Electric air brake blade driving mechanism

Abstract

The utility model relates to the technical field of air brakes, in particular to an electric air brake blade driving mechanism which comprises a mounting frame with an airflow channel in the middle, a blade, a driving assembly and a clamping plate, and a fire sensor used for detecting fire is arranged on the mounting frame. The blades are located in the airflow channel and rotationally connected with the mounting frame, gears are arranged on the blades, and racks meshed with the gears are arranged in the mounting frame; the driving assembly drives the connecting rack; the clamping plates are slidably connected with the mounting frame, lifting driving parts for controlling the clamping plates to slide are arranged on the mounting frame, and when the blade is in a closed state, the clamping plates on the two sides move synchronously and abut against the two sides of the blade. Rotation control is carried out on the blades through transmission of the gear and the rack, the consistency of rotation of the blades is improved, linkage is easy to achieve, meanwhile, a clamping plate structure for clamping and supporting the blades in the closed state is additionally arranged, and the blades are prevented from being jacked open under impact of follow-up impact waves.

Description

Technical Field

[0001] The utility model relates to the technical field of wind brakes, in particular to an electric wind brake blade driving mechanism. Background Art

[0002] Air dampers are usually used to control the flow and isolation of airflow, and generally include a frame and blades, and the air flow or isolation is achieved by controlling the opening and closing of the blades. For example, a damper is installed in the air duct, and the damper automatically closes when the fire detector in the air duct detects a fire, preventing the fire from spreading along the air duct. However, the existing dampers have low stability and need to be improved.

[0003] A Chinese patent with authorization announcement number CN217463251U discloses a wind gate. The utility model connects multiple swing rods through a number of connecting parts to achieve the linkage of multiple blades. The connecting parts can drive the swing rods to move and rotate synchronously to make the blades rotate and thus realize the opening or closing of the ventilation duct; its structure is simple and easier to manufacture. While ensuring that the blades can be stably driven to open and close, it greatly reduces production costs and improves corporate benefits.

[0004] However, the device still has some shortcomings: as is known, when a fire occurs, as the fire spreads, shock waves will be generated in the air duct. When the blades are in the closed state, the blades are supported solely by the rocker arm and the support shaft. The support shaft is prone to twisting against each other when the blades are subjected to a large impact, causing the blades to open automatically. Utility Model Content

[0005] The utility model aims to provide an electric wind brake blade driving mechanism in view of the problems existing in the background technology.

[0006] The technical solution of the utility model: an electric damper blade driving mechanism comprises a mounting frame with an air flow channel in the middle, and a fire sensor for detecting fire is arranged on the mounting frame;

[0007] Blades, the blades are located in the air flow channel and are rotatably connected to the mounting frame, each blade is provided with a gear, and a rack meshing with each gear is provided in the mounting frame;

[0008] A driving assembly, wherein the driving assembly drives the connecting rack;

[0009] And a clamping plate is slidably connected to the mounting frame, and a lifting driving member for controlling the sliding of the clamping plate is arranged on the mounting frame. When the blade is in a closed state, the clamping plates on both sides move synchronously and press against both sides of the blade.

[0010] Preferably, a mounting groove is provided in the mounting frame, the gear, the rack and the driving assembly are all located in the mounting groove, and a sealing plate for sealing the opening of the mounting groove is provided on the mounting frame.

[0011] Preferably, the lifting drive member includes a screw rod and a motor, the screw rod is rotatably connected to the mounting frame, the screw rod passes through the clamping plate and is spirally connected thereto, the motor is located in the mounting groove, and the motor drives the screw rod.

[0012] Preferably, the sides of the blades that are close to each other are provided with mutually matching inclined surfaces, and the inner side of the airflow channel of the mounting frame is provided with an edge sealing plate for sealing the inclined surfaces of the blades at the edges on both sides.

[0013] Preferably, a receiving groove is provided on the mounting frame, and the clamping plate is located in the receiving groove when the blade is in an open state.

