Adjustable grinding device for house decoration

Abstract

The invention belongs to the technical field of house decoration, and discloses an adjustable polishing device for house decoration, which comprises a device shell, a wall surface polishing mechanism is fixed at the top end of the device shell, a guide mechanism is mounted outside the device shell, and a second servo motor is fixed at the top end in the device shell. According to the device, through cooperation of a dust collecting groove, a first air cylinder, a baffle and other structures, the device can directionally collect grinding dust, environmental pollution is reduced, the first air cylinder pushes the baffle to ascend and descend, the dust collecting mechanism is arranged, and the dust collecting mechanism is arranged in the device shell. The guide box is inserted into the dust collection groove, the reset spring pushes the limiting block and the clamping block to clamp the guide box, the dust collection distance is prolonged, the pressing disc is pressed to drive the pressing rod and the abutting rod to extrude the limiting block, the guide box can be rapidly disassembled, the four sets of dust collection grooves in the annular array cover the peripheral range of the device, and the dust removal efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of house decoration, and particularly relates to an adjustable polishing device for house decoration. BACKGROUND

[0002] In current house decoration, wall surface and ceiling polishing operations mainly rely on handheld polishers or manual sandpaper polishing. Although the handheld polisher has high efficiency, it has the problems of inconvenient operation and difficulty in accurately controlling polishing force. Manual sandpaper polishing has high labor intensity and low efficiency. With the improvement of the requirements of the decoration industry on construction quality and efficiency, a new polishing device that can guarantee polishing quality and reduce labor intensity of workers is needed.

[0003] Publication No. CN212240342U discloses a wall polishing device for house decoration, which comprises a walking trolley, a rodless cylinder, an electric telescopic rod and a polisher. The bottom of the walking trolley is provided with walking wheels. The rodless cylinder is horizontally arranged on the top of the walking trolley. The bottom of the electric telescopic rod is fixedly connected with a sliding block, and the electric telescopic rod is slidably sleeved on the sliding rail of the rodless cylinder through the sliding block at the bottom. The top of the electric telescopic rod is hingedly connected with a supporting rod. The end of the supporting rod is provided with a polisher for polishing the wall. The polisher is arranged on the walking trolley and can be quickly moved. The polisher can realize mechanized operation of wall polishing under the joint action of the rodless cylinder and the electric telescopic rod, which not only saves labor, but also improves work efficiency and ensures the polishing effect of the wall.

[0004] The device can realize mechanized operation of wall polishing through the telescopic rod when in use. However, when the device polishes the wall, dust generated by polishing falls into the corners. The accumulated dust in the room will affect the movement of the device after a long time of polishing. Therefore, the present application provides an adjustable polishing device for house decoration, which can process the dust and impurities generated by polishing to ensure the cleanliness of the working environment. SUMMARY

[0005] To solve the problems in the background art, the present application provides an adjustable polishing device for house decoration.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an adjustable polishing device for house decoration, comprising a device shell, a wall polishing mechanism fixed to the top end of the device shell, a traveling wheel fixed to the bottom end of the device shell, a guide mechanism installed on the outside of the device shell, a second servo motor fixed to the top end inside the device shell, a fan blade fixed to the rotating end of the second servo motor, a mounting bracket fixed to the inside of the device shell, and a dust collecting mechanism arranged at the bottom end inside the device shell. The wall polishing mechanism comprises a support frame, a first servo motor and a screw rod, the support frame is fixed at the top end of the device shell, the top end of the support frame is fixed with the first servo motor, the rotating end of the first servo motor is fixed with the screw rod, and the outer wall of the screw rod is threadedly connected with a support plate. The guide mechanism comprises a dust collection tank, a first air cylinder and a baffle, the dust collection tank is fixed outside the device shell, the top end of the dust collection tank is fixed with the first air cylinder, and the top end of the first air cylinder is fixed with the baffle.

[0007] Preferably, the outer part of the support plate is fixed with a mechanical arm, the outer part of the mechanical arm is mounted with a polishing disc, and the inner wall of the support plate is attached to the outer wall of the support frame.

[0008] Preferably, the dust collection tank is provided with a guide box outside, a limiting block is slidably connected inside the dust collection tank, a reset spring is fixed outside the limiting block, a clamping block is fixed outside the limiting block, a guide groove is formed inside the limiting block, a resisting rod is arranged inside the guide groove, a pressing rod is fixed at the top end of the resisting rod, and a pressure disc is fixed at the top end of the pressing rod.

[0009] Preferably, the dust collection tank is provided with four groups, which are arranged in a ring array about the central axis of the device shell, the first air cylinder is provided with two groups, which are symmetrically distributed about the central axis of the dust collection tank, and the outer wall of the baffle is attached to the inner wall of the dust collection tank.

[0010] Preferably, the input end of the guide box faces downward, the outer wall of the limiting block is attached to the inner wall of the dust collection tank, the reset spring is provided with two groups, which are symmetrically distributed about the central axis of the limiting block, and the reset spring is used to press the limiting block and make it keep a moving trend to the left.

[0011] Preferably, the clamping block is provided with two groups, which are symmetrically distributed about the central axis of the limiting block, a slot is formed inside the guide box, one end of the clamping block is provided with a curved surface, and one end of the guide box is provided with a curved surface.

[0012] Preferably, the limiting block is provided with two groups, which are symmetrically distributed about the central axis of the dust collection tank, the outer wall of the pressing rod is attached to the inner wall of the dust collection tank, and the pressing rod and the pressure disc are provided with two groups which are symmetrically distributed about the central axis of the dust collection tank.

[0013] Preferably, the dust collecting mechanism comprises a second cylinder, a plug rod and a dust collecting box, the second cylinder is fixed at the bottom end of the mounting frame, the bottom end of the second cylinder is fixed with the plug rod, the bottom end of the inside of the device shell is provided with the dust collecting box, the bottom end of the inside of the dust collecting box is fixed with a connecting box, the bottom end of the inside of the connecting box is fixed with a limiting piece, the inside of the connecting box is threadedly connected with a bolt, the bottom end of the inside of the dust collecting box is fixed with a top rod, the top end of the top rod is abutted with a filter screen, the bottom end of the filter screen is provided with a positioning groove, the dust generated by polishing is first passed through the filter screen after being guided and sucked into the device shell, the filter screen can directly intercept dust particles, avoiding the spread of dust back to the working environment, the intercepted dust will fall into the dust collecting box under the action of gravity, realizing the centralized storage of dust, reducing the pollution to the wall surface, the ground and the operator, and cooperating with the negative pressure airflow generated by the fan blade driven by the second servo motor in the device to tightly receive the dust filtered by the filter screen, avoiding the scattering of dust in the device under the action of airflow, and improving the dust collection efficiency.

[0014] Preferably, the outer wall of the dust collecting box is attached to the inner wall of the device shell, the top end of the limiting piece is provided with an inclined surface, and the bottom end of the bolt is provided with an inclined surface.

[0015] Preferably, the top rod is provided with four groups, the top rods are arranged at equal intervals about the central axis of the dust collecting box, the positioning grooves are provided with four groups, the positioning grooves are arranged at equal intervals about the central axis of the filter screen, the diameter of the positioning groove is equal to the diameter of the top rod, and the inner diameter of the bolt is equal to the outer diameter of the plug rod.

[0016] Compared with the prior art, the present application has the following advantages: The cooperation of the dust collecting groove, the first cylinder, the baffle and other structures enables the device to collect polished dust in a directional manner and reduce environmental pollution, the first cylinder drives the baffle to lift and lower, the air inlet channel of the dust collecting groove in the corresponding direction can be selectively opened, the guide box is inserted into the dust collecting groove, the limiting block and the clamping block are pushed by the return spring to clamp the guide box, the dust collection distance is extended, the limiting block is extruded by the pressing rod and the abutting rod when the pressure plate is pressed, the guide box can be quickly disassembled, the four groups of annular arrayed dust collecting grooves cover the periphery of the device, and the dust removal efficiency is improved.

[0017] The cooperation of the second cylinder, the plug rod, the dust collecting box and other structures enables the device to efficiently collect and process polished dust, the dust collecting box is placed below the device shell, the filter screen is positioned and installed through the positioning groove and the top rod, the plug rod is inserted into the bolt and the limiting piece driven by the second cylinder, the limiting piece is extruded by the rotating bolt to tightly hold the plug rod, the fixing of the dust collecting box is completed, the filter screen intercepts dust and falls into the dust collecting box, the filtered air can cool the high-heat components in the device, and the service life of the elements is prolonged.

