CN215950402U - Pneumatic film cage type single-seat regulating valve - Google Patents
Pneumatic film cage type single-seat regulating valve Download PDFInfo
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- CN215950402U CN215950402U CN202122649173.4U CN202122649173U CN215950402U CN 215950402 U CN215950402 U CN 215950402U CN 202122649173 U CN202122649173 U CN 202122649173U CN 215950402 U CN215950402 U CN 215950402U
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- 230000001105 regulatory effect Effects 0.000 title abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of a pneumatic film cage type single-seat regulating valve, in particular to a pneumatic film cage type single-seat regulating valve which comprises a valve body, wherein a valve cover is arranged on the upper side of the valve body, a valve cage is arranged in the valve body, liquid flow holes are formed in the side surface of a valve cage ring, a valve core is arranged on the inner side of the valve cage, pressure relief holes are symmetrically formed in the side surface of the valve core, a connecting seat is arranged in the center of the upper side of the valve core, a valve rod is arranged on the upper side of the connecting seat, and a connecting rod is arranged at the upper end of the valve rod. According to the utility model, through the clamping connection block and the clamping and pressing groove, when the pneumatic film cage type single-seat regulating valve is used, the valve rod and the connecting rod of the pneumatic actuator are connected with the valve rod through the connecting rod, the bulge on the valve rod and the clamping and pressing groove on the inner side of the clamping connection block, so that the connection strength between the connecting rod and the valve rod is ensured, the sliding of the valve rod is avoided, and the regulation accuracy is ensured.
Description
Technical Field
The utility model relates to the technical field of pneumatic film cage type single-seat regulating valves, in particular to a pneumatic film cage type single-seat regulating valve.
Background
The pneumatic membrane cage type single-seat regulating valve is a special valve, and liquid passing flow and flow velocity of the valve can be accurately regulated through a valve cage, so that a good regulating effect is achieved.
When the existing pneumatic film cage type single-seat regulating valve is used, only the inner side friction surface of the clamping connection block is used for clamping connection between the valve rod and the connecting rod of the pneumatic actuator, so that the connection strength between the connecting rod and the valve rod cannot be guaranteed, the valve rod is easy to slide, the accuracy of regulation is influenced, and meanwhile, when the existing single-seat regulating valve is used, the valve core slides easily under the action of high-pressure liquid on one side, so that a gap appears between the valve core and the valve cage, and then liquid leakage appears.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a pneumatic film cage type single-seat regulating valve, which solves the problems that when the conventional pneumatic film cage type single-seat regulating valve is used, the valve rod is only in clamping connection with the connecting rod of a pneumatic actuator through a friction surface on the inner side of a clamping connection block, so that the connection strength between the connecting rod and the valve rod cannot be ensured, the valve rod is easy to slide, and the regulation accuracy is influenced.
In order to achieve the purpose, the utility model provides the following technical scheme: pneumatic film cage list seat governing valve, including the valve body, the valve body upside is provided with the valve gap, the inside valve cage that is provided with of valve body, valve cage ring side is provided with liquid flow hole, the valve cage inboard is provided with the case, side symmetry is provided with the pressure release hole on the case, case upside central point puts and is provided with the connecting seat, the connecting seat upside is provided with the valve rod, the valve rod upper end is provided with the connecting rod, the valve rod with connecting rod hookup location is provided with and presss from both sides tight connecting block, the inside symmetry of the tight connecting block of clamp is provided with the card and presses the recess, connecting seat upper portion is provided with sealed lid, the symmetry is provided with the balanced pressure through-hole on the sealed lid.
As a preferred technical scheme of the present invention, a pneumatic actuator is disposed at an upper end of the connecting rod, support rods are symmetrically disposed on a lower side surface of the pneumatic actuator, a compression spring is disposed at a contact position of the valve cover and the valve rod, the compression spring can tightly connect the packing and the valve rod, and the support rods can fixedly connect the valve cover and the pneumatic actuator.
As a preferred technical scheme of the utility model, the upper side of the compression spring is provided with a filler, the lower ring side of the valve cage is provided with a clamping ring groove, the valve cover is connected with the valve body through a bolt, and the clamping ring groove can enable the valve cage to be connected with the valve body.
As a preferred technical solution of the present invention, the valve cover is connected to the pneumatic actuator through the support rod, the connection rod is connected to the valve rod through the clamping connection block, the valve cover can press and seal the upper side of the valve body, and the pneumatic actuator can provide power for the movement of the valve rod.
As a preferred technical scheme of the utility model, the sealing cover is connected with the valve body through a clamping groove, the pneumatic actuator is connected with the connecting rod through a bolt, and the sealing cover can limit and clamp the upper side of the valve core.
