CN205018443U

CN205018443U - Electric telescopic stick

Info

Publication number: CN205018443U
Application number: CN201520635845.8U
Authority: CN
Inventors: 江榆崧
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-08-21
Filing date: 2015-08-21
Publication date: 2016-02-10
Anticipated expiration: 2025-08-21

Abstract

The utility model provides an electric telescopic stick, includes: a grab handle, an outer cane and an interior cane, a battery and an actuating mechanism have been installed to the inside of grab handle, actuating mechanism contains a motor at least, a worm, a helical gear and a screw rod, outer cane and interior cane all are a tube element, the internal diameter surface of outer cane has a guide channel, one end fixed connection in the grab handle of outer cane, interior cane sets up among outer cane and can slide along the axial direction of outer cane with coaxial relation, the inside on the top of interior cane has set firmly a nut, the nut has a guiding block, the guiding block can slide along the extending direction of the guide channel of outer cane, the one end and the oblique gear couplings of screw rod, the screw rod rotationally stretch into in the cane and with the nut spiral shell together, it rotates to pass through worm and helical gear drive screw rod during the revolution, utilize the interior cane of screw rod drive to carry out concertina movement along the axial direction of outer cane, realize extending or shortening the function of the length of walking stick.

Description

Electric telescopic stick

Technical field

The utility model relates to a kind of crutch, particularly a kind of electric telescopic stick that can extend or shorten.

Background technology

Traditional crutch consists essentially of leader and a cane body, handle and cane body are linked together by fastened to each other, and the length of cane body is fixed and momentarily cannot extend depending on the needs of user or shorten, the real difficulty of traditional crutch that this length is fixed meets the needs of the user of different stature; On the other hand, comparatively inconvenience is being put or carrying also to traditional crutch that length is fixed, because cannot at random change length or shortening.

Published TaiWan, China patent of invention (open numbering: TW201110906A1) " electric expansion cane ", it is disclosed that a kind of for stair activity and stand from ladder etc. or sit down time, can carry out flexible with the walking stick of its action auxiliary fast.Wherein motor drives many screw thread feed screws to rotate by a crown gear, many its upper end of screw thread feed screw is rotatably supported in the hollow bulb in fixing cane portion, simultaneously bottom be then engaged on top, movable cane portion the nut component fixed, and then utilize many screw thread feed screws to drive movable cane to move the Telescopic realizing walking stick; The another inner circumferential in fixing cane portion is formed and extends outstanding ridge towards axis direction, and the outer peripheral face in movable cane portion forms the recessed bar that can fasten with ridge, fastens both making, and can to movable cane portion can towards axis direction mobile status in addition spline.

In aforesaid known technology, motor drives many screw thread feed screws to rotate by a crown gear, although the rotating shaft direction that this reducing gear can change motor is transformed to fixing cane portion from handle portion, the torsion that can produce is by the reducing gear not as good as use worm gear; The ridge by engaging mutually and recessed bar on the other hand between fixing cane and movable cane, to enable movable cane spline when many screw thread feed screws rotate, and slide towards above-below direction in the hollow bulb of fixing cane, but the described ridge that can engage mutually and recessed bar are owing to having suitable length, this can make movable cane produce larger frictional resistance when sliding and between fixing cane, and then increases the load of motor.

About the detailed content of other effect of the present utility model and embodiment, coordinate graphic being described as follows.

Utility model content

One of the purpose of this utility model, at a kind of electric telescopic stick that can extend or shorten of proposition, is available for users to optionally and momentarily extend or shorten.

For achieving the above object, one embodiment of the utility model electric telescopic stick, comprise: a lever, cane in one outer cane and, the inside of lever is equiped with battery and a driving mechanism, one end of outer cane is fixedly connected on lever, outer cane and interior cane are all a kind of tube element, interior cane is arranged among outer cane with coaxial relation and also can slides along the axial direction of outer cane, driving mechanism at least comprises a motor, one worm screw, one helical gear and a screw rod, the inside diameter surface of outer cane has the guide channel extended along parallel axis direction, the inside on the top of interior cane is installed with a nut, nut has towards the outstanding guiding block of radial outside, guiding block projects to the outside of interior cane and can slide along the bearing of trend of the guide channel of outer cane, one end of screw rod and helical gear connect, screw rod with coaxial relation stretch into rotationally interior cane axis and together with being screwed on nut, interlock worm screw and helical gear can rotate to produce and slow down and increase the effect of torsion during revolution, bolt rotary is driven further again by helical gear, cane in screw drive is utilized to carry out stretching motion along the axial direction of outer cane further, realize the function of the length extending or shorten crutch.

In an embodiment of the utility model electric telescopic stick, comprise one first switch module and be electrically connected battery and motor, in order to control the rotating of the startup of motor, stopping and motor.

