CN201818815U - Pneumatic damper plate valve - Google Patents
Pneumatic damper plate valve Download PDFInfo
- Publication number
- CN201818815U CN201818815U CN2010205725531U CN201020572553U CN201818815U CN 201818815 U CN201818815 U CN 201818815U CN 2010205725531 U CN2010205725531 U CN 2010205725531U CN 201020572553 U CN201020572553 U CN 201020572553U CN 201818815 U CN201818815 U CN 201818815U
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- Prior art keywords
- suction port
- flashboard
- valve
- brake plate
- sidewall
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Abstract
The utility model discloses a pneumatic damper plate valve, which is characterized in that: the damper plate cavity of the pneumatic damper plate valve is square, the discharging amount is several times of that of a circular damper plate valve for the same work stroke; at the same time, a first, a second, a third and a fourth purging air inlet are disposed on the three sidewalls outside the valve body corresponding the damper plate cavity. In the damper plate cavity, along the air flow direction, the air which flows in through the fourth purging air inlet on the first sidewall reaches the first purging air inlet; the air which flows in through the first purging air inlet reaches the second purging air inlet; the air which flows in through the second purging air inlet reaches the third purging air inlet, and the air which flows in through the third purging air inlet returns to the first sidewall. By forming an air flow circulation along the air flow direction around the material channel, the utility model solves the problem of prior arts that blind angles exist between the purging air inlets of the damper plate valve, can remove the materials in the damper plate cavity thoroughly, and improves the sealing performance of the damper plate valve.
Description
Technical field
The utility model relates to a kind of gate valve, is specifically related to a kind of pneumatic brake plate valve that is used for ash-transmission system.
Background technique
Gate valve is a kind of valve commonly used in the delivery line, is used to connect and block the discharging of material, and the open-shut device in the gate valve is exactly a flashboard, by mentioning or the opening and closing of realization to gate valve of landing of described flashboard; Gate valve in the conventional art in use, because material is deposited on the gate valve and blanking after gate valve is opened, like this in the process that gate valve is opened, a fraction of material can be along with opening of gate valve attached to move on the flashboard thereupon, and then make material move in the valve pocket and then deposition, there is the slit when long-term accumulated can cause flashboard in off position and between the valve pocket, influence the sealing effect of gate valve, also can cause the valve pocket of gate valve obstruction to occur and cause gate valve to close when serious.
In order to address this problem, Chinese patent literature CN2690682Y discloses a kind of gate valve that is used for novel blowing device that valve pocket inside residual material is purged that is provided with, this gate valve is by cylinder, control unit, valve component constitutes, flashboard in the described valve component links to each other with piston rod, periphery at described valve body is symmetrical arranged several purge holes, pipeline links to each other with valve pocket through described purge hole with angle coupling by delta connection, and link to each other with described control unit by one-way valve, described control unit links to each other with control power supply and compressed air gas source, under the effect of described control unit, when described gate valve was in opening state, described pressurized air entered valve pocket by purge hole described valve pocket is purged.
The described gate valve of above-mentioned technology, although purge hole is peripheral symmetrically arranged at described valve body, but because described pressurized gas sprays radially through behind the purge hole, so pressurized gas can't form a circuit gaseous purge stream in valve pocket, thereby can only realize the deposition material of valve pocket local space is removed, and in described valve pocket, between adjacent two purge holes, still exist radial gas flow purging less than the dead angle, the deposition material that is positioned at the place, dead angle so just can't be eliminated, these deposition materials can have influence on closing of flashboard equally, cause the sealing of flashboard to reduce.
The model utility content
Technical problem to be solved in the utility model is that the position that is provided with of the blowing cleaner of gate valve of the prior art is that periphery along described valve body is symmetrical arranged, there is the dead angle when purging in this set-up mode, can't realize removing to the deposition material that is positioned at the place, dead angle, thereby influenced the sealing of gate valve, and then a kind of pneumatic brake plate valve that can thoroughly remove the deposition material in the gate valve cavity is provided.
