CN110395340B

CN110395340B - Manual and electric folding device

Info

Publication number: CN110395340B
Application number: CN201810372003.6A
Authority: CN
Inventors: 王召伟
Original assignee: Nanjing Jin Bai He Medical Apparatus Co ltd
Current assignee: Nanjing Jin Bai He Medical Apparatus Co ltd
Priority date: 2018-04-24
Filing date: 2018-04-24
Publication date: 2020-10-20
Anticipated expiration: 2038-04-24
Also published as: CN110395340A

Abstract

The invention discloses a manual and electric folding device, which belongs to the technical field of medical instruments and comprises a folding assembly, a push rod shaft and a rotating main shaft, wherein the folding assembly comprises a hook shaft, two ends of the hook shaft are welded on a fixed plate, two reinforcing rods are symmetrically welded in the middle of the hook shaft, and the free ends of the reinforcing rods penetrate through the symmetrically arranged fixed plate and then are arranged in sliding grooves of frame fixing pieces on the corresponding sides; two ends of the rotating main shaft penetrate through the fixing plates respectively and then are installed on the frame connecting piece, a handle assembly is arranged on the rotating main shaft, two ends of the push rod shaft are fixed on the half-open groove body, and the push rod shaft is driven by an electric push rod. The manual and electric folding device is simple and compact in structure, can realize manual folding and electric folding, realizes easy folding without burden, and is suitable for various folding vehicles.

Description

Manual and electric folding device

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a manual and electric folding device.

Background

The electric scooter is mainly used for a scooter driven by electric power, can move forward, move backward and turn, can be used indoors and outdoors, and is easy and convenient to operate.

The scooter is heavier and can not be folded and stored in the existing market, the scooter occupies a space when being placed, and communication tools on the scooter can not be carried, so that the scooter is very inconvenient for users. The folded structure of the traditional folding mode is still large.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide a manual and electric folding device which is simple and compact in structure, can be mounted on various folding vehicles for use, and can be folded easily without burden.

The technical scheme is as follows: in order to achieve the purpose, the invention adopts the following technical scheme:

the manual and electric folding device comprises a folding assembly, a push rod shaft and a rotating main shaft, wherein the folding assembly comprises a hook shaft, two ends of the hook shaft are welded on a fixing plate, two reinforcing rods are symmetrically welded in the middle of the hook shaft, and free ends of the reinforcing rods penetrate through the symmetrically arranged fixing plate and then are arranged in sliding grooves of frame fixing pieces on the corresponding sides; the two ends of the rotating main shaft penetrate through the fixing plates respectively and then are installed on the frame connecting piece, a handle assembly is arranged on the rotating main shaft, the two ends of the push rod shaft are fixed on the half-open groove body, and the push rod shaft is driven by an electric push rod.

The handle assembly comprises a handle piece and a handle, and two ends of the handle piece are fixed on the rotating main shaft through the handle.

The semi-open tank body on cover and set up fixed subassembly, fixed subassembly includes back location axle, preceding location axle, slip fixed section and waist groove, symmetrical welded fastening back location axle, preceding location axle on the slip fixed section, the bilateral symmetry at the slip fixed section sets up the waist groove.

Two tension springs are symmetrically arranged on the inner side of the sliding fixing section, one end of each tension spring is fixed on the rear positioning shaft, and the other end of each tension spring is fixed on the push rod shaft.

One end of the handle sheet is fixed at the end part of the handle, and the other end of the handle sheet is fixed on the rotating main shaft, and the protruding part of the handle sheet is clamped between the rear positioning shaft and the front positioning shaft.

The semi-open groove comprises two symmetrical groove pieces and a connecting section for connecting the two groove pieces, wherein bayonets and fixed ends are arranged at two ends of the groove pieces respectively, a preformed hole is formed between the bayonets and the fixed ends, one end of each groove piece is clamped on a hook shaft through the bayonets, and the rear end of each groove piece is sleeved on a rotating main shaft through the fixed ends.

