CN205479395U - A check valve subassembly for in sludge pump - Google Patents
A check valve subassembly for in sludge pump Download PDFInfo
- Publication number
- CN205479395U CN205479395U CN201620222077.8U CN201620222077U CN205479395U CN 205479395 U CN205479395 U CN 205479395U CN 201620222077 U CN201620222077 U CN 201620222077U CN 205479395 U CN205479395 U CN 205479395U
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- valve
- circle
- check valve
- sludge pump
- spool
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Abstract
A check valve subassembly for in sludge pump belongs to valve technical field, including subassembly casing and the case of setting in the subassembly casing, the subassembly casing comprises entrance point, exit end, bottom plate and valve gap, and entrance point and exit end each other become 90 contained angles, and the bottom plate top is equipped with the valve circle, and the valve gap is fixed in the top of subassembly casing, and the valve gap bottom surface is equipped with the spout, and during the valve rod of case slided and acts on the spout, the sealed pad of case bottom opened and shut and acts on the upper surface of valve circle. The utility model discloses simple structure, the theory of operation is clear, dismouting is compared with traditional case structure, change more convenient, the design of boss has increased seals the sealing performance who fills up with the case, has prolonged life, the valve circle adopts bolted connection with the subassembly bottom plate, belongs to solderless connection, has avoided the fracture that produces behind the stress concentration of welding seam department, the utility model discloses manufacturing cost has been practiced thrift, when having saved the maintainer to the subassembly bottom plate that only needs to be changed.
Description
Technical field
This utility model belongs to valve technology field, relates to a kind of check valve assembly, particularly relates to a kind of check valve assembly in sludge pump.
Background technology
Opening and closing element is turned on and off voluntarily by media flow and strength, to prevent valve that medium flows backwards on check valve.Divide by structure, lift check valve, swing type check valve and three kinds of butterfly check valve can be divided into.These check valves are commonly applied in the devices such as factory, heating system, compressed air, water supply, stop backflow or discharge.
To realize being synchronized with the movement of two cylinder bodies in sludge pump and will have the participation of check valve, the performance of check valve directly determines the effect that sludge pump carries.Existing check valve assembly is made up of assembly housing and spool substantially, and spool is internal with assembly housing directly to be contacted, and spool constantly impacts inside assembly housing, the slightly aobvious shortcoming of assembly housing working strength；Assembly housing material can not meet the corrosion of various chemical property sewage, and service life is shorter；Check valve needed after damaging to change check valve assembly in the past, and manufacturing cost is higher, wastes substantial amounts of maintenance man-hours.
Utility model content
The deficiency that this utility model in use exists for existing check valve assembly makes improvements, a kind of check valve assembly in sludge pump is proposed, optimize check valve assembly enclosure interior and import and export the structure connected, add the sealing property of check valve in a high voltage state, the shock resistance of check valve assembly housing can be strengthened, the service life of check valve assembly can be extended, can further improve it and install, change and the efficiency of later maintenance.
The technical solution of the utility model is: the check valve assembly in sludge pump, including assembly housing and the spool being arranged in assembly housing；It is characterized in that: described assembly housing is made up of entrance point, the port of export, base plate and valve gap, described entrance point and the mutual angle in 90 ° of the described port of export, described base plate is arranged over valve circle, described valve gap is fixed on the top of described assembly housing, described valve gap bottom surface is provided with chute, the valve stem slides of described spool acts in described chute, and the sealing gasket folding bottom described spool acts on the upper surface of described valve circle.
Described entrance point and the port of export are respectively provided with can the ring flange of connecting line.
Described valve circle is combined by boss, through hole, counterbore and seal groove, through hole is placed in the center of circle of valve circle, and counterbore is distributed in the periphery of through hole, and seal groove is placed in the bottom surface of valve circle, valve circle is connected fixing by countersunk bolts with base plate, arranges sealing ring and be tightly connected with base plate formation in seal groove.
Sealing gasket folding bottom described spool acts on the boss of described valve circle, and the diameter of boss is slightly larger than the sealing gasket diameter of spool.
The diameter of described through hole is identical with entrance point diameter specifications.
Described chute is fixedly installed on the bottom surface of valve gap by screw thread or welding manner, and the valve rod of spool forms, with chute, the matched in clearance slided up and down.
The beneficial effects of the utility model are: the check valve assembly in sludge pump that the utility model proposes, simple in construction, and operation principle is clear, and advantage is as follows compared with traditional valve core structure:
1. entrance point and the mutual angle in 90 ° of the port of export, entrance end external connections all uses Flange joint, dismount, change more convenient；
2. support plate is arranged on the bottom of package shell, and valve circle is arranged on support plate, and valve circle and support plate use sealing ring to seal, and prevent from producing in a high voltage state leakage；
3. the valve circle back side uses seal groove, and seal groove is built-in with sealing ring, and valve circle forms end face seal with support plate, and valve circle front forms boss, and boss adds and the sealing property of seal spool pad, extends service life；
4. valve gap easy accessibility, it is simple to the later stage checks and maintenance；Valve circle uses stainless steel, if valve circle is carbon steel material, on the one hand carbon steel corrosion resistance is inadequate, on the other hand, check valve at work, the continuous folding of spool, valve circle is constantly produced impulsive force, the impact strength of carbon steel material is the most inadequate；
5. valve circle is with bolts with support plate, belongs to solderless and connects, it is to avoid the fracture that commissure stress produces after concentrating；
6. the welding of unlike material is the most difficult；Check valve assembly to be changed after avoiding in the past damaging, the present invention has only to change support plate, has saved manufacturing cost, saved maintenance man-hours.
