CN203516935U - Pneumatic motor diaphragm valve - Google Patents

Pneumatic motor diaphragm valve Download PDF

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Publication number
CN203516935U
CN203516935U CN201320609393.7U CN201320609393U CN203516935U CN 203516935 U CN203516935 U CN 203516935U CN 201320609393 U CN201320609393 U CN 201320609393U CN 203516935 U CN203516935 U CN 203516935U
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CN
China
Prior art keywords
valve
pneumatic motor
diaphragm
lining
rotor
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
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CN201320609393.7U
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Chinese (zh)
Inventor
林廷祥
白福丰
裘旭升
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XIAMEN SANIDENG PLASTICS INDUSTRY Co Ltd
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XIAMEN SANIDENG PLASTICS INDUSTRY Co Ltd
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Priority to CN201320609393.7U priority Critical patent/CN203516935U/en
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Publication of CN203516935U publication Critical patent/CN203516935U/en
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Abstract

The utility model discloses a pneumatic motor diaphragm valve. The pneumatic motor diaphragm valve comprises a valve body, a valve cover, a diaphragm, a valve rod and a driving device. The valve cover is connected to the valve body, the diaphragm is connected between the valve body and the valve cover, and the valve rod can slide relative to the valve cover and is connected with the diaphragm. The driving device comprises a pneumatic motor and a bush. The pneumatic motor is provided with a power output shaft, the bush can rotate relative to the valve cover, and the power output shaft is in transmission connection with the bush so as to drive the bush to rotate. The bush is provided with internal threads and the valve rod is provided with external threads so that the bush can be connected with the valve rod in a threaded mode. The pneumatic motor diaphragm valve has the following advantages that the pneumatic motor is used as a driving part so as to realize opening and closing of the diaphragm valve or/and the flow adjusting function, the pneumatic motor diaphragm valve is small in size, safe and reliable, and normal operation can be achieved even if the pressure is relatively low; the self-locking function is achieved due to thread transmission so that the diaphragm valve can maintain the original state even if an air source is abnormal; and the opening degree of the diaphragm valve can be adjusted at will.

