Multi-tunnel face ventilation system for tunnel construction
By installing rubber gaskets and nuts at the connection between the fan and the pipeline, the problem of air leakage at the connection was solved, enabling timely ventilation inside the tunnel and ensuring the safety of the construction environment and the health of the workers.
Patent Information
- Application Number
- CN202422820238.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-19
AI Technical Summary
During tunnel construction, air leaks or failure to seal the connection between the fan and the pipeline can cause outside air to leak out, preventing a large amount of air from being delivered into the tunnel and affecting the ventilation effect of the construction environment.
By setting up a rubber gasket and nut structure, the interiors of connecting ring one and connecting ring two are sealed, and by tightening the nut, the limiting ring is tightened inward to prevent air leakage and achieve a sealing effect.
Ensure that the ventilation fan can deliver fresh air from outside the tunnel into the tunnel, achieving timely ventilation and ensuring the safety of the construction environment and the health of the workers.
Smart Images
Figure CN223497945U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of tunnel construction ventilation systems, and in particular relates to a multi-face ventilation system for construction tunnels. Background Technology
[0002] In modern tunnel engineering, especially in the construction of long and extra-long tunnels, a multi-face (or multi-working face) simultaneous excavation technique is often adopted to shorten the construction period and improve construction efficiency. Since each working face may generate pollutants such as dust and harmful gases, effective ventilation is an indispensable factor in ensuring the safety of the construction environment and the health of construction personnel; therefore, fans are required.
[0003] When a fan transports air from outside the tunnel, it needs to be connected to a gas pipeline. However, if the connection between the fan and the pipeline leaks or cannot be sealed, outside air will leak out from the connection, preventing a large amount of air from being transported into the tunnel. This will result in the tunnel not being ventilated in time, affecting the normal construction work of the workers. Utility Model Content
[0004] The purpose of this invention is to provide a multi-face ventilation system for construction tunnels. By setting a rubber pad, the interior of connecting ring one and connecting ring two are sealed. Then, by tightening the nut, the limiting ring is tightened inward, and pressure is applied to the outer surface of the rubber pad to prevent air leakage. This solves the problem that in existing systems, if the connection is leaking or cannot be sealed, external air will leak out from the connection, preventing a large amount of air from being delivered into the tunnel, thus causing the tunnel to not be ventilated in time and affecting the normal construction work of the workers.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model discloses a multi-face ventilation system for construction tunnels, comprising a fixing ring 1, a fixing cylinder fixedly connected to the inner wall of the fixing ring 1, an air outlet net fixedly connected to the front of the fixing cylinder, an air supply pipe provided on the front of the air outlet net, a connecting ring 1 fixedly connected to the front of the fixing cylinder, a rubber pad contacting the front of the connecting ring 1, a connecting ring 2 contacting the front of the rubber pad, a limiting ring contacting the top of the rubber pad, and a nut provided on the right side of the limiting ring. This utility model, through the setting of the connecting ring 1, specifically the rubber pad, seals the interior of the connecting ring 1 and connecting ring 2. Then, by tightening the nut, the limiting ring is tightened inward, applying pressure to the outer surface of the rubber pad to prevent air leakage, thus achieving a sealing effect. The fan can then deliver fresh air from outside the tunnel into the tunnel, allowing for timely ventilation and ensuring a safe working environment for workers.
[0007] Furthermore, a fixing groove is provided on the back of the second connecting ring, and the inner wall of the fixing groove is in contact with the front of the rubber pad. The front of the second connecting ring is fixedly connected to the back of the gas pipeline. The fit between the fixing groove and the rubber pad allows it to be squeezed by the first connecting ring and the second connecting ring at the same time, preventing gas leakage. It also has a fixing effect on the rubber pad, preventing it from loosening. The trapezoidal design at the top of the rubber pad allows it to fit with the limiting ring.
[0008] Furthermore, a connecting groove is provided on the right side of the limiting ring. A fixing block one is fixedly connected to the top of the inner wall of the connecting groove, and a fixing block two is in contact with the bottom of the fixing block one. The bottom of the inner wall of the connecting groove is fixedly connected to the bottom of the fixing block two. The opening of the connecting groove allows fixing block one and fixing block two to be fixed on the limiting ring. When fixing block one and fixing block two are in contact, the limiting ring can be contracted inward, which has a squeezing effect on the top of the rubber pad and reinforces it.
[0009] Furthermore, a fixing hole is provided on the top of the fixing block one, and a screw is in contact with the inner wall of the fixing hole. The outer surface of the screw is threaded to the inner wall of the nut. The setting of the screw and nut enables the fixing block one and the fixing block two to be fixed.
[0010] Furthermore, a support frame is fixedly connected to the inner wall of the fixed cylinder, a second fixing ring is fixedly connected to the top of the support frame, a motor is fixedly connected to the inner wall of the second fixing ring, a rotating shaft is fixedly connected to the front output end of the motor, a fan is fixedly connected to the front of the rotating shaft, and the bottom of the motor contacts the top of the support frame. The second fixing ring can effectively fix the motor and prevent it from being misaligned or falling off during operation, making the device safer to use.
