CN215804721U

CN215804721U - Threshold and door leaf lifting mechanism of subway entrance and exit section line partition door

Info

Publication number: CN215804721U
Application number: CN202121746322.2U
Authority: CN
Inventors: 孔赞红
Original assignee: Hangzhou Qianjiang Civil Defence Equipment Co ltd
Current assignee: Hangzhou Qianjiang Civil Defence Equipment Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-02-11
Anticipated expiration: 2031-07-29

Abstract

The utility model relates to a doorsill and a partition door structure of a subway entrance and exit section line. A door sill and a door leaf lifting mechanism of a subway entrance and exit section line partition door comprise a door leaf, a door frame and a door sill, wherein a bearing arm is arranged on one side of the door leaf; a screw jack is arranged below the bearing arm and is driven by a second driving piece; install some including first driving piece on the door leaf, first driving piece is connected with the runner spindle, and the runner spindle is connected with first reduction gear and second reduction gear, and the output one end of first reduction gear links to each other with switching lock structure, and the output of second reduction gear links to each other with threshold elevation structure. The utility model provides a lifting mechanism which can realize the lifting of a door leaf and a threshold in a labor-saving way, and utilizes a rotating hand wheel to lift the door leaf of a subway entrance and exit section line threshold and a partition door under the condition of power supply failure in wartime; the technical problems that the lifting of a threshold and a partition door of a subway entrance and exit section line in the prior art is time-consuming and labor-consuming, high in labor intensity and inconvenient to operate are solved.

Description

Threshold and door leaf lifting mechanism of subway entrance and exit section line partition door

Technical Field

The utility model relates to a doorsill and a door leaf structure of a subway entrance and exit section line partition door.

Background

The subway entrance and exit section line is characterized in that a train drives from an underground second floor to a ground parking lot, the slope of a track is large, the normal opening of a protective airtight partition door leaf is influenced, and therefore the lifting and the opening of the door leaf of a traditional partition door are completed by a hand-operated screw jack, and the subway entrance and exit section line has the defects of long time and high labor intensity due to the fact that the hand-operated screw jack is used for the hand-operated screw jack. As in the Chinese patent: "a civil air defense engineering protective door (CN 20210413A) that subway civil air defense used", including the door frame installed in wall, the door body hinged on door frame, and locking unit, lifting threshold unit, anticollision unit; the anti-collision unit is arranged on the outer side of the door body; the lifting threshold unit is arranged below the door body in a lifting manner; the locking unit comprises a telescopic rotating assembly, a transmission assembly, a longitudinal locking assembly and a transverse locking assembly; the transmission assembly, the longitudinal locking assembly and the transverse locking assembly are all arranged on the inner side of the door body, and the telescopic rotating assembly is arranged between the door body and the anti-collision unit in a sliding manner; the power output end of the telescopic rotating assembly respectively drives the longitudinal locking assembly and the transverse locking assembly to lock through the transmission assembly, and drives the lifting threshold unit to lift.

Disclosure of Invention

The utility model provides a threshold and a door leaf lifting mechanism of a subway entrance and exit section line partition door, which can realize the lifting of a door leaf and a threshold by starting the lifting of the door leaf and the threshold by one key, realize the lifting of the door leaf and the threshold quickly and labor-saving, and realize the purpose of protecting and sealing by lifting the door leaf by rotating a hand wheel under the condition of power supply failure in wartime; the technical problems that the lifting of the doorsill and the door leaf of the subway entrance and exit section line partition door in the prior art is time-consuming and labor-consuming, the labor intensity is high and the operation is inconvenient are solved.

The technical problem of the utility model is solved by the following technical scheme: a doorsill and a door leaf lifting mechanism of a subway entrance and exit section line partition door comprises a door leaf, wherein the door leaf is positioned in a door frame, one side of the door leaf is provided with a bearing arm, and the doorsill is arranged below the door leaf; a screw jack is arranged below the bearing arm and is driven by a second driving piece, and the second driving piece comprises a motor and a hand wheel; the door leaf is provided with a first driving piece, the first driving piece is connected with a rotating wheel shaft, the rotating wheel shaft is connected with a first speed reducer and a second speed reducer, one end of an output piece of the first speed reducer is connected with the opening and closing lock structure, and an output piece of the second speed reducer is connected with the threshold lifting structure; the first driving part comprises a motor and a hand wheel.

The first driving piece drives the doorsill to lift and realize opening and closing, and the second driving piece drives the door leaf to lift. The first driving part and the second driving part are driven by double drives, namely can be automatically driven by adopting the motor, and can be manually operated by adopting the hand wheel when meeting special conditions. The stability is good.