Description

A kind of pneumatic motor membrane valve
Technical field
The utility model relates to a kind of pneumatic motor membrane valve.
Background technique
Current " pneumatic diaphragm valve " on the market, comprise valve body, valve gap, diaphragm, valve rod and drive unit, described valve gap is installed in valve body, described diaphragm is connected to valve body and valve cover chamber, described valve rod relatively valve gap slides and connects diaphragm, described drive unit adopts cylinder, and piston and the valve rod of described cylinder are affixed, by cylinder, drive valve stem slides to realize the open and close function of membrane valve.Adopt the product of this kind of scheme to there is following shortcoming:
1, because the piston cross-section of cylinder is long-pending large, make whole pneumatic diaphragm valve volume large.
2,, when source of the gas is abnormal, when air pressure diminishes or disappears, this kind of pneumatic diaphragm valve can be become closed condition or be become opening state from closed condition from opening state suddenly, makes production unit cause danger or loss.
3, only there is standard-sized sheet and complete shut-down two states, be difficult for realizing valve opening size adjustable.
4,, when air pressure disappears, " pneumatic diaphragm valve " cannot be controlled by manual mode.
5, because cylinder is straight line motion, valve switch can only be open soon, quick closing valve, thereby easily cause the impact of water hammer of whole pipeline, there is potential safety hazard.
Model utility content
The utility model provides a kind of pneumatic motor membrane valve, and it has overcome the existing deficiency of pneumatic diaphragm valve in background technique.
The technological scheme adopting that the utility model solves its technical problem is:
A kind of pneumatic motor membrane valve, comprise valve body, valve gap, diaphragm, valve rod and drive unit, described valve gap is installed in valve body, and described diaphragm is connected to valve body and valve cover chamber, described valve rod relatively valve gap slides and connects diaphragm, described drive unit comprises pneumatic motor and lining, and described pneumatic motor has pto=power take-off, and described lining can rotate relative to valve gap, the described pto=power take-off lining that is in transmission connection, described lining is established internal thread, and described valve rod is established outside thread, the described lining valve rod that is spirally connected.
Among one embodiment, described pneumatic motor comprises:
Rotor, coaxial affixed pto=power take-off and establish radial groove;
Cylinder body, there is inner chamber, comprise contact wall, suction port and the air outlet of inner chamber, described rotor pivot cylinder body and be positioned at inner chamber, described contact wall along the non-circular smoothed curve of being projected as of rotor pivot axis, all permanent equating of line segment that are all connected to smoothed curve through rotor pivot axis and two ends;
Impeller assembly, comprise two relatively affixed blades, the spacing away from edge of described two blades equals above-mentioned line segment length, described impeller assembly be slidably connected radial groove and two blades respectively correspondence be positioned at pivot joint axis both sides, described two blades away from edge, be all contacted with contact wall, by two blades, make inner chamber be divided into induction part and outlet gas part, described suction port is connected induction part, and described outlet gas part is connected air outlet; And
Air pressure mechanism, connects suction port and air outlet.
Among one embodiment, described impeller assembly also comprises a solid bar, and described solid bar is fixed between two blades.
Among one embodiment, the described two blades radial groove that is all tightly connected.
Among one embodiment, described contact wall and rotor along in the projection of rotor pivot axis, described rotor peripheries contact with smoothed curve and this contacting point tangent.
Among one embodiment, described cylinder body comprises upper end cap, lower end cap, perisporium and side cover, described upper end cap and lower end cap be the upper and lower two ends of affixed perisporium respectively, described suction port and air outlet are located at perisporium, described side cover is established two impenetrating mouths, and the affixed perisporium of described side cover and two impenetrating mouths are connected respectively suction port and air outlet.
Among one embodiment, the through hole that described perisporium runs through inside and outside also establishing, described through hole is between suction port and air outlet, and fricting strip is established in described through hole; Between described side cover and perisporium, establish sealing gasket, described fricting strip contact sealing gasket, described rotor contact friction bar.
Among one embodiment, described rotor is connected to upper end cap and lower end cap by bearing.
