Tunnel construction ventilation structure convenient to disassemble

Abstract

The utility model discloses a tunnel construction ventilation structure convenient to disassemble, and relates to the technical field of ventilation devices. The ventilation pipe is arranged at the top end of the supporting frame; the ventilator is arranged in the ventilation pipe, and ventilation of the tunnel is achieved through the ventilator; the first fixing grooves are formed in the side wall of one end of the ventilation pipe, and the multiple first fixing grooves are formed; the filter plate is arranged in one end of the ventilation pipe; the second fixing grooves are formed in the side wall of one end of the filtering plate, and the multiple second fixing grooves are formed. The device is reasonable and reliable in structure and easy to operate, the filter plate and the ventilation pipe are mounted and dismounted, so that the filter plate can be conveniently replaced or cleaned, harmful gas in the tunnel is accelerated to be discharged, accumulation of the harmful gas in the tunnel is avoided, and the service life of the tunnel is prolonged. And therefore, the ventilation efficiency and convenience of the tunnel construction ventilation structure are improved, and the applicability is wider.

Description

Technical Field

[0001] This utility model relates to the field of ventilation device technology, and more specifically, to a ventilation structure for tunnel construction that is easy to disassemble. Background Technology

[0002] Tunnels are underground structures built into geological strata and are widely used in railway and highway transportation engineering. Because tunnels are typically excavated and constructed within mountains or underground, the construction environment is enclosed, and air circulation is limited, especially in underground tunnels where ventilation conditions are even worse. If air cannot be replaced in time, harmful gases will accumulate. To ensure the safety of construction workers and good ventilation in the construction environment, ventilation equipment is usually used, extending fan systems into the tunnel to achieve effective air replacement through forced ventilation.

[0003] However, existing tunnel construction ventilation systems have limitations during operation. Because tunnel construction generates a large amount of harmful gases, it's difficult to expel these gases quickly enough, leading to their accumulation. This can affect the subsequent work and health of construction workers. Furthermore, while ventilation requires filtering impurities from the harmful gases using filter plates or screens to prevent them from entering the ventilation fan and causing malfunctions, these filters are difficult to replace and clean after prolonged use, easily becoming clogged and affecting subsequent filtration efficiency.

[0004] For example, patent application number 202221685564.X discloses a ventilation device for tunnel construction, including: a storage trough in a fixed base; a fan installed on the fixed base; the fan installed in a dust cover, the dust cover being installed above the fixed base; a noise reduction layer provided on the inner side of the dust cover; and a telescopic pipe installed at the air inlet of the dust cover and detachably connected to the dust cover.

[0005] The ventilation device used for tunnel construction has the following disadvantages: Although a dust cover is installed on the outside of the fan and a noise reduction layer is installed on the inside of the dust cover, it can prevent external dust from entering the fan and causing it to malfunction or accumulate dust. On the other hand, it can absorb the noise generated by the fan, thereby reducing the overall noise of the ventilation device. However, since a large amount of harmful gases are generated during tunnel construction, it is not easy to accelerate the discharge of harmful gases, which can easily cause harmful gases to accumulate, affecting the subsequent work of construction personnel and their health. Furthermore, after long-term use, it is not easy to replace and clean the filter plates or screens, which can easily cause the filter plates or screens to become clogged, affecting the subsequent filtration efficiency.

[0006] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0007] In view of the problems in the related technologies, this utility model proposes a tunnel construction ventilation structure that is easy to disassemble, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0008] Therefore, the specific technical solution adopted by this utility model is as follows:

[0009] A tunnel construction ventilation structure that is easy to disassemble includes: a support frame; a ventilation duct disposed at the top of the support frame; a ventilator disposed inside the ventilation duct, which ventilates the tunnel; a first fixing slot, formed on one side wall of the ventilation duct, and having several such fixing slots; a filter plate disposed inside one end of the ventilation duct; a second fixing slot, formed on one side wall of the filter plate, and having several such second fixing slots; a disassembly assembly disposed between the first and second fixing slots, which connect the first and second fixing slots; a ring fitted around the circumference of one end of the ventilation duct; a flexible duct fitted inside one end of the ring, which allows the flexible duct to engage with the ventilation duct; bolts symmetrically inserted through the outer circumference of the ring and connected to one end of the flexible duct; an acceleration component fitted inside the other end of the flexible duct, which accelerates the ventilation of the tunnel; and a control panel disposed on one side wall of the support frame.

