CN211675810U - Flow regulating valve assembly - Google Patents
Flow regulating valve assembly Download PDFInfo
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- CN211675810U CN211675810U CN201921867161.5U CN201921867161U CN211675810U CN 211675810 U CN211675810 U CN 211675810U CN 201921867161 U CN201921867161 U CN 201921867161U CN 211675810 U CN211675810 U CN 211675810U
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Abstract
The utility model relates to the technical field of medical equipment, in particular to a flow regulating valve component, which comprises a regulating nut, an abrasion reducing disc, two upper pressing sheets, a universal plug seal, a valve body, a valve core, two limiting sheets, a spring, a blocking sheet, a first sealing ring and a second sealing ring; the valve core is inserted into the valve body corresponding to the taper position; the flooding plug seal penetrates through the front end of the valve core and then is pressed into the valve body, and the sealing material is supported by the tension of the spring for sealing; the anesthetic gas and the fresh gas are effectively separated by the sealing ring, and the problem that the anesthetic gas and the fresh gas of a plane valve are mutually communicated and leaked on the same valve plane is solved; the flow regulating valve can improve the regulating precision of the flow regulating valve, thereby ensuring the output precision of the concentration of the anesthetic gas.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to flow control valve subassembly.
Background
The anesthetic evaporation devices such as liquid anesthetic halothane, isoflurane, sevoflurane, enflurane and desflurane which are widely applied to clinic at present all need concentration adjusting devices, and the number corresponding to a dial disc is the theoretical output concentration. However, the existing anesthetic evaporation device using a planar valve has the disadvantages that multiple paths of different gases often pass through the planar valve at the same time, and the gases in the paths cannot be completely separated and sealed, so that the final output concentration of the product has large deviation due to mutual gas communication. In addition, the processing of the plane valve, the manual grinding process of the contact surface of the valve seat and the valve plate have high requirements, the technical requirements of workers are high, the fast mass production cannot be adapted, and a large amount of pollutants generated in the grinding process cannot be recycled to pollute the environment.
Disclosure of Invention
An object of the utility model is to provide a flow control valve subassembly to prior art's defect and not enough, thereby it can improve the output precision that the regulation precision of flow control valve guaranteed anesthetic gas concentration.
The utility model relates to a flow regulating valve component, which comprises a regulating nut, a friction reducing disc, two upper pressing sheets, a universal plug seal, a valve body, a valve core, two limiting sheets, a spring, a blocking sheet, a first sealing ring and a second sealing ring;
the valve core is inserted into the valve body corresponding to the taper position; the flooding plug seal penetrates through the front end of the valve core and then is pressed into the valve body, and the sealing material is supported by the tension of the spring for sealing; the valve body comprises an upper cylindrical boss, and the bottom surface of the upper cylindrical boss is inwards provided with a lower cylindrical boss gradually; a first groove is formed in the upper cylindrical boss, and a second groove is formed in the lower cylindrical boss; the second sealing ring is mounted at the first groove of the valve body; the first sealing ring is mounted to the second groove of the valve body; the two upper pressing sheets are fixed on the valve body through four screws I; the wear reducing plate is arranged between the adjusting nut and the valve body contact plane; the adjusting nut thread is meshed with the front end thread of the valve core; the two limiting pieces are fixed on the threaded holes at the bottom of the valve through four second screws; and a third screw passes through the spring and the central hole of the baffle plate and then is fixed in the threaded hole at the bottom of the valve core.
Furthermore, the central axes of the upper cylindrical boss and the lower cylindrical boss of the valve body are collinear.
Furthermore, a taper surface is formed between the upper cylindrical boss and the lower cylindrical boss of the valve body, and a plurality of air holes with tapers are uniformly arranged on the taper surface.
Furthermore, the valve core comprises a core rod with an excircle consistent with the taper of the inner hole of the valve body, and the taper length of the core rod is smaller than that of the inner taper of the valve body; the core rod consists of a core rod front end part, a core rod middle end part and a core rod rear end part; the front end part of the core rod is cylindrical, the outer surface of the front end part of the core rod is provided with threads, a third annular groove is formed between the front end part of the core rod and the middle section part of the core rod, the middle section part of the core rod is cylindrical, a fourth annular groove is formed between the middle section part of the core rod and the rear section part of the core rod, the rear section part of the core rod is frustum-shaped, and a threaded hole is formed in the center of the bottom surface of the rear section part of.
Furthermore, the shape of the baffle is rectangular, a center hole is arranged below the center of the surface of the baffle, and auxiliary mounting positioning holes are correspondingly arranged on two sides of the surface of the baffle.