[0011] Furthermore, a connecting ring three is fixedly connected to the back of the fixed cylinder, and a slide rail is fixedly connected to the back of the connecting ring three. A dustproof plate is in contact with the inner wall of the slide rail, and a handle is fixedly connected to the top of the dustproof plate. The front of the dustproof plate is in contact with the back of the connecting ring three. This utility model, by setting up a dustproof plate, can block some large particles contained in the air, and at the same time prevent large foreign objects from being sucked into the fixed cylinder and damaging the exhaust fan. After long-term use, dust will accumulate on the surface of the dustproof plate. The operator can lift the handle to remove the dustproof plate from the slide rail for cleaning, making the device more convenient to use, protecting the equipment, and extending the service life of the equipment.
[0012] This utility model has the following beneficial effects:
[0013] 1. This utility model sets up a connecting ring one, specifically through the setting of a rubber pad, so that the connecting ring one and the connecting ring two are sealed inside. Then, the nut is tightened to tighten the limiting ring inward, applying pressure to the outer surface of the rubber pad to prevent air leakage and achieve a sealing effect in this part. The fan can then send fresh air from outside the tunnel into the tunnel, so that the tunnel can be ventilated in a timely manner, ensuring the working environment of the staff.
[0014] 2. This utility model incorporates a dustproof plate, which can block some large particles in the air and prevent large foreign objects from being sucked into the fixed cylinder and damaging the exhaust fan. After prolonged use, dust will accumulate on the surface of the dustproof plate. Workers can remove the dustproof plate from the slide rail by lifting the handle for cleaning, making the device more convenient to use, protecting the equipment, and extending its service life.
[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the fixed cylinder structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the rubber pad structure of this utility model;
[0019] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;
[0020] Figure 4 This is a schematic diagram of the support frame structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the slide rail structure of this utility model.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1. Fixing ring one; 11. Fixing cylinder; 12. Air outlet mesh; 13. Air supply pipe; 2. Connecting ring one; 21. Rubber pad; 22. Connecting ring two; 221. Fixing groove; 23. Restricting ring; 3. Connecting groove; 31. Fixing block one; 32. Fixing block two; 33. Screw; 331. Nut; 4. Support frame; 41. Fixing ring two; 42. Motor; 421. Rotating shaft; 43. Exhaust fan; 5. Connecting ring three; 51. Slide rail; 52. Dustproof plate; 521. Handle. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0025] Please see Figure 1-5 As shown, this utility model is a multi-face ventilation system for construction tunnels, including a fixing ring 1, a fixing cylinder 11 fixedly connected to the inner wall of the fixing ring 1, an air outlet net 12 fixedly connected to the front of the fixing cylinder 11, an air supply pipe 13 provided on the front of the air outlet net 12, a connecting ring 2 fixedly connected to the front of the fixing cylinder 11, a rubber pad 21 in contact with the front of the connecting ring 2, a connecting ring 22 in contact with the front of the rubber pad 21, a limiting ring 23 in contact with the top of the rubber pad 21, and a nut 331 provided on the right side of the limiting ring 23. This utility model, by setting the connecting ring 2, specifically by setting the rubber pad 21, seals the interior of the connecting ring 2 and the connecting ring 22. Then, by tightening the nut 331, the limiting ring 23 is tightened inward, applying pressure to the outer surface of the rubber pad 21 to prevent air leakage, thus achieving a sealing effect. The fan can then send fresh air from outside the tunnel into the tunnel, allowing for timely ventilation and ensuring a good working environment for the workers.
[0026] The back of the connecting ring 22 has a fixing groove 221. The inner wall of the fixing groove 221 is in contact with the front of the rubber pad 21. The front of the connecting ring 22 is fixedly connected to the back of the gas pipeline 13.
[0027] A connecting groove 3 is provided on the right side of the limiting ring 23. A fixing block 31 is fixedly connected to the top of the inner wall of the connecting groove 3, and a fixing block 32 is contacted at the bottom of the fixing block 31. The bottom of the inner wall of the connecting groove 3 is fixedly connected to the bottom of the fixing block 32.
[0028] The top of the fixing block 31 has a fixing hole, and the inner wall of the fixing hole is in contact with a screw 33. The outer surface of the screw 33 is threadedly connected to the inner wall of the nut 331.
[0029] A support frame 4 is fixedly connected to the inner wall of the fixed cylinder 11. A second fixed ring 41 is fixedly connected to the top of the support frame 4. A motor 42 is fixedly connected to the inner wall of the second fixed ring 41. A rotating shaft 421 is fixedly connected to the front output end of the motor 42. A fan 43 is fixedly connected to the front of the rotating shaft 421. The bottom of the motor 42 is in contact with the top of the support frame 4.
