Oil leakage prevention exhaust device for blower

Abstract

The present invention belongs to the technical field of blowers, and specifically is an anti-oil leakage exhaust device for a blower, comprising a shell, a cylindrical block sliding and sealingly connected inside the shell, the cylindrical block being elastically connected to the top of the inner wall of the shell, a T-shaped exhaust hole being provided inside the cylindrical block, and exhaust holes being provided on both sides of the shell; a sliding mechanism, the sliding mechanism comprising two groups of ropes arranged on both sides of the upper end of the cylindrical block and a cover plate slidably arranged on both sides of the shell, one end of the rope being fixedly connected to the upper end of the cylindrical block, the rope being fixedly connected to the cover plate, and the cover plate being elastically connected to a first fixed block; when the cylindrical block is pushed upward by the pressure in the oil tank, the elastic force of the second spring pulls the cover plate downward, and the cover plate is driven by the rope to slide under the exhaust hole, so that the exhaust hole is exposed to the outside for exhaust work, and after the exhaust is completed, the cylindrical block slides downward so that the cover plate coincides with the exhaust hole, thereby solving the problem that the exhaust hole is exposed to the outside and blocked by dust and impurities.

Description

Technical Field

[0001] The invention belongs to the technical field of blowers, in particular to an oil leakage preventing exhaust device for a blower. Background Art

[0002] During the operation of the blower used in industrial production, the gears in the oil tank rotate at high speed, causing the air pressure in the oil tank to increase. If the gas is not discharged in time, oil spraying will occur, causing the lubricating oil to leak and contaminate the blower.

[0003] Existing blower exhaust devices generally use a simple plug and hole method, which is suitable for blowers with low fan boost pressure. The exhaust hole is generally exposed to the outside, and the exhaust device and the oil tank filling hole are generally connected by threads. When refueling, the exhaust device needs to be rotated to separate from the oil tank for refueling.

[0004] Most of the existing blower exhaust devices are suitable for blowers with low blower pressure. When used for blowers with high blower pressure, oil leakage and oil spraying will occur. Moreover, the oil and gas in the gas will stick to the inner wall of the exhaust hole during exhaust. The exhaust hole is exposed to the outside world. Long-term contact with external impurities and dust will form stubborn oil stains that accumulate on the inner wall of the exhaust hole, affecting exhaust and even blocking the exhaust hole. The exhaust device and the oil tank filling hole are threadedly connected, which is troublesome to disassemble and install, affecting work efficiency.

[0005] To this end, the present invention provides an oil leakage-proof exhaust device for a blower. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the present invention describes an anti-oil leakage exhaust device for a blower, comprising a shell, a cylindrical block sliding and sealingly connected inside the shell, the cylindrical block being elastically connected to the top of the inner wall of the shell, a T-shaped exhaust hole being provided inside the cylindrical block, and exhaust holes being provided on both sides of the shell; a sliding mechanism, the sliding mechanism comprising two groups of ropes arranged on both sides of the upper end of the cylindrical block and a cover plate slidably arranged on both sides of the shell, one end of the rope being fixedly connected to the upper end of the cylindrical block, the other end of the rope being fixedly connected to the top surface of the cover plate, the lower end of the cover plate being elastically connected to a first fixed block, and the first fixed block being fixedly connected to the shell; a plurality of oil baffles are provided inside the cylindrical block with the T-shaped exhaust hole, the oil baffles are staggered and a gap is left between adjacent two oil baffles.

[0008] Furthermore, a first spring is fixedly connected to the top of the cylindrical block, the upper end of the first spring is fixedly connected to the top of the inner wall of the shell, and a circular ring is fixedly connected to the inside of the shell; when there is air pressure in the oil tank, the air pressure in the oil tank pushes the cylindrical block upward to squeeze the first spring until the cylindrical block contacts the circular ring, and at the same time, the circular holes on both sides of the T-shaped exhaust hole provided inside the cylindrical block coincide with the exhaust holes provided on both sides of the shell, so that the gas in the oil tank enters from the bottom of the T-shaped exhaust hole and is discharged from the exhaust hole.

