Automatic opening and closing type air door

Abstract

The utility model belongs to the technical field of automatic opening and closing door structures, and particularly relates to an automatic opening and closing type air door which comprises a door plate, a door shaft, a door frame and an opening and closing mechanism. The opening and closing mechanism is located at the end, away from the door shaft, of the door plate. The opening and closing mechanism comprises a linear driver, a mounting plate and a mounting seat; the mounting plate is fixedly connected with the door frame, and the mounting seat is fixedly connected with the door plate; the linear driver body part is fixedly connected with the mounting seat; the free end of a driving rod of the linear driver is connected with the mounting plate in a hinged mode. The piston rod of the air cylinder serves as a hard supporting rod and can push the air door to be opened and closed, the opening and closing mechanism is located at the end, away from the door shaft, of the door plate, and therefore the piston rod can obtain the maximum force arm after coming out, and the power of a driving mechanism can be greatly reduced. The inverted-U-shaped design of the mounting base facilitates mounting.

Description

Technical Field

[0001] This utility model belongs to the technical field of automatic door opening and closing structure, and particularly relates to an automatic opening and closing damp door. Background Technology

[0002] Air doors are crucial structures in mine ventilation systems. They isolate airflow, creating conditions for the on-demand distribution of mine airflow and ensuring the safety of underground personnel. However, mine air doors are relatively heavy and require automatic opening and closing mechanisms to operate.

[0003] Currently, the main way to open dampers is by linkage, or by hinged cylinders on the side of the door and the other end to the door frame to open and close the door. Because the actual working lever arm is short and the energy utilization rate is low, a high-power drive mechanism is required. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an automatic opening and closing damper. The technical solution adopted by this utility model is as follows:

[0005] An automatic opening and closing damper includes a door panel, a door hinge, and a door frame. The door panel is hinged to the door frame via the door hinge. The damper also includes an opening and closing mechanism located at the end of the door panel away from the door hinge. The opening and closing mechanism includes a linear actuator, a mounting plate, and a mounting base. The linear actuator includes a body and a drive rod that moves linearly relative to the body. The mounting plate is fixedly connected to the door frame, and the mounting base is fixedly connected to the door panel. The body portion of the linear actuator is fixedly connected to the mounting base. The free end of the drive rod of the linear actuator is hinged to the mounting plate.

[0006] The technical effects achieved by employing the aforementioned technical features are as follows:

[0007] The opening and closing mechanism of the damper of this utility model uses the piston rod of the cylinder as a rigid support rod, which can push the damper to open and close. Since the opening and closing mechanism is located at the end of the door panel away from the door hinge, the piston rod can obtain the maximum lever arm after it comes out, which can significantly reduce the power of the drive mechanism.

[0008] Furthermore, the linear actuator body is hinged to the mounting base, and the fixed plate is provided with at least one ear plate; the mounting base is provided with at least one ear plate; the ear plate is provided with a hinge hole, and the ear plate is provided with a hinge hole; the hinge hole is connected to the hinge hole via a hinge shaft.

[0009] Furthermore, the mounting base is inverted U-shaped, and the width of the opening of the mounting base is adapted to the thickness of the door panel.

[0010] The above-mentioned further technical features have the following technical effects:

[0011] The inverted U-shaped design of the mounting base described in this utility model facilitates the installation of the damper's opening and closing mechanism.

[0012] Furthermore, the mounting base and / or the mounting plate are provided with multiple through holes.

[0013] The above-mentioned further technical features have the following technical effects:

[0014] The multiple through holes on the mounting base and / or mounting plate of this utility model allow for further fixing of the damper's opening and closing mechanism with screws, making the damper's opening and closing mechanism more robust.

[0015] Furthermore, the linear actuator is one of a cylinder, a hydraulic cylinder, a linear motor, or a lead screw nut.

[0016] Furthermore, the fixing plate is provided with two ear plates.

[0017] Furthermore, the mounting base is provided with two ear plates.

[0018] Furthermore, a reinforcing rib is provided between the fixing plate and the first ear plate; a reinforcing rib is provided between the mounting base and the second ear plate.

[0019] This utility model provides an automatic opening and closing damper. The opening and closing mechanism of the damper uses the piston rod of the cylinder as a rigid support rod, which can push the damper to open and close. Since the opening and closing mechanism is located at the end of the door panel away from the door hinge, the piston rod can obtain the maximum lever arm after it comes out, which can significantly reduce the power of the drive mechanism. The inverted U-shaped design of the mounting base also facilitates the installation of the opening and closing mechanism of the damper. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the automatic opening and closing damper of this utility model;

[0021] Figure 2 This is a schematic diagram of the opening and closing mechanism of this utility model.