[0030] A connecting ring 3 5 is fixedly connected to the back of the fixed cylinder 11, and a slide rail 51 is fixedly connected to the back of the connecting ring 3 5. A dustproof plate 52 is in contact with the inner wall of the slide rail 51, and a handle 521 is fixedly connected to the top of the dustproof plate 52. The front of the dustproof plate 52 is in contact with the back of the connecting ring 3 5. This utility model, by setting the dustproof plate 52, can block some large particles contained in the air, and at the same time prevent large foreign objects from being sucked into the fixed cylinder 11 and damaging the exhaust fan 43. After long-term use, dust will accumulate on the surface of the dustproof plate 52. The operator can lift the handle 521 to remove the dustproof plate 52 from the slide rail 51 for cleaning, making the overall use of the device more convenient, protecting the equipment, and extending the service life of the equipment.
[0031] A specific application of this embodiment is as follows: The rubber pad 21 is placed inside the fixing groove 221. Then, the connecting ring 22 is aligned with the connecting ring 2, clamping the rubber pad 21 to seal its inner wall and prevent gas leakage. Then, by tightening the nut 331, the fixing block 31 and the fixing block 32 move in opposite directions. Simultaneously, the fixing block 31 and the fixing block 32 tighten the limiting ring 23, applying pressure to the top of the rubber pad 21 to prevent gas leakage and reinforcing the connection between the connecting ring 2 and the connecting ring 22. Then, by starting the motor 42, the rotating shaft 421 drives the exhaust fan 43 to rotate, drawing air through the dustproof plate 52 into the fixing cylinder 11. Under the action of the exhaust fan 43, the air is transported from the exhaust net 12 to the air supply pipe 13, thus ventilating the outside of the tunnel. Fresh air is introduced into the tunnel, allowing for timely ventilation and ensuring a safe working environment for staff. The slide rail 51, fixed to the right side of connecting ring 3 5, confines the dustproof plate 52 within it. The dustproof plate 52 can block some large particles in the air and prevent large foreign objects from being sucked into the fixed cylinder 11 and damaging the exhaust fan 43. After prolonged use, dust will accumulate on the surface of the dustproof plate 52. Staff can remove the dustproof plate 52 from the slide rail 51 by lifting the handle 521 for cleaning, making the device more convenient to use, protecting the equipment, and extending its service life. The fixing ring 2 41 stably secures the motor 42, preventing it from falling off during operation and making the equipment safer to use.
[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with this embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A multi-face ventilation system for construction tunnels, comprising a fixing ring (1), wherein a fixing cylinder (11) is fixedly connected to the inner wall of the fixing ring (1), an air outlet net (12) is fixedly connected to the front of the fixing cylinder (11), and an air supply pipe (13) is provided on the front of the air outlet net (12), characterized in that: The fixed cylinder (11) is fixedly connected to a connecting ring 1 (2) on the front side. The connecting ring 1 (2) is in contact with a rubber pad (21) on the front side. The rubber pad (21) is in contact with a connecting ring 2 (22) on the front side. The top of the rubber pad (21) is in contact with a limiting ring (23). A nut (331) is provided on the right side of the limiting ring (23).
2. The multi-face ventilation system for construction tunnels according to claim 1, characterized in that, The back of the connecting ring 2 (22) is provided with a fixing groove (221), the inner wall of the fixing groove (221) is in contact with the front of the rubber pad (21), and the front of the connecting ring 2 (22) is fixedly connected to the back of the gas pipeline (13).
3. A multi-face ventilation system for construction tunnels according to claim 2, characterized in that, The right side of the limiting ring (23) is provided with a connecting groove (3), and a fixing block one (31) is fixedly connected to the top of the inner wall of the connecting groove (3). The bottom of the fixing block one (31) contacts the fixing block two (32), and the bottom of the inner wall of the connecting groove (3) is fixedly connected to the bottom of the fixing block two (32).
4. A multi-face ventilation system for construction tunnels according to claim 3, characterized in that, The top of the fixing block (31) has a fixing hole, and the inner wall of the fixing hole is in contact with a screw (33). The outer surface of the screw (33) is threadedly connected to the inner wall of the nut (331).
5. A multi-face ventilation system for construction tunnels according to claim 4, characterized in that, A support frame (4) is fixedly connected to the inner wall of the fixed cylinder (11), and a second fixed ring (41) is fixedly connected to the top of the support frame (4). A motor (42) is fixedly connected to the inner wall of the second fixed ring (41).
6. A multi-face ventilation system for construction tunnels according to claim 5, characterized in that, The motor (42) has a rotating shaft (421) fixedly connected to the output end on the front side, and a fan (43) is fixedly connected to the front side of the rotating shaft (421). The bottom of the motor (42) is in contact with the top of the support frame (4).
7. A multi-face ventilation system for construction tunnels according to claim 1, characterized in that, The back of the fixed cylinder (11) is fixedly connected to a connecting ring three (5), the back of the connecting ring three (5) is fixedly connected to a slide rail (51), the inner wall of the slide rail (51) is in contact with a dustproof plate (52), the top of the dustproof plate (52) is fixedly connected to a handle (521), and the front of the dustproof plate (52) is in contact with the back of the connecting ring three (5).