[0010] Furthermore, to facilitate the installation and disassembly of the filter plate and ventilation duct via the disassembly assembly, allowing for convenient replacement or cleaning of the filter plate and preventing clogging after prolonged use that could affect subsequent filtration efficiency, the disassembly assembly improves the installation and disassembly efficiency of the tunnel construction ventilation structure and broadens its applicability. The disassembly assembly includes a fixing component positioned between fixing slot one and fixing slot two. A movable component is located at the bottom inner part of the fixing component. The fixing component includes a connecting block positioned between fixing slot one and fixing slot two. Connecting shafts are symmetrically arranged on the top two side walls of the connecting block. The top two side walls of fixing slot one are symmetrically provided with openings corresponding to the connecting shafts. The bottom two sides of the fixed groove are symmetrically provided with insertion holes 2 that mate with the movable part. The movable part includes a cavity in the bottom of the connecting block. Slider is provided on both sides inside the cavity. A spring is connected between the two sliders. A limit rod is symmetrically provided through one side wall of the slider, and both sides of the limit rod are connected to the inner walls of the two sides of the cavity. A pusher is provided on one side wall of the slider. A square groove is provided on the bottom side wall of the connecting block to mate with the pusher. A connecting hole is provided in the middle of one side wall of the slider to mate with the spring, and the end of the spring is connected to the inside of the connecting hole. A locking block is provided on the other side wall of the slider to mate with the insertion hole 2.

[0011] Furthermore, in order to accelerate the discharge of harmful gases in the tunnel under the action of the accelerator, and avoid the accumulation of harmful gases caused by the slow discharge of harmful gases in the tunnel, which would affect the subsequent work of construction personnel and their health, thereby improving the ventilation efficiency of the tunnel construction ventilation structure, the accelerator includes an accelerator pipe sleeved inside one end of the flexible air duct. The inside of the accelerator pipe is arranged from right to left as a contraction section, a throat, and an expansion section. The inner diameter of the contraction section is smaller than the inner diameter of the expansion section.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model has a reasonable and reliable structure and is easy to operate. Through the combined action of ventilation pipe, ventilator, filter plate, disassembly assembly, ring, flexible air duct and acceleration component, it not only realizes the installation and disassembly between the filter plate and the ventilation pipe, thus facilitating the replacement or cleaning of the filter plate, but also accelerates the discharge of harmful gases in the tunnel, avoiding the accumulation of harmful gases caused by slow discharge in the tunnel, which would affect the subsequent work of construction personnel and their health. In this way, it improves the ventilation efficiency and convenience of the tunnel construction ventilation structure and has wider applicability.

[0014] 2. By setting up disassembly components, the filter plate and ventilation pipe can be installed and disassembled, which makes it easy to replace or clean the filter plate. This avoids the filter plate from becoming clogged after long-term use, which would affect the subsequent filtration efficiency. As a result, the installation and disassembly efficiency of the ventilation structure for tunnel construction is improved, and its applicability is wider.

[0015] 3. By setting up acceleration components, harmful gases in the tunnel can be discharged more quickly, avoiding the accumulation of harmful gases caused by slow discharge in the tunnel, which would affect the subsequent work of construction workers and their health, thereby improving the ventilation efficiency of the tunnel construction ventilation structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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 perspective view of a tunnel construction ventilation structure that is easy to disassemble, according to an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of a tunnel construction ventilation structure that is easy to disassemble according to an embodiment of the present utility model;

[0019] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the ventilation pipe in a tunnel construction ventilation structure that is easy to disassemble, according to an embodiment of the present utility model;

[0021] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle;

[0022] Figure 6 This is a schematic diagram of the filter plate in a tunnel construction ventilation structure that is easy to disassemble, according to an embodiment of the present utility model;

[0023] Figure 7 This is a schematic diagram of the disassembly components in a tunnel construction ventilation structure that is easy to disassemble, according to an embodiment of the present utility model.

