Air door mechanism

Abstract

The utility model relates to the technical field of coal mine safety, and discloses an air door mechanism which comprises a mounting shell and a connecting shell fixed to one side of an inner cavity of the mounting shell, and further comprises a plugging assembly arranged in an inner cavity of the connecting shell, a containing groove is formed in the top of the inner cavity of the connecting shell, and fixing grooves are formed in the two sides of the connecting shell; through the cooperation of the electric telescopic rod and the plugging assembly, the air outlet amount of the mechanism can be conveniently controlled, the occupied space of the mechanism can be reduced under the action of the plugging assembly, and therefore the applicability of the mechanism is improved, meanwhile, under the cooperation of the cleaning brush, the protective net can be cleaned when the electric telescopic rod moves, and the cleaning efficiency is improved. And the cleaning effect on the protective net can be improved under the cooperation of a positioning rod and a compression spring, and the problems that when an existing mechanism is used, the applicability is poor, and the foreign matter cannot be cleaned are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine safety, in particular to a damper mechanism. Background Art

[0002] The damper, also known as the choke, is used to adjust the amount of air entering. The ventilation dampers for coal mines are mostly installed in the shape of a plate frame at the air outlet. During the use of the existing damper mechanism for safe ventilation in coal mines, due to the large air outlet, large pieces of sand and gravel are prone to hit the damper, thereby damaging the damper and posing a safety hazard. The existing dampers are mostly fixed air outlets that can only control the flow of wind but cannot control the amount of air, and need to be opened and closed manually, posing a certain safety threat.

[0003] After searching, it is found that a damper mechanism for safe ventilation of coal mines is disclosed in Chinese patent documents [Application No.: CN202223234554.7]. This damper mechanism for safe ventilation of coal mines includes a damper body, a groove No. 1 is opened in the middle of the front end of the damper body, a connecting device is fixedly connected to the middle of the front end of the damper body, an adjusting device is fixedly connected to the lower end of the connecting device, and an intercepting device is fixedly connected to the front end of the damper body; the connecting device includes a frame plate, a side plate is fixedly connected to the upper right end of the frame plate, a movable groove is opened in the middle of the upper end of the frame plate, a sliding groove is opened between the middle of the left plate wall and the middle of the right plate wall of the frame plate, a groove No. 2 is opened in the front end of the frame plate, and the frame plate is fixedly connected to the middle of the front end of the damper body.

[0004] The mechanism disclosed in the patent can control the flow of wind when in use, but the position of the wind plate needs to be adjusted during control. However, the wind plate needs a space to be stored after it is moved, and the wind plate is large in size, which results in the mechanism itself being large in size when in use. It is not only inconvenient to install, but also the space in the mine is limited, which reduces the applicability of the mechanism when in use.

[0005] At the same time, the interception net can intercept foreign objects to prevent them from damaging the wind plate. However, after long-term use, the surface of the interception net will be contaminated with some dust and foreign objects, which will cause the foreign objects and dust to gradually block the interception net, affecting the air output of the mechanism, resulting in a decrease in the air output of the mechanism and affecting the normal use of the mechanism. Utility Model Content

[0006] The purpose of the utility model is to provide a damper mechanism to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a damper mechanism, comprising a mounting shell and a connecting shell fixed to one side of the inner cavity thereof, and further comprising:

[0008] A blocking component is arranged in the inner cavity of the connecting shell, a receiving groove is provided at the top of the inner cavity of the connecting shell, fixing grooves are provided on both sides of the connecting shell, an electric telescopic rod is installed in the inner cavity of the fixing groove, and a pushing block is fixedly connected to the output shaft of the electric telescopic rod;

[0009] A protective net is fixed to the other side of the inner cavity of the mounting shell, one side of the pushing block is fixedly connected to a connecting frame, one side of the connecting frame is fixedly connected to a connecting plate, one side of the connecting plate is provided with a positioning rod, one side of the positioning rod is fixedly connected to a compression spring, and the other end of the positioning rod is fixedly connected to a cleaning brush.

[0010] Preferably, the blocking assembly includes a blocking plate and a connecting groove opened on one side thereof, and positioning blocks are fixedly connected at two locations on one side of the inner cavity of the receiving groove.

[0011] Preferably, the cross-sectional shapes of the connecting groove and the positioning block are both T-shaped structures, and the surface of the blocking plate is slidably connected to the inner wall of the receiving groove.

[0012] Preferably, guide blocks are fixedly connected to both sides of the blocking plate, and guide grooves are provided on both sides of the inner cavity of the connecting shell, and the guide grooves are slidably connected to the guide blocks.

[0013] Preferably, the connecting frame is designed as an L-shaped structure, the surface of the connecting frame is slidably connected to the inner wall of the mounting shell, and the surface of the connecting frame is slidably connected to the surface of the connecting shell.

[0014] Preferably, the surface of the cleaning brush is slidably connected to the surface of the protective net, and the cleaning brush is made of nylon.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model can conveniently control the air outlet of the mechanism through the cooperation of the electric telescopic rod and the blocking component, and can reduce the space occupied by the blocking component under the action of the blocking component, thereby reducing the volume of the mechanism, thereby improving the applicability of the mechanism, and at the same time, with the cooperation of the cleaning brush, the protective net can be cleaned when the electric telescopic rod moves, thereby reducing dust and foreign matter on the surface of the protective net, and with the cooperation of the positioning rod and the compression spring, the cleaning effect of the protective net can be improved, and the situation where dust blocks the protective net and affects the air outlet is reduced, thereby solving the problem that the existing mechanism has poor applicability and cannot clean foreign matter when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of a partial three-dimensional cross-sectional structure in the utility model;

[0019] Figure 3 It is a schematic diagram of a partial three-dimensional cross-sectional structure in the utility model;

[0020] Figure 4 It is a schematic diagram of a partial three-dimensional structure from another viewing angle of the utility model;

[0021] Figure 5 It is a schematic diagram of a partial three-dimensional structure in the utility model;

[0022] Figure 6 For this utility model Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0023] In the figure: 1. Installation shell; 2. Connecting shell; 3. Sealing assembly; 31. Sealing plate; 32. Connecting groove; 33. Positioning block; 4. Storage groove; 5. Fixing groove; 6. Electric telescopic rod; 7. Pushing block; 8. Protective net; 9. Connecting frame; 10. Connecting plate; 11. Positioning rod; 12. Compression spring; 13. Cleaning brush; 14. Guide groove; 15. Guide block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-6As shown, a damper mechanism comprises a mounting shell 1, one side of the inner cavity of the mounting shell 1 is fixedly connected to a connecting shell 2, the inner cavity of the connecting shell 2 is provided with a blocking component 3, the blocking component 3 can block the opening of the connecting shell 2, so as to control the exhaust volume of the structure, and a receiving groove 4 is provided on the top of the inner cavity of the connecting shell 2, the receiving groove 4 can receive the blocking component 3, so that when the mechanism needs the maximum amount of exhaust, the blocking component 3 can be completely moved to the inside of the receiving groove 4, and under the action of the blocking component 3 itself, the occupied plane space can be reduced, thereby reducing the space occupied when installing the mechanism, and facilitating the installation of the mechanism. The structure is installed, and fixing grooves 5 are provided on both sides of the connecting shell 2. The inner cavity of the fixing groove 5 is installed with an electric telescopic rod 6. The output shaft of the electric telescopic rod 6 is fixedly connected with a pushing block 7. The surface of the pushing block 7 is slidably connected to the inner wall of the fixing groove 5. The electric telescopic rod 6 can provide power for the blocking component 3 when it needs to be moved, so as to facilitate the adjustment of the position of the blocking component 3, so as to control the air outlet of the mechanism. A protective net 8 is fixedly connected to the other side of the inner cavity of the installation shell 1. The protective net 8 can block foreign objects and prevent stones from damaging the blocking component 3, so as to improve the service life of the mechanism. One side of the pushing block 7 The side is fixedly connected with a connecting frame 9, and the connecting frame 9 is designed in an L-shaped structure. The surface of the connecting frame 9 is slidably connected to the inner wall of the mounting shell 1, and the surface of the connecting frame 9 is slidably connected to the surface of the connecting shell 2. Under this action, the mounting shell 1 and the connecting shell 2 can limit the connecting frame 9 when the connecting frame 9 moves, so that it can be more stable when moving, and avoid the connecting frame 9 being unstable when moving and affecting the subsequent cleaning of the protective net 8. One side of the connecting frame 9 is fixedly connected with a connecting plate 10, and a positioning rod 11 is provided on one side of the connecting plate 10. The positioning rod 11 is designed in a T-shaped structure, and one end of the positioning rod 11 passes through the other end of the connecting plate 10. One side is slidably connected to the inner wall of the penetration point, one side of the positioning rod 11 is fixedly connected with a compression spring 12, one end of the compression spring 12 is fixedly connected to the surface of the connecting plate 10, and the other end of the positioning rod 11 is fixedly connected with a cleaning brush 13, the surface of the cleaning brush 13 is slidably connected to the surface of the protective net 8, the cleaning brush 13 is made of nylon, and the wear resistance of the cleaning brush 13 can be improved under this action, thereby improving the service life of the cleaning brush 13, and under this action, the compression spring 12 can apply pressure to the positioning rod 11, so that the cleaning brush 13 can fit more closely with the surface of the protective net 8, thereby increasing the cleaning effect of the protective net 8.

