CN217530757U - Electric tool capable of being lengthened in telescopic mode - Google Patents

Abstract

An electric tool capable of extending and contracting is characterized by comprising a handle part, a rod part and a working part. The handle is for holding. The rod portion includes an outer rod and an inner rod. The inner rod is sleeved in the outer rod. The upper end of the outer rod is provided with an adjusting device, the lower end of the outer rod is arranged in the handle, the upper end of the inner rod is fixedly provided with a fixing head, and the length of the rod part can be adjusted according to actual conditions. A working part for performing electric work. The driving part is used for providing power and can control the operation of the working part through the switch of the mounting seat. Compare the conventional art, this application has stepless regulation function in the design of connecting rod portion, can also unload connecting rod portion and with battery package direct mount on the working portion, promoted the control range greatly. And this application has still carried out the modularized design to tool assembly, can accomplish specific operations such as pruning, grass mowing through changing different work module, has greatly promoted practicality and application scope.

Description

Scalable elongated electric tool

Technical Field

The utility model belongs to the electric tool field, concretely relates to scalable elongated electric tool.

Background

Electric tools, especially hand-held electric tools, such as sweeper, pruner, mower, lopper, etc., are common devices used in daily life and work. In the prior art, these conventional handheld electric tools generally include a handheld portion, a connecting rod portion, and a working portion, wherein the handheld portion is used for being held by a user, and the handheld portion may be provided with a detachable battery pack for supplying power, so that when the power is off, the battery pack may be detached from the electric tool for charging, or may be connected to a power source through a plug wire; the connecting rod part plays a connecting role; the working part is provided with an electric structure and a corresponding tool component for completing specific operations, such as blowing, pruning, sweeping, grass mowing, grass cutting and the like.

However, the length of the connecting rod part cannot be adjusted by a common electric tool, the common electric tool cannot adapt to a complex operating environment, and the saw blade, the blade and the like for work are designed into a whole with the equipment, so that the function is single.

SUMMERY OF THE UTILITY MODEL

To not enough among the above prior art, the utility model provides a scalable elongated electric tool has stepless regulation function in the design of connecting rod portion, can also unload connecting rod portion and wrap the direct mount with the battery on the working portion, has promoted the control range greatly. Just the utility model discloses still carry out the modularized design to tool assembly, can accomplish specific operations such as pruning, grass mowing through changing different work module, greatly promoted practicality and application scope.

In order to solve the above technical problem, the present invention solves the above technical problems.

An extendable and retractable power tool, comprising:

the handle part is provided with a locking mechanism and a switch assembly, and the operation of the working part can be controlled through the handle part.

The rod part comprises an outer rod and an inner rod. The inner rod is sleeved in the outer rod. The outer pole upper end is equipped with adjusting device, and outer pole lower extreme assembly is in the stalk portion, and interior pole upper end has set firmly the fixed head, can adjust pole portion length according to actual conditions.

The working part is used for implementing electric operation and internally provided with a mounting seat and a driving part. The mounting seat is used for connecting the fixing head, and a locking mechanism and a switch assembly are assembled in the mounting seat. The driving part is used for providing power and can control the operation of the working part through the switch of the mounting seat.

In a preferred embodiment, the adjusting device comprises an adjusting seat, an adjusting trigger is rotatably assembled on the adjusting seat, the adjusting trigger abuts against a friction block, the friction block abuts against the outer surface of the inner rod, and the function of stepless adjustment of the rod part can be achieved.

In a preferred embodiment, the inner wall of the upper end part of the outer rod is symmetrically provided with limiting blocks, the limiting blocks are provided with limiting protrusions, gaps are reserved on the back surfaces of the limiting blocks corresponding to the limiting protrusions, the lower end part of the inner rod is provided with limiting holes, the limiting protrusions and the limiting holes are matched to limit the displacement of the inner rod, and the inner rod is prevented from being separated from the outer rod.

In a preferred embodiment, the fixed head lower surface is provided with a fixed ring, the mounting base lower surface is provided with a fixed bulge, the fixed ring and the fixed bulge are matched with the fixation between the reinforced rod part and the working part, so that the working part is prevented from falling off due to shaking or pulling branches and the like when the tool is used for lifting.

