Automatic clearing device

Abstract

The utility model provides an automatic clearing device which comprises a melt chute, the melt chute comprises a plurality of unit chutes, and the plurality of unit chutes are connected end to end and spliced to form the melt chute; a horizontal moving mechanism moving in the length direction of the melt chute is arranged on one side of the melt chute, a lifting supporting seat is arranged at the moving end of the horizontal moving mechanism, a lifting mechanism is arranged on the lifting supporting seat, a tool apron is arranged at the lifting end of the lifting mechanism, a tool mounting part is mounted on the tool apron, and a cutter is mounted on the tool mounting part. A cutter group matched with the melt chute in shape is arranged on the cutter mounting part; according to the utility model, the high-temperature melt crystallization shell in the melt chute can be effectively and comprehensively cleared away instead of manual work.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning devices, in particular to an automatic cleaning device for high-temperature melt crystallization shells. Background Art

[0002] When treating industrial hazardous waste liquid, a waste liquid incineration device is usually used. This device can incinerate industrial hazardous waste liquid. Its combustion products are neutralized with sodium bicarbonate solution to become high-temperature molten materials. The high-temperature molten materials are led out of the incineration boiler through a fixed melt chute. The molten temperature is as high as 1100°C. However, the high-temperature alkaline molten material flowing out of the boiler of the waste liquid incineration device will quickly form a layer of high-temperature molten crystal shell on the surface of the molten material in the melt chute after losing heat in the air. These shells must be cleaned in time, otherwise they will block the molten outflow channel.

[0003] In the prior art, the cleaning of the crystal shell of high-temperature molten material is done manually, which consumes a lot of human resources and also poses safety hazards and environmental pollution. In addition, the molten material chute is welded. Due to the influence of the weld and the weld heat-affected zone, the chute is easily perforated and scrapped under the scouring of high-temperature molten materials, with a short service life, affecting the normal operation of the device, shortening the maintenance cycle of the device, and increasing the operating cost of the device. Utility Model Content

[0004] The utility model aims to provide an automatic cleaning device, aiming to solve the technical problem that a molten material crystal shell blocks a molten material outflow channel.

[0005] To achieve the above-mentioned purpose, the utility model provides an automatic cleaning device, comprising a molten material chute, wherein the molten material chute comprises a plurality of unit chutes, and the plurality of unit chutes are connected end to end and spliced ​​to form the molten material chute;

[0006] A horizontal moving mechanism that moves along the length direction of the molten material chute is arranged on one side of the molten material chute, a lifting support seat is arranged on the moving end of the horizontal moving mechanism, a lifting mechanism is arranged on the lifting support seat, a tool seat is arranged on the lifting end of the lifting mechanism, a tool mounting part is installed on the tool seat, a tool group matching the groove shape of the molten material chute is arranged on the tool mounting part, and the tool group is used to remove the crystallization shell of the high-temperature molten material.

[0007] As a further improvement of the above solution, the unit chute includes a casting for contacting with the high-temperature melt.

[0008] and a plugging piece arranged on the back of the casting and matching the shape of the back of the casting, wherein the plugging piece and the back of the casting form a cooling cavity;

[0009] The unit chute is a curved piece with an arc-shaped cross section, a cooling cavity is provided inside the curved piece, a water inlet connected to the cooling cavity is provided at one end of the curved piece plate edge, and a water outlet connected to the cooling cavity is provided at the other end;

[0010] The water inlets and water outlets between the adjacent unit chutes are connected via flange pipes;

[0011] Both ends of the outer wall of the unit chute are respectively provided with ears, and the adjacent unit chutes are connected into one body through the ears.

[0012] As a further improvement of the above scheme, the tool holder includes a heat insulation mounting plate, a tool holder seat plate is arranged on one side of the heat insulation mounting plate, two heat insulation mounting blocks are arranged on the end surface of the tool holder seat plate at intervals, two rotating shaft mounting seats are arranged between the heat insulation mounting blocks at intervals, a movable tool rod is movably installed between the rotating shaft mounting seats, and pressure plates are installed at both upper and lower ends of the two rotating shaft mounting seats.

[0013] As a further improvement of the above scheme, the tool mounting portion includes a tool rod flange adapted to the movable tool rod, a thermal insulation bushing is provided on one side of the tool rod flange, a flange adapter is provided on one side of the thermal insulation bushing, a thermal insulation flange gasket is provided on one side of the flange adapter, an installation tool rod with one end connected to the movable tool rod and the other end passing through the thermal insulation flange gasket is installed in the flange adapter, and mounting holes adapted to the tool group are provided at intervals on the installation tool rod.

[0014] As a further improvement of the above solution, the tool set includes a plurality of tools, one end of which is connected to the mounting hole in an adjustable length, and the other end is provided with a blade for removing the high-temperature molten crystal shell in the molten material chute.

[0015] As a further improvement of the above solution, the cutter is connected to the mounting hole through a threaded connection to achieve a length-adjustable connection, and the blade ends of several cutters are adjusted to a length that matches the groove shape of the unit chute.

[0016] As a further improvement of the above-mentioned scheme, the horizontal moving mechanism includes a first rodless cylinder and a third slide rail arranged parallel to the first rodless cylinder, a third slider is slidably arranged on the third slide rail, and the third slider and the slider on the first rodless cylinder constitute the moving end of the horizontal moving mechanism, and the lifting support seat is arranged across the third slider and the slider on the first rodless cylinder.

[0017] As a further improvement of the above scheme, the lifting mechanism includes two second rodless cylinders, which are vertically arranged in parallel and spaced apart on the lifting support seat, and the sliders of the two second rodless cylinders constitute the lifting end of the lifting mechanism, and the tool seat is horizontally arranged on the sliders of the two second rodless cylinders.

[0018] As a further improvement of the above solution, the horizontal movement mechanism includes a first drive motor, a first screw rod drivingly connected to an output end of the first drive motor, and a first screw rod nut slidably sleeved on the first screw rod;

[0019] It also includes a horizontal slide rail arranged parallel to the first screw rod and a first slider slidably arranged on the horizontal slide rail. The first slider is fixedly arranged on the first screw rod nut, and the lifting support seat is arranged on the first slider.

[0020] As a further improvement of the above solution, the lifting mechanism includes a second drive motor, a second screw rod drivingly connected to the output end of the second drive motor, and a second screw rod nut slidably sleeved on the second screw rod.

[0021] It also includes a vertical slide rail arranged parallel to the second screw rod and a second slider slidably arranged on the vertical slide rail, the second slider is provided with a lifting mounting plate, and the knife seat is arranged on the lifting mounting plate.

[0022] Since the utility model adopts the above technical solution, the beneficial effects of this application are:

[0023] The utility model provides an automatic cleaning device, comprising a molten material chute, wherein the molten material chute comprises a plurality of unit chutes, and the plurality of unit chutes are connected end to end and spliced ​​to form the molten material chute;

[0024] A horizontal moving mechanism that moves along the length direction of the melt chute is arranged on one side of the melt chute, a lifting support seat is arranged on the moving end of the horizontal moving mechanism, a lifting mechanism is arranged on the lifting support seat, a knife seat is arranged on the lifting end of the lifting mechanism, a knife mounting part is installed on the knife seat, and a knife group that matches the trough shape of the melt chute is arranged on the knife mounting part; firstly, in the utility model, the knife group is arranged to match the trough shape of the melt chute, so as to effectively remove the high-temperature molten crystal shell in the melt chute, and a horizontal moving mechanism that moves along the length direction of the melt chute and a lifting mechanism arranged on the horizontal moving mechanism are also arranged, and a knife seat and a knife group are arranged on the lifting mechanism, so that the device can control the movement of the knife group to replace manual cleaning, saving time and labor, thereby eliminating safety hazards;

[0025] In addition, the conventional integrally welded melt chute is arranged in the form of a unit component (unit chute), and the unit chute is spliced ​​into a melt chute of a required length, which can better ensure the quality and facilitate installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the description of the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the utility model. For ordinary technicians in this field, without paying creative work, other drawings can be obtained based on the structures shown in these drawings, which all belong to the scope of protection of the utility model.

[0027] Figure 1 It is a three-dimensional structural schematic diagram of an automatic cleaning device disclosed in the utility model;

[0028] Figure 2 It is a partial exploded schematic diagram of the structure of an automatic cleaning device disclosed in the utility model;

[0029] Figure 3 It is a three-dimensional schematic diagram of the partial structure of an automatic cleaning device disclosed in the utility model;

[0030] Figure 4 for Figure 3 Explosion diagram of some structures;

[0031] Figure 5 It is a three-dimensional structural schematic diagram of the unit chute disclosed in the utility model;

[0032] Figure 6 It is a schematic diagram of the main view of the unit chute disclosed in the utility model;

[0033] Figure 7 It is a side view schematic diagram of the unit chute disclosed in the utility model;

[0034] Figure 8 for Figure 6 AA cross-sectional view of ;

[0035] Reference numerals:

[0036] 1. Unit chute; 11. Water inlet; 12. Water outlet; 13. Casting; 14. Blocking piece; 2. Flange pipe; 3. Horizontal moving mechanism; 4. Lifting mechanism; 5. Lifting support seat; 6. Lifting mounting plate; 7. Knife holder; 71. Insulation mounting plate; 72. Knife holder seat plate; 73. Insulation mounting block; 74. Rotating shaft mounting seat; 75. Movable knife bar; 76. Press plate; 8. Knife tool mounting part; 81. Knife bar flange; 82. Insulation bushing; 83. Flange adapter; 84. Insulation flange gasket; 85. Install knife bar; 9. Knife. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that all directional indications (such as up, down, etc.) in the implementation mode of the utility model are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] Furthermore, the technical solutions between the various implementation modes of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] See also Figure 1-Figure 4 The utility model provides an automatic cleaning device, including a molten material chute, the molten material chute includes a plurality of unit chutes 1, and the plurality of unit chutes 1 are connected end to end to form the molten material chute; in this embodiment, the outer wall of the unit chute 1 is respectively provided with ears at both ends, and the adjacent unit chutes 1 are connected into one body through the ears, and the gap between the adjacent unit chutes 1 is filled by welding, and the part of the unit chute 1 in contact with the high-temperature molten material adopts precision castings, which can avoid the influence of the weld and the welding heat-affected zone, and improve the service life of the molten material chute; it should be noted that even if the welding area at the gap is penetrated by the high-temperature molten material, the high-temperature molten material easily forms a crystal shell to fill in the gap, and no leakage will occur;

[0041] A horizontal moving mechanism 3 is provided on one side of the molten material chute for moving along the length direction of the molten material chute, a lifting support seat 5 is provided at the moving end of the horizontal moving mechanism 3, a lifting mechanism 4 is provided on the lifting support seat 5, a tool holder 7 is provided at the lifting end of the lifting mechanism 4, a tool 9 mounting portion 8 is installed on the tool holder 7, a tool 9 mounting portion 8 is provided on the tool 9 mounting portion 8, and a tool group matching the trough shape of the molten material chute is provided on the tool group, and the tool group is used to remove the crystallized shell of the high-temperature molten material;

[0042] First, in the present invention, the tool group is arranged to match the groove shape of the melt chute, so as to effectively remove the high-temperature melt crystal shell in the melt chute, and a horizontal moving mechanism 3 moving along the length direction of the melt chute and a lifting mechanism 4 arranged on the horizontal moving mechanism 3 are also arranged, and a tool holder 7 and a tool group are arranged on the lifting mechanism 4, so that the device can control the movement of the tool group to replace manual cleaning, saving time and effort, thereby eliminating safety hazards;

[0043] In addition, the conventional integrally welded molten material chute is arranged in the form of a unit component (unit chute 1), and the unit chute 1 is spliced ​​into a molten material chute of a required length, which can better ensure the quality and facilitate installation and maintenance.

[0044] As a preferred embodiment, see Figure 5-Figure 8 The unit chute 1 includes a casting 13 for contacting with a high-temperature melt.

