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CN-224230224-U - Closing mechanism for air inlet and outlet vent

CN224230224UCN 224230224 UCN224230224 UCN 224230224UCN-224230224-U

Abstract

The utility model discloses a closing mechanism for an air inlet and exhaust vent, which comprises a bottom plate group, a self-locking air cylinder and a pair of door groups, wherein the bottom plate group comprises a mounting plate, two pairs of limiting seats and a pair of openings are arranged on the mounting plate, a pair of conical gear shafts are rotatably arranged on the limiting seats, a pair of gear shaft groups are arranged on the limiting seats, a pair of door groups are respectively arranged on the pair of gear shaft groups, the door groups comprise a valve plate and a supporting arm, one side of the mounting plate is provided with a pneumatic assembly and a double-linkage self-locking mechanism.

Inventors

  • Li zhonghang
  • SUN ZIFENG
  • Zou Guangze
  • WANG SIQI
  • ZHOU TIANLI
  • DENG YAN
  • BU YIZHAO

Assignees

  • 鞍山电磁阀有限责任公司

Dates

Publication Date
20260512
Application Date
20250508

Claims (7)

  1. 1. The closing mechanism for the air inlet and outlet vent comprises a bottom plate group (1), a self-locking cylinder (6) and a pair of door groups (4), and is characterized in that the bottom plate group (1) comprises a mounting plate (1-1), two pairs of limiting seats (1-3) and a pair of openings are arranged on the mounting plate (1-1), and a pair of bevel gear shafts (1-4) are rotatably arranged on the mounting plate; A pair of gear shaft groups (3) are arranged on the two pairs of limiting seats (1-3), a pair of door groups (4) are respectively arranged on the pair of gear shaft groups (3), and the door groups (4) comprise valve plates (4-1) and supporting arms (4-2); One side of the mounting plate (1-1) is provided with a pneumatic assembly (2) and a double-linkage self-locking mechanism (5), and the self-locking cylinder (6) is arranged on the mounting plate (1-1).
  2. 2. The closing mechanism for an air intake and exhaust vent according to claim 1, wherein the gear shaft group (3) comprises a shaft bracket (3-1) mounted on a limiting seat (1-3), a transmission shaft (3-2) is rotatably mounted on the shaft bracket (3-1), a pair of swinging rods (3-3) are mounted on the transmission shaft (3-2) and one end of the swinging rods is connected with a tenon type coupling (3-4), a bearing base is arranged on the mounting plate (1-1), a bevel gear transmission shaft (3-5) is rotatably mounted on the bearing base, a tapered tooth surface of the bevel gear transmission shaft (3-5) is meshed with a tapered tooth surface of the bevel gear shaft (1-4), one end of the bevel gear transmission shaft (3-5) is connected with the tenon type coupling (3-4), and the supporting arm (4-2) is fixedly mounted on the valve plate (4-1) and the supporting arm (4-2) is connected with the swinging rods (3-3).
  3. 3. The closing mechanism for an air intake and exhaust vent according to claim 1, wherein the air-operated assembly (2) comprises a cylinder block (2-5) mounted on a mounting plate (1-1), a cylinder piston (2-7), an explosion-proof wiring adapter box (2-1), a pair of shield mounting plates (2-2), a manual gear shaft (2-3), an explosion-proof signal sensor (2-4), a cylinder end cover (2-6) and a gear shaft (2-8) are arranged on the cylinder block (2-5), and a safety shield (7) is mounted on the pair of shield mounting plates (2-2).
  4. 4. A closing mechanism for an air intake and exhaust vent according to claim 3, wherein the double-linkage self-locking mechanism (5) comprises a driving crank (5-3) arranged on a gear shaft (2-8), two ends of the driving crank (5-3) are hinged with a pair of connecting rods (5-2), a pair of connecting rods (5-2) are respectively connected with a driven rocker (5-1) and a self-locking driven rocker (5-5), a hinge pin (5-4) is inserted between the driving crank (5-3) and the connecting rods (5-2), and the driven rocker (5-1) and the self-locking driven rocker (5-5) are respectively sleeved on one ends of a pair of conical gear shafts (1-4).
  5. 5. A closure mechanism for an intake and exhaust vent according to claim 1, wherein a pair of said openings are provided with respective valve seat seals (1-2), and a pair of said valve plates (4-1) are respectively located within a pair of valve seat seals (1-2).
  6. 6. Closing mechanism for intake and exhaust vents according to claim 1, characterized in that the output of the self-locking cylinder (6) and the input of the cylinder block (2-5).
  7. 7. Closing mechanism for an air intake and exhaust vent according to claim 1, characterized in that a protective rail (8) is mounted on the mounting plate (1-1).

Description

Closing mechanism for air inlet and outlet vent Technical Field The utility model relates to the technical field of ventilation systems, in particular to a closing mechanism for an air inlet and outlet vent. Background The ventilation device is mainly used for rapidly cutting off and rapidly switching on the air inlet and outlet ventilation openings through rapid opening and closing, and ventilation pipelines in the existing ventilation system are usually open and easy to enter sundries, so that the structure inside the ventilation system is affected. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a closing mechanism for an air inlet and outlet vent, which solves the problem that the existing open type ventilating pipeline is easy to enter sundries. The utility model is realized by the following technical scheme that the closing mechanism for the air inlet and outlet vent comprises a bottom plate group, a self-locking cylinder and a pair of door groups, wherein the bottom plate group comprises a mounting plate, and two pairs of limiting seats and a pair of openings are arranged on the mounting plate and are rotatably provided with a pair of bevel gear shafts; A pair of gear shaft groups are arranged on the two pairs of limiting seats, a pair of door groups are respectively positioned on the pair of gear shaft groups, and each door group comprises a valve plate and a supporting arm; One side of the mounting plate is provided with a pneumatic assembly and a double-linkage self-locking mechanism, and the self-locking cylinder is arranged on the mounting plate. Preferably, the gear shaft group comprises a shaft support arranged on the limiting seat, the shaft support is rotationally provided with a transmission shaft, a pair of swing rods are arranged on the transmission shaft, one end of the swing rods is connected with a tenon type coupler, a bearing base is arranged on the mounting plate, a bevel gear transmission shaft is rotationally arranged on the bearing base, a conical tooth surface of the bevel gear transmission shaft is meshed with a conical tooth surface of the bevel gear shaft, one end of the bevel gear transmission shaft is connected with the tenon type coupler, and the support arm is fixedly arranged on the valve plate and is connected with the swing rods. Preferably, the pneumatic assembly comprises a cylinder body arranged on the mounting plate, wherein a cylinder piston, an explosion-proof junction adapter box, a pair of protective cover mounting plates, a manual gear shaft, an explosion-proof signal sensor, a cylinder end cover and a gear shaft are arranged on the cylinder body, and a pair of safety protective covers are arranged on the protective cover mounting plates. Preferably, the double-linkage self-locking mechanism comprises a driving crank arranged on the gear shaft, two ends of the driving crank are hinged with a pair of connecting rods, a pair of connecting rods are respectively connected with a driven rocker and a self-locking driven rocker, a hinge pin is inserted between the driving crank and the connecting rods, and the driven rocker and the self-locking driven rocker are respectively sleeved on one ends of a pair of bevel gear shafts. Preferably, a pair of valve seat sealing rings are respectively arranged on the openings, and a pair of valve plates are respectively positioned in the pair of valve seat sealing rings. Preferably, the output end of the self-locking cylinder is connected with the input end of the cylinder body Preferably, a guard rail is mounted on the mounting plate. Advantageous effects The utility model provides a closing mechanism for an air inlet and outlet vent, which has the following beneficial effects: 1. Opening motion When the door group needs to be opened, compressed air is firstly introduced into the self-locking air cylinder to unlock, after the unlocking, compressed air is introduced into one end of the pneumatic assembly, the air cylinder piston is connected with the gear shaft through the gear rack, the cavity piston is pushed by the action of the compressed air to drive the gear shaft to rotate, the gear shaft is connected with a driving crank in the double-linkage self-locking mechanism through a key, a conical gear shaft is connected with a driven rocker in the double-linkage self-locking mechanism through the key, the driving crank is driven to rotate through the rotation of the gear shaft, the driving crank is driven to drive the conical gear shaft to rotate, the conical gear shaft drives the gear shaft to rotate, the gear shaft drives the door group to be opened, and the equipment opening and self locking are completed. 2. Closing action When the door group needs to be closed, compressed air is introduced into the other end of the pneumatic assembly, the piston of the air cylinder is connected with the gear shaft through a gear rack, the piston of the air cylinder is pushed by the action of th