Angle-adjustable handle connecting structure of electric tool
By adopting an adjustable angle handle connection structure on the polishing machine, and utilizing the positioning block to cooperate with the protrusion and recess of the handle, the problem of the handle position not being adjustable in the prior art is solved, realizing reliable positioning and convenient adjustment of the handle, and improving the user experience.
Patent Information
- Application Number
- CN202520331141.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The auxiliary handle and gearbox of the existing polishing machine are integrated into one structure, which makes the mold complex and the handle position cannot be adjusted, causing inconvenience to users.
The adjustable angle handle connection structure uses a positioning block that engages with the protrusions and recesses of the handle, combined with a locking screw, to achieve reliable handle positioning, allowing users to adjust and lock the handle position as needed.
It achieves reliable locking of the handle in the user's desired position, simplifies the adjustment process, and improves the user experience.
Smart Images
Figure CN223834205U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to power tools, and more particularly to the handle connection structure of power tools. Background Technology
[0002] The auxiliary handle of the existing polishing machine is an integral part of the aluminum gearbox, which not only makes the mold structure more complex, but also makes it impossible to adjust the working angle of the auxiliary handle according to the user's needs, causing many inconveniences for the user. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide an adjustable angle handle connection structure for power tools, which can rotate and position the handle to the position required by the user, and the structure is simple and the positioning is reliable.
[0004] The adjustable angle handle connection structure of the power tool according to this utility model embodiment includes a housing and a handle; a first threaded hole and a second threaded hole are respectively provided on a first side and a second side of the housing, and the first side and the second side are opposite sides; a first mounting through hole and a second mounting through hole are respectively provided on a first end and a second mounting through hole; the adjustable angle handle connection structure includes a positioning block, a first locking screw and a second locking screw, one of the opposite surfaces of the positioning block and the first end of the handle is provided with a plurality of protrusions, and the other of the opposite surfaces of the positioning block and the first end of the handle is provided with a plurality of recesses that respectively engage with the plurality of protrusions; the positioning block is helically connected to the first threaded hole, and the first locking screw passes through the first mounting through hole and is helically connected to the positioning block, or the positioning block is installed on the first side of the housing in a non-radial rotatable manner, and the first locking screw passes through the first mounting through hole and the positioning block in sequence and is helically connected to the first threaded hole; the plurality of protrusions are respectively embedded in the plurality of recesses; the second locking screw passes through the second mounting through hole and is helically connected to the second threaded hole.
[0005] This utility model has at least the following advantages:
[0006] 1. After adopting the above technical solution, since the positioning block cannot rotate relative to the housing, and the positioning block and the first end of the handle are connected by multiple protrusions and multiple recesses, the handle cannot rotate relative to the positioning block, so the handle can be reliably locked in the position desired by the user, which facilitates the user's use of the power tool.
[0007] 2. When adjusting the position of the handle, simply loosen the first and second locking screws, then rotate the handle to the desired position, and finally tighten the first and second locking screws. It is very convenient to use. Attached Figure Description
[0008] Figure 1 and Figure 2 Cross-sectional and exploded views of the adjustable angle handle connection structure according to the first embodiment of the present invention are shown respectively.
[0009] Figure 3 and Figure 4 A cross-sectional view and a top view of the positioning block according to the first embodiment of the present invention are shown respectively.
[0010] Figures 5 to 7 The diagrams show the state of the polishing machine using the adjustable handle of the first embodiment of the present invention when the handle is in the vertical position, the horizontal position, and the 45° position.
[0011] Figure 8 and Figure 9 Cross-sectional and exploded views of the adjustable angle handle connection structure of the power tool according to the second embodiment of the present invention are shown respectively.
[0012] Figure 10 and Figure 11 A perspective view and a side view of the positioning block according to the second embodiment of the present invention are shown respectively. Detailed Implementation
[0013] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0014] Figure 1 and Figure 2 An adjustable angle handle connection structure for a power tool according to a first embodiment of the present invention is shown. Please refer to... Figure 1 and Figure 2 The adjustable angle handle connection structure of the power tool according to the first embodiment of the present utility model includes a housing 1, a handle 2, a positioning block 3, a first locking screw 41 and a second locking screw 42.
