CN111520010A - Double-guide counterweight rod type air door locking device - Google Patents
Double-guide counterweight rod type air door locking device Download PDFInfo
- Publication number
- CN111520010A CN111520010A CN202010341317.7A CN202010341317A CN111520010A CN 111520010 A CN111520010 A CN 111520010A CN 202010341317 A CN202010341317 A CN 202010341317A CN 111520010 A CN111520010 A CN 111520010A
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- China
- Prior art keywords
- cylinder
- piston rod
- guide
- unlocking
- locking block
- Prior art date
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 230000033001 locomotion Effects 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000009977 dual effect Effects 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000009423 ventilation Methods 0.000 description 7
- 230000008602 contraction Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C7/00—Fastening devices specially adapted for two wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B51/00—Operating or controlling locks or other fastening devices by other non-mechanical means
- E05B51/02—Operating or controlling locks or other fastening devices by other non-mechanical means by pneumatic or hydraulic means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/10—Air doors
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The invention relates to a double-guide counterweight rod type air door locking device which comprises a shell, a universal steel wire rope pulley, guide counterweight rods, guide bearing wheels, a triangular locking block, an unlocking air cylinder and an air cylinder fixing support, wherein in the normal working period, the locking device is in a locking state, a piston rod of the unlocking air cylinder extends, the triangular locking block at the end of the piston rod of the unlocking air cylinder is positioned above two guide counterweight rods, and after an air door at one side is opened, the corresponding guide counterweight rod is lifted through the steel wire rope, and the triangular locking block is pushed to the upper part of the other guide counterweight rod and is locked; in the period of unlocking, the piston rod of the unlocking cylinder contracts, the piston rod drives the triangular locking block to be separated from the upper part of the guide counterweight rods, and the two guide counterweight rods can move simultaneously, namely, the air doors on two corresponding sides can be opened simultaneously.
Description
Technical Field
The invention relates to an air door locking device, in particular to a double-guide counterweight rod type air door locking device.
Background
Dampers are very important ventilation installations in mine ventilation systems, with or without alternative action in the ventilation system. In order to keep the ventilation system stable and reliable, the two dampers in the same group must be closed by a closing device, and cannot be opened at the same time. When a fire accident occurs in a mine, the catastrophe ventilation system needs to be regulated and controlled in an emergency manner to dredge smoke flow and prevent toxic and harmful gas from spreading to the working places of main personnel. The invention provides a double-guide counterweight rod type air door locking device which is reliable in locking in a normal period, and can relieve air door locking, emergently regulate and control underground air flow and improve disaster ventilation regulation and control capability of a mine when accidents such as fire disasters occur in the mine.
Disclosure of Invention
In order to keep the ventilation system stable and reliable, the invention provides a double-guide counterweight rod type air door locking device which can be locked in a normal period and unlocked in a catastrophe period and has reliable locking function.
A double-guide counterweight rod type air door locking device comprises a shell, universal steel wire rope pulleys, guide counterweight rods, guide bearing wheels, a triangular locking block, an unlocking air cylinder and an air cylinder fixing support, wherein installation holes are respectively formed in the centers of the top and the bottom of the shell, the locking device is fixed on a roadway side through the installation holes, the two universal steel wire rope pulleys are symmetrically arranged at the top of the shell, the two guide counterweight rods are symmetrically arranged inside the shell, one end of each steel wire rope is connected with the corresponding guide counterweight rod, the other end of each steel wire rope bypasses the corresponding universal steel wire rope pulley to be connected with the corresponding air door, the unlocking air cylinder is fixed on the air cylinder support, the air cylinder support is fixed on the shell, the triangular locking block is arranged at the end of a piston rod of the unlocking air cylinder and can rotate around the piston rod of the unlocking air cylinder, the axle centers of the, the piston rod of unblock cylinder only extends and contracts two states, and when the piston rod of unblock cylinder extended, triangle locking piece was located two direction counter weight pole directly over central authorities, triangle locking piece can be by its top to one side in addition when motion of one of them direction counter weight pole, the motion of the direction counter weight pole of restriction one side in addition, when the piston rod of unblock cylinder contracts, triangle locking piece left two directly over the direction counter weight pole.
Further, the triangle locking piece is 45 isosceles triangles in base angle, and fillet processing is all done at three angles, triangle locking piece middle part is provided with a round hole, the round hole sets up in the middle and is close to apex angle department, the piston rod of unblock cylinder passes the round hole of triangle locking piece is fixed through the bolt piston rod end of unblock cylinder, the round hole diameter of triangle locking piece slightly is greater than unblock cylinder piston rod front end diameter.
