A portable gun drill

Abstract

The application provides a portable gun drill, which comprises a gun drill body and an auxiliary handle. The gun drill body comprises a holding handle for one hand of a user to hold. The auxiliary handle is for the other hand of the user to hold, and the auxiliary handle is detachably installed at a first position, a second position or a third position of the gun drill body. When the auxiliary handle is installed at the first position, the gun drill body works at a first angle. When the auxiliary handle is installed at the second position, the gun drill body works at a second angle. When the auxiliary handle is installed at the third position, the gun drill body works at a third angle. The auxiliary handle is switched among the three different installation positions of the gun drill body through a detachable structure, so that the gun drill body is adapted to different working angles.

Description

Technical Field

[0001] This application relates to the field of power tool technology, and more particularly to a portable gun drill. Background Technology

[0002] When using a drill gun, it is often necessary to drill into hard materials such as bricks and walls. During drilling, the reaction force generated by the wall can easily cause the drill gun to wobble. It is difficult for the operator to balance this wobble by simply holding the handle of the drill gun, which may lead to drilling errors. To improve this situation, some gun drills are equipped with auxiliary handles. However, most existing auxiliary handles are fixed-mount structures, which can only be installed in a specific position on the gun drill body, and cannot be selected according to actual needs. This results in a fixed relative position between the auxiliary handle and the grip handle, and the gun drill can only work at a single angle. When facing different drilling scenarios, such as when it is necessary to change the drilling direction, the fixed-position auxiliary handle cannot adapt to the operator's grip and force application posture, making it difficult to effectively distribute reaction force, resulting in poor balance, easy hand fatigue for the operator, and the drilling stability and accuracy are still affected. Summary of the Invention

[0003] In view of this, the purpose of this disclosure is to provide a portable gun drill that can select a suitable installation position according to different working conditions, so that the auxiliary handle can be adapted to the user's grip and force application posture, reduce the fatigue of the operator's hands, and ensure drilling accuracy.

[0004] To achieve the above objectives, this application adopts the following technical solution: A portable gun drill, comprising: A gun drill body, wherein a working head is provided on one side of the gun drill body; An auxiliary handle, wherein the auxiliary handle has a first connecting portion; An auxiliary bracket is provided on the drill body, and the auxiliary bracket is provided with a plurality of second connecting parts, which are distributed along the circumferential direction of the drill body. The second connecting parts are used to match with the first connecting parts to fix the auxiliary handle. A grip handle is provided on the drill body.

[0005] Furthermore, the second connecting part is a mounting hole with a second thread on its inner wall, the first connecting part is embedded in the mounting hole, and the first connecting part has a first thread that matches the second thread.

[0006] Furthermore, the second connecting part is a mounting hole with a radial cross-section of a regular polygon, and the first connecting part is constructed to be magnetic. The first connecting part is embedded in the mounting hole to magnetically assist in fixing the auxiliary handle.

[0007] Furthermore, the auxiliary bracket is provided with a first mounting hole, a second mounting hole, and a third mounting hole: The auxiliary handle is installed in the first mounting hole, and a first working angle a1 (90°) is formed between the auxiliary handle and the grip handle; or the auxiliary handle is installed in the second mounting hole, and a second working angle a2 (180°) is formed between the auxiliary handle and the grip handle; or the auxiliary handle is installed in the third mounting hole, and a third working angle a3 (270°) is formed between the auxiliary handle and the grip handle.

[0008] Furthermore, the auxiliary handle is installed at the head of the drill body, and the auxiliary handle is set perpendicular to the head.

[0009] Furthermore, it also includes an auxiliary bracket disposed on the drill body, and the auxiliary handle is detachably mounted on the auxiliary bracket.

[0010] Furthermore, the auxiliary bracket is provided with a first threaded hole and a second threaded hole, and the auxiliary handle is provided with a threaded post; When the auxiliary handle is installed in the first position, the threaded post mates with the first threaded hole. When the auxiliary handle is installed in the second position, the threaded post mates with the second threaded hole; When the auxiliary handle is installed in the third position, the threaded post mates with the third threaded hole.