[0045] and a blocking member 14 disposed on the back of the casting 13 and matching the shape of the back of the casting 13, wherein the blocking member 14 and the back of the casting 13 form a cooling cavity;

[0046] Specifically, the blocking piece 14 is connected to the casting 13 as a whole by welding. It should be noted that the weld between the blocking piece 14 and the casting 13 will not contact the high-temperature molten material, so the high-temperature molten material will not affect the weld here, and the surface in contact with the high-temperature molten material is a part of the casting 13, and the overall strength and wear resistance are relatively high. Compared with traditional molten material chutes, it can avoid the influence of welds and welding heat-affected zones, thereby increasing the service life of the molten material chute.

[0047] The unit chute 1 is a curved piece with an arc-shaped cross section. Specifically, in this embodiment, the curved piece is a semicircular curved piece with a preset diameter. A cooling cavity is provided inside the curved piece (the method of providing the cooling cavity in the device is a prior art and is not shown in the figure). A water inlet 11 communicating with the cooling cavity is provided at one end of the curved piece plate edge, and a water outlet 12 communicating with the cooling cavity is provided at the other end.

[0048] The water inlets 11 and the water outlets 12 between the adjacent unit chutes 1 are connected via flange pipes 2;

[0049] Such a setting allows cooling water to pass through all the unit chutes 1 in the melt chute. Through the setting of the water inlet 11, the water outlet 12 and the cooling cavity, the device can divert cooling water into the unit chute 1, improve the cooling effect of the unit chute 1, avoid the reduction of metal strength at high temperature, improve the wear resistance of the melt chute, and thus extend the service life.

[0050] As a preferred embodiment, the knife seat 7 includes a heat-insulating mounting plate 71, a knife holder seat plate 72 is arranged on one side of the heat-insulating mounting plate 71, two heat-insulating mounting blocks 73 are arranged at intervals on the end surface of the knife holder seat plate 72, a rotating shaft mounting seat 74 is installed at intervals between the heat-insulating mounting blocks 73, a movable knife rod 75 is movably installed between the rotating shaft mounting seats 74, and a pressure plate 76 is installed at both upper and lower ends of the two rotating shaft mounting seats 74;

[0051] The upper and lower pressure plates 76 are used as the limit for the movable knife bar 75 to rotate between the rotating shaft mounting seat 74. At the same time, the installation position of the pressure plate 76 can also be used to adjust the installation deflection angle of the movable knife bar 75. After the pressure plate 76 at the upper end of the rotating shaft mounting seat 74 is removed, the movable knife bar 75 can be rotated upward to make the tool 9 mounting part 8 connected thereto stand upright, which is convenient for maintenance and prevents the tool 9 mounting part 8 from being at the upper end of the melt chute for a long time and causing overheating. Through the arrangement of structures such as the heat insulation mounting plate 71, the tool holder seat plate 72, and the heat insulation mounting block 73, the device can further facilitate the installation and adjustment of the tool 9 mounting part 8. The arrangement of the heat insulation structure in the knife seat 7 can ensure the normal operation of the knife seat 7 and improve the service life of the device.

[0052] As a preferred embodiment, the tool 9 mounting portion 8 includes a tool rod flange 81 adapted to the movable tool rod 75, a heat insulating bushing 82 is provided on one side of the tool rod flange 81, a flange adapter 83 is provided on one side of the heat insulating bushing 82, a heat insulating flange gasket 84 is provided on one side of the flange adapter 83, a mounting tool rod 85 having one end connected to the movable tool rod 75 and the other end passing through the heat insulating flange gasket 84 is installed in the flange adapter 83, and mounting holes adapted to the tool set are provided at intervals on the mounting tool rod 85;

[0053] In this embodiment, the mounting hole is a threaded hole, which is fixedly connected to each tool 9 in the tool set through a thread. Through the arrangement of structures such as the tool bar flange 81, the heat insulating bushing 82, and the flange adapter 83, the device can further facilitate the installation and adjustment of the tool set, and the arrangement of the heat insulating structure in the tool 9 mounting part 8 can ensure the normal operation of the tool 9 mounting part 8 and improve the service life of the device.

[0054] As a preferred embodiment, the tool group includes a plurality of tools 9, one end of the tool 9 is connected to the mounting hole in an adjustable length, and the other end is provided with a blade for clearing the high-temperature molten crystal shell in the molten chute; specifically, the tool 9 is connected to the mounting hole in an adjustable length through a threaded connection, and the blade ends of the plurality of tools 9 are adjusted to a length matching the groove shape of the unit chute 1, that is, each tool 9 is adjusted to have a different extended length so that its blade end can match the groove shape of the unit chute 1, thereby ensuring that the molten material in the molten chute is fully cleared, thereby improving the clearing effect.

[0055] As a preferred embodiment, the horizontal moving mechanism 3 includes a first rodless cylinder and a third slide rail arranged in parallel with the first rodless cylinder, a third slider is slidably arranged on the third slide rail, and the third slider and the slider on the first rodless cylinder constitute the moving end of the horizontal moving mechanism 3, and the lifting support seat 5 is arranged across the third slider and the slider on the first rodless cylinder;

[0056] The lifting mechanism 4 includes two second rodless cylinders, which are arranged vertically and in parallel on the lifting support seat 5, and the sliders of the two second rodless cylinders constitute the lifting end of the lifting mechanism 4. The knife seat 7 is arranged across the sliders of the two second rodless cylinders.

[0057] In this embodiment, the horizontal moving mechanism 3 and the lifting mechanism 4 both use rodless cylinders as driving power. Since the rodless cylinder does not have a traditional rigid piston rod, the structure is more compact and saves installation space. Due to its compact design, the rodless cylinder can save valuable installation space and is particularly suitable for occasions with limited space.

[0058] In some embodiments, the horizontal moving mechanism 3 may also be driven by a screw. Specifically, the horizontal moving mechanism 3 includes a first drive motor, a first screw rod drivingly connected to an output end of the first drive motor, and a first screw rod nut slidably sleeved on the first screw rod.

[0059] It also includes a horizontal slide rail arranged in parallel with the first screw and a first slider slidably arranged on the horizontal slide rail, the first slider is fixedly arranged on the first screw nut, and the lifting support seat 5 is arranged on the first slider; such an arrangement enables the lifting mechanism 4 to move along one side of the melt chute with the horizontal moving mechanism 3, and drive the tool group thereon to completely remove the high-temperature melt crystal shell in the melt chute;

[0060] A screw drive is used as the horizontal moving mechanism 3. Since the screw drive can convert rotational motion into linear motion, it can achieve smooth horizontal movement and facilitate structural layout. Although the initial friction force of the screw drive is relatively large, once it is running, the friction resistance is small, so the transmission efficiency is high; and its structure is simple, the manufacturing cost is low, and it is easy to maintain and adjust.

[0061] In some embodiments, the lifting mechanism 4 may also be driven by a screw. Specifically, the lifting mechanism 4 includes a second drive motor, a second screw rod drivingly connected to an output end of the second drive motor, and a second screw rod nut slidably sleeved on the second screw rod.

[0062] It also includes a vertical slide rail arranged parallel to the second screw rod and a second slider slidably arranged on the vertical slide rail, the second slider is provided with a lifting mounting plate 6, and the tool holder 7 is arranged on the lifting mounting plate 6; the setting of the lifting mechanism 4 is convenient for timely lifting the tool group to prepare for the next cycle of cleaning,

[0063] The screw drive is used as the horizontal movement mechanism. Since the screw drive can convert rotational motion into linear motion, it can achieve smooth horizontal movement. Although the initial friction of the screw drive is relatively large, once it is running, the friction resistance is small, so the transmission efficiency is high; and its structure is simple, the manufacturing cost is low, and it is easy to maintain and adjust;

[0064] In some embodiments, the horizontal moving mechanism 3 and the lifting mechanism 4 may also adopt a gear rack transmission structure.

[0065] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automatic cleaning device, characterized in that: It includes a molten material chute, wherein the molten material chute includes a plurality of unit chutes, and a plurality of the unit chutes are connected end to end and spliced ​​to form the molten material chute; A horizontal moving mechanism that moves along the length direction of the molten material chute is arranged on one side of the molten material chute, a lifting support seat is arranged at the moving end of the horizontal moving mechanism, a lifting mechanism is arranged on the lifting support seat, a tool seat is arranged at the lifting end of the lifting mechanism, a tool mounting part is installed on the tool seat, and a tool mounting part is provided on the tool group that matches the groove shape of the molten material chute.