In a preferred embodiment, a mounting plate and a working module are arranged in the driving portion, and a transmission mechanism and a driving motor are mounted on the mounting plate. The transmission mechanism comprises a first transmission shaft and a second transmission shaft, a duplicate gear is fixedly arranged on the first transmission shaft, a transmission gear is fixedly arranged on the second transmission shaft, and at least one transmission column is fixedly arranged on the transmission gear. An output gear is fixedly arranged at the end part of an output shaft of the driving motor, the output gear drives the duplicate gear to rotate so as to drive the transmission gear to rotate, and a transmission column on the transmission gear drives the working module to rotate, so that the modularization of the working part is favorable for expanding the applicability of the equipment.

In a preferred embodiment, the driving motor is driven by a battery pack or a power supply connected with a power grid, the battery pack can be assembled on the handle or the mounting seat, and the driving mode can be flexibly selected according to the working environment and the length of the rod.

In a preferred embodiment, the drive division still includes the visor, visor lateral wall internal surface is equipped with assembly arch and buckle, the drive division lower surface is equipped with slip catching groove and draw-in groove, visor and drive division can realize the slidingtype uninstallation through assembly arch and slip catching groove, can realize fixed set through buckle and draw-in groove, and not only beautifully but also can the protection equipment, can also prevent to scald one's hand because of mistake touches the work module after using.

In a preferred embodiment, a rotating head is arranged on the mounting seat, and a telescopic positioning seat is arranged on one side of the rotating head. The driving portion is provided with an installation opening matched with the installation seat, and one side of the installation opening is provided with a positioning hole matched with the positioning seat. The side wall of the positioning seat is provided with a positioning column, the inner wall of the positioning hole is provided with a positioning groove matched with the positioning column, the positioning column on the positioning seat can be separated from the positioning groove after the positioning seat retracts, the positioning seat is connected with an elastic reset piece in the mounting seat, and the rotating structural design is favorable for adjusting the angle of the driving part according to the actual operation environment.

In a preferred embodiment, the lower end of the mounting seat is provided with a dual-purpose position, the dual-purpose position is used for connecting a fixed head or a power supply, and when the working distance is short, direct handheld mounting seat operation can be selected.

In a preferred embodiment, the switch assembly comprises a switch element, a torsion spring and a switch trigger, wherein the switch element realizes a switch function by pressing the switch trigger, the switch trigger realizes resetting by the torsion spring, and the tool is switched on and off by pressing the switch trigger. The locking mechanism comprises a locking column which can slide left and right, a locking protrusion is arranged on the switch trigger, the locking block is located above the locking protrusion in a locking state, the switch trigger can be locked, and the switch trigger is prevented from being touched by mistake.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model provides a scalable elongated electric tool, the design has stepless regulation function at connecting rod portion, can also unload connecting rod portion and with battery package direct mount on the working portion, has promoted the control range greatly. Just the utility model discloses still carry out the modularized design to tool assembly, can accomplish specific operations such as pruning, grass mowing through changing different work module, greatly promoted practicality and application scope.

Drawings

Fig. 1 is a perspective view of the present application.

Fig. 2 is a partially enlarged view of a point a in fig. 1.

Fig. 3 is a partially enlarged view of B in fig. 1.

Fig. 4 is a partially enlarged view of C in fig. 1.

Fig. 5 is a perspective view of the battery pack.

Fig. 6 is a plan view of a handle structure.

Fig. 7 is a perspective view of the position structure of the adjusting device.

Fig. 8 is a burst view of the inner rod and the limiting block in cooperation.

Fig. 9 is a perspective view of the position of the fixation head.

Fig. 10 is a perspective view of the internal structure of the mounting base.

Fig. 11 is a perspective view of the driving unit housing.

Fig. 12 is an exploded view of the transmission.

Fig. 13 is a perspective view of the internal structure of the working portion.

Fig. 14 is an exploded view of the saw blade assembly.

Fig. 15 is a perspective view of the saw blade assembly and the drive portion in cooperation.

Fig. 16 is a perspective view of the protective cover.

