Inflatable air pressure buffer protection device for tunnel

Abstract

The utility model discloses an inflatable air pressure buffer protection device for a tunnel, and relates to the technical field of safety protection. The device comprises a buffer device; a positioning device; an adjusting device; the buffer device comprises a fixing frame, an inflatable airbag is fixedly connected to the side wall in the fixing frame, a rubber pipe is fixedly connected to the inner wall of the inflatable airbag, a buffer airbag is fixedly connected to the end, away from the inflatable airbag, of the rubber pipe, a partition plate is fixedly connected to the outer wall of the buffer airbag through a communicating groove, and the communicating groove is formed in the wall of the partition plate. Kinetic energy is absorbed through the buffering device, when the inflatable air bag is impacted and deforms, internal air can quickly flow to the buffering air bag through the rubber pipe, breakage caused by instant too high internal pressure of the inflatable air bag is avoided, the buffering air bag further expands after receiving the air, the buffering stroke is increased, and the buffering time is prolonged. Impact force can be absorbed and dispersed more effectively, and the purpose of buffering protection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection, and particularly relates to an inflatable air pressure buffer protection device for tunnels. Background Technique

[0002] During the construction and use of tunnels, ensuring safety is of utmost importance. However, due to the complex internal environment of tunnels, there are various potential risks, such as vehicle impacts, which may generate huge impact forces and pose a threat to the tunnel structure.

[0003] When traditional tunnel protection devices respond to impact forces, they often have problems with poor buffering effects. When subjected to a strong impact, local pressure is likely to be too high, resulting in rupture, and they cannot effectively absorb and disperse the impact force, thus affecting the protection effect. Moreover, existing protection devices usually have difficulty adapting to the inner walls of tunnels with different curvatures and cannot fit stably, leading to loopholes in protection.

[0004] The utility model effectively absorbs kinetic energy by setting a buffer device, avoids the rupture of the inflatable airbag due to excessive pressure, enhances the buffering effect. At the same time, by using a positioning device and an adjusting device, the outer curvature of the device can be adjusted to closely fit the inner wall of the tunnel, providing comprehensive and reliable protection. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the technical solution adopted by the utility model to solve its technical problems is: an inflatable air pressure buffer protection device for tunnels, including: a buffer device; a positioning device, the outer wall of the positioning device is fixedly connected to the outer wall of the buffer device; an adjusting device, the outer wall of the adjusting device is fixedly connected to the outer wall of the positioning device; the buffer device includes a fixed frame, the side wall inside the fixed frame is fixedly connected with an inflatable airbag, the inner wall of the inflatable airbag is fixedly connected with a rubber tube, the end of the rubber tube away from the inflatable airbag is fixedly connected with a buffer airbag, the outer wall of the buffer airbag is fixedly connected with a partition plate through a communication groove, and the communication groove is opened in the wall of the partition plate, the outer wall of the partition plate is fixedly connected to the side wall inside the fixed frame. The buffer device is set to absorb kinetic energy. When the inflatable airbag is deformed by impact, the internal gas can quickly flow to the buffer airbag through the rubber tube, avoiding the rupture caused by the instantaneous excessive pressure inside the inflatable airbag. After receiving the gas, the buffer airbag further expands, increasing the buffering stroke and time, and can more effectively absorb and disperse the impact force.

[0006] Preferably, the positioning device includes a pressing plate, a connecting plate is fixedly connected to the outer wall of the pressing plate, arc-shaped strips are fixedly connected to both sides of the pressing plate, through holes are formed in the walls of the arc-shaped strips, a limiting plate is fixedly connected to the outer wall of the arc-shaped strips, the outer wall of the connecting plate is fixedly connected to the outer wall of the fixed frame, one side of the connecting plate away from the pressing plate is fixedly connected to the outer wall of the partition plate, and the outer wall of the arc-shaped strip is fixedly connected to the outer wall of the fixed frame.

