A shock drill with comfortable shifting.

Abstract

This utility model discloses a comfortable shifting impact drill, relating to the field of impact tool technology. It includes: an impact drill body for mounting a mode switching mechanism; and the mode switching mechanism comprising a lever slidably nested inside the housing of the impact drill body. Two metal springs are engaged on both sides of the lever, and both springs are fixedly nested inside the housing of the impact drill body. This utility model replaces the hard connection between the lever and the gearbox lever in the prior art with a soft connection. Therefore, after shifting gears, if the user does not stop applying force in time, the elastic element absorbs and buffers the force applied by the user, thus avoiding discomfort to the user's fingers due to the reaction force and improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of impact tool technology, and in particular to an impact drill with comfortable shifting. Background Technology

[0002] An impact drill is a power tool that combines rotary drilling and impact functions. It is mainly used to drill holes or grooves in various materials such as concrete, brick walls, metal, and wood. Existing impact drills usually have two working modes: drilling mode and impact mode, and are equipped with a mode switching mechanism to switch between modes.

[0003] The mode switching mechanism on existing impact drills typically consists of a sliding paddle that is sleeved on the outside of the gearbox stop lever and metal springs on both sides of the paddle for positioning. In actual gear shifting, the paddle is usually moved by the thumb or forefinger with relatively large force. After the paddle has shifted gears, it cannot move further due to the limiting effect of the gearbox stop lever. Since the user cannot immediately stop applying force to the paddle, the reaction force will act on the user's fingers, causing discomfort and affecting the user experience of the impact drill.

[0004] Therefore, it is necessary to invent an impact drill with comfortable gear shifting to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an impact drill with comfortable shifting. It replaces the rigid connection between the shift lever and the gearbox stop lever in existing technology with a flexible connection. This allows the elastic element to absorb and buffer the force applied by the user after shifting, preventing discomfort to the user's fingers due to the reaction force. This improves the user experience and addresses the problem mentioned in the background art: when shifting gears, the user typically uses their thumb or forefinger to apply relatively large force to the shift lever. After the shift lever completes the shift, it cannot move further due to the limiting effect of the gearbox stop lever. Because the user cannot immediately stop applying force to the shift lever, the reaction force acts on the user's fingers, causing discomfort and affecting the overall user experience of the impact drill.

[0006] According to one aspect of this disclosure, the following technical solution is provided: an impact drill with comfortable gear shifting, comprising:

[0007] An impact drill body, the impact drill body being used to install a mode switching mechanism; and

[0008] The mode switching mechanism includes a paddle that is slidably nested inside the outer shell of the impact drill body. Metal springs are engaged on both sides of the paddle, and both metal springs are fixedly nested inside the outer shell of the impact drill body. A buffer frame is slidably disposed at the bottom of the paddle and sleeved on the outside of the gearbox stop bar of the impact drill body. Both ends of the inner side of the buffer frame are fixedly provided with protruding posts, and elastic elements are sleeved on the outer sides of both protruding posts. Any one of the elastic elements is located between the paddle and the buffer frame.

[0009] According to at least one embodiment of the present disclosure, in an impact drill with comfortable shifting, two positioning grooves are provided on both sides of the shift block, and a protrusion is provided on the side of the metal spring near the shift block, the protrusion being adapted to the two adjacent positioning grooves.

[0010] According to at least one embodiment of the present disclosure, in an impact drill with comfortable shifting, the bottom of the shift block is provided with a guide groove, and the top of the buffer frame is slidably disposed inside the guide groove.

[0011] According to at least one embodiment of the present disclosure, in an impact drill with comfortable shifting, a protrusion is fixedly provided at the center of the bottom of the shift block, and any one of the elastic elements is located between the protrusion and the buffer frame.

[0012] According to at least one embodiment of the present disclosure, in an impact drill with comfortable shifting, L-shaped limiting blocks are fixedly provided at the four corners of the bottom of the shift block, and the buffer frame is slidably disposed between the shift block and the four L-shaped limiting blocks.

