Ventilation structure in subway tunnel

Abstract

The utility model discloses a ventilation structure in a subway tunnel, which relates to the technical field of tunnel ventilation and comprises a ventilation box, an induced draft fan is arranged at one end of the ventilation box, a fixed seat is arranged at the upper end of the ventilation box, an air cylinder is arranged at one end of the fixed seat, and a movable seat is arranged at the output end of the air cylinder. By the adoption of the structure, the output end of the air cylinder is connected with the movable seat, the movable seat slides in the ventilation box, the brush plate on the movable seat moves on the inclined filter screen in the ventilation box, the brush plate is tightly attached to the filter screen under the action of the spring, dust on the filter screen can be cleaned at regular intervals, the dust falls into the collection box to be collected, and the dust removal efficiency is improved. The filter screen is prevented from being blocked, the filter screen can be used for a long time, the filter screen does not need to be manually and regularly disassembled for cleaning or replacing, the maintenance difficulty is reduced, and the use cost is also reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel ventilation, and in particular relates to a ventilation structure in a subway tunnel. Background Art

[0002] With the acceleration of urbanization, subway, as an important part of modern urban transportation, has received increasing attention for its construction and development. As the core component of the subway system, the reasonable design of the ventilation structure of subway tunnel is of great significance to ensure the safe operation of the subway system and improve the comfort of passengers.

[0003] For example, a Chinese patent with publication number CN208718981U discloses a ventilation device for a subway tunnel, which belongs to the technical field of tunnel ventilation equipment, and includes an induced draft fan, a connecting square rotary circle, an adjusting device and a filtering device; a connecting square rotary circle is arranged at the left end of the induced draft fan; an adjusting device is arranged at the left end of the connecting square rotary circle; and a filtering device is arranged at the left end of the adjusting device.

[0004] The above-mentioned ventilation device ensures the ventilation effect of the map tunnel, but there are still some shortcomings that need to be improved. As the ventilation device runs for a long time, the filter screen inside it will often be gradually blocked due to the accumulation of dust and impurities, thereby affecting the ventilation effect and the normal operation of the equipment. When dealing with the problem of filter screen blockage, the existing method often requires removing the filter screen from the ventilation box and replacing it with a new screen. This not only increases the complexity and difficulty of maintenance, but also the frequent replacement of filter screens also significantly increases the cost of use. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a ventilation structure in a subway tunnel to solve the problems in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A ventilation structure in a subway tunnel comprises a ventilation box, wherein an induced draft fan is arranged at one end of the ventilation box, a fixed seat is arranged at the upper end of the ventilation box, a cylinder is arranged at one end of the fixed seat, a movable seat is arranged at the output end of the cylinder, the movable seat is a cavity structure, a spring is arranged at one end of the movable seat, a brush plate is arranged at one end of the spring, a filter screen is arranged at one side of the inner part of the induced draft fan, and the filter screen is arranged at an angle, one side of the brush plate is fitted and connected with one side of the filter screen, a fixed plate is arranged at one end of the movable seat away from the brush plate, an air outlet is provided inside the fixed plate, an air pump is arranged on one side of the ventilation box located at the fixed seat, a collecting box is arranged at one side of the lower end of the ventilation box, the collecting box is connected with the ventilation box, docking blocks are arranged on both sides of the ventilation box, docking seats are arranged on both sides of the ventilation box, the docking blocks are movably connected with the docking seats, plug posts are slidably connected on both sides of one end of the docking seat, slots are arranged on both sides of one end of the docking block, and a power component is provided on the end of the docking seat close to the plug post.

[0008] As a preferred technical solution, guide rods are provided on both sides of one end of the brush plate, and one side of the guide rod is slidably connected to the movable seat.

[0009] As an optimal technical solution, a hose is provided at one end of the ventilation box away from the fixed plate, one end of the hose is connected to the output end of the air pump, a pipe sleeve is provided on one side of the cylinder on the fixed seat, and one side of the hose is slidably connected to the pipe sleeve.

[0010] As a preferred technical solution, positioning plates are provided on both sides of the collecting box, a first positioning column is provided at the lower end of the ventilation box, and the positioning plate is movably connected to the first positioning column.

[0011] As a preferred technical solution, a groove is provided inside the docking seat, and the docking block is inserted into the groove.

