Grinding machine

Abstract

The utility model provides a grinding machine which comprises a first shell, a main pipe, a first supporting arm and a second supporting arm, the first supporting arm and the second supporting arm are connected to the first shell, the first supporting arm comprises a first end and a second end, the second supporting arm comprises a third end and a fourth end, and the first end and the third end are connected to the first shell. The first end part and the second end part are assembled together to form a barrel-shaped structure, the main pipe comprises a fifth end part and a sixth end part, the fifth end part is inserted into the barrel-shaped structure, the grinding machine further comprises a first seamless barrel-shaped handle, the first seamless barrel-shaped handle is arranged on the main pipe in a sleeving manner, and the first seamless barrel-shaped handle is connected to the barrel-shaped structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric power tools, in particular to a sander. BACKGROUND

[0002] The wall sander comprises a housing, a main pipe and left and right support arms connected to the housing, the left support arm comprises a first end and a second end, the right support arm comprises a third end and a fourth end, the first end of the left support arm and the third end of the right support arm are symmetrically connected to the two sides of the housing, the second end of the left support arm and the fourth end of the right support arm are assembled together to form a cylindrical structure, and the main pipe is inserted into the cylindrical structure. The wall sander comprises a holding handle, the holding handle is sleeved on the main pipe, and the holding handle is connected to the cylindrical structure. The holding handle is formed by assembling two half holding handles. In order to ensure that the size of the holding handle is not too large to cause discomfort, the holding handle has to be fixed without screws or with reduced screws. The large span of the holding handle causes a large joint, which seriously affects the production efficiency, product quality and appearance.

[0003] Therefore, it is necessary to provide a new sander. CONTENT OF THE INVENTION

[0004] The present application provides a sander with an attractive appearance, high product quality and comfortable use.

[0005] Specifically, the present application provides a sander, which comprises a first housing, a main pipe and first and second support arms connected to the first housing, the first support arm comprises a first end and a second end, the second support arm comprises a third end and a fourth end, the first end and the third end are connected to the first housing, the second end and the fourth end are assembled together to form a cylindrical structure, the main pipe comprises a fifth end and a sixth end, the fifth end is inserted into the cylindrical structure, and the sander further comprises a first seamless cylindrical handle, the first seamless cylindrical handle is sleeved on the main pipe, and the first seamless cylindrical handle is connected to the cylindrical structure.

[0006] Further, the first seamless cylindrical handle comprises a first holding portion and a first connecting portion located on one side of the first holding portion, the first connecting portion is inserted into the cylindrical structure, the first connecting portion comprises a clamping rib, the cylindrical structure comprises a matching groove recessed from an inner cavity wall, and the clamping rib is matched with the matching groove.

[0007] Further, the sander further comprises a first retaining member, the first seamless cylindrical handle further comprises a second connecting portion located on the other side of the first holding portion, the first retaining member is sleeved on the main pipe, and the first retaining member is retained in cooperation with the second connecting portion.

[0008] Further, the sander further comprises an extension pipe and a first connecting assembly, the first connecting assembly connects the main pipe and the extension pipe, the extension pipe comprises a seventh end and an eighth end, the seventh end is inserted into the sixth end; the first connecting assembly comprises a second seamless cylindrical handle, the second seamless cylindrical handle is sleeved on the sixth end.

[0009] Further, the second seamless cylindrical handle comprises a second holding portion and a third connecting portion located on one side of the second holding portion, the sander further comprises a second shell and an electronic assembly arranged in the second shell, the second shell is sleeved on the main pipe and connected to the third connecting portion.

[0010] Further, the second seamless cylindrical handle further comprises a fourth connecting portion located on the other side of the second holding portion, the sander further comprises a second holding member, the second holding member is sleeved on the extension pipe, and the second holding member is held and matched with the fourth connecting portion.

[0011] Further, the second holding member comprises a main body portion and a first matching portion located on one side of the main body portion, the first matching portion is inserted into the fourth connecting portion; the second holding member further comprises a clamping portion extending from the main body portion, the fourth connecting portion is provided with a clamping groove, and the clamping portion is clamped in the clamping groove.

[0012] Further, the second holding member further comprises a second matching portion located on the other side of the main body portion, the sander further comprises a locking member, the locking member is sleeved on the second matching portion, and the locking member and the second matching portion are screwed through threads.

[0013] Further, the sander further comprises a third seamless cylindrical handle, the third seamless cylindrical handle is sleeved on the eighth end.

[0014] Further, the sander further comprises a dust discharge pipe and a second connecting assembly, the second connecting assembly connects the dust discharge pipe and the extension pipe, the third seamless cylindrical handle comprises a third holding portion and a fifth connecting portion located on one side of the third holding portion, and the second connecting assembly is connected to the fifth connecting portion.

[0015] In the application, the second end of the first supporting arm and the fourth end of the second supporting arm are assembled together to form a cylindrical structure, the first seamless cylindrical handle is sleeved on the main pipe and connected to the cylindrical structure, the first seamless cylindrical handle comprises a holding portion, and the first seamless cylindrical handle adopts a cylindrical overall structure, so that there is no joint problem, the production efficiency and product quality are greatly improved, and the appearance is beautified. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the sander of the application.

