Ventilation and dust removal device for underground ramp construction

Abstract

The utility model discloses a ventilation and dust removal device for underground ramp construction, and relates to the technical field of underground construction.The ventilation and dust removal device comprises a ventilation pipe and a fixing base fixedly connected to the bottom of the ventilation pipe, and draught fans are arranged at the two ends of the ventilation pipe. The problem that the filter plate is troublesome to clean due to the fact that the filter plate needs to be manually cleaned by a worker is solved, and the labor intensity of the worker is favorably reduced; through cooperation of a lead screw, a push plate and an opening and closing plate, the ventilation and dust removal device can store dust cleaned at a time, and the problems that after the dust is treated at a time, if the ventilation and dust removal device continues to work, air flow affects accumulation and storage of the dust, and if the dust is discharged immediately after being cleaned at a time, the dust is discharged immediately are solved. And the practical performance of the ventilation and dust removal device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of underground construction technology, specifically to a ventilation and dust removal device for underground inclined ramp construction. Background Technology

[0002] During the construction of underground ramps, rock drilling, blasting, and mechanical excavation operations generate a large amount of dust and harmful gases, which seriously threaten the health of construction workers. Long-term inhalation can easily lead to diseases such as pneumoconiosis. Therefore, ventilation and dust removal devices are needed when constructing underground.

[0003] 1. Currently, ventilation and dust removal devices still require manual operation to clean the debris adhering to the filter plate surface after a period of use. They cannot automatically clean the filter plate surface, resulting in high labor intensity for operators.

[0004] 2. If the dust removed from the filter plates by the ventilation and dust removal device is stored and processed centrally, the airflow will blow the dust during normal operation, affecting the accumulation and storage of the dust. If the dust is discharged immediately after each cleaning, it will increase the workload and result in poor performance of the ventilation and dust removal device. Utility Model Content

[0005] To address the above problems, this utility model provides a ventilation and dust removal device for underground inclined tunnel construction, which solves the aforementioned issues.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ventilation and dust removal device for underground inclined ramp construction, comprising a ventilation pipe and a fixed base fixedly connected to the bottom of the ventilation pipe, both ends of the ventilation pipe are provided with fans, the inner wall of the ventilation pipe is provided with a sliding groove, a guide rod is connected to one side of the sliding groove, a spring is provided on the outside of the guide rod, and one end of the spring is connected to one side of the sliding groove;

[0007] The ventilation duct is equipped with a filter plate inside, and a slider is connected to the outside of the filter plate. The slider is slidably connected in a groove. The inside of the slider is slidably connected to the outside of the guide rod. Several fixed rods are connected to the inner wall of the ventilation duct, and one end of each fixed rod is connected to a hammer.

[0008] The bottom of the ventilation duct is connected to a dust collection mechanism, which includes a dust collection box connected to the bottom of the ventilation duct and positioned between two fixed bases.

[0009] Preferably, the ventilation duct is internally connected to a rotating shaft, and the rotating shaft is externally connected to a rotating protrusion, which is disposed on one side of the filter plate.

[0010] Preferably, a motor is connected to the top of the ventilation duct, and the output end of the motor is connected to one end of the rotating shaft for transmission.

[0011] Preferably, an arc groove is provided on one side of the dust collection box, an opening and closing plate is connected inside the arc groove, and a push plate is connected to one side of the opening and closing plate.

[0012] Preferably, a lead screw is rotatably connected to one side of the push plate, and a rotating block is connected to one end of the lead screw. The outside of the lead screw is threadedly connected to the dust collection box and the inside of one of the fixed blocks.

[0013] Preferably, a limiting rod is connected to one side of the push plate, and the outside of the limiting rod is slidably connected to the dust collection box and the inside of one of the fixing blocks.

[0014] Preferably, the bottom surface of the dust collection box is provided with a groove, the inside of the dust collection box is provided with a pull-out shell, the bottom end of the pull-out shell is connected to the groove, and a cleaning door is connected to one side of the dust collection box.