In order to solve the problems of the technologies described above, the utility model provides a kind of pneumatic brake plate valve, the piston that comprises cylinder body and be positioned at described cylinder body, the biasing force parts of the described piston that is used to reset; Cylinder body below the described piston is provided with dynamic medium and imports and exports;
Valve body is connected setting with described cylinder body, has a valve pocket at described valve body near an end of described cylinder body, is provided with the flashboard chamber at the other end of described valve inner;
Material feeding mouth and discharge port are arranged on the described valve body, and described material feeding mouth and described discharge port realize being communicated with formation blanking cavity, described blanking cavity and perpendicular setting in described flashboard chamber and connection;
Pull bar, described pull bar are arranged in the described valve pocket; One end of described pull bar is connected with described piston, and the other end is connected with flashboard, and described flashboard is suitable for inserting in the described flashboard chamber described blanking cavity is cut off fully;
Described flashboard chamber is square, and three side-walls in corresponding flashboard chamber, described valve body outside are respectively arranged with the purging suction port, and described purging suction port is connected with described flashboard chamber;
Wherein, on described the first side wall, be provided with first near the corner of second sidewall adjacent and purge suction port with described the first side wall; On described second sidewall, be provided with second near the corner of the 3rd sidewall adjacent and purge suction port with described second sidewall; Be provided with the 3rd purging suction port on described the 3rd sidewall and between described blanking cavity and described valve pocket; Described first, second, third purges suction port all towards the right opposite setting of its place sidewall;
Be provided with the 4th purging suction port on the described the first side wall and between described the 3rd purging suction port right opposite and described valve pocket, the described the 4th purges suction port has a curved gas-entered passageway, and the suction port of described curved gas-entered passageway is towards the described second sidewall setting.
Described flashboard chamber is rectangle.
Described curved be " ┛ " shape.
The described the 3rd purges suction port is arranged near described valve pocket place.
Upper side wall in described flashboard chamber offers airtight sealing groove, is provided with the gas sealing mechanism that described flashboard is carried out fixed limit in described airtight sealing groove inside, and described airtight sealing groove is connected with hermetic seal suction port on being arranged on described valve body;
The described the 3rd medial axis that purges suction port is positioned at the opening elongated area of described airtight sealing groove near the opening slot of described valve pocket.
Described first medial axis that purges suction port is positioned at the opening elongated area of described airtight sealing groove near the reciprocal opening slot of described valve pocket.
Described leaktight encapsulation is changed to the hermetic seal circle, and described airtight seal and has the gap between the top of described airtight sealing groove when off working state.
Described airtight sealing groove is an annular groove.
Side in described flashboard chamber offers the groove that can embed removing device, and the sidewall towards described material feeding mouth of described removing device and described flashboard contacts.
Described removing device is a Stamping Steel Ribbon.
Described groove is an annular groove.
Pneumatic brake plate valve described in the utility model has the following advantages:
(1) the pneumatic brake plate valve that provides of the utility model, three sidewalls in the outside corresponding flashboard of described valve body chamber are provided with first, second, third, fourth and purge suction port.In described flashboard chamber, flow direction along air-flow, on the first side wall the 4th purges the air inlet arrival first purging suction port place of suction port, the air inlet that the first air inlet arrival second that purges suction port purges suction port place, the second purging suction port arrives the 3rd purging suction port place, the 3rd air inlet that purges suction port is got back on the first side wall once more, air-flow along its flow to direction form in the periphery of material channel one around circulating air flow, therefore can there be any dead angle, can thoroughly removes attached to the material particles in the flashboard chamber.In addition, the utility model is provided with the described the 3rd and purges suction port in the position near valve pocket, so more can strengthen the cleaning range to described flashboard chamber.
(2) the pneumatic brake plate valve that provides of the utility model is arranged to rectangular with described flashboard chamber, and under the situation of same working stroke, load can be the several times of circular gate valve like this.
(3) the pneumatic brake plate valve that provides of the utility model, side in described flashboard chamber offers airtight sealing groove, described airtight sealing groove is connected with hermetic seal suction port on being arranged on described valve body, is provided with the airtight seal of described flashboard being carried out fixed limit in described airtight sealing groove inside.When described gate valve cuts out, charge into pressurized air by the air chamber of hermetic seal suction port between the gentle seal groove of described airtight seal, under described compressed-air actuated contention effect, it is inconsistent to promote described airtight seal and described flashboard, described gate valve is carried out fixed limit, when described gate valve is opened, release pressurized air by described hermetic seal suction port again, again produce the slit between described airtight seal and the described flashboard, spur described flashboard by described Pneumatic actuator and open described gate valve, this sealing means has improved the sealing of gate valve, also avoided in traditional gate valve between the valve body and flashboard having prolonged the working life of gate valve owing to the rigid wear phenomenon that causes that contacts.
