CN215615310U

CN215615310U - Universal flexible shaft type electric drill capable of being directionally adjusted

Info

Publication number: CN215615310U
Application number: CN202121323589.0U
Authority: CN
Inventors: 朱高起
Original assignee: Yongkang Bls Electric Tools Co ltd
Current assignee: Yongkang Bls Electric Tools Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-01-25
Anticipated expiration: 2031-06-15

Abstract

The utility model provides a universal flexible shaft type electric drill capable of being directionally adjusted in the technical field of drilling tools, which comprises a drilling tool body, a universal flexible shaft and a drill bit, wherein two ends of the universal flexible shaft are detachably connected with the drilling tool body and the drill bit respectively; the supporting assembly comprises a fixing part, a connecting part and an orientation part which are fixed at the end part of the universal flexible shaft; according to the utility model, through the matching between the supporting component and the universal flexible shaft, the directional supporting can be conveniently carried out on the drilling or boring direction of the drill bit according to the included angle formed between the drill bit and the mounting surface, the drilling or boring accuracy of the drill bit is improved, and through the matching between the connecting part and the fixing part, the direction of the periphery of the drill bit where the connecting part is located can be conveniently adjusted according to the specific use requirement.

Description

Universal flexible shaft type electric drill capable of being directionally adjusted

Technical Field

The utility model relates to the technical field of drilling tools, in particular to a universal flexible shaft type electric drill capable of being directionally adjusted.

Background

The electric drill is a drilling machine using electricity as power. The electric tool is a conventional product in the electric tools and is also a product of the electric tools with the largest demand.

Chinese patent CN201910633647.0 discloses a safe universal flexible shaft hand-held electric drill, which comprises an electric drill body, wherein a motor, a gearbox, a driving shaft, a first bearing and a second bearing are arranged in the electric drill body, the output end of the motor is connected with the gearbox, the output end of the gearbox is provided with the driving shaft, the driving shaft is fixed through the first bearing, the tail end of the driving shaft is clamped with a connecting shaft, the connecting shaft is fixed through the second bearing, and the connecting shaft penetrates through one end of the electric drill body and is provided with a first drill chuck; the electric drill body one end bottom is connected with the cylinder casing, the level is equipped with the third bearing in the cylinder casing, install the drive shaft in the inner circle of third bearing, the one end of drive shaft is equipped with conical gear one, conical gear is last to be connected with conical gear two, conical gear two sets up on the driving shaft, the other end of drive shaft passes cylinder casing bottom and is equipped with the second drill chuck, the one end joint of second drill chuck has universal flexible axle, and drill through universal flexible axle one end centre gripping drill bit, time saving and labor saving more, the practicality is high.

However, in the technical scheme, the drill bit can be clamped and used through the electric drill body, but the drill bit connected with the universal flexible shaft cannot be used conveniently in a narrow space due to different use conditions, and when the included angle between the turning direction of the drill bit and the mounting surface is different, the drill bit cannot be well positioned along the drilling direction or the drilling direction, so that the mounting or dismounting efficiency of screws and the like is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides the directionally adjustable universal flexible shaft type electric drill, which can directionally support the drilling or boring direction of a drill bit by matching a supporting component with a universal flexible shaft, improves the drilling or boring accuracy of the drill bit, can adjust the direction of the periphery of the drill bit where a connecting part is located by matching the connecting part with a fixing part, and is convenient to ensure that the drilling or boring directions of the drill bit are always consistent by matching the connecting part with a directional part.

In order to achieve the purpose, the utility model provides the following technical scheme: the universal flexible shaft type electric drill capable of being directionally adjusted comprises a drilling tool body, a universal flexible shaft and a drill bit, wherein two ends of the universal flexible shaft are detachably connected with the drilling tool body and the drill bit respectively; the supporting assembly comprises a fixing part, a connecting part and an orientation part which are fixed at the end part of the universal flexible shaft; the first end of connecting portion with the fixed part is connected, directional portion rotatable coupling be in between the first end and the second end of connecting portion, just directional portion get the central axis all the time with the central axis of drill bit is on same plane.

