CN216967346U - Hand-held type sander - Google Patents

Abstract

The utility model discloses a handheld sander, which belongs to the field of wall surface sanding equipment and comprises a handle and a sanding part, wherein the sanding part comprises a supporting part and a working part, the handle is fixedly connected with the end face of the supporting part, the working part is sleeved on the outer side wall of the supporting part, and the working part is in line-surface contact with a machined surface. The utility model aims to provide a handheld sander which can improve the flatness of a polished wall surface.

Description

Hand-held type sander

Technical Field

The utility model relates to the field of wall surface polishing equipment, in particular to a handheld polisher.

Background

When the existing construction such as building wall surfaces and the like is carried out, after the construction such as putty layers and the like is finished, the wall surfaces are required to be polished, so that the wall surfaces are smooth and flat, and the phenomena such as bubbles are avoided.

The hand-held sander of current is a manual sander of wall as that publication number is CN 201106276's patent discloses, it is including the handle that is used for gripping, handle one end and the body coupling of polishing, the body of polishing is the rectangle structure, during polishing, the wall is face contact with the body of polishing, when leading to polishing, need great strength just can exert sufficient frictional force to the wall, thereby accomplish and polish, simultaneously because for face contact, the contact surface of the body of polishing and wall is difficult to the complete average atress, lead to the difficult level and smooth of wall.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a handheld sander which can improve the flatness of a polished wall surface.

In order to achieve the purpose, the technical scheme adopted by the utility model is that the handheld sander comprises a handle and a sanding part, wherein the sanding part comprises a supporting part and a working part, the handle is fixedly connected with the end face of the supporting part, and the working part is sleeved on the outer side wall of the supporting part; when polishing, the working part is in line-surface contact with the processing surface to reduce the contact area and increase the pressure applied on the processing surface, and meanwhile, because the contact area is reduced, the stress is more uniform, thereby improving the polishing effect.

Furthermore, in the polishing process, after the working part is worn, the contact area with the processing surface needs to be replaced, and therefore the working part is in running fit with the supporting part, and the friction force between the working part and the supporting part is larger than that between the working part and the processing surface.

Further, in order to reduce use cost, the working part comprises a polishing layer and an inner ring which are sequentially arranged from outside to inside, the polishing layer is attached to the outer side of the inner ring, the polishing layer and the inner ring are detachably connected, and the inner wall of the inner ring is in close contact with the outer wall of the supporting part.

Further, in order to realize the quick assembly and disassembly of the polishing layer, the polishing layer is bonded with the inner ring.

Furthermore, the polishing layer is flocked abrasive paper, so that the polishing layer is convenient to purchase.

Furthermore, some bumps are inevitably arranged on the processing surfaces such as the wall surface which is not polished, so that polishing is smooth, the phenomena of blocking and the like are avoided when polishing is carried out, the friction force between the working part and the supporting part is increased simultaneously, and a circle of liner is arranged on the outer side wall of the supporting part.

Furthermore, the liner is fluff, which is convenient for purchase.

The utility model has the beneficial effects that: during polishing, the contact area of the working part and the processing surface is changed from the existing surface contact into the line surface contact, so that the operator only needs small force to apply enough force to the working part, thereby completing polishing; meanwhile, due to the fact that the contact area is reduced, stress of the working portion is more uniform, and therefore polishing effect is improved.

Drawings

FIG. 1 is a schematic top view of the present invention.

Fig. 2 is a side view schematic diagram of the polishing portion.

The text labels in the figures are represented as: 1. a handle; 2. a polishing part; 3. a support portion; 4. a working part; 5. polishing the layer; 6. an inner ring; 7. a liner.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

Embodiment 1, as shown in fig. 1-2, the structure of this embodiment is: a hand-held sander comprises a handle 1 and a sanding part 2, wherein the sanding part 2 comprises a supporting part 3 and a working part 4, the handle adopts a Y-shaped structure, the end faces of the handle 1 and the supporting part 3 are fixedly connected, the working part 4 is in rotating fit with the supporting part 3, and the working part 4 is sleeved on the outer side wall of the supporting part 3; the supporting part 3 can be a cylinder structure or a polygonal cylinder structure, the polygonal sides are larger than four sides, so that the width of the contact surface between the working part 4 and the processing surface is smaller than that of the working part 4, preferably, the width of the contact surface between the working part 4 and the processing surface is smaller than one fourth of the width of the working part 4, and when the grinding is performed, the working part 4 is in line-surface contact with the processing surface.

