Portable gun drill

Abstract

The utility model discloses a portable gun drill which comprises a handle, one side of the handle is provided with a main shell, the side, away from the main shell, of the handle is provided with a containing part, and the containing part is used for installing a battery pack; a driving assembly is arranged in the main shell, and a clamping part is mounted on one side of the main shell; the clamping part comprises a first clamping part, a hollow supporting seat, a shaft sleeve and a second clamping part, the second clamping part is connected with the driving assembly, the supporting seat is sleeved with the shaft sleeve, the second clamping part is sleeved with the supporting seat, the supporting seat and the second clamping part are coaxially arranged, and a cavity is formed in the end, facing the supporting seat side, of the second clamping part; the working head penetrates through the supporting seat; the first clamping parts are arranged in the circumferential direction of the supporting seat sleeve at intervals, the rotating shaft sleeve moves the first clamping parts so as to clamp or release the working heads, the gun drill can be matched with two types of working heads, the length of the gun drill can be reduced, and application in a narrow space is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of handheld power tools, in particular to a portable gun drill. BACKGROUND

[0002] With the innovation of technology, handheld tools (gun drills) are widely used, and different types of work heads are needed when the target is different. Most of the current gun drills support one type of work head, and if different types (joints) of work heads are used, a transfer joint is needed. Therefore, the user needs to prepare a transfer joint and a work head when using it, and it is more troublesome to operate by adapting the work head through the transfer joint. Sometimes, additional tools are also needed, which increases the burden of the user in actual application. The current gun drill tool is not convenient to carry. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the above-mentioned shortcomings, the purpose of the present application is to provide a portable gun drill with simple structure and convenient operation.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0005] A portable gun drill comprises:

[0006] A handle, one side of the handle has a main shell, and the side of the handle away from the main shell has a receiving part for installing a battery pack, and the battery pack is partially embedded in the handle;

[0007] A driving assembly is arranged in the main shell, and a clamping part is arranged on one side of the main shell;

[0008] The clamping part comprises a first clamping part, a hollow support seat, a shaft sleeve and a second clamping part, the second clamping part is connected to the driving assembly,

[0009] The shaft sleeve is sleeved on the support seat,

[0010] The support seat is sleeved on the second clamping part and is coaxially arranged with the second clamping part, and the end of the second clamping part towards the support seat has a cavity for receiving the work head passing through the support seat;

[0011] The first clamping part is arranged along the circumferential direction of the support seat, and rotating the shaft sleeve moves the first clamping part to clamp or release the work head. Through the optimization of the structure of the clamping part, it can meet the quick installation of work heads of different shapes / joints, and when switching, it can be directly inserted into the clamping part without the need for auxiliary clamps, realizing tool-free switching of work heads and reducing the workload when replacing work heads.

[0012] Preferably, the driving assembly comprises a driving device and a reduction gearbox, the output end of the driving device is connected to the reduction gearbox, and the output end of the reduction gearbox is connected to the second clamping component.

[0013] Preferably, the clamping part comprises a shell, the support seat is arranged in the shell, and the shell is coaxially arranged with the support seat.

[0014] Preferably, the support seat is provided with inclined perforations which are spaced apart in the circumferential direction,

[0015] The first clamping part comprises at least two clamping jaws which are arranged in the perforations, and the clamping jaws are provided with first threads which are engaged with second threads on the inner wall of the shaft sleeve respectively, and the shaft sleeve is rotated to synchronously move the clamping jaws.

[0016] Preferably, the first clamping part comprises three clamping jaws which are equally spaced apart in the circumferential direction of the support seat, and the combination of the three clamping jaws is in the shape of an eight or a horn.

[0017] Preferably, one side end of the support seat has a receiving cavity, the side wall of the receiving cavity is provided with third threads which are engaged with fourth threads on the outer side of the second clamping component.

[0018] Preferably, the side away from the fourth threads has a connecting end which is connected to the output end of the driving assembly.

[0019] Preferably, the fourth thread side of the second clamping component has the cavity, and the radial cross section of the cavity is a regular polygon.

[0020] Preferably, the radial cross section of the fourth thread side of the second clamping component is a regular hexagon.

[0021] Preferably, the main shell is provided with a recess, and the recess is mounted with a buckle. In this way, the user can carry it conveniently.

[0022] Advantages

[0023] The gun drill provided in the present application can meet the quick installation of different shapes of working heads through the optimization of the mechanism of the clamping part, and the working head can be directly inserted into the clamping part without auxiliary clamps when switching, thereby reducing the workload when replacing the working head. Through the structural optimization of the main shell, a buckle is arranged on the main shell, and the buckle can be directly buckled on the body (such as the waist), thereby facilitating the user to carry it. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings are used to provide an understanding of the technical solutions of the present disclosure, and constitute a part of the specification, and are used together with embodiments of the present disclosure to explain the technical solutions of the present disclosure, and do not constitute a limitation on the technical solutions of the present disclosure. The shapes and sizes of the components in the drawings do not reflect the true proportions, and the purpose is only to schematically illustrate the content of the present application.

[0025] Figure 1 is a perspective view of the gun drill from another angle of the embodiment of the present application;

[0026] Figure 2 is a perspective view of the gun drill from another angle of the embodiment of the present application;

[0027] Figure 2a is a cross-sectional view of the gun drill of the embodiment of the present application;

[0028] Figure 3a is a perspective view of the clamping portion of the embodiment of the present application;

[0029] Figure 3b is a perspective view of the clamping portion of the embodiment of the present application; Figure 3a is a front view of the clamping portion of the embodiment of the present application;

[0030] Figure 3c is a cross-sectional view of the clamping portion of the embodiment of the present application; Figure 3b

[0031] Figure 4a is a perspective view of the support frame of the clamping portion of the embodiment of the present application;

[0032] Figure 4b is a front view of the support frame of the clamping portion of the embodiment of the present application; Figure 4a

[0033] is a cross-sectional view of the support frame of the clamping portion of the embodiment of the present application; Figure 4c Figure 4b is a perspective view of the clamping portion of the gun drill of the embodiment of the present application with the outer shell removed;

[0034] Figure 5 is a perspective view of the clamping portion of the gun drill of the embodiment of the present application with the outer shell removed;

[0035] Figure 6 Figure 5 is a perspective view of the clamping portion of the gun drill of the embodiment of the present application with the outer shell removed;

[0036] Figure 6a is a perspective view of the clamping portion of the gun drill of the embodiment of the present application with the outer shell removed; Figure 6

[0037] is a perspective view of the clamping portion of the gun drill of the embodiment of the present application with the outer shell removed; Figure 7

[0038] is a perspective view of the clamping portion of the gun drill of the embodiment of the present application with the outer shell removed; Figure 8 DETAILED DESCRIPTION

[0039] ​​​​The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0040] This application discloses a portable gun drill, which includes a handle, a main housing on one side of the handle, and a storage portion on the side of the handle away from the main housing for installing a battery pack, the battery pack being partially embedded / inserted into the handle; a drive assembly is disposed inside the main housing, and a clamping portion is mounted on one side of the housing; the clamping portion includes a first clamping component, a hollow support base, a bushing, and a second clamping component, the second clamping component being connected to the drive assembly (gearbox), the bushing being sleeved on the support base, the support base being sleeved on the second clamping component and coaxially disposed with the second clamping component, the end of the second clamping component facing the support base having a cavity for receiving a working head passing through the support base; the first clamping components are spaced apart circumferentially along the support base sleeve, and rotating the bushing moves one clamping component to clamp or release the working head.