Furthermore, the connecting part comprises a rotating sleeve which is rotatably clamped on the fixed part, a mounting arm of which one end is connected with the rotating sleeve, and a rotating groove which is formed on the mounting arm; the rotating groove penetrates through the upper side and the lower side of the mounting arm, and the orientation portion is rotatably connected in the rotating groove.

Further, the fixing part comprises a fixing sleeve arranged on the universal flexible shaft and a fastening groove formed in the fixing sleeve; the rotating sleeve is sleeved in the buckling groove in a matching manner.

Furthermore, one side of the rotating sleeve is in threaded connection with an adjusting screw, and one end of the adjusting screw can be in contact with the side surface of the buckling groove.

Furthermore, the orientation part comprises a first pin rod and a second pin rod which are respectively rotatably inserted at two sides of the rotation groove, a rotation seat positioned in the rotation groove, and orientation rods vertically penetrating through the upper side and the lower side of the rotation seat; the first end of the first pin rod and the first end of the second pin rod which are positioned on the inner side of the rotating groove are respectively fixed with the two sides of the rotating seat.

Furthermore, a second end of the first pin rod, which is far away from the rotating groove, is of a threaded structure, and an adjusting screw cap is connected to the second end of the first pin rod in a threaded manner.

Furthermore, a second end of the second pin rod, which is far away from the rotating groove, is connected with a pointer, and an angle scale corresponding to the pointer is installed on the installation arm.

Furthermore, the orientation rod comprises an insertion rod, a pad disc connected with the lower end of the insertion rod and a spring sleeved on the insertion rod, the top end of the spring is connected with the bottom of the installation arm, the lower end of the spring is connected with the top of the pad disc, and the lower surface of the pad disc is perpendicular to the central axis of the insertion rod.

Furthermore, the top end of the inserted bar is connected with a limiting joint, and a length scale marking line is arranged on the side surface of the inserted bar below the limiting joint along the length direction of the inserted bar.

Furthermore, a grab handle is arranged on the upper surface of one end of the mounting arm far away from the rotating sleeve.

The utility model has the beneficial effects that:

(1) according to the utility model, through the matching between the supporting component and the universal flexible shaft, the directional supporting can be conveniently carried out on the drilling or drilling direction of the drill bit according to the included angle formed between the drill bit and the mounting surface, so that the drilling or drilling accuracy of the drill bit is improved;

(2) the utility model can adjust the direction of the periphery of the drill bit where the connecting part is located according to the specific use requirement through the matching between the connecting part and the fixing part;

(3) according to the utility model, through the matching between the connecting part and the orientation part, the central axis of the orientation part can be conveniently adjusted to be always vertical to the installation surface according to the included angle between the drilling hole and the installation surface, so that the drilling or drilling directions of the drill bit are always kept consistent.

In conclusion, the universal flexible shaft type electric drill has the advantages that the universal flexible shaft type electric drill is convenient to use, the drill bit can be always ensured to be stable and consistent along the drilling-in or drilling-out direction, and the like.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of the connection between the universal flexible shaft and the drill bit according to the present invention;

FIG. 3 is a schematic structural view of the supporting assembly with the fixing portion removed according to the present invention;

FIG. 4 is another side view of the FIG. 3 embodiment of the present invention;

FIG. 5 is a top view of the FIG. 3 embodiment of the present invention;

FIG. 6 is a schematic view of the present invention shown in FIG. 5 with the steering seat and the orientation lever removed;

fig. 7 is a schematic structural view of a fixing portion according to the present invention.