The labels in the figure are:

1-a battery pack; 11-buckling;

2-a handle; 21-a battery mounting location; 211-card slot; 22-a locking mechanism; 221-locking post; 222-a locking block; 23-a switch assembly; 231-a switching element; 232-torsion spring; 233-switch trigger; 2331-a locking tab;

3-a rod part; 31-an outer rod; 32-inner rod; 321-a limiting pore; 33-a regulating device; 331-an adjusting seat; 332-adjusting the trigger; 333-friction block; 34-a fixed head; 341-contact energizing head; 342-a fixed ring; 35-a restriction block; 351-a limiting projection;

4-a working part;

5-mounting a base; 51-a rotating head; 511-positioning seats; 5111-a locator post; 52-a resilient return member; 53-dual use bit; 531-contact energizing element; 54-fixing the projection;

6-a drive section; 61-a housing; 611-sliding fastening grooves; 62-a mounting port; 621-positioning holes; 6211-positioning grooves; 63-a drive motor; 631-output gear; 64-a transmission mechanism; 641-a first transmission shaft; 6411-duplicate gear; 642-a second drive shaft; 6421-drive gears; 6422-a drive column; 65-assembly plate; 66-a work module; 661-eccentric turntable; 6611-drive hole; 662-pruning blades; 6621-oval hole; 6622-guide hole; 663-first positioning bar; 6631-guide bolt; 664-a second positioning bar; 67-a protective cover; 671-mounting bumps.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not construed as limiting the present invention, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be understood that the terms: the center, vertically, transversely, length, width, thickness, upper and lower, preceding, back, left and right, vertical, level, top, end, inside and outside, clockwise, anticlockwise etc. indicate position or positional relationship for based on the position or positional relationship that the drawing shows, just for the convenience of description the utility model discloses and simplified description, consequently can not be understood as the restriction of the utility model. Furthermore, the terms: first, second, etc. 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 shown. In the description of the present invention, unless explicitly stated or limited otherwise, the terms: mounting, connecting, etc. should be understood broadly, and those skilled in the art will understand the specific meaning of the terms in this application as they pertain to the particular situation.

Refer to fig. 1 to 16.

A telescopically extendable power tool comprising:

the battery pack comprises a battery pack 1, wherein a buckle 11 is arranged on the side surface of the battery pack 1.

The rear end of the handle part 2 is provided with a battery mounting position 21, a clamping groove 211 is arranged in the battery mounting position 21, and the battery mounting position 21 and the battery pack 1 can be assembled in a matched mode through a buckle 11 and the clamping groove 211; the handle 2 is also internally fitted with a locking mechanism 22 and a switch assembly 23.

A rod part 3, the rod part 3 comprising an outer rod 31 and an inner rod 32; the inner rod 32 is sleeved in the outer rod 31; the upper end part of the outer rod 31 is provided with an adjusting device 33, and the lower end part of the outer rod 31 is arranged in the handle 2; the upper end of the inner rod 32 is fixedly provided with a fixed head 34, the top of the fixed head 34 is provided with a contact electrifying head 341, and the side surface of the fixed head 34 is provided with a buckle 11.

A working part 4, wherein the working part 4 comprises a mounting seat 5 and a driving part 6. A rotating head 51 is arranged on the mounting base 5, and a telescopic positioning base 511 is arranged on one side of the rotating head 51; the driving part 6 is provided with an installation opening 62 matched with the installation seat 5, and one side of the installation opening 62 is provided with a positioning hole 621 matched with the positioning seat 511; a positioning column 5111 is disposed on a side wall of the positioning seat 511, a positioning groove 6211 matched with the positioning column 5111 is disposed on an inner wall of the positioning hole 621, the positioning column 5111 on the positioning seat 511 can be separated from the positioning groove 6211 after the positioning seat 511 retracts, and the positioning seat 511 is connected to the elastic reset piece 52 in the mounting seat 5. The rotating structure is beneficial to adjusting the angle of the driving part 6 according to the actual operation environment. The lower end part of the mounting seat 5 is provided with a dual-purpose position 53, a clamping groove 211 is arranged in the dual-purpose position 53, and the dual-purpose position 53 can be matched and assembled with the fixing head 34 of the inner rod 32 or the battery pack 1 through a buckle 11 and the clamping groove 211; a contact electrifying element 531 is also arranged in the dual-purpose position 53 and can be electrified after being contacted with a contact electrifying head 341 of the fixed head 34; the lower end of the mounting base 5 is also equipped with a locking mechanism 22 and a switch assembly 23.