[0017] Figure 2 is Figure 1 an enlarged view of circled portion A.

[0018] Figure 3 is Figure 1 an enlarged view of circled portion B.

[0019] Figure 4 is Figure 1 an enlarged view of circled portion C.

[0020] Figure 5 is Figure 1 a perspective exploded view of the sander.

[0021] Figure 6 is Figure 5 an enlarged view of circled portion D.

[0022] Figure 7 is Figure 5 an enlarged view of circled portion E.

[0023] Figure 8 is Figure 5 an enlarged view of circled portion F.

[0024] Figure 9 is Figure 5 a further perspective exploded view of the sander.

[0025] Figure 10 is Figure 9 an enlarged view of circled portion G.

[0026] Figure 11 is Figure 9 an enlarged view of circled portion H.

[0027] Figure 12 is Figure 9 an enlarged view of circled portion I. DETAILED DESCRIPTION

[0028] The exemplary embodiments will be described in detail herein with reference to the attached drawings, wherein like reference characters refer to like elements throughout. The following detailed description is not intended to be understood in a restrictive sense, and is presented as an example of the application to provide a complete and enabling disclosure of the application.

[0029] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. Unless otherwise defined, all terms of art used herein have the same meaning as commonly understood by one of ordinary skill in the art in the field of the present application. As used in the present application, the articles "a", "an", and "the" are intended to mean that there are one or more of the entities mentioned. The use of the term "one" or "the" preceding an element or intervention is understood as indicating that there is one or more of the elements or interventions. As used in the present application, the article "a" is intended to be synonymous with "one", "at least one", and / or "one or more". Except as otherwise expressly provided herein, single skill in the art would understand the context of use of terms such as "front", "back", "upper", "lower", "beneath", "below", "above", "upper", "down", "up", "right", "left", "horizontal", "vertical", "top", "bottom", "lateral", "distal", "proximal", and the like, utilize the normal, meaning of such terms to refer to the appropriate orientation in use or to the position of an item described as in a claim. The terms "comprise", "comprises" and "comprising" and the like can have the meaning ascribed to them in U.S. patent law and can mean including, but not limited to, one or more elements facilitating the various features and / or options described.

[0030] Please refer to Figures 1 to 12The application provides a sander 100, which comprises a first housing 10, a main pipe 21, a first supporting arm 31 and a second supporting arm 32 connected to the first housing 10, the first supporting arm 31 comprises a first end 311 and a second end 312, the second supporting arm 32 comprises a third end 321 and a fourth end 322, the first end 311 and the third end 321 are connected to the first housing 10, and the second end 312 and the fourth end 322 are assembled together to form a cylindrical structure 40. The main pipe 21 comprises a fifth end 211 and a sixth end 212, and the fifth end 211 is inserted into the cylindrical structure 40. The sander 100 further comprises a first seamless cylindrical handle 51, the first seamless cylindrical handle 51 is sleeved on the main pipe 21, and the first seamless cylindrical handle 51 is connected to the cylindrical structure 40. The sander 100 further comprises an extension pipe 22 and a first connecting assembly 61, the first connecting assembly 61 connects the main pipe 21 and the extension pipe 22. The extension pipe 22 comprises a seventh end 221 and an eighth end 222, and the seventh end 221 is inserted into the sixth end 212. The first connecting assembly 61 comprises a second seamless cylindrical handle 52, and the second seamless cylindrical handle 52 is sleeved on the sixth end 212. The sander 100 further comprises a third seamless cylindrical handle 53, and the third seamless cylindrical handle 53 is sleeved on the eighth end 222. The sander 100 further comprises a dust outlet pipe 23 and a second connecting assembly 62, and the second connecting assembly 62 connects the dust outlet pipe 23 and the extension pipe 22. The third seamless cylindrical handle 53 comprises a third holding part 531 and a fifth connecting part 532 located on one side of the third holding part 531, and the second connecting assembly 62 is connected to the fifth connecting part 532.

[0031] The first seamless cylindrical handle 51 comprises a first holding part 510 and a first connecting part 511 located on one side of the first holding part 510, the first connecting part 511 is inserted into the cylindrical structure 40, the first connecting part 511 comprises a clamping rib 513, the cylindrical structure 40 comprises a matching groove 41 formed by recessing an inner cavity wall, and the clamping rib 513 is matched with the matching groove 41. The sander 100 further comprises a first fixing piece 71, and the first seamless cylindrical handle 51 further comprises a second connecting part 512 located on the other side of the first holding part 510, the first fixing piece 71 is sleeved on the main pipe 21, and the first fixing piece 71 fixes the second connecting part 512.