[0007] Preferably, the adjusting device includes an air charging pipe, a valve core is fixedly connected to the inner wall of the air charging pipe, an adjusting airbag is fixedly connected to the outer wall of the air charging pipe, an elastic band is fixedly connected to the outer wall of the adjusting airbag, a fitting plate is fixedly connected to the outer wall of the elastic band, the outer wall of the elastic band is fixedly connected to the outer wall of the arc-shaped strip, the outer wall of the elastic band is fixedly connected to one end of the partition plate away from the inflatable airbag, the outer wall of the adjusting airbag is fixedly connected to the outer wall of the pressing plate, one end of the adjusting airbag away from the pressing plate is fixedly connected to the outer wall of the limiting plate, and the outer wall of the air charging pipe is fixedly connected to the inner wall of the limiting plate and the air charging pipe penetrates through the limiting plate. The positioning device and the adjusting device are provided to adjust the outer arc of the buffer protection device to adapt to the inner walls with different arcs inside the tunnel, so that the buffer protection device can be stably attached to the tunnel.

[0008] The beneficial effects of the present utility model are as follows:

[0009] 1. By providing a buffer device in the present utility model to absorb kinetic energy, when the inflatable airbag is deformed by an impact, the internal gas can quickly flow through the rubber tube to the buffer airbag, avoiding the rupture caused by the instantaneous excessive pressure inside the inflatable airbag. After receiving the gas, the buffer airbag further expands, increasing the buffer stroke and time, and being able to more effectively absorb and disperse the impact force.

[0010] 2. By providing a positioning device and an adjusting device in the present utility model to adjust the outer arc of the buffer protection device to adapt to the inner walls with different arcs inside the tunnel, so that the buffer protection device can be stably attached to the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the front view of the present utility model;

[0012] Figure 2 is the cross-sectional view of the present utility model;

[0013] Figure 3 is the structural schematic diagram of the buffer device of the present utility model;

[0014] Figure 4 is the partial structural schematic diagram on the arc-shaped strip of the present utility model.

[0015] In the figure: 1. Buffer device; 2. Positioning device; 3. Adjusting device; 11. Fixed frame; 12. Inflatable airbag; 13. Rubber tube; 14. Buffer airbag; 15. Partition plate; 16. Communication groove; 21. Extrusion plate; 22. Connecting plate; 23. Arc-shaped strip; 24. Through hole; 25. Limiting plate; 31. Inflation tube; 32. Valve core; 33. Adjusting airbag; 34. Elastic band; 35. Fitting plate. Detailed implementation mode

[0016] The following further elaborates on the present utility model in conjunction with the accompanying drawings and the detailed implementation mode. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The selection and description of the embodiments are for better explaining the principles and practical applications of the present utility model, and enabling those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0017] Embodiment: Please refer to Figure 1 - Figure 4 , the present utility model provides a technical solution: an inflatable air pressure buffer protection device for tunnels, including: a buffer device 1; a positioning device 2, the outer wall of the positioning device 2 is fixedly connected to the outer wall of the buffer device 1; an adjusting device 3, the outer wall of the adjusting device 3 is fixedly connected to the outer wall of the positioning device 2; the buffer device 1 includes a fixed frame 11, the inner side wall of the fixed frame 11 is fixedly connected with an inflatable airbag 12, the inner wall of the inflatable airbag 12 is fixedly connected with a rubber tube 13, one end of the rubber tube 13 away from the inflatable airbag 12 is fixedly connected with a buffer airbag 14, the outer wall of the buffer airbag 14 is fixedly connected with a partition plate 15 through a communication groove 16, and the communication groove 16 is opened in the wall of the partition plate 15, the outer wall of the partition plate 15 is fixedly connected to the inner side wall of the fixed frame 11, when the inflatable airbag 12 is pressured and the gas moves, the inflatable airbag 12 transmits the force to the fixed frame 11, and part of the gas will be transmitted to the inside of the buffer airbag 14 through the rubber tube 13, thereby causing the buffer airbag 14 to expand. The expanded buffer airbag 14 not only plays a role in buffering the gas, but also further fixedly connects the position of the buffer airbag 14 in cooperation with the communication groove 16 of the partition plate 15, preventing the buffer airbag 14 from falling off and losing the buffering effect.

