Flattening device for correcting civil defense door
By combining infrared detection and hydraulic drive, the problem of difficult protrusion detection during the straightening of air defense doors has been solved, enabling rapid straightening and efficient production, thus improving the quality and production efficiency of air defense doors.
Patent Information
- Application Number
- CN202520653783.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-08
AI Technical Summary
The existing flattening device for air defense doors has difficulty detecting and removing slight protrusions during the correction process, resulting in low correction efficiency and affecting the production efficiency of air defense doors.
The device uses an infrared transmitter and receiver in conjunction with a drive unit to automatically detect protrusions in the panels of the air-raid shelter door. It then uses a hydraulically driven stamping component for rapid correction. The device's stability and durability are enhanced by the addition of a wear-resistant layer and fasteners.
It enables rapid detection and correction of protrusions in the panels of air-raid shelter doors, improving production efficiency and quality, reducing reliance on manual inspection, and extending the service life of the device.
Smart Images

Figure CN223970648U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of civil defense door manufacturing technology, and in particular to a flattening device for straightening civil defense doors. Background Technology
[0002] Civil defense doors, also known as air defense doors, are entrances and exits of civil defense projects. They are classified as civil defense protection equipment and possess multiple functions, including waterproofing, explosion-proofing, and resistance to air pollution. Civil defense doors have a simple structure, typically consisting of a door frame and a door leaf. The door frame is made of integrally formed angle steel, while the door leaf is constructed of reinforced steel mesh and cast concrete. In addition, there are steel-type civil defense doors. During the production of civil defense doors, to ensure production quality, a flattening device is often used to press and straighten the door panels, thereby eliminating any protrusions.
[0003] The existing air defense door flattening device first places the air defense door panel on a platform and then uses a stamping component to flatten and correct the protrusions on the panel. However, during the correction process, some panels will have slight protrusions that are difficult to distinguish with the naked eye, resulting in low inspection efficiency and affecting the correction efficiency, which is not conducive to the production of air defense doors. Utility Model Content
[0004] The purpose of this application is to solve the problem in the above-mentioned background technology that when straightening the board material, some boards have slight protrusions that are difficult to distinguish with the naked eye, resulting in low detection efficiency and affecting the straightening efficiency, which is not conducive to the production of air-raid shelter doors. This application provides a flattening device for straightening air-raid shelter doors.
[0005] To achieve the above objectives, this application specifically adopts the following technical solution:
[0006] A flattening device for straightening air-raid shelter doors includes a workbench. A material platform is fixedly connected to the middle of the top of the workbench, and upright plates are fixedly connected to both ends of the top of the workbench. An electric slide rail is fixedly connected to the top of the upright plate, and a stamping part is fixedly connected to the lower end of the electric slide rail. Fixing parts are fixedly connected to both ends of the workbench, with the pressing end of the fixing part located above the material platform. A driving component is installed on the workbench. An infrared transmitter is installed on one side of the top of the workbench, and an infrared receiver is installed on the other side of the top of the workbench. The infrared transmitter and the infrared receiver correspond to each other, and the driving component is drivenly connected to the infrared transmitter and the infrared receiver.
[0007] By adopting the above technical solution, when flattening and correcting the panels of the air-raid shelter door, the internal components of the drive unit can be driven by the operation of the drive unit, which in turn drives the infrared transmitter and the infrared receiver, causing the infrared transmitter and the infrared receiver to move synchronously. The infrared transmitter emits infrared rays and the infrared receiver receives them, thereby quickly detecting the protruding parts on the air-raid shelter door panels. At the same time, it can detect protrusions that are difficult to distinguish with the naked eye, which can speed up the flattening and correction speed and improve the production efficiency and quality of air-raid shelter doors.
[0008] Furthermore, the stamped part includes a hydraulic cylinder fixedly connected to an electric slide rail, and a stamping head is fixedly connected to the bottom end of the hydraulic cylinder.
[0009] By adopting the above technical solution, the stamping head can be driven by the operation of the hydraulic cylinder, thereby stamping the protruding parts.
[0010] Furthermore, a wear-resistant layer is provided on the inner bottom of the material platform.
[0011] By adopting the above technical solution, the wear resistance of the material platform can be improved through the wear-resistant layer.
[0012] Furthermore, the top two sides of the worktable are provided with sliding grooves. The driving component includes a bidirectional threaded rod rotatably connected inside one side of the sliding groove. A servo motor is fixedly connected to one side of the bidirectional threaded rod, and a linkage component is threadedly installed on the bidirectional threaded rod. A guide rod is fixedly connected inside the sliding groove on the other side, and the linkage component is connected to the guide rod through the groove.