[0022] Explanation of markings in the diagram:

[0023] 1. Door panel; 2. Door frame; 3. Door hinge; 4. Cylinder; 5. Mounting plate; 6. Mounting base; 7. Ear plate one; 8. Ear plate two; 9. Hinge shaft; 10. Reinforcing rib; 11. Fixing plate. Detailed Implementation

[0024] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.

[0025] Example 1:

[0026] like Figure 1 and Figure 2 As shown, an automatic opening and closing damper includes a door panel 1, a door hinge 3, and a door frame 2. The door panel 1 is hinged to the door frame 2 via the door hinge 3. It also includes an opening and closing mechanism located at the end of the door panel 1 furthest from the door hinge 3. The opening and closing mechanism includes a driving cylinder 4, a mounting plate 5, and a mounting base 6. The mounting plate 5 is fixedly connected to the door frame 2. The mounting base 6 is inverted U-shaped, and the width of its opening is adapted to the thickness of the door panel 1. The mounting base 6 is fixedly connected to the door panel 1. Multiple through holes are provided on the mounting base 6 and the mounting plate 5, and screws are used to fix the opening and closing mechanism of the damper. A reinforcing rib 10 is provided between the fixing plate 11 and the first ear plate 7; a reinforcing rib 10 is also provided between the mounting base 6 and the second ear plate 8. The cylinder 4 has a fixed plate 11 at the front end of its cylinder barrel, and the fixed plate 11 has two lugs 7; the mounting base 6 has two lugs 8; the lug 7 has a hinge hole 1, and the lug 8 has a hinge hole 2, and the hinge hole 1 and the hinge hole 2 are connected by a hinge shaft 9; the free end of the piston rod of the cylinder 4 is hinged to the mounting plate 5.

[0027] This utility model provides an automatic opening and closing damper. The opening and closing mechanism of the damper uses the piston rod of the cylinder 4 as a rigid support rod, which can push the damper to open and close. Since the opening and closing mechanism is located at the end of the door plate 1 away from the door hinge 3, the maximum lever arm can be obtained, which can significantly reduce the power of the drive mechanism. The inverted U-shaped design of the mounting base 6 also facilitates the installation of the opening and closing mechanism of the damper.

[0028] Example 2:

[0029] Unlike Example 1, in this example, a hydraulic cylinder is used instead of the pneumatic cylinder 4 in Example 1 as the driving component.

[0030] Example 3:

[0031] Unlike Example 1, in this example, a linear motor is used instead of cylinder 4 in Example 1 as the driving component.

[0032] Example 4:

[0033] Unlike Example 1, in this example, a lead screw nut is used instead of the cylinder 4 in Example 1 as the driving component. A nut is fixed on the fixing plate 11, and a motor is hinged on the mounting plate 5. The output shaft of the motor is fixedly connected to the lead screw, and the lead screw is threadedly connected to the nut.

[0034] Example 5:

[0035] Unlike Examples 1-4, in this example, the driving component is fixed to the door panel 1, rather than hinged to the door panel 1.

[0036] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An automatic opening and closing damper comprising a door plate, a door shaft, and a door frame, the door plate being hinged to the door frame by the door shaft, characterized in that, Further comprising an opening and closing mechanism; the opening and closing mechanism is located at the end of the door panel away from the door shaft; the opening and closing mechanism comprises a linear actuator, a mounting plate and a mounting seat; the linear actuator comprises a body and a driving rod moving linearly relative to the body, the mounting plate is fixedly connected with the door frame, and the mounting seat is fixedly connected with the door panel; the linear actuator body part is fixedly connected with the mounting seat; the free end of the driving rod of the linear actuator is hingedly connected with the mounting plate.

2. The automatic damper according to claim 1, wherein The linear actuator body part is hingedly connected with the mounting seat, the linear actuator body part is provided with a fixing plate, at least one ear plate one is arranged on the fixing plate, at least one ear plate two is arranged on the mounting seat, the ear plate one is provided with a hinge hole one, the ear plate two is provided with a hinge hole two, and the hinge hole one and the hinge hole two are connected through a hinge shaft.

3. The automatic damper according to claim 1 or 2, characterized in that The mounting seat is in inverted U shape, and the opening width of the mounting seat is matched with the thickness of the door panel.

4. The automatic damper according to claim 1 or 2, characterized in that The linear actuator is one of a gas cylinder, an oil cylinder, a linear motor and a lead screw nut.

5. The automatic damper according to claim 2, wherein Two ear plates one are arranged on the fixing plate.

6. The automatic damper according to claim 2 or 5, wherein Two ear plates two are arranged on the mounting seat.

7. The automatic damper according to claim 2, wherein Reinforcing ribs are arranged between the fixing plate and the ear plate one, and reinforcing ribs are arranged between the mounting seat and the ear plate two.

Images