Half the preformed hole of cell body and the waist groove coincide of fixed subassembly after form the fixed orifices of two symmetries, pass through behind this fixed orifices push rod shaft's the both ends and lock through the nut.

The front frame pipe and the rear frame pipe are connected through a frame connecting piece, frame fixing pieces are symmetrically arranged on the inner side of the front frame pipe, an electric push rod matched with the two rear wheels is arranged between the two rear wheels, and a manual and electric folding device is arranged between the front frame pipe and the rear frame pipe; one end of the electric push rod is fixed on the push rod shaft, and the other end of the electric push rod is driven by the motor. The folding bicycle frame comprises a front bicycle frame pipe, a rear bicycle frame pipe, a front bicycle frame folding piece, a rear bicycle frame folding piece, a front bicycle frame folding piece and a rear bicycle frame folding piece, wherein the front bicycle frame folding piece is symmetrically arranged on the inner side of the front bicycle frame pipe; one end of the rear frame folding piece is fixed on the frame fixing piece through a shaft, and the other end of the rear frame folding piece is fixed on the seat short pipe through a shaft.

Has the advantages that: compared with the prior art, the manual and electric folding device is simple and compact in structure, can realize manual folding and electric folding, realizes easy folding without burden, and is suitable for various folding vehicles.

Drawings

FIG. 1 is a front view of a manual powered folding device applied to a mobility scooter;

FIG. 2 is a schematic view of a folding process of the scooter;

FIG. 3 is a schematic view of the folded scooter;

FIG. 4 is a schematic view of a bottom frame structure of the manual/electric folding device applied to the scooter;

FIG. 5 is a schematic view of a manual and electric folding device;

FIG. 6 is a schematic view of a manual/electric folding unit with a rolling bearing;

FIG. 7 is a schematic view of the manual/electric folding assembly with the tension spring installed;

FIG. 8 is a schematic view of the fixing assembly;

FIG. 9 is a schematic view of a half-open tank mounting structure;

FIG. 10 is a schematic view of the assembled half-open tank and fixing assembly;

FIG. 11 is a schematic view showing the mounting position of the battery pack assembly of the manual and electric folding device;

fig. 12 is a schematic structural view of a battery cartridge assembly;

FIG. 13 is a schematic view of the hook assembly;

FIG. 14 is a schematic view of the hook assembly shown disassembled;

FIG. 15 is a schematic view of the hook attachment point of the manually powered folding device when deployed;

fig. 16 is a schematic view of the hook fastening point when the manual and electric folding device is folded.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

As shown in fig. 1-16, the reference numerals are as follows: the folding bicycle comprises a handlebar 1, a cushion 2, a backrest 3, a push rod motor 4, a rear wheel 5, a rear frame tube 6, an electric push rod 7, a manual and electric folding device 8, a front frame tube 9, a bicycle head 10, a front wheel 11, a handlebar stem 12, a front frame folding piece 13, a rear frame folding piece 14, a roller 15, an anti-tilting wheel 16, a hook assembly 17, a frame fixing piece 18, a frame connecting piece 19, a seat short tube 20, a push rod shaft 21, a rotating main shaft 22, a handle assembly 23, a folding assembly 24, a fixing assembly 25, a half-open groove body 26, a rolling bearing 27, a battery box assembly 28, a seat long tube 29, a nut 30, a tension spring 31, a first fixing point 32 and a second fixing point 33.

Wherein, the hook assembly 17 comprises a hook body 171, a hook bolt 172, a first fixing member 173, a second fixing member 174, a fixing member screw 175 and a spring 176; the handle assembly 23 includes a handle piece 231 and a handle bar 232; the folding assembly 24 comprises a reinforcing rod 241, a hook shaft 242, a fixing plate 243 and a fixing shaft sleeve 244; the fixing assembly 25 comprises a rear positioning shaft 251, a front positioning shaft 252, a sliding fixing section 253 and a waist groove 254; the half-open groove body 26 comprises a bayonet 261, a fixed end 262, a connecting section 263 and a reserved hole 264; the battery pack assembly 28 includes a lithium battery main body 281, a lithium battery fixing slide 282, and a discharge plug 283.

