Bridge airtight door

Abstract

The utility model relates to a bridge airtight door which comprises a door frame system, a door leaf system, a rotating system, a locking system and a sealing mechanism. The door leaf system comprises a door leaf panel, a lug plate, a rotating seat and a door leaf partition plate; the door frame system provides frame support for the door leaf system, the rotating system, the locking system and the sealing mechanism, the rotating system is fixed to the door frame system through a lug plate, and the locking system and the sealing mechanism are used in cooperation to achieve overall locking and sealing of the airtight door. The access door is ingenious in conception, fast and stable in operation, safe and reliable, has airtight, impact-resistant, windproof, dustproof and moistureproof functions, can simultaneously achieve double purposes of access door maintenance and windproof and moistureproof, prolongs the service life of a bridge, is convenient to operate and simple to use, and solves the problems that an access door of an existing bridge project is difficult to disassemble and assemble, labor intensity of operators is large, and maintenance cost is low. And compared with the prior art, the bridge protection device has a very good market prospect and a very good development space.

Description

Technical Field

[0001] The utility model relates to the field of airtight anti-corrosion for bridge engineering, and particularly to an airtight door for bridges. Background Art

[0002] An airtight door is a special door indispensable in many institutions, and the quality of its operation is directly related to the service life of the whole product. The airtight door for bridges is a construction equipment used for the maintenance and corrosion prevention of bridge engineering to extend the service life. At present, the inspection doors of existing bridge engineering mainly rely on traditional simple steel structures, which are relatively heavy, difficult to disassemble and assemble, with high labor intensity for operators, requiring a lot of manpower, and the whole process is high-altitude operation, posing great safety hazards. More importantly, the existing inspection doors can only be used as access channels for maintenance and cannot play roles such as wind prevention, dust prevention, moisture protection, and impact resistance. Over time, deformation will occur, and the bridge structure will be damaged by corrosion of humid gas.

[0003] Therefore, improving the installation process of the airtight door for bridges, making the operation of the airtight door fast, stable, safe and reliable, and wind and dust prevention have become problems that must be solved for the current bridge inspection doors. Summary of the Utility Model

[0004] In order to solve the technical problems that the inspection doors of existing bridge engineering mainly rely on traditional simple steel structures, which are relatively heavy, difficult to disassemble and assemble, with high labor intensity for operators, requiring a lot of manpower, and the whole process is high-altitude operation, posing great safety hazards, and the existing inspection doors can only be used as access channels for maintenance and cannot play roles such as wind prevention, dust prevention, moisture protection, and impact resistance. Over time, deformation will occur, and the bridge structure will be damaged by corrosion of humid gas, etc., the utility model provides an airtight door for bridges to achieve the purposes of ingenious conception, fast, stable, safe and reliable operation, having functions of airtightness, impact resistance, wind prevention, dust prevention and moisture protection, being able to achieve the dual goals of inspection access door and wind and moisture prevention simultaneously, thereby extending the service life of the bridge, being convenient to operate and simple to use.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: an airtight door for bridges, including a door frame system, a door leaf system, a rotation system, a locking system and a sealing mechanism; the door leaf system includes a door leaf panel, an ear plate, a rotation seat and a door leaf partition; the door frame system provides a frame support for the door leaf system, the rotation system, the locking system and the sealing mechanism, the rotation system is fixed on the door frame system through the ear plate, and the locking system and the sealing mechanism are used in cooperation to realize the overall locking and sealing of the airtight door.

[0006] As a further optimization solution for the above-mentioned bridge airtight door, the door frame system includes a door frame and a hinge bolt fixing bracket. The door frame is a rectangular frame structure, and the four corners of the door frame are rounded to form an arc structure that is convenient for sealing and fixing. The hinge bolt fixing bracket is fixedly arranged on the side of the door frame, and the ear plate is fixed on the hinge bolt fixing bracket through a rotating system.

[0007] As a further optimization solution for the above-mentioned bridge airtight door, the rotating system includes a fixing nut, a hinge bolt, a bushing, a flat washer, a bolted screw, and a first locking nut. The head of the hinge bolt is clamped in the middle of the ear plate, and a through hole is opened in the head of the hinge bolt. The bolted screw passes through the upper end of the ear plate, the through hole of the hinge bolt, and the lower end of the ear plate from top to bottom, and is locked by the first locking nut; the screw of the hinge bolt passes through the through hole on the hinge bolt fixing bracket, and the fixing nut is sleeved on the tail end of the hinge bolt screw to pin and fix the hinge bolt on the ear plate.