Among one embodiment, described lining is convexly equipped with bulge loop outward, and described lining can rotate from bottom to top through valve gap, and described bulge loop contact, at valve gap, is separately established snap ring clamping lining and is supported by end face, by bulge loop and snap ring, coordinates positioning adapter;
Polygonal section is established at described lining top; Separately establish intermediate gear, described intermediate gear adaptation is socketed in outside the polygonal section of lining, and described pto=power take-off is by the reducing gear intermediate gear that is in transmission connection.
The technical program is compared with background technique, and its tool has the following advantages:
Adopt pneumatic motor as driver part, realize membrane valve unlatching, close or and flow regulating function, can be achieved as follows advantage: a, same size product is compared, have that moment of torsion is large, volume is little, safe and reliable, also can normal running even if air pressure is on the low side; B, screw thread transmission have auto-lock function, and abnormal even if source of the gas occurs, pneumatic diaphragm valve of the present utility model also can keep original state, and membrane valve abnormal start-up can not occur or close phenomenon, thereby avoids the loss of production unit; The torsion that c, membrane valve produce is large, even if air pressure also can normal running in normal half left and right; D, that membrane valve can be realized valve opening is adjustable arbitrarily; E, adopt pneumatic motor, because being rotatablely moves, use screw drive valve switch, therefore, switch at a slow speed, thus pipeline fluid is operated steadily.
Pneumatic motor adopts double-leaf, makes motor configuration simpler, easily processing.
Contact wall along the non-circular smoothed curve of being projected as of rotor pivot axis, all permanent equating of line segment that are all connected to smoothed curve through rotor pivot axis and two ends, the spacing away from edge of two blades equals above-mentioned line segment length, two blades away from edge, be all contacted with contact wall, when double-leaf is rotated with rotor, two air blade relative distance does not change and is close to inboard wall of cylinder block, (traditional, pneumatic motor cylinder inwall is circular to have saved the spring sheet of traditional, pneumatic motor, for making air blade, can be close to inboard wall of cylinder block, adopted chip architecture of the spring), and because there is no the elastic force effect of spring sheet, make the friction of blade and inboard wall of cylinder block less, make air blade more durable.
Contact wall and rotor along in the projection of rotor pivot axis, rotor peripheries contact with smoothed curve and this contacting point tangent, volume is little, rotates smooth.
The through hole that perisporium runs through inside and outside also establishing, through hole is between suction port and air outlet, and fricting strip is established in through hole; Between side cover and perisporium, establish sealing gasket, fricting strip contact sealing gasket, rotor contact friction bar, rotates smooth.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 has illustrated the schematic perspective view of a kind of pneumatic motor membrane valve of a preferred embodiment.
Fig. 2 has illustrated the perspective exploded view of a kind of pneumatic motor membrane valve of a preferred embodiment.
Fig. 3 has illustrated one of the generalized section of a kind of pneumatic motor membrane valve of a preferred embodiment, now in open mode.
Fig. 4 illustrated a preferred embodiment a kind of pneumatic motor membrane valve generalized section two, now in closed condition.
Fig. 5 has illustrated the perspective exploded view of pneumatic motor of a kind of pneumatic motor membrane valve of a preferred embodiment.
Fig. 6 has illustrated the schematic perspective view of pneumatic motor of a kind of pneumatic motor membrane valve of a preferred embodiment.
Fig. 7 has illustrated the schematic top plan view of pneumatic motor of a kind of pneumatic motor membrane valve of a preferred embodiment.
Fig. 8 has illustrated the schematic rear view of pneumatic motor of a kind of pneumatic motor membrane valve of a preferred embodiment.
The master of pneumatic motor that Fig. 9 has illustrated a kind of pneumatic motor membrane valve of a preferred embodiment looks schematic diagram.
Figure 10 has illustrated the elevational schematic view of pneumatic motor of a kind of pneumatic motor membrane valve of a preferred embodiment.
Figure 11 has illustrated the B-B sectional drawing of Fig. 9.
Figure 12 has illustrated the C-C sectional drawing of Fig. 8.
Figure 13 has illustrated the D-D sectional drawing of Fig. 8.
Embodiment
Please refer to Fig. 1 to Figure 13, a kind of pneumatic motor membrane valve, comprise valve body 10, valve gap 20, diaphragm 30, valve rod 40 and drive unit 50, described valve gap 20 is installed in valve body 10, described diaphragm 30 is connected to 20 of valve body 10 and valve gaps, described valve rod 40 relatively valve gap 20 slides and connects diaphragm 30, and described drive unit 50 connects valve rod 40 and slides with the relative valve gap 20 of band ovable valve stem 40, to be with dynamic diaphragm 30 distortion to realize, opens or closes or membrane valve flow control.