In addition, described pneumatic brake plate valve is provided with the opening elongated area that the described the 3rd medial axis that purges suction port is positioned at the opening slot of the close described valve pocket of described airtight sealing groove; Described first medial axis that purges suction port is set is positioned at the opening elongated area of described airtight sealing groove near the reciprocal opening slot of described valve pocket.Be because after the air chamber to described airtight sealing groove carries out pressure release, described gas sealing mechanism can shrink in the into described airtight sealing groove, opening flashboard this moment can cause material to stockpile surface at described gas sealing mechanism, like this when promoting described flashboard once more and close gate valve, the material web that can stockpile descends and is pushed into the position of described flashboard and valve body conflict, cause the material between described flashboard and the valve body to be compacted, even use the purging air inlet also to be difficult to remove, therefore, the utility model is with the direction setting of airtight sealing groove along the air-flow of described purging suction port formation, when described gate valve is opened, described airtight sealing groove is cleaned timely, avoid occurring the phenomenon that material stockpiles.
(4) the pneumatic brake plate valve that provides of the utility model offers the groove that can embed removing device in a side of described gate valve, and a sidewall of described removing device and described flashboard contacts.In the process of described gate valve opening and closing, described removing device can scrape the material on the described flashboard, prevent that a large amount of materials on the described flashboard from entering valve pocket all around, further guaranteed can not have material particles between the gentle seal ring of flashboard, guarantee the sealing of gate valve, strengthened the stability of gate valve work.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail below,
Shown in Figure 1 is the structural drawing of pneumatic brake plate valve described in the utility model;
Shown in Figure 2 is the sectional view that the local valve body that is provided with the purging suction port described in the utility model is overlooked;
Shown in Figure 3 is the structural drawing that is provided with the pneumatic brake plate valve of gas sealing mechanism described in the utility model;
Shown in Figure 4 is the sectional view of A-A face among Fig. 3;
Shown in Figure 5 is the structural drawing that is provided with the pneumatic brake plate valve of removing device described in the utility model;
Wherein, reference character is: the 1-cylinder body; The 2-dynamic medium is imported and exported; The 3-piston; 4-biasing force parts; The 5-valve body; The 6-material feeding mouth; The 7-discharge port; The 8-pull bar; The 9-flashboard; The 10-valve pocket; 111-first purges suction port; 112-second purges suction port; 113-the 3rd purges suction port; 114-the 4th purges suction port; The 1111-the first side wall; 1112-second sidewall; 1113-the 3rd sidewall; The airtight sealing groove of 12-; The airtight seal of 13-; 14-hermetic seal suction port; The 15-Stamping Steel Ribbon; 16-flashboard chamber; 17-blanking cavity.
Embodiment
Be the structural drawing of pneumatic brake plate valve described in the utility model as shown in Figure 1, the piston 3 that the plate valve of pneumatic brake described in the present embodiment comprises cylinder body 1 and is positioned at described cylinder body 1, the biasing force parts 4 of the described piston 3 that is used to reset; Cylinder body 1 below the described piston 3 is provided with dynamic medium and imports and exports 2, and described dynamic medium is imported and exported 2 and is connected with external source of the gas;
Be connected with valve body 5 with described cylinder body 1, have a valve pocket 10 at described valve body 5 near an end of described cylinder bodies 1, the other end in described valve body 5 inside is provided with flashboard chamber 16;
Described valve body 5 is provided with material feeding mouth 6 and discharge port 7, and described material feeding mouth 6 and described discharge port 7 realize being communicated with formation blanking cavity 17, described blanking cavity 17 and 16 perpendicular setting and the connections of described flashboard chamber;
Be provided with pull bar 8 in described valve pocket, an end of described pull bar 8 is connected with described piston 3, and the other end is connected with flashboard 9, and described flashboard 9 is suitable for inserting in the described flashboard chamber 16 described blanking cavity 17 is cut off fully;
Described flashboard chamber 16 is square, and three side-walls in described valve body 5 outside corresponding flashboard chambeies 16 are respectively arranged with the purging suction port, and described purging suction port is connected with described flashboard chamber 16, and the set-up mode of described purging suction port as shown in Figure 2;
Wherein, on described the first side wall 1111, be provided with first near the corner of second sidewall 1112 adjacent and purge suction port 111 with described the first side wall 1111; On described second sidewall 1112, be provided with second near the corner of the 3rd sidewall 1113 adjacent and purge suction port 112 with described second sidewall 1112; Position on described the 3rd sidewall 1113, between described blanking chamber 17 and described valve pocket 10 is provided with the 3rd and purges suction port 113, selects to be provided with the 3rd in the present embodiment and purges suction port in the position near described valve pocket 10; Described first, second, third purges suction port all towards the right opposite setting of its place sidewall;
Be provided with the 4th purging suction port 114 on the described the first side wall 1111, between described the 3rd purging suction port 113 right opposites and described valve pocket 10, the described the 4th purges suction port 114 has a curved gas-entered passageway, the suction port of described curved gas-entered passageway is provided with towards described second sidewall 1112, selects to be provided with described curved gas-entered passageway in the present embodiment and is " ┛ " shape.