Accompanying drawing explanation
Fig. 1 is this utility model overall structure schematic diagram.
Fig. 2 is valve coil structures schematic diagram in this utility model.
In figure: assembly housing 1, base plate 2, entrance point 3, valve circle 4, counterbore 4-1, boss 4-2, through hole 4-3, seal groove 4-4, the port of export 5, chute 6, valve gap 7, spool 8.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1-2, the check valve assembly in sludge pump, including assembly housing 1 and the spool 8 being arranged in assembly housing 1；Assembly housing 1 is made up of entrance point 3, the port of export 5, base plate 2 and valve gap 7, entrance point 3 and the mutual angle in 90 ° of the port of export 5, base plate 2 is arranged over valve circle 4, valve gap 7 is fixed on the top of assembly housing 1, valve gap 7 bottom surface is provided with chute 6, the valve stem slides of spool 8 acts in chute 6, and the sealing gasket folding bottom spool 8 acts on the upper surface of valve circle 4.
As shown in Figure 1-2, the check valve assembly in sludge pump, entrance point 3 and the port of export 5 are respectively provided with can the ring flange of connecting line；Valve circle 4 is combined by boss 4-2, through hole 4-3, counterbore 4-1 and seal groove 4-4, through hole 4-3 is placed in the center of circle of valve circle 4, counterbore 4-1 is distributed in the periphery of through hole 4-3, seal groove 4-4 is placed in the bottom surface of valve circle 4, valve circle 4 is connected fixing by countersunk bolts with base plate 2, arranges sealing ring and be tightly connected with base plate 2 formation in seal groove 4-4；Sealing gasket folding bottom spool 8 acts on the boss 4-2 of described valve circle 4, and the diameter of boss 4-2 is slightly larger than the sealing gasket diameter of spool 8；The diameter of through hole 4-3 is identical with entrance point 3 diameter specifications；Chute 6 is fixedly installed on the bottom surface of valve gap 7 by screw thread or welding manner, and the valve rod of spool 8 forms, with chute 6, the matched in clearance slided up and down.
This utility model simple in construction, operation principle is clear, dismount compared with traditional valve core structure, change more convenient；The design of boss adds and the sealing property of seal spool pad, extends service life；Valve circle is with bolts with support plate, belongs to solderless and connects, it is to avoid the fracture that commissure stress produces after concentrating；The present invention has only to change support plate, has saved manufacturing cost, has saved maintenance man-hours.
Claims (6)
1. the check valve assembly in the sludge pump, including assembly housing (1) and the spool (8) that is arranged in assembly housing (1)；It is characterized in that: described assembly housing (1) is by entrance point (3), the port of export (5), base plate (2) and valve gap (7) are constituted, described entrance point (3) and the mutual angle in 90 ° of the described port of export (5), described base plate (2) is arranged over valve circle (4), described valve gap (7) is fixed on the top of described assembly housing (1), described valve gap (7) bottom surface is provided with chute (6), the valve stem slides of described spool (8) acts in described chute (6), the sealing gasket folding of described spool (8) bottom acts on the upper surface of described valve circle (4).
Check valve assembly in sludge pump the most according to claim 1, it is characterised in that: described entrance point (3) and the port of export (5) are respectively provided with can the ring flange of connecting line.
Check valve assembly in sludge pump the most according to claim 1, it is characterized in that: described valve circle (4) is by boss (4-2), through hole (4-3), counterbore (4-1) and seal groove (4-4) combine, through hole (4-3) is placed in the center of circle of valve circle (4), counterbore (4-1) is distributed in the periphery of through hole (4-3), seal groove (4-4) is placed in the bottom surface of valve circle (4), valve circle (4) is connected fixing by countersunk bolts with base plate (2), sealing ring is set in seal groove (4-4) and is tightly connected with base plate (2) formation.
Check valve assembly in sludge pump the most according to claim 3, it is characterized in that: the sealing gasket folding of described spool (8) bottom acts on the boss (4-2) of described valve circle (4), and the diameter of boss (4-2) is slightly larger than the sealing gasket diameter of spool (8).
Check valve assembly in sludge pump the most according to claim 3, it is characterised in that: the diameter of described through hole (4-3) is identical with entrance point (3) diameter specifications.
Check valve assembly in sludge pump the most according to claim 1, it is characterized in that: described chute (6) is fixedly installed on the bottom surface of valve gap (7) by screw thread or welding manner, the valve rod of spool (8) forms, with chute (6), the matched in clearance slided up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620222077.8U CN205479395U (en) | 2016-03-22 | 2016-03-22 | A check valve subassembly for in sludge pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620222077.8U CN205479395U (en) | 2016-03-22 | 2016-03-22 | A check valve subassembly for in sludge pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479395U true CN205479395U (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620222077.8U Active CN205479395U (en) | 2016-03-22 | 2016-03-22 | A check valve subassembly for in sludge pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479395U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697798A (en) * | 2016-03-22 | 2016-06-22 | 扬州四启环保设备有限公司 | One-way valve assembly used in sludge pump |
-
2016
- 2016-03-22 CN CN201620222077.8U patent/CN205479395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697798A (en) * | 2016-03-22 | 2016-06-22 | 扬州四启环保设备有限公司 | One-way valve assembly used in sludge pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |