Integrated hoisting mechanism based on gear regulation and control assembly

Abstract

The invention relates to the related technical field of hoisting mechanisms, and discloses an integrated hoisting mechanism based on a gear regulation and control assembly, the integrated hoisting mechanism comprises a crane body and a cockpit, the cockpit is mounted on the crane body, and the gear regulation and control assembly is arranged in the cockpit; the gear regulation and control assembly comprises a control box, a plurality of control buttons are arranged on one side of the upper end of the control box, an operation rod is arranged in the middle of the upper end of the control box, a master controller is arranged on one side of the interior of the control box, and a frequency converter is arranged on the lower side of the master controller. According to the invention, the first filter plate and the second filter plate can be used for dual filtration, so that clean gas can enter the control box for heat dissipation; and the first filter plate and the second filter plate alternately move up and down, so that the first filter plate and the second filter plate can be cleaned in time, the gas filtering effect is not affected, and the heat dissipation effect on the interior of the control box is maintained.

Description

Technical Field

[0001] The present invention belongs to the technical field related to lifting mechanisms, and more specifically, particularly relates to an integrated lifting mechanism based on a gear position control component. Background Art

[0002] During the operation of the crane, the gear control component may generate heat due to factors such as current flow and mechanical friction. If the working environment temperature is high, or the crane is operated at high load for a long time, the heating of the gear control component may be more serious. In order to ensure the normal operation of the gear control component and extend its service life, it is necessary to perform heat dissipation treatment on it. However, the crane mechanism in the prior art has the following defects: In the prior art, the heat dissipation method of the gear control component in the lifting mechanism usually adopts natural heat dissipation or forced air cooling to dissipate the heat of the electronic components in the gear control component; however, the lifting mechanism usually works in outdoor or industrial environments, where there is a lot of dust and pollutants. The accumulation of dust will affect the heat dissipation effect and operation stability of the gear control component; In the prior art, in order to maintain the cleanliness and heat dissipation effect of the gear control component, the lifting mechanism needs to regularly remove dust from the filter. The dust removal component in the gear control component usually uses compressed air blowing or a vacuum cleaner to remove dust; however, there is dust with a strong adsorption degree on the filter, which makes it difficult to quickly and fully clean the dust on the filter.

[0003] Therefore, in view of this, the existing structure and deficiencies are studied and improved, and an integrated lifting mechanism based on a gear control component is provided, in order to achieve a more practical and valuable purpose. Summary of the invention

[0004] The present invention provides an integrated lifting mechanism based on a gear position regulating component, which is used to overcome the above-mentioned defects in the prior art.

[0005] The purpose and effect of the integrated lifting mechanism based on the gear position control component of the present invention are achieved by the following specific technical means: 14. The control mechanism according to claim 13, wherein the control mechanism comprises a control box, wherein a plurality of control buttons are arranged on one side of the upper end of the control box, an operating lever is arranged in the middle of the upper end of the control box, a main command controller is arranged on one side of the inner part of the control box, and a frequency converter is arranged on the lower side of the main command controller, a through opening is arranged on the side wall of the control box, a guide frame is fixedly arranged on the inner side of the through opening, a first cleaning box is fixedly arranged on the upper side of the inner part of the control box, a second cleaning box is fixedly arranged on the lower side of the inner part of the control box, a first filter plate and a second filter plate are vertically slidably provided between the first cleaning box and the second cleaning box, one side of the first filter plate is in sliding contact with one side of the guide frame, the first filter plate and the second filter plate are in sliding contact with each other, and the inner sides of the first cleaning box are in sliding contact with the second cleaning box A first cleaning assembly and a second cleaning assembly are provided on both sides of the interior of the cleaning box; the first cleaning assembly includes two first rotating shafts, and the two first rotating shafts are rotatably connected to one side wall of the first cleaning box, and a first circular plate is fixedly provided at one end of each first rotating shaft, and a first cleaning member is provided on one side of each first circular plate; two first gears are rotatably provided on one side of the outer side of the first cleaning box, and a first slider is fixedly provided on the inner side of each first gear, and a first slide groove is provided on the outer side of one end of each first rotating shaft, and each first slide slide slides horizontally in the first slide groove; two sleeves are fixedly provided on one side wall of each first cleaning box, and the inner side of each sleeve is in sliding contact with the outer side of the first rotating shaft, and two arc slide grooves are symmetrically provided on the inner side of each sleeve, and two second slides are symmetrically fixedly provided on the outer side of each first rotating shaft, and each two second slides slide in the two arc slide grooves respectively.

[0006] A further technical solution is that a first fixed plate is fixedly provided on one side of the middle part of the first filter plate, and a pair of first racks are fixedly provided on the upper and lower sides of the first fixed plate respectively, one side of each of the first racks is meshed with the outer side of the first gear, and a first movable plate is fixedly provided on both ends of the middle part of the first filter plate respectively, two first electric telescopic rods are provided on the inner lower side of the control box, and the extended ends of the two first electric telescopic rods are respectively fixedly connected to the two first movable plates, and a first T-shaped slider is fixedly provided on one side of each of the first gears, and each of the first T-shaped sliders slides in an annular manner inside the side wall of the first cleaning box, and the inner side of each of the first gears is in sliding contact with the outer side of the first rotating shaft, and the two arc-shaped slide grooves are connected to each other head to tail to form a wave-shaped slide groove structure.

[0007] A further technical solution is that the second cleaning assembly includes two second rotating shafts, each of the second rotating shafts is rotatably connected to the other side wall of the first cleaning box, a second gear is fixedly provided on the outer side of each second rotating shaft, a third rotating shaft is slidably provided inside each second rotating shaft, a pressure plate is fixedly provided at one end of each third rotating shaft, a second circular plate is provided on one side of each pressure plate, a second cleaning member is provided on one side of each second circular plate, a third sliding block is fixedly provided on one side of the third rotating shaft, a second sliding groove is provided on one side of the second rotating shaft, and the third sliding block slides horizontally in the second sliding groove.

[0008] A further technical solution is that a second fixed plate is fixed on one side of the middle part of the second filter plate, a pair of second racks are fixed on the upper and lower sides of the second fixed plate, one side of each second rack is meshed with the outer side of the second gear, and one side of each second gear is fixed with a second T-shaped slider, and each second T-shaped slider slides in a ring inside the other side wall of the first cleaning box.

[0009] According to a further technical solution, two annular grooves are provided in the other side wall of the first cleaning box, an annular plate is slidably provided inside each annular groove, a push block is fixedly provided on one side of each pressure plate, and one end of each push block is in sliding contact with an inclined surface on one side of the annular plate.

[0010] A further technical solution is that one side of each of the annular plates is in an inclined structure, and a plurality of protrusions are fixedly arranged at intervals on the inclined surface of one side of each of the annular plates, the outer side of each of the protrusions is in sliding contact with one end of the push block, and a spring is connected between one side of each of the third sliding blocks and the inner side of the second sliding groove.

[0011] A further technical solution is that a push rod is fixedly provided on one side of each annular plate, a pair of push rods are fixedly provided on the upper and lower sides of the second fixed plate, one end of each push rod is in sliding contact with the inclined surface of one end of the push rod, two second movable plates are fixedly provided at both ends of the middle part of the second filter plate, two second electric telescopic rods are provided inside the control box, the protruding ends of the two second electric telescopic rods are respectively fixedly connected to the two second movable plates, and the internal structure of the first cleaning box is the same as the internal structure of the second cleaning box.

[0012] A further technical solution is that a pair of first boxes are provided on the upper and lower sides of the interior of the control box, each pair of the first boxes are respectively located on both sides of the master controller, a second box is respectively connected between the upper and lower pairs of the first boxes and the first cleaning box and the second cleaning box, and a plurality of spray valves are respectively provided between the upper and lower pairs of the second boxes and the interior of the first cleaning box and the interior of the second cleaning box.

[0013] A further technical solution is that a piston plate is vertically slidably provided inside each of the first boxes, a connecting rod is fixedly connected between each of the piston plates and the second fixed plate, a first air cavity and a second air cavity are separated inside each of the first boxes by the piston plate, a first one-way valve is provided to connect the first air cavity with the interior of the control box, a second one-way valve is provided to connect the first air cavity with the interior of the second box, a third one-way valve is provided to connect the second air cavity with the interior of the control box, and a fourth one-way valve is provided to connect the second air cavity with the interior of the second box.

[0014] A further technical solution is that a plurality of collecting boxes are provided inside the control box, the interior of each collecting box is connected to the interior of the first cleaning box by a first connecting pipe, the interior of the collecting box is connected to the interior of the second cleaning box by a second connecting pipe, and one side of the collecting box is connected to an external vacuum cleaner by a connecting port.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an integrated lifting mechanism based on a gear control component. Through the arrangement of the first filter plate and the second filter plate, the gas outside the control box enters the guide frame through the opening, and the gas in the guide frame is subjected to a double filtering effect through the first filter plate and the second filter plate, so as to filter the dust in the gas on the first filter plate and the second filter plate, so as to allow the clean gas to enter the control box for heat dissipation. Then, through the arrangement of the first cleaning box and the second cleaning box, the upper parts of the first filter plate and the second filter plate alternately enter the first cleaning box for cleaning or the lower parts of the first filter plate and the second filter plate alternately enter the second cleaning box for cleaning, so as to maintain the filtering effect of the first filter plate and the second filter plate, and while cleaning the first filter plate and the second filter plate, the gas does not affect the heat dissipation effect of entering the control box, thereby improving the heat dissipation effect in the control box.

[0016] The present invention discloses an integrated lifting mechanism based on a gear control component. Through the arrangement of a first rotating shaft, a first circular plate, and a first cleaning member, the first filter plate moves upward to drive the first fixed plate to move upward, and the first fixed plate moves upward to drive the first rack to move upward, and one side of the first rack is respectively meshed with the outer side of the first gear, so that the first gear rotates; through the horizontal sliding of the first slider in the first slide groove, the first gear rotates to drive the first rotating shaft to rotate, and the first rotating shaft rotates to drive the first circular plate and the first cleaning member to rotate, and the first cleaning member rotates to clean the upper part of the first filter plate, so as to clean and remove the dust adsorbed on the upper part of the first filter plate. Then, through the arrangement of a sleeve, an arc-shaped slide groove, and a second slider, the first rotating shaft rotates to drive the two second sliders to slide in an arc shape in the two arc-shaped slide grooves respectively, and the two arc-shaped slide grooves are connected to each other at the head and tail to form a wave-shaped slide groove structure, so that the first rotating shaft rotates and moves back and forth; the first rotating shaft rotates and moves back and forth to drive the first circular plate and the first cleaning member to rotate and move back and forth, which is conducive to cleaning and removing harder impurities from the first filter plate, so as to improve the cleaning effect of the first filter plate.

[0017] The present invention provides an integrated lifting mechanism based on a gear control component. Through the arrangement of a second rotating shaft, a third rotating shaft, a pressing plate, a second circular plate, and a second cleaning member, the second filter plate moves downward to drive the second fixed plate to move downward, and the second fixed plate moves downward to drive the second rack to move downward, and one side of the second rack meshes with the outer side of the second gear, so that the second gear rotates to drive the second rotating shaft to rotate; the second rotating shaft rotates to drive the third rotating shaft to rotate through the third slider, and the third rotating shaft rotates to drive the pressing plate, the second circular plate, and the second cleaning member to rotate, and the second cleaning member rotates to clean the lower part of the second filter plate. Then, through the arrangement of a second chute, annular plate, a third slider, and a spring, the pressing plate moves back and forth under the elastic force of the spring and the guiding action of the annular plate; the pressing plate rotates and moves back and forth to drive the second circular plate and the second cleaning member to rotate and move back and forth, which is conducive to cleaning and removing harder impurities from the second filter plate, so as to improve the cleaning effect of the second filter plate. Then, through the setting of the protrusion, the rotation of the pressure plate drives the push block to rotate, and through the sliding contact between one end of the push block and the outer side of the protrusion and the elastic force of the spring, the pressure plate is made to shake slightly while moving back and forth in a large range, thereby driving the second circular plate and the second cleaning member to move back and forth in a large range while shaking slightly, so as to facilitate the second cleaning member to shake and beat the second filter plate for cleaning. Finally, through the setting of the push rod and the push rod, the second filter plate moves downward and drives the push rod to move downward, and through the sliding contact between one end of the push rod and the inclined surface of one end of the push rod, the vertical movement of the push rod drives the push rod to move horizontally, and the movement of the push rod drives the annular plate to move, and the movement of the annular plate drives the pressure plate, the second circular plate, and the second cleaning member through the push block, so that the contact degree between the second cleaning member and the second filter plate is continuously improved, so as to continuously improve the cleaning effect on the second filter plate, so that the second filter plate can be quickly cleaned and the filtering effect of the second filter plate can be maintained.

[0018] The present invention provides an integrated lifting mechanism based on a gear control component, in which a piston plate slides up and down in a first box body through a second one-way valve and a fourth one-way valve, and the gas in the first air cavity and the second air cavity is alternately compressed and enters the second box body, and the compressed gas is sprayed out through a plurality of spray valves to perform a purge effect on the first filter plate or the second filter plate; and the piston plate moves up and down through the first one-way valve and the third one-way valve, and the gas in the control box is alternately drawn into the first air cavity and the second air cavity, so as to replenish the gas in the first air cavity and the second air cavity, thereby being able to continuously purge the first filter plate or the second filter plate, thereby improving the cleaning effect on the first filter plate and the second filter plate and promoting the flow of gas in the control box, thereby performing a heat dissipation effect on the interior of the control box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is an isometric structural schematic diagram of the present invention; Figure 2 It is an isometric structural schematic diagram of the mid-gear position control assembly of the present invention; Figure 3 It is a front view structural schematic diagram of the gear position regulating component of the present invention; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at E in the middle; Figure 6 for Figure 5 A schematic diagram of the local enlarged structure at F in the middle; Figure 7 for Figure 5 A schematic diagram of the local enlarged structure at G in the middle; Figure 8 for Figure 3 Schematic diagram of the cross-section structure at BB in the middle; Fig. 9 It is a schematic diagram of the top view of the gear position regulating component of the present invention; Fig.10 for Fig. 9 Schematic diagram of the cross-section structure at CC in the middle; Fig.11 for Fig. 9 Schematic diagram of the cross-sectional structure at DD in the middle; Fig.12 It is a schematic diagram of the gear adjustment of the present invention.

[0022] Description of reference numerals: Crane body 10, cab 11, control box 12, operating lever 13, control button 14, master controller 15, frequency converter 16, port 17, first filter plate 18, second filter plate 19, guide frame 20, first cleaning box 21, second cleaning box 22, first movable plate 23, first electric telescopic rod 24, second movable plate 25, second electric telescopic rod 26, first rotating shaft 27, first circular plate 28, first cleaning member 29, first gear 30, first slider 31, first slide groove 32, sleeve 33, arc slide groove 34, second slider 35, first fixed plate 36, first rack 37, second rotating shaft 38, third rotating shaft 39 , the third slider 40, the second slide groove 41, the pressure plate 42, the second circular plate 43, the second cleaning member 44, the annular groove 45, the annular plate 46, the push block 47, the protrusion 48, the push rod 49, the first T-shaped slider 50, the second T-shaped slider 51, the second fixing plate 52, the second rack 53, the second gear 54, the push rod 55, the first box body 56, the piston plate 57, the first air cavity 58, the second air cavity 59, the first one-way valve 60, the second box body 61, the second one-way valve 62, the spray valve 63, the collecting box 64, the first connecting pipe 65, the second connecting pipe 66, the connecting port 67, the spring 68, the third one-way valve 69, the fourth one-way valve 70, and the connecting rod 71. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] As attached Figure 1 To Attachment Fig.12 As shown: The invention provides an integrated lifting mechanism based on a gear position regulating component.

[0027] Refer to the attached Figure 1 To Attachment Fig.11 , including a crane body 10 and a cab 11, the cab 11 is installed on the crane body 10, and a gear control component is arranged inside the cab 11; the gear control component includes a control box 12, a plurality of control buttons 14 are arranged on one side of the upper end of the control box 12, an operating rod 13 is arranged in the middle of the upper end of the control box 12, a master controller 15 is arranged on one side of the inner part of the control box 12, a frequency converter 16 is arranged on the lower side of the master controller 15, a through opening 17 is arranged on the side wall of the control box 12, a guide frame 20 is fixedly arranged on the inner side of the through opening 17, a first cleaning box 21 is fixedly arranged on the upper side of the inner part of the control box 12, a second cleaning box 22 is fixedly arranged on the lower side of the inner part of the control box 12, a first filter plate 18 and a second filter plate 19 are vertically slidably arranged between the first cleaning box 21 and the second cleaning box 22, one side of the first filter plate 18 is in sliding contact with one side of the guide frame 20, the first filter plate 18 and the second filter plate 19 are in sliding contact with each other, and both sides of the inner part of the first cleaning box 21 are in contact with the inner part of the second cleaning box 22 A first cleaning assembly and a second cleaning assembly are provided on both sides of the part; the first cleaning assembly includes two first rotating shafts 27, and the two first rotating shafts 27 are rotatably connected to a side wall of the first cleaning box 21. A first circular plate 28 is fixedly arranged at one end of each first rotating shaft 27, and a first cleaning member 29 is arranged on one side of each first circular plate 28. Two first gears 30 are rotatably provided on one side of the outside of the first cleaning box 21, and a first slider 31 is fixedly arranged on the inner side of each first gear 30. A first slide groove 32 is provided on the outer side of one end of each first rotating shaft 27, and each first slider 31 slides horizontally in the first slide groove 32. Two sleeves 33 are fixedly arranged on one side wall of each first cleaning box 21, and the inner side of each sleeve 33 is in sliding contact with the outer side of the first rotating shaft 27. Two arc-shaped slide grooves 34 are symmetrically arranged on the inner side of each sleeve 33. Two second sliders 35 are symmetrically fixedly arranged on the outer side of each first rotating shaft 27, and each two second sliders 35 slide in the two arc-shaped slide grooves 34 respectively.