[0011] Furthermore, the auxiliary support is provided with a slot that engages with the drill body.

[0012] Furthermore, a limiting groove is provided on the slot, and a limiting block that engages with the limiting groove is protruding on the drill body.

[0013] Furthermore, the auxiliary bracket includes a first claw and a second claw fixed by screws. The first claw has a first recess, and the second claw has a second recess, which together form a slot.

[0014] Furthermore, the auxiliary handle includes a grip portion, the surface of which is provided with an anti-slip texture.

[0015] Furthermore, the two ends of the gripping part are respectively provided with a first protrusion and a second protrusion.

[0016] Compared with the prior art, this application has the following technical effects: This application utilizes an auxiliary bracket that matches an auxiliary handle. The auxiliary bracket features second connecting parts at different angles to accommodate the auxiliary handle, allowing for selection of appropriate installation positions based on various working conditions. This enables the auxiliary handle to adapt to different grip and force application postures, switching between three different installation positions. Consequently, the drill body can adapt to different working angles. A single auxiliary handle can meet diverse work needs, allowing users to quickly adjust their operating posture without changing tools, thus improving work efficiency. Furthermore, this structure reduces the overall manufacturing cost of the drill, eliminating the need for separate handle components for different positions and avoiding redundant production and assembly processes. While maintaining functionality, it achieves a lightweight structure, making the drill more convenient to carry and move, especially suitable for construction workers or outdoor workers who frequently change work locations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this disclosure or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a portable gun drill according to an embodiment of this application. Figure 1 ; Figure 2 This is a schematic diagram of the 90° auxiliary handle structure of the gun drill according to an embodiment of this application; Figure 3 This is a schematic diagram of the 180° auxiliary handle structure of the gun drill according to an embodiment of this application; Figure 4 This is a schematic diagram of the auxiliary support structure of the gun drill according to an embodiment of this application; Figure 5 The structural diagram of the gun drill in this application embodiment is shown. Figure 2 ; Figure 6 This is an exploded view of the auxiliary support for the gun drill according to an embodiment of this application. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in the embodiments of this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] When using a drill gun, it is often necessary to drill into hard materials such as bricks and walls. During drilling, the reaction force generated by the wall can easily cause the drill gun to wobble. It is difficult for the operator to balance this wobble by simply holding the handle of the drill gun, which may lead to drilling errors. To improve this situation, some portable drills are equipped with auxiliary handles. However, most existing auxiliary handles are fixed-mount structures, which can only be installed at a specific position on the drill body, and cannot be installed in a position according to actual needs. This results in a fixed relative position between the auxiliary handle and the grip handle, and the drill can only work at a single angle. When facing different drilling scenarios, such as when it is necessary to change the drilling direction, the fixed-position auxiliary handle cannot adapt to the operator's grip and force application posture, making it difficult to effectively disperse the reaction force, resulting in poor balance, easy hand fatigue for the operator, and the stability of the drilling is still not guaranteed, and the drilling accuracy is still affected. This application proposes a portable drill with a drill body and an auxiliary support. The auxiliary support is set on the drill body and has multiple second connecting parts (such as mounting holes) distributed along the circumferential direction of the drill body. The second connecting parts are used to match the first connecting parts to fix the auxiliary handle, thus meeting the needs of operation under different working conditions.

[0022] The portable gun drill (hereinafter referred to as the gun drill) proposed in this application will now be described with reference to the accompanying drawings.

[0023] like Figure 1As shown, the gun drill includes a drill body 100 and an auxiliary handle 200. The drill body 100 includes a grip handle 110 for one hand to hold; the auxiliary handle 200 is for the other hand to hold, and is detachably mounted in a first, second, or third position on the drill body 100. When the auxiliary handle 200 is mounted in the first position, the drill body 100 operates at a first angle; when the auxiliary handle 200 is mounted in the second position, the drill body 100 operates at a second angle; and when the auxiliary handle 200 is mounted in the third position, the drill body 100 operates at a third angle. The auxiliary handle 200 of this invention, through its detachable structure, allows switching between three different mounting positions on the drill body 100, thus enabling the drill body 100 to adapt to different working angles. A single auxiliary handle 200 can meet diverse drilling needs. Furthermore, this structure reduces the overall manufacturing cost of the gun drill, eliminating the need to design separate handle assemblies for different positions. The drill body 100 is equipped with a drive motor and a matching gearbox, which is existing technology and will not be described in detail here.