Described purging suction port is connected with air compressor.
The working procedure of the pneumatic brake plate valve described in the present embodiment is:
During original state, described gate valve is in closed condition, described flashboard 9 inserts in the described flashboard chamber 16 described blanking cavity 17 is cut off fully, when opening described gate valve, external source of the gas is imported and exported 2 by described dynamic medium gas is pressed into described cylinder body 1, promote described piston 3 and move to the direction away from valve body 5, and move by the described flashboard 9 of described pull bar 8 drives, described gate valve is opened;
After gate valve was opened, before giving described gate valve shutdown signal, the air compressor of pressurized air by being connected with the purging suction port sprayed in the described flashboard chamber 16; In described flashboard chamber 16, flow direction along air-flow, the air inlet that the 4th air inlet arrival first purging suction port 111, first that purges suction port 114 from the first side wall 1111 purges suction port 111 arrives second air inlet that purges suction port 112 places, the second purging suction port 112 and arrives the 3rd purging suction port 113 places, the 3rd air inlet that purges suction port 113 is got back on the first side wall 1111 once more, intersect with air-flow, thereby described flashboard chamber 16 is cleaned completely from 114 ejections of described the 4th purging suction port.
After blanking finishes, import and export 2 pairs of described cylinder bodies 1 by described dynamic medium and carry out exhaust pressure relief, described piston 3 moves towards the direction towards valve body 5 under the pulling function of described biasing force parts 4, and drive described flashboard 9 by described pull bar 8 and move in the described flashboard chamber 16, close described gate valve, wait described gate valve to close the pressurized air of back shut-down purge suction port fully.
Embodiment 2
Be the structural drawing that is provided with the pneumatic brake plate valve of gas sealing mechanism described in the utility model as shown in Figure 3, compare, described flashboard chamber 16 is set in the present embodiment is rectangular with the pneumatic brake plate valve described in the embodiment 1;
The upper side wall in described flashboard chamber 16 offers airtight sealing groove 12, is provided with the gas sealing mechanism that described flashboard 9 is carried out fixed limit in described airtight sealing groove 12 inside, and described airtight sealing groove 12 is connected with hermetic seal suction port 14 on being arranged on described valve body 5; The described the 3rd medial axis that purges suction port 113 is positioned at the opening elongated area of described airtight sealing groove 12 near the opening slot of described valve pocket 10; Described first medial axis that purges suction port 111 is positioned at the opening elongated area of described airtight sealing groove 12 near described valve pocket 10 reciprocal opening slots; Leaktight encapsulation described in the present embodiment is changed to hermetic seal circle 13, and described airtight seal 13 and has the gap between the top of described airtight sealing groove 12 when off working state, form an air chamber; Wherein, described off working state is meant the state of equilibrium when described airtight seal 13 is not subjected to pressurized air extruding that described air compressor charges into.