Reference numerals:

1. the drilling tool comprises a drilling tool body, 2, a universal flexible shaft, 3, a drill bit, 4 and a supporting assembly;

41. the fixing part, 42, the connecting part, 43, the orientation part, 421, the rotating sleeve, 422, the mounting arm, 423, the rotating groove, 424, the adjusting screw, 425, the grab handle, 411, the fixing sleeve, 412, the buckling groove, 431, the first pin rod, 432, the second pin rod, 433, the rotating seat, 434, the orientation rod, 435, the adjusting screw cap, 436, the pointer, 437, the angle dial, 4341, the inserted link, 4342, the pad, 4343, the spring, 4344, the limit joint, 4345 and the length scale mark line.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 equipment 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example one

As shown in fig. 1 and 2, the directionally adjustable universal flexible shaft type electric drill comprises a drilling tool body 1, a universal flexible shaft 2 and a drill bit 3, wherein two ends of the universal flexible shaft 2 are detachably connected with the drilling tool body 1 and the drill bit 3 respectively, and one end of the universal flexible shaft 2, which is connected with the drill bit 3, is provided with a supporting assembly 4 for adjusting the pressing direction of the drill bit 3;

the supporting component 4 comprises a fixing part 41 fixed at the end part of the universal flexible shaft 2, a connecting part 42 and an orientation part 43;

the first end of the connecting portion 42 is connected to the fixing portion 41, the orientation portion 43 is rotatably connected between the first end and the second end of the connecting portion 42, and the central axis of the orientation portion 43 is always on the same plane as the central axis of the drill bit 3.

Through the above, in the process of screwing or disassembling screws and the like by using the drilling tool body 1, the universal flexible shaft 2 and the drill bit 3, the drilling tool body 1 provides a rotating force to the universal flexible shaft 2, so that the drill bit 3 can be driven to rotate at the other end of the universal flexible shaft 2, and the drill bit 3 is inserted into the joint of the screws and the like, thereby easily completing the screwing or disassembling work; it should be noted that when the drill bit 3 connected with the universal flexible shaft 2 works, the pressing direction of the drill bit 3 can be adjusted by using the supporting component 4, so that the drill bit can be conveniently used according to the drilling direction; specifically, when the supporting assembly 4 is used, the drilling direction of the drill bit 3 is adjusted according to the turning direction, and in order to better realize that the drill bit 3 works along the preset drilling direction, the included angle between the directional part 43 and the drill bit 3 is adjusted on the connecting part 42, so that the drill bit 3 is ensured to move along the pressing direction of the drill bit 3 all the time in the process of drilling the drill bit 3; for example, during the drilling of the drill 3, since the angle α exists between the screw drilling direction of the mounting hole and the mounting surface, when the worker installs or removes the screw in the mounting hole, the drill 3 may be inserted into the screw joint of the mounting hole, the orientation portion 43 may abut against the mounting surface, and the central axis direction of the orientation portion 43 may be perpendicular to the mounting surface, so that the drilling of the drill 3 in the angle α direction with the mounting surface may be always ensured during the drilling of the drill 3.

As shown in fig. 2 to 6, the connecting portion 42 includes a rotating sleeve 421 rotatably clamped on the fixing portion 41, a mounting arm 422 having one end connected to the rotating sleeve 421, and a rotating groove 423 formed on the mounting arm 422; the rotation groove 423 penetrates upper and lower sides of the mounting arm 422, and the orientation part 43 is rotatably coupled in the rotation groove 423.

In this embodiment, the rotating sleeve 421 clamped on the fixing portion 41 can facilitate the adjustment of the circumferential direction of the connecting portion 42 on the drill bit 3 as required, and it should be noted that, during the rotation of the orientation portion 43, the rotation groove 423 is used for limiting the rotation, thereby facilitating the improvement of the stability of the orientation portion 43 during use.

As shown in fig. 7, the fixing portion 41 includes a fixing sleeve 411 mounted on the universal flexible shaft 2 and a fastening slot 412 provided on the fixing sleeve 411; the rotating sleeve 421 is sleeved in the fastening groove 412 in a matching manner.

It should be noted that, in the process of rotating the rotating sleeve 421, the rotating sleeve 421 is sleeved on the fastening groove 412 formed on the outer surface of the fixing sleeve 411 in a matching manner, so that the rotation of the mounting arm 422 can be conveniently realized, the orientation of the directional portion 43 on one side of the drill bit 3 can be adjusted, and the use under different working conditions can be conveniently realized.

As shown in fig. 3 to 5, an adjusting screw 424 is threadedly coupled to one side of the rotary sleeve 421, and one end of the adjusting screw 424 may contact a side surface of the catching groove 412.

