CN216811755U - Self-discharging pressure impact-resistant air door - Google Patents
Self-discharging pressure impact-resistant air door Download PDFInfo
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- CN216811755U CN216811755U CN202220252434.0U CN202220252434U CN216811755U CN 216811755 U CN216811755 U CN 216811755U CN 202220252434 U CN202220252434 U CN 202220252434U CN 216811755 U CN216811755 U CN 216811755U
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Abstract
The utility model relates to a self-discharging pressure-resistant impact-resistant air door, which relates to the field of mine equipment. The utility model has the beneficial effects that: the direction and the quantity of the wind flow in the laneways on both sides are controlled by the air door, so that the short circuit of the wind flow is prevented. When the door leaf is impacted by the shock wave generated by explosive blasting, the free door leaf releases the shock wave impact energy to pass through, so that the damage to the door body caused by the fact that the pressure of the received shock wave exceeds the bearing capacity of the material strength of the door leaf is avoided. When the energy of the shock waves is released, the free door leaf is closed by self under the gravity action of the free door leaf counter weight hung on the free door leaf, and the isolation effect on the wind current in the laneways at the two sides of the door leaf is continuously achieved.
Description
Technical Field
The utility model relates to the technical field of mine equipment, in particular to a self-discharging pressure impact-resistant air door.
Background
The air door is one of main underground mine ventilation facilities, and the air flow is controlled by arranging the air door to achieve air volume distribution or block certain channels so that the air flows in the specified direction. If the air door is improperly arranged or fails to meet the standard, the air flow of the mine is disturbed, the air quantity of the mining working face is insufficient, and the expected purpose of the air door cannot be achieved.
According to different purposes and opening modes of the air door, the air door can be divided into a common air door, an adjusting air door, an automatic air door and a reverse air door. The common air door is used for cutting off the air flow of the roadway, is opened by manpower, is closed by self by depending on dead weight and air pressure difference, and is usually arranged in the roadway for pedestrians or the roadway with less driving times. The structure of the air damper is similar to that of a common air damper, and only one air damper window is arranged above the air damper to limit the passing air quantity in a roadway. The automatic air door is an air door which is automatically opened and closed by depending on external force, and is suitable for a roadway through which mine cars frequently pass. The reverse air door is arranged between main air inlet roadways of a mine, the reverse air door is arranged at the same time, the reverse air door is opened normally and closed during counter wind, and the reverse air door can be divided into a counter wind reverse air door and an outburst prevention reverse air door.
Part of the air doors are arranged near the roadway driving working face or the stope room and are easily influenced by a large amount of explosive blasting shock waves; the material of the common air door can not bear the blasting impact force, the structure is complex and is easy to be damaged by the blasting impact wave, the air door can not play the due air flow management role, air leakage or air flow short circuit is caused, the normal ventilation of a mine is influenced, and the normal production of the mine is directly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of how to reduce the influence of blasting impact on an air door.
The technical scheme for solving the technical problems is as follows: the utility model provides a self-discharging presses air door that shocks resistance, includes door frame, door leaf, free door leaf and free door leaf counter weight, the door leaf hinge install in the door frame and with the door frame can dismantle the connection, the pressure release hole has on the door leaf, the upper end of free door leaf through two-way hinge with the upper end of pressure release hole is articulated, the lower extreme of free door leaf is fixed with free door leaf counter weight.
The beneficial effects of the utility model are: the self-pressure-relief impact-resistant air door is arranged at the position of the roadway connected between the two wind direction roadways, so that the direction and the quantity of wind flow in the roadways on two sides are controlled, and the short circuit of the wind flow is prevented. When blasting operation is carried out to somewhere in the air door both sides tunnel, the door leaf sets up free door leaf through on the door leaf and releases shock wave impact energy when receiving the shock wave impact that explosive blasting produced and pass through to the shock wave pressure of avoiding receiving has surpassed the bearing capacity of door leaf self material intensity, causes the damage of the door body, has lost the management and control function to door leaf both sides wind current. And after the shock wave energy is released, the free door leaf is closed by self under the gravity action of the free door leaf counter weight hung on the free door leaf, and the isolation effect on the wind current in the laneways at the two sides of the door leaf is continuously played.