As a preferable technical solution of the present invention, the clamping connection block is connected to the valve rod through the clamping groove, the connection rod is connected to the clamping connection block through the clamping groove, and the valve rod provides a power transmission member for movement of the valve element.
As a preferred technical solution of the present invention, the valve cage is connected to the valve body through the snap ring groove.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, through the clamping connection block and the clamping and pressing groove, when the pneumatic film cage type single-seat regulating valve is used, the valve rod and the connecting rod of the pneumatic actuator are connected with the valve rod through the connecting rod, the bulge on the valve rod and the clamping and pressing groove on the inner side of the clamping connection block, so that the connection strength between the connecting rod and the valve rod is ensured, the sliding of the valve rod is avoided, and the regulation accuracy is ensured;
2. according to the utility model, through the valve core, the pressure relief hole, the sealing cover and the balance pressure through hole, when the single-seat regulating valve is used, after the valve core is closed, high-pressure liquid enters the cavity between the valve rod and the valve cover through the pressure relief hole and the balance pressure through hole, so that the pressures on the upper side and the lower side of the valve core are balanced, and liquid leakage caused by a gap between the valve core and the valve cage is avoided.
Drawings
FIG. 1 is a schematic diagram of the main cross-sectional structure of the pneumatic membrane cage single seat regulator valve of the present invention;
FIG. 2 is a schematic diagram of a schematic front view of a cage in the pneumatic membrane cage single seat regulator valve of the present invention;
FIG. 3 is a schematic diagram of a valve core of the pneumatic membrane cage type single seat regulating valve according to the present invention;
FIG. 4 is a schematic left sectional view of the clamping connection block, the connection rod and the valve stem of the pneumatic membrane cage single seat regulator valve of the present invention.
In the figure: 1. a valve body; 2. a valve core; 3. a cage; 4. a liquid flow aperture; 5. a filler; 6. a compression spring; 7. a valve cover; 8. a valve stem; 9. a sealing cover; 10. a balance pressure through hole; 11. clamping the connecting block; 12. a pneumatic actuator; 13. a connecting rod; 14. clamping and fixing the ring groove; 15. a connecting seat; 16. a pressure relief vent; 17. a support bar; 18. and clamping and pressing the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the pneumatic film cage type single-seat regulating valve comprises a valve body 1, a valve cover 7 is arranged on the upper side of the valve body 1, a valve cage 3 is arranged inside the valve body 1, a liquid flow hole 4 is arranged on the side surface of the ring of the valve cage 3, a valve core 2 is arranged on the inner side of the valve cage 3, a pressure relief hole 16 is symmetrically arranged on the side surface of the valve core 2, a connecting seat 15 is arranged at the center position of the upper side of the valve core 2, a valve rod 8 is arranged on the upper side of the connecting seat 15, a connecting rod 13 is arranged at the upper end of the valve rod 8, a clamping connecting block 11 is arranged at the connecting position of the valve rod 8 and the connecting rod 13, clamping and pressing grooves 18 are symmetrically arranged inside the clamping connecting block 11, a sealing cover 9 is arranged on the connecting seat 15, and balancing and pressing through holes 10 are symmetrically arranged on the sealing cover 9.
Specifically, referring to fig. 1 and 4, a pneumatic actuator 12 is disposed at the upper end of a connecting rod 13, support rods 17 are symmetrically disposed on the lower side of the pneumatic actuator 12, a compression spring 6 is disposed at a contact position between a valve cover 7 and a valve rod 8, the compression spring 6 can be tightly connected between a packing 5 and the valve rod 8, and the support rods 17 can enable the valve cover 7 and the pneumatic actuator 12 to be fixedly connected.
Specifically, referring to fig. 1-2, a packing 5 is disposed on an upper side of a compression spring 6, a fastening ring groove 14 is disposed on a lower ring side of a valve cage 3, a valve cover 7 is connected to the valve body 1 through a bolt, and the fastening ring groove 14 enables the valve cage 2 to be connected to the valve body 1.
Specifically, referring to fig. 1 and 4, the valve cover 7 is connected with the pneumatic actuator 12 through a support rod 17, the connecting rod 13 is connected with the valve rod 8 through a clamping connecting block 11, the valve cover 7 can compress and seal the upper side of the valve body 1, and the pneumatic actuator 12 can provide power for the movement of the valve rod 8.
Specifically, referring to fig. 1, 3 and 4, the sealing cover 9 is connected with the valve body 1 through a clamping groove, the pneumatic actuator 12 is connected with the connecting rod 13 through a bolt, and the sealing cover 9 can limit and clamp the upper side of the valve core 2.
Specifically, referring to fig. 1, 3 and 4, the clamping connection block 11 is connected to the valve rod 8 through the clamping groove 18, the connection rod 13 is connected to the clamping connection block 11 through the clamping groove 18, and the valve rod 8 provides a power transmission member for the movement of the valve element 2.