[0009] Furthermore, the rope passes through the top of the shell, and pulleys are fixedly connected on both sides of the top of the shell, the rope is slidably connected to the pulley, and the lower end of the cover plate is fixedly connected to the first fixed block through the second spring; when there is pressure in the oil tank to push the cylindrical block upward, the elastic force of the second spring pulls the cover plate downward, and at the same time drives the rope to slide on the pulley, so that the cover plate slides under the exhaust hole, so that the exhaust hole is exposed to the outside for exhaust work. After the exhaust is completed, the cylindrical block slides downward, and the rope is pulled to drive the cover plate to slide upward, so that the cover plate coincides with the exhaust hole. Under normal conditions, the exhaust hole will not be exposed to the air to prevent dust and impurities from clogging the exhaust hole and affecting the exhaust effect.

[0010] Furthermore, a cleaning mechanism is provided on both sides of the shell, and the cleaning mechanism includes a drill rod, one end of the drill rod is provided with a drill bit assembly, one end of the drill rod is fixedly connected to a gear ring, the gear ring is rotatably connected to a first rectangular block, a gear is meshed above the gear ring, the gear is fixedly connected to the output end of the motor, the motor is fixedly connected to the first rectangular block through a motor seat, the upper end of the first rectangular block is fixedly connected to a second fixed block, the second fixed block is fixedly connected to an electric telescopic rod, and the piston end of the electric telescopic rod is fixedly connected to the shell; when the cylindrical block slides upward and the cover plate slides downward to stagger with the exhaust hole, the exhaust hole is blocked, and the oil in the tank is When the pressure cannot be discharged in time, the air pressure sensor provided at the lower end of the cylindrical block detects the pressure in the oil tank. When the air pressure reaches a certain threshold, the electric telescopic rod is started to contract, driving the telescopic plate to contract. The telescopic plate drives the first rectangular block to approach the shell. The first rectangular block drives the ring gear, the gear and the drill rod to move until the drill rod extends into the exhaust hole. Then the motor is started to drive the gear to rotate, the gear drives the ring gear to rotate, and the ring gear drives the drill rod to rotate to remove impurities attached to the side wall of the exhaust hole. After dredging, the gas in the oil tank is discharged from the exhaust hole to the outside, and the cleaned impurities are blown out from the inside of the drill rod. The exhaust hole can be dredged and exhausted in time to prevent impurities from entering the oil tank.

[0011] Furthermore, a circular hole is provided in the middle of the first rectangular block, and telescopic plates are fixedly connected to both sides of the first rectangular block. The end of the telescopic plate away from the first rectangular block is fixedly connected to the shell. The drill rod is a hollow circular tube, and a drill bit assembly is provided at one end of the drill rod; the circular hole provided in the middle of the first rectangular block facilitates the discharge of impurities cleaned by the drill rod, and when the electric telescopic rod drives the drill rod to move, the telescopic plate limits the drill rod, so that the drill rod and the exhaust hole always remain aligned.

[0012] Furthermore, the drill bit assembly includes several rectangular grooves opened at one end of the drill rod, and a rotating shaft is rotatably arranged in the rectangular groove. One side of the rotating shaft is fixedly connected to one side of the rectangular groove by a torsion spring, and a cleaning blade is fixedly connected to the rotating shaft; since the drill rod needs to be extended into the exhaust hole for cleaning, the diameter of the drill rod is slightly smaller than the exhaust hole, resulting in the drill rod being unable to contact the inner wall of the exhaust hole during cleaning, and the cleaning is not thorough. When the drill rod rotates, the cleaning blade rotates outward under the action of centrifugal force, so that the cleaning blade contacts the inner wall of the exhaust hole for cleaning. After cleaning, the drill rod stops rotating and the centrifugal force disappears. The cleaning blade is pulled back under the action of the torsion spring, making it convenient for the drill rod to be pulled out of the exhaust hole.

[0013] Furthermore, a fixing mechanism is provided on both sides of the shell, and the fixing mechanism includes a rectangular block fixedly connected to both sides of the shell, a first rectangular hole is opened at the upper end of the rectangular block, and a second rectangular hole is opened on one side of the rectangular block, and a tightening mechanism is slidably connected in the first rectangular hole, and the tightening mechanism is used to clamp the special-shaped groove opened at the upper end of the oil tank, one side of the tightening mechanism is elastically connected to the shell, and the other side of the tightening mechanism is fixedly connected to a third rectangular block, and the third rectangular block is slidably set in the second rectangular hole; when it is necessary to refuel the oil tank, the third rectangular block is pressed to slide in the second rectangular hole to drive the lower end of the tightening mechanism to slide in the special-shaped groove, and then it is pulled upward until it is out of the special-shaped groove, so that the exhaust device is separated from the oil tank, which is convenient for refueling the oil tank. After refueling is completed, the cylindrical block is aligned with the oil filling hole, and the lower ends of the tightening mechanisms on both sides are aligned with the special-shaped groove and pressed downward to install the exhaust device on the oil tank, which is convenient for disassembly and assembly.

[0014] Furthermore, the tensioning mechanism includes an L-shaped slider, one side of which is fixedly connected to the shell by a third spring, a rectangular groove is provided at the lower end of the L-shaped slider, and a pointed slider is elastically connected to the rectangular groove, and a third rectangular hole is provided at the upper end of the L-shaped slider, and a U-shaped block is slidably connected in the third rectangular hole, and the lower end of the U-shaped block is fixedly connected to the pointed slider; during installation, align the pointed slider with the special-shaped groove, press downward to make the pointed slider slide toward the middle to squeeze the third spring, and then push the U-shaped block downward to make the pointed slider slide downward until the lower end of the pointed slider contacts the special-shaped groove, at which time the third spring releases the elastic force to push the pointed slider to overlap with the special-shaped groove, so that the exhaust device is installed on the fuel tank.

[0015] Furthermore, the lower end of the L-shaped slider is fixedly connected to the pointed slider through a fourth spring, and the lower end of the pointed slider can slide in the special-shaped groove opened at the upper end of the fuel tank; during installation, the U-shaped block is pushed downward to drive the pointed slider to stretch the fourth spring downward. When the pointed slider slides and is fixed to the special-shaped groove, the fourth spring is always in a tightened state. Since the sealing ring is made of rubber material, the elastic force decreases after long-term use, causing the sealing ring to shrink. When the sealing ring shrinks, the exhaust device and the fuel tank are always tightly fitted under the tension of the fourth spring.

[0016] Furthermore, a sealing ring is installed at the lower end of the shell, and an air pressure sensor is installed at the lower end of the cylindrical block. The air pressure sensor, motor and electric telescopic rod are electrically connected. During installation, the sealing ring installed at the lower end of the shell fits tightly around the oil filling hole provided at the upper end of the oil tank to prevent oil leakage from the gap. The air pressure sensor installed at the lower end of the cylindrical block is convenient for real-time detection of the air pressure in the oil tank. If blockage occurs, the motor and the electric telescopic rod are immediately started to drive the drill rod to clear and exhaust the exhaust hole in time.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention relates to an anti-oil leakage exhaust device for a blower. When the cylindrical block is pushed upward by the pressure in the oil tank, the elastic force of the second spring pulls the cover plate downward, and at the same time drives the rope to slide on the pulley, so that the cover plate slides under the exhaust hole, exposing the exhaust hole to the outside for exhaust work. After the exhaust is completed, the cylindrical block slides downward, and the rope is pulled to drive the cover plate to slide upward, so that the cover plate coincides with the exhaust hole. When the exhaust is not in progress, the exhaust hole will not be exposed to the air, thereby solving the problem of the exhaust hole being exposed to the outside and blocked by dust and impurities.

[0019] When the air pressure in the oil tank is blocked, the air in the oil tank cannot be discharged in time, so the air pressure sensor at the lower end of the cylindrical block detects the pressure in the oil tank. When the air pressure reaches a certain threshold, the electric telescopic rod is activated to retract and the telescopic plate is retracted. The telescopic plate drives the first rectangular block to move closer to the shell body, and the first rectangular block drives the gear ring, the gear and the drill rod to move until the drill rod is inserted into the exhaust hole. Then the motor is started to drive the gear to rotate, the gear drives the gear ring to rotate, and the gear ring drives the drill rod to rotate, thereby removing impurities attached to the side wall of the exhaust hole. After dredging, the gas in the oil tank 1 is discharged outward from the exhaust hole, and the cleaned impurities are blown out from the inside of the drill rod to the outside, so that the exhaust hole can be dredged and exhausted in time, thereby solving the problem that the exhaust hole is blocked and cannot be exhausted and the exhaust hole is cleaned, and the function of automatic pressure measurement and automatic cleaning is realized to discharge impurities outward.

[0020] 3. The present invention describes an anti-oil leakage exhaust device for a blower, which drives the pointed slider to stretch the fourth spring downward by pushing the U-shaped block downward. When the pointed slider slides and is fixed to the special-shaped groove, the fourth spring is always in a tightened state. Since the sealing ring is made of rubber, its elasticity decreases over a long period of use, causing the sealing ring to shrink. When the sealing ring shrinks, the exhaust device and the oil tank are always tightly fitted under the tension of the fourth spring, which solves the problem of troublesome disassembly and installation of the exhaust device and the oil filling hole of the oil tank using threaded connection, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is a perspective view of embodiment 1 of the present invention;

[0023] Figure 2 It is an exploded view of the lower end of the shell;

[0024] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0025] Figure 4 This is an enlarged view of the explosion inside the shell;

[0026] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0027] Figure 6 is a sectional perspective view of the interior of the shell;

[0028] Figure 7 yes Figure 6 A partial enlarged view of point C in the middle;

[0029] Figure 8 is a side sectional perspective view of the shell;

[0030] Figure 9 yes Figure 8 A partial enlarged view of point D in the middle;

[0031] Figure 10 This is an exploded and enlarged view of the interior of the rectangular block;

[0032] In the figure: 1. oil tank; 2. oil filling hole; 3. special-shaped groove; 4. shell; 5. cylindrical block; 6. first spring; 7. rope; 8. pulley; 9. cover plate; 10. second spring; 11. first fixed block; 12. telescopic plate; 13. first rectangular block; 14. motor; 15. second fixed block; 16. electric telescopic rod; 17. gear; 18. gear ring; 19. drill rod; 20. ring; 21. third spring; 22. rectangular block; 23. U-shaped block; 24. L-shaped slider; 25. third rectangular block; 26. fourth spring; 27. pointed slider; 28. oil baffle; 29. ​​T-shaped exhaust hole; 30. exhaust hole; 31. sealing ring; 32. cleaning blade; 33. torsion spring; 34. first rectangular hole; 35. second rectangular hole; 36. third rectangular hole; 37. rectangular groove; 38. air pressure sensor. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0034] Example 1

[0035] like Figures 1 to 4 As shown, an anti-oil leakage exhaust device for a blower according to an embodiment of the present invention includes a housing 4, a cylindrical block 5 is slidably and sealingly connected to the interior of the housing 4, the cylindrical block 5 is elastically connected to the top of the inner wall of the housing 4, a T-shaped exhaust hole 29 is provided inside the cylindrical block 5, and exhaust holes 30 are provided on both sides of the housing 4;

[0036] The sliding mechanism includes two groups of ropes 7 arranged on both sides of the upper end of the cylindrical block 5 and cover plates 9 slidably arranged on both sides of the housing 4. One end of the rope 7 is fixedly connected to the upper end of the cylindrical block 5, and the other end of the rope 7 is fixedly connected to the top surface of the cover plate 9. The lower end of the cover plate 9 is elastically connected to a first fixing block 11, and the first fixing block 11 is fixedly connected to the housing 4;

[0037] The cylindrical block 5 is provided with a T-shaped exhaust hole 29 and a plurality of oil baffles 28 therein. The oil baffles 28 are arranged in a staggered manner and a gap is left between two adjacent oil baffles 28 .

[0038] like Figure 6 As shown, the top of the cylindrical block 5 is fixedly connected to a first spring 6, the upper end of the first spring 6 is fixedly connected to the top of the inner wall of the shell 4, and the inside of the shell 4 is fixedly connected to a ring 20; when there is air pressure in the fuel tank 1, the air pressure in the fuel tank 1 pushes the cylindrical block 5 upward to squeeze the first spring 6 until the cylindrical block 5 contacts the ring 20, and at the same time, the circular holes on both sides of the T-shaped exhaust hole 29 provided inside the cylindrical block 5 coincide with the exhaust holes 30 provided on both sides of the shell 4, so that the gas in the fuel tank 1 enters from the bottom of the T-shaped exhaust hole 29 and is discharged from the exhaust hole 30.

[0039] like Figure 4 As shown, the rope 7 passes through the top of the shell 4, and pulleys 8 are fixedly connected on both sides of the top of the shell 4. The rope 7 is slidably connected to the pulley 8, and the lower end of the cover plate 9 is fixedly connected to the first fixed block 11 through the second spring 10; when there is pressure in the fuel tank 1 to push the cylindrical block 5 upward, the elastic force of the second spring 10 pulls the cover plate 9 downward, and at the same time drives the rope 7 to slide on the pulley 8, so that the cover plate 9 slides under the exhaust hole 30, so that the exhaust hole 30 is exposed to the outside for exhaust work. After the exhaust is completed, the cylindrical block 5 slides downward, and the rope 7 is pulled to drive the cover plate 9 to slide upward, so that the cover plate 9 coincides with the exhaust hole 30. Under normal conditions, the exhaust hole 30 will not be exposed to the air to prevent dust and impurities from clogging the exhaust hole 30 and affecting the exhaust effect.

[0040] Example 2

[0041] like Figures 5 to 8 to Figure 9 As shown, in contrast to Example 1, another embodiment of the present invention is as follows: a cleaning mechanism is respectively provided on both sides of the shell 4, the cleaning mechanism includes a drill rod 19, one end of the drill rod 19 is provided with a drill bit assembly, one end of the drill rod 19 is fixedly connected to a gear ring 18, the gear ring 18 is rotatably connected to the first rectangular block 13, a gear 17 is meshed above the gear ring 18, the gear 17 is fixedly connected to the output end of the motor 14, the motor 14 is fixedly connected to the first rectangular block 13 through the motor seat, the upper end of the first rectangular block 13 is fixedly connected to the second fixed block 15, the second fixed block 15 is fixedly connected to the electric telescopic rod 16, the piston end of the electric telescopic rod 16 is fixedly connected to the shell 4; when the cylindrical block 5 slides upward and the cover plate 9 slides downward to stagger with the exhaust hole 30, the exhaust hole 30 is blocked. When the oil tank 1 is blocked and the pressure in the oil tank 1 cannot be discharged in time, the air pressure sensor 38 provided at the lower end of the cylindrical block 5 detects the pressure in the oil tank 1. When the air pressure reaches a certain threshold, the electric telescopic rod 16 is started to contract, driving the telescopic plate 12 to contract. The telescopic plate 12 drives the first rectangular block 13 to approach the shell 4. The first rectangular block 13 drives the ring gear 18, the gear 17 and the drill rod 19 to move until the drill rod 19 extends into the exhaust hole 30. Then the motor 14 is started to drive the gear 17 to rotate, the gear 17 drives the ring gear 18 to rotate, and the ring gear 18 drives the drill rod 19 to rotate, so as to remove impurities attached to the side wall of the exhaust hole 30. After dredging, the gas in the oil tank 1 is discharged outward from the exhaust hole 30, and the cleaned impurities are blown out from the inside of the drill rod 19. The exhaust hole 30 can be dredged and exhausted in time to prevent impurities from entering the interior of the oil tank 1.

[0042] like Figures 4 and 5As shown, a circular hole is provided in the middle of the first rectangular block 13, and telescopic plates 12 are fixedly connected to both sides of the first rectangular block 13. The end of the telescopic plate 12 away from the first rectangular block 13 is fixedly connected to the shell 4, and the drill rod 19 is a hollow circular tube. A drill bit assembly is provided at one end of the drill rod 19; the circular hole provided in the middle of the first rectangular block 13 facilitates the discharge of impurities cleaned by the drill rod 19. When the electric telescopic rod 16 drives the drill rod 19 to move, the telescopic plate 12 limits the drill rod 19, so that the drill rod 19 and the exhaust hole 30 are always aligned.

[0043] like Figure 5 As shown, the drill bit assembly includes several rectangular grooves opened at one end of the drill rod 19, and a rotating shaft is rotatably arranged in the rectangular groove. One side of the rotating shaft is fixedly connected to one side of the rectangular groove by a torsion spring 33, and a cleaning blade 32 is fixedly connected to the rotating shaft; since the drill rod 19 needs to be extended into the exhaust hole 30 for cleaning, the diameter of the drill rod 19 is slightly smaller than the exhaust hole 30, resulting in the drill rod 19 being unable to contact the inner wall of the exhaust hole 30 during cleaning, and the cleaning is not thorough. When the drill rod 19 rotates, the cleaning blade 32 rotates outward under the action of centrifugal force, so that the cleaning blade 32 contacts the inner wall of the exhaust hole 30 for cleaning. After cleaning, the drill rod 19 stops rotating and the centrifugal force disappears. The cleaning blade 32 is pulled back under the action of the torsion spring 33, making it convenient for the drill rod 19 to be pulled out of the exhaust hole 30.

[0044] Example 3

[0045] like Figures 6 and 7 、 Figure 10 As shown, in contrast to Example 1, another embodiment of the present invention is as follows: a fixing mechanism is provided on both sides of the housing 4, and the fixing mechanism includes a rectangular block 22 fixedly connected to both sides of the housing 4, a first rectangular hole 34 is opened at the upper end of the rectangular block 22, and a second rectangular hole 35 is opened on one side of the rectangular block 22, and a tensioning mechanism is slidably connected in the first rectangular hole 34, and the tensioning mechanism is used to clamp the special-shaped groove 3 opened at the upper end of the fuel tank 1, one side of the tensioning mechanism is elastically connected to the housing 4, and the other side of the tensioning mechanism is fixedly connected There is a third rectangular block 25, which is slidably arranged in the second rectangular hole 35; when it is necessary to refuel the fuel tank 1, the third rectangular block 25 is pressed to slide in the second rectangular hole 35 to drive the lower end of the tensioning mechanism to slide in the special-shaped groove 3, and then it is pulled upward until it is out of the special-shaped groove 3, so that the exhaust device is separated from the fuel tank 1, which is convenient for refueling the fuel tank 1. After refueling is completed, the cylindrical block 5 is aligned with the oil filling hole 2, and the lower ends of the tensioning mechanisms on both sides are aligned with the special-shaped groove 3 and pressed downward to install the exhaust device on the fuel tank 1, which is convenient for disassembly and assembly.

[0046] like Figure 10As shown, the tensioning mechanism includes an L-shaped slider 24, one side of which is fixedly connected to the housing 4 through a third spring 21, a rectangular groove 37 is provided at the lower end of the L-shaped slider 24, and a pointed slider 27 is elastically connected to the rectangular groove 37, and a third rectangular hole 36 is provided at the upper end of the L-shaped slider 24, and a U-shaped block 23 is slidably connected in the third rectangular hole 36, and the lower end of the U-shaped block 23 is fixedly connected to the pointed slider 27; during installation, align the pointed slider 27 with the special-shaped groove 3, press downward to make the pointed slider 27 slide toward the middle to squeeze the third spring 21, and then push the U-shaped block 23 downward to make the pointed slider 27 slide downward until the lower end of the pointed slider 27 contacts the special-shaped groove 3, at which time the third spring 21 releases its elastic force to push the pointed slider 27 to coincide with the special-shaped groove 3, so that the exhaust device is installed on the fuel tank 1.

[0047] like Figure 10 As shown, the lower end of the L-shaped slider 24 is fixedly connected to the pointed slider 27 through the fourth spring 26, and the lower end of the pointed slider 27 can slide in the special-shaped groove 3 opened at the upper end of the fuel tank 1; during installation, the U-shaped block 23 is pushed downward to drive the pointed slider 27 to stretch the fourth spring 26 downward. When the pointed slider 27 slides and is fixed to the special-shaped groove 3, the fourth spring 26 is always in a tightened state. Since the sealing ring 31 is made of rubber, the elasticity decreases after long-term use, causing the sealing ring 31 to shrink. When the sealing ring 31 shrinks, the exhaust device and the fuel tank 1 are always tightly fitted under the tension of the fourth spring 26.

[0048] like Figure 7 Picture to Figure 8 As shown, a sealing ring 31 is installed at the lower end of the shell 4, and an air pressure sensor 38 is installed at the lower end of the cylindrical block 5. The air pressure sensor 38, the motor 14 and the electric telescopic rod 16 are electrically connected. During installation, the sealing ring 31 installed at the lower end of the shell 4 is tightly attached to the oil filling hole 2 provided at the upper end of the oil tank 1 to prevent oil leakage from the gap. The air pressure sensor 38 installed at the lower end of the cylindrical block 5 is convenient for real-time detection of the air pressure in the oil tank 1. If blockage occurs, the motor 14 and the electric telescopic rod 16 are immediately started to drive the drill rod 19 to clear and exhaust the exhaust hole 30 in time.

[0049] Working principle: when it is necessary to refuel the fuel tank 1, press the third rectangular block 25 to slide in the second rectangular hole 35, driving the pointed slider 27 to slide in the special-shaped groove 3 and squeeze the third spring 21, and then pull it upward until it is out of the special-shaped groove 3, so that the exhaust device is separated from the fuel tank 1, and refuel the fuel tank 1 from the oil filling hole 2. After refueling is completed, align the cylindrical block 5 with the oil filling hole 2, align the lower end of the pointed slider 27 with the special-shaped groove 3, press downward to make the pointed slider 27 slide toward the middle and squeeze the third spring 21, then push the U-shaped block 23 downward to make the pointed slider 27 slide downward until the lower end of the pointed slider 27 contacts the special-shaped groove 3. At this time, the third spring 21 releases its elastic force to push the pointed slider 27 to coincide with the special-shaped groove 3, so that the exhaust device is installed on the fuel tank 1, which is convenient for disassembly and assembly;