[0012] As a preferred technical solution, the power component includes an installation groove, which is connected to the groove and is opened on one side of the docking seat. A screw is rotatably connected inside the installation groove, a handle is provided at one end of the screw, and a slide is slidably connected inside the installation groove. One side of the slide is threadedly connected to the screw, and one end of the slide is connected to one end of the plug column.

[0013] As a preferred technical solution, a second positioning column is provided in the groove at one end of the plug column, a positioning groove is provided at one end of the docking block away from the slot, and one side of the second positioning column is movably connected to the positioning groove.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] First, in the utility model, a fixed seat is installed on the ventilation box, a cylinder is installed on the fixed seat, the output end of the cylinder is connected to the movable seat, the movable seat slides in the ventilation box, and the brush plate on the movable seat is moved on the inclined filter net in the ventilation box. The brush plate fits tightly on the filter net under the action of the spring, and can regularly clean the dust on the filter net. The dust falls into the collection box and is collected to prevent the filter net from being blocked, so that the filter net can be used for a long time. There is no need to manually disassemble the filter net for cleaning or replacement regularly, which reduces the difficulty of maintenance and also reduces the cost of use.

[0016] Second, in the utility model, an air pump is fixed on the ventilation box, and the air pump blows gas into the movable seat, so that the gas is discharged through the air outlet and blown toward the filter. In combination with the brush plate moving on the filter, the dust on the filter can be effectively removed, thereby improving the cleaning effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above.

[0019] Figure 3 It is a schematic diagram of the connection structure of the filter screen and the brush plate of the utility model.

[0020] Figure 4 It is a schematic diagram of the connection structure between the docking block and the docking seat of the utility model.

[0021] Figure numerals: 1. ventilation box; 2. induced draft fan; 3. cylinder; 4. movable seat; 5. spring; 6. brush plate; 7. guide rod; 8. fixed plate; 9. air outlet; 10. air pump; 11. hose; 12. pipe sleeve; 13. fixed seat; 14. collecting box; 15. positioning plate; 16. first positioning column; 17. filter screen; 18. docking block; 19. docking seat; 20. groove; 21. plug column; 22. slot; 23. power assembly; 231. mounting groove; 232. screw; 233. slide plate; 234. handle; 24. positioning groove; 25. second positioning column. DETAILED DESCRIPTION

[0022] Example

[0023] refer to Figures 1 to 4A subway tunnel ventilation structure of the present embodiment comprises a ventilation box 1, an induced draft fan 2 is arranged at one end of the ventilation box 1, a fixed seat 13 is arranged at the upper end of the ventilation box 1, a cylinder 3 is arranged at one end of the fixed seat 13, a movable seat 4 is arranged at the output end of the cylinder 3, the movable seat 4 is a cavity structure, a spring 5 is arranged at one end of the movable seat 4, a brush plate 6 is arranged at one end of the spring 5, a filter screen 17 is arranged at one side of the inner part of the induced draft fan 2, and the filter screen 17 is arranged obliquely, one side of the brush plate 6 is fitted and connected with one side of the filter screen 17, a fixed plate 8 is arranged at one end of the movable seat 4 away from the brush plate 6, an air outlet 9 is opened inside the fixed plate 8, and the air outlet 9 is arranged obliquely, which can guide the gas to blow toward the filter screen 17, so as to facilitate the cleaning of the filter screen 17, and the upper part of the ventilation box 1 is provided with a plurality of air outlet holes 9, and the air outlet holes 9 are arranged at an angle to guide the gas to blow toward the filter screen 17, so as to facilitate the cleaning of the filter screen 17. An air pump 10 is arranged on one side of the fixed seat 13, and a collecting box 14 is arranged on one side of the lower end of the ventilation box 1, the collecting box 14 is connected with the ventilation box 1, docking blocks 18 are arranged on both sides of the ventilation box 1, and docking seats 19 are arranged on both sides of the ventilation box 1. The docking blocks 18 are movably connected with the docking seats 19, and both sides of one end of the docking seat 19 are slidably connected with plug posts 21, and both sides of one end of the docking block 18 are provided with slots 22, and a power component 23 is arranged on the end of the docking seat 19 close to the plug post 21. Through the above arrangement, it is convenient to clean the filter 17, and the accumulated dust and impurities can be removed, the ventilation efficiency of the ventilation box 1 is maintained, the air quality in the subway tunnel is ensured to be continuously improved, and the service life of the filter 17 is extended without manual regular replacement.

