Translation type highway tunnel shaft air duct door
By adopting a combined structure of threaded rods and sealed door panels in the highway tunnel shaft air duct door, the problem of reduced efficiency and difficult maintenance caused by corrosion and high wind pressure in traditional air duct doors is solved, and more efficient ventilation and safer operation are achieved.
Patent Information
- Application Number
- CN202422197003.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-09
AI Technical Summary
Traditional highway tunnel shaft air duct doors are prone to deformation, corrosion, damage and other problems due to long-term corrosion of vehicle exhaust, humidity and high wind pressure, which leads to a reduction in the efficiency of the ventilation system, and operational safety hazards and maintenance difficulties.
A translational highway tunnel vertical shaft air duct door is designed, adopting a combined structure of threaded rods and sealed door panels. The threaded rods are driven to rotate through the driving gear and driven gear, which drives the sealed door panel to slide along the sliding groove of the fixed door frame to achieve sealing and opening and closing.
It effectively avoids the occurrence of "wind-crossing" phenomenon, improves the efficiency of the ventilation system, reduces corrosion and damage of the air duct door, reduces maintenance difficulty, and improves operation safety.
Smart Images
Figure CN222962912U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of road tunnel shaft air duct doors, in particular to a translational road tunnel shaft air duct door. Background Art
[0002] The air duct doors of highway tunnel shafts are an integral part of the tunnel ventilation system. The dirty air and fresh air in the shafts run independently in their respective air ducts without interfering with each other. The air duct doors can only be opened to inspect the air ducts when they need to be inspected. Shaft air duct doors are generally single-sided flat-opening ordinary steel doors. Due to long-term corrosion by various gases such as sulfides and hydrides in vehicle exhaust, and the humid environment, and the continuous impact of high wind pressure, the air duct doors are prone to deformation, corrosion, damage and other problems, resulting in the inability of the tunnel shaft's air supply and exhaust channels to form a closed state, and the air supply and exhaust channels have a "wind-crossing" phenomenon, which greatly reduces the efficiency of the ventilation system and makes it impossible to effectively discharge the dirty air in the tunnel and introduce fresh air.
[0003] In addition, the traditional swing door body is opened on one side. Affected by the air backflow in the shaft, the door body is difficult to open and close due to wind pressure. The door body can easily impact people at the moment of opening, posing a safety hazard to operation and is difficult to maintain.
[0004] Therefore, we propose a translational highway tunnel shaft air duct door. Utility Model Content
[0005] The utility model aims to provide a translational highway tunnel shaft air duct door to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a translationally movable highway tunnel shaft air duct door, comprising a fixed door frame fixedly installed with a wall, a door opening being provided on one side of the interior of the fixed door frame, a middle frame located on one side of the door opening being fixedly installed in the middle of the fixed door frame, the other end of the fixed door frame being penetrated and rotatably connected with a rotating shaft, a threaded rod being rotatably connected inside the fixed door frame, a driving gear located inside the fixed door frame being fixedly installed in the middle of the rotating shaft, hand wheels being fixedly installed at both ends of the rotating shaft, a transmission shaft located below the rotating shaft being rotatably connected inside the fixed door frame, a driven gear being fixedly installed at one end of the transmission shaft, the driven gear being meshed with the driving gear, the other end of the transmission shaft being transmission-connected with one end of the threaded rod, the threaded rod being penetrated and threadedly connected with a displacement block, a sealing door panel being penetrated and slidably connected with the middle of the middle frame, and the rear side of the displacement block being fixedly installed with one side of the front side of the sealing door panel.
[0007] Optionally, sealing strips are fixedly installed on the inner side of the door opening on both the front and rear sides of the sealing door panel, and the front and rear sides of the sealing door panel are respectively in tight sliding contact with the opposite surfaces of a plurality of sealing strips.
[0008] Optionally, one end of the threaded rod is rotatably connected to the other end of the fixed door frame, the other end of the threaded rod is rotatably connected to the middle part of the middle frame, and the threaded rod is located in front of the sealing door panel.
[0009] Optionally, a partition is fixedly installed on one side inside the fixed door frame, the threaded rod is rotatably connected through the middle of the partition, and a second bevel gear located between the partition and the fixed door frame is fixedly installed at one end of the threaded rod.
[0010] Optionally, the transmission shaft is located behind the threaded rod, the transmission shaft is perpendicular to the threaded rod, a first bevel gear is fixedly installed at the other end of the transmission shaft, and the first bevel gear meshes with the second bevel gear.
[0011] Optionally, the length of the sealing door panel is greater than the width of the door opening, and sliding grooves for sliding connection with the upper and lower ends of the sealing door panel are provided at the top and bottom inside the fixed door frame.
