CN212439703U - Flow control valve for controlling liquid flow and flow velocity - Google Patents
Flow control valve for controlling liquid flow and flow velocity Download PDFInfo
- Publication number
- CN212439703U CN212439703U CN202020476621.8U CN202020476621U CN212439703U CN 212439703 U CN212439703 U CN 212439703U CN 202020476621 U CN202020476621 U CN 202020476621U CN 212439703 U CN212439703 U CN 212439703U
- Authority
- CN
- China
- Prior art keywords
- valve
- flow
- flow control
- control valve
- liquid
- 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
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model belongs to the technical field of medical appliances, and provides a flow control valve for controlling the flow and the flow velocity of liquid, which comprises a valve sleeve and a valve core, wherein the valve sleeve comprises a first connecting part and a second connecting part and is of a hollow structure; the valve core comprises a flap type baffle, a circular baffle, a connecting rod and an elastic valve ring, the middle part of the flap type baffle and the middle part of the circular baffle are respectively connected with the two ends of the connecting rod, the diameter of the circular baffle is smaller than the inner diameter of the valve sleeve, the elastic valve ring is sleeved on the periphery of the connecting rod, the flap type baffle is connected with the inner surface of the valve sleeve through a fan-shaped protruding structure on the periphery of the flap type baffle, and the flow control valve is integrally formed except the elastic valve ring. When the flow control valve is used for throat anesthesia, the flow control valve can control the flow and the flow velocity of anesthetic liquid medicine, so that the atomization effect is achieved, the liquid medicine is sprayed more uniformly and absorbed more comprehensively, and secondary pollution caused by medicine backflow is avoided; when the infusion device is used for patients with specific requirements on infusion time and infusion amount, the infusion device can effectively solve the problem of timed and quantitative infusion, and can also effectively avoid the blood return phenomenon caused by the completion of infusion of liquid medicine.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a flow control valve of control liquid flow and velocity of flow.
Background
The laryngopharyngeal anesthesia method is widely applied to the operation and endoscopy of the laryngopharynx, and is mainly used for mucosa surface anesthesia so as to ensure that a patient with sensitive laryngopharynx reflexes can complete examination by cooperating with a doctor. In clinical practice, when an anesthesiologist performs laryngoscopy, endotracheal intubation and throat surgery on a patient, the throat of the patient needs to be anesthetized to relieve the pain.
The traditional throat anesthesia device comprises an injector and an injection catheter, anesthetic liquid medicine is sprayed to the throat part through external force injection, the liquid medicine spraying of the throat anesthesia device is uneven, and the liquid medicine spraying speed is not easy to control.
The traditional infusion apparatus generally comprises an infusion needle, an infusion tube, a flow regulator, a dropping funnel and the like which are connected through a conduit, the infusion method is that a bottle or an infusion bag filled with liquid is hung at a high position, the liquid flows into a vein through an infusion leather tube under the action of gravity, the flow needs to be manually regulated through the flow regulator, and the regulation degree is that the dropping speed (dropping/dividing) in the dropping funnel is seen. When a traditional infusion apparatus is used for infusion, the change of the amount of liquid medicine in the medicine bottle must be noticed all the time, and if the liquid medicine is not dropped empty in time, air can enter a blood vessel from an infusion tube or blood flows back from the infusion tube. Air ingress into blood vessels can have adverse consequences, leading to sudden death in the worst case.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a new flow control valve of control liquid flow and velocity of flow, its simple structure, convenient operation can overcome above-mentioned prior art not enough.
In order to achieve the above object, the present invention provides a flow control valve for controlling liquid flow and flow rate, including a valve housing and a valve core, wherein the valve housing includes a first connecting portion and a second connecting portion, and the first connecting portion and the second connecting portion are both hollow structures; the valve core comprises a flap type baffle, a circular baffle, a connecting rod and an elastic valve ring, the middle part of the flap type baffle and the middle part of the circular baffle are respectively connected with the two ends of the connecting rod, the diameter of the circular baffle is smaller than the inner diameter of the valve sleeve, the elastic valve ring is sleeved on the periphery of the connecting rod, the flap type baffle is connected with the inner surface of the valve sleeve through a fan-shaped protruding structure on the periphery of the flap type baffle, and the flow control valve is integrally formed except the elastic valve ring.
