CN210770334U - Knife valve with filtering effect - Google Patents
Knife valve with filtering effect Download PDFInfo
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- CN210770334U CN210770334U CN201921668388.7U CN201921668388U CN210770334U CN 210770334 U CN210770334 U CN 210770334U CN 201921668388 U CN201921668388 U CN 201921668388U CN 210770334 U CN210770334 U CN 210770334U
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- valve
- filter screen
- knife
- piston rod
- flashboard
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Abstract
The utility model discloses a knife valve with filter effect relates to knife valve technical field, for solving current knife gate valve function singleness, if want to realize that filtering capability needs add Y type filter on the pipeline and realize, comparatively troublesome problem. The top of disk seat is provided with the valve rod, the pneumatic cylinder is installed to the one end of valve rod, the top of pneumatic cylinder is provided with the inlet, install the piston rod on the output of pneumatic cylinder, and the one end of piston rod extends to the inside of valve rod, the flashboard is installed to the one end of piston rod, one side of flashboard is provided with the sealing washer, one side of sealing washer is provided with the filter screen, the top of filter screen is provided with the mounting panel, the upper surface of mounting panel is provided with draws the handle.
Description
Technical Field
The utility model relates to a knife valve technical field specifically is a knife valve with filter effect.
Background
The knife gate valve is also called knife gate valve, slurry valve, mud valve, its opening and closing part is a flashboard, the movement direction of the flashboard is perpendicular to the fluid direction, the medium is cut off by the blade-shaped flashboard which can cut the fiber material, the flashboard has two sealing surfaces, the two sealing surfaces of the most commonly used mode flashboard valve form a wedge shape, the wedge angle is different with the valve parameter, usually five degrees, the flashboard of the wedge-type knife gate valve can be made into a whole, called rigid flashboard; the gate plate can also be made into a gate plate capable of generating micro deformation so as to improve the manufacturability of the gate plate and compensate the deviation of the angle of the sealing surface in the machining process, and the gate plate is called an elastic gate plate. The valve body does not actually have a cavity, the flashboard is lifted in the side guide groove and is tightly pressed on the valve seat by the lug at the bottom, and when high medium tightness is required, an O-shaped sealing valve seat can be selected to realize bidirectional sealing. The knife gate valve has the advantages of small installation space, low working pressure, difficult accumulation of sundries and low price.
However, the existing knife gate valve has a single function, and is troublesome if a Y-shaped filter needs to be additionally arranged on a pipeline to realize a filtering function; thus, the existing requirements are not met, for which we propose a knife valve with a filtering effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a knife valve with filter effect to solve the current knife gate valve function singleness that proposes in the above-mentioned background art, if want to realize that filter function needs add Y type filter on the pipeline and realize, comparatively troublesome problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a knife valve with filter effect, includes the disk seat, the top of disk seat is provided with the valve rod, the pneumatic cylinder is installed to the one end of valve rod, the top of pneumatic cylinder is provided with the inlet, install the piston rod on the output of pneumatic cylinder, and the one end of piston rod extends to the inside of valve rod, the flashboard is installed to the one end of piston rod, one side of flashboard is provided with the sealing washer, one side of sealing washer is provided with the filter screen, the top of filter screen is provided with the mounting panel, the upper surface of mounting panel is provided with draws the handle.
Preferably, the piston rod is fixedly connected with the gate plate through a sealing connecting piece.
Preferably, the periphery of the outer wall of the filter screen is provided with rubber strips.
Preferably, the mounting plate is in threaded connection with the valve seat through a screw.
Preferably, a drain outlet is formed in the lower portion of the valve seat, a sealing cap is mounted on the drain outlet, and the sealing cap is in threaded connection with the drain outlet.