[0015] Preferably, mounting plates are connected to both sides of the fixed base, a support platform is connected to the bottom of the fixed base, and a brake caster is connected to the bottom of the support platform.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This application uses a rotating protrusion to drive the filter plate to cooperate with the hammer, so that the filter plate collides with the hammer. At this time, the impact force of the collision is transmitted to the filter plate, causing the debris attached to the surface of the filter plate to separate and fall off the filter plate. This achieves the effect of automatically cleaning the debris on the surface of the filter plate, solving the problem that manual cleaning is still required when cleaning the filter plate, which makes the filter plate cleaning more troublesome and helps to reduce the labor intensity of the operators.

[0018] 2. This application, through the cooperation of the lead screw, push plate, and opening / closing plate, enables the ventilation and dust removal device to not only store the dust collected in a single cleaning, but also maintain the relative closure of the ventilation duct during normal operation. This allows the airflow in the ventilation duct to be concentrated and flow along the duct, preventing it from flowing to other places. This solves the problem that if the ventilation and dust removal device continues to operate after a single dust treatment, the airflow will affect the accumulation and storage of dust. If the dust is discharged immediately after a single cleaning, it will increase the workload. This improves the practical performance of the ventilation and dust removal device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the ventilation duct of this utility model;

[0022] Figure 4 This is a schematic diagram of the slide groove structure of this utility model;

[0023] Figure 5 This is an exploded structural diagram of the hammer, filter plate, and rotating protrusion of this utility model.

[0024] Figure 6 This is a schematic diagram of the dust collection box structure of this utility model;

[0025] Figure 7 This is a partial structural schematic diagram of the present invention.

[0026] The diagram shows the following components: 1. Ventilation duct; 2. Fixed base; 3. Fan; 4. Dust collection mechanism; 401. Dust collection box; 402. Arc groove; 403. Opening and closing plate; 404. Push plate; 405. Lead screw; 406. Rotating block; 407. Limiting rod; 408. Groove; 409. Pull-out shell; 410. Cleaning door; 5. Slide groove; 6. Guide rod; 7. Spring; 8. Sliding block; 9. Filter plate; 10. Fixed rod; 11. Hammer; 12. Rotating shaft; 13. Rotating protrusion; 14. Motor; 15. Mounting plate; 16. Support platform; 17. Brake caster wheel. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0028] Example 1: Please refer to Figures 1 to 7A ventilation and dust removal device for underground inclined tunnel construction includes a ventilation pipe 1 and a fixed base 2 fixedly connected to the bottom of the ventilation pipe 1. Fans 3 are installed at both ends of the ventilation pipe 1. When the fans 3 are working, the impeller rotates at high speed. The blades on the impeller push the surrounding air particles, giving the air kinetic and pressure energy. Due to the friction between the blades and the air, and the compression effect of the blades on the air, the air is forced to flow along the rotation direction of the impeller. Under the action of the impeller rotation, the air is pushed from the center of the impeller to the edge, resulting in a decrease in air pressure in the central region of the impeller, forming a low-pressure area. At the same time, the air pressure at the edge of the impeller relatively increases, forming a high-pressure area. This creates pressure between the inlet and outlet of the impeller. Due to the pressure difference, external air will continuously flow towards the low-pressure area at the center of the impeller, while the air flowing out from the edge of the impeller will be transported to the area that needs ventilation along the ventilation pipe. This cycle repeats, forming a continuous airflow and realizing the ventilation function. During ventilation, dust and debris in the air will be filtered and intercepted by the filter screen 9. It should be noted that the two fans 3 work in the same direction, and the fans 3 are known technology. Those skilled in the art can and should understand their specific functions and structures, so they will not be described in detail here. The inner wall of the ventilation pipe 1 is provided with a sliding groove 5. A guide rod 6 is connected to one side of the sliding groove 5. A spring 7 is provided on the outside of the guide rod 6. One end of the spring 7 is connected to one side of the sliding groove 5.