[0041] Preferably, the clamping part includes a first clamping component, a hollow support base, a bushing, and a second clamping component, which is connected to the drive assembly. The first or second clamping component can clamp the working head, allowing the gun drill to be compatible with two types / connectors of working heads. Tool-free switching is possible when changing working heads, broadening the application range of the gun drill. By optimizing the structure, the second clamping component also functions as an output shaft, shortening the axial length of the gun drill and reducing its overall length. A snap-fit ​​design on the main housing facilitates user carrying.

[0042] Next, we will combine the appendix Figures 1-8 To describe the gun drill proposed in this application.

[0043] like Figure 1 and Figure 2 The image shown is a three-dimensional schematic diagram of a gun drill according to an embodiment of this application; Figure 2a for Figure 2 A cross-sectional schematic diagram.

[0044] The gun drill 100 includes a handle 110, with a main housing 120 on one side of the handle 110. A battery pack 200 is mounted on the side of the handle 110 away from the main housing 120. A portion of the battery pack 200 is embedded within the handle 110. The battery pack 120 is a lithium-based rechargeable battery or a solid-state battery. The battery pack can output a current greater than 20A (e.g., 20A, 25A, 30A, 35A) when operating. The voltage of the battery pack is between 12V and 16V.

[0045] The main housing 120 is provided with a drive assembly, which includes a drive unit 180 and a reduction gearbox 170.

[0046] The output end of the driving device 180 is connected to a reduction box 170, and the output end of the reduction box 170 is connected to a clamping part 140 for clamping a working head to perform work. Preferably, the driving device 180, the reduction box 170, and the clamping part 140 are coaxially arranged. The driving device can be a direct current brushless motor.

[0047] The clamping part 140 includes a housing 141, a support seat 144, and a shaft sleeve 145.

[0048] The housing 141 is provided with a cavity 141a, and the housing 141 is provided with the support seat 144. Preferably, the housing 141 and the support seat 144 are coaxially arranged.

[0049] The support seat 144 is provided with a plurality of inclined through holes 144a arranged at intervals in the circumferential direction, and a first clamping part is embedded in the through holes 144a. The first clamping part includes a clamping jaw 142 provided with a thread 142a, and the shaft sleeve 145 is sleeved on the support seat 144, and the thread 145a on the inner wall of the shaft sleeve 145 is engaged with the thread 142a on the clamping jaw 142.

[0050] The first clamping part includes at least two clamping jaws 142 embedded in the through holes 144a.

[0051] The support seat 144 is hollow, one side of the through hole 144a extends to the hollow cavity, one end of the clamping jaw 142 is embedded in the through hole 144a and can protrude from the end of the shaft sleeve 144, and a plurality of clamping jaws 142 are combined to clamp the working head.

[0052] The threads 142a (first threads) of the plurality of clamping jaws 142 are respectively engaged with the threads 145a (second threads) on the inner wall of the shaft sleeve 145, the shaft sleeve 145 is rotated, the clamping jaws 142 are synchronously moved to clamp the working head (not shown in the figure).

[0053] The combination of the plurality of clamping jaws 142 is in a spread-finger shape or a horn shape. In this embodiment, the first clamping part includes three clamping jaws 142. The clamping jaws 142 are arranged at intervals along the circumferential direction of the support seat 144.

[0054] The support seat 144 has a receiving cavity 144b extending in the axial direction thereof, the side wall of the receiving cavity 144b has a thread 144b1 (third thread), the thread 144b1 is engaged with a thread 160a (fourth thread) on the outer side of a second clamping part 160, the second clamping part 160 is partially embedded in the receiving cavity 144b, the second clamping part 160 has a connecting end 162 away from the thread 160a, and the connecting end 162 is connected to the output end of the reduction box 170. The second clamping part 160 is coaxially arranged with the output end of the reduction box 170. The support seat 144 is coaxially arranged with the second clamping part 160.

