Module combined structure type silencing device for tunnel

Abstract

The utility model relates to the technical field of tunnel noise elimination equipment, in particular to a module combination structure type noise elimination device for a tunnel, which comprises four outer telescopic frames, adjacent outer telescopic frames are mutually connected in a sliding manner, a plurality of inner telescopic frames are arranged among the outer telescopic frames and are in a linear array, and the inner telescopic frames are connected with the outer telescopic frames in a sliding manner. And one side of each outer telescopic frame is fixedly connected with a mounting plate, first mounting hoops are mounted between the inner telescopic frames and the outer telescopic frames, and second mounting hoops are mounted among the multiple inner telescopic frames. Compared with the prior art, the telescopic device has the advantages that the first telescopic rod, the second telescopic rod, the third telescopic rod and the fourth telescopic rod which can slide mutually are arranged, and the outer telescopic frame and the outer telescopic frame can be adaptively adjusted according to the sizes of the inner walls of different ventilation pipelines, so that the telescopic device can be better adapted to various different ventilation pipelines; and different groups of third telescopic rods and fourth telescopic rods can be arranged to mount modular silencers with different sizes and numbers, so that the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of tunnel silencing equipment technology, and in particular to a modular combination structure silencing device for tunnels. Background Technology

[0002] For ventilation in long tunnels, vertical or inclined shafts and axial flow fan ventilation systems are common mechanical ventilation methods. The axial flow fans in this ventilation system have a large structure, with impeller diameters of over 2m and fan speeds of over 1450RPM. The noise pressure at 1m from the fan outlet can reach over 130dB(A). The noise generated by the fan operation will affect the physical and mental health of residents near the fan room and tunnel workers. Using large silencers is the main measure to effectively reduce fan noise.

[0003] Some existing modular combination structure silencers are limited in size by the outer frame and cannot be adapted to the size of the ventilation tunnel, resulting in poor adaptability and inconvenience in use.

[0004] To address this issue, this utility model proposes a modular combination structure silencing device for tunnels. Utility Model Content

[0005] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0006] Therefore, one objective of this utility model is to propose a modular combination structure silencing device for tunnels to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0007] To achieve the above objectives, one embodiment of this utility model provides a modular combination structure silencing device for tunnels, comprising four external telescopic frames, adjacent external telescopic frames being slidably connected to each other, a plurality of internal telescopic frames being installed between the external telescopic frames, the plurality of internal telescopic frames being arranged in a linear array, a mounting plate being fixedly connected to one side of each external telescopic frame, a first mounting hoop being installed between the internal telescopic frames and the external telescopic frames, a second mounting hoop being installed between the plurality of internal telescopic frames, and a modular silencer being fixedly connected between the first mounting hoop and the second mounting hoop.

[0008] Preferably, in any of the above embodiments, the external telescopic frame includes a connecting block, and a first telescopic rod and a second telescopic rod are fixedly connected to both sides of the connecting block, respectively.

[0009] Preferably, in any of the above schemes, the shapes of the first telescopic rod and the second telescopic rod on one side are adapted to each other, and the first telescopic rod and the second telescopic rod on two adjacent outer telescopic frames are slidably connected to each other.

[0010] Preferably, in any of the above embodiments, the mounting plate is fixedly connected to one side of the connecting block, the mounting plate is L-shaped, and two mounting holes are respectively opened on both sides of the mounting plate.

[0011] Preferably, in any of the above embodiments, the inner telescopic frame includes a third telescopic rod and a fourth telescopic rod, the shapes of one side of the third telescopic rod and the fourth telescopic rod are adapted to each other, and the third telescopic rod and the fourth telescopic rod are slidably connected to each other.

[0012] Preferably, in any of the above embodiments, a collar is fixedly connected to one side of both the third and fourth telescopic rods, the inner surface of the collar is adapted to the outer surface of the first and second telescopic rods, and the inner surface of the collar is slidably connected to the outer surface of the first and second telescopic rods.

[0013] Preferably, in any of the above solutions, the inner surface of the first mounting hoop is adapted to the outer surface of the first telescopic rod and the second telescopic rod, and the inner surface of the first mounting hoop is slidably connected to the outer surface of the first telescopic rod and the second telescopic rod.

[0014] Preferably, one side of the first mounting hoop is threaded with a locking bolt, and one side of the locking bolt extends into the interior of the first mounting hoop and fits against the first telescopic rod and the second telescopic rod.

[0015] Preferably, one side of the first mounting hoop is fixedly connected to a first fixing plate, and two first fixing holes are respectively opened on both sides of the first fixing plate.