The driving part 6 comprises a shell 61, a driving motor 63 and a transmission mechanism 64 are arranged in the shell 61, a working module 66 is assembled on the driving part 6, the driving motor 63 drives the transmission mechanism 64 to rotate, and the transmission mechanism 64 drives the working module 66 to move. Specifically, the transmission mechanism 64 includes a first transmission shaft 641 and a second transmission shaft 642, a mounting plate 65 is disposed in the housing 61, the driving motor 63 is fixed on the mounting plate 65, and the first transmission shaft 641 and the second transmission shaft 642 are rotatably mounted on the mounting plate 65. An output gear 631 is fixedly arranged at the end of an output shaft of the driving motor 63, a duplicate gear 6411 is fixedly arranged on the first transmission shaft 641, a transmission gear 6421 is fixedly arranged on the second transmission shaft 642, at least one transmission column 6422 is fixedly arranged on the transmission gear 6421, the output gear 631 drives the duplicate gear 6411 to rotate so as to drive the transmission gear 6421 to rotate, and the transmission column 6422 on the transmission gear 6421 drives the working module 66 to rotate. The driving part 6 and the working module 66 are separately designed, so that the working module 66 is convenient to replace according to the actual operation environment, and the application range is greatly enlarged. The driving part 6 further comprises a protective cover 67, the inner surface of the side wall of the protective cover 67 is provided with an assembling protrusion 671, the lower surface of the shell 61 is provided with a sliding buckle groove 611, and the protective cover 67 and the shell 61 can be unloaded in a sliding manner through the assembling protrusion 671 and the sliding buckle groove 611; one end of the protective cover 67 is provided with a buckle 11, the lower surface of the shell 61 is provided with a clamping groove 211, and the protective cover 67 and the shell 61 can be fixedly assembled through the buckle 11 and the clamping groove 211. Not only beautiful but also can protect the equipment, and can prevent hands from being scalded due to the mistaken touch of the working module 66 after use.

The switch assembly 23 in the handle 2 is connected to a wire which passes through the shaft 3 and is connected to a contact energizing head 341 on the fixed head 34.

Specifically, in the present application, the adjusting device 33 includes an adjusting seat 331, an adjusting trigger 332 is rotatably assembled on the adjusting seat 331, the adjusting trigger 332 supports against a friction block 333, the friction block 333 supports against the outer surface of the inner rod 32, and the stepless adjusting function of the rod 3 can be realized.

Specifically, in this application, outer pole 31 upper end inner wall symmetry is equipped with restriction piece 35, be equipped with restriction arch 351 on the restriction piece 35, leave the space with the restriction piece 35 back that restriction arch 351 corresponds, the lower tip of interior pole 32 is equipped with restriction hole 321, and restriction arch 351 and the cooperation of restriction hole 321 can realize the displacement restriction to interior pole 32, prevent that interior pole 32 breaks away from outer pole 31 in accommodation process. Fixed head 34 lower surface is equipped with solid fixed ring 342, mount pad 5 lower surface is equipped with fixed protrusion 54, gu fixed ring 342 and fixed protrusion 54 cooperation stiffener portion 3 and the fixed between the work portion 4 prevent that the work portion 4 from because of rocking or holding the branch etc. reason and dropping when the instrument is lifted the use.

Specifically, in the present application, the switch assembly 23 includes a switch element 231, a torsion spring 232, and a switch trigger 233, the switch element 231 is pressed by the switch trigger 233 to realize a switch function, the switch trigger 233 is reset by the torsion spring 232, and the tool is switched on and off by pressing the switch trigger 233. The locking mechanism 22 includes a locking column 221, the locking column 221 can slide left and right, a locking protrusion 2331 is provided on the switch trigger 233, and the locking block 222 is located above the locking protrusion 2331 in a locking state, and can lock the switch trigger 233 to prevent erroneous touch of the switch trigger 233.

