阅读说明：本技术 一种可更换刀头的螺丝刀 (Screwdriver with replaceable tool bit ) 是由 马长俊 于 2020-07-16 设计创作，主要内容包括：本发明公开了一种可更换刀头的螺丝刀,包括机体,所述换刀空间的左侧设有带轮空间,所述带轮空间的右侧设有传动空间,所述传动空间的上侧设有滑动空间,所述滑动空间的的右侧设有啮合空间,所述啮合空间的右侧设有大扇形齿轮空间,设备中设有伸缩装置可以将螺丝刀的刀头收入到设备中,防止有人失误伤到自己或是他人,抓取装置可以抓取螺丝刀的刀头。(The invention discloses a screwdriver with replaceable tool bits, which comprises a machine body, wherein a belt wheel space is arranged on the left side of a tool changing space, a transmission space is arranged on the right side of the belt wheel space, a sliding space is arranged on the upper side of the transmission space, an engagement space is arranged on the right side of the sliding space, a large sector gear space is arranged on the right side of the engagement space, a telescopic device is arranged in equipment, the tool bits of the screwdriver can be taken into the equipment, the situation that the screwdriver or others are injured by people due to errors is prevented, and a grabbing device can grab the tool bits of the screwdriver.)

1. The utility model provides a screwdriver of removable tool bit, includes the organism, its characterized in that: be equipped with the tool changing space in the organism, the left side in tool changing space is equipped with the band pulley space, the right side in band pulley space is equipped with the transmission space, the upside in transmission space is equipped with the slip space, the right side in slip space is equipped with the meshing space, the right side in meshing space is equipped with big sector gear space, big sector gear space the slip space in be equipped with the telescoping device that is used for flexible screw tool bit, the telescoping device includes fixed mounting at the motor power in big sector gear space left wall, motor power right side power is connected with the axis of rotation that the left wall in big sector gear space rotates to be connected, fixedly connected with rotates main bevel gear in the axis of rotation, the back wall in big sector gear space rotates and is connected with big sector gear shaft, big sector gear shaft front and back side fixedly connected with big sector gear, belt pulley space, the right, Rotate vice bevel gear, rotate vice bevel gear surplus rotate meshing between the main bevel gear, sliding connection has the case of snatching in the big sector gear space, it is surplus to snatch the case be connected with compression spring between the big sector gear space right wall, it extends to run through to snatch the case left the big sector gear space left wall enters into in the sliding space, it is equipped with little sector gear space in the case to snatch, little sector gear space left side is equipped with snatchs the space, the sliding space rear side is equipped with the spout, it is equipped with the grabbing device who is used for snatching screwdriver head in the case to snatch, the band pulley space the tool changing space be equipped with the rotating device who is used for rotating the screwdriver between the transmission space, be equipped with the change device who is used for following the screwdriver head in the tool changing space.

2. The screwdriver with replaceable bits as claimed in claim 1, wherein: the gripping device comprises a transmission shaft which is arranged on the left side surface of the transmission shaft and is rotationally connected with the right wall of the meshing space, a rotary main bevel gear is fixedly connected on the transmission shaft, a rotary main belt wheel shaft is rotationally connected on the bottom wall of the meshing space, a rotary auxiliary bevel gear and a rotary main belt wheel are fixedly connected on the upper side and the lower side of the rotary main belt wheel shaft, the rotary auxiliary bevel gear is meshed with the rotary main bevel gear, a sliding shaft is rotationally connected on the top wall of the meshing space, the sliding shaft extends upwards to penetrate through the top wall of the meshing space to enter the small sector gear space and is rotationally connected between the bottom walls of the small sector gear space, the upper side and the lower side of the sliding shaft are fixedly connected with the meshing main bevel gear and the rotary auxiliary belt wheel, an elastic belt is connected between the rotary auxiliary belt wheel and the rotary main belt wheel, and the rear wall of the small sector gear, the front side and the rear side of the small sector gear shaft are fixedly connected with a small sector gear and a meshed auxiliary bevel gear, the meshed auxiliary bevel gear is meshed with the meshed main bevel gear, the small sector gear shaft extends backwards to penetrate through the rear wall of the space of the small sector gear to enter the sliding chute and is in sliding connection with the upper wall and the lower wall of the sliding chute, the small sector gear can be meshed with the grabbing palms, the grabbing palms are rotationally connected with rotating pins in an up-and-down symmetrical manner, grabbing clamps are respectively and fixedly connected onto each rotating pin, a large telescopic rod is connected between the two grabbing clamps, a grabbing block is connected in the grabbing space in a sliding manner, a small telescopic rod is connected between the grabbing block and the grabbing palms, a small telescopic rod is connected between the small telescopic rod and the grabbing palms, and the grabbing block extends rightwards to penetrate through the left wall of the grabbing space, the grabbing block continuously extends rightwards to penetrate through the left wall of the sliding space to enter the tool changing space, and the right wall of the grabbing space is provided with releasing grooves in an up-down symmetrical mode.

3. The screwdriver with replaceable bits as claimed in claim 1, wherein: the rotating device comprises a fixedly installed active motor, the left side surface of the active motor is rotatably connected with a left motor shaft which is rotatably connected with the right wall of the belt wheel space, the left motor shaft is fixedly connected with a linkage main belt wheel, the right wall of the belt wheel space is rotatably connected with a transmission shaft, the transmission shaft extends rightwards to penetrate through the right wall of the belt wheel space and enter the book searching transmission space, the left side and the right side of the transmission shaft are fixedly connected with a linkage auxiliary belt wheel and a transmission main belt wheel, a friction belt is connected between the linkage main belt wheel and the linkage auxiliary belt wheel, the right wall of the transmission space is rotatably connected with a driving shaft, the driving shaft extends leftwards to penetrate through the left wall of the transmission space and enter the cutter changing space and is rotatably connected with the right wall of the cutter changing space, the left side and the right side of the driving shaft are rotatably connected with a rotating gear and a cutter changing transmission auxiliary belt, and a transmission belt is connected, the left side of the grabbing block is rotatably connected with a protection box, the protection box is rotatably connected with a protection rotating shaft, the protection rotating shaft extends leftwards to penetrate through the left side face of the protection box and enters the tool changing space, the left side and the right side of the protection rotating shaft are fixedly connected with a large electromagnet and a protection rotating wheel, the protection rotating wheel is abutted against the protection box, and the rotating gear can be meshed with the protection box.

4. The screwdriver with replaceable bits as claimed in claim 1, wherein: the replacing device comprises a right motor shaft which is installed between the right side face of the source motor and the right wall of the tool changing space in a rotating mode, a cutter head disc is fixedly connected to the right motor shaft, four small electromagnets are fixedly connected to the cutter head disc, each small electromagnet is connected with a screwdriver bit in a sliding mode, and the right side of each screwdriver bit is fixedly connected with a powerful magnet.

Technical Field

The invention relates to the field of electric tools, in particular to a screwdriver with a replaceable screwdriver bit.

Background

The screwdriver is a common tool for screwing a screw to be in place, and generally comprises a thin wedge-shaped head which can be inserted into a slot or a notch of a screw head, the screwdriver is used for screwing the screw by utilizing the working principle of a wheel shaft, and the larger the wheel is, the more labor is saved, so that a screwdriver with a thick handle is more labor-saving than a screwdriver with a thin handle for screwing the screw, and a screwdriver is used for one screw at present, and a plurality of screwdrivers are required to be carried during working, so that the time and the labor are wasted.