[0024] refer to Figure 3 A guide rod 7 is provided on both sides of one end of the brush plate 6, and one side of the guide rod 7 is slidably connected to the movable seat 4; by fixing the guide rod 7 on the brush plate 6, the force movement direction of the brush plate 6 is guided, and the position of the brush plate 6 will not be greatly offset.

[0025] refer to Figure 1 A hose 11 is provided at one end of the ventilation box 1 away from the fixed plate 8, one end of the hose 11 is connected to the output end of the air pump 10, a pipe sleeve 12 is provided on one side of the cylinder 3 on the fixed seat 13, and one side of the hose 11 is slidably connected to the pipe sleeve 12; by fixing the hose 11 at the output end of the air pump 10, the gas generated by the air pump 10 is transported to the movable seat 4, and the pipe sleeve 12 is fixed on the fixed seat 13 to facilitate the guidance of the movement of the hose 11. It should be noted that the length setting of the hose 11 meets the moving distance of the movable seat 4.

[0026] refer to Figure 2 , positioning plates 15 are provided on both sides of the collection box 14, and a first positioning column 16 is provided at the lower end of the ventilation box 1, and the positioning plate 15 is movably connected with the first positioning column 16; by setting the positioning plate 15 and the first positioning column 16, the positioning plate 15 is slidably sleeved on the first positioning column 16, which is used to position the installation position of the collection box 14, so as to facilitate the installation of the collection box 14.

[0027] refer to Figure 4 The docking seat 19 has a groove 20 formed inside, the docking block 18 is inserted into the groove 20, the power assembly 23 includes a mounting groove 231, the mounting groove 231 is connected to the groove 20, the mounting groove 231 is formed on one side of the docking seat 19, a screw rod 232 is rotatably connected inside the mounting groove 231, a handle 234 is provided at one end of the screw rod 232, a slide plate 233 is slidably connected inside the mounting groove 231, one side of the slide plate 233 is threadedly connected to the screw rod 232, and one end of the slide plate 233 is connected to one end of the plug column 21; By setting the groove 20, it is convenient to connect and combine the docking block 18 and the docking seat 19 together. By setting the power component 23, the handle 234 is rotated to drive the screw 232 in the installation groove 231 to rotate. The slide plate 233 on the surface of the screw 232 drives the slide plate 233 to slide in the installation groove 231, so that the slide plate 233 drives the insertion rod to move. The insertion rod is inserted into the slot 22, so that the docking block 18 can be connected to the docking seat 19. The insertion rod leaves the slot 22, so that the docking block 18 can be separated from the docking seat 19, thereby facilitating the staff to regularly clean the collection box 14.

[0028] refer to Figure 4 A second positioning column 25 is provided at one end of the plug column 21 in the groove 20, and a positioning groove 24 is provided at the end of the docking block 18 away from the slot 22, and one side of the second positioning column 25 is movably connected to the positioning groove 24; by providing the second positioning column 25 and the positioning groove 24, it is convenient to tightly connect the docking block 18 and the docking seat 19 together, which is beneficial to the installation of the collection box 14.

[0029] Principle and advantages of use: The ventilation box 1 is installed at the ventilation place of the subway tunnel. The induced draft fan 2 generates wind force to guide the air to circulate in the subway tunnel. The large dust impurities in the air are blocked by the filter 17 and stay on one side of the filter 17. When the filter 17 needs to be cleaned, the cylinder 3 drives the movable seat 4 to slide in the ventilation box 1, and the brush plate 6 on the movable seat 4 is moved on the inclined filter 17 in the ventilation box 1. The brush plate 6 fits tightly on the filter 17 under the action of the spring 5. The brush plate 6 slides on the movable seat 4 through the guide rod 7. The brush plate 6 can move stably under the force. At the same time, the air pump 10 works, and the air pump 10 blows the gas into the hose 11, and then enters the movable seat 4 through the hose 11, and finally exits from the outlet on the fixed plate 8. The air hole 9 sprays out, and in conjunction with the brush plate 6 moving on the filter 17, the dust on the filter 17 can be cleaned efficiently. The dust falls into the collection box 14 and is collected to prevent the filter 17 from being blocked, so that the filter 17 can be used for a long time. There is no need to manually disassemble the filter 17 for cleaning or replacement on a regular basis, which reduces the difficulty of maintenance and the cost of use. When the collection box 14 needs to be cleaned, the handle 234 is turned to drive the screw 232 in the installation groove 231 to rotate, and the slide plate 233 on the surface of the screw 232 drives the slide plate 233 to slide in the installation groove 231, so that the slide plate 233 drives the insertion rod to move, and the insertion rod leaves the slot 22, and the docking block 18 is separated from the docking seat 19, so that the collection box 14 can be removed, which is convenient for the staff to clean the collection box 14 regularly.