[0055] The screw thread 160a side of the second clamping component 160 has a cavity 161, the radial cross section of which is a regular polygon (such as a regular hexagon), which can embed and fix the working head. The second clamping component 160 can fix the working head while serving as an output shaft (shortening the length in the axial direction, shortening the length in the axial direction of the gun drill, facilitating carrying), through the design, the gun drill can match two types of working heads (one type of working head has a regular quadrilateral or hexagonal structure at the end, and the other type of working head has a structure matching the clamping jaw in the middle), widening the application range of the gun drill.

[0056] The outer side of the support seat 144 has a first protruding portion 144c protruding along the circumferential direction thereof, which is used to abut against the shaft sleeve 145 sleeved on the support seat. The outer side of the support seat 144 has a second protruding portion 144d protruding along the circumferential direction thereof, which is arranged in a spaced manner with the first protruding portion 144c. The shaft sleeve 145 and the second protruding portion 144d are arranged with a gasket 146 therebetween.

[0057] The handle 110 is provided with a trigger switch 111, which is connected to the control board (not shown) in the handle 110 through a cable, and is used to control the operation of the gun drill.

[0058] The main shell 120 is provided with an adjusting component 130, through which the output rotation speed is adjusted to perform different working conditions, preferably, the adjusting component 130 can be adjusted at two or three speeds.

[0059] The main shell 120 is provided with a recess 121, and the buckle 150 is installed on the recess 121, and the buckle 150 is arranged to facilitate carrying.

[0060] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent conversion or modification made in the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A portable gun drill, characterized by It comprises: a handle, one side of which is provided with a main housing, and the other side of which is provided with a receiving part for mounting a battery pack, and the battery pack is partially embedded in the handle; a driving assembly is arranged in the main housing, and a clamping part is mounted on one side of the main housing; the clamping part comprises a first clamping component, a hollow support seat, a shaft sleeve and a second clamping component, and the second clamping component is connected to the driving assembly, the shaft sleeve is sleeved on the support seat, the support seat is sleeved on the second clamping component and coaxially arranged with the second clamping component, and the end of the second clamping component towards the support seat is provided with a cavity for receiving a working head passing through the support seat; the first clamping component is arranged along the circumferential direction of the support seat, and rotating the shaft sleeve moves the first clamping component to clamp or release the working head.

2. The portable gun drill according to claim 1, wherein the driving assembly comprises a driving device and a speed reducer, the output end of the driving device is connected to the speed reducer, and the output end of the speed reducer is connected to the second clamping component.

3. The portable gun drill according to claim 1, wherein the clamping part comprises a housing, the support seat is arranged in the housing, and the housing is coaxially arranged with the support seat.

4. The portable gun drill according to claim 1, wherein the support seat is provided with inclined perforations spaced along the circumferential direction thereof, the first clamping component comprises at least two clamping jaws, the clamping jaws are mounted in the perforations, the clamping jaws are provided with first threads, the first threads are respectively engaged with second threads on the inner wall of the shaft sleeve, and rotating the shaft sleeve synchronously moves the clamping jaws.

5. The portable gun drill according to claim 4, wherein the first clamping component comprises three clamping jaws, the three clamping jaws are equally spaced along the circumferential direction of the support seat, and the combination of the three clamping jaws is in the shape of a mule's foot or a trumpet.

6. The portable gun drill according to claim 1, wherein one side end of the support seat is provided with a receiving cavity, the side wall of the receiving cavity is provided with third threads, and the third threads are engaged with fourth threads on the outer side of the second clamping component.

7. The portable gun drill according to claim 6, wherein the side away from the fourth threads is provided with a connecting end, and the connecting end is connected to the output end of the driving assembly.

8. The portable gun drill according to claim 6, wherein the fourth thread side of the second clamping component is provided with the cavity, and the radial cross section of the cavity is in the shape of a regular polygon.

9. The portable gun drill according to claim 8, wherein the radial cross section of the fourth thread side of the second clamping component is in the shape of a regular hexagon.

10. The portable gun drill according to claim 1, wherein the main housing is provided with a recess, and the recess is mounted with a buckle.

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