Air door pressing device
By designing a push and pressing mechanism on the coal mine damper, using guard plates and elastic components to press the damper tightly when the damper is closed, the problem of the damper being blown away by the wind is solved and the stability and safety of the ventilation system is ensured.
Patent Information
- Application Number
- CN202420983386.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-08
AI Technical Summary
Due to the two-way open and negative pressure, the damper doors of the coal mine are always blown open by the wind, causing the ventilation system to be disordered and unable to effectively isolate the airflow, affecting ventilation safety.
Design a damper compression device, including a push mechanism and a compression mechanism, is connected to the damper through movable means, and uses guard plates, grippers and elastic components to tighten the two dampers when the damper is closed to prevent wind Blow away.
Effectively prevent the damper from being blown open by the wind, maintain the damper closed state, ensure the stability and safety of the ventilation system, and avoid short circuits of the airflow.
Smart Images
Figure CN222276719U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal mine air doors, in particular to an air door pressing device. Background Art
[0002] A coal mine air door refers to an important facility installed in the underground ventilation system of a coal mine to regulate airflow, ensure ventilation safety, and facilitate the passage of personnel and equipment. A coal mine air door can effectively isolate the airflow between different tunnels, prevent direct mixing of incoming and return air, ensure that fresh air reaches the working face according to the designed ventilation path, and at the same time discharge dirty air from the mine to avoid air short-circuiting and maintain good ventilation order.
[0003] However, since the air dampers in coal mines are two-way doors, the negative pressure underground causes one of the doors to always be blown open by the wind, causing the damper to open, thus disrupting the ventilation system. Utility Model Content
[0004] In order to solve the problems in the prior art, the utility model provides a damper pressing device. The pressing device comprises:
[0005] The pushing mechanism and the pressing mechanism are both movably connected to the first damper;
[0006] One end of the pushing mechanism is movably connected to one end of the pressing mechanism;
[0007] When the first damper and the second damper are closed, the second damper drives the pushing mechanism to push the pressing mechanism to rotate and be close to the second damper, so that the first damper and the second damper are pressed against each other through the pushing mechanism and the pressing mechanism.
[0008] Furthermore, the pressing device further comprises:
[0009] a guard plate connected to the first damper;
[0010] The pushing mechanism and the pressing mechanism are both movably connected to the guard plate.
[0011] Further, the guard plate comprises: an upper guard plate and a lower guard plate, and the upper guard plate and the lower guard plate are connected by a connecting plate;
[0012] The pushing mechanism and the pressing mechanism are both movably connected between the upper guard plate and the lower guard plate;
[0013] A fixing plate is connected to the side wall of the lower guard plate, and the guard plate is connected to the first damper through the fixing plate.
[0014] Furthermore, the driving mechanism comprises:
[0015] A front pressing gripper, the front pressing gripper is an L-shaped structure, and is movably connected between the upper guard plate and the lower guard plate;
[0016] The clamping mechanism is movably connected to the upper guard plate and the lower guard plate;
[0017] One end of the front pressing gripper is movably connected to the pressing mechanism, and the other end is used to contact the side wall of the second damper.
[0018] Furthermore, the end of the front pressing gripper away from the pressing mechanism is connected to a first roller, and the first roller is rollingly connected to the side wall of the second damper.
[0019] Furthermore, the clamping mechanism comprises:
[0020] An intermediate connecting plate, movably connected between the upper guard plate and the lower guard plate;
[0021] A rear connecting plate, one end of which is movably connected to the end of the front pressing gripper away from the first roller, and the other end of which is movably connected to the middle connecting plate;
[0022] A rear pressing gripper movably connected to the upper guard plate and the lower guard plate;
[0023] The front connecting plate has two ends which are movably connected to the middle connecting plate and the rear pressing gripper respectively.
[0024] Furthermore, an elastic component is connected between the middle connecting plate and the rear pressing gripper.
[0025] Furthermore, the elastic component comprises:
[0026] Two spring hooks, connected to the middle connecting plate and the rear pressing gripper respectively;
[0027] The spring has two ends respectively connected with the two spring hooks.
[0028] Furthermore, the pressing device further comprises:
[0029] The second roller is rotatably connected to the second air door and is used for contacting the rear pressing gripper.
[0030] The beneficial effect of the technical solution provided by the utility model is as follows: in the utility model, a pushing mechanism and a clamping mechanism are provided, and both the pushing mechanism and the clamping mechanism are movably connected to the first air door, and one end of the pushing mechanism is movably connected to one end of the clamping mechanism. When the two air doors are closed, the second air door will drive the pushing mechanism to push the clamping mechanism to rotate, so that the clamping mechanism is close to the second air door, and the first air door and the second air door are pressed against each other by the pushing mechanism and the clamping mechanism to prevent them from being blown open by the wind. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 It is a structural schematic diagram of a damper pressing device provided by the utility model;
[0032] Figure 2 It is a structural schematic diagram of a damper pressing device provided by the utility model;
[0033] Figure 3 This is a top view of an open damper provided by the utility model;
[0034] Figure 4 This is a structural schematic diagram of an air door opened provided by the utility model;
[0035] Figure 5 This is a top view of a closed damper provided by the utility model;
[0036] Figure 6 This is a structural schematic diagram of a damper closing provided by the utility model;
[0037] Figure 7 It is a structural schematic diagram of a compression device when the damper is closed provided by the utility model;
[0038] Figure 8 It is a structural schematic diagram of a compression device when the damper is closed provided by the utility model;
[0039] Fig. 9 It is a structural schematic diagram of a compression device provided by the utility model when the damper is opened;
[0040] Fig.10 It is a structural schematic diagram of a compression device provided by the utility model when the damper is opened;
[0041] Fig.11 This is a schematic diagram of the connection between a damper and a pressing device provided by the utility model;
[0042] Fig.12 It is a structural schematic diagram of the second roller provided by the utility model.
