CN109826506B - Automatic locking device for vertical shaft explosion-proof cover anti-wind - Google Patents
Automatic locking device for vertical shaft explosion-proof cover anti-wind Download PDFInfo
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- CN109826506B CN109826506B CN201910267100.3A CN201910267100A CN109826506B CN 109826506 B CN109826506 B CN 109826506B CN 201910267100 A CN201910267100 A CN 201910267100A CN 109826506 B CN109826506 B CN 109826506B
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Abstract
The utility model relates to an automatic locking device for anti-wind of an explosion-proof cover of a vertical shaft, which is arranged around the edge of the explosion-proof cover and comprises at least three groups of locking mechanisms uniformly arranged on the edge of the explosion-proof cover, wherein each locking mechanism comprises a compression rod and a pushing cylinder; the drill hole at the upper part of the pressure lever is pivoted with the pressure lever bracket, and the bottom of the drill hole is connected with the locking equipment; the locking assembly comprises a pressing block and a cushion block, the pressing block is welded at the bottom of the pressing rod, and the cushion block is fixed at the edge of the explosion-proof cover; the end part of the piston rod of the pushing cylinder is rotationally connected with a push rod, and the free end of the push rod is rotationally connected with a compression rod, so that the push rod and the compression rod are driven to reciprocate by the extension and retraction of the piston rod. The pushing cylinder drives the compression bar to move through retraction and expansion, so that the pressing block in the locking assembly is separated from the cushion block and is tightly pressed, and the explosion-proof cover is loosened and locked. The air cylinders are controlled in the same way through the air compressor, automatic remote control is achieved, and manpower and financial resources are saved.
Description
Technical Field
The utility model relates to the technical field of mine explosion-proof covers, in particular to an automatic locking device for anti-wind of a vertical shaft explosion-proof cover.
Background
The explosion-proof cover is an important part for protecting the main ventilation fan of the mine from being damaged and ensuring ventilation safety, and generally consists of an explosion-proof cover, a wind reversing device, a heavy hammer device and the like. When the fire disaster occurs underground and the wind is required to be reversed, the wind reversing device is in a locking state, the explosion-proof cover is pressed and locked, and the explosion-proof cover cannot rotate. The anti-wind device is of a pressing plate type, the pressing plate around the anti-explosion cover is fastened by bolts to fix the anti-explosion cover during anti-wind, the operation method is troublesome, and the time for fastening the anti-wind device is long. In addition, the requirements of changing the wind flow direction in a roadway within 10 min are not met in the first hundred twenty two regulations of the coal mine safety regulations, the purpose of rapid and reliable reverse wind is difficult to achieve, and ventilation accidents are easy to cause.
At present, a part of mines in China have researches on locking of an anti-explosion cover of a vertical well. The utility model of application number 201710555584.2 discloses an explosion-proof well lid of a main ventilation machine of a mine, which is characterized in that a motor drives a split well lid to rotate around a support to realize quick reset. The scheme greatly reforms the whole explosion-proof cover opening and closing structure, has large engineering quantity and high cost, and has low economic benefit and inconvenient popularization and application because the mine is required to be stopped during reforming.
The utility model has disclosed a colliery air shaft explosion vent locker of the application number 200520038151.2 in addition, its core is to utilize the electro-magnet to energize and produce the electromagnetic suction and initiate the linkage effect, make the tongue of pressing be pushed out under the spring effect, provide a horizontal effort and compress tightly at the explosion vent edge. The locking structure used in the scheme is that the pressing tongue is in friction contact with the explosion-proof door, the fixing is realized through friction force, the effect is not ideal, and the explosion-proof door is easy to push upwards under the action of positive pressure air flow during the back wind to cause the short circuit of the air flow.
In summary, the following disadvantages exist in the prior art: 1. the locking operation effect is not added when the main ventilator is in the reverse wind, and potential safety hazards are easily caused. 2. The explosion-proof cover has larger reconstruction amount, higher cost and low economic benefit.
