CN202991411U - Unloading non-return valve for shot blasting machine dust collector - Google Patents
Unloading non-return valve for shot blasting machine dust collector Download PDFInfo
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- CN202991411U CN202991411U CN 201220700936 CN201220700936U CN202991411U CN 202991411 U CN202991411 U CN 202991411U CN 201220700936 CN201220700936 CN 201220700936 CN 201220700936 U CN201220700936 U CN 201220700936U CN 202991411 U CN202991411 U CN 202991411U
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Abstract
The utility model relates to an unloading non-return valve for a shot blasting machine dust collector, comprising a valve body, a non-return valve, a sequence valve and a reversing valve, with the latter three being integrated on the valve body. One end of the non-return valve is connected to an air compressor through an air inlet pipe, and the other end is connected to a gas tank through an air outlet pipe. The sequence valve is respectively communicated with the non-return valve and the reversing valve, and the reversing valve is connected to a muffler. At the running time, pressure is set through the sequence valve, and the pressure is the work pressure required by air compression in the gas tank. When the compressed air output from the air compressor enables the compressed air in the gas tank to reach to the operating pressure, the sequence valve is opened, the reversing valve is started by airflow, and the air can be directly eliminated by the muffler. Gas feeding to the gas tank is stopped, and at this time, the non-return valve is closed. Compared with the prior art, the unloading non-return valve for a shot blasting machine dust collector is simple in structure and easy in processing.
Description
Technical field
The utility model relates to unloading one-way valve, especially relates to a kind of shot-blasting machine vacuum cleaner unloading one-way valve.
Background technique
At present; the discharge capacity of the Moveable industrial dust exhauster air compressor used of domestic tyre reverse gas cleaning system is small-sized air compressor basically; exhaust pressure is controlled and regulated to the employing Pnenmatic automatic switch; air pressure in gas holder has arrived the shutdown pressure that pressure relay is set; air compressor motor shuts down under the control of switch automatically; when the start pressure that the gas holder internal pressure is set lower than pressure relay, switch can be controlled air compressor motor is started, and makes air compressor again carry out inflation work.This mode plays energy-conservation effect to a certain extent, if the limitation capacity one that gas holder is received equipment but on-the-spot gas consumption is large regularly, the startup of air compressor can become frequently, and is large to the damage of motor, and increases on the contrary and consume energy; And poor for the natural pressure that overcomes baroswitch, Compressor Discharge Pressure must surpass 0.25～0.35Mpa of equipment Minimum requirements pressure, and the running of this superpressure, is also that the compressor air-discharging resistance is large, back pressure is large etc., causes the fundamental cause of mechanical deterioration.
The applicant sees also on some vacuum cleaner that also a kind of method is, adopt relief valve to guarantee Security of the system, this kind mode advantage is the working pressure that can guarantee the gas holder compressed air, but it is exactly that air compressor is always in work with pressure that defective is clearly arranged, because this class vacuum cleaner is long-term work, so just need to carry out maintenance frequently to air compressor, otherwise its probability that breaks down can be very high.
for this reason, adopted a kind of unloading one-way valve to carry out off-load on some air compressor system, say the unloading one-way valve of disclosed a kind of air compressor for the patent of invention of CN 2199389Y as notice of authorization number, this valve can replace Pnenmatic automatic switch on mini air compressor, but complex structure, components and parts used are many, there is copper pipe to be connected complicated the connection with the mechanical lever switch, when reaching compresser cylinder to the pressurized air that one-way valve connects of prescribing a time limit, can not drain disorderly closedown air pressure, if in the time of need starting shooting again, need manual operations to lose heart, as deal with improperly, can damage motor and compressor.And for example notice of authorization number is said the unloading one-way valve of disclosed a kind of air compressor for the patent of invention of CN 1896574A, this valve is in the cards from principle, but on the preparation process of reality and function, there are following two defectives in this valve, the one, poor reliability, rubber seal and disappointing groove and air inlet duct have relative movement, and this is easy to make Sealing to damage, seal failure, the 2nd, the pressure unloading of valve can not be adjusted.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of simple in structure in order to overcome the defective that above-mentioned prior art exists, and easy processing, level of integration are high, the shot-blasting machine vacuum cleaner unloading one-way valve that volume is little, reliable, easy to maintenance.
