Combined ventilating duct for extra-long tunnel

Abstract

The utility model discloses an extra-long tunnel combined ventilation pipeline which comprises two suspension assemblies, a pipeline assembly is arranged between the two suspension assemblies, each suspension assembly comprises an installation frame, a groove is formed in the outer wall of one side of the top of each installation frame, a left-right-hand screw rod is installed in each groove through a bearing, and a nut head is integrally formed at one end of each left-right-hand screw rod. A supporting block is mounted on the outer wall of one side of the top of the mounting frame through a bolt, two sliding blocks are in threaded connection with the exterior of the left-right-handed screw rod, the mounting frame is slidably sleeved with the sliding blocks, and clamping blocks are welded to the outer walls of one sides of the tops of the sliding blocks; after a pipeline is placed on the supporting block, the nut head can be rotated by a tool, and then the left-handed screw rod and the right-handed screw rod drive the two sliding blocks to move in opposite directions, so that the two clamping blocks clamp a pipeline assembly, the pipeline assembly is rapidly clamped and fixed, the difficulty of fixing the ventilating pipeline in a tunnel is reduced, and the pipeline construction speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel ventilation, and particularly relates to a combined ventilation duct for extra-long tunnels. Background Art

[0002] To accelerate the air replacement inside and outside the tunnel and improve the air quality inside the tunnel, various methods and facilities are adopted, mainly referring to the setting of mechanical ventilation, that is, blowing fresh air at one end with a machine, diluting and squeezing out the polluted air longitudinally along the tunnel. When the ventilation duct is used in the tunnel, the ventilation duct needs to be fixed in the tunnel.

[0003] For example, a combined ventilation duct for extra-long tunnels with the application number CN201921937673.4 and the authorization announcement date of July 28, 2020, includes a duct. A groove is opened in the middle of one side of the duct. A chute is opened in the middle of the bottom end of the inner wall of the groove. The two sides of the inner wall of the chute are respectively slidably connected with the two sides of a slider. The middle of one side of the slider is fixedly connected with one end of a push rod. The other end of the push rod is fixedly connected with the middle of one side of a return plate. In the combined ventilation duct for extra-long tunnels of the utility model, a return plate is provided. Slide the slider, the slider drives the push rod to move, the push rod drives the return plate to move, and the return plate drives the cleaning brush to move, so as to clean the inner wall of the duct, which is convenient for maintaining good ventilation of the duct. The dust on the duct will fall to the bottom of the inner wall of the duct under the action of gravity. Then slide the slider, the slider drives the dust collection box to move, and the dust collection box drives the scraper to move, so as to collect the dust into the dust collection box, which is convenient for the unified collection and treatment of dust.

[0004] The ducts inside the tunnel will be supported by pipe supports, but this installation structure requires the use of multiple bolts to additionally fix the ducts, and the installation steps are relatively cumbersome, resulting in time-consuming and laborious installation of the ventilation ducts. Therefore, it is urgent to design a combined ventilation duct for extra-long tunnels to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a combined ventilation duct for extra-long tunnels to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A combined ventilation duct for extra-long tunnels, comprising two suspension components, with a duct component arranged between the two suspension components. The suspension component includes a mounting frame, and a groove is formed on the outer wall of one side of the top of the mounting frame. A left-right screw rod is installed in the groove through a bearing. One end of the left-right screw rod is integrally formed with a nut head. A support block is installed on the outer wall of one side of the top of the mounting frame through bolts. Two sliding blocks are threadedly connected to the outer part of the left-right screw rod, and the sliding blocks are slidably sleeved on the outside of the mounting frame. A clamping block is welded to the outer wall of one side of the top of the sliding block. Connecting pieces are installed on the outer walls of both sides of the top of the mounting frame through bolts.

[0008] Further, sliding grooves are formed on the outer walls of both sides of the mounting frame, and the sliding blocks are slidably connected inside the sliding grooves.

[0009] Further, an oil storage tank is installed on the outer wall of one side of the bottom of the mounting frame through bolts, and an adjusting bolt is installed at the center of the bottom of the oil storage tank through a bearing.