[0043] Figure markings: 1-upper guard plate; 2-lower guard plate; 3-connecting plate; 4-fixing plate; 5-front clamping gripper; 6-first roller; 7-middle connecting plate; 8-rear connecting plate; 9-rear clamping gripper; 10-front connecting plate; 11-spring hook; 12-spring; 13-door frame; 14-side rod; 15-second air door; 16-first air door; 17-first connecting member; 18-second connecting member; 19-connecting rod; 20-protrusion; 21-second roller; 22-housing. DETAILED DESCRIPTION
[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0045] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.
[0046] It should be noted that in this embodiment, the directions or positional relationships indicated by "bottom", "top", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0047] It should also be noted that, in this embodiment, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0048] First, it should be noted that in order to make the purpose, technical solution and advantages of the utility model clearer, the present embodiment firstly illustrates the structure of a two-way opening damper by way of example. Figure 3-Figure 6 The damper comprises: a door frame 13, the door frame 13 is fixed on the side wall of the mine tunnel, and the second damper 15 and the first damper 16 are hinged on the two side rods 14 of the door frame 13 respectively, and the top of the side wall in the closing direction of the second damper 15 is connected with an L-shaped first connecting member 17, and the top of the side wall in the opening direction of the first damper 16 is connected with a second connecting member 18, and a connecting rod 19 is movably connected between the first connecting member 17 and the second connecting member 18. When the first damper 16 is opened, the second damper 15 will be pushed to open in the other direction through the connecting rod 19, so that the damper can be opened in both directions.
[0049] Since the negative pressure in the well causes one of the air doors to be blown by the wind, causing the air door to open, a air door pressing device is designed in the utility model to press the two air doors together when the two air doors are closed.
[0050] See also Figure 1-Figure 12, a damper clamping device, comprising a guard plate, a pushing mechanism and a clamping mechanism; see Figure 5 , a guard plate can be connected to the top of the first damper 16, a pushing mechanism and a pressing mechanism are both hinged to the guard plate, one end of the pushing mechanism is hinged to one end of the pressing mechanism, and when the pushing mechanism rotates, the pressing mechanism can be pushed to rotate; when the second damper 15 and the first damper 16 are closed, the other end of the pushing mechanism is close to the top side wall of the second damper 15, and at this time, the pushing mechanism will push the other end of the pressing mechanism to be close to the top side wall of the second damper 15, and the pushing mechanism and the pressing mechanism are respectively in contact with the opposite side walls of the second damper 15, and the second damper 15 and the first damper 16 are pressed by the pushing mechanism and the pressing mechanism to prevent them from being blown open by the wind; when the second damper 15 is opened, the pressing mechanism is pushed to fold, and the two dampers are opened.
[0051] Furthermore, the guard plate includes: an upper guard plate 1 and a lower guard plate 2, the upper guard plate 1 and the lower guard plate 2 are connected by a connecting plate 3, a fixing plate 4 is fixedly connected to the side wall of the lower guard plate 2, a notch is opened at the top of the first air door 16, the guard plate is located in the notch, and the fixing plate 4 is fixedly connected to the side wall of the first air door 16.
[0052] The pushing mechanism includes: a front pressing gripper 5, which is an L-shaped structure, and the middle part is hinged between the upper guard plate 1 and the lower guard plate 2. One end of the front pressing gripper 5 is movably connected to the pressing mechanism, and the other end of the front pressing gripper 5 is connected to the first roller 6, and the first roller 6 is rollingly connected to the side wall of the second damper 15 in the closing direction.
[0053] The clamping mechanism includes: two intermediate connecting plates 7, protrusions 20 are arranged on the side walls of the upper guard plate 1 and the lower guard plate 2, the intermediate connecting plates 7 are triangular connecting plates, the first corners of the two intermediate connecting plates 7 are respectively hinged on the protrusions of the upper guard plate 1 and the lower guard plate 2, a rear connecting plate 8 is hinged between the second corners of the two intermediate connecting plates 7, the other end of the rear connecting plate 8 is hinged to the end of the front clamping gripper 5 away from the first roller 6, the third corners of the two intermediate connecting plates 7 are respectively hinged with front connecting plates 10, the rear clamping gripper 9 is also hinged on the protrusions of the upper guard plate 1 and the lower guard plate 2, and the other end of the front connecting plate 10 is hinged to the rear clamping gripper 9.