Disclosure of Invention
The utility model aims to provide the automatic locking device for the anti-wind of the vertical shaft explosion-proof cover, which can automatically lock the explosion-proof cover during the anti-wind, prevent the wind flow from being short, reduce the occurrence of accidents, realize the automatic control of remote operation, and is convenient to use and saves the cost.
In order to achieve the technical purpose, the utility model adopts the following technical scheme: the utility model provides an automatic locking device is used in anti-wind of vertical explosion-proof lid, this automatic locking device sets up its characterized in that around explosion-proof lid edge: the anti-explosion device comprises at least three groups of locking mechanisms uniformly arranged on the edge of the anti-explosion cover, wherein each group of locking mechanisms comprises a locking assembly formed by a pressing block and a cushion block, the cushion block is arranged on the edge of the anti-explosion cover and provided with an upward inclined slope, and the pressing block slides back and forth on the inclined slope of the cushion block under the action of a driving mechanism so as to compress or separate the cushion block; the driving mechanism comprises a pressing rod and a pushing cylinder, the bottom end of the pressing rod is connected with the pressing block, the top end of the pressing rod is rotationally connected to a pressing rod support through a pin, the end part of a piston rod of the pushing cylinder is rotationally connected with a push rod, and the free end of the push rod is rotationally connected with the pressing rod, so that the extension and retraction of the piston rod drive the push rod and the pressing rod to reciprocate.
Further optimizing as the explosion-proof cover locking device: the top of the pressure lever, the free end of the push rod and the rotation center of the end part of the piston rod are parallel.
Further optimizing as the explosion-proof cover locking device: a circle of L-shaped clamping plate is arranged around the edge of the explosion-proof cover, the L-shaped clamping plate is provided with a vertical plate clung to the edge of the explosion-proof cover and a limiting plate protruding above the inclined slope, the limiting plate limits the limit position of the pressing block under the pushing of the driving mechanism, and the limit position is that the bottom surface of the pressing block is completely attached to the inclined slope.
Further optimizing as the explosion-proof cover locking device: the inclined slope is provided with a groove consistent with the movement direction of the pressing block, and the pressing block is provided with a convex rib corresponding to the groove, so that the convex rib keeps sliding in the groove in the sliding process of the pressing block on the inclined slope.
Further optimizing as the explosion-proof cover locking device: the surface of the inclined slope and the bottom surface of the pressing block are respectively provided with a wear-resistant rubber pad, and the wear-resistant rubber pads are correspondingly distributed on two sides of the groove and the convex edges so as to enhance the tightness of pressing between the groove and the convex edges.
Further optimizing as the explosion-proof cover locking device: the steel plate is welded at the bottom end of the compression bar and is connected with the pressing block through the bolt, and the top end drilling hole is rotationally connected with the compression bar bracket through the pin.
Further optimizing as the explosion-proof cover locking device: the upper part of the compression bar support is welded with a fixing plate for pivoting with the top of the compression bar, and the bottom end of the compression bar support is welded with an iron plate fixed on the ground through anchor bolts.
Further optimizing as the explosion-proof cover locking device: the bottom end of the pushing cylinder is fixedly connected with a cylinder base, the lower end of the cylinder base is fixedly connected with a cylinder bracket, and an iron plate is welded at the bottom of the cylinder bracket and is fixed on the ground through an anchor bolt.
Further optimizing as the explosion-proof cover locking device: the pressing block and the cushion block are manufactured by adopting a liner made of high-strength heat-resistant resin or carrier resin.
Advantageous effects
1. According to the explosion-proof cover locking device, the compression bar is pushed to move back and forth along a certain radian through the reciprocating motion of the pushing cylinder, the locking component is connected to the bottom of the compression bar, the pressing block in the locking component moves back and forth along with the compression bar while the compression bar moves, and the cushion block arranged at the edge of the explosion-proof cover is pressed or released, so that the locking and releasing of the explosion-proof cover are realized. The explosion-proof cover can be effectively prevented from being propped open under the action of positive pressure wind flow when in counter wind so as to cause short circuit of wind flow. The device is simple and easy to realize, convenient to use and cost-saving.