[0008] As a further optimization solution for the above-mentioned bridge airtight door, the locking system includes a door leaf body, a locking rotating shaft, a locking washer, an O-ring, an oil-free bushing, a locking rod, a rubber-wrapped locking rod, a locking rotating shaft bushing, a locking rotating shaft handle, a locking flat washer, a second locking nut, an opening handle, and a handle rubber. The door leaf body is arranged on the door leaf panel, and a through hole is opened on the door leaf body. The locking rotating shaft is arranged in the locking rotating shaft bushing, and the locking rotating shaft bushing is arranged in the through hole. The oil-free bushing is arranged adjacent to the locking rotating shaft and is sealed by the locking washer and the O-ring; a locking rotating shaft handle is arranged at the end of the locking rotating shaft bushing, and the top end of the locking rotating shaft handle is locked by the locking flat washer and the second locking nut; a locking rod is arranged on one side of the locking rotating shaft handle, and a rubber-wrapped locking rod is arranged outside the locking rod; an opening handle is arranged at the same-side end of the locking rotating shaft and the locking rotating shaft handle, and a handle rubber is laid on the opening handle; after the door leaf body is closed, the locking rod is pulled down for locking.

[0009] As a further optimization solution for the above-mentioned bridge airtight door, the sealing mechanism is located between the door frame system and the door leaf system. The sealing mechanism includes a sealing strip and a sealing ring. The sealing strip is processed by pressing technology to ensure the airtightness of the airtight door.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] First, the present utility model includes a door frame system, a door leaf system, a rotating system, a locking system, and a sealing mechanism; the door leaf system includes a door leaf panel, an ear plate, a rotating seat, and a door leaf partition; the door frame system provides a frame support for the door leaf system, the rotating system, the locking system, and the sealing mechanism. The rotating system is fixed on the door frame system through the ear plate, and the locking system and the sealing mechanism are used in cooperation to achieve the overall locking and sealing of the airtight door.

[0012] Second, the technical solution adopted by the present utility model is to design an airtight door that can be locked and sealed. By adopting a locking and opening structure, it can achieve the dual goals of a maintenance access door and wind and moisture prevention at the same time, thereby extending the service life of the bridge. It has the advantages of fast, stable, safe and reliable operation, as well as airtightness, impact resistance, wind, dust and moisture prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view structural schematic diagram of the airtight door of the present utility model;

[0014] Figure 2 is the side view structural schematic diagram of the airtight door of the present utility model;

[0015] Figure 3 is the rear view structural schematic diagram of the airtight door of the present utility model;

[0016] Figure 4 is the three-dimensional structural schematic diagram of the door frame system;

[0017] Figure 5 is the front view structural schematic diagram of the door leaf system;

[0018] Figure 6 is the rear view structural schematic diagram of the door leaf system;

[0019] Figure 7 is the side sectional structural schematic diagram of the rotating system;

[0020] Figure 8 is the partial enlarged schematic diagram of the rotating system;

[0021] Figure 9 is the front view structural schematic diagram of the locking system;

[0022] Figure 10 is the cross-sectional structural schematic diagram of the locking system;

[0023] Figure 11 is the partial enlarged schematic diagram of the locking system;

[0024] Markings in the figure: 1. Door frame system; 101. Door frame, 102. Hinge bolt fixing bracket, 2. Door leaf system; 201. Door leaf panel, 202. Ear plate, 203. Rotating seat, 204. Door leaf partition, 3. Rotating system; 301. Fixed nut, 302. Hinge bolt, 303. Bushing, 304. Flat washer, 305. Bolted screw, 306. First locking nut, 4. Locking system, 401. Door leaf body, 402. Locking rotating shaft, 403. Locking washer, 404. O-ring washer, 405. Oil-free bushing, 406. Locking rod, 407. Rubber-wrapped locking rod, 408. Locking rotating shaft bushing, 409. Locking rotating shaft handle, 410. Locking flat washer, 411. Second locking nut, 412. Door opening handle, 413. Handle rubber, 5. Sealing mechanism. Detailed implementation mode

[0025] The following further elaborates on the detailed implementation mode of the present utility model in conjunction with the attached drawings.

