CN204419596U - A kind of outer counterweight type suction valve - Google Patents
A kind of outer counterweight type suction valve Download PDFInfo
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- CN204419596U CN204419596U CN201420651780.1U CN201420651780U CN204419596U CN 204419596 U CN204419596 U CN 204419596U CN 201420651780 U CN201420651780 U CN 201420651780U CN 204419596 U CN204419596 U CN 204419596U
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- outer counterweight
- valve
- suction valve
- safety check
- cylinder shape
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Abstract
The utility model relates to a kind of outer counterweight type suction valve, its mainly form comprise hollow cylinder shape valve, air inlet rectification grid, flow-disturbing net, flowmeter sensor, clipping outer counterweight, outer counterweight shield, rotary type check valve plate, check valve plate rotating shaft, bearing.Air inlet rectification grid and flow-disturbing net are arranged on valve body inlet side successively, after intake flow sensor is arranged on flow-disturbing net, to ensure that described suction valve has stable charge flow rate measurement function.Safety check rotating shaft only has one end to stretch out cylinder shape valve, and the other end is positioned at cylinder shape valve.Clipping outer counterweight is fixed on the external part of safety check rotating shaft, and forms rotatable parts with rotary type safety check, and safety check rotating shaft external part is sealed by O type circle.Described rotatable parts are rotated when compressor startup-shutdown by two bearings at safety check rotating shaft two ends.Outer counterweight shield and cylinder shape valve are coaxially installed, and are fixed on cylinder shape valve by hexagon socket head cap screw.The outer counterweight type suction valve of the utility model patent, structure is simple, valve body casting rate is very high, overhauls very convenient, circulating resistance is little, air inlet is stable, long service life, and has charge flow rate measurement function, therefore, suction valve of the present utility model has good economical and practical value.
Description
Technical field
The utility model belongs to compressor technical field of air inlet, especially for the suction valve of permanent-magnetic variable frequency screw compressor.
Background technique
Suction valve be air compressor system one of critical component, its controls the air inflow of air compressor.Suction valve is made up of valve body, rotary type safety check, the butterfly valve controlling flow and control cylinder.Rotary type safety check has and carries counterweight and fluorine rubber cushion seal circle, compressor air suction during start, and under the effect of pressure reduction, rotary type safety check is opened rapidly; When the compressor is shut down; pressure differential collapses; the recoil of the gravity and compressor air-inlet cavity pressurized gas out that carry counterweight by rotary type safety check acts on; rotary type safety check can cut out rapidly; and the ring surface of rotary type safety check and valve body contact has and to cushion and the fluorine rubber of seal action is slow enclose, thus guarantee do not have compressor shutdown to tell oil and the phenomenon of reversing.Therefore, intaking valve structure and function directly can affect the safety and reliability that air compressor runs, and the structure of suction valve also affects the difficulty of its manufacturing.
Traditional air compressor suction valve often adopt elastic element control spool, defect is that elastic element easily produces fatigue, and easily damaged parts is many, and leak point is many, consumptive material consuming time and the life-span short.On the other hand, traditional suction valve does not arrange flow transducer, is unfavorable for the control of suction valve for air inflow, and can not show the intuitive of variable-frequency control technique in compressor flowrate controls.
Chinese Patent Application No. 200820056839.7 discloses " air compressor suction valve ", together with being designed by air inlet valve body, adopt integral casting process, and rotary type safety check and counterweight also adopts integrally casting technique in this patent with balancing weight room.The advantage of this model utility " air compressor suction valve " does not adopt elastic element to control safety check, and reliability is high; But, its defect mainly on air inlet valve body for rotary type safety check carries the balancing weight cavity that counterbalance design protrudes, and the structure of this complexity makes suction valve valve body casting rate very low.
Summary of the invention
The purpose of this utility model is to provide a kind of outer counterweight type suction valve, to solve the above-mentioned defect that prior art exists.
