Floating shaft hinge pneumatic air-tight door mechanism

Abstract

The utility model relates to the technical field of coal mine construction, in particular to a floating shaft hinge pneumatic air-tight door mechanism which comprises a door plate, a door frame, two floating shaft hinges, a locking bolt and a plurality of sealing locking bolts. When the door needs to be closed, the pneumatic control system drives the door plate to move, and in the door plate closing process, the floating shaft hinge can float up and down according to the bounce of the sealing piece to reduce the movement resistance of the door plate and ensure that the door plate can be smoothly closed; when the door plate reaches a closing position, the locking bolt is in a normally-extending state, the collision matching piece retracts when the door is closed, and after the door plate is in place, the door plate automatically rebounds and extends out under the action of spring force, so that the door plate is prevented from rebounding, further action of the sealing locking bolt is guaranteed, and the door plate is finally closed and sealed. The ultimate sealing of the door plate and the door frame is realized, the performance of the sealing door is greatly improved, and the spreading of flood, fire, harmful gas leakage and other disasters is better prevented.

Description

Technical Field

[0001] This utility model relates to the field of coal mine construction technology, and in particular to a floating shaft hinge pneumatic airtight door mechanism. Background Technology

[0002] In mine safety production, emergencies such as floods, fires, and toxic gas leaks pose serious threats to critical underground facilities. To effectively control the spread of disasters, heavy-duty sealed protective doors are typically installed at the intersection of equipment rooms and main roadways. These special doors can remain open or closed under normal circumstances, but need to be able to switch quickly in emergencies. Due to the large structural characteristics of mine doors, traditional manual operation suffers from drawbacks such as slow response and high physical exertion, and is difficult to perform emergency operations in extreme situations such as power outages.

[0003] In existing technologies, modern mines generally use pneumatically driven remote control systems, which ensure reliable power supply in emergency situations through air source stations and central control rooms set up on the ground or in safe areas. Conventional pneumatic systems are limited by the limited air pressure intensity, and whether they are rod-driven or other structural forms, their rotating shaft devices mostly adopt a fixed rotating shaft design.

[0004] However, in the aforementioned prior art, during the closing process, when the door body has not yet reached the fully closed position, the door panel on the drive shaft side will prematurely contact the sealing device, triggering the reaction force of the sealing material; at the same time, the high friction coefficient of the traditional bushing-type pivot further aggravates the motion resistance, making it difficult for pneumatic power to overcome the combined resistance to complete the full sealing action, thus making it difficult for the airtight door to truly achieve airtightness. Utility Model Content

[0005] The purpose of this invention is to provide a floating shaft hinge pneumatic sealing door mechanism, which solves the problem that in the prior art, when the door body has not yet reached the fully closed position during the closing process, the door panel on the drive shaft side will prematurely contact the sealing device, triggering the reaction force of the sealing material; at the same time, the high friction coefficient of the traditional bushing type pivot further aggravates the motion resistance, making it difficult for the pneumatic power to overcome the combined resistance to complete the full sealing action, thus making it difficult for the sealing door to truly achieve a tight seal.

[0006] To achieve the above objectives, this utility model provides a floating shaft hinge pneumatic airtight door mechanism, including a door panel, a door frame, two floating shaft hinges, a locking tongue, and multiple sealing tongues. The door panel is disposed on the door frame, one end of each of the two floating shaft hinges is disposed on the door frame, and the other end of each of the two floating shaft hinges is disposed on the door panel. The locking tongue is disposed on the door panel, and each sealing tongue is disposed on the door panel.

[0007] The floating hinge includes a hinge base, a hinge rotating body, a bearing, a hinge pivot, and a polyurethane elastomer. The hinge base is fixedly connected to the door frame. One end of the hinge rotating body is fixedly connected to the front end of the door panel, and the other end of the hinge rotating body is fixedly connected to the bearing. The bearing is mounted on the hinge pivot, which is rotatably connected to the hinge base and located inside the hinge base. The polyurethane elastomer is located at the upper end of the hinge pivot.

