Lifting type threshold civil air defense door

Abstract

The utility model relates to a lifting type threshold civil air defense door, and belongs to the technical field of civil air defense doors, the lifting type threshold civil air defense door comprises a door frame and a door leaf, the door frame is embedded in a door opening, the door leaf is hinged in the door frame, the door frame comprises a door-shaped mounting frame and a lower threshold, a mounting groove used for containing the lower threshold is formed in the ground, and the lower threshold is arranged in the mounting groove in a lifting mode. A containing groove used for containing a door leaf is formed in the top face of the lower doorsill, a first driving piece used for driving the lower doorsill to ascend and descend is arranged in the mounting groove, a bearing plate is hinged to the side wall of the containing groove, and the hinge axis of the bearing plate is parallel to the depth direction of the containing groove. A fixing piece used for fixing the bearing plate is arranged on the side wall of the containing groove. The method has the effect of facilitating vehicle passing.

Description

Technical Field

[0001] The present application relates to the technical field of civil defense doors, and in particular to a lifting threshold civil defense door. Background Art

[0002] Civil defense doors are the entrances and exits of civil defense projects. Civil defense doors are clearly classified, including ordinary single-leaf and double-leaf protective closed doors, single-leaf and double-leaf protective closed doors with movable thresholds, and other civil defense equipment. Ordinary single-leaf and double-leaf protective closed doors have simple structures, reliable operation, and convenient maintenance, but because they have thresholds, they are not conducive to vehicle entry and exit. Single-leaf and double-leaf protective closed doors with movable thresholds usually do not have thresholds installed, and the ground is flat, which is convenient for people and vehicles to pass through. Thresholds are installed when needed to meet the requirements of protection and sealing functions.

[0003] At present, the patent document with the authorization announcement number CN215408267U discloses a lifting threshold civil defense door, including a left door and a right door, the middle of the front surface of the left door and the right door are fixedly connected with a handle, the middle of the front surface of the left door is fixedly connected with a manual switch, the left side of the left door and the right side of the right door are fixedly connected with an axle seat, the axle seat is rotatably connected with a rotating shaft, the rotating shaft is fixedly connected with a fixed block, an upper base is provided above the left door and the right door, the lower surface of the upper base is slidably connected with an upper telescopic platform, the left and right ends of the lower surface of the upper base are fixedly connected with motors, the ends of the two motors away from the upper base are fixedly connected with swing rods, the ends of the two swing rods away from the motors are respectively fixedly connected to the front surface of the left door and the front surface of the right door, and a lower base is provided below the left door and the right door. The structure of the upper telescopic platform and the lower telescopic platform retracting into the base to open the door solves the problem of the threshold blocking the vehicle from entering.

[0004] However, usually when a vehicle or the like drives to the installation groove where the lower base is installed, the installation groove will affect the passing of the vehicle. Utility Model Content

[0005] In order to facilitate the passage of vehicles, the present application provides a lifting threshold civil air defense door.

[0006] The present application provides a lifting type threshold civil air defense door adopts the following technical solution:

[0007] A lifting threshold civil air defense door comprises a door frame and a door leaf, wherein the door frame is embedded in a door opening, and the door leaf is hingedly arranged in the door frame. The door frame comprises a door-shaped installation frame and a lower threshold, and a mounting groove for accommodating the lower threshold is provided on the ground. The lower threshold is lifted and arranged in the installation groove, and a receiving groove for accommodating the door leaf is provided on the top surface of the lower threshold. A first driving member for driving the lower threshold to be lifted and lowered is provided in the installation groove, and a receiving plate is hingedly provided on the side wall of the receiving groove, and the hinge axis of the receiving plate is parallel to the depth direction of the receiving groove, and a fixing member for fixing the receiving plate is provided on the side wall of the receiving groove.

[0008] Optionally, the first driving member includes an electric push rod fixedly arranged on the bottom wall of the mounting groove, the electric push rod body is fixedly arranged on the bottom wall of the mounting groove, the length direction of the electric push rod piston rod is parallel to the depth direction of the mounting groove, and the lower threshold is fixedly arranged on the electric push rod piston rod.

[0009] Optionally, the fixing member includes a fixing rod slidably arranged on the side wall of the accommodating groove, and the fixing rod slides in a direction perpendicular to the side wall of the accommodating groove. When the supporting plate is in a horizontal state, the fixing rod supports and fixes the supporting plate. The fixing member also includes a second driving member that drives the fixing rod to slide and disengage from the supporting plate when the lower door sill is engaged with the door leaf.

[0010] Optionally, the second driving member includes a connecting rope, one end of which is fixedly arranged on the side wall of the installation groove, and the other end enters the lower threshold and is fixedly connected to the end of the fixing rod, and the connecting end of the connecting rope and the fixing rod is in a horizontal state.

[0011] Optionally, a sealing gasket is provided on the receiving plate near the bottom of the installation groove, and the sealing gasket is used when the door leaf relatively enters the receiving groove, and the door leaf presses the receiving plate so that the sealing gasket is compressed on the side wall of the receiving groove.

[0012] Optionally, two receiving plates are provided, and the two receiving plates are respectively located on two side walls of the accommodating groove that are directly opposite to each other.

[0013] Optionally, a mounting shaft is rotatably provided on the side wall of the accommodating groove, the receiving plate is fixedly provided on the mounting shaft, a torsion spring is sleeved on the mounting shaft, one side of the torsion spring is fixedly provided on the mounting shaft, and the other end is fixedly provided on the side wall of the accommodating groove.

[0014] Optionally, a spring is sleeved on the fixing rod, one end of the spring is fixedly arranged on the fixing rod, and the other end of the spring is fixedly arranged on the lower threshold, and the spring drives the fixing rod to have a sliding tendency toward the accommodating groove.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. When the door leaf is in the open state, the receiving plate covers the opening of the receiving groove to close the receiving groove, and the receiving plate is fixed at the above position under the action of the fixing member. When the vehicle passes through the lower threshold, the vehicle passes over the receiving plate, thereby facilitating the vehicle to pass the lower threshold. When the door leaf needs to be in the closed state, the fixing member first releases the fixing effect on the receiving plate, and the receiving plate rotates to fit the side wall of the receiving groove, and then the lower threshold is driven to slide by the first driving member, so that the door leaf is clamped in the receiving groove, thereby completing the closing of the door leaf, thereby improving the impact resistance of the door leaf. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a lifting threshold civil air defense door according to an embodiment of the present application;

[0018] Figure 2 It is a structural schematic diagram of a lower threshold of a lift-type threshold civil defense door according to an embodiment of the present application;

[0019] Figure 3 It is a cross-sectional view of a lower threshold of a lift-type threshold civil air defense door according to an embodiment of the present application;

[0020] Figure 4 yes Figure 3 A magnified schematic diagram of part A;

[0021] Figure 5 It is a structural schematic diagram of a fixed rod receiving a receiving plate in a lifting threshold civil air defense door according to an embodiment of the present application;

[0022] Figure 6 yes Figure 5 Schematic diagram of the enlarged portion B.

[0023] Explanation of the reference numerals: 1. Door frame; 11. Mounting frame; 12. Lower door sill; 2. Door leaf; 3. Mounting groove; 4. Accommodating groove; 5. Receiving plate; 6. Electric push rod; 7. Fixing rod; 8. Connecting rope; 9. Mounting shaft; 10. Spring. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-6 This application is described in further detail.

[0025] The present application embodiment discloses a lifting type threshold civil defense door. Figure 1 and Figure 2The lifting threshold civil air defense door comprises a door frame 1 and a door leaf 2. The door frame 1 is embedded in the door opening. The door leaf 2 is hingedly arranged in the door frame 1. The door leaf 2 is provided with two leaves. The door frame 1 comprises a door-shaped installation frame 11 and a lower threshold 12. The installation frame 11 is embedded in the door opening. A mounting groove 3 for accommodating the lower threshold 12 is provided on the ground. The lower threshold 12 is lifted and arranged in the mounting groove 3. A receiving groove 4 for accommodating the door leaf 2 is provided on the top surface of the lower threshold 12. A first driving member for driving the lower threshold 12 to lift and lower is provided in the mounting groove 3.

[0026] Reference Figure 3 and Figure 4 The side wall of the accommodating groove 4 is hingedly provided with a receiving plate 5, the length of the receiving plate 5 is equal to the length of the accommodating groove 4, the hinge axis of the receiving plate 5 is parallel to the depth direction of the accommodating groove 4, and the side wall of the accommodating groove 4 is provided with a fixing part for fixing the receiving plate 5.

[0027] When the door leaf 2 is in the open state, the receiving plate 5 covers the opening of the accommodating groove 4 to close the accommodating groove 4, and under the action of the fixing member, the receiving plate 5 is fixed at the above-mentioned position. When the vehicle passes through the lower threshold 12, the vehicle passes over the receiving plate 5, thereby facilitating the vehicle to pass the lower threshold 12; when the door leaf 2 needs to be in the closed state, the fixing member first releases the fixing effect of the receiving plate 5, and the receiving plate 5 is rotated to fit the side wall of the accommodating groove 4, and then the lower threshold 12 is driven to slide by the first driving member, so that the door leaf 2 is clamped in the accommodating groove 4, and then the closing of the door leaf 2 is completed, thereby improving the impact resistance of the door leaf 2.

[0028] Reference Figure 2 In the embodiment of the present application, the first driving member includes an electric push rod 6 fixedly arranged on the bottom wall of the mounting groove 3, the electric push rod 6 body is fixedly arranged on the bottom wall of the mounting groove 3, the length direction of the piston rod of the electric push rod 6 is parallel to the depth direction of the mounting groove 3, and the lower threshold 12 is fixedly arranged on the piston rod of the electric push rod 6; when the lower threshold 12 is pushed to engage the door leaf 2, the electric push rod 6 is started, the electric push rod 6 drives the lower threshold 12 to slide, the lower threshold 12 moves toward the door leaf 2, and the door leaf 2 is engaged in the lower threshold 12, and the operation is simple and convenient; and the electric push rod 6 is located in the mounting groove 3, which reduces the impact of the explosion on the electric push rod 6, and facilitates the later opening of the door leaf 2.

[0029] Reference Figure 3 and Figure 4 In the embodiment of the present application, the fixing member includes a fixing rod 7 slidably arranged on the side wall of the receiving groove 4, a plurality of fixing rods 7 are arranged, and the plurality of fixing rods 7 are located in the same horizontal plane. The fixing rod 7 slides in a direction perpendicular to the side wall of the receiving groove 4, and the fixing rod 7 is a rectangular rod. When the receiving plate 5 is in a horizontal state, the fixing rod 7 receives and fixes the receiving plate 5. The fixing member also includes a second driving member that drives the fixing rod 7 to slide and disengage from the receiving plate 5 when the lower threshold 12 is engaged with the door leaf 2;

[0030] Reference Figure 2 , Figure 3 and Figure 4 The second driving member includes a connecting rope 8, which is a steel wire rope. One end of the connecting rope 8 is fixedly arranged on the side wall of the mounting groove 3, and the other end enters the lower threshold 12 and is fixedly connected to the end of the fixing rod 7. The connecting end of the connecting rope 8 and the fixing rod 7 is in a horizontal state.

[0031] When the receiving plate 5 is in a horizontal state, the receiving plate 5 is received on the fixing rod 7. Under the action of the fixing rod 7, the receiving plate 5 is fixed to the above state. When the door leaf 2 needs to enter the lower threshold 12, the electric push rod 6 is started, and the electric push rod 6 drives the lower threshold 12 to move. During the movement of the lower threshold 12, the distance between the lower threshold 12 and the fixed end of the connecting rope 8 gradually increases, and then the connecting rope 8 applies a pulling force to the fixing rod 7, and the fixing rod 7 gradually enters the lower threshold 12 and separates from the receiving plate 5. After the fixing rod 7 is separated, the receiving plate 5 moves toward the side wall of the accommodating groove 4 and fits against the side wall of the accommodating groove 4, so that the lower threshold 12 can enter the accommodating groove 4.

[0032] Reference Figure 3 and Figure 4 In order to improve the sealing effect between the door leaf 2 and the lower threshold 12, a sealing gasket is provided on the receiving plate 5 near the bottom of the mounting groove 3. The sealing gasket is used when the door leaf 2 relatively enters the receiving groove 4. The door leaf 2 squeezes the receiving plate 5 so that the sealing gasket is compressed on the side wall of the receiving groove 4. After the door leaf 2 relatively enters the receiving groove 4, the door leaf 2 squeezes the receiving plate 5 and the sealing gasket, thereby reducing the gap between the door leaf 2 and the lower threshold 12.

[0033] Reference Figure 3 and Figure 4 In the embodiment of the present application, two receiving plates 5 are provided, and the two receiving plates 5 are respectively located on two side walls of the accommodating groove 4 that are opposite to each other.

[0034] Reference Figure 5 and Figure 6 In order to facilitate the receiving plate 5 to return to a horizontal state, a mounting shaft 9 is rotatably provided on the side wall of the accommodating groove 4, and the receiving plate 5 is fixedly provided on the mounting shaft 9. A torsion spring is sleeved on the mounting shaft 9, and one end of the torsion spring is fixedly provided on the mounting shaft 9, and the other end of the torsion spring is fixedly provided on the side wall of the accommodating groove 4; when the lower door sill 12 is separated from the door leaf 2, under the action of the torsion spring, the receiving plate 5 is driven to rotate toward the opening of the accommodating groove 4, and the opening of the accommodating groove 4 is closed, and the operation is simple and convenient.

[0035] Reference Figure 5 and Figure 6In order to facilitate the fixing rod 7 to slide out from the lower threshold 12 and fix the receiving plate 5, a spring 10 is sleeved on the fixing rod 7, one end of the spring 10 is fixedly set on the fixing rod 7, and the other end is fixedly set on the lower threshold 12. The spring 10 drives the fixing rod 7 to have a sliding tendency toward the accommodating groove 4; when the lower threshold 12 moves up, the fixing rod 7 moves toward the inside of the lower threshold 12, and the spring 10 is in a compressed state. When the lower threshold 12 moves down, the spring 10 releases potential energy to drive the fixing rod 7 to move toward the outside of the lower threshold 12, thereby facilitating the receiving of the receiving plate 5.

[0036] The implementation principle of a lifting threshold civil defense door in the embodiment of the present application is:

[0037] When the door leaf 2 is in the open state, the receiving plate 5 covers the opening of the accommodating groove 4 to close the accommodating groove 4, and under the action of the fixing rod 7, the receiving plate 5 is fixed at the above position. When the vehicle passes through the lower threshold 12, the vehicle passes over the receiving plate 5, thereby facilitating the vehicle to pass the lower threshold 12; when the door leaf 2 needs to be in the closed state, first slide the fixing rod 7 to separate from the receiving plate 5, release the fixing effect on the receiving plate 5, and the receiving plate 5 is rotated to fit the side wall of the accommodating groove 4, and then the electric push rod 6 is used to drive the lower threshold 12 to slide, so that the door leaf 2 is clamped in the accommodating groove 4, thereby completing the closing of the door leaf 2, thereby improving the impact resistance of the door leaf 2.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lifting threshold civil air defense door, characterized in that: The invention comprises a door frame (1) and a door leaf (2), wherein the door frame (1) is embedded in a door opening, and the door leaf (2) is hingedly arranged in the door frame (1); the door frame (1) comprises a door-shaped installation frame (11) and a lower threshold (12); a mounting groove (3) for accommodating the lower threshold (12) is provided on the ground, and the lower threshold (12) is lifted and lowered in the installation groove (3); a receiving groove (4) for accommodating the door leaf (2) is provided on the top surface of the lower threshold (12); a first driving member for driving the lower threshold (12) to be lifted and lowered is provided in the installation groove (3); a receiving plate (5) is hingedly arranged on the side wall of the receiving groove (4); the hinge axis of the receiving plate (5) is parallel to the depth direction of the receiving groove (4), and a fixing member for fixing the receiving plate (5) is provided on the side wall of the receiving groove (4).

2. The lifting threshold civil defense door according to claim 1, characterized in that: The first driving member comprises an electric push rod (6) fixedly arranged on the bottom wall of the mounting groove (3); the body of the electric push rod (6) is fixedly arranged on the bottom wall of the mounting groove (3); the length direction of the piston rod of the electric push rod (6) is parallel to the depth direction of the mounting groove (3); and the lower threshold (12) is fixedly arranged on the piston rod of the electric push rod (6).

3. The lifting threshold civil air defense door according to claim 1, characterized in that: The fixing member comprises a fixing rod (7) slidably arranged on the side wall of the receiving groove (4), and the fixing rod (7) slides in a direction perpendicular to the side wall of the receiving groove (4). When the receiving plate (5) is in a horizontal state, the fixing rod (7) receives and fixes the receiving plate (5). The fixing member also comprises a second driving member that drives the fixing rod (7) to slide and disengage from the receiving plate (5) when the lower door sill (12) is engaged with the door leaf (2).

4. The lifting threshold civil air defense door according to claim 3, characterized in that: The second driving member comprises a connecting rope (8), one end of which is fixedly arranged on the side wall of the mounting groove (3), and the other end of which enters the lower threshold (12) and is fixedly connected to the end of the fixing rod (7), and the connecting end of the connecting rope (8) and the fixing rod (7) is in a horizontal state.

5. The lifting type threshold civil air defense door according to claim 1, characterized in that: The receiving plate (5) is provided with a sealing gasket near the bottom of the installation groove (3). The sealing gasket is used when the door leaf (2) relatively enters the receiving groove (4) and the door leaf (2) presses the receiving plate (5) so that the sealing gasket is compressed on the side wall of the receiving groove (4).

6. The lifting threshold civil defense door according to claim 1, characterized in that: Two receiving plates (5) are provided, and the two receiving plates (5) are respectively located on two side walls of the containing groove (4) facing each other.

7. The lifting threshold civil air defense door according to claim 6, characterized in that: A mounting shaft (9) is rotatably arranged on the side wall of the receiving groove (4), the receiving plate (5) is fixedly arranged on the mounting shaft (9), a torsion spring is sleeved on the mounting shaft (9), one end of the torsion spring is fixedly arranged on the mounting shaft (9), and the other end is fixedly arranged on the side wall of the receiving groove (4).

8. The lifting threshold civil air defense door according to claim 3, characterized in that: A spring (10) is sleeved on the fixing rod (7), one end of the spring (10) is fixedly arranged on the fixing rod (7), and the other end is fixedly arranged on the lower threshold (12), and the spring (10) drives the fixing rod (7) to have a sliding tendency toward the receiving groove (4).

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