A concrete cutting machine that can be operated in batches

Abstract

The utility model discloses a batch operation's concrete cutting machine, including base, the bottom of base is installed with several gyro wheel, and be provided with positioning mechanism on the base, the top fixed connection of base has the frame, the frame is L -shaped, and its top is provided with cutting mechanism, and the side of frame is provided with dust removal mechanism. The utility model can cut the concrete of large area according to grid block, and need not repeat multiple cutting operation, not only more time -saving and labor -saving, has improved cutting efficiency greatly, also makes the stress of concrete more uniform, effectively avoided the instability collapse of overall structure, good flexibility, can adjust cutting height and angle, effectively expanded its application range, can effectively recover and adsorb the dust that raises in the cutting process, to prevent dust flying everywhere.

Description

Technical Field

[0001] This utility model belongs to the field of cutting equipment technology, and in particular relates to a concrete cutting machine that can be operated in batches. Background Technology

[0002] Concrete cutting is a construction technique that uses specialized equipment (such as diamond saw blades, wire saws, drilling machines, etc.) to precisely and controllably separate or demolish concrete structures. The core function of concrete cutting is to separate or create openings in the concrete without damaging or with minimal impact on the remaining structure.

[0003] A search revealed a Chinese patent website that discloses an asphalt concrete cutting device with publication number CN218911067U. This concrete cutting device can be used for cutting concrete, but it has some defects and shortcomings that need to be improved: (1) Due to structural design reasons, existing concrete cutting equipment is difficult to perform batch cutting operations on concrete. When the area of ​​concrete is large, it is necessary to repeat the cutting operation multiple times, which is not only time-consuming and labor-intensive, but also inefficient. At the same time, uneven stress can lead to the overall structural instability and collapse of the concrete; (2) Existing concrete cutting equipment has poor flexibility. The angle of cutting components such as saw blades is often fixed and difficult to adjust, which makes it unsuitable for concrete cutting in various complex scenarios; (3) Existing concrete cutting equipment lacks effective dust removal measures, which makes the dust raised during concrete cutting easily spread everywhere, which not only affects the surrounding air environment, but also endangers the respiratory health of workers. Therefore, in view of the above problems, the concrete cutting machine that can be operated in batches provided by this utility model is of great significance. Utility Model Content

[0004] This invention provides a batch-operation concrete cutting machine. Multiple saw blades in the cutting mechanism effectively expand the machine's coverage area, allowing for the cutting of large areas of concrete into grid-like blocks without repeated cutting operations. This not only saves time and labor, significantly improving cutting efficiency, but also ensures more uniform stress on the concrete, effectively preventing structural instability and collapse. Driving the first electric telescopic rod moves the cutting mechanism up and down, adjusting the saw blade's cutting depth. Simultaneously, driving the first motor rotates the cutting mechanism, allowing for adjustment of the saw blade's cutting angle as needed, enabling multi-angle cutting and significantly expanding its applicability. A dust removal mechanism draws dust generated during cutting into a dust collection chamber. Once inside, the dust comes into contact with and is adsorbed onto the dust collection mesh, effectively removing dust and preventing it from scattering. In summary, this invention solves the problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a concrete cutting machine capable of batch operation, including a base, a number of rollers installed at the bottom of the base, a positioning mechanism provided on the base, a frame fixedly connected to the top of the base, the frame being L-shaped, a cutting mechanism provided at the top of the frame, and a dust removal mechanism provided on the side of the frame.

[0007] The positioning mechanism includes a first electric telescopic rod, which is installed on the top of the base. The bottom end of its output shaft passes through the base and is fixedly connected to a positioning plate, which is located below the base.