[0026] A bridge airtight door includes a door frame system 1, a door leaf system 2, a rotating system 3, a locking system 4, and a sealing mechanism 5; the door leaf system 2 includes a door leaf panel 201, an ear plate 202, a rotating seat 203, and a door leaf partition 204; the door frame system 1 provides a frame support for the door leaf system 2, the rotating system 3, the locking system 4, and the sealing mechanism 5, the rotating system 3 is fixed on the door frame system 1 through the ear plate 202, and the locking system 4 and the sealing mechanism 5 are used in cooperation to achieve the overall locking and sealing of the airtight door.

[0027] The door frame system 1 includes a door frame 101 and a hinge bolt fixing bracket 102, the door frame 101 is a rectangular frame structure, the four corners of the door frame 101 are rounded to form an arc structure convenient for sealing and fixing, the hinge bolt fixing bracket 102 is fixedly arranged on the side of the door frame 101, and the ear plate 202 is fixed on the hinge bolt fixing bracket 102 through the rotating system 3.

[0028] The rotating system 3 includes a fixed nut 301, a hinge bolt 302, a bushing 303, a flat washer 304, a bolted screw 305, and a first locking nut 306. The head of the hinge bolt 302 is clamped in the middle of the ear plate 202, a through hole is opened in the head of the hinge bolt 302, after the bolted screw 305 passes through the upper end of the ear plate 202, the through hole of the hinge bolt 302, and the lower end of the ear plate 202 from top to bottom, it is locked by the first locking nut 306; the screw of the hinge bolt 302 passes through the through hole on the hinge bolt fixing bracket 102, and the fixed nut 301 is sleeved on the tail end of the screw of the hinge bolt 302 to pin and fix the hinge bolt 302 on the ear plate 202.

[0029] The locking system 4 includes a door leaf body 401, a locking rotating shaft 402, a locking washer 403, an O-ring 404, an oil-free bushing 405, a locking rod 406, a rubber wrapping for the locking rod 407, a shaft sleeve for the locking rotating shaft 408, a handle for the locking rotating shaft 409, a locking flat washer 410, a second locking nut 411, a door-opening handle 412, and a handle rubber 413. The door leaf body 401 is disposed on the door leaf panel 201. A through hole is formed in the door leaf body 401. The locking rotating shaft 402 is disposed within the shaft sleeve 408 for the locking rotating shaft, and the shaft sleeve 408 for the locking rotating shaft is disposed within the through hole. The oil-free bushing 405 is disposed adjacent to the locking rotating shaft 402 and is sealed by the locking washer 403 and the O-ring 404. A handle 409 for the locking rotating shaft is provided at the end of the shaft sleeve 408 for the locking rotating shaft, and the top end of the handle 409 for the locking rotating shaft is locked by the locking flat washer 410 and the second locking nut 411. A locking rod 406 is provided on one side of the handle 409 for the locking rotating shaft, and a rubber wrapping 407 for the locking rod is disposed outside the locking rod 406. A door-opening handle 412 is provided at the same-side end of the locking rotating shaft 402 and the handle 409 for the locking rotating shaft, and a handle rubber 413 is laid on the door-opening handle 412. After the door leaf body 401 is closed, the locking rod 406 is pulled down for locking.

[0030] The sealing mechanism 5 is located between the door frame system 1 and the door leaf system 2. The sealing mechanism 5 includes a sealing strip and a sealing ring. The sealing strip is processed by a pressing technique to ensure the airtightness of the airtight door.

[0031] During specific implementation, the door frame system 1 is fixedly connected to the bridge by T-shaped bolts; the door frame system 1 and the door leaf system 2 are connected together by a rotating mechanism 3 and can rotate relative to each other; a sealing mechanism 5 is disposed between the door frame system 1 and the door leaf system 2. The sealing strip is used for sealing around the door body, closely adhering to the bridge deck to avoid air leakage. Moreover, it is processed by a pressing technique to ensure the airtight effect of the airtight door;

[0032] A strict seal is formed between the door leaf and the door frame through the rotating locking system 4, and at the same time, the door is tightly locked. The airtight door is tightly closed to protect excellent sealing and impermeability. After compression, it is airtight to prevent gas and dust from entering the interior of the bridge. Corrosion of the internal environment is avoided. The labor intensity during the maintenance and opening process of the bridge airtight door is reduced, and the service life of the bridge is extended.