[0012] Optionally, limiting protrusions are integrally provided on the top and bottom of the sealing door panel on both the upper and lower sides of the displacement block, and the thickness of the limiting protrusions is greater than the width of the through groove in the middle of the middle frame.
[0013] Compared with the prior art, the beneficial effects of the present utility model are:
[0014] For this translational highway tunnel shaft air duct door, by setting the threaded rod and the sealing door panel, during use, the sealing door panel is in tight contact with the sealing strips installed on the door opening to achieve sealing, preventing the occurrence of the "air leakage" phenomenon. At the same time, for opening and closing the air duct door, only the handwheel needs to be rotated, causing the rotating shaft to rotate, and then driving the transmission shaft to rotate through the driving gear and the driven gear. Further, the threaded rod is driven to rotate through the first bevel gear and the second bevel gear, thereby driving the displacement block to move, causing the sealing door panel to slide along the sliding groove of the fixed door frame, which is convenient for maintenance personnel to operate and provides great convenience for the later maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of a translational highway tunnel shaft air duct door of the present utility model;
[0016] Figure 2 It is a schematic diagram of the structure of the fixed door frame of a translational highway tunnel shaft air duct door of the present utility model;
[0017] Figure 3 It is a schematic diagram of the structure of the rotating shaft of a translational highway tunnel shaft air duct door of the present utility model;
[0018] Figure 4 This is a schematic structural diagram of the threaded rod of a translation-type highway tunnel shaft air duct door of the present utility model.
[0019] In the figure: 1, fixed door frame; 2, door opening; 3, threaded rod; 4, rotating shaft; 5, handwheel; 6, driving gear; 7, transmission shaft; 8, driven gear; 9, first bevel gear; 10, second bevel gear; 11, displacement block; 12, sealing door panel; 13, sealing strip; 14, middle frame; 15, partition; 16, limiting convex block. Specific embodiments
[0020] 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.
[0021] Please refer to Figures 1 to 4 , the present utility model provides a translation-type highway tunnel shaft air duct door, including a fixed door frame 1 fixedly installed with a wall. On one side inside the fixed door frame 1, there is a door opening 2. In the middle of the fixed door frame 1, a middle frame 14 located on one side of the door opening 2 is fixedly installed. The other end of the fixed door frame 1 is rotatably connected through a rotating shaft 4. Inside the fixed door frame 1, a threaded rod 3 is rotatably connected. In the middle of the rotating shaft 4, a driving gear 6 located inside the fixed door frame 1 is fixedly installed. At both ends of the rotating shaft 4, handwheels 5 are fixedly installed. Inside the fixed door frame 1, a transmission shaft 7 located below the rotating shaft 4 is rotatably connected. At one end of the transmission shaft 7, a driven gear 8 is fixedly installed. The driven gear 8 meshes with the driving gear 6. The other end of the transmission shaft 7 is in transmission connection with one end of the threaded rod 3. The threaded rod 3 penetrates and is threadedly connected with a displacement block 11. In the middle of the middle frame 14, a sealing door panel 12 is slidably connected through. The back side of the displacement block 11 is fixedly installed with one side of the front of the sealing door panel 12. By setting the threaded rod 3 and the sealing door panel 12, when in use, the sealing door panel 12 abuts against the sealing strip 13 installed on the door opening 2 for sealing, playing a sealing role and preventing the occurrence of the "air leakage" phenomenon. At the same time, for the opening and closing of the air duct door, only the handwheel 5 needs to be rotated, so that the rotating shaft 4 rotates, and then the transmission shaft 7 is driven to rotate through the driving gear 6 and the driven gear 8. Then, the threaded rod 3 is driven to rotate through the first bevel gear 9 and the second bevel gear 10, and then the displacement block 11 is driven to move, so that the sealing door panel 12 slides along the chute of the fixed door frame 1, which is convenient for maintenance personnel to operate and provides great convenience for the later maintenance work.