[0013] According to at least one embodiment of the present disclosure, in an impact drill with comfortable shifting, the bottom of the buffer frame is provided with a gearbox stop bar receiving groove, and limit sliders are fixedly provided on both sides of the buffer frame, with any one of the limit sliders slidably disposed between the shift block and two adjacent L-shaped limit blocks.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] This invention incorporates a mode switching mechanism. When shifting gears by tossing a lever with a finger, the lever compresses an elastic element on one side via a protrusion. This elastic element shortens and pushes a buffer frame until the buffer frame moves the gearbox lever, thus completing the gear shift. At this point, since the gearbox lever cannot move further, the buffer frame also stops moving. If the user does not stop applying force in time, the elastic element continues to compress, absorbing and buffering the force applied by the user. Compared to existing technologies, this invention replaces the rigid connection between the lever and the gearbox lever with a flexible connection. Therefore, after shifting gears, if the user does not stop applying force in time, the elastic element absorbs and buffers the force applied by the user, avoiding discomfort to the user's fingers due to the reaction force and improving the user experience. Attached Figure Description

[0016] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0017] Figure 1 This is a schematic diagram of the overall structure of an impact drill with comfortable gear shifting according to one embodiment of the present disclosure.

[0018] Figure 2 This is a schematic diagram of a portion of the impact drill body and the mode switching mechanism of an impact drill with comfortable shifting according to one embodiment of the present disclosure.

[0019] Figure 3 This is a schematic diagram of the mode switching mechanism of an impact drill with comfortable gear shifting according to one embodiment of the present disclosure.

[0020] The specific labels in the attached figures are as follows:

[0021] 1. Impact drill body;

[0022] 2. Mode switching mechanism; 21. Toggle block; 22. Metal spring; 23. Buffer frame; 24. Protruding post; 25. Elastic element; 211. Positioning groove; 212. Guide slide groove; 213. Protrusion; 214. L-shaped limit block; 231. Gearbox stop bar receiving groove; 232. Limit slider. Detailed Implementation

[0023] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0024] Figure 1 This is a schematic diagram of the overall structure of an impact drill with comfortable gear shifting according to one embodiment of the present disclosure.

[0025] Figure 2 This is a partial structural diagram of the impact drill body 1 and the mode switching mechanism 2 of an impact drill with comfortable shifting according to one embodiment of the present disclosure.

[0026] Figure 3 This is a schematic diagram of the mode switching mechanism 2 of an impact drill with comfortable gear shifting according to one embodiment of the present disclosure.

[0027] like Figures 1-3 As shown, the impact drill with comfortable shifting according to this disclosure may include components such as: impact drill body 1 and mode switching mechanism 2.

[0028] It should be noted that the impact drill body 1 is a solution already disclosed in the prior art and is not a necessary technical feature of this application. Therefore, this application will not elaborate on its specific structure here.

[0029] like Figure 3 As shown in this disclosure, the mode switching mechanism 2 includes a lever 21 that is slidably nested inside the outer shell of the impact drill body 1. Both sides of the lever 21 are engaged with metal springs 22. Both metal springs 22 are fixedly nested inside the outer shell of the impact drill body 1. A buffer frame 23 is slidably disposed at the bottom of the lever 21 and sleeved on the outside of the gearbox stop bar of the impact drill body 1. Both ends of the inner side of the buffer frame 23 are fixedly provided with protrusions 24. Both outer sides of the two protrusions 24 are sleeved with elastic elements 25. Any one of the elastic elements 25 is located between the lever 21 and the buffer frame 23.

[0030] Therefore, when shifting gears by tossing the lever 21 with a finger, the lever 21 compresses the elastic element 25 on one side via the protrusion 213. This elastic element 25 shortens and pushes the buffer frame 23 until the buffer frame 23 moves the gearbox lever, thus achieving the shifting operation. At this point, since the gearbox lever cannot move further, the buffer frame 23 also cannot move further. If the user does not stop applying force in time, the elastic element 25 continues to compress, thereby absorbing and buffering the force applied by the user. Compared to the prior art, this invention replaces the hard connection between the lever 21 and the gearbox lever in the prior art with a soft connection. Therefore, after shifting gears, if the user does not stop applying force in time, the elastic element 25 absorbs and buffers the force applied by the user, thus avoiding discomfort to the user's fingers due to the reaction force and improving the user experience.

