CN216729701U - Hand-held electric drill bit locking device - Google Patents
Hand-held electric drill bit locking device Download PDFInfo
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- CN216729701U CN216729701U CN202220386853.3U CN202220386853U CN216729701U CN 216729701 U CN216729701 U CN 216729701U CN 202220386853 U CN202220386853 U CN 202220386853U CN 216729701 U CN216729701 U CN 216729701U
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- drill bit
- locking sleeve
- hand
- drill
- locking
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Abstract
The utility model provides a drill bit locking device of a handheld electric drill, and belongs to the technical field of electric tools. The device includes the locking sleeve, and the locking sleeve is equipped with the internal thread, can pass through screw-thread fit with the drill chuck and be connected, is equipped with a plurality of clamp blocks in the locking sleeve, has all seted up the installation through-hole on each clamp block, and the elastic component passes the installation through-hole on each clamp block, makes each clamp block concatenate mutually, and the cross-section of clamp block is trapezoidal, and the drill chuck one end of keeping away from of locking sleeve is the toper, through rotating the locking sleeve, can compress tightly each clamp block and act together and make it be close to each other to press from both sides tight drill bit. The device simple structure, convenient operation can adjust the tight degree of drill bit clamp, prevents that it from droing or boring partially, and it is convenient to change the drill bit.
Description
Technical Field
The utility model relates to the technical field of electric tools, in particular to a drill bit locking device of a handheld electric drill.
Background
The hand-held electric drill (electric hand drill for short) is a tool for drilling holes in metal materials, wood, plastics and the like, has small volume, light weight, convenient carrying and high working efficiency, and is a common tool in daily work and life of people.
However, the drill chuck of the conventional electric hand drill generally does not have a self-locking adjusting function, and the drill bit cannot be clamped due to abrasion of the drill chuck, so that the drill chuck is loosened in the using process, deviation of drilling can be caused, even the drill bit falls off, and the safety of a user is threatened. And part of the drill bit and drill chuck with the self-locking function has the disadvantages of difficult locking and adjustment and inconvenient adjustment.
In view of the above, the utility model provides a drill bit locking device for a hand-held electric drill, which can adjust the clamping degree of a drill bit, is easier to adjust and is convenient for replacing the drill bit.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a drill bit locking device of a handheld electric drill, which can adjust the clamping degree of a drill bit, prevent the drill bit from falling off in the using process and ensure the safety of drilling operation.
The utility model provides a hand-held electric drill bit locking device, which comprises: the locking sleeve, locking sleeve one end is equipped with the internal thread, can pass through screw-thread fit with the drill chuck and be connected, be equipped with a plurality of clamp blocks in the locking sleeve, the installation through-hole has been seted up on the clamp block, and the elastic component passes each on the clamp block the installation through-hole makes each the clamp block meets, the other end of locking sleeve is the toper, and the afterbody of drill bit is installed in the drill chuck, the head of drill bit by the other end of locking sleeve stretches out, through rotating the locking sleeve can compress tightly each the clamp block makes it be close to each other to it presss from both sides tightly the drill bit.
Preferably, the number of the clamping blocks is at least three.
Preferably, the cross section of the clamping block is trapezoidal.
Preferably, the mounting through-holes penetrate through opposite side surfaces of the clamping block.
Preferably, the elastic part is a spring, the spring sequentially penetrates through the mounting through holes on the clamping blocks, and the spring is connected end to end.
Preferably, the drill chuck is in a stepped circular truncated cone shape, and external threads matched with the internal threads on the locking sleeve are arranged on the outer peripheral surface of the drill chuck.
Preferably, a drill bit mounting hole is formed in the middle of the top end of the drill chuck.
Preferably, a clamping block supporting seat is further arranged in the locking sleeve, the clamping block supporting seat is mounted at the end of the drill chuck, and the bottom of the clamping block is arranged on the clamping block supporting seat.
Preferably, the clamping block supporting seat is provided with a through hole, and the drill bit penetrates through the clamping block supporting seat and is installed in a matched mode with the drill chuck.
