A handle, a sleeve and an electric device

Abstract

The present invention discloses a handle, a sleeve and an electric device, comprising a main body, the side surface of the main body comprising two symmetrically arranged vertical planes and two symmetrically arranged reinforced surfaces, the two vertical planes are connected with the two reinforced surfaces to form a side surface, the reinforced surface is convex, a clamping groove is arranged on the vertical plane, and the bottom end of the vertical plane forms a blocking portion with the main body; the present invention has the characteristics of novel structure, strong handle strength, not easy to break, easy processing, etc.

Description

Technical Field

[0001] The invention relates to a handle, a sleeve and an electric device. Background Art

[0002] Existing hardware tools, including drills, chisels or hammers, etc., due to the emergence of electric equipment, operators can insert the handle of the tool into the clamp of the electric equipment, and achieve the coordination between the tool and the electric equipment through the coordination of the handle and the clamp.

[0003] However, the impact force or rotational force of existing electric devices is getting bigger and bigger, which leads to greater force requirements on the connection between the electric device and the handle. Usually, the bearing capacity of the tool handle is insufficient, resulting in the breakage of the tool handle, which makes the entire tool directly scrapped, seriously affecting the actual use effect. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a handle, a sleeve and an electric device.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a handle, including a main body, wherein the side of the main body includes two symmetrically arranged vertical planes and two symmetrically arranged reinforcement surfaces, the two vertical planes and the two reinforcement surfaces are connected to form a side part, the reinforcement surface is convex, and a clamping groove is provided on the vertical plane, and the bottom end of the vertical plane forms a blocking part with the main body.

[0006] The two clamping grooves are used to clamp the handle, and the two reinforcing surfaces are convex to improve the overall strength of the handle. Compared with the prior art, this structure convexes to the two side surfaces to improve the strength of the side surfaces, thereby reducing the influence of radial stress generated by rotation on the handle and improving the overall strength of the handle. The blocking portion is provided to limit the handle during installation to prevent the handle from excessively extending into the electric device.

[0007] Wherein, an outer arc edge is arranged on the reinforcement surface, and the outer arc edge coincides with an imaginary circumscribed circle of the main body.

[0008] The outer arc edge is directly coincident with the imaginary circumscribed circle of the main body, so that the strength of the side is maximized. Another function is that the processing is more convenient.

[0009] Among them, the distance from the vertical plane to the center of the main body is L1, the distance from the reinforcement surface to the center of the main body is L2, 1mm≤L2-L1≤2mm.

[0010] The size limit between the vertical plane and the reinforced surface further improves the overall stability. If the difference between the two is small, although the strength is improved, the clamping effect becomes worse, it is not easy to produce a fixing effect, and it is easy to fall off; if the difference between the two is large, the overall strength is reduced. Many experiments have shown that within the limited range of 1mm≤L2-L1≤2mm, both the clamping effect and the strength can be guaranteed. At the same time, during the processing, there is no need for precise processing, and it can be controlled within this range, reducing the processing cost.

[0011] The length of the vertical plane is one-half to four-fifths of the length of the side surface of the main body.

[0012] The length of the vertical plane is defined, further ensuring the effect of the blocking portion.

[0013] The clamping groove is set in a runway shape, the length of the clamping groove is one third to one half of the length of the vertical plane, and the clamping groove is located on one side close to the top of the main body.

[0014] The clamping groove is set in a runway shape, which can clamp different clamping lengths. The overall length of the clamping groove is limited, which further improves the clamping effect. The clamping groove is set close to the top side of the main body, so that most of the handle extends into the electric device to form a clamping effect, thereby improving the stability of the electric device clamping.

[0015] The distance between the top of the clamping groove and the top of the main body is 5mm-7mm.

[0016] The distance limitation further ensures the stability of the clamping groove.

[0017] The bottom surface of the clamping groove is a rectangular surface, and the bottom surface and the top of the side wall of the clamping groove are connected by an arc surface.

[0018] The arc surface connection makes the clamping fit between the clamping groove and the electric device higher.

[0019] Among them, the top of the main body is in a truncated cone shape.

[0020] The top of the main body is in a truncated cone shape to provide a guide.

