Civil air defense door hinged support installing and positioning clamp

Abstract

The utility model relates to the technical field of civil air defense, and discloses a civil air defense door hinged support installing and positioning clamp which comprises a positioning table and welding equipment, the left side and the right side of the bottom of the positioning table are both fixedly connected with first fixing plates, and a two-way screw is rotationally connected between every two adjacent first fixing plates; the right end of the two-way screw penetrates through the left side of the first fixing plate and is fixedly connected with a rotating disc, sliding grooves are formed in the left side and the right side of the top of the positioning table, reinforcing plates are slidably connected into the two sliding grooves, and the bottoms of the two reinforcing plates are in threaded connection to the outer wall of the two-way screw. And the top of the reinforcing plate is fixedly connected with a limiting frame, and the outer wall of the limiting frame is slidably connected with an extrusion plate. According to the device, the reinforcing plate is driven by rotating the rotary disc to position the inner wall of the door frame, the extrusion plate is driven by rotating the first reinforcing bolt to reinforce the top of the door frame, and the situation that the door frame deviates due to vibration is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense, in particular to a civil air defense door hinge installation and positioning fixture. Background Art

[0002] Civil air defense doors are one of the basic components in the field of civil air defense. They are used to form a safe space isolated from the outside world. Civil air defense doors utilize hinges and hinges to achieve efficient opening and closing of the safe space. This not only ensures the stability and durability of the door body, but also makes the operation process simple and quick, providing strong support for rapid evacuation and closure in emergency situations.

[0003] After searching, the Chinese patent announcement number is: CN213646456U, which discloses a civil air defense door hinge installation and positioning fixture, including a bearing plate, a driving device, a rotating device, a limiting device and a clamping device. One end of the fixed plate is connected to the lower surface of the top plate, and the driven gear rotates with the threaded rod. The upper surfaces of the two fixed blocks are connected to the lower surface of the top plate. One end of the two connecting rods is connected to the upper surface of the slide rail. One end of the limiting rod is connected to the side surface of the slide rail. The side surfaces of the two infrared emitters are respectively connected to the two ends of the slide rail. This utility model is a civil air defense door hinge installation and positioning fixture. When installing the hinge, the clamp clamps the hinge sleeve with the hinge for installation. First, the drive motor is started to rotate the driving gear, which drives the driven gear to rotate, thereby rotating the threaded rod. The threaded ring rotates with the threaded rod, causing the clamping device to slide along the track. When the infrared emitter is positioned, the drive motor stops working. At this time, the positioning is accurate and installation and welding can be carried out. Most of the existing hinge installation and positioning fixtures achieve the positioning of the door frame by clamping the door frame inward. However, clamping on both sides not only easily causes excessive pressure on the door frame, causing the door frame to deform, but also easily causes shaking during the welding positioning process, resulting in hinge misalignment. Therefore, a civil air defense door hinge installation and positioning fixture is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a civil defense door hinge installation and positioning fixture, which aims to improve the problem in the existing technology that clamping on both sides not only easily causes excessive pressure on the door frame and deformation of the door frame, but also easily causes shaking during welding, resulting in misalignment of the hinge.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a civil defense door hinge installation and positioning fixture, including a positioning platform and a welding device, the left and right sides of the bottom of the positioning platform are fixedly connected to a fixing plate 1, the two adjacent fixing plates 1 are rotatably connected with a bidirectional screw, the right end of the bidirectional screw passes through the left side of the fixing plate 1 and is fixedly connected to a turntable, the left and right sides of the top of the positioning platform are provided with a slide groove, the interior of the two slide grooves are slidably connected to a reinforcement plate, the bottoms of the two reinforcement plates are threadedly connected to the outer wall of the bidirectional screw, The top of the fixing plate is fixedly connected to the limiting frame, the outer wall of the limiting frame is slidably connected to the extrusion plate, the top of the limiting frame is rotatably connected to the reinforcing bolt 1, the internal thread of the extrusion plate is connected to the outer wall of the reinforcing bolt 1, the top front side of the positioning platform is fixedly connected to the mounting plate 2, the front side of the mounting plate 2 is fixedly connected to the electric push rod, one end of the electric push rod passes through the front side of the mounting plate 2 and is fixedly connected to the positioning plate 1, the top of the positioning plate 1 is provided with a placement slot, the top of the positioning platform is provided with an adjustment component, and the top of the positioning platform is provided with a protective mechanism.

[0006] Through the above technical solution: by rotating the bidirectional screw, the reinforcement plate is driven to expand synchronously to both sides, so that the reinforcement plate is tightly attached to the inner wall of the door frame, and at the same time, the reinforcement bolt is rotated to drive the extrusion plate on the outer wall of the fixing frame to slide downward, thereby fixing the top and inner wall of the door frame in all directions, improving the positioning welding of the door frame and the hinge seat.

[0007] As a further description of the above technical solution:

[0008] The protective mechanism includes a fixing frame, the bottom of the fixing frame is fixedly connected to the top of the positioning platform, the inner top of the fixing frame is fixedly connected to a mounting plate 1, the left and right sides of the mounting plate 1 are fixedly connected to a cylinder, one end of the two cylinders passes through the left and right sides of the mounting plate 1 and is fixedly connected to a connecting member 1, the bottoms of the two connecting members 1 are rotatably connected to a rotating plate, the middle parts of the two rotating plates are rotatably connected through a rotating shaft, the bottoms of the two rotating plates are rotatably connected to a connecting member 2, the bottoms of the two connecting members 2 are slidably connected to a protective window, and limiting grooves are provided on the left and right sides of the interior of the fixing frame, and the left and right sides of the protective window are slidably connected to the inside of the limiting groove.

[0009] Through the above technical solution: by starting the cylinder to drive the connecting part 1 to slide inward synchronously, and at the same time drive the rotating plates to rotate and squeeze each other, so that the connecting part 2 drives the protective window to slide downward, and the welding area is shielded by the protective window. This not only ensures accurate penetration during the welding process, but also protects the eyes of the workers.

[0010] As a further description of the above technical solution:

[0011] The adjustment assembly includes a second fixing plate, the bottom of which is fixedly connected to the top rear side of the positioning platform, the rear side of the second fixing plate is threadedly connected to a second reinforcing bolt, the front end of the second reinforcing bolt passes through the rear side of the second fixing plate and is rotatably connected to the second positioning plate.

[0012] Through the above technical solution: by rotating the second reinforcing bolt, the second positioning plate is driven to slide back and forth, thereby cooperating with the first positioning plate to position the door frame.

[0013] As a further description of the above technical solution:

[0014] The protection mechanism further comprises a front plate, the top of the front plate is fixedly connected to the inner top of the fixing frame, and an indicator light is fixedly connected to the front side of the front plate.

[0015] Through the above technical solution: the front plate can not only cover the protective window, but also have the effect of hiding the protective window.

[0016] As a further description of the above technical solution:

[0017] The bottom of the positioning platform is fixedly connected with a support frame, and the interior of the support frame is fixedly connected with a placement frame.

[0018] Through the above technical solution, the support frame is a solid structure capable of bearing the entire weight of the positioning platform and various dynamic loads that may be encountered during use.

[0019] As a further description of the above technical solution:

[0020] The four corners of the bottom of the placement rack are all fixedly connected with support columns, and the bottom ends of the plurality of support columns are all fixedly connected with rubber pads.

[0021] Through the above technical solution: the bottom of the support column contacts the ground through the rubber pad, avoiding wear and noise caused by long-term placement, thereby extending the service life of the placement rack.

[0022] As a further description of the above technical solution:

[0023] The top front side of the positioning platform is fixedly connected with a controller, and the bottom of the extrusion plate is fixedly connected with a plurality of rubber strips.

[0024] Through the above technical solution: the operating equipment on the entire device can be easily and simply controlled through the controller.

[0025] As a further description of the above technical solution:

[0026] The bottom of the positioning platform is fixedly connected to a slideway, the front side of the slideway is slidably connected to a storage box, the front side of the storage box is rotatably connected to a handle, and the outer wall of the handle is fixedly connected to an anti-slip sleeve.

[0027] Through the above technical solution: the storage box can increase the storage space and facilitate the storage and placement of maintenance tools.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the present invention, the turntable is rotated to drive the reinforcement plate to position the inner wall of the door frame, and the electric push rod is started to drive the positioning plate to slide backward to achieve positioning and clamping of the front and rear sides of the door frame. At the same time, the hinge seat is placed into the placement groove so that the hinge seat is accurately fitted with the top of the door frame. After the reinforcement plate positions the inner wall of the door frame, the top of the door frame is reinforced by driving the extrusion plate by rotating the reinforcement bolt. This not only can quickly complete the positioning of the door frame, but also avoid the deviation of the door frame caused by vibration.

[0030] 2. In the present invention, the cylinder is started to drive the connecting member 1 to slide inward, and the connecting member 1 and the connecting member 2 are connected by a rotating plate. At the same time, the rotating plates cross each other, thereby driving the protective window to slide downward, so that the protective window blocks the welding area. This not only avoids welding sparks from flying, but also protects the eyes of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional diagram of a civil air defense door hinge installation and positioning fixture proposed by the present invention;

[0032] Figure 2 This is a front view of a civil air defense door hinge installation and positioning fixture proposed by the present invention;

[0033] Figure 3 This is a top view of a civil air defense door hinge installation and positioning fixture proposed by the utility model;

[0034] Figure 4 This is a partial structural diagram of a civil air defense door hinge installation and positioning fixture proposed by the present invention;

[0035] Figure 5 This is a structural schematic diagram of a protective mechanism for a civil air defense door hinge installation and positioning fixture proposed by the present invention.

[0036] Legend:

[0037] 1. Positioning table; 2. Protective mechanism; 201. Fixing frame; 202. Mounting plate 1; 203. Cylinder; 204. Connector 1; 205. Turntable; 206. Rotating shaft; 207. Connector 2; 208. Protective window; 209. Front plate; 210. Indicator light; 211. Limiting slot; 3. Fixing plate 1; 4. Bidirectional screw; 5. Turntable; 6. Slide; 7. Reinforcement plate; 8. Limiting frame; 9. Extrusion Plate; 10. Reinforcement bolt 1; 11. Rubber strip; 12. Mounting plate 2; 13. Electric push rod; 14. Positioning plate 1; 15. Placement slot; 16. Fixing plate 2; 17. Reinforcement bolt 2; 18. Positioning plate 2; 19. Welding equipment; 20. Support frame; 21. Placement frame; 22. Support column; 23. Rubber pad; 24. Controller; 25. Slide; 26. Storage box; 27. Handle; 28. Anti-slip cover. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Reference Figure 2 、 Figure 3 and Figure 4The utility model provides an embodiment: a civil defense door hinge installation and positioning fixture, including a positioning platform 1 and a welding device 19, the left and right sides of the bottom of the positioning platform 1 are fixedly connected with a fixing plate 3, and the two adjacent fixing plates 3 are rotatably connected with a bidirectional screw 4, the right end of the bidirectional screw 4 passes through the left side of the fixing plate 3 and is fixedly connected with a turntable 5, and the left and right sides of the top of the positioning platform 1 are provided with a slide groove 6, and the inside of the two slide grooves 6 are slidably connected with a reinforcement plate 7, and the bidirectional screw 4 is supported and fixed by the fixing plate 3, so as to ensure the stability of the bidirectional screw 4 when rotating, thereby driving the slide groove 6 by rotating the turntable 5. The reinforcing plates 7 at the bottom slide left and right synchronously, thereby realizing the positioning processing of the inner wall of the door frame, and the welding equipment 19 can realize the welding processing between the door frame and the hinge seat; the bottoms of the two reinforcing plates 7 are threadedly connected to the outer wall of the bidirectional screw 4, and the tops of the reinforcing plates 7 are fixedly connected to the limiting frame 8, and the outer wall of the limiting frame 8 is slidably connected with the extrusion plate 9, and the top of the limiting frame 8 is rotatably connected with a reinforcing bolt 10. The internal thread of the extrusion plate 9 is connected to the outer wall of the reinforcing bolt 10. When the reinforcing plate 7 is positioned to the inner wall of the door frame, the extrusion plate 9 on the outer wall of the limiting frame 8 is driven to slide downward by rotating the reinforcing bolt 10, so that the extrusion plate 9 is aligned with the door frame. The top of the frame is reinforced, which not only allows for quick positioning of the door frame but also prevents the door frame from shifting due to vibration; the top front side of the positioning platform 1 is fixedly connected to a mounting plate 2 12, the front side of the mounting plate 2 12 is fixedly connected to an electric push rod 13, one end of the electric push rod 13 passes through the front side of the mounting plate 2 12 and is fixedly connected to a positioning plate 14, the top of the positioning plate 14 is provided with a placement slot 15, and by starting the electric push rod 13, the positioning plate 14 is driven to slide backward to achieve positioning and clamping of the front and rear sides of the door frame, and at the same time, the hinge seat is placed into the placement slot 15, so that the hinge seat is accurately aligned with the top of the door frame. row fitting; an adjustment component is provided on the top of the positioning platform 1, and a protective mechanism 2 is provided on the top of the positioning platform 1. The adjustment component includes a fixing plate 16, the bottom of the fixing plate 16 is fixedly connected to the rear side of the top of the positioning platform 1, and the rear side of the fixing plate 16 is threadedly connected to a reinforcing bolt 17. The front end of the reinforcing bolt 17 passes through the rear side of the fixing plate 16 and is rotatably connected to the positioning plate 18. The bottom of the extrusion plate 9 is fixedly connected with a plurality of rubber strips 11, and the bottom of the extrusion plate 9 is fixedly installed with a plurality of rubber strips 11. The rubber strips 11 can prevent the extrusion plate 9 from directly contacting the outer wall of the door frame, thereby protecting the outer wall of the door frame and avoiding wear;

[0040] The two fixing plates 3 are connected to each other with a double-ended screw rod 4, and the two fixing plates 3 are connected to each other with a double-ended screw rod 4. The right end of the double-ended screw rod 4 passes through the left side of the fixing plate 3 and is fixedly connected to a turntable 5. This design allows the operator to easily control the rotation of the double-ended screw rod 4 by rotating the turntable 5. When the double-ended screw rod 4 starts to rotate, the threads at both ends of the double-ended screw rod 4 will simultaneously drive the two reinforcement plates 7 to slide left and right in the slide groove 6. The two reinforcement plates 7 not only have high strength, but are also tightly connected to the double-ended screw rod 4 through precise threaded connection, ensuring the synchronization and stability of the sliding. This design makes the positioning of the inner wall of the door frame fast and accurate, effectively solving the problems of difficult and time-consuming positioning in traditional installation methods. In order to further improve the stability of the positioning, the top of the reinforcement plate 7 is fixed to the left and right sides of the door frame. It is also fixedly connected to a limiting frame 8, and the outer wall of the limiting frame 8 is slidably connected to an extrusion plate 9. By rotating a reinforcing bolt 10, the extrusion plate 9 can be driven to slide downward and fit closely to the top of the door frame to achieve further reinforcement. This design not only ensures the stability of the door frame during installation, but also avoids the offset phenomenon caused by vibration and the like; it is particularly worth mentioning that a plurality of soft rubber strips 11 are fixedly installed at the bottom of the extrusion plate 9. These rubber strips 11 not only increase the friction between the extrusion plate 9 and the door frame, but also avoid wear and scratches that may be caused by direct contact, reflecting the designer's attention to detail and persistent pursuit of product quality. At the top front side of the positioning platform 1, a mounting plate 2 12 is also fixedly connected, on which an electric push rod 13 is installed. The model of the electric push rod 13 is Hydraulic Actuators; One end of the electric push rod 13 passes through the mounting plate 2 12 and is fixedly connected to the positioning plate 14 . The top of each positioning plate 14 is provided with a placement slot 15 . The design of these placement slots 15 allows the hinge seat to be accurately placed on the top of the door frame and fit tightly with the door frame. By activating the electric push rod 13 , the positioning plate 14 can be easily driven to slide backward, clamping and positioning the front and back sides of the door frame, further improving the accuracy and stability of the installation. By adjusting the rotation position of the reinforcement bolt 2 17 , the position and angle of the positioning plate 2 18 can be flexibly adjusted to accommodate door frames of different specifications and shapes. The protective mechanism 2 protects the door frame and clamp, preventing damage caused by accidental collisions or impacts during installation.

[0041] Reference Figure 1 、 Figure 2 and Figure 5The protective mechanism 2 includes a fixing frame 201, the bottom of the fixing frame 201 is fixedly connected to the top of the positioning platform 1, and the inner top of the fixing frame 201 is fixedly connected to a mounting plate 202. The left and right sides of the mounting plate 202 are fixedly connected to a cylinder 203, and the stability and firmness of the cylinder 203 during operation can be ensured by the mounting plate 202; one end of the two cylinders 203 passes through the left and right sides of the mounting plate 202 and is fixedly connected to a connecting piece 204, and the connecting piece 204 is limited by the mounting plate 202 so that the cylinder 203 drives the connecting piece 204 to slide inward, so that the connecting piece 204 is more accurate in the sliding process; the bottoms of the two connecting pieces 204 are rotatably connected to a rotating plate 205, and the middle parts of the two rotating plates 205 are rotatably connected by a rotating shaft 206. The rotating plates 205 cross each other and are connected by the rotating shaft 206. The bottom of each rotating plate 205 is rotatably connected to a connecting piece 207, and the bottoms of the two connecting pieces 207 are slidably connected to a protective window 208. In this way, when the rotating plates 205 cross each other inward, the connecting piece 207 and the connecting piece 204 slide synchronously, thereby driving the protective window 208 to slide downward, so that the protective window 208 blocks the welding area. This not only prevents welding sparks from flying, but also protects the eyes of the workers. Limiting grooves 211 are provided on the left and right sides of the interior of the fixing frame 201, and the left and right sides of the protective window 208 are slidably connected to the inside of the limiting grooves 211. The protective window 208 is installed in the limiting grooves 211 so that the protective window 208 can slide up and down stably. The protective mechanism 2 also includes a front plate 209, the top of the front plate 209 is fixedly connected to the inner top of the fixing frame 201, and the front side of the front plate 209 is fixedly connected to an indicator light 210;

[0042] Specifically, a mounting plate 202 is fixed to the top of the inner side of the fixing frame 201, and the left and right sides of the mounting plate 202 are respectively firmly connected to the cylinder 203. The firm connection of the mounting plate 202 ensures that it can maintain stable power output during operation, which not only improves the working accuracy of the cylinder 203 but also extends its service life. One end of the cylinder 203 passes through the left and right sides of the mounting plate 202 and is tightly connected to the connecting piece 204. The limiting treatment of the mounting plate 202 on the connecting piece 204 ensures that the cylinder 203 can slide inward accurately when driving the connecting piece 204. The bottom of the connecting piece 204 is tightly connected to the rotating plate 205 through a precise rotating connection. The middle parts of the two rotating plates 205 are rotatably connected together by the rotating shaft 206, forming a mutually crossed structure. 03 When the driving connector 204 slides, the rotating plate 205 will cross inward, and the bottom of the rotating plate 205 is connected to the connector 207, and the bottoms of these two connectors 207 are slidably connected to the protective window 208. When the rotating plates 205 cross each other inward, the connector 207 and the connector 204 will slide synchronously. As the protective window 208 slowly slides downward, it accurately blocks the welding area, which not only effectively avoids the splashing of welding sparks and injuring people, but also greatly protects the eyes of the workers from harm; in order to ensure the stable operation of the protective window 208, limiting grooves 211 are provided on the left and right sides of the interior of the fixing frame 201, and the left and right sides of the protective window 208 are slidably connected to the inside of the limiting grooves 211. This design not only limits the sliding trajectory of the protective window 208, but also ensures its stability during the up and down sliding process.

[0043] Reference Figure 1 and Figure 2 The bottom of the positioning platform 1 is fixedly connected to a support frame 20, and the interior of the support frame 20 is fixedly connected to a placement frame 21. The four corners of the bottom of the placement frame 21 are fixedly connected to support columns 22, and the bottom ends of multiple support columns 22 are fixedly connected to rubber pads 23. The top front side of the positioning platform 1 is fixedly connected to a controller 24, and the bottom of the positioning platform 1 is fixedly connected to a slide 25. The front side of the slide 25 is slidably connected to a storage box 26. The front side of the storage box 26 is rotatably connected to a handle 27, and the outer wall of the handle 27 is fixedly connected to an anti-slip sleeve 28;

[0044] Specifically, the support frame 20 is not only tightly fixed to the bottom of the positioning platform 1, but also has a placement rack 21 integrated therein for orderly storing related accessories or tools. The bottom of the placement rack 21 is reinforced by four support columns 22. These four support columns are respectively located at the four corners of the bottom of the placement rack to ensure the stability and load-bearing capacity of the placement rack. A rubber pad 23 is installed at the bottom of each support column 22. This design not only effectively reduces vibration and noise, but also protects the contact surface and extends the service life of the equipment. A controller 24 is designed on the top front side of the positioning platform 1, which is responsible for receiving instructions and controlling The various actions of the positioning platform are determined, and the installation position of the controller is convenient for operation, which improves work efficiency. The bottom of the positioning platform 1 is also equipped with a slide 25, which realizes the convenient access of the storage box 26. The storage box 26 can slide freely on the slide 25, which is convenient for users to take out or store items at any time. In order to further improve the convenience of use, the front side of the storage box 26 is also rotatably connected to the handle 27, and the user can easily move the storage box by rotating the handle. At the same time, the outer wall of the handle 27 is also equipped with an anti-slip sleeve 28, which effectively prevents accidents caused by hand slippage during use and ensures the safety of operation.

[0045] Working principle: First, place the door frame on the top of the positioning platform 1, and drive the reinforcement plate 7 inside the slide 6 to slide left and right synchronously by rotating the turntable 5, so as to realize the positioning of the inner wall of the door frame. By starting the electric push rod 13, the positioning plate 14 is driven to slide backward to realize the positioning and clamping of the front and back sides of the door frame. At the same time, the hinge seat is placed into the placement groove 15 so that the hinge seat is accurately fitted with the top of the door frame. After the reinforcement plate 7 positions the inner wall of the door frame, the extrusion plate 9 on the outer wall of the limit frame 8 is driven to slide downward by rotating the reinforcement bolt 10, so that the extrusion plate 9 reinforces the top of the door frame. Not only can the door frame be quickly positioned, but also the deviation of the door frame caused by vibration can be avoided; moreover, by starting the cylinder 203, the connector 1 204 is driven to slide inward, and the connector 1 204 and the connector 2 204 are connected by a rotating plate 205. At the same time, the rotating plates 205 cross each other and are connected by a rotating shaft 206. The connector 2 207 slides synchronously with the connector 2 204, thereby driving the protective window 208 to slide downward, so that the protective window 208 blocks the welding area, which not only avoids the splashing of welding sparks, but also protects the eyes of the staff.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A civil air defense door hinge installation and positioning fixture, comprising a positioning platform (1) and a welding device (19), characterized in that: The left and right sides of the bottom of the positioning platform (1) are fixedly connected to a fixed plate (3), and the two adjacent fixed plates (3) are rotatably connected to a bidirectional screw (4), the right end of the bidirectional screw (4) passes through the left side of the fixed plate (3) and is fixedly connected to a turntable (5), and the left and right sides of the top of the positioning platform (1) are provided with a slide groove (6), the inside of the two slide grooves (6) are slidably connected to a reinforcement plate (7), the bottoms of the two reinforcement plates (7) are threadedly connected to the outer wall of the bidirectional screw (4), the top of the reinforcement plate (7) is fixedly connected to a limiting frame (8), and the outer wall of the limiting frame (8) is slidably connected to an extrusion plate ( 9), the top of the limit frame (8) is rotatably connected to a reinforcing bolt (10), the internal thread of the extrusion plate (9) is connected to the outer wall of the reinforcing bolt (10), the top front side of the positioning platform (1) is fixedly connected to a mounting plate (12), the front side of the mounting plate (12) is fixedly connected to an electric push rod (13), one end of the electric push rod (13) passes through the front side of the mounting plate (12) and is fixedly connected to the positioning plate (14), the top of the positioning plate (14) is provided with a placement groove (15), the top of the positioning platform (1) is provided with an adjustment component, and the top of the positioning platform (1) is provided with a protective mechanism (2).

2. The civil air defense door hinge installation and positioning fixture according to claim 1, characterized in that: The protection mechanism (2) includes a fixing frame (201), the bottom of the fixing frame (201) is fixedly connected to the top of the positioning platform (1), the inner top of the fixing frame (201) is fixedly connected to a mounting plate 1 (202), the left and right sides of the mounting plate 1 (202) are fixedly connected to cylinders (203), one end of each of the two cylinders (203) passes through the left and right sides of the mounting plate 1 (202) and is fixedly connected to a connecting piece 1 (204), and the two connecting pieces 1 (204) are fixedly connected to each other. The bottoms are both rotatably connected to a rotating plate (205), the middle parts of the two rotating plates (205) are both rotatably connected via a rotating shaft (206), the bottoms of the two rotating plates (205) are both rotatably connected to a second connecting member (207), the bottoms of the two second connecting members (207) are both slidably connected to a protective window (208), and the left and right sides of the interior of the fixing frame (201) are both provided with limiting grooves (211), and the left and right sides of the protective window (208) are both slidably connected to the interior of the limiting groove (211).

3. The civil air defense door hinge installation and positioning fixture according to claim 1, characterized in that: The adjustment assembly includes a second fixing plate (16), the bottom of which is fixedly connected to the top rear side of the positioning platform (1), the rear side of the second fixing plate (16) is threadedly connected to a second reinforcing bolt (17), and the front end of the second reinforcing bolt (17) passes through the rear side of the second fixing plate (16) and is rotatably connected to the second positioning plate (18).

4. The civil air defense door hinge installation and positioning fixture according to claim 2, characterized in that: The protection mechanism (2) further comprises a front plate (209), the top of the front plate (209) being fixedly connected to the inner top of the fixing frame (201), and an indicator light (210) being fixedly connected to the front side of the front plate (209).

5. The civil air defense door hinge installation and positioning fixture according to claim 1, characterized in that: The bottom of the positioning platform (1) is fixedly connected to a support frame (20), and the interior of the support frame (20) is fixedly connected to a placement frame (21).

6. The civil air defense door hinge installation and positioning fixture according to claim 5, characterized in that: The four corners at the bottom of the placement rack (21) are all fixedly connected to support columns (22), and the bottom ends of the plurality of support columns (22) are all fixedly connected to rubber pads (23).

7. The civil air defense door hinge installation and positioning fixture according to claim 1, characterized in that: The top front side of the positioning platform (1) is fixedly connected to a controller (24), and the bottom of each of the extrusion plates (9) is fixedly connected to a plurality of rubber strips (11).

8. The civil air defense door hinge installation and positioning fixture according to claim 1, characterized in that: The bottom of the positioning platform (1) is fixedly connected to a slideway (25), the front side of the slideway (25) is slidably connected to a storage box (26), the front side of the storage box (26) is rotatably connected to a handle (27), and the outer wall of the handle (27) is fixedly connected to an anti-slip sleeve (28).

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