Ramp inward-opening type double-leaf protective air-tight door

Abstract

The utility model belongs to the technical field of air-tight doors, and particularly relates to a ramp inward-opening type double-leaf protective air-tight door, aiming at the protection problem, the following scheme is provided: the ramp inward-opening type double-leaf protective air-tight door comprises a slope; the slope is fixedly connected with a wall; a protective door is rotationally mounted on the inner surface of the wall; a handle is rotationally mounted on the front surface of the protective door; a hinge is fixedly connected to the outer surface of one side of the protective door, and the protective door is mounted on the inner surface of a wall through the hinge; and the rear surface of the protective door is fixedly connected with a buffer mechanism. Through the arrangement of the buffer mechanism, the protective door and the wall are effectively prevented from being damaged due to the fact that the protective door collides with the wall under the inertia effect when the protective door is opened, and the protective door cannot be opened effortlessly; and through the arrangement of the fixing mechanism, the protection door is fixed, and the protection door can be kept in an open state.

Description

Technical Field

[0001] The utility model relates to the technical field of airtight doors, in particular to a ramp inward-opening double-leaf protective airtight door. Background Technique

[0002] The protective airtight door, also known as the civil air defense door, refers to the protective equipment installed at the entrance of the civil air defense project. The classification of civil air defense doors is relatively distinct, including various civil air defense equipment such as ordinary single- and double-leaf protective airtight doors and airtight doors, and live threshold single- and double-leaf protective airtight doors and airtight doors.

[0003] However, the existing technology still has deficiencies. In the existing technology, there is a lack of a buffer device for the protective door, which easily causes the protective door to collide with the wall and be damaged.

[0004] Therefore, we propose a ramp inward-opening double-leaf protective airtight door to solve this problem. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems raised in the above background technique, and to propose a ramp inward-opening double-leaf protective airtight door.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A ramp inward-opening double-leaf protective airtight door includes a ramp; a wall is fixedly connected to the ramp; a protective door is rotatably installed on the inner surface of the wall; a handle is rotatably installed on the front surface of the protective door; a hinge is fixedly connected to one side outer surface of the protective door, and the protective door is installed on the inner surface of the wall through the hinge; a buffer mechanism is fixedly connected to the rear surface of the protective door.

[0008] Preferably, the buffer mechanism includes a mounting bracket fixedly connected to the rear surface of the protective door and a mounting block fixedly connected to one side outer surface of the wall; a first rotating shaft is fixedly connected to the inner surface of the mounting bracket; a first connecting rod is sleeved on the outer circular surface of the first rotating shaft; a second rotating shaft is rotatably installed on one side of the upper surface of the first connecting rod; a connecting block is fixedly connected to the outer circular surface of the second rotating shaft; a buffer spring is fixedly connected to one side outer surface of the connecting block; a sliding groove is provided on one side outer surface of the mounting block; fixing plates are fixedly connected to both the upper surface and the lower surface of the mounting block; fixing holes are provided on both the upper surface and the lower surface of the mounting block; a fixing mechanism is fixedly connected to the inner surface of the connecting block.

[0009] Preferably, the fixing mechanism includes mounting grooves provided on both the upper surface and the lower surface of the connecting block; fixing blocks are slidably installed on the inner surfaces of the mounting grooves; fixing springs are fixedly connected to the lower surfaces of the fixing blocks.

[0010] Preferably, the fixing block is a trapezoidal block; one end of the fixing spring is fixed to the inner surface of the connecting block.

[0011] Preferably, the connecting block is slidably mounted on the inner surface of the chute; the mounting block is fixed to the outer surface of one side of the wall by the cooperation between the fixing plate and the screw; one end of the buffer spring is fixedly connected to the inner surface of the mounting block.

[0012] In the present utility model, for the ramp-inward-opening double-leaf protection airtight door, through the settings of the protection door, mounting frame, first rotating shaft, connecting rod, second rotating shaft, connecting block, mounting block, chute, buffer spring, fixing hole, and fixing plate, when the protection door is opened by the handle, the rotation of the protection door will drive the connecting rod to move through the mounting frame, the movement of the connecting rod will drive the connecting block to move through the second rotating shaft, and the movement of the connecting block will compress the buffer spring, thereby reducing the rotation speed of the protection door. And the mounting position of the mounting frame is inside the protection door, so the buffer spring will not cause a huge resistance to the opening of the protection door, and will not make the opening of the protection door laborious, effectively preventing the protection door from hitting the wall under the action of inertia when opened, thus causing damage to the protection door and the wall, nor will it make the opening of the protection door laborious;

[0013] In the present utility model, for the ramp-inward-opening double-leaf protection airtight door, through the settings of the connecting block, mounting groove, fixing block, fixing spring, mounting block, and fixing hole, the movement of the connecting block will drive the fixing block to move. When the fixing block moves to directly below the fixing hole, the fixing block will enter the fixing hole under the action of the rebound of the fixing spring to fix the connecting block, thereby fixing the protection door; when it is necessary to close the protection door, push the fixing block to make the fixing block leave the fixing hole. When the fixing block enters the mounting groove, the connecting block will drive the protection door to close under the action of the rebound of the buffer spring, realizing the fixing of the protection door;

[0014] The structure of the present utility model is reasonably designed, simple to operate, and highly reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a ramp-inward-opening double-leaf protection airtight door proposed by the present utility model;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the buffer mechanism in the present utility model;

[0017] Figure 3 is a sectional structural schematic diagram of the fixing mechanism in the present utility model.

[0018] In the figure: 1, slope; 2, wall; 3, protective door; 31, mounting bracket; 32, first rotating shaft; 33, connecting rod; 34, second rotating shaft; 35, connecting block; 351, mounting groove; 352, fixing block; 353, fixing spring; 36, mounting block; 361, sliding groove; 37, buffer spring; 38, fixing hole; 39, fixing plate; 4, handle; 5, hinge. Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Refer to Figures 1-3 , an in-slope inward-opening double-leaf protective airtight door, including a slope 1; a wall 2 is fixedly connected to the slope 1; a protective door 3 is rotatably installed on the inner surface of the wall 2; a handle 4 is rotatably installed on the front surface of the protective door 3; a hinge 5 is fixedly connected to the outer surface of one side of the protective door 3, and the protective door 3 is installed on the inner surface of the wall 2 through the hinge 5; a buffer mechanism is fixedly connected to the rear surface of the protective door 3.

[0021] Further, the buffer mechanism includes a mounting bracket 31 fixedly connected to the rear surface of the protective door 3 and a mounting block 36 fixedly connected to the outer surface of one side of the wall 2; a first rotating shaft 32 is fixedly connected to the inner surface of the mounting bracket 31; a first connecting rod 33 is sleeved on the outer circular surface of the first rotating shaft 32; a second rotating shaft 34 is rotatably installed on one side of the upper surface of the first connecting rod 33; a connecting block 35 is fixedly connected to the outer circular surface of the second rotating shaft 34; a buffer spring 37 is fixedly connected to the outer surface of one side of the connecting block 35; a sliding groove 361 is provided on the outer surface of one side of the mounting block 36; fixing plates 39 are fixedly connected to the upper surface and the lower surface of the mounting block 36; fixing holes 38 are provided on the upper surface and the lower surface of the mounting block 36; a fixing mechanism is fixedly connected to the inner surface of the connecting block 35.

[0022] Further, the fixing mechanism includes mounting grooves 351 provided on the upper surface and the lower surface of the connecting block 35; fixing blocks 352 are slidably installed on the inner surface of the mounting grooves 351; a fixing spring 353 is fixedly connected to the lower surface of the fixing blocks 352.

[0023] Further, the fixing block 352 is a trapezoidal block; one end of the fixing spring 353 is fixed to the inner surface of the connecting block 35.

[0024] Further, the connecting block 35 is slidably installed on the inner surface of the sliding groove 361; the mounting block 36 is fixed to the outer surface of one side of the wall 2 through the cooperation between the fixing plate 39 and the screw; one end of the buffer spring 37 is fixedly connected to the inner surface of the mounting block 36.

