CN220600479U - Micro flow regulating valve - Google Patents
Micro flow regulating valve Download PDFInfo
- Publication number
- CN220600479U CN220600479U CN202322294059.3U CN202322294059U CN220600479U CN 220600479 U CN220600479 U CN 220600479U CN 202322294059 U CN202322294059 U CN 202322294059U CN 220600479 U CN220600479 U CN 220600479U
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- valve
- designed
- conical
- valve seat
- annular
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 210000004907 gland Anatomy 0.000 claims description 15
- 238000012856 packing Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 description 9
- 239000000945 filler Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model relates to a micro flow regulating valve, wherein a valve seat is designed into a hollow cylindrical body, an annular bulge is designed at the periphery of the upper end of the hollow cylindrical body, a first outer conical sealing surface is designed at the lower end of the annular bulge, a first inner conical sealing surface is designed at the upper end of a round hole, the first outer conical sealing surface of the valve seat is in sealing fit with the first inner conical sealing surface of the round hole, and the taper difference between the first outer conical sealing surface and the first inner conical sealing surface is 5 degrees; the valve core is designed into a cylinder, the lower end of the cylinder is designed with an outer annular conical surface, and a conical head is also designed below the outer annular conical surface; the outer annular conical surface of the valve core is in sealing fit with the inner annular conical surface of the valve seat, and the taper difference between the outer annular conical surface and the inner annular conical surface is 5 degrees. The valve core and the valve seat are sealed by adopting a taper line with an angle difference of 5 degrees, so that the valve core and the valve seat are good in sealing reliability, small in leakage quantity and capable of adjusting the minimum flow Cv0.001.
Description
Technical Field
The utility model relates to the field of regulating valves, in particular to a micro flow regulating valve.
Background
The following problems exist in the field of current micro flow regulating valves:
1, the adjustable minimum flow is bigger (the small flow adjustment requirement of a user cannot be met);
2, the leakage amount is large;
3, the valve is inconvenient to fix on the pipeline;
4. the packing and the valve rod are easy to wear.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a micro flow regulating valve which is ingenious in design and reasonable and compact in structure.
The technical scheme of the utility model is as follows:
the micro flow regulating valve comprises a valve cover, a valve body, a valve seat, a valve core and a valve rod, wherein the valve seat is arranged in the middle of the valve body, the valve core is designed on the valve seat, the valve core is in sealing fit with the valve seat, the valve rod is connected with the upper end of the valve core, the valve cover is arranged at the upper end of the valve body, the upper end of the valve rod penetrates through the valve cover, a sealing mechanism is arranged between the valve rod and the valve cover, the valve body comprises an inlet runner and an outlet runner, the lower end of the interior of the valve body is designed with the inlet runner, the upper end of the interior of the valve body is designed with the outlet runner, the inlet runner is communicated with the outlet runner through a round hole, the interior of the round hole is designed with an internal thread, the valve seat is designed into a hollow cylindrical body, the upper end of the hollow cylindrical body is designed with an annular bulge, the lower end of the annular bulge is designed into a first external conical sealing surface, the outer side of the lower end of the hollow cylindrical body is designed with an external thread, the valve seat is rotatably arranged in the internal thread of the round hole through the external thread, the first external conical sealing surface of the valve seat is in sealing fit with the first internal conical sealing surface of the round hole, and the first external conical sealing surface of the round hole is 5 degrees different from the first internal conical sealing surface; the valve core is designed into a cylinder, the lower end of the cylinder is designed with an outer annular conical surface, and a conical head is also designed below the outer annular conical surface; an inner annular conical surface is designed at the upper end of a central hole of a hollow cylindrical body of the valve seat; the conical head of the valve core extends into the central hole of the valve seat, the outer annular conical surface of the valve core is in sealing fit with the inner annular conical surface of the valve seat, and the taper difference between the outer annular conical surface and the inner annular conical surface is 5 degrees.
The valve is characterized in that an internal thread is arranged in the upper end of the valve body, an external thread is arranged at the lower end of the valve cover, the valve cover is rotatably arranged in the internal thread of the valve body through the external thread, and a sealing gasket is arranged between the valve cover and the valve body.
The sealing mechanism comprises a gland, a filler and a protective ring, wherein an annular groove is arranged in the middle of the upper end of the valve cover, a valve rod penetrates through the valve cover, the gland, the filler and the protective ring are sleeved on the valve rod from top to bottom, the protective ring is arranged at the bottom in the annular groove, the filler is pressed on the protective ring and is also positioned in the annular groove, an internal thread is arranged in the upper end of the annular groove, an external thread is arranged at the lower end of the outer side of the gland, the gland is rotatably arranged in the internal thread of the annular groove through the external thread, and the lower end of the gland is pressed on the filler.