[0016] Preferably, in any of the above schemes, the inner surface of the second mounting hoop is slidably connected to the outer surfaces of the third and fourth telescopic rods, two second fixing plates are fixedly connected to both sides of the second mounting hoop, and second fixing holes are opened on both sides of the second fixing plates. The modular muffler is fixedly connected between the first and second mounting hoops by bolts.

[0017] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0018] By setting up first, second, third, and fourth telescopic rods that can slide against each other, the external telescopic frame and external telescopic frame can be adaptively adjusted according to the different inner wall sizes of ventilation ducts, thus better adapting to various different ventilation ducts. Different numbers of third and fourth telescopic rods can be set to install modular silencers of different sizes and quantities, making it convenient to use.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the overall structure according to an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the external telescopic frame according to an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the first mounting hoop according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the second mounting hoop according to an embodiment of the present utility model.

[0025] In the diagram: 1-Outer telescopic frame, 101-Connecting block, 102-First telescopic rod, 103-Second telescopic rod, 2-Inner telescopic frame, 201-Third telescopic rod, 202-Fourth telescopic rod, 203-Loop, 3-Mounting plate, 301-Mounting hole, 4-First mounting clamp, 401-Locking bolt, 402-First fixing plate, 403-First fixing hole, 5-Second mounting clamp, 501-Second fixing plate, 502-Second fixing hole, 6-Modular muffler. Detailed Implementation

[0026] like Figures 1 to 4 As shown, a modular combination structure silencer for tunnels includes four external telescopic frames 1, adjacent external telescopic frames 1 are slidably connected to each other, and several internal telescopic frames 2 are installed between the external telescopic frames 1 in a linear array. Each external telescopic frame 1 has a mounting plate 3 fixedly connected to one side. A first mounting hoop 4 is installed between the internal telescopic frames 2 and the external telescopic frames 1, and a second mounting hoop 5 is installed between the several internal telescopic frames 2. A modular silencer 6 is fixedly connected between the first mounting hoop 4 and the second mounting hoop 5.

[0027] The external telescopic frame 1 includes a connecting block 101, and a first telescopic rod 102 and a second telescopic rod 103 are fixedly connected to both sides of the connecting block 101, respectively.

[0028] The shapes of the first telescopic rod 102 and the second telescopic rod 103 on one side are adapted to each other, and the first telescopic rod 102 and the second telescopic rod 103 on two adjacent outer telescopic frames 1 are slidably connected to each other.

[0029] The mounting plate 3 is fixedly connected to one side of the connecting block 101. The mounting plate 3 is L-shaped, and two mounting holes 301 are opened on both sides of the mounting plate 3. The four external telescopic brackets 1 are installed on the inner wall of the ventilation duct through the mounting holes 301 and bolts, thereby determining the position and length of the first telescopic rod 102 and the second telescopic rod 103. The present invention shows a set of silencers, which can be set in multiple linear arrays on the inner wall of the ventilation duct.

[0030] The inner telescopic frame 2 includes a third telescopic rod 201 and a fourth telescopic rod 202. The shapes of one side of the third telescopic rod 201 and the fourth telescopic rod 202 are adapted to each other, and the third telescopic rod 201 and the fourth telescopic rod 202 are slidably connected to each other.

[0031] A collar 203 is fixedly connected to one side of both the third telescopic rod 201 and the fourth telescopic rod 202. The inner surface of the collar 203 is adapted to the outer surface of the first telescopic rod 102 and the second telescopic rod 103. The inner surface of the collar 203 is slidably connected to the outer surface of the first telescopic rod 102 and the second telescopic rod 103. The length and spacing of the third telescopic rod 201 and the fourth telescopic rod 202 are respectively limited by the outer telescopic frame 1 and the position of the modular muffler 6 after installation. Different numbers of third telescopic rods 201 and fourth telescopic rods 202 can be set to install modular mufflers 6 of different sizes and quantities.

[0032] The inner surface of the first mounting clamp 4 is adapted to the outer surface of the first telescopic rod 102 and the second telescopic rod 103, and the inner surface of the first mounting clamp 4 is slidably connected to the outer surface of the first telescopic rod 102 and the second telescopic rod 103.

[0033] A locking bolt 401 is threadedly connected to one side of the first mounting clamp 4. One side of the locking bolt 401 extends into the interior of the first mounting clamp 4 and fits against the first telescopic rod 102 and the second telescopic rod 103. Tightening the locking bolt 401 fixes the position of the first mounting clamp 4 through the friction between the locking bolt 401 and the first telescopic rod 102 and the second telescopic rod 103.

[0034] A first fixing plate 402 is fixedly connected to one side of the first mounting clamp 4, and two first fixing holes 403 are respectively opened on both sides of the first fixing plate 402.

