CN216138630U

CN216138630U - Dust hood and wall polisher that constitutes thereof

Info

Publication number: CN216138630U
Application number: CN202121601396.7U
Authority: CN
Inventors: 孙宇航; 孙兆飞; 段瑞忠; 杨金威; 舒浩; 陈春燕
Original assignee: Jinhua Gaojiu Electric Equipment Co ltd
Current assignee: Jinhua Gaojiu Electric Equipment Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-03-29
Anticipated expiration: 2031-07-14

Abstract

The utility model relates to a dust hood and a wall surface polisher formed by the dust hood, and the dust hood comprises a hood body and an arc hood which are detachably connected with each other, wherein trapezoidal lugs are vertically arranged on the left side and the right side of a connecting end of the arc hood, a male buckle is arranged at the top end of each trapezoidal lug, each male buckle comprises an elastic arm, a hook-shaped part is arranged at the top end of each elastic arm, trapezoidal sliding grooves which are the same as the trapezoidal lugs in number and correspond to the trapezoidal lugs in position are formed in the bottom surface of the connecting end of the hood body, the trapezoidal lugs are in sliding fit in the trapezoidal sliding grooves, and notches are formed in the top surfaces of the trapezoidal sliding grooves; this neotype suction hood installs and removes the convenience, pulls down behind the arc cover, can carry out the wall reentrant corner and polish.

Description

Dust hood and wall polisher that constitutes thereof

Technical Field

The utility model relates to the technical field of wall surface grinding equipment, in particular to a dust hood and a wall surface grinding machine formed by the dust hood.

Background

The dust hood for the wall surface grinding machine is common in the market, the dust hood is sleeved on the outer side of the grinding disc, and the dust hood comprises a hood body and an arc-shaped hood which are detachably connected with each other; and (4) after the arc-shaped cover is detached, polishing the internal corner of the wall surface.

The following problems exist in the common dust hood on the market: the dust hood that common on the market is disassembled the difficulty, with the cover body and arc cover assembled joint back, there is great not hard up between the cover body and the arc cover.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is that the novel dust hood is convenient to assemble and disassemble, and the internal corner of the wall surface can be polished after the arc-shaped hood is disassembled.

In order to solve the technical problem, the dust hood provided by the utility model comprises a hood body and an arc hood which are detachably connected with each other, wherein trapezoidal lugs are vertically arranged on the left side and the right side of a connecting end of the arc hood, a male buckle is arranged at the top end of each trapezoidal lug, each male buckle comprises an elastic arm, a hook-shaped part is arranged at the top end of each elastic arm, trapezoidal sliding grooves which are the same in number and correspond to the trapezoidal lugs in position are formed in the bottom surface of the connecting end of the hood body, the trapezoidal lugs are in sliding fit in the trapezoidal sliding grooves, and notches are formed in the top surfaces of the trapezoidal sliding grooves;

when the hood works, the hook-shaped part is elastically pressed into the notch, and the buckling surface of the male buckle is attached to the top of the connecting end of the hood body.

Furthermore, an accommodating groove is formed in the top surface of the trapezoidal convex block, the elastic arm is arranged on the bottom surface of the accommodating groove, the hook-shaped part is positioned above the trapezoidal convex block, and a guide groove is formed in the top surface of the hook-shaped part; the buckling position structure of the arc cover is compact, and the guide groove enables the cover body and the arc cover to be easily buckled and connected.

Furthermore, a plurality of vent grooves are uniformly distributed on the circumference of the bottom surface of the dust hood; the ventilation groove is arranged to prevent the dust hood from being sucked to be dead on the wall surface and being incapable of moving.

The utility model provides a contain wall polisher of suction hood, still includes the casing, the upper and lower appearance chamber is separated into through the interlayer to the inner chamber of casing, on hold the intracavity and be equipped with the motor, the one end of the output shaft of motor passes through the through-hole on the interlayer and extends to and holds the intracavity down, the outside cover of output shaft is equipped with and is located the impeller that holds the intracavity down, the air exit has been seted up on the rear side inner wall that holds the chamber down, the air exit passes through the hose and is connected with the dust bag, set up the air intake that is located the impeller below on the bottom surface that holds the chamber down, the below of casing is equipped with bottom open-ended housing, the air outlet has been seted up at the top of housing, link to each other through the pipeline between air outlet and the air intake, the suction hood sets up on the lower port of housing.

Further, a ring-shaped lamp strip is sleeved on the housing; when working at night, the annular lamp strip provides good illumination.

Furthermore, the bottom of output shaft is connected with first pivot, the bottom of casing is extended to the one end that the output shaft was kept away from to first pivot, it is provided with the second pivot to rotate between casing and the housing, through gear drive cooperation between the bottom of first pivot and the middle part of second pivot, the bottom of second pivot passes the through-hole at housing top and extends to in the housing, the bottom of second pivot is equipped with the mill.

Furthermore, a first gear is arranged at the bottom end of the first rotating shaft, a second gear positioned between the shell and the housing is sleeved on the second rotating shaft, the first gear and the second gear are in meshing transmission, a first bearing and a second bearing for supporting the second rotating shaft to rotate are respectively arranged on the shell and the housing, and a spring positioned between the first bearing and the gear is sleeved on the second rotating shaft; when the protruding position of wall is polished, the mill will overcome the spring force and move up, prevents to polish and exposes the end.

Furthermore, a gear box with an opening at the top is arranged between the shell and the housing, a positioning sleeve is arranged at the bottom of the gear box in a penetrating manner, the bottom of the positioning sleeve is fixed in the through hole in a matching manner, the second bearing is fixed in an inner hole at the top of the positioning sleeve in a matching manner, and the first gear and the second gear are both positioned in the gear box; the gear box plays a role in protecting internal parts.

The utility model has the beneficial effects that: when the dust hood is assembled, the hook-shaped part is pushed into the trapezoidal sliding groove, when the trapezoidal bump is in sliding fit into the trapezoidal sliding groove, the male buckle generates elastic deformation, after the hook-shaped part is elastically pressed into the notch, the buckling surface of the male buckle is attached to the top of the connecting end of the hood body, and under the limiting action of the trapezoidal sliding groove and the hook-shaped part, the hood body and the arc-shaped hood are firmly connected without looseness; when the dust hood is disassembled, the hook-shaped part is pushed and pressed and retreated into the trapezoidal sliding groove from the notch, and after the hook-shaped part retreats out of the trapezoidal sliding groove, the hood body and the arc-shaped hood are separated up and down; this neotype suction hood installs and removes the convenience, pulls down behind the arc cover, can carry out the wall reentrant corner and polish.

Drawings

In order to clarify the explanation of the innovative principles of the present invention and its advantages compared with the prior art suction hoods, a possible embodiment is described below by way of non-limiting example applying said principles with the aid of the annexed drawings. In the figure:

FIG. 1 is a schematic view of a suction hood of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a top view of a wall sander including the suction hood of FIG. 1;

FIG. 4 is a cross-sectional view taken at FIG. 3B-B;

FIG. 5 is an enlarged view of a portion of FIG. 4D;

fig. 6 is a perspective view of fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the present embodiment are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific circumstances.

Example 1

As shown in fig. 1-2, the dust hood of the embodiment includes a hood body 3 and an arc hood 4 detachably connected to each other, trapezoidal bumps 5 are vertically disposed on both left and right sides of a connection end of the arc hood 4, a male buckle 6 is disposed on a top end of the trapezoidal bump 5, the male buckle 6 includes an elastic arm 8, a hook-shaped portion 9 is disposed on a top end of the elastic arm 8, trapezoidal sliding grooves 7 having the same number and corresponding positions as the trapezoidal bumps 5 are disposed on a bottom surface of the connection end of the hood body 3, the trapezoidal bumps 5 are slidably fitted in the trapezoidal sliding grooves 7, and notches 10 are disposed on top surfaces of the trapezoidal sliding grooves 7;

when the hook-shaped part 9 is elastically pressed into the notch 10 during working, the buckling surface 11 of the male buckle 6 is attached to the top of the connecting end of the cover body 3.

