Interior wall polishing device for constructional engineering

Abstract

The utility model provides an interior wall polishing device for constructional engineering, which comprises a machine body assembly and a dust collection mechanism, and the machine body assembly comprises a machine shell, a grab handle and a speed reduction motor; wherein the grab handle is fixedly connected to one side of the outer side wall of the machine shell, the gear motor is installed in the machine shell, and the dust collection mechanism is installed on the outer side of the machine shell; the gear motor drives the quick-release polishing mechanism to polish an inner wall surface, then the inner layer structure of the blocking mechanism is attached to the wall surface in a telescopic mode, and dust generated by polishing is preliminarily intercepted; and then dust generated by polishing is secondarily intercepted through the outer layer structure of the blocking mechanism, and meanwhile, the dust intercepted by the blocking mechanism is sucked and recycled through a dust collector in cooperation with the dust collection mechanism, so that the dust interception effect is improved, and pollution to the working environment and harm to human health are reduced.

Description

Technical Field

[0001] The utility model relates to a grinding device, in particular to an inner wall grinding device used in construction engineering, belonging to the technical field of inner wall grinding. Background Art

[0002] Interior wall grinding is one of the important processes in interior decoration of construction projects. Its main purpose is to make the wall surface smoother and flatter, laying a good foundation for the subsequent laying of decorative materials such as paint and wallpaper. The interior wall grinding operation mainly uses sandpaper or a grinder to rub the wall surface to remove unevenness, paint defects, putty powder, etc. on the wall surface, making the wall surface smoother and flatter.

[0003] The electric grinder is one of the commonly used devices for interior wall grinding. It can complete the grinding of large-area walls more efficiently and is usually used with sandpaper of different coarseness and fineness.

[0004] When using a traditional interior wall grinding device for a construction project, a dust hood is usually used in conjunction with a vacuum cleaner to attract the dust generated during the grinding process. However, the position of the dust hood is usually fixed, and the dust hood is usually a single-layer result and cannot completely fit the wall surface. As a result, a large amount of dust will still overflow from the dust hood during the grinding process, which not only pollutes the working environment but also causes harm to human health. Therefore, an interior wall grinding device for a construction project is proposed. Utility Model Content

[0005] In view of this, the utility model provides an inner wall grinding device for construction engineering to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the embodiment of the utility model is implemented as follows: an interior wall grinding device for construction engineering, comprising a body component and a dust suction mechanism, wherein the body component comprises a housing, a handle and a reduction motor;

[0007] The handle is fixedly connected to one side of the outer wall of the housing, the reduction motor is installed inside the housing, the dust suction mechanism is installed outside the housing, a blocking mechanism is installed below the dust suction mechanism, and a quick-release grinding mechanism is installed on the output shaft of the reduction motor;

[0008] The quick-release grinding mechanism is used to grind the inner wall surface in cooperation with the reduction motor, and the sandpaper is disassembled and assembled by magnetic attraction;

[0009] The blocking mechanism includes an inner layer structure and an outer layer structure, wherein the inner layer structure is used to fit the wall surface by telescoping to initially intercept dust, and the outer layer structure is used to secondary intercept dust overflowing from the inner layer structure;

[0010] The dust suction mechanism is used to cooperate with a vacuum cleaner to suck and recover the dust intercepted by the blocking mechanism.

[0011] Further preferably, the dust collection mechanism includes a dust collection hood, a plurality of dust collection pipes and a guide pipe;

[0012] Among them, the inner wall of the dust hood is fixedly connected to the outer wall of the casing, several dust suction tubes are connected between the casing and the dust hood, one end of the guide tube is connected to one side of the outer wall of the dust hood, and the other end of the guide tube is fixedly connected to the inner wall of the handle.

[0013] Further preferably, the inner layer structure includes an annular sleeve, an annular baffle, a plurality of balls and a plurality of springs;

[0014] Among them, one end of the annular sleeve is fixedly connected to the bottom of the casing, the outer wall of the annular baffle is slidably connected to the inner wall of the annular sleeve, several of the balls are slidably connected to the bottom of the annular baffle, and several of the springs are fixedly connected between the annular sleeve and the annular baffle.

[0015] Further preferably, the outer layer structure includes an outer retaining ring and a plurality of flexible bristles;

[0016] One end of the outer retaining ring is fixedly connected to the bottom of the housing, and a plurality of the flexible bristles are fixedly connected to the other end of the outer retaining ring.

[0017] Further preferably, the quick-release grinding mechanism comprises a grinding disc, a circular sandpaper, a plurality of first magnetic sheets and a plurality of second magnetic sheets;

[0018] Among them, the grinding disc is fixedly connected to the output shaft of the reduction motor, the circular sandpaper is arranged at the bottom of the grinding disc, several first magnetic sheets are fixedly connected to the bottom of the inner wall of the grinding disc, several second magnetic sheets are slidably connected to the inner wall of the circular sandpaper, and the first magnetic sheets are adapted to the second magnetic sheets.

[0019] Further preferably, the bottom of each of the second magnetic sheets is fixedly connected with a rubber pad, and the outer side wall of the rubber pad is slidably connected to the inner side wall of the circular sandpaper.

[0020] Further preferably, one end of the guide pipe away from the dust collecting hood is connected to a bellows, and the outer side wall of the casing is fixedly connected to a handle.

[0021] Further preferably, an annular light strip is installed on the outer side wall of the outer retaining ring.

[0022] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0023] 1. The utility model drives a quick-detachable grinding mechanism to grind the inner wall surface through a reduction motor, and then uses the inner layer structure of the blocking mechanism to fit the wall surface in a telescopic manner to preliminarily intercept the dust generated by the grinding, and then uses the outer layer structure of the blocking mechanism to secondary intercept the dust generated by the grinding, and at the same time cooperates with the dust collection mechanism to use a vacuum cleaner to attract and recover the dust intercepted by the blocking mechanism, thereby improving the dust interception effect and reducing the pollution to the working environment and the harm to human health.

[0024] Second, the utility model uses a quick-release grinding mechanism to install and fix the sandpaper by means of magnetic attraction, so that the sandpaper on the grinding device can be quickly replaced according to actual needs, thereby improving the efficiency of sandpaper replacement.

[0025] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a structural diagram of the utility model;

[0028] Figure 2 It is a schematic cross-sectional structure diagram of the utility model from a first viewing angle;

[0029] Figure 3 It is a cross-sectional structural schematic diagram of the utility model from a second viewing angle;

[0030] Figure 4 It is an axonometric view of the grinding disc of the utility model.

[0031] Figure numerals: 1. body assembly; 2. dust suction mechanism; 3. blocking mechanism; 4. quick-release grinding mechanism; 101. housing; 102. handle; 103. reduction motor; 201. dust hood; 202. dust suction tube; 203. guide tube; 301. annular sleeve; 302. annular baffle; 303. ball bearing; 304. spring; 305. outer baffle ring; 306. flexible bristles; 401. grinding disc; 402. circular sandpaper; 403. first magnetic sheet; 404. second magnetic sheet; 51. rubber pad; 52. bellows; 53. handle; 54. annular light strip. DETAILED DESCRIPTION

[0032] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0033] It should be noted that the terms "first", "second", "symmetrical", "array", etc. are only used to distinguish between description and position description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the definition of "first", "symmetrical", etc. can explicitly or implicitly include one or more of these features; similarly, when the number of certain features is not limited in the form of words such as "two" or "three", it should be noted that this feature also explicitly or implicitly includes one or more feature quantities.

[0034] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0035] like Figure 1-4 As shown, the embodiment of the utility model provides an interior wall grinding device for construction engineering, including a body component 1 and a dust suction mechanism 2, wherein the body component 1 includes a housing 101, a handle 102 and a reduction motor 103;

[0036] The handle 102 is fixedly connected to one side of the outer wall of the housing 101, the reduction motor 103 is installed inside the housing 101, the dust suction mechanism 2 is installed outside the housing 101, a blocking mechanism 3 is installed below the dust suction mechanism 2, and a quick-release grinding mechanism 4 is installed on the output shaft of the reduction motor 103;

[0037] The quick-release grinding mechanism 4 is used to cooperate with the reduction motor 103 to grind the inner wall surface, and to disassemble and assemble the sandpaper by magnetic attraction;

[0038] The blocking mechanism 3 includes an inner layer structure and an outer layer structure. The inner layer structure is used to fit the wall surface by telescoping to initially intercept the dust, and the outer layer structure is used to secondary intercept the dust overflowing from the inner layer structure.

[0039] The dust suction mechanism 2 is used to cooperate with a vacuum cleaner to suck and recover the dust intercepted by the blocking mechanism 3 .