The other structures of the flow control valve except the elastic valve ring can be integrally formed by injection molding of elastic materials or integrally cast by rigid materials; depending on the application scenario.
The elastic valve ring has elasticity, so that a corresponding tool can penetrate through the circular baffle plate through the through hole in the middle of the elastic valve ring so as to be sleeved on the periphery of the connecting rod.
When the flap-type baffle is arranged on one side close to the first connecting part port, fluid flows in from the first connecting part port and flows out from the second connecting part port; when the flap-type baffle is disposed on the side close to the second connection port, the fluid flows in from the second connection port and flows out from the first connection port. The specific setting direction of the flap-type baffle is determined according to the application scene.
As a further improvement of the present invention, the fan-shaped protrusion structure is connected to the inner surface of the first connection portion or the inner surface of the second connection portion. The fan-shaped bulge structure can be arranged at any position of the inner surface of the valve sleeve according to requirements, preferably on the inner surface of the joint of the first connecting part and the second connecting part, so that the strength and the service life of the valve core can be improved.
As a further improvement, the fan-shaped protrusion structure is three or more than three, so that the shunting function can be realized.
As a further improvement, the elastic valve ring is made of a medical silica gel material which can deform, has excellent performance of resisting various chemicals, has no adverse reaction to a human body, and has better elasticity to further control the flow and the flow velocity of fluid, so that the fluid is more uniformly distributed.
As a further improvement, the elastic valve ring has an outer diameter smaller than the inner diameter of the valve sleeve, which can be used in the field of medical apparatus and instruments, such as a throat anesthesia device, to make the fluid distribution more uniform and reduce the secondary pollution caused by the backflow of the liquid medicine.
As a further improvement of the utility model, the outer diameter of the elastic valve ring is more than or equal to the inner diameter of the valve sleeve, and the valve sleeve can be used in the field of medical appliances, such as throat anesthesia devices, so that the fluid distribution is more uniform, and the secondary pollution caused by the backflow of the liquid medicine is prevented; the device can also be used for infusion devices, on one hand, adverse reactions caused by air entering blood vessels can be prevented, and on the other hand, secondary pollution caused by medicine or blood backflow can be prevented.
As a further improvement of the utility model, the thickness of the elastic valve ring is less than or equal to the length of the connecting rod; preferably, the thickness of the elastic valve ring is less than the length of the connecting rod, and the elastic valve ring can move along the connecting rod to play a role in buffering and reduce the stress of fluid on the elastic valve ring. The thickness of the elastic valve ring is preferably 0.01-10 mm, the thickness can be adjusted according to needs or the size of the flow control valve, the liquid flow and the flow speed are controlled through the thickness of the elastic valve ring, and under the same pressure, the smaller the thickness of the elastic valve ring is, the larger the deformation amount of the elastic valve ring is, and the larger the flow speed is; the larger the thickness of the elastic valve ring is, the smaller the deformation amount of the elastic valve ring is, and the smaller the flow speed is.
As a further improvement of the present invention, the first connecting portion and the second connecting portion have the same or different outer diameters, and can be adjusted as required according to the connection condition with other injection devices, so as to match.
As a further improvement of the present invention, the inner diameters of the first connecting portion and the second connecting portion are the same or different, and can be adjusted according to the requirements, such as the connection condition with other injection devices, to match.
As a further improvement, the internal surface or the external surface of first connecting portion and second connecting portion can set up the screw thread as required, can increase the joint strength with other equipment, prevents to drop.
Compared with the prior art, the utility model provides a pair of flow control valve of control liquid flow and velocity of flow has following technological effect: when the anesthetic is used for throat anesthesia, the flow and the flow velocity of anesthetic liquid medicine can be controlled, so that the atomization effect is achieved, the liquid medicine is sprayed more uniformly, the absorption is more comprehensive, the anesthesia effect is better, and the secondary pollution caused by medicine backflow is reduced or prevented; when the infusion set is used, on one hand, adverse reaction caused by air entering blood vessels can be prevented, on the other hand, secondary pollution caused by medicine or blood backflow can be prevented, and the blood return phenomenon caused by the fact that the liquid medicine is completely infused can be effectively avoided.