The specific working process is as follows: the processing surface is a wall surface, the supporting part 3 adopts a cylinder, and the working part 4 adopts sand paper wound on the supporting part 3; when polishing, hold the handle, press working part 4 on the wall, then remove along the wall to accomplish and polish, when the abrasive sand loss of abrasive paper one side is more, rotate working part 4 with the contact area of change with the wall.

Embodiment 2, as shown in fig. 1, the other structures of this embodiment are the same as those of embodiment 1, but in this embodiment, the working portion 4 is sequentially a polishing layer 5 and an inner ring 6 from outside to inside, and the polishing layer 5 and the inner ring 6 are detachably connected, the inner ring 6 in this embodiment is a tubular structure made of hard materials such as ABS plastics and PVC, an installation groove is provided on the inner ring 6, the polishing layer 5 is rolled by sand paper, a positioning column adapted to the installation groove is provided on the sand paper, in operation, the polishing layer 5 is wound on the inner ring 6, and then the positioning column is clamped in the installation groove, so as to complete the disassembly and assembly of the polishing layer 5 and the inner ring 6, and when the polishing area of the polishing layer 5 needs to be changed, only the inner ring 6 needs to be rotated by force.

Example 3, as shown in fig. 1, the other structure of this example is the same as that of example 1, but in this example, the working part 4 is a polishing layer 5 and an inner ring 6 in sequence from outside to inside, and the polishing layer 5 and the inner ring 6 are detachably connected, in this example, the inner ring 6 is made of a flexible material such as cloth, silicone, etc., the polishing layer 5 is rolled by sandpaper, and the inner ring 6 and the polishing layer 5 are connected by snap fasteners.

Embodiment 4, as shown in fig. 1-2, the other structures of this embodiment are the same as embodiment 3, but in this embodiment, the working portion 4 is a polishing layer 5 and an inner ring 6 from outside to inside in sequence, and the polishing layer 5 and the inner ring 6 are detachably connected, the inner ring 6 in this embodiment is made of a flexible material such as cloth and silica gel, the flexible material is wound on the supporting portion 2 to form a ring, two ends of the flexible material are bonded together by a hook-and-loop fastener, glue, and the like, the outer surface array of the inner ring 6 is provided with harder barbed bristles with hooks, and the polishing layer 5 is flocked abrasive paper.

During the use will polish the layer 5 with the mode of similar magic subsides directly glue on inner ring 6 can, polish the layer 5 use up the back, only need change new polish the layer 5 can, handle 1, the portion of polishing 2 and the equal used repeatedly of inner ring 6 to reduce use cost.

Embodiment 5, as shown in fig. 2, the other structure of this embodiment can refer to the above three embodiments, but in this embodiment, a ring of gasket 7 is disposed on the outer side wall of the supporting portion 3, and the gasket 7 is made of a flexible material such as rubber, which can be deformed when receiving a pressing force.

For convenient purchase, the pad 7 is fluffy to ensure that the friction force between the supporting part 3 and the working part 4 or the inner ring 6 is greater than the friction force between the working part 4 or the polishing layer 5 and the wall surface, so that the phenomenon that the working part 4 and the supporting part 3 rotate relatively during polishing is avoided, meanwhile, a roller brush on the existing market can be purchased, then the roller is fixed on the handle by using glass cement bonding and other modes, so that the roller cannot rotate, and then the polishing layer 5 and the inner ring 6 are assembled on the supporting part 3.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation 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 but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the above technical features may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the utility model using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the utility model.

Claims (7)

1. A hand-held sander comprises a handle (1) and a sanding part (2), and is characterized in that the sanding part (2) comprises a supporting part (3) and a working part (4), the handle (1) is fixedly connected with the end face of the supporting part (3), and the working part (4) is sleeved on the outer side wall of the supporting part (3); when in polishing, the working part (4) is in line-surface contact with the processing surface.

2. A hand-held sander as set forth in claim 1, characterized in that said working portion (4) is in rotational engagement with the support portion (3).

3. A hand-held sander according to claim 2, characterized in that the working portion (4) comprises, in order from the outside to the inside, a sanding layer (5) and an inner ring (6), the sanding layer (5) and the inner ring (6) being detachably connected.

4. A hand-held sander as set forth in claim 3, characterized in that said sanding layer (5) is bonded to the inner ring (6).

5. A hand-held sander as set forth in claim 4, wherein said sanding layer (5) is flocked sandpaper.

6. A hand-held sander as set forth in any of claims 1-5, characterized in that said support (3) has a ring of pads (7) on its outer side wall.

7. A hand-held sander as set forth in claim 6, characterized in that said pad (7) is a pile.

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