[0029] The ventilation duct 1 has a filter plate 9 inside, and a slider 8 is connected to the outside of the filter plate 9. The slider 8 is slidably connected in the groove 5. The inside of the slider 8 is slidably connected to the outside of the guide rod 6. Several fixed rods 10 are connected to the inner wall of the ventilation duct 1. One end of the fixed rods 10 is connected to a hammer 11. When cleaning the filter plate 9, the output end of the motor 14 drives the rotating shaft 12 to rotate, so that the rotating shaft 12 will drive the rotating protrusion 13 on its outside to rotate. It should be noted that the rotating protrusion 13 has only one end protruding, and the rest is a normal arc shape. So when the protruding part of the rotating protrusion 13 rotates, the protruding part gradually contacts the filter plate 9.

[0030] As the rotating protrusion 13 continues to rotate until the outermost end of the protrusion contacts the filter plate 9, the filter plate 9 moves to the maximum distance. Then the rotating protrusion 13 continues to rotate, and the filter plate 9 will reset.

[0031] Therefore, when the filter plate 9 moves toward the hammer 11, it will drive the slider 8 to move in the groove 5. At the same time, the slider 8 will also move along the guide rod 6, and when the slider 8 moves, it will squeeze the spring 7. When the filter plate 9 moves to the maximum distance and collides with the hammer 11, an impact force will be generated. This impact force is transmitted to the filter plate 9, causing the debris attached to the surface of the filter plate 9 to be subjected to an instantaneous external force, thereby causing the debris to fall off.

[0032] The impact of the hammer 11 not only generates impact force, but also causes the filter plate 9 to vibrate. This vibration will create a wave on the filter plate 9, causing the loosened debris to fall off the surface of the filter plate 9 under the action of vibration. The vibration will also shake off some debris that was originally hidden in the gaps or uneven places on the filter plate 9, so that debris in different positions on the filter plate 9 can be effectively cleaned, ensuring the cleanliness of the surface of the filter plate 9.

[0033] Then, as the rotating protrusion 13 continues to rotate, the filter plate 9 will reset. At this time, the energy accumulated by the originally compressed spring 7 is released, and the rebound force of the spring 7 will push the filter plate 9 to reset. Then, the cycle repeats to automatically clean the filter plate 9.

[0034] The bottom of the ventilation duct 1 is connected to a dust collection mechanism 4, which includes a dust collection box 401. The dust collection box 401 is connected to the bottom of the ventilation duct 1 and is located between two fixed seats 2.

[0035] The ventilation duct 1 is internally connected to a rotating shaft 12, and the rotating shaft 12 is externally connected to a rotating protrusion 13, which is located on one side of the filter plate 9.

[0036] A motor 14 is connected to the top of the ventilation duct 1, and the output end of the motor 14 is connected to one end of the rotating shaft 12 for transmission.

[0037] A groove 402 is provided on one side of the dust collection box 401. An opening and closing plate 403 is connected inside the groove 402. A push plate 404 is connected to one side of the opening and closing plate 403.

[0038] A lead screw 405 is rotatably connected to one side of the push plate 404. A rotating block 406 is connected to one end of the lead screw 405. The outside of the lead screw 405 is threadedly connected to the dust collection box 401 and the inside of one of the fixed blocks. When cleaning the debris on the surface of the filter plate 9, the ventilation and dust removal device stops working. Then, the operator rotates the rotating block 406. At this time, the rotating block 406 drives the lead screw 405 to rotate. Because the lead screw 405 is threadedly connected to one of the fixed seats 2 and the dust collection box 401, it will move inside one of the fixed seats 2 and the dust collection box 401 when the lead screw 405 rotates. Of course, the lead screw 405 will also drive the push plate 404 to move when it moves.

[0039] It should be noted that if the filter plate 9 is cleaned without stopping the ventilation and dust removal device, the dust will be affected by the airflow in the ventilation duct 1 when it separates from the filter plate 9, which will prevent the dust from falling into the dust collection box 401 normally and quickly.

[0040] Therefore, when cleaning the filter plate 9, the push plate 404 is moved and the push plate 404 will also drive the opening and closing plate 403 to move in the arc groove 402, so that the bottom of the ventilation pipe 1 is connected to the dust collection box 401. At this time, the dust and debris that are cleaned will fall into the interior of the dust collection box 401.

[0041] It should be further explained that the push plate 404 is an inclined plate, so when debris falls on the push plate 404, it will be affected by the tilt angle and will roll down into the dust collection box 401 more quickly.