For achieving the above object, the technical solution adopted in the utility model is: a kind of outer counterweight type suction valve, comprise the cylinder shape valve of hollow, air inlet rectification grid, flow-disturbing net, flowmeter sensor, clipping outer counterweight, outer counterweight shield, rotary type check valve plate, safety check rotating shaft, bearing, the flow-disturbing trip off the net at described suction valve suction port place is provided with intake flow sensor.
Related content in technique scheme is explained as follows:
1., in such scheme, in described suction valve, to only have one end to stretch out cylinder valve external in the safety check rotating shaft of rotary type safety check, and described external part is sealed by O type.
2., in such scheme, the clipping outer counterweight in described suction valve on the external part of safety check rotating shaft, and forms rotatable parts with rotary type safety check by screw fastening.
3. in such scheme, the counterbalance design of the rotary type safety check of described suction valve is in the outside of cylinder shape valve, the outer counterweight structure of described rotary type safety check makes air inlet valve body be reduced to the inside and outside circle column construction of two sections coaxial line, and the simple cylinder shape valve of described structure drastically increases the casting rate of valve body.
4. in such scheme, the cylinder shape valve of described suction valve is coaxially installed with outer counterweight shield, described outer counterweight shield prevents the interference by other part in rotation process of clipping outer counterweight, and described outer counterweight shield is fixed on outside valve body by a hexagon socket head cap screw.
Working principle of the present utility model and advantage as follows: outer counterweight type suction valve of the present utility model, its mainly form comprise hollow cylinder shape valve, air inlet rectification grid, flow-disturbing net, flowmeter sensor, clipping outer counterweight, outer counterweight shield, rotary type check valve plate, check valve plate rotating shaft, bearing.Air inlet rectification grid and flow-disturbing net are arranged on valve body inlet place successively, after intake flow sensor is arranged on flow-disturbing net, to ensure that described suction valve has stable charge flow rate measurement function.Safety check rotating shaft in described suction valve only has one end to stretch out cylinder shape valve, and the other end is positioned at cylinder shape valve.Clipping outer counterweight steps up by screw the external part being fixed on safety check rotating shaft, and forms rotatable parts with rotary type safety check, and safety check rotating shaft external part is sealed by O type circle.Described rotatable parts are rotated when compressor startup-shutdown by two bearings at safety check rotating shaft two ends.The bearing at safety check rotating shaft external part place adopts circlip for hole to be fixed in the bearing bore of valve body.Outer counterweight shield and cylinder shape valve are coaxially installed, and are fixed on cylinder shape valve by hexagon socket head cap screw.
When air compressor is shut down, the pressurized gas of compressor cavity inside go out intakeport, and under the effect of recoil air-flow, rotary type check valve plate and valve body close, and are blocked by upper and lower two chambers, namely gas-entered passageway is isolated from the outside, and prevents oil gas in unit to recoil out suction port; When air compressor starts, due to the rotation of compressor, the both sides of rotary type check valve plate are made to produce pressure reduction, under differential pressure action, rotary type check valve plate rotates, INO, gas enters in valve body after by rectification grid and flow-disturbing net, and air-flow is through intake flow sensor sensor output flow signal.
Compared to existing technologies, outer counterweight type suction valve of the present utility model, structure is simple, valve body casting rate is high, and maintenance is convenient, and circulating resistance is little, air inlet is stable, and reliability is high, long service life, and has charge flow rate measurement function.Therefore there is good economical and practical value.
Accompanying drawing explanation
Fig. 1, Fig. 2 are the structure sectional view of outer counterweight type suction valve of the present utility model;
Fig. 3 is that safety check rotating shaft external part and outer bearing are located and sealed structural representation;
Fig. 4 is rotary type safety check, clipping outer counterweight, safety check rotating axis component schematic diagram;
Fig. 5 is the normal axomometric drawing of outer counterweight type suction valve of the present utility model not with outer counterweight shield;
Fig. 6 is the normal axomometric drawing of outer counterweight type suction valve of the present utility model.
