en) | 2022-01-28 | 2022-01-28 | Waste liquid discharge valve and medical suction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217430546U true CN217430546U (en) | 2022-09-16 |
Family
ID=83213864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220241431.7U Active CN217430546U (en) | 2022-01-28 | 2022-01-28 | Waste liquid discharge valve and medical suction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217430546U (en) |
-
2022
- 2022-01-28 CN CN202220241431.7U patent/CN217430546U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1147301A (en) | Vapor recovery jet pump | |
| US6110141A (en) | Breast pump and overflow protection for an apparatus for sucking a body fluid off | |
| CN217430546U (en) | Waste liquid discharge valve and medical suction system | |
| CN216922203U (en) | Negative pressure adjustable full-automatic water drainage device | |
| US4484908A (en) | Method for relieving excess negativity in a drainage device | |
| CN106641367A (en) | Float valve for oil-water separation | |
| US4405309A (en) | Surgical drainage device with metered air pump | |
| CN204852476U (en) | Breathing vlave | |
| CN217187153U (en) | Medical negative pressure suction device | |
| CN111188390A (en) | Overflow device for improving overflow capacity and accelerating discharge speed of drain valve | |
| CN211474439U (en) | Liquid level automatic balance control steam-water separator | |
| CN218093466U (en) | Two-stage self-priming pump | |
| CN220956012U (en) | Liquid pumping device with backflow prevention function | |
| CN217270557U (en) | Fuel pipeline exhaust apparatus and engine | |
| CN220351594U (en) | Safety oil-way jack | |
| KR102501652B1 (en) | Preventing structure from flowing outer liquid of pump container | |
| CN215246736U (en) | Push type imbibition ware and imbibition container | |
| CN218376796U (en) | Oil mist exhaust device for vacuum pump | |
| CN218202190U (en) | Intelligent water tank with overvoltage protection and secondary pollution prevention functions | |
| CN217325684U (en) | Automatic dirt collecting tank of medical vacuum system | |
| CN211774277U (en) | Overflow device for improving overflow capacity and accelerating discharge speed of drain valve | |
| CN214247489U (en) | Radiator cover of water tank | |
| CN213100104U (en) | Integrated humidifying and atomizing nasal oxygen tube | |
| CN218474558U (en) | Floating member, water tank and cleaning robot | |
| CN218922844U (en) | Water supply device and dental equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |