CN102689756A - Novel arch-breaking device - Google Patents
Novel arch-breaking device Download PDFInfo
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- CN102689756A CN102689756A CN2012101881534A CN201210188153A CN102689756A CN 102689756 A CN102689756 A CN 102689756A CN 2012101881534 A CN2012101881534 A CN 2012101881534A CN 201210188153 A CN201210188153 A CN 201210188153A CN 102689756 A CN102689756 A CN 102689756A
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Abstract
The invention belongs to the field of warehouses, and in particular relates to a novel arch-breaking device. The novel arch-breaking device comprises a shell, an exhaust pipe, a cylinder sleeve, a seal plate, a piston and an elastic sleeve, wherein the cylinder sleeve is fixed at one end of the shell; one inner end of the shell is provided with a conical hole, and the sidewall of the shell is provided with a vent hole for communicating an inner space and an outer space of a cavity of the cylinder sleeve; the piston is arranged in the cylinder sleeve, one end of the piston is conical and the other end of the piston is provided with a ventilation main hole; small ventilation holes are radial distributed and are communicated with the ventilation main hole inwards and are communicated with the exterior of the piston outwards; a conical end of the piston is provided with an annular surface; the elastic sleeve is sleeved on the piston and can cover the small ventilation holes; the vent hole is communicated with a cavity and an air-storage cavity in the cylinder sleeve; and one end of the cylinder sleeve towards the shell is connected with the seal plate, and the seal plate is provided with a gas port. The novel arch-breaking device disclosed by the invention has the beneficial effects of short exhaust time, energy source conservation, good arch-breaking effect and simple structure.
Description
Technical field
The invention belongs to the storage field, be specifically related to a kind of novel Arch-Breaking Device that is used for material in the loose storehouse.
Background technology
All will use storage bin in a lot of industry production systems, be used for storing loose material or powder grain material, not only be used for storing, also play the effect that impels material balance and performance homogenizing simultaneously, the application of storage bin is very extensive, and its effect also becomes more and more important.Under the form of Quantity production, feed bin also needs to maximize.At present, domestic large-sized silo can be accomplished 1000～2000m
3, safe, reliable, the steady production of feed bin just seem particularly important.Therefore, the appropriate design of feed bin with use safe and continuous production, improve labour intensity and play a part very important factory.
In the storage bin material receive various factors to influence sometimes compacting is bonded to arch, material can not flow, perhaps can not flow in the part, can not discharge from Hatch Opening, influence is produced.
The Arch-Breaking Device that is widely used at present forms the broken arch of pressurized air, because it is easy to use, pollution-free, so be widely used in the feed bin of bulk materials such as coal, ore, cement, feed, grain.
The Arch-Breaking Device that tradition is used comprises housing, cylinder sleeve, piston, electromagnetic valve, compression spring and freeing pipe, and cylinder sleeve is connected an end of housing; The outer end of cylinder sleeve connects electromagnetic valve, dress piston and compression spring in the cylinder sleeve, and compression spring is near from admission port; Piston is far away from admission port, and the outlet of freeing pipe is fixed on the housing other end, extend in the housing; Piston under the effect of compression spring with tight-lipped be close together of freeing pipe in housing, and become sealing surface.On housing, be provided with intake interface, on intake interface, be in series with the one-way cock of airintake direction.The admission port of described electromagnetic valve is connected with an end of a threeway, and the other two ends of this threeway are connected with source of the gas with the other end of described one-way cock respectively.The Arch-Breaking Device of this structure, outer pipeline more complicated, user installation is safeguarded inconvenient.
What patent 200420064020.7 was described is that a kind of feed bin is used Arch-Breaking Device, and it is characterized in that: the end at a housing is installed an outer cylinder sheath, has pore on the outer cylinder sheath sidewall; An end that on cylinder sleeve, is positioned at jar is installed a ventilation flue and is drawn jar external control cock and source of the gas, is positioned at a jar outer end jam nut is installed; Inner cylinder liner is installed in outer cylinder sheath, have on the inner cylinder liner sidewall with outer cylinder sheath on corresponding pore, inner cylinder liner one end and outer cylinder sheath form sealing, the other end forms with jam nut and seals; Piston is installed in inner cylinder liner, is had pore on the piston side wall, pore communicates on piston side wall pore and the inner cylinder liner; Centre has pore; Centre porosity communicates with sidewall pore and ventilation flue, and piston leans on a jar interior end one spring to be installed, the piston other end and jam nut contact seal; One check valve is installed in the centre pore, is had one to place and to promote the piston ring surface that direction moves in jar under jar interior gaseous tension on the piston; The jam nut endoporus is connected with broken arch tube road.The Arch-Breaking Device of this structure, outer pipeline is fairly simple, but inner structure is but quite complicated.
More than two kinds of described Arch-Breaking Devices of technology, when broken arch, pressurized air need be pushed piston open and discharge from freeing pipe then; Yet piston but is compressed spring and pushes down; Some pressure of pressurized air is to support compression spring, and in other words spring makes piston form throttling action, has hindered flowing of air; Prolong the air exhaustion time, influenced broken arch effect.And when compressed air pressure is reduced to can only keep spring pressure the time, piston just abuts against together with exhaust pipe mouth, and excess pressure is sealed in the housing and can not discharges, and the interior pressure of housing can not play a role fully, causes energy dissipation.
In a word, above-described Arch-Breaking Device, evacuation time is long, and broken arch effect is bad, wastes energy, and structure is more complicated also.
Summary of the invention
The object of the present invention is to provide a kind of evacuation time weak point, energy savings, broken arch novel Arch-Breaking Device effective, simple in structure.Be a kind of novel Arch-Breaking Device, form by housing, freeing pipe, cylinder sleeve, piston, resilient sleeve, closing plate and two position three-way valve.Cylinder sleeve has cylindrical bore, is fixed on housing one end, and cylinder sleeve one end is in housing, and the other end outside.Wherein at an interior end taper hole is arranged, from the nearer end of taper hole pore is arranged on the cylindrical hole sidewall, this pore is communicated with cylinder sleeve chamber interior or exterior space.
Piston is installed in the cylinder sleeve, and the external cylindrical surface of piston cooperates with the inner cylinder face of cylinder sleeve, can inside slide, and piston one end is tapered, when the taper hole that slides into this conical end and cylinder sleeve when fitting together, just can form a pair of sealing surface.The other end of piston has axial ventilation main aperture, is blind hole.Air bleeder is radially-arranged, communicates with the ventilation main aperture inwardly, leads to the piston outside outwardly.Piston upper conical end has a ring surface, when being compressed air pressure on this ring surface, can promote piston direction outside housing and move.
The cyclic spring cover is enclosed within on the piston, relies on less elastic force, can cover air bleeder, as pressurized air from air bleeder when coming, can promote the resilient sleeve distortion easily and open, thereby pressurized air is passed through from the resilient sleeve side.Because air-flow has received resistance, this resilient sleeve has played the effect of throttling in fact.Charge into when gas port has pressurized air, piston is positioned at when the nearer position of gas port, and pressurized air can promote piston away from gas port, fits together until the conical end of piston and the taper hole of cylinder sleeve.
If the air bleeder internal gas pressure is less, resilient sleeve outside air pressure is bigger, and when promptly air had the trend of oppositely passing through, resilient sleeve can cover air bleeder rapidly, makes the air-flow impassabitity, and just air extractor vent and resilient sleeve have formed the effect of one-way throttle valve.
Freeing pipe is fixed on the housing other end, and the end in housing and the end of cylinder sleeve taper hole communicate and connect, and the other end reaches outside the housing, can be connected with other pipeline, causes in the feed bin.Cylinder sleeve, housing and the sealing of the freeing pipe three place of mutually combining are better, and be air tight.The space that is in outside cylinder sleeve and the freeing pipe, is surrounded by housing has again formed air storing cavity.Pore can be communicated with cavity and the air storing cavity in the cylinder sleeve.
An end and the closing plate of cylinder sleeve outside housing links together, and the junction good seal is air tight.Gas port is arranged on the closing plate, and gas port links to each other with two position three-way valve through outer pipeline, and two position three-way valve connects source of the gas.
When piston moved to the cylinder sleeve upper end, conical sealing surface was opened, and air storing cavity, pore, cylinder sleeve inner chamber and freeing pipe are connected together, and the pressurized air in the air storing cavity just can guide in the storage bin through freeing pipe and external pipeline smoothly and discharge.
Above-described two position three-way valve can be a two-position three way magnetic valve, also can be the combination of two-position three way hand valve or a plurality of shutoff valves.
Resilient sleeve is processed by resilient polyurethane, also can use the suitable non-metallic material manufacturing of industrial rubber and other elasticity.
Flange can be arranged in freeing pipe and external pipeline junction, also can use to be threaded.
Cylinder sleeve can use flange to be connected with closing plate, also can use to be threaded.
Tight for the mating face seal that makes cylinder sleeve and piston, on piston, be provided with seal ring.
For piston is slided flexibly, piston uses high-molecular polythene, polyurethane or the nylon manufacturing that density is less, friction coefficient is less.
The operation and the operational process of this novel Arch-Breaking Device are such.
1. inflation.Two position three-way valve is in the state that source of the gas and gas port are connected; Pressurized air can get in the cylinder sleeve chamber through gas port; Get into air bleeder through the ventilation main aperture; If this moment piston to be in cylinder sleeve interior from the nearer end of gas port, then can be compressed air and shift the other end onto, be combined into sealing surface up to the conical end of piston and the taper hole of cylinder sleeve.Pressurized air promotes resilient sleeve opens its distortion, passes through from the side, enters into the cylinder sleeve inner chamber, enters into air storing cavity through pore again.According to the size of air storing cavity, keep inflated condition 1～15 minute until being full of.When resilient sleeve both sides air pressure reaches balance, can be in and not be out of shape open state, can cover air bleeder.
Analyze piston strained condition in the axial direction this moment; On the direction the compressed-air actuated pressure from the gas port direction is arranged; Promoting piston has the trend away from gas port, has the thrust of conical sealing surface, the part that exposes to the open air at the exhaust outlet place to receive the compressed-air actuated pressure on bar pressure, the piston ring surface on another direction.Four power make piston be in the stress balance state in the axial direction, the piston transfixion.
2. broken arch.When the broken arch of needs, two position three-way valve ends source of the gas, and gas port is connected with atmosphere; The compressed-air actuated pressure moment from the gas port direction that piston received originally reduces to become barometric pressure, and resilient sleeve has been ended current path, and the air impassabitity air bleeder in the air storing cavity, ventilation main aperture, gas port flow out; The stressed in the axial direction non-equilibrium state that is in of piston; The pressure moment promotion piston that pressurized air acts on the piston ring surface moves up, and conical sealing surface is opened, and the pressurized air in the air storing cavity gets in the cylinder sleeve chamber through pore; Through freeing pipe be discharged into material bed in, thereby play brokenly arch action.
3. after broken arch was accomplished, two position three-way valve resetted, and gets back to inflated condition, gets into second working cycle.
Compare with prior art, the present invention does not use spring, when broken arch, can not form throttling action to air-flow, has significantly shortened deflation time, and broken arch effect significantly improves, and when venting finishes, does not also have pressure air and is enclosed in the air storing cavity.Its outer pipeline is compared with traditional Arch-Breaking Device and has been lacked check valve and a pipeline, and step is fairly simple during user installation.Compare with patent 200420064020.7, outer pipeline is identical, but this patent inner structure is complicated a lot, no matter still be manufacturing process from the part number on.
Can be known that by the above the present invention has such beneficial effect: evacuation time weak point, energy savings, broken arch are effective, simple in structure.Compare prior art, the present invention has outstanding substantive distinguishing features and obvious improvement.
Description of drawings
Fig. 1 is the embodiment of the invention 1 cutaway view;
Fig. 2 is I place partial enlarged drawing among Fig. 1 (resilient sleeve 5 deformation patterns during inflation);
The site plan of each part when Fig. 3 is broken arch of the embodiment of the invention 1 venting;
Fig. 4 is the embodiment of the invention 2 cutaway views;
Shown in the figure: 1. freeing pipe; 2. housing; 3. air storing cavity; 4. cylinder sleeve; 5. resilient sleeve; 6. pore; 7. seal ring; 8. closing plate; 9. two-position three way magnetic valve; 10. gas port; 11. air bleeder; 12. source of the gas; 13. ventilation main aperture; 14. piston; 15. two-position three way hand valve.
The specific embodiment
Embodiment 1.Like Fig. 1, Fig. 2 and shown in Figure 3, novel Arch-Breaking Device is made up of housing 2, freeing pipe 1, cylinder sleeve 4, piston 14, resilient sleeve 5, closing plate 8 and two-position three way magnetic valve 9.
Pistons 14 are installed in the cylinder sleeve 4, and the inner cylinder face of the external cylindrical surface of piston 14 and cylinder sleeve 4 cooperates, and can inside slide, and piston 14 1 ends are tapered, when the taper hole that slides into this conical end and cylinder sleeve 4 when fitting together, just can form a pair of sealing surface.The other end of piston 14 has axial ventilation main aperture 13, is blind hole.Air bleeder 11 is radially-arranged, communicates with ventilation main aperture 13 inwardly, leads to piston 14 outsides outwardly.
Cyclic spring cover 5 is enclosed within on the piston 14; Resilient sleeve 5 is processed by resilient polyurethane, relies on less elastic force, can cover air bleeder 11; As pressurized air from air bleeder 11 when coming; Can promote resilient sleeve 5 distortion easily and open, thus pressurized air can pass through from resilient sleeve 5 sides, as shown in Figure 2.Because air-flow has received resistance, this resilient sleeve 5 has played the effect of throttling in fact.Charge into when gas port has pressurized air, piston 14 is positioned at when the nearer position of gas port 10, and pressurized air can promote piston 14 away from gas port 10, fits together until the conical end of piston 14 and the taper hole of cylinder sleeve 4.
If air bleeder 11 internal gas pressures are less; Resilient sleeve 5 outside air pressure are bigger, and when promptly air had the trend of oppositely passing through, resilient sleeve 5 can cover air bleeder 11 rapidly; Make the air-flow impassabitity, just air extractor vent 11 and resilient sleeve 5 have formed the effect of one-way throttle valve.
Freeing pipe 1 is fixed on housing 2 other ends, and the end of end in housing 2 and cylinder sleeve 4 taper holes links to each other and communicates, and the other end reaches outside the housing 2, is arranged to flange, can be connected with other pipeline, causes in the feed bin.Cylinder sleeve 4, housing 2 and the sealing of the freeing pipe 1 three place of mutually combining are better, and be air tight.The space that is in outside cylinder sleeve 4 and the freeing pipe 1, is surrounded by housing 2 has again formed air storing cavity 3.Pore 6 can be communicated with cavity and the air storing cavity 3 in the cylinder sleeve 4.
The end of cylinder sleeve 4 outside housing 2 has flange and closing plate 8 to link together, and the junction good seal is air tight.Gas port 10 is arranged on the closing plate 8, and gas port 10 links to each other with two-position three way magnetic valve 9 through outer pipeline, and two-position three way magnetic valve 9 connects source of the gas 12.
Tight for the mating face seal that makes cylinder sleeve 4 and piston 14, on piston, be provided with seal ring 7.
When piston 14 moved to cylinder sleeve 4 upper ends, conical sealing surface was opened, and air storing cavity 3 is communicated with through pore 6, cylinder sleeve 4 inner chambers and freeing pipe 1, and the pressurized air in the air storing cavity 3 just can discharge through freeing pipe 1 smoothly.
The working process of present embodiment Arch-Breaking Device is such.
1. inflation.As shown in Figure 1; Two-position three way magnetic valve 9 is in non-power status, the state that source of the gas 12 and gas port 10 are connected, and pressurized air can get in cylinder sleeve 4 chambeies through gas port 10; Get into air bleeder 11 through ventilation main aperture 13; If this moment, piston 14 was in cylinder sleeve 4 topmost, then can be pulled to the lower end, be combined into sealing surface up to the conical head of piston 14 and the taper hole of cylinder sleeve 4.Make as shown in Figure 2ly, pressurized air promotes resilient sleeve 5 opens its distortion, passes through from the side, enters into cylinder sleeve 4 inner chambers, enters into air storing cavity 3 through pore 6 again.According to the size of air storing cavity, kept inflated condition 1～15 minute.When resilient sleeve 5 pressure at both sides reach balance, be in and be not out of shape open state among Fig. 1, can cover air bleeder 11.
Analyze the strained condition of piston 14 on above-below direction this moment; Top-down compressed-air actuated pressure, the thrust of conical sealing surface from bottom to top, the part that exposes to the open air in freeing pipe 1 exit receive the compressed-air actuated pressure on bar pressure and piston 14 annular table.Four power make piston 14 be in the stress balance state, piston 14 transfixions.
2. broken arch.As shown in Figure 3, when the broken arch of needs, give two-position three way magnetic valve 9 energisings; This valve events, source of the gas 12 is ended gas port 10 and atmosphere; Pressure moment from top to bottom that piston 14 received originally reduces to become barometric pressure, and resilient sleeve 5 has been ended current path, and the air impassabitity air bleeder 11 in the air storing cavity 3, ventilation main aperture 13, gas ports 10 flow out; Piston 14 is the stressed non-equilibrium state that is on above-below direction; The pressure moment promotion piston that pressurized air acts on piston 14 annular table moves up, and conical sealing surface is opened, and the pressurized airs in the air storing cavity 3 get in cylinder sleeves 4 chambeies through pore 6; Through freeing pipe 1 be discharged into material bed in, thereby play brokenly arch action.
3. after broken arch is accomplished, two-position three way magnetic valve 9 outages, this valve resets, and gets back to the inflated condition of Fig. 1, gets into second working cycle.
Embodiment 2.As shown in Figure 4, novel Arch-Breaking Device is made up of housing 2, freeing pipe 1, cylinder sleeve 4, piston 14, resilient sleeve 5, closing plate 8 and two-position three way hand valve 15.
The end of cylinder sleeve 4 outside housing 2 has screw thread and closing plate 8 to link together, and the junction good seal is air tight.Gas port 10 is arranged on the closing plate 8, and gas port 10 links to each other with two-position three way hand valve 15 through outer pipeline, and two-position three way hand valve 15 connects source of the gas 12.
Under the normal condition, two-position three way hand valve 15 is in state shown in Figure 4, and source of the gas 12 is connected with gas port 10.
When the broken arch of needs, the artificial handle that promotes two-position three way hand valve 15, source of the gas 12 is ended gas port 10 and atmosphere.
Other structure, principle of work, working process are with embodiment 1.
Claims (9)
1. a novel Arch-Breaking Device comprises housing, freeing pipe, cylinder sleeve, closing plate, it is characterized by:
A. also comprise piston and resilient sleeve;
B. cylinder sleeve has cylindrical bore, is fixed on housing one end or a side, and cylinder sleeve one end is in housing, and the other end outside; Wherein at an interior end taper hole is arranged, from the nearer end of taper hole pore is arranged on the cylindrical hole sidewall, this pore is communicated with cylinder sleeve chamber interior or exterior space;
C., piston is installed in the cylinder sleeve, and the external cylindrical surface of piston and the inner cylinder face of cylinder sleeve cooperate, and piston one end is tapered, and the taper hole of ability and cylinder sleeve forms a pair of sealing surface near fitting together; The other end of piston has axial ventilation main aperture, is blind hole; Air bleeder is radially-arranged, communicates with the ventilation main aperture inwardly, leads to the piston outside outwardly; Piston upper conical end has a ring surface;
D. the cyclic spring cover is enclosed within on the piston, relies on less elastic force, can cover air bleeder;
E. freeing pipe is fixed on the housing other end or opposite side, and the end in housing and the end of cylinder sleeve taper hole communicate and link together, and the other end reaches outside the housing; Air storing cavity is in outside cylinder sleeve and the freeing pipe, is surrounded by housing again; Pore is communicated with cavity and the air storing cavity in the cylinder sleeve;
F. an end and the closing plate of cylinder sleeve outside housing links together, and gas port is arranged on the closing plate.
2. novel Arch-Breaking Device according to claim 1, it is characterized by resilient sleeve is to be processed by resilient polyurethane or rubber.
3. novel Arch-Breaking Device according to claim 1 is characterized by gas port and links to each other with two position three-way valve through outer pipeline, and two position three-way valve connects source of the gas.
4. novel Arch-Breaking Device according to claim 1 is characterized by freeing pipe and external pipeline junction and uses flange or be threaded.
5. novel Arch-Breaking Device according to claim 1 is characterized by cylinder sleeve and closing plate and uses flange or be threaded.
6. novel Arch-Breaking Device according to claim 1 is characterized by piston and uses high-molecular polythene, polyurethane or nylon manufacturing.
7. novel Arch-Breaking Device according to claim 1 is characterized by and on piston, is provided with seal ring.
8. novel Arch-Breaking Device according to claim 3, it is characterized by two position three-way valve can be the two position three-way valve electromagnetic valve, also can be the two position three-way valve hand valve.