After the structure is adopted, the utility model discloses beneficial effect does: the flow regulating valve component of the utility model effectively separates anesthetic gas from fresh gas by the sealing ring, and eliminates the problem that the anesthetic gas and the fresh gas of a plane valve are communicated with each other and leaked on the same valve plane; the flow regulating valve can improve the regulating precision of the flow regulating valve, thereby ensuring the output precision of the concentration of the anesthetic gas.
[ description of the drawings ]
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:
FIG. 1 is a schematic sectional view of the present invention;
fig. 2 is a schematic diagram of the explosion structure of the present invention.
Description of reference numerals:
the anti-wear valve comprises an adjusting nut-1, an anti-wear sheet-2, a screw I-3, an upper pressing sheet-4, a universal plug seal-5, a valve body-6, a valve core-7, a gas inlet-8, a limiting sheet-9, a screw II-10, a spring-11, a screw III-12, a valve sleeve-13, a baffle sheet-14, a sealing ring I-15, a sealing ring II-16, a groove I-17, a gas hole-18, a groove II-19, a threaded hole-20 and a thread-21.
[ detailed description ] embodiments
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and the description are only for the purpose of explanation, but not for the purpose of limitation.
As shown in fig. 1-2, the flow regulating valve assembly according to this embodiment includes a regulating nut 1, an anti-wear plate 2, a first screw 3, two upper pressing plates 4, a universal plug seal 5, a valve body 6, a valve core 7, two limiting plates 9, a second screw 10, a spring 11, a third screw 12, a blocking plate 14, a first seal ring 15, and a second seal ring 16; the first groove 17, the air hole 18, the second groove 19, the threaded hole 20 and the threads 21;
the valve core 7 is inserted into the valve body 6 corresponding to the taper position; the flooding plug seal 5 penetrates through the front end of the valve core 7 and then is pressed into the valve body 6, and the sealing material is supported and sealed by the tension of a spring;
the valve body 6 comprises an upper cylindrical boss, and a lower cylindrical boss is arranged on the bottom surface of the upper cylindrical boss inwards and gradually contracted; a first groove 17 is formed in the upper cylindrical boss, and a second groove 19 is formed in the lower cylindrical boss; the second sealing ring 16 is arranged at a first groove 17 of the valve body 6; the first sealing ring 15 is arranged at a second groove 19 of the valve body 6;
the two upper pressing sheets 4 are fixed on the valve body 6 through four screws I3 to prevent the flooding plug seal 5 from coming out of the hole; the upper pressing sheet 4 is provided with two square holes, and the assembly position can be adjusted;
the friction reducing piece 2 plays a role in reducing friction between the contact planes of the adjusting nut 1 and the valve body 6; the thread of the adjusting nut 1 is meshed with the thread 21 at the front end of the valve core 7;
after the angle position of the valve core 7 is properly adjusted, the two limiting sheets 9 are fixed on a threaded hole 20 at the bottom of the valve body 6 through four screws 10; before the second screw 10 is fixed, the position of the limiting sheet 9 is adjusted to be in close contact with the special-shaped bulge at the lower part of the valve core, so that the valve core 7 can be limited from angular deviation;
and a third screw 12 passes through the spring 11 and the central hole of the baffle plate 14 and then is fixed in a threaded hole 20 at the bottom of the valve core 7.
Further, the central axes of the upper cylindrical boss and the lower cylindrical boss of the valve body 6 are collinear.
Furthermore, a taper surface is formed between the upper cylindrical boss and the lower cylindrical boss of the valve body 6, and a plurality of air holes 18 with taper are uniformly arranged on the taper surface.
Further, the valve core 7 comprises a core rod with an excircle consistent with the taper of the inner hole of the valve body, and the taper length of the core rod is smaller than that of the inner taper of the valve body; the core rod consists of a core rod front end part, a core rod middle end part and a core rod rear end part; the front end part of the core rod is cylindrical, the outer surface of the front end part of the core rod is provided with threads 21, a third annular groove is formed between the front end part of the core rod and the middle section part of the core rod, the middle section part of the core rod is cylindrical, a fourth annular groove is formed between the middle section part of the core rod and the rear section part of the core rod, the rear section part of the core rod is frustum-shaped, and the center of the bottom surface of the rear section part of the core rod is provided with a.
Furthermore, the shape of the blocking piece 14 is rectangular, a central hole is arranged below the center of the surface of the blocking piece 14, and auxiliary positioning holes are correspondingly arranged on two sides of the surface of the blocking piece 14.