[0010] Further, a piston plate is threadedly connected to the outer part of the adjusting bolt, and the piston plate is slidably connected inside the oil storage tank.

[0011] Further, the connecting piece includes an installation cylinder, a piston rod is slidably connected inside the installation cylinder, and a flange plate is welded to the top end of the piston rod.

[0012] Further, a connecting pipe is inserted into the outer wall of one side of the installation cylinder, and the other end of the connecting pipe extends into the oil storage tank.

[0013] Further, the duct component includes a ventilation duct. One end of the ventilation duct is provided with a plug-in groove, and the other end of the ventilation duct is integrally formed with a plug-in end, and one end of the plug-in end is inserted into the plug-in groove.

[0014] In the above technical solution, for a combined ventilation duct for extra-long tunnels provided by the present utility model, the beneficial effects are as follows:

[0015] (1) By setting the left-right screw rod, nut head, sliding block and clamping block, after placing the duct on the support block, the nut head can be rotated with a tool, and then the left-right screw rod will drive the two sliding blocks to move towards each other, so that the two clamping blocks clamp the duct component, realizing quick clamping and fixing of the duct component, reducing the difficulty of fixing the ventilation duct in the tunnel, and accelerating the speed of duct construction.

[0016] (2) By means of the provided connecting piece, fuel tank, adjusting bolt and piston plate, the suspension assembly is installed on the tunnel. Subsequently, the adjusting bolt can be rotated with a tool. Then the piston plate will squeeze the hydraulic oil inside the fuel tank, and the hydraulic oil will flow into the space between the piston rod and the mounting cylinder through the connecting pipe, so that the hydraulic oil fills into the connecting piece. Then the total length of the connecting piece will change, meeting the support requirements for the ventilation duct at different positions of the tunnel. Moreover, the filling of the hydraulic oil can endow the connecting piece with strong resilience. When strong wind blows into the duct and causes large vibrations, this structure can reduce the downward pressure of the duct on the suspension assembly, avoiding the problem of the suspension assembly detaching due to vibrations.

[0017] (3) By means of the provided insertion end and insertion slot, when splicing two adjacent ventilation ducts together, the cooperation of the insertion end and the insertion slot can make the splicing of two adjacent duct components more tight, ensuring the sealing performance between the ventilation ducts. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure provided for an embodiment of a combined ventilation duct for an extra-long tunnel of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the suspension assembly provided for an embodiment of a combined ventilation duct for an extra-long tunnel of the present invention.

[0021] Figure 3 It is a schematic diagram of the planar structure of the mounting rack provided for an embodiment of a combined ventilation duct for an extra-long tunnel of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the connecting rack provided for an embodiment of a combined ventilation duct for an extra-long tunnel of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the duct component provided for an embodiment of a combined ventilation duct for an extra-long tunnel of the present invention.

[0024] Description of the Reference Numerals:

[0025] 1. Suspension assembly; 2. Pipeline assembly; 3. Mounting frame; 4. Chute; 5. Groove; 6. Left and right hand screw rod; 7. Oil storage tank; 8. Sliding block; 9. Clamping block; 10. Nut head; 11. Connecting piece; 12. Support block; 13. Piston plate; 14. Adjusting bolt; 15. Mounting cylinder; 16. Piston rod; 17. Flange; 18. Connecting pipe; 19. Ventilation pipe; 20. Insertion groove; 21. Insertion end. Detailed implementation mode

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] As Figures 1-5 shown, a long tunnel combined ventilation pipe provided by an embodiment of the present invention includes two suspension assemblies 1. A pipeline assembly 2 is arranged between the two suspension assemblies 1. The suspension assembly 1 includes a mounting frame 3. A groove 5 is opened on the outer wall of one side of the top of the mounting frame 3. A left and right hand screw rod 6 is installed in the groove 5 through a bearing. A nut head 10 is integrally formed at one end of the left and right hand screw rod 6. A support block 12 is installed on the outer wall of one side of the top of the mounting frame 3 through a bolt. Two sliding blocks 8 are threadedly connected to the outside of the left and right hand screw rod 6. The sliding blocks 8 are slidably sleeved on the outside of the mounting frame 3. A clamping block 9 is welded to the outer wall of one side of the top of the sliding block 8. Connecting pieces 11 are installed on the outer walls of both sides of the top of the mounting frame 3 through bolts.