In above accompanying drawing: 1, cylinder shape valve; 2, rotary type safety check; 3, safety check rotating shaft; 4, clipping outer counterweight; 5, screw; 6, outer counterweight shield; 7, flow transducer; 8, flow-disturbing net; 9, rectification grid; 10, Screw; 11, inner bearing; 12, outer bearing; 13, O RunddichtringO; 14, circlip for hole; 15, rubber ring.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: the present embodiment, under the prerequisite of technical solutions of the utility model, gives concrete mode of execution and operating process.
As shown in Figure 1, outer counterweight type suction valve of the present utility model comprises the cylinder shape valve 1 of hollow, air inlet rectification grid 9, flow-disturbing net 8, flowmeter sensor 7, clipping outer counterweight 4, outer counterweight shield 6, rotary type check valve plate 2, safety check rotating shaft 3, bearing 11,12.Described suction valve ingress is provided with air inlet rectification grid 9 and flow-disturbing net 8 successively, is provided with charge flow rate flow transducer 7, to measure compressor air inflow in the downstream of flow-disturbing net 8.
As shown in Figure 2, the safety check rotating shaft 3 in described suction valve only has one end to stretch out outside cylinder shape valve 1, and described axle external part is sealed by O type, makes the sealing of suction valve improve like this.
As shown in Figure 3, safety check rotating shaft 3 is designed with an axle collar, described collar outer diameter is greater than the endoporus of outer bearing 12, as long as hold by circlip for hole 14 positions outer shaft the effect that 12 just can reach location safety check rotating shaft 3 so simultaneously.
As shown in Figure 4, the clipping outer counterweight 4 in described suction valve is fastened on the external part of safety check rotating shaft 3 by screw 10, and forms rotatable parts with rotary type safety check 2.
As described in figures 1 and 5, the clipping outer counterweight 4 of the rotary type safety check 2 of described suction valve designs in the outside of cylinder shape valve 1, described this outer counterweight structure makes air inlet valve body 1 be reduced to the inside and outside circle column construction of two sections coaxial line, and the simple cylinder shape valve 1 of described structure drastically increases the casting rate of valve body.
As shown in figs. 1 and 6, the cylinder shape valve 1 of described suction valve is coaxially installed with outer counterweight shield 6, described outer counterweight shield 6 prevents the interference by other part in rotation process of clipping outer counterweight 4, and described outer counterweight shield 5 is fixed on outside valve body 1 by a hexagon socket head cap screw 10.
Principle of the present utility model is as follows: when air compressor is shut down, the pressurized gas of compressor cavity inside go out intakeport, under the effect of recoil air-flow, rotary type check valve plate and valve body close, upper and lower two chambers are blocked, namely gas-entered passageway is isolated from the outside, and prevents oil gas in unit to recoil out suction port; When air compressor starts, due to the rotation of compressor, the both sides of rotary type check valve plate are made to produce pressure reduction, under differential pressure action, rotary type check valve plate rotates, INO, gas enters in valve body after by rectification grid and flow-disturbing net, and air-flow is through intake flow sensor sensor output flow signal.
Compared to existing technologies, outer counterweight type suction valve of the present utility model, structure is simple, valve body casting rate is high, and maintenance is convenient, and circulating resistance is little, air inlet is stable, and reliability is high, long service life, and has charge flow rate measurement function.Therefore there is good economical and practical value.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (9)
1. an outer counterweight type suction valve, comprise the cylinder shape valve (1) of hollow, air inlet rectification grid (9), flow-disturbing net (8), flowmeter sensor (7), clipping outer counterweight (4), outer counterweight shield (6), rotary type check valve plate (2), safety check rotating shaft (3), bearing (11,12), it is characterized in that: the flow-disturbing trip off the net at described suction valve suction port place is provided with intake flow sensor (7).