In this embodiment, after the rotation adjustment of the rotating sleeve 421 on the fastening groove 412 is completed, the adjusting screw 424 is rotated, so that one end of the adjusting screw 424 is pressed on the side surface of the fastening groove 412, thereby facilitating the use of the rotating sleeve 421 and the fastening groove 412 on the premise of relative fixation, and improving the stability of the connecting portion 42 during use.

As shown in fig. 3 to 6, the orientation portion 43 includes a first pin rod 431 and a second pin rod 432 rotatably inserted into both sides of the rotation groove 423, a rotation seat 433 positioned in the rotation groove 423, and an orientation rod 434 vertically penetrating through both upper and lower sides of the rotation seat 433; a first end of the first pin 431 and a first end of the second pin 432, which are positioned inside the rotation groove 423, are fixed to both sides of the rotation base 433, respectively.

It should be noted that, in this embodiment, by movably inserting the orientation lever 434 into the rotating seat 433, when the apparatus is used, the orientation lever 434 can be ensured to be perpendicular to the mounting surface, and specifically, when the orientation lever 434 is perpendicular to the mounting surface in advance, the rotating seat 433 can rotate around the central axes of the first pin 431 and the second pin 432 in the rotating groove 423, so as to achieve the rotation adjustment of the orientation lever 434.

As shown in fig. 5 and 6, a second end of the first pin 431, which is far away from the rotation groove 423, is in a screw structure, and an adjustment screw cap 435 is threadedly coupled to the second end of the first pin 431.

It should be noted that after the rotation adjustment of the orientation lever 434 is completed, the adjustment screw cap 435 on the first pin 431 is rotated to pull the first pin 431 to drag the rotation base 433 to abut against the inner sidewall of the rotation groove 423, so as to fix the rotation base 433 in the rotation groove 423.

As shown in fig. 3, a pointer 436 is connected to a second end of the second pin 432 away from the rotation groove 423, and an angle dial 437 corresponding to the pointer 436 is mounted on the mounting arm 422.

In this embodiment, when the orientation lever 434 is adjusted by rotation, the rotation base 433 can also rotate along with the rotation, and when the rotation base 433 rotates along with the rotation, the second pin 432 can be driven to rotate along with the rotation, so as to drive the pointer 436 to rotate along with the synchronous rotation, so that the pointer 436 can rotate to a certain angle scale of the angle scale 437, and then the size of the included angle between the drilling direction of the drill bit 3 and the installation surface can be conveniently known.

As shown in fig. 2-5, a grip 425 is surface-mounted on an end of the mounting arm 422 remote from the rotating sleeve 421.

In this embodiment, by providing the handle 425 on the mounting arm 422, the handle 425 can be gripped by a hand during the use of the device, so as to better improve the stability of the drill 3 during the operation.

Example two

As shown in fig. 2 to 4, in which the same or corresponding components as in the first embodiment are denoted by the same reference numerals as in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment in that:

as shown in fig. 2 and 4, the orientation rod 434 includes a plug rod 4341, a pad 4342 connected to the lower end of the plug rod 4341, and a spring 4343 sleeved on the plug rod 4341, wherein the top end of the spring 4343 is connected to the bottom of the mounting arm 422, the lower end of the spring 4343 is connected to the top of the pad 4342, and the lower surface of the pad 4342 is perpendicular to the central axis of the plug rod 4341.

In this embodiment, the drill 3 is inserted into the mounting hole to adjust the screw by vertically contacting the lower surface of the pad 4342 with the outer surface of the mounting surface, and at the same time, as the drill drills in or out, the spring 4343 adjusts the position of the pad 4342 by connecting the mounting arm 422 and the pad 4342 with the spring 4343, so that the pad 4342 can be tightly attached to the mounting surface.

As shown in fig. 3, a limit joint 4344 is connected to a top end of the insertion rod 4341, and a length scale marking 4345 is disposed on a side surface of the insertion rod 4341 below the limit joint 4344 along a length direction of the insertion rod 4341.