[0008] The floating shaft hinge further includes a base plate, a pressure plate, and multiple screw fasteners. The pressure plate is disposed on the upper end of the polyurethane elastomer, the base plate is fixedly connected to the lower end of the hinge rotating body, and the multiple screw fasteners pass through the base plate and are respectively disposed on the door panel.

[0009] The floating shaft hinge seat is an open-type elongated hole structure, and the hinge shaft is a round shaft milled flat structure.

[0010] The hinge rotator is located on the left side of the hinge seat, and the locking tongue and multiple sealing tongues are located at the front end of the door panel.

[0011] This utility model discloses a floating shaft hinge pneumatic sealing door mechanism. When the door needs to be closed, the pneumatic control system drives the door panel to move. During the closing process, the floating shaft hinge can float up and down according to the rebound force of the sealing element, reducing the movement resistance of the door panel and ensuring that the door panel can close smoothly. When the door panel reaches the closed position, the locking tongue is in a normally extended state. When the door is closed, it retracts due to the collision mating part. After the door panel is in position, it automatically springs back under the action of spring force, preventing the door panel from rebounding and ensuring that the sealing tongue can move further to achieve the final closure and sealing of the door panel. Thus, the locking mechanism further compresses the sealing element, achieving the ultimate sealing between the door panel and the door frame, greatly improving the performance of the sealing door and better preventing the spread of disasters such as floods, fires, and leaks of harmful gases. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a top view of the entire utility model.

[0015] Figure 3 This is a front view of the floating shaft hinge of this utility model.

[0016] Figure 4 This is a cross-sectional view of the floating shaft hinge of this utility model.

[0017] Figure 5 This is a top view of the floating shaft hinge of this utility model.

[0018] 1-Door panel, 2-Door frame, 3-Floating hinge, 4-Locking tongue, 5-Sealing tongue, 6-Hinge seat, 7-Hinge rotating body, 8-Bearing, 9-Hinge pivot, 10-Polyurethane elastomer, 11-Base plate, 12-Pressure plate, 13-Screw fastener. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Please see Figures 1 to 5 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a top view of the entire utility model. Figure 3 This is a front view of the floating shaft hinge 3 of this utility model. Figure 4 This is a cross-sectional view of the floating shaft hinge 3 of this utility model. Figure 5 This is a top view of the floating shaft hinge 3 of this utility model.

[0021] This utility model provides a pneumatic airtight door mechanism with floating shaft hinges 3, including a door panel 1, a door frame 2, two floating shaft hinges 3, a locking tongue 4, and multiple sealing tongues 5. The door panel 1 is disposed on the door frame 2, one end of the two floating shaft hinges 3 is disposed on the door frame 2, and the other end of the two floating shaft hinges 3 is disposed on the door panel 1. The locking tongues 4 are disposed on the door panel 1, and each sealing tongue 5 is disposed on the door panel 1.

[0022] In this embodiment, when the door needs to be closed, the pneumatic control system drives the door panel 1 to move. During the closing process of the door panel 1, the floating shaft hinge 3 can float up and down according to the rebound force of the seal, reducing the movement resistance of the door panel 1 and ensuring that the door panel 1 can be closed smoothly. When the door panel 1 reaches the closed position, the locking tongue 4 is in the normally extended state. When the door is closed, it retracts due to the collision mating part. After the door panel 1 is in place, it automatically springs back under the action of the spring force, preventing the door panel 1 from rebounding. This ensures that the sealing tongue 5 can move further, realizing the final closing and sealing of the door panel 1. Thus, the door locking mechanism further compresses the seal, realizing the ultimate sealing between the door panel 1 and the door frame 2, greatly improving the performance of the airtight door and better preventing the spread of disasters such as floods, fires, and leaks of harmful gases.

