Closed sweeper

Abstract

The invention discloses a closed sweeper, and relates to the technical field of sweepers, the closed sweeper comprises a sweeper main body and an adjusting assembly, the front end of the sweeper main body is symmetrically provided with fixing frames, the lower ends of the fixing frames are slidably connected with a lifting seat, the top of the lifting seat is provided with a motor, and the bottom of the motor is connected with a driving shaft; and a cleaning brush is fixed at the bottom of the driving shaft. During sweeping, an electric cylinder can drive a driving plate to move downwards, so that a lifting seat is driven to move downwards through a spring seat, at the moment, a fixing frame can guide the driving plate and the lifting seat, the stability of the lifting seat in the moving process is improved, after a sweeping brush is attached to the ground, the bottom of the lifting seat can be shielded by the fixing frame, the lifting seat stops moving downwards, and the spring seat can be compressed; and at the moment, a driving plate can slide relative to the lifting seat conveniently, so that a driving column is pushed through a guide groove, a rotating shell rotates, and extending shells on the two sides can be automatically opened outwards.

Description

Technical Field

[0001] The present invention relates to the technical field of sweeping machines, in particular to a closed sweeping machine. Background Art

[0002] A closed-type sweeper is a mechanical equipment specially used for cleaning the ground. It is usually used in large areas such as factories, warehouses, large squares, roads, etc. Compared with traditional open-type sweepers, the operating space of a closed-type sweeper is completely closed, similar to a cab. The operator can operate in a closed compartment to avoid being affected by external environmental factors such as weather and dust.

[0003] For example, the invention with publication number CN110904900B discloses a sweeping device for a sweeper. The invention arranges a bearing plate, a first slider and a second slider in the dust collecting chamber, the second slider moves downward at a uniform speed, and a distance measuring switch is arranged on the second slider. The bearing plate and the first slider are connected by a compression spring. When there is a lot of garbage, the bearing plate descends quickly, the first and second shooting switches are triggered quickly, and the first slider descends quickly, so that the distance measuring switch is triggered, and the power of the dust suction fan increases. When there is less garbage, the fan power is smaller. The power of the dust suction fan can be adjusted in real time according to the amount of garbage, saving energy and ensuring the dust suction effect. However, in actual use, this type of sweeper is not convenient to change the area to be swept. Therefore, when sweeping a wider road, it is necessary to sweep back and forth multiple times, resulting in a relatively general overall cleaning effect.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a closed sweeping machine is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a closed type sweeping machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A closed sweeper, comprising a sweeper body and an adjustment component, wherein a fixed frame is symmetrically arranged at the front end of the sweeper body, and a lifting seat is slidably connected to the lower end of the fixed frame, a motor is arranged on the top of the lifting seat, a driving shaft is connected to the bottom of the motor, and a cleaning brush is fixed to the bottom of the driving shaft, the adjustment component is arranged at the front of the sweeper body, the adjustment component comprises an electric cylinder, a driving plate, a spring seat, a guide groove, a driving column, a rotating shell, an extension shell, a driven shaft, a guide frame and a brush plate, an electric cylinder is arranged on the top of the fixed frame, and a driving plate is connected to the bottom of the electric cylinder, a spring seat is connected to one end of the bottom of the driving plate, and the spring seat is fixedly connected to the lifting seat, a guide groove is provided on one side of the driving plate, and a driving column is slidably connected inside the guide groove, a rotating shell is fixed to one end of the driving column, and an extension shell is slidably connected to the outer side of one end of the rotating shell, a driven shaft is rotatably connected to the inside of one end of the extension shell, a guide frame is fixed to the bottom of the driven shaft, and a brush plate is arranged at the bottom of the guide frame.

[0007] Furthermore, the driving plate is slidably connected to the lifting seat, and the lifting seat is rotatably connected to the rotating shell.

[0008] Furthermore, a synchronization component is arranged inside the rotating shell, and the synchronization component includes a driving gear, a transmission gear and a transmission cylinder. A driving gear is fixed to the upper outer side of the driving shaft, and a transmission gear is meshed on one side of the driving gear. A transmission cylinder is fixed on one side of the transmission gear.

[0009] Furthermore, the synchronization assembly also includes a transmission rod, a convex strip, a driven gear and a synchronization gear. The transmission rod is slidably connected to the inside of the transmission cylinder, and a convex strip is provided on the outside of the transmission rod. The transmission rod is rotatably connected to the extension shell, and one end of the transmission rod is connected to the driven gear. The end of the driven gear is meshed with the synchronization gear, and the synchronization gear is fixedly connected to the driven shaft.

[0010] Furthermore, the convex strip is slidably connected to the transmission cylinder, and the transmission cylinder is rotatably connected to the rotating shell.

[0011] Furthermore, an extension component is connected to one side of the extension shell, and the extension component includes an electric push rod, an adjustment plate, a sliding rod and a guide plate. An electric push rod is fixed to one side of the extension shell, and an adjustment plate is arranged at the bottom of the electric push rod. A sliding rod is fixed to one end of the adjustment plate, and the outer side of the sliding rod is slidably connected to the guide plate, and the guide plate is fixedly connected to the rotating shell.

[0012] Furthermore, the extension assembly also includes a rotating sleeve, a connecting rod and a sliding seat, one end of the adjustment plate is internally rotatably connected to the rotating sleeve, the bottom of the rotating sleeve is rotatably connected to the connecting rod, and the bottom of the connecting rod is rotatably connected to the sliding seat.

[0013] Furthermore, the slide is slidably connected to the guide frame, and the slide is fixedly connected to the brush plate.

[0014] Furthermore, a dust reduction assembly is provided on the upper portion of the extension shell, and the dust reduction assembly includes a sliding column, a push-pull plate, a piston plate and a fixed cylinder. A sliding column is fixed to the top of the driven shaft, and the outer side of the sliding column is slidably connected to the push-pull plate, the push-pull plate is T-shaped, and the piston plate is fixed to the end of the push-pull plate, the outer side of the piston plate is slidably connected to the fixed cylinder, and the fixed cylinder is slidably connected to the push-pull plate, and the fixed cylinder is fixedly connected to the extension shell.

[0015] Furthermore, the dust reduction assembly also includes a first one-way valve, a second one-way valve, a diverter pipe and a spray head. The first one-way valve is connected to one end of the fixed cylinder, and the second one-way valve is arranged on both sides of the fixed cylinder. The end of the second one-way valve is connected to the diverter pipe, and a spray head is arranged on the outside of the diverter pipe.

[0016] The present invention provides a closed type sweeping machine, which has the following beneficial effects: When the cleaning brush is not in contact with the ground, the bottom of the lifting seat will be blocked by the fixing frame, so that the lifting seat stops moving downward, and the spring seat will be compressed. At this time, the driving plate is easy to slide with the lifting seat, thereby pushing the driving column through the guide groove to rotate the rotating shell, so that the extension shells on both sides can be automatically opened outward. Therefore, by adjusting the angle of the extension shell when it is opened, the spacing between the brush plates on both sides can be controlled, so that the width of the cleaning can be expanded according to the needs, which is beneficial to improving the cleaning efficiency. When cleaning is not in use, only the electric cylinder needs to be retracted. In the process of moving the cleaning brush upward, the angles of the rotating shells on both sides can be reset at the same time, so as to avoid excessive expansion and occupying a large space when moving.

[0017] 2. When the cleaning width needs to be further expanded, the present invention can also start the electric push rod, so that the adjustment plate drives the slide rod to move downward. Since the guide plate is fixed on the rotating shell, the slide rod can drive the extension shell to slide on the rotating shell when squeezing the guide plate, so that the brush plate moves away from the cleaning brush. In this process, the adjustment plate will also drive the rotating sleeve to move downward, and the slide seat can be squeezed by the connecting rod, so that all the slide seats move toward the outer end of the guide frame, and the radius of the circular ring composed of multiple brush plates can be expanded. Therefore, during the adjustment process, part of the brush plate can be kept in contact with the cleaning brush at all times. Therefore, when working, the cleaning brush can intercept the garbage swept by the brush plate, so as to sweep the garbage to the center of the bottom of the cleaning vehicle for guidance, thereby improving the effect of concentrated adsorption of the adsorption mechanism inside the cleaning vehicle body.

[0018] 3. When the motor of the present invention drives the cleaning brush to work through the driving shaft, it can also drive the transmission cylinder to rotate through the driving gear and the transmission gear, and drive the transmission rod to work through the convex strip, so that the driving shaft can be rotated through the driven gear and the synchronous gear, so that the brush plate and the cleaning brush can work at the same time, and the brush plate and the cleaning brush have the same turning direction, the brush plate can sweep the garbage onto the cleaning brush, and the brush on the brush plate is squeezed and deformed with the ground, so there will be no large gap between the multiple brush plates, avoiding affecting the effect of sweeping the floor, and after changing the spacing between the rotating shell and the extension shell, since the transmission cylinder and the transmission rod can slide synchronously, after adjustment, it will not affect its normal transmission work.

[0019] 4. In the process of rotation of the driven shaft, the present invention will squeeze the push-pull plate through the sliding column, so that the piston plate slides in the fixed cylinder, and when the piston plate moves toward the sliding column, a negative pressure will be formed at one end of the fixed cylinder. Since the first one-way valve is connected to the water tank inside the main body of the sweeper through a pipeline, the water inside the water tank can be pumped into the fixed cylinder. When the piston plate moves toward the first one-way valve, the internal water can be squeezed into the second one-way valve and sprayed out from the spray head through the diverter pipe. Therefore, during the cleaning process, the dust spray mist generated during cleaning can be automatically settled without adding an additional power source, which is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a closed-type sweeping machine of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of an adjustment component of a closed-type sweeping machine of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of a driving plate of a closed type sweeping machine of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of a dust reduction component of a closed-type sweeping machine of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of a synchronous component of a closed-type sweeping machine of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of an extension component of a closed-type sweeping machine of the present invention.

[0021] In the figure: 1, the main body of the sweeper; 2, the fixing frame; 3, the lifting seat; 4, the motor; 5, the driving shaft; 6, the cleaning brush; 7, the adjusting assembly; 701, the electric cylinder; 702, the driving plate; 703, the spring seat; 704, the guide groove; 705, the driving column; 706, the rotating shell; 707, the extension shell; 708, the driven shaft; 709, the guide frame; 710, the brush plate; 8, the synchronization assembly; 801, the driving gear; 802, the transmission gear; 803, the transmission cylinder; 804, the transmission rod; 8 05, convex strip; 806, driven gear; 807, synchronous gear; 9, extension assembly; 901, electric push rod; 902, adjustment plate; 903, slide rod; 904, guide plate; 905, rotating sleeve; 906, connecting rod; 907, slide seat; 10, dust suppression assembly; 1001, slide column; 1002, push-pull plate; 1003, piston plate; 1004, fixed cylinder; 1005, first one-way valve; 1006, second one-way valve; 1007, diverter pipe; 1008, spray head. DETAILED DESCRIPTION

[0022] See also Figures 1 to 6 The present invention provides a technical solution: a closed sweeper, including a sweeper body 1 and an adjustment component 7, a fixing frame 2 is symmetrically arranged at the front end of the sweeper body 1, and a lifting seat 3 is slidably connected to the lower end of the fixing frame 2, a motor 4 is arranged on the top of the lifting seat 3, and a driving shaft 5 is connected to the bottom of the motor 4, and a cleaning brush 6 is fixed to the bottom of the driving shaft 5, and the adjustment component 7 is arranged at the front of the sweeper body 1, and the adjustment component 7 includes an electric cylinder 701, a driving plate 702, a spring seat 703, a guide groove 704, a driving column 705, a rotating shell 706, an extension shell 707, a driven shaft 708, a guide frame 709 and a brush plate 710, and the fixing frame 2 An electric cylinder 701 is arranged on the top, and a driving plate 702 is connected to the bottom of the electric cylinder 701, a spring seat 703 is connected to one end of the bottom of the driving plate 702, and the spring seat 703 is fixedly connected to the lifting seat 3, a guide groove 704 is opened on one side of the driving plate 702, and a driving column 705 is slidably connected inside the guide groove 704, a rotating shell 706 is fixed to one end of the driving column 705, and an extension shell 707 is slidably connected to the outside of one end of the rotating shell 706, a driven shaft 708 is rotatably connected to one end of the extension shell 707, and a guide frame 709 is fixed to the bottom of the driven shaft 708, and a brush plate 710 is arranged at the bottom of the guide frame 709.