[0033] The utility model is ingeniously conceived, operates quickly, smoothly, safely and reliably, has functions of airtightness, impact resistance, wind prevention, dust prevention and moisture protection, can achieve the dual goals of maintenance access doors and wind and moisture prevention at the same time, thereby extending the service life of the bridge, is convenient to operate, simple to use, and solves the problems that the maintenance doors of existing bridge projects mainly rely on traditional simple-form steel structures, are relatively heavy, difficult to disassemble and assemble, have a large labor intensity for operators, require a lot of labor input, and the whole process is high-altitude operation, there are relatively large potential safety hazards, existing maintenance doors can only be used as maintenance access channels, cannot play roles such as wind prevention, dust prevention, moisture protection and impact resistance, and will be deformed after long-term operation, and the bridge structure will be damaged by corrosion of humid gas and other technical problems. For the existing technology, it has good market prospects and development space.

[0034] The specific preferred embodiments and examples of the utility model are described in detail above with reference to the accompanying drawings. However, the utility model is not limited to the above embodiments and examples, and various changes can be made without departing from the concept of the utility model within the knowledge scope of those skilled in the art.

Claims

1. A bridge airtight door, characterized in that: The invention comprises a door frame system (1), a door leaf system (2), a rotating system (3), a locking system (4) and a sealing mechanism (5); the door leaf system (2) comprises a door leaf panel (201), an ear plate (202), a rotating seat (203) and a door leaf partition (204); the door frame system (1) provides a frame support for the door leaf system (2), the rotating system (3), the locking system (4) and the sealing mechanism (5); the rotating system (3) is fixed to the door frame system (1) via the ear plate (202); the locking system (4) and the sealing mechanism (5) are used in combination to achieve overall locking and sealing of the airtight door.

2. The bridge airtight door according to claim 1, characterized in that: The door frame system (1) comprises a door frame (101) and a hinge bolt fixing frame (102); the door frame (101) is a rectangular frame structure; the four corners of the door frame (101) are rounded to form an arc-shaped structure that is convenient for sealing and fixing; the hinge bolt fixing frame (102) is fixedly arranged on the side of the door frame (101); and the ear plate (202) is fixed to the hinge bolt fixing frame (102) via a rotating system (3).

3. The bridge airtight door according to claim 2, characterized in that: The rotating system (3) comprises a fixing nut (301), a movable bolt (302), a bushing (303), a flat washer (304), a bolting screw (305) and a first locking nut (306); the head of the movable bolt (302) is clamped in the middle of the ear plate (202); the head of the movable bolt (302) is provided with a through hole; the bolting screw (305) passes through the upper end of the ear plate (202), the through hole of the movable bolt (302) and the lower end of the ear plate (202) from top to bottom, and is then locked by the first locking nut (306); the screw of the movable bolt (302) passes through the through hole on the movable bolt fixing frame (102); the fixing nut (301) is sleeved on the rear end of the screw of the movable bolt (302) to pin-fix the movable bolt (302) to the ear plate (202).

4. The bridge airtight door according to claim 1, characterized in that: The locking system (4) comprises a door leaf body (401), a locking shaft (402), a locking washer (403), an O-ring (404), an oil-free bushing (405), a locking rod (406), a locking rod wrapped rubber (407), a locking shaft sleeve (408), a locking shaft handle (409), a locking flat washer (410), a second locking nut (411), a door opening handle (412) and a handle rubber (413); the door leaf body (401) is arranged on a door leaf panel (201); a through hole is formed on the door leaf body (401); the locking shaft (402) is arranged in the locking shaft sleeve (408); the locking shaft sleeve (408) is arranged in the through hole; the oil-free bushing (405) is adjacent to the locking shaft The shaft (402) is provided and sealed by a locking washer (403) and an O-ring (404); a locking shaft handle (409) is provided at the end of the locking shaft sleeve (408), and the top of the locking shaft handle (409) is locked by a locking flat washer (410) and a second locking nut (411); a locking rod (406) is provided on one side of the locking shaft handle (409), and a locking rod wrapped rubber (407) is provided on the outside of the locking rod (406); a door opening handle (412) is provided at the same end of the locking shaft (402) and the locking shaft handle (409), and a handle rubber (413) is applied on the door opening handle (412); after the door leaf body (401) is closed, the locking rod (406) is pulled down to lock it.

5. The bridge airtight door according to claim 1, characterized in that: The sealing mechanism (5) is located between the door frame system (1) and the door leaf system (2), and comprises a sealing strip and a sealing ring. The sealing strip is processed by a compression technology to ensure the airtightness of the airtight door.

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