The valve is characterized in that a lower circular groove is formed in the middle of the lower end of the valve cover, the upper end of the valve core is designed into a circular sliding block, and the circular sliding block of the valve core is slidably arranged in the lower circular groove of the valve cover.
And the two sides of the valve body close to the upper end are respectively provided with an installation through hole.
The utility model has the advantages that the design is ingenious, the structure is reasonable and compact, the valve core and the valve seat are sealed by adopting a taper line with an angle difference of 5 degrees, the sealing reliability is good, and the leakage amount is small; the valve body and the valve seat are sealed by adopting taper lines with angle difference of 5 degrees, so that the sealing performance is good, and the volume of the valve seat is small; the minimum flow rate cv0.001 can be adjusted.
Drawings
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is an enlarged schematic view of a portion of the present utility model.
Detailed Description
Referring to the accompanying drawings 1-2, the micro flow regulating valve comprises a valve cover 1, a valve body 2, a valve seat 3, a valve core 4 and a valve rod 5, wherein the valve seat 3 is arranged in the middle of the valve body 2, the valve core 4 is designed on the valve seat 3, the valve core 4 is in sealing fit with the valve seat 3, the upper end of the valve core 4 is connected with the valve rod 5, the valve cover 1 is arranged at the upper end of the valve body 2, the upper end of the valve rod 5 penetrates through the valve cover 1, a sealing mechanism is arranged between the valve rod 5 and the valve cover 1, the valve body 2 comprises an inlet runner 21 and an outlet runner 22, the lower end of the inner part of the valve body 2 is designed with the inlet runner 21, the upper end of the inner part of the valve body 2 is designed with the outlet runner 22, the inlet runner 21 is communicated with the outlet runner 22 through a round hole, the inner part of the round hole is designed with an internal thread, the valve seat 3 is designed into a hollow cylindrical body, the upper end of the hollow cylindrical body is designed with an annular bulge in a circle, the lower end of the annular bulge is designed into a first external conical sealing surface 31, the outer side of the lower end of the hollow cylindrical body is designed with an external thread, the upper end of the round hole is designed with a first internal conical sealing surface 23, the valve seat 3 is rotatably arranged in the internal thread of the round hole through the external thread, the first external conical sealing surface 31 of the valve seat 3 is in sealing fit with the first internal conical sealing surface 23 of the round hole, and the taper difference between the first external conical sealing surface 31 and the first internal conical sealing surface 23 is 5 degrees; the valve core 4 is designed into a cylinder, the lower end of the cylinder is designed with an outer annular conical surface 41, and a conical head 42 is also designed below the outer annular conical surface 41; an inner annular conical surface 32 is designed at the upper end of the central hole of the hollow cylindrical body of the valve seat 3; the conical head 42 of the valve core 4 extends into the central hole of the valve seat 3, the outer annular conical surface 41 of the valve core 4 is in sealing fit with the inner annular conical surface 32 of the valve seat 3, and the taper difference between the outer annular conical surface 41 and the inner annular conical surface 32 is 5 degrees.
The valve body 2 upper end inside design have the internal thread, the valve gap 1 lower extreme design has the external screw thread, the valve gap 1 is installed in the internal screw thread of valve body 2 through the external screw thread rotation, and installs sealed the pad between valve gap 1 and the valve body 2.
The sealing mechanism comprises a gland 6, a packing 7 and a protective ring 8, an annular groove is designed in the middle of the upper end of the valve cover 1, the valve rod 5 penetrates through the middle of the valve cover 1, the gland 6, the packing 7 and the protective ring 8 are sleeved on the valve rod 5 from top to bottom, the protective ring 8 is arranged at the bottom in the annular groove, the packing 7 is pressed on the protective ring 8 and is also positioned in the annular groove, an internal thread is designed in the upper end of the annular groove, an external thread is designed in the lower end of the outer side of the gland 6, the gland 6 is rotatably arranged in the internal thread of the annular groove through the external thread, and the lower end of the gland 6 is pressed on the packing 7.
The middle of the lower end of the valve cover 1 is provided with a lower circular groove, the upper end of the valve core 4 is designed into a circular sliding block 42, and the circular sliding block 42 of the valve core 4 is slidably arranged in the lower circular groove of the valve cover 1.