The working procedure of the pneumatic brake plate valve described in the present embodiment is:
During original state, described gate valve is in closed condition, described flashboard 9 inserts in the described flashboard chamber 16 described blanking cavity 17 is cut off fully, closely conflict on described flashboard 9 under the compressed-air actuated squeezing action of described airtight seal 13 in described airtight sealing groove 12, strengthened the sealing effect of described gate valve, when opening described gate valve, the air compressor that described hermetic seal suction port 14 connects carries out exhaust pressure relief to the air chamber in the described airtight sealing groove 12, elimination is to the squeezing action of described seal ring, described seal ring leaves described flashboard 9, and produce the slit between the described flashboard 9, described external source of the gas is pressed into described cylinder body 1 with gas simultaneously, promote described piston and move, and move, open described gate valve by the described flashboard 9 of described pull bar 8 drives to direction away from valve body 5;
After gate valve was opened, before giving described gate valve shutdown signal, the air compressor of pressurized air by being connected with the purging suction port sprayed in the described flashboard chamber 16; In described flashboard chamber 16, flow direction along air-flow, the air inlet that the 4th air inlet arrival first purging suction port 111, first that purges suction port 114 from the first side wall 1111 purges suction port 111 arrives second air inlet that purges suction port 112 places, the second purging suction port 112 and arrives the 3rd purging suction port 113 places, the 3rd air inlet that purges suction port 113 is got back on the first side wall 1111 once more, intersect with air-flow from 114 ejections of described the 4th purging suction port, thereby described airtight seal 13 regions are cleaned, and material is not deposited in assurance 16 inside, flashboard chamber.
After blanking finishes, import and export 2 pairs of described cylinders by described dynamic medium and carry out exhaust pressure relief, described piston 3 moves towards the direction towards valve body 5 under the pulling function of described biasing force parts 4, and drive described flashboard 9 by described pull bar 8 and move in the described flashboard chamber 16, close described gate valve.
After described flashboard is returned to original state, the air compressor that hermetic seal suction port 14 on the described airtight sealing groove 12 connects charges into pressurized air in the air chamber of described airtight sealing groove 12, pushing described airtight seal 13 moves to described flashboard 9, described seal ring is closely conflicted on described flashboard 9, push spacing to described flashboard 9, guarantee that described gate valve keeps good sealing property, wait described gate valve to close the pressurized air of back shut-down purge suction port fully.
Be the structural drawing that is provided with the gate valve of removing device described in the utility model as shown in Figure 5, in this embodiment, it is on previous embodiment 1 or embodiment's 2 architecture basics, and the side in described flashboard chamber offers the groove that can embed removing device; Selecting in the present embodiment described groove is set is annular groove; One sidewall of described removing device and described flashboard 9 contacts, and here, a sidewall of described flashboard 9 is meant the side of described gate valve towards described material feeding mouth 6; Removing device described in the present embodiment selects to be set to Stamping Steel Ribbon 15.
Pneumatic brake plate valve described in the present embodiment is in when work, described Stamping Steel Ribbon 15 with the processes of the described flashboard 9 relative slips of conflicting in, can scrape the material particles on the described flashboard 9, avoid described material particles to enter described valve body 5 inside with described flashboard 9.
The above only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here need not also can't give to all mode of executions exhaustive, and the conspicuous variation of being extended out thus or the change still be among the protection domain of the present utility model.
Claims (11)
1. pneumatic brake plate valve, the piston (3) that comprises cylinder body (1) and be positioned at described cylinder body (1), the biasing force parts (4) of the described piston (3) that is used to reset; The cylinder body (1) of described piston (3) below is provided with dynamic medium and imports and exports (2);
Valve body (5) is connected setting with described cylinder body (1), has a valve pocket (10) at described valve body (5) near an end of described cylinder body (1), and the other end inner at described valve body (5) is provided with flashboard chamber (16);
Material feeding mouth (6) and discharge port (7) are arranged on the described valve body (5), and described material feeding mouth (6) and described discharge port (7) realize being communicated with formation blanking cavity (17), described blanking cavity (17) and perpendicular setting in described flashboard chamber (16) and connection;
Pull bar (8), described pull bar (8) are arranged in the described valve pocket (10); One end of described pull bar (8) is connected with described piston (3), and the other end is connected with flashboard (9), and described flashboard (9) is suitable for inserting in the described flashboard chamber (16) described blanking cavity (17) is cut off fully;
It is characterized in that,
Described flashboard chamber (16) is square, and three side-walls in corresponding flashboard chamber (16), described valve body (5) outside are respectively arranged with the purging suction port, and described purging suction port is connected with described flashboard chamber (16);
Wherein, be provided with first in the corner of last, close adjacent second sidewall (1112) of described the first side wall (1111) and purge suction port (111) with described the first side wall (1111); Be provided with second in the corner of last, close adjacent the 3rd sidewall (1113) of described second sidewall (1112) and purge suction port (112) with described second sidewall (1112); Go up and be positioned at described the 3rd sidewall (1113) and be provided with the 3rd purging suction port (113) between described blanking cavity (17) and the described valve pocket (10); Described first, second, third purges suction port all towards the right opposite setting of its place sidewall;
Go up and be positioned at the described the 3rd at described the first side wall (1111) and purge and be provided with the 4th between suction port (113) right opposite and the described valve pocket (10) and purge suction port (114), the described the 4th purges suction port (114) has a curved gas-entered passageway, and the suction port of described curved gas-entered passageway is provided with towards described second sidewall (1112).