[0022] A sealing strip 13 is fixedly installed inside the door opening 2 on the front and rear sides of the sealing door panel 12. The front and rear sides of the sealing door panel 12 are respectively in tight sliding contact with the opposite surfaces of a number of sealing strips 13. One end of the threaded rod 3 is rotatably connected to the other end of the fixed door frame 1, and the other end of the threaded rod 3 is rotatably connected to the middle of the middle frame 14. The threaded rod 3 is located in front of the sealing door panel 12. One side inside the fixed door frame 1 is fixedly installed with a partition 15. The threaded rod 3 is rotatably connected through the middle of the partition 15. One end of the threaded rod 3 is fixedly installed with a second bevel gear 10 located between the partition 15 and the fixed door frame 1. The transmission shaft 7 is located behind the threaded rod 3. The transmission shaft 7 is perpendicular to the threaded rod 3. The other end of the transmission shaft 7 is fixedly installed with a first bevel gear 9. The first bevel gear 9 meshes with the second bevel gear 10. The length of the sealing door panel 12 is greater than the width of the door opening 2. The top and bottom inside the fixed door frame 1 are provided with chutes for the upper and lower ends of the sealing door panel 12 to slide. The top and bottom of the sealing door panel 12 are integrally provided with limit bumps 16 located on the upper and lower sides of the displacement block 11. The thickness of the limit bumps 16 is greater than the width of the through groove in the middle of the middle frame 14.
[0023] Working principle:
[0024] During use, the sealing door panel 12 is in tight contact with the sealing strip 13 installed on the door opening 2 to play a sealing role, preventing the occurrence of the "wind leakage" phenomenon. At the same time, to open and close the air duct door, only need to rotate the handwheel 5, which makes the rotating shaft 4 rotate, and then drives the transmission shaft 7 to rotate through the driving gear 6 and the driven gear 8. Then, drive the threaded rod 3 to rotate through the first bevel gear 9 and the second bevel gear 10, and then drive the displacement block 11 to move, so that the sealing door panel 12 slides along the chute of the fixed door frame 1, which is convenient for maintenance personnel to operate and provides great convenience for the later maintenance work.
[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A translationally movable road tunnel shaft air duct door, comprising a fixed door frame (1) fixedly mounted on a wall, characterized in that: A door opening (2) is provided on one side of the interior of the fixed door frame (1); a middle frame (14) located on one side of the door opening (2) is fixedly installed in the middle of the fixed door frame (1); a rotating shaft (4) is rotatably connected to the other end of the fixed door frame (1); a threaded rod (3) is rotatably connected to the interior of the fixed door frame (1); a driving gear (6) located inside the fixed door frame (1) is fixedly installed in the middle of the rotating shaft (4); hand wheels (5) are fixedly installed at both ends of the rotating shaft (4); The middle frame (14) is rotatably connected to a transmission shaft (7) located below the rotating shaft (4); a driven gear (8) is fixedly mounted on one end of the transmission shaft (7); the driven gear (8) is meshed with the driving gear (6); the other end of the transmission shaft (7) is transmission-connected to one end of a threaded rod (3); a displacement block (11) is threadedly connected through the threaded rod (3); a sealing door panel (12) is slidably connected through the middle portion of the middle frame (14); a rear side of the displacement block (11) is fixedly mounted to one side of the front side of the sealing door panel (12).
2. The translational highway tunnel shaft air duct door according to claim 1 is characterized in that: Sealing strips (13) located at the front and rear sides of the sealing door panel (12) are fixedly mounted on the inner side of the door opening (2), and the front and rear sides of the sealing door panel (12) are in close sliding contact with the opposite surfaces of the sealing strips (13) respectively.
3. The translational highway tunnel shaft air duct door according to claim 1, characterized in that: One end of the threaded rod (3) is rotatably connected to the other end of the fixed door frame (1), and the other end of the threaded rod (3) is rotatably connected to the middle of the middle frame (14). The threaded rod (3) is located in front of the sealed door panel (12).
4. The translational highway tunnel shaft air duct door according to claim 3 is characterized in that: A partition plate (15) is fixedly mounted on one side of the interior of the fixed door frame (1), the threaded rod (3) is rotatably connected to the middle of the partition plate (15), and a second bevel gear (10) located between the partition plate (15) and the fixed door frame (1) is fixedly mounted on one end of the threaded rod (3).
5. The translational highway tunnel shaft air duct door according to claim 4 is characterized in that: The transmission shaft (7) is located at the rear side of the threaded rod (3), the transmission shaft (7) and the threaded rod (3) are arranged perpendicularly, and a first bevel gear (9) is fixedly mounted on the other end of the transmission shaft (7), and the first bevel gear (9) is meshed with a second bevel gear (10).
6. The translational highway tunnel shaft air duct door according to claim 1, characterized in that: The length of the sealing door panel (12) is greater than the width of the door opening (2), and the top and bottom of the interior of the fixed door frame (1) are provided with sliding grooves that are slidably connected to the upper and lower ends of the sealing door panel (12).
7. The translational highway tunnel shaft air duct door according to claim 1, characterized in that: The top and bottom of the sealing door panel (12) are integrally provided with limiting protrusions (16) located on the upper and lower sides of the displacement block (11), and the thickness of the limiting protrusions (16) is greater than the width of the middle through groove of the middle frame (14).