[0024] like Figure 2 As shown, when the auxiliary handle 200 is installed in the first position, the angle between the auxiliary handle 200 and the grip handle 110 is 90°; Figure 3 As shown, when the auxiliary handle 200 is installed in the second position, the angle between the auxiliary handle 200 and the grip handle 110 is 180°. In the 90° angle position, the hands are in a cross-shaped force application posture, which is suitable for horizontal drilling operations. The drilling direction can be stably controlled by the arms to avoid drill bit deviation. In the 180° angle position, the hands are in a "straight grip" posture, and the force application direction is consistent with the drilling axis. When drilling vertically, the body force can be transmitted to the drill bit more directly.

[0025] In one embodiment, the second connecting part is a mounting hole with a regular polygonal (radial cross-section), and the first connecting part is configured to be magnetic. The first connecting part is inserted into the mounting hole to magnetically assist in fixing the auxiliary handle.

[0026] In another possible embodiment of this application, the auxiliary handle 200 can also be installed in a third position, in which the angle between the auxiliary handle 200 and the grip handle 110 is 270°.

[0027] The auxiliary handle 200 is installed at the drill head 120 of the drill body 100, and the auxiliary handle 200 is set perpendicular to the drill head 120. As the power output end of the drill, the drill head 120 is the area where the force is most concentrated. Installing the auxiliary handle 200 here can directly counteract the reaction force generated during drilling. The design perpendicular to the drill head 120 ensures that the force direction of the auxiliary handle 200 forms a stable support with the plane of rotation of the drill bit, further reducing hand vibration caused by recoil.

[0028] The gun drill also includes an auxiliary bracket 300 mounted on the gun drill body 100, and an auxiliary handle 200 is detachably mounted on the auxiliary bracket 300. The auxiliary bracket 300 serves as a connection carrier between the auxiliary handle 200 and the gun drill body 100, avoiding the loss of machine strength caused by directly machining and mounting structures on the gun drill body 100.

[0029] like Figure 1 , Figure 4 As shown, the auxiliary bracket 300 has a first threaded hole 301, a second threaded hole 302, and a third threaded hole 303, and the auxiliary handle 200 has a threaded post 210. When the auxiliary handle 200 is installed in the first position, the threaded post 210 mates with the first threaded hole 301; when the auxiliary handle 200 is installed in the second position, the threaded post 210 mates with the second threaded hole 302; and when the auxiliary handle 200 is installed in the third position, the threaded post 210 mates with the third threaded hole 303. The threaded connection between the threaded post 210 and the first threaded hole 301, the second threaded hole 302, and the third threaded hole 303 has the advantages of simple structure and convenient assembly and disassembly. Users only need to rotate the auxiliary handle 200 to complete the position switching without additional tools; the preload generated by the threaded engagement ensures that the auxiliary handle 200 does not loosen during high-speed drilling, and the connection stability is far superior to easily worn structures such as snap-fits.

[0030] The auxiliary support 300 is provided with a slot 303 that engages with the drill body 100. The engaging structure of the slot 303 can quickly achieve the initial positioning of the auxiliary support 300 and the drill body 100, reducing the difficulty of alignment during assembly. At the same time, it provides a temporary fixing effect before thread fixing, which facilitates subsequent tightening operations. Compared with simple screw fixing, the dual connection method of slot 303, which combines engaging and tightening, can distribute the force on the auxiliary support 300 and extend its service life.