The working principle of the utility model is as follows:
in the design, the regulating valve assembly comprises a regulating nut 1, an anti-wear sheet 2, a screw I3, two upper pressing sheets 4, a flooding plug seal 5, a valve body 6, a valve core 7, two limiting sheets 9, a screw II 10, a spring 11, a screw III 12, a blocking sheet 14, a sealing ring I15, a sealing ring II 16, a groove I17, an air hole 18, a groove II 19, a threaded hole 20 and a thread 21;
wherein: the valve comprises an upper cylindrical boss, a lower cylindrical boss is arranged on the bottom surface of the upper cylindrical boss in a gradually inward contracting manner, the central axes of the upper cylindrical boss and the lower cylindrical boss of the valve body 6 are collinear, a taper surface is formed between the upper cylindrical boss and the lower cylindrical boss of the valve body 6, and a plurality of air holes 18 with tapers are uniformly formed in the taper surface. A first groove 17 is formed in the upper cylindrical boss, and a second groove 19 is formed in the lower cylindrical boss; the second sealing ring 16 is arranged at a first groove 17 of the valve body 6; the first sealing ring 15 is mounted to the second groove 19 of the valve body 6.
Wherein: the valve core 7 comprises a core rod with an excircle consistent with the taper of the inner hole of the valve body, and the taper length of the core rod is smaller than that of the inner taper of the valve body; the core rod consists of a core rod front end part, a core rod middle end part and a core rod rear end part; the front end part of the core rod is cylindrical, the outer surface of the front end part of the core rod is provided with threads 21, a third annular groove is formed between the front end part of the core rod and the middle section part of the core rod, the middle section part of the core rod is cylindrical, a fourth annular groove is formed between the middle section part of the core rod and the rear section part of the core rod, the rear section part of the core rod is frustum-shaped, and the center of the bottom surface of the rear section part of the core rod is provided with a.
When the design is installed, the valve core 7 is inserted into the valve body 6 corresponding to the taper position; the flooding plug seal 5 penetrates through the front end of the valve core 7 and then is pressed into the valve body 6, and the sealing material is supported and sealed by the tension of a spring; the two upper pressing sheets 4 are fixed on the valve body 6 through four screws I3 to prevent the flooding plug seal 5 from coming out of the hole; the upper pressing sheet 4 is provided with two square holes, and the assembly position can be adjusted; the wear reducing plate 2 is installed between the contact plane of the adjusting nut 1 and the valve body 6 and plays a role of reducing friction.
Then the adjusting nut 1 is meshed with the thread 21 at the front end of the valve core 7 through threads to form threaded connection; after the angle position of the valve core 7 is properly adjusted, the two limiting sheets 9 are fixed on a threaded hole 20 at the bottom of the valve body 6 through four screws 10; before the second screw 10 is fixed, the position of the limiting sheet 9 is adjusted to be in close contact with the special-shaped bulge (two sides of the bottom surface of the rear section part of the frustum-shaped core rod) at the lower part of the valve core 7, so that the valve core 7 can be limited from angular deviation;
then, the third screw 12 passes through the spring 11 and the central hole of the baffle 14 and then is fixed in the threaded hole 20 at the bottom of the valve core 7; the second seal ring 16 is mounted to the first groove 17 of the valve body 6, and the first seal ring 15 is mounted to the second groove 19 of the valve body 6.
In the design, the limiting sheet 9 prevents the valve core from angular deviation, the spring 11 is sleeved on the third screw 12, the downward pulling force of the spring 11 can eliminate the thread fit clearance between the adjusting nut 1 and the valve core 7, so that the clearance between the conical surface of the valve core 7 and the conical surface of the valve body 6 is in a linear relation with the up-down movement of the valve core 7, the height change can be realized by the rotation of the adjusting nut 1, therefore, the clearance change of the conical surface in the adjusting valve component is in a linear relation with the angular change of the adjusting nut, the change can be realized by changing the thread pitch change of the adjusting nut 1 and the valve core 7 according to the requirement of a product, and the change can also be realized by adjusting the conical degree of the valve core.
In the design, after the valve body 6 and the valve sleeve 13 are assembled, two air chambers are separated between the first sealing ring 15 and the second sealing ring 16. Wherein: the first air chamber is a separation space between the first sealing ring 15 and the second sealing ring 16; the second air chamber is a sealed space at the lower part of the second sealing ring 15; one side of the valve sleeve 13 is provided with a gas inlet 8, and the gas inlet 8 is connected with a gas hole 18 of the valve body 6 through a gas channel. When the device is used, anesthetic gas reaches the first gas chamber through the gas inlet 8, flows to the second gas chamber through a gap between the valve core 7 and the valve body 6, and is mixed with fresh gas in the second gas chamber. When the valve core 7 is closely contacted with the conical surface of the valve body 6, the valve is closed, and the flow of the passing gas is zero; when the adjusting nut 1 rotates anticlockwise, the position of the valve core 7 descends along with the elastic force of the spring, a gap is generated between the valve core 7 and the conical surface of the valve body (6), and anesthetic gas flows through the gap; if the pressure at the gas inlet 8 is constant, the flow rate increases along with the expansion of the gap, and the flow rate decreases along with the reduction of the gap; if the gap is fixed, the flow rate of the gas flowing through increases as the pressure at the gas inlet 8 increases, and the flow rate of the gas flowing through decreases as the pressure at the gas inlet 8 decreases.
The advantages of this design are as follows:
(1) this project organization can effectively separate anesthetic gas and fresh gas by the sealing washer, eliminates plane valve anesthetic gas and fresh gas and with the problem of revealing of cross gas mutually on a valve plane, improves the output accuracy of anesthetic gas concentration.
(2) This project organization has the advantage in the aspect of the volume production, relies on equipment such as numerical control lathe single processing or can produce the certified products through secondary operation, eliminates the requirement that the plane valve need carry out the high accuracy to the valve plane after the finish machining for guaranteeing the gas tightness, has both reduced and has ground the manufacturing procedure, still eliminates simultaneously because of the processing of the a large amount of abandonment grinding abrasive material that grinding technology produced and a large amount of waste water that produce when wasing retrieves.
(3) This project organization calculates through current gaseous formula, can obtain following result: the cone valve of the design has obviously better linearity than a plane valve. The calculation process can be easily implemented by those skilled in the art, and the design is not described in detail.
The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.
Claims (5)
1. A flow regulating valve assembly characterized by: the device comprises an adjusting nut, a wear reducing piece, two upper pressing pieces, a universal plug seal, a valve body, a valve core, two limiting pieces, a spring, a blocking piece, a first sealing ring and a second sealing ring; the valve core is inserted into the valve body corresponding to the taper position; the flooding plug seal penetrates through the front end of the valve core and then is pressed into the valve body, and the sealing material is supported by the tension of the spring for sealing; the valve body comprises an upper cylindrical boss, and the bottom surface of the upper cylindrical boss is inwards provided with a lower cylindrical boss gradually; a first groove is formed in the upper cylindrical boss, and a second groove is formed in the lower cylindrical boss; the second sealing ring is mounted at the first groove of the valve body; the first sealing ring is mounted to the second groove of the valve body; the two upper pressing sheets are fixed on the valve body through four screws I; the wear reducing plate is arranged between the adjusting nut and the valve body contact plane; the adjusting nut thread is meshed with the front end thread of the valve core; the two limiting pieces are fixed on the threaded holes at the bottom of the valve through four second screws; and a third screw passes through the spring and the central hole of the baffle plate and then is fixed in the threaded hole at the bottom of the valve core.
2. A flow regulating valve assembly as claimed in claim 1, wherein: the central axes of the upper cylindrical boss and the lower cylindrical boss of the valve body are in the same straight line.
3. A flow regulating valve assembly as claimed in claim 1, wherein: a taper surface is formed between the upper cylindrical boss and the lower cylindrical boss of the valve body, and a plurality of air holes with tapers are uniformly formed in the taper surface.
4. A flow regulating valve assembly as claimed in claim 1, wherein: the valve core comprises a core rod with an excircle consistent with the taper of the inner hole of the valve body, and the taper length of the core rod is smaller than the length of an inner taper of the valve body; the core rod consists of a core rod front end part, a core rod middle end part and a core rod rear end part; the front end part of the core rod is cylindrical, the outer surface of the front end part of the core rod is provided with threads, a third annular groove is formed between the front end part of the core rod and the middle section part of the core rod, the middle section part of the core rod is cylindrical, a fourth annular groove is formed between the middle section part of the core rod and the rear section part of the core rod, the rear section part of the core rod is frustum-shaped, and a threaded hole is formed in the center of the bottom surface of the rear section part of.
5. A flow regulating valve assembly as claimed in claim 1, wherein: the baffle is rectangular, a central hole is formed below the center of the surface of the baffle, and auxiliary mounting positioning holes are correspondingly formed in two sides of the surface of the baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867161.5U CN211675810U (en) | 2019-11-01 | 2019-11-01 | Flow regulating valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867161.5U CN211675810U (en) | 2019-11-01 | 2019-11-01 | Flow regulating valve assembly |
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| Publication Number | Publication Date |
|---|---|
| CN211675810U true CN211675810U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921867161.5U Active CN211675810U (en) | 2019-11-01 | 2019-11-01 | Flow regulating valve assembly |
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| CN (1) | CN211675810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110743073A (en) * | 2019-11-01 | 2020-02-04 | 北京毅安峰技术有限公司 | Flow regulating valve assembly |
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2019
- 2019-11-01 CN CN201921867161.5U patent/CN211675810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110743073A (en) * | 2019-11-01 | 2020-02-04 | 北京毅安峰技术有限公司 | Flow regulating valve assembly |
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