[0018] The application cooperates the structures of the support frame, the first servo motor and the screw rod, so that the device can realize flexible adjustment of polishing height and angle, adapt to different wall polishing requirements, the first servo motor drives the screw rod to rotate, drives the threaded support plate to slide along the support frame, adjusts the height of the mechanical arm and the polishing disc, the mechanical arm drives the polishing disc to adjust the angle and adhere to the wall surface through the rotary joints driven by multiple motors, meets the polishing work of walls of different heights and different positions, and improves polishing flexibility and accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic diagram of the application; Figure 2 It is a whole right view structure schematic diagram of the application; Figure 3 It is a Figure 2 It is a local section enlarged structure schematic diagram of A in the application; Figure 4 It is a device shell internal structure schematic diagram of the application; Figure 5 It is a device shell internal section structure schematic diagram of the application; Figure 6 It is a guide mechanism structure schematic diagram of the application; Figure 7 It is a Figure 6 It is a local section enlarged structure schematic diagram of B in the application; Figure 8 It is an explosion structure schematic diagram of the dust collecting mechanism of the application; Figure 9 It is a guarantee bottom view structure schematic diagram of the dust collecting mechanism of the application; Figure 10 It is a partial explosion structure schematic diagram of the dust collecting mechanism of the application; Figure 11 It is a partial explosion bottom view structure schematic diagram of the dust collecting mechanism of the application.

[0020] In the figure: 1, device shell; 2, wall polishing mechanism; 201, support frame; 202, first servo motor; 203, screw rod; 204, support plate; 205, mechanical arm; 206, polishing disc; 3, traveling wheel; 4, guide mechanism; 401, dust collecting groove; 402, first air cylinder; 403, baffle; 404, guide box; 405, limiting block; 406, reset spring; 407, clamping block; 408, guide groove; 409, abutting rod; 410, pressing rod; 411, pressure plate; 5, second servo motor; 6, fan blade; 7, mounting frame; 8, dust collecting mechanism; 801, second air cylinder; 802, insertion rod; 803, dust collecting box; 804, connecting box; 805, limiting piece; 806, bolt; 807, jacking rod; 808, filter screen; 809, positioning groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0022] As shown in Figures 1 to 11 The present application provides an adjustable polishing device for house decoration, which comprises a device shell 1, a wall polishing mechanism 2 is fixed at the top end of the device shell 1, a traveling wheel 3 is fixed at the bottom end of the device shell 1, a guide mechanism 4 is installed outside the device shell 1, a second servo motor 5 is fixed at the top end inside the device shell 1, a fan blade 6 is fixed at the rotating end of the second servo motor 5, a mounting rack 7 is fixed inside the device shell 1, and a dust collecting mechanism 8 is arranged at the bottom end inside the device shell 1.

[0023] As shown in Figures 1 to 3 The wall polishing mechanism 2 comprises a support frame 201, a first servo motor 202 and a screw rod 203, the support frame 201 is fixed at the top end of the device shell 1, the first servo motor 202 is fixed at the top end of the support frame 201, the screw rod 203 is fixed at the rotating end of the first servo motor 202, the support plate 204 is threadedly connected to the outer wall of the screw rod 203, the mechanical arm 205 is fixed outside the support plate 204, the polishing disc 206 is installed outside the mechanical arm 205, and the inner wall of the support plate 204 is attached to the outer wall of the support frame 201.

[0024] By starting the first servo motor 202 to drive the screw rod 203 to rotate, the support plate 204 can be driven to move up and down through the threads of the screw rod 203, thereby changing the height of the mechanical arm 205 fixed on the support plate 204. The mechanical arm 205 has multiple rotary joints and is driven to rotate by a motor. The polishing disc 206 can be made to approach the wall surface to be polished through the multiple rotary joints, and the drive motor of the polishing disc 206 is started to drive the polishing disc 206 to rotate after the polishing disc 206 is attached to the wall surface, so as to polish the wall surface.

[0025] As shown in Figures 1 to 7As shown, the guide mechanism 4 includes a dust collection trough 401, a first cylinder 402, and a baffle 403. The dust collection trough 401 is fixed to the outside of the device housing 1. The first cylinder 402 is fixed to the top of the dust collection trough 401, and the baffle 403 is fixed to the top of the first cylinder 402. There are four sets of dust collection troughs 401, which are arranged in a circular array about the central axis of the device housing 1. There are two sets of first cylinders 402, which are symmetrically distributed about the central axis of the dust collection trough 401. The outer wall of the baffle 403 is attached to the inner wall of the dust collection trough 401.

[0026] like Figures 1 to 7 As shown, a guide box 404 is provided on the outside of the dust collection tank 401, and a limit block 405 is slidably connected inside the dust collection tank 401. A return spring 406 is fixed on the outside of the limit block 405. The input end of the guide box 404 faces downward, and the outer wall of the limit block 405 is in contact with the inner wall of the dust collection tank 401. Two sets of return springs 406 are provided, and the return springs 406 are symmetrically distributed about the central axis of the limit block 405. The return springs 406 are used to press the limit block 405 and keep it moving to the left. Two sets of locking blocks 407 are fixed on the outside of the limit block 405, and the locking blocks 407 are about the central axis of the limit block 405. The guide box 404 is symmetrically distributed with slots inside. One end of the locking block 407 has an arc surface. The guide box 404 has an arc surface at one end. The limiting block 405 has a guide groove 408 inside. The guide groove 408 has a contact rod 409 inside. The top of the contact rod 409 is fixed with a pressure rod 410. The top of the pressure rod 410 is fixed with a pressure plate 411. There are two sets of limiting blocks 405. The limiting blocks 405 are symmetrically distributed about the central axis of the dust collection tank 401. The outer wall of the pressure rod 410 fits against the inner wall of the dust collection tank 401. The pressure rod 410 and the pressure plate 411 are symmetrically distributed about the central axis of the dust collection tank 401.

[0027] Adopting the above scheme: by starting the first cylinder 402 to drive the baffle 403 to lift, and then open the air inlet channel of the group of dust collecting grooves 401, so that the device can operate dust collection in this direction, and by aligning the guide box 404 with the group of dust collecting grooves 401, the outer wall of the guide box 404 is in contact with the clamping block 407 after extruding the clamping block 407, the clamping block 407 and the limiting block 405 are inwards retracted, and after the guide box 404 is inserted as a whole, the limiting block 405 and the clamping block 407 are reset and inserted into the insertion slot on the inner wall of the guide box 404 by the restoring force of the reset spring 406, and then the guide box 404 is limited and fixed by a plurality of clamping blocks 407, so that the guide box 404 can extend the dust collection distance of the device, when the device needs to transfer the overall position after completing the work, press the pressure plate 411 to make the pressure rod 410 and the abutting rod 409 as a whole move downwards through the guide of the guide slot 408 and extrude the limiting block 405, so that the limiting block 405 is inwards retracted, and then the guide box 404 is removed.

[0028] As shown in Figures 1 to 11 , the dust collecting mechanism 8 includes a second cylinder 801, a plug rod 802 and a dust collecting box 803, the second cylinder 801 is fixed at the bottom end of the mounting frame 7, the bottom end of the second cylinder 801 is fixed with the plug rod 802, the bottom end inside the device shell 1 is provided with the dust collecting box 803, the bottom end inside the dust collecting box 803 is fixed with the connecting box 804, the bottom end inside the connecting box 804 is fixed with the limiting piece 805, the inside of the connecting box 804 is threadedly connected with the bolt 806, the outer wall of the dust collecting box 803 is attached to the inner wall of the device shell 1, the top end of the limiting piece 805 is provided with an inclined surface, and the bottom end of the bolt 806 is provided with an inclined surface.

[0029] As shown in Figures 1 to 11 , the bottom end inside the dust collecting box 803 is fixed with a top rod 807, the top end of the top rod 807 is abuttingly connected with a filter screen 808, the bottom end of the filter screen 808 is provided with a positioning slot 809, the top rod 807 is provided with four groups, the top rod 807 is equidistantly arranged about the central axis of the dust collecting box 803, the positioning slot 809 is provided with four groups, the positioning slot 809 is equidistantly arranged about the central axis of the filter screen 808, the diameter of the positioning slot 809 is equal to the diameter of the top rod 807, and the inner diameter of the bolt 806 is equal to the outer diameter of the plug rod 802.

[0030] Adopt the above scheme: by placing the dust collecting box 803 at the bottom end of the device shell 1, the filter screen 808 is sleeved with the screen and placed above the top rod 807 through the positioning groove 809 at the bottom, and the plug rod 802 is aligned with the bolt 806, then the second cylinder 801 is started to go down, so that the plug rod 802 is inserted into the limiting piece 805 and the bolt 806, at this time the bolt 806 is rotated to go down, so that the bolt 806 extrudes the limiting piece 805 through the slope at the bottom, so that the limiting piece 805 is folded, and then the plug rod 802 is tightly held, thereby completing the connection of the second cylinder 801 and the dust collecting box 803, at this time the second cylinder 801 is started to drive the dust collecting box 803 and the filter screen 808 to go up, so that the dust collecting box 803 seals the bottom of the device, and the filter screen 808 can intercept the dust sucked into the device through the holes and the screen, and make it fall into the inside of the dust collecting box 803 after the fan blade 6 stops.