[0032] The second seamless cylindrical handle 52 comprises a second holding portion 520 and a third connecting portion 521 located at one side of the second holding portion 520, and the first connecting assembly 61 further comprises a second shell 80 and an electronic assembly arranged in the second shell 80, the second shell 80 is sleeved on the main pipe 21 and connected to the third connecting portion 521. The second seamless cylindrical handle 52 further comprises a fourth connecting portion 522 located at the other side of the second holding portion 520, and the first connecting assembly 61 further comprises a second holding member 72, the second holding member 72 is sleeved on the extension pipe 22 and held in cooperation with the fourth connecting portion 522. The second holding member 72 comprises a main body portion 720 and a first cooperating portion 721 located at one side of the main body portion 720, and the first cooperating portion 721 is inserted into the fourth connecting portion 522. The second holding member 72 further comprises a clamping portion 723 extending from the main body portion 720, and the fourth connecting portion 522 is provided with a clamping groove 523, and the clamping portion 723 is clamped in the clamping groove 523. The second holding member 72 further comprises a second cooperating portion 722 located at the other side of the main body portion 720, and the first connecting assembly 61 further comprises a locking member 90, the locking member 90 is sleeved on the second cooperating portion 722, and the locking member 90 and the second cooperating portion 722 are screwed through threads. The second shell 80 is assembled by two half shells.

[0033] In the present application, the second end portion 312 of the first supporting arm 31 and the fourth end portion 322 of the second supporting arm 32 are assembled together to form a cylindrical structure 40, the first seamless cylindrical handle 51 is sleeved on the main pipe 21 and connected to the cylindrical structure 40, the second seamless cylindrical handle 52 is sleeved on the end of the main pipe 21 away from the cylindrical structure 40, and the third seamless cylindrical handle 53 is sleeved on the end of the extension pipe 22 away from the main pipe 21. The first seamless cylindrical handle 51, the second seamless cylindrical handle 52 and the third seamless cylindrical handle 53 all comprise holding portions, and all adopt a cylindrical integral structure, so that there is no joint problem, the production efficiency and product quality are greatly improved, and the appearance is beautified.

[0034] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the preferred embodiment has been disclosed as above, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A sander comprising a first housing, a main pipe, and a first support arm and a second support arm connected to the first housing, the first support arm comprising a first end and a second end, the second support arm comprising a third end and a fourth end, the first end and the third end being connected to the first housing, the second end and the fourth end being assembled together to form a cylindrical structure, the main pipe comprising a fifth end and a sixth end, the fifth end being inserted into the cylindrical structure, characterized in that, The sander further comprises a first seamless cylindrical handle sleeved on the main pipe, and the first seamless cylindrical handle is connected to the cylindrical structure.

2. The sander of claim 1, wherein, The first seamless cylindrical handle comprises a first holding portion and a first connecting portion located on one side of the first holding portion, the first connecting portion is inserted into the cylindrical structure, and the first connecting portion comprises a clamping rib, and the cylindrical structure comprises a matching groove recessed from an inner cavity wall, and the clamping rib is matched with the matching groove.

3. The sander of claim 2, wherein, The sander further comprises a first retaining member, and the first seamless cylindrical handle further comprises a second connecting portion located on the other side of the first holding portion, the first retaining member is sleeved on the main pipe, and the first retaining member is retained and matched with the second connecting portion.

4. The sander of claim 1, wherein, The sander further comprises an extension pipe and a first connecting assembly, the first connecting assembly connects the main pipe and the extension pipe, the extension pipe comprises a seventh end portion and an eighth end portion, the seventh end portion is inserted into the sixth end portion, and the first connecting assembly comprises a second seamless cylindrical handle, and the second seamless cylindrical handle is sleeved on the sixth end portion.

5. The sander of claim 4, wherein, The second seamless cylindrical handle comprises a second holding portion and a third connecting portion located on one side of the second holding portion, the sander further comprises a second housing and an electronic assembly arranged in the second housing, the second housing is sleeved on the main pipe and connected to the third connecting portion.

6. The sander of claim 5, wherein, The second seamless cylindrical handle further comprises a fourth connecting portion located on the other side of the second holding portion, and the sander further comprises a second retaining member, the second retaining member is sleeved on the extension pipe, and the second retaining member is retained and matched with the fourth connecting portion.

7. The sander of claim 6, wherein, The second retaining member comprises a main body portion and a first matching portion located on one side of the main body portion, the first matching portion is inserted into the fourth connecting portion, the second retaining member further comprises a clamping portion extending from the main body portion, the fourth connecting portion is provided with a clamping groove, and the clamping portion is clamped in the clamping groove.

8. The sander of claim 7, wherein, The second retaining member further comprises a second matching portion located on the other side of the main body portion, and the sander further comprises a locking member, the locking member is sleeved on the second matching portion, and the locking member and the second matching portion are screwed through threads.

9. The sander of claim 4, wherein, The sander further comprises a third seamless cylindrical handle, and the third seamless cylindrical handle is sleeved on the eighth end portion.

10. The sander of claim 9, wherein, The sander further comprises a dust outlet pipe and a second connecting assembly, the second connecting assembly connects the dust outlet pipe and the extension pipe, the third seamless cylindrical handle comprises a third holding portion and a fifth connecting portion located on one side of the third holding portion, and the second connecting assembly is connected to the fifth connecting portion.

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