The purpose of this utility model can be achieved through the following technical solutions:
a kind of shot-blasting machine vacuum cleaner unloading one-way valve, it is characterized in that, this unloading one-way valve comprises valve body, and be integrated in one-way valve on valve body, sequence valve and selector valve, described one-way valve one end connects air compressor by suction tude, the other end connects gas holder by steam outlet pipe, described sequence valve is communicated with respectively one-way valve and selector valve, selector valve joint noise reduction device, during work, by the sequence valve setting pressure, this pressure is the working pressure of gas holder pressurized air demand, when the pressurized air of air compressor output makes pressurized air in gas holder reach working pressure, sequence valve is opened, air-flow starts selector valve, air is directly got rid of by baffler, stop inflating to gas holder, at this moment, closed check valve.
described one-way valve comprises end socket a, spring c, spring guide and check ring, one-way valve one end is provided with the air inlet threaded coupling, the other end is provided with the threaded coupling of giving vent to anger, described air inlet threaded coupling one end connects suction tude, the other end is by end socket a sealing, form air cavity a, described threaded coupling one end of giving vent to anger connects steam outlet pipe, form air cavity b, the other end is provided with draw-in groove, described check ring is stuck in draw-in groove fixing, spring guide is fixed on check ring, described spring c one end is enclosed within on spring guide, the other end is pressed on end socket a, end socket a relies on the pressure of spring c to be pressed in air inlet threaded coupling outlet port.
Described sequence valve comprises lining, steel ball, packing ring, copper sheathing, packing ring thimble, nut sleeve, locking nut, spring a and adjusting nut cover; Described lining) be communicated with air cavity b, described steel ball one end and lining are close to and seal, and the other end is compressed by the packing ring thimble, described copper sheathing is set on the packing ring thimble, and with the steel ball Spielpassung, form air cavity c, be pressed with packing ring between copper sheathing and valve body, nut sleeve locking is pressed on copper sheathing, the adjusting nut cover is screwed in nut sleeve, and packing ring thimble and spring a are contained in the adjusting nut cover, by the pressure of spring a, the packing ring thimble can pressed steel ball all the time, locking nut locking adjusting nut cover.
Described selector valve comprises plug a, piston, seal ring, end socket b, the end socket cover, spring b and plug b, wherein, plug a and plug b are blocked in respectively selector valve two ends, piston is positioned at selector valve inside, and and plug a between form air cavity d, seal ring is enclosed within the annular groove of piston, plays seal action; Plug b is pressing spring b, and another side pressure of spring b the end socket cover, and the end socket casing pressure end socket b, is provided with the gap between end socket b and valve body, forms air cavity e.
The relief opening joint noise reduction device of described selector valve, and and baffler between form air cavity f.
Described air cavity c communicates all the time with air cavity d, and air cavity a communicates all the time with air cavity e.
Under reset condition, namely enter under the valve body state without any pressurized air, air cavity a does not communicate with air cavity b, and air cavity b does not communicate with air cavity c, and air cavity e does not communicate with air cavity f;
in working order, enter air cavity a from the defeated next pressurized air of air compressor, pressurized air overcomes the pressure of spring c and pushes end socket a open, then pressurized air outputs to gas holder through air cavity b, air pressure in gas holder rises when reaching working pressure, pressurized air in air cavity b overcomes the pressure of spring a, push steel ball open, enter air cavity e, then, pressurized air in air cavity c can enter by the passage of valve body air cavity d, and push end socket b open by the pressure that piston overcomes spring b, make air cavity e and air cavity f be connected, pressurized air will directly export through baffler by off-load and discharge atmosphere.
Compared with prior art, the utlity model has following advantage:
One, simple in structure, easy processing.The unloading one-way valve that the utility model provides mainly is comprised of a valve body and some parts simple in structure, and processing is without specific (special) requirements.
Two, level of integration is high, and volume is little.The unloading one-way valve that the utility model provides is comprised of three valves from the principle, interacts, and realizes the function described in literary composition, can be arranged in limited space.
Three, reliable operation, pressure is easy to adjust.The opening and closing action of unloading one-way valve provided by the utility model, by the spring acting in conjunction in compressed-air actuated pressure and valve body, simple and reliable.The adjustment of the pressure unloading of valve only need be regulated the adjusting nut cover and get final product, and after adjusting to required pressure, the adjusting nut cover locking, the pressure unloading of valve can remain on setting value with locking nut.
Four, dismounting, installation are easily, and be easy to maintenance.Removing and installing of valve need not special tool(s), and unique wear-out part is exactly the O RunddichtringO on piston, when safeguarding, only need back out plug, takes out piston namely replaceable, and it is quite convenient to safeguard.
Description of drawings
Fig. 1 is the schematic diagram of unloading one-way valve of the present utility model;
Fig. 2 is the utility model unloading one-way valve structural representation;
Fig. 3 is the A-A sectional view of Fig. 2.
In figure: 1, valve body, 2, chock plug a, 3, lining, 4, steel ball, 5, copper backing, 6, copper sheathing, 7, nut sleeve, 8, the packing ring thimble, 9, spring a, 10, locking nut, 11, the adjusting nut cover, 12, plug a, 13, piston, 14, seal ring, 15, baffler, 16, end socket b, 17, end socket cover, 18, spring b, 19, plug b, 20, end socket a, 21, spring c, 22, spring guide, 23, circlip, 24, chock plug b;
101-air cavity a, 102-air cavity b, 103-air cavity c, 104-air cavity d, 105-air cavity e, 106-air cavity f;
M-air compressor, N-gas holder, D-one-way valve, S-sequence valve, H-selector valve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment 1
as described in Figure 1, a kind of shot-blasting machine vacuum cleaner unloading one-way valve, this unloading one-way valve comprises valve body 1, and be integrated in one-way valve D on valve body, sequence valve S and selector valve H, described one-way valve D one end connects air compressor M by suction tude, the other end connects gas holder N by steam outlet pipe, described sequence valve S is communicated with respectively one-way valve D and selector valve H, selector valve H joint noise reduction device 15, during work, by sequence valve S setting pressure, this pressure is the working pressure of gas holder N pressurized air demand, when the pressurized air of air compressor M output makes pressurized air in gas holder N reach working pressure, sequence valve S opens, air-flow starts selector valve, air is directly got rid of by baffler 15, stop inflating to gas holder, at this moment, closed check valve.
described one-way valve comprises end socket a20, spring c21, spring guide 22 and check ring 23, one-way valve one end is provided with the air inlet threaded coupling, the other end is provided with the threaded coupling of giving vent to anger, described air inlet threaded coupling one end connects suction tude, the other end is by end socket a20 sealing, form air cavity a101, described threaded coupling one end of giving vent to anger connects steam outlet pipe, form air cavity b102, the other end is provided with draw-in groove, described check ring 23 is stuck in draw-in groove fixing, spring guide 22 is fixed on check ring 23, described spring c21 one end is enclosed within on spring guide 22, the other end is pressed on end socket a20, end socket a20 relies on the pressure of spring c21 to be pressed in air inlet threaded coupling outlet port.
Described sequence valve comprises lining 3, steel ball 4, packing ring 5, copper sheathing 6, packing ring thimble 8, nut sleeve 7, locking nut 10, spring a9 and adjusting nut cover 11; Described lining 3 is communicated with air cavity b102, described steel ball 4 one ends and lining 3 are close to and seal, the other end is compressed by packing ring thimble 8, described copper sheathing 6 is set on packing ring thimble 8, and with the steel ball Spielpassung, form air cavity c103, be pressed with packing ring 5 between copper sheathing 6 and valve body, nut sleeve 7 lockings are pressed on copper sheathing 6, adjusting nut cover 11 is screwed in nut sleeve 7, and packing ring thimble 8 and spring a9 are contained in adjusting nut cover 11, by the pressure of spring a9, packing ring thimble 8 can pressed steel ball 4 all the time, locking nut 10 locking adjusting nut covers 11.The sequence valve termination also is provided with chock plug b24, and the side is provided with chock plug a2.
Described selector valve comprises plug a12, piston 13, seal ring 14, end socket b16, end socket cover 17, spring b18 and plug b19, wherein, plug a12 and plug b19 are blocked in respectively selector valve two ends, piston 13 is positioned at selector valve inside, and and plug a12 between form air cavity d104, seal ring 14 is enclosed within the annular groove of piston 13, plays seal action; Plug b19 is pressing spring b18, and another side pressure of spring b18 end socket cover 17, and the end socket casing pressure end socket b16, is provided with the gap between end socket b16 and valve body, forms air cavity e105.
The relief opening joint noise reduction device of described selector valve, and and baffler between form air cavity f106.
Described air cavity c103 communicates all the time with air cavity d104, and air cavity a101 communicates all the time with air cavity e105.
Under reset condition, namely enter under the valve body state without any pressurized air, air cavity a101 does not communicate with air cavity b102, and air cavity b102 does not communicate with air cavity c103, and air cavity e105 does not communicate with air cavity f106;
in working order, enter air cavity a101 from the defeated next pressurized air of air compressor by suction tude, pressurized air overcomes the pressure of spring c21 and pushes end socket a20 open, then pressurized air outputs to gas holder through air cavity b102 by steam outlet pipe, air pressure in gas holder constantly rises, when reaching working pressure, pressurized air in air cavity b102 overcomes the pressure of spring a9, push steel ball 4 open, (steel ball 4 is pressing copper sheathing 6 and sealing to form air cavity 103 to enter air cavity c103, the interior air pressure of gas holder this moment is the pressure unloading that unloading one-way valve is set), then, pressurized air in air cavity c103 can enter by the passage of valve body air cavity d104, and push end socket b16 open by the pressure that piston 13 overcomes spring b18, make air cavity e105 and air cavity f106 be connected, and air cavity a101 is connected by the passage in valve body all the time with air cavity e105, also just the air cavity a101 of this moment of meaning is connected with air cavity f106, and air cavity f106 exports communicate (in the off-load outlet, baffler being housed) with off-load, pressurized air in air cavity 101a will directly export through baffler 15 by off-load and discharge atmosphere so, air pressure in air cavity a101 is almost nil, pressure due to spring c21, end socket 20 resets.At this moment, air compressor no-load running has realized the function of unloading one-way valve.
At this moment, the air pressure in air cavity b102, air cavity c103 and air cavity d104 and gas holder equates.
When the air pressure of gas holder drops to certain pressure, pressure-acting due to spring a9, steel ball 4 resets, pressurized air in air cavity c103 is by the Bas Discharged atmosphere between packing ring thimble 8 and copper sheathing 6, air cavity c103 air pressure makes zero, and air cavity d104 air pressure also is zero, and then end socket b16 relies on spring 18 to reset, air cavity e105 and air cavity f106 separate, and off-load finishes.Pressurized air overcomes the pressure of spring c21 and pushes end socket 20 open, and air compressor is given the gas holder gas transmission again.
Claims (7)
1. shot-blasting machine vacuum cleaner unloading one-way valve, it is characterized in that, this unloading one-way valve comprises valve body, and be integrated in one-way valve, sequence valve and selector valve on valve body, described one-way valve one end by suction tude connect air compressor, the other end connects gas holder by steam outlet pipe, described sequence valve is communicated with respectively one-way valve and selector valve, selector valve joint noise reduction device.
2. a kind of shot-blasting machine vacuum cleaner unloading one-way valve according to claim 1, it is characterized in that, described one-way valve comprises end socket a (20), spring c (21), spring guide (22) and check ring (23), one-way valve one end is provided with the air inlet threaded coupling, the other end is provided with the threaded coupling of giving vent to anger, described air inlet threaded coupling one end connects suction tude, the other end is by end socket a (20) sealing, form air cavity a (101), described threaded coupling one end of giving vent to anger connects steam outlet pipe, form air cavity b (102), the other end is provided with draw-in groove, described check ring (23) is stuck in draw-in groove fixing, spring guide (22) is fixed on check ring (23), described spring c (21) one ends are enclosed within on spring guide (22), the other end is pressed on end socket a (20), end socket a (20) relies on the pressure of spring c (21) to be pressed in air inlet threaded coupling outlet port.
3. a kind of shot-blasting machine vacuum cleaner unloading one-way valve according to claim 2, it is characterized in that, described sequence valve comprises lining (3), steel ball (4), packing ring (5), copper sheathing (6), packing ring thimble (8), nut sleeve (7), locking nut (10), spring a (9) and adjusting nut cover (11), described lining (3) is communicated with air cavity b (102), described steel ball (4) one ends and lining (3) are close to and seal, the other end is compressed by packing ring thimble (8), described copper sheathing (6) is set on packing ring thimble (8), and with the steel ball Spielpassung, form air cavity c (103), be pressed with packing ring (5) between copper sheathing (6) and valve body, nut sleeve (7) locking is pressed on copper sheathing (6), adjusting nut cover (11) is screwed in nut sleeve (7), packing ring thimble (8) and spring a (9) are contained in adjusting nut cover (11), pressure by spring a (9), packing ring thimble (8) can pressed steel ball (4) all the time, locking nut (10) locking adjusting nut cover (11).
4. a kind of shot-blasting machine vacuum cleaner unloading one-way valve according to claim 3, it is characterized in that, described selector valve comprises plug a (12), piston (13), seal ring (14), end socket b (16), end socket cover (17), spring b (18) and plug b (19), wherein, plug a (12) and plug b (19) are blocked in respectively selector valve two ends, piston (13) is positioned at selector valve inside, and and plug a (12) between form air cavity d (104), seal ring (14) is enclosed within the annular groove of piston (13), play seal action, plug b (19) is pressing spring b (18), and another side pressure of spring b (18) end socket cover (17), and the end socket casing pressure end socket b (16), is provided with the gap between end socket b (16) and valve body, forms air cavity e (105).
5. a kind of shot-blasting machine vacuum cleaner unloading one-way valve according to claim 4, is characterized in that, the relief opening joint noise reduction device of described selector valve, and and baffler between form air cavity f (106).
6. according to claim 4 or 5 described a kind of shot-blasting machine vacuum cleaner unloading one-way valves, is characterized in that, described air cavity c (103) communicates all the time with air cavity d (104), and air cavity a (101) communicates all the time with air cavity e (105).
7. a kind of shot-blasting machine vacuum cleaner unloading one-way valve according to claim 6, it is characterized in that, under reset condition, namely enter under the valve body state without any pressurized air, air cavity a (101) does not communicate with air cavity b (102), air cavity b (102) does not communicate with air cavity c (103), and air cavity e (105) does not communicate with air cavity f (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220700936 CN202991411U (en) | 2012-12-17 | 2012-12-17 | Unloading non-return valve for shot blasting machine dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220700936 CN202991411U (en) | 2012-12-17 | 2012-12-17 | Unloading non-return valve for shot blasting machine dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991411U true CN202991411U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220700936 Expired - Lifetime CN202991411U (en) | 2012-12-17 | 2012-12-17 | Unloading non-return valve for shot blasting machine dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991411U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016311A (en) * | 2012-12-17 | 2013-04-03 | 上海抛丸机械设备制造有限公司 | Unloading one-way valve applied to back flushing and dust cleaning system of dust collector |
| CN103758731A (en) * | 2014-01-08 | 2014-04-30 | 奉化意格特机械制造有限公司 | Air compressor emptying valve |
-
2012
- 2012-12-17 CN CN 201220700936 patent/CN202991411U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016311A (en) * | 2012-12-17 | 2013-04-03 | 上海抛丸机械设备制造有限公司 | Unloading one-way valve applied to back flushing and dust cleaning system of dust collector |
| CN103016311B (en) * | 2012-12-17 | 2016-02-17 | 上海抛丸机械设备制造有限公司 | A kind of unloading one-way valve being applied to vacuum cleaner reverse gas cleaning system |
| CN103758731A (en) * | 2014-01-08 | 2014-04-30 | 奉化意格特机械制造有限公司 | Air compressor emptying valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
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| CX01 | Expiry of patent term |