Among the present embodiment, described valve body 10 comprises an import 11, outlet 12 and one mount inlet 13, and protuberance 14 is established in the import 11 of described valve body 10 and 12 of outlets, and described mount inlet 13 is between import and outlet 12 and corresponding protuberance 14; Described valve gap 20 can be installed on valve body 10, described diaphragm 30 is between valve body 10 and valve gap 20, by fixing diaphragm 30 peripheries of the attaching between valve body 10 and valve gap 20, make described diaphragm 30 periphery sealing mount inlet 13 peripheries, can by diaphragm 30 distortion make diaphragm 30 sealing contact protuberances 14 so that membrane valve in closed condition, can be by diaphragm 30 away from protuberance 14 so that membrane valve in open mode, and etc. membrane valve flow is not etc. away from distance.Described valve body 10, valve gap 20 and diaphragm 30 structures are as adopted the structure of prior art, but for part drive mechanism is installed in valve gap 20, make outward appearance more attractive in appearance, described valve gap 20 can be: comprise perisporium, described perisporium can comprise part cone wall, described perisporium has lower end mouth and upper end-hole, described lower end mouth attaching valve body 10, and diaphragm is between lower end mouth and mount inlet periphery; In described perisporium, also set firmly a connecting seat 21, described connecting base 21 is for example fixed in perisporium inwall by some spokes is installed in perisporium connecting base 21; Best described perisporium is turret wall, and described connecting base 21 is established rotary hole 22, described rotary hole 22 axis and connecting base 21 deads in line.But not as limit, part drive mechanism also can expose as required, and valve gap also can adopt other structure.
Among the present embodiment, described valve rod sets firmly briquetting 41 40 times, and described briquetting 41 end faces are made as spherical interior surface, and the center of the spherical interior surface of described briquetting 41 is arranged with a shrinkage pool 411, and described shrinkage pool 411 bottom center establish penetration hole 412; The adaptive insertion in penetration hole 412 in described valve rod 40 lower ends, separately establishes lock pin 42 through briquetting 41 and valve rod 40, so that they are fixed together.Described diaphragm 30 centers are convexly equipped with the boss 31 of adaptive shrinkage pool 411, and described boss plays 31 adaptations in shrinkage pool 411, separately set screw 413 and pass from bottom to top diaphragm 30 and be screwed onto valve rod 40 bottoms.Because briquetting 41 end faces are made as spherical interior surface, the diaphragm of therefore fitting, advances or to inside contract stability high, and diaphragm deformation dynamics is reliable and stable.
Described drive unit 50 comprises pneumatic motor 51 and lining 52, described pneumatic motor 51 has pto=power take-off 511, described lining 51 can rotate relative to valve gap 10, described pto=power take-off 511 is in transmission connection lining 52 to drive lining 52 to rotate, described lining 52 is established internal thread, in described valve rod 40, have at least one section to establish outside thread, described lining 52 valve rod 40 that is spirally connected, slides by pto=power take-off rotational band ovable valve stem 40.
Among the present embodiment, described lining 52 is rotatably connected in the rotary hole 22 of connecting base 21, connection between described lining 52 and valve gap for example adopts following structure: the outer bulge loop 521 that is convexly equipped with of described lining 52, described lining 52 can rotate the connecting base 21 through valve gap 20 from bottom to top, described bulge loop 521 contacts are in the bottom surface of the connecting base 21 of valve gap 20, separately establish snap ring 53 clamping linings 521 and be supported by the end face at the connecting base 21 of valve gap 20, with this positioning adapter 521 and connecting base, so that lining can rotate relative to connecting base.
Among the present embodiment, polygonal section 522 is established at described lining 52 tops, for example positive shape changeable; Separately establish intermediate gear 54, described intermediate gear 54 adaptations are socketed in outside the polygonal section 522 of lining 52, and described pto=power take-off 511 is by reducing gear 55 intermediate gear 54 that is in transmission connection.
Described pneumatic motor 51 comprises rotor 512, cylinder body 513, the gentle press mechanism of impeller assembly 514.
The coaxial affixed pto=power take-off 511 of described rotor 512 and establish radial groove, among the present embodiment, described radial groove comprises that two and half grooves 5121 and connect the middle slot 5122 of two halves groove.