Drawings
Fig. 1 is a perspective view of a preferred embodiment of a flow control valve of the present invention.
Fig. 2 is a cross-sectional view (50% scale) of the flow control valve of fig. 1 taken along line a-a.
Fig. 3 is a cross-sectional view B-B of the fluidic valve of fig. 1 (approximately 75% scale, fluid inflow-end oriented view).
Fig. 4 is a cross-sectional view B-B of the fluidic valve of fig. 1 (approximately 75% scale, view in the direction of the fluid outflow end).
Fig. 5 is a B-B cross-sectional view (approximately 75% scale) of the flow control valve of fig. 1 without the elastomeric valve ring installed.
Fig. 6 is a perspective view of a valve cartridge with an elastomeric valve ring installed.
Fig. 7 is a perspective view of the valve element without the elastic valve ring installed (a view in the direction of the fluid inflow end).
Fig. 8 is a perspective view (a view in the direction of the fluid outflow end) of the valve element without the elastic valve ring mounted.
Fig. 9 is a perspective view of the resilient valve ring.
Fig. 10 is a front view of the cross-sectional view of fig. 2.
Fig. 11 is a left side view of the perspective view of fig. 1.
Fig. 12 is a right side view of the perspective view of fig. 1.
Figure 13 is a schematic view of an anesthetic injection apparatus.
Fig. 14 is a schematic view of an infusion device.
The respective symbols in the figure are as follows:
1. a flow control valve; 1.1, valve sleeve; 1.1.1, a first connection; 1.1.2, a second connecting part; 1.2, a valve core; 1.2.1, a flap-shaped baffle; 1.2.1.1, a fan-shaped convex structure; 1.2.2, a circular baffle; 1.2.3, connecting rod; 1.2.4, an elastic valve ring; 2. an injection device; 3. a drug conduit; 3.1, a marker; 4. an infusion needle; 5. an infusion bottle; 6. an infusion tube.
Detailed Description
The present invention will now be further described with reference to fig. 1 to 14 of the drawings, in which fig. 1 to 14 show a preferred embodiment of the present invention.
Fig. 1 is a perspective view of a preferred embodiment of a flow control valve of the present invention. Section A-A is shown in FIG. 2, which is now taken along section A-A in FIG. 1. The cross-section B-B of FIG. 1 is taken to obtain the cross-section B-B shown in FIG. 3 and FIG. 4. In order to make the utility model discloses a connection between flow control valve structure and each part is clearer, fig. 5 shows the B-B section view of the flow control valve that does not install the elasticity valve ring, fig. 6 shows the case stereogram that installs the elasticity valve ring, fig. 7 ~ 8 show the case stereogram that does not install the elasticity valve ring, fig. 9 shows the stereogram of the elasticity valve ring, fig. 10 ~ 12 show the plane view of each angle of flow control valve. In order to make the explanation of the use of the flow control valve of the present invention clearer, fig. 13 to 14 show the schematic diagrams of the use method of the flow control valve.
As shown in fig. 2 to 8, the flow control valve 1 of the present invention includes a valve housing 1.1 and a valve core 1.2, the valve housing 1.1 includes a first connecting portion 1.1.1 and a second connecting portion 1.1.2, the first connecting portion 1.1.1 and the second connecting portion 1.1.2 are both hollow structures, and the outer diameter of the first connecting portion 1.1.1 is smaller than the outer diameter of the second connecting portion 1.1.2, and the inner diameter of the first connecting portion 1.1.1 is equal to the inner diameter of the second connecting portion 1.1.2; the outer surface of the first connecting portion 1.1.1 and the inner surface of the second connecting portion 1.1.2 are provided with threads, so that the connecting strength with other equipment can be increased, and falling off is prevented. The valve core 1.2 comprises a flap type baffle 1.2.1, a circular baffle 1.2.2, a connecting rod 1.2.3 and an elastic valve ring 1.2.4, the middle parts of the flap type baffle 1.2.1 and the circular baffle 1.2.2 are respectively connected with the two ends of the connecting rod 1.2.3, the flap type baffle 1.2.1 is arranged at one side close to the port of the first connecting part 1.1.1, the diameter of the circular baffle 1.2.2 is smaller than the inner diameter of the valve sleeve 1.1, the elastic valve