[0008] The cutting mechanism includes a second electric telescopic rod, which is installed on the top of the frame. A lifting plate is fixedly connected to the bottom of the output shaft of the second electric telescopic rod. A first motor is installed at the bottom of the lifting plate. A cutting frame is fixedly connected to the bottom of the output shaft of the first motor. The cutting frame is L-shaped and a second motor is installed on its side wall. A rotating shaft is fixedly connected to the output shaft of the second motor through a coupling. Several sets of mounting seats are fixedly connected to the shaft body of the rotating shaft, and several saw blades are installed on the rotating shaft.

[0009] The dust removal mechanism includes an exhaust fan and a dust collection chamber. The exhaust fan is installed on the side wall of the frame away from the cutting mechanism, and an exhaust pipe is installed on the exhaust fan. The dust collection chamber is installed on the side wall of the frame close to the cutting mechanism, and several dust collection pipes are installed at its bottom. The front end of the dust collection chamber has an insertion port, into which a dust collection plate is inserted. A handle is fixedly connected to the front end of the dust collection plate, and a dust collection net is installed on the dust collection plate. The other end of the exhaust pipe penetrates the side wall of the frame and communicates with the inner cavity of the dust collection chamber.

[0010] Furthermore, the bottom surface of the positioning plate is provided with several anti-slip pads, which are long strips and are distributed linearly at equal intervals along the length of the positioning plate, and the surface of the anti-slip pads is provided with herringbone anti-slip patterns.

[0011] Furthermore, a pair of guide holes are provided on the top of the frame, and the guide holes are symmetrically distributed on both sides of the second electric telescopic rod. A pair of guide rods are fixedly connected to the top of the lifting plate. The diameter of the guide rods is equal to the diameter of the guide holes, and each guide rod passes through the corresponding guide hole.

[0012] Furthermore, each group of mounting seats is linearly distributed at equal intervals along the length of the rotating shaft. Each group has three mounting seats, and each group of mounting seats is also distributed in a circular pattern at equal intervals along the circumference of the rotating shaft. Each mounting seat has a threaded hole, and the saw blade has a through hole at its center. The diameter of the through hole is equal to the diameter of the rotating shaft. Three disassembly ports are provided on the inner side of the through hole. Both the disassembly ports and the mounting seats are rectangular, with equal lengths and widths. The center of each disassembly port corresponds one-to-one with the center of each mounting seat. The surface of the saw blade has three mounting holes, the diameter of which is equal to the diameter of the threaded hole. The center of each mounting hole corresponds one-to-one with the center of each threaded hole.

[0013] Furthermore, the suction pipe is L-shaped, with its bottom end extending to the bottom of the frame, and each suction pipe is equidistantly linearly distributed along the length of the bottom surface of the suction chamber and connected to the inner cavity of the suction chamber.

[0014] Furthermore, the insertion port is rectangular, and its length is equal to the width of the inner wall of the dust collection chamber. The width of the insertion port is less than the height of the connection between the end of the exhaust pipe and the inner cavity of the dust collection chamber. The dust collection plate is rectangular, and its width and thickness are equal to the length and width of the insertion port, respectively. The length of the dust collection plate is equal to the length of the inner wall of the dust collection chamber.

[0015] The present invention has the following advantages over the prior art:

[0016] (1) When using the concrete cutting machine that can be operated in batches in this utility model, the multiple saw blades in the cutting mechanism can effectively expand the coverage of the cutting machine so that large areas of concrete can be cut into grid blocks without repeating multiple cutting operations. This not only saves time and effort and greatly improves cutting efficiency, but also makes the concrete more uniformly stressed, effectively preventing the overall structure from becoming unstable and collapsing.

[0017] (2) When using the concrete cutting machine that can be operated in batches in this utility model, the cutting mechanism can be moved up and down by driving the first electric telescopic rod so as to adjust the cutting depth of the saw blade. At the same time, the cutting mechanism can be rotated by driving the first motor so as to adjust the cutting angle of the saw blade as needed, thereby realizing multi-angle cutting of the cutting machine and effectively expanding its application range.

[0018] (3) When using the concrete cutting machine that can be operated in batches in this utility model, the dust raised during the cutting process can be sucked into the dust collection chamber through the dust removal mechanism. After the dust enters the dust collection chamber, it will come into contact with the dust collection net on the surface of the dust collection plate and be adsorbed on the surface of the dust collection net, thereby achieving the effect of dust removal and preventing the dust from flying around.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a batch-operation concrete cutting machine according to the present invention;

[0022] Figure 2 This is a schematic diagram of the frame structure in this utility model;

[0023] Figure 3 This is a schematic diagram of the positioning mechanism in this utility model;

[0024] Figure 4 This is a schematic diagram of the cutting mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the rotating shaft in this utility model;

[0026] Figure 6 This is a schematic diagram of the saw blade structure in this utility model;

[0027] Figure 7 This is a schematic diagram of the dust removal mechanism in this utility model;

[0028] Figure 8 This is a schematic diagram of the dust collection chamber in this utility model;

[0029] Figure 9 This is a schematic diagram of the dust collection plate in this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Base; 2. Rollers; 3. Frame; 4. First electric telescopic rod; 5. Positioning plate; 6. Second electric telescopic rod; 7. Lifting plate; 8. First motor; 9. Cutting frame; 10. Second motor; 11. Shaft; 12. Mounting base; 13. Saw blade; 14. Exhaust fan; 15. Dust collection chamber; 16. Exhaust pipe; 17. Dust collection pipe; 18. Insertion port; 19. Dust collection plate; 20. Handle; 21. Dust collection net; 22. Anti-slip mat; 23. Guide hole; 24. Guide rod; 25. Threaded hole; 26. Through hole; 27. Disassembly port; 28. Mounting hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Please see Figure 1-9 As shown, a batch-operation concrete cutting machine of this utility model includes a base 1, a plurality of rollers 2 are installed at the bottom of the base 1, and a positioning mechanism is provided on the base 1. A frame 3 is fixedly connected to the top of the base 1. The frame 3 is L-shaped, and a cutting mechanism is provided on its top. A dust removal mechanism is provided on the side of the frame 3.

[0035] The positioning mechanism includes a first electric telescopic rod 4, which is installed on the top of the base 1. The bottom end of its output shaft passes through the base 1 and is fixedly connected to a positioning plate 5. The positioning plate 5 is located below the base 1. The position of the cutting machine can be moved by the rolling of the rollers 2 with the ground. When the cutting machine moves to the designated position of the concrete, the first electric telescopic rod 4 can be driven to move the positioning plate 5 downward until the positioning plate 5 contacts the ground and lifts each roller 2 slightly off the ground. At this time, the cutting machine can be positioned by the positioning plate 5 to prevent it from shifting during use.

[0036] The cutting mechanism includes a second electric telescopic rod 6, which is mounted on the top of the frame 3. A lifting plate 7 is fixedly connected to the bottom of its output shaft. A first motor 8 is mounted on the bottom of the lifting plate 7. A cutting frame 9 is fixedly connected to the bottom of the output shaft of the first motor 8. The cutting frame 9 is L-shaped, and a second motor 10 is mounted on its side wall. The output shaft of the second motor 10 is fixedly connected to a rotating shaft 11 via a coupling. Several sets of mounting seats 12 are fixedly connected to the shaft of the rotating shaft 11, and several saw blades 13 are mounted on the rotating shaft 11. Driving the second motor 10 can rotate the rotating shaft 11 along with the multiple saw blades 13. Driving the second electric telescopic rod 6 can move the lifting plate 7 and the entire cutting mechanism downwards until the saw blades are aligned with the shaft. When the saw blade 13 contacts the concrete and presses against the concrete surface, the use of multiple saw blades 13 can effectively expand the coverage of the cutting mechanism, so that large areas of concrete can be cut into grid blocks without repeating multiple cutting operations. This not only saves time and effort and greatly improves cutting efficiency, but also makes the concrete more uniformly stressed, effectively preventing the overall structure from becoming unstable and collapsing. During cutting, the cutting mechanism can be moved up and down by driving the first electric telescopic rod 4 to adjust the cutting depth of the saw blade 13. At the same time, the cutting mechanism can be rotated by driving the first motor 8 to adjust the cutting angle of the saw blade 13 as needed, thereby realizing multi-angle cutting of the cutting machine and effectively expanding its application range.

[0037] The dust removal mechanism includes an exhaust fan 14 and a dust collection chamber 15. The exhaust fan 14 is installed on the side wall of the frame 3 away from the cutting mechanism, and an exhaust pipe 16 is installed on the exhaust fan 14. The dust collection chamber 15 is installed on the side wall of the frame 3 near the cutting mechanism, and several dust collection pipes 17 are installed at its bottom. The front end of the dust collection chamber 15 has an insertion port 18, into which a dust collection plate 19 is inserted. A handle 20 is fixedly connected to the front end of the dust collection plate 19, and a dust collection net 21 is installed on the dust collection plate 19. The other end of the exhaust pipe 16... The pipe penetrates the side wall of the frame 3 and is connected to the inner cavity of the dust collection chamber 15. When cutting concrete, the exhaust fan 14 can be driven to draw air into the dust collection chamber 15 through the exhaust pipe 16. At this time, a negative pressure can be formed inside the dust collection chamber 15, and the dust raised during the cutting process can be sucked into the dust collection chamber 15 through each dust collection pipe 17. After the dust enters the dust collection chamber 15, it will come into contact with the dust collection net 21 on the surface of the dust collection plate 19 and be adsorbed on the surface of the dust collection net 21, thereby achieving the effect of dust removal and preventing dust from flying around.

[0038] The bottom surface of the positioning plate 5 is provided with several anti-slip pads 22. The anti-slip pads 22 are long strips and are distributed linearly at equal intervals along the length of the positioning plate 5. The surface of the anti-slip pads 22 is provided with herringbone anti-slip texture. The anti-slip pads 22 can be made of elastic materials such as rubber and are fixed by adhesives. When the positioning plate 5 is in contact with the ground, the anti-slip texture on the surface of the anti-slip pads 22 can increase the friction between the positioning plate 5 and the ground to play an anti-slip role, thereby further enhancing the positioning effect of the positioning mechanism and preventing the cutting machine from slipping during use.

[0039] The top of the frame 3 is provided with a pair of guide holes 23, which are symmetrically distributed on both sides of the second electric telescopic rod 6. The top of the lifting plate 7 is fixedly connected with a pair of guide rods 24, the diameter of the guide rods 24 is equal to the diameter of the guide holes 23, and each guide rod 24 passes through the corresponding guide hole 23. When the height of the cutting mechanism is adjusted, the lifting plate 7 can drive each guide rod 24 to move vertically along the guide hole 23. At this time, the mutual cooperation between the guide rods 24 and the guide holes 23 can play a guiding and limiting role to prevent the cutting mechanism from shaking and tilting when moving up and down.

[0040] Each set of mounting seats 12 is linearly distributed at equal intervals along the length of the rotating shaft 11. Each set of mounting seats 12 consists of three seats, and they are all arranged in a circular pattern at equal intervals along the circumference of the rotating shaft 11. Each mounting seat 12 has a threaded hole 25. A through hole 26 is located at the center of the saw blade 13, with the diameter of the through hole 26 corresponding to the diameter of the rotating shaft 11. Three disassembly ports 27 are located on the inner side of the through hole 26. Both the disassembly ports 27 and the mounting seats 12 are rectangular, with equal length and width. The center of each disassembly port 27 corresponds one-to-one with the center of each mounting seat 12. Three mounting holes 28 are located on the surface of the saw blade 13. The diameter of each mounting hole 28 corresponds to the diameter of the threaded hole 25. The diameters of the holes 5 are equal, and the center of each mounting hole 28 corresponds one-to-one with the center of each threaded hole 25. When the mounting holes 28 on the saw blade 13 are aligned with the threaded holes 25 on each set of mounting seats 12, bolts and other fasteners can be inserted into the mounting holes 28 and mounting seats 12 respectively. Then, the matching nuts are threaded onto the bolts so that each saw blade 13 can be fixedly installed on each set of mounting seats 12 by means of threaded connection. When the saw blade 13 is worn due to long-term use, the bolts and nuts can be unscrewed first, and then the saw blade 13 can be rotated until each disassembly port 27 is aligned with each set of mounting seats 12. Then, the saw blades 13 can be removed from the rotating shaft 11 one by one for replacement.