2. pneumatic brake plate valve according to claim 1 is characterized in that, described flashboard chamber (16) is rectangle.
3. pneumatic brake plate valve according to claim 1 and 2 is characterized in that, described curved be " ┛ " shape.
4. pneumatic brake plate valve according to claim 1 and 2 is characterized in that, described the 3rd purging suction port (113) is arranged near described valve pocket (10) to be located.
5. pneumatic brake plate valve according to claim 1, it is characterized in that, upper side wall in described flashboard chamber (16) offers airtight sealing groove (12), be provided with the gas sealing mechanism that described flashboard (9) is carried out fixed limit in described airtight sealing groove (12) inside, described airtight sealing groove (12) is connected with hermetic seal suction port (14) on being arranged on described valve body (5);
The described the 3rd medial axis that purges suction port (113) is positioned at the opening elongated area of described airtight sealing groove (12) near the opening slot of described valve pocket (10).
6. pneumatic brake plate valve according to claim 5 is characterized in that, described first medial axis that purges suction port (111) is positioned at the opening elongated area of described airtight sealing groove (12) near the reciprocal opening slot of described valve pocket (10).
7. according to claim 5 or 6 described pneumatic brake plate valves, it is characterized in that described leaktight encapsulation is changed to hermetic seal circle (13), described airtight seal (13) and has the gap between the top of described airtight sealing groove (12) when off working state.
8. pneumatic brake plate valve according to claim 7 is characterized in that, described airtight sealing groove (12) is an annular groove.
9. according to claim 1 or 2 or 5 or 6 described pneumatic brake plate valves, it is characterized in that, side in described flashboard chamber (16) offers the groove that can embed removing device, and the sidewall towards described material feeding mouth (6) of described removing device and described flashboard (9) contacts.
10. pneumatic brake plate valve according to claim 9 is characterized in that, described removing device is Stamping Steel Ribbon (15).
11. pneumatic brake plate valve according to claim 9 is characterized in that, described groove is an annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205725531U CN201818815U (en) | 2010-10-22 | 2010-10-22 | Pneumatic damper plate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205725531U CN201818815U (en) | 2010-10-22 | 2010-10-22 | Pneumatic damper plate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818815U true CN201818815U (en) | 2011-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205725531U Expired - Lifetime CN201818815U (en) | 2010-10-22 | 2010-10-22 | Pneumatic damper plate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818815U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984276A (en) * | 2010-10-22 | 2011-03-09 | 兰州奇正粉体装备技术有限公司 | Pneumatic gate valve |
| CN102537391A (en) * | 2012-02-22 | 2012-07-04 | 山东双轮股份有限公司 | Vacuum gate valve |
| CN104534113A (en) * | 2014-12-22 | 2015-04-22 | 安徽神剑新材料股份有限公司 | Pneumatic gate valve and self-cleaning method thereof |
-
2010
- 2010-10-22 CN CN2010205725531U patent/CN201818815U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984276A (en) * | 2010-10-22 | 2011-03-09 | 兰州奇正粉体装备技术有限公司 | Pneumatic gate valve |
| CN101984276B (en) * | 2010-10-22 | 2012-06-20 | 兰州奇正粉体装备技术有限公司 | Pneumatic gate valve |
| CN102537391A (en) * | 2012-02-22 | 2012-07-04 | 山东双轮股份有限公司 | Vacuum gate valve |
| CN104534113A (en) * | 2014-12-22 | 2015-04-22 | 安徽神剑新材料股份有限公司 | Pneumatic gate valve and self-cleaning method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110504 Effective date of abandoning: 20120620 |