It is worth to be noted that, in this embodiment, the length scale marking 4345 is used to facilitate the observation of the specific drilling depth information when the drill bit 3 drills, so as to better improve the use of the device.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The universal flexible shaft type electric drill capable of being directionally adjusted comprises a drilling tool body (1), a universal flexible shaft (2) and a drill bit (3), wherein two ends of the universal flexible shaft (2) are detachably connected with the drilling tool body (1) and the drill bit (3) respectively, and the universal flexible shaft type electric drill is characterized in that a supporting component (4) used for adjusting the pressing direction of the drill bit (3) is mounted at one end, connected with the drill bit (3), of the universal flexible shaft (2);

the supporting assembly (4) comprises a fixing part (41) fixed at the end part of the universal flexible shaft (2), a connecting part (42) and a directional part (43);

the first end of connecting portion (42) with fixed part (41) are connected, orientation portion (43) rotatable coupling be in between the first end and the second end of connecting portion (42), just orientation portion (43) get the central axis always with the central axis of drill bit (3) is on same plane.

2. An directionally adjustable, universal, flexible, electric drill according to claim 1, wherein said coupling portion (42) comprises a rotatable sleeve (421) rotatably snap-fitted over said fixed portion (41), a mounting arm (422) having one end connected to said rotatable sleeve (421), and a rotatable slot (423) formed in said mounting arm (422); the rotating groove (423) penetrates through the upper side and the lower side of the mounting arm (422), and the orientation part (43) is rotatably connected in the rotating groove (423).

3. An directionally adjustable, flexible, universal electric drill according to claim 2, characterized in that said fixed portion (41) comprises a fixed sleeve (411) mounted on said flexible, universal shaft (2) and a snap-fit groove (412) provided in said fixed sleeve (411); the rotating sleeve (421) is sleeved in the buckle groove (412) in a matching manner.

4. An directionally adjustable, universal, flexible, electric drill according to claim 3, characterized in that an adjustment screw (424) is threadedly attached to one side of said rotating sleeve (421), and one end of said adjustment screw (424) is in contact with a side surface of said snap groove (412).

5. An directionally adjustable, flexible, electric universal drill according to claim 2 wherein said orientation portion (43) comprises a first pin (431) and a second pin (432) rotatably inserted into said rotation slot (423) at either side thereof, a rotation base (433) disposed within said rotation slot (423), and an orientation rod (434) vertically penetrating said rotation base (433) at both upper and lower sides thereof; the first end of the first pin rod (431) and the first end of the second pin rod (432) which are positioned at the inner side of the rotating groove (423) are respectively fixed with the two sides of the rotating seat (433).

6. An directionally adjustable, flexible shaft electric drill according to claim 5, wherein a second end of said first pin (431) remote from said turning groove (423) is of a threaded configuration and an adjustment screw cap (435) is threadedly attached to a second end of said first pin (431).

7. An directionally adjustable, flexible, electric drill according to claim 5, characterized in that a pointer (436) is attached to a second end of said second pin (432) remote from said turning slot (423) and an angle dial (437) corresponding to said pointer (436) is mounted on said mounting arm (422).

8. An directionally adjustable, universal, flexible shaft electric drill according to claim 5, wherein said orientation rod (434) comprises a plunger (4341), a pad (4342) connected to a lower end of said plunger (4341), and a spring (4343) fitted over said plunger (4341), wherein a top end of said spring (4343) is connected to a bottom portion of said mounting arm (422), a lower end of said spring (4343) is connected to a top portion of said pad (4342), and a lower surface of said pad (4342) is perpendicular to a central axis of said plunger (4341).

9. The directionally adjustable, universal, flexible shaft electric drill according to claim 8, wherein a limit joint (4344) is attached to the top end of the inserted rod (4341), and a length scale marking (4345) is disposed along the length direction of the inserted rod (4341) on the side surface of the inserted rod (4341) below the limit joint (4344).

10. An directionally adjustable, flexible, electrically powered drill according to claim 2, characterized in that a grip (425) is surface mounted on an end of said mounting arm (422) remote from said rotatable sleeve (421).