2. An automatic cleaning device according to claim 1, characterized in that: The unit chute includes a casting for contacting with a high-temperature melt. and a plugging piece arranged on the back of the casting and matching the shape of the back of the casting, wherein the plugging piece and the back of the casting form a cooling cavity; The unit chute is a curved piece with an arc-shaped cross section, one end of the curved piece plate edge is provided with a water inlet connected to the cooling cavity, and the other end is provided with a water outlet connected to the cooling cavity; The water inlets and water outlets between the adjacent unit chutes are connected via flange pipes; Both ends of the outer wall of the unit chute are respectively provided with ears, and the adjacent unit chutes are connected into one body through the ears.

3. An automatic cleaning device according to claim 1 or 2, characterized in that: The tool holder includes a heat insulation mounting plate, a tool holder seat plate is arranged on one side of the heat insulation mounting plate, two heat insulation mounting blocks are arranged on the end surface of the tool holder seat plate at intervals, two rotating shaft mounting seats are arranged between the heat insulation mounting blocks at intervals, a movable tool rod is movably installed between the rotating shaft mounting seats, and pressure plates are installed at the upper and lower ends of the two rotating shaft mounting seats.

4. An automatic cleaning device according to claim 1 or 2, characterized in that: The tool mounting portion includes a tool rod flange adapted to the movable tool rod, a thermal insulation bushing is provided on one side of the tool rod flange, a flange adapter is provided on one side of the thermal insulation bushing, a thermal insulation flange gasket is provided on one side of the flange adapter, an installation tool rod is installed in the flange adapter, one end of which is connected to the movable tool rod and the other end of which passes through the thermal insulation flange gasket, and mounting holes adapted to the tool assembly are provided at intervals on the installation tool rod.

5. An automatic cleaning device according to claim 4, characterized in that: The tool set includes a plurality of tools, one end of which is connected to the mounting hole in an adjustable length, and the other end of which is provided with a blade for removing the high-temperature molten crystal shell in the molten material chute.

6. An automatic cleaning device according to claim 5, characterized in that: The cutter is connected to the mounting hole through a threaded connection to achieve a length-adjustable connection, and the blade ends of a plurality of cutters are adjusted to a length that matches the groove shape of the unit chute.

7. An automatic cleaning device according to claim 1 or 2, characterized in that: The horizontal moving mechanism includes a first rodless cylinder and a third slide rail arranged parallel to the first rodless cylinder. A third slider is slidably arranged on the third slide rail, and the third slider and the slider on the first rodless cylinder constitute the moving end of the horizontal moving mechanism. The lifting support seat is arranged across the third slider and the slider on the first rodless cylinder.

8. An automatic cleaning device according to claim 1 or 2, characterized in that: The lifting mechanism includes two second rodless cylinders, which are vertically arranged in parallel and at intervals on the lifting support seat. The sliders of the two second rodless cylinders constitute the lifting end of the lifting mechanism, and the tool holder is transversely arranged on the sliders of the two second rodless cylinders.

9. An automatic cleaning device according to claim 1 or 2, characterized in that: The horizontal movement mechanism comprises a first drive motor, a first screw rod drivingly connected to the output end of the first drive motor, and a first screw rod nut slidably sleeved on the first screw rod; It also includes a horizontal slide rail arranged parallel to the first screw rod and a first slider slidably arranged on the horizontal slide rail. The first slider is fixedly arranged on the first screw rod nut, and the lifting support seat is arranged on the first slider.

10. An automatic cleaning device according to claim 1 or 2, characterized in that: The lifting mechanism includes a second drive motor, a second screw rod drivingly connected to the output end of the second drive motor, and a second screw rod nut slidably sleeved on the second screw rod. It also includes a vertical slide rail arranged parallel to the second screw rod and a second slider slidably arranged on the vertical slide rail, the second slider is provided with a lifting mounting plate, and the knife seat is arranged on the lifting mounting plate.

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