Preferably, the clamping block supporting seat is in a round cake shape, and the through hole is formed along the axial direction of the clamping block supporting seat.
According to the technical scheme, the locking sleeve is screwed in the direction close to the drill chuck, so that the clamping blocks can be extruded through the inner wall of the conical part at the top end of the locking sleeve, the elastic piece is compressed, the clamping blocks are close to each other, the drill bit is clamped, and the drill bit is prevented from loosening and falling or being deviated in the use process. When the locking sleeve is screwed out in the direction away from the drill chuck, the elastic piece gradually resets, the clamping blocks are mutually far away, the drill bit is loosened, and the drill bit is conveniently replaced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of the internal structure of the device (after the locking sleeve is cut).
Description of reference numerals:
1: a drill chuck; 2: a drill bit; 3: a locking sleeve; 4: a clamping block; 5: mounting a through hole; 6: an elastic member; 7: a clamping block supporting seat.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figure 1, the utility model provides a drill bit locking device of a hand-held electric drill, which is used for being matched with a drill chuck 1 of the hand-held electric drill, rotating the drill chuck 1 and a drill bit 2 together and clamping the drill bit 2. The device comprises a locking sleeve 3, wherein the locking sleeve 3 is a tubular part with one end being a conical tube and the other end being a round tube, and the round tube end of the locking sleeve 3 is provided with an internal thread which can be connected with the peripheral surface of the drill chuck 1 in a thread fit way.
A plurality of clamping blocks 4 are arranged in the locking sleeve 3, and in the embodiment, the number of the clamping blocks 4 is three and the clamping blocks are uniformly distributed in the locking sleeve 3. Each clamp splice 4 is the bar spare that the cross section is trapezoidal, the length direction of clamp splice 4 sets up along the length direction of locking sleeve 3, the afterbody of drill bit 2 is passed between by each clamp splice 4, and with 1 cooperation installation of drill chuck, the head of drill bit 2 is stretched out by keeping away from 1 one end of drill chuck of locking sleeve 3, installation through-hole 5 has been seted up on the clamp splice 4, elastic component 6 passes the installation through-hole 5 on each clamp splice 4, make each clamp splice 4 concatenate mutually, through rotating locking sleeve 3, make it advance to being close to 1 one side of drill chuck, can make the 3 inner walls of locking sleeve compress tightly each clamp splice 4, and then make each clamp splice 4 be close to each other, thereby press from both sides tight drill bit 2.
In this embodiment, the cross section of the clamping block 4 is isosceles trapezoid, the installation through holes 5 penetrate through two opposite side surfaces of the clamping block 4, and the axes of the installation through holes 5 are parallel to the top surface and the bottom surface of the clamping block 4. The elastic piece 6 is a spring, sequentially penetrates through the mounting through holes 5 formed in the clamping blocks 4, and the springs are connected end to end, so that the clamping blocks 4 are connected in series through the springs, and are synchronously close to the drill bit 2 under the extrusion action of the locking sleeve 3, and the purpose of clamping the drill bit 2 is achieved.
In this embodiment, the drill chuck 1 is in the shape of a stepped circular truncated cone, and in this embodiment, the drill chuck is a three-stepped circular truncated cone, and an external thread adapted to the internal thread of the locking sleeve 3 is disposed on the outer peripheral surface of the middle portion of the drill chuck 1. The middle part of the top end surface of the drill chuck 1 is provided with a drill bit mounting hole which is used for being matched and mounted with the drill bit 2.
In this embodiment, still be equipped with clamp splice supporting seat 7 in locking sleeve 3, clamp splice supporting seat 7 sets up in 1 top of drill chuck, and can dismantle with 1 top of drill chuck screw-thread fit and be connected, and clamp splice supporting seat 7 is arranged in to the bottom of clamp splice 4, and clamp splice supporting seat 7 is the cake form, and when clamp splice 4 was in the unclamping state, the toper section and the pipe section department of meeting of locking sleeve 3 flushed mutually with clamp splice supporting seat 7 surface. The clamping block supporting seat 7 is further provided with a through hole, the through hole is formed along the axis direction of the clamping block supporting seat 7, and the drill bit 2 penetrates through the clamping block supporting seat 7 and is installed in a matched mode with the drill chuck 1.