In this embodiment, the working module 66 is a saw blade assembly. The saw blade assembly comprises two eccentric turntables 661 with opposite assembly angles, two corresponding pruning blades 662, a first positioning bar 663 and a second positioning bar 664. An end of each of the pruning blades 662 is provided with a fitting elliptical hole 6621, and the fitting elliptical hole 6621 of each of the pruning blades 662 is fitted with one eccentric turntable 661. A guide bolt 6631 is arranged between the first positioning strip 663 and the second positioning strip; a strip-shaped guide hole 6622 is formed in the pruning blade 662, and the guide hole 6622 is sleeved on the guide bolt 6631. The eccentric turntable 661 is provided with a transmission hole 6611, and the transmission column 6422 of the transmission gear 6421 is matched with the transmission hole 6611 of the eccentric turntable 661 to realize that the transmission gear 6421 drives the eccentric turntable 661 to rotate. The eccentric turntables 661 are assembled on the transmission gear 6421, the saw blade assembly is fixed on the driving part 6 through the second positioning bar 664 by using bolts, when the saw blade assembly works, the transmission post 6422 on the transmission gear 6421 drives the two eccentric turntables 661 to rotate, and the eccentric turntables 661 drives the pruning blades 662 to reciprocate.

Electric tool in this application, drive portion 6 and with mount pad 5 between be the rotation connection relation of angularly adjustable, can select suitable angle to adjust according to actual need when using. Specifically, during angle adjustment, the positioning seat 511 is pressed by a hand to retract, so that the positioning column 5111 on the positioning seat 511 is disengaged from the positioning groove 6211, at this time, the whole driving portion 6 can rotate around the positioning seat 511, when the positioning seat is rotated to a required angle, the hand is released, the positioning seat 511 stretches out again under the action of the elastic reset piece 52, so that the positioning column 5111 is inserted into the corresponding positioning groove 6211, and the fixing of the rotation angle is completed, which is very convenient.

When the adjustable length rod is used, the length of the rod part 3 can be adjusted according to actual needs, the adjusting trigger 332 is pulled upwards during adjustment, the friction block 333 is separated from the inner rod 32, the inner rod 32 can slide freely, the adjusting trigger 332 is pulled downwards to reset when adjustment is finished, the friction block 333 is abutted against the surface of the inner rod 32, the inner rod 32 cannot slide, and adjustment is completed. In the adjusting process, if the force for pulling the inner rod 32 is too large, when the limiting hole 321 of the inner rod 32 reaches the limiting block 35, the limiting protrusion 351 is pushed into the limiting hole 321, the movement of the inner rod 32 is limited, and the design can prevent the inner rod 32 from being pulled out of the outer rod 31. When the length needs to be adjusted after reaching the limiting position, the inner rod 32 only needs to be moved towards the outer rod 31 by a slightly large force, the limiting protrusion 351 can be moved backwards due to the gap on the back of the limiting block 35, and the length of the rod part 3 can be freely adjusted after the limiting protrusion 351 and the limiting hole 321 are separated.

The present application also has a switch locking function, when the device is in the off state, the locking column 221 is placed in the middle, and the locking block 222 is located above the locking protrusion 2331, and the switch trigger 233 cannot contact the switch element 231, which can prevent the device from being started by mistakenly touching the switch trigger 233. When it is desired to open the device, the locking pin 221 is manually pressed to displace it a distance to either the left or right, so that the locking block 222 is biased above the locking protrusion 2331, and the switch trigger 233 is free to move.

Compare the conventional art, this application has stepless regulation function in the design of connecting rod portion, can also unload connecting rod portion and with battery package direct mount on the working portion, promoted the control range greatly. And this application has still carried out modular design to the instrument subassembly, can accomplish specific operations such as pruning, grass mowing through changing different work module, has greatly promoted practicality and application scope.

The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that can be easily conceived by those skilled in the art made by the present technology all fall into the protection scope of the present invention.