[0025] In the present utility model, during use, when the protective door 3 is opened through the handle 4, the rotation of the protective door 3 drives the connecting rod 33 to move through the mounting bracket 31. The movement of the connecting rod 33 drives the connecting block 35 to move through the second rotating shaft 34. The movement of the connecting block 35 compresses the buffer spring 37, thereby reducing the rotation speed of the protective door 3. Moreover, the mounting position of the mounting bracket 31 is inside the protective door 3, so the buffer spring 37 will not cause a huge resistance to the opening of the protective door 3 and will not make it laborious to open the protective door 3, effectively preventing the protective door 3 from hitting the wall 2 under the action of inertia when opened, thus avoiding damage to the protective door 3 and the wall 2, nor will it make it laborious to open the protective door 3. The movement of the connecting block 35 drives the fixed block 352 to move. When the fixed block 352 moves to directly below the fixing hole 38, the fixed block 352 enters the fixing hole 38 under the action of the rebound of the fixing spring 353 to fix the connecting block 35, thereby fixing the protective door 3. When it is necessary to close the protective door 3, the fixed block 352 is pushed to make the fixed block 352 leave the fixing hole 38. When the fixed block 352 enters the mounting groove 351, the connecting block 35 drives the protective door 3 to close under the action of the rebound of the buffer spring 37, realizing the fixation of the protective door 3.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0028] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An in-swing double-leaf airtight and blast door for ramp, characterized in that, It includes a ramp (1); a wall (2) is fixedly connected to the ramp (1); a protective door (3) is rotatably installed on the inner surface of the wall (2); a handle (4) is rotatably installed on the front surface of the protective door (3); a hinge (5) is fixedly connected to the outer surface of one side of the protective door (3), and the protective door (3) is installed on the inner surface of the wall (2) through the hinge (5); a buffer mechanism is fixedly connected to the rear surface of the protective door (3).

2. The inward-opening double-leaf airtight blast door on a ramp according to claim 1, characterized in that, The buffer mechanism includes a mounting bracket (31) fixedly connected to the rear surface of the protective door (3) and a mounting block (36) fixedly connected to the outer surface of one side of the wall (2); a first rotating shaft (32) is fixedly connected to the inner surface of the mounting bracket (31); a first connecting rod (33) is sleeved on the outer circular surface of the first rotating shaft (32); a second rotating shaft (34) is rotatably installed on one side of the upper surface of the first connecting rod (33); a connecting block (35) is fixedly connected to the outer circular surface of the second rotating shaft (34); a buffer spring (37) is fixedly connected to the outer surface of one side of the connecting block (35); a sliding groove (361) is provided on the outer surface of one side of the mounting block (36); fixing plates (39) are fixedly connected to both the upper surface and the lower surface of the mounting block (36); fixing holes (38) are provided on both the upper surface and the lower surface of the mounting block (36); a fixing mechanism is fixedly connected to the inner surface of the connecting block (35).

3. The inward-opening double-leaf airtight and blast door on a ramp according to claim 2, characterized in that, The fixing mechanism includes mounting grooves (351) provided on the upper surface and the lower surface of the connecting block (35); a fixing block (352) is slidably installed on the inner surface of the mounting groove (351); a fixing spring (353) is fixedly connected to the lower surface of the fixing block (352).

4. A ramp-inward-opening double-leaf protective airtight door according to claim 3, characterized in that, The fixing block (352) is a trapezoidal block; one end of the fixing spring (353) is fixed to the inner surface of the connecting block (35).

5. A kind of ramp inward-opening double-leaf protective airtight door according to claim 2, characterized in that, The connecting block (35) is slidably installed on the inner surface of the sliding groove (361); the mounting block (36) is fixed to the outer surface of one side of the wall (2) through the cooperation between the fixing plate (39) and the screw; one end of the buffer spring (37) is fixedly connected to the inner surface of the mounting block (36).

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