[0015] The first and second sides of the housing 1 are respectively provided with a first threaded hole 11 and a second threaded hole 12, and the first and second sides are opposite sides. The first and second ends of the handle 2 are respectively provided with a first mounting through hole 21 and a second mounting through hole 22.
[0016] One of the opposing surfaces of the positioning block 3 and the first end of the handle 2 is provided with a plurality of protrusions, and the other of the opposing surfaces of the positioning block 3 and the first end of the handle 2 is provided with a plurality of recesses that respectively engage with the plurality of protrusions.
[0017] Please combine Figure 3 and Figure 4As shown, in this embodiment, the positioning block 3 includes a hollow cylindrical portion 31 and an annular flange 32 disposed at the rear end of the cylindrical portion 31. The side of the front end of the cylindrical portion 31 has an external thread 311, and the rear end wall of the central hole 310 of the cylindrical portion has an internal thread 312. Multiple protrusions 33 are disposed on the rear end face of the annular flange 32, and multiple recesses 23 are disposed on the end face of the first end of the handle 2 facing the annular flange 32. The front end of the cylindrical portion 31 of the positioning block 3 is screwed into the first threaded hole 11, and the first locking screw 41 extends into the central hole 310 of the cylindrical portion 31 and is screwed into the wall of the central hole 310 of the cylindrical portion 31. The multiple protrusions 33 are respectively embedded in the multiple recesses 23.
[0018] The second locking screw 42 passes through the second mounting through hole 22 and is screwed into the second threaded hole 12.
[0019] In this embodiment, multiple protrusions 33 are evenly distributed along the same circumference. Each protrusion 33 is a spherical protrusion, and correspondingly, each recess 23 is a spherical groove.
[0020] Furthermore, the handle 2 includes an inverted U-shaped handle post 2a and an L-shaped connector 2b. One end of the horizontal side 25 of the L-shaped connector 2b is connected to the first end of the inverted U-shaped handle post 2a, and the other end of the horizontal side 25 of the L-shaped connector is connected to the bottom end of the vertical side 26 of the L-shaped connector. A first mounting through hole 21 and a plurality of recesses 23 are provided on the vertical side 26 of the L-shaped connector, and a second mounting through hole 22 is provided on the second end of the inverted U-shaped handle post 2a.
[0021] In a specific application example, the aforementioned power tool is a polishing machine, the aforementioned housing 1 is the gearbox housing of the polishing machine, and the aforementioned handle 2 is the auxiliary handle of the polishing machine. Figures 5 to 7 The diagrams show the polishing machine 100 with the adjustable handle according to the first embodiment of this invention in three positions: vertical, horizontal, and 45°. To adjust the position of the handle 2, simply loosen the first locking screw 41 and the second locking screw 42, rotate the handle 2 to the desired position, and then tighten the first locking screw 41 and the second locking screw 42. After the first locking screw 41 and the second locking screw 42 are tightened, the positioning block 3 cannot rotate relative to the housing 1. Furthermore, the positioning block 3 and the first end of the handle 2 are connected by multiple protrusions and recesses, thus preventing the handle 2 from rotating relative to the positioning block 3. This reliably locks the handle 2 in the desired position.
[0022] Figure 8 and Figure 9 Cross-sectional and exploded views of the adjustable angle handle connection structure of the power tool according to the second embodiment of the present invention are shown respectively. Figure 10 and Figure 11 A perspective view and a side view of the positioning block according to the second embodiment of the present invention are shown respectively. Please refer to... Figures 8 to 11 As shown, the main difference between the adjustable angle handle connection structure of the second embodiment of this utility model and the first embodiment lies in the structure of the positioning block and the connection structure between the positioning block and the housing 1.