Before operation, after the drill bit 2 is installed, the locking sleeve 3 needs to be screwed in the direction close to the drill chuck 1, so that the clamping blocks 4 are close to each other to clamp the drill bit 2, and the drill bit 2 is prevented from loosening and falling off or deviating during use; when the drill bit 2 needs to be replaced, the locking sleeve 3 is screwed in towards the direction away from the drill chuck 1, and the clamping block 4 is far away from the drill bit 2 to be loosened under the reset action of the elastic piece 6, so that the drill bit 2 is replaced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A hand-held electric drill bit locking device, comprising: the locking sleeve, locking sleeve one end is equipped with the internal thread, can pass through screw-thread fit with the drill chuck and be connected, be equipped with a plurality of clamp blocks in the locking sleeve, the installation through-hole has been seted up on the clamp block, and the elastic component passes each on the clamp block the installation through-hole makes each the clamp block meets, the other end of locking sleeve is the toper, and the afterbody of drill bit is installed in the drill chuck, the head of drill bit by the other end of locking sleeve stretches out, through rotating the locking sleeve can compress tightly each the clamp block makes it be close to each other to it presss from both sides tightly the drill bit.
2. A hand held electric drill bit locking apparatus as claimed in claim 1 wherein the number of the clamping blocks is at least three.
3. The electric hand drill bit locking apparatus of claim 1 wherein the cross-section of the clamp block is trapezoidal.
4. The hand-held electric drill bit locking apparatus of claim 3 wherein the mounting through-holes extend through opposite sides of the clamping block.
5. The hand-held electric drill bit locking device of claim 1 wherein the resilient member is a spring, the spring passing through the mounting through-holes in each of the clamping blocks in sequence, the springs being connected end to end.
6. The locking device for the drill bit of the handheld electric drill according to claim 1, wherein the drill chuck is in a shape of a stepped circular truncated cone, and an external thread matched with the internal thread on the locking sleeve is arranged on the outer peripheral surface of the drill chuck.
7. The hand-held electric drill bit locking device of claim 6, wherein a bit mounting hole is formed in the middle of the top end of the drill chuck.
8. The hand-held electric drill bit locking device of claim 1 further comprising a clamping block support seat disposed within the locking sleeve, the clamping block support seat being mounted to an end of the drill chuck, the bottom of the clamping block being disposed on the clamping block support seat.
9. The hand-held electric drill bit locking device of claim 8 wherein the holder block support defines a through hole and the drill bit passes through the holder block support and is mounted in cooperation with the drill chuck.
10. The electric hand drill bit locking device of claim 9 wherein the insert support seat is pie shaped and the through hole is formed along the axis of the insert support seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220386853.3U CN216729701U (en) | 2022-02-23 | 2022-02-23 | Hand-held electric drill bit locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220386853.3U CN216729701U (en) | 2022-02-23 | 2022-02-23 | Hand-held electric drill bit locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216729701U true CN216729701U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220386853.3U Active CN216729701U (en) | 2022-02-23 | 2022-02-23 | Hand-held electric drill bit locking device |
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| Country | Link |
|---|---|
| CN (1) | CN216729701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116037534A (en) * | 2023-03-27 | 2023-05-02 | 方大聚能(北京)科技有限公司 | A belt cleaning device for unmanned aerial vehicle washs photovoltaic module |
-
2022
- 2022-02-23 CN CN202220386853.3U patent/CN216729701U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116037534A (en) * | 2023-03-27 | 2023-05-02 | 方大聚能(北京)科技有限公司 | A belt cleaning device for unmanned aerial vehicle washs photovoltaic module |
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