[0041] The suction pipe 17 is L-shaped, with its bottom end extending to the bottom of the frame 3. Each suction pipe 17 is equidistantly linearly distributed along the length of the bottom surface of the suction chamber 15 and connected to the inner cavity of the suction chamber 15. The suction range of the dust removal mechanism can be effectively expanded through multiple suction pipes 17 to ensure that dust can be fully sucked into the suction chamber 15, thereby greatly improving the efficiency and effect of dust removal.

[0042] The insertion port 18 is rectangular, and its length is equal to the width of the inner wall of the dust collection chamber 15. The width of the insertion port 18 is less than the height of the connection between the end of the exhaust pipe 16 and the inner cavity of the dust collection chamber 15. The dust collection plate 19 is rectangular, and its width and thickness are equal to the length and width of the insertion port 18, respectively. The length of the dust collection plate 19 is equal to the length of the inner wall of the dust collection chamber 15. After the dust collection plate 19 is inserted into the dust collection chamber 15 through the insertion port 18, it can be attached to the insertion port 18 and the inner wall of the dust collection chamber 15 respectively, so that the dust collection plate 19 can be fixed by plugging it in. After long-term use, the dust collection plate 19 can be pulled out from the inside of the dust collection chamber 15 by pulling the handle 20, so that the dust collection net 21 can be cleaned regularly.

[0043] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0044] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0045] The working principle of this utility model is as follows:

[0046] In use, this invention allows the cutting machine to be moved by the rolling motion of the rollers 2 against the ground. Once the cutting machine reaches the designated location of the concrete, the first electric telescopic rod 4 is driven to move the positioning plate 5 downwards until it contacts the ground and slightly lifts each roller 2 off the ground. At this point, the positioning plate 5 positions the cutting machine to prevent displacement during use. Then, the second motor 10 is driven to rotate the shaft 11 along with multiple saw blades 13. Next, the second electric telescopic rod 6 is driven to move the lifting plate 7 and the entire cutting mechanism downwards until the saw blades 13 contact the concrete and press against the concrete surface. The multiple saw blades 13 effectively expand the coverage area of ​​the cutting mechanism, allowing large areas of concrete to be cut into grid sections without repeated cutting operations. This not only saves time and effort but also significantly improves cutting efficiency. This improves cutting efficiency and makes the concrete more evenly stressed, effectively preventing the overall structure from becoming unstable and collapsing. During cutting, the first electric telescopic rod 4 can be driven to move the cutting mechanism up and down to adjust the cutting depth of the saw blade 13. At the same time, the first motor 8 can be driven to rotate the cutting mechanism to adjust the cutting angle of the saw blade 13 as needed, thus enabling multi-angle cutting and effectively expanding its application range. When cutting concrete, the exhaust fan 14 can be driven to exhaust air into the dust collection chamber 15 through the exhaust pipe 16. At this time, a negative pressure can be formed inside the dust collection chamber 15, and the dust raised during the cutting process can be sucked into the dust collection chamber 15 through the various dust collection pipes 17. After the dust enters the dust collection chamber 15, it will come into contact with the dust collection net 21 on the surface of the dust collection plate 19 and be adsorbed on the surface of the dust collection net 21, thereby achieving the effect of dust removal and preventing dust from flying around.

[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A concrete cutting machine capable of batch operation, characterized in that, The device includes a base, with several rollers installed on the bottom of the base and a positioning mechanism on the base. A frame is fixedly connected to the top of the base. The frame is L-shaped and has a cutting mechanism on its top and a dust removal mechanism on its side. The positioning mechanism includes a first electric telescopic rod, which is installed on the top of the base. The bottom end of its output shaft passes through the base and is fixedly connected to a positioning plate, which is located below the base. The cutting mechanism includes a second electric telescopic rod, which is installed on the top of the frame. A lifting plate is fixedly connected to the bottom of the output shaft of the second electric telescopic rod. A first motor is installed at the bottom of the lifting plate. A cutting frame is fixedly connected to the bottom of the output shaft of the first motor. The cutting frame is L-shaped and a second motor is installed on its side wall. A rotating shaft is fixedly connected to the output shaft of the second motor through a coupling. Several sets of mounting seats are fixedly connected to the shaft body of the rotating shaft, and several saw blades are installed on the rotating shaft. The dust removal mechanism includes an exhaust fan and a dust collection chamber. The exhaust fan is installed on the side wall of the frame away from the cutting mechanism, and an exhaust pipe is installed on the exhaust fan. The dust collection chamber is installed on the side wall of the frame close to the cutting mechanism, and several dust collection pipes are installed at its bottom. The front end of the dust collection chamber has an insertion port, into which a dust collection plate is inserted. A handle is fixedly connected to the front end of the dust collection plate, and a dust collection net is installed on the dust collection plate. The other end of the exhaust pipe penetrates the side wall of the frame and communicates with the inner cavity of the dust collection chamber.

2. The batch-operation concrete cutting machine according to claim 1, characterized in that, The bottom surface of the positioning plate is provided with several anti-slip pads. The anti-slip pads are long strips and are distributed linearly at equal intervals along the length of the positioning plate. The surface of the anti-slip pads is provided with herringbone anti-slip patterns.

3. A batch-operation concrete cutting machine according to claim 1, characterized in that, The top of the frame is provided with a pair of guide holes, which are symmetrically distributed on both sides of the second electric telescopic rod. The top of the lifting plate is fixedly connected with a pair of guide rods, the diameter of which is equal to the diameter of the guide hole, and each guide rod passes through the corresponding guide hole.

4. A batch-operation concrete cutting machine according to claim 1, characterized in that, Each group of mounting seats is linearly distributed at equal intervals along the length of the rotating shaft. Each group has three mounting seats, and each group of mounting seats is also distributed in a ring at equal intervals along the circumference of the rotating shaft. Each mounting seat has a threaded hole. The saw blade has a through hole at its center, and the diameter of the through hole is equal to the diameter of the rotating shaft. Three disassembly ports are provided on the inner side of the through hole. Both the disassembly ports and the mounting seats are rectangular, and their lengths and widths are equal. The center of each disassembly port corresponds to the center of each mounting seat. The surface of the saw blade has three mounting holes, and the diameter of each mounting hole is equal to the diameter of the threaded hole. The center of each mounting hole corresponds to the center of each threaded hole.

5. A batch-operation concrete cutting machine according to claim 1, characterized in that, The suction pipe is L-shaped, with its bottom end extending to the bottom of the frame. Each suction pipe is equidistantly distributed linearly along the length of the bottom surface of the suction chamber and is connected to the inner cavity of the suction chamber.

6. A batch-operation concrete cutting machine according to claim 1, characterized in that, The insertion port is rectangular, and its length is equal to the width of the inner wall of the dust collection chamber. The width of the insertion port is less than the height of the connection between the end of the exhaust pipe and the inner cavity of the dust collection chamber. The dust collection plate is rectangular, and its width and thickness are equal to the length and width of the insertion port, respectively. The length of the dust collection plate is equal to the length of the inner wall of the dust collection chamber.

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