In an embodiment of the utility model electric telescopic stick, lever also comprises a luminescence component and a second switch assembly, luminescence component is connected to battery by second switch electrical component, controls lighting and closing, in order to providing the illumination functions of flashlight of luminescence component by second switch assembly.

In an embodiment of the utility model electric telescopic stick, a gear and worm screw is had to combine with coaxial relation, the output shaft of motor be installed with a driving gear can with described gears meshing, motor rotates the effect that can obtain and slow down and increase torsion and export by driving gear and gear driven worm screw.

The utility model electric telescopic stick can be understood by above-mentioned technology contents and there is following advantage and effect, wherein motor is rotated by driving gear and gear driven worm screw, recycling worm screw and helical gear drive bolt rotary, have the effect slowed down and increase torsion and export; Be arranged at interior cane top nut can interior cane along outer cane axial direction slide time prevent interior cane from rotating, on the other hand slided along the bearing of trend of the guide channel of outer cane by guiding block can reducing friction resistance for nut, guide channel is located at the inside diameter surface of outer cane, outer cane can't see any groove in appearance, interior cane outer surface also without any protuberance, there is the effect of aesthetic appeal.

About detailed description of the invention of the present utility model and other advantage and effect, be described as follows graphic for cooperation.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1, for the utility model electric telescopic stick an embodiment overlook structure profile diagram;

Fig. 2 is the local structure sectional drawing of embodiment in II-II position of Fig. 1;

Fig. 3 is the local structure enlarged drawing of the embodiment of Fig. 2;

Fig. 4, for Fig. 2 is at the structure profile diagram of IV-IV position;

Fig. 5 is the structure profile diagram of another embodiment of the utility model electric telescopic stick;

Fig. 6 A is the operation chart of the utility model electric telescopic stick, illustrates the situation that interior cane shortens;

Fig. 6 B is the operation chart of the utility model electric telescopic stick, illustrates the situation that interior cane extends.

Symbol description

10 levers

11 battery chambers

12 batteries

13 battery covers

131 Elastic buckles

14 luminescence components

15 second switch assemblies

20 outer canes

21 guide channels

Cane in 30

31 nuts

311 guiding blocks

32 foots pad

40 motors

41 first switch modules

42 driving gears

50 first transmission components

51 gears

52 worm screws

60 second transmission components

61 helical gears

611 sleeve pipes

62 connectors

70 screw rods

Detailed description of the invention

First refer to Fig. 1, Fig. 2 and Fig. 3, an embodiment of the utility model electric telescopic stick, comprising: cane 30 and a driving mechanism in the outer cane 20, of a lever 10.

Lever 10 is a kind of housing of hollow substantially, a battery chamber 11 is provided with in order to hold battery 12 in the inside of lever 10, one opening of battery chamber 11 is provided with a battery cover 13, one end of battery cover 13 is articulated in the bottom of lever 10 rotationally in order to cover the opening of battery chamber 11, the other end of battery cover 13 has the edge that an Elastic buckle 131 can fasten the opening of battery chamber 11, provides battery 12 to pass in and out the opening of battery chamber 11.In another embodiment, lever 10 also comprises luminescence component 14 and a second switch assembly 15 (as shown in Figure 5), luminescence component 14 is electrically connected on the battery 12 of battery chamber 11 by second switch assembly 15, control lighting of luminescence component 14 by second switch assembly 15 and close, described luminescence component 14 can be light emitting diode (LED) and bulb wherein any one, provides the illumination functions of flashlight by this.

Outer cane 20 is a kind of tube element, and the inside diameter surface of outer cane 20 has the guide channel 21 extended along parallel axis direction, and one end of outer cane 20 is fixedly connected on lever 10, and the top of outer cane 20 is communicated with the inside of lever 10; Described guide channel 21 is located at the inside diameter surface of outer cane 20, because cane 20 can't see any groove in appearance in addition, has the effect of aesthetic appeal.

Interior cane 30 is a kind of tube element, interior cane 30 is arranged among outer cane 20 with coaxial relation and also can slides along the axial direction of outer cane 20, the inside on the top of interior cane 30 is installed with a nut 31, nut 31 has towards the outstanding guiding block 311 of radial outside, guiding block 311 projects to the outside of interior cane 30 and can slide (as shown in Figure 4) along the bearing of trend of the guide channel 21 of outer cane 20, interior cane 30 can be driven the axial direction along outer cane 30 to slide by nut 31, and then has telescopic function; In an embodiment, the bottom of interior cane 30 is installed with a foot pad 32, and an embodiment of foot pad 32 is by rubber, spring and other has the assembly of pooling feature or material wherein any one manufactures.