Disclosure of Invention

The present invention is directed to a screwdriver with replaceable bits, so as to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a screwdriver of removable tool bit, includes the organism, be equipped with the tool changing space in the organism, the left side in tool changing space is equipped with the band pulley space, the right side in band pulley space is equipped with the transmission space, the upside in transmission space is equipped with the slip space, the right side in slip space is equipped with the meshing space, the right side in meshing space is equipped with big sector gear space, big sector gear space be equipped with the telescoping device that is used for flexible screwdriver bit in the slip space, the telescoping device includes the motor power of fixed mounting in big sector gear space left wall, motor power right flank power is connected with more than big sector gear space left wall rotates the axis of rotation of connecting, fixedly connected with rotation main bevel gear in the axis of rotation, the back wall in big sector gear space rotates and is connected with big sector gear shaft, big sector gear shaft front and back side fixedly connected with big sector gear, the left sector gear, Rotate vice bevel gear, rotate vice bevel gear surplus rotate meshing between the main bevel gear, sliding connection has the case of snatching in the big sector gear space, it is surplus to snatch the case be connected with compression spring between the big sector gear space right wall, it extends to run through to snatch the case left the big sector gear space left wall enters into in the sliding space, it is equipped with little sector gear space in the case to snatch, little sector gear space left side is equipped with snatchs the space, the sliding space rear side is equipped with the spout, it is equipped with the grabbing device who is used for snatching screwdriver head in the case to snatch, the band pulley space the tool changing space be equipped with the rotating device who is used for rotating the screwdriver between the transmission space, be equipped with the change device who is used for following the screwdriver head in the tool changing space.

Preferably, the gripping device comprises a transmission shaft which is rotatably connected with the left side surface of the transmission shaft and the right wall of the meshing space through power, a rotary main bevel gear is fixedly connected to the transmission shaft, a rotary main belt wheel shaft is rotatably connected to the bottom wall of the meshing space, a rotary auxiliary bevel gear and a rotary main belt wheel are fixedly connected to the upper side and the lower side of the rotary main belt wheel shaft, the rotary auxiliary bevel gear is meshed with the rotary main bevel gear, a sliding shaft is rotatably connected to the top wall of the meshing space, the sliding shaft extends upwards to penetrate through the top wall of the meshing space to enter the small sector gear space and is rotatably connected to the bottom wall of the small sector gear space, a meshing main bevel gear and a rotary auxiliary belt wheel are fixedly connected to the upper side and the lower side of the sliding shaft, an elastic belt is connected between the rotary auxiliary belt wheel and the rotary main belt wheel, and a small sector gear shaft is rotatably connected to the, the front side and the rear side of the small sector gear shaft are fixedly connected with a small sector gear and a meshed auxiliary bevel gear, the meshed auxiliary bevel gear is meshed with the meshed main bevel gear, the small sector gear shaft extends backwards to penetrate through the rear wall of the space of the small sector gear to enter the sliding chute and is in sliding connection with the upper wall and the lower wall of the sliding chute, the small sector gear can be meshed with the grabbing palms, the grabbing palms are rotationally connected with rotating pins in an up-and-down symmetrical manner, grabbing clamps are respectively and fixedly connected onto each rotating pin, a large telescopic rod is connected between the two grabbing clamps, a grabbing block is connected in the grabbing space in a sliding manner, a small telescopic rod is connected between the grabbing block and the grabbing palms, a small telescopic rod is connected between the small telescopic rod and the grabbing palms, and the grabbing block extends rightwards to penetrate through the left wall of the grabbing space, the grabbing block continuously extends rightwards to penetrate through the left wall of the sliding space to enter the tool changing space, and the right wall of the grabbing space is provided with releasing grooves in an up-down symmetrical mode.

Preferably, the rotating device comprises a fixedly installed active motor, a left motor shaft rotationally connected with the right wall of the belt wheel space is connected to the left side surface of the active motor, a linkage main belt wheel is fixedly connected to the left motor shaft, a transmission shaft is rotationally connected to the right wall of the belt wheel space, the transmission shaft extends rightwards to penetrate through the right wall of the belt wheel space to enter the book searching transmission space, a linkage auxiliary belt wheel and a transmission main belt wheel are fixedly connected to the left side and the right side of the transmission shaft, a friction belt is connected between the linkage main belt wheel and the linkage auxiliary belt wheel, a driving shaft is rotationally connected to the right wall of the transmission space, the driving shaft extends leftwards to penetrate through the left wall of the transmission space to enter the tool changing space and is rotationally connected with the right wall of the tool changing space, and a rotating gear and a transmission auxiliary belt wheel are rotationally connected to the left side and the right side, the tool changing device is characterized in that a transmission belt is connected between the transmission main belt wheel and the transmission auxiliary belt wheel, a protection box is rotatably connected to the left side of the grabbing block, a protection rotating shaft is rotatably connected in the protection box, the protection rotating shaft extends leftwards and penetrates through the left side face of the protection box to enter the tool changing space, a large electromagnet and a protection rotating wheel are fixedly connected to the left side and the right side of the protection rotating shaft, the protection rotating wheel is abutted against the protection box, and the rotating gear can be meshed with the protection box.