[0014] Preferably, a bracket is provided on one side of the mounting frame close to the inlet of the airflow channel, and the fire sensor is connected to the bracket.

[0015] Preferably, a rotating shaft is provided on the blade, a rotating disk is provided on the rotating shaft, the rotating disk is rotatably connected to the mounting frame, the gear is integrally connected to the rotating disk, a plurality of latches are provided on the rotating disk, a plurality of pin holes are provided on the blade, and each latch is respectively inserted into a corresponding side pin hole.

[0016] Compared with the prior art, the utility model has the following beneficial technical effects:

[0017] By arranging gears on the blades, arranging racks meshing with each gear in the mounting frame, and using a driving component to drive the racks to slide, the flipping actions of each blade can be made consistent, and the structure is simple and convenient to operate during actual installation; by arranging a clamping plate, and using a lifting drive to control the lifting of the clamping plate, the clamping plate does not move when the blade is in the open state, and the clamping plate rises after the blade is closed to clamp the blade on both sides, thereby improving the impact resistance of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 is a schematic diagram of the connection structure between the blade and the mounting frame;

[0020] Figure 3 It is a schematic diagram of the connection structure between the blade and the clamping plate when the wind gate is in a closed state;

[0021] Figure 4 Schematic diagram of the connection structure between blades and gears.

[0022] Figure numerals: 1, mounting frame; 101, mounting groove; 102, sealing plate; 2, fire sensor; 3, blade; 301, pin hole; 4, rotating shaft; 5, gear; 6, rack; 7, hydraulic cylinder; 8, clamping plate; 9, lifting drive member; 10, turntable; 11, latch; 12, edge sealing plate. DETAILED DESCRIPTION

[0023] Embodiment 1

[0024] like Figure 1-Figure 3 As shown, the utility model provides an electric damper blade driving mechanism, comprising a mounting frame 1 with an airflow channel in the middle, a blade 3, a driving assembly and a clamping plate 8, and a fire sensor 2 for detecting fire is arranged on the mounting frame 1. A bracket is arranged on one side of the mounting frame 1 close to the entrance of the airflow channel, and the fire sensor 2 is connected to the bracket.

[0025] The blades 3 are located in the air flow channel and are rotatably connected to the mounting frame 1. Gears 5 are provided on each blade 3, and racks 6 meshing with each gear 5 are provided in the mounting frame 1. The blades 3 are provided with mutually matching inclined surfaces on the sides close to each other, and edge sealing plates 12 for sealing the blade inclined surfaces at the edges on both sides are provided on the inner side of the air flow channel of the mounting frame 1.

[0026] The drive assembly drives the connected rack 6, and the drive assembly includes but is not limited to the hydraulic cylinder 7. A mounting groove 101 is provided in the mounting frame 1, and the gear 5, the rack 6 and the drive assembly are all located in the mounting groove 101, and a sealing plate 102 for sealing the opening of the mounting groove 101 is provided on the mounting frame 1.

[0027] The mounting frame 1 is provided with a receiving groove, and the clamping plate 8 is located in the receiving groove when the blade 3 is in the open state. The clamping plate 8 is slidably connected to the mounting frame 1, and a lifting drive member 9 for controlling the sliding of the clamping plate 8 is provided on the mounting frame 1. When the blade 3 is in the closed state, the clamping plates 8 on both sides move synchronously and press against both sides of the blade 3. The lifting drive member 9 includes a screw rod and a motor, the screw rod is rotatably connected to the mounting frame 1, the screw rod passes through the clamping plate 8 and is spirally connected thereto, the motor is located in the mounting groove 101, and the motor drives the connecting screw rod.