Claims

1. A ventilation structure in a subway tunnel, comprising a ventilation box (1), characterized in that: An induced draft fan (2) is arranged at one end of the ventilation box (1), a fixed seat (13) is arranged at the upper end of the ventilation box (1), a cylinder (3) is arranged at one end of the fixed seat (13), a movable seat (4) is arranged at the output end of the cylinder (3), the movable seat (4) is a cavity structure, a spring (5) is arranged at one end of the movable seat (4), a brush plate (6) is arranged at one end of the spring (5), a filter screen (17) is arranged at one side of the interior of the induced draft fan (2), and the filter screen (17) is arranged in an inclined manner, one side of the brush plate (6) is closely connected to one side of the filter screen (17), and a fixed plate (8) is arranged at one end of the movable seat (4) away from the brush plate (6), and the fixed plate (8) is arranged at one end of the movable seat (4) away from the brush plate (6). An air outlet (9) is provided inside, an air pump (10) is provided on one side of the fixed seat (13) on the ventilation box (1), a collecting box (14) is provided on one side of the lower end of the ventilation box (1), the collecting box (14) is connected to the ventilation box (1), docking blocks (18) are provided on both sides of the ventilation box (1), docking seats (19) are provided on both sides of the ventilation box (1), the docking blocks (18) are movably connected to the docking seats (19), one end of the docking seat (19) is slidably connected with plug posts (21) on both sides, one end of the docking block (18) is provided with slots (22) on both sides, and a power component (23) is provided on the end of the docking seat (19) close to the plug post (21).

2. A subway tunnel ventilation structure according to claim 1, characterized in that: Guide rods (7) are provided on both sides of one end of the brush plate (6), and one side of the guide rod (7) is slidably connected to the movable seat (4).

3. The subway tunnel ventilation structure according to claim 1, characterized in that: A hose (11) is provided at one end of the ventilation box (1) away from the fixed plate (8), one end of the hose (11) is connected to the output end of the air pump (10), a pipe sleeve (12) is provided on one side of the cylinder (3) on the fixed seat (13), and one side of the hose (11) is slidably connected to the pipe sleeve (12).

4. The subway tunnel ventilation structure according to claim 1, characterized in that: Positioning plates (15) are provided on both sides of the collection box (14), a first positioning column (16) is provided at the lower end of the ventilation box (1), and the positioning plate (15) is movably connected to the first positioning column (16).

5. The subway tunnel ventilation structure according to claim 1, characterized in that: A groove (20) is provided inside the docking seat (19), and the docking block (18) is inserted into the groove (20).

6. A subway tunnel ventilation structure according to claim 5, characterized in that: The power assembly (23) comprises a mounting groove (231), wherein the mounting groove (231) is connected to the groove (20), the mounting groove (231) is provided on one side of the docking seat (19), a screw rod (232) is rotatably connected inside the mounting groove (231), a handle (234) is provided at one end of the screw rod (232), a slide plate (233) is slidably connected inside the mounting groove (231), one side of the slide plate (233) is threadedly connected to the screw rod (232), and one end of the slide plate (233) is fixedly connected to one end of the plug column (21).

7. The subway tunnel ventilation structure according to claim 5, characterized in that: A second positioning column (25) is provided in the groove (20) at one end of the plug column (21), a positioning groove (24) is provided at one end of the docking block (18) away from the slot (22), and one side of the second positioning column (25) is movably connected to the positioning groove (24).

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