Ventilation structure for subway cab

Abstract

The utility model belongs to the technical field of subway ventilation, and particularly discloses a ventilation structure for a subway cab, which comprises a ventilation pipe, one end of the ventilation pipe is movably provided with a redirection pipe through a rotary connecting mechanism, the inner surface of the ventilation pipe is rotatably connected with a rotary drum, and the inner side of the rotary drum is fixedly provided with a rectangular rotary rod in a penetrating manner; blades are arranged on the outer surface of the rectangular rotating rod, sealing rings are arranged on the edges of the blades, a rotation adjusting mechanism for driving the blades is arranged on the outer surface of the ventilation pipe, and the rotation adjusting mechanism comprises a pipe head ring fixedly connected to the end of the ventilation pipe. According to the ventilation structure for the subway cab, when emergency situations such as a fire disaster occur, due to the fact that an electric switch is not needed any more, the ventilation pipe can be manually controlled to be opened through the rotary adjusting mechanism, rapid opening and closing of the ventilation pipeline are guaranteed, and harmful gas and smoke can be effectively exhausted even if power is interrupted; and the health and safety of drivers and workers are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of subway ventilation, and in particular to a ventilation and air exchange structure for a subway driver's cab. Background Art

[0002] A special ventilation system is usually installed in the subway driver's cab to ensure the driver's comfort and safety during driving. These ventilation equipment usually include components such as fans, vents and exhaust ducts, which keep the air in the driver's cab fresh and flowing by circulating air or discharging exhaust gas and pollutants inside the car.

[0003] At present, the ventilation ducts in the subway driver's room are usually opened and closed by electric switches. In the event of an emergency such as a fire in the subway, power outages may occur, making it difficult to open or close the ventilation ducts. The operation of the ventilation system is essential for removing harmful gases and smoke. Failure to open the ventilation ducts normally will affect the health and safety of the driver and staff. Utility Model Content

[0004] In view of this, the purpose of the utility model is to solve the shortcomings existing in the background technology, and to propose a ventilation structure for a subway driver's cab to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the utility model provides a ventilation structure for a subway driver's cab, including a ventilation pipe, one end of which is movably installed with a redirecting pipe through a rotating connection mechanism, the inner surface of the ventilation pipe is rotatably connected with a rotating drum, the inner side of the rotating drum is fixedly penetrated with a rectangular rotating rod, the outer surface of the rectangular rotating rod is provided with blades, the edges of the blades are provided with sealing rings, and the outer surface of the ventilation pipe is provided with a rotation adjustment mechanism for driving the blades.

[0006] Preferably, the rotating connection mechanism includes a pipe head ring fixedly connected to the end of the ventilation pipe, the outer surface of the pipe head ring is provided with a rubber pad, the outer surface of the pipe head ring is rotatably connected with a turntable, the outer surface of the turntable is fixedly connected to an end of the redirecting pipe close to the ventilation pipe, and the angle of the redirecting pipe can be adjusted through the rotating connection mechanism, so that in an emergency such as a fire, the redirecting pipe can be aimed at the fire smoke to accelerate the discharge of the smoke.

[0007] Preferably, the rotation adjustment mechanism comprises a fixing frame fixedly connected to the outer surface of the ventilation pipe, a guide rod is fixedly penetrated through the inner side of the fixing frame, and the blades in the ventilation pipe can be manually opened by the rotation adjustment mechanism.

[0008] Preferably, an upper limiting ring is provided on the top of the guide rod, and a lower limiting ring is fixedly connected to the outer surface of the guide rod.

[0009] Preferably, the outer surface of the guide rod is rotatably connected to a scale dial, the outer surface of the scale dial is provided with an arc hole, and the inner wall of the arc hole is slidably connected to the outer surface of the guide rod.

[0010] Preferably, the outer surface of the scale dial is provided with scale numbers, the outer surface of the scale dial is provided with a locking hole, the top of the scale dial is fixedly connected with a lever, the rectangular rotating rod passes through the locking hole, and the scale dial can drive the rectangular rotating rod to rotate with the rotating drum during rotation.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The subway driver's cab uses a ventilation structure. In the event of an emergency such as a fire, since it no longer relies on an electric switch, the ventilation pipe can be opened manually by rotating the adjustment mechanism to ensure the rapid opening and closing of the ventilation duct. Even if the power is cut off, harmful gases and smoke can be effectively removed to ensure the health and safety of the driver and staff.