Driving mechanism comprises: the battery 12 that a motor 40 is arranged among lever 10, one first switch module 41 is electrically connected battery chamber 11 and motor 40 are in order to control action, one first transmission component 50,1 second transmission component 60 and a screw rod 70 of motor 40, in an embodiment, first transmission component 50 comprises: gear 51 and a worm screw 52, gear 51 and worm screw 52 combine with coaxial relation, the output shaft of motor 40 is installed with a driving gear 42 and can engages with the gear 51 of the first transmission component 50, motor 40 is utilized to drive the first transmission component 50 to rotate, in an embodiment, the second transmission component 60 comprises: a helical gear 61 and a connector 62, in an embodiment, the axial bottom of helical gear 61 has a sleeve pipe 611, the top of screw rod 70 is penetrated by the bottom of lever 10 rotationally, sleeve pipe 611 can be sheathed on the top of screw rod 70, the top of helical gear 61 and screw rod 70 is linked together by recycling connector 62, in the embodiment that Fig. 3 shows, connector 62 is wherein bolt, bolt is linked together with the top of coaxial relation by helical gear 61 and screw rod 70, screw rod 70 with coaxial relation stretch into rotationally interior cane 30 axis and together with being screwed on the nut 31 of interior cane 30, can be produced by the first transmission component 50 and the second transmission component 60 when motor 40 rotates and slow down and increase the effect of torsion, therefore the rotational motion of motor 40 can be sent to screw rod 70 by the first transmission component 50 and the second transmission component 60, recycling screw rod 70 drives interior cane 30 to carry out stretching motion along the axial direction of outer cane 20.

In an embodiment, the action of described motor 40 comprises: the startup of motor, the rotating of stopping and motor, wherein a kind of embodiment, described motor 40 is d.c. motor, first switch module 41 is for a kind of two pass (switch) of cutting can change the direction of the DC current of supply d.c. motor and then control the rotating of motor 40, as shown in Fig. 6 A and Fig. 6 B, user can control motor 40 by the first switch 41 and carry out forward and reverse rotation, screw rod 70 just can be utilized to drive interior cane 30 to carry out stretching motion along the axial direction of outer cane 20, realize the function of the length extending or shorten crutch.

Although the utility model by the above embodiments openly as above; so itself and be not used to limit the utility model; any those skilled in the art; not departing from spirit and scope of the present utility model; when doing a little change and retouching, therefore scope of patent protection of the present utility model must be as the criterion depending on the claim person of defining of the present invention.

Claims

1. an electric telescopic stick, it is characterized in that, comprise: a lever, cane in one outer cane and, the inside of this lever is equiped with battery and a driving mechanism, one end of this outer cane is fixedly connected on this lever, this outer cane and this interior cane are all a kind of tube element, this interior cane is arranged among this outer cane with coaxial relation and also can slides along the axial direction of this outer cane, this driving mechanism at least comprises a motor, one worm screw, one helical gear and a screw rod, the inside diameter surface of this outer cane has the guide channel extended along parallel axis direction, the inside on the top of this interior cane is installed with a nut, this nut has towards the outstanding guiding block of radial outside, this guiding block projects to the outside of this interior cane and can slide along the bearing of trend of this guide channel of this outer cane, the output shaft of this motor is connected with this worm screw and this worm screw can be driven to rotate, this worm screw engages with this helical gear to drive this helical gear to rotate, the top of this screw rod connects with coaxial relation and this helical gear, this screw rod with coaxial relation stretch into rotationally this interior cane axis and together with being screwed on this nut, this screw rod can drive this nut to slide with the axial direction of this interior cane along this outer cane.

2. electric telescopic stick as claimed in claim 1, is characterized in that, wherein this lever comprises one first switch module and is electrically connected this battery and this motor, in order to control the rotating of the startup of this motor, stopping and this motor.

3. electric telescopic stick as claimed in claim 1, it is characterized in that, wherein this lever comprises a luminescence component and a second switch assembly, and this luminescence component is connected to this battery by this second switch electrical component, is controlled lighting of this luminescence component by this second switch assembly and is closed.

4. electric telescopic stick as claimed in claim 1, it is characterized in that, a gear and this worm screw is wherein had to combine with coaxial relation, this output shaft of this motor be installed with a driving gear can with this gears meshing of this worm screw, this motor is rotated by this driving gear and this worm screw of this gear driven.

5. electric telescopic stick as claimed in claim 1, it is characterized in that, wherein this helical gear axial bottom has a sleeve pipe, the top of this screw rod is penetrated by the bottom of this lever rotationally, this sleeve pipe can be sheathed on the top of this screw rod, is linked together by the top of a bolt by this helical gear and this screw rod.

6. electric telescopic stick as claimed in claim 1, it is characterized in that, wherein the bottom of this interior cane is installed with a foot pad, and this foot pad is that wherein any one is made by rubber and spring.