[0023] Further, the floating shaft hinge 3 includes a hinge base 6, a hinge rotating body 7, a bearing 8, a hinge pivot 9, and a polyurethane elastomer 10. The hinge base 6 is fixedly connected to the door frame 2. One end of the hinge rotating body 7 is fixedly connected to the front end of the door panel 1, and the other end of the hinge rotating body 7 is fixedly connected to the bearing 8. The bearing 8 is disposed on the hinge pivot 9. The hinge pivot 9 is rotatably connected to the hinge base 6 and is located inside the hinge base 6. The polyurethane elastomer 10 is disposed at the upper end of the hinge pivot 9. Chain 3 also includes a base plate 11, a pressure plate 12, and a plurality of screw fasteners 13. The pressure plate 12 is disposed at the upper end of the polyurethane elastomer 10. The base plate 11 is fixedly connected to the lower end of the hinge rotator 7. The plurality of screw fasteners 13 pass through the base plate 11 and are respectively disposed on the door panel 1. The floating shaft hinge 3 seat is an open-type elongated hole structure, and the hinge shaft 9 is a round shaft milled flat structure. The hinge rotator 7 is located on the left side of the hinge seat 6, and the locking tongue 4 and the plurality of sealing tongues 5 are respectively located at the front end of the door panel 1.

[0024] In this embodiment, the milled flat size of the hinge shaft 9 matches the narrow side of the elongated hole of the hinge seat 6, allowing it to slide up and down. The polyurethane elastomer 10 material is installed in the gap above the elongated hole. This material has good elasticity, good toughness, and high strength. When it is pressed by the hinge shaft 9, it can deform and give way, allowing the hinge shaft 9 to float. A fixed pressure plate 12 is installed on the outer side of the hinge shaft 9 and the polyurethane elastomer 10. The fixed pressure plate 12 provides positional support for the polyurethane elastomer 10 and limits the floating range of the hinge shaft 9, preventing the polyurethane elastomer 10 from being deformed and damaged due to excessive compression by the hinge shaft 9. This device enhances locking reliability: the locking tongue 4 and the sealing tongue 5 respectively lock and seal the door panel 1, avoiding the phenomenon that the door panel 1 cannot be effectively locked due to impact rebound when closed, enhancing the stability and reliability of the airtight door after closing, and ensuring that the airtight door can play its due role in the event of a disaster. It adapts to normal power conditions: the floating shaft hinge 3 reduces the closing resistance of the door panel 1, allowing the airtight door to be opened and closed smoothly under normal compressed air pressure and speed conditions, without relying on excessively high air pressure or hydraulic pressure, reducing the requirements for the power system, making the power source more convenient, and making maintenance simpler and more economical.

[0025] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A floating shaft hinge pneumatic sealing door mechanism, characterized in that, Includes door panel, door frame, two floating hinges, locking bolt, and multiple sealing bolts; The door panel is disposed on the door frame, one end of each of the two floating shaft hinges is disposed on the door frame, the other end of each of the two floating shaft hinges is disposed on the door panel, the locking tongue is disposed on the door panel, and each of the sealing tongues is disposed on the door panel.

2. The floating shaft hinge pneumatic sealing door mechanism as described in claim 1, characterized in that, The floating hinge includes a hinge base, a hinge rotating body, a bearing, a hinge pivot, and a polyurethane elastomer. The hinge base is fixedly connected to the door frame. One end of the hinge rotating body is fixedly connected to the front end of the door panel, and the other end of the hinge rotating body is fixedly connected to the bearing. The bearing is mounted on the hinge pivot, which is rotatably connected to the hinge base and located inside the hinge base. The polyurethane elastomer is located at the upper end of the hinge pivot.

3. The floating shaft hinge pneumatic sealing door mechanism as described in claim 2, characterized in that, The floating shaft hinge also includes a base plate, a pressure plate, and multiple screw fasteners. The pressure plate is disposed on the upper end of the polyurethane elastomer, the base plate is fixedly connected to the lower end of the hinge rotating body, and the multiple screw fasteners pass through the base plate and are respectively disposed on the door panel.

4. The floating shaft hinge pneumatic sealing door mechanism as described in claim 3, characterized in that, The floating shaft hinge seat has an open-type elongated hole structure, and the hinge shaft has a round shaft milled flat structure.

5. The floating shaft hinge pneumatic sealing door mechanism as described in claim 4, characterized in that, The hinge rotator is located on the left side of the hinge seat, and the locking tongue and multiple sealing tongues are located at the front end of the door panel.

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