[0054] The rear clamping gripper 9 includes a bottom plate and side plates fixed on both sides of the bottom plate, the ends of the two side plates are respectively hinged to the protrusions of the upper guard plate 1 and the lower guard plate 2, and the two front connecting plates 10 are respectively hinged to the inner walls of the two side plates.
[0055] An elastic component is connected between the middle connecting plate 7 and the rear clamping gripper 9, and the elastic component includes two spring hooks 11 and a spring 12. A spring hook 11 is connected between the two middle connecting plates 7, a spring hook 11 is connected to the bottom plate of the rear clamping gripper 9, and a spring 12 is connected between the two spring hooks 11.
[0056] Furthermore, the clamping device further includes: a second roller 21, a notch is provided at the top of the second damper 15, a rectangular housing 22 is fixed in the notch, and the second roller 21 is rotatably connected at one corner of the housing 22 for contacting the rear clamping gripper 9. The second roller 21 is located on the side wall of the second damper 15 in the opening direction, and is located at the corner of the second damper 15 close to the first damper 16.
[0057] See also Figure 7 and Figure 8 When the second damper 15 and the first damper 16 are about to be closed, the first roller 6 of the front pressing gripper 5 first contacts the side wall in the closing direction of the second damper 15, and continues to close the second damper 15 and the first damper 16. The first roller 6 rolls along the side wall of the second damper 15 and pushes the front pressing gripper 5 to rotate. When the front pressing gripper 5 rotates, it pushes the rear connecting plate 8, the rear connecting plate 8 pushes the middle connecting plate 7, the middle connecting plate 7 pushes the front connecting plate 10, and the front connecting plate 10 pushes the bottom plate of the rear pressing gripper 9 to be close to the side wall in the opening direction of the second damper 15. The spring 12 is in an extended state, and the side wall of the second damper 15 is located between the rear pressing gripper 9 and the first roller 6. When the second damper 15 and the first damper 16 are completely closed, the second damper 15 and the first damper 16 are tightened and fixed by the rear pressing gripper 9 and the front pressing gripper 5, so that the second damper 15 and the first damper 16 will not be blown open by the wind.
[0058] See also Fig. 9 and Fig.10 When it is necessary to open the second damper 15 and the first damper 16, the second damper 15 is pushed, and the second damper 15 pushes the rear pressing gripper 9, the spring 12 unloads the force, the spring 12 contracts, and the rear pressing gripper 9 is pulled to fold. At this time, the rear pressing gripper 9 will push the front connecting plate 10, the middle connecting plate 7 and the rear connecting plate 8, and the front pressing gripper 5 is pushed to rotate through the rear connecting plate 8, so that the end of the front pressing gripper 5 connected to the first roller 6 rotates a certain distance in the direction of opening the second damper 15. At this time, the rear pressing gripper 9 and the front pressing gripper 5 no longer tighten and fix the second damper 15 and the first damper 16, and continue to push the second damper 15. The second roller 21 on the second damper 15 rolls along the rear pressing gripper 9, and the second damper 15 and the first damper 16 are opened.
[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A damper pressing device, characterized in that: The pressing device comprises: Pushing mechanism, pressing mechanism and guard plate; The guard plate is connected to the first damper, and comprises: an upper guard plate (1) and a lower guard plate (2), wherein the upper guard plate (1) and the lower guard plate (2) are connected via a connecting plate (3); The driving mechanism comprises: A front pressing gripper (5), the front pressing gripper (5) being an L-shaped structure and movably connected between the upper guard plate (1) and the lower guard plate (2); The end of the front pressing gripper (5) is connected to a first roller (6), and the first roller (6) is rollingly connected to the side wall of the second damper; The clamping mechanism comprises: An intermediate connecting plate (7) movably connected between the upper guard plate (1) and the lower guard plate (2); a rear connecting plate (8), one end of which is movably connected to the end of the front pressing gripper (5) away from the first roller (6), and the other end of which is movably connected to the middle connecting plate (7); A rear pressing gripper (9) movably connected to the upper guard plate (1) and the lower guard plate (2); A front connecting plate (10), both ends of which are movably connected to the middle connecting plate (7) and the rear pressing gripper (9); When the first damper and the second damper are closed, the second damper drives the pushing mechanism to push the pressing mechanism to rotate and be close to the second damper, so that the first damper and the second damper are pressed against each other through the pushing mechanism and the pressing mechanism.
2. The damper pressing device according to claim 1, characterized in that: A fixing plate (4) is connected to the side wall of the lower guard plate (2), and the guard plate is connected to the first damper via the fixing plate (4).
3. The damper pressing device according to claim 1, characterized in that: An elastic component is connected between the middle connecting plate (7) and the rear pressing gripper (9).
4. The damper pressing device according to claim 3, characterized in that: The elastic component comprises: Two spring hooks (11) are respectively connected to the middle connecting plate (7) and the rear pressing gripper (9); The two ends of the spring (12) are respectively connected to the two spring hooks (11).
5. The damper pressing device according to claim 1, characterized in that: The pressing device also includes: The second roller (21) is rotatably connected to the second damper and is used for contacting the rear pressing gripper (9).