[0024] Figure 8 This is a cross-sectional view of a disassembly component in a tunnel construction ventilation structure that is easy to disassemble, according to an embodiment of the present utility model.

[0025] Figure 9 This is a three-dimensional assembly diagram of a disassembly component in a tunnel construction ventilation structure that is easy to disassemble, according to an embodiment of the present utility model.

[0026] Figure 10 This is a schematic diagram of the accelerating component in a tunnel construction ventilation structure that is easy to disassemble, according to an embodiment of the present utility model.

[0027] Figure 11 This is a cross-sectional view of an accelerator component in a tunnel construction ventilation structure that is easy to disassemble, according to an embodiment of the present utility model.

[0028] In the picture:

[0029] 1. Support frame; 2. Ventilation duct; 3. Ventilator; 4. Fixing slot one; 5. Filter plate; 6. Fixing slot two; 7. Disassembly assembly; 701. Fixing component; 7011. Connecting block; 7012. Connecting shaft; 7013. Insertion hole one; 7014. Insertion hole two; 702. Moving part; 7021. Cavity; 7022. Slider; 7023. Spring; 7024. Limiting rod; 7025. Push handle; 7026. Square slot; 7027. Connecting hole; 7028. Locking block; 8. Ring; 9. Flexible duct; 10. Bolt; 11. Accelerating component; 1101. Accelerating tube; 1102. Contraction section; 1103. Throat; 1104. Expansion section; 12. Control panel. Detailed Implementation

[0030] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0031] According to an embodiment of the present invention, a tunnel construction ventilation structure that is easy to disassemble is provided.

[0032] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-11 As shown, the easily disassembled tunnel construction ventilation structure according to an embodiment of the present invention includes: a support frame 1; a ventilation pipe 2 disposed at the top of the support frame 1; a ventilator 3 disposed inside the ventilation pipe 2, wherein in specific application, a fixing plate is provided at the bottom end of the ventilator 3, and the fixing plate is fixedly connected to the inner wall of the ventilation pipe 2; ventilation of the tunnel is achieved through the ventilator 3; a first fixing groove 4 is formed on one side wall of the ventilation pipe 2, and several fixing grooves 4 are provided; a filter plate 5 is disposed inside one end of the ventilation pipe 2; and a second fixing groove 6 is formed on one side wall of the filter plate 5, and several fixing grooves 6 are provided. The disassembly component 7 is located between the first fixing slot 4 and the second fixing slot 6, and the first fixing slot 4 and the second fixing slot 6 are connected by the disassembly component 7; the ring 8 is fitted around the outer circumference of one end of the ventilation pipe 2; the flexible air duct 9 is fitted inside one end of the ring 8, and the ring 8 enables the flexible air duct 9 to cooperate with the ventilation pipe 2; the bolts 10 are symmetrically arranged through the outer circumference of the ring 8 and are connected to one end of the flexible air duct 9; the accelerator 11 is fitted inside the other end of the flexible air duct 9, and the accelerator 11 enables the acceleration of tunnel ventilation; the control panel 12 is located on one side wall of the support frame 1.

[0033] Furthermore, the structure and working principle of ventilation duct 2, ventilation fan 3, control panel 12, flexible duct 9, and bolt 10 are all existing technologies, and will not be elaborated on here.

[0034] In practical applications, the control panel 12 is equipped with a human-machine interface and a PLC programmable logic controller. The human-machine interface is the interaction interface between the operator and the automation system. Its main functions are to display the real-time operating status and input control commands. The PLC is used to execute specific control tasks, such as switching on and off, controlling the speed (frequency) of the fan 3 to achieve air volume control, or acquiring and processing sensor signals.