2. The anti-explosion cover locking device is provided with a circle of L-shaped clamping plates around the edge of the anti-explosion cover, the L-shaped clamping plates are provided with vertical plates clung to the edge of the anti-explosion cover and limit plates protruding above the inclined slope, the limit plates limit the limit positions of the pressing blocks under the pushing of the driving mechanism, and the limit positions are that the bottom surfaces of the pressing blocks are completely attached to the inclined slope. The anti-explosion cover can effectively prevent the pressing block from sliding over the head, and the pressing rod can directly and accurately act on the anti-explosion cover through the complete fit of the pressing block and the cushion block, so that the locking of the anti-explosion cover can be effectively realized. The stability of the device is improved, and the occurrence rate of accidents in the process of wind reversing is reduced.
3. The explosion-proof cover locking device is provided with the groove which is consistent with the movement direction of the pressing block on the inclined slope surface, and the pressing block is provided with the convex rib which corresponds to the groove, so that the convex rib keeps sliding in the groove in the sliding process of the pressing block on the inclined slope surface, the dislocation of the pressing block can be effectively prevented, and more accurate locking is realized.
4. The surface of the inclined slope and the bottom surface of the pressing block in the locking component of the explosion-proof cover locking device are respectively provided with the wear-resistant rubber pads, and the wear-resistant rubber pads are correspondingly distributed on two sides of the groove and the convex edge, so that the tightness of pressing between the groove and the convex edge is enhanced, the friction is increased, the pressure is buffered, and the locking effect of the explosion-proof cover can be better realized.
5. The explosion-proof cover locking device provided by the utility model adopts the air compressor to provide a unified air source to synchronously control the plurality of air cylinders to work, so that the automatic control and the remote one-key operation are realized.
6. The cushion block in the locking component of the explosion-proof cover locking device is made of the liner made of the high-strength heat-resistant resin or the carrier resin, has good heat resistance, is suitable for mine anti-wind operation, and has high strength and durability.
Drawings
FIG. 1 is a schematic view of the locking mechanism of the explosion-proof cover locking device of the present utility model;
FIG. 2 is a schematic view of embodiment 2 of the explosion proof cover locking device of the present utility model;
FIG. 3 is a schematic view showing the structure of a spacer block in an embodiment 2 of the locking device for an explosion-proof cover according to the present utility model;
fig. 4 is an enlarged partial schematic view of a in the explosion-proof cover locking device of the present utility model.
The marks in the figure: 1. the anti-explosion device comprises a compression bar support, 101, a fixing plate, 2, a cylinder support, 3, a pushing cylinder, 301, a piston rod, 4, a cylinder base, 5, a push rod, 6, a compression bar, 7, a locking component, 701, a pressing block, 702, a cushion block, 703, an inclined slope, 704, a groove, 705, a wear-resistant rubber pad, 8, an anchor bolt, 9, an L-shaped clamping plate, 901, a vertical plate, 902, a limiting plate, 10 and an anti-explosion cover.
Detailed Description
The utility model is further explained below with reference to examples and figures.
Example 1
An automatic locking device for anti-wind of an explosion-proof cover of a vertical shaft, as shown in fig. 2, is arranged around the edge of the explosion-proof cover 10, and is characterized in that: the anti-explosion device comprises at least three groups of locking mechanisms uniformly arranged on the edge of the anti-explosion cover 10, wherein each group of locking mechanisms comprises a locking assembly 7 formed by a pressing block 701 and a cushion block 702, the cushion block 702 is fixedly arranged on the edge of the anti-explosion cover 10 through bolts and is provided with an upward inclined slope 703, a certain included angle is formed between the inclined slope 703 and a horizontal plane, the smaller the included angle is, the larger the pressure of the pressing block 701 on the vertical direction of the cushion block 702 is, the anti-explosion cover 10 is locked under the action of force, and the short circuit of wind flow caused by the propping up of the anti-explosion cover 10 under the action of positive pressure wind flow during the anti-wind can be effectively prevented; the pressing block 701 slides reciprocally on the inclined slope 703 of the cushion block 702 under the action of a driving mechanism, so as to realize the compression or separation of the cushion block 702; the driving mechanism comprises a pressing rod 6 and a pushing cylinder 3, a steel plate is welded at the bottom end of the pressing rod 6 and fixedly connected with a pressing block 701 through a bolt, the top end of the pressing rod is rotatably connected to a pressing rod support 1 through a pin, the end part of a piston rod 301 of the pushing cylinder 3 is rotatably connected with a push rod 5, and the free end of the push rod 5 is rotatably connected with the pressing rod 6, so that the extension and retraction of the piston rod drive the push rod 5 and the pressing rod 6 to reciprocate. The pressing block 701 is driven by the pressing rod 6 to press and separate the cushion block 702.