As shown in fig. 1-4, the manual and electric folding scooter comprises a scooter head 10, a front frame tube 9 and a rear frame tube 6 which are connected in sequence; the front frame tube 9 and the rear frame tube 6 are connected through a frame connecting piece 19, and a manual and electric folding device 8 is arranged between the front frame tube 9 and the rear frame tube 6. The bicycle head 10 comprises a handlebar 1 and a handlebar stem 12, wherein the handlebar 1 is arranged on the handlebar 12, and the handlebar stem 12 is fixed at the front end of the front frame tube 9. The front wheels 11 are symmetrically arranged on two sides of the vehicle head 10. Rear wheels 5 are arranged on two sides of the rear frame tube 6, and an anti-roll wheel 16 matched with each rear wheel 5 is arranged. An electric push rod 7 matched with the two rear wheels 5 is arranged between the two rear wheels 5, one end of the electric push rod 7 is fixed on a push rod shaft 21, and the other end of the electric push rod 7 is driven by a motor.

The backrest 3 is arranged on one side of the seat cushion 2, the seat long pipe 29 and the seat short pipe 20 which are matched with each other are arranged below the seat cushion 2, the seat long pipe 29 and the seat short pipe 20 are arranged in a mutually crossed mode through a rotating shaft, and the seat long pipe 29 and the seat short pipe 20 are respectively fixed on the rear frame pipe 6. A seat auxiliary folding piece is arranged below the seat cushion 2, one end of the seat auxiliary folding piece is fixed on the seat cushion 2, and the other end of the seat auxiliary folding piece is fixed on the seat long tube 29. A backrest auxiliary folding piece is arranged between the seat auxiliary folding piece and the backrest 3, one end of the backrest auxiliary folding piece is fixed on the seat auxiliary folding piece, and the other end of the seat auxiliary folding piece is fixed on the backrest 3. At the end of the seat long tube 29 near the backrest 3 are rollers 15. The manual electric folding device is limited by the hook component 17 after being folded.

The inner side of the front frame pipe 9 is symmetrically provided with a front frame folding piece 13, the inner side of the rear frame pipe 6 is symmetrically provided with a rear frame folding piece 14, and the inner side of the front frame pipe 9 is symmetrically provided with a frame fixing piece 18. One end of the front frame folding sheet 13 is fixed on the head 10 through a shaft, and the other end is fixed on the front end of the rear frame pipe 6 through a shaft; one end of the rear frame folding piece 14 is fixed on the frame fixing piece 18 through a shaft, and the other end is fixed on the seat short pipe 20 through a shaft.

As shown in fig. 5-8, the manual and electric folding device 8 comprises a push rod shaft 21, a rotating main shaft 22, a handle assembly 23, a folding assembly 24, a fixing assembly 25, a semi-open groove body 26 and a rolling bearing 27. The handle assembly 23 includes a handle plate 231 and a handle 232, and two ends of the handle plate are fixed on the rotating main shaft 22 through the handle 232; the folding assembly 24 includes a reinforcing bar 241, a hooking shaft 242, a fixing plate 243, and a fixing bushing 244, both ends of the hooking shaft 242 are welded to the fixing plate 243, two reinforcing bars 241 are symmetrically welded to the middle of the hooking shaft 242, and the reinforcing bars 241 are disposed in the open sliding grooves of the frame fixing plates 18 of the corresponding sides through the fixing bushing 244 and the rolling bearings 27 through the fixing plate 243. The two ends of the rotating main shaft 22 are respectively installed on the frame connecting member 19 after passing through the fixing plate 243.

The fixing assembly 25 comprises a rear positioning shaft 251, a front positioning shaft 252, a sliding fixing section 253 and a waist groove 254, wherein the rear positioning shaft 251 and the front positioning shaft 252 are symmetrically welded and fixed on the sliding fixing section 253, and the waist grooves 254 are symmetrically arranged on two sides of the sliding fixing section 253. Two tension springs 31 are symmetrically arranged on the inner side of the sliding fixing section 253, one end of each tension spring 31 is fixed on the rear positioning shaft 251, and the other end of each tension spring 31 is fixed on the push rod shaft 21.