ring 1.2.4 is sleeved on the periphery of the connecting rod 1.2.3, the flap type baffle 1.2.1 is connected with the inner surface of the valve sleeve 1.1 through a fan-shaped convex structure 1.2.1.1.1 of the periphery of the flap type baffle, and the flow control valve 1 is integrally formed except the elastic valve ring 1.2.4. Fan-shaped protruding structure 1.2.1.1 has threely, sets up at second connecting portion 1.1.2 internal surfaces, and is close to first connecting portion 1.1.1 one end, and the radial thickness of second connecting portion 1.1.2 is greater than the radial thickness of first connecting portion 1.1.1, consequently can increase case 1.2's intensity and life. As shown in fig. 9, the elastic valve ring 1.2.4 is made of deformable medical silica gel material, has excellent resistance to various chemicals, has no adverse reaction to human body, has better elasticity, and can further control the flow rate and flow velocity of fluid, so that the fluid is more uniformly distributed. As shown in fig. 10 to 12, the outer diameter of the elastic valve ring 1.2.4 is equal to the inner diameter of the valve housing 1.1, the thickness of the elastic valve ring 1.2.4 is smaller than the length of the connecting rod 1.2.3, the thickness of the elastic valve ring 1.2.4 is 1mm, and the elastic valve ring 1.2.4 can move along the connecting rod 1.2.3.
Examples 1 and 2 below show the use of the flow control valve of the present invention in the field of medical devices, such as anesthesia injection devices and infusion devices, respectively.
Example 1:
according to the above structure, the flow control valve 1 for controlling the flow rate and flow velocity of the liquid is used for injecting lidocaine hydrochloride in the throat of an anesthetic injection device. As shown in fig. 13, the flow control valve 1 is arranged between the injection device 2 and the medication conduit 3, i.e. the first connection 1.1.1 of the valve housing in the flow control valve 1 is connected to the output of the injection device 2 and the second connection 1.1.2 of the valve housing in the flow control valve 1 is connected to the input of the medication conduit 3. When using injection apparatus 2 injection liquid medicine, with 3 convex surfaces of medicine pipe up, insert patient's throat slowly, it is near to reach patient's vocal cords to mark 3.1, can stop deeply, the liquid medicine flows into the case through flow control valve 1 by injection apparatus 2 in proper order under the effect of external force, flow to the elasticity valve ring after shunting through the lamella type baffle, the elasticity deformation takes place for the elasticity valve ring under the pressure of liquid medicine, thereby the liquid medicine flows into the medicine pipe at last and makes the liquid medicine distribute more evenly, the velocity of flow is faster, can split into the water droplet after high-speed rivers touch the barrier, thereby form the spraying. So that the lidocaine hydrochloride can be injected to the throat part in a mist form, thereby enhancing the anesthetic effect. The liquid medicine is not easy to flow back after the injection is finished, so that secondary pollution is caused.
Example 2:
according to the above configuration, the flow control valve 1 for controlling the flow rate and flow velocity of the liquid is used for the infusion device. As shown in fig. 14, the flow control valve 1 is disposed above the infusion needle 4, and when a patient is infused, a liquid medicine flows from the infusion bottle 5 into the flow control valve 1 through the infusion tube 6. The liquid medicine flows into the valve core from the first connecting part 1.1.1 of the valve sleeve in the flow control valve 1, flows to the elastic valve ring after being shunted by the flap-shaped baffle, and is elastically deformed under the pressure of the liquid medicine, and finally flows to the infusion needle to enter the human body. When liquid medicine ran out gradually, the power that liquid medicine gravity provided was not enough to make the elasticity valve ring take place to deform, and the elasticity valve ring resumes former shape this moment, has avoided the air admission blood vessel that liquid medicine ran out and leads to, can prevent the secondary pollution that medicine or blood refluence caused moreover.