On the basis of the technical scheme, the utility model can be further improved as follows.
Furthermore, the number of the door leaves is two, and two end walls of the two door leaves, which are far away from each other, are hinged to the left end and the right end of the door frame respectively.
The beneficial effect of adopting the further scheme is that: after the door leaves are opened, large-scale equipment such as a mine car can be used, when the door frame is large, two door leaves are arranged, so that the door frame is convenient to install, and the two sides of the door frame can be stressed in a balanced manner.
The door frame further comprises a limiting frame, wherein the limiting frame is fixedly mounted on one side of the door frame and is used for being abutted against the two door leaves and limiting the opening direction of the door leaves.
The beneficial effect of adopting the further scheme is that: the limit frame limits the door leaf to be opened only in the direction of the attack of the shock wave, so that the door leaf can share certain impact force. In addition, if the tunnel length at air door place is shorter, if open the door leaf in the reverse direction, can cut the rear passageway, make through the unable current turn of vehicle, consequently, the spacing frame of accessible restriction door leaf is only opened to the great one side in space.
Furthermore, the novel solar street lamp also comprises a pedestrian door leaf, wherein one door leaf is hinged with the pedestrian door leaf.
The beneficial effect of adopting the further scheme is that: the pedestrian door leaf is convenient for pedestrians to pass through.
Further, the opening direction of the door leaf is opposite to that of the pedestrian door leaf.
Further, the free door leaves on the two door leaves are bilaterally symmetrical with respect to the center line of the door frame.
The beneficial effect of adopting the further scheme is that: when the blasting shock wave is faced, the two door leaves can be evenly decompressed.
Further, the free door leaf is located at an upper portion of the door leaf.
The beneficial effect of adopting the further scheme is that: the free door leaf is located the upper portion of door leaf, in order to prevent to meet the sudden increase of wind pressure in the emergency underworkings, when will free door leaf back-open, near the air door just someone, cause the object to strike the injury.
Furthermore, the opening and closing angle of the bidirectional hinge is-80 degrees to 80 degrees.
The tunnel door is characterized by further comprising an arch part sealing steel plate and two concrete door columns, wherein the arch part sealing steel plate is fixed between the top of the door frame and the top wall of a tunnel, and the concrete door columns are respectively fixed between two sides of the door frame and the side walls of the tunnel on two sides; the door frame, the door leaf and the free door leaf are all made of steel.
The beneficial effect of adopting the further scheme is that: the door frame installation intensity is high, can effectively keep out the impact force that the blast impact given.
Further, still including consolidating the stock, the door frame is through a plurality of consolidate the stock and tunnel fixed connection.
The beneficial effect of adopting the further scheme is that: the door frame installation intensity is high.
Drawings
FIG. 1 is a front view of the self-relieving impact damper of the present invention;
FIG. 2 is a top view of the self-dumping impact resistant damper of the present invention;
fig. 3 is a side view of the self-dumping impact damper of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a door frame; 2. a door leaf; 3. a pedestrian door leaf; 4. a free door leaf; 5. free door leaf counterweight; 6. reinforcing the anchor rod; 7. an arch-closing steel plate; 8. a concrete door post; 9. and a limiting frame.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 3, the present embodiment provides a self-discharging impact-resistant air door, including a door frame 1, a door leaf 2, a free door leaf 4 and a free door leaf counterweight 5, where the door leaf 2 is installed in the door frame 1 in a hinged manner and detachably connected to the door frame 1, the door leaf 2 is provided with a pressure relief hole, an upper end of the free door leaf 4 is hinged to an upper end of the pressure relief hole through a bidirectional hinge, and the lower end of the free door leaf 4 is fixed with the free door leaf counterweight 5.
