Assembly of a power tool and an auxiliary handle assembly

Abstract

The application provides a combination of a power tool and an auxiliary handle assembly, the auxiliary handle assembly being detachable from the power tool, the power tool comprising a gear box, the gear box comprising a housing and a gear assembly installed in the housing, the housing comprising a front shell and a main shell, the front shell comprising a first protrusion and a second protrusion, the first protrusion being provided with a first through hole, the second protrusion being provided with a second through hole, the main shell being provided with a first fixing hole and a second fixing hole, the gear box further comprising a first fixing member and a second fixing member, the first fixing member being fixed in the first fixing hole after passing through the first through hole, the second fixing member being fixed in the second fixing hole after passing through the second through hole, the auxiliary handle assembly comprising a first clamping jaw and a second clamping jaw, the first clamping jaw being provided with a first positioning groove, the second clamping jaw being provided with a second positioning groove, the first protrusion being positioned in the first positioning groove, and the second protrusion being positioned in the second positioning groove.

Description

Technical Field

[0001] This application relates to the field of power tool technology. Background Technology

[0002] Electric drills are drilling tools powered by electricity. They are a common product among power tools and also the most in-demand power tool product. The working principle of an electric drill is that the electric motor drives the transmission mechanism (such as gears or connecting rods) to transmit power to the drill bit, causing it to rotate and scrape the surface of the object to achieve the drilling function. When workers hold an electric drill with one hand for a long time, the handle will cause certain pain or damage to the worker's hand, affecting the worker's mood and reducing the quality of work. Therefore, auxiliary handle components are often provided. The auxiliary handle components are usually installed in the gearbox of the electric drill. The installation of auxiliary handle components in the prior art usually has the following problems: (1) the size of the positioning jaw of the auxiliary handle component is too large, and (2) the size of the positioning jaw of the auxiliary handle component is too small and cannot withstand too much force.

[0003] Therefore, it is necessary to provide a new combination of power tools and auxiliary handle components. Utility Model Content

[0004] This application provides an assembly of a power tool and an auxiliary handle component that has a long lifespan and low cost.

[0005] Specifically, this application provides an assembly of a power tool and an auxiliary handle assembly, the auxiliary handle assembly being detachable from the power tool. The power tool includes a gearbox, the gearbox including a housing and a gear assembly installed within the housing. The housing includes a front shell and a main shell. The front shell includes a first protrusion and a second protrusion. The first protrusion has a first through hole, and the second protrusion has a second through hole. The main shell has a first retaining hole and a second retaining hole. The gearbox also includes a first fixing member and a second fixing member. The first fixing member passes through the first through hole and is fixed in the first retaining hole, and the second fixing member passes through the second through hole and is fixed in the second retaining hole. The auxiliary handle assembly includes a first pawl and a second pawl. The first pawl has a first positioning groove, and the second pawl has a second positioning groove. The first protrusion is positioned within the first positioning groove, and the second protrusion is positioned within the second positioning groove.

[0006] Furthermore, the auxiliary handle assembly also includes a fixed shaft and a spring, the first pawl and the second pawl are connected through the fixed shaft, and the spring is sleeved on the fixed shaft and located between the first pawl and the second pawl.

[0007] Furthermore, the first chuck includes a first base and a first claw portion, the second chuck includes a second base and a second claw portion, the first positioning groove is disposed on the first claw portion, and the second positioning groove is disposed on the second claw portion; the first base is provided with a first receiving groove, the second base is provided with a second receiving groove, and the auxiliary handle assembly further includes a guide pin, the two ends of the guide pin are respectively received in the first receiving groove and the second receiving groove, and the guide pin is located on the side of the fixed shaft opposite to the power tool.

[0008] Furthermore, the first base is provided with a first through groove, and the second base is provided with a second through groove. The fixed shaft includes a first end, a second end, and an intermediate part located between the first end and the second end. The first end passes through the second through groove and is fixed in the first through groove. The auxiliary handle assembly also includes a gripping part, which is installed on the second end.

