Opening and closing mechanism of door

Abstract

The utility model discloses an opening and closing mechanism of a door, which belongs to the field of cleaning type air duct doors and comprises a door plate, an outer end of the door plate is rotatably mounted on a supporting seat, two ends of the door plate are respectively and fixedly provided with two sliding seats, lock rods are slidably mounted on the inner sides of the sliding seats, reinforcing rods are slidably mounted on the inner side of one sliding seat, and a mounting seat is slidably mounted in the middle of the door plate. Two first connecting rods are movably mounted on the mounting seat, a connecting block is movably mounted at the other ends of the first connecting rods, a second connecting rod is fixedly mounted at one end of the connecting block, a second connecting rod is movably mounted at the other end of the connecting block, and lock rods are mounted at the outer ends of the second connecting rods. When the cleaning type air duct door is opened and closed, four directions are locked at the same time, so that the door is attached more tightly, more in place, stable and reliable. The reinforcing rods can be locked for the second time, so that fixation is firmer.

Description

TECHNICAL FIELD

[0001] The utility model relates to clean type air duct door field especially is concerned with a door opening and closing mechanism. BACKGROUND

[0002] Clean type air duct door mainly includes clean type air inlet (exhaust) protective sealed door, has the functions of ventilation and protection, sealing, is located in the air inlet (exhaust) of engineering. Can be opened and closed according to the requirement, satisfy the requirement of engineering ventilation.

[0003] Due to the relatively complex structure of the opening and closing mechanism in the small door of the clean type air duct door, the clean type air duct door opening and closing walking mechanism does not move in place at the time of specific action, and the small door of the air duct door is locked after being closed, which causes the locking to be not firm, and the locking mechanism is loose due to the pressure in the air duct. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a door opening and closing mechanism.

[0005] Technical scheme: including door plate, the outer end of door plate is rotatably installed in support seat, and the both ends of door plate are fixedly installed with two sliding seats respectively, and the inner side of sliding seat is slidably installed with lock rod, and the inner side of one sliding seat is slidably installed with reinforcing rod, and the middle part of door plate is slidably installed with mounting seat, and two connecting rods one are movably installed in mounting seat, and the other end of connecting rod one is movably installed with connecting block, and the one end of connecting block is fixedly installed with connecting rod two, and the other end of connecting block is movably installed with connecting rod two, and the outer end of connecting rod two is installed with lock rod, and the inside of door plate is filled with fireproof material, and the outer end corner of lock rod is rounded.

[0006] By adopting the above technical scheme, the movement of four lock rods is realized by the sliding of mounting seat, the closing of small door is flexible and reliable in place, four directions are locked at the same time when the clean type air duct door is opened and closed, the door is more tightly fitted, is more in place, and is stable and reliable, and the reinforcing rod is set to be locked twice, so that the fixation is more reliable.

[0007] Optionally, the outer end of the door plate is fixedly installed with two rotating plates, and the rotating plates are rotatably installed on the top of the support seat, and the rotating plates are fixedly installed on the outer end of the door plate by bolt connection.

[0008] By adopting the above technical scheme, the rotating plates are rotated on the top of the support seat, and are used for the overturning work of the door plate.

[0009] Optionally, a sliding strip is fixedly installed in the middle part of the door plate, and the mounting seat is slidably installed on the outer side of the sliding strip, and the sliding strip is fixedly installed in the middle part of the door plate by bolt connection.

[0010] By adopting the above technical scheme, the mounting seat is slid on the outer side of the sliding strip, and is used for the overturning and locking of the door plate.

[0011] Optionally, the top of the mounting seat movably mounts a connecting strip one, the other end of the connecting strip one movably mounts a connecting strip two, and the outer side corners of the connecting strip one and the connecting strip two are rounded.

[0012] By adopting the above technical scheme, the connecting strip one and the connecting strip two are used for power transmission.

[0013] Optionally, the other end of the connecting strip two is provided with a connecting shaft, the connecting shaft is mounted at the outer end of a speed reducer, the speed reducer is mounted at the outer end of a motor, the speed reducer is internally provided with a gear for changing the force, and the outer side of the circumference of the motor is provided with a heat dissipation flow channel, so that the air contact area is increased and heat dissipation is accelerated.

[0014] By adopting the above technical scheme, the motor rotates, the speed reducer is driven, and the opening and closing of the door plate are realized.

[0015] Optionally, the bottom of the motor is fixedly provided with a fixed seat, and the motor is fixedly mounted at the top of the fixed seat through a bolt connection mode.

[0016] By adopting the above technical scheme, the fixed seat is used for fixing the motor.

[0017] Optionally, the bottom surface of the door plate is fixedly provided with a sealing ring, and the sealing ring is fixedly mounted at the bottom of the door plate through a bolt connection mode.

[0018] By adopting the above technical scheme, the sealing ring is used for realizing the sealing between the door plate and the air duct.

[0019] Optionally, the rear end of the reinforcing rod movably mounts a push plate, the push plate is rotatably mounted at the top of a push seat, the outer end of the push seat movably mounts a piston, the piston is mounted at the other end of the push plate, and the push seat is internally provided with a transmission component.

[0020] By adopting the above technical scheme, the push seat works, the piston moves, and the rotation of the push plate is realized.

[0021] Beneficial effects: 1. The mounting seat slides, realizes the movement of the four locking rods, ensures that the opening and closing of the small door are flexible, reliable and in place, simultaneously locks four directions when the cleaning type air duct door is opened and closed, makes the door fit more tightly and more in place, and is stable and reliable; 2. The reinforcing rod provided in the utility model can be locked twice, so that the fixation is more reliable. DRAWINGS

[0022] Fig. 1 is the overall structure diagram of the embodiment of the utility model;

[0023] Fig. 2 is the bottom structure diagram of the embodiment of the utility model;

[0024] Fig. 3 is a top view structural diagram of an embodiment of the utility model;

[0025] Fig. 4 is a power structure diagram of an embodiment of the utility model;

[0026] Fig. 5 is a rotation structure diagram of an embodiment of the utility model;

[0027] Mark explanation: 1, door board;2, lock rod;3, reinforcing rod;4, rotating plate;5, connecting strip one;6, connecting strip two;7, sealing ring;8, sliding seat;9, push plate;10, push seat;11, connecting rod two;12, connecting block;13, connecting rod one;14, mounting seat;15, slide strip;16, speed reducer;17, motor;18, fixed seat;19, connecting shaft;20, support seat;21, piston. Specific implementation

[0028] In order to make the technical scheme of the application clearer, the application is further described in detail below in combination with the drawings and specific embodiments, such as Figs. 1 to 5 , including door board 1, door board 1 one outer end rotation installation in support seat 20, the both ends of door board 1 are fixedly installed with two sliding seats 8, the inner side of sliding seat 8 is slidably installed with lock rod 2, one sliding seat 8 inner side is slidably installed with reinforcing rod 3, the middle part of door board 1 is slidably installed with mounting seat 14, mounting seat 14 is movably installed with two connecting rod one 13, the other end of connecting rod one 13 is movably installed with connecting block 12, one end of connecting block 12 is fixedly installed with connecting rod two 11, the other end of connecting block 12 is movably installed with connecting rod two 11, the outer end of connecting rod two 11 is installed with lock rod 2, the mounting seat 14 of the utility model realizes the movement of four lock rods 2 by sliding, guarantees that the closing of small door is flexible and reliable to reach the position, when the cleaning type air duct door is opened and closed, four directions are locked simultaneously, so that the door is more tightly adhered, is more in place, stable and reliable;The reinforcing rod 3 set in the utility model can be locked twice, so that the fixation is more reliable.

[0029] The outer end of door board 1 is fixedly installed with two rotating plates 4, and the rotating plates 4 are rotatably installed on the top of support seat 20.

[0030] The middle part of door board 1 is fixedly installed with slide strip 15, and the outer side of slide strip 15 is slidably installed with mounting seat 14.

[0031] The top of mounting seat 14 is movably installed with connecting strip one 5, and the other end of connecting strip one 5 is movably installed with connecting strip two 6.

[0032] The other end of connecting strip two 6 is installed with connecting shaft 19, the connecting shaft 19 is installed on the outer end of speed reducer 16, and the speed reducer 16 is installed on the outer end of motor 17.

[0033] The bottom of motor 17 is fixedly installed with fixed seat 18.

[0034] The bottom surface of the door plate 1 is fixedly provided with a sealing ring 7.

[0035] The rear end of the reinforcing rod 3 is movably provided with a push plate 9, the push plate 9 is rotatably provided on the top of a push base 10, the outer end of the push base 10 is movably provided with a piston 21, and the piston 21 is provided on the other end of the push plate 9.

[0036] The implementation principle of the door opening and closing mechanism is as follows: when the door opening and closing mechanism is used, the control motor 17 is rotated to make the speed reducer 16 work, the connecting shaft 19 is rotated to drive the connecting strip two 6 to move, the connecting strip one 5 is driven to move to make the connecting block 12 move, the four connecting rods two 11 are driven to move to slide on the inner side of the sliding base 8 to lock the door plate 1, the mounting base 14 slides on the outer side of the sliding strip 15 to drive the two connecting rods one 13 to move to make the push base 10 work to make the piston 21 move, the piston 21 drives the push plate 9 to rotate, and the reinforcing rod 3 enters the second locking position to lock the door plate 1 again.

[0037] The above embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A door opening and closing mechanism, characterized in that: The utility model provides a door plate (1), the door plate (1) one outer end rotatory mounting is in support seat (20), two slide blocks (8) are fixedly installed respectively in the both ends of door plate (1), locking rod (2) is slidably installed in the inboard of slide block (8), one inboard sliding installation of slide block (8) has reinforcing rod (3), the middle part sliding installation of door plate (1) has mounting seat (14), two connecting rods one (13) are movably installed in mounting seat (14), the other end movably installed in connecting block (12) of connecting rod one (13), connecting block (12) one end fixedly installed has connecting rod two (11), the other end movably installed in connecting block (12) has connecting rod two (11), locking rod (2) is installed in the outer end of connecting rod two (11).

2. A door operator according to claim 1, wherein: The door plate (1) one outer end fixedly installed has two rotary plates (4), the rotary plate (4) rotatory mounting is in support seat (20) top.

3. A door operator according to claim 1, wherein: The middle part fixedly installed of door plate (1) has sliding strip (15), the sliding strip (15) outer side sliding installation has mounting seat (14).

4. A door operator mechanism according to claim 1, wherein: The mounting seat (14) top movably installed has connecting strip one (5), the other end movably installed of connecting strip one (5) has connecting strip two (6).

5. A door operator mechanism according to claim 4, wherein: The other end of connecting strip two (6) is installed with connecting shaft (19), and the connecting shaft (19) is installed in the outer end of speed reducer (16), and the speed reducer (16) is installed in the outer end of motor (17).

6. A door operator mechanism according to claim 5, wherein: The motor (17) bottom fixedly installed has fixed seat (18).

7. A door operator mechanism according to claim 1, wherein: The bottom surface fixedly installed of door plate (1) has sealing ring (7).

8. A door operator according to claim 1, wherein: The reinforcing rod (3) rear end movably installed has push plate (9), and the push plate (9) rotatory mounting is in the top of push seat (10), and the outer end movably installed of push seat (10) has piston (21), and the piston (21) is installed in the other end of push plate (9).

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