Preferably, the front end face and the rear end face of the valve seat are both provided with a flange plate, and the outer wall of the flange plate is provided with a connecting screw hole.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an at disk seat internally mounted filter screen, when the medium passes through the knife valve, its inside impurity can be filtered by the filter screen, stops in the disk seat to protection pipe connection equipment's normal use, the drain of the impurity accessible below of collecting together in the disk seat discharges, avoids impurity too much, causes the valve to block up, need not to add Y type filter on the pipeline, and it is more convenient to use.
2. The mounting plate is arranged on the upper portion of the filter screen and is in threaded connection with the valve seat through the screws, so that the effect of fixing the filter screen is achieved, the mounting mode is simple, the screws are only required to be dismounted when the filter screen is dismounted, the filter screen is pulled out of the valve seat through the pull handle, and the filter screen with the corresponding density can be conveniently replaced according to different pipeline media, so that the best conveying effect is achieved.
3. Through the outer wall mounting rubber strip at the filter screen, because of the mode that the filter screen adopted the draw-in groove pull is installed inside the disk seat, set up the rubber strip at its outer wall, can pass through elasticity and the draw-in groove in close contact with of rubber self during the joint, make the installation of filter screen more firm, let it can bear great pipeline pressure and not receive the destruction.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of the filter screen mounting and dismounting structure of the present invention;
in the figure: 1. a valve seat; 2. a valve stem; 3. a hydraulic cylinder; 4. a liquid inlet; 5. a flange plate; 6. a connecting screw hole; 7. a shutter plate; 8. a piston rod; 9. a sealing connection; 10. a seal ring; 11. a filter screen; 12. a rubber strip; 13. mounting a plate; 14. a screw; 15. pulling a handle; 16. a sewage draining outlet; 17. and (5) sealing the cap.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the present invention provides an embodiment: a knife valve with a filtering effect comprises a valve seat 1, a valve rod 2 is arranged above the valve seat 1, a hydraulic cylinder 3 is arranged at one end of the valve rod 2, the hydraulic cylinder 3 can control a piston rod 8 to stretch and retract through hydraulic oil, a liquid inlet 4 is arranged above the hydraulic cylinder 3, a piston rod 8 is arranged at the output end of the hydraulic cylinder 3, one end of the piston rod 8 extends into the valve rod 2, a flashboard 7 is arranged at one end of the piston rod 8, the flashboard 7 can be driven to lift when the piston rod 8 stretches and retracts, the sealing effect of the control valve is achieved, a sealing ring 10 is arranged on one side of the flashboard 7, the sealing performance of the knife valve can be enhanced through the sealing ring 10, a filter screen 11 is arranged on one side of the sealing ring 10, the filter screen 11 plays a role of filtering impurities in a medium, a mounting plate 13 is arranged above the, the pull handle 15 can more conveniently pull the filter screen 11 out of the valve seat 1.
Further, piston rod 8 passes through sealing connecting piece 9 and flashboard 7 fixed connection, and piston rod 8 can drive flashboard 7 lift under hydraulic effect, reaches the sealed effect of control flap, and the lift in-process can be avoided to the sealing member of piston rod 8 and flashboard 7 junction, and the medium leaks from junction between them.
Further, rubber strip 12 is all installed all around to the outer wall of filter screen 11, and filter screen 11 adopts the mode of draw-in groove pull to install inside disk seat 1, and the rubber strip 12 of its outer wall can be through self elasticity and draw-in groove in close contact with, and messenger's filter screen 11 installation is more firm.
Further, the mounting plate 13 is in threaded connection with the valve seat 1 through the screw 14, the mounting plate 13 plays a role in fixing the filter screen 11, the mounting mode is in threaded connection, the mounting and dismounting are simple, and the filter screen 11 with corresponding density can be conveniently replaced according to different pipeline media.
Further, the below of disk seat 1 is provided with drain 16, installs sealed cap 17 on the drain 16, and sealed cap 17 and drain 16 threaded connection, and the impurity that is filtered by filter screen 11 can be built up inside disk seat 1, and the accessible is pulled down sealed cap 17 of drain 16 department and is discharged impurity, avoids the valve to block up.
