Ventilation device for soft rock tunnel supporting construction

Abstract

The invention relates to the technical field of tunnel ventilation, and particularly discloses a ventilation device for soft rock tunnel supporting construction, which comprises a supporting frame and a ventilation mechanism arranged on the supporting frame, the ventilation mechanism comprises an air bellow provided with an air inlet and an air outlet, and a ventilation assembly arranged in the air bellow; the ventilation assembly comprises a rotating shaft, fan blades, a filter plate, a cleaning part and a driving part for driving the rotating shaft to rotate; the rotating shaft is rotationally connected with the bellows; the fan blades and the filter plate are fixedly connected with the rotating shaft; the cleaning part comprises a screw, a guide rod, a nut seat, cleaning units symmetrically arranged on the two sides of the nut seat in the width direction of the nut seat, and a power unit used for driving the screw to rotate. The screw is rotationally connected with the air bellow; the guide rod is fixedly connected with the air bellow; the nut seat is in threaded connection with the screw rod and is in sliding connection with the guide rod; the cleaning unit comprises a connecting disc and a plurality of bristle layers. The problem that an existing ventilation device cannot clean a filter screen in the filtering period of the filter screen is solved.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel ventilation, and specifically discloses a ventilation device for soft rock tunnel support construction. Background Art

[0002] During tunnel construction, it is necessary to support and protect the tunnel while it is being constructed to prevent collapse and ground subsidence in the tunnel during construction, thereby ensuring the safety of the tunnel and extending the service life of the tunnel. During tunnel construction, due to the small space and poor ventilation conditions in the tunnel, it is easy to pose a serious threat to the health and safety of construction workers. In traditional tunnel ventilation devices, the fan is driven by a drive motor to rotate, so that the air in the tunnel enters from the air inlet, and dust is reduced when passing through the dust filter, and finally discharged from the air outlet, which can realize the circulation of air in the tunnel and reduce the degree of dust in the tunnel; but during the use of the drive motor, if the drive motor is damaged, it needs to be replaced, which is a complicated operation, thereby reducing the ventilation efficiency of the tunnel.

[0003] To solve the above problems, a Chinese patent with publication number CN219605317U discloses a tunnel ventilation device, including a ventilation duct; an air inlet is provided at one end of the ventilation duct; an air outlet is provided at the other end of the ventilation duct; three connecting rod tracks are provided on the inner wall of the inner side of the ventilation duct, and three connecting rods are slidably connected in the connecting rod tracks; a regulator is fixedly connected to the other end of the connecting rod; four circular pillars are fixedly connected to the top of the regulator; a driving motor is fixedly connected to the other end of the circular pillar; one end of the driving motor is rotatably connected to a fan; the ventilation duct is fixed in an external bracket; the bracket is fixed to the top plate; when the driving motor breaks down, the connecting rod is adjusted by the regulator to move in the connecting rod track, and the driving motor is driven to move to the end of the ventilation duct, which is convenient for the maintenance work of the staff.

[0004] The above-mentioned device has the following problems during actual use: 1. The device requires workers to regularly disassemble and remove the filter to replace the filter to ensure that the atmosphere can be smoothly filtered under the action of the filter. However, regular manual disassembly and replacement of the filter will, on the one hand, delay the progress of air treatment and reduce the filtering efficiency, and on the other hand, bring unnecessary trouble to the workers' work and increase the workers' workload; 2. If the filter is not cleaned after being disassembled and is directly discarded, the economic cost will increase. However, if the filter is only cleaned once, some dust will still remain on the filter, reducing the filtering efficiency of the filter. However, if the worker cleans the filter many times, the worker's workload will increase, the work will be cumbersome, and the filter may even be incompletely cleaned, thereby affecting the reuse of the filter. Summary of the invention

[0005] The invention provides a ventilation device for soft rock tunnel support construction, so as to solve the problem that the existing ventilation device cannot clean the filter net during the filtering process.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a ventilation device for soft rock tunnel support construction, including a support frame, and also including a ventilation mechanism arranged on the support frame; the ventilation mechanism includes a bellows with an air inlet and an air outlet, and a ventilation component arranged in the bellows; the ventilation component includes a rotating shaft, fan blades, a filter plate, a cleaning part, and a driving part for driving the rotating shaft to rotate; the rotating shaft is rotatably connected to the bellows; the fan blades and the filter plate are fixedly connected to the rotating shaft; the cleaning part includes a screw, a guide rod, a nut seat, a cleaning unit symmetrically arranged on both sides of the nut seat along the width direction of the nut seat, and a power unit for driving the screw to rotate; the screw is rotatably connected to the bellows; the guide rod is fixedly connected to the bellows; the nut seat is threadedly connected to the screw, and the nut seat is slidably connected to the guide rod; the cleaning unit includes a connecting disk and a plurality of bristle layers; the connecting disk is connected to the nut seat; the plurality of bristle layers are fixedly connected to the connecting disk, and the free ends of the bristle layers are attached to the filter plate.

[0007] The principles and advantages of this solution are:

[0008] 1. The rotation of the fan blades can speed up the flow of air in the tunnel, allowing the air to be quickly exchanged in the tunnel, thereby ensuring the smooth flow of air in the tunnel, thereby enhancing the ventilation effect and improving ventilation efficiency.

[0009] 2. When the air is sucked into the bellows, the dust in the air will be filtered by the filter plate, that is, all the dust in the air will adhere to the filter plate, so that the dust in the air can be separated, and the filtered air is finally discharged through the air outlet; through the above movement, the proportion of dust in the air is reduced, the working environment in the tunnel is improved, and the workers will not be harmed by dust during the construction in the tunnel, thereby protecting the workers' lives and health.

[0010] 3. Through the rotation of the filter plate and the vertical reciprocating motion of the bristle layer, it is ensured that any position on the filter plate can be acted upon by the bristle layer, so that the dust eventually falls to the bottom of the bellows, and the filter plate is no longer adhered to dust, thereby making the filter plate always in an efficient working state, which ensures that the dust that subsequently enters the bellows can adhere to the filter plate as much as possible, further enhancing the filter plate's dust treatment effect on the air.

[0011] Furthermore, it also includes a water outlet part; the water outlet part includes a water tank, a piston cylinder, a piston block, a water storage tank, a hose, a water inlet pipe, a water spray pipe, and a driving unit for driving the piston block to reciprocate along the length direction of the piston cylinder; the water tank and the piston cylinder are both fixedly connected to the bellows; the piston block is slidably connected to the piston cylinder; the water storage tank is fixedly connected to the nut seat; the two ends of the hose are respectively connected to the piston cylinder and the water storage tank; the two ends of the water inlet pipe are respectively connected to the water tank and the piston cylinder; the water spray pipe is connected to the water storage tank, the water spray pipe is communicated with the water storage tank, and the water outlet end of the water spray pipe faces the filter plate.

[0012] The reciprocating motion of the piston block allows liquid to be sprayed out from the water spray pipe; during the water spraying period, the water spray pipe has a certain force, so that the liquid sprayed out from the water spray pipe can act on the filter plate and form splashing liquid, and the splashing liquid will splash around the filter plate, thereby expanding the action range of the splashing liquid, making the splashing liquid contact with the filter plate more fully and comprehensively, enhancing the effect of the splashing liquid, and enabling the liquid to better clean the filter plate, reducing the amount of dust adhering to the filter plate, further enhancing the cleaning effect of the filter plate, and improving the cleaning efficiency of the filter plate.

[0013] Through the above-mentioned movement, under the joint action of the rotation of the filter plate and the vertical reciprocating motion of the water spray pipe, it is ensured that any position on the filter plate can be acted upon by the water spray pipe, further expanding the action range of the water spray pipe and ensuring that the filter plate can be cleaned more completely and fully under the flushing of water.

[0014] Moreover, during the sputtering period, the sputtering liquid can act on the bristle layer, making the bristle layer moist. After the bristle layer is moistened, the cleaning effect on the filter plate is better. The bristle layer can more easily clean the dust adhering to the filter plate, further enhancing the effect of the bristle layer and improving the working efficiency of the bristle layer.

[0015] Furthermore, the water spray pipe is rotatably connected to the water storage tank and the nut seat respectively; the water outlet part also includes a water outlet unit; the water outlet unit includes a first gear and a rack; the first gear is fixedly connected to the water spray pipe; the rack is fixedly connected to the bellows; the first gear is meshed with the rack.

[0016] The first gear meshes with the rack, so that the water spray pipe can rotate; during the rotation of the water spray pipe, the water spray pipe has a certain centrifugal force, and the liquid can diffuse under the action of the centrifugal force, thereby expanding the action range of the water spray pipe, enhancing the effect of the water spray pipe, and allowing the liquid to act on the filter plate over a large area. That is, it ensures that the liquid contacts the filter plate more comprehensively, further enhances the effect of the water spray pipe, and improves the working efficiency of the water spray pipe.

[0017] Furthermore, a second gear is fixedly connected to the water spray pipe; the cleaning unit also includes an auxiliary part; the auxiliary part includes a short shaft and a first annular rack; the short shaft is rotatably connected to the nut seat; the connecting plate is fixedly connected to the short shaft; the first annular rack is fixedly connected to the connecting plate; the second gear is meshed with the first annular rack.

[0018] The bristle layer can rotate by meshing the second gear with the first annular rack. During the rotation of the bristle layer, the bristle layer has a certain force. Therefore, the bristle layer can more easily and fully clean the dust adhering to the filter plate, thereby making the filter plate clean more completely, enhancing the cleaning effect and improving the cleaning efficiency.

[0019] In summary, the vertical reciprocating motion of the bristle layer and the rotation of the bristle layer ensure that the dust adhering to the filter plate can be fully cleaned, which comprehensively enhances the cleaning effect of the filter plate, further improves the filtering efficiency of the filter plate, and fully ensures that the air filtered by the filter plate does not pollute the environment and does not harm the workers.

[0020] Furthermore, the water spray pipe is connected with a rubber tube; it also includes a linkage unit symmetrically arranged on both sides of the water spray pipe along the axial direction of the rubber tube; the linkage unit includes a first guide block, an extrusion block, a first wedge block, a first spring, and a plurality of second wedge blocks; the first guide block is fixedly connected to the nut seat; the extrusion block is slidably connected to the first guide block, and the extrusion block is in contact with the rubber tube; the first wedge block is fixedly connected to the extrusion block; the two ends of the first spring are respectively connected to the extrusion block and the first guide block; the plurality of second wedge blocks are all fixedly connected to the connecting plate; the first wedge block is located on the movement trajectory of the second wedge block.

[0021] Under the joint action of the first wedge block and the second wedge block, the extrusion block can continuously squeeze the rubber tube, causing the rubber tube to continuously deform. During the deformation of the rubber tube, the diameter of the rubber tube will be squeezed and become smaller, thereby increasing the pressure inside the rubber tube, that is, after the rubber tube is deformed, the liquid sprayed from the rubber tube can increase the effective distance of the liquid and enhance the force of the liquid when it is sprayed. As the diameter of the rubber tube gradually returns to its initial state, the effective distance of the liquid also gradually returns to its initial state. Therefore, through the deformation of the rubber tube, the force of the liquid when it is sprayed can be continuously adjusted, thereby ensuring that the liquid can powerfully flush the filter plate, further enhancing the effect of the liquid, and ensuring that the filter plate is cleaned more completely and thoroughly.

[0022] Furthermore, it also includes a vibration part; the vibration part includes a second guide block, a moving block, a limit block, a vibration block, a third wedge block, a fixed block, a second spring, and a motion unit with a plurality of arc-shaped grooves equidistantly opened along the length direction of the fixed block, which is used to drive the moving block to reciprocate along the length direction of the second guide block; the second guide block is fixedly connected to the bellows; the moving block is slidably connected to the second guide block; the limit block is fixedly connected to the moving block; the vibration block is slidably connected to the limit block, and the filter plate is located on the motion trajectory of the vibration block; the third wedge block is fixedly connected to the vibration block; the third wedge block is against the arc-shaped groove; and the two ends of the second spring are respectively connected to the vibration block and the moving block.

[0023] Through the reciprocating motion of the moving block, the third wedge block can continuously drive the vibration block to move closer to the position where the filter plate is located under the action of the wedge surface groove and the second spring. The filter plate is vibrated by the reciprocating collision between the vibration block and the filter plate. The vibrating filter plate can loosen the dust blocked in the filter holes in the filter plate and eventually fall to the bottom of the bellows, thereby ensuring that the dust will not be blocked in the filter holes of the filter plate, further enhancing the filtering effect of the filter plate and improving the filtering capacity of the filter plate, that is, the filter plate can continuously and efficiently filter the dust.

[0024] Through the above movement, with the rotation of the filter plate and the reciprocating motion of the vibration block, it is ensured that any position on the filter plate can be acted upon by the vibration block, thereby expanding the action range of the vibration block and improving the working efficiency of the vibration block.

[0025] Moreover, during the vibration of the filter plate, the adhesion force of dust on the filter plate can be weakened, which enables the brush layer and the rubber tube to better clean the dust; that is, under the joint action of the vibration block, the brush layer and the rubber tube, it is ensured that all dust can be cleaned away, thereby comprehensively enhancing the filtering effect of the filter plate and improving the filtering efficiency.

[0026] Furthermore, it also includes a collecting part; the collecting part includes a collecting block, a long axis, a torsion spring, a lower pressure block, a collecting box with a top opening, a baffle for sealing the collecting box, and a through hole opened on the bellows; the collecting box is fixedly connected to the through hole; the collecting block is connected to the inner wall of the collecting box; the long axis is rotatably connected to the collecting box; the two ends of the torsion spring are respectively connected to the long axis and the collecting box; the lower pressure block is fixedly connected to the nut seat; the baffle is fixedly connected to the long axis, and the baffle is located on the movement trajectory of the lower pressure block.

[0027] The cooperation between the baffle and the pressing block ensures that the baffle will be misaligned with the collection box only when the pressing block moves vertically downward, so that the dust can fall on the collection block. When the baffle seals the collection box, air will not flow into the collection box, so that the dust accumulated on the collection block will not form dust under the action of air, thereby ensuring that the dust accumulated on the collection block will not be disturbed, enhancing the dust collection effect and improving the collection efficiency.

[0028] Furthermore, the collection block is slidably connected to the collection box; it also includes an alarm unit arranged in the collection box; the alarm unit includes a first electrode ball, a second electrode ball, an alarm, and a third spring; the first electrode ball is fixedly connected to the collection block; the second electrode ball and the alarm are both fixedly connected to the bottom of the collection box; the second electrode ball is located on the movement trajectory of the first electrode ball; the first electrode ball, the second electrode ball, the alarm and the power supply are connected to form a series circuit through a wire; and the two ends of the third spring are respectively connected to the collection block and the collection box.

[0029] As the impurities in the collection block gradually increase, the weight gradually increases, causing the collection block to move downward along the height direction of the collection box, and then causing the collection block to drive the first electrode ball to contact the second electrode ball, triggering the alarm to sound. While the alarm continues to sound, workers can clean the dust accumulated on the collection block from the material taking port of the collection box, so that the collection block can be reset under the action of the first spring and prepare to collect dust again. In addition, by accumulating dust on the collection block to trigger the alarm, it is ensured that dust will not accumulate on the alarm, that is, the alarm will not be disturbed by dust, and the alarm can always be in an efficient working state.

[0030] Furthermore, the power unit includes a second annular rack and a third gear; the second annular rack is fixedly connected to the filter plate; the third gear is fixedly connected to the screw rod; and the third gear is meshed with the second annular rack.

[0031] During the forward and reverse rotation of the filter plate, the second annular rack moves synchronously; during the movement of the second annular rack, the third gear is engaged with the second annular rack, thereby rotating the third gear; during the rotation of the third gear, the screw rotates synchronously; therefore, the screw can rotate forward and reverse.

[0032] Furthermore, the driving unit includes a rotating shaft, a first bevel gear, a second bevel gear, a cam, and a fourth spring; the rotating shaft is rotatably connected to the bellows; the first bevel gear is fixed to the screw; the second bevel gear is fixed to the rotating shaft, and the first bevel gear is meshed with the second bevel gear; the cam is fixed to the rotating shaft; the cam is abutted against the piston block; and the two ends of the fourth spring are respectively connected to the piston block and the piston cylinder.

[0033] During the rotation of the screw, the rotating shaft rotates synchronously under the joint action of the first bevel gear and the second bevel gear. During the rotation of the rotating shaft, the cam rotates synchronously. During the rotation of the cam, when the raised portion of the cam abuts against the piston block, the piston block moves away from the position where the hose is located, the piston block pumps water, and the fourth spring is compressed; when the raised portion of the cam no longer abuts against the piston block, the piston block is reset under the action of the fourth spring, the piston block moves toward the position where the hose is located, and the piston block drains water. Therefore, the piston block can reciprocate along the length direction of the piston cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The present invention is a schematic structural diagram of a ventilation device for soft rock tunnel support construction embodiment of the present invention.

[0035] Figure 2 for Figure 1 Schematic diagram of the internal structure of the stroke box.

[0036] Figure 3 for Figure 2 Partial cross-sectional view from the main viewing direction.

[0037] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0038] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0039] Figure 6 for Figure 2 Schematic diagram of the partial structure of the stroke box

[0040] Figure 7 for Figure 6 Enlarged view of point C in the middle.

[0041] Figure 8 for Figure 7 Enlarged view of point D in the middle.

[0042] Fig. 9 for Figure 6 Schematic diagram of the results of the middle cleaning section.

[0043] Fig.10 for Fig. 9 Enlarged view of point E in the middle. DETAILED DESCRIPTION

[0044] The following is further described in detail through specific implementation methods:

[0045] The reference numerals in the drawings of the specification include: support frame 1, bellows 2, mounting plate 3, rotating shaft 4, fan blade 5, filter plate 6, servo motor 7, screw 8, guide rod 9, nut seat 10, connecting plate 11, brush layer 12, water tank 13, piston cylinder 14, piston block 15, water storage tank 16, hose 17, first gear 18, rack 19, second gear 20, first annular rack 21, rubber tube 22, first guide block 23, extrusion block 24, first wedge block 25, second wedge block 26, second guide block 27, shift Moving block 28, limiting block 29, vibrating block 30, third wedge block 31, fixing block 32, second spring 33, collecting block 34, long shaft 35, torsion spring 36, pressing block 37, collecting box 38, baffle 39, first electrode ball 40, second electrode ball 41, alarm 42, third spring 43, second annular rack 44, third gear 45, rotating shaft 46, first bevel gear 47, second bevel gear 48, cam 49, fourth spring 50, fifth spring 51, air inlet 52, air outlet 53, inclined hole 54.

[0046] The embodiment is basically as shown in the attached Figure 1 , 2 , 3, 4, 5, 6, 7, 8, 9, 10 as shown:

[0047] The embodiment of the present invention provides a ventilation device for soft rock tunnel support construction, comprising a support frame 1, and also comprising a ventilation mechanism arranged on the support frame 1; the ventilation mechanism comprises a bellows 2 with an air inlet 52 and an air outlet 53, and a ventilation assembly arranged in the bellows 2; a mounting plate 3 is fixedly connected in the bellows 2; the ventilation assembly comprises a rotating shaft 4, a fan blade 5, a filter plate 6, a cleaning part, and a driving part for driving the rotating shaft 4 to rotate; the rotating shaft 4 is rotatably connected to the mounting plate 3; the driving part is a servo motor 7, the servo motor 7 is fixedly connected to the inner wall of the bellows 2, and the output shaft of the servo motor 7 is fixedly connected to the rotating shaft 4; the fan blade 5 and the filter plate 6 are both fixedly connected to the rotating shaft 4; The cleaning part includes a screw 8, a guide rod 9, a nut seat 10, cleaning units symmetrically arranged on both sides of the nut seat 10 along the width direction of the nut seat 10, and a power unit for driving the screw 8 to rotate; the screw 8 is rotatably connected to the mounting plate 3; the guide rod 9 is fixedly connected to the mounting plate 3; the nut seat 10 is threadedly connected to the screw 8, and the nut seat 10 is slidably connected to the guide rod 9; the cleaning unit includes a connecting disk 11 and a plurality of bristle layers 12; the connecting disk 11 is connected to the nut seat 10; the plurality of bristle layers 12 are equidistantly arranged along the circumferential direction of the connecting disk 11, the bristle layers 12 are fixedly connected to the connecting disk 11, and the free ends of the bristle layers 12 are attached to the filter plate 6.

[0048] The water outlet part includes a water tank 13, a piston cylinder 14, a piston block 15, a water storage tank 16, a hose 17, a water inlet pipe, a water spray pipe, and a driving unit for driving the piston block 15 to reciprocate along the length direction of the piston cylinder 14; the water tank 13 and the piston cylinder 14 are both fixedly connected to the mounting plate 3; there is sufficient clean water in the water tank 13; the piston block 15 is slidably connected to the piston cylinder 14; the water storage tank 16 is fixedly connected to the nut seat 10; the two ends of the hose 17 are respectively connected to the piston cylinder 14 and the storage tank 16; The hose 17 is connected to the water tank 16, and the length of the hose 17 is suitable for the vertical reciprocating motion of the nut seat 10; the hose 17 is provided with a first one-way valve for the liquid to flow from the piston cylinder 14 to the water tank 16 in one direction; the two ends of the water inlet pipe are respectively connected to the water tank 13 and the piston cylinder 14; the water inlet pipe is provided with a second one-way valve for the liquid to flow from the water tank 13 to the piston cylinder 14; the water spray pipe is connected to the water tank 16, the water spray pipe is communicated with the water tank 16, and the water outlet end of the water spray pipe faces the filter plate 6.

[0049] The water spray pipe is rotatably connected to the water tank 16 and the nut seat 10 respectively; the water outlet part also includes a water outlet unit; the water outlet unit includes a first gear 18 and a rack 19; the first gear 18 is fixedly connected to the water spray pipe; the rack 19 is fixedly connected to the mounting plate 3; the first gear 18 is meshed with the rack 19.

[0050] A second gear 20 is fixedly connected to the water spray pipe; the cleaning unit also includes an auxiliary part; the auxiliary part includes a short shaft and a first annular rack 21; the short shaft is rotatably connected to the nut seat 10; the connecting disk 11 is fixedly connected to the short shaft; the first annular rack 21 is fixedly connected to the connecting disk 11; the second gear 20 is located between the two first annular racks 21, and the second gear 20 is meshed with the first annular rack 21.

[0051] The water spray pipe is connected with a rubber tube 22; it also includes a linkage unit symmetrically arranged on both sides of the water spray pipe along the axial direction of the rubber tube 22; the linkage unit includes a first guide block 23, an extrusion block 24, a first wedge block 25, a first spring, and a plurality of second wedge blocks 26; the first guide block 23 is fixedly connected to the nut seat 10, and a first guide groove is opened on the first guide block 23; the extrusion block 24 is slidably connected to the first guide groove, and the extrusion block 24 is in contact with the rubber tube 22; the first wedge block 25 is fixedly connected to one end of the extrusion block 24 away from the rubber block; the two ends of the first spring are respectively connected to the extrusion block 24 and the first guide groove; a plurality of second wedge blocks 26 are all fixedly connected to the connecting plate 11, and the second wedge block 26 is located between two adjacent bristle layers 12; the first wedge block 25 is located on the movement trajectory of the second wedge block 26; a plurality of inclined holes 54 are equidistantly opened in the circumferential direction of the rubber tube 22.

[0052] It also includes a vibration part; the vibration part includes a second guide block 27, a moving block 28, a limit block 29, a vibration block 30, a third wedge block 31, a fixed block 32, a second spring 33, and a plurality of arc grooves equidistantly provided along the length direction of the fixed block 32, and a motion unit for driving the moving block 28 to reciprocate along the length direction of the second guide block 27; the second guide block 27 is fixedly connected to the mounting plate 3, and a second guide groove is provided on the second guide block 27; the moving block 28 is slidably connected to the second guide groove; the limit block 29 is fixedly connected to the moving block 28; the vibration block 30 is slidably connected to the limit block 29, and the filter plate 6 is located on the motion trajectory of the vibration block 30; the third wedge block 31 is fixedly connected to the vibration block 30; the third wedge block 31 is against the arc groove; the two ends of the second spring 33 are respectively connected to the vibration block 30 and the moving block 28.

[0053] It also includes a collecting part; the collecting part includes a collecting block 34, a long axis 35, a torsion spring 36, a pressing block 37, a collecting box 38 with a top opening, a baffle 39 for sealing the collecting box 38, and a through hole opened on the bellows 2; the collecting box 38 is fixedly connected to the through hole; the collecting block 34 is connected to the inner wall of the collecting box 38; the long axis 35 is rotatably connected to the inner wall of the collecting box 38; the two ends of the torsion spring 36 are respectively connected to the long axis 35 and the inner wall of the collecting box 38; the pressing block 37 is fixedly connected to the nut seat 10; the baffle 39 is fixedly connected to the long axis 35, and the baffle 39 is located on the movement trajectory of the pressing block 37.

[0054] The collecting block 34 is slidably connected to the inner wall of the collecting box 38; it also includes an alarm unit arranged in the collecting box 38; the alarm unit includes a first electrode ball 40, a second electrode ball 41, an alarm 42, and a third spring 43; the first electrode ball 40 is fixedly connected to the bottom of the collecting block 34; the second electrode ball 41 and the alarm 42 are both fixedly connected to the bottom of the collecting box 38; the second electrode ball 41 is located on the movement trajectory of the first electrode ball 40; the first electrode ball 40, the second electrode ball 41, the alarm 42 and the power supply are connected to form a series circuit through a wire; the two ends of the third spring 43 are respectively connected to the collecting block 34 and the inner wall of the collecting box 38.

[0055] The power unit includes a second annular rack 44 and a third gear 45 ; the second annular rack 44 is fixedly connected to the filter plate 6 ; the second annular rack 44 is in contact with the inner wall of the bellows 2 ; the third gear 45 is fixedly connected to the screw 8 ; the third gear 45 is meshed with the second annular rack 44 .

[0056] The driving unit includes a rotating shaft 46, a first bevel gear 47, a second bevel gear 48, a cam 49, and a fourth spring 50; the rotating shaft 46 is rotatably connected to the mounting plate 3; the first bevel gear 47 is fixedly connected to the screw rod 8; the second bevel gear 48 is fixedly connected to the rotating shaft 46, and the first bevel gear 47 is meshed with the second bevel gear 48; the cam 49 is fixedly connected to the rotating shaft 46; the cam 49 is against the piston block 15; the fourth spring 50 is sleeved on the piston block 15, and the two ends of the fourth spring 50 are respectively connected to the piston block 15 and the piston cylinder 14.

[0057] The moving unit is a fifth spring 51 ; two ends of the fifth spring 51 are respectively connected to the moving block 28 and the second guide groove; and the cam 49 abuts against the moving block 28 .

[0058] Specific implementation process:

[0059] The support frame 1 is installed in the tunnel so that the support frame 1 can support the tunnel, reduce the risk of tunnel collapse, and thus ensure the construction safety of workers in the tunnel.

[0060] During construction, the worker starts the servo motor 7, and the output shaft of the servo motor 7 drives the shaft 4 to rotate forward and reverse. During the rotation of the shaft 4, the fan blades 5 rotate synchronously. The rotation of the fan blades 5 can speed up the flow of air in the tunnel, so that the air can be quickly exchanged in the tunnel, thereby ensuring the smooth flow of air in the tunnel, thereby enhancing the ventilation effect and improving the ventilation efficiency.

[0061] When the fan blades 5 rotate, air will be sucked into the bellows 2, and dust in the air will be filtered under the action of the filter plate 6, that is, the dust in the air will all adhere to the filter plate 6, so that the dust in the air is separated, and the filtered air is finally discharged through the air outlet 53. Through the above movement, the proportion of dust in the air is reduced, the working environment in the tunnel is improved, and it is ensured that the workers will not be harmed by dust during the construction in the tunnel, thereby protecting the life and health of the workers.

[0062] During the rotation of the filter plate 6, the second annular rack 44 rotates synchronously; during the rotation of the second annular rack 44, the third gear 45 rotates because the second annular rack 44 meshes with the third gear 45. During the rotation of the third gear 45, the screw 8 rotates synchronously, so the screw 8 can rotate forward and reverse. During the rotation of the screw 8, the screw 8 seat can make vertical reciprocating motion along the length direction of the guide rod 9. During the movement of the nut seat 10, the bristle layer 12 moves synchronously.

[0063] Through the above-mentioned movement, under the joint action of the rotation of the filter plate 6 and the vertical reciprocating movement of the bristle layer 12, it is ensured that any position on the filter plate 6 can be acted upon by the bristle layer 12, so that the dust eventually falls to the bottom of the bellows 2, and no dust adheres to the filter plate 6, thereby making the filter plate 6 always in an efficient working state, that is, ensuring that the dust subsequently entering the bellows 2 can adhere to the filter plate 6 as much as possible, further enhancing the filter plate 6 The dust treatment effect of the dust in the air is further enhanced.

[0064] During the rotation of the screw rod 8, the screw rod 8 drives the rotating shaft 46 to rotate through the meshing of the first bevel gear 47 and the second bevel gear 48. During the rotation of the rotating shaft 46, the cam 49 rotates synchronously. During the rotation of the cam 49, when the raised portion of the cam 49 abuts against the piston block 15, the piston block 15 moves away from the position where the hose 17 is located, the piston block 15 pumps water, and the fourth spring 50 is compressed; when the raised portion of the cam 49 no longer abuts against the piston block 15, the piston block 15 is reset under the action of the fourth spring 50, the piston block 15 moves to the position close to the hose 17, and the piston block 15 drains water. Therefore, the piston block 15 can reciprocate along the length direction of the piston cylinder 14.

[0065] The liquid can be sprayed out from the water spray pipe by the reciprocating motion of the piston block 15. During the water spraying period, the water spray pipe has a certain force, so that the liquid sprayed from the water spray pipe can act on the filter plate 6 and form a splashing liquid, and the splashing liquid will splash around the filter plate 6, thereby expanding the action range of the splashing liquid, making the splashing liquid contact with the filter plate 6 more fully and more comprehensively, enhancing the effect of the splashing liquid, allowing the liquid to better clean the filter plate 6, reducing the amount of dust adhering to the filter plate 6, further enhancing the cleaning effect of the filter plate 6, and improving the cleaning efficiency of the filter plate 6.

[0066] Through the above-mentioned movement, under the joint action of the rotation of the filter plate 6 and the vertical reciprocating motion of the water spray pipe, it is ensured that any position on the filter plate 6 can be acted upon by the water spray pipe, further expanding the range of action of the water spray pipe, and ensuring that the filter plate 6 can be cleaned more completely and fully under the flushing of water.

[0067] Moreover, during the sputtering period, the sputtering liquid can act on the bristle layer 12, making the bristle layer 12 moistened. After the bristle layer 12 is moistened, the cleaning effect on the filter plate 6 is better. The bristle layer 12 can more easily clean the dust adhering to the filter plate 6, further enhancing the effect of the bristle layer 12 and improving the working efficiency of the bristle layer 12.

[0068] During the vertical reciprocating motion of the water spray pipe, the first gear 18 is meshed with the rack 19, so that the water spray pipe can rotate. During the rotation of the water spray pipe, the water spray pipe has a certain centrifugal force, and the liquid can diffuse under the action of the centrifugal force, thereby expanding the action range of the water spray pipe, enhancing the effect of the water spray pipe, and allowing the liquid to act on the filter plate 6 over a large area. That is, it ensures that the liquid contacts the filter plate 6 more comprehensively, further enhances the effect of the water spray pipe, and improves the working efficiency of the water spray pipe.

[0069] During the rotation of the water spray pipe, the second gear 20 is meshed with the first annular rack 21, so that the bristle layer 12 can rotate. During the rotation of the bristle layer 12, the bristle layer 12 has a certain force. Therefore, the bristle layer 12 can more easily and fully clean the dust adhering to the filter plate 6, thereby making the filter plate 6 cleaned more completely, enhancing the cleaning effect and improving the cleaning efficiency.

[0070] In summary, the vertical reciprocating motion of the bristle layer 12 and the rotation of the bristle layer 12 ensure that the dust adhering to the filter plate 6 can be fully cleaned, that is, the cleaning effect of the filter plate 6 is comprehensively enhanced, the filtering efficiency of the filter plate 6 is further improved, and it is fully ensured that the air after being filtered by the filter plate 6 does not pollute the environment and does not harm the workers.

[0071] During the rotation of the connecting plate 11, when the second wedge block 26 abuts against the first wedge block 25, the first wedge block 25 drives the extrusion block 24 to extrude the rubber tube 22, and the first spring is compressed. When the second wedge block 26 no longer abuts against the first wedge block 25, the first spring drives the extrusion block 24 to reset. Therefore, the extrusion block 24 can reciprocate along the length direction of the first guide block 23.

[0072] Through the above movement, the extrusion block 24, under the joint action of the first wedge block 25 and the second wedge block 26, can continuously squeeze the rubber tube 22, so that the rubber tube 22 is continuously deformed. During the deformation of the rubber tube 22, the diameter of the rubber tube 22 will be squeezed and reduced, so that the pressure inside the rubber tube 22 becomes larger, that is, the liquid sprayed from the rubber tube 22 can increase the effective distance of the liquid after the rubber tube 22 is deformed, and the force of the liquid when spraying is enhanced. During the period when the diameter of the rubber tube 22 gradually returns to the initial state, the effective distance of the liquid also gradually returns to the initial state. Therefore, through the deformation of the rubber tube 22, the force of the liquid when spraying can be continuously adjusted, thereby ensuring that the liquid can powerfully flush the filter plate 6, further enhancing the effect of the liquid, and ensuring that the filter plate 6 is cleaned more completely and thoroughly.

[0073] The inclined hole 54 is provided so that when the rubber tube 22 is deformed, the liquid can be sprayed out from the inclined hole 54 under the condition of increased pressure, so that the liquid acts on the bristle layer 12, that is, the bristle layer 12 can become more moist, further enhancing the cleaning effect of the bristle layer 12 on the filter plate 6.

[0074] During the rotation of the cam 49, when the protrusion of the cam 49 abuts against the moving block 28, the moving block 28 moves away from the position where the rotating shaft 46 is located along the length direction of the second guide groove, and the fifth spring 51 is compressed; when the protrusion of the cam 49 no longer abuts against the moving block 28, the moving block 28 is reset under the action of the fifth spring 51. Therefore, the moving block 28 can reciprocate along the length direction of the second guide groove.

[0075] During the movement of the moving block 28, the vibration block 30 moves synchronously; during the movement of the vibration block 30, the vibration block 30 can continuously approach or move away from the filter plate 6 under the joint action of the third wedge block 31, the wedge groove, and the second spring 33. That is, through the reciprocating motion of the moving block 28, the third wedge block 31 can continuously drive the vibration block 30 to move close to the position where the filter plate 6 is located under the action of the wedge groove and the second spring 33. The reciprocating collision between the vibration block 30 and the filter plate 6 causes the filter plate 6 to vibrate. The vibrating filter plate 6 can loosen the dust blocked in the filter hole of the filter plate 6 and eventually fall to the bottom of the bellows 2, thereby ensuring that the dust will not be blocked in the filter hole of the filter plate 6, further enhancing the filtering effect of the filter plate 6, and improving the filtering capacity of the filter plate 6, that is, the filter plate 6 can continuously and efficiently filter the dust.

[0076] Through the above movement, with the rotation of the filter plate 6 and the reciprocating motion of the vibration block 30, it is ensured that any position on the filter plate 6 can be acted upon by the vibration block 30, thereby expanding the action range of the vibration block 30 and improving the working efficiency of the vibration block 30.

[0077] Moreover, during the vibration of the filter plate 6, the adhesion force of dust on the filter plate 6 can be weakened, which enables the bristle layer 12 and the rubber tube 22 to better clean the dust; that is, under the joint action of the vibration block 30, the bristle layer 12, and the rubber tube 22, it is ensured that the dust can be completely cleaned, thereby comprehensively enhancing the filtering effect of the filter plate 6 and improving the filtering efficiency.

[0078] During the movement of the nut seat 10, the pressing block 37 moves synchronously. The cooperation between the baffle 39 and the pressing block 37 ensures that only when the pressing block 37 moves vertically downward, the baffle 39 will be misaligned with the collection box 38 under the pressure of the pressing block 37, so that the dust can fall on the collection block 34. During the vertical upward movement of the pressing block 37, the baffle 39 is reset under the action of the torsion spring 36, so that the baffle 39 seals the collection box 38. During the period when the baffle 39 seals the collection box 38, air will not be poured into the collection box 38, so that the dust accumulated on the collection block 34 will not form dust under the action of air, thereby ensuring that the dust accumulated on the collection block 34 will not be disturbed, enhancing the dust collection effect and improving the collection efficiency.

[0079] As the impurities in the collection block 34 gradually increase, the weight also gradually increases, causing the collection block 34 to move downward along the height direction of the collection box 38, and then causing the collection block 34 to drive the first electrode ball 40 to contact the second electrode ball 41, triggering the alarm 42 to alarm. While the alarm 42 continues to alarm, the worker can clean the dust accumulated on the collection block 34 from the material taking port of the collection box 38, so that the collection block 34 can be reset under the action of the first spring and prepare for collecting dust again. In addition, by accumulating dust on the collection block 34 to trigger the alarm 42 to alarm, it is ensured that dust will not accumulate on the alarm 42, that is, the alarm 42 will not be disturbed by dust, ensuring that the alarm 42 can always be in an efficient working state.

[0080] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A ventilation device for soft rock tunnel support construction, comprising a support frame, characterized in that: It also includes a ventilation mechanism arranged on the support frame; the ventilation mechanism includes a bellows with an air inlet and an air outlet, and a ventilation component arranged in the bellows; the ventilation component includes a rotating shaft, fan blades, a filter plate, a cleaning part, and a driving part for driving the rotating shaft to rotate; the rotating shaft is rotatably connected to the bellows; the fan blades and the filter plate are fixedly connected to the rotating shaft; the cleaning part includes a screw, a guide rod, a nut seat, a cleaning unit symmetrically arranged on both sides of the nut seat along the width direction of the nut seat, and a power unit for driving the screw to rotate; the screw is rotatably connected to the bellows; the guide rod is fixedly connected to the bellows; the nut seat is threadedly connected to the screw, and the nut seat is slidably connected to the guide rod; the cleaning unit includes a connecting disk and a plurality of bristle layers; the connecting disk is connected to the nut seat; the plurality of bristle layers are fixedly connected to the connecting disk, and the free ends of the bristle layers are attached to the filter plate.

2. A ventilation device for soft rock tunnel support construction according to claim 1, characterized in that: It also includes a water outlet part; the water outlet part includes a water tank, a piston cylinder, a piston block, a water storage tank, a hose, a water inlet pipe, a water spray pipe, and a driving unit for driving the piston block to reciprocate along the length direction of the piston cylinder; the water tank and the piston cylinder are both fixedly connected to the bellows; the piston block is slidably connected to the piston cylinder; the water storage tank is fixedly connected to the nut seat; the two ends of the hose are respectively connected to the piston cylinder and the water storage tank; the two ends of the water inlet pipe are respectively connected to the water tank and the piston cylinder; the water spray pipe is connected to the water storage tank, the water spray pipe is communicated with the water storage tank, and the water outlet end of the water spray pipe faces the filter plate.

3. A ventilation device for soft rock tunnel support construction according to claim 2, characterized in that: The water spray pipe is rotatably connected to the water storage tank and the nut seat respectively; the water outlet part also includes a water outlet unit; the water outlet unit includes a first gear and a rack; the first gear is fixedly connected to the water spray pipe; the rack is fixedly connected to the bellows; the first gear is meshed with the rack.

4. A ventilation device for soft rock tunnel support construction according to claim 3, characterized in that: A second gear is fixedly connected to the water spray pipe; the cleaning unit also includes an auxiliary part; the auxiliary part includes a short shaft and a first annular rack; the short shaft is rotatably connected to the nut seat; the connecting plate is fixedly connected to the short shaft; the first annular rack is fixedly connected to the connecting plate; the second gear is meshed with the first annular rack.

5. A ventilation device for soft rock tunnel support construction according to claim 4, characterized in that: The water spray pipe is connected with a rubber tube; it also includes a linkage unit symmetrically arranged on both sides of the water spray pipe along the axial direction of the rubber tube; the linkage unit includes a first guide block, an extrusion block, a first wedge block, a first spring, and a plurality of second wedge blocks; the first guide block is fixedly connected to the nut seat; the extrusion block is slidably connected to the first guide block, and the extrusion block is in contact with the rubber tube; the first wedge block is fixedly connected to the extrusion block; the two ends of the first spring are respectively connected to the extrusion block and the first guide block; the plurality of second wedge blocks are all fixedly connected to the connecting plate; the first wedge block is located on the movement trajectory of the second wedge block.

6. A ventilation device for soft rock tunnel support construction according to claim 5, characterized in that: It also includes a vibration part; the vibration part includes a second guide block, a moving block, a limit block, a vibration block, a third wedge block, a fixed block, a second spring, and a motion unit with a plurality of arc grooves equidistantly opened along the length direction of the fixed block, which is used to drive the moving block to reciprocate along the length direction of the second guide block; the second guide block is fixedly connected to the bellows; the moving block is slidably connected to the second guide block; the limit block is fixedly connected to the moving block; the vibration block is slidably connected to the limit block, and the filter plate is located on the motion track of the vibration block; the third wedge block is fixedly connected to the vibration block; the third wedge block is against the arc groove; and the two ends of the second spring are respectively connected to the vibration block and the moving block.

7. A ventilation device for soft rock tunnel support construction according to claim 6, characterized in that: It also includes a collecting part; the collecting part includes a collecting block, a long axis, a torsion spring, a pressing block, a collecting box with an opening on the top, a baffle for sealing the collecting box, and a through hole opened on the bellows; the collecting box is fixedly connected to the through hole; the collecting block is connected to the inner wall of the collecting box; the long axis is rotatably connected to the collecting box; the two ends of the torsion spring are respectively connected to the long axis and the collecting box; the pressing block is fixedly connected to the nut seat; the baffle is fixedly connected to the long axis, and the baffle is located on the movement trajectory of the pressing block.

8. A ventilation device for soft rock tunnel support construction according to claim 7, characterized in that: The collection block is slidably connected to the collection box; it also includes an alarm unit arranged in the collection box; the alarm unit includes a first electrode ball, a second electrode ball, an alarm, and a third spring; the first electrode ball is fixedly connected to the collection block; the second electrode ball and the alarm are both fixedly connected to the bottom of the collection box; the second electrode ball is located on the movement trajectory of the first electrode ball; the first electrode ball, the second electrode ball, the alarm and the power supply are connected to form a series circuit through a wire; and the two ends of the third spring are respectively connected to the collection block and the collection box.

9. A ventilation device for soft rock tunnel support construction according to claim 8, characterized in that: The power unit comprises a second annular rack and a third gear; the second annular rack is fixedly connected to the filter plate; the third gear is fixedly connected to the screw rod; and the third gear is meshed with the second annular rack.

10. A ventilation device for soft rock tunnel support construction according to claim 9, characterized in that: The driving unit includes a rotating shaft, a first bevel gear, a second bevel gear, a cam, and a fourth spring; the rotating shaft is rotatably connected to the bellows; the first bevel gear is fixedly connected to the screw; the second bevel gear is fixedly connected to the rotating shaft, and the first bevel gear is meshed with the second bevel gear; the cam is fixedly connected to the rotating shaft; the cam is abutted against the piston block; the two ends of the fourth spring are respectively connected to the piston block and the piston cylinder.

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