[0040] In one embodiment, the dust collection mechanism 2 includes a dust collection cover 201, a plurality of dust collection pipes 202 and a guide pipe 203;

[0041] Among them, the inner wall of the dust hood 201 is fixedly connected to the outer wall of the casing 101, and several dust suction pipes 202 are connected between the casing 101 and the dust hood 201. One end of the guide pipe 203 is connected to one side of the outer wall of the dust hood 201, and the other end of the guide pipe 203 is fixedly connected to the inner wall of the handle 102. The end of the guide pipe 203 away from the dust hood 201 is connected to the bellows 52, and the outer wall of the casing 101 is fixedly connected to the handle 53. The intercepted dust is sucked into the interior of the dust hood 201 through the dust suction pipe 202, and then the dust is sucked out by using the guide pipe 203 in conjunction with the vacuum cleaner for centralized recovery.

[0042] In one embodiment, the inner structure includes an annular sleeve 301, an annular baffle 302, a plurality of balls 303 and a plurality of springs 304;

[0043] Among them, one end of the annular sleeve 301 is fixedly connected to the bottom of the housing 101, the outer wall of the annular baffle 302 is slidably connected to the inner wall of the annular sleeve 301, a plurality of balls 303 are slidably connected to the bottom of the annular baffle 302, and a plurality of springs 304 are fixedly connected between the annular sleeve 301 and the annular baffle 302. The annular baffle 302 slides into the inside of the annular sleeve 301 under the action of pressure and drives the spring 304 to be compressed, so that the annular baffle 302 can be fully fitted with the wall surface, and the balls 303 are arranged to reduce the friction between the annular baffle 302 and the wall surface, so that the annular baffle 302 can slide smoothly on the wall surface;

[0044] The outer structure includes an outer retaining ring 305 and a plurality of flexible bristles 306;

[0045] Among them, one end of the outer retaining ring 305 is fixedly connected to the bottom of the housing 101, and a number of flexible bristles 306 are fixedly connected to the other end of the outer retaining ring 305. An annular light strip 54 is installed on the outer wall of the outer retaining ring 305, and the outer retaining ring 305 cooperates with the flexible bristles 306 to perform secondary dust interception.

[0046] In one embodiment, the quick-release grinding mechanism 4 includes a grinding disc 401, a circular sandpaper 402, a plurality of first magnetic sheets 403, and a plurality of second magnetic sheets 404;

[0047] Among them, the grinding disc 401 is fixedly connected to the output shaft of the reduction motor 103, the circular sandpaper 402 is arranged at the bottom of the grinding disc 401, a plurality of first magnetic sheets 403 are fixedly connected to the bottom of the inner wall of the grinding disc 401, a plurality of second magnetic sheets 404 are slidably connected to the inner wall of the circular sandpaper 402, the first magnetic sheet 403 is adapted to the second magnetic sheet 404, and the bottom of the second magnetic sheet 404 is fixedly connected with a rubber pad 51, the outer wall of the rubber pad 51 is slidably connected to the inner wall of the circular sandpaper 402, and the circular sandpaper 402 is lifted up from one side so that the rubber pad 51 can be used to drive the second magnetic sheet 404 to separate from the first magnetic sheet 403, thereby removing the circular sandpaper 402 from the grinding disc 401.

[0048] When the utility model is working: the bellows 52 is stretched by moving and connected with the vacuum cleaner, and then the grip 102 and the handle 53 are moved to drive the casing 101 as a whole to fit the wall surface that needs to be polished, so that the annular baffle 302 slides into the inside of the annular sleeve 301 under the action of pressure, and drives the spring 304 to be compressed, so that the annular baffle 302 can fully fit with the wall surface, and the ball 303 is arranged to reduce the friction between the annular baffle 302 and the wall surface, so that the annular baffle 302 can slide smoothly on the wall surface.

[0049] When the wall needs to be polished, the air in the dust hood 201 is quickly extracted through the vacuum cleaner using the bellows 52 and the guide tube 203, so that suction is generated in the dust hood 201, and then the polishing disc 401 is driven to rotate by the output shaft of the reduction motor 103, and the rotating polishing disc 401 drives the circular sandpaper 402 to polish the wall, and then the dust generated by the polishing is preliminarily intercepted by the annular sleeve 301, the annular baffle 302 and the ball 303, and then the preliminarily intercepted dust is sucked into the dust hood 201 through the provided dust suction pipe 202.

[0050] When dust overflows from the gap between the annular baffle 302 and the wall, the dust is intercepted for a second time by the outer baffle ring 305 and the flexible bristles 306, and the dust intercepted for the second time is sucked into the dust collecting hood 201 by the dust suction pipe 202 so as to collect the dust in a centralized manner.

[0051] The annular light strip 54 is provided to illuminate the wall surface during the polishing process so that the staff can observe the wall surface before and after polishing.

[0052] When it is necessary to replace the circular sandpaper 402 with a different coarseness, the circular sandpaper 402 is lifted up from one side so that the rubber pad 51 can be used to drive the second magnetic sheet 404 to separate from the first magnetic sheet 403, thereby removing the circular sandpaper 402 from the grinding disc 401, and then the new circular sandpaper 402 is attached to one side of the grinding disc 401, and the rubber pad 51 is moved to drive the second magnetic sheet 404 to slide into the circular sandpaper 402 and engage with the first magnetic sheet 403, thereby completing the replacement operation and improving the replacement efficiency.

[0053] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An interior wall grinding device for construction engineering, comprising a body assembly (1) and a dust collecting mechanism (2), characterized in that: The machine body assembly (1) comprises a housing (101), a handle (102) and a reduction motor (103); The handle (102) is fixedly connected to one side of the outer wall of the housing (101), the reduction motor (103) is installed inside the housing (101), the dust suction mechanism (2) is installed outside the housing (101), a blocking mechanism (3) is installed below the dust suction mechanism (2), and a quick-release grinding mechanism (4) is installed on the output shaft of the reduction motor (103); The quick-release grinding mechanism (4) is used to cooperate with the reduction motor (103) to grind the inner wall surface, and to disassemble and assemble the sandpaper by means of magnetic attraction; The blocking mechanism (3) comprises an inner layer structure and an outer layer structure, wherein the inner layer structure is used to fit the wall surface by telescoping to initially intercept dust, and the outer layer structure is used to secondary intercept dust overflowing from the inner layer structure; The dust suction mechanism (2) is used to cooperate with a vacuum cleaner to attract and recover the dust intercepted by the blocking mechanism (3).

2. The inner wall grinding device for construction engineering according to claim 1, characterized in that: The dust collection mechanism (2) comprises a dust collecting cover (201), a plurality of dust collection pipes (202) and a guide pipe (203); The inner wall of the dust hood (201) is fixedly connected to the outer wall of the housing (101), a plurality of dust suction pipes (202) are connected between the housing (101) and the dust hood (201), one end of the guide pipe (203) is connected to one side of the outer wall of the dust hood (201), and the other end of the guide pipe (203) is fixedly connected to the inner wall of the handle (102).

3. The inner wall grinding device for construction engineering according to claim 1, characterized in that: The inner layer structure comprises an annular sleeve (301), an annular baffle (302), a plurality of balls (303) and a plurality of springs (304); One end of the annular sleeve (301) is fixedly connected to the bottom of the housing (101), the outer wall of the annular baffle (302) is slidably connected to the inner wall of the annular sleeve (301), a plurality of the balls (303) are slidably connected to the bottom of the annular baffle (302), and a plurality of the springs (304) are fixedly connected between the annular sleeve (301) and the annular baffle (302).

4. The inner wall grinding device for construction engineering according to claim 1, characterized in that: The outer layer structure comprises an outer retaining ring (305) and a plurality of flexible bristles (306); One end of the outer retaining ring (305) is fixedly connected to the bottom of the housing (101), and a plurality of the flexible bristles (306) are fixedly connected to the other end of the outer retaining ring (305).

5. The inner wall grinding device for construction engineering according to claim 1, characterized in that: The quick-detachable grinding mechanism (4) comprises a grinding disc (401), a circular sandpaper (402), a plurality of first magnetic sheets (403) and a plurality of second magnetic sheets (404); The grinding disc (401) is fixedly connected to the output shaft of the reduction motor (103), the circular sandpaper (402) is arranged at the bottom of the grinding disc (401), a plurality of the first magnetic sheets (403) are fixedly connected to the bottom of the inner wall of the grinding disc (401), a plurality of the second magnetic sheets (404) are slidably connected to the inner wall of the circular sandpaper (402), and the first magnetic sheets (403) are adapted to the second magnetic sheets (404).

6. The inner wall grinding device for construction engineering according to claim 5, characterized in that: The bottom of each of the second magnetic sheets (404) is fixedly connected to a rubber pad (51), and the outer side wall of the rubber pad (51) is slidably connected to the inner side wall of the circular sandpaper (402).

7. The inner wall grinding device for construction engineering according to claim 2, characterized in that: One end of the guide pipe (203) away from the dust collecting cover (201) is connected to a bellows (52), and the outer side wall of the housing (101) is fixedly connected to a handle (53).

8. The inner wall grinding device for construction engineering according to claim 4, characterized in that: An annular light strip (54) is installed on the outer side wall of the outer retaining ring (305).

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