Ventilation device for tunnel construction

Abstract

The invention relates to the field of tunnel ventilation, and particularly discloses a ventilation device for tunnel construction, which comprises a ventilation purification device, and a buffer table is arranged outside the ventilation purification device; the buffer table comprises a table body, a semicircular placement groove is formed in the table body, and a plurality of grooves are formed in the placement groove; one end of the compression spring is mounted in the groove, and the other end of the compression spring is connected with a buffer pad through a compression rod; the plurality of cushions form a semicircular bearing surface which is attached to the outside of the ventilation and purification device; and a locking frame is mounted outside the buffer table. The height of the ventilation device can be adjusted, so that the ventilation device is convenient to clean and maintain; and resonance of the device is buffered, and noise is reduced.

Description

Technical Field

[0001] The invention relates to the field of tunnel ventilation, and in particular to a ventilation device for tunnel construction. Background Art

[0002] During tunnel construction, the air in the tunnel needs to be continuously pumped out to ensure that the air in the tunnel is renewed, thereby reducing the gas content. Currently, the variable frequency fans used in tunnels are mostly split-type, with low working efficiency, and the existing tunnel ventilation devices are mostly fixed and cannot be moved, so it is time-consuming and laborious to adjust the position or repair the ventilation devices.

[0003] The existing Chinese patent with publication number CN219840682U discloses a ventilation device for tunnel construction, which can extract gas from different positions. At the same time, by setting two sets of connecting pipes and coordinating the use of control valves, when the first connecting pipe fails, the other first connecting pipe can be called, thereby ensuring the continuity of ventilation. However, there are the following problems: the ventilation device is usually installed at a high place in the tunnel, which is not convenient for cleaning and maintenance; the ventilation device resonates without buffering, resulting in loud noise, which in turn affects the working environment of the staff. Summary of the invention

[0004] The object of the present invention is to provide a ventilation device for tunnel construction, which can adjust the height of the ventilation device, thereby facilitating the cleaning and maintenance of the ventilation device; and buffer the resonance of the ventilation device to reduce noise.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows: A ventilation device for tunnel construction includes a ventilation and purification device, and a buffer table is arranged outside the ventilation and purification device; the buffer table includes a table body, a semicircular placement groove is arranged inside the table body, and a plurality of grooves are arranged inside the placement groove; it also includes a compression spring, one end of the compression spring is installed in the groove, and the other end is connected to a buffer pad through a compression rod; the plurality of buffer pads form a semicircular bearing surface, which is attached to the outside of the ventilation and purification device; a locking frame is installed outside the buffer table.

[0006] Preferably, the plurality of grooves are equidistantly arranged along the semicircular placement groove.

[0007] Furthermore, it also includes a lifting platform, which includes a shell, a mounting plate installed on the shell, and a plurality of screws are arranged on the mounting plate; a driving motor and a rotating shaft are installed in the shell, a driving wheel is installed at the output end of the driving motor, and a driven wheel is connected to the rotating shaft, and the driving wheel and the driven wheel are synchronously connected through a transmission chain; a first column and a second column are respectively installed at the bottom of the shell, and a first screw and a second screw are respectively arranged in the first column and the second column, the upper end of the first screw passes through the shell and is synchronously connected to the driving wheel, and the upper end of the second screw passes through the shell and is synchronously connected to the driven wheel; the lower end of the first screw is threadedly connected to a first sleeve, and the first sleeve is restricted by the first column and can only move in the vertical direction; the lower end of the second screw is threadedly connected to a second sleeve, and the first sleeve is restricted by the second column and can only move in the vertical direction. The locking frame is connected to a lifting plate, and the lower ends of the first sleeve and the second sleeve are connected to the lifting plate.

[0008] The specific structure of the first sleeve being restricted by the first column is: a first slider is provided on the outer wall of the first sleeve, a first vertical slide groove is provided on the inner wall of the first column, and the first slider is slidably connected in the first slide groove; a second slider is provided on the outer wall of the second sleeve, a second vertical slide groove is provided on the inner wall of the second column, and the second slider is slidably connected in the second slide groove.

[0009] Furthermore, the locking frame includes a frame body, and locking holes are respectively provided at both ends of the frame body, and the two ends of the ventilation and purification device pass through the locking holes at both ends of the frame body respectively; a plurality of locking rods are arranged along the circumference of the locking holes, and the locking rods pass through the frame body and are threadedly connected to the frame body, so that rotating the locking rod can change the locking degree of the locking rod; a locking knob is installed at one end of the locking rod located outside the frame body, and a locking head is installed at the other end located inside the frame body.

[0010] Preferably, there are two locking rods, which are symmetrically arranged on both sides of the locking hole.

[0011] Furthermore, the ventilation and purification device comprises a ventilation cylinder, both ends of which are respectively provided with ventilation ports, a ventilation fan is installed inside the ventilation cylinder through a fixing frame, and a filter assembly is installed inside the ventilation cylinder. The ventilation cylinder is fitted with the buffer pad.

[0012] Furthermore, the filter assembly includes a filter screen, a HEPA filter layer and an activated carbon layer.

[0013] Furthermore, a dustproof net is fixedly installed on the inner wall of the ventilation opening.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The buffer pad is attached to the outside of the ventilation and purification device. The ventilation and purification device generates vibration during operation. The vibration is transmitted to the buffer pad and the compression rod. The compression rod deforms in the groove to generate a reverse force, so that the buffer device formed by the compression spring, the compression rod and the buffer pad as a whole resonates with the ventilation and purification device during use, thereby reducing noise pollution.

[0015] 2. The lifting platform is connected to the locking frame and the ventilation and purification device to adjust the height of the ventilation and purification device. When the ventilation and purification device needs to be cleaned or maintained, the ventilation and purification device can be lowered from a high place by adjusting the lifting platform to facilitate cleaning and maintenance.

[0016] 3. The filter component includes three different filter layers, which filter the air three times for different purposes. The first filter filters the larger particles such as hair in the air through the filter; the second filter effectively removes the fine dust and smoke in the air through the HEPA filter layer; the third filter removes the odor, smoke, etc. in the air through the activated carbon layer, reducing environmental pollution, and the air in the tunnel is discharged outward after filtering, so that the air can circulate and improve the air quality in the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of the present invention.

[0018] Figure 2 This is a cross-sectional view of the lifting platform.

[0019] Figure 3 A cross-sectional view of the locking frame.

[0020] Figure 4 It is a cross-sectional view of the ventilation and purification device.

[0021] Figure 5 This is a cross-sectional view of the buffer table.

[0022] The meanings of the symbols in the figure are: 1-lifting platform, 101-housing, 102-driving motor, 103-driving wheel, 104-driven wheel, 105-rotating shaft, 106-transmission chain, 107-first column, 108-second column, 109-first screw, 110-second screw, 111-first sleeve, 112-second sleeve, 2-mounting plate, 3-screw, 4-lifting plate, 5-locking frame, 501-frame, 502-lock Fixed hole, 503-locking knob, 504-locking rod, 505-locking head, 6-buffer table, 601-table body, 602-groove, 603-compression spring, 604-compression rod, 605-buffer pad, 7-ventilation and purification device, 701-ventilation cylinder, 702-mounting frame, 703-ventilation fan, 704-filter net, 705-HEPA filter layer, 706-activated carbon layer, 707-ventilation port. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention, so as to have a further understanding of the concept of the present invention, the technical problems solved, the technical features constituting the technical scheme and the technical effects brought about.

[0024] like Figure 1 , Figure 5 As shown, a ventilation device for tunnel construction includes a ventilation and purification device 7, and a buffer platform 6 is arranged outside the ventilation and purification device 7; the buffer platform 6 includes a platform body 601, a semicircular placement groove is arranged inside the platform body 601, and a plurality of grooves 602 are arranged inside the placement groove; it also includes a compression spring 603, one end of the compression spring 603 is installed in the groove 602, and the other end is connected to a buffer pad 605 through a compression rod 604; the plurality of buffer pads 605 form a semicircular bearing surface, which is attached to the outside of the ventilation and purification device 7; and a locking frame 5 is installed outside the buffer platform 6. The buffer pad 605 is attached to the outside of the ventilation and purification device 7, and the ventilation and purification device 7 generates vibration during operation, and the vibration is transmitted to the buffer pad 605 and the compression rod 604. The compression rod 604 is deformed in the groove 602 to generate a reverse force, so that the buffer device formed by the compression spring 603, the compression rod 604 and the buffer pad 605 resonates with the ventilation and purification device 7 during use, thereby reducing noise pollution.

[0025] Preferably, the plurality of grooves 602 are equidistantly arranged along the semicircular placement groove. The placement groove is semicircular, the ventilation and purification device 7 is cylindrical, the bottom of the ventilation and purification device 7 fits on the buffer pad 605 in the placement groove, and the plurality of grooves 602 are equidistantly arranged along the semicircular placement groove, so that the plurality of buffer pads 605 jointly buffer the ventilation and purification device 7, increasing the buffer area and further reducing noise pollution.

[0026] like Figure 2As shown, it also includes a lifting platform 1, which includes a shell 101, a mounting plate 2 is installed on the shell 101, and a plurality of screws 3 are arranged on the mounting plate 2; a driving motor 102 and a rotating shaft 105 are installed in the shell 101, a driving wheel is installed at the output end of the driving motor 102, and the rotating shaft 105 is connected to a driven wheel 104, and the driving wheel and the driven wheel 104 are synchronously connected through a transmission chain 106; a first column 107 and a second column 108 are respectively installed at the bottom of the shell 101, and a first column 107 and a second column 108 are respectively provided in the first column 107 and the second column 108. The screw 109 and the second screw 110, the upper end of the first screw 109 passes through the housing 101 and is synchronously connected to the driving wheel 103, and the upper end of the second screw 110 passes through the housing 101 and is synchronously connected to the driven wheel 104; the lower end of the first screw 109 is threadedly connected with the first sleeve 111, and the first sleeve 111 is restricted by the first column 107 and can only move in the vertical direction; the lower end of the second screw 110 is threadedly connected with the second sleeve 112, and the first sleeve 111 is restricted by the second column 108 and can only move in the vertical direction. The locking frame 5 is connected to the lifting plate 4, and the lower ends of the first sleeve 111 and the second sleeve 112 are connected to the lifting plate 4. The function of the lifting platform 1 is to connect the locking frame 5 and the ventilation and purification device 7, adjust the height of the ventilation and purification device 7, and then when the ventilation and purification device 7 needs to be cleaned, maintained, etc., the ventilation and purification device 7 can be lowered from a high place by adjusting the lifting platform 1, which is convenient for cleaning and maintenance. The working principle of the lifting platform 1 is: the driving motor 102 drives the driving wheel to rotate, and the driving wheel synchronously drives the driven wheel 104 to rotate through the transmission chain 106; the first screw 109 and the second screw 110 are respectively connected to the driving wheel 103 and the driven wheel 104, and the first screw 109 and the second screw 110 also rotate synchronously with the driving wheel 103 and the driven wheel 104. The first screw rod 109 is threadedly connected to the first sleeve 111, and the first column 107 is sleeved on the outside of the first sleeve 111, and the first column 107 forms a restriction on the first sleeve 111, so that the first sleeve 111 can only move in the vertical direction in the first column 107; the rotation of the first screw rod 109, when the first sleeve 111 is restricted, will make the first sleeve 111 move in the vertical direction; similarly, the second sleeve 112 will be raised and lowered synchronously with the first sleeve 111, and the first sleeve 111 and the second sleeve 112 are connected to the locking frame 5 to complete the lifting and lowering of the locking frame 5 and the ventilation and purification device 7. The first sleeve 111 and the second sleeve 112 are connected to the locking frame 5 at the same time, which is also more stable.

[0027] The specific structure of the first sleeve 111 restricted by the first column 107 is: a first slider is provided on the outer wall of the first sleeve 111, a first vertical slide groove is provided on the inner wall of the first column 107, and the first slider is slidably connected in the first slide groove; a second slider is provided on the outer wall of the second sleeve 112, a second vertical slide groove is provided on the inner wall of the second column 108, and the second slider is slidably connected in the second slide groove.

[0028] like Figure 3 As shown, further, the locking frame 5 includes a frame body 501, and locking holes 502 are respectively provided at both ends of the frame body 501, and the two ends of the ventilation and purification device 7 pass through the locking holes 502 at both ends of the frame body 501 respectively; a plurality of locking rods 504 are arranged along the circumference of the locking holes 502, and the locking rods 504 pass through the frame body 501 and are threadedly connected to the frame body 501, so that rotating the locking rod 504 can change the locking degree of the locking rod 504; a locking knob 503 is installed at one end of the locking rod 504 located outside the frame body 501, and a locking head 505 is installed at one end located inside the frame body 501. The locking rod 504 is arranged along the circumference of the locking hole 502. The locking knob 503 is turned to make the locking rod 504 rotate, and the locking rod 504 moves in the direction of the locking hole 502 during the rotation, thereby adjusting the clamping degree of the ventilation and purification device 7 in the locking hole 502, and is used to clamp or loosen the ventilation and purification device 7 in the locking hole 502, so that the ventilation and purification device 7 can be directly removed from the locking frame 5, and the ventilation and purification device 7 can also be quickly fixed.

[0029] Preferably, there are two locking rods 504 , which are symmetrically arranged on both sides of the locking hole 502 .

[0030] like Figure 4 As shown, further, the ventilation purification device 7 includes a ventilation tube 701, and ventilation ports 707 are respectively provided at both ends of the ventilation tube 701. A ventilation fan 703 is installed inside the ventilation tube 701 through a fixing frame, and a filter assembly is installed inside the ventilation tube 701. The air outside the tunnel is introduced from the ventilation port 707 on one side through the ventilation fan 703, and after being filtered by the filter assembly, the air is discharged from the ventilation port 707 on the other side and blown to the outside of the tunnel to achieve the purpose of air purification.

[0031] Furthermore, the filter assembly includes a filter 704, a HEPA filter layer 705 and an activated carbon layer 706. The filter assembly includes three different filter layers, which filter the air three times for different purposes. In the first filtration, the larger particles such as hair in the air are filtered through the filter 704; in the second filtration, the fine dust and smoke in the air are effectively removed through the HEPA filter layer 705; in the third filtration, the odor, smoke, etc. in the air are removed through the activated carbon layer 706, reducing environmental pollution, and the air in the tunnel is discharged outward after being filtered, so that the air circulates and the air quality in the tunnel is improved.

[0032] HEPA filter layer 705, also known as HEPA filter, is a highly efficient air filtration device. The core of HEPA filter lies in its precise fiber structure. These fibers are as thin as hair and can effectively capture particles larger than 0.3 microns in diameter in the air, including dust, pollen, smoke, bacteria, viruses, etc., with a filtration efficiency of more than 99.97%.

[0033] Furthermore, a dust screen is fixedly installed on the inner wall of the vent. The working purpose of the dust screen is different from that of the filter assembly. The main purpose is to isolate larger particles of impurities to avoid clogging the filter assembly.

[0034] The terms “connection” and “fixation” mentioned in the description of the present invention may refer to fixed connection, processing and forming, welding or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0035] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inside", "outside", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ventilation device for tunnel construction, characterized in that: It comprises a ventilation and purification device (7), and a buffer platform (6) is arranged outside the ventilation and purification device (7); The buffer table (6) comprises a table body (601), a semicircular placement groove is arranged in the table body (601), and a plurality of grooves (602) are arranged in the placement groove; it also comprises a compression spring (603), one end of the compression spring (603) is installed in the groove (602), and the other end is connected to a buffer pad (605) through a compression rod (604); the plurality of buffer pads (605) form a semicircular bearing surface, which is attached to the outside of the ventilation and purification device (7); A locking frame (5) is installed outside the buffer table (6).

2. A ventilation device for tunnel construction according to claim 1, characterized in that: The plurality of grooves (602) are arranged at equal intervals along the semicircular placement groove.

3. A ventilation device for tunnel construction according to claim 1, characterized in that: It also comprises a lifting platform (1), the lifting platform (1) comprising a housing (101), a mounting plate (2) being mounted on the housing (101), and a plurality of screws (3) being arranged on the mounting plate (2); a driving motor (102) and a rotating shaft (105) being mounted in the housing (101), a driving wheel being mounted on the output end of the driving motor (102), a driven wheel (104) being connected to the rotating shaft (105), and the driving wheel and the driven wheel (104) being synchronously connected via a transmission chain (106); A first column (107) and a second column (108) are respectively installed at the bottom of the housing (101), and a first screw rod (109) and a second screw rod (110) are respectively arranged in the first column (107) and the second column (108), the upper end of the first screw rod (109) passes through the housing (101) and is synchronously connected to the driving wheel (103), and the upper end of the second screw rod (110) passes through the housing (101) and is synchronously connected to the driven wheel (104); The lower end of the first screw rod (109) is threadedly connected to a first sleeve (111), and the first sleeve (111) is restricted by the first column (107) and can only move in the vertical direction; the lower end of the second screw rod (110) is threadedly connected to a second sleeve (112), and the second sleeve (112) is restricted by the second column (108) and can only move in the vertical direction; the locking frame (5) is connected to a lifting plate (4), and the lower ends of the first sleeve (111) and the second sleeve (112) are connected to the lifting plate (4).

4. A ventilation device for tunnel construction according to claim 3, characterized in that: The specific structure of the first sleeve (111) being restricted by the first column (107) is as follows: a first sliding block is provided on the outer wall of the first sleeve (111), a first vertical sliding groove is provided on the inner wall of the first column (107), and the first sliding block is slidably connected in the first sliding groove; a second sliding block is provided on the outer wall of the second sleeve (112), a second vertical sliding groove is provided on the inner wall of the second column (108), and the second sliding block is slidably connected in the second sliding groove.

5. A ventilation device for tunnel construction according to claim 1, characterized in that: The locking frame (5) comprises a frame body (501), and locking holes (502) are respectively arranged at both ends of the frame body (501), and the two ends of the ventilation and purification device (7) respectively pass through the locking holes (502) at both ends of the frame body (501); a plurality of locking rods (504) are arranged along the circumference of the locking holes (502), and the locking rods (504) pass through the frame body (501) and are threadedly connected to the frame body (501), so that the locking degree of the locking rods (504) can be changed by rotating the locking rods (504); a locking knob (503) is installed at one end of the locking rod (504) located outside the frame body (501), and a locking head (505) is installed at one end of the locking rod (504) located inside the frame body (501).

6. A ventilation device for tunnel construction according to claim 5, characterized in that: There are two locking rods (504), and the two locking rods (504) are symmetrically arranged on both sides of the locking hole (502).

7. A ventilation device for tunnel construction according to claim 1, characterized in that: The ventilation purification device (7) comprises a ventilation cylinder (701), with ventilation openings (707) respectively provided at both ends of the ventilation cylinder (701), a ventilation fan (703) being installed inside the ventilation cylinder (701) via a fixing frame, and a filter assembly being installed inside the ventilation cylinder (701).

8. A ventilation device for tunnel construction according to claim 7, characterized in that: The filter assembly comprises a filter screen (704), a HEPA filter layer (705) and an activated carbon layer (706).

9. A ventilation device for tunnel construction according to claim 7, characterized in that: A dustproof net is fixedly mounted on the inner wall of the ventilation opening (707).

Images