Handle structure of electric tool and electric tool

Abstract

The utility model provides a handle structure of an electric tool, which comprises a handle main body and a trigger main body arranged in the handle main body, a switch and an elastic connecting component are arranged in the handle main body, and the trigger main body can be stressed by external force and overcome the elastic force of the elastic connecting component so as to realize whether the trigger main body is contacted with the switch or not; the handle is characterized in that the elastic connecting assembly comprises two symmetrically-arranged elastic bodies, each elastic body comprises a first spiral body fixedly arranged in the handle body and a first torsion arm extending out of one end of the first spiral body, and the first torsion arms are connected with the handle body; the second torsion arm extends out from the other end of the first spiral main body; the springback main body is arranged at the tail end of the second torsion arm, and the springback main body abuts against the two sides of the corner of the trigger main body. The springback stability and safety of the trigger body can be improved, and meanwhile the springback service life of the trigger body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to a handle structure of an electric tool and a corresponding electric tool. Background Art

[0002] At present, electric tools such as pruning shears have a handheld handle structure, which is switched by pressing the handle. This structure is like the annular handle for handheld tools disclosed in patent announcement No. CN202021600U, which includes two half shells, a U-shaped trigger installed between the two half shells and extending from the shells, and a micro switch installed in the shell. The trigger device also includes at least one first inclined surface for triggering the micro switch. The trigger and the shell are pressed and reset by two compression springs. The reset structure is prone to non-rebound or unsmooth rebound when the trigger is pressed left or right, and the spring is prone to fatigue fracture, which reduces the user's safety factor and usage experience. Utility Model Content

[0003] The utility model aims to avoid the deficiencies of the prior art and provides a handle structure of an electric tool and an electric tool with improved rebound stability.

[0004] The utility model solves the technical problem by adopting the following technical solution: a handle structure of an electric tool, comprising a handle body and a trigger body arranged in the handle body, wherein a switch and an elastic connection component are arranged in the handle body, wherein the trigger body can be subjected to an external force and overcome the elastic force of the elastic connection component, thereby realizing contact with the switch; the characteristic is that the elastic connection component comprises two elastic bodies which can be arranged symmetrically or asymmetrically, and the elastic body comprises:

[0005] A first spiral body is fixedly disposed in the handle body,

[0006] A first torsion arm extending from one end of the first spiral body, wherein the first torsion arm is connected to the handle body;

[0007] A second torsion arm extending from the other end of the first spiral body;

[0008] A rebound body is arranged at the end of the second torque arm, and the rebound body abuts against two sides of the corner of the trigger body.

[0009] In several embodiments, the rebound body includes a second spiral body and a third spiral body, the second spiral body is connected to the second torsion arm, a connecting arm is arranged between the second spiral body and the third spiral body, the connecting arm is arranged in a bent manner, and the second spiral body and the third spiral body are respectively located on both sides of the corner of the trigger body.

[0010] In several embodiments, the connecting arm is arranged to protrude toward the outside of the trigger.

[0011] In several embodiments, a mounting column is disposed in the handle body, and the mounting column is used to accommodate the first spiral body.

[0012] In several embodiments, a mounting groove is provided in the handle body, and the mounting groove is used to connect with the end of the first torque arm.

[0013] In several embodiments, a connecting groove is provided inwardly recessed on the outer side of the trigger body, and the rebound body is disposed in the connecting groove.

[0014] And, an electric tool comprising the handle structure of the electric tool.

[0015] The utility model has the following beneficial effects:

[0016] The utility model can ensure the normal rebound of the trigger and has a longer service life.

[0017] The utility model provides a safe and stable rebound force through the structure of the elastic body when the trigger is pressed to the left or right, and has a greater torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

[0019] Figure 1 The exploded structure of the handle structure of the electric tool in Embodiment 1 is schematically shown;

[0020] Figure 2 The overall structure of the handle structure of the electric tool in Embodiment 1 is schematically shown, wherein a part of the handle structure is in a perspective state;

[0021] Figure 3 Schematically shows Figure 1 Amplified structure of the middle elastic body;

[0022] Figure 4 Schematically shows Figure 2 The enlarged structure of the middle A part;

[0023] Figure 5 The overall structure of the handle structure of the electric tool in Example 2 is schematically shown, wherein part of the structure is in a perspective state. DETAILED DESCRIPTION

[0024] Below, the embodiments of the present invention are described in detail. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the present invention for protection, but merely represents selected embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0026] The terms used herein are intended to explain the embodiments and are not intended to limit and / or define the present invention.

[0027] Example 1

[0028] like Figure 1-Figure 4 As shown, the electric tool in this embodiment, such as pruning shears, has a handle structure mainly composed of a handle body 10, a trigger body 20, a switch 30 and an elastic connection component arranged in the handle body 10. The trigger body 20 can be subjected to external force, that is, the elastic force of the elastic connection component can be overcome when the hand is held, thereby achieving contact with the switch 30.

[0029] Here, the handle body 10 is composed of a front shell 101 and a rear cover 102, which are locked and connected by fasteners such as screws, and a space for accommodating other components is formed between the two. The handle body 10 as a whole is generally U-shaped, and the trigger body 20 is also correspondingly U-shaped, which is convenient for movement inside the handle body 10.

[0030] Specifically, the elastic connection assembly includes two asymmetrically arranged elastic bodies 40, which are mainly composed of a first spiral body 41 fixed in the handle body 10, a first torsion arm 42 extending from one end of the first spiral body 41, a second torsion arm 43 extending from the other end of the first spiral body 41, and a rebound body 44 arranged at the end of the second torsion arm 43, thereby forming a double torsion spring structure.