[0042] When the filter plate 9 is not cleaned, the screw 405 rotates and moves, causing the push plate 404 and the opening and closing plate 403 to move to the closed dust collection box 401. At this time, the ventilation pipe 1 will also be relatively closed, with only the inlet and outlet for air flow. When the push plate 404 moves, it will also push the dust and debris cleaned in one cleaning to the cleaning door 410 of the dust collection box 401, so that it is convenient for subsequent personnel to open the cleaning door 410 to directly clean the dust and debris in the dust collection box 401.

[0043] A limiting rod 407 is connected to one side of the push plate 404. The outside of the limiting rod 407 is slidably connected to the dust collection box 401 and the inside of one of the fixed blocks. Since the push plate 404 is rotatably connected to the lead screw 405, the limiting rod 407 is needed to restrict the push plate 404 so that the push plate 404 can move stably when the lead screw 405 rotates.

[0044] The bottom surface of the dust collection box 401 is provided with a groove 408. The dust collection box 401 is provided with a pull-out shell 409. The bottom end of the pull-out shell 409 is connected to the groove 408. A cleaning door 410 is connected to one side of the dust collection box 401. The pull-out shell 409 is restricted by the groove 408. The pull-out shell 409 will slide along the groove 408 when the dust collection box 1 is put in and taken out.

[0045] It should be further added that the pull-out cover 409 contains cleaning brushes and other tools needed for cleaning dust and debris in the dust collection box 401. This allows personnel to conveniently use these tools when cleaning the dust and debris accumulated in the dust collection box 401. During cleaning, the cleaning door 410 can be opened, and the tools can be used to clean the accumulated dust and debris into collection bags or other items.

[0046] This way, personnel only need to clean the dust and debris in the dust collection box 401 periodically, without having to clean the dust and debris removed from the filter plate 9 every time. Furthermore, the accumulation of dust and debris will not affect the normal operation of the ventilation duct 1.

[0047] Example 2: Please refer to Figure 1Mounting plates 15 are connected to both sides of the fixed base 2, and a support platform 16 is connected to the bottom of the fixed base 2. A brake caster 17 is connected to the bottom of the support platform 16. Embodiment 2 is basically the same as Embodiment 1. Embodiment 2 is an optimization of Embodiment 1. The similarities will not be repeated. The difference is that in Embodiment 2, the mounting plate 15 and the support platform 16 can be connected and installed using bolts, and then moved by the brake caster 17 at the bottom of the support platform 16, so as to facilitate personnel to adjust the position of the ventilation and dust removal device.

[0048] When using this utility model:

[0049] First, the two fans 3 in the ventilation duct 1 work, forming a continuous airflow and realizing the ventilation function. During ventilation, dust and debris in the air will be filtered and intercepted by the filter screen 9. When the debris on the surface of the filter plate 9 is cleaned, the ventilation and dust removal device stops working. Then, the operator rotates the rotating block 406. At this time, the rotating block 406 drives the lead screw 405 to rotate. Because the lead screw 405 is threadedly connected to one of the fixed seats 2 and the dust collection box 401, it will move inside one of the fixed seats 2 and the dust collection box 401 when the lead screw 405 rotates. Of course, when the lead screw 405 moves, it will also drive the push plate 404 to move.

[0050] Secondly, when cleaning the filter plate 9, the push plate 404 is moved and the opening and closing plate 403 is moved in the arc groove 402, so that the bottom of the ventilation pipe 1 is connected to the dust collection box 401. At this time, the dust and debris that are cleaned will fall into the interior of the dust collection box 401 and drive the rotating shaft 12 to rotate through the output end of the motor 14. The rotating shaft 12 will drive the rotating protrusion 13 on its outside to rotate. It should be noted that the rotating protrusion 13 is only raised at one end, and the rest is a normal arc shape. So when the raised part of the rotating protrusion 13 rotates, the raised part gradually contacts the filter plate 9.

