Multipurpose shovel driven by electric drill

Abstract

The utility model discloses an electric drill driven multi-purpose shovel which comprises an electric drill and further comprises a shell, and a connecting hole is formed in the shell; the gear speed change transmission assembly is arranged in the shell and comprises a hexagonal handle connecting rod and an intermediate shaft which rotate in the shell, gear sets are arranged on the hexagonal handle connecting rod and the intermediate shaft, and the gear sets are used for transmitting rotation of the hexagonal handle connecting rod to the intermediate shaft and increasing the output rotating speed of the intermediate shaft; a hexagonal handle fixed to the hexagonal handle connecting rod is arranged in the connecting hole and used for being clamped by an electric drill chuck, and therefore connection with an electric drill is achieved. The eccentric shaft is arranged in the shell, a spherical bearing is fixed to the eccentric shaft, and the middle shaft transmits power to the eccentric shaft to drive the eccentric shaft to rotate; the output shaft is rotationally arranged in the shell, a saw blade and a shifting fork are arranged at the tail end of the output shaft, and two contact arms are formed on the shifting fork.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of multi-purpose shovels, in particular to a multi-purpose shovel driven by an electric drill. BACKGROUND

[0002] The multi-purpose shovel is also called a swing shovel, which can realize grinding, sawing and shoveling functions.

[0003] The existing multi-purpose shovel, such as the electric multi-purpose shovel with comfortable hand feeling disclosed in Chinese Patent No. CN208196690U, generally adopts an integrated built-in motor drive, which has high cost, large machine body, large volume when carrying and poor universality.

[0004] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as the closest prior art to the present application. SUMMARY

[0005] Therefore, the present application provides a multi-purpose shovel driven by an electric drill to solve one of the above technical problems.

[0006] The technical solution adopted by the present application to solve the technical problem is: a multi-purpose shovel driven by an electric drill, comprising: an electric drill, further comprising: a shell, a connecting hole is formed on the shell; a gear variable speed transmission assembly is arranged inside the shell, comprising a hexagonal handle connecting rod rotating in the shell and an intermediate shaft, a gear set is arranged on the hexagonal handle connecting rod and the intermediate shaft, the gear set is used to transmit the rotation of the hexagonal handle connecting rod to the intermediate shaft and improve the output rotation speed of the intermediate shaft, a hexagonal handle fixed with the hexagonal handle connecting rod is arranged in the connecting hole, the hexagonal handle is used for clamping the electric drill chuck to realize the connection with the electric drill; an eccentric shaft is arranged in the shell, a spherical bearing is fixed on the eccentric shaft, the intermediate shaft drives the eccentric shaft to rotate by power transmission; an output shaft is rotating in the shell, a saw blade and a fork are arranged at the end of the output shaft, two contact arms are formed on the fork, the contact arms are arranged on both sides of the spherical bearing, and the eccentric shaft rotation can drive the fork to act as a pendulum, so as to make the saw blade vibrate.

[0007] In some embodiments, the gear set comprises a first large straight tooth, a second large straight tooth, a first small straight tooth and a second small straight tooth, the first large straight tooth is fixed on the hexagonal handle connecting rod, the second large straight tooth and the first small straight tooth are fixed on the intermediate shaft, and the second small straight tooth is fixed at the end of the eccentric shaft.

[0008] In some embodiments, the first large straight tooth is engaged with the first small straight tooth, the second large straight tooth is engaged with the second small straight tooth, the electric drill drives the hex-shank connecting rod to rotate, and power is transmitted from the hex-shank connecting rod, the intermediate shaft to the eccentric shaft after being speeded up by the gear set.

[0009] In some embodiments, copper sleeves are arranged on the intermediate shaft and the eccentric shaft for reducing friction and positioning, and planar bearings are arranged on the hex-shank connecting rod, the intermediate shaft and the eccentric shaft.

[0010] In some embodiments, a plug-in post is formed at the end of the hex-shank connecting rod, a plug-in slot matching the plug-in post is formed at the end of the hex-shank, the plug-in slot is a D-shaped slot, and the hex-shank connecting rod and the hex-shank can rotate synchronously after being plugged and fixed.

[0011] In some embodiments, a contact block with a bent leg is formed at the end of the contact arm, the contact block is in contact with the spherical bearing, and a reinforcing rod connecting the two contact arms is arranged between the two contact arms.

[0012] In some embodiments, an installation trigger for installing and compressing the output shaft is arranged at the end of the output shaft, and a lock catch for locking the installation trigger is arranged on the shell.

[0013] In some embodiments, the output shaft extends out of the shell, and the saw blade is fixed at the end of the extended part of the output shaft by a locking nut.

[0014] The application has the advantages that the hex-shank connecting electric drill or screwdriver is used to drive the multi-purpose shovel, the volume of carrying and transporting is reduced, the versatility of the multi-purpose shovel is improved and the cost is reduced when different electric tools need to be carried. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0016] Figure 1 is a perspective view of the application.

[0017] Figure 2 is a schematic view of the internal structure of the shell of the application.

[0018] Figure 3 is an exploded view of the hex-shank and the hex-shank connecting rod of the application.

[0019] Figure 4 Figure 1 is a schematic diagram of the shifting fork and spherical bearing structure of the present application.

[0020] BRIEF DESCRIPTION OF DRAWINGS 1, housing, 2, connecting hole, 3, hexagonal handle connecting rod, 4, intermediate shaft, 5, gear set, 501, first large straight tooth, 502, second large straight tooth, 503, first small straight tooth, 504, second small straight tooth, 6, hexagonal handle, 7, eccentric shaft, 8, spherical bearing, 9, output shaft, 10, saw blade, 11, shifting fork, 1101, contact arm, 1102, contact block, 1103, reinforcing rod, 12, copper sleeve, 13, flat bearing, 14, insertion column, 15, insertion slot, 16, installation trigger, 17, lock catch, 18, locking nut. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope of the present application.

[0022] In the embodiments of the present application, please refer to Figures 1-4 Figure 1, the multi-purpose shovel driven by the electric drill mainly comprises: an electric drill, further comprising: a housing 1, a connecting hole 2 is formed on the housing 1; a gear variable speed transmission assembly is arranged inside the housing 1 and comprises a hexagonal handle connecting rod 3 and an intermediate shaft 4 rotating in the housing 1, a gear set 5 is arranged on the hexagonal handle connecting rod 3 and the intermediate shaft 4, the gear set 5 is used to transmit the rotation of the hexagonal handle connecting rod 3 to the intermediate shaft 4 and improve the output rotation speed of the intermediate shaft 4, a hexagonal handle 6 fixed with the hexagonal handle connecting rod 3 is arranged in the connecting hole 2, the hexagonal handle 6 is used for clamping the chuck of the electric drill, thereby realizing the connection with the electric drill; an eccentric shaft 7 is arranged in the housing 1, a spherical bearing 8 is fixed on the eccentric shaft 7, the intermediate shaft 4 transmits power to the eccentric shaft 7 to drive the eccentric shaft 7 to rotate; an output shaft 9 rotates in the housing 1, a saw blade 10 and a shifting fork 11 are arranged at the end of the output shaft 9, two contact arms 1101 are formed on the shifting fork 11, the contact arms 1101 are arranged on both sides of the spherical bearing 8, the eccentric shaft 7 can drive the shifting fork 11 to actuate the eccentric swing, thereby making the saw blade 10 vibrate to work, in addition, in the absence of the electric drill, the multi-purpose shovel can also be driven by the electric screwdriver to work.

[0023] The following will continue to elaborate based on the above embodiments for some preferred / improved embodiments, the following embodiments can be selected, or combined with multiple.

[0024] As Figure 2 shown, the gear set 5 includes a first large straight tooth 501, a second large straight tooth 502, a first small straight tooth 503 and a second small straight tooth 504, the first large straight tooth 501 is fixed on the hexagonal handle connecting rod 3, the second large straight tooth 502 and the first small straight tooth 503 are fixed on the intermediate shaft 4, the second small straight tooth 504 is fixed on the end of the eccentric shaft 7, through the action of the gear set 5, the power is transmitted through the hexagonal handle connecting rod 3 and the intermediate shaft 4, the rotating speed is increased, and finally transmitted to the eccentric shaft 7.

[0025] Further, the first large straight tooth 501 and the first small straight tooth 503 are engaged with each other, the second large straight tooth 502 and the second small straight tooth 504 are engaged with each other, the electric drill drives the hexagonal handle connecting rod 3 to rotate, and the power is transmitted from the hexagonal handle connecting rod 3 and the intermediate shaft 4 to the eccentric shaft 7 after the speed-up of the gear set 5, the hexagonal handle connecting rod 3 and the intermediate shaft 4 transmit power and increase the rotating speed through the engagement of the first large straight tooth 501 and the first small straight tooth 503, so that the rotating speed of the intermediate shaft 4 is higher than that of the hexagonal handle connecting rod 3, the intermediate shaft 4 transmits power to the eccentric shaft 7 through the cooperation of the second large straight tooth 502 and the second small straight tooth 504, and further increases the rotating speed.

[0026] Specifically, the intermediate shaft 4 and the eccentric shaft 7 are provided with copper bushings 12 for reducing friction and positioning, the hexagonal handle connecting rod 3, the intermediate shaft 4 and the eccentric shaft 7 are provided with plane bearings 13, the plane bearings 13 or the copper bushings 12 help to reduce the friction when the hexagonal handle connecting rod 3, the intermediate shaft 4 and the eccentric shaft 7 rotate, and also play a supporting and positioning function

[0027] As Figure 3 shown, the hexagonal handle connecting rod 3 forms a plug-in column 14 at the end, the hexagonal handle 6 is provided with a plug-in groove 15 matched with the plug-in column 14 at the end, the plug-in groove 15 is a D-shaped groove, and the hexagonal handle connecting rod 3 and the hexagonal handle 6 can rotate synchronously after plug-in fixing.