Furthermore, two guide weight rods are rectangular square steel tubes, and the upper ends of the guide weight rods are welded with steel sheets with round holes for fixing steel wire ropes
Furthermore, the unlocking cylinder is in communication connection with an electromagnetic valve, and the electromagnetic valve is in communication connection with a ground upper computer.
Has the advantages that:
the double-guide counterweight rod type air door locking device provided by the invention has the advantages that the piston rod of the unlocking cylinder only has two states of production extension and contraction, and no intermediate state is generated.
And secondly, when the unlocking cylinder is in an extension state, after one of the unlocking cylinder and the guide counterweight rod start to move, the triangular locking block immediately limits the other guide counterweight rod, the two air doors cannot be opened at the same time, even if the two air doors are opened at a small angle at the same time, and the locking function is reliable.
According to the double-guide counterweight rod type air door locking device provided by the invention, when the unlocking cylinder is in a contraction state, the locking state of the air door is released, the two guide counterweight rods do not influence each other, the two air doors do not influence each other, and the quick release of the locking state of the air door is realized.
Drawings
FIG. 1 is a front elevational view of the latch of the present invention in the latched condition;
FIG. 2 is a left side elevational view of the latch of the present invention in the latched condition;
FIG. 3 is a top plan view of the latch of the present invention in the latched condition;
FIG. 4 is a top plan view of the latch of the present invention in an unlatched condition;
FIG. 5 is a schematic view of the cam block configuration of the locking apparatus of the present invention;
fig. 6 is a schematic view of the configuration of the guide weight bar of the latching device of the present invention.
In the figure, 1, a universal steel wire rope pulley, 2, a shell, 301, a left guide counterweight rod, 302, a right guide counterweight rod, 401, an upper guide bearing wheel, 402, a lower guide bearing wheel, 5, a triangular locking block, 6, an unlocking cylinder, 7, a cylinder fixing support, 801, an upper mounting hole, 802 and a lower mounting hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 6, a double-guiding counterweight type air door locking device is characterized by comprising a left universal steel wire rope pulley 101, a right universal steel wire rope pulley 102, a housing 2, a left guiding counterweight 301, a right guiding counterweight 302, an upper guiding bearing wheel 401, a lower guiding bearing wheel 402, a triangular locking block 5, an unlocking air cylinder 6, an air cylinder fixing support 7, an upper mounting hole 801 and a lower mounting hole 802, wherein the left guiding counterweight 301 and the right guiding counterweight 302 are mounted inside the housing; the middle shafts of the upper guide bearing wheel 401 and the lower guide bearing wheel 402 are fixed in the shell; left side direction counter weight pole and right side direction counter weight pole are rectangle square steel pipe, and the upper end welding has the steel sheet that has the round hole that fixed wire rope used, and the direction counter weight pole can carry out up-and-down motion under wire rope's drive when the air door switching, and the axle center of direction bearing wheel is fixed on the position line in the casing, can reduce frictional resistance during direction bearing wheel up-and-down motion, unblock cylinder fixed bolster are fixed on the casing, the unblock cylinder is fixed on the cylinder fixed bolster, the bolt fastening is used to the triangle locking piece unblock cylinder piston rod end, the round hole diameter of triangle locking piece slightly is greater than unblock cylinder piston rod front end diameter.
The triangular locking block is a machine tool machined part and is in the shape of an isosceles triangle with a bottom angle of 45 degrees, three angles of the triangular locking block are all subjected to fillet treatment, and a round hole is formed in the middle of the triangular locking block close to the top angle so as to be fixed to the top of a piston rod of the unlocking cylinder.
The triangular locking block 5 is arranged at the end of a piston rod of the unlocking cylinder 6, and the triangular locking block 5 can rotate around the piston rod of the unlocking cylinder 6; when the single-side air door is opened, the guide counterweight rod on the corresponding side can be driven to move;
during the shutting period, the triangular locking block 5 is located in the center above the left guide counterweight rod 401 and the right guide counterweight rod 402, when the left air door is opened, the corresponding left guide counterweight rod 401 is driven to move upwards through a steel wire rope, when the left guide counterweight rod 401 moves upwards, the triangular locking block 5 is pushed to the position above the right guide counterweight rod 402, and the triangular locking block 5 limits the movement of the right guide counterweight rod 402 and the corresponding air door thereof, so that the right air door is shut.
The piston rod of unblock cylinder 6 is in the extension state, works as left side direction counterweight 301 with when right side direction counterweight 302 moves simultaneously under the drive of corresponding air door, triangle lock piece 5 is by simultaneously left side direction counterweight 301 with right side direction counterweight 302 promotes and can't rotate, left side direction counterweight 301 with right side direction counterweight 302 all can't move.