Further, ring flange 5 is all installed to disk seat 1's preceding terminal surface and rear end face, is provided with on the outer wall of ring flange 5 and connects screw 6, and ring flange 5 can be with knife valve and pipeline flange joint, and the flange joint leakproofness is good, and can bear great pressure.
The working principle is as follows: when the valve is used, the knife valve is connected with a pipeline flange through the flange plates 5 at the front end and the rear end, the hydraulic cylinder 3 is installed above the knife valve rod 2, the hydraulic cylinder 3 can control the piston rod 8 to drive the flashboard 7 to lift under the hydraulic action, the sealing effect of the control valve is achieved, the sealing ring 10 is installed at the joint of the flashboard 7 and the valve core, the sealing performance of the valve can be effectively improved through the sealing ring 10, as the filter screen 11 is installed inside the valve seat 1, when a medium passes through the knife valve, impurities inside the medium can be filtered by the filter screen 11 and stay in the valve seat 1 to protect the normal use of pipeline connecting equipment, the impurities accumulated in the valve seat 1 can be discharged through the drain outlet 16 below the valve seat to avoid excessive impurities to cause valve blockage, the mounting plate 13 is arranged on the upper portion of the filter screen 11, the mounting plate 13 is in threaded connection, the whole assembly and disassembly is simple, and the filter screen 11 with the corresponding density can be conveniently replaced according to different media so as to achieve the best conveying effect.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. Knife valve with filtering effect, comprising a valve seat (1), characterized in that: the top of disk seat (1) is provided with valve rod (2), pneumatic cylinder (3) are installed to the one end of valve rod (2), the top of pneumatic cylinder (3) is provided with inlet (4), install piston rod (8) on the output of pneumatic cylinder (3), and the one end of piston rod (8) extends to the inside of valve rod (2), flashboard (7) are installed to the one end of piston rod (8), one side of flashboard (7) is provided with sealing washer (10), one side of sealing washer (10) is provided with filter screen (11), the top of filter screen (11) is provided with mounting panel (13), the upper surface of mounting panel (13) is provided with draws (15).
2. A knife valve with filtering effect according to claim 1, characterized in that: the piston rod (8) is fixedly connected with the flashboard (7) through a sealing connecting piece (9).
3. A knife valve with filtering effect according to claim 1, characterized in that: rubber strips (12) are arranged on the periphery of the outer wall of the filter screen (11).
4. A knife valve with filtering effect according to claim 1, characterized in that: the mounting plate (13) is in threaded connection with the valve seat (1) through a screw (14).
5. A knife valve with filtering effect according to claim 1, characterized in that: a sewage draining outlet (16) is arranged below the valve seat (1), a sealing cap (17) is installed on the sewage draining outlet (16), and the sealing cap (17) is in threaded connection with the sewage draining outlet (16).
6. A knife valve with filtering effect according to claim 1, characterized in that: the valve seat is characterized in that the front end face and the rear end face of the valve seat (1) are both provided with a flange plate (5), and the outer wall of the flange plate (5) is provided with a connecting screw hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921668388.7U CN210770334U (en) | 2019-10-08 | 2019-10-08 | Knife valve with filtering effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921668388.7U CN210770334U (en) | 2019-10-08 | 2019-10-08 | Knife valve with filtering effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210770334U true CN210770334U (en) | 2020-06-16 |
Family
ID=71047017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921668388.7U Active CN210770334U (en) | 2019-10-08 | 2019-10-08 | Knife valve with filtering effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210770334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253776A (en) * | 2020-10-23 | 2021-01-22 | 安徽铜陵科力阀门有限责任公司 | Valve with filtering function |
-
2019
- 2019-10-08 CN CN201921668388.7U patent/CN210770334U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253776A (en) * | 2020-10-23 | 2021-01-22 | 安徽铜陵科力阀门有限责任公司 | Valve with filtering function |
| CN112253776B (en) * | 2020-10-23 | 2024-04-12 | 安徽科力阀业有限公司 | Valve with filtering function |
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