[0031] like Figure 4 , Figure 5 As shown, a limiting groove 304 is provided on the slot 303, and a limiting block 101 protrudes from the drill body 100 to engage with the limiting groove 304. The cooperation between the limiting groove 304 and the limiting block 101 can precisely limit the circumferential rotation of the auxiliary support 300, preventing the auxiliary support 300 from rotating around the drill body 100 when under force, and ensuring that the auxiliary handle 200 is always in the preset force direction; this positioning structure can also simplify the installation process, and users can complete the correct assembly without repeatedly adjusting the angle of the auxiliary support 300.

[0032] like Figure 6As shown, the auxiliary bracket 300 includes a first chuck 310 and a second chuck 320 fixed by screws. The first chuck 310 has a first recess 311, and the second chuck 320 has a second recess 321. The first recess 311 and the second recess 321 form a slot 303. The separate design of the first chuck 310 and the second chuck 320 allows the auxiliary bracket 300 to adapt to the gun head 120 of the gun drill body 100 of different diameters. By adjusting the distance between the two chucks, it can be compatible with different models of gun drills in the same series. The screw fixing method allows the first chuck 310 or the second chuck 320 to be replaced individually according to the wear condition, reducing maintenance costs. At the same time, the symmetrical structure of the first recess 311 and the second recess 321 ensures that the clamping force of the slot 303 on the gun drill body 100 is evenly distributed.

[0033] like Figure 1 The auxiliary handle 200 includes a grip portion 220, the surface of which is provided with an anti-slip texture 221. The anti-slip texture 221 on the surface of the grip portion 220 can increase the friction between the hand and the grip portion 220, and can prevent operation errors caused by the handle slipping even when the hands are sweaty or oily.

[0034] The grip portion 220 has a first protrusion 230 and a second protrusion 240 at each end. The first protrusion 230 and the second protrusion 240 can naturally limit the range of hand movement when gripping, preventing the hand from unconsciously sliding forward or backward during long-term operation and ensuring that the force point remains stable. At the same time, the grip space formed by the first protrusion 230 and the second protrusion 240 conforms more closely to the natural curvature of the palm, reducing the hard compression between the fingers and the handle and improving grip comfort.

[0035] It should be noted that the above description describes some embodiments of this disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0036] This disclosure is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A portable gun drill, characterized in that, include: A gun drill body, wherein a working head is provided on one side of the gun drill body; An auxiliary handle, wherein the auxiliary handle has a first connecting portion; An auxiliary bracket is provided on the drill body, and the auxiliary bracket is provided with a plurality of second connecting parts, which are distributed along the circumferential direction of the drill body. The second connecting parts are used to match with the first connecting parts to fix the auxiliary handle. A grip handle is provided on the drill body.

2. The portable gun drill according to claim 1, characterized in that, The second connecting part is a mounting hole with a second thread on its inner wall. The first connecting part is embedded in the mounting hole and has a first thread that matches the second thread.

3. The portable gun drill according to claim 1, characterized in that, The second connecting part is a mounting hole with a radial cross-section of a regular polygon. The first connecting part is magnetically configured and is embedded in the mounting hole to magnetically assist in fixing the auxiliary handle.

4. The portable gun drill according to claim 2 or 3, characterized in that, The auxiliary bracket is provided with a first mounting hole, a second mounting hole, and a third mounting hole, wherein, The auxiliary handle is installed in the first mounting hole, and a first working angle a1 is formed between the auxiliary handle and the grip handle; or the auxiliary handle is installed in the second mounting hole, and a second working angle a2 is formed between the auxiliary handle and the grip handle; or the auxiliary handle is installed in the third mounting hole, and a third working angle a3 is formed between the auxiliary handle and the grip handle.

5. The portable gun drill according to claim 1, characterized in that, The auxiliary support includes a first claw and a second claw fixed by screws; The first claw has a first recess, and the second claw has a second recess, the first recess and the second recess forming a slot.

6. The portable gun drill according to claim 1, characterized in that, The auxiliary handle includes a grip portion, the surface of which is provided with an anti-slip texture.

7. The portable gun drill according to claim 6, characterized in that, The two ends of the gripping part are respectively provided with a first protrusion and a second protrusion.

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