Described cylinder body 513 has inner chamber, surrounds the contact wall 5131 of inner chamber, described contact wall 5131 is provided with suction port 5132 and air outlet 5133, described rotor 512 pivot joint cylinder bodies 513 and be positioned at inner chamber, the non-circular smoothed curve that is projected as along rotor 512 pivot joint axis of described contact wall 5131, all line segment S permanent equating that are all connected to smoothed curve through rotor 512 pivot joint axis and two ends are all d.In one preferred version, described contact wall 5131 and rotor 512 along in the projection of rotor 512 pivot joint axis, described rotor 512 peripheries contact with smoothed curve and this contacting point tangent.Best, described suction port and air outlet symmetry are positioned at this tangent both sides.Described cylinder body 513 is fixed in port on valve gap.
Described impeller assembly 514 comprises two relatively affixed blades 5141 and a solid bar 5142, and described solid bar 5142 is fixed in 5141, two blade, and the spacing away from edge of described two blades 5141 equals above-mentioned line segment S length d.Described impeller assembly 514 be slidably connected radial groove and two blades 5141 respectively correspondence be positioned at pivot joint axis both sides, described two blades 5141 radial groove that is all tightly connected.Among the present embodiment, described blade 5141 slips half groove 5121, and described solid bar 5142 slips middle slot 5122.All being contacted with and contacting wall 5131 away from edge of described two blades 5141, makes inner chamber be divided into induction part 515 and outlet gas part 516 by two blades, and described suction port 5132 is connected induction part 515, and described outlet gas part 516 is connected air outlets 5133.As required, also can between solid bar and blade, establish regulating block, by regulating block, can finely tune the spacing of two blades, guarantee blade and contact wall contact.
Described air pressure mechanism, connects suction port 5132 and air outlet 5133.Among the present embodiment, take an impeller assembly and a radial groove is example, but not as limit, as required, the radial groove of a plurality of impeller assemblys and coupling also can be set.
In one preferred version, described cylinder body 513 comprises upper end cap 5134, lower end cap 5135, perisporium 5136 and side cover 5137, Shang Xia 5136 two ends for described upper end cap 5134 and the affixed perisporium of lower end cap 5135 difference, described suction port 5132 and air outlet 5133 are located at perisporium 5136, and described perisporium 5136 inwalls are above-mentioned contact wall 5131.Described side cover 5137 is established two impenetrating mouths, and the affixed perisporium 5136 of described side cover 5137 and two impenetrating mouths are connected respectively suction port 5132 and air outlet 5133.Best, described rotor 512 is connected to upper end cap and lower end cap by bearing, and described bearing for example adopts self oiling bearing, and cost is lower; The sealing of rotor and upper and lower end cap adopts rotor seal pad 5123, and its material is as being Furtulon, and sealing effect is better.
In one preferred version, described blade 5141 and 5121 of half grooves are established runner sealing bar 5143, make sealing effect better.
In one preferred version, the through hole that described perisporium 5136 runs through inside and outside also establishing, described through hole is between suction port 5132 and air outlet 5133, and fricting strip 5138 is established in described through hole; 5136 of described side cover 5137 and perisporiums are established sealing gasket 5139, described fricting strip 5138 contact sealing gaskets 5139, described rotor 512 contact friction bars 5138.
Among the present embodiment, when air pressure mechanism is by suction port air inlet, outlet gas part is given vent to anger, the air pressure of induction part is greater than the air pressure of outlet gas part, promotes blade movable, makes not only radial groove slip relatively of blade, but also relatively rotate, rotor is rotated around axis postive direction; When air pressure, mechanism gives vent to anger by suction port, outlet gas part air inlet, and the air pressure of outlet gas part is greater than the air pressure of induction part, promotes blade movable, makes not only radial groove slip relatively of blade, but also relatively rotates, and rotor is rotated around axis negative direction; During pto=power take-off running, drive intermediate gear to rotate, drive lining to rotate, valve rod is moved up or down, thereby drive diaphragm briquetting to move up or down, thereby make diaphragm be close to protuberance or loose from protuberance, thereby realize unlatching or the closing function of valve, or, adjust flux.
If source of the gas disappears extremely, membrane valve can operate in manual mode with inner hexagon spanner.
As required, separately establish enclosing cover 60, outer housing connects pneumatic motor and attaching valve gap.
The above, it is only the utility model preferred embodiment, therefore can not limit according to this scope that the utility model is implemented, the equivalence of doing according to the utility model the scope of the claims and description changes and modifies, and all should still belong in the scope that the utility model contains.