[0009] Furthermore, the outer surface of the first end is provided with a first thread, and the inner wall of the first through groove is provided with a second thread, and the first thread and the second thread cooperate with each other.

[0010] Furthermore, the auxiliary handle assembly also includes a bolt, the first end of which is provided with a threaded hole, the end face of the first end being recessed to form the threaded hole, and the bolt engaging with the threaded hole.

[0011] Furthermore, the first through groove is provided with a first step portion, the second through groove is provided with a second step portion, and the spring includes a first end and a second end. The first end is received in the first through groove and abuts against the first step portion, and the second end is received in the second through groove and abuts against the second step portion.

[0012] Furthermore, the front shell also includes a third protrusion located between the first protrusion and the second protrusion, a first stop portion is provided between the first protrusion and the third protrusion, a second stop portion is provided between the second protrusion and the third protrusion, the first claw includes a first abutting portion, the second claw includes a second abutting portion, the first abutting portion cooperates with the first stop portion, and the second abutting portion cooperates with the second stop portion.

[0013] Furthermore, the first claw also includes a first hook portion, and the second claw also includes a second hook portion. A first positioning groove is formed between the first abutting portion and the first hook portion, and a second positioning groove is formed between the second abutting portion and the second hook portion.

[0014] Furthermore, the main housing is also provided with a through groove, and the gear assembly includes a gear shifting component, which passes through the through groove and is exposed outside the main housing.

[0015] In this application, the front housing includes a first protrusion and a second protrusion. The first protrusion has a first through hole, and the second protrusion has a second through hole. The first through hole allows a first fixing member to pass through and be fixed to the main housing, and the second through hole allows a second fixing member to pass through and be fixed to the main housing. The first protrusion is used for positioning the first pawl, and the second protrusion is used for positioning the second pawl. The size is moderate, the force is reliable, and the whole machine is stable during use. The guide pin is located on the side of the fixed shaft away from the power tool, so it does not affect the user's operation of the gearbox gear shifting component. The whole machine structure is lightweight and stable. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the power tool and auxiliary handle assembly of this application.

[0017] Figure 2 yes Figure 1 Enlarged view of the circled area shown.

[0018] Figure 3 yes Figure 1 An exploded perspective view of the assembly shown.

[0019] Figure 4 yes Figure 3 Enlarged view of the circled area shown.

[0020] Figure 5 yes Figure 1 A structural schematic diagram of the assembly shown from another perspective.

[0021] Figure 6 yes Figure 5 Enlarged view of the circled area shown.

[0022] Figure 7 yes Figure 1 The diagram shows another view of the assembly.

[0023] Figure 8 yes Figure 7 A sectional view of the assembly shown.

[0024] Figure 9 yes Figure 8 Enlarged view of the circled area shown.

[0025] Figure 10 yes Figure 3 A further exploded perspective view of the assembly shown.

[0026] Figure 11 yes Figure 10 Enlarged view of the circled area shown.

[0027] Figure 12 yes Figure 1 The structural schematic diagram of the assembly shown from another perspective. Detailed Implementation

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application.

[0029] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper" and similar terms are for ease of description only and are not limited to a location or spatial orientation. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms "connected" or "linked" and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0030] Please combine Figures 1 to 12This application provides an assembly of a power tool 100 and an auxiliary handle assembly 200, the auxiliary handle assembly 200 being detachable from the power tool 100. The power tool 100 includes a gearbox 10, the gearbox 10 including a housing 11 and a gear assembly 12 mounted within the housing 11. The housing 11 includes a front housing 13 and a main housing 14, the main housing 14 having a through slot 140. The gear assembly 12 includes a gear shifter 120, the gear shifter 120 passing through the through slot 140 and exposed outside the main housing 14. The front housing 13 includes a first protrusion 15 and a second protrusion 16. The first protrusion 15 is provided with a first through hole 150, and the second protrusion 16 is provided with a second through hole 160. The main housing 14 is provided with a first retaining hole 141 and a second retaining hole 142. The gearbox 10 also includes a first fixing member 17 and a second fixing member 18. The first fixing member 17 passes through the first through hole 150 and is fixed in the first retaining hole 141. The second fixing member 18 passes through the second through hole 160 and is fixed in the second retaining hole 142.

[0031] The auxiliary handle assembly 200 includes a first claw 21 and a second claw 22. The first claw 21 has a first positioning groove 210, and the second claw 22 has a second positioning groove 220. A first protrusion 15 is positioned within the first positioning groove 210, and a second protrusion 16 is positioned within the second positioning groove 220. The front housing 13 also includes a third protrusion 19 located between the first protrusion 15 and the second protrusion 16. A first stop 131 is provided between the first protrusion 15 and the third protrusion 19, and a second stop 132 is provided between the second protrusion 16 and the third protrusion 19. The first claw 21 includes a first abutment 216, and the second claw 22 includes a second abutment 226. The first abutment 216 engages with the first stop 131, and the second abutment 226 engages with the second stop 132. The first claw 21 also includes a first hook portion 217, and the second claw 22 also includes a second hook portion 227. The first positioning groove 210 is formed between the first abutment portion 216 and the first hook portion 217, and the second positioning groove 220 is formed between the second abutment portion 226 and the second hook portion 227.

[0032] The auxiliary handle assembly 200 also includes a fixed shaft 23 and a spring 24. The first pawl 21 and the second pawl 22 are connected by the fixed shaft 23. The spring 24 is sleeved on the fixed shaft 23 and located between the first pawl 21 and the second pawl 22. The first pawl 21 includes a first base 211 and a first pawl portion 212. The second pawl 22 includes a second base 221 and a second pawl portion 222. The first positioning groove 210 is disposed in the first pawl portion 212, and the second positioning groove 220 is disposed in the second pawl portion 222. The first base 211 is provided with a first through groove 213, and the second base 221 is provided with a second through groove 223. The fixed shaft 23 includes a first end portion 231, a second end portion 232, and an intermediate portion 233 located between the first end portion 231 and the second end portion 232. The first end portion 231 passes through the second through groove 223 and is fixed in the first through groove 213. The outer surface of the first end 231 is provided with a first thread, and the inner wall of the first through groove 213 is provided with a second thread, the first thread and the second thread engaging. The auxiliary handle assembly 200 also includes a bolt 26, the first end 231 is provided with a threaded hole 230, the end face of the first end 231 is recessed to form the threaded hole 230, and the bolt 26 engages with the threaded hole 230. The auxiliary handle assembly 200 also includes a grip portion 27 for the user to hold, the grip portion 27 being mounted on the second end 232. The first through groove 213 is provided with a first step portion 214, the second through groove 223 is provided with a second step portion 224, the spring 24 includes a first end 241 and a second end 242, the first end 241 is received in the first through groove 213 and abuts against the first step portion 214, and the second end 242 is received in the second through groove 223 and abuts against the second step portion 224.

[0033] The first base 211 is provided with a first receiving groove 215, the second base 221 is provided with a second receiving groove 225, and the auxiliary handle assembly 200 also includes a guide pin 25. The two ends of the guide pin 25 are respectively received in the first receiving groove 215 and the second receiving groove 225. The guide pin 25 is located on the side of the fixed shaft 23 away from the power tool 100.