[0023] See also Figures 1 to 5The driving plate 702 is slidably connected to the lifting seat 3, and the lifting seat 3 is rotatably connected to the rotating shell 706. A synchronous assembly 8 is arranged inside the rotating shell 706. The synchronous assembly 8 includes a driving gear 801, a transmission gear 802 and a transmission cylinder 803. The driving gear 801 is fixed to the outer side of the upper part of the driving shaft 5, and the transmission gear 802 is meshed on one side of the driving gear 801. The transmission cylinder 803 is fixed on one side of the transmission gear 802. The synchronous assembly 8 also includes a transmission rod 804, a convex strip 805, and a driven gear The transmission cylinder 803 is slidably connected with the transmission rod 804, and the outer side of the transmission rod 804 is provided with a convex strip 805, the transmission rod 804 is rotatably connected with the extension shell 707, and one end of the transmission rod 804 is connected with the driven gear 806, the end of the driven gear 806 is meshed with the synchronous gear 807, and the synchronous gear 807 is fixedly connected with the driven shaft 708, the convex strip 805 is slidably connected with the transmission cylinder 803, and the transmission cylinder 803 is rotatably connected with the rotating shell 706; The specific operation is as follows: the electric cylinder 701 drives the driving plate 702 to move downward, and the lifting seat 3 is driven downward through the spring seat 703. At this time, the fixed frame 2 will guide the driving plate 702 and the lifting seat 3 to improve their stability during movement. When the cleaning brush 6 is in contact with the ground, the brush on the brush plate 710 will be squeezed and deformed with the ground. Therefore, there will be no large gap between the multiple brush plates 710 to avoid affecting the effect of subsequent sweeping. When the bottom of the lifting seat 3 is blocked by the fixed frame 2, the spring seat 703 will be compressed. At this time, the driving plate 702 is easy to slide with the lifting seat 3, thereby pushing the driving column 705 through the guide groove 704, so that the rotating shell 706 rotates, and the extension shells 707 on both sides can be automatically opened outward. Therefore, by adjusting the angle of the extension shell 707 when it is opened, the distance between the brush plates 710 on both sides can be controlled, so that the width during cleaning can be expanded according to needs. When the motor 4 drives the cleaning brush 6 to work through the driving shaft 5, The driving gear 801 and the transmission gear 802 can drive the transmission cylinder 803 to rotate, and the convex strip 805 can drive the transmission rod 804 to work, so that the driving shaft 5 can be rotated through the driven gear 806 and the synchronous gear 807, so that the brush plate 710 and the cleaning brush 6 can work at the same time, and the brush plate 710 and the cleaning brush 6 have the same turning direction, the brush plate 710 can sweep the garbage onto the cleaning brush 6, and the cleaning brush 6 will sweep the garbage to the bottom center of the cleaning vehicle body 1 for guidance, so that the adsorption mechanism inside the cleaning vehicle body 1 can adsorb and collect the garbage, and after changing the spacing between the rotating shell 706 and the extension shell 707, since the transmission cylinder 803 and the transmission rod 804 can slide synchronously, after adjustment, it will not affect its normal transmission work, and when not cleaning, it only needs to shrink the electric cylinder 701. In the process of moving the cleaning brush 6 upward, the angles of the rotating shells 706 on both sides can be reset at the same time to avoid excessive expansion and occupying a large space when moving.

[0024] See also Figures 4 to 6 , one side of the extension shell 707 is connected to an extension assembly 9, the extension assembly 9 includes an electric push rod 901, an adjustment plate 902, a slide bar 903 and a guide plate 904, one side of the extension shell 707 is fixed with an electric push rod 901, and an adjustment plate 902 is arranged at the bottom of the electric push rod 901, one end of the adjustment plate 902 is fixed with a slide bar 903, and the outer side of the slide bar 903 is slidably connected with a guide plate 904, and the guide plate 904 is fixedly connected to the rotating shell 706 The extension assembly 9 also includes a rotating sleeve 905, a connecting rod 906 and a slide 907. The rotating sleeve 905 is rotatably connected to one end of the adjustment plate 902, and the bottom of the rotating sleeve 905 is rotatably connected to the connecting rod 906, and the bottom of the connecting rod 906 is rotatably connected to the slide 907. The slide 907 is slidably connected to the guide frame 709, and the slide 907 is fixedly connected to the brush plate 710. The upper part of the extension shell 707 is provided with a dust reduction assembly 10, and the dust reduction assembly 10 includes The sliding column 1001, the push-pull plate 1002, the piston plate 1003 and the fixed cylinder 1004, the sliding column 1001 is fixed on the top of the driven shaft 708, and the push-pull plate 1002 is slidably connected to the outside of the sliding column 1001, the push-pull plate 1002 is T-shaped, and the piston plate 1003 is fixed to the end of the push-pull plate 1002, the fixed cylinder 1004 is slidably connected to the outside of the piston plate 1003, and the fixed cylinder 1004 is slidably connected to the push-pull plate 1002, and fixed The cylinder 1004 is fixedly connected to the extension shell 707. The dust suppression assembly 10 further includes a first one-way valve 1005, a second one-way valve 1006, a shunt pipe 1007 and a spray head 1008. One end of the fixed cylinder 1004 is connected to the first one-way valve 1005, and the second one-way valve 1006 is arranged on both sides of the fixed cylinder 1004. The end of the second one-way valve 1006 is connected to the shunt pipe 1007, and the outer side of the shunt pipe 1007 is provided with a spray head 1008. The specific operation is as follows: the electric push rod 901 drives the slide bar 903 to move downward through the adjustment plate 902. At this time, since the guide plate 904 is fixed on the rotating shell 706, the slide bar 903 can drive the extension shell 707 to slide on the rotating shell 706 when squeezing the guide plate 904, so that the brush plate 710 moves away from the cleaning brush 6. During this process, the adjustment plate 902 will also drive the rotating sleeve 905 to move downward, and the slide seat 907 can be squeezed through the connecting rod 906, so that all the slide seats 907 move toward the outer end of the guide frame 709, and the radius of the circular ring composed of multiple brush plates 710 can be expanded, so that during the adjustment process, part of the brush plate 710 can be kept in contact with the cleaning brush 6. Therefore, during operation, the cleaning brush 6 can intercept the garbage swept by the brush plate 710 so that The garbage is guided to the center of the bottom of the sweeper body 1, and during the cleaning process, the driven shaft 708 will also squeeze the push-pull plate 1002 through the sliding column 1001, so that the piston plate 1003 slides in the fixed cylinder 1004, and when the piston plate 1003 moves toward the sliding column 1001, a negative pressure will be formed at one end inside the fixed cylinder 1004. Since the first one-way valve 1005 is connected to the water tank inside the sweeper body 1 through a pipeline, the water inside the water tank can be pumped into the fixed cylinder 1004. When the piston plate 1003 moves toward the first one-way valve 1005, the internal water can be squeezed into the second one-way valve 1006 and sprayed out from the spray head 1008 through the diverter pipe 1007, automatically settling the dust spray mist generated during cleaning.

[0025] In summary, when the closed-type sweeper is in use, the electric cylinder 701 first drives the driving plate 702 to move downward, which will drive the lifting seat 3 to move downward through the spring seat 703. At this time, the fixed frame 2 will guide the driving plate 702 and the lifting seat 3, and when the cleaning brush 6 is in contact with the ground, the brush on the brush plate 710 will be squeezed and deformed with the ground, so there will be no large gap between the multiple brush plates 710. Then, the bottom of the lifting seat 3 will be blocked by the fixed frame 2, and the spring seat 703 will be compressed. At this time, the driving plate 702 is easy to slide between the lifting seat 3, thereby pushing the driving column 705 through the guide groove 704, causing the rotating shell 706 to rotate, so that the extension shells 707 on both sides can be automatically opened outward. Therefore, by adjusting the extension shells 707 The angle when opened can control the spacing between the brush plates 710 on both sides, so that the width during cleaning can be expanded according to needs. Secondly, when the motor 4 drives the cleaning brush 6 to work through the driving shaft 5, it can also drive the transmission cylinder 803 to rotate through the active gear 801 and the transmission gear 802, and drive the transmission rod 804 to work through the convex strip 805, so that the driving shaft 5 can be rotated through the driven gear 806 and the synchronous gear 807, so that the brush plate 710 and the cleaning brush 6 can work at the same time, and the brush plate 710 and the cleaning brush 6 have the same steering direction, the brush plate 710 can sweep the garbage onto the cleaning brush 6, and the cleaning brush 6 will sweep the garbage to the bottom center of the cleaning vehicle body 1 for guidance, so that the adsorption mechanism inside the cleaning vehicle body 1 can adsorb the garbage. After that, the electric push rod 901 can be started, so that the adjustment plate 902 drives the sliding rod 903 to move downward. Therefore, when the sliding rod 903 squeezes the guide plate 904, it can drive the extension shell 707 to slide on the rotating shell 706, so that the brush plate 710 moves away from the cleaning brush 6. In this process, the adjustment plate 902 will also drive the rotating sleeve 905 to move downward, and it can squeeze the sliding seat 907 through the connecting rod 906, so that all the sliding seats 907 move to the outer end of the guide frame 709, so as to expand the radius of the circular ring composed of multiple brush plates 710, so that part of the brush plates 710 can always contact with the cleaning brush 6, and after changing the spacing between the rotating shell 706 and the extension shell 707, since the transmission cylinder 803 and the transmission rod 804 can slide synchronously, when adjusting After that, it will not affect its normal transmission work. Then, the driven shaft 708 will squeeze the push-pull plate 1002 through the sliding column 1001, so that the piston plate 1003 slides in the fixed cylinder 1004, and when the piston plate 1003 moves toward the sliding column 1001, a negative pressure is formed at one end of the fixed cylinder 1004. Since the first one-way valve 1005 is connected to the water tank inside the cleaning vehicle body 1 through a pipeline, the water inside the water tank can be pumped into the fixed cylinder 1004. When the piston plate 1003 moves toward the first one-way valve 1005, the internal water can be squeezed into the second one-way valve 1006 and sprayed out from the spray head 1008 through the shunt pipe 1007, so as to automatically settle the dust spray mist generated during cleaning. Finally, when cleaning is not done,It is only necessary to shrink the electric cylinder 701, and in the process of moving the cleaning brush 6 upward, the angles of the rotating shells 706 on both sides can be reset at the same time, so as to avoid excessive expansion and occupying a large space during movement.

[0026] 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. A closed type sweeping machine, characterized in that: The invention comprises a cleaning vehicle body (1) and an adjustment component (7), wherein a fixing frame (2) is symmetrically arranged at the front end of the cleaning vehicle body (1), and a lifting seat (3) is slidably connected to the lower end of the fixing frame (2), a motor (4) is arranged on the top of the lifting seat (3), and a driving shaft (5) is connected to the bottom of the motor (4), and a cleaning brush (6) is fixed to the bottom of the driving shaft (5), and the adjustment component (7) is arranged at the front of the cleaning vehicle body (1), and the adjustment component (7) comprises an electric cylinder (701), a driving plate (702), a spring seat (703), a guide groove (704), a driving column (705), a rotating shell (706), an extension shell (707), a driven shaft (708), a guide frame (709) and a brush plate (710), and the fixing frame (2) is arranged on the top of the lifting seat (3). An electric cylinder (701) is arranged, and a driving plate (702) is connected to the bottom of the electric cylinder (701), a spring seat (703) is connected to one end of the bottom of the driving plate (702), and the spring seat (703) is fixedly connected to the lifting seat (3), a guide groove (704) is opened on one side of the driving plate (702), and a driving column (705) is slidably connected inside the guide groove (704), a rotating shell (706) is fixed to one end of the driving column (705), and an extension shell (707) is slidably connected to the outer side of one end of the rotating shell (706), a driven shaft (708) is rotatably connected to the inside of one end of the extension shell (707), a guide frame (709) is fixed to the bottom of the driven shaft (708), and a brush plate (710) is arranged at the bottom of the guide frame (709).

2. A closed type sweeping machine according to claim 1, characterized in that: The driving plate (702) is slidably connected to the lifting seat (3), and the lifting seat (3) is rotationally connected to the rotating shell (706).

3. The enclosed sweeping machine according to claim 1, characterized in that: A synchronizing assembly (8) is disposed inside the rotating shell (706), and the synchronizing assembly (8) comprises a driving gear (801), a transmission gear (802) and a transmission cylinder (803); the driving gear (801) is fixed to the outer side of the upper portion of the driving shaft (5), and the transmission gear (802) is meshed on one side of the driving gear (801); and the transmission cylinder (803) is fixed on one side of the transmission gear (802).

4. The enclosed sweeping machine according to claim 3, characterized in that: The synchronization assembly (8) further comprises a transmission rod (804), a convex strip (805), a driven gear (806) and a synchronization gear (807); the transmission rod (804) is slidably connected to the interior of the transmission cylinder (803), and a convex strip (805) is provided on the outside of the transmission rod (804); the transmission rod (804) is rotationally connected to the extension shell (707), and one end of the transmission rod (804) is connected to the driven gear (806); the end of the driven gear (806) is meshed with the synchronization gear (807), and the synchronization gear (807) is fixedly connected to the driven shaft (708).

5. The enclosed sweeping machine according to claim 4, characterized in that: The convex strip (805) is slidably connected to the transmission cylinder (803), and the transmission cylinder (803) is rotationally connected to the rotating shell (706).

6. The enclosed sweeping machine according to claim 1, characterized in that: An extension component (9) is connected to one side of the extension shell (707), and the extension component (9) comprises an electric push rod (901), an adjustment plate (902), a slide bar (903) and a guide plate (904). The electric push rod (901) is fixed to one side of the extension shell (707), and the adjustment plate (902) is arranged at the bottom of the electric push rod (901). The slide bar (903) is fixed to one end of the adjustment plate (902), and the outer side of the slide bar (903) is slidably connected to the guide plate (904), and the guide plate (904) is fixedly connected to the rotating shell (706).

7. The enclosed sweeping machine according to claim 6, characterized in that: The extension assembly (9) further comprises a rotating sleeve (905), a connecting rod (906) and a sliding seat (907); one end of the adjustment plate (902) is internally rotatably connected to the rotating sleeve (905), the bottom of the rotating sleeve (905) is rotatably connected to the connecting rod (906), and the bottom of the connecting rod (906) is rotatably connected to the sliding seat (907).

8. The enclosed sweeping machine according to claim 7, characterized in that: The slide seat (907) is slidably connected to the guide frame (709), and the slide seat (907) is fixedly connected to the brush plate (710).

9. The enclosed sweeping machine according to claim 1, characterized in that: A dust suppression component (10) is arranged on the upper part of the extension shell (707), and the dust suppression component (10) comprises a sliding column (1001), a push-pull plate (1002), a piston plate (1003) and a fixed cylinder (1004); the sliding column (1001) is fixed on the top of the driven shaft (708), and the outer side of the sliding column (1001) is slidably connected to the push-pull plate (1002); the push-pull plate (1002) is T-shaped, and the piston plate (1003) is fixed at the end of the push-pull plate (1002); the outer side of the piston plate (1003) is slidably connected to the fixed cylinder (1004), and the fixed cylinder (1004) is slidably connected to the push-pull plate (1002), and the fixed cylinder (1004) is fixedly connected to the extension shell (707).

10. The enclosed sweeping machine according to claim 9, characterized in that: The dust suppression assembly (10) further comprises a first one-way valve (1005), a second one-way valve (1006), a diverter pipe (1007) and a spray head (1008); one end of the fixed cylinder (1004) is connected to the first one-way valve (1005), and the second one-way valve (1006) is arranged on both sides of the fixed cylinder (1004); the end of the second one-way valve (1006) is connected to the diverter pipe (1007), and the spray head (1008) is arranged on the outside of the diverter pipe (1007).

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