The above is only the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiments, all belong to the technical scheme of the present invention under the thought all belong to the protection scope of the present invention. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (9)
1. A flow control valve for controlling the flow rate and the flow velocity of liquid comprises a valve sleeve and a valve core, and is characterized in that the valve sleeve comprises a first connecting part and a second connecting part, and the first connecting part and the second connecting part are both of hollow structures; the valve core comprises a flap type baffle, a circular baffle, a connecting rod and an elastic valve ring, the middle part of the flap type baffle and the middle part of the circular baffle are respectively connected with the two ends of the connecting rod, the diameter of the circular baffle is smaller than the inner diameter of the valve sleeve, the elastic valve ring is sleeved on the periphery of the connecting rod, the flap type baffle is connected with the inner surface of the valve sleeve through a fan-shaped protruding structure on the periphery of the flap type baffle, and the flow control valve is integrally formed except the elastic valve ring.
2. The flow control valve as recited in claim 1 wherein the scalloped structure is attached to the inner surface of the first connector portion or the inner surface of the second connector portion.
3. The flow control valve for controlling the flow and velocity of liquid of claim 1, wherein the number of scalloped structures is three or more.
4. The flow control valve for controlling the flow of liquid and velocity of flow of claim 1 wherein the resilient valve ring is a deformable medical grade silicone material.
5. The flow control valve for controlling the flow of liquid and velocity of flow of claim 1, wherein the outer diameter of the resilient valve ring is less than the inner diameter of the valve housing.
6. The flow control valve for controlling the flow of liquid and the flow rate of liquid as claimed in claim 1, wherein the outer diameter of the elastic valve collar is greater than or equal to the inner diameter of the valve housing.
7. The flow control valve for controlling the flow and velocity of liquids of claim 1 wherein said elastomeric valve ring has a thickness less than or equal to the length of said connecting rod.
8. The flow control valve for controlling the flow and velocity of liquid of claim 1, wherein the first and second connecting portions have the same or different outer diameters and the same or different inner diameters.
9. The flow control valve as claimed in claim 1, wherein the first and second connecting portions have threads or grooves or protrusions on their inner or outer surfaces as desired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020476621.8U CN212439703U (en) | 2020-04-03 | 2020-04-03 | Flow control valve for controlling liquid flow and flow velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020476621.8U CN212439703U (en) | 2020-04-03 | 2020-04-03 | Flow control valve for controlling liquid flow and flow velocity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212439703U true CN212439703U (en) | 2021-02-02 |
Family
ID=74471843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020476621.8U Active CN212439703U (en) | 2020-04-03 | 2020-04-03 | Flow control valve for controlling liquid flow and flow velocity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212439703U (en) |
-
2020
- 2020-04-03 CN CN202020476621.8U patent/CN212439703U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20160279032A1 (en) | Oral administration coupler | |
| US20130253448A1 (en) | Hypodermic Needle With Multiple Dispersement Openings | |
| CN212439703U (en) | Flow control valve for controlling liquid flow and flow velocity | |
| CN102580189A (en) | Disposable self-stopping infusion apparatus | |
| CN111282152A (en) | Flow control valve for controlling liquid flow and flow velocity | |
| CN209809178U (en) | Medical infusion pipeline | |
| CN108601517A (en) | For without using conduit by medicament through per urethram pouring into connector, method and the purposes of bladder | |
| CN206081231U (en) | Ware of dosing sprays in disposable mouldable throat | |
| EP0098688A1 (en) | Intratubular medication dispenser | |
| CN211798072U (en) | Atomizer and spray nozzle assembly | |
| CN209596311U (en) | Separation preventing infusion apparatus | |
| CN211751504U (en) | Miniature micro-dispensing-free infusion pump | |
| CN206026781U (en) | Double plug safety transfusion system | |
| CN209075718U (en) | A kind of department of anesthesia's injection device with quantitative function | |
| CN201179272Y (en) | One-way positive pressure valve | |
| CN205796208U (en) | The extension tube structure of micro pump | |
| CN221513250U (en) | Portable nasal cavity depths ware of dosing | |
| CN105327434B (en) | The disposable sprayer of plasticity | |
| CN210277883U (en) | Integrated dual-purpose infusion tube | |
| CN204582137U (en) | A kind of infusion set | |
| CN213048938U (en) | Anorectal administration device | |
| CN211301713U (en) | Gynaecology is with nursing medicine dripping device | |
| CN221845790U (en) | Perfusion assembly | |
| CN211093961U (en) | Painless bronchofiberscope anesthesia pipeline adjusting device | |
| CN217612245U (en) | Improvement type enema treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |