Hinge structure and civil air defense door

Abstract

The utility model relates to the field of civil air defense doors, and discloses a hinge structure which comprises a mounting block, two connecting blocks are fixed to the front face of the mounting block, a rotating rod is rotatably connected to the interiors of the two connecting blocks, and two fixing blocks are in threaded connection to the outer surface of the rotating rod; the outer surface of the rotating rod is rotationally connected with a connecting assembly, and the connecting assembly is used for improving the rotating stability. According to the hinge structure and the civil air defense door, the hinge door is driven to be opened and closed through the arranged connecting assembly, abrasion between the rotating rod and the connecting assembly can be effectively reduced through the arranged rolling wheels, lubricating oil can be conveniently adjusted to the connecting position of the connecting assembly and the rotating rod through the arranged oil inlet hole and the arranged oil guide groove, and the practicability is high. Therefore, the overall durability can be further improved, the overall operation stability is guaranteed, the overall structure is simple, and the overall practicability is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense doors, in particular to a hinge structure and a civil air defense door. Background Technique

[0002] A civil air defense door is the door at the entrance of a people's 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 airtight doors and airtight doors, and single and double leaf airtight doors with movable thresholds. Civil air defense is also known as civil defense. Civil defense is a globally recognized term. It is the government's mobilization and organization of the masses to take measures such as air raid prevention and disaster relief and rescue operations to prevent and mitigate disaster hazards. Civil air defense doors belong to civil air defense protection equipment.

[0003] For example, the Chinese utility model patent with the publication number CN210685782U relates to the technical field of civil air defense doors and discloses a civil air defense door with good sealing performance. It includes a door frame and a door panel rotatably connected to the door frame through a hinge. A cavity is formed in the door panel. A fixing plate is fixedly connected in the cavity of the door panel. A through hole is fixedly opened in the middle of the fixing plate. A rotating shaft is rotatably connected to the through hole through a ball bearing. One end of the rotating shaft away from the ball bearing penetrates the side wall of the door panel and is fixedly connected with a turntable. A wire winding device is fixedly sleeved on the shaft wall of the rotating shaft. Four nylon ropes are fixedly connected to the side wall of the wire winding device. Grooves are formed in the four side walls of the fixing plate. Through the rotation of the turntable to drive the clamping connection between the door panel and the door frame and the sealing of the sealing plate and the sealing strip, the sealing effect of the civil air defense door can be improved, the sealing performance of the whole device can be enhanced, and at the same time, the clamping efficiency between the door panel and the door frame can be improved. The structure is simple and easy to operate, which is convenient for people to use and meets people's needs.

[0004] However, there are still some problems. Although the sealing effect of the civil air defense door can be improved and the sealing performance of the whole device can be enhanced, and the structure is simple and easy to operate, when connected by a hinge, after long-term use of the pin shaft, the pin shaft and the hinge support are prone to excessive wear, resulting in the pin shaft being unable to rotate continuously and stably, and thus the protection door cannot be opened or closed. Therefore, a hinge structure and a civil air defense door are proposed to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a hinge structure and a civil air defense door, which have the advantage of high stability and solve the problem that the protection door cannot be opened or closed due to the wear of the hinge after long-term use of the protection door.

[0006] To achieve the above object, the present utility model provides the following technical solution: A hinge structure, including a mounting block, on the front of the mounting block are fixed two connecting blocks, inside the two connecting blocks is rotatably connected a rotating rod, on the outer surface of the rotating rod are threadedly connected two fixing blocks, and on the outer surface of the rotating rod is rotatably connected a connecting component for improving the stability of rotation;

[0007] The connecting component includes a connecting plate, two opening and closing blocks, sliding blocks and four rollers. The outer surface of the rotating rod is rotatably connected to the opening and closing blocks, the inner part of the rotating rod is slidably connected to the sliding blocks fixed to the opening and closing blocks, the inner part of the sliding blocks is rotatably connected to the rollers penetrating to the bottom of the sliding blocks, and the right side of the opening and closing blocks is fixed to the connecting plate.

[0008] By adopting this technical solution, the rollers provided can effectively reduce the friction when the sliding blocks rotate on the outer surface of the rotating rod, and the convenience of adding lubricating oil can be effectively improved by the provided oil inlet holes and oil guide grooves, thus making the whole more durable.

[0009] Further, external thread blocks are fixed on both the upper and lower sides of the rotating rod, and threaded holes adapted to the external thread blocks are opened inside the fixing blocks.

[0010] By adopting this technical solution, through the provided external thread blocks, the two fixing blocks move in the same direction by rotating in the same direction, thus effectively avoiding the rotating rod from rotating to push the fixing blocks to move, so that the extrusion of the two fixing blocks on the connecting blocks is more stable.

[0011] Further, friction strips are fixed on the outer surfaces of the fixing blocks, and extrusion pads are fixed on both opposite sides of the two fixing blocks.

[0012] By adopting this technical solution, when the fixing blocks contact the connecting blocks, the extrusion pads will be extruded, causing the deformation of the extrusion pads, thereby increasing the friction between the connecting blocks and the fixing blocks, and making the whole more stable.

[0013] Further, a positioning block is fixed on the outer surface of the rotating rod, and a positioning groove slidably connected to the positioning block is opened inside the connecting block.

[0014] By adopting this technical solution, the rotating rod can be effectively positioned through the provided positioning block, so that the rotating rod is not easy to shake.

[0015] Further, a sliding groove adapted to the sliding block is opened inside the rotating rod, an oil inlet hole is opened at the top of the top external thread block, and two oil guide grooves communicated with the oil inlet hole are opened inside the rotating rod, and the two oil guide grooves are respectively communicated with the two sliding grooves.

[0016] By adopting this technical solution, lubricating oil is added into the oil inlet hole. Under the action of gravity and the oil guiding groove, the lubricating oil can flow into the inside of the sliding groove, thereby effectively reducing the friction between the sliding block and the sliding groove.

[0017] Furthermore, the sliding block, the extrusion pad and the positioning block are all hollow rings, and mounting holes are formed inside both the mounting block and the connecting plate.

[0018] A civil air defense door includes a door frame and a hinged door, and also includes a hinge structure. The door frame is fixed to the mounting block, the hinged door is fixed to the connecting plate, and a handle is fixed to the front of the hinged door.

[0019] By adopting this technical solution, through the provided handle, the hinged door can be conveniently pulled to open and close. The door frame and the mounting block, and the hinged door and the connecting plate are fixed by bolts.

[0020] Furthermore, a sponge pad is fixed to the outer surface of the handle, and a sealing pad is fixed to the back of the hinged door.

[0021] By adopting this technical solution, through the provided sealing pad, the sealing performance between the hinged door and the door frame can be effectively improved, and the sealing pad has a certain elasticity and can play a certain buffering role, thereby making the whole more stable.

[0022] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0023] 1. For this hinge structure and civil air defense door, the hinged door is driven to open and close by the provided connection component. Through the provided rollers, the wear between the rotating rod and the connection component can be effectively reduced. Through the provided oil inlet hole and oil guiding groove, lubricating oil can be conveniently adjusted to the connection part between the connection component and the rotating rod, thereby further improving the overall durability and ensuring the stability of the overall operation. The overall structure is simple, effectively improving the overall practicability.

[0024] 2. For this hinge structure and civil air defense door, when the connection component gets stuck in an emergency, the rotating block can be rotated to make the rotating rod lose its fixation with the connection block. At this time, the hinged door can be pulled, so that the rotating rod rotates inside the connection block, driving the hinged door to open and close, thereby effectively preventing the hinged door from being completely stuck, enabling the whole to maintain stable use, and thus making the whole more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the present utility model;

[0026] Figure 2Schematic diagram of the mounting block structure of the present utility model;

[0027] Figure 3 Schematic diagram of the connection component structure of the present utility model;

[0028] Figure 4 Three-dimensional view of the hinged door structure of the present utility model.

[0029] In the figure: 1, mounting block; 2, connecting block; 3, rotating rod; 4, positioning block; 5, fixing block; 6, connection component; 601, opening and closing block; 602, sliding block; 603, roller; 604, connecting plate; 7, oil inlet hole; 8, oil guiding groove; 9, door frame; 10, hinged door; 11, handle; 12, sealing gasket. Specific implementation mode

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Please refer to Figure 2 , in this embodiment, a hinge structure includes a mounting block 1. Two connecting blocks 2 are fixed on the front surface of the mounting block 1. A rotating rod 3 is rotatably connected inside the two connecting blocks 2. A positioning block 4 is fixed on the outer surface of the rotating rod 3. A positioning groove for sliding connection with the positioning block 4 is opened inside the connecting block 2. By providing the positioning block 4, the rotating rod 3 can be effectively positioned, so that the rotating rod 3 is not easily shaken. Two fixing blocks 5 are threadedly connected to the outer surface of the rotating rod 3. Outer threaded blocks are fixed on both the upper and lower sides of the rotating rod 3. Threaded holes adapted to the outer threaded blocks are opened inside the fixing blocks 5. By providing the outer threaded blocks, the two fixing blocks 5 rotate in the same direction and move in the same direction, effectively avoiding the rotating rod 3 rotating to push the fixing blocks 5 to move, so that the extrusion of the two fixing blocks 5 on the connecting block 2 is more stable.

[0032] In addition, friction strips are fixed on the outer surface of the fixing blocks 5, and extrusion pads are fixed on both opposite sides of the two fixing blocks 5. When the fixing blocks 5 are in contact with the connecting block 2, the extrusion pads will be extruded, causing the deformation of the extrusion pads, thereby increasing the friction between the connecting block 2 and the fixing blocks 5, making the whole more stable. A connection component 6 is rotatably connected to the outer surface of the rotating rod 3, and the connection component 6 is used to improve the stability of rotation.

[0033] Generally speaking, the set fixed block 5 can increase the friction between the connecting block 2 and the rotating rod 3, so that the connecting block 2 and the rotating rod 3 are integrated. When the connecting component 6 is stuck, the rotating rod 3 can rotate in the connecting block 2, preventing the hinged door 10 from being completely stuck.

[0034] Please refer to Figure 3 , in this embodiment, the connecting component 6 includes a connecting plate 604, two opening and closing blocks 601, sliding blocks 602, and four rollers 603. The outer surface of the rotating rod 3 is rotatably connected to the opening and closing block 601. The inside of the rotating rod 3 is slidably connected to the sliding block 602 fixed to the opening and closing block 601. A sliding groove adapted to the sliding block 602 is provided inside the rotating rod 3. An oil inlet hole 7 is provided at the top of the top external thread block. Two oil guide grooves 8 communicating with the oil inlet hole 7 are provided inside the rotating rod 3. The two oil guide grooves 8 are respectively communicated with the two sliding grooves. By adding lubricating oil into the oil inlet hole 7, under the action of gravity and the oil guide grooves 8, the lubricating oil can flow into the inside of the sliding groove, effectively reducing the friction between the sliding block 602 and the sliding groove. The inside of the sliding block 602 is rotatably connected to the roller 603 penetrating to the bottom of the sliding block 602. The right side of the opening and closing block 601 is fixed to the connecting plate 604.

[0035] In this embodiment, the sliding block 602, the extrusion pad, and the positioning block 4 are all hollow rings. Installation holes are provided inside both the mounting block 1 and the connecting plate 604.

[0036] Generally speaking, the set rollers 603 can effectively reduce the friction when the sliding block 602 rotates on the outer surface of the rotating rod 3, and the set oil inlet hole 7 and oil guide grooves 8 can effectively improve the convenience of adding lubricating oil, making the whole more durable.

[0037] Please refer to Figure 1 and 4 , a civil air defense door in this embodiment includes a door frame 9 and a hinged door 10, and also includes a hinge structure. The door frame 9 is fixed to the mounting block 1, the hinged door 10 is fixed to the connecting plate 604. A handle 11 is fixed to the front of the hinged door 10. By providing the handle 11, it is convenient to pull the hinged door 10 to open and close. The door frame 9 and the mounting block 1 and the hinged door 10 and the connecting plate 604 are fixed by bolts.

[0038] In addition, a sponge pad is fixed to the outer surface of the handle 11, and a sealing pad 12 is fixed to the back of the hinged door 10. By providing the sealing pad 12, the sealing performance between the hinged door 10 and the door frame 9 can be effectively improved, and the sealing pad 12 has a certain elasticity and can play a certain buffering role, making the whole more stable.