The self-pressure-relief impact-resistant air door is arranged at the position of the roadway connected between the two wind direction roadways, so that the direction and the quantity of wind flow in the roadways on two sides are controlled, and the short circuit of the wind flow is prevented. When the blast operation is carried out to somewhere in the air door both sides tunnel, door leaf 2 when receiving the shock wave impact that the explosive blasting produced, set up free door leaf 4 through on the door leaf 2 and release shock wave impact energy and pass through to the shock wave pressure of avoiding receiving has surpassed the bearing capacity of door leaf 2 self material intensity, causes the damage of the door body, has lost the management and control function to 2 both sides wind currents of door leaf. And after the shock wave energy is released, the free door leaf 4 is closed by self under the gravity action of the free door leaf counterweight 5 additionally hung on the free door leaf, and the isolation effect on the wind current in the laneways at the two sides of the door leaf 2 is continuously played.
Specifically, the door leaf 2 is detachably connected to the door frame 1 through a first bolt or other type of door lock.
Specifically, when no tramcar or large equipment passes through, the door leaf 2 is locked with the door frame 1 through a first bolt; when a mine car passes through, the first bolt can be opened, so that the door leaf 2 is opened.
On the basis of the above scheme, as shown in fig. 1, two door leaves 2 are provided, and two end walls of the two door leaves 2 that are away from each other in the horizontal direction are respectively hinged to the left end and the right end of the door frame 1.
After the door leaves 2 are opened, large-scale equipment such as a mine car can be used, when the door frame 1 is large, the two door leaves 2 are arranged, so that the door frame is convenient to install, and the two sides of the door frame 1 can be stressed in a balanced manner.
Specifically, the door leaf 2 is hinged to the door frame 1 through a hinge.
On the basis of the above scheme, as shown in fig. 3, the door frame further includes a limiting frame 9, the limiting frame 9 is fixedly installed on one side of the door frame 1, and the limiting frame 9 is used for abutting against the two door leaves 2 and limiting the opening direction of the two door leaves.
The limit frame 9 limits the door leaf 2 to open only in the direction of the incoming shock wave, so that the door leaf 2 can share certain impact force. In addition, if the tunnel length at air door place is shorter, if reverse opening door leaf 2, can cut the rear passageway, make the unable current turn of vehicle, consequently, accessible spacing frame 9 restriction door leaf 2 only opens to the great one side in space.
Specifically, since one side of the door 2 is blocked by the limiting frame 9, the door 2 can be opened only to the other side.
On the basis of the scheme, the novel door leaf structure further comprises a pedestrian door leaf 3, wherein one door leaf 2 is hinged with the pedestrian door leaf 3.
The pedestrian door leaf 3 is convenient for pedestrians to pass through.
Specifically, the pedestrian door leaf 3 is detachably connected with the door leaf 2 through a second bolt. When no pedestrian passes through, the pedestrian door leaf 3 is locked with the door leaf 2 through the second bolt, and airflow is prevented from passing through.
In addition to the above, as shown in fig. 2, the opening direction of the door 2 is opposite to that of the pedestrian door 3.
Specifically, the pedestrian door leaf 3 is hinged to the door leaf 2 through an one-way hinge, so that one-way opening is achieved.
Specifically, since one side of the door 2 is blocked by the stopper frame 9, the door 2 can be opened only to the other side thereof, and the pedestrian door 3 is opened to one side of the door 2. If the door 2 is opened only in the direction in which the shock wave comes, the pedestrian door 3 is opened in the direction away from the shock wave.
In addition to the above, as shown in fig. 1, the free door leaves 4 of the two door leaves 2 are symmetrical with respect to the center line of the door frame 1.
In the face of a blast shock, both door leaves 2 can be relieved of pressure uniformly. Specifically, on each door leaf 2, there is at least one free door leaf 4, the free door leaves 4 on each door leaf 2 can be distributed in any arrangement mode, and the free door leaves 4 on the two door leaves 2 are symmetrical. In one particular embodiment, as shown in fig. 1, the free leaves 4 on each leaf 2 are distributed in a rectangular array.
On the basis of the above-mentioned solution, the free door leaf 4 is located above the door leaf 2.
On the basis of the scheme, as shown in fig. 3, the opening and closing angle of the bidirectional hinge is-80 degrees to 80 degrees.