[0013] By adopting the above technical solution, the operation of the servo motor can drive the bidirectional threaded rod to rotate, thereby driving the linkage to move.
[0014] Furthermore, the linkage includes two drive blocks that are respectively threaded onto a bidirectional threaded rod and through a guide rod. The bottom of the two drive blocks is fixedly connected to a U-shaped plate, the top of one drive block is fixedly connected to an infrared transmitter, and the top of the other drive block is fixedly connected to an infrared receiver.
[0015] By adopting the above technical solution, when the bidirectional threaded rod rotates, it can drive the drive block, which in turn drives another drive block to move through the U-shaped plate, thereby driving the infrared transmitter and infrared receiver to move synchronously.
[0016] Furthermore, the fixing component includes a base symmetrically fixedly connected to one side of the top of the workbench, a pressure member rotatably connected to the base, and an electric push rod rotatably connected to one end of the pressure member.
[0017] By adopting the above technical solution, the electric push rod can drive the pressing component, thereby fixing the air defense door panel through the pressing component.
[0018] Furthermore, the pressing component includes a horizontal pressure plate rotatably connected to the base, an inclined pressure plate fixedly connected to one end of the horizontal pressure plate, and a fixing rod fixedly connected to the end of the inclined pressure plate away from the horizontal pressure plate.
[0019] By adopting the above technical solution, the door panel can be fixed by the fixing rod contacting the panel.
[0020] Furthermore, the outer side of the fixing rod is coated with an anti-slip layer.
[0021] By adopting the above technical solution, the anti-slip layer can improve the fixing strength of the fixing rod to the air defense door panel.
[0022] In summary, this application includes at least one of the following beneficial effects;
[0023] 1. In this application, when flattening and correcting the panels of a civil defense door, the internal components of the drive unit are driven by the operation of the drive unit, which in turn drives the infrared transmitter and the infrared receiver, causing them to move synchronously. The infrared transmitter emits infrared rays, which are received by the infrared receiver, thereby quickly detecting protrusions on the civil defense door panels. Protrusions that are difficult to distinguish with the naked eye are also detected, which can speed up the flattening and correction process and improve the production efficiency and quality of civil defense doors.
[0024] 2. In this application, when flattening and straightening the air defense door panel, the air defense door panel can be placed in the material platform, and the internal components of the fixing component can be driven by the operation of the fixing component, thereby quickly fixing the air defense door panel, thereby restricting and fixing the air defense door panel, preventing the air defense door panel from shifting during flattening and straightening, and improving the straightening efficiency. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this application;
[0026] Figure 2 This is a connection structure diagram of the electric slide rail and the stamped part in this application;
[0027] Figure 3 This is a connection structure diagram of the driving component in this application;
[0028] Figure 4 This is a structural schematic diagram of the fastener in this application.
[0029] Explanation of reference numerals in the attached figures:
[0030] 1. Workbench; 2. Vertical plate; 3. Electric slide rail; 4. Stamping part; 5. Material table; 6. Fixing part; 7. Driving part; 8. Infrared transmitter; 9. Infrared receiver; 11. Slide rail; 41. Hydraulic cylinder; 42. Stamping head; 61. Base; 62. Horizontal pressure plate; 63. Inclined pressure plate; 64. Fixing rod; 65. Electric push rod; 71. Bidirectional threaded rod; 72. Servo motor; 73. Driving block; 74. U-shaped plate; 75. Guide rod. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1 —4 provides further detailed description of this application.
[0032] This application discloses a flattening device for straightening civil defense doors.
[0033] Reference Figure 1 A flattening device for straightening air defense doors includes a workbench 1. A material platform 5 is fixedly connected to the middle of the top of the workbench 1, and upright plates 2 are fixedly connected to both ends of the top of the workbench 1. An electric slide rail 3 is fixedly connected to the top of the upright plate 2, and a stamping part 4 is fixedly connected to the lower end of the electric slide rail 3. Fixing parts 6 are fixedly connected to both ends of the workbench 1. The pressing end of the fixing part 6 is located above the material platform 5. A driving part 7 is installed on the workbench 1. An infrared transmitter 8 is installed on one side of the top of the workbench 1, and an infrared receiver 9 is installed on the other side of the top of the workbench 1. The infrared transmitter 8 and the infrared receiver 9 correspond to each other. The driving part 7 is drivenly connected to the infrared transmitter 8 and the infrared receiver 9. A wear-resistant layer is provided on the bottom inner side of the material platform 5.
[0034] When straightening the air-raid shelter door, the door panel can first be placed inside the material platform 5. Then, by operating the fixing component 6, the internal components of the fixing component 6 are driven, thereby resisting and restricting the panel placed inside the material platform 5, thus fixing the air-raid shelter door panel. After fixing, by operating the driving component 7, the internal components of the driving component 7 are driven, thereby driving the infrared transmitter 8 and infrared receiver 9 to move synchronously. The infrared transmitter 8 and infrared receiver 9 move along the length of the air-raid shelter door panel, emitting infrared rays through the infrared transmitter 8 and receiving infrared rays through the infrared receiver 9. When receiving infrared signals, if there are protrusions on the sheet metal, these protrusions will block the infrared light, preventing the infrared receiver 9 from receiving it. When the infrared receiver 9 does not receive infrared light, it will issue a warning to the hand terminal, thus facilitating the rapid detection and positioning of the protrusions on the sheet metal. Subsequently, the operation of the electric slide rail 3 can drive the stamping part 4 to move, thereby adjusting the stamping part 4 to be directly above the protrusion. During the operation of the stamping part 4, the protrusion of the sheet metal can be stamped to flatten and straighten it. Here, the inner bottom of the material table 5 is provided with a wear-resistant layer, which can improve the wear resistance of the material table 5 and extend the service life of the device.
[0035] Reference Figure 2 The stamping part 4 includes a hydraulic cylinder 41 fixedly connected to the electric slide rail 3, and a stamping head 42 is fixedly connected to the bottom end of the hydraulic cylinder 41.
[0036] Under the operation of the hydraulic cylinder 41, the punching head 42 can be driven, thereby moving the punching head 42 toward the protruding part of the plate, and punching the protruding part, thereby achieving the flattening and straightening of the air defense door plate.
[0037] Reference Figure 3 The workbench 1 has slide grooves 11 on both sides of its top. The drive component 7 includes a bidirectional threaded rod 71 rotatably connected inside one slide groove 11. A servo motor 72 is fixedly connected to one side of the bidirectional threaded rod 71. A linkage component is threaded onto the bidirectional threaded rod 71. A guide rod 75 is fixedly connected inside the slide groove 11 on the other side. The linkage component is connected through the guide rod 75. The linkage component includes two drive blocks 73 that are respectively threaded onto the bidirectional threaded rod 71 and connected through the guide rod 75. A U-shaped plate 74 is fixedly connected to the bottom of the two drive blocks 73. The top of one drive block 73 is fixedly connected to an infrared transmitter 8, and the top of the other drive block 73 is fixedly connected to an infrared receiver 9.
[0038] Under the operation of the servo motor 72, the bidirectional threaded rod 71 can be rotated. The rotating bidirectional threaded rod 71 can drive the drive block 73 on one side, so that the drive block 73 slides inside the slide groove 11. When sliding, the other drive block 73 can be moved through the U-shaped plate 74, so that the two drive blocks 73 move synchronously, thereby driving the infrared transmitter 8 and the infrared receiver 9 to move synchronously. The protrusions of the blast door panel can be detected by the moving infrared transmitter 8 and infrared receiver 9.
[0039] Reference Figure 4 The fixing component 6 includes a base 61 symmetrically fixedly connected to one side of the top of the workbench 1. A pressure component is rotatably connected to the base 61. An electric push rod 65 is rotatably connected to one end of the pressure component. The pressure component includes a horizontal pressure plate 62 rotatably connected to the base 61. An inclined pressure plate 63 is fixedly connected to one end of the horizontal pressure plate 62. A fixing rod 64 is fixedly connected to the end of the inclined pressure plate 63 away from the horizontal pressure plate 62. The outer side of the fixing rod 64 is coated with an anti-slip layer.
[0040] After the air-raid shelter door panel is placed in the material platform 5, the electric push rod 65 is operated to lift the horizontal pressure plate 62. The horizontal pressure plate 62 rotates around the rotation point of the base 61 under force, which in turn drives the inclined pressure plate 63 to move towards the panel in the material platform 5, and then drives the fixing rod 64 to move towards the panel. The fixing rod 64 can press and squeeze the panel to restrict and fix it, preventing the panel from shifting during flattening and straightening, and improving the straightening efficiency. Here, the anti-slip layer is made of rubber material, which has strong elasticity and friction, and can improve the fixing strength of the air-raid shelter door panel.
[0041] Working principle: When straightening the air-raid shelter door, the door panel is first placed inside the material platform 5. Then, the electric push rod 65 is operated to lift the horizontal pressure plate 62. The horizontal pressure plate 62 rotates around the base 61, thereby driving the inclined pressure plate 63 to move towards the panel inside the material platform 5. This, in turn, drives the fixing rod 64 to move towards the panel. The fixing rod 64 can press and restrain the panel, thus fixing it. After fixing, the servo motor 72 drives the bidirectional threaded rod 71 to rotate. The rotating bidirectional threaded rod 71 drives the driving block 73 on one side, causing the driving block 73 to slide inside the slide groove 11. During sliding, the U-shaped plate 74 can drive the other driving block 73 to move, so that the two driving blocks 73 move synchronously, thereby driving the infrared emitter 8 and... The infrared receiver 9 moves synchronously, causing the infrared transmitter 8 and the infrared receiver 9 to move along the length of the air-raid shelter door panel. The infrared transmitter 8 emits infrared rays, which are received by the infrared receiver 9. When there are protrusions on the panel, the protrusions will block the infrared rays, preventing the infrared receiver 9 from receiving them. When the infrared receiver 9 does not receive infrared rays, it will issue a warning to the hand terminal, thus facilitating the quick detection and positioning of the protrusions on the panel. Then, the operation of the electric slide rail 3 can drive the stamping part 4 to move, thereby adjusting the stamping part 4 to be directly above the protrusion. The operation of the stamping part 4 can press the protrusion of the panel to flatten and straighten it. Here, the inner bottom of the material platform 5 is provided with a wear-resistant layer, which can improve the wear resistance of the material platform 5 and extend the service life of the device.
Claims
1. A flattening device for human defense door correction, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected with a material table (5), and the top of the workbench (1) is fixedly connected with a vertical plate (2) at both ends, the top of the vertical plate (2) is fixedly connected with an electric slide rail (3), the lower end of the electric slide rail (3) is fixedly connected with a stamping part (4), both ends of the workbench (1) are fixedly connected with a fixing part (6), the pressing end of the fixing part (6) is above the material table (5), the workbench (1) is provided with a driving part (7), one side of the top of the workbench (1) is provided with an infrared emitter (8), and the other side of the top of the workbench (1) is provided with an infrared receiver (9), the infrared emitter (8) and the infrared receiver (9) correspond to each other, and the driving part (7) is drivingly connected with the infrared emitter (8) and the infrared receiver (9).
2. The flattening device for civil air defense door correction according to claim 1, characterized in that: The stamping part (4) comprises a hydraulic cylinder (41) fixedly connected to the electric slide rail (3), and the bottom end of the hydraulic cylinder (41) is fixedly connected with a stamping head (42).
3. The flattening device for civil air defense door correction according to claim 1, characterized in that: The inner bottom of the material table (5) is provided with a wear-resistant layer.
4. The flattening device for civil air defense door correction according to claim 1, characterized in that: Both sides of the top of the workbench (1) are provided with a sliding groove (11), the driving part (7) comprises a bidirectional threaded rod (71) rotatably connected in the sliding groove (11) on one side, one side of the bidirectional threaded rod (71) is fixedly connected with a servo motor (72), a linkage part is threadedly installed on the bidirectional threaded rod (71), and the other side of the sliding groove (11) is fixedly connected with a guide rod (75), and the linkage part and the guide rod (75) are connected in penetration.
5. The flattening device for civil air defense door correction according to claim 4, characterized in that: The linkage part comprises two driving blocks (73) which are threadedly connected to the bidirectional threaded rod (71) and connected in penetration to the guide rod (75) respectively, the bottoms of the two driving blocks (73) are fixedly connected with a U-shaped plate (74), the top of one driving block (73) is fixedly connected with the infrared emitter (8), and the top of the other driving block (73) is fixedly connected with the infrared receiver (9).
6. The flattening device for civil air defense door correction according to claim 1, characterized in that: The fixing part (6) comprises a base (61) fixedly connected to one side of the top of the workbench (1), a pressing part is rotatably connected to the base (61), and one end of the pressing part is rotatably connected with an electric push rod (65).
7. The flattening device for civil air defense door correction according to claim 6, characterized in that: The pressing part comprises a horizontal pressing plate (62) rotatably connected to the base (61), one end of the horizontal pressing plate (62) is fixedly connected with an inclined pressing plate (63), and the end, away from the horizontal pressing plate (62), of the inclined pressing plate (63) is fixedly connected with a fixed rod (64).
8. The flattening device for civil air defense door correction according to claim 7, characterized in that: The outer side of the fixed rod (64) is coated with an anti-skid layer.