[0035] In one embodiment, the disassembly assembly 7 includes a fixing member 701 disposed between the fixing groove 4 and the fixing groove 6. A movable member 702 is disposed at the bottom inner part of the fixing member 701. The fixing member 701 includes a connecting block 7011 disposed between the fixing groove 4 and the fixing groove 6. Connecting shafts 7012 are symmetrically disposed on the top two side walls of the connecting block 7011. Insertion holes 7013 symmetrically formed on the top two side walls of the fixing groove 4 to mate with the connecting shafts 7012 are provided. Insertion holes 7014 symmetrically formed on the bottom two side walls of the fixing groove 6 to mate with the movable member 702 are provided. The movable member 702 includes a cavity 7021 formed at the bottom inner part of the connecting block 7011. Slider blocks 7022 are disposed on both sides inside the cavity 7021. A spring 7023 connects the two sliders 7022. Limiting rods 7024 are symmetrically provided through one side wall of each slider 7022, and limit their movement. Both sides of the rod 7024 are connected to the inner walls of both sides of the cavity 7021. One side wall of the slider 7022 is provided with a pusher 7025. The bottom side wall of the connecting block 7011 is provided with a square groove 7026 that cooperates with the pusher 7025. The middle of one side wall of the slider 7022 is provided with a connecting hole 7027 that cooperates with the spring 7023, and the end of the spring 7023 is connected to the inside of the connecting hole 7027. The other side wall of the slider 7022 is provided with a locking block 7028 that penetrates the side wall of the connecting block 7011 and cooperates with the second insertion hole 7014. Under the action of the disassembly component 7, the filter plate 5 and the ventilation pipe 2 can be installed and disassembled. This allows for convenient replacement or cleaning of the filter plate 5, avoiding clogging of the filter plate 5 after long-term use, which would affect the subsequent filtration efficiency. This improves the installation and disassembly efficiency of the tunnel construction ventilation structure and makes it more widely applicable.

[0036] The specific working principle of the disassembly component 7 is as follows: When the filter plate 5 needs to be disassembled, push the pusher 7025 towards the middle of the square groove 7026, and then under the action of the limit rod 7024, the two sliders 7022 move towards the spring 7023. The movement of the two sliders 7022 will squeeze the spring 7023 and drive the two locking blocks 7028 to move towards the spring 7023. When the locking blocks 7028 leave the insertion hole 2 7014, the filter plate 5 can be removed from the ventilation pipe 2 for replacement and cleaning.

[0037] In one embodiment, the aforementioned accelerator 11 includes an accelerator pipe 1101 fitted inside one end of the flexible duct 9. The accelerator pipe 1101 has a contraction section 1102, a throat 1103, and an expansion section 1104 arranged sequentially from right to left inside. The inner diameter of the contraction section 1102 is smaller than the inner diameter of the expansion section 1104, so that under the action of the accelerator 11, harmful gases in the tunnel can be accelerated to be discharged, avoiding the accumulation of harmful gases caused by the slow discharge of harmful gases in the tunnel, which would affect the subsequent work of construction personnel and their health, thereby improving the ventilation efficiency of the tunnel construction ventilation structure.

[0038] The specific working principle of the accelerator 11 is as follows: The harmful gas drawn into the flexible duct 9 by the fan 3 first enters the throat 1103 through the contraction section 1102. Based on Bernoulli's principle, the harmful gas is accelerated into the flexible duct 9 by the contraction section 1102, the throat 1103 and the expansion section 1104, and is then transported to the ventilation pipe 2 for discharge through the flexible duct 9, thereby achieving effective air replacement, increasing the speed of harmful gas discharge, avoiding the accumulation of harmful gas in the tunnel, and thus improving the ventilation efficiency of the tunnel construction ventilation structure.

