Civil air defense door with disassembly and assembly structure
By using articulated door frames, threaded connections and guide mechanisms in the civil defense door, the problem of sill depression caused by trampling of the civil defense door is solved, stable installation and convenient replacement of the thresholds are achieved, and resource waste is reduced.
Patent Information
- Application Number
- CN202420245670.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-01
AI Technical Summary
During the open use of existing personal security doors, the threshold is prone to depression due to trampling, and it is difficult to replace the fixed welded door frame, which wastes resources.
A civil defense door with a disassembly structure is designed, using hinged door frames, threaded connections, installation grooves, grooves and guide mechanisms. The door sill is realized through components such as arc rods, rotating rods, torsion springs, clamping grooves and load-bearing springs. Stable installation and convenient replacement.
This design makes the threshold more stable during installation, prevents shaking, and is convenient for replacement, avoids the problem of depression caused by trampling, and simplifies the threshold replacement process and reduces the need for overall door frame replacement.
Smart Images
Figure CN222207665U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of civil air defense engineering, in particular to a civil air defense door with a disassembly and assembly structure. Background Art
[0002] Civil defense doors are the doors at the entrances and exits of people's defense projects. There are distinct classifications of civil defense doors, including ordinary single-leaf and double-leaf protective closed doors and closed doors, double-leaf protective closed doors and closed doors, and other types of civil defense equipment.
[0003] In the prior art, when the civil air defense door is open for use, a large number of people will pass through, and the threshold will be continuously stepped on during this process. Over time, the threshold will become concave, and the existing civil air defense door thresholds are generally fixed and welded. When damaged, the entire door frame needs to be replaced, which causes waste. In view of this, we propose a civil air defense door with a disassembly and assembly structure. Utility Model Content
[0004] The purpose of the utility model is to provide a civil air defense door with a disassembly and assembly structure to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a civil air defense door with a disassembly and assembly structure, comprising a door frame, a civil air defense door is hingedly connected inside the door frame, a threshold is arranged on the door frame, a fastening bolt is threadedly connected inside the door frame, a mounting groove is provided inside the door frame, a groove is provided on the side of the mounting groove, a mounting mechanism is provided inside the groove and on the threshold, a guide mechanism is provided inside the door frame and on the threshold, and the mounting mechanism comprises:
[0006] A rotating rod, the rotating rod being rotatably connected to the inner wall of the groove;
[0007] A torsion spring, one end of which is fixedly connected to the outer wall of the rotating rod, and the other end of which is elastically connected to the inner wall of the groove;
[0008] A card slot is provided on the side wall of the threshold.
[0009] Preferably, an arc-shaped rod is fixedly passed through the interior of the rotating rod, one end of the arc-shaped rod is located inside the mounting groove, and the other end of the arc-shaped rod is located inside the groove.
[0010] Preferably, the guide mechanism comprises a guide rod, and the guide rod is fixedly mounted on the outer wall of the door sill.
[0011] Preferably, a baffle is fixedly mounted on the outer wall of the threshold, and the baffle is located directly above the guide rod.
[0012] Preferably, a guide groove adapted to the guide rod is provided inside the door frame, and a load-bearing spring is fixedly mounted on the inner wall of the guide groove.
[0013] Preferably, a guide block is fixedly mounted on the end of the load-bearing spring, and the guide block is slidably connected to the inner wall of the guide groove.
[0014] Compared with the prior art, the utility model provides a civil air defense door with a disassembly and assembly structure, which has the following beneficial effects:
[0015] 1. The civil air defense door with a disassembly and assembly structure is squeezed by the arc rod in the installation mechanism when the threshold is installed, so that the upper end of the arc rod can be connected to the inside of the card slot by rotation, so that the threshold can be installed more stably and prevent shaking and instability when stepped on.
[0016] 2. The civil air defense door with a disassembly and assembly structure has a guide rod in the guide mechanism inserted into the inside of the guide groove for sliding, which prevents the threshold from shifting during the installation process. At the same time, the setting of the load-bearing spring can enable the guide rod to drive the threshold to move out of the installation groove for easy removal and replacement of the threshold. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall front view structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;
[0019] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle;
[0020] Figure 4 For this utility model Figure 2 A magnified schematic diagram of structure B in the middle.
[0021] In the figure: 1. door frame; 2. civil air defense door; 3. door sill; 4. fastening bolt; 5. mounting slot; 6. groove; 7. mounting mechanism; 71. rotating rod; 72. torsion spring; 73. arc rod; 74. slot; 8. guide mechanism; 81. guide rod; 82. baffle; 83. guide slot; 84. load-bearing spring; 85. guide block. DETAILED DESCRIPTION
[0022] like Figure 1-Figure 4As shown, the utility model provides a technical solution: a civil air defense door with a disassembly and assembly structure, comprising a door frame 1, a civil air defense door 2 hinged inside the door frame 1, a threshold 3 is arranged on the door frame 1, and the threshold 3 is installed by pushing the threshold 3 downward, the internal thread of the door frame 1 is connected with a fastening bolt 4, and the threshold 3 can be installed by fastening the bolt 4, an installation groove 5 is provided inside the door frame 1, a groove 6 is provided on the side of the installation groove 5, an installation mechanism 7 is provided inside the groove 6 and on the threshold 3, and a guide mechanism 8 is provided inside the door frame 1 and on the threshold 3.
[0023] In this embodiment, a mounting mechanism 7 is provided inside the groove 6 and on the threshold 3. When the threshold 3 is installed, the arc rod 73 in the mounting mechanism 7 is squeezed, so that the upper end of the arc rod 73 can be connected to the inside of the slot 74 by rotation, so that the threshold 3 can be installed more stably and prevent shaking and instability when stepped on.
[0024] In this embodiment, a guide mechanism 8 is provided inside the door frame 1 and on the threshold 3. The guide rod 81 in the guide mechanism 8 is inserted into the inside of the guide groove 83 for sliding, thereby preventing the threshold 3 from shifting during the installation process. At the same time, the support spring 84 is provided to enable the guide rod 81 to drive the threshold 3 to move out of the installation groove 5 for easy removal, thereby facilitating the replacement of the threshold 3.
[0025] The above-mentioned mounting mechanism 7 includes a rotating rod 71, which is rotatably connected to the inner wall of the groove 6, the outer wall of the rotating rod 71 is fixedly connected to one end of a torsion spring 72, the other end of the torsion spring 72 is elastically connected to the inner wall of the groove 6, and a clamping groove 74 is provided on the side wall of the threshold 3. An arc rod 73 is fixedly passed through the interior of the rotating rod 71. By squeezing one end of the arc rod 73 during the installation process of the threshold 3, the other end of the arc rod 73 can be rotated and clamped in the interior of the clamping groove 74, so that the threshold 3 can be installed more stably, one end of the arc rod 73 is located in the interior of the mounting groove 5, and the other end of the arc rod 73 is located in the interior of the groove 6.
[0026] The above-mentioned guide mechanism 8 includes a guide rod 81, which is fixedly installed on the outer wall of the threshold 3. The setting of the guide rod 81 prevents the threshold 3 from shifting during the installation process. A baffle 82 is fixedly installed on the outer wall of the threshold 3, and the baffle 82 is located directly above the guide rod 81. Through the setting of the baffle 82, the upper part of the guide groove 83 is closed when the threshold 3 is installed to prevent dust accumulation and blockage. A guide groove 83 adapted to the guide rod 81 is opened inside the door frame 1, and a load-bearing spring 84 is fixedly installed on the inner wall of the guide groove 83. A guide block 85 is fixedly installed on the end of the load-bearing spring 84. Through the elastic force of the load-bearing spring 84, the guide rod 81 can drive the threshold 3 to move out of the installation groove 5 for easy removal, and the guide block 85 is slidably connected to the inner wall of the guide groove 83.
[0027] The guide rod 81 is inserted into the guide groove 83 and slides to prevent displacement, and then the guide rod 81 supports the guide block 85 and continues to move downward to compress the bearing spring 84. During the installation process, the door sill 3 moves into the installation groove 5 to squeeze one end of the arc rod 73, so that the arc rod 73 rotates, and finally the other end of the arc rod 73 is connected to the inside of the card groove 74 by rotation, so that the door sill 3 can be installed more stably. Finally, the installation of the door sill 3 is completed by fastening the bolt 4. When the door sill 3 needs to be disassembled, the fastening bolt 4 is removed. At this time, the elastic force generated by the bearing spring 84 in the compressed state causes the guide rod 81 to drive the door sill 3 to move out of the installation groove 5 for easy removal, thereby completing the replacement.
[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A civil air defense door with a disassembly structure, comprising a door frame (1), a civil air defense door (2) is hingedly connected inside the door frame (1), and a threshold (3) is arranged on the door frame (1), characterized in that: The door frame (1) is internally threadedly connected with a fastening bolt (4); a mounting groove (5) is provided inside the door frame (1); a groove (6) is provided on the side of the mounting groove (5); a mounting mechanism (7) is provided inside the groove (6) and on the threshold (3); a guide mechanism (8) is provided inside the door frame (1) and on the threshold (3); the mounting mechanism (7) comprises: A rotating rod (71), wherein the rotating rod (71) is rotatably connected to the inner wall of the groove (6); a torsion spring (72), one end of the torsion spring (72) being fixedly connected to the outer wall of the rotating rod (71), and the other end of the torsion spring (72) being elastically connected to the inner wall of the groove (6); A card slot (74) is provided on the side wall of the threshold (3).
2. The civil air defense door with a disassembly structure according to claim 1, characterized in that: An arc-shaped rod (73) is fixedly inserted into the rotating rod (71), one end of the arc-shaped rod (73) is located inside the mounting groove (5), and the other end of the arc-shaped rod (73) is located inside the groove (6).
3. The civil air defense door with a disassembly structure according to claim 1, characterized in that: The guide mechanism (8) comprises a guide rod (81), and the guide rod (81) is fixedly mounted on the outer wall of the door sill (3).
4. The civil air defense door with a disassembly structure according to claim 3, characterized in that: A baffle (82) is fixedly mounted on the outer wall of the threshold (3), and the baffle (82) is located directly above the guide rod (81).
5. The civil air defense door with a disassembly structure according to claim 4, characterized in that: A guide groove (83) adapted to the guide rod (81) is provided inside the door frame (1), and a bearing spring (84) is fixedly mounted on the inner wall of the guide groove (83).
6. The civil air defense door with a disassembly structure according to claim 5, characterized in that: A guide block (85) is fixedly mounted on the end of the bearing spring (84), and the guide block (85) is slidably connected to the inner wall of the guide groove (83).