CN103643995B - Subway interval protection airtight partition door - Google Patents

Abstract

The invention relates to the field of subway safety doors, in particular to a subway section protective airtight partition door which is connected with a door frame arranged in a subway tunnel and comprises a large door leaf, a small door leaf and a small door leaf overturning driving mechanism, wherein the upper part of the large door leaf is provided with a notch, the small door leaf is arranged at the notch to seal the notch part between the large door leaf and the door frame, the lower part of the small door leaf is hinged with the large door leaf, and the small door leaf overturning driving mechanism drives the small door leaf to overturn on the upper part of the large door leaf. The small turnover door leaf is arranged on the large door leaf, so that the large door leaf is not interfered by a bus bar during sealing operation, and the sealing and separating effect in a subway tunnel is ensured; the small door leaf driving mechanisms are labor-saving manual driving mechanisms, do not depend on electric driving, and can adapt to the power failure condition possibly occurring in emergency.

Description

A protective airtight partition door for a subway section

technical field

The invention relates to the field of subway safety doors, in particular to a protective airtight partition door for a subway section.

Background technique

As a means of transportation that can carry a large number of passengers, the subway makes the subway station a place where a large number of people gather, and safety is particularly important. Therefore, all kinds of unsafe conditions that may arise, even wartime conditions, should be taken into consideration, such as the leakage of harmful gases, terrorist attacks of poisonous gases, how to effectively isolate them in a short period of time, and prevent the above-mentioned gases Spread throughout the subway tunnels, endangering more lives. At the same time, in order to ensure the normal operation of the subway in the tunnel, the upper part of the subway tunnel is inevitably provided with a busbar that runs through the entire tunnel. The existing door body is usually hindered by the busbar and cannot normally perform airtight operations.

Contents of the invention

The purpose of the present invention is to solve the above problems, and provides a protective airtight partition door in the subway section that is not interfered by the busbar, which is specifically realized by the following technical solutions:

A protective airtight partition door for a subway section, connected to a door frame set in a subway tunnel, including a large door leaf, a small door leaf, and a small door leaf turning drive mechanism, a gap is provided on the upper part of the large door leaf, and the small door leaf is placed in the gap Seal the gap between the large door leaf and the door frame, the lower part of the small door leaf is hinged with the large door leaf, and the small door leaf turning drive mechanism drives the small door leaf to turn over at the upper part of the large door leaf.

The protective airtight partition door of the subway section is further designed in that the turning drive mechanism of the small door leaf includes a slider, a connecting rod, and a chute longitudinally arranged on the large door leaf and below the small door leaf, and the slider is slidably set In the chute, both ends of the connecting rod are respectively hinged with the slider and the small door leaf, and the small door leaf turns over as the slider moves up and down.

The protective airtight partition door in the subway section is further designed in that the turning drive mechanism of the small door leaf also includes a worm box with a manual wheel, and the worm box is connected with a screw nut pair and a longitudinally movable guide rod. The slider is connected.

The protective airtight partition door for the subway section is further designed in that a number of guide seats are provided on the large door leaf, and guide shafts are built in the guide seats, and a longitudinal guide groove is opened in the middle of the guide rod, and the guide rod passes through through the guide seat and the guide shaft is located in the guide groove.

The protective airtight partition door of the subway section is further designed in that the guide rod is formed by connecting an upper guide rod and a lower guide rod through a coupling.

The protective airtight partition door in the subway section is further designed in that the turning drive mechanism of the small door leaf includes a pull rod and a hinged rod group cross-hinged by the middle parts of two hinged rods, and the upper end of the hinged rod group is connected with the large door leaf. When the upper ends of the two hinged rods in the hinged rod group approach or move away from each other, the length of the hinged rod group increases or shortens; the hinged rod group is longitudinally arranged below the small door leaf, and the upper ends of the two hinged rods are At the driving end, the lower end of the hinged rod is hinged to the small door leaf through the pull rod, and the small door leaf turns over with the change of the length of the hinged rod group.

The protective airtight partition door of the subway section is further designed in that there are multiple hinged rod groups, and they are hinged in sequence in the longitudinal direction. The upper ends of the two hinged rods in the uppermost hinged rod group are two driving ends. The lower ends of one or two hinged rods of the lower hinged rod group are connected to the lower ends of the pull rods.

The protective airtight partition door of the subway section is further designed in that a lead screw located below the small door leaf is rotatably arranged horizontally on the large door leaf, and a driving end is connected with the lead screw through a nut so that the lead screw rotates , the driving end is close to or far away from the other driving end; or, the two driving ends are connected to the lead screw through a nut, and when the lead screw rotates, the two driving ends move toward or back to each other.

The protective airtight partition door of the subway section is further designed in that the screw is connected to a worm box.

The protective airtight partition door of the subway section is further designed in that the worm box is provided with a manual wheel, and when the manual wheel is turned clockwise or counterclockwise, the screw drives the small door leaf through the nut, hinged rod group and pull rod. Flip over the large leaf.

The protective airtight partition door for the subway section provided by the present invention is provided with a reversible small door leaf on the large door leaf, so that it can not be interfered by the busbar during the sealing operation, so as to ensure the sealing and partition effect in the subway tunnel; the small door leaf of the present invention The driving mechanism adopts relatively labor-saving human-powered driving mechanism, which does not rely on electric drive and can adapt to possible power outages in emergency situations.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a structural schematic diagram of the turning driving mechanism of the small door leaf in Embodiment 1 of the present invention.

Fig. 3 is a structural schematic diagram of the turning driving mechanism of the small door leaf according to Embodiment 2 of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example 1

The protective airtight partition door of the subway section is connected with the door frame set in the subway tunnel, including the large door leaf 1, the small door leaf 2 and the small door leaf turning drive mechanism 3, the upper part of the large door leaf 1 is provided with a gap, and the small door leaf is placed in the gap The gap between the large door leaf and the door frame is sealed, the lower part of the small door leaf is hinged with the large door leaf, and the small door leaf turnover drive mechanism 3 drives the small door leaf to turn over at the top of the large door leaf.

The small door turning drive mechanism 3 includes a slide block 31, a connecting rod 32 and a chute 33 longitudinally arranged on the large door leaf and below the small door leaf. The block 31 and the small door leaf 2 are hinged, and the small door leaf 2 turns over as the slide block moves up and down. The small door turning drive mechanism 3 also includes a worm case 34 with a manual wheel and a longitudinally movable guide rod 35. The bottom part of the guide rod is provided with threads and is connected with the worm gear in the worm case 34 by the threads, so that the worm gear and the guide rod The screw nut pair is formed, the upper end of the guide rod is connected with the slider, and the manual wheel is connected with the worm in the worm box. Turning the manual wheel drives the worm wheel to rotate to make the guide rod produce longitudinal displacement, thereby pulling the slider to move up and down in the chute, and then the small door leaf to flip.

In order to ensure that the transmission direction of the guide rod is stable, several guide seats 36 are provided on the large door leaf. The guide seats have built-in guide shafts, and a longitudinal guide groove 351 is opened in the middle of the guide rod. Inside. In order to facilitate installation and maintenance, the guide rod is formed by connecting an upper guide rod 352 and a lower guide rod 353 through a coupling 354 .

Example 2

The protective airtight partition door of the subway section is connected with the door frame set in the subway tunnel, including the large door leaf 1, the small door leaf 2 and the small door leaf turning drive mechanism 3, the upper part of the large door leaf is provided with a gap, and the small door leaf is placed in the gap for sealing In the gap part between the large leaf and the door frame, the bottom of the small leaf is hinged with the large leaf, and the small door leaf turning drive mechanism 3 drives the small door leaf 2 to turn over at the top of the large leaf 1.

The small door turning drive mechanism 3 includes a pull rod 38 and a hinged rod group 37 cross-hinged in the middle of two hinged rods 371. The upper end of the hinged rod group 37 is connected to the large door leaf. Or when away from, the length of the hinged rod group increases or shortens; Flip as the length of the hinged rod set changes.

If only one hinged rod group is set, in order to ensure that the pull rod has enough travel to pull the small door leaf to turn over, the length of the hinged rod needs to be longer. However, after increasing the length of the hinged rod, the small door leaf will After flipping down into place, the width of the hinged rod is wider, making it affect the opening and cooperation of the large door leaf. Therefore, there are multiple hinged rod groups, which are hinged in sequence in the longitudinal direction. The two hinged rods of the uppermost hinged rod group are The upper end is two driving ends, and the lower end of one or two hinged rods of the lowermost hinged rod group is connected with the lower end of the pull rod. In this way, the stroke of the pull rod is the sum of the length changes of the plurality of hinge rod groups, thereby providing the pull rod with a stroke sufficient to drive the small door leaf to turn over without increasing the length of the hinge rod.

The large door leaf 1 is rotatably horizontally provided with a lead screw 39 located below the small door leaf 2, and one driving end is connected to the lead screw 39 through a nut 391 so that when the lead screw rotates, the driving end approaches or moves away from the other driving end. The other driving end is sleeved on the lead screw so that there is no horizontal displacement relative to the lead screw; or in order to improve the working efficiency, the two driving ends are connected to the lead screw through nuts. Two sets of threads, when the lead screw rotates, the two driving ends move toward each other or back.

In order to take the manpower to drive the screw to rotate as much as possible, the screw 39 is connected with the worm box 34 . The worm box is provided with a manual wheel, and when the manual wheel is turned clockwise or counterclockwise, the lead screw drives the small door leaf to turn over on the large leaf through the nut, the hinged rod group and the pull rod.

The protective airtight partition door for the subway section provided by the present invention is provided with a reversible small door leaf on the large door leaf, so that it can not be interfered by the busbar during the sealing operation, so as to ensure the sealing and partition effect in the subway tunnel; the small door leaf of the present invention The driving mechanism adopts relatively labor-saving human-powered driving mechanism, which does not rely on electric drive and can adapt to possible power outages in emergency situations.

Claims (10)

1. a protective airtight partition door for subway district, be connected with the doorframe be arranged in subway tunnel, it is characterized in that, comprise large door leaf, little door leaf and moved up and down the little door leaf turnover driving mechanism driving little door leaf to spin upside down by bar, the top of described large door leaf is provided with breach, described little door leaf is placed in the barbed portion between this indentation, there described large door leaf of sealing and doorframe, this little door leaf bottom and large door leaf hinged, describedly drive the little door leaf turnover driving mechanism of upset to drive described little door leaf to spin upside down on large door leaf top by bar.

2. protective airtight partition door for subway district according to claim 1, it is characterized in that, described little door leaf turnover driving mechanism comprises slide block, connecting rod and to be longitudinally arranged on large door leaf and the chute be positioned at below little door leaf, described skid is arranged in chute, described connecting rod two ends respectively with described slide block and little door leaf hinged, described little door leaf overturns along with moving up and down of slide block.

3. protective airtight partition door for subway district according to claim 2, it is characterized in that, described little door leaf turnover driving mechanism also comprises one with the worm screw case of manual pulley, described worm screw case is connected with described slide block by feed screw nut pair and a guide rod that can vertically move, rotate described manual pulley, described slide block along chute longitudinal sliding motion, thus drives little door leaf to overturn by connecting rod under the effect of guide rod.

4. protective airtight partition door for subway district according to claim 3, it is characterized in that, described large door leaf is provided with some guide holders, and guide holder is built-in with the axis of guide, have longitudinal gathering sill in the middle part of described guide rod, described guide rod is through guide holder and the described axis of guide is positioned at gathering sill.

5. protective airtight partition door for subway district according to claim 3, is characterized in that, described guide rod is formed by connecting by shaft coupling by top guide bar and lower guide rod.

6. protective airtight partition door for subway district according to claim 1, it is characterized in that, described little door leaf turnover driving mechanism comprises pull bar and the hinge bar group by cross-articulation in the middle part of two hinge bars, the upper end of described hinge bar group is connected with large door leaf, the upper end of two hinge bars in this hinge bar group adjacent to each other or away from time, the length of hinge bar group increases or shortens; Described hinge bar group is longitudinally arranged at below little door leaf, and the upper end of described two hinge bars is two drive ends, the lower end of hinge bar by pull bar and little door leaf hinged, little door leaf overturns along with the change in length of hinge bar group.

7. protective airtight partition door for subway district according to claim 6, it is characterized in that, described hinge bar group has multiple, and it is longitudinally hinged successively, the upper end being positioned at two hinge bars of hinge bar group is topmost two drive ends, and the lower end being positioned at one or two hinge bar of hinge bar group is bottom connected with the lower end of described pull bar.

8. the protective airtight partition door for subway district according to claim 6 or 7, it is characterized in that, described large door leaf is horizontally disposed with the leading screw be positioned at below little door leaf rotationally, a drive end is connected with described leading screw by nut, when making screw turns, this drive end and another drive end near or away from; Or two drive ends are all connected with described leading screw by nut, during screw turns, two drive ends move in opposite directions or dorsad.

9. protective airtight partition door for subway district according to claim 8, is characterized in that, described leading screw is connected with a worm screw case.

10. protective airtight partition door for subway district according to claim 9, it is characterized in that, described worm screw case is provided with manual pulley, clockwise or when rotating counterclockwise manual pulley, described leading screw drives little door leaf to overturn on large door leaf by nut, hinge bar group and pull bar.