[0031] like Figure 3 As shown, in a preferred embodiment, two positioning grooves 211 are provided on both sides of the lever 21. A protrusion is provided on the side of the metal spring 22 near the lever 21, and the protrusion is adapted to the two adjacent positioning grooves 211. A guide groove 212 is provided at the bottom of the lever 21. The top of the buffer frame 23 is slidably disposed inside the guide groove 212. A protrusion 213 is fixedly provided at the center of the bottom of the lever 21. Any elastic element 25 is located between the protrusion 213 and the buffer frame 23. L-shaped limit blocks 214 are fixedly provided at the four corners of the bottom of the lever 21. The buffer frame 23 is slidably disposed between the lever 21 and the four L-shaped limit blocks 214. A gearbox stop bar receiving groove 231 is provided at the bottom of the buffer frame 23. Limit sliders 232 are fixedly provided on both sides of the buffer frame 23. Any limit slider 232 is slidably disposed between the lever 21 and the two adjacent L-shaped limit blocks 214.

[0032] Therefore, when assembling the mode switching mechanism 2, the two elastic elements 25 can be first sleeved on the outside of the two protrusions 24 respectively. Then, the buffer frame 23 can be slid into the space between the push block 21 and the four L-shaped limiting blocks 214 through the opening of any end of the guide groove 212. At this time, the four L-shaped limiting blocks 214 form front and rear limits for the buffer frame 23, and cooperate with the push block 21 to form upper and lower limits for the buffer frame 23. The two elastic elements 25 cooperate with the protrusions 213 to form left and right limits for the buffer frame 23, so as to ensure the reliability of the buffer frame 23 after assembly. At the same time, the structure is relatively simple, avoiding excessive production costs due to overly complex structures.

[0033] In actual production, the push block 21, positioning groove 211, guide slide groove 212, protrusion 213 and L-shaped limit block 214 are integrally formed by injection mold, and the buffer frame 23, gearbox stop bar receiving groove 231 and limit slider 232 are integrally formed by injection mold.

[0034] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.

[0035] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. An impact drill with comfortable gear shifting, characterized in that, include: An impact drill body, which is used to install a mode switching mechanism; as well as The mode switching mechanism includes a paddle that is slidably nested inside the outer shell of the impact drill body. Metal springs are engaged on both sides of the paddle, and both metal springs are fixedly nested inside the outer shell of the impact drill body. A buffer frame is slidably disposed at the bottom of the paddle and sleeved on the outside of the gearbox stop bar of the impact drill body. Both ends of the inner side of the buffer frame are fixedly provided with protruding posts, and elastic elements are sleeved on the outer sides of both protruding posts. Any one of the elastic elements is located between the paddle and the buffer frame.

2. The impact drill with comfortable shifting according to claim 1, characterized in that: Two positioning grooves are provided on both sides of the lever, and a protrusion is provided on the side of the metal spring near the lever, which is adapted to the two adjacent positioning grooves.

3. The impact drill with comfortable shifting according to claim 2, characterized in that: The bottom of the lever is provided with a guide groove, and the top of the buffer frame is slidably disposed inside the guide groove.

4. The impact drill with comfortable shifting according to claim 3, characterized in that: A protrusion is fixedly provided at the center of the bottom of the lever block, and any one of the elastic elements is located between the protrusion and the buffer frame.

5. The impact drill with comfortable shifting according to claim 4, characterized in that: Each of the four corners of the bottom of the lever is fixedly provided with an L-shaped limiting block, and the buffer frame is slidably disposed between the lever and the four L-shaped limiting blocks.

6. The impact drill with comfortable shifting according to claim 5, characterized in that: The bottom of the buffer frame is provided with a gearbox stop bar receiving groove, and limit sliders are fixedly provided on both sides of the buffer frame. Any one of the limit sliders is slidably disposed between the push block and two adjacent L-shaped limit blocks.

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