Pressure relief equipment for mine

Abstract

The utility model relates to the technical field of mine pressure relief equipment, and discloses mine pressure relief equipment which comprises a base flange, a window plate and a driving structure, the base flange is installed in an air door and composed of a first flange and a second flange, grooves are formed in the upper inner wall and the lower inner wall of the second flange, and the window plate is installed in the first flange. A boss is arranged on the inner side wall of one side of the first flange, a concave table is arranged on the inner side wall of one side of the second flange, and the concave table and the boss are arranged in a staggered mode. The window plate is arranged between the concave tables and the bosses in a staggered mode, barrier strips are arranged on the periphery of the window plate, the upper side face and the lower side face of the window plate penetrate through the side walls of the two grooves through pin shafts to be connected with the two ends of a rotating rod, the rotating rod is in a concave shape, and the concave rod part of the rotating rod is fixedly arranged on one face of the window plate; the driving structure is arranged on the window plate located on the same face with the rotating rod, or the driving structure is connected with the rotating rod. The pressure relief device solves the problem that labor is wasted when the pressure relief device is manually started for pressure relief, and the pressure relief device can be easily started.

Description

Technical Field

[0001] The utility model relates to the technical field of mine pressure relief equipment, in particular to a mine pressure relief equipment. Background Art

[0002] During coal mining, the depth of the mine is relatively deep, and the mine ventilation system is an indispensable structure. The mine ventilation system is the key to ensuring mine safety. The mine damper is an important structure in the mine ventilation system. The damper is used to block the airflow in the tunnel, ensuring the stability of the mine ventilation system, while also reducing ineffective air leakage, providing fresh air, and ensuring the safety of coal miners.

[0003] Due to the high negative pressure in the tunnels and the tightly sealed dampers, the dampers are under great pressure, making them difficult to open manually. Even in underground tunnels with low wind pressure, a single person cannot open the door. While multiple people working together can open the door, this is time-consuming and hinders the normal passage of coal miners. If a malfunction occurs, personnel can be trapped in the tunnel or between two dampers. A damper failure anywhere in the mine can potentially trap personnel. Therefore, pressure relief devices are required on the dampers to ensure the normal passage and safety of coal miners.

[0004] The pressure relief devices on the existing dampers are mostly push-pull type, manually adjustable type, etc., and opening the pressure relief device to release the pressure is also time-consuming and labor-intensive. Therefore, a time-saving and labor-saving mine pressure relief device is needed. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present invention provides a mine pressure relief device to solve the problem of the existing pressure relief device being laborious when manually releasing pressure, as mentioned in the above background art.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a pressure relief device for a mine, comprising: a base flange, a window plate, and a drive structure, wherein the base flange is installed in a damper, the base flange being fixed by a first flange and a second flange, and a certain distance being provided between the first flange and the second flange;

[0009] The second flange has grooves on both the upper and lower inner walls, a boss is provided on one inner side wall of the first flange, and a recess is provided on one inner side wall of the second flange. The surface of the recess is lower than the surface of the second flange, and the boss and the recess are relatively staggered.

[0010] The window panel is provided with guard bars around it, a rotating rod is provided on one surface of the window panel, the driving structure is provided on the window panel on the same surface as the rotating rod, or the driving structure is connected to the rotating rod; the upper and lower side surfaces of the window panel are connected to the two ends of the rotating rod by pins passing through the side walls of the two grooves, and the window panel is located between the offset of the boss and the concave platform; the rotating rod is "concave" in shape, and the concave rod part of the rotating rod is fixedly provided on one surface of the window panel.

[0011] Preferably, the first flange and the second flange are fixed together by fasteners, and the distance between the first flange and the second flange is the thickness of the damper.

[0012] Preferably, the driving structure is a spring, one end of the spring is connected to one end of the rotating rod, and the other end of the spring is connected to one of the grooves.

[0013] Preferably, handles are fixedly provided on both the front and back sides of the window panel by the fastener assembly, and the fastener assembly includes bolts, nuts and washers.

[0014] Preferably, the shapes of the convex platform and the concave platform are both "U"-shaped, and the window plate is a curved steel plate.

[0015] Preferably, the U-shaped edge of the protrusion is located above one side of the window panel, and the other side of the window panel is consistent with the U-shaped edge of the recessed platform.

[0016] Preferably, the boss is fixedly connected to both the upper and lower inner walls of the first flange, and the recess is fixedly connected to both side walls of the grooves.

[0017] Preferably, the material of the baffle is rubber.

[0018] Preferably, the handle is circular in shape.

[0019] Beneficial effects

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The pressure relief device of this utility model is a front-to-back opening and closing type. Compared with the traditional push-pull pressure relief device, it is more time-saving and labor-saving when manually releasing pressure, and the time spent on opening the damper is also shortened. In addition, a retaining strip is installed around the window panel to ensure the sealing of the pressure relief device when it is closed.

[0022] 2. The utility model provides a rotating rod on one side of the window panel. The rotating rod is "concave" shaped. The concave rod part of the rotating rod is fixedly set on the window panel. The upper and lower sides of the window panel are connected to the two ends of the rotating rod through the side walls of the upper and lower grooves by pins. When the damper is small, a spring is used as the driving structure. One end of the rotating rod is connected to one end of the spring, and the other end of the spring is connected to one of the grooves. When the handle is pushed, the window panel is opened by rotating the pin to relieve the pressure. The spring is stretched by the rotating rod. At this time, the damper can be easily opened. When the handle is released, the spring contracts and the window panel is automatically closed to prevent the pressure relief device from being open all the time and hindering the delivery of fresh air. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the front structure of the utility model's pressure relief device, which uses a spring as a driving structure and opens the door from the back;

[0024] Figure 2 This is a schematic diagram of the front structure of the pressure relief device of the utility model, which adopts a spring as the driving structure and opens the door from the front;

[0025] Figure 3 This is a schematic diagram of the structure of the utility model pressure relief device using a spring as the driving structure, with the door opened from the opposite side;

[0026] Figure 4 This is a schematic diagram of the structure of the pressure relief device of the utility model, which adopts a spring as the driving structure and is viewed from the side when the door is opened from the front;

[0027] Figure 5 This is a schematic diagram of the front view of the pressure relief device of the utility model, which uses a spring as the driving structure and the back door is closed;

[0028] Figure 6 This is a schematic diagram of the front view of the pressure relief device of the utility model, which uses a spring as a driving structure when the door is closed;

[0029] Figure 7 This is a schematic diagram of the structure of the utility model's pressure relief device, which uses a spring as a driving structure and is viewed from the side when the door is closed;

[0030] Figure 8 This is a schematic diagram of the structure of the utility model's pressure relief device, which uses a spring as a driving structure and is viewed from the side when the door is closed from the front;

[0031] In the figure: 1, first flange; 2, second flange; 3, boss; 4, handle; 5, stop bar; 6, window panel; 7, spring; 8, rotating rod; 9, recessed platform; 10, pin; 11, groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0033] This utility model provides a technical solution, a pressure relief device for mines, please refer to Figure 1-8 , including a base flange, a window plate 6 and a driving structure, the base flange is installed in the damper 13, the base flange is composed of a first flange 1 and a second flange 2 fixed by fasteners, and there is a certain distance between the first flange 1 and the second flange 2; the distance between the first flange 1 and the second flange 2 is the thickness of the damper 13;

[0034] The driving structure is a spring 7. Grooves 11 are provided on the upper and lower inner walls of the second flange 2, and a spring 7 is provided in the lower groove 11. A boss 3 is provided on the inner side wall of one side of the first flange 1. A recessed platform 9 is provided on the inner side wall of one side of the second flange 2. The surface of the recessed platform 9 is lower than the surface of the second flange 2, and the boss 3 and the recessed platform 9 are relatively staggered. The boss 3 is fixedly connected to the upper and lower inner walls of the first flange 1, and the recessed platform 9 is fixedly connected to the lower side wall of the upper groove 11 and the upper side wall of the lower groove 11.

[0035] See also Figure 7 and Figure 8 , a stop bar 5 is provided around the window panel 6, and a handle 4 is fixed on both sides of the window panel 6 by a combination of fasteners, and the fastener combination includes bolts, nuts and washers; a rotating rod 8 is provided on the back side of the window panel 6, and the upper and lower side surfaces of the window panel 6 are connected to the two ends of the rotating rod 8 by a pin 10 passing through the lower side wall of the groove 11 located above and the upper side wall of the groove 11 located below. The window panel 6 is located between the offset of the boss 3 and the concave platform 9; the U-shaped edge of the boss 3 is located above one side of the window panel 6, and the U-shaped edge of the concave platform 9 coincides with the other side of the window panel 6;

[0036] One end of the rotating rod 8 is connected to one end of the spring 7, and the other end of the spring 7 is connected to the groove 11 located below. The shape of the rotating rod 8 is "concave", and the concave rod part of the rotating rod 8 is fixedly set on one surface of the window panel 6; the material of the baffle 5 is rubber, and the shape of the handle 4 is round; the shape of the boss 3 and the concave platform 9 are both "U"-shaped plates, and the window panel 6 is an arc-shaped steel plate.

[0037] The working process of the pressure relief device of this embodiment is as follows: the base flange is installed in the damper 13, and the base flange is fixed by the first flange 1 and the second flange 2. The upper and lower inner walls of the second flange 2 are both provided with grooves 11, and the spring 7 is provided in the lower groove 11; a boss 3 is provided on the inner side wall of one side of the first flange 1, and the surface of the boss 3 is on the same horizontal plane as the surface of the first flange 1; a recessed platform 9 is provided on the inner side wall of one side of the second flange 2, and the surface of the recessed platform 9 is lower than the surface of the second flange 2. The recessed platform 3 and the boss 9 are opposite and staggered. The boss 3 is fixedly connected to the upper and lower sides of the first flange 1, and the recessed platform 9 is fixedly connected to the lower side wall of the upper groove 11 and the upper side wall of the lower groove 11;

[0038] The upper and lower sides of the window panel 6 are connected to the two ends of the rotating rod 8 through the side walls of the upper and lower grooves 11 through the pin 10. The U-shaped edge of the boss 3 is located above one side of the window panel 6, and the U-shaped edge of the recessed platform 9 coincides with the other side of the window panel 6. Push the handle 4 and the window panel 6 is rotated open by the pin 10. Since the rotating rod 8 is fixed on the reverse side of the window panel 6, and one end of the rotating rod 8 is connected to one end of the spring 7, and the other end of the spring 7 is connected to the groove 11 located below, the spring 7 is stretched to relieve pressure, and the damper 13 can be easily opened. Release the handle 4, the spring 7 contracts, and the window panel 6 is automatically closed to prevent the pressure relief device from being open all the time and hindering the delivery of fresh air.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure relief device for mines, characterized in that: include: A base flange, a window plate (6) and a driving structure, wherein the base flange is installed in the damper (13), the base flange is formed by fixing a first flange (1) and a second flange (2), and a certain distance is provided between the first flange (1) and the second flange (2); A groove (11) is provided on both the upper and lower inner walls of the second flange (2); a boss (3) is provided on one inner side wall of the first flange (1); a recess (9) is provided on one inner side wall of the second flange (2); the surface of the recess (9) is lower than the surface of the second flange (2); the boss (3) and the recess (9) are relatively staggered. The window panel (6) is provided with blocking bars (5) around its periphery, a rotating rod (8) is provided on one surface of the window panel (6), the driving structure is provided on the window panel (6) on the same surface as the rotating rod (8), or the driving structure is connected to the rotating rod (8); the upper and lower side surfaces of the window panel (6) are connected to the two ends of the rotating rod (8) through the side walls of the two grooves (11) via a pin shaft (10), and the window panel (6) is located between the offset of the convex platform (3) and the concave platform (9); the rotating rod (8) is in a "concave" shape, and the concave rod portion of the rotating rod (8) is fixedly provided on one surface of the window panel (6).

2. A mine pressure relief device according to claim 1, characterized in that: The first flange (1) and the second flange (2) are fixed together by fasteners, and the distance between the first flange (1) and the second flange (2) is the thickness of the damper (13).

3. A mine pressure relief device according to claim 2, characterized in that: The driving structure is a spring (7), one end of the spring (7) is connected to one end of the rotating rod (8), and the other end of the spring (7) is connected to one of the grooves (11).

4. A mine pressure relief device according to claim 3, characterized in that: Handles (4) are fixedly provided on both the front and back sides of the window panel (6) via the fastener assembly, wherein the fastener assembly comprises bolts, nuts and washers.

5. A mine pressure relief device according to claim 4, characterized in that: The convex platform (3) and the concave platform (9) are both U-shaped, and the window plate (6) is a curved steel plate.

6. A mine pressure relief device according to claim 5, characterized in that: The U-shaped edge of the convex platform (3) is located above one side of the window panel (6), and the other side of the window panel (6) coincides with the U-shaped edge of the concave platform (9).

7. A mine pressure relief device according to claim 6, characterized in that: The boss (3) is fixedly connected to the upper and lower inner walls of the first flange (1), and the recess (9) is fixedly connected to the side walls of the two grooves (11).

8. A mine pressure relief device according to claim 7, characterized in that: The material of the baffle (5) is rubber.

9. The mine pressure relief equipment according to claim 4, characterized in that: The handle (4) is circular in shape.

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