[0051] Then, as the rotating protrusion 13 continues to rotate until the outermost end of the protrusion contacts the filter plate 9, the filter plate 9 moves to the maximum distance. Then the rotating protrusion 13 continues to rotate, and the filter plate 9 will reset. Therefore, when the filter plate 9 moves toward the hammer 11, it will drive the slider 8 to move in the groove 5. At the same time, the slider 8 will also move along the guide rod 6, and when the slider 8 moves, it will squeeze the spring 7. When the filter plate 9 moves to the maximum distance and collides with the hammer 11, an impact force will be generated. This impact force is transmitted to the filter plate 9, causing the debris attached to the surface of the filter plate 9 to be subjected to an instantaneous external force, thereby causing the debris to fall off.

[0052] Finally, when the filter plate 9 is not cleaned, the lead screw 405 rotates and moves, causing the push plate 404 and the opening and closing plate 403 to move to the closed dust collection box 401. At this time, the ventilation pipe 1 will also be relatively closed, with only the inlet and outlet for air flow. When the push plate 404 moves, it will also push the dust and debris cleaned in one go to the cleaning door 410 of the dust collection box 401, so that it is convenient for subsequent personnel to open the cleaning door 410 to directly clean the dust and debris in the dust collection box 401.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ventilation and dust removal device for construction of an underground inclined ramp, comprising a ventilation pipe (1) and a fixed base (2) fixedly connected to the bottom of the ventilation pipe (1), wherein both ends of the ventilation pipe (1) are provided with fans (3), characterized in that: The ventilation pipe (1) has a groove (5) on its inner wall. A guide rod (6) is connected to one side of the groove (5). A spring (7) is provided on the outside of the guide rod (6). One end of the spring (7) is connected to one side of the groove (5). The ventilation pipe (1) is provided with a filter plate (9) inside, and a slider (8) is connected to the outside of the filter plate (9). The slider (8) is slidably connected in the groove (5). The inside of the slider (8) is slidably connected to the outside of the guide rod (6). The inner wall of the ventilation pipe (1) is connected with several fixed rods (10), and one end of several fixed rods (10) is connected to a hammer (11). The bottom of the ventilation pipe (1) is connected to a dust collection mechanism (4), which includes a dust collection box (401). The dust collection box (401) is connected to the bottom of the ventilation pipe (1) and is located between two fixed seats (2).

2. The ventilation and dust removal device for underground inclined ramp construction according to claim 1, characterized in that: The ventilation pipe (1) is internally connected to a rotating shaft (12), and the rotating shaft (12) is externally connected to a rotating protrusion (13), which is located on one side of the filter plate (9).

3. The ventilation and dust removal device for underground inclined ramp construction according to claim 2, characterized in that: A motor (14) is connected to the top of the ventilation pipe (1), and the output end of the motor (14) is connected to one end of the rotating shaft (12) for transmission.

4. The ventilation and dust removal device for underground inclined ramp construction according to claim 1, characterized in that: The dust collection box (401) has an arc groove (402) on one side, and an opening and closing plate (403) is connected inside the arc groove (402). A push plate (404) is connected to one side of the opening and closing plate (403).

5. A ventilation and dust removal device for underground inclined ramp construction according to claim 4, characterized in that: A lead screw (405) is rotatably connected to one side of the push plate (404), and a rotating block (406) is connected to one end of the lead screw (405). The outside of the lead screw (405) is threadedly connected to the dust collection box (401) and one of the fixing blocks.

6. A ventilation and dust removal device for underground inclined ramp construction according to claim 5, characterized in that: One side of the push plate (404) is connected to a limiting rod (407), and the outside of the limiting rod (407) is slidably connected to the dust collection box (401) and the inside of one of the fixing blocks.

7. A ventilation and dust removal device for underground inclined ramp construction according to claim 1, characterized in that: The dust collection box (401) has a groove (408) on its inner bottom surface. The dust collection box (401) has a pull-out shell (409) inside. The bottom end of the pull-out shell (409) is connected to the groove (408). A cleaning door (410) is connected to one side of the dust collection box (401).

8. A ventilation and dust removal device for underground inclined ramp construction according to claim 1, characterized in that: Mounting plates (15) are connected to both sides of the fixed base (2), and a support platform (16) is connected to the bottom of the fixed base (2). A brake caster (17) is connected to the bottom of the support platform (16).

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