Specifically, the structure of the bidirectional hinge can be realized by adopting the prior art. Its limited of angle that opens and shuts can have the multiple mode to realize, in one of them concrete embodiment, two-way hinge can set up the angle stopper respectively in the both sides of direction of rotation, when free door leaf 4 rotates to when with the angle stopper butt, the further rotation of free door leaf 4 of angle stopper restriction.
On the basis of the scheme, the door frame further comprises an arch part sealing steel plate 7 and two concrete door columns 8, wherein the arch part sealing steel plate 7 is fixed between the top of the door frame 1 and the top wall of a roadway, and the concrete door columns 8 are respectively fixed between two sides of the door frame 1 and the side walls of the roadway on the two sides; the door frame 1, the door leaf 2 and the free door leaf 4 are all made of steel.
The door frame 1 has high installation strength and can effectively resist the impact force given by blasting impact. The gap between the door frame 1 and the roadway wall is sealed by the arch sealing steel plate 7 and the two concrete door columns 8, and airflow is prevented from passing through.
On the basis of the scheme, the door frame further comprises a reinforcing anchor rod 6, and the door frame 1 is fixedly connected with a roadway through the reinforcing anchor rod 6 in a plurality of ways. The door frame 1 has high installation strength.
In a specific embodiment of the utility model, the mine underground ventilation system adopts a mode that air is supplied from the center of a main slope way, air is supplied upwards from the middle to the top through an outsourcing transportation roadway and the like, and then air is exhausted to the ground surface through two wing return air shafts. In the process, in order to facilitate the passing of operation vehicles and personnel, the extravein transport lane is connected with the main slope way through the connecting lane, the short circuit of a ventilation system can be caused, and in order to realize ventilation management, the ventilation door is arranged at the connecting lane to play a role in managing wind current. Considering that more underground blasting operations are performed, when the tunnel wind pressure instantly generates a sudden change phenomenon caused by explosive blasting in a mine, the self-pressure-discharging impact-resistant air door is adopted, so that the pressure of impact waves caused by the sudden change of the wind pressure acting on the door leaf 2 is effectively released, the pressure intensity on two sides of the door leaf 2 is balanced, the integrity and functionality of the air door are guaranteed, and the control on wind flow and the stability of ventilation are ensured.
Wherein, door leaf 2 is connected on door frame 1 through heavy two-way hinge, and door leaf 2 passes through door frame 1, consolidates stock 6, arch portion closed steel sheet 7 and concrete door post 8 and is connected as a whole with the tunnel wall, and door leaf 2 adopts thickening type shaped steel as frame, sheet steel welding as the panel on shaped steel, both supports weight itself, keeps out the impact force that blast shock wave gave again through self intensity.
Specifically, the door 2 uses a square pipe with a specification of 100 × 4mm as an outer frame, and a steel plate with a thickness of 4mm as a face plate. Considering that the door leaf 2 has a large self weight and is often impacted by blasting shock waves, a square pipe with the specification of 100 × 4mm or an angle steel with the specification of more than 90mm is used for manufacturing a supporting framework in the process of processing the air door so as to prevent the door leaf 2 from deforming in the transportation and use processes. The mounting position of the pedestrian door leaf 3 is reserved at the lower position in the middle of one door leaf 2, and a sufficient pressure relief hole position is reserved at the upper parts of the two door leaves 2.
Specifically, the free door leaf 4 uses a square tube of 40 × 60 × 4mm specification as a framework, and a 4mm thick steel plate as a panel. And hinge on door leaf 2 through the hinge, consider that the impact force that the hinge received is great, the hinge selects for use heavy hinge.
The door handle of door leaf 2 and first keeper, the second keeper and the door handle of people's bank of china door leaf 3 all use thick wall round steel and thick steel tube processing, prevent to receive to take place to warp after assaulting, unable normal use.