[0018] The positioning device 2 includes an extrusion plate 21, the outer wall of the extrusion plate 21 is fixedly connected with a connecting plate 22, both sides of the extrusion plate 21 are fixedly connected with arc-shaped strips 23, through holes 24 are opened in the walls of the arc-shaped strips 23, the outer walls of the arc-shaped strips 23 are fixedly connected with limiting plates 25, the outer wall of the connecting plate 22 is fixedly connected to the outer wall of the fixed frame 11, the side of the connecting plate 22 away from the extrusion plate 21 is fixedly connected to the outer wall of the partition plate 15, and the outer walls of the arc-shaped strips 23 are fixedly connected to the outer wall of the fixed frame 11.

[0019] The adjusting device 3 includes an inflation tube 31. A valve core 32 is fixedly connected to the inner wall of the inflation tube 31. An adjusting airbag 33 is fixedly connected to the outer wall of the inflation tube 31. An elastic band 34 is fixedly connected to the outer wall of the adjusting airbag 33. A fitting plate 35 is fixedly connected to the outer wall of the elastic band 34. The outer wall of the elastic band 34 is fixedly connected to the outer wall of the arc-shaped strip 23. The outer wall of the elastic band 34 is fixedly connected to one end of the partition plate 15 away from the inflation airbag 12. The outer wall of the adjusting airbag 33 is fixedly connected to the outer wall of the pressing plate 21. One end of the adjusting airbag 33 away from the pressing plate 21 is fixedly connected to the outer wall of the limiting plate 25. The outer wall of the inflation tube 31 is fixedly connected to the inner wall of the limiting plate 25, and the inflation tube 31 penetrates through the limiting plate 25. When the inflation airbag 12 is inflated, an air gun needs to be inserted through the through hole 24 on the arc-shaped strip 23. The operator inflates the inside of the adjusting airbag 33 through the inflation tube 31. The gas enters the inflation tube 31 through the valve core 32, and then is filled into the adjusting airbag 33 to make it expand. The adjusting airbag 33 expands due to inflation. The expanded adjusting airbag 33 will push the elastic band 34 to make it open. Under the clamping action of the pressing plate 21 on the connecting plate 22 and the limiting plate 25, the upper and lower expansion positions of the adjusting airbag 33 are limited. The arc-shaped strip 23 and the partition plate 15 limit the opening position of the elastic band 34, so that the adjusting airbag 33 can only expand towards the side close to the fitting plate 35.

[0020] Working principle:

[0021] When the buffer protection device is impacted, the buffer device 1 is provided to absorb kinetic energy. The inflation airbag 12 is pressured and the gas moves to drive the inflation airbag 12 to transfer the force to the fixed frame 11. And part of the gas will be transferred to the inside of the buffer airbag 14 through the rubber tube 13, thereby making the buffer airbag 14 expand. The expanded buffer airbag 14 not only plays a role in buffering the gas, but also further fixedly connects the position of the buffer airbag 14 in cooperation with the communication groove 16 of the partition plate 15 to prevent the buffer airbag 14 from falling off and losing the buffer effect. When the inflation airbag 12 is deformed due to impact, the internal gas can quickly flow to the buffer airbag 14 through the rubber tube 13, avoiding the rupture caused by the instantaneous excessive pressure inside the inflation airbag 12, enhancing the overall stability and reliability. Secondly, after receiving the gas, the buffer airbag 14 further expands, increasing the buffer stroke and time, and can more effectively absorb and disperse the impact force, improving the buffer effect. Moreover, this design can enable the inflation airbag 12 to quickly recover to a partial initial state after withstanding one impact, providing continuous protection for possible subsequent impacts. The existence of the buffer airbag 14 can also share the pressure of the inflation airbag 12 and extend the service life of the inflation airbag 12.