[0035] The inner surface of the second mounting hoop 5 is slidably connected to the outer surfaces of the third telescopic rod 201 and the fourth telescopic rod 202. Two second fixing plates 501 are fixedly connected to both sides of the second mounting hoop 5. The second fixing plates 501 have second fixing holes 502 on both sides. The modular muffler 6 is fixedly connected between the first mounting hoop 4 and the second mounting hoop 5 by bolts. The specific structure and working principle of the modular muffler 6 in this utility model are the same as the technical features disclosed in CN211144925U. Therefore, this part will not be repeated in this utility model.

[0036] Compared with the prior art, the present invention has the following advantages:

[0037] By setting up a first telescopic rod 102, a second telescopic rod 103, a third telescopic rod 201, and a fourth telescopic rod 202 that can slide against each other, the outer telescopic frame 1 and the outer telescopic frame 2 can be adjusted to adapt to different ventilation duct inner wall sizes, thereby better adapting to various different ventilation ducts. Different numbers of third telescopic rods 201 and fourth telescopic rods 202 can be set to install modular silencers 6 of different sizes and quantities, making it convenient to use.

Claims

1. A modular, combined structure type silencer for a tunnel, characterized in that: The utility model provides a modularized silencer, it includes four outer telescopic frame (1), adjacent telescopic frame (1) mutually slide connection, install a plurality of inner telescopic frame (2) between telescopic frame (1), a plurality of inner telescopic frame (2) are linear array, one side of each telescopic frame (1) is fixedly connected with an installation plate (3), install first mounting hoop (4) between inner telescopic frame (2) and telescopic frame (1), install second mounting hoop (5) between a plurality of inner telescopic frame (2), first mounting hoop (4) and second mounting hoop (5) between fixedly connected with modularized silencer (6).

2. A modular, combined structure muffler for a tunnel according to claim 1, characterized in that: The outer telescopic frame (1) includes a connecting block (101), the first telescopic rod (102) and the second telescopic rod (103) are fixedly connected to the both sides of the connecting block (101) respectively.

3. A modular, combined structure muffler for a tunnel according to claim 2, characterized in that: The first telescopic rod (102) and the second telescopic rod (103) on one side of the shape are matched with each other, and the first telescopic rod (102) and the second telescopic rod (103) on adjacent two outer telescopic frames (1) are slidably connected with each other.

4. A modular, combined structure muffler for a tunnel according to claim 3, characterized in that: The installation plate (3) is fixedly connected to one side of the connecting block (101), the installation plate (3) is L-shaped, and two mounting holes (301) are formed in the two sides of the installation plate (3) respectively.

5. A modular, combined structure muffler for a tunnel according to claim 4, characterized in that: The inner telescopic frame (2) includes a third telescopic rod (201) and a fourth telescopic rod (202), the third telescopic rod (201) and the fourth telescopic rod (202) on one side of the shape are matched with each other, and the third telescopic rod (201) and the fourth telescopic rod (202) are slidably connected with each other.

6. A modular, combined structure muffler for a tunnel according to claim 5, characterized in that: The third telescopic rod (201) and the fourth telescopic rod (202) on one side are fixedly connected with a sleeve ring (203), the inner surface of the sleeve ring (203) is matched with the outer surface of the first telescopic rod (102) and the second telescopic rod (103), and the inner surface of the sleeve ring (203) is slidably connected to the outer surface of the first telescopic rod (102) and the second telescopic rod (103).

7. A modular, combined structure muffler for a tunnel according to claim 6, characterized in that: The inner surface of the first mounting hoop (4) is matched with the outer surface of the first telescopic rod (102) and the second telescopic rod (103), and the inner surface of the first mounting hoop (4) is slidably connected to the outer surface of the first telescopic rod (102) and the second telescopic rod (103).

8. A modular, combined structure muffler for a tunnel according to claim 7, characterized in that: A locking bolt (401) is threadedly connected to one side of the first mounting hoop (4), one side of the locking bolt (401) penetrates to the inside of the first mounting hoop (4) and is attached to the first telescopic rod (102) and the second telescopic rod (103).

9. A modular, combined structure muffler for a tunnel according to claim 8, characterized in that: A first fixing plate (402) is fixedly connected to one side of the first mounting hoop (4), and two first fixing holes (403) are formed in the two sides of the first fixing plate (402) respectively.

10. A modular, combined structure muffling device for tunnels according to claim 9, characterized in that: The inner surface of the second mounting hoop (5) is slidingly connected to the outer surfaces of the third telescopic rod (201) and the fourth telescopic rod (202), two second fixing plates (501) are fixedly connected to the two sides of the second mounting hoop (5) respectively, second fixing holes (502) are arranged on the two sides of the second fixing plate (501) respectively, and the modular muffler (6) is fixedly connected between the first mounting hoop (4) and the second mounting hoop (5) through bolts.

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