Preferably, the replacing device comprises a right motor shaft which is installed between the right side face of the source motor and the right wall of the tool changing space in a rotating mode, a tool bit disc is fixedly connected to the right motor shaft, four small electromagnets are fixedly connected to the tool bit disc, screwdriver bits are respectively connected to the small electromagnets in a sliding mode, and powerful magnets are respectively fixedly connected to the right sides of the screwdriver bits.

In conclusion, the beneficial effects of the invention are as follows: the invention relates to a screwdriver with replaceable screwdriver bits, wherein a telescopic device is arranged in the screwdriver, the screwdriver bits of the screwdriver can be taken into the screwdriver, the screwdriver bits can be prevented from being injured or injured by people by mistake, a grabbing device can grab the screwdriver bits to finish the screwdriver bit replacement, the screwdriver bits of different screwdrivers can be selected by the replacing device, a rotating device can finish the screwing work of screws, and meanwhile, a protecting device can protect the screwdriver from being screwed continuously after the screws are screwed.

Drawings

In order to more clearly illustrate the embodiments of the 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 only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a front view, in full section, of a screwdriver with replaceable bits according to the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

fig. 4 is a left side sectional view of the protective case of fig. 1 according to the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, front and rear directions described below correspond to the front, back, left, right, top and bottom directions of the view direction of fig. 1, fig. 1 is a front view of the apparatus of the present invention, and the directions shown in fig. 1 correspond to the front, back, left, right, top and bottom directions of the apparatus of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a screwdriver with replaceable tool bits comprises a screwdriver body 21, a tool changing space 22 is arranged in the screwdriver body 21, a belt wheel space 27 is arranged on the left side of the tool changing space 22, a transmission space 40 is arranged on the right side of the belt wheel space 27, a sliding space 45 is arranged on the upper side of the transmission space 40, an engagement space 54 is arranged on the right side of the sliding space 45, a large sector gear space 51 is arranged on the right side of the engagement space 54, a telescopic device for telescopic screwdriver bits is arranged in the large sector gear space 51 and the sliding space 45, the telescopic device comprises a power motor 52 fixedly arranged on the left wall of the large sector gear space 51, the right side face of the power motor 52 is in power connection with a rotating shaft 50 in rotatable connection with the left wall of the large sector gear space 51, a rotating main bevel gear 19 is fixedly connected to the rotating shaft 50, and a large sector gear shaft 48 is rotatably connected to the rear wall of the large sector, the front side and the rear side of the large sector gear shaft 48 are fixedly connected with a large sector gear 49 and a rotary auxiliary bevel gear 20, the rotary auxiliary bevel gear 20 is engaged with the rotary main bevel gear 19, the large sector gear space 51 is connected with a grabbing box 46 in a sliding manner, the grabbing box 46 is connected with a compression spring 47 between the right walls of the large sector gear space 51, the grabbing box 46 extends leftwards to penetrate through the left wall of the large sector gear space 51 to enter the sliding space 45, the grabbing box 46 is provided with a small sector gear space 62, the left side of the small sector gear space 62 is provided with a grabbing space 56, the rear side of the sliding space 45 is provided with a sliding groove 71, the grabbing box 46 is provided with a grabbing device for grabbing screwdriver bits, and a rotating device for rotating a screwdriver is arranged among the belt wheel space 27, the tool changing space 22 and the transmission space 40, a replacement device for replacing the screwdriver bit is arranged in the tool changing space 22.