[0026] The blocking assembly 3 includes three blocking plates 31, and a connecting groove 32 is opened on one side of the blocking plate 31. The inner wall of the connecting groove 32 is slidably connected to the surface of the blocking plate 31. Under this action, when the connection shell 2 is blocked, the three blocking plates 31 can be unfolded to each other, so as to control the air outlet. When the air outlet needs to be controlled, the three blocking plates 31 can be folded to each other, which can not only reduce the occupied space, but also facilitate the control of the air outlet. Positioning blocks 33 are fixedly connected at two places on one side of the inner cavity of the storage slot 4. The surface of the positioning block 33 is slidably connected to the inner wall of the connecting groove 32. Under this action, when the entire blocking assembly 3 is moved to the inside of the storage slot 4, the positioning block 33 can guide the blocking plate 31 through the connecting groove 32, so that the blocking plate 31 is more stable when moving, and the connection The cross-sectional shapes of the connecting groove 32 and the positioning block 33 are both T-shaped structural designs. The surface of the blocking plate 31 is slidably connected to the inner wall of the receiving groove 4. Under this action, the positioning block 33 can hook the blocking plate 31 through the connecting groove 32, so that the positioning block 33 will not easily slide out from the inner wall of the connecting groove 32, effectively improving the stability of the blocking plate 31 during movement. Guide blocks 15 are fixedly connected to both sides of the blocking plate 31, and guide grooves 14 are provided on both sides of the inner cavity of the connecting shell 2. The guide grooves 14 are slidably connected to the guide blocks 15. Under this action, the blocking plate 31 can be guided when it moves, making the blocking plate 31 more stable when moving. One side of the pushing block 7 is fixedly connected to the surface of the guide block 15 below. Under this action, the electric telescopic rod 6 can drive other blocking plates 31 to move through the blocking plate 31 below.

[0027] Working principle: First, when it is necessary to control the air output of the mechanism, turn on the electric telescopic rod 6. Under the action of the electric telescopic rod 6, the guide block 15 will be driven to move through the pushing block 7. Under the action of the guide block 15, the blocking plate 31 below will move upward. Under the cooperation of the blocking plate 31 and the connecting groove 32, the blocking plates 31 will move together with each other, thereby reducing the space occupied by the blocking plate 31. Then, with the cooperation of the positioning block 33, the blocking plate 31 will move to the inside of the storage groove 4 for storage, so that the mechanism can discharge air to the maximum extent. When the electric telescopic rod 6 moves, the connecting plate 10 will be driven to move through the connecting frame 9, so that the cleaning brush 13 can slide on the surface of the protective net 8, and with the cooperation of the positioning rod 11 and the compression spring 12, pressure can be applied to the cleaning brush 13, thereby increasing the cleaning effect of the protective net 8.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A damper mechanism, comprising a mounting shell (1) and a connecting shell (2) fixed to one side of the inner cavity thereof, characterized in that: Also includes: A blocking component (3) is arranged in the inner cavity of the connecting shell (2), a receiving groove (4) is provided at the top of the inner cavity of the connecting shell (2), fixing grooves (5) are provided on both sides of the connecting shell (2), an electric telescopic rod (6) is installed in the inner cavity of the fixing groove (5), and a pushing block (7) is fixedly connected to the output shaft of the electric telescopic rod (6); A protective net (8) is fixed to the other side of the inner cavity of the mounting shell (1); one side of the pushing block (7) is fixedly connected to a connecting frame (9); one side of the connecting frame (9) is fixedly connected to a connecting plate (10); one side of the connecting plate (10) is provided with a positioning rod (11); one side of the positioning rod (11) is fixedly connected to a compression spring (12); and the other end of the positioning rod (11) is fixedly connected to a cleaning brush (13).

2. A damper mechanism according to claim 1, characterized in that: The blocking assembly (3) comprises a blocking plate (31) and a connecting groove (32) provided on one side thereof, and positioning blocks (33) are fixedly connected at two locations on one side of the inner cavity of the receiving groove (4).

3. A damper mechanism according to claim 2, characterized in that: The cross-sectional shapes of the connecting groove (32) and the positioning block (33) are both T-shaped structures, and the surface of the blocking plate (31) is slidably connected to the inner wall of the receiving groove (4).

4. A damper mechanism according to claim 2, characterized in that: Guide blocks (15) are fixedly connected to both sides of the blocking plate (31), and guide grooves (14) are provided on both sides of the inner cavity of the connecting shell (2), and the guide grooves (14) are slidably connected to the guide blocks (15).

5. The damper mechanism according to claim 1, characterized in that: The connecting frame (9) is designed as an L-shaped structure, the surface of the connecting frame (9) is slidably connected to the inner wall of the mounting shell (1), and the surface of the connecting frame (9) is slidably connected to the surface of the connecting shell (2).

6. A damper mechanism according to claim 1, characterized in that: The surface of the cleaning brush (13) is slidably connected to the surface of the protective net (8), and the cleaning brush (13) is made of nylon.

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