As shown in fig. 9, the half-open slot body 26 includes two symmetrically disposed slot pieces and a connection section 263 connecting the two slot pieces, wherein a bayonet 261 and a fixed end 262 are disposed at two ends of the slot pieces respectively, a reserved hole 264 is disposed between the bayonet 261 and the fixed end 262, one end of the slot piece is clamped on the hook shaft 242 through the bayonet 261, and the rear end is sleeved on the rotary spindle 22 through the fixed end 262.

As shown in fig. 10, one end of the handle piece 231 is fixed to the end of the handle bar 232, the other end of the handle piece 231 is fixed to the rotating main shaft 22, and the rear protruding portion is clamped between the rear positioning shaft 251 and the front positioning shaft 252, so that the user can move the sliding fixing section 253 back and forth by moving the handle assembly 23 back and forth to contact the rear positioning shaft 251 and the front positioning shaft 252. The preformed hole 264 of the half-open groove body 26 and the waist groove 254 of the fixing component 25 are overlapped to form two symmetrical fixing holes, and two ends of the push rod shaft 21 penetrate through the fixing holes and are locked through the nuts 30.

The hook shaft 242 and the fixing plate 243 are welded and integrated, and can independently rotate around the rotating main shaft 22 under the condition that the electric push rod 7 does not act; the half-open groove body 26 is connected with the hook shaft 242 through the rotating main shaft 22, the rotating main shaft 22 is used as a rotating point, the handle sheet 231 is pushed forwards and backwards through the handle sheet 231 by taking the rear positioning shaft 251 and the front positioning shaft 252 as limiting points, and therefore the fixing assembly 25 moves forwards and backwards; when the handle sheet 231 is pushed backwards, the front positioning shaft 252 is contacted to enable the sliding fixing section to move forwards to lock the half-opened groove body 26 for limiting, and when the handle sheet 231 is pushed forwards, the rear positioning shaft 251 is contacted to enable the sliding fixing section 253 to move backwards to unlock the half-opened groove body 26, so that the sliding fixing section rotates around the rotating main shaft 22.

As shown in fig. 11 to 12, a battery box assembly 28 is provided between the rear frame tubes 6, and the battery box assembly 28 includes a lithium battery main body 281, a lithium battery fixing slide 282, and a discharge plug 283. A discharging plug 283 is provided at the bottom of the lithium battery fixing slide groove 282, and a lithium battery main body 281 is inserted into and pulled out of the lithium battery fixing slide groove 282 to act on the controller by discharging.

As shown in fig. 13 to 16, the hooking member 17 includes a hooking body 171, a hooking bolt 172, a first fixing member 173, a second fixing member 174, a fixing member screw 175, and a spring 176; the hook assembly 17 is fixed on the front frame tube 9 by a hook bolt 172 and a fixing screw 175; the hook 171 is fixed between the first fixing member 173 and the second fixing member 174 by the hook bolt 172 and the fixing member screw 175.

Be equipped with two positive and negative hooks on coupler 171, make coupler 171 rotate around second mounting 174 through external force, through the fixed angle of unfolding with folding of two positive and negative hooks, two total limit points, it is fixed to turn to certain angle spring 176 and pop out coupler 171 angle. A spring 176 is secured within the hook bolt 172 bore so that the hook bolt 172 acts as a button. The button is hung at the first fixing point 32 when being unfolded through the hook bolt 172, and hung at the second fixing point 33 when being switched to be folded, so that a safety lock structure is realized.

One-key mechanical linkage working process of the manual electric folding device: the handlebar 12 is kept upright, the front frame tube 9 is folded upwards, the rear frame tube 6 is folded downwards, the two are combined, and simultaneously the cushion frame body is folded downwards to be close to the rear frame tube 6, the front wheel 11 and the rear wheel 5 are close to be combined, and the folding process is finished. The control principle of the manual electric folding device is that a user controls the folding remote controller, a transmission signal drives the push rod controller to start the battery, a push rod motor is driven, and the push rod motor drives the electric push rod 7 to extend out.