The top of the compression bar 6, the free end of the push bar 5 and the rotation center of the end of the piston rod 301 are parallel, and rotate on the same vertical plane, so as to realize the continuity of acting force.
The specific action states of the explosion-proof cover locking device are as follows: when the pushing cylinder 3 is in a compressed state, the pressing block 701 in the locking assembly 7 is separated from the cushion block 702, the periphery of the explosion-proof cover 10 has no pressure effect, and normal ventilation of a mine can be carried out; when the pushing cylinder 3 expands, the piston rod 301 drives the push rod 5 and the compression rod 6 to reciprocate, the pressing block 701 is driven by the compression rod 6 to compress the cushion block 702, and the cushion block 703 is used for carrying out component force to the explosion-proof cover 10 to carry out component force vertically downwards, so that the explosion-proof cover 10 is locked, and the safe performance of the anti-wind work is realized.
Example 2
This embodiment is an improvement on the basis of embodiment 1, as shown in fig. 1 and 4, a circle of L-shaped clamping plates 9 are arranged around the edge of the explosion-proof cover 10, and the L-shaped clamping plates 9 are provided with vertical plates 901 closely attached to the edge of the explosion-proof cover 10 and limiting plates 902 protruding above the inclined slope 703, and the limiting plates 902 limit the limit positions of the pressing blocks 701 under the pushing of the driving mechanism, wherein the limit positions are that the bottom surfaces of the pressing blocks 701 are completely attached to the inclined slope 703. The anti-explosion cover can effectively prevent the pressing block from sliding over the head, and the pressing rod can directly and accurately act on the anti-explosion cover through the complete fit of the pressing block and the cushion block, so that the locking of the anti-explosion cover can be effectively realized.
In order to further lock the explosion-proof cover 10 and prevent the displacement of the pressing block 701 in the pushing process of the pressing rod 6, as shown in fig. 3, a groove 704 which is consistent with the movement direction of the pressing block 701 is arranged on the inclined slope 703, and a convex rib corresponding to the groove 704 is arranged on the pressing block 701, so that the convex rib keeps sliding in the groove 704 in the sliding process of the pressing block 701 on the inclined slope 703; the dislocation of the pressing block 701 can be effectively prevented, and more accurate locking is realized.
In order to better realize the locking of the explosion-proof cover 10, strengthen the fixed effect to the explosion-proof cover 10, as shown in fig. 3, the surface of the slope 703 and the bottom surface of the pressing block 701 are both provided with wear-resistant rubber pads 705, and the wear-resistant rubber pads 705 are correspondingly distributed on two sides of the groove 704 and the convex edges, so as to enhance the tightness of the pressing between the two, increase the friction and buffer the pressure, and make the locking assembly more stable.
In order to make the rotation of the compression bar 6 more stable, the bottom end of the compression bar 6 is welded with a steel plate for being connected with the pressing block 701 through a bolt, and a top end drilling hole is rotationally connected with the compression bar bracket 1 through a pin. The compression bar bracket 1 is pivoted with the compression bar 6 through a fixing plate 101 welded at the upper part, and an iron plate welded at the bottom end of the compression bar bracket 1 is fixed on the ground through an anchor bolt 8.
In order to realize the steady operation of pushing the cylinder 3 in the use, the bottom of the pushing cylinder 3 is fixedly connected with a cylinder base 4 through bolts, the lower end of the cylinder base 4 is fixedly connected with a cylinder bracket 2 through bolts, and an iron plate is welded at the bottom of the cylinder bracket 2 and is fixed on the ground through anchor bolts 8.
