CN214532603U

CN214532603U - Reinforced concrete movable threshold single-leaf protective airtight door

Info

Publication number: CN214532603U
Application number: CN202120252589.XU
Authority: CN
Inventors: 张玉东
Original assignee: Ningbo Mintai Civil Air Defense Equipment Co ltd
Current assignee: Ningbo Mintai Civil Air Defense Equipment Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-10-29
Anticipated expiration: 2031-01-29

Abstract

The application discloses a reinforced concrete movable doorsill single-leaf protective airtight door, which comprises a door frame and a door body, wherein the door body is rotatably arranged on one side of the door frame, a storage box is arranged at the bottom of the door frame, the storage box is embedded in the ground, a doorsill is arranged in the storage box, the two ends of the doorsill are rotatably connected with the storage box, a rotating reset device for rotating the doorsill to the vertical direction is arranged in the storage box, when the doorsill is rotated to the vertical direction, the top of the doorsill is higher than the storage box, a locking device is arranged in the door frame, a locking groove is formed at the bottom of the doorsill, the locking device can be matched with the locking groove to fix the doorsill in the horizontal direction, an unlocking piece is arranged on the door body, the unlocking piece can enable the locking device to be separated from the locking groove, the airtight door can be easily opened and closed, the doorsill can be automatically popped out to seal when the door body is closed, the passing difficulty is reduced, and the door body is far away from the ground, the abrasion and collision are not easy to occur.

Description

Reinforced concrete movable threshold single-leaf protective airtight door

Technical Field

The application relates to the technical field of civil air defense equipment, in particular to a reinforced concrete movable threshold single-leaf protective airtight door.

Background

The civil air defense door is a door of an entrance and an exit of civil protection engineering, and the classification of the civil air defense door is more distinct, and the civil air defense door comprises various civil air defense devices such as common single-leaf and double-leaf protective airtight doors and airtight doors, a movable door threshold single-leaf and double-leaf protective airtight doors and the like.

However, the existing airtight door has the following defects: in order to increase the structural strength of the airtight door, the door frame with a large size is usually provided, the trafficability of pedestrians or vehicles can be affected, if a sill-free design is required, the structure of the door frame is usually not changed in order to ensure the strength of the door frame, only the lower part of the door frame is pre-buried, once the ground at the pre-buried part is not smooth enough, the door body is easy to abrade and collide when being opened, and if the door body is made of reinforced concrete, the door body has high protection performance, but has high weight and is inconvenient to open and close.

Disclosure of Invention

An aim at of this application provides a switching is light, and the threshold can be accomodate and hide, and the threshold can auto-eject carries out confined reinforced concrete movable threshold single leaf protective airtight door when the door body is closed.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: the utility model provides a reinforced concrete threshold single leaf protection airtight door that lives, includes the door frame and the door body, the door body rotate set up in door frame one side, the door frame bottom is provided with the receiver, the receiver inlays in locating the ground, be provided with the threshold in the receiver, the threshold both ends with the receiver rotates to be connected, be provided with in the receiver be used for with the threshold rotates to the rotation resetting means of vertical direction, when the threshold rotates to vertical direction, the top of threshold is higher than the receiver, install locking device in the door frame, locking groove has been seted up to the threshold bottom, locking device can cooperate the locking groove will the threshold is fixed on the horizontal direction, be provided with the deblocking piece on the door body, the deblocking piece can make locking device breaks away from the locking groove.

Specifically, the locking device comprises a connecting rod, a key and a return spring, a containing cavity is formed in the door frame, the key is arranged in the containing cavity in a sliding mode, the connecting rod is arranged above the key in a sliding mode, the tail portion of the key is matched with the return spring, the top of the key can penetrate through the door frame to be matched and clamped with the locking groove, inclined grooves matched with the unlocking piece and the key are formed in the two ends of the connecting rod, and the unlocking groove is formed in the door frame; the unlocking piece can penetrate through the unlocking groove to extrude the end part of the connecting rod, so that the connecting rod slides downwards to push the key to be separated from the locking groove.

As an improvement, the bottom of the door body is provided with a roller, the doorsill is provided with a groove, and when the door body is closed, the roller can be accommodated in the groove of the erected doorsill.

As an improvement, the rotary reset device comprises a torsion spring, and the torsion spring is connected and arranged at the two ends of the doorsill.

As an improvement, a sealing strip is arranged at the top of the doorsill, and the sealing strip can be matched with the erected doorsill for sealing.

Compared with the prior art, the beneficial effect of this application lies in: change the fixed threshold of traditional airtight door into the threshold that can accomodate, flush with ground when the threshold is accomodate, increase the trafficability characteristic of pedestrian and vehicle, the unblock of locking device can be controlled when the door body is closed, make the threshold automatic stand, the cooperation door body seals, can raise the door body when guaranteeing door body barrier property, avoid the door body to take place wearing and tearing collision deformation with ground contact, still utilize the door body to raise in addition and set up the gyro wheel bottom the door body, make things convenient for the switching of the door body, imbed the cooperation mutually between gyro wheel and the threshold, utilize the fixed threshold of gyro wheel when can making the door body close, increase structural stability and leakproofness, avoid the door body not to take place to accomodate under the open mode threshold.

Drawings

Fig. 1 is a schematic structural view of a door body according to a preferred embodiment of the present application when opened;

fig. 2 is a schematic structural view when a door body according to a preferred embodiment of the present application is closed;

fig. 3 is a front view of a door body according to a preferred embodiment of the present application when closed;

FIG. 4 is a cross-sectional view taken along the line A-A of FIG. 3, in accordance with a preferred embodiment of the present application;

FIG. 5 is an enlarged view of the structure of FIG. 4 in the upright condition of the threshold according to a preferred embodiment of the present application;

FIG. 6 is a structural schematic view of a threshold stowed condition in accordance with a preferred embodiment of the present application;

fig. 7 is an enlarged view at b of fig. 2 according to a preferred embodiment of the present application.

In the figure: 1. a door frame; 11. a locking device; 111. a connecting rod; 1111. a chute; 112. a key; 113. a return spring; 12. an accommodating chamber; 13. unlocking the groove; 2. a door body; 21. unlocking the lock; 22. a roller; 3. a storage box; 31. a rotational reset device; 4. a threshold; 41. a locking groove; 42. a sealing strip; 43. and (4) a groove.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present application is further described with reference to the accompanying drawings:

as shown in fig. 1 to 4, a preferred embodiment of the present application includes a door frame 1 and a door body 2, the door body 2 is rotatably disposed on one side of the door frame 1, a receiving box 3 is disposed at the bottom of the door frame 1, the receiving box 3 is embedded in the ground, the top of the receiving box 3 is flush with the ground, a door sill 4 is disposed in the receiving box 3, two ends of the door sill 4 are rotatably connected to the receiving box 3, a rotation resetting device 31 for rotating the door sill 4 to a vertical direction is disposed in the receiving box 3, when the door sill 4 is rotated to the vertical direction, the top of the door sill 4 is higher than the receiving box 3, and is also higher than the ground, so as to ensure that the bottom of the door body 2, the receiving box 3 and the ground are kept at a certain distance, prevent the ground from being uneven and contacting the door body 2 to generate abrasion, collision and deformation, a locking device 11 is installed in the door frame 1, a locking groove 41 is formed at the bottom of the door sill 4, the locking device 11 can cooperate with the locking groove 41 to fix the door sill 4 in a horizontal direction, the door body 2 is provided with an unlocking piece 21, and the unlocking piece 21 can disengage the locking device 11 from the locking groove 41.

The threshold 4 needs to be manually laid down to the horizontal direction in the storage process of the threshold 4, the locking device 11 can automatically lock the threshold 4, the threshold 4 cannot be erected, and due to the fact that the threshold 4 is provided with edges and corners, gaps for rotation of the threshold 4 need to be reserved in the storage box 3, and it is guaranteed that the movement of the threshold 4 cannot be blocked.

The rotary reset device 31 comprises torsion springs, the torsion springs are connected and arranged at two ends of the threshold 4, the structure of the torsion springs is simple, and the maintenance and the replacement are convenient.

As shown in fig. 5 to 6, the locking device 11 includes a connecting rod 111, a key 112 and a return spring 113, a containing cavity 12 is formed in the door frame 1, the key 112 is slidably disposed in the containing cavity 12, the connecting rod 111 is slidably disposed above the key 112, a tail portion of the key 112 is disposed in cooperation with the return spring 113, a top portion of the key 112 can penetrate through the door frame 1 to be in fit and snap-connected with the locking groove 41, two ends of the connecting rod 111 are provided with inclined grooves 1111 that are matched with the unlocking piece 21 and the key 112, and the door frame 1 is provided with an unlocking groove 13; the unlocking piece 21 can penetrate through the unlocking groove 13 to press the end part of the connecting rod 111, so that the connecting rod 111 slides downwards to push the key 112 to be separated from the locking groove 41, after the key 112 is separated from the locking groove 41, the limitation of the threshold 4 is released, and the threshold 4 can be rotated to the vertical direction by rotating the resetting device 31.

Threshold 4 top is provided with sealing strip 42, and sealing strip 42 can cooperate the threshold 4 of standing up to seal, and when threshold 4 rotated and accomodate in receiver 3, sealing strip 42 also can be accomodate to receiver 3 along with threshold 4's rotation in, reduces sealing strip 42's wearing and tearing and ageing, guarantees the leakproofness between threshold 4 and the door body 2.

As shown in fig. 7, the bottom of the door body 2 is provided with the roller 22, the threshold 4 is provided with the groove 43, when the door body 2 is closed, the roller 22 can be accommodated in the groove 43 of the erected threshold 4, the roller 22 is arranged at the bottom of the door body 2 by lifting the door body 2, the door body 2 is convenient to open and close, the roller 22 and the threshold 4 are mutually embedded and matched, the threshold 4 can be fixed by the roller 22 when the door body 2 is closed, the structural stability and the sealing performance are improved, and the threshold 4 is prevented from being accommodated when the door body 2 is not opened.

Meanwhile, in order to ensure the realization of the structural design, the threshold 4 needs to be erected before the door body 2 is closed, so the unlocking piece 21 and the locking device 11 need to be installed at the rotating connection side of the door body 2 and the door frame 1, when the door body 2 is in a closing trend, the unlocking piece 21 can extend into the unlocking groove 13 to control the locking device 11 to unlock, so that the threshold 4 is preferentially erected, and then the door body 2 is closed after that, so that the pulley can be embedded into the groove 43.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. The utility model provides a reinforced concrete running door threshold single leaf protective airtight door which characterized in that: including door frame and the door body, the door body rotate set up in door frame one side, the door frame bottom is provided with the receiver, the receiver inlays in locating the ground, be provided with the threshold in the receiver, the threshold both ends with the receiver rotates to be connected, be provided with in the receiver be used for with the threshold rotates to the rotation resetting means of vertical direction, when the threshold rotates to vertical direction, the top of threshold is higher than the receiver, install locking device in the door frame, the locking groove has been seted up to the threshold bottom, locking device can cooperate the locking groove will the threshold is fixed on the horizontal direction, be provided with the deblocking spare on the door body, the deblocking spare can make locking device breaks away from the locking groove.

2. The reinforced concrete movable threshold single-leaf protective airtight door of claim 1, characterized in that: the locking device comprises a connecting rod, a key and a return spring, a containing cavity is formed in the door frame, the key is arranged in the containing cavity in a sliding mode, the connecting rod is arranged above the key in a sliding mode, the tail portion of the key is arranged in a matched mode with the return spring, the top of the key can penetrate through the door frame to be in matched clamping connection with the locking groove, inclined grooves matched with the unlocking piece and the key are formed in the two ends of the connecting rod, and the door frame is provided with an unlocking groove; the unlocking piece can penetrate through the unlocking groove to extrude the end part of the connecting rod, so that the connecting rod slides downwards to push the key to be separated from the locking groove.

3. The reinforced concrete movable threshold single-leaf protective airtight door of claim 1, characterized in that: the door body bottom is provided with the gyro wheel, be provided with the recess on the threshold, when the door body was closed, the gyro wheel can be acceptd to the cocked recess of threshold.

4. The reinforced concrete movable threshold single-leaf protective airtight door of claim 1, characterized in that: the rotary reset device comprises a torsional spring, and the torsional spring is connected and arranged at the two ends of the doorsill.

5. The reinforced concrete movable threshold single-leaf protective airtight door of claim 1, characterized in that: the top of the doorsill is provided with a sealing strip, and the sealing strip can be matched with the erected doorsill to seal.