The electric of the second driving piece drives the speed reducer through the chain wheel, the speed reducer is connected with the shaft fork and the transmission shaft, the screw jack input shaft is rotated at the same time, the screw rod is driven to rotate through the operation of the pair of conical gears, the sleeve is pushed to downwards support and extend, the bottom of the jack is connected with the door leaf bearing arm, and the door leaf is lifted.

Let the motor of first driving piece drive the runner spindle and rotate, the input piece of first reduction gear and second reduction gear all links to each other with the runner spindle, perhaps uses the runner spindle as the input piece to the rotation of runner spindle lets open shutting structure and threshold elevation structure and begins the function simultaneously, raises the efficiency, improves the convenience of operation, labour saving and time saving.

Preferably, the door leaf is provided with a first proximity switch and a second proximity switch, the door frame is provided with a positioning plate, and the first proximity switch and the second proximity switch are positioned on the upper side and the lower side of the positioning plate. The lifting position of the door leaf is determined through the proximity switch, and the second driving piece is controlled to rotate positively and negatively.

Preferably, the locking and unlocking structure comprises two groups of transverse connecting rods and two groups of longitudinal connecting rods, wherein the two groups of transverse connecting rods are parallel to each other, and the two groups of transverse connecting rods are connected with the longitudinal connecting rods. The two groups of cross rods drive the longitudinal connecting rods, and the unlocking state is stable. The longitudinal connecting rod is connected with the lock head, and the lock head is controlled to be opened and closed through the longitudinal connecting rod.

Preferably, the opening and closing lock structure further comprises an adapter, the adapter comprises a plurality of sections of rotating arms hinged to each other, one end of the adapter is connected with the transverse connecting rod, and the other end of the adapter is connected with an output part of the first speed reducer through a guide rod.

Preferably, the door frame lifting structure comprises a transmission rod connected with an output part of the second speed reducer, the transmission rod is connected with a reversing speed reducer, and an output shaft of the reversing speed reducer is connected to the doorsill through a screw rod structure.

Preferably, the two transmission rods are positioned on the same straight line and are respectively connected with the threshold through a group of reversing speed reducers and screw rod structures.

Preferably, the first speed reducer is a first worm speed reducer, and the second speed reducer is a second worm speed reducer.

Preferably, the motor is a gear reduction motor, and the gear reduction motor is connected with a rotating wheel shaft on which the hand wheel is arranged through a chain wheel structure. The first and second driving members are identical, and the gear reduction motor and the hand wheel are connected with the rotating wheel shaft, so that the manual and automatic dual operation is realized.

Therefore, the threshold and the door leaf lifting mechanism of the subway entrance and exit section line partition door have the following advantages: the automatic and manual dual operation can be realized, and the lifting position of the door leaf is determined by utilizing the proximity switch to realize automatic control; meanwhile, the doorsill, the door leaf and the opening and closing lock can simultaneously act, and time and labor are saved.

Drawings

Fig. 1 is a schematic view of a doorsill and a door leaf lifting mechanism of a subway entrance and exit section line partition door of the present invention.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b):

as shown in fig. 1, the threshold and the door leaf lifting mechanism of the subway entrance and exit section line partition door comprise a door leaf 20, the door leaf 20 is positioned in a door frame 21, a bearing arm 22 is arranged on one side of the door leaf 20, and a threshold 17 is arranged below the door leaf 20. A screw jack 23 is provided below the bearing arm 22. The door leaf 20 is provided with a second gear reducing motor 26, the second gear reducing motor 26 is connected with a third worm gear reducer 27 through chain transmission, an output shaft of the third worm gear reducer 27 is connected with a shaft fork and a transmission shaft 24, an input shaft of a screw jack 23 is rotated at the same time, a screw rod is driven to rotate through the operation of a pair of conical gears, a pushing sleeve is supported downwards to extend, the bottom of the jack is connected with a door leaf bearing arm, the door leaf is lifted by 125 mm, the door leaf is provided with a first proximity switch 11 and a second proximity switch 12, and a positioning plate 19 is arranged on a door frame. When the door leaf is lifted and the first proximity switch 11 positioned below the positioning plate 19 is 5mm away from the positioning plate, the second geared motor 26 stops rotating and the door leaf is opened. When the door leaf needs to be closed, the second gear reduction motor 26 rotates reversely, and when the second proximity switch 12 located above the positioning plate is 5mm away from the positioning plate, the door leaf is closed. At the same time, the opening and closing of the door 20 can be controlled by the second wheel 25 attached to the door.

Still install first gear reduction motor 1 simultaneously on the door leaf, the output shaft of first gear reduction motor 1 passes through the chain and drives the bull wheel axle 2 rotatory, bull wheel axle 2 is the input shaft of first worm gear reducer 4, the one end and the lead screw 6 of the output shaft of first worm gear reducer 4 are connected, lead screw 6 is connected with guide arm 7, the other end of guide arm 7 is connected with two first horizontal connecting rods 8 about through adaptor 5, every first horizontal connecting rod 8 is connected with a vertical connecting rod 10, adaptor 5 comprises a plurality of rocking arms are articulated each other. The two longitudinal links 10 are parallel to each other. A locking head 18 is fixed on the longitudinal link 10.

The other end of the worm wheel shaft of the first worm reducer 4 is also connected with a left second transverse connecting rod 9 and a right second transverse connecting rod 9 through the adaptor 5, and each second transverse connecting rod 9 is connected with a longitudinal connecting rod 10.

The rotating wheel shaft 2 drives an input shaft of a second worm gear reducer 13 to rotate through a chain, an output shaft of the second worm gear reducer 13 is connected with a reversing reducer 15 through a left transmission rod 14 and a right transmission rod 14 respectively, and the reversing reducer 15 drives a threshold 17 to lift through an output shaft sleeve 16 and a screw rod 6.

The rotating wheel shaft 2 is also sleeved with a first hand wheel 3, and the door lock can be opened and closed and the threshold can be lifted through the first hand wheel 3.

Claims

1. The utility model provides a subway discrepancy section line cuts off threshold and door leaf elevating system of door which characterized in that: the door comprises a door leaf, wherein the door leaf is positioned in a door frame, one side of the door leaf is provided with a bearing arm, and a threshold is arranged below the door leaf; a screw jack is arranged below the bearing arm and is driven by a second driving piece, and the second driving piece comprises a motor and a hand wheel; the door leaf is provided with a first driving piece, the first driving piece is connected with a rotating wheel shaft, the rotating wheel shaft is connected with a first speed reducer and a second speed reducer, one end of an output piece of the first speed reducer is connected with the opening and closing lock structure, and an output piece of the second speed reducer is connected with the threshold lifting structure; the first driving part comprises a motor and a hand wheel.

2. The doorsill and door leaf lifting mechanism of a subway entrance and exit section line partition door according to claim 1, characterized in that: the door leaf is provided with a first proximity switch and a second proximity switch, the door frame is provided with a positioning plate, and the first proximity switch and the second proximity switch are positioned on the upper side and the lower side of the positioning plate.

3. The doorsill and door leaf lifting mechanism of a subway entrance and exit section line partition door according to claim 1, characterized in that: the locking and unlocking structure comprises transverse connecting rods and longitudinal connecting rods, the lock head is arranged on the longitudinal connecting rods, the number of the transverse connecting rods is two, the two transverse connecting rods are parallel to each other, and the two transverse connecting rods are connected with the longitudinal connecting rods.

4. The doorsill and door leaf lifting mechanism of a subway entrance and exit section line partition door according to claim 3, characterized in that: the opening and closing lock structure further comprises an adapter, the adapter comprises a plurality of sections of rotating arms which are hinged with each other, one end of the adapter is connected with the transverse connecting rod, and the other end of the adapter is connected with an output part of the first speed reducer through a guide rod.

5. The doorsill and door leaf lifting mechanism of a subway entrance and exit segment line partition door as claimed in any one of claims 1 to 4, wherein: the door frame lifting structure comprises a transmission rod connected with an output piece of the second speed reducer, the transmission rod is connected with a reversing speed reducer, and an output shaft of the reversing speed reducer is connected to the doorsill through a screw rod structure.

6. The doorsill and door leaf lifting mechanism of a subway entrance and exit section line partition door according to claim 5, characterized in that: the two transmission rods are positioned on the same straight line and are respectively connected with the threshold through a group of reversing speed reducers and screw rod structures.

7. The doorsill and door leaf lifting mechanism of a subway entrance and exit segment line partition door as claimed in any one of claims 1 to 4, wherein: the first speed reducer is a first worm speed reducer, and the second speed reducer is a second worm speed reducer.

8. The doorsill and door leaf lifting mechanism of a subway entrance and exit segment line partition door as claimed in any one of claims 1 to 4, wherein: the motor is a gear reduction motor, and the gear reduction motor is connected with a rotating wheel shaft where the hand wheel is located through a chain wheel structure.