9. novel Arch-Breaking Device according to claim 1, it is such it is characterized by its operation and operational process:
A. inflation: the state that operation is in two position three-way valve source of the gas and gas port are connected; Pressurized air gets in the cylinder sleeve chamber through gas port; Get into air bleeder through the ventilation main aperture, if this moment piston to be in cylinder sleeve interior from the nearer end of gas port, then can be compressed air and shift the other end onto; Pressurized air promotes resilient sleeve opens its distortion, passes through from the side, enters into the cylinder sleeve inner chamber, enters into air storing cavity through pore again; Kept inflated condition 1～15 minute;
B. broken arch: the operation two position three-way valve ends source of the gas; Gas port is connected with atmosphere; The pressure moment promotion piston that pressurized air acts on the piston ring surface moves up; Conical sealing surface is opened, and the pressurized air in the air storing cavity gets in the cylinder sleeve chamber through pore, through freeing pipe be discharged into material bed in;
C. after broken arch was accomplished, the operation two position three-way valve was in the state that source of the gas and gas port are connected, and gets back to inflated condition, gets into second working cycle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101881534A CN102689756A (en) | 2012-06-08 | 2012-06-08 | Novel arch-breaking device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101881534A CN102689756A (en) | 2012-06-08 | 2012-06-08 | Novel arch-breaking device |
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| CN102689756A true CN102689756A (en) | 2012-09-26 |
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| CN2012101881534A Pending CN102689756A (en) | 2012-06-08 | 2012-06-08 | Novel arch-breaking device |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2068087U (en) * | 1990-05-20 | 1990-12-26 | 孟繁英 | Arch-breaking unit |
| US5143256A (en) * | 1991-04-22 | 1992-09-01 | Wadensten Theodore S | Gas accumulator and blaster apparatus |
| CN2127172Y (en) * | 1992-06-16 | 1993-02-17 | 王远明 | Snore piece liquid sampling unit |
| CN2411355Y (en) * | 2000-03-28 | 2000-12-20 | 蔡庆 | Tyre automatic inflating device |
| CN2587306Y (en) * | 2002-12-26 | 2003-11-26 | 张明亮 | Check stopper for preparing direct drinking water |
| CN2730802Y (en) * | 2004-05-12 | 2005-10-05 | 孟繁英 | Arch breaker |
| CN2797264Y (en) * | 2005-04-27 | 2006-07-19 | 王新宽 | Slid valve type air cannon |
| CN2820100Y (en) * | 2005-08-29 | 2006-09-27 | 王又平 | Radial artery type vascular compression hemostat |
| CN201038227Y (en) * | 2007-04-28 | 2008-03-19 | 比亚迪股份有限公司 | Battery vacuum liquid injection device |
| CN201284085Y (en) * | 2008-08-26 | 2009-08-05 | 濮阳市亚利机械制造有限公司 | Shock-absorbing air bubble release assembly |
| CN202642563U (en) * | 2012-06-08 | 2013-01-02 | 济宁市支点机电设备有限公司 | Novel air cannon block clearer |
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2012
- 2012-06-08 CN CN2012101881534A patent/CN102689756A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2068087U (en) * | 1990-05-20 | 1990-12-26 | 孟繁英 | Arch-breaking unit |
| US5143256A (en) * | 1991-04-22 | 1992-09-01 | Wadensten Theodore S | Gas accumulator and blaster apparatus |
| CN2127172Y (en) * | 1992-06-16 | 1993-02-17 | 王远明 | Snore piece liquid sampling unit |
| CN2411355Y (en) * | 2000-03-28 | 2000-12-20 | 蔡庆 | Tyre automatic inflating device |
| CN2587306Y (en) * | 2002-12-26 | 2003-11-26 | 张明亮 | Check stopper for preparing direct drinking water |
| CN2730802Y (en) * | 2004-05-12 | 2005-10-05 | 孟繁英 | Arch breaker |
| CN2797264Y (en) * | 2005-04-27 | 2006-07-19 | 王新宽 | Slid valve type air cannon |
| CN2820100Y (en) * | 2005-08-29 | 2006-09-27 | 王又平 | Radial artery type vascular compression hemostat |
| CN201038227Y (en) * | 2007-04-28 | 2008-03-19 | 比亚迪股份有限公司 | Battery vacuum liquid injection device |
| CN201284085Y (en) * | 2008-08-26 | 2009-08-05 | 濮阳市亚利机械制造有限公司 | Shock-absorbing air bubble release assembly |
| CN202642563U (en) * | 2012-06-08 | 2013-01-02 | 济宁市支点机电设备有限公司 | Novel air cannon block clearer |
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Application publication date: 20120926 |