A ventilated and dustproof fire pump control cabinet and its use method

Abstract

The present invention relates to the field of fire pump control cabinets. The present invention discloses a ventilated and dustproof fire pump control cabinet and a method for use. The problem to be solved by the present invention is that dust enters the interior of the existing control cabinet during ventilation, and the existing equipment generally uses a filter to cover the ventilation opening of the control cabinet, requiring the operator to regularly clean the filter in the control cabinet, thereby increasing the frequency of regular maintenance of the control cabinet by the operator. The present invention, through the provision of a wind deflector, enables the torsion spring to store and release energy, which can drive the switching of the filter. During use, the dust on the filter can be effectively and regularly handled, eliminating the need for the operator to perform regular dust maintenance, thereby increasing the service life of the control cabinet housing.

Description

Technical Field

[0001] The invention relates to the field of fire pump control cabinets, in particular to a ventilated and dustproof fire pump control cabinet and a use method thereof. Background Art

[0002] The fire pump control cabinet is installed in the fire pump room or a dedicated fire pump control room for automatic control of fire pumps. It has multiple protection functions such as overload, short circuit, phase loss protection, pump body leakage, motor overtemperature and leakage, as well as complete status display. It also has single pump and multi-pump control working modes, multiple main and standby pump switching methods and various starting methods.

[0003] An existing patent (publication number: CN116096034A) discloses a control cabinet with an internal dust-proof and ventilation function, comprising a cabinet body, a baffle and a sponge block. An air inlet is provided on one side of the cabinet body, a cleaning brush is provided inside the air inlet, a collecting trough is provided below the cleaning brush, and the sponge block is provided on one side of the cleaning brush. The sponge block is connected to the slide groove in an embedded form, and one end of the sponge block is connected to the handle through a fastener. The external air is pumped by the fan and moves to the sponge block through the air inlet. The external air is filtered by the sponge block to filter out dust in the air. The filtered air enters the interior of the PLC control cabinet to dissipate heat to the electronic components inside. The sponge block effectively prevents external dust from entering the interior of the PLC control cabinet, thereby avoiding damage to the electronic components and circuits and reducing the cost of use. In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art that have not been solved: when the existing control cabinet is ventilated, dust will enter the interior of the control cabinet, and the existing equipment generally uses a filter to cover the ventilation opening of the control cabinet. The operator needs to regularly clean the filter inside the control cabinet to increase the frequency of regular maintenance of the control cabinet by the operator. Summary of the Invention

[0004] The purpose of the present invention is to provide a ventilated and dustproof fire pump control cabinet and a method of use, so as to solve the problems raised in the above background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: a ventilated and dustproof fire pump control cabinet, comprising a control cabinet shell, a ventilation chamber is provided on the outer wall of the control cabinet shell, a bearing seat is fixedly connected to the inner wall of the control cabinet shell, an air inlet chamber connected to the ventilation chamber is provided in the bearing seat, a driving motor is fixedly connected to the outer wall of the bearing seat, an air inlet fan is provided on the main shaft of the driving motor facing the direction of the air inlet chamber, a filter is arranged between the ventilation chamber and the air inlet chamber, and a dust filter is provided below the filter in the bearing seat. A storage chamber, a carrying frame is fixedly connected to the top of the carrying seat, a transmission device is rotatably connected to the carrying frame, the transmission device is in transmission cooperation with the drive motor, a wind deflector is hingedly provided on the carrying frame, the wind deflector is arranged toward the air inlet chamber, a force storage device is also rotatably provided on the carrying frame, the force storage device and the transmission device are snap-fitted, the wind deflector is rotatably cooperated with the force storage device, an adjustment device is also provided on the carrying frame, the adjustment device is in transmission cooperation with the force storage device, and a dust collector is provided in the dust storage chamber.

[0005] Preferably, the transmission device includes a rotating rod rotatably connected to the carrier frame, a rotating sleeve is fixedly connected to the rotating rod, a rotating disk is also fixedly connected to the rotating rod, the main shaft of the driving motor is connected to the driving disk, and a driving belt is provided between the driving disk and the rotating disk.

[0006] Preferably, the force storage device includes a rotating rod rotatably arranged on the supporting frame, one end of the rotating rod extends toward the rotating sleeve, and the end of the rotating rod extending toward the rotating sleeve is fixedly connected to the rotating disk, and two connecting frames are correspondingly slidably provided on the rotating disk, and the two connecting frames are abutted and matched with the inner wall of the rotating sleeve. The rotating rod is also clamped with a movable sleeve, and a connecting spring is sleeved on the rotating rod, and the two ends of the connecting spring are respectively connected to the rotating disk and the movable sleeve, and the outer wall of the movable sleeve is correspondingly hingedly connected to an articulated frame, and the two articulated frames are respectively hinged and matched with the two connecting frames on the rotating disk.

[0007] Preferably, the other end of the rotating rod away from the rotating disk is fixedly connected to a mounting shaft, and an annular groove with an inward concave shape is provided on the inner wall of the bearing seat, and a plurality of bayonet holes are provided around the inner wall circumference of the annular groove. A torsion spring is provided in the annular groove, and a block is provided at the end of the torsion spring to abut against the bayonet hole, and the mounting shaft is connected to the center part of the torsion spring.

[0008] Preferably, the wind deflector includes a baffle portion and a connecting portion, the baffle portion is located in the air inlet chamber, the connecting portion is hingedly arranged on the supporting frame, a corresponding sliding groove is provided on the connecting portion, and a moving block is provided on the movable ring for corresponding rotation, and the two moving blocks are respectively provided with moving rods extending toward the direction of the sliding groove on the connecting portion.

[0009] The top of the sliding panel also is provided with an interlocking plate, and the interlocking plate is connected with the base plate of the sliding panel to the interlocking plate, and the interlocking plate is connected with the base plate of the sliding panel to the interlocking plate.

[0010] Preferably, an adjusting rod located beside the adjusting rack is rotatably provided on the carrier, an adjusting disk is fixedly connected to the adjusting rod, a mounting disk is fixedly connected to the mounting shaft, a connecting belt is sleeved between the adjusting disk and the mounting disk, an inner pawl is also fixedly connected to the adjusting rod, an outer shell is rotatably provided on the carrier on the outer end face of the inner ratchet gear, an inner ratchet gear cooperating with the inner pawl is provided on the inner wall of the outer shell, and an adjusting gear ring meshing with the adjusting rack is provided on the outer wall of the outer shell.