[0028] As Figure 4 shown, the contact arm 1101 forms a contact block 1102 with a foot bend at the end, the contact block 1102 is in contact with the spherical bearing 8, and the two contact arms 1101 are provided with a reinforcing rod 1103 connecting the two contact arms 1101, the eccentric shaft 7 will drive the spherical bearing 8 on it to eccentrically rotate synchronously when rotating at high speed, the spherical bearing 8 will drive the shift fork 11 to swing in a small amplitude when rotating, and then the output shaft 9 will continuously reciprocate, and finally drive the saw blade 10 to swing.

[0029] As Figure 1 shown, the output shaft 9 end is provided with a mounting trigger 16 for mounting and pressing the output shaft 9, and the housing 1 is provided with a lock 17 for locking the mounting trigger 16.

[0030] Further, the output shaft 9 extends out of the housing 1, and the saw blade 10 is fixed at the end of the output shaft 9 extending out portion by a lock nut 18.

[0031] Specifically, in use, first clamp the chuck of the electric drill to the hexagonal handle 6, then start the electric drill to drive the rotation of the hexagonal handle 6, and through the plug-in cooperation of the hexagonal handle 6 and the hexagonal handle connecting rod 3, drive the rotation of the first large straight tooth 501, thereby driving the rotation of the first small straight tooth 503 matched with the first large straight tooth 501, the rotation of the first small straight tooth 503 drives the rotation of the intermediate shaft 4, thereby driving the rotation of the second large straight tooth 502, and the rotation of the second large straight tooth 502 drives the rotation of the second small straight tooth 504 on the eccentric shaft 7 matched with it; the rotation of the eccentric shaft 7 drives the left and right swing of the shift fork 11, thereby making the saw blade 10 on the output shaft 9 work, so as to achieve the function of the traditional multi-purpose shovel.

[0032] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0033] Finally, it should be pointed out that the above is only the preferred embodiment of the present application, and the foregoing embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not drive the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-purpose spade driven by an electric drill, comprising an electric drill, characterized in that, Also include: The shell is formed with a connecting hole; Gear transmission assembly, set in the shell, including rotating in the shell hexagonal handle connecting rod and intermediate shaft, the hexagonal handle connecting rod and intermediate shaft are provided with gear set, the gear set is used for transmitting the rotation of the hexagonal handle connecting rod to the intermediate shaft, and the rotation speed of the output of the intermediate shaft is improved, the connecting hole is provided with the hexagonal handle fixed with the hexagonal handle connecting rod, the hexagonal handle is used for clamping the chuck of electric drill, so as to realize the connection with electric drill; Eccentric shaft, set in the shell, fixed with spherical bearing, the intermediate shaft drives the eccentric shaft to rotate; Output shaft, rotating in the shell, the end is provided with saw blade and fork, the fork is formed with two contact arms, the contact arms are arranged on both sides of the spherical bearing, the eccentric shaft rotates and can drive the fork to act eccentrically, so that the saw blade vibrates.

2. A multi-purpose spud driven by an electric drill according to claim 1, characterized in that, The gear set includes first large straight tooth, second large straight tooth, first small straight tooth and second small straight tooth, the first large straight tooth is fixed on the hexagonal handle connecting rod, the second large straight tooth and the first small straight tooth are fixed on the intermediate shaft, and the second small straight tooth is fixed on the end of the eccentric shaft.

3. A multi-chip for an electric drill driver according to claim 2, wherein The first large straight tooth and the first small straight tooth are engaged with each other, the second large straight tooth and the second small straight tooth are engaged with each other, the electric drill drives the hexagonal handle connecting rod to rotate, and the power is transmitted from the hexagonal handle connecting rod, the intermediate shaft to the eccentric shaft after the speed up of the gear set.

4. The multi-chip shovel driven by an electric drill according to claim 1, wherein The intermediate shaft and eccentric shaft are provided with copper bushing for reducing friction and positioning effect, and the hexagonal handle connecting rod, the intermediate shaft and the eccentric shaft are provided with plane bearing.

5. The multi-chip shovel driven by an electric drill according to claim 1, wherein The hexagonal handle connecting rod is formed with a plug-in column at the end, the hexagonal handle is provided with a plug-in groove matched with the plug-in column at the end, the plug-in groove is a D-shaped groove, and the hexagonal handle connecting rod and the hexagonal handle can rotate synchronously after plug-in fixed.

6. A multi-chip shovel driven by an electric drill according to claim 1, wherein The contact arm is formed with a contact block with a foot bend at the end, the contact block is in contact with the spherical bearing, and a reinforcing rod connecting the two contact arms is arranged between the two contact arms.

7. A multi-chip for an electric drill driver according to claim 1, wherein The output shaft is provided with a mounting trigger for mounting and pressing the output shaft, and the shell is provided with a lock catch for locking the mounting trigger.

8. The multi-chip shovel driven by an electric drill according to claim 1, wherein The output shaft extends out of the shell, and the saw blade is fixed at the end of the output shaft extending out portion by a locking nut.

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