CN220395487U - Movable threshold of civil air defense door - Google Patents

Abstract

The utility model discloses a movable threshold of a civil air defense door, which comprises a supporting base, a fixed frame, a lifting threshold, an electric telescopic cylinder and a fixed structure, wherein the fixed frame is arranged on the supporting base, a lifting fixed cavity is arranged in the supporting base, openings are correspondingly formed in the top of the supporting base and the fixed frame, the lifting threshold is in a T-shaped structure, the lifting threshold is slidably arranged on the inner side wall of the supporting base, the upper end of the lifting threshold penetrates through and is slidably arranged at the openings in the top of the supporting base and the fixed frame, the electric telescopic cylinder is arranged in the supporting base, the free end of the electric telescopic cylinder is arranged at the bottom of the lifting threshold, and the fixed structure is arranged in the lifting fixed cavity. The utility model relates to the technical field of anti-theft doors, and particularly provides a movable threshold of a civil air defense door, which has a reasonable and simple structure, is convenient to operate and can be stably fixed on the threshold.

Description

Movable threshold of civil air defense door

Technical Field

The utility model relates to the technical field of civil air defense doors, in particular to a movable threshold of a civil air defense door.

Background

The civil air defense door is more vivid in classification, and comprises a plurality of civil air defense devices such as common single-leaf protective airtight doors, common double-leaf protective airtight doors, common airtight doors, movable threshold single-leaf protective airtight doors, movable threshold double-leaf protective airtight doors and movable threshold double-leaf protective airtight doors. The movable threshold is characterized in that no threshold is installed at ordinary times, the ground is smooth, personnel and vehicles can pass conveniently, the threshold is installed during use, so that the requirements of protection and sealing functions are met, and the civil air defense door is usually installed at the entrances and exits of civil air defense projects such as underground shops, hospitals, warehouses and underground parking garages.

Through searching, the movable threshold of the civil air defense door with the publication number CN208363918U can avoid the complete separation of the threaded rod and the threshold by arranging the limiting block, improves the applicability of the threaded rod, can reduce the collision strength of the threshold and the supporting column by arranging the soft pad, avoids the damage to the outer surface of the threshold, and prolongs the service life of the threshold; the fixed ring is arranged, so that the motor can be prevented from shaking in the working process, the stability of the motor in the working process is improved, the threaded rod is driven by the first gear, the threshold is pushed to the inside of the driving box by the rotation of the threaded rod, and the moving operation of the threshold is completed. The scheme has the defects that the whole structure occupies a large area, the threshold needs to be moved into the middle of the door frame from one side during operation, the speed is low, garbage and foreign matters can be accumulated in the sliding groove in the normal use process, and the risk of affecting the movement of the threshold exists during use.

Disclosure of Invention

Aiming at the situation, in order to make up the prior defects, the utility model provides the movable threshold of the civil air defense door, which has reasonable and simple structure and convenient operation and can stably fix the threshold.

The utility model provides the following technical scheme: the movable threshold of the civil air defense door comprises a supporting base, a fixed frame, a lifting threshold, an electric telescopic cylinder and a fixed structure, wherein the fixed frame is arranged on the supporting base, a lifting fixed cavity is arranged in the supporting base, openings are correspondingly formed in the top of the supporting base and the fixed frame, the lifting threshold is in a T-shaped structure, the lifting threshold is slidably arranged on the inner side wall of the supporting base, the upper end of the lifting threshold penetrates through and is slidably arranged at the openings in the top of the supporting base and the fixed frame, the electric telescopic cylinder is arranged in the supporting base, the free end of the electric telescopic cylinder is arranged at the bottom of the lifting threshold, and the fixed structure is arranged in the lifting fixed cavity.

In order to enable movable threshold support stable and reliable, fixed knot constructs including driving motor, drive screw and drive plate, the drive screw both ends rotate to locate the lift fixed intracavity relative lateral wall, be equipped with the motor storehouse in the support base, in the motor storehouse was located to driving motor, driving motor's power output shaft is connected with drive screw one end, the drive plate is equipped with two sets of, two sets of the drive plate slides and locates between lift fixed intracavity diapire and the roof, be equipped with two sets of screw thread groups on the drive screw, two sets of screw thread groups are the opposite setting of screw thread direction, two sets of the drive plate is located on two sets of screw thread groups of opposite screw thread direction through threaded connection, lift threshold lateral wall bottom is equipped with the fixed slot, two sets of drive plate relative lateral wall is equipped with the fixed block, the fixed block slides and locates in the fixed slot.

Preferably, a supporting cushion block is arranged in the lifting fixing cavity.

Further, the driving motor is a forward and reverse motor.

The movable threshold of the civil air defense door provided by the utility model has the following beneficial effects that the movable threshold adopts the structure:

(1) The lifting threshold is matched with the electric telescopic cylinder, so that the lifting threshold can be quickly lifted up to achieve a sealing effect in a use state, and the lifting threshold is retracted in a non-use state, so that the operation is convenient and efficient;

(2) The fixed knot that sets up constructs can increase the overall stability of lift threshold.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of a movable threshold of a civil air defense door according to the present utility model;

FIG. 2 is a schematic perspective view of a movable threshold of a civil air defense door according to the present utility model;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

fig. 4 is a side view of a lifting threshold of a movable threshold of a civil air defense door according to the present utility model.

The lifting support comprises a support base, a support frame, a lifting threshold, an electric telescopic cylinder, a lifting fixing cavity, a driving motor, a driving screw, a driving plate, a fixing groove, a fixing block, a support cushion block and a support cushion block, wherein the support base is 1, the support frame is 2, the fixing frame is 3, the lifting threshold is 4, the electric telescopic cylinder is 5, the fixing structure is 6, the lifting fixing cavity is 7, the driving motor is 8, the driving screw is 9, the driving plate is 10, the fixing groove is 11, and the support cushion block is 12.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 4, the technical scheme adopted by the utility model is as follows: the utility model provides a movable threshold of people's air defense door, including supporting base 1, fixed frame 2, lift threshold 3, electric telescopic jar 4 and fixed knot constructs 5, fixed frame 2 installs on supporting base 1, be equipped with lift fixed chamber 6 in the supporting base 1, supporting base 1 top and fixed frame 2 correspond and are equipped with the opening, lift threshold 3 is T type structure setting, lift threshold 3 slides and locates supporting base 1 inside wall, lift threshold 3 upper end runs through and slides and locates the opening part on supporting base 1 top and the fixed frame 2, electric telescopic jar 4 locates in supporting base 1, the free end of electric telescopic jar 4 is located lift threshold 3 bottoms, fixed knot constructs 5 and locates in the lift fixed chamber 6.

As shown in fig. 2 and 3, the fixed structure 5 includes driving motor 7, driving screw 8 and driving plate 9, the opposite lateral wall in the lift fixed chamber 6 is located in rotation of driving screw 8 both ends, be equipped with the motor storehouse in the support base 1, driving motor 7 locates in the motor storehouse, driving motor 7's power output shaft is connected with driving screw 8 one end, driving plate 9 is equipped with two sets of, two sets of driving plate 9 slip locate in the lift fixed chamber 6 between diapire and roof, be equipped with two sets of screw thread groups on the driving screw 8, two sets of screw thread groups are the opposite setting of screw thread direction, two sets of driving plate 9 locate on two sets of screw thread groups of opposite screw thread direction through threaded connection, lift threshold 3 lateral wall bottom is equipped with fixed slot 10, two sets of driving plate 9 opposite lateral wall are equipped with fixed block 11, fixed block 11 slip locates in the fixed slot 10.

Wherein, the lifting fixing cavity 6 is internally provided with a supporting cushion block 12. The driving motor 7 is a forward and reverse rotation motor.

During specific use, the initial unused state, lift threshold 3 are in lift fixed intracavity 6, and lift threshold 3 top is to the shutoff of the opening on the fixed frame 2, and convenient vehicle passes through, and when specifically needing to rise lift threshold 3, it runs through the opening on the fixed frame 2 and extends to lift fixed intracavity 6 top to drive lift threshold 3 through electronic telescopic cylinder 4, then starts driving motor 7, and driving motor 7 drives driving screw 8 and rotates, and then drives drive plate 9 motion, slides in fixed slot 10 through fixed block 11 thereby realizes the stable fixed to lift threshold 3.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a movable threshold of people's air defense door, includes support base, fixed frame, electronic flexible jar and lift threshold, its characterized in that: still include fixed knot constructs, fixed frame installs on supporting the base, be equipped with the fixed chamber of going up and down in the supporting the base, supporting base top and fixed frame correspond and are equipped with the opening, the lift threshold sets up for T type structure, the support base inside wall is located in the slip of lift threshold, the opening part on supporting base top and the fixed frame is located in the slip of lift threshold upper end run through, in the supporting base is located to electric telescopic jar, the lift threshold bottom is located to electric telescopic jar's free end, fixed knot constructs and locates in the fixed intracavity of going up and down.

2. The movable threshold of a civil air defense door of claim 1 wherein: the fixed knot constructs including driving motor, drive screw and drive plate, the drive screw both ends rotate and locate the interior relative lateral wall of lift fixed chamber, be equipped with the motor storehouse in the support base, in the motor storehouse was located to driving motor, driving motor's power output shaft is connected with drive screw one end, the drive plate is equipped with two sets of, two sets of the drive plate slides and locates between lift fixed intracavity diapire and the roof, be equipped with two sets of screw thread groups on the drive screw, two sets of screw thread groups are screw thread opposite direction and set up, two sets of on the screw thread group that two sets of screw thread opposite direction was located to the drive plate through threaded connection, lift threshold lateral wall bottom is equipped with the fixed slot, two sets of drive plate relative lateral wall is equipped with the fixed block, the fixed block slides and locates in the fixed slot.

3. The movable threshold of a civil air defense door of claim 2 wherein: and a supporting cushion block is arranged in the lifting fixing cavity.

4. A movable threshold for a civil air defense door according to claim 3 wherein: the driving motor is a forward and reverse rotation motor.