In addition, in one embodiment, the gripping device includes a transmission shaft 53 which is power-installed on the left side surface of the transmission shaft 53 and is rotatably connected with the right wall of the meshing space 54, a rotary primary bevel gear 55 is fixedly connected to the transmission shaft 53, a rotary primary pulley shaft 68 is rotatably connected to the bottom wall of the meshing space 54, a rotary secondary bevel gear 69 and a rotary primary pulley 70 are fixedly connected to the upper and lower sides of the rotary primary pulley shaft 68, the rotary secondary bevel gear 69 is meshed with the rotary primary bevel gear 55, a sliding shaft 65 is rotatably connected to the top wall of the meshing space 54, the sliding shaft 65 extends upwards to penetrate through the top wall of the meshing space 54 to enter the small sector gear space 62 and is rotatably connected between the bottom walls of the small sector gear space 62, a meshing primary bevel gear 79 and a rotary secondary pulley 66 are fixedly connected to the upper and lower sides of the sliding shaft 65, an elastic belt 67 is connected between the rotating secondary belt pulley 66 and the rotating main belt pulley 70, a small sector gear shaft 63 is connected to the rear wall of the small sector gear space 62 in a rotating manner, small sector gears 64 and meshing secondary bevel gears 76 are fixedly connected to the front and rear sides of the small sector gear shaft 63, the meshing secondary bevel gears 76 are meshed with the meshing main bevel gears 79, the small sector gear shaft 63 extends backwards to penetrate through the rear wall of the small sector gear space 62 to enter the sliding groove 71 and are connected with the upper and lower walls of the sliding groove 71 in a sliding manner, the small sector gears 64 can be meshed with the grabbing palms 57, the grabbing palms 57 are connected with rotating pins 59 in a vertically symmetrical manner, grabbing clamps 60 are respectively and fixedly connected to each rotating pin 59, a large telescopic rod 58 is connected between the two grabbing clamps 60, and grabbing blocks 36 are connected in the grabbing space 56 in a sliding manner, snatch the piece 36 with it is connected with little telescopic link 61 to snatch between the palm 57, little telescopic link 61 with it is connected with little telescopic link 61 to snatch between the palm 57, it extends to the right to snatch the piece 36 and runs through it enters into sliding space 45 to snatch the left wall in space 56, it continues to extend to the right to snatch the piece 36 and runs through the left wall in sliding space 45 enters into tool changing space 22, what snatch the right wall longitudinal symmetry of space 56 is equipped with and releases groove 18.

In addition, in one embodiment, the rotating device includes a fixedly installed active motor 33, a left motor shaft 29 rotatably connected to a left side surface of the active motor 33 and rotatably connected to a right wall of the pulley space 27, a linkage primary pulley 28 fixedly connected to the left motor shaft 29, a transmission shaft 38 rotatably connected to a right wall of the pulley space 27, the transmission shaft 38 extending rightward to penetrate through the right wall of the pulley space 27 to enter a book searching transmission space 40, a linkage secondary pulley 31 and a transmission primary pulley 39 fixedly connected to left and right sides of the transmission shaft 38, a friction belt 30 connected between the linkage primary pulley 28 and the linkage secondary pulley 31, a driving shaft 44 rotatably connected to a right wall of the transmission space 40, the driving shaft 44 extending leftward to penetrate through a left wall of the transmission space 40 to enter the tool changing space 22 and rotatably connected to the right wall of the tool changing space 22, the side rotation is connected with running gear 43, moves vice pulley 42 about drive shaft 44, move the main pulley 39 with move between the vice pulley 42 and be connected with drive belt 41, it is connected with guard box 35 to snatch 36 left side rotation, the swivelling joint has protection pivot 26 in the guard box 35, protection pivot 26 extends to run through left the left surface of guard box 35 enters into in the tool changing space 22, side fixedly connected with big electro-magnet 25, protection runner 73 about protection pivot 26, protection runner 73 with butt between the guard box 35, running gear 43 can with the guard box 35 meshing.