[0028] Specifically, in this embodiment, it includes two suspension assemblies 1. A pipeline assembly 2 is arranged between the two suspension assemblies 1. The suspension assembly 1 includes a mounting frame 3. A groove 5 is opened on the outer wall of one side of the top of the mounting frame 3. A left and right hand screw rod 6 is installed in the groove 5 through a bearing. A nut head 10 is integrally formed at one end of the left and right hand screw rod 6. A support block 12 is installed on the outer wall of one side of the top of the mounting frame 3 through a bolt. The support block 12 is made of rubber, which can reduce the friction between the ventilation pipe 19 and the mounting frame 3. Two sliding blocks 8 are threadedly connected to the outside of the left and right hand screw rod 6. The sliding blocks 8 are slidably sleeved on the outside of the mounting frame 3. A clamping block 9 is welded to the outer wall of one side of the top of the sliding block 8. After placing the ventilation pipe 19 on the support block 12, the nut head 10 can be rotated with a tool. Subsequently, the left and right hand screw rod 6 will drive the two sliding blocks 8 to move towards each other, so that the two clamping blocks 9 clamp the pipeline assembly 2, realizing quick clamping and fixing of the pipeline assembly 2. Connecting pieces 11 are installed on the outer walls of both sides of the top of the mounting frame 3 through bolts.

[0029] A combined ventilation duct for extra-long tunnels provided by the utility model. After placing the duct on the support block 12, a tool can be used to rotate the nut head 10. Subsequently, the left and right threaded screw rod 6 will drive the two sliding blocks 8 to move towards each other, so that the two clamping blocks 9 clamp the duct assembly 2, realizing the quick clamping and fixing of the duct assembly 2, reducing the difficulty of fixing the ventilation duct in the tunnel, and accelerating the speed of duct construction.

[0030] In an embodiment provided by the utility model, as Figures 2-3 shown, sliding grooves 4 are provided on the outer walls of both sides of the mounting frame 3. The sliding grooves 4 can guide the movement of the sliding blocks 8, and the sliding blocks 8 are slidably connected inside the sliding grooves 4.

[0031] In another embodiment provided by the utility model, as Figures 3-4 shown, an oil storage tank 7 is installed on the outer wall of one side of the bottom of the mounting frame 3 through bolts. Hydraulic oil is stored inside the oil storage tank 7, and an adjusting bolt 14 is installed at the center of the bottom of the oil storage tank 7 through a bearing. A piston plate 13 is threadedly connected to the outside of the adjusting bolt 14, and the piston plate 13 is slidably connected inside the oil storage tank 7. The connecting member 11 includes an installation cylinder 15. A piston rod 16 is slidably connected inside the installation cylinder 15. When placing the ventilation pipe 19 on the support block 12, a tool can be used to rotate the adjusting bolt 14. Subsequently, the piston plate 13 will squeeze the hydraulic oil inside the oil storage tank 7, and the hydraulic oil will flow into the space between the piston rod 16 and the installation cylinder 15 through the connecting pipe 18, so that the hydraulic oil fills the connecting member 11. Then the total length of the connecting member 11 will change, meeting the support requirements for the ventilation duct at different positions in the tunnel. Moreover, the filling of the hydraulic oil can make the connecting member 11 have strong resilience. When the wind blows into the duct and causes large vibrations, this structure can reduce the downward pressure of the duct on the suspension assembly 1, avoiding the problem that the suspension assembly 1 detaches due to vibrations. And a flange plate 17 is welded to the top end of the piston rod 16. The flange plate 17 cooperates with bolts, enabling the connecting member 11 to be installed on the inner wall of the tunnel. A connecting pipe 18 is inserted into the outer wall of one side of the installation cylinder 15, and the other end of the connecting pipe 18 extends into the oil storage tank 7.