[0013] 2. The subway driver's cab uses a ventilation structure. By rotating the adjustment mechanism and the scale dial, the driver can accurately control the opening degree of the ventilation duct, thereby adjusting the ventilation effect, making the adjustment process more intuitive and controllable. The driver can clearly understand the opening range of the blades and thus respond to different situations more effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the surface structure of the pipe head ring of this application;

[0016] Figure 3 This is a schematic diagram of the internal structure of the ventilation duct for this application;

[0017] Figure 4 This is a schematic diagram of the surface structure of the fixing frame of this application;

[0018] Figure 5 For this application Figure 4 The enlarged image at a in the middle;

[0019] Figure 6 This is a schematic diagram of the scale turntable structure of this application.

[0020] Among them: 1. ventilation pipe; 2. pipe head ring; 3. rubber pad; 4. rotating disk; 5. redirecting pipe; 6. rotating drum; 7. rectangular rotating rod; 8. blades; 9. sealing ring; 10. fixing frame; 11. guide rod; 12. upper limit ring; 13. lower limit ring; 14. scale rotating disk; 15. arc hole; 16. scale number; 17. positioning hole; 18. lever. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] See also Figure 1-6 A ventilation structure for a subway driver's cab comprises a ventilation pipe 1, one end of which is movably provided with a redirecting pipe 5 through a rotating connection mechanism, the inner surface of the ventilation pipe 1 is rotatably connected with a rotating drum 6, a rectangular rotating rod 7 is fixedly penetrated through the inner side of the rotating drum 6, a blade 8 is arranged on the outer surface of the rectangular rotating rod 7, a sealing ring 9 is arranged at the edge of the blade 8, and a rotation adjustment mechanism for driving the blade 8 is arranged on the outer surface of the ventilation pipe 1.

[0023] With the above technical solution, the driver and staff can manually control the opening and closing of the ventilation ducts through the rotating adjustment mechanism without relying on the electric switch, which means that even in an emergency situation where the power is cut off, the ventilation system can still be effectively manipulated manually to ensure air circulation and the discharge of harmful gases.

[0024] Specifically, the rotating connection mechanism includes a pipe head ring 2 fixedly connected to the end of the ventilation pipe 1, the outer surface of the pipe head ring 2 is provided with a rubber pad 3, the outer surface of the pipe head ring 2 is rotatably connected to a turntable 4, and the outer surface of the turntable 4 is fixedly connected to the end of the redirecting pipe 5 close to the ventilation pipe 1.

[0025] Through the above technical solution, the pipe head ring 2 cooperates with the turntable 4 to tightly and stably install the redirection pipe 5 at the end of the ventilation pipe 1.

[0026] Specifically, the rotation adjustment mechanism includes a fixing frame 10 fixedly connected to the outer surface of the ventilation pipe 1 , and a guide rod 11 is fixedly penetrated through the inner side of the fixing frame 10 .

[0027] Through the above technical solution, the guide rod 11 plays the role of guiding the scale dial 14, so that the scale dial 14 can drive the rectangular rotating rod 7 during the rotation process.

[0028] Specifically, a limiting upper ring 12 is provided on the top of the guide rod 11 , and a limiting lower ring 13 is fixedly connected to the outer surface of the guide rod 11 .

[0029] Through the above technical solution, when the scale dial 14 slides along the guide rod 11 , the scale dial 14 is clamped between the limit upper ring 12 and the limit lower ring 13 .

[0030] Specifically, the outer surface of the guide rod 11 is rotatably connected with a scale dial 14 , the outer surface of the scale dial 14 is provided with an arc hole 15 , and the inner wall of the arc hole 15 is slidably connected with the outer surface of the guide rod 11 .

[0031] Through the above technical solution, the scale numbers 16 on the scale dial 14 can prompt the driver how much the blade 8 is rotated, that is, how large the opening angle is.

[0032] Specifically, the outer surface of the scale dial 14 is provided with scale numbers 16 , the outer surface of the scale dial 14 is provided with a locking hole 17 , and the top of the scale dial 14 is fixedly connected with a lever 18 .