The two sides of the valve body 2 close to the upper end are respectively provided with a mounting through hole 9. The upper end of the valve seat is provided with a straight opening or a cross-shaped opening for the rotation of the valve seat.
When the utility model is used, the minimum flow Cv0.001 can be adjusted; the valve core and the valve seat are sealed by adopting taper lines with angle difference of 5 degrees, so that the sealing reliability is good, and the leakage amount is small; the valve body and the valve seat are sealed by adopting taper lines with angle difference of 5 degrees, so that the sealing performance is good, and the volume of the valve seat is small; the valve body is drilled with two mounting through holes, so that the valve can be fixedly mounted on the pipeline; the unclean in the medium can adhere to the valve rod, and the protective ring can scrape the unclean when the valve rod moves upwards, so that the unclean and the filler can not rub with each other, and the filler and the valve rod are not easy to wear.
Claims (5)
1. The micro flow regulating valve is characterized by comprising a valve cover, a valve body, a valve seat, a valve core and a valve rod, wherein the valve seat is arranged in the middle of the valve body, the valve core is designed on the valve seat, the valve core is in sealing fit with the valve seat, the upper end of the valve core is connected with the valve rod, the valve cover is arranged at the upper end of the valve body, the upper end of the valve rod penetrates through the valve cover, a sealing mechanism is arranged between the valve rod and the valve cover, the valve body comprises an inlet runner and an outlet runner, the lower end of the interior of the valve body is designed with the inlet runner, the upper end of the interior of the valve body is designed with the outlet runner, the inlet runner is communicated with the outlet runner through a round hole, the interior of the round hole is designed with internal threads, the valve seat is designed into a hollow cylindrical body, the upper end of the hollow cylindrical body is designed with annular bulge in a circle, the lower end of the annular bulge is designed into a first external conical sealing surface, the outer threads are designed at the outer side of the lower end of the hollow cylindrical body, the upper end of the round hole is designed with a first internal conical sealing surface, the valve seat is rotatably arranged in the internal threads of the round hole through the external threads, the first external conical sealing surface of the valve seat is in sealing fit with the first internal conical sealing surface of the round hole, and the first external conical sealing surface of the round hole is 5 degrees different from the first external conical sealing surface; the valve core is designed into a cylinder, the lower end of the cylinder is designed with an outer annular conical surface, and a conical head is also designed below the outer annular conical surface; an inner annular conical surface is designed at the upper end of a central hole of a hollow cylindrical body of the valve seat; the conical head of the valve core extends into the central hole of the valve seat, the outer annular conical surface of the valve core is in sealing fit with the inner annular conical surface of the valve seat, and the taper difference between the outer annular conical surface and the inner annular conical surface is 5 degrees.
2. The micro flow regulating valve as claimed in claim 1, wherein the valve body has an inner thread formed in an upper end thereof, an outer thread formed in a lower end thereof, the valve cover is rotatably installed in the inner thread of the valve body by the outer thread, and a gasket is installed between the valve cover and the valve body.
3. The micro flow regulating valve as claimed in claim 1, wherein the sealing mechanism comprises a gland, a packing and a guard ring, an annular groove is arranged in the middle of the upper end of the valve cover, the valve rod penetrates through the middle of the valve cover, the gland, the packing and the guard ring are sleeved on the valve rod from top to bottom, the guard ring is arranged at the bottom in the annular groove, the packing is pressed on the guard ring and is also arranged in the annular groove, an internal thread is arranged in the upper end of the annular groove, an external thread is arranged at the lower end of the outer side of the gland, the gland is rotatably arranged in the internal thread of the annular groove through the external thread, and the lower end of the gland is pressed on the packing.
4. The micro flow regulating valve as claimed in claim 1, wherein a lower circular groove is formed in the middle of the lower end of the valve cover, the upper end of the valve core is designed into a circular slide block, and the circular slide block of the valve core is slidably installed in the lower circular groove of the valve cover.
5. The micro-flow regulating valve as claimed in claim 1, wherein the valve body is provided with a mounting through hole at a position near the upper end of the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322294059.3U CN220600479U (en) | 2023-08-25 | 2023-08-25 | Micro flow regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322294059.3U CN220600479U (en) | 2023-08-25 | 2023-08-25 | Micro flow regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220600479U true CN220600479U (en) | 2024-03-15 |
Family
ID=90165815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322294059.3U Active CN220600479U (en) | 2023-08-25 | 2023-08-25 | Micro flow regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220600479U (en) |
-
2023
- 2023-08-25 CN CN202322294059.3U patent/CN220600479U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |