CN211805211U

CN211805211U - Plane polisher

Info

Publication number: CN211805211U
Application number: CN202020133487.1U
Authority: CN
Inventors: 吴静超; 吴波; 曹健; 吴敏峰; 靖燕
Original assignee: Hangzhou Kinty Tool Manufacture Co ltd
Current assignee: Hangzhou Kinty Tool Manufacture Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-10-30
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to a plane polisher relates to plane grinding tool technical field, and prior art has the problem that is difficult to control the relative reference plane feed volume of polishing dish. The polishing disc comprises a protective cover and a polishing disc arranged in the protective cover, wherein the protective cover comprises a fixing part and a disassembling part, the polishing disc part is positioned in the fixing part, and the other part is positioned in the disassembling part; the grinding disc grinding machine further comprises an auxiliary frame connected to the protective cover, at least one guide rolling piece is installed on the auxiliary frame, the peripheral walls of all the guide rolling pieces and the peripheral wall of the part, extending out of the fixing part, of the grinding disc are tangent to the same plane, and the plane is a reference plane. This scheme can make things convenient for the operator to control the volume of feeding of polishing dish for the reference surface.

Description

Plane polisher

Technical Field

The utility model belongs to the technical field of plane grinding tool technique and specifically relates to a plane polisher is related to.

Background

In the field of building decoration, due to the unevenness of a wall surface or the high roughness of the ground, a plane polisher is required to polish the wall surface so as to obtain the ground or the wall surface with higher flatness.

For example, the patent of the invention of China with application publication number CN 104802049A, a novel dust-free ground polisher, the scheme includes: the sanding disc, be used for the drive sanding disc pivoted driving motor and push-and-pull hand lever polish, under driving motor's drive, the sanding disc can polish ground, and operator's accessible control push-and-pull hand lever is in order to realize polishing the horizontal or longitudinal movement of sanding disc to the operation of polishing on a large scale can be realized. However, such machines have a drawback: because the dish of polishing is discoid, and the protection of the dish periphery of polishing has the same discoid safety cover that is, then leads to ninety degrees reentrant corner between wall and the ground can't be polished, has the limitation of polishing.

Therefore, in the prior art, a grinding machine capable of grinding internal corners also appears; if the utility model discloses a chinese utility model patent that the publication number is CN203317170U, a rotatable detachable polishing disk guard shield structure of wall polisher, this scheme falls into fixed disk and rolling disc two parts with the safety cover, and the rolling disc can realize dismantling relative to the fixed disk, when the operator need polish the reentrant corner, pull down the rolling disc earlier in order to expose a part of the polishing dish to polish the reentrant corner with that a part that the polishing dish exposes.

The above-mentioned improved versions of the grinding devices then have the disadvantage that, due to the absence of a reference support for the whole grinding machine with respect to the wall or the ground, it is not easy for the operator to control the feed of the grinding plate with respect to the wall or the ground; for example, when the sander is used for sanding a floor, a wall is taken as a reference surface, and a sanding disc needs to sand a reentrant corner along the reference surface of the wall, but due to the lack of a supporting and contrasting device for the reference surface on the sander, an operator cannot well control the feeding amount of the sanding disc relative to the reference surface, when the feeding amount is insufficient, the reentrant corner of the floor cannot be well sanded, and when the feeding amount is too large, the sanding disc can abut against the wall and cause abrasion to the wall.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, one of the objects of the utility model is to provide a plane polisher, the convenient feeding volume of control polishing dish for the reference surface.

The above object of the present invention can be achieved by the following technical solutions:

a plane polisher comprises a protective cover and a polishing disc arranged in the protective cover, wherein the protective cover comprises a fixing part and a detaching part, the polishing disc part is positioned in the fixing part, and the other part is positioned in the detaching part; the grinding disc grinding machine further comprises an auxiliary frame connected to the protective cover, at least one guide rolling piece is installed on the auxiliary frame, the peripheral walls of all the guide rolling pieces and the peripheral wall of the part, extending out of the fixing part, of the grinding disc are tangent to the same plane, and the plane is a reference plane.

Through adopting above-mentioned technical scheme, when the operator need polish ground or the wall of reentrant corner department, can pull down the dismantlement portion to make the polishing dish part expose, and polish reentrant corner department with the exposure part of polishing dish.

When the operator polishes the ground, can push the polisher towards the reference plane forever, until the direction rolling member butt to the reference plane, the mill also just tangent to the reference plane this moment, and under this state, the operator can push the polisher and paste along the reference plane and polish ground reentrant corner department, but also just in time can control and keep suitable feed amount between mill and the wall.

The present invention may be further configured in a preferred embodiment as: the auxiliary frame is provided with a guide rolling piece, and the outline of the outer peripheral wall of the polishing disc and the outline of the outer peripheral wall of the guide rolling piece are arranged in a projection manner in the polishing plane of the polishing disc in an internal tangent mode.

By adopting the technical scheme, although only one group of guide rolling members is arranged under the embodiment, the projection of the outline of the outer peripheral wall of the group of guide rolling members and the projection of the outline of the outer peripheral wall of the polishing disc in the polishing plane of the polishing disc are arranged in an internal tangent mode, so that an operator can still well control the proper feeding amount between the polishing disc and the reference plane.

The present invention may be further configured in a preferred embodiment as: two guide rolling pieces are arranged on the auxiliary frame, and the projection position of the tangent point of the grinding disc and the reference plane in the grinding plane of the grinding disc is positioned between the projection positions of the tangent points of the two guide rolling pieces and the reference plane in the grinding plane of the grinding disc.

By adopting the technical scheme, the two guide rolling parts can stably support the grinding disc paste to move along the reference plane.

The present invention may be further configured in a preferred embodiment as: the auxiliary frame is provided with three guide rolling members, the outline of the outer peripheral wall of one guide rolling member and the projection of the outline of the outer peripheral wall of the polishing disc in the polishing plane of the polishing disc are arranged in a tangent mode, and the projection position of the tangent point of the polishing disc and the reference plane in the polishing plane of the polishing disc is located between the projection positions of the tangent points of the other two guide rolling members and the reference plane in the polishing plane of the polishing disc.

By adopting the technical scheme, the purpose of arranging the three groups of guide rolling parts is to increase the stability of the grinding process of the grinding machine on the aspect of quantity, and when one group of guide rolling parts just moves to the concave part, the other two groups of guide rolling parts can still ensure that the grinding disc can normally stick to the reference plane to move, so that the feeding amount is not too large.

The present invention may be further configured in a preferred embodiment as: the guide rolling piece is connected to the auxiliary frame in a sliding mode, the sliding direction of the guide rolling piece is perpendicular to the reference plane, and a limiting piece used for limiting the guide rolling piece to slide is installed on the auxiliary frame.

By adopting the technical scheme, the sliding sleeve part can adjust the sliding telescopic amount relative to the mounting rod, so that the device is adaptive to polishing disks with different sizes.

The present invention may be further configured in a preferred embodiment as: and synchronous telescopic connecting pieces are connected among the guide rolling pieces.

By adopting the technical scheme, the synchronous telescopic connecting piece is used for facilitating the synchronous control of the telescopic of the two guide rolling pieces by an operator, and the operation difficulty is reduced.

The present invention may be further configured in a preferred embodiment as: the guide roller comprises two roller wheels.

Through adopting above-mentioned technical scheme, two rolling wheels make the subsides of polishing pad along reference plane motion more stable.

The present invention may be further configured in a preferred embodiment as: the auxiliary frame comprises a main frame body and a connecting body, the connecting body comprises an installation rod fixed on the main frame body and a sliding sleeve part connected to the installation rod in a sliding mode, and the sliding direction of the sliding sleeve part is perpendicular to the reference plane; the sliding sleeve part is rotatably connected with a turnover part, the turnover axis of the turnover part is parallel to the movement direction of the guide rolling part moving along the reference plane, and the guide rolling part is arranged on the turnover part; the overturning part is provided with a first magnetic block, the sliding sleeve part is provided with a second magnetic block, and when the peripheral wall of the guide rolling part is tangent to the reference plane, the first magnetic block and the second magnetic block attract each other.

By adopting the technical scheme, as the wall surface possibly has the problem of protrusion, once an operator pushes the grinding machine to pass through the protrusion position, particularly when the guide rolling piece passes through the protrusion position, the whole grinding disc is temporarily deviated from the reference plane, so that the problem that the ground at a certain position cannot be ground occurs; at the moment, the operator can turn the turning piece and the guide rolling piece upwards together to separate the first magnetic block from the second magnetic block, and then the grinding disc is used for grinding the ground, so that the ground or the wall surface can be ground in a wider range, and the grinding dead angle is reduced.

To sum up, the utility model discloses a following at least one kind of plane polisher beneficial technological effect:

1. in the scheme, an operator can more conveniently control the feeding amount of the polishing disc relative to the reference surface;

2. in the scheme, the three groups of guide rolling parts are arranged, so that the stability of the movement of the polishing disc is facilitated, and the problem of overlarge feeding amount of the polishing disc can be prevented;

3. in this scheme, because the direction rolling member can follow upset piece and overturn in the lump, then this mill can be wider the realization ground or the polishing of wall, reduce the dead angle of polishing.

Drawings

Fig. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is a diagram of the present embodiment of FIG. 1 in a positional relationship with a reference plane;

fig. 3 is an exploded view of a portion of the components according to a first embodiment of the present invention;

FIG. 4 is a view showing the positions and connection relationships of the guide rollers with the connecting body and the reference plane in FIG. 3;

fig. 5 is a plan view of the second embodiment according to the present invention;

fig. 6 is a top view of the third embodiment according to the present invention;

fig. 7 is a top view of a fourth embodiment according to the present invention;

fig. 8 is a diagram of the positions and connection relationships of the guiding rolling element, the connecting body and the reference plane according to the fifth embodiment of the present invention;

fig. 9 is an exploded schematic view of the sixth embodiment according to the present invention;

fig. 10 is a view showing the positions and connection relations of the guide rollers, the connection body and the reference plane in fig. 9.

In the figure, 1, a protective cover; 11. a fixed part; 12. a detaching part; 13. grinding disc; 14. a drive member; 2. an auxiliary frame; 21. a main frame body; 22. a linker; 221. mounting a rod; 222. a sliding sleeve portion; 23. a universal wheel; 24. erecting a rod; 25. a handle; 26. a limiting member; 27. a force application head; 28. a kidney-shaped groove; 3. a guide roller; 4. a synchronous telescopic connecting piece; 5. a turnover piece; 51. a first magnetic block; 52. a second magnetic block; 6. a reference plane.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example one

Referring to fig. 1 and 2, in order to disclose the present invention, a flat surface sander comprises a protective cover 1, a sanding disc 13 installed in the protective cover 1, and a driving member 14 installed outside the protective cover 1, wherein the driving member 14 is a motor, and an output shaft of the driving member 14 is connected to the sanding disc 13 in the protective cover 1; the protective cover 1 comprises a fixing part 11 and a detaching part 12 detachably connected to the fixing part 11 through a bolt or a magnetic block, a driving part 14 is connected to the fixing part 11, a grinding disc 13 is partially positioned in the fixing part 11, and the other part is positioned in the detaching part 12; when an operator needs to polish the ground or the wall surface at the internal corner, the detachable portion 12 can be detached to expose the polishing disc 13, and the exposed portion of the polishing disc 13 is used to polish the internal corner. Assuming that the surface grinder is used to grind a floor surface, a wall surface at ninety degrees to the floor surface is set as the reference plane 6.

Referring to fig. 1 and 2, the fixing portion 11 is further connected to an auxiliary frame 2, and the auxiliary frame 2 includes a main frame body 21, a connecting body 22 fixedly connected to an upper surface of the main frame body 21, two universal wheels 23 connected to a lower surface of the main frame body 21, a vertical rod 24 fixed to an upper surface of the main frame body 21, and a handle 25 connected to an end portion of the vertical rod 24. The fixing portion 11 is connected to the connecting body 22 by a bolt.

Referring to fig. 3 and 4, the connection body 22 includes a mounting rod 221 fixed to the main frame body 21 and a sliding sleeve portion 222 slidably connected to the mounting rod 221, the sliding direction of the sliding sleeve portion 222 being perpendicular to the reference plane 6; the auxiliary frame 2 is provided with a limiting part 26 for limiting the sliding of the guide rolling element 3, the limiting part 26 is a bolt, the upper end of the limiting part 26 is fixed with a force application head 27 convenient for an operator to manually rotate the limiting part 26, a kidney-shaped groove 28 penetrates through the outer peripheral wall of the sliding sleeve part 222, the length direction of the kidney-shaped groove 28 is parallel to the sliding direction of the sliding sleeve part 222, the lower end of the limiting part 26 penetrates through the kidney-shaped groove 28 and is connected to the mounting rod 221 in a threaded manner, and the force application head 27 abuts against the outer wall of the sliding sleeve part 222, so that the sliding sleeve part 222 is. A set of guide rollers 3 is rotatably connected to the sliding sleeve portion 222, and the set of guide rollers 3 includes two rolling wheels, and both rolling wheels are tangent to the reference plane 6.

The implementation principle of the embodiment is as follows: when the operator polishes the ground, the polisher can be pushed towards the reference plane 6 in a mode of being carelessly pushed until the guide rolling piece 3 abuts against the reference plane 6, at the moment, the polishing disc 13 is just tangent to the reference plane 6, in this state, the operator can push the polisher to stick to the reference plane 6 to polish the internal corner of the ground, and the appropriate feeding amount between the polishing disc 13 and the wall surface can be controlled just in time.

Wherein the sliding sleeve part 222 can adjust the sliding telescopic amount relative to the mounting rod 221, and the device is suitable for grinding discs 13 with different sizes.

Example two

Referring to fig. 5, for the utility model discloses a plane polisher, this embodiment only lies in with embodiment one difference, and the synchronous telescopic connection 4 of still fixedly connected with between two sliding sleeve portions 222, synchronous telescopic connection 4 are shaft-like, and synchronous telescopic connection 4 is used for making things convenient for the flexible of two direction rolling member 3 of operator's synchro control, reduces the operation degree of difficulty.

The implementation principle of the embodiment is as follows: the same as the first embodiment.

EXAMPLE III

Referring to fig. 6, in order to provide a flat surface grinder of the present invention, the present embodiment is different from the second embodiment only in that a set of guiding rolling members 3 is further fixedly connected to the synchronous telescopic connecting member 4, and the guiding rolling members 3 are also tangent to the reference plane 6; the contour of the outer peripheral wall of the grinding disk 13 is tangential to the projection of the contour of the outer peripheral wall of the guide roller 3 in the grinding plane of the grinding disk 13.

The implementation principle of the embodiment is as follows: the three groups of guide rolling members 3 are arranged to increase the stability of the grinding process of the grinding machine on the aspect of quantity, and when one group of guide rolling members 3 just moves to the concave part, the other two groups of guide rolling members 3 can still ensure that the grinding disc 13 can normally move along the reference plane 6, so that the feeding amount is not too large.

Example four

Referring to fig. 7, in order to provide a flat surface grinder of the present invention, the present embodiment and the third embodiment are different only in that no guiding roller 3 is disposed on each of the two sliding sleeve portions 222.

The implementation principle of the embodiment is as follows: although only one set of guide rollers 3 is provided in this embodiment, since the contour of the outer peripheral wall of the set of guide rollers 3 is tangential to the projection of the contour of the outer peripheral wall of the grinding disc 13 in the grinding plane of the grinding disc 13, the operator can still better control the appropriate feeding amount between the grinding disc 13 and the reference plane 6.

EXAMPLE five

Referring to fig. 8, in order to provide a flat surface grinder of the present invention, the present embodiment is different from the first embodiment only in that the sliding sleeve portion 222 is rotatably connected with the turnover member 5, the turnover axis of the turnover member 5 is parallel to the moving direction of the guide rolling member 3 moving along the reference plane 6, and the guide rolling member 3 is rotatably mounted on the turnover member 5; the first magnetic block 51 is fixedly embedded in the turnover part 5, the second magnetic block 52 is fixedly embedded in the sliding sleeve part 222, and when the peripheral wall of the guide rolling part 3 is tangent to the reference plane 6, the first magnetic block 51 and the second magnetic block 52 are attracted.

The implementation principle of the embodiment is as follows: since the wall surface may have a problem of bulging, once the operator pushes the sander past the bulging position, especially when the guide roller 3 passes the bulging position, the entire sanding disc 13 is momentarily displaced towards the reference plane 6, resulting in a problem that a certain ground surface cannot be sanded; at this time, the operator can turn the turning member 5 and the guide rolling member 3 upwards together to separate the first magnetic block 51 from the second magnetic block 52, and then polish the ground by the polishing disc 13, so that the ground or the wall surface can be polished in a wider range, and the polishing dead angle is reduced.

EXAMPLE six

Referring to fig. 9 and 10, for the utility model discloses an auxiliary device of flat grinder, including auxiliary frame 2, auxiliary frame 2 includes main frame body 21, fixed connection in the connector 22 of main frame body 21 upper surface, connects in two universal wheels 23 of main frame body 21 lower surface, is fixed in the pole setting 24 of main frame body 21 upper surface, connects in the handle 25 of pole setting 24 tip. The face sander may be bolted to the interface 22.

The connecting body 22 comprises a mounting rod 221 fixed on the main frame body 21 and a sliding sleeve part 222 connected with the mounting rod 221 in a sliding way, and the sliding direction of the sliding sleeve part 222 is vertical to the reference plane 6; the auxiliary frame 2 is provided with a limiting part 26 for limiting the sliding of the guide rolling element 3, the limiting part 26 is a bolt, the upper end of the limiting part 26 is fixed with a force application head 27 convenient for an operator to manually rotate the limiting part 26, a kidney-shaped groove 28 penetrates through the outer peripheral wall of the sliding sleeve part 222, the length direction of the kidney-shaped groove 28 is parallel to the sliding direction of the sliding sleeve part 222, the lower end of the limiting part 26 penetrates through the kidney-shaped groove 28 and is connected to the mounting rod 221 in a threaded manner, and the force application head 27 abuts against the outer wall of the sliding sleeve part 222, so that the sliding sleeve part 222 is. A set of guide rollers 3 is rotatably connected to the sliding sleeve portion 222, the set of guide rollers 3 includes two rollers, and both guide rollers 3 are tangent to the reference plane 6.

The implementation principle of the embodiment is as follows: the plane polisher can be mounted on the auxiliary device through bolts, and through the auxiliary device, an operator can push the polisher towards the reference plane 6 in a blind manner until the guide rolling member 3 abuts against the reference plane 6, and the polishing disc 13 is just tangent to the reference plane 6 at the moment.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A plane polisher comprises a protective cover (1) and a polishing disc (13) arranged in the protective cover (1), wherein the protective cover (1) comprises a fixing part (11) and a detaching part (12), and part of the polishing disc (13) is positioned in the fixing part (11) and the other part of the polishing disc is positioned in the detaching part (12); the method is characterized in that: the grinding disc protection device is characterized by further comprising an auxiliary frame (2) connected to the protection cover (1), wherein at least one guide rolling piece (3) is installed on the auxiliary frame (2), the peripheral walls of all the guide rolling pieces (3) and the peripheral wall of the part, extending out of the fixing part (11), of the grinding disc (13) are tangent to the same plane, and the plane is a reference plane (6).

2. A flat grinder as claimed in claim 1, wherein: install a direction rolling member (3) on auxiliary frame (2), and the periphery wall profile of the dish of polishing (13) and the periphery wall profile of direction rolling member (3) be the projection of the plane of polishing of dish of polishing (13) and the internal tangent setting.

3. A flat grinder as claimed in claim 1, wherein: two guide rolling members (3) are mounted on the auxiliary frame (2), and the projection positions of the tangent points of the grinding disc (13) and the reference plane (6) in the grinding plane of the grinding disc (13) are located between the projection positions of the tangent points of the two guide rolling members (3) and the reference plane (6) in the grinding plane of the grinding disc (13).

4. A flat grinder as claimed in claim 1, wherein: three guide rolling members (3) are installed on the auxiliary frame (2), the projection of the outline of the outer peripheral wall of one guide rolling member (3) and the outline of the outer peripheral wall of the polishing disc (13) in the polishing plane of the polishing disc (13) is internally tangent, and the projection position of the tangent point of the polishing disc (13) and the reference plane (6) in the polishing plane of the polishing disc (13) is located between the projection positions of the tangent points of the other two guide rolling members (3) and the reference plane (6) in the polishing plane of the polishing disc (13).

5. A flat grinder as claimed in any one of claims 2 to 4, characterised in that: the guide rolling piece (3) is connected to the auxiliary frame (2) in a sliding mode, the sliding direction of the guide rolling piece (3) is perpendicular to the reference plane (6), and a limiting piece (26) used for limiting the guide rolling piece (3) to slide is installed on the auxiliary frame (2).

6. A flat grinder as claimed in claim 3 or 4, characterized in that: a synchronous telescopic connecting piece (4) is connected between the guide rolling pieces (3).

7. A flat grinder as claimed in claim 1, wherein: the guide roller (3) comprises two rollers.

8. A flat grinder as claimed in claim 1, wherein: the auxiliary frame (2) comprises a main frame body (21) and a connecting body (22), the connecting body (22) comprises an installation rod (221) fixed on the main frame body (21) and a sliding sleeve part (222) connected to the installation rod (221) in a sliding mode, and the sliding direction of the sliding sleeve part (222) is perpendicular to the reference plane (6); the sliding sleeve part (222) is rotatably connected with a turnover part (5), the turnover axis of the turnover part (5) is parallel to the movement direction of the guide rolling part (3) moving along the reference plane (6), and the guide rolling part (3) is arranged on the turnover part (5); the overturning part (5) is provided with a first magnetic block (51), the sliding sleeve part (222) is provided with a second magnetic block (52), and when the peripheral wall of the guide rolling part (3) is tangent to the reference plane (6), the first magnetic block (51) and the second magnetic block (52) are attracted.