[0034] In this application, the front shell 13 includes a first protrusion 15 and a second protrusion 16. The first protrusion 15 is provided with a first through hole 150, and the second protrusion 16 is provided with a second through hole 160. The first through hole 150 allows the first fixing member 17 to pass through and be fixed to the main shell 14, and the second through hole 160 allows the second fixing member 18 to pass through and be fixed to the main shell 14. The first protrusion 15 is used for positioning of the first pawl 21, and the second protrusion 16 is used for positioning of the second pawl 22. The size is moderate, the force is reliable, and the whole machine is stable during use. The guide pin 25 is located on the side of the fixed shaft 23 away from the power tool 100, so it does not affect the user's operation of the gear shifting member 120 of the gearbox 10. The whole machine structure is lightweight and stable.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An assembly of a power tool and an auxiliary handle assembly, the auxiliary handle assembly being detachable from the power tool, the power tool including a gearbox, the gearbox including a housing and a gear assembly mounted within the housing, characterized in that... The housing includes a front shell and a main shell. The front shell includes a first protrusion and a second protrusion. The first protrusion has a first through hole, and the second protrusion has a second through hole. The main shell has a first retaining hole and a second retaining hole. The gearbox also includes a first fixing member and a second fixing member. The first fixing member passes through the first through hole and is fixed in the first retaining hole. The second fixing member passes through the second through hole and is fixed in the second retaining hole. The auxiliary handle assembly includes a first pawl and a second pawl. The first pawl has a first positioning groove, and the second pawl has a second positioning groove. The first protrusion is positioned in the first positioning groove, and the second protrusion is positioned in the second positioning groove.

2. The assembly according to claim 1, characterized in that, The auxiliary handle assembly also includes a fixed shaft and a spring. The first pawl and the second pawl are connected through the fixed shaft, and the spring is sleeved on the fixed shaft and located between the first pawl and the second pawl.

3. The assembly according to claim 2, characterized in that, The first chuck includes a first base and a first claw portion, and the second chuck includes a second base and a second claw portion. The first positioning groove is disposed on the first claw portion, and the second positioning groove is disposed on the second claw portion. The first base is provided with a first receiving groove, and the second base is provided with a second receiving groove. The auxiliary handle assembly also includes a guide pin, the two ends of which are respectively received in the first receiving groove and the second receiving groove. The guide pin is located on the side of the fixed shaft opposite to the power tool.

4. The assembly according to claim 3, characterized in that, The first base is further provided with a first through groove, and the second base is further provided with a second through groove. The fixed shaft includes a first end, a second end, and an intermediate part located between the first end and the second end. The first end passes through the second through groove and is fixed in the first through groove. The auxiliary handle assembly also includes a gripping part, which is installed on the second end.

5. The assembly according to claim 4, characterized in that, The outer surface of the first end is provided with a first thread, and the inner wall of the first through groove is provided with a second thread, and the first thread and the second thread cooperate with each other.

6. The assembly according to claim 5, characterized in that, The auxiliary handle assembly also includes a bolt, the first end of which has a threaded hole, the end face of the first end being recessed to form the threaded hole, and the bolt engaging with the threaded hole.

7. The assembly according to claim 4, characterized in that, The first through groove has a first step portion, and the second through groove has a second step portion. The spring includes a first end and a second end. The first end is received in the first through groove and abuts against the first step portion, and the second end is received in the second through groove and abuts against the second step portion.

8. The assembly according to claim 1, characterized in that, The front housing also includes a third protrusion located between the first protrusion and the second protrusion. A first stop is provided between the first protrusion and the third protrusion, and a second stop is provided between the second protrusion and the third protrusion. The first claw includes a first abutting portion, and the second claw includes a second abutting portion. The first abutting portion cooperates with the first stop, and the second abutting portion cooperates with the second stop.

9. The assembly according to claim 8, characterized in that, The first claw further includes a first hook portion, and the second claw further includes a second hook portion. A first positioning groove is formed between the first abutting portion and the first hook portion, and a second positioning groove is formed between the second abutting portion and the second hook portion.

10. The assembly according to claim 1, characterized in that, The main housing is also provided with a through groove, and the gear assembly includes a gear shifting component, which passes through the through groove and is exposed outside the main housing.

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