[0031] The working principle and use process of the application are as follows: first, the first servo motor 202 is started to drive the screw rod 203 to rotate, so that the support plate 204 can be driven to move up and down through the threads of the screw rod 203, thereby changing the height of the mechanical arm 205 fixed on the support plate 204, the mechanical arm 205 has multiple rotary joints and is driven to rotate by a motor, and the polishing disc 206 can be made to approach the wall surface to be polished through the multiple rotary joints, and the polishing disc 206 is started to rotate to polish the wall surface after the polishing disc 206 is attached to the wall surface.

[0032] Secondly, the first cylinder 402 is started to drive the baffle 403 to lift, thereby opening the air inlet channel of the group of dust collecting grooves 401, so that the device can perform dust collection operation in this direction, and the guide box 404 is inserted into the group of dust collecting grooves 401, so that the outer wall of the guide box 404 contacts and extrudes the clamping block 407 after the contact, the clamping block 407 and the limiting block 405 are inwards retracted, and the limiting block 405 and the clamping block 407 are reset and inserted into the insertion slot opened in the inner wall of the guide box 404 after the guide box 404 is inserted as a whole through the restoring force of the reset spring 406, thereby limiting and fixing the guide box 404 through multiple clamping blocks 407, so that the guide box 404 can extend the dust collection distance of the device, and the opening of the guide box 404 faces downward, which can effectively collect and guide the dust on the ground, when the device needs to be transferred as a whole, the pressure plate 411 is pressed to make the pressure rod 410 and the abutting rod 409 as a whole move downward through the guide of the guide slot 408 and extrude the limiting block 405, so that the limiting block 405 is inwards retracted, and then the guide box 404 is taken off, thereby saving space and facilitating the transfer of the overall position of the device.

[0033] Finally, by placing the dust collecting box 803 at the bottom end of the device housing 1, the filter screen 808 is placed above the top rod 807 after being sleeved with the gauze and aligned with the top rod 807 through the positioning groove 809 at the bottom, and the plug rod 802 is aligned with the bolt 806, then the second cylinder 801 is started to move downward, so that the plug rod 802 is inserted into the bolt 806 and the limiting part 805, at this time the bolt 806 is rotated to move downward, so that the bolt 806 extrudes the limiting part 805 through the slope at the bottom, so that the limiting part 805 is folded, and then the plug rod 802 is tightly held, thereby completing the connection of the second cylinder 801 and the dust collecting box 803, at this time the second cylinder 801 is started to drive the dust collecting box 803 and the filter screen 808 to move upward, so that the dust collecting box 803 seals the bottom of the device, the filter screen 808 can intercept the dust sucked into the device through the holes and the gauze, and make it fall into the inside of the dust collecting box 803 for collection after the fan blade 6 stops, and the air outlet channel is arranged in the inside of the device housing 1 to cool part of the high-heat components, the filtered air will not damage the service life of the elements, and after cooling, the air is discharged through the side end of the device housing 1.

[0034] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements recited, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An adjustable sanding device for use in house renovation, comprising a device housing (1), characterized in that: The top end of the device shell (1) is fixed with a wall polishing mechanism (2), the bottom end of the device shell (1) is fixed with a traveling wheel (3), the outside of the device shell (1) is provided with a guide mechanism (4), the top end of the inside of the device shell (1) is fixed with a second servo motor (5), the rotating end of the second servo motor (5) is fixed with a fan blade (6), the inside of the device shell (1) is fixed with a mounting bracket (7), and the bottom end of the inside of the device shell (1) is provided with a dust collecting mechanism (8). The wall polishing mechanism (2) comprises a support frame (201), a first servo motor (202) and a screw rod (203), the support frame (201) is fixed at the top end of the device shell (1), the top end of the support frame (201) is fixed with the first servo motor (202), and the rotating end of the first servo motor (202) is fixed with the screw rod (203); the outer wall of the screw rod (203) is threadedly connected with a supporting plate (204). The guide mechanism (4) comprises a dust collecting groove (401), a first air cylinder (402) and a baffle (403), the dust collecting groove (401) is fixed outside the device shell (1), the top end of the dust collecting groove (401) is fixed with the first air cylinder (402), and the top end of the first air cylinder (402) is fixed with the baffle (403).

2. The adjustable sanding device for use in house finishing of claim 1, wherein: The outside of the supporting plate (204) is fixed with a mechanical arm (205), the outside of the mechanical arm (205) is provided with a polishing disc (206), and the inner wall of the supporting plate (204) is attached to the outer wall of the support frame (201).

3. The adjustable sanding device for use in house finishing of claim 1, wherein: The outside of the dust collecting groove (401) is provided with a guide box (404), the inside of the dust collecting groove (401) is slidably connected with a limiting block (405), the outside of the limiting block (405) is fixed with a return spring (406), the outside of the limiting block (405) is fixed with a clamping block (407), the inside of the limiting block (405) is provided with a guide groove (408), the inside of the guide groove (408) is provided with a resisting rod (409), the top end of the resisting rod (409) is fixed with a pressing rod (410), and the top end of the pressing rod (410) is fixed with a pressing disc (411).

4. An adjustable sanding device for use in house finishing according to claim 3, wherein: The dust collecting groove (401) is provided with four groups, the dust collecting groove (401) is arranged in an annular array about the central axis of the device shell (1), the first air cylinder (402) is provided with two groups, the first air cylinder (402) is symmetrically arranged about the central axis of the dust collecting groove (401), and the outer wall of the baffle (403) is attached to the inner wall of the dust collecting groove (401).

5. The adjustable sanding device for use in house finishing of claim 3, wherein: The input end of the guide box (404) faces downward, the outer wall of the limiting block (405) is attached to the inner wall of the dust collecting groove (401), the return spring (406) is provided with two groups, the return spring (406) is symmetrically arranged about the central axis of the limiting block (405), and the return spring (406) is used for pressing the limiting block (405) and keeping it in a left moving trend.

6. The adjustable sanding device for use in house finishing of claim 3, wherein: The card block (407) is provided with two groups, the card block (407) is symmetrically distributed about the central axis of the limiting block (405), the inside of the guide box (404) is provided with a slot, one end of the card block (407) is provided with a curved surface, one end of the guide box (404) is provided with a curved surface.

7. The adjustable sanding device for use in house finishing of claim 3, wherein: The limiting block (405) is provided with two groups, the limiting block (405) is symmetrically distributed about the central axis of the dust collecting groove (401), the outer wall of the pressing rod (410) is attached to the inner wall of the dust collecting groove (401), the pressing rod (410) and the pressing disc (411) are provided with two groups symmetrically distributed about the central axis of the dust collecting groove (401).

8. The adjustable sanding device for use in house finishing of claim 1, wherein: The dust collecting mechanism (8) includes a second cylinder (801), a plug rod (802) and a dust collecting box (803), the bottom end of the second cylinder (801) is fixed on the mounting frame (7), the bottom end of the second cylinder (801) is fixed with the plug rod (802), the bottom end of the inside of the device shell (1) is provided with the dust collecting box (803), the bottom end of the inside of the dust collecting box (803) is fixed with the connecting box (804), the bottom end of the inside of the connecting box (804) is fixed with the limiting piece (805), the inside of the connecting box (804) is screwed with the bolt (806), the bottom end of the inside of the dust collecting box (803) is fixed with the top rod (807), the top end of the top rod (807) is abutted and connected with the filter screen (808), the bottom end of the filter screen (808) is provided with the positioning groove (809).

9. An adjustable sanding device for use in house finishing according to claim 8, wherein: The outer wall of the dust collecting box (803) is attached to the inner wall of the device shell (1), the top end of the limiting piece (805) is provided with an inclined surface, the bottom end of the bolt (806) is provided with an inclined surface.

10. The adjustable sanding device for use in house finishing of claim 8, wherein: The top rod (807) is provided with four groups, the top rod (807) is equidistantly arranged about the central axis of the dust collecting box (803), the positioning groove (809) is provided with four groups, the positioning groove (809) is equidistantly arranged about the central axis of the filter screen (808), the diameter of the positioning groove (809) is equal to the diameter of the top rod (807), the inner diameter of the bolt (806) is equal to the outer diameter of the plug rod (802).

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