In addition, in one embodiment, the replacing device comprises a right motor shaft 34 which is rotatably connected between the right side surface of the source motor 33 and the right wall of the tool changing space 22 through power, a head disc 17 is fixedly connected to the right motor shaft 34, four small electromagnets 37 are fixedly connected to the head disc 17, a screwdriver head 23 is respectively slidably connected to each small electromagnet 37, and a powerful magnet 24 is respectively fixedly connected to the right side of each screwdriver head 23.

In the initial state, the grabbing box 46 is located on the right side of the sliding space 45, the small sector gear 64 is not meshed with the grabbing palm 57, the small telescopic rod 61 is in a compressed state, the two grabbing clamps 60 clamp the grabbing block 36 and are located on the right side of the middle of the grabbing space 56, and the large sector gear 49 is meshed with the grabbing box 46.

When screwing is required, the source motor 33 is reversely activated to rotate the right motor shaft 34 to rotate the head disk 17 to rotate the screwdriver bit 23 to be used to the upper side of the tool changing space 22, the power motor 52 is forwardly activated to rotate the transmission shaft 53 to rotate the rotary main bevel gear 55 to rotate the rotary sub bevel gear 69 to rotate the rotary main pulley shaft 68 to rotate the rotary main pulley 70 to transmit power to the rotary sub pulley 66 through the elastic belt 67 to rotate the slip shaft 65 to rotate the meshing main bevel gear 79 to rotate the meshing sub bevel gear 76 to rotate the small sector shaft 63 to rotate the small sector shaft 64 to rotate the small sector shaft 57 to move the gripping palm 57 with the gripping block 36 to the right to cause the right sides of the two gripping clamps 60 to be caught in the two loosening grooves 18, thereby enabling the two grabbing clamps 60 to release the grabbing blocks 36, so that the grabbing blocks 36 move leftwards due to the resilience of the small telescopic rod 61, thereby enabling the protection box 35 to move leftwards, thereby enabling the protection rotating shaft 26 to drive the large electromagnet 25 to move leftwards, thereby enabling the large electromagnet 25 to be abutted against the strong magnet 24 to energize the large electromagnet 25 so as to attract the large electromagnet 25 to the strong magnet 24, thereby enabling the protection box 35 to be meshed with the rotating gear 43, reversely starting the power motor 52, thereby enabling the rotating shaft 50 to rotate, thereby enabling the rotating main bevel gear 19 to rotate, thereby enabling the rotating auxiliary bevel gear 20 to rotate, thereby enabling the large sector shaft 48 to rotate, thereby enabling the large sector gear 49 to be disengaged from the grabbing box 46, thereby enabling the grabbing box 46 to move leftwards due to the resilience of the compression spring 47, thereby enabling the screw driver bit 23 to be ejected out of the machine body, the source motor 33 is started forward, so that the left motor shaft 29 rotates, so that the linkage primary pulley 28 rotates, so that power is transmitted to the linkage secondary pulley 31 through the friction belt 30, so that the transmission shaft 38 rotates, so that the transmission primary pulley 39 rotates, so that power is transmitted to the transmission secondary pulley 42 through the transmission belt 41, so that the transmission shaft 44 rotates, so that the rotating gear 43 rotates, so that the protection box 35 rotates, so that the protection rotating wheel 73 rotates, so that the protection rotating shaft 26 rotates, so that the screwdriver bit 23 rotates, so that the screw is tightened, the rotation of the protection box 35 cannot rotate the protection rotating wheel 73 after the screw is tightened, and the device resets after the work is completed.

The invention has the beneficial effects that: the invention relates to a screwdriver with replaceable screwdriver bits, wherein a telescopic device is arranged in the screwdriver, the screwdriver bits of the screwdriver can be taken into the screwdriver, the screwdriver bits can be prevented from being injured or injured by people by mistake, a grabbing device can grab the screwdriver bits to finish the screwdriver bit replacement, the screwdriver bits of different screwdrivers can be selected by the replacing device, a rotating device can finish the screwing work of screws, and meanwhile, a protecting device can protect the screwdriver from being screwed continuously after the screws are screwed.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.