[0050] During installation, the sealing ring 31 installed at the lower end of the housing 4 fits tightly around the oil filling hole 2 provided at the upper end of the oil tank 1 to prevent oil leakage from the gap. When the U-shaped block 23 is pushed downward, the pointed slider 27 is driven downward to stretch the fourth spring 26. When the pointed slider 27 slides and fixes with the special-shaped groove 3, the fourth spring 26 is always in a tightened state. Since the sealing ring 31 is made of rubber, its elasticity decreases over time, causing the sealing ring 31 to shrink. When the sealing ring 31 shrinks, the tension of the fourth spring 26 keeps the exhaust device and the oil tank 1 in a tight fit.

[0051] After the installation is completed, when there is air pressure in the fuel tank 1 that needs to be exhausted, the air pressure in the fuel tank 1 will push the cylindrical block 5 upward to squeeze the first spring 6 until the cylindrical block 5 contacts the ring 20. At the same time, the elastic force of the second spring 10 will pull the cover plate 9 downward, and at the same time drive the rope 7 to slide on the pulley 8, so that the cover plate 9 slides under the exhaust hole 30, exposing the exhaust hole 30 to the outside for exhaust work. After the exhaust is completed, the cylindrical block 5 slides downward, and the rope 7 is pulled to drive the cover plate 9 to slide upward, so that the cover plate 9 coincides with the exhaust hole 30, so that the gas in the fuel tank 1 enters from the bottom of the T-shaped exhaust hole 29 and is discharged from the exhaust hole 30. Under normal conditions, the exhaust hole 30 will not be exposed to the air to prevent dust and impurities from clogging the exhaust hole 30 and affecting the exhaust effect.

[0052] When the exhaust hole 30 is blocked and the pressure in the fuel tank 1 cannot be discharged in time, the pressure in the fuel tank 1 is detected by the air pressure sensor 38 provided at the lower end of the cylindrical block 5. When the air pressure reaches a certain threshold, the electric telescopic rod 16 is started to retract and drive the telescopic plate 12 to retract. The telescopic plate 12 drives the first rectangular block 13 to move closer to the shell 4. The first rectangular block 13 drives the ring gear 18, the gear 17 and the drill rod 19 to move until the drill rod 19 extends into the exhaust hole 30. Then the motor 14 is started to drive the gear 17 to rotate, the gear 17 drives the ring gear 18 to rotate, and the ring gear 18 drives the drill rod 19 to rotate. Since the drill rod 19 needs to be inserted into the exhaust hole 30 for cleaning, the diameter of the drill rod 19 is slightly smaller than the exhaust hole. 30, resulting in the drill rod 19 being unable to contact the inner wall of the exhaust hole 30 during cleaning, and incomplete cleaning. When the drill rod 19 rotates, the cleaning blade 32 rotates outward under the action of centrifugal force, so that the cleaning blade 32 contacts the inner wall of the exhaust hole 30 for cleaning. After cleaning, the drill rod 19 stops rotating and the centrifugal force disappears. Under the action of the torsion spring 33, the cleaning blade 32 is pulled back, making it convenient for the drill rod 19 to be extracted from the exhaust hole 30, and impurities attached to the side wall of the exhaust hole 30 can be removed. After dredging, the gas in the fuel tank 1 is discharged outward from the exhaust hole 30, and the cleaned impurities are blown out from the inside of the drill rod 19. The exhaust hole 30 can be dredged and exhausted in time to prevent impurities from entering the interior of the fuel tank 1.

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A blower anti-leakage exhaust device, mounted on the oil filling hole (2) at the top of the oil tank (1), characterized in that: include A shell (4), wherein a cylindrical block (5) is slidably and sealingly connected inside the shell (4), the cylindrical block (5) is elastically connected to the top of the inner wall of the shell (4), a T-shaped exhaust hole (29) is provided inside the cylindrical block (5), and exhaust holes (30) are provided on both sides of the shell (4); A sliding mechanism, the sliding mechanism comprising two groups of ropes (7) arranged on both sides of the upper end of the cylindrical block (5) and a cover plate (9) slidably arranged on both sides of the shell (4), one end of the rope (7) is fixedly connected to the upper end of the cylindrical block (5), the other end of the rope (7) is fixedly connected to the top surface of the cover plate (9), the lower end of the cover plate (9) is elastically connected to a first fixed block (11), and the first fixed block (11) is fixedly connected to the shell (4); The cylindrical block (5) is provided with a T-shaped exhaust hole (29) and a plurality of oil baffles (28) are provided inside the cylindrical block (5), wherein the oil baffles (28) are arranged in a staggered manner and a gap is left between two adjacent oil baffles (28); A first spring (6) is fixedly connected to the top of the cylindrical block (5), an upper end of the first spring (6) is fixedly connected to the top of the inner wall of the housing (4), and a ring (20) is fixedly connected inside the housing (4); The rope (7) passes through the top of the housing (4), pulleys (8) are fixedly connected to both sides of the top of the housing (4), the rope (7) is slidably connected to the pulleys (8), and the lower end of the cover plate (9) is fixedly connected to the first fixed block (11) via a second spring (10); A cleaning mechanism is provided on both sides of the housing (4), the cleaning mechanism comprising a drill rod (19), one end of the drill rod (19) being provided with a drill bit assembly, one end of the drill rod (19) being fixedly connected to a gear ring (18), the gear ring (18) being rotatably connected to a first rectangular block (13), a gear (17) being meshed above the gear ring (18), the gear (17) being fixedly connected to an output end of a motor (14), the motor (14) being fixedly connected to the first rectangular block (13) via a motor seat, the upper end of the first rectangular block (13) being fixedly connected to a second fixed block (15), the second fixed block (15) being fixedly connected to an electric telescopic rod (16), the piston end of the electric telescopic rod (16) being fixedly connected to the housing (4).

2. The blower oil leakage prevention exhaust device according to claim 1, characterized in that: A circular hole is provided in the middle of the first rectangular block (13), and telescopic plates (12) are fixedly connected to both sides of the first rectangular block (13), and one end of the telescopic plate (12) away from the first rectangular block (13) is fixedly connected to the housing (4). The drill rod (19) is in the shape of a hollow circular tube, and a drill bit assembly is provided at one end of the drill rod (19).

3. The blower oil leakage prevention exhaust device according to claim 2, characterized in that: The drill bit assembly comprises a plurality of rectangular slots formed at one end of a drill rod (19), wherein a rotating shaft is rotatably arranged in the rectangular slot, one side of the rotating shaft is fixedly connected to one side of the rectangular slot via a torsion spring (33), and a cleaning blade (32) is fixedly connected to the rotating shaft.

4. The blower oil leakage prevention exhaust device according to claim 1, characterized in that: The shell (4) is provided with a fixing mechanism on both sides, and the fixing mechanism includes a rectangular block (22) fixedly connected to the two sides of the shell (4), a first rectangular hole (34) is opened at the upper end of the rectangular block (22), and a second rectangular hole (35) is opened at one side of the rectangular block (22), and a tensioning mechanism is slidably connected in the first rectangular hole (34), and the tensioning mechanism is used to clamp the special-shaped groove (3) opened at the upper end of the oil tank (1), one side of the tensioning mechanism is elastically connected to the shell (4), and the other side of the tensioning mechanism is fixedly connected to a third rectangular block (25), and the third rectangular block (25) is slidably set in the second rectangular hole (35).

5. The blower oil leakage prevention exhaust device according to claim 4, characterized in that: The tensioning mechanism includes an L-shaped slider (24), one side of the L-shaped slider (24) is fixedly connected to the housing (4) via a third spring (21), a rectangular groove (37) is provided at the lower end of the L-shaped slider (24), and a pointed slider (27) is elastically connected to the rectangular groove (37), a third rectangular hole (36) is provided at the upper end of the L-shaped slider (24), a U-shaped block (23) is slidably connected in the third rectangular hole (36), and the lower end of the U-shaped block (23) is fixedly connected to the pointed slider (27).

6. The blower oil leakage prevention exhaust device according to claim 5, characterized in that: The lower end of the L-shaped slider (24) is fixedly connected to the pointed slider (27) via a fourth spring (26), and the lower end of the pointed slider (27) is capable of sliding in the special-shaped groove (3) opened at the upper end of the oil tank (1).

7. The blower oil leakage prevention exhaust device according to claim 1, characterized in that: A sealing ring (31) is installed at the lower end of the housing (4), and an air pressure sensor (38) is installed at the lower end of the cylindrical block (5). The air pressure sensor (38), the motor (14) and the electric telescopic rod (16) are electrically connected.

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