[0011] Preferably, the filter screen includes two rotating rollers and a filter screen belt, the two rotating rollers are rotatably arranged in the supporting seat, the filter screen belt is arranged on the two rotating rollers, one end of one of the rotating rollers is connected to a one-way shaft arranged in one direction, and a rotating gear is arranged on the one-way shaft, and the rotating gear is engaged with the movable rack.

[0012] Preferably, the method for using the ventilation and dustproof fire pump control cabinet comprises the following steps:

[0013] S1: Driven by the driving motor, the air inlet fan in the air inlet chamber can rotate, so that the air outside the control cabinet shell enters the air inlet chamber through the ventilation chamber, so that the air circulates in the control cabinet shell. When the driving motor rotates, the main shaft of the driving motor drives the driving disk to rotate, and the driving belt causes the rotating disk to rotate synchronously, thereby causing the rotating rod to rotate. The rotation of the rotating rod drives the rotating sleeve to rotate, and the moving collar that is clamped on the rotating rod is close to the rotating disk. At this time, the articulated frame on the moving collar drives the two connecting frames on the rotating disk to move on the rotating disk toward the inner wall of the rotating sleeve. When the end face of the connecting frame contacts the inner wall of the rotating sleeve, When the torsion spring is in a state of tension, the spring is rotated in a direction of rotation, and the torsion ...

[0014] S2: The baffle portion on the wind baffle is located in the air inlet cavity. When the air inlet fan rotates and the air outside the control cabinet housing enters the air inlet cavity, the air will contact the baffle portion. The baffle portion creates resistance to the air, which will cause the connecting portion to deflect counterclockwise on the carrier. When the connecting portion rotates counterclockwise on the carrier, the two sliding grooves on the connecting portion will drive the moving rod to move the moving block toward the rotating sleeve. At this time, the moving block will drive the moving collar on the rotating rod to move toward the rotating sleeve, squeezing the connecting spring to make the connecting frame contact the inner wall of the rotating sleeve, thereby enabling the rotating sleeve to drive the rotating rod to rotate.

[0015] S3: When the connecting portion of the wind deflector rotates counterclockwise on the carrier, the telescopic block on the connecting portion drives the connecting rod to move the limit block toward the side of the adjustment rack where the protrusion is provided. At this time, the stop block abuts against the bottom of the protrusion, thereby limiting the adjustment rack and restricting the movable frame to the carrier.

[0016] S4: When too much dust accumulates on the filter screen and affects the wind direction flow in the air inlet chamber, the connecting spring arranged between the rotating disk and the movable sleeve will push the movable sleeve to move in the direction away from the rotating sleeve. The movement of the movable sleeve will pull the hinged frame to separate the connecting frame from the inner wall of the rotating sleeve, and the movement of the movable sleeve can drive the connecting part of the wind deflector to deflect clockwise on the supporting frame. When the connecting part deflects clockwise, the telescopic block arranged on the connecting part will drive the connecting rod to move in the direction away from the protrusion. At this time, the stopper on the limit block is separated from the bottom of the protrusion, and the adjustment rack is no longer limited. At this time, the movable frame is movably arranged on the supporting frame;

[0017] S5: Since the rotating sleeve does not continue to drive the rotating rod to move when it rotates at this time, the torsion spring that has been under stress will drive the mounting shaft to rotate and reset the rotating rod. At this time, when the mounting shaft rotates, it will drive the mounting disc to make the connecting belt drive the adjusting disc to rotate. The rotation of the adjusting disc will cause the inner pawl to drive the inner ratchet gear to rotate, and then the outer shell drives the adjusting gear ring to move the adjusting rack toward the bottom of the carrier frame. When the moving frame moves, the moving rack on the other side of the moving frame will drive the rotating gear to rotate the one-way shaft. At this time, the rotation of the one-way shaft will drive one of the rotating rollers to rotate, thereby moving the filter belt containing a large amount of dust and impurities toward the dust storage chamber.

[0018] S6: When the filter belt containing dust moves into the dust storage chamber, the air intake fan rotates to restore the air circulation in the air intake chamber to normal, and the baffle portion on the wind baffle causes the connecting portion to rotate counterclockwise on the carrier, thereby causing the movable ring to move toward the rotating sleeve, so that the connecting frame can continue to abut against the inner wall of the rotating sleeve, thereby continuing to rotate the rotating rod to drive the torsion spring to store force, so that the filter can continue to be switched when dust accumulates next time;

[0019] S7: When the torsion spring releases kinetic energy to stop the installation shaft from rotating, the movable frame will move up and reset under the drive of the reset spring. When the movable frame resets, the moving rack drives the rotating gear to rotate. Under the restriction of the one-way shaft, the rotating roller will not drive the filter belt to move and reset. Moreover, when the adjusting rack contacts the adjusting gear ring, the inner ratchet gear in the outer shell will not drive the inner pawl to rotate, thereby not affecting the rotation of the installation shaft.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, when the rotating rod rotates, the rotating rod will drive the mounting shaft to make the torsion spring rotate and expand outward in the annular groove, thereby putting the torsion spring in a stressed state. The clamping block provided at the end of the torsion spring is initially arranged in the clamping notch in the inner wall of the annular groove, and the mounting shaft drives the clamping block on the torsion spring to move along the clamping notch in the annular groove. When the torsion spring reaches the critical point, the clamping block on the torsion spring will move to the next clamping notch in the annular groove, thereby avoiding damage caused by overload of the torsion spring. After the torsion spring is in a stressed state and dust accumulates on the filter screen, the subsequent adjustment device can be conveniently controlled to switch the filter screen by resetting the torsion spring.

[0022] In the present invention, when the movable frame moves, the movable rack on the other side of the movable frame will drive the rotating gear to rotate the one-way shaft. At this time, the rotation of the one-way shaft will drive one of the rotating rollers to rotate, thereby moving the filter belt containing a large amount of dust and impurities toward the dust storage chamber, thereby realizing the movement and switching of the filter belt, so that the filter belt containing no dust is moved between the air inlet chamber and the ventilation chamber to continue filtering dust and impurities in the air, and then quickly switch.

[0023] When the cam is in contact with the air filter, the cam is rotated to move the gears, and the gears are rotated to move the gears, and the gears are rotated to move the gears, and the gears are rotated to move the air filter. The one-way shaft drives the filter belt to move, moving the accumulated dust into the dust storage chamber, and the surface of the filter belt without dust accumulation moves to between the air inlet chamber and the ventilation chamber, the wind deflector will move and reset, and the connecting frame will contact the inner wall of the rotating sleeve and continue to be connected to each other, so that the torsion spring continues to be stressed. Through the setting of the wind deflector, the torsion spring stores and releases energy, which can drive the switching of the filter. During use, the dust on the filter can be effectively and regularly processed, without the need for operators to perform dust maintenance regularly, thereby improving the service life of the control cabinet shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a sectional view of the three-dimensional structure of the present invention;

[0026] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0027] Figure 4 This is a cross-sectional view of the three-dimensional structure of the bearing seat of the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the transmission device of the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the transmission device and the power storage device of the present invention;

[0030] Figure 7 It is a partial three-dimensional structural diagram of the transmission device and the power storage device of the present invention;

[0031] Figure 8 It is a schematic diagram of a partial three-dimensional structure of the power storage device of the present invention;

[0032] Figure 9 It is a schematic diagram of the three-dimensional structure of the wind deflector and the power storage device of the present invention;

[0033] Figure 10 It is a partial three-dimensional structural cross-sectional view of the present invention;

[0034] Figure 11 It is a schematic diagram of the three-dimensional structure of the regulating device of the present invention;

[0035] Figure 12 It is a schematic diagram of the three-dimensional structure of the power storage device and the regulating device of the present invention;

[0036] Figure 13 It is a schematic diagram of a partial three-dimensional structure of the regulating device of the present invention;

[0037] Figure 14 This is a schematic diagram of the three-dimensional structure of the windshield of the present invention in the first state;

[0038] Figure 15 It is a schematic diagram of the three-dimensional structure of the windshield of the present invention in the second state.

[0039] In the figure: 1. Control cabinet housing; 11. Ventilation chamber; 12. Bearing seat; 13. Air inlet chamber; 14. Drive motor; 15. Inlet fan; 16. Dust storage chamber; 17. Bearing frame; 2. Transmission device; 21. Rotating rod; 22. Rotating sleeve; 23. Rotating disk; 24. Drive disk; 25. Drive belt; 3. Power storage device; 31. Rotating rod; 32. Rotating disk; 33. Connecting frame; 34. Moving collar; 35. Connecting spring; 36. Articulated frame; 37. Mounting shaft; 38. Annular groove; 39. Bayonet; 391. Torsion spring; 392. Block; 4. Wind deflector; 41. Baffle portion; 42. Connecting 43. Slide; 44. Moving block; 45. Moving rod; 5. Adjusting device; 51. Moving frame; 52. Fixed rod; 53. Return spring; 54. Adjusting rack; 55. Moving rack; 56. Bump; 57. Telescopic block; 58. Limiting groove; 59. Connecting rod; 510. Limiting block; 511. Resistance spring; 512. Stop block; 513. Adjusting rod; 514. Adjusting disk; 515. Mounting disk; 516. Connecting belt; 517. Inner pawl; 518. Outer shell; 519. Inner ratchet gear; 520. Adjusting gear ring; 6. Filter; 61. Rotating roller; 62. Filter belt; 63. Rotating gear. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] See also Figures 1 to 15The present invention provides a technical solution: a ventilated and dustproof fire pump control cabinet, comprising a control cabinet housing 1, a ventilation chamber 11 is opened on the outer wall of the control cabinet housing 1, a bearing seat 12 is fixedly connected to the inner wall of the control cabinet housing 1, an air inlet chamber 13 connected to the ventilation chamber 11 is provided in the bearing seat 12, a driving motor 14 is fixedly connected to the outer wall of the bearing seat 12, an air inlet fan 15 is provided in the direction of the main shaft of the driving motor 14 facing the air inlet chamber 13, a filter screen 6 is arranged between the ventilation chamber 11 and the air inlet chamber 13, and a dust storage chamber 1 is provided below the filter screen 6 in the bearing seat 12. 6. The top of the bearing seat 12 is fixedly connected to a bearing frame 17, and a transmission device 2 is rotatably connected to the bearing frame 17. The transmission device 2 is in transmission cooperation with the drive motor 14. A wind deflector 4 is hingedly provided on the bearing frame 17, and the wind deflector 4 is arranged toward the air inlet chamber 13. A force storage device 3 is also rotatably provided on the bearing frame 17, and the force storage device 3 is snap-fitted with the transmission device 2. The wind deflector 4 is rotatably cooperated with the force storage device 3. An adjusting device 5 is also provided on the bearing frame 17, and the adjusting device 5 is in transmission cooperation with the force storage device 3. A dust collector is provided in the dust storage chamber 16.

[0042] In this embodiment, Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, the transmission device 2 includes a rotating rod 21 rotatably connected to the carrier 17, a rotating sleeve 22 is fixedly connected to the rotating rod 21, and a rotating disk 23 is also fixedly connected to the rotating rod 21. The main shaft of the drive motor 14 is connected to the drive disk 24, and a drive belt 25 is sleeved between the drive disk 24 and the rotating disk 23.

[0043] The force storage device 3 includes a rotating rod 31 rotatably arranged on the carrier 17, one end of the rotating rod 31 extends toward the rotating sleeve 22, and the end of the rotating rod 31 extending toward the rotating sleeve 22 is fixedly connected to the rotating disk 32, and two connecting frames 33 are correspondingly slidably provided on the rotating disk 32, and the two connecting frames 33 are abutted and matched with the inner wall of the rotating sleeve 22, and the rotating rod 31 is also clamped with a movable collar 34, and a connecting spring 35 is sleeved on the rotating rod 31, and the two ends of the connecting spring 35 are respectively connected to the rotating disk 32 and the movable collar 34, and the outer wall of the movable collar 34 is correspondingly hingedly connected to an articulated frame 36, and the two articulated frames 36 are respectively hinged and matched with the two connecting frames 33 on the rotating disk 32;

[0044] The other end of the rotating rod 31 away from the rotating disk 32 is fixedly connected to a mounting shaft 37. An annular groove 38 is formed on the inner wall of the supporting base 12. A plurality of bayonet holes 39 are formed around the inner wall of the annular groove 38. A torsion spring 391 is disposed in the annular groove 38. A block 392 is provided at the end of the torsion spring 391 to abut against the bayonet hole 39. The mounting shaft 37 is connected to the center of the torsion spring 391.

[0045] When the fire pump control cabinet is ventilated, the drive motor 14 can make the air inlet fan 15 in the air inlet chamber 13 rotate, so that the air outside the control cabinet housing 1 enters the air inlet chamber 13 through the ventilation chamber 11, thereby making the air circulate in the control cabinet housing 1. When the drive motor 14 rotates, the main shaft of the drive motor 14 drives the drive disc 24 to rotate, and the driving belt 25 makes the rotating disc 23 rotate synchronously, thereby making the rotating rod 21 rotate. The rotation of the rotating rod 21 drives the rotating sleeve 22 to rotate, and the movable sleeve 34 clamped on the rotating rod 31 is close to the rotating disc 32. At this time, the articulated frame 36 on the movable sleeve 34 drives the two connecting frames 33 on the rotating disc 32 to move on the rotating disc 32 toward the inner wall of the rotating sleeve 22. When the end face of the connecting frame 33 contacts the inner wall of the rotating sleeve 22, friction transmission is caused between the two, and then when the rotating sleeve 22 rotates, it can drive the movable sleeve 34 When the torsion spring 391 is in a stressed state, dust is accumulated on the filter 6, and the subsequent adjustment device 5 can be conveniently controlled to switch the filter 6 by resetting the torsion spring 391.

[0046] In this embodiment, Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 14 and Figure 15As shown, the wind deflector 4 includes a baffle portion 41 and a connecting portion 42. The baffle portion 41 is located in the air inlet cavity 13. The connecting portion 42 is hingedly provided on the carrier 17. A corresponding sliding groove 43 is provided on the connecting portion 42. A moving block 44 is provided on the moving collar 34 for corresponding rotation. Two moving blocks 44 are respectively provided with moving rods 45 extending toward the sliding groove 43 on the connecting portion 42.

[0047] The baffle portion 41 on the wind deflector 4 is located in the air inlet chamber 13. When the air inlet fan 15 rotates to allow air outside the control cabinet housing 1 to enter the air inlet chamber 13, the air will contact the baffle portion 41. The baffle portion 41 forms resistance to the air, which will cause the connecting portion 42 to deflect counterclockwise on the supporting frame 17. When the connecting portion 42 rotates counterclockwise on the supporting frame 17, the two sliding grooves 43 on the connecting portion 42 will drive the moving rod 45 to move the moving block 44 toward the direction of the rotating sleeve 22. At this time, the moving block 44 will drive the moving collar 34 to move on the rotating rod 31 toward the direction of the rotating sleeve 22, squeezing the connecting spring 35 to make the connecting frame 33 contact the inner wall of the rotating sleeve 22, thereby enabling the rotating sleeve 22 to drive the rotating rod 31 to rotate.

[0048] In this embodiment, Figure 2 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, the adjusting device 5 includes a mobile frame 51 slidably arranged on the side wall of the carrier 17, and a fixed rod 52 is fixedly connected to the top of the mobile frame 51. The fixed rod 52 slides with the carrier 17, and a return spring 53 is sleeved on the fixed rod 52. The two ends of the return spring 53 are respectively connected to the top of the mobile frame 51 and the carrier 17. An adjusting rack 54 and a moving rack 55 are respectively fixedly connected to the two side walls of the mobile frame 51. A wedge-shaped device is provided on one side wall of the adjusting rack 54. A protrusion 56 is provided on the connecting portion 42, a telescopic block 57 is provided on the side wall of the carrier 17, a limiting groove 58 is provided on the telescopic block 57, a connecting rod 59 that slidably cooperates with the limiting groove 58 is provided on the carrier 17, a limiting clamping block 510 is slidably provided on the carrier 17, the limiting clamping block 510 is connected to the connecting rod 59, and an interference spring 511 is further provided between the limiting clamping block 510 and the carrier 17, and a stopper 512 is provided on the side of the limiting clamping block 510 facing the protrusion 56 of the adjustment rack 54;

[0049] When the connecting portion 42 of the wind deflector 4 rotates counterclockwise on the supporting frame 17, the telescopic block 57 located on the connecting portion 42 drives the connecting rod 59 to move the limiting block 510 toward the side of the adjusting rack 54 where the protrusion 56 is provided. At this time, the stop block 512 abuts against the bottom of the protrusion 56, thereby limiting the adjusting rack 54 and restricting the movable frame 51 on the supporting frame 17.

[0050] In this embodiment, Figure 2 、 Figure 3 and Figure 4 As shown, an adjusting rod 513 located next to the adjusting rack 54 is rotatably provided on the carrier 17, an adjusting disk 514 is fixedly connected to the adjusting rod 513, a mounting disk 515 is fixedly connected to the mounting shaft 37, a connecting belt 516 is sleeved between the adjusting disk 514 and the mounting disk 515, an inner pawl 517 is also fixedly connected to the adjusting rod 513, an outer shell 518 is rotatably provided on the outer end surface of the inner ratchet gear 519 on the carrier 17, an inner ratchet gear 519 that cooperates with the inner pawl 517 is provided on the inner wall of the outer shell 518, and an adjusting gear ring 520 that meshes with the adjusting rack 54 is provided on the outer wall of the outer shell 518;

[0051] The filter screen 6 includes two rotating rollers 61 and a filter screen belt 62. The two rotating rollers 61 are rotatably arranged in the bearing seat 12. The filter screen belt 62 is arranged on the two rotating rollers 61. One end of one of the rotating rollers 61 is connected to a unidirectional shaft arranged in one direction. The unidirectional shaft is provided with a rotating gear 63. The rotating gear 63 is meshed with the movable rack 55.

[0052] When too much dust accumulates on the filter screen 6 and affects the wind direction flow in the air inlet chamber 13, the connecting spring 35 arranged between the rotating disk 32 and the movable ring 34 will push the movable ring 34 to move in the direction away from the rotating ring 22. The movement of the movable ring 34 will pull the hinge frame 36 to separate the connecting frame 33 from the inner wall of the rotating ring 22, and the movement of the movable ring 34 can drive the connecting portion 42 of the wind deflector 4 to deflect clockwise on the supporting frame 17. When the connecting portion 42 deflects clockwise, the telescopic block 57 arranged on the connecting portion 42 will drive the connecting rod 59 to move in the direction away from the protrusion 56. At this time, the stopper 512 on the limit block 510 is separated from the bottom of the protrusion 56, and the adjustment rack 54 is no longer limited. At this time, the movable frame 51 is movably arranged on the supporting frame 17;

[0053] Since the rotation of the rotating sleeve 22 does not continue to drive the rotating rod 31 to move, the torsion spring 391, which has been in a stressed state, drives the mounting shaft 37 to rotate and reset the rotating rod 31. At this time, when the mounting shaft 37 rotates, it drives the mounting disc 515 to make the connecting belt 516 drive the adjusting disc 514 to rotate. The rotation of the adjusting disc 514 causes the inner pawl 517 to drive the inner ratchet gear 519 to rotate, and then the outer shell 518 drives the adjusting gear ring 520 to move the adjusting rack 54 toward the bottom of the carrier 17. When the movable frame 51 moves, the movable rack 55 on the other side of the movable frame 51 drives the rotating gear 63 to rotate the one-way shaft. At this time, the rotation of the one-way shaft drives one of the rotating rollers 61 to rotate, thereby moving the filter belt 62 containing a large amount of dust and impurities toward the dust storage chamber 16, thereby realizing the movement and switching of the filter belt 62, so that the filter belt 62 without dust is moved to between the air inlet chamber 13 and the ventilation chamber 11, so that it can continue to filter dust and impurities in the air, thereby quickly switching;

[0054] When the filter belt 62 containing dust moves into the dust storage chamber 16, the rotation of the air inlet fan 15 will restore the air circulation in the air inlet chamber 13 to normal, and the baffle portion 41 on the wind deflector 4 will cause the connecting portion 42 to rotate counterclockwise on the supporting frame 17, thereby causing the movable ring 34 to move toward the rotating sleeve 22, so that the connecting frame 33 can continue to abut against the inner wall of the rotating sleeve 22, thereby continuing to rotate the rotating rod 31 to drive the torsion spring 391 to store force, so that the filter 6 can continue to be switched when dust accumulates next time;

[0055] When the torsion spring 391 releases kinetic energy to stop the installation shaft 37 from rotating, the movable frame 51 moves up and resets under the drive of the reset spring 53. When the movable frame 51 resets, the movable rack 55 drives the rotating gear 63 to rotate. Under the restriction of the one-way shaft, the rotating roller 61 will not drive the filter belt 62 to move and reset. Moreover, when the adjustment rack 54 contacts the adjustment gear ring 520, the inner ratchet gear 519 in the outer shell 518 will not drive the inner pawl 517 to rotate, thereby not affecting the rotation of the installation shaft 37.

[0056] Through this arrangement, when the control cabinet housing 1 is ventilated, the movable collar 34 can first drive the rotating rod 31 to rotate when the rotating sleeve 22 contacts the connecting frame 33, and the rotating rod 31 can drive the mounting shaft 37 to store force in the torsion spring 391. When too much dust accumulates on the filter 6 and affects the air circulation in the air inlet chamber 13, the wind deflector 4 drives the connecting frame 33 on the movable collar 34 to separate from the rotating sleeve 22. At this time, the kinetic energy of the stressed torsion spring 391 is released, and the rotating direction of the mounting shaft 37 is opposite to that of the rotating sleeve 22. The rotation of the mounting shaft 37 can control the adjusting gear ring 520 to move the movable frame 51 downward. When the movable frame 51 moves downward, The one-way shaft can drive the filter belt 62 to move by rotating the gear 63, and the accumulated dust can be moved into the dust storage chamber 16, while the surface of the filter belt 62 without dust accumulation moves to between the air inlet chamber 13 and the ventilation chamber 11, and the wind deflector 4 will move and reset, and the connecting frame 33 will contact the inner wall of the rotating sleeve 22 and continue to be connected to each other, so that the torsion spring 391 continues to be stressed. Through the setting of the wind deflector 4, the torsion spring 391 can store and release energy, which can drive the switching of the filter 6. During use, the dust on the filter 6 can be effectively processed regularly, without the need for operators to perform dust maintenance regularly, thereby improving the service life of the control cabinet housing 1.

[0057] The use method and advantages of the present invention: The use method of the ventilation and dustproof fire pump control cabinet has the following working process:

[0058] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 As shown:

[0059] S1: Driven by the driving motor 14, the inlet fan 15 in the air inlet chamber 13 can rotate, so that the air outside the control cabinet housing 1 enters the air inlet chamber 13 through the ventilation chamber 11, so that the air circulates in the control cabinet housing 1. When the driving motor 14 rotates, the main shaft of the driving motor 14 drives the driving disk 24 to rotate, and the driving belt 25 causes the rotating disk 23 to rotate synchronously, thereby causing the rotating rod 21 to rotate. The rotation of the rotating rod 21 drives the rotating sleeve 22 to rotate, and the movable sleeve 34 clamped on the rotating rod 31 is close to the rotating disk 32. At this time, the articulated frame 36 on the movable sleeve 34 drives the two connecting frames 33 on the rotating disk 32 to move on the rotating disk 32 toward the inner wall of the rotating sleeve 22. When the end face of the connecting frame 33 contacts the inner wall of the rotating sleeve 22, the friction between the two When the rotating sleeve 22 rotates, the movable sleeve 34 is driven to rotate, and the movable sleeve 34 is clamped on the rotating rod 31, so that the rotating rod 31 can rotate synchronously. When the rotating rod 31 rotates, the rotating rod 31 drives the mounting shaft 37 to make the torsion spring 391 rotate and expand outward in the annular groove 38, so that the torsion spring 391 is in a stressed state. The clamping block 392 provided at the end of the torsion spring 391 is initially set in the bayonet 39 on the inner wall of the annular groove 38. The mounting shaft 37 drives the clamping block 392 on the torsion spring 391 to move along the bayonet 39 in the annular groove 38. When the torsion spring 391 reaches the critical point, the clamping block 392 on the torsion spring 391 will move to the next bayonet 39 in the annular groove 38, thereby avoiding damage to the torsion spring 391 caused by overload.