[0028] Preferably, see Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 7 , Attachment Fig.10A first fixed plate 36 is fixedly provided on one side of the middle part of the first filter plate 18, and a pair of first racks 37 are fixedly provided on the upper and lower sides of the first fixed plate 36, respectively. One side of each first rack 37 is meshed with the outer side of the first gear 30, and a first movable plate 23 is fixedly provided on both ends of the middle part of the first filter plate 18, and two first electric telescopic rods 24 are provided on the lower inner side of the control box 12. The protruding ends of the two first electric telescopic rods 24 are fixedly connected with the two first movable plates 23, respectively. A first T-shaped slider 50 is fixedly provided on one side of each first gear 30, and each first T-shaped slider 50 slides in an annular manner on the side wall of the first cleaning box 21. The inner side of each first gear 30 is in sliding contact with the outer side of the first rotating shaft 27, and the two arc-shaped slide grooves 34 are connected to each other head to tail to form a wave-shaped slide groove structure.

[0029] Preferably, see Attachment Figure 4 To Attachment Figure 6 The second cleaning assembly includes two second rotating shafts 38, each of which is rotatably connected to the other side wall of the first cleaning box 21, a second gear 54 is fixedly provided on the outer side of each second rotating shaft 38, a third rotating shaft 39 is slidably provided inside each second rotating shaft 38, a pressure plate 42 is fixedly provided at one end of each third rotating shaft 39, a second circular plate 43 is provided on one side of each pressure plate 42, a second cleaning member 44 is provided on one side of each second circular plate 43, a third sliding block 40 is fixedly provided on one side of the third rotating shaft 39, a second sliding groove 41 is provided on one side of the second rotating shaft 38, and the third sliding block 40 slides horizontally in the second sliding groove 41.

[0030] Preferably, see Attachment Figure 4 To Attachment Figure 6 A second fixed plate 52 is fixedly provided on one side of the middle part of the second filter plate 19, and a pair of second racks 53 are fixedly provided on the upper and lower sides of the second fixed plate 52. One side of each second rack 53 is meshed with the outer side of the second gear 54, and one side of each second gear 54 is fixedly provided with a second T-shaped slider 51, and each second T-shaped slider 51 slides in a ring inside the other side wall of the first cleaning box 21.

[0031] Preferably, see Attachment Figure 4 To Attachment Figure 6 Two annular grooves 45 are provided in the other side wall of the first cleaning box 21, and an annular plate 46 is slidably provided inside each annular groove 45. A push block 47 is fixedly provided on one side of each pressure plate 42, and one end of each push block 47 is in sliding contact with the inclined surface of one side of the annular plate 46.

[0032] Preferably, see Attachment Figure 4 To Attachment Figure 6One side of each annular plate 46 is in an inclined structure, and a plurality of protrusions 48 are fixedly provided at intervals on the inclined surface of one side of each annular plate 46. The outer side of each protrusion 48 is in sliding contact with one end of the push block 47, and a spring 68 is connected between one side of each third slider 40 and the inner side of the second slide groove 41.

[0033] Preferably, see Attachment Figure 4 To Attachment Figure 6 , Attachment Fig.11 A push rod 49 is fixedly provided on one side of each annular plate 46, a pair of push rods 55 are fixedly provided on the upper and lower sides of the second fixed plate 52, one end of each push rod 55 is in sliding contact with the inclined surface of one end of the push rod 49, two second movable plates 25 are fixedly provided at both ends of the middle part of the second filter plate 19, two second electric telescopic rods 26 are provided inside the control box 12, and the protruding ends of the two second electric telescopic rods 26 are fixedly connected to the two second movable plates 25, respectively, and the internal structure of the first cleaning box 21 is the same as the internal structure of the second cleaning box 22.

[0034] Preferably, see Attachment Figure 8 A pair of first boxes 56 are provided on the upper and lower sides of the control box 12, and each pair of first boxes 56 is located on both sides of the master controller 15. A second box 61 is connected between the upper and lower pairs of first boxes 56 and the first cleaning box 21 and the second cleaning box 22 respectively. The upper and lower pairs of second boxes 61 are connected to the interior of the first cleaning box 21 and the interior of the second cleaning box 22 respectively, and a plurality of spray valves 63 are provided.

[0035] Preferably, see Attachment Figure 8 A piston plate 57 is vertically slidably provided inside each first box body 56, a connecting rod 71 is fixedly connected between each piston plate 57 and the second fixed plate 52, a first air cavity 58 and a second air cavity 59 are separated inside each first box body 56 by the piston plate 57, the first air cavity 58 is connected to the interior of the control box 12 and is provided with a first one-way valve 60, the interior of the first air cavity 58 and the interior of the second box body 61 are connected and are provided with a second one-way valve 62, the second air cavity 59 and the interior of the control box 12 are connected and are provided with a third one-way valve 69, and the second air cavity 59 and the interior of the second box body 61 are connected and are provided with a fourth one-way valve 70.

[0036] Preferably, see Attachment Fig.10 A plurality of collecting boxes 64 are provided inside the control box 12. The interior of each collecting box 64 is connected to the interior of the first cleaning box 21 by a first connecting pipe 65. The interior of the collecting box 64 is connected to the interior of the second cleaning box 22 by a second connecting pipe 66. One side of the collecting box 64 is connected to an external vacuum cleaner by a connecting port 67.

[0037] In the initial state, the lower portion of the first filter plate 18 is located in the second cleaning box 22 , and the upper portion of the first filter plate 18 is aligned with the guide frame 20 ; the upper portion of the second filter plate 19 is located in the first cleaning box 21 , and the lower portion of the second filter plate 19 is aligned with the guide frame 20 .

[0038] Specific use of the present invention: The staff controls the gear position by operating the operating lever 13 and several control buttons 14. The gear position signal is transmitted to the PLC built into the master controller 15. The PLC built into the master controller 15 has a speed DB data block. Each gear position signal corresponds to each speed value in the DB data block. The master controller 15 writes the speed value corresponding to the gear position signal into the frequency converter 16 through PN communication. The frequency converter 16 is connected to the main control motor control circuit and adjusts the main control motor to operate according to the speed value, so as to facilitate electronic control shifting and improve the efficiency of gear position control. Among them, PN communication is a communication method for message transmission through a transmission gateway, which is mainly used for push notifications; PN stands for Push Notification. In PLC programming, DB data blocks (DataBlocks) are data storage areas used to store user data and program intermediate variables.

[0039] During the operation of the crane body 10, the gear control component may generate heat due to factors such as current flow and mechanical friction. If the working environment temperature is high, or the crane body 10 runs at high load for a long time, the heating of the gear control component may be more serious. In order to ensure the normal operation of the gear control component and extend its service life, it is necessary to perform heat dissipation treatment. The interior of the control box 12 is naturally cooled through the port 17. However, the crane body 10 usually works in outdoor or industrial environments, where there are a lot of dust and pollutants. The accumulation of dust will affect the heat dissipation effect and operation stability of the gear control component. The gas outside the control box 12 enters the guide frame 20 through the port 17. The gas in the guide frame 20 is double filtered through the first filter plate 18 and the second filter plate 19, so that the dust in the gas is filtered on the first filter plate 18 and the second filter plate 19, so that the clean gas can enter the control box 12 for heat dissipation.

[0040] When there is a lot of dust adsorbed on the upper part of the first filter plate 18, the control system controls the two first electric telescopic rods 24 to extend, and the two first electric telescopic rods 24 extend to drive the two first movable plates 23 to move upward, and the two first movable plates 23 move upward to drive the first filter plate 18 to move upward, so that the upper part of the first filter plate 18 enters the first cleaning box 21, and the lower part of the first filter plate 18 is aligned with the guide frame 20 to maintain the filtering effect on the gas. The first filter plate 18 moves upward to drive the first fixed plate 36 to move upward, and the first fixed plate 36 moves upward to drive the first rack 37 to move upward, and one side of the first rack 37 is respectively engaged with the outer side of the first gear 30, so that the first gear 30 rotates. The first slider 31 slides horizontally in the first slide groove 32, and the first gear 30 rotates to drive the first rotating shaft 27 to rotate, and the first rotating shaft 27 rotates to drive the first circular plate 28 and the first cleaning member 29 to rotate, and the first cleaning member 29 rotates to clean the upper part of the first filter plate 18, so as to clean and remove the dust adsorbed on the upper part of the first filter plate 18. The rotation of the first gear 30 drives the first T-shaped slider 50 to slide in an annular manner inside the side wall of the first cleaning box 21 , so that the first gear 30 rotates smoothly.

[0041] At the same time, the first rotating shaft 27 rotates and drives the two second sliders 35 to slide in the two arc-shaped chutes 34 respectively, and the two arc-shaped chutes 34 are connected to each other at the head and tail to form a wave-shaped chute structure, so that the first rotating shaft 27 rotates and moves back and forth. The rotation and back and forth movement of the first rotating shaft 27 drives the first circular plate 28 and the first cleaning member 29 to rotate and move back and forth, which is conducive to cleaning and removing harder impurities from the first filter plate 18, so as to improve the cleaning effect of the first filter plate 18. The two first electric telescopic rods 24 are telescopically driven to move the two first movable plates 23 up and down, and the two first movable plates 23 move up and down to drive the first filter plate 18 to move up and down, and the first filter plate 18 moves upward into the first cleaning box 21, and the first cleaning component in the first cleaning box 21 is used to clean the upper part of the first filter plate 18; and the first filter plate 18 moves downward into the second cleaning box 22, and the first cleaning component in the second cleaning box 22 is used to clean the lower part of the first filter plate 18, so as to maintain the filtering effect of the first filter plate 18.

[0042] When the dust adsorbed on the lower part of the second filter plate 19 is large, the control system controls the two second electric telescopic rods 26 to extend, and the two second electric telescopic rods 26 extend to drive the two second movable plates 25 to move downward, and the two second movable plates 25 move downward to drive the second filter plate 19 to move downward, so that the lower part of the second filter plate 19 enters the second cleaning box 22, and the upper part of the second filter plate 19 is aligned with the guide frame 20, so as to maintain the filtering effect on the gas. The second filter plate 19 moves downward to drive the second fixed plate 52 to move downward, and the second fixed plate 52 moves downward to drive the second rack 53 to move downward, and the second rack 53 is meshed with the outer side of the second gear 54 through one side of the second gear 53, so that the second gear 54 rotates and drives the second rotating shaft 38 to rotate. The second rotating shaft 38 rotates and drives the third rotating shaft 39 to rotate through the third slider 40, and the third rotating shaft 39 rotates to drive the pressing plate 42, the second circular plate 43, and the second cleaning member 44 to rotate, and the second cleaning member 44 rotates to clean the lower part of the second filter plate 19.

[0043] Next, the pressing plate 42 rotates to drive the push block 47 to slide in the annular groove 45, and one end of the push block 47 slides and contacts with the inclined surface of one side of the annular plate 46, so that the pressing plate 42 moves close to the second filter plate 19 under the guidance of the annular plate 46. The movement of the pressing plate 42 drives the second circular plate 43 and the second cleaning member 44 to move, so as to improve the contact degree between the second cleaning member 44 and the second filter plate 19, and the movement of the pressing plate 42 drives the third rotating shaft 39 and the third slider 40 to move, and the movement of the third slider 40 compresses the spring 68 to generate elastic force, so that the pressing plate 42 moves back and forth under the elastic force of the spring 68 and the guidance of the annular plate 46. The rotation and back and forth movement of the pressing plate 42 drives the second circular plate 43 and the second cleaning member 44 to rotate and move back and forth, which is conducive to cleaning and removing harder impurities from the second filter plate 19, so as to improve the cleaning effect of the second filter plate 19.

[0044] At the same time, the rotation of the pressure plate 42 drives the push block 47 to rotate. Through the sliding contact between one end of the push block 47 and the outer side of the protrusion 48 and the elastic force of the spring 68, the pressure plate 42 moves back and forth in a large range and vibrates slightly at the same time, thereby driving the second circular plate 43 and the second cleaning member 44 to move back and forth in a large range and vibrate slightly at the same time, so that the second cleaning member 44 can be used to shake and beat the second filter plate 19 for cleaning.