Claims (9)

1. a pneumatic motor membrane valve, comprise valve body, valve gap, diaphragm, valve rod and drive unit, described valve gap is installed in valve body, described diaphragm is connected to valve body and valve cover chamber, described valve rod relatively valve gap slides and connects diaphragm, it is characterized in that: described drive unit comprises pneumatic motor and lining, described pneumatic motor has pto=power take-off, described lining can rotate relative to valve gap, described pto=power take-off is in transmission connection lining to drive lining to rotate, described lining is established internal thread, and described valve rod is established outside thread, the described lining valve rod that is spirally connected.
2. a kind of pneumatic motor membrane valve according to claim 1, is characterized in that: described pneumatic motor comprises:
Rotor, coaxial affixed pto=power take-off and establish radial groove;
Cylinder body, contact wall, suction port and the air outlet with inner chamber, encirclement inner chamber, described rotor pivot cylinder body and be positioned at inner chamber, described contact wall along the non-circular smoothed curve of being projected as of rotor pivot axis, all permanent equating of line segment that are all connected to smoothed curve through rotor pivot axis and two ends;
Impeller assembly, comprise two relatively affixed blades, the spacing away from edge of described two blades equals above-mentioned line segment length, described impeller assembly be slidably connected radial groove and two blades respectively correspondence be positioned at pivot joint axis both sides, described two blades away from edge, be all contacted with contact wall, by two blades, make inner chamber be divided into induction part and outlet gas part, described suction port is connected induction part, and described outlet gas part is connected air outlet; And
Air pressure mechanism, connects suction port and air outlet.
3. a kind of pneumatic motor membrane valve according to claim 2, is characterized in that: described impeller assembly also comprises a solid bar, and described solid bar is fixed between two blades.
4. a kind of pneumatic motor membrane valve according to claim 2, is characterized in that: the described two blades radial groove that is all tightly connected.
5. a kind of pneumatic motor membrane valve according to claim 2, is characterized in that: described contact wall and rotor along in the projection of rotor pivot axis, described rotor peripheries contact with smoothed curve and this contacting point tangent.
6. a kind of pneumatic motor membrane valve according to claim 2, it is characterized in that: described cylinder body comprises upper end cap, lower end cap, perisporium and side cover, described upper end cap and lower end cap be the upper and lower two ends of affixed perisporium respectively, described suction port and air outlet are located at perisporium, described side cover is established two impenetrating mouths, and the affixed perisporium of described side cover and two impenetrating mouths are connected respectively suction port and air outlet.
7. a kind of pneumatic motor membrane valve according to claim 6, is characterized in that: the through hole that described perisporium runs through inside and outside also establishing, and described through hole is between suction port and air outlet, and fricting strip is established in described through hole; Between described side cover and perisporium, establish sealing gasket, described fricting strip contact sealing gasket, described rotor contact friction bar.
8. a kind of pneumatic motor membrane valve according to claim 6, is characterized in that: described rotor is connected to upper end cap and lower end cap by bearing.
9. according to a kind of pneumatic motor membrane valve described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8, it is characterized in that:
Described lining is convexly equipped with bulge loop outward, and described lining can rotate from bottom to top through valve gap, and described bulge loop contact, at valve gap, is separately established snap ring clamping lining and is supported by end face, by bulge loop and snap ring, coordinates positioning adapter;
Polygonal section is established at described lining top; Separately establish intermediate gear, described intermediate gear adaptation is socketed in outside the polygonal section of lining, and described pto=power take-off is by the reducing gear intermediate gear that is in transmission connection.
CN201320609393.7U 2013-09-29 2013-09-29 Pneumatic motor diaphragm valve Withdrawn - After Issue CN203516935U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320609393.7U CN203516935U (en) 2013-09-29 2013-09-29 Pneumatic motor diaphragm valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320609393.7U CN203516935U (en) 2013-09-29 2013-09-29 Pneumatic motor diaphragm valve

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CN203516935U true CN203516935U (en) 2014-04-02

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CN201320609393.7U Withdrawn - After Issue CN203516935U (en) 2013-09-29 2013-09-29 Pneumatic motor diaphragm valve

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104514912A (en) * 2013-09-29 2015-04-15 厦门三登塑胶工业有限公司 Diaphragm valve of pneumatic motor
CN114320908A (en) * 2020-09-30 2022-04-12 复盛股份有限公司 Spiral compression device and volume regulation and control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104514912A (en) * 2013-09-29 2015-04-15 厦门三登塑胶工业有限公司 Diaphragm valve of pneumatic motor
CN114320908A (en) * 2020-09-30 2022-04-12 复盛股份有限公司 Spiral compression device and volume regulation and control method

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Granted publication date: 20140402

Effective date of abandoning: 20170606