[0060] S2: The baffle portion 41 on the wind baffle 4 is located in the air inlet chamber 13. When the air inlet fan 15 rotates to allow air outside the control cabinet housing 1 to enter the air inlet chamber 13, the air will contact the baffle portion 41. The baffle portion 41 forms resistance to the air, which will cause the connecting portion 42 to deflect counterclockwise on the carrier 17. When the connecting portion 42 rotates counterclockwise on the carrier 17, the two sliding grooves 43 on the connecting portion 42 will drive the moving rod 45 to move the moving block 44 toward the direction of the rotating sleeve 22. At this time, the moving block 44 will drive the moving collar 34 to move on the rotating rod 31 toward the direction of the rotating sleeve 22, squeezing the connecting spring 35 to make the connecting frame 33 contact the inner wall of the rotating sleeve 22, thereby enabling the rotating sleeve 22 to drive the rotating rod 31 to rotate.

[0061] S3: When the connecting portion 42 of the wind deflector 4 rotates counterclockwise on the carrier 17, the telescopic block 57 on the connecting portion 42 drives the connecting rod 59 to move the limiting block 510 toward the side of the adjustment rack 54 where the protrusion 56 is provided. At this time, the stopper 512 abuts against the bottom of the protrusion 56, thereby limiting the adjustment rack 54 and restricting the movable frame 51 on the carrier 17.

[0062] S4: When too much dust accumulates on the filter 6 and affects the wind direction flow in the air inlet chamber 13, the connecting spring 35 arranged between the rotating disk 32 and the movable ring 34 will push the movable ring 34 to move in the direction away from the rotating ring 22. The movement of the movable ring 34 will pull the hinge frame 36 to separate the connecting frame 33 from the inner wall of the rotating ring 22, and the movement of the movable ring 34 can drive the connecting portion 42 of the wind deflector 4 to deflect clockwise on the supporting frame 17. When the connecting portion 42 deflects clockwise, the telescopic block 57 arranged on the connecting portion 42 will drive the connecting rod 59 to move in the direction away from the protrusion 56. At this time, the stop block 512 on the limit block 510 is separated from the bottom of the protrusion 56, and the adjusting rack 54 is no longer limited. At this time, the movable frame 51 is movably arranged on the supporting frame 17;

[0063] S5: Since the rotation of the rotating sleeve 22 does not continue to drive the rotating rod 31 to move at this time, the torsion spring 391, which has been in a stressed state, drives the installation shaft 37 to rotate and reset the rotating rod 31. At this time, when the installation shaft 37 rotates, it drives the installation plate 515 to make the connecting belt 516 drive the adjusting plate 514 to rotate. The rotation of the adjusting plate 514 causes the inner ratchet 517 to drive the inner ratchet gear 519 to rotate, and then the outer shell 518 drives the adjusting gear ring 520 to adjust the rack 54 toward the bottom of the carrier 17. When the moving frame 51 moves, the moving rack 55 on the other side of the moving frame 51 drives the rotating gear 63 to rotate the one-way shaft. At this time, the rotation of the one-way shaft drives one of the rotating rollers 61 to rotate, thereby moving the filter belt 62 containing a large amount of dust and impurities toward the dust storage chamber 16.

[0064] S6: When the filter belt 62 containing dust moves into the dust storage chamber 16, the rotation of the air inlet fan 15 will restore the air circulation in the air inlet chamber 13 to normal, and the baffle portion 41 on the wind deflector 4 will cause the connecting portion 42 to rotate counterclockwise on the supporting frame 17, thereby causing the movable ring 34 to move toward the rotating sleeve 22, so that the connecting frame 33 can continue to abut against the inner wall of the rotating sleeve 22, thereby continuing to rotate the rotating rod 31 to drive the torsion spring 391 to store force, so that the filter 6 can continue to be switched when dust accumulates next time;

[0065] S7: When the torsion spring 391 releases kinetic energy to stop the installation shaft 37 from rotating, the movable frame 51 will move up and reset under the drive of the reset spring 53. When the movable frame 51 is reset, the moving rack 55 drives the rotating gear 63 to rotate. Under the restriction of the one-way shaft, the rotating roller 61 will not drive the filter belt 62 to move and reset. When the adjusting rack 54 contacts the adjusting gear ring 520, the inner ratchet gear 519 in the outer shell 518 will not drive the inner pawl 517 to rotate, thereby not affecting the rotation of the installation shaft 37.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit 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, and such changes and modifications 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 ventilated and dustproof fire pump control cabinet, characterized by: The invention comprises a control cabinet housing (1), wherein a ventilation chamber (11) is provided on the outer wall of the control cabinet housing (1), a bearing seat (12) is fixedly connected to the inner wall of the control cabinet housing (1), an air inlet chamber (13) communicating with the ventilation chamber (11) is provided in the bearing seat (12), a driving motor (14) is fixedly connected to the outer wall of the bearing seat (12), an air inlet fan (15) is provided with the main shaft of the driving motor (14) facing the air inlet chamber (13), a filter (6) is arranged between the ventilation chamber (11) and the air inlet chamber (13), a dust storage chamber (16) is provided in the bearing seat (12) below the filter (6), and the top of the bearing seat (12) is fixedly connected to the outer wall of the bearing seat (12). A carrier frame (17) is fixedly connected, a transmission device (2) is rotatably connected to the carrier frame (17), the transmission device (2) and the drive motor (14) are in transmission cooperation, a wind deflector (4) is hingedly provided on the carrier frame (17), the wind deflector (4) is arranged toward the air inlet chamber (13), a power storage device (3) is rotatably provided on the carrier frame (17), the power storage device (3) and the transmission device (2) are engaged with each other, the wind deflector (4) and the power storage device (3) are in rotation cooperation, an adjustment device (5) is further provided on the carrier frame (17), the adjustment device (5) and the power storage device (3) are in transmission cooperation, and a dust collector is provided in the dust storage chamber (16); The transmission device (2) comprises a rotating rod (21) rotatably connected to the carrier frame (17), and a rotating sleeve (22) is fixedly connected to the rotating rod (21); The force storage device (3) includes a rotating rod (31) rotatably arranged on the carrier (17), one end of the rotating rod (31) extending toward the rotating sleeve (22) is fixedly connected to the rotating disk (32), two connecting frames (33) are correspondingly slidably arranged on the rotating disk (32), the two connecting frames (33) are in abutment with the inner wall of the rotating sleeve (22), the rotating rod (31) is also clamped with a moving collar (34), the outer wall of the moving collar (34) is correspondingly hingedly connected to an articulated frame (36), and the two articulated frames (36) are respectively hingedly engaged with the two connecting frames (33) on the rotating disk (32); The other end of the rotating rod (31) away from the rotating disk (32) is fixedly connected to a mounting shaft (37); an annular groove (38) with an inwardly concave shape and arranged in an annular shape is provided on the inner wall of the bearing seat (12); a torsion spring (391) is arranged in the annular groove (38); and the mounting shaft (37) is connected to the center portion of the torsion spring (391); The wind deflector (4) comprises a baffle portion (41) and a connecting portion (42), wherein the baffle portion (41) is located in the air inlet cavity (13), the connecting portion (42) is hingedly arranged on the carrier (17), a corresponding sliding groove (43) is provided on the connecting portion (42), and a moving block (44) is provided on the moving collar (34) for corresponding rotation, and two moving blocks (44) are respectively provided with moving rods (45) extending in the direction of the sliding groove (43) on the connecting portion (42); The adjusting device (5) comprises a movable frame (51) slidably arranged on the side wall of the supporting frame (17), an adjusting rack (54) and a movable rack (55) are fixedly connected to the two side walls of the movable frame (51), a wedge-shaped protrusion (56) is provided on one side wall of the adjusting rack (54), a telescopic block (57) is provided on the connecting portion (42), a limiting groove (58) is provided on the side wall of the supporting frame (17), and a connecting rod (57) is provided on the telescopic block (57) that is slidably matched with the limiting groove (58). 9), a limit block (510) is slidably provided on the carrier (17), and a stop block (512) is provided on the side of the limit block (510) facing the adjustment rack (54) on which the protrusion (56) is provided. The baffle portion (41) forms resistance to the air so that the connecting portion (42) deflects counterclockwise on the carrier (17), and the telescopic block (57) drives the connecting rod (59) to move the limit block (510) toward the side of the protrusion (56). The stop block (512) abuts against the bottom of the protrusion (56) to limit the adjustment rack (54); When too much dust accumulates on the filter (6) and affects the wind direction flow in the air inlet chamber (13), the movable ring (34) moves to drive the connecting portion (42) of the wind deflector (4) to deflect clockwise on the carrier (17). When the connecting portion (42) deflects clockwise, the stopper (512) is driven to separate from the bottom of the protrusion (56), and the adjustment rack (54) is no longer limited. The kinetic energy of the stressed torsion spring (391) is released to move the movable frame (51) downward, driving the filter belt to move, and moving the accumulated dust into the dust storage chamber (16).

2. A ventilation and dustproof fire pump control cabinet according to claim 1, characterized in that: The rotating rod (21) is also fixedly connected to a rotating disk (23), the main shaft of the driving motor (14) is connected to the driving disk (24), and a driving belt (25) is sleeved between the driving disk (24) and the rotating disk (23).

3. A ventilation and dustproof fire pump control cabinet according to claim 2, characterized in that: One end of the rotating rod (31) extends toward the inside of the rotating sleeve (22). A connecting spring (35) is sleeved on the rotating rod (31). Two ends of the connecting spring (35) are respectively connected to the rotating disc (32) and the movable sleeve (34).

4. A ventilation and dustproof fire pump control cabinet according to claim 3, characterized in that: A plurality of bayonet holes (39) are provided around the inner wall circumference of the annular groove (38), and a clamping block (392) abutting against the bayonet holes (39) is provided at the end of the torsion spring (391).

5. A ventilation and dustproof fire pump control cabinet according to claim 4, characterized in that: The top of the movable frame (51) is fixedly connected to a fixed rod (52), the fixed rod (52) and the supporting frame (17) are slidably matched, a return spring (53) is sleeved on the fixed rod (52), and the two ends of the return spring (53) are respectively connected to the top of the movable frame (51) and the supporting frame (17), the limiting block (510) is connected to the connecting rod (59), and a resistance spring (511) is further provided between the limiting block (510) and the supporting frame (17).

6. A ventilation and dustproof fire pump control cabinet according to claim 5, characterized in that: An adjusting rod (513) located beside the adjusting rack (54) is rotatably provided on the carrier (17), an adjusting disk (514) is fixedly connected to the adjusting rod (513), a mounting disk (515) is fixedly connected to the mounting shaft (37), a connecting belt (516) is sleeved between the adjusting disk (514) and the mounting disk (515), an inner ratchet (517) is also fixedly connected to the adjusting rod (513), an outer shell (518) is rotatably provided on the outer end face of the inner ratchet gear (519) on the carrier (17), an inner ratchet gear (519) cooperating with the inner ratchet (517) is provided on the inner wall of the outer shell (518), and an adjusting gear ring (520) meshing with the adjusting rack (54) is provided on the outer wall of the outer shell (518).

7. A ventilation and dustproof fire pump control cabinet according to claim 6, characterized in that: The filter screen (6) comprises two rotating rollers (61) and a filter screen belt (62). The two rotating rollers (61) are rotatably arranged in the bearing seat (12). The filter screen belt (62) is arranged on the two rotating rollers (61). One end of one of the rotating rollers (61) is connected to a unidirectional shaft arranged in one direction. A rotating gear (63) is arranged on the unidirectional shaft. The rotating gear (63) is meshed with the moving rack (55).

8. The method for using a ventilation and dustproof fire pump control cabinet according to claim 7, characterized in that: The steps include: S1: The driving motor (14) drives the air inlet fan (15) in the air inlet chamber (13) to rotate, so that the air outside the control cabinet housing (1) enters the air inlet chamber (13) through the ventilation chamber (11), so that the air circulates in the control cabinet housing (1). When the driving motor (14) rotates, the main shaft of the driving motor (14) drives the driving disc (24) to rotate, and the driving belt (25) causes the rotating disc (23) to rotate synchronously, thereby causing the rotating rod (2 1) Rotation, the rotation of the rotating rod (21) drives the rotating sleeve (22) to rotate, and the movable sleeve (34) clamped on the rotating rod (31) is close to the rotating disk (32). At this time, the hinge frame (36) on the movable sleeve (34) drives the two connecting frames (33) on the rotating disk (32) to move toward the inner wall of the rotating sleeve (22) on the rotating disk (32). When the end surface of the connecting frame (33) contacts the inner wall of the rotating sleeve (22), friction between the two is generated. The rotating sleeve (22) is driven by friction transmission, and when the rotating sleeve (22) rotates, the movable sleeve (34) is driven to rotate, and the movable sleeve (34) is clamped on the rotating rod (31), so that the rotating rod (31) can rotate synchronously. When the rotating rod (31) rotates, the rotating rod (31) drives the mounting shaft (37) to rotate the torsion spring (391) in the annular groove (38) and expand outward, so that the torsion spring (391) is in a stressed state. The end of the torsion spring (391) is provided with a The clamping block (392) is initially arranged in the bayonet (39) in the inner wall of the annular groove (38), and the mounting shaft (37) drives the clamping block (392) on the torsion spring (391) to move along the bayonet (39) in the annular groove (38). When the torsion spring (391) reaches a critical point, the clamping block (392) on the torsion spring (391) moves to the next bayonet (39) in the annular groove (29), thereby preventing the torsion spring (391) from being damaged due to overload. S2: The baffle portion (41) on the wind baffle (4) is located in the air inlet chamber (13). When the air inlet fan (15) rotates to allow air outside the control cabinet housing (1) to enter the air inlet chamber (13), the air will contact the baffle portion (41). The baffle portion (41) forms resistance to the air, which will cause the connecting portion (42) to deflect counterclockwise on the carrier (17). When the connecting portion (42) rotates counterclockwise on the carrier (17), the two sliding grooves (43) on the connecting portion (42) will drive the moving rod (45) to move the moving block (44) toward the direction of the rotating sleeve (22). At this time, the moving block (44) will drive the moving ring (34) to move on the rotating rod (31) toward the direction of the rotating sleeve (22), squeezing the connecting spring (35) to make the connecting frame (33) contact the inner wall of the rotating sleeve (22), thereby enabling the rotating sleeve (22) to drive the rotating rod (31) to rotate; S3: When the connecting portion (42) of the wind deflector (4) rotates counterclockwise on the carrier (17), the telescopic block (57) on the connecting portion (42) drives the connecting rod (59) to move the limiting block (510) toward the side of the adjusting rack (54) provided with the protrusion (56), and at this time, the stop block (512) abuts against the bottom of the protrusion (56), thereby limiting the adjusting rack (54) and restricting the movable frame (51) on the carrier (17); S4: When too much dust accumulates on the filter (6) and affects the wind direction flow in the air inlet chamber (13), the connecting spring (35) provided between the rotating disk (32) and the movable collar (34) will push the movable collar (34) to move in a direction away from the rotating collar (22). The movement of the movable collar (34) will pull the hinge frame (36) to separate the connecting frame (33) from the inner wall of the rotating collar (22), and the movement of the movable collar (34) can drive the wind deflector ( 4) is deflected clockwise on the carrier (17). When the connecting portion (42) is deflected clockwise, the telescopic block (57) provided on the connecting portion (42) drives the connecting rod (59) to move in a direction away from the protrusion (56). At this time, the stopper (512) on the limiting block (510) is separated from the bottom of the protrusion (56) and no longer limits the adjustment rack (54). At this time, the movable frame (51) is movably provided on the carrier (17); S5: Since the rotating sleeve (22) does not continue to drive the rotating rod (31) to move when it rotates at this time, the torsion spring (391) that has been in a stressed state will drive the installation shaft (37) to rotate and reset the rotating rod (31). At this time, when the installation shaft (37) rotates, it will drive the installation disc (515) to make the connecting belt (516) drive the adjustment disc (514) to rotate. The rotation of the adjustment disc (514) will cause the inner ratchet (517) to drive the inner ratchet gear (519) to rotate, and then the outer shell (518) drives the adjustment gear ring (520) to move the adjustment rack (54) toward the bottom of the carrier (17). When the moving frame (51) moves, the moving rack (55) on the other side of the moving frame (51) will drive the rotating gear (63) to rotate the one-way shaft. At this time, the rotation of the one-way shaft will drive one of the rotating rollers (61) to rotate, and then the filter belt (62) containing a large amount of dust and impurities will move toward the dust storage chamber (16); S6: When the filter belt (62) containing dust moves into the dust storage chamber (16), the air inlet fan (15) rotates to restore the air circulation in the air inlet chamber (13) to normal, and the baffle portion (41) on the wind baffle (4) causes the connecting portion (42) to rotate counterclockwise on the carrier (17), thereby causing the movable ring (34) to move toward the rotating sleeve (22), so that the connecting frame (33) can continue to abut against the inner wall of the rotating sleeve (22), thereby continuing to rotate the rotating rod (31) to drive the torsion spring (391) to store force, so that the filter (6) can continue to be switched when dust accumulates next time; S7: When the torsion spring (391) releases kinetic energy to stop the installation shaft (37), the movable frame (51) moves up and resets under the drive of the reset spring (53). When the movable frame (51) resets, the movable rack (55) drives the rotating gear (63) to rotate. Under the limitation of the one-way shaft, the rotating roller (61) will not drive the filter belt (62) to move and reset. When the adjustment rack (54) contacts the adjustment gear ring (520), the inner ratchet gear (519) in the outer shell (518) will not drive the inner ratchet (517) to rotate, thereby not affecting the rotation of the installation shaft (37).

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