[0045] At the same time, the second filter plate 19 moves downward, driving the second fixed plate 52 to move downward. The second fixed plate 52 moves downward, driving the push rod 55 to move downward. Through the sliding contact between one end of the push rod 55 and the inclined surface of one end of the push rod 49, the vertical movement of the push rod 55 drives the push rod 49 to move horizontally. The movement of the push rod 49 drives the annular plate 46 to move. The movement of the annular plate 46 drives the pressure plate 42, the second circular plate 43, and the second cleaning member 44 to move through the push block 47, thereby continuously improving the contact degree between the second cleaning member 44 and the second filter plate 19, so as to continuously improve the cleaning effect of the second filter plate 19, thereby being able to quickly clean the second filter plate 19 and maintain the filtering effect of the second filter plate 19.

[0046] The two second electric telescopic rods 26 extend and retract to drive the two second movable plates 25 to move up and down, and the two second movable plates 25 move up and down to drive the second filter plate 19 to move up and down. The second filter plate 19 moves upward, so that the upper part of the second filter plate 19 enters the first cleaning box 21, and the upper part of the second filter plate 19 is cleaned by the second cleaning component in the first cleaning box 21. The second filter plate 19 moves downward, so that the lower part of the second filter plate 19 enters the second cleaning box 22, and the lower part of the second filter plate 19 is cleaned by the second cleaning component in the second cleaning box 22, so as to maintain the filtering function of the second filter plate 19.

[0047] Then, the second filter plate 19 moves up and down, driving the second fixed plate 52 to move up and down, the second fixed plate 52 moves downward, driving the two pairs of connecting rods 71 ​​to move downward, and the two pairs of connecting rods 71 ​​move downward, driving the two pairs of piston plates 57 to move downward in the two pairs of first boxes 56, respectively, so that the gas in the two upper second air chambers 59 enters the upper second box 61 through the two upper fourth one-way valves 70, and the gas in the upper second box 61 is sprayed out through a plurality of spray valves 63 to perform compressed air purge on the upper part of the first filter plate 18. The upper piston plate 57 slides downward in the upper first box 56, and draws the gas in the control box 12 into the upper first air chamber 58 through the upper first one-way valve 60, so as to replenish the gas in the upper first air chamber 58, so as to continuously perform jet purge on the first cleaning box 21.

[0048] At the same time, the gas in the two lower second air chambers 59 enters the lower second box 61 through the two lower fourth one-way valves 70, and the gas in the lower second box 61 is sprayed out through a plurality of spray valves 63 to perform compressed air purge on the lower part of the second filter plate 19. The lower piston plate 57 slides downward in the lower first box 56, and the gas in the control box 12 is drawn into the lower first air chamber 58 through the lower first one-way valve 60, so as to replenish the gas in the lower first air chamber 58, so as to continuously perform jet purge on the second cleaning box 22.

[0049] Therefore, the piston plate 57 slides up and down in the first box body 56 through the second one-way valve 62 and the fourth one-way valve 70, and the gas in the first air cavity 58 and the second air cavity 59 is alternately compressed and enters the second box body 61, and the compressed gas is sprayed out through a plurality of spray valves 63 to purge the first filter plate 18 or the second filter plate 19; and the piston plate 57 moves up and down through the first one-way valve 60 and the third one-way valve 69, and the gas in the control box 12 is alternately drawn into the first air cavity 58 and the second air cavity 59, so as to replenish the gas in the first air cavity 58 and the second air cavity 59, so as to continuously purge the first filter plate 18 or the second filter plate 19, thereby improving the cleaning effect of the first filter plate 18 and the second filter plate 19 and promoting the flow of gas in the control box 12, thereby dissipating heat inside the control box 12.

[0050] Finally, the external vacuum cleaner is started to suck air into the collection box 64 through the connection port 67. The collection box 64 sucks the dust in the first cleaning box 21 through the first connecting pipe 65 and stores it in the collection box 64. The collection box 64 sucks the dust in the second cleaning box 22 through the second connecting pipe 66 and stores it in the collection box 64, so as to clean the dust in the first cleaning box 21 and the second cleaning box 22 in time, so as to keep the first filter plate 18 and the second filter plate 19 clean. The gear control component in the cab 11 needs to consider heat dissipation and dust removal during design and use. Through reasonable heat dissipation design and regular dust removal maintenance, the normal operation and service life of the gear control component can be ensured, thereby improving the overall performance and safety of the crane.

[0051] The present invention is an integrated lifting mechanism based on a gear control component. Through the arrangement of the first filter plate 18 and the second filter plate 19, the gas outside the control box 12 enters the guide frame 20 through the opening 17. The gas in the guide frame 20 passes through the first filter plate 18 and the second filter plate 19 for double filtering, so that dust in the gas is filtered on the first filter plate 18 and the second filter plate 19, so that the clean gas enters the control box 12 for heat dissipation. Then, through the arrangement of the first cleaning box 21 and the second cleaning box 22, the upper parts of the first filter plate 18 and the second filter plate 19 alternately enter the first cleaning box 21 for cleaning or the lower parts of the first filter plate 18 and the second filter plate 19 alternately enter the second cleaning box 22 for cleaning, so as to maintain the filtering effect of the first filter plate 18 and the second filter plate 19, and while cleaning the first filter plate 18 and the second filter plate 19, the gas does not affect the heat dissipation in the control box 12, thereby improving the heat dissipation effect in the control box 12.

[0052] The present invention provides an integrated lifting mechanism based on a gear control component. Through the arrangement of a first rotating shaft 27, a first circular plate 28, and a first cleaning member 29, the first filter plate 18 moves upward to drive the first fixed plate 36 to move upward. The first fixed plate 36 moves upward to drive the first rack 37 to move upward. One side of the first rack 37 respectively engages with the outer side of the first gear 30, thereby rotating the first gear 30. The first slider 31 slides horizontally in the first slide groove 32. The first gear 30 rotates to drive the first rotating shaft 27 to rotate. The first rotating shaft 27 rotates to drive the first circular plate 28 and the first cleaning member 29 to rotate. The first cleaning member 29 rotates to clean the upper part of the first filter plate 18, so as to clean and remove dust adsorbed on the upper part of the first filter plate 18. Through the arrangement of the sleeve 33, the arc-shaped slide groove 34 and the second slider 35, the first rotating shaft 27 rotates to drive the two second sliders 35 to slide in an arc shape in the two arc-shaped slide grooves 34 respectively, and the two arc-shaped slide grooves 34 are connected to each other at the head and tail to form a wave-shaped slide groove structure, so that the first rotating shaft 27 rotates and moves back and forth; the rotation and back and forth movement of the first rotating shaft 27 drives the first circular plate 28 and the first cleaning member 29 to rotate and move back and forth, which is conducive to cleaning and removing harder impurities from the first filter plate 18, so as to improve the cleaning effect of the first filter plate 18.

[0053] The present invention is an integrated lifting mechanism based on the gear adjustment component. Through the arrangement of the second rotating shaft 38, the third rotating shaft 39, the pressing plate 42, the second circular plate 43, and the second cleaning member 44, the second filter plate 19 moves downward to drive the second fixed plate 52 to move downward, and the second fixed plate 52 moves downward to drive the second rack 53 to move downward, and one side of the second rack 53 meshes with the outer side of the second gear 54, so that the second gear 54 rotates to drive the second rotating shaft 38 to rotate; the second rotating shaft 38 rotates to drive the third rotating shaft 39 to rotate through the third slider 40, and the third rotating shaft 39 rotates to drive the pressing plate 42, the second circular plate 43, and the second cleaning member 44 to rotate, and the second cleaning member 44 rotates to clean the lower part of the second filter plate 19. Then, through the arrangement of the second slide 41, the annular plate 46, the third slider 40, and the spring 68, the pressing plate 42 moves back and forth under the elastic force of the spring 68 and the guiding action of the annular plate 46. The rotation and back-and-forth movement of the pressing plate 42 drives the second circular plate 43 and the second cleaning member 44 to rotate and move back and forth, which is conducive to cleaning and removing harder impurities from the second filter plate 19, so as to improve the cleaning effect of the second filter plate 19. Then, through the setting of the protrusion 48, the rotation of the pressing plate 42 drives the push block 47 to rotate, and through the sliding contact between one end of the push block 47 and the outer side of the protrusion 48 and the elastic force of the spring 68, the pressing plate 42 is made to move back and forth in a large range while shaking slightly, thereby driving the second circular plate 43 and the second cleaning member 44 to move back and forth in a large range while shaking slightly, so as to use the second cleaning member 44 to shake and beat the second filter plate 19 for cleaning. Finally, through the setting of the push rod 49 and the push rod 55, the second filter plate 19 moves downward and drives the push rod 55 to move downward. Through the sliding contact between one end of the push rod 55 and the inclined surface of one end of the push rod 49, the vertical movement of the push rod 55 drives the push rod 49 to move horizontally. The movement of the push rod 49 drives the annular plate 46 to move. The movement of the annular plate 46 drives the pressure plate 42, the second circular plate 43, and the second cleaning member 44 to move through the push block 47, so that the contact degree between the second cleaning member 44 and the second filter plate 19 is continuously improved, so as to continuously improve the cleaning effect of the second filter plate 19, so that the second filter plate 19 can be quickly cleaned and the filtering effect of the second filter plate 19 is maintained.

[0054] The present invention provides an integrated lifting mechanism based on a gear control component, in which a piston plate 57 slides up and down in a first box body 56 through a second one-way valve 62 and a fourth one-way valve 70, and the gas in the first air cavity 58 and the second air cavity 59 is alternately compressed and enters the second box body 61, and the compressed gas is sprayed out through a plurality of spray valves 63 to purge the first filter plate 18 or the second filter plate 19; and the piston plate 57 moves up and down through the first one-way valve 60 and the third one-way valve 69, and the gas in the control box 12 is alternately drawn into the first air cavity 58 and the second air cavity 59, so as to replenish the gas in the first air cavity 58 and the second air cavity 59, so as to continuously purge the first filter plate 18 or the second filter plate 19, thereby improving the cleaning effect of the first filter plate 18 and the second filter plate 19 and promoting the flow of gas in the control box 12, thereby dissipating heat inside the control box 12.

[0055] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An integrated lifting mechanism based on a gear control component, characterized in that: It comprises a crane body (10) and a cab (11), wherein the cab (11) is mounted on the crane body (10), and a gear position control component is arranged inside the cab (11); The gear position control assembly comprises a control box (12), a plurality of control buttons (14) are provided on one side of the upper end of the control box (12), an operating rod (13) is provided in the middle of the upper end of the control box (12), a master controller (15) is provided on one side of the interior of the control box (12), a frequency converter (16) is provided on the lower side of the master controller (15), a through opening (17) is provided on the side wall of the control box (12), a guide frame (20) is fixedly provided on the inner side of the through opening (17), and a first cleaning box (21) is fixedly provided on the upper side of the interior of the control box (12). 1), a second cleaning box (22) is fixedly provided on the lower inner side of the control box (12), a first filter plate (18) and a second filter plate (19) are vertically slidably provided between the first cleaning box (21) and the second cleaning box (22), one side of the first filter plate (18) is in sliding contact with one side of the guide frame (20), the first filter plate (18) and the second filter plate (19) are in sliding contact with each other, and both sides of the interior of the first cleaning box (21) and both sides of the interior of the second cleaning box (22) are provided with a first cleaning assembly and a second cleaning assembly; The first cleaning assembly comprises two first rotating shafts (27), the two first rotating shafts (27) are rotatably connected to a side wall of the first cleaning box (21), one end of each of the first rotating shafts (27) is fixedly provided with a first circular plate (28), one side of each of the first circular plates (28) is provided with a first cleaning member (29), two first gears (30) are rotatably provided on one side of the outside of the first cleaning box (21), a first sliding block (31) is fixedly provided on the inner side of each of the first gears (30), and one end of each of the first rotating shafts (27) is provided with a first outer side. A slide groove (32), each of the first sliding blocks (31) slides horizontally in the first slide groove (32), two sleeves (33) are fixedly provided on one side wall of each of the first cleaning boxes (21), the inner side of each of the sleeves (33) is in sliding contact with the outer side of the first rotating shaft (27), two arc-shaped slide grooves (34) are symmetrically provided on the inner side of each of the sleeves (33), and two second sliding blocks (35) are symmetrically fixedly provided on the outer side of each of the first rotating shafts (27), and each two of the second sliding blocks (35) slide in the two arc-shaped slide grooves (34) respectively.

2. An integrated lifting mechanism based on a gear position control component according to claim 1, characterized in that: A first fixed plate (36) is fixedly provided on one side of the middle of the first filter plate (18), and a pair of first racks (37) are fixedly provided on the upper and lower sides of the first fixed plate (36), and one side of each of the first racks (37) is meshed with the outer side of the first gear (30). A first movable plate (23) is fixedly provided on both ends of the middle of the first filter plate (18), and two first electric telescopic rods (24) are provided on the lower side of the interior of the control box (12), and the protruding ends of the two first electric telescopic rods (24) are fixedly connected to the two first movable plates (23), and a first T-shaped slider (50) is fixedly provided on one side of each of the first gears (30), and each of the first T-shaped sliders (50) slides in an annular manner inside the side wall of the first cleaning box (21), and the inner side of each of the first gears (30) is in sliding contact with the outer side of the first rotating shaft (27), and the two arc-shaped slide grooves (34) are connected to each other at the head and tail to form a wave-shaped slide groove structure.

3. The integrated lifting mechanism based on the gear position control component according to claim 1 is characterized in that: The second cleaning assembly comprises two second rotating shafts (38), each of the second rotating shafts (38) is rotatably connected to the other side wall of the first cleaning box (21), a second gear (54) is fixedly provided on the outer side of each second rotating shaft (38), a third rotating shaft (39) is slidably provided inside each second rotating shaft (38), a pressure plate (42) is fixedly provided at one end of each third rotating shaft (39), a second circular plate (43) is provided on one side of each pressure plate (42), a second cleaning member (44) is provided on one side of each second circular plate (43), a third sliding block (40) is fixedly provided on one side of the third rotating shaft (39), a second sliding groove (41) is provided on one side of the second rotating shaft (38), and the third sliding block (40) slides horizontally in the second sliding groove (41).

4. The integrated lifting mechanism based on the gear position control component according to claim 3 is characterized in that: A second fixing plate (52) is fixedly provided on one side of the middle part of the second filter plate (19), and a pair of second racks (53) are fixedly provided on both the upper and lower sides of the second fixing plate (52), one side of each second rack (53) is meshed with the outer side of the second gear (54), and one side of each second gear (54) is fixedly provided with a second T-shaped slider (51), and each second T-shaped slider (51) slides in an annular manner inside the other side wall of the first cleaning box (21).

5. The integrated lifting mechanism based on the gear position control component according to claim 4 is characterized in that: Two annular grooves (45) are provided in the other side wall of the first cleaning box (21), an annular plate (46) is slidably provided inside each annular groove (45), a push block (47) is fixedly provided on one side of each pressure plate (42), and one end of each push block (47) is in sliding contact with an inclined surface on one side of the annular plate (46).

6. The integrated lifting mechanism based on the gear position control component according to claim 5, characterized in that: One side of each of the annular plates (46) is in an inclined structure, and a plurality of protrusions (48) are fixedly arranged at intervals on the inclined surface of one side of each of the annular plates (46). The outer side of each of the protrusions (48) is in sliding contact with one end of the push block (47), and a spring (68) is connected between one side of each of the third sliding blocks (40) and the inner side of the second sliding groove (41).

7. The integrated lifting mechanism based on the gear position control component according to claim 6 is characterized in that: A push rod (49) is fixedly provided on one side of each annular plate (46), a pair of push rods (55) are fixedly provided on the upper and lower sides of the second fixed plate (52), one end of each push rod (55) is in sliding contact with the inclined surface of one end of the push rod (49), two second movable plates (25) are fixedly provided at both ends of the middle part of the second filter plate (19), two second electric telescopic rods (26) are provided inside the control box (12), and the protruding ends of the two second electric telescopic rods (26) are fixedly connected to the two second movable plates (25), respectively, and the internal structure of the first cleaning box (21) is the same as the internal structure of the second cleaning box (22).

8. The integrated lifting mechanism based on the gear position control component according to claim 4 is characterized in that: A pair of first boxes (56) are provided on both upper and lower sides of the control box (12), and each pair of the first boxes (56) is located on both sides of the master controller (15). A second box (61) is connected between the upper and lower pairs of the first boxes (56) and the first cleaning box (21) and the second cleaning box (22), respectively. A plurality of spray valves (63) are provided between the upper and lower pairs of the second boxes (61) and the interior of the first cleaning box (21) and the interior of the second cleaning box (22), respectively.

9. The integrated lifting mechanism based on the gear position control component according to claim 8, characterized in that: A piston plate (57) is vertically slidably provided inside each of the first boxes (56); a connecting rod (71) is fixedly connected between each of the piston plates (57) and the second fixed plate (52); a first air chamber (58) and a second air chamber (59) are separated inside each of the first boxes (56) by the piston plate (57); a first one-way valve (60) is provided between the first air chamber (58) and the interior of the control box (12); a second one-way valve (62) is provided between the interior of the first air chamber (58) and the interior of the second box (61); a third one-way valve (69) is provided between the second air chamber (59) and the interior of the control box (12); and a fourth one-way valve (70) is provided between the second air chamber (59) and the interior of the second box (61).

10. The integrated lifting mechanism based on the gear position control component according to claim 1, characterized in that: A plurality of collecting boxes (64) are provided inside the control box (12); the interior of each collecting box (64) is connected to the interior of the first cleaning box (21) by a first connecting pipe (65); the interior of the collecting box (64) is connected to the interior of the second cleaning box (22) by a second connecting pipe (66); and one side of the collecting box (64) is connected to an external vacuum cleaner by a connecting port (67).

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