The triangular locking block 5 is fixed at the front end of a piston rod of the unlocking cylinder 6 through a round hole on the triangular locking block, when the piston rod of the unlocking cylinder 6 is in an extension state, the triangular locking block 5 is positioned above the centers of the left guide counterweight rod 401 and the right guide counterweight rod 402, and the left guide counterweight rod 401, the right guide counterweight rod 402 and the corresponding air doors thereof can be locked with each other.
When a piston rod of the unlocking cylinder 6 is in a contraction state, the triangular locking block 5 leaves the upper movement range of the left guide counterweight rod 401 and the right guide counterweight rod 402 under the driving of the piston rod of the unlocking cylinder 6, the movement of the left guide counterweight rod 401 and the movement of the right guide counterweight rod 402 are not influenced mutually, and two corresponding air doors can be opened and closed freely.
The triangular locking block is a machine tool machined part and is in the shape of an isosceles triangle with a bottom angle of 45 degrees, three angles of the triangular locking block are all subjected to fillet treatment, and a round hole is formed in the middle of the triangular locking block close to the top angle so as to be fixed to the top of a piston rod of the unlocking cylinder.
When accidents such as fire disasters, gas outburst and the like happen underground, underground wind flow is regulated and controlled in an emergency mode, and the air door locking needs to be released and the two air doors are opened simultaneously. At the moment, the aboveground upper computer sends a release signal to the electromagnetic valve, the air door locking device supplies air to the unlocking cylinder 6 under the action of the electromagnetic valve, so that a piston rod of the unlocking cylinder 6 is retracted into the unlocking cylinder, the triangular locking block 5 is driven by the piston rod to be separated from the motion ranges of the two guide counterweight rods, at the moment, the motion of the left guide counterweight rod 301 and the motion of the right guide counterweight rod 302 are not influenced, namely the left air door and the right air door which are associated with the left air door are not influenced, and the left air door and the right air door can be opened.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (4)
1. The utility model provides a two guide counter weight rod-type air door blocking device which characterized in that: the locking device comprises a shell, universal steel wire rope pulleys, guide balance weight rods, guide bearing wheels, a triangular locking block, an unlocking cylinder and a cylinder fixing support, wherein mounting holes are respectively formed in the top and the bottom of the shell, the locking device is fixed on a roadway side through the mounting holes, the two universal steel wire rope pulleys are symmetrically arranged on the top of the shell, the two guide balance weight rods are symmetrically arranged in the shell, one end of each steel wire rope is connected with the corresponding guide balance weight rod, the other end of each steel wire rope bypasses the corresponding universal steel wire rope pulley to be connected with a corresponding air door, the unlocking cylinder is fixed on the cylinder support, the cylinder support is fixed on the shell, the triangular locking block is arranged at the end of a piston rod of the unlocking cylinder and can rotate around the piston rod of the unlocking cylinder, the axle centers of the two guide bearing wheels are fixed on a neutral line in the shell, and the, when the piston rod of unblock cylinder extends, triangle locking piece is located two direction counter weight pole directly over central authorities, triangle locking piece can be by its top to one side in addition when motion of one of them direction counter weight pole, the motion of the direction counter weight pole of restriction one side in addition, when the piston rod shrink of unblock cylinder, triangle locking piece leaves two directly over the direction counter weight pole.
2. The locking device of claim 1, wherein the triangular locking block is an isosceles triangle with a bottom angle of 45 degrees, three corners are all rounded, a circular hole is formed in the middle of the triangular locking block, the circular hole is formed in the middle of the triangular locking block and close to the top angle, a piston rod of the unlocking cylinder penetrates through the circular hole of the triangular locking block and is fixed to the end of the piston rod of the unlocking cylinder through a bolt, and the diameter of the circular hole of the triangular locking block is slightly larger than the diameter of the front end of the piston rod of the unlocking cylinder.
3. The locking device of claim 1, wherein the two guiding weight bars are rectangular square steel tubes, and a steel plate with a round hole for fixing the steel wire rope is welded to the upper end of the two guiding weight bars.