In addition, the cushion block 702 and the pressing block 701 in the locking assembly 7 are made of high-strength heat-resistant resin or a liner made of carrier resin, so that the locking assembly is good in heat resistance, suitable for mine ventilation operation, high in strength and more durable.
This embodiment is the most preferred embodiment of the present utility model.
The specific implementation steps of the utility model are as follows:
1. the compression bar 6 is pushed by the pushing cylinder 3 to swing back and forth by taking a pin on the fixing plate 101 as a fulcrum, and when the pushing cylinder 3 retracts, the compression bar 6 is synchronously driven to rotate backwards, so that the pressing block 701 in the locking assembly 7 is separated from the cushion block 702, and the edge of the explosion-proof cover 10 is pressureless at the moment, and normal ventilation of a mine can be realized.
2. When the mine needs to be operated in the reverse wind, the air cylinder 3 is pushed to expand, the compression bar 6 is synchronously driven to swing forwards, the pressing block 701 in the locking assembly 7 at the bottom end of the compression bar 6 tightly abuts against the cushion block 703, the convex edge slides into the groove 704, the periphery of the explosion-proof cover 10 is locked at the moment, the explosion-proof cover 10 can be prevented from being opened during the reverse wind, and the reverse wind operation of the mine is facilitated.
3. The pushing cylinders 3 of the locking mechanisms are uniformly controlled by an air source provided by the air compressor, and a main ventilator worker can realize automatic remote operation.
Claims (7)
1. The utility model provides an automatic locking device is used in anti-wind of vertical explosion-proof lid, this automatic locking device sets up its characterized in that around explosion-proof lid (10) edge: the anti-explosion device comprises at least three groups of locking mechanisms uniformly arranged on the edge of an anti-explosion cover (10), wherein each group of locking mechanisms comprises a locking assembly (7) formed by a pressing block (701) and a cushion block (702), the cushion block (702) is arranged on the edge of the anti-explosion cover (10) and is provided with an upward inclined slope (703), and the pressing block (701) slides back and forth on the inclined slope (703) of the cushion block (702) under the action of a driving mechanism so as to compress or separate the cushion block (702); the driving mechanism comprises a pressing rod (6) and a pushing air cylinder (3), wherein the bottom end of the pressing rod (6) is connected with a pressing block (701), the top end of the pressing rod is rotationally connected to a pressing rod bracket (1) through a pin, the end part of a piston rod (301) of the pushing air cylinder (3) is rotationally connected with a push rod (5), and the free end of the push rod (5) is rotationally connected with the pressing rod (6) so that the push rod (5) and the pressing rod (6) are driven to reciprocate by the extension and retraction of the piston rod;
a circle of L-shaped clamping plates (9) are arranged around the edge of the explosion-proof cover (10), the L-shaped clamping plates (9) are provided with vertical plates (901) which are clung to the edge of the explosion-proof cover (10) and limiting plates (902) which protrude above the inclined slope (703), the limiting plates (902) limit the limit positions of the pressing blocks (701) under the pushing of the driving mechanism, and the limit positions are that the bottom surfaces of the pressing blocks (701) are completely clung to the inclined slope (703);
the inclined slope (703) is provided with a groove (704) consistent with the movement direction of the pressing block (701), and the pressing block (701) is provided with a convex rib corresponding to the groove (704) so that the convex rib keeps sliding in the groove (704) in the sliding process of the pressing block (701) on the inclined slope (703).
2. The automatic locking device for the anti-wind of the vertical shaft explosion-proof cover as claimed in claim 1, wherein: the top of the pressure lever (6), the free end of the push rod (5) and the rotation center of the end part of the piston rod (301) are parallel.
3. The automatic locking device for the anti-wind of the vertical shaft explosion-proof cover as claimed in claim 1, wherein: the surface of the inclined slope surface (703) and the bottom surface of the pressing block (701) are both provided with wear-resistant rubber pads (705), and the wear-resistant rubber pads (705) are correspondingly distributed on two sides of the groove (704) and the convex edges so as to enhance the compactness of pressing between the groove and the convex edges.