[0022] Before use, set the positioning device 2 and the adjusting device 3 to adjust the outer arc of the buffer protection device to adapt to the inner walls with different curvatures inside the tunnel. When the inflatable airbag 12 is inflated, the air gun needs to be inserted through the through hole 24 on the arc-shaped strip 23. The operator inflates the inside of the adjusting airbag 33 through the air filling pipe 31. The gas enters the air filling pipe 31 through the valve core 32 and then is filled into the adjusting airbag 33 to make it expand. The adjusting airbag 33 expands due to inflation. The expanded adjusting airbag 33 will push the elastic band 34 to make it open. Due to the clamping action of the pressing plate 21 and the limiting plate 25 on the connecting plate 22, the up and down expansion positions of the adjusting airbag 33 are limited. The arc-shaped strip 23 and the partition plate 15 limit the opening position of the elastic band 34, so that the adjusting airbag 33 can only expand towards the side close to the fitting plate 35. The elliptical adjusting airbag 33 determines that the curvature of the long axis part is relatively small, and the curvature of the short axis part is relatively large. A small curvature means that the long axis part deforms relatively less under the same pressure, while the short axis part with a large curvature is more likely to deform and expand. Therefore, when the adjusting airbag 33 expands unidirectionally, the central part will bulge preferentially, and then the seven fitting plates 35 form an arc surface, so as to fit the inner walls of the tunnel with different arc angles.

[0023] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented by conventional means in the art without special description and limitation.

Claims

1. An inflatable air pressure buffer protection device for tunnels, characterized in that, Comprising: A buffer device (1); A positioning device (2), the outer wall of the positioning device (2) being fixedly connected to the outer wall of the buffer device (1); An adjusting device (3), the outer wall of the adjusting device (3) being fixedly connected to the outer wall of the positioning device (2); The buffer device (1) includes a fixed frame (11), a side wall inside the fixed frame (11) being fixedly connected to an inflatable airbag (12), an inner wall of the inflatable airbag (12) being fixedly connected to a rubber tube (13), one end of the rubber tube (13) away from the inflatable airbag (12) being fixedly connected to a buffer airbag (14), an outer wall of the buffer airbag (14) being fixedly connected to a partition plate (15) through a communication groove (16), and the communication groove (16) being opened in the wall of the partition plate (15).

2. The inflatable air pressure buffer protection device for a tunnel according to claim 1, characterized in that: The outer wall of the partition plate (15) is fixedly connected to the side wall inside the fixed frame (11).

3. The inflatable air pressure buffer protection device for a tunnel according to claim 1, wherein: The positioning device (2) includes a pressing plate (21), an outer wall of the pressing plate (21) being fixedly connected to a connecting plate (22), two sides of the pressing plate (21) being fixedly connected to arc-shaped strips (23), a through hole (24) being opened in the wall of the arc-shaped strips (23), and an outer wall of the arc-shaped strips (23) being fixedly connected to a limiting plate (25).

4. The inflatable air pressure buffer protection device for a tunnel according to claim 3, characterized in that: The outer wall of the connecting plate (22) is fixedly connected to the outer wall of the fixed frame (11), one side of the connecting plate (22) away from the pressing plate (21) being fixedly connected to the outer wall of the partition plate (15), and the outer wall of the arc-shaped strips (23) being fixedly connected to the outer wall of the fixed frame (11).

5. The inflatable air pressure buffer protection device for a tunnel according to claim 3, wherein: The adjusting device (3) includes an inflation tube (31), an inner wall of the inflation tube (31) being fixedly connected to a valve core (32), an outer wall of the inflation tube (31) being fixedly connected to an adjusting airbag (33), an outer wall of the adjusting airbag (33) being fixedly connected to an elastic band (34), and an outer wall of the elastic band (34) being fixedly connected to a fitting plate (35).

6. The inflatable air pressure buffer protection device for tunnels according to claim 5, wherein: The outer wall of the elastic band (34) is fixedly connected to the outer wall of the arc-shaped strips (23), the outer wall of the elastic band (34) is fixedly connected to one end of the partition plate (15) away from the inflatable airbag (12), the outer wall of the adjusting airbag (33) is fixedly connected to the outer wall of the pressing plate (21), one end of the adjusting airbag (33) away from the pressing plate (21) is fixedly connected to the outer wall of the limiting plate (25), and the outer wall of the inflation tube (31) is fixedly connected to the inner wall of the limiting plate (25), and the inflation tube (31) penetrates through the limiting plate (25).

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