[0021] A sleeve also includes the above-mentioned handle, the sleeve is provided with a through hole matched with the handle, and protrusions matched with the vertical plane and clamping holes matched with the clamping groove are provided on both sides of the through hole.

[0022] This type of sleeve setting can be used to clamp the above-mentioned handle, and can also clamp the four-pit handle, achieving a dual-purpose effect.

[0023] An electric device, which also includes the above-mentioned sleeve, one end of the sleeve is fixedly matched with the electric device, and the other end is connected and fixedly connected to the handle.

[0024] This kind of electric device can be better connected and used in conjunction with the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a front view of Embodiment 1 of the present invention;

[0026] Figure 2 It is a left side view of embodiment 1 of the present invention;

[0027] Figure 3 is a top view of embodiment 1 of the present invention;

[0028] Figure 4 is a perspective view of Embodiment 2 of the present invention;

[0029] Figure 5 is an exploded view of embodiment 2 of the present invention;

[0030] Figure 6 is a bottom view of embodiment 2 of the present invention;

[0031] Figure 7 It is a perspective view of embodiment 3 of the present invention. DETAILED DESCRIPTION Embodiment 1:

[0032] See attached Figure 1-3 As shown, a handle includes a main body 1, and the side of the main body 1 includes two symmetrically arranged vertical planes 11 and two symmetrically arranged reinforcing surfaces 12, that is, the two ends of a vertical plane 11 are respectively connected to the two reinforcing surfaces 12, surrounding and forming a part of the side of the main body 1, and the part of the side of the main body 1 here specifically refers to the middle and upper section of the main body 1. The reinforcing surface 12 is specifically convex and arc-shaped, and the reinforcing surface 12 includes an outer arc edge, and the outer arc edge coincides with the imaginary circumscribed circle of the main body 1. The distance from the vertical plane 11 to the center of the main body 1 is L1, and the distance from the reinforcing surface 12 to the center of the main body 1 is L2. 1mm≤L2-L1≤2mm. The size limit between the vertical plane 11 and the reinforcing surface 12 further improves the overall stability. If the difference between the two is small, although the strength is improved, the clamping effect becomes worse, it is not easy to produce a fixing effect, and it is easy to fall off; if the difference between the two is large, the overall strength is reduced. Many experiments have shown that within the limited range of 1mm≤L2-L1≤2mm, both the clamping effect and the strength can be guaranteed. At the same time, during the processing, there is no need for precise processing, and it can be controlled within this range to reduce processing costs. The preferred L2-L1 here is 1.5mm.

[0033] The lower section 13 of the main body 1 is used to connect with the connecting part of the hardware tool. The lower section 13 specifically refers to a section from the bottom end of the vertical plane 11 to the bottom end of the main body 1. The lower section 13 is specifically cylindrical. The cross section of the cylinder here coincides axially with the imaginary circumscribed circle of the middle and upper section. When the lower section 13 is also cylindrical, the overall processing is more convenient. It only needs to be cut or milled on the vertical plane 11, and no additional processing is required for the reinforced surface 12. It should be noted that the hardware tool here specifically refers to a tool with a handle such as a drill, a chisel or a flower hammer.

[0034] The main body top 14 is in a truncated cone shape. The main body top 14 is in a truncated cone shape, which has a guiding effect.

[0035] The top of the vertical plane 11 extends into the truncated cone, and the top of the vertical plane 11 is an arc surface. The bottom of the vertical plane 11 and the main body 1 form a blocking portion 15, and the blocking portion 15 is an inclined surface, and the inclined surface is inclined toward the bottom end of the side surface. The angle of the inclined surface is 110°-130°, preferably 120°.

[0036] The length of the vertical plane 11 is one-half to four-fifths of the length of the side surface of the main body 1 . Here, the length of the vertical plane 11 is preferably seven-tenths of the length of the side surface of the main body 1 .

[0037] The clamping groove 2 is located on the vertical plane 11 and is located on one side close to the top of the main body 1. The distance between the top of the clamping groove 2 and the top of the main body 1 is 5mm-7mm, and is preferably 5.5mm here. The clamping groove 2 is set in a runway shape. The length of the clamping groove 2 is one-third to one-half of the length of the vertical plane 11. Here, the length of the clamping groove 2 is preferably one-half of the vertical plane 11. Here, the proportional relationship between the clamping groove 2, the vertical plane 11 and the side of the main body is limited, which further improves the overall clamping effect and overall strength. The clamping groove 2 is set in a runway shape, and different clamping lengths can be clamped. Moreover, the limitation of the overall length of the clamping groove 2 further improves the clamping effect. The setting of the clamping groove 2 close to the top of the main body 1 allows most of the handle to extend into the electric device to form a clamping effect, thereby improving the stability of the clamping of the electric device.

[0038] The bottom surface 21 of the clamping groove 2 is a rectangular surface, and the bottom surface 21 and the top of the side wall of the clamping groove 2 are connected by an arc surface. The arc surface connection makes the clamping fit between the clamping groove 2 and the electric device higher.

[0039] The main body 1 is an integrally formed device and can be formed by cold pressing or by a milling machine.

[0040] The two clamping grooves 2 are arranged to clamp the handle, and the two reinforcing surfaces 12 are arranged to bulge outwards, thereby improving the overall strength of the handle. Compared with the prior art, this structure bulges outwards to the two side surfaces to improve the strength of the side surfaces, thereby reducing the influence of radial stress generated by rotation on the handle and improving the overall strength of the handle. The blocking portion 15 is arranged to have a limiting effect during the installation of the handle, thereby preventing the handle from excessively extending into the electric device. Embodiment 2:

[0041] See attached Figure 4-6 As shown, a sleeve also includes a handle. The structure of the handle has been described in detail in Example 1, so it is not described here. The sleeve is provided with a through hole 31 adapted to the handle, and protrusions 32 adapted to the blocking portion 15 of the vertical plane 11 and clamping holes 33 adapted to the clamping groove 2 are provided on both sides of the through hole 31. The protrusion 32 is similar in structure to the blocking portion 15 and is also arranged obliquely. The two inclined surfaces fit together to ensure the clamping effect. With this sleeve arrangement, it can be used to clamp the above-mentioned handle, and it can also clamp the four-pit handle, achieving a dual-purpose effect. Embodiment 3:

[0042] See attached Figure 7 As shown, an electric device also includes a sleeve 4, one end of the sleeve 4 is fixedly matched with the electric device 6, and the other end is connected and fixedly connected with the handle 5. This electric device 6 can be better connected and used with the handle 5. Here, the electric device 6 also has an impact or rotation device, which is a prior art, so it will not be described in detail here.

Claims

1. A handle, comprising a main body, characterized in that: The side surface of the main body includes two symmetrically arranged vertical planes and two symmetrically arranged reinforced surfaces. The two vertical planes are connected with the two reinforced surfaces to form a side surface. The reinforced surface is convex. A clamping groove is provided on the vertical plane. The bottom end of the vertical plane forms a blocking part with the main body. An outer arc edge is provided on the reinforced surface, and the outer arc edge coincides with an imaginary circumscribed circle of the main body. The distance from the vertical plane to the center of the main body is L1, and the distance from the reinforced surface to the center of the main body is L2, 1mm≤L2-L1≤2mm; the length of the vertical plane is one-half to four-fifths of the length of the side surface of the main body; the clamping groove is a runway-shaped arrangement, and the length of the clamping groove is one-third to one-half of the length of the vertical plane, and the clamping groove is located on the side close to the top of the main body; the distance between the top of the clamping groove and the top of the main body is 5mm-7mm; the bottom surface of the clamping groove is a rectangular surface, and the bottom surface to the top of the side wall of the clamping groove is connected by an arc surface.

2. A handle according to claim 1, characterized in that: The top of the main body is in the shape of a truncated cone.

3. A sleeve, characterized in that: It also includes a handle as described in any one of claims 1-2, the sleeve is provided with a through hole adapted to the handle, and protrusions adapted to the vertical plane and clamping holes adapted to the clamping groove are provided on both sides of the through hole.

4. An electric device, characterized in that: It also includes a sleeve as described in claim 3, one end of the sleeve is fixedly matched with the electric device, and the other end is connected and fixedly connected to the handle.

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