2. outer counterweight type suction valve according to claim 1, it is characterized in that, in described suction valve, the safety check rotating shaft (3) of rotary type safety check (2) only has one end to stretch out cylinder shape valve (1) outward, and described external part is sealed by O type.
3. outer counterweight type suction valve according to claim 1 and 2, it is characterized in that, clipping outer counterweight (4) in described suction valve is fastened on the external part of safety check rotating shaft (3) by screw (10), and forms rotatable parts with rotary type safety check (2).
4. outer counterweight type suction valve according to claim 1 and 2, it is characterized in that, the counterweight (4) of the rotary type safety check (2) of described suction valve designs the outside in cylinder shape valve (1), the outer counterweight structure of described rotary type safety check (2) makes air inlet valve body (1) be reduced to the inside and outside circle column construction of two sections coaxial line, and the simple cylinder shape valve of described structure (1) drastically increases the casting rate of valve body.
5. outer counterweight type suction valve according to claim 3, it is characterized in that, the counterweight (4) of the rotary type safety check (2) of described suction valve designs the outside in cylinder shape valve (1), the outer counterweight structure of described rotary type safety check (2) makes air inlet valve body (1) be reduced to the inside and outside circle column construction of two sections coaxial line, and the simple cylinder shape valve of described structure (1) drastically increases the casting rate of valve body.
6. outer counterweight type suction valve according to claim 1 and 2, it is characterized in that, the cylinder shape valve (1) of described suction valve is coaxially installed with outer counterweight shield (6), described outer counterweight shield (6) prevents the interference by other part in rotation process of clipping outer counterweight (4), and described outer counterweight shield (5) is fixed on valve body (1) outside by a hexagon socket head cap screw (10).
7. outer counterweight type suction valve according to claim 3, it is characterized in that, the cylinder shape valve (1) of described suction valve is coaxially installed with outer counterweight shield (6), described outer counterweight shield (6) prevents the interference by other part in rotation process of clipping outer counterweight (4), and described outer counterweight shield (5) is fixed on valve body (1) outside by a hexagon socket head cap screw (10).
8. outer counterweight type suction valve according to claim 4, it is characterized in that, the cylinder shape valve (1) of described suction valve is coaxially installed with outer counterweight shield (6), described outer counterweight shield (6) prevents the interference by other part in rotation process of clipping outer counterweight (4), and described outer counterweight shield (5) is fixed on valve body (1) outside by a hexagon socket head cap screw (10).
9. outer counterweight type suction valve according to claim 5, it is characterized in that, the cylinder shape valve (1) of described suction valve is coaxially installed with outer counterweight shield (6), described outer counterweight shield (6) prevents the interference by other part in rotation process of clipping outer counterweight (4), and described outer counterweight shield (5) is fixed on valve body (1) outside by a hexagon socket head cap screw (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651780.1U CN204419596U (en) | 2014-11-04 | 2014-11-04 | A kind of outer counterweight type suction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651780.1U CN204419596U (en) | 2014-11-04 | 2014-11-04 | A kind of outer counterweight type suction valve |
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| Publication Number | Publication Date |
|---|---|
| CN204419596U true CN204419596U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420651780.1U Active CN204419596U (en) | 2014-11-04 | 2014-11-04 | A kind of outer counterweight type suction valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564689A (en) * | 2014-11-04 | 2015-04-29 | 苏州艾柏特精密机械有限公司 | Outer counter weight air intake valve |
| CN109790837A (en) * | 2016-07-20 | 2019-05-21 | 阿特拉斯·科普柯空气动力股份有限公司 | Check valve assembly |
-
2014
- 2014-11-04 CN CN201420651780.1U patent/CN204419596U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564689A (en) * | 2014-11-04 | 2015-04-29 | 苏州艾柏特精密机械有限公司 | Outer counter weight air intake valve |
| CN109790837A (en) * | 2016-07-20 | 2019-05-21 | 阿特拉斯·科普柯空气动力股份有限公司 | Check valve assembly |
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