Specifically, referring to fig. 1-2, the cage 3 is connected to the valve body 1 via a snap ring groove 14.
The working principle is as follows: when in use, the valve body 1 is well connected with a pipeline, the pneumatic actuator 12 is connected with the electric air pump, the pneumatic actuator 12 drives the connecting rod 13 to move upwards, thereby the valve core 2 is lifted from the bottom of the valve cage 3, the liquid flows through the liquid flow hole 4 from the inner bottom side of the valve body 1 and enters into the pipeline at the other side of the valve body 1, when the valve needs to be closed, the pneumatic actuator 12 drives the connecting rod 13 and the valve rod 8 to move downwards, so that the valve core 2 blocks the liquid flow hole 4 on the side wall of the valve cage 3, the valve is closed, high-pressure liquid enters a gap between the upper side of the sealing cover 9 and the valve cover 7 through the pressure relief hole 16 on the valve core 2 and the balance pressure through hole 10 on the sealing cover 9, and then make 2 both sides pressure balance of case, press from both sides tight connecting block 11 and can be so that connecting rod 13 and valve rod 8 are connected fixedly, and then avoid the slippage of valve rod 8, guarantee the accurate nature of regulation of valve.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. Pneumatic film cage list seat governing valve, including valve body (1), its characterized in that: a valve cover (7) is arranged on the upper side of the valve body (1), a valve cage (3) is arranged in the valve body (1), a liquid flow hole (4) is arranged on the side surface of the valve cage (3), a valve core (2) is arranged on the inner side of the valve cage (3), the upper side surface of the valve core (2) is symmetrically provided with pressure relief holes (16), the central position of the upper side of the valve core (2) is provided with a connecting seat (15), a valve rod (8) is arranged on the upper side of the connecting seat (15), a connecting rod (13) is arranged at the upper end of the valve rod (8), a clamping connecting block (11) is arranged at the connecting position of the valve rod (8) and the connecting rod (13), clamping and pressing grooves (18) are symmetrically arranged in the clamping and connecting block (11), the upper part of the connecting seat (15) is provided with a sealing cover (9), and balancing pressure through holes (10) are symmetrically arranged on the sealing cover (9).
2. The pneumatic membrane cage single seat regulator valve of claim 1, wherein: the pneumatic actuator (12) is arranged at the upper end of the connecting rod (13), the supporting rods (17) are symmetrically arranged on the lower side face of the pneumatic actuator (12), and the compression spring (6) is arranged at the contact position of the valve cover (7) and the valve rod (8).
3. The pneumatic membrane cage single seat regulator valve of claim 2, wherein: compression spring (6) upside is provided with filler (5), valve cage (3) lower ring side is provided with the solid annular of card (14), valve gap (7) with valve body (1) passes through bolted connection.
4. The pneumatic membrane cage single seat regulator valve of claim 2, wherein: the valve cover (7) is connected with the pneumatic actuator (12) through the support rod (17), and the connecting rod (13) is connected with the valve rod (8) through the clamping connecting block (11).
5. The pneumatic membrane cage single seat regulator valve of claim 2, wherein: the sealing cover (9) is connected with the valve body (1) through a clamping groove, and the pneumatic actuator (12) is connected with the connecting rod (13) through a bolt.
6. The pneumatic membrane cage single seat regulator valve of claim 1, wherein: the clamping connection block (11) is connected with the valve rod (8) through the clamping and pressing groove (18), and the connection rod (13) is connected with the clamping connection block (11) through the clamping and pressing groove (18).
7. A pneumatic membrane cage single seat regulator valve according to claim 3, wherein: the valve cage (3) is connected with the valve body (1) through the clamping ring groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122649173.4U CN215950402U (en) | 2021-11-01 | 2021-11-01 | Pneumatic film cage type single-seat regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122649173.4U CN215950402U (en) | 2021-11-01 | 2021-11-01 | Pneumatic film cage type single-seat regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215950402U true CN215950402U (en) | 2022-03-04 |
Family
ID=80411416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122649173.4U Active CN215950402U (en) | 2021-11-01 | 2021-11-01 | Pneumatic film cage type single-seat regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215950402U (en) |
-
2021
- 2021-11-01 CN CN202122649173.4U patent/CN215950402U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231109 Address after: 116000 Longxing Road 50, the leading industrial park of Dalian high tech Industrial Park, Liaoning Patentee after: DALIAN HARMO SYNERGY AUTOMATION Co.,Ltd. Address before: 311402 Yin Hu Jie Dao Gao Qiao Cun, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Shengbao valve industry Co.,Ltd. |