[0039] Generally speaking, the gasket 12 can effectively increase the gap between the hinged door 10 and the door frame 9, and can play a certain buffering role, making the whole more stable.

[0040] The working principle of the above embodiment is as follows:

[0041] When pulling the handle 11 to drive the hinged door 10 to move, the connecting plate 604 will drive the opening and closing block 601 and the sliding block 602 to revolve around the outer surface of the rotating rod 3, thus completing the opening and closing of the hinged door 10. The roller 603 can effectively reduce the friction when the sliding block 602 revolves around the outer surface of the rotating rod 3, thus effectively reducing the loss. When lubricating oil needs to be added, hold the rotating rod 3 and rotate the fixing block 5 at the top, then the fixing block 5 at the top can be separated from the rotating rod 3. At this time, lubricating oil can be added into the oil inlet hole 7. Under the influence of the oil guiding groove 8 and gravity, the lubricating oil will move to the connection between the sliding block 602 and the rotating rod 3, further reducing damage. When the connection component 6 gets stuck, by rotating the two fixing blocks 5, the fixing blocks 5 will move away from the connecting block 2 due to the extrusion of the thread, thus reducing the friction between the connecting block 2 and the rotating rod 3, and separating the connecting block 2 from the rotating rod 3. At this time, the hinged door 10 can be driven to open and close by rotating the rotating rod 3 inside the connecting block 2, effectively preventing the hinged door 10 from being completely stuck. The overall structure is simple, effectively improving the stability of the overall use, making the whole more practical.

Claims

1. A hinge structure, comprising a mounting block (1), characterized in that: Two connecting blocks (2) are fixed on the front side of the mounting block (1); the two connecting blocks (2) are rotatably connected to rotating rods (3) inside; the outer surfaces of the rotating rods (3) are threadedly connected to two fixing blocks (5); the outer surfaces of the rotating rods (3) are rotatably connected to connecting components (6); the connecting components (6) are used to improve the stability of rotation; The connection assembly (6) comprises a connection plate (604), two opening and closing blocks (601), a sliding block (602) and four rollers (603); the outer surface of the rotating rod (3) is rotationally connected to the opening and closing block (601); the interior of the rotating rod (3) is slidingly connected to the sliding block (602) fixed to the opening and closing block (601); the interior of the sliding block (602) is rotationally connected to the roller (603) extending through the bottom of the sliding block (602); and the right side of the opening and closing block (601) is fixed to the connection plate (604).

2. A hinge structure according to claim 1, characterized in that: External thread blocks are fixed to both the upper and lower sides of the rotating rod (3), and threaded holes matching the external thread blocks are provided inside the fixing block (5).

3. A hinge structure according to claim 1, characterized in that: A friction strip is fixed to the outer surface of the fixing block (5), and a compression pad is fixed to the opposite side of the two fixing blocks (5).

4. A hinge structure according to claim 1, characterized in that: A positioning block (4) is fixed to the outer surface of the rotating rod (3), and a positioning groove slidably connected to the positioning block (4) is provided inside the connecting block (2).

5. A hinge structure according to claim 2, characterized in that: The rotating rod (3) has a sliding groove adapted to the sliding block (602) formed inside, an oil inlet hole (7) formed at the top of the external threaded block, and two oil guide grooves (8) connected to the oil inlet hole (7) formed inside the rotating rod (3), the two oil guide grooves (8) being connected to the two sliding grooves respectively.

6. A hinge structure according to claim 4, characterized in that: The sliding block (602), the pressing pad and the positioning block (4) are all hollow ring-shaped, and mounting holes are provided inside the mounting block (1) and the connecting plate (604).

7. A civil air defense door, comprising a door frame (9) and a hinged door (10), characterized in that: It also comprises a hinge structure as claimed in any one of claims 1 to 6, wherein the door frame (9) is fixed to the mounting block (1), the hinged door (10) is fixed to the connecting plate (604), and a handle (11) is fixed to the front of the hinged door (10).

8. The civil air defense door according to claim 7, characterized in that: A sponge pad is fixed to the outer surface of the handle (11), and a sealing pad (12) is fixed to the back surface of the hinged door (10).

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