Claims (9)

1. An extendable and retractable power tool, comprising:

a handle (2), a locking mechanism (22) and a switch component (23) are assembled in the handle (2);

a rod part (3), the rod part (3) comprising an outer rod (31) and an inner rod (32); the inner rod (32) is sleeved in the outer rod (31); the upper end part of the outer rod (31) is assembled with an adjusting device (33), the lower end part of the outer rod (31) is assembled in the handle part (2), and the upper end part of the inner rod (32) is fixedly provided with a fixed head (34);

a working part (4) for performing electric operation, wherein a mounting seat (5) and a driving part (6) are arranged in the working part; the mounting seat (5) is used for connecting a fixed head (34), and a locking mechanism (22) and a switch assembly (23) are assembled in the mounting seat; the driving part is used for providing power.

2. The retractable electric tool according to claim 1, wherein the adjusting device (33) comprises an adjusting seat (331), an adjusting trigger (332) is rotatably assembled on the adjusting seat (331), the adjusting trigger (332) abuts against a friction block (333), and the friction block (333) abuts against the outer surface of the inner rod (32).

3. The retractable and extendable electric tool as claimed in claim 2, wherein the inner wall of the upper end of the outer rod (31) is symmetrically provided with limiting blocks (35), the limiting blocks (35) are provided with limiting protrusions (351), a gap is left on the back of the limiting block (35) corresponding to the limiting protrusions (351), the lower end of the inner rod (32) is provided with limiting holes (321), and the limiting protrusions (351) and the limiting holes (321) are matched to limit the displacement of the inner rod (32).

4. A telescopically extendable electric tool according to claim 3, wherein the lower surface of the fixing head (34) is provided with a fixing ring (342), the lower surface of the mounting seat (5) is provided with a fixing protrusion (54), and the fixing ring (342) and the fixing protrusion (54) cooperate to reinforce the fixation between the rod portion (3) and the working portion (4).

5. The retractable and extendable power tool as claimed in claim 1, wherein a mounting plate (65) and an operating module (66) are provided in said driving portion (6), and a transmission mechanism (64) and a driving motor (63) are mounted on said mounting plate (65); the transmission mechanism (64) comprises a first transmission shaft (641) and a second transmission shaft (642), a duplicate gear (6411) is fixedly arranged on the first transmission shaft (641), a transmission gear (6421) is fixedly arranged on the second transmission shaft (642), and at least one transmission column (6422) is fixedly arranged on the transmission gear (6421); an output gear (631) is fixedly arranged at the end part of an output shaft of the driving motor (63), the output gear (631) drives a duplicate gear (6411) to rotate so as to drive a transmission gear (6421) to rotate, and a transmission column (6422) on the transmission gear (6421) drives a working module (66) to rotate.

6. A retractable extension power tool according to claim 5, wherein the drive motor (63) is powered by a battery pack (1) or mains electricity, the battery pack (1) being mounted on the handle (2) or the mounting (5).

7. The retractable and extendable electric tool as claimed in claim 6, wherein said driving part (6) further comprises a protection cover (67), said protection cover (67) has a fitting protrusion (671) and a catch (11) on the inner surface of the side wall, said driving part (6) has a sliding catch groove (611) and a catch groove (211) on the lower surface, said protection cover (67) and said driving part (6) can be slidably unloaded via said fitting protrusion (671) and said sliding catch groove (611), and said catch (11) and said catch groove (211) can be fixedly fitted.

8. The retractable and extendable power tool as claimed in claim 1, wherein said mounting base (5) is provided with a rotating head (51), and one side of said rotating head (51) is provided with a retractable positioning base (511); the driving part (6) is provided with a mounting opening (62) matched with the mounting seat (5), and one side of the mounting opening (62) is provided with a positioning hole (621) matched with the positioning seat (511); the side wall of the positioning seat (511) is provided with a positioning column (5111), the inner wall of the positioning hole (621) is provided with a positioning groove (6211) matched with the positioning column (5111), the positioning column (5111) on the positioning seat (511) can be separated from the positioning groove (6211) after the positioning seat (511) retracts, and the positioning seat (511) is connected with an elastic resetting piece (52) in the mounting seat (5).

9. The extendable and extendable electric power tool as claimed in claim 8, wherein said mounting base (5) has a lower end portion provided with a dual-purpose position (53), said dual-purpose position (53) being used for connecting a fixing head (34) or a power source.

Images