[0039] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0040] In practical applications, one end of the flexible duct 9 is first placed in the tunnel construction area. Then, the ventilation fan 3 is started via the control panel 12. The ventilation fan 3 will quickly draw the harmful gases generated during tunnel construction into the flexible duct 9 through the accelerator 11. The gases then enter the ventilation duct 2 through the flexible duct 9. Before entering the ventilation duct 2, the harmful gases first pass through the flexible duct 9 into the ring 8. After passing through the filter plate 5, the impurities mixed in the harmful gases are filtered. The filtered gas then enters the ventilation duct 2 for discharge, achieving effective air replacement and thus improving the ventilation efficiency of the tunnel construction ventilation structure. After long-term use, one end of the flexible duct 9 can be removed from the inside of the ring 8 by tightening the bolt 10. Then, the filter plate 5 can be replaced and cleaned by disassembling the assembly 7, thereby improving the installation and disassembly efficiency of the tunnel construction ventilation structure and making it more widely applicable.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tunnel construction ventilation structure which is easy to disassemble, characterized by, Include: Support frame (1); Ventilation pipe (2) is arranged at the top end of the support frame (1); Ventilator (3) is arranged inside the ventilation pipe (2), ventilation of the tunnel is realized through the ventilator (3); Fixed groove one (4) is opened on the side wall of one end of the ventilation pipe (2), and the fixed groove one (4) is provided with a plurality of fixed grooves; Filter plate (5) is arranged inside one end of the ventilation pipe (2); Fixed groove two (6) is opened on the side wall of one end of the filter plate (5), and the fixed groove two (6) is provided with a plurality of fixed grooves; Dismantling assembly (7) is arranged between the fixed groove one (4) and the fixed groove two (6), and the fixed groove one (4) and the fixed groove two (6) are connected through the dismantling assembly (7); The ring (8) is sleeved on the circumference of one end of the ventilation pipe (2); Flexible air pipe (9) is sleeved on one end of the ring (8) inside, and the cooperation of the flexible air pipe (9) and the ventilation pipe (2) is realized through the ring (8); Bolt (10) is symmetrically arranged on the circumference of the ring (8), and one end of the flexible air pipe (9) is connected with the bolt (10); Accelerating part (11) is sleeved on the other end of the flexible air pipe (9) inside, and the acceleration of the tunnel ventilation is realized through the accelerating part (11); Control panel (12) is arranged on one side wall of the support frame (1).

2. A tunnel construction ventilation structure according to claim 1, wherein The dismantling assembly (7) includes a fixing part (701) arranged between the fixed groove one (4) and the fixed groove two (6), and the inner bottom of the fixing part (701) is provided with a movable part (702).

3. A tunnel construction ventilation structure according to claim 2, wherein The fixing part (701) includes a connecting block (7011) arranged between the fixed groove one (4) and the fixed groove two (6), the top two side walls of the connecting block (7011) are symmetrically provided with connecting shafts (7012), and the top two side walls of the fixed groove one (4) are symmetrically provided with insertion holes one (7013) matched with the connecting shafts (7012); The bottom two side walls of the fixed groove two (6) are symmetrically provided with insertion holes two (7014) matched with the movable part (702).

4. A tunnel construction ventilation structure according to claim 3, wherein The movable part (702) includes a cavity (7021) opened in the inner bottom of the connecting block (7011), the inside of the cavity (7021) is provided with a sliding block (7022) on both sides, and the two sliding blocks (7022) are connected with a spring (7023).

5. A tunnel construction ventilation structure according to claim 4, wherein The side wall of the sliding block (7022) is symmetrically provided with a limiting rod (7024), and the two sides of the limiting rod (7024) are connected with the two side walls of the cavity (7021).

6. A tunnel construction ventilation structure according to claim 5, wherein The end side wall of the sliding block (7022) is provided with a push hand (7025), and the bottom side wall of the connecting block (7011) is provided with a square groove (7026) matched with the push hand (7025); The middle part of the side wall of the sliding block (7022) is provided with a connecting hole (7027) matched with the spring (7023), and the end of the spring (7023) is connected with the inside of the connecting hole (7027). The other side wall of the sliding block (7022) is provided with a clamping block (7028) penetrating through the side wall of the connecting block (7011) and matched with the second jack (7014).

7. The easily detachable ventilation structure for tunnel construction according to claim 1, wherein The accelerating member (11) comprises an accelerating tube (1101) sleeved inside one end of the flexible air pipe (9), and the inside of the accelerating tube (1101) is sequentially provided with a converging section (1102), a throat (1103) and a diverging section (1104) from right to left.

8. A tunnel construction ventilation structure according to claim 7, wherein The inside diameter of the converging section (1102) is smaller than the inside diameter of the diverging section (1104).

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