4. The automatic locking device for the anti-wind of the vertical shaft explosion-proof cover as claimed in claim 1, wherein: the bottom end of the compression bar (6) is welded with a steel plate and is connected with the pressing block (701) through a bolt, and a drill hole at the top end is rotationally connected with the compression bar bracket (1) through a pin.
5. The automatic locking device for the anti-wind of the vertical shaft explosion-proof cover as claimed in claim 1, wherein: the upper part of the compression bar bracket (1) is welded with a fixing plate (101) for pivoting with the top of the compression bar (6), and the bottom is welded with an iron plate fixed on the ground through an anchor bolt (8).
6. The automatic locking device for the anti-wind of the vertical shaft explosion-proof cover as claimed in claim 1, wherein: the pushing cylinder (3) bottom fixedly connected with cylinder base (4), cylinder base (4) lower extreme fixedly connected with cylinder support (2), cylinder support (2) bottom weld iron plate pass through rag bolt (8) to be fixed in ground.
7. The automatic locking device for the anti-wind of the vertical shaft explosion-proof cover as claimed in claim 1, wherein: the pressing block (701) and the cushion block (702) are manufactured by adopting a gasket made of high-strength heat-resistant resin or carrier resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910267100.3A CN109826506B (en) | 2019-04-03 | 2019-04-03 | Automatic locking device for vertical shaft explosion-proof cover anti-wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910267100.3A CN109826506B (en) | 2019-04-03 | 2019-04-03 | Automatic locking device for vertical shaft explosion-proof cover anti-wind |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109826506A CN109826506A (en) | 2019-05-31 |
| CN109826506B true CN109826506B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910267100.3A Active CN109826506B (en) | 2019-04-03 | 2019-04-03 | Automatic locking device for vertical shaft explosion-proof cover anti-wind |
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| CN (1) | CN109826506B (en) |
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| CN101943025A (en) * | 2009-07-07 | 2011-01-12 | 兖州煤业股份有限公司 | Vertical air shaft explosion protection door capable of quickly resetting |
| CN203603958U (en) * | 2013-10-21 | 2014-05-21 | 中国矿业大学 | Hydraulic inverted ventilation latching device for coal mine vertical air shaft explosion door |
| CN204386636U (en) * | 2015-01-07 | 2015-06-10 | 西安钧泰环保设备工程有限公司 | A kind of explosion-proof door of coal miine vertical shaft inverted ventilation 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 |
| CN208168919U (en) * | 2018-05-16 | 2018-11-30 | 新汶矿业集团有限责任公司 | A kind of hydraulic self-rotation pressing device |
| CN209942430U (en) * | 2019-04-03 | 2020-01-14 | 河南大有能源股份有限公司跃进煤矿 | Automatic locking device for vertical shaft explosion-proof cover reverse wind |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6955594B2 (en) * | 2003-06-27 | 2005-10-18 | Kennedy William R | Mine door system including an air pressure relief door |
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2019
- 2019-04-03 CN CN201910267100.3A patent/CN109826506B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943025A (en) * | 2009-07-07 | 2011-01-12 | 兖州煤业股份有限公司 | Vertical air shaft explosion protection door capable of quickly resetting |
| CN203603958U (en) * | 2013-10-21 | 2014-05-21 | 中国矿业大学 | Hydraulic inverted ventilation latching device for coal mine vertical air shaft explosion door |
| CN204386636U (en) * | 2015-01-07 | 2015-06-10 | 西安钧泰环保设备工程有限公司 | A kind of explosion-proof door of coal miine vertical shaft inverted ventilation locking device |
| CN208168919U (en) * | 2018-05-16 | 2018-11-30 | 新汶矿业集团有限责任公司 | A kind of hydraulic self-rotation pressing 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 |
| CN209942430U (en) * | 2019-04-03 | 2020-01-14 | 河南大有能源股份有限公司跃进煤矿 | Automatic locking device for vertical shaft explosion-proof cover reverse wind |
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| CN109826506A (en) | 2019-05-31 |
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