4. The dual directional counterweight rod damper latch of claim 1, wherein said unlatching cylinder is in communication with a solenoid valve, said solenoid valve being in communication with a ground-based computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341317.7A CN111520010B (en) | 2020-04-27 | 2020-04-27 | Double-guide counterweight rod type air door locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341317.7A CN111520010B (en) | 2020-04-27 | 2020-04-27 | Double-guide counterweight rod type air door locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111520010A true CN111520010A (en) | 2020-08-11 |
| CN111520010B CN111520010B (en) | 2021-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010341317.7A Active CN111520010B (en) | 2020-04-27 | 2020-04-27 | Double-guide counterweight rod type air door locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111520010B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485893A (en) * | 2021-12-24 | 2022-05-13 | 煤炭科学技术研究院有限公司 | Code identification system and method based on weight of barrel cover of sample barrel |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB453049A (en) * | 1935-02-02 | 1936-09-02 | Walker Brothers Wigan Ltd | Improvements in or relating to ventilating plant |
| CN2423405Y (en) * | 1999-04-08 | 2001-03-14 | 中国矿业大学 | Pneumatic disaster relief air door remote controller |
| CN201145289Y (en) * | 2007-11-26 | 2008-11-05 | 济南安塞自动化技术有限公司 | Air door baffle plate pneumatic actuating mechanism control device |
| CN202991101U (en) * | 2012-12-27 | 2013-06-12 | 浙江瑞工控制阀有限公司 | On-off control assembly for coal mine air door |
| CN203347826U (en) * | 2013-07-02 | 2013-12-18 | 济南中盾电气设备有限公司 | Mining double air door control device |
| US20140024304A1 (en) * | 2012-07-20 | 2014-01-23 | American Mine Door Co. | Mine ventilation door with wings and slidable or pocket personnel door |
| CN203717013U (en) * | 2014-01-20 | 2014-07-16 | 中国矿业大学 | Automatically-controlled pneumatic pressureless balance air door |
| CN204238966U (en) * | 2014-11-27 | 2015-04-01 | 哈尔滨理工大学 | Coal mine ventilation door machinery Self-closing lock device |
| CN108661713A (en) * | 2018-07-02 | 2018-10-16 | 中煤邯郸设计工程有限责任公司 | A kind of vertical ventilating shaft explosion-proof door inverted ventilation locking device |
| CN207974845U (en) * | 2018-03-21 | 2018-10-16 | 河南焦煤能源有限公司演马庄矿 | A kind of mine air door dual control air assisted opening device |
| CN208106475U (en) * | 2018-04-14 | 2018-11-16 | 刘贵生 | Underground coal mine vertical barrel Two-wheeled throttle locking device |
| CN109736871A (en) * | 2019-03-04 | 2019-05-10 | 中煤新集能源股份有限公司 | Underground coal mine crosses single-rail-hanger pneumatic air door |
-
2020
- 2020-04-27 CN CN202010341317.7A patent/CN111520010B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB453049A (en) * | 1935-02-02 | 1936-09-02 | Walker Brothers Wigan Ltd | Improvements in or relating to ventilating plant |
| CN2423405Y (en) * | 1999-04-08 | 2001-03-14 | 中国矿业大学 | Pneumatic disaster relief air door remote controller |
| CN201145289Y (en) * | 2007-11-26 | 2008-11-05 | 济南安塞自动化技术有限公司 | Air door baffle plate pneumatic actuating mechanism control device |
| US20140024304A1 (en) * | 2012-07-20 | 2014-01-23 | American Mine Door Co. | Mine ventilation door with wings and slidable or pocket personnel door |
| CN202991101U (en) * | 2012-12-27 | 2013-06-12 | 浙江瑞工控制阀有限公司 | On-off control assembly for coal mine air door |
| CN203347826U (en) * | 2013-07-02 | 2013-12-18 | 济南中盾电气设备有限公司 | Mining double air door control device |
| CN203717013U (en) * | 2014-01-20 | 2014-07-16 | 中国矿业大学 | Automatically-controlled pneumatic pressureless balance air door |
| CN204238966U (en) * | 2014-11-27 | 2015-04-01 | 哈尔滨理工大学 | Coal mine ventilation door machinery Self-closing lock device |
| CN207974845U (en) * | 2018-03-21 | 2018-10-16 | 河南焦煤能源有限公司演马庄矿 | A kind of mine air door dual control air assisted opening device |
| CN208106475U (en) * | 2018-04-14 | 2018-11-16 | 刘贵生 | Underground coal mine vertical barrel Two-wheeled throttle locking device |
| CN108661713A (en) * | 2018-07-02 | 2018-10-16 | 中煤邯郸设计工程有限责任公司 | A kind of vertical ventilating shaft explosion-proof door inverted ventilation locking device |
| CN109736871A (en) * | 2019-03-04 | 2019-05-10 | 中煤新集能源股份有限公司 | Underground coal mine crosses single-rail-hanger pneumatic air door |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485893A (en) * | 2021-12-24 | 2022-05-13 | 煤炭科学技术研究院有限公司 | Code identification system and method based on weight of barrel cover of sample barrel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111520010B (en) | 2021-08-27 |
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