[0033] Through the above technical solution, the rectangular rotating rod 7 passes through the locking hole 17, and the scale rotating disk 14 also drives the rectangular rotating rod 7 through the locking hole 17 during the rotation process.

[0034] Working principle: The rotating connection mechanism in the device is located at the end of the ventilation pipe 1, and is composed of a pipe head ring 2, a rubber pad 3 and a rotary disk 4. The pipe head ring 2 is fixedly connected to the end of the ventilation pipe 1, and the rubber pad 3 is located on the outer surface of the pipe head ring 2 to provide a stable support. The rotary disk 4 is rotatably connected to the outer surface of the pipe head ring 2 and is fixedly connected to the redirecting pipe 5 near one end of the ventilation pipe 1. The rotating connection mechanism designed in this way allows the redirecting pipe 5 to be tightly and stably installed at the end of the ventilation pipe 1, and when a fire occurs and harmful smoke is generated, the angle of the redirecting pipe 5 can be adjusted, and the ventilation pipe 1 can be opened with the rotating adjustment mechanism for rapid smoke exhaust. The rotating adjustment mechanism is located on the outer surface of the ventilation pipe 1. When the ventilation pipe 1 is manually opened, the angle of the redirecting pipe 5 can be adjusted. During the process, it is necessary to manually toggle the lever 18 to drive the scale dial 14 to rotate. The scale dial 14 can slide along the guide rod 11 under the relative limit of the limit upper ring 12 and the limit lower ring 13, and then drive the rectangular rotating rod 7, so that the rectangular rotating rod 7 and the rotating drum 6 rotate synchronously, and the blade 8 can be rotated, so that the ventilation pipe 1 is manually opened for ventilation. In this process, the driver can understand the opening range of the blade 8 through the scale number 16 on the scale dial 14. When harmful smoke is discharged from the outside to the inside of the car, the blade 8 can be closed, and the sealing ring 9 is cooperated to make the ventilation pipe 1 in a closed state.

[0035] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A ventilation structure for a subway driver's cab, comprising a ventilation pipe (1), characterized in that: A redirecting pipe (5) is movably mounted on one end of the ventilation pipe (1) via a rotating connection mechanism, a rotating drum (6) is rotatably connected to the inner surface of the ventilation pipe (1), a rectangular rotating rod (7) is fixedly penetrated through the inner side of the rotating drum (6), a blade (8) is arranged on the outer surface of the rectangular rotating rod (7), a sealing ring (9) is arranged at the edge of the blade (8), and a rotation adjustment mechanism for driving the blade (8) is arranged on the outer surface of the ventilation pipe (1).

2. A ventilation structure for a subway driver's cab according to claim 1, characterized in that: The rotary connection mechanism comprises a pipe head ring (2) fixedly connected to the end of the ventilation pipe (1); a rubber pad (3) is provided on the outer surface of the pipe head ring (2); a rotary disk (4) is rotatably connected to the outer surface of the pipe head ring (2); and the outer surface of the rotary disk (4) is fixedly connected to an end of a redirecting pipe (5) close to the ventilation pipe (1).

3. A ventilation structure for a subway driver's cab according to claim 1, characterized in that: The rotation adjustment mechanism comprises a fixing frame (10) fixedly connected to the outer surface of the ventilation pipe (1), and a guide rod (11) is fixedly penetrated through the inner side of the fixing frame (10).

4. A ventilation structure for a subway driver's cab according to claim 3, characterized in that: An upper limiting ring (12) is arranged on the top of the guide rod (11), and a lower limiting ring (13) is fixedly connected to the outer surface of the guide rod (11).

5. The ventilation structure for a subway driver's cab according to claim 3 is characterized in that: The outer surface of the guide rod (11) is rotatably connected to a scale dial (14), the outer surface of the scale dial (14) is provided with an arc hole (15), and the inner wall of the arc hole (15) is slidably connected to the outer surface of the guide rod (11).

6. A ventilation structure for a subway driver's cab according to claim 5, characterized in that: The outer surface of the scale dial (14) is provided with scale numbers (16), the outer surface of the scale dial (14) is provided with a locking hole (17), and the top of the scale dial (14) is fixedly connected with a shifting rod (18).

Images