[0031] For the asymmetric setting of the elastic body 40, it can be that the second torque arm 43 in the left elastic body 40 is located at the upper left position on the lower side of the corner of the trigger body 20, and the second torque arm 43 in the right elastic body 40 is located at the upper right position on the upper side of the corner of the machine body 20.

[0032] Here, a connecting groove 21 is recessed inwardly at the middle of the outer side of the trigger body 20 and is generally distributed along the outer shape of the trigger body 20 . The rebound body 44 is disposed in the connecting groove 21 .

[0033] Here, the rebound body 44 includes a second spiral body 45 and a third spiral body 46, the second spiral body 45 is connected to the second torsion arm 43, and a connecting arm 47 is arranged between the second spiral body 45 and the third spiral body 46, and the connecting arm 47 is bent and generally in a herringbone shape, and the second spiral body 45 and the third spiral body 46 are respectively located on both sides of the corner of the trigger body 20 and abut against each other, and the angular symmetry line of the connecting arm 47 can be coincident with the angular symmetry line of the corner of the trigger body 20, and it is arranged to protrude toward the outside of the trigger body 20.

[0034] Furthermore, a mounting column 11 is disposed in the handle body 10 , and the mounting column 11 is used to accommodate the first spiral body 41 , thereby fixing the first spiral body 41 in the handle body 10 . The mounting column 11 is located at an obliquely upper position of the corner of the trigger body 20 .

[0035] Furthermore, a mounting groove 12 is provided in the handle body 10 , and the mounting groove 12 is used for plugging and matching with the end of the first torque arm 42 , thereby fixing the first torque arm 42 in the handle body 10 .

[0036] When the utility model is in use, when the trigger body 20 is pressed normally upward at the center, the two elastic bodies 40 will be pressed down at the same time, causing the trigger body 20 to rebound; when the trigger body 20 is pressed to the left, the elastic body 40 on the left applies rebound pressure, and the lower end of the rebound body 44 of the right elastic body 40, that is, the position of the third spiral body 46, will apply rebound pressure at the same time; when the trigger body 20 is pressed to the right, the elastic body 40 on the right applies rebound pressure, and the lower end of the rebound body 44 of the left elastic body 40 will apply rebound pressure at the same time, thereby improving the smooth rebound and safety reliability of the trigger.

[0037] Example 2

[0038] like Figure 5 As shown, in this embodiment, the difference from Embodiment 1 is that the two elastic bodies 40 are symmetrically arranged.

[0039] The examples shown in the utility model, the embodiments and special forms of the representation have been shown and described in detail in the drawings and the foregoing description, and should also be considered to be illustrative rather than restrictive. The description of special features in one embodiment does not mean that those special features are necessarily limited to that embodiment. The features of one embodiment can be used in combination with the features of other embodiments, which can be understood by those of ordinary skill in the art, whether or not explicitly described in this way. Exemplary embodiments have been shown and described, and all changes and improvements fall into the spirit of the utility model and are expected to be protected.

Claims

1. A handle structure of an electric tool, comprising a handle body (10) and a trigger body (20) arranged in the handle body (10), wherein a switch (30) and an elastic connection component are arranged in the handle body (10), and the trigger body (20) can be subjected to an external force and overcome the elastic force of the elastic connection component, thereby realizing contact or not with the switch (30); characterized in that: The elastic connection assembly comprises two elastic bodies (40), and the elastic bodies (40) comprise: A first spiral body (41) is fixedly disposed in the handle body (10), A first torsion arm (42) extending from one end of the first spiral body (41), wherein the first torsion arm (42) is connected to the handle body (10); A second torsion arm (43) extending from the other end of the first spiral body (41); A resilient body (44) is arranged at the end of the second torque arm (43), and the resilient body (44) abuts against two sides of the corner of the trigger body (20).

2. The handle structure of an electric tool according to claim 1, characterized in that: The rebound body (44) includes a second spiral body (45) and a third spiral body (46), the second spiral body (45) is connected to the second torsion arm (43), a connecting arm (47) is arranged between the second spiral body (45) and the third spiral body (46), the connecting arm (47) is arranged in a bent manner, and the second spiral body (45) and the third spiral body (46) are respectively located on both sides of the corner of the trigger body (20).

3. The handle structure of an electric tool according to claim 2, characterized in that: The connecting arm (47) is arranged to protrude toward the outside of the trigger body (20).

4. The handle structure of an electric tool according to claim 3, characterized in that: A mounting column (11) is arranged inside the handle body (10), and the mounting column (11) is used to accommodate the first spiral body (41).

5. The handle structure of an electric tool according to claim 4, characterized in that: A mounting groove (12) is provided in the handle body (10), and the mounting groove (12) is used to be connected to the end of the first torque arm (42).

6. The handle structure of an electric tool according to claim 1, characterized in that: The outer side of the trigger body (20) is recessed inwardly to form a connecting groove (21), and the resilient body (44) is arranged in the connecting groove (21).

7. The handle structure of an electric tool according to claim 1, characterized in that: The two elastic bodies (40) are symmetrically arranged.

8. The handle structure of an electric tool according to claim 1, characterized in that: The two elastic bodies (40) are arranged asymmetrically.

9. An electric tool, characterized in that: A handle structure comprising an electric tool as claimed in any one of claims 1 to 8.

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