[0032] In still another embodiment provided by the utility model, as Figure 5 shown, the duct assembly 2 includes a ventilation pipe 19. A plug-in groove 20 is provided at one end of the ventilation pipe 19, and a plug-in end 21 is integrally formed at the other end of the ventilation pipe 19. Due to the cooperation of the plug-in end 21 and the plug-in groove 20, the splicing of adjacent two duct assemblies 2 is more tight, ensuring the sealing performance between the ventilation ducts, and the plug-in end 21 is inserted into the plug-in groove 20 at one end.

[0033] Embodiment 1

[0034] A combined ventilation duct for extra-long tunnels, comprising two suspension components 1. A duct component 2 is arranged between the two suspension components 1. The suspension component 1 includes a mounting frame 3. A groove 5 is formed in the outer wall of one side of the top of the mounting frame 3. A left-right threaded screw rod 6 is installed in the groove 5 through a bearing. A nut head 10 is integrally formed at one end of the left-right threaded screw rod 6. A support block 12 is installed on the outer wall of one side of the top of the mounting frame 3 through bolts. The support block 12 is made of rubber, which can reduce the friction between the ventilation duct 19 and the mounting frame 3. Two sliding blocks 8 are threadedly connected to the outside of the left-right threaded screw rod 6, and the sliding blocks 8 are slidably sleeved on the outside of the mounting frame 3. A clamping block 9 is welded to the outer wall of one side of the top of the sliding block 8. After the ventilation duct 19 is placed on the support block 12, the nut head 10 can be rotated with a tool. Subsequently, the left-right threaded screw rod 6 will drive the two sliding blocks 8 to move towards each other, so that the two clamping blocks 9 clamp the duct component 2, realizing the quick clamping and fixing of the duct component 2. Connecting pieces 11 are installed on the outer walls of both sides of the top of the mounting frame 3 through bolts.

[0035] Embodiment 2

[0036] This embodiment makes further limitations on the basis of Embodiment 1. Among them, sliding grooves 4 are formed on the outer walls of both sides of the mounting frame 3. The sliding grooves 4 can guide the movement of the sliding blocks 8, and the sliding blocks 8 are slidably connected inside the sliding grooves 4; an oil storage tank 7 is installed on the outer wall of one side of the bottom of the mounting frame 3 through bolts. Hydraulic oil is stored inside the oil storage tank 7, and an adjusting bolt 14 is installed at the center of the bottom of the oil storage tank 7 through a bearing. A piston plate 13 is threadedly connected to the outside of the adjusting bolt 14, and the piston plate 13 is slidably connected inside the oil storage tank 7. The connecting piece 11 includes a mounting cylinder 15. A piston rod 16 is slidably connected inside the mounting cylinder 15. When the ventilation duct 19 is placed on the support block 12, the adjusting bolt 14 can be rotated with a tool. Subsequently, the piston plate 13 will squeeze the hydraulic oil inside the oil storage tank 7, and the hydraulic oil will flow into the space between the piston rod 16 and the mounting cylinder 15 through the connecting pipe 18, so that the hydraulic oil fills into the connecting piece 11. Then the total length of the connecting piece 11 will change, meeting the support requirements of the ventilation duct at different positions in the tunnel. Moreover, the filling of the hydraulic oil can make the connecting piece 11 have strong resilience. When the wind blows into the duct and causes large vibrations, this structure can reduce the downward pressure of the duct on the suspension component 1, avoiding the problem that the suspension component 1 is separated due to vibration. The top of the piston rod 16 is welded with a flange plate 17. The flange plate 17 cooperates with bolts, enabling the connecting piece 11 to be installed on the inner wall of the tunnel. A connecting pipe 18 is inserted into the outer wall of one side of the mounting cylinder 15, and the other end of the connecting pipe 18 extends into the oil storage tank 7; the duct component 2 includes a ventilation duct 19. A socket groove 20 is formed at one end of the ventilation duct 19, and a socket end 21 is integrally formed at the other end of the ventilation duct 19. Due to the cooperation of the socket end 21 and the socket groove 20, the splicing of two adjacent duct components 2 is more tight, ensuring the sealing performance between the ventilation ducts, and the socket end 21 is inserted into the socket groove 20.