[0023] In the second embodiment, the positioning block 3a includes a positioning block body 35 and a positioning protrusion 36 protruding from the positioning block body 35 toward the first side of the housing 1. The first side of the housing 1 has an annular protrusion 16 surrounding the first threaded hole 11. The side of the annular protrusion 16 is provided with a first stop and a second stop (not shown in the figure). The top of the annular protrusion 16 abuts against the positioning block body 35, and the positioning protrusion 36 extends between the first stop and the second stop, so that the positioning block 3a is installed on the first side of the housing 1 in a manner that prevents radial rotation. The first locking screw 41 passes through the first mounting through hole 21 and the positioning block 3a in sequence, and is screwed to the first threaded hole 11. The plurality of protrusions 33a on the positioning part 3a are respectively embedded in the plurality of recesses 23 of the handle 2. The second locking screw 42 passes through the second mounting through hole 22 on the handle 2 and is screwed to the second threaded hole 12 of the housing 1.
[0024] In this embodiment, the positioning protrusion 36 is arc-shaped.
[0025] The adjustable angle handle connection structure of this utility model can adjust the angle position of the handle according to the user's needs, and can lock the handle to the user's desired position, thereby facilitating the user's use of power tools.
[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. An adjustable angle handle connection structure for a power tool, comprising a housing and a handle; characterized in that, The first and second sides of the housing are respectively provided with a first threaded hole and a second threaded hole, and the first side and the second side are opposite sides; the first end and the second end of the handle are respectively provided with a first mounting through hole and a second mounting through hole. The adjustable angle handle connection structure includes a positioning block, a first locking screw and a second locking screw. One of the opposing surfaces of the positioning block and the first end of the handle is provided with a plurality of protrusions, and the other of the opposing surfaces of the positioning block and the first end of the handle is provided with a plurality of recesses that respectively engage with the plurality of protrusions. The positioning block is helically connected to the first threaded hole, and the first locking screw passes through the first mounting through hole and is helically connected to the positioning block; or, the positioning block is installed on the first side of the housing in a non-radial rotatable manner, and the first locking screw passes through the first mounting through hole and the positioning block in sequence and is helically connected to the first threaded hole. The plurality of protrusions are respectively embedded in the plurality of recesses in a one-to-one correspondence; The second locking screw passes through the second mounting through hole and is screwed into the second threaded hole.
2. The adjustable angle handle connection structure of the power tool as described in claim 1, characterized in that, Each of the protrusions is a spherical protrusion.
3. The adjustable angle handle connection structure of the power tool as described in claim 1 or 2, characterized in that, The positioning block includes a hollow cylindrical part and an annular flange disposed at the rear end of the cylindrical part; the side of the front end of the cylindrical part is provided with external threads, and the rear end wall of the central hole of the cylindrical part is provided with internal threads; the front end of the cylindrical part is helically connected to the first threaded hole, and the first locking screw extends into the central hole of the cylindrical part and is helically connected to the wall of the central hole of the cylindrical part.
4. The adjustable angle handle connection structure for power tools as described in claim 3, characterized in that, The plurality of protrusions are disposed on the rear end face of the annular flange.
5. The adjustable angle handle connection structure for power tools as described in claim 1, characterized in that, The multiple protrusions are evenly distributed along the same circumference.
6. The adjustable angle handle connection structure for power tools as described in claim 1, characterized in that, The handle includes an inverted U-shaped handle post and an L-shaped connector. One end of the horizontal side of the L-shaped connector is connected to the first end of the inverted U-shaped handle post, and the other end of the horizontal side of the L-shaped connector is connected to the bottom end of the vertical side of the L-shaped connector. The first mounting through hole is located on the vertical side of the L-shaped connector, and the second mounting through hole is located at the second end of the inverted U-shaped handle column.
7. The adjustable angle handle connection structure for power tools as described in claim 1, characterized in that, The positioning block includes a positioning block body and a positioning protrusion protruding from the positioning block body toward a first side of the housing; The first side of the housing has an annular protrusion surrounding the first threaded hole, and the side of the annular protrusion is provided with a first stop and a second stop; the top of the annular protrusion abuts against the positioning block body, and the positioning protrusion extends between the first stop and the second stop.
8. The adjustable angle handle connection structure for power tools as described in claim 7, characterized in that, The positioning protrusion is arc-shaped.
9. The adjustable angle handle connection structure of the power tool as described in claim 1, characterized in that, The power tool is a polishing machine, and the handle is an auxiliary handle for the polishing machine.
10. The adjustable angle handle connection structure of the power tool as described in claim 9, characterized in that, The housing is the gearbox housing of the polishing machine.