[0028] In this embodiment, when the fire sensor 2 in the ventilation system detects a fire, the hydraulic cylinder 7 is triggered to operate. The hydraulic cylinder 7 drives the rack 6 to rotate, and the blades 3 are driven to rotate through the meshing of the rack 6 and the gear 5. The blades 3 rotate synchronously and gradually close. The end faces of the blades 3 on both sides are flush in the closed state. At this time, the motors on both sides are started and drive the corresponding side screws to rotate. The rotation of the screws drives the clamping plates 8 to slide up. The clamping plates on both sides that slide up are used to clamp and support the blades 3 in the closed state, thereby improving the impact resistance of the blades 3 and preventing the blades 3 from being pushed open due to the impact of subsequent hot air shock waves.

[0029] Embodiment 2

[0030] like Figure 4As shown, the utility model proposes an electric wind brake blade driving mechanism. Compared with the first embodiment, a rotating shaft 4 is arranged on the blade 3, a turntable 10 is arranged on the rotating shaft 4, the turntable 10 is rotatably connected to the mounting frame 1, the gear 5 is integrally connected to the turntable 10, and a plurality of latches 11 are arranged on the turntable 10, and a plurality of pin holes 301 are arranged on the blade 3, and each latch 11 is respectively inserted into the corresponding side pin hole 301.

[0031] In this embodiment, during the process of blade 3 gradually closing from an open state, blade 3 will be twisted with shaft 4 due to the impact of the hot gas shock wave, and even shaft 4 may be broken. At this time, a turntable 10 and a latch 11 are added, and the latch 11 is used in conjunction with shaft 4 to support the rotation of blade 3, thereby improving the impact resistance of blade 3. The turntable 10 is connected to blade 3 via the latch 11 and shaft 4, which is convenient for disassembly and assembly.

[0032] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An electric damper blade driving mechanism, characterized in that: include A mounting frame (1) having an air flow channel in the middle, and a fire sensor (2) for detecting fire is arranged on the mounting frame (1); The blades (3) are located in the air flow channel and are rotatably connected to the mounting frame (1), each blade (3) is provided with a gear (5), the mounting frame (1) is provided with a rack (6) meshing with each gear (5), a rotating shaft (4) is provided on the blade (3), a rotating disk (10) is provided on the rotating shaft (4), the rotating disk (10) is rotatably connected to the mounting frame (1), the gear (5) and the rotating disk (10) are integrally connected, a plurality of latches (11) are provided on the rotating disk (10), a plurality of pin holes (301) are provided on the blade (3), and each latch (11) is respectively inserted into a corresponding side pin hole (301); A driving assembly, the driving assembly drives the connecting rack (6); and a clamping plate (8), the clamping plate (8) being slidably connected to the mounting frame (1), and a lifting driving member (9) for controlling the sliding of the clamping plate (8) being arranged on the mounting frame (1); when the blade (3) is in a closed state, the clamping plates (8) on both sides move synchronously and press against both sides of the blade (3).

2. The electric damper blade driving mechanism according to claim 1, characterized in that: A mounting groove (101) is provided in the mounting frame (1), the gear (5), the rack (6) and the driving assembly are all located in the mounting groove (101), and a sealing plate (102) for sealing the opening of the mounting groove (101) is provided on the mounting frame (1).

3. The electric damper blade driving mechanism according to claim 2, characterized in that: The lifting drive member (9) comprises a screw rod and a motor. The screw rod is rotatably connected to the mounting frame (1). The screw rod passes through the clamping plate (8) and is spirally connected thereto. The motor is located in the mounting groove (101), and the motor drives the screw rod.

4. The electric damper blade driving mechanism according to claim 1, characterized in that: The blades (3) are provided with mutually matching inclined surfaces on the sides close to each other, and an edge sealing plate (12) for sealing the blade inclined surfaces at the edges on both sides is provided on the inner side of the air flow channel of the mounting frame (1).

5. The electric damper blade driving mechanism according to claim 1, characterized in that: A receiving groove is provided on the mounting frame (1), and the clamping plate (8) is located in the receiving groove when the blade (3) is in an open state.

6. The electric damper blade driving mechanism according to claim 1, characterized in that: A bracket is arranged on one side of the mounting frame (1) close to the inlet of the air flow channel, and the fire sensor (2) is connected to the bracket.

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