[0037] Working principle: When using this device, the suspension assembly 1 can be first installed on the inner wall of the tunnel. In this process, bolts can be first passed through the flange 17, and then the bolts can be fixed at the corresponding positions of the tunnel. Subsequently, the pipeline can be passed through the suspension assembly 1. In this process, the ventilation pipe 19 can be first placed on the support block 12, and then the nut head 10 can be rotated with a tool. Subsequently, the left and right threaded screw rod 6 will drive the two sliding blocks 8 to move towards each other, so that the two clamping blocks 9 clamp the pipeline assembly 2, realizing the quick clamping and fixing of the pipeline assembly 2. At the same time, when the ventilation pipe 19 is placed on the support block 12, the adjusting bolt 14 can be rotated with a tool. Subsequently, the piston plate 13 will squeeze the hydraulic oil in the oil storage tank 7, and the hydraulic oil will flow into the space between the piston rod 16 and the mounting cylinder 15 through the connecting pipe 18, so that the hydraulic oil fills into the connecting piece 11. Then the total length of the connecting piece 11 will change, meeting the support requirements for the ventilation pipeline at different positions in the tunnel. Moreover, the filling of the hydraulic oil can make the connecting piece 11 have strong resilience. When the wind blows into the pipeline and causes large vibrations, this structure can reduce the downward pressure of the pipeline on the suspension assembly 1, avoiding the problem that the suspension assembly 1 detaches due to vibrations. After that, the above steps can be repeated to install other pipelines. When installing other pipelines, due to the cooperation of the insertion end 21 and the insertion slot 20, the splicing of two adjacent pipeline assemblies 2 is more tight, ensuring the sealing performance between the ventilation pipelines.

[0038] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A combined ventilation duct for an extra-long tunnel, comprising two suspension components (1), characterized in that, A pipe assembly (2) is provided between the two suspension assemblies (1). The suspension assembly (1) includes a mounting bracket (3). A groove (5) is formed in the outer wall of one side of the top of the mounting bracket (3), and a left - and - right - hand screw rod (6) is installed in the groove (5) through a bearing. A nut head (10) is integrally formed at one end of the left - and - right - hand screw rod (6). A support block (12) is installed on the outer wall of one side of the top of the mounting bracket (3) through bolts. Two sliding blocks (8) are threadedly connected to the outer part of the left - and - right - hand screw rod (6), and the sliding blocks (8) are slidably sleeved on the outside of the mounting bracket (3). A clamping block (9) is welded to the outer wall of one side of the top of the sliding block (8). Connecting pieces (11) are installed on the outer walls of both sides of the top of the mounting bracket (3) through bolts.

2. The combined ventilation duct for extra-long tunnels according to claim 1, characterized in that, Chute grooves (4) are formed in the outer walls of both sides of the mounting bracket (3), and the sliding blocks (8) are slidably connected to the inside of the chute grooves (4).

3. The combined ventilation duct for extra-long tunnels according to claim 1, characterized in that, An oil storage tank (7) is installed on the outer wall of one side of the bottom of the mounting bracket (3) through bolts, and an adjusting bolt (14) is installed at the center of the bottom of the oil storage tank (7) through a bearing.

4. The combined ventilation duct for extra-long tunnels according to claim 3, characterized in that, A piston plate (13) is threadedly connected to the outer part of the adjusting bolt (14), and the piston plate (13) is slidably connected to the inside of the oil storage tank (7).

5. The combined ventilation duct for extra-long tunnels according to claim 3, characterized in that, The connecting piece (11) includes an installation cylinder (15). A piston rod (16) is slidably connected to the inside of the installation cylinder (15), and a flange plate (17) is welded to the top end of the piston rod (16).

6. The combined ventilation duct for extra-long tunnels according to claim 5, characterized in that, A connecting pipe (18) is inserted into the outer wall of one side of the installation cylinder (15), and the other end of the connecting pipe (18) extends into the oil storage tank (7).

7. The combined ventilation duct for extra-long tunnels according to claim 1, characterized in that The pipe assembly (2) includes a ventilation pipe (19). A plug - in slot (20) is formed at one end of the ventilation pipe (19). A plug - in end (21) is integrally formed at the other end of the ventilation pipe (19), and one end of the plug - in end (21) is inserted into the plug - in slot (20).

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