According to the self-pressure-discharging impact-resistant air door, the functions of the air door are realized, the damage of impact waves to the door leaf 2 is reduced, the maintenance amount of the air door is reduced, and the management and control of air flow in roadways on two sides of the air door are ensured. The self-discharging pressure impact-resistant air door in the embodiment is obtained after being used in the deep mining engineering of iron ore in the heptagonal well of the Bolun mining industry in the Subei county:
the average monthly maintenance frequency of the air door of the deep iron ore mining project of the heptagonal well is not less than 3, the labor cost can be saved by 0.5 ten thousand yuan per month, and the labor cost is predicted to be saved by 3 ten thousand yuan according to the calculation of 6 months of usage. In addition, the effective management of the ventilation system can ensure the high-efficiency and orderly discharge of harmful gases such as dust, blast smoke, oil smoke, carbon dioxide and the like on the mining working face, and guarantee is provided for the safety efficiency of labor production.
Since the self-discharging pressure impact-resistant air door is used for the iron ore in the heptagonal well, compared with the traditional equivalent engineering, the cost is saved, the smoke exhaust speed is accelerated, the production safety is guaranteed, and the labor production efficiency is improved.
From release air door that shocks resistance simple structure, the practicality is strong, has better application prospect.
In the description of the present invention, it should be noted that the terms "center", "thickness", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The self-discharging pressure impact-resistant air door is characterized by comprising a door frame (1), a door leaf (2), a free door leaf (4) and a free door leaf counterweight (5), wherein the door leaf (2) is hinged to the inside of the door frame (1) and detachably connected with the door frame (1), a pressure relief hole is formed in the door leaf (2), the upper end of the free door leaf (4) is hinged to the upper end of the pressure relief hole through a bidirectional hinge, and the free door leaf counterweight (5) is fixed to the lower end of the free door leaf (4).
2. The self-discharging impact-resistant air door according to claim 1, wherein the number of the door leaves (2) is two, and two end walls of the two door leaves (2) away from each other are hinged to the left end and the right end of the door frame (1), respectively.
3. The self-discharging impact-resistant air door according to claim 2, further comprising a limiting frame (9), wherein the limiting frame (9) is fixedly mounted on one side of the door frame (1), and the limiting frame (9) is used for abutting against the two door leaves (2) and limiting the opening direction of the two door leaves.
4. The self-discharging impact-resistant air door according to claim 3, further comprising a pedestrian door leaf (3), wherein one of the door leaves (2) is hinged with the pedestrian door leaf (3).
5. The self-discharging impact-resistant air door according to claim 4, characterized in that the opening direction of the door leaf (2) is opposite to that of the pedestrian door leaf (3).
6. The self-discharging impact-resistant air door according to claim 2, wherein the free door leaves (4) of the two door leaves (2) are symmetrical left and right with respect to the center line of the door frame (1).
7. A self-dumping impact damper according to any one of claims 1 to 6, wherein said free door leaf (4) is located at an upper portion of said door leaf (2).
8. The self-dumping impact damper according to any one of claims 1 to 6, wherein the opening and closing angle of the bidirectional hinge is-80 ° to 80 °.
9. The self-discharging pressure impact-resistant air door according to any one of claims 1 to 6, further comprising an arch sealing steel plate (7) and two concrete door pillars (8), wherein the arch sealing steel plate (7) is fixed between the top of the door frame (1) and the top wall of a roadway, and the concrete door pillars (8) are respectively fixed between two sides of the door frame (1) and the side walls of the roadway on the two sides; the door frame (1), the door leaf (2) and the free door leaf (4) are all made of steel.
10. The self-discharging impact-resistant air door according to any one of claims 1 to 6, further comprising a reinforcing anchor rod (6), wherein the door frame (1) is fixedly connected with a roadway through a plurality of reinforcing anchor rods (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220252434.0U CN216811755U (en) | 2022-02-07 | 2022-02-07 | Self-discharging pressure impact-resistant air door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220252434.0U CN216811755U (en) | 2022-02-07 | 2022-02-07 | Self-discharging pressure impact-resistant air door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216811755U true CN216811755U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220252434.0U Active CN216811755U (en) | 2022-02-07 | 2022-02-07 | Self-discharging pressure impact-resistant air door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216811755U (en) |
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- 2022-02-07 CN CN202220252434.0U patent/CN216811755U/en active Active
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