Mining air door

Abstract

The embodiment of the utility model provides a mine air door. The mine air door comprises an air door frame, a first door leaf, a second door leaf, a push rod and a connecting rod. The first door leaf and the second door leaf are arranged on the air door frame in a relative opening and closing mode, the air door frame is provided with a first hinge position point, the first door leaf is provided with a second hinge position point and a third hinge position point, and the first hinge position point and the second hinge position point are arranged on the same side of the first door leaf in the thickness direction. The third hinge point is arranged on the other side of the first door leaf in the thickness direction, and the second door leaf is provided with a fourth hinge point; the two ends of the push rod are hinged to the first hinge point and the second hinge point respectively, and the two ends of the connecting rod are hinged to the third hinge point and the fourth hinge point respectively, so that a connecting rod linkage structure is formed to drive the first door leaf and the second door leaf to be opened and closed in a linkage mode. Therefore, the mining air door provided by the embodiment of the utility model has the advantage of high use reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment for underground coal mines, in particular to a mine air door. Background Art

[0002] Mine dampers are used to supply sufficient fresh air underground to meet personnel's oxygen needs and dilute toxic and hazardous gases and dust to ensure safe production. Conventional mine dampers utilize rail-mounted systems. However, these systems are susceptible to deformation or jamming of the lower rails by rocks dropped from passing mine cars, preventing the dampers from closing and potentially damaging the motor. Furthermore, since the dampers are not secured below, they can sway significantly in strong winds, potentially damaging the motor when opening and closing, leading to a high failure rate. Utility Model Content

[0003] The present invention aims to solve, at least to a certain extent, one of the technical problems in the related art. To this end, an embodiment of the present invention provides a mine air door. The mine air door has a function of helping to improve the reliability of the air door.

[0004] The mining air door of the embodiment of the utility model comprises an air door frame, a first door leaf, a second door leaf, a push rod and a connecting rod.

[0005] The first door leaf and the second door leaf can be arranged on the damper frame to open and close relatively, and the damper frame has a first hinge point, and the first door leaf has a second hinge point and a third hinge point. The first hinge point and the second hinge point are arranged on the same side of the thickness direction of the first door leaf, and the third hinge point is arranged on the other side of the thickness direction of the first door leaf. The second door leaf has a fourth hinge point; the two ends of the push rod are respectively hinged to the first hinge point and the second hinge point, and the two ends of the connecting rod are respectively hinged to the third hinge point and the fourth hinge point, so as to form a connecting rod linkage structure to drive the first door leaf and the second door leaf to open and close in a linkage manner.

[0006] The mining damper of the present invention forms a linkage structure with a push rod, a connecting rod, a damper frame, a first door leaf, and a second door leaf. The push rod pushes the linkage structure during the transition process, thereby opening and closing the first and second door leaves. Compared with a track-type structure, the linkage structure is less susceptible to falling rocks. Therefore, the mining damper helps improve the reliability of the damper.

[0007] In addition, the use of a linkage structure also helps to achieve the first and second door leaves in the open, closed, and intermediate positions, which in turn helps to adjust the opening and closing area of ​​the damper to match the door leaf opening and closing angle required for vehicles and pedestrians to pass through. When the damper is opened or closed, the damper opening and closing is inconsistent, affecting the damper's airtightness and posing a safety hazard and ventilation hazard on site. This improves the versatility of the mine damper during use.

[0008] Therefore, the mining air door of the embodiment of the present invention has the advantage of improving versatility of use.

[0009] In some embodiments, the damper frame includes a door frame body and a first hinge seat protruding outward from the door frame body, the first hinge seat has the first hinge point, and one end of the push rod is hinged to the first hinge seat.

[0010] In some embodiments, the first door leaf includes a door leaf body and a second hinge seat and a third hinge seat arranged on the door leaf body, the second hinge seat has the second hinge point, the third hinge seat has the third hinge point, and the distance between the second hinge seat and the third hinge seat in the width direction of the mining air door is smaller than the distance between the first hinge seat and the second hinge seat.

[0011] In some embodiments, the second articulated seat includes an articulated seat body and one of a spherical articulated shaft and a spherical seat body provided on the articulated seat body, and the end of the push rod has the other of the spherical articulated shaft and the spherical seat body.

[0012] In some embodiments, the spherical seat body includes a first support and a second support that are spliced ​​together, the first support and the second support both have a receiving groove, and the receiving groove on the first support and the receiving groove on the second support are spliced ​​together to form a spherical receiving hole.

[0013] In some embodiments, the third hinge seat is generally L-shaped, and a third hinge point is formed on the third hinge seat. One end of the third hinge seat is connected to the first door leaf, and the other end of the third hinge seat is hinged to the connecting rod.

[0014] In some embodiments, when the damper is in an open state or a closed state, the third hinge point on the third hinge seat is located on the other side of the first door leaf.

[0015] In some embodiments, the first hinge point, the second hinge point, the third hinge point and the fourth hinge point are arranged near the top of the mining air door, and the third hinge point and the fourth hinge point are arranged at the same height.

[0016] In some embodiments, the push rod is an electric push rod, which includes a push rod body, an encoder and a servo driver, and the encoder and the servo driver are electrically connected to the motor of the electric push rod.

[0017] In some embodiments, the electric push rod includes a push rod body, a safety clutch, and an overload pressure sensor, and the motor of the push rod body senses signals from the safety clutch and the overload pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of a mining air door according to an embodiment of the present utility model.

[0019] Figure 2 yes Figure 1 Enlarged view at point A.

[0020] Figure 3 It is a top view of a mining air door according to an embodiment of the utility model, wherein the air door is in a closed state.

[0021] Figure 4 It is a top view of a mining air door according to an embodiment of the utility model, wherein the air door is in a semi-closed state.

[0022] Figure 5 It is a top view of a mining air door according to an embodiment of the present utility model, wherein the air door is in an open state.

[0023] Figure 6 This is an exploded view of the second articulated seat and the electric push rod in an embodiment of the present utility model.

[0024] Reference numerals:

[0025] Air door frame 1; first hinge seat 11; door frame body 12;

[0026] First door leaf 2; second hinge seat 21; hinge seat body 211; spherical hinge shaft 212;

[0027] The third hinge seat 22;

[0028] Second door leaf 3; fourth hinge point 31;

[0029] Push rod 4; spherical seat body 41;

[0030] Connecting rod 5. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0032] Reference below Figures 1-6 The invention describes a mine air door according to an embodiment of the present invention.

[0033] The mining air door of the embodiment of the utility model comprises an air door frame 1 , a first door leaf 2 , a second door leaf 3 , a push rod 4 and a connecting rod 5 .

[0034] The first door leaf 2 and the second door leaf 3 can be arranged on the damper frame 1 to open and close relatively, the damper frame 1 has a first hinge point, the first door leaf 2 has a second hinge point and a third hinge point, the first hinge point and the second hinge point are arranged on the same side of the thickness direction of the first door leaf 2, the third hinge point is arranged on the other side of the thickness direction of the first door leaf 2, and the second door leaf 3 has a fourth hinge point 31; the two ends of the push rod 4 are respectively hinged to the first hinge point and the second hinge point, and the two ends of the connecting rod 5 are respectively hinged to the third hinge point and the fourth hinge point 31, so as to form a connecting rod linkage structure to drive the first door leaf 2 and the second door leaf 3 to open and close in linkage.

[0035] The mining damper of the present invention is provided with a push rod 4, a connecting rod 5, a damper frame 1, a first door leaf 2, and a second door leaf 3 to form a connecting rod linkage structure. The push rod 4 pushes the connecting rod linkage structure during the transition process to realize the opening and closing of the first door leaf 2 and the second door leaf 3. Compared with the track-type structure, the structure of the present invention using the connecting rod 5 is relatively less affected by falling rocks. Therefore, the mining damper helps to improve the reliability of the damper.

[0036] In addition, the use of a linkage structure also helps to achieve the first door leaf 2 and the second door leaf 3 in the open, closed, and intermediate positions, thereby helping to adjust the opening and closing area of ​​the damper to match the door leaf opening and closing angle required for vehicles and pedestrians to pass through. When the damper is opened or closed, the damper opening and closing is inconsistent, affecting the damper's airtightness and posing a safety hazard and ventilation hazard on site. This improves the versatility of the mine damper during use.

[0037] Therefore, the mining air door of the embodiment of the present invention has the advantage of improving versatility of use.

[0038] like Figures 1 to 5 As shown, the damper frame 1 includes a door frame body 12 and a first hinge seat 11 protruding outwardly from the door frame body 12, and a first hinge point is provided on the first hinge seat 11. It is understood that one end of the push rod 4 is hinged to the first hinge seat 11.

[0039] The mining damper of the embodiment of the present invention is divided into a door frame 1 and a first hinge seat 11 provided on the door frame 12 and protruding outward. A first hinge point is formed on the protruding hinge seat, which facilitates normal cooperation with the push rod 4 and avoids interference between the push rod 4 and the door frame 12. Therefore, the mining damper of the embodiment of the present invention is easy to install and avoids interference.

[0040] like Figures 1 to 5 As shown, the first door leaf 2 includes a door leaf body and a second hinge seat 21 and a third hinge seat 22 arranged on the door leaf body, the second hinge seat 21 has a second hinge point, the third hinge seat 22 has a third hinge point, and the spacing between the second hinge seat 21 and the third hinge seat 22 in the width direction of the mining air door is smaller than the spacing between the first hinge seat 11 and the second hinge seat 21.

[0041] The mining damper of the present invention is constructed by dividing the first door leaf 2 into a door leaf body and a second hinge seat 21 and a third hinge seat 22 provided on the door leaf body. Furthermore, the spacing between the second hinge seat 21 and the third hinge seat 22 in the width direction of the mining damper is smaller than the spacing between the first hinge seat 11 and the second hinge seat 21. Consequently, the second hinge seat 21 and the third hinge seat 22 are located on the short side of the connecting rod 5. This helps avoid the problem of excessive space being occupied by the connecting rod 5 in the overall thickness of the mining damper, thereby achieving a compact design for the mining damper.

[0042] like Figure 1 and Figure 6 As shown, the second hinge seat 21 includes a hinge seat body 211 and one of a spherical hinge shaft 212 and a spherical seat body 41 disposed on the hinge seat body 211, and the end of the push rod 4 has the other of the spherical hinge shaft 212 and the spherical seat body 41. In other words, the second hinge seat 21 includes the spherical hinge shaft 212 disposed on the hinge seat body 211, and the end of the push rod 4 has the spherical seat body 41. Alternatively, the second hinge seat 21 includes the spherical seat body 41 disposed on the hinge seat body 211, and the end of the push rod 4 has the spherical hinge shaft 212.

[0043] The mining damper of the embodiment of the present utility model is universally matched between the push rod 4 and the second hinge seat 21 through the spherical hinge shaft 212 and the spherical seat body 41, thereby improving the flexibility of the match between the push rod 4 and the second hinge seat 21. Moreover, when the mining damper is opened or closed, the hinge point of the spherical structure can make the force points where the connecting rod 5 contacts the spherical hinge shaft 212 more uniform, avoiding single-point force and avoiding the deformation of the hinge shaft caused by the traditional structure, which leads to problems with the damper linkage, thereby affecting the airtightness of the damper and even causing the hinge shaft to break, causing safety hazards and ventilation hazards on site. Therefore, the mining damper of the embodiment of the present utility model has the advantage of further improving the reliability of the mining damper.

[0044] like Figure 1 and Figure 6 As shown, the spherical seat body 41 includes a first support and a second support that are assembled together. The first support and the second support both have a receiving groove. The receiving groove on the first support and the receiving groove on the second support are assembled together to form a spherical receiving hole.

[0045] The mining air door of the embodiment of the utility model has the advantages of high structural reliability and high assembly convenience, because the receiving groove on the first support and the receiving groove on the second support are combined to form a spherical receiving hole, which is matched with the spherical hinge shaft 212.

[0046] like Figures 1 to 5 As shown, the third hinge seat 22 is generally L-shaped, and a third hinge point is formed on the third hinge seat 22. One end of the third hinge seat 22 is connected to the first door leaf 2, and the other end of the third hinge seat 22 is hinged to the connecting rod 5.

[0047] The mining air door of the embodiment of the present invention is helpful to reduce the volume of the third hinged seat 22 by configuring the third hinged seat 22 to be substantially L-shaped.

[0048] like Figures 1 to 5 As shown, when the damper is in the open and closed states, the third hinge points on the third hinge seat 22 are both located on the other side of the first door leaf 2 .

[0049] The mining damper of the embodiment of the utility model is located on the other side of the first door leaf 2 in both the open and closed states through the third hinge point on the third hinge seat 22, thereby avoiding the problem of interference between the connecting rod 5 and the damper frame 1 when the damper is opened and closed during the state transition process.

[0050] like Figures 1 to 5 As shown, the first hinge point, the second hinge point, the third hinge point and the fourth hinge point 31 are arranged near the top of the mining air door, and the third hinge point and the fourth hinge point 31 are arranged at the same height.

[0051] The mining damper of the present invention prevents rockfall from interfering with the movement of the connecting rod linkage structure by positioning the hinge points at the upper end of the damper. The third and fourth hinge points 31 are positioned at the same height, resulting in improved structural stability and reliability.

[0052] Furthermore, the push rod 4 is an electric push rod 4 , which includes a push rod 4 body, an encoder and a servo driver. The encoder and the servo driver are electrically connected to the motor of the electric push rod 4 .

[0053] The electric push rod 4 includes a push rod 4 body, a safety clutch and an overload pressure sensor. The motor of the push rod 4 body senses the signals from the safety clutch and the overload pressure sensor.

[0054] The mining damper of the present invention is equipped with a safety clutch and an overload pressure sensor driven by an electric push rod 4. During the automatic opening and closing of the damper, the electric push rod 4 detects the torque value in real time. If the torque suddenly increases, it is determined that a vehicle or person is being trapped. The connecting rod linkage structure will immediately move in the opposite direction, providing safety protection for the damper itself and passing vehicles and pedestrians. As a result, the mining damper has the advantage of high safety.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0059] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0060] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A mine air door, characterized in that: include: A damper frame, a first door leaf and a second door leaf, wherein the first door leaf and the second door leaf are arranged on the damper frame so as to be relatively openable and closable, the damper frame having a first hinge point, the first door leaf having a second hinge point and a third hinge point, the first hinge point and the second hinge point being arranged on the same side in a thickness direction of the first door leaf, the third hinge point being arranged on the other side in the thickness direction of the first door leaf, and the second door leaf having a fourth hinge point; A push rod and a connecting rod, the two ends of the push rod are respectively hinged to the first hinge point and the second hinge point, and the two ends of the connecting rod are respectively hinged to the third hinge point and the fourth hinge point, so as to form a connecting rod linkage structure to drive the first door leaf and the second door leaf to open and close in a coordinated manner.

2. The mine air door according to claim 1, characterized in that: The damper frame includes a door frame body and a first hinge seat that is arranged on the door frame body and protrudes outward, and the first hinge seat has the first hinge point.

3. The mine air door according to claim 2, characterized in that: The first door leaf includes a door leaf body and a second hinge seat and a third hinge seat arranged on the door leaf body, the second hinge seat has the second hinge point, the third hinge seat has the third hinge point, and the distance between the second hinge seat and the third hinge seat in the width direction of the mining air door is smaller than the distance between the first hinge seat and the second hinge seat.

4. The mine air door according to claim 3, characterized in that: The second hinge seat includes a hinge seat body and one of the spherical hinge shaft and the spherical seat body provided on the hinge seat body, and the end of the push rod has the other of the spherical hinge shaft and the spherical seat body.

5. The mine air door according to claim 4, characterized in that: The spherical seat body includes a first support and a second support that are spliced ​​together. The first support and the second support both have a receiving groove. The receiving groove on the first support and the receiving groove on the second support are spliced ​​together to form a spherical receiving hole.

6. The mine air door according to claim 3, characterized in that: The third hinge seat is generally L-shaped, and a third hinge point is formed on the third hinge seat. One end of the third hinge seat is connected to the first door leaf, and the other end of the third hinge seat is hinged to the connecting rod.

7. The mining air door according to any one of claims 3 to 6, characterized in that: When the damper is in an open state or a closed state, the third hinge point on the third hinge seat is located on the other side of the first door leaf.

8. The mining air door according to any one of claims 1 to 6, characterized in that: The first hinge point, the second hinge point, the third hinge point and the fourth hinge point are arranged near the top of the mining air door, and the third hinge point and the fourth hinge point are arranged at the same height.

9. The mining air door according to any one of claims 1 to 6, characterized in that: The push rod is an electric push rod, which includes a push rod body, an encoder and a servo driver. The encoder and the servo driver are electrically connected to the motor of the electric push rod.

10. The mine air door according to claim 9, characterized in that: The electric push rod includes a push rod body, a safety clutch and an overload pressure sensor. The motor of the push rod body senses signals from the safety clutch and the overload pressure sensor.

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