The top surface of the trapezoidal bump 5 is provided with a containing groove 12, the elastic arm 8 is arranged on the bottom surface of the containing groove 12, the hook-shaped part 9 is positioned above the trapezoidal bump 5, and the top surface of the hook-shaped part 9 is provided with a guide groove 13.

Preferably, a plurality of vent grooves 14 are uniformly distributed on the circumference of the bottom surface of the dust hood.

Example 2

Referring to fig. 3-6, a wall sander including the suction hood of embodiment 1, further comprising a housing 15, the inner cavity of the shell 15 is divided into an upper cavity 17 and a lower cavity 18 by an interlayer 16, a motor 21 is arranged in the upper cavity 17, one end of an output shaft 22 of the motor 21 passes through the through hole on the partition 16 and extends into the lower cavity 18, the outer side of the output shaft 22 is sleeved with an impeller 23 positioned in the lower cavity 18, the inner wall of the rear side of the lower cavity 18 is provided with an air outlet 19, the air outlet 19 is connected with a dust bag through a hose, an air inlet 20 positioned below the impeller 23 is arranged on the bottom surface of the lower cavity 18, an encloser T with an opening at the bottom is arranged below the shell 15, an air outlet C is arranged at the top of the encloser T, the air outlet C is connected with the air inlet 20 through a pipeline, and the dust hood is arranged on the lower port of the housing T.

Preferably, the motor 21 is a brushless dc motor; the motor 21 can also be a brushed dc motor.

The housing T is sleeved with a ring-shaped lamp strip 31.

The bottom of output shaft 22 is connected with first pivot 32, the bottom of casing 15 is extended to the one end that output shaft 22 was kept away from to first pivot 32, it is provided with second pivot 33 to rotate between casing 15 and the housing T, through gear drive cooperation between the bottom of first pivot 32 and the middle part of second pivot 33, the bottom of second pivot 33 passes the through-hole K at housing T top and extends to in the housing T, the bottom of second pivot 33 is equipped with mill 1.

The bottom of first pivot 32 is equipped with first gear 38, the cover is equipped with the second gear 34 that is located between casing 15 and the housing T on the second pivot 33, meshing transmission between first gear 38 and the second gear 34, be equipped with respectively on casing 1 and the housing T and be used for supporting rotatory first bearing 35 of second pivot 33, second bearing 36, the cover is equipped with the spring 37 that is located between first bearing 35 and the gear 34 on the second pivot 33.

Be equipped with open-top's gear box 39 between casing 15 and the housing T, position sleeve 40 is worn to be equipped with in the bottom of gear box 39, the bottom cooperation of position sleeve 40 is fixed in through-hole K, second bearing 36 cooperation is fixed in the hole at position sleeve 40 top, first gear 38, second gear 34 all are located gear box 39.

When the dust hood is assembled, the hook-shaped part 9 is pushed into the trapezoidal sliding groove 7, when the trapezoidal bump 5 is in sliding fit into the trapezoidal sliding groove 7, the male buckle 6 generates elastic deformation, after the hook-shaped part 9 is elastically pressed into the notch 10, the buckling surface 11 of the male buckle 6 is attached to the top of the connecting end of the hood body 3, and under the limiting action of the trapezoidal sliding groove 7 and the hook-shaped part 9, the hood body 3 and the arc hood 4 are firmly connected without looseness; when the dust hood is disassembled, the hook-shaped part 9 is pushed and pressed and retreated into the trapezoidal sliding groove 7 from the notch 10, and after the hook-shaped part 9 retreats into the trapezoidal sliding groove 7, the hood body 3 and the arc-shaped hood 4 are separated up and down; this neotype suction hood installs and removes the convenience, pulls down behind the arc cover, can carry out the wall reentrant corner and polish.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a dust hood, includes cover body (3) and arc cover (4) that can dismantle the connection each other, its characterized in that: trapezoidal lugs (5) are vertically arranged on the left side and the right side of the connecting end of the arc-shaped cover (4), male buckles (6) are arranged at the top ends of the trapezoidal lugs (5), each male buckle (6) comprises an elastic arm (8), hook-shaped portions (9) are arranged at the top ends of the elastic arms (8), trapezoidal sliding grooves (7) which are the same in number as the trapezoidal lugs (5) and correspond to the trapezoidal lugs (5) in position are formed in the bottom surface of the connecting end of the cover body (3), the trapezoidal lugs (5) are in sliding fit in the trapezoidal sliding grooves (7), and notches (10) are formed in the top surface of the trapezoidal sliding grooves (7);

when the hook-shaped buckle works, the hook-shaped part (9) is elastically pressed into the notch (10), and the buckling surface (11) of the male buckle (6) is attached to the top of the connecting end of the cover body (3).

2. The suction hood as set forth in claim 1, wherein: holding grooves (12) are formed in the top surfaces of the trapezoidal convex blocks (5), the elastic arms (8) are arranged on the bottom surfaces of the holding grooves (12), the hook-shaped portions (9) are located above the trapezoidal convex blocks (5), and guide grooves (13) are formed in the top surfaces of the hook-shaped portions (9).

3. The suction hood as set forth in claim 1, wherein: a plurality of vent grooves (14) are uniformly distributed on the circumference of the bottom surface of the dust hood.

4. A wall sander including the suction hood of claim 1, wherein: the dust collector is characterized by further comprising a shell (15), an inner cavity of the shell (15) is divided into an upper accommodating cavity (17) and a lower accommodating cavity (18) through an interlayer (16), a motor (21) is arranged in the upper accommodating cavity (17), one end of an output shaft (22) of the motor (21) penetrates through a through hole in the interlayer (16) and extends into the lower accommodating cavity (18), an impeller (23) located in the lower accommodating cavity (18) is sleeved on the outer side of the output shaft (22), an air outlet (19) is formed in the inner wall of the rear side of the lower accommodating cavity (18), the air outlet (19) is connected with a dust collection bag through a hose, an air inlet (20) located below the impeller (23) is formed in the bottom surface of the lower accommodating cavity (18), a cover shell (T) with an opening at the bottom is arranged below the shell (15), an air outlet (C) is formed in the top of the cover shell (T), and the air outlet (C) is connected with the air inlet (20) through a pipeline, the dust hood is arranged on the lower port of the housing (T).

5. A wall grinding machine according to claim 4, characterized in that: and the housing (T) is sleeved with an annular lamp strip (31).

6. A wall grinding machine according to claim 4, characterized in that: the bottom of output shaft (22) is connected with first pivot (32), the bottom of casing (15) is extended to the one end that output shaft (22) were kept away from in first pivot (32), it is provided with second pivot (33) to rotate between casing (15) and housing (T), through gear drive cooperation between the bottom of first pivot (32) and the middle part of second pivot (33), the bottom of second pivot (33) passes through-hole (K) at housing (T) top and extends to in housing (T), the bottom of second pivot (33) is equipped with mill (1).

7. The wall sander of claim 6, wherein: the bottom of first pivot (32) is equipped with first gear (38), the cover is equipped with second gear (34) that are located between casing (15) and housing (T) on second pivot (33), meshing transmission between first gear (38) and second gear (34), be equipped with respectively on casing (15) and housing (T) and be used for supporting rotatory first bearing (35), second bearing (36) of second pivot (33), the cover is equipped with spring (37) that are located between first bearing (35) and second gear (34) on second pivot (33).

8. The wall sander of claim 7, wherein: be equipped with open-top's gear box (39) between casing (15) and housing (T), position sleeve (40) are worn to be equipped with in the bottom of gear box (39), the bottom cooperation of position sleeve (40) is fixed in through-hole (K), second bearing (36) cooperation is fixed in the hole at position sleeve (40) top, first gear (38), second gear (34) all are located gear box (39).