The manual electric folding device is realized by a multi-connecting-rod structure, a group of rotating structures and three groups of plane connecting-rod mechanisms. The folding assembly 24 rotates about the main rotation axis 22 to fold the "front frame assembly" rearward, the "rear frame assembly" upward, and the "seat assembly" downward.

The front frame assembly is folded backwards, and the front frame assembly is folded backwards through the motion trail of the folding assembly 24 for the front frame pipe 9 and the front frame folding sheet 13 (forming a parallelogram rotating structure).

The rear frame assembly is folded upwards, is folded backwards through the front frame pipe 9 and acts on the rear frame folding piece 14 to form a connecting rotating structure, and the rear frame pipe 6 is folded upwards by matching with the backward folding of the front frame pipe 9.

The seat assembly is folded downwards, and the seat assembly is moved to be folded downwards through the angle change of the seat short pipe 20 and the seat long pipe 29 to form a quadrilateral structure.

Working process of the electric operation mode: the electric push rod 7 directly acts on the push rod shaft 21, and then drives the half-open groove body 26 to rotate around the rotating main shaft 22, the half-open groove body 26 is not unlocked, the bayonet 261 of the half-open groove body 26 is always clamped with the hook shaft 242, the folding assembly 24 rotates to drive the fixed shaft sleeve 244 to slide in the frame fixing piece 18 through the rolling bearing 27, and then the folding assembly 24 is pulled to rotate around the rotating main shaft 22, and then the front frame pipe 9 and the rear frame pipe 6 are driven to be folded or unfolded.

Working process of the manual operation mode: handle piece 231 is stirred around acting on handle 232 through external force, promote the fixed subassembly 25 back-and-forth movement, half-open cell body 26 of unblock, electric putter 7 does not move this moment and supports push rod shaft 21 fixed, play the half-open cell body 26 action of restriction, thereby make folding subassembly 24 independent movement play manual folding function, half-open cell body 26's bayonet 261 loosens couple axle 242 this moment, external force acts on handle 232 upwards stimulates half-open cell body 26, and then 24 rotatory fixed axle sleeves 244 of drive of folding subassembly slide in frame stationary blade 18 through antifriction bearing 27, and then drive preceding frame pipe 9 and back frame pipe 6 folding or expand.

Claims

1. Manual electronic folding device, its characterized in that: the folding device comprises a folding assembly (24), a push rod shaft (21) and a rotating main shaft (22), wherein the folding assembly (24) comprises a hook shaft (242) with two ends welded on a fixing plate (243), two reinforcing rods (241) are symmetrically welded in the middle of the hook shaft (242), and the free end of each reinforcing rod (241) penetrates through the symmetrically arranged fixing plate (243) and then is arranged in a sliding groove of a frame fixing piece (18) on the corresponding side; the two ends of the rotating main shaft (22) penetrate through the fixing plates (243) respectively and then are installed on the frame connecting piece (19), the rotating main shaft (22) is provided with a handle assembly (23), the two ends of the push rod shaft (21) are fixed on the half-open groove body (26), and the push rod shaft (21) is driven through the electric push rod (7).

2. The manual, powered folding apparatus of claim 1, wherein: the handle assembly (23) comprises a handle sheet (231) and a handle (232), and two ends of the handle (232) are fixed on the rotating main shaft (22) through the handle sheet (231).

3. The manual, powered folding apparatus of claim 2, wherein: the semi-open groove body (26) is covered with a fixing component (25), the fixing component (25) comprises a rear positioning shaft (251), a front positioning shaft (252), a sliding fixing section (253) and a waist groove (254), the rear positioning shaft (251) and the front positioning shaft (252) are symmetrically welded and fixed on the sliding fixing section (253), and the waist grooves (254) are symmetrically arranged on two sides of the sliding fixing section (253).

4. The manual, powered folding apparatus of claim 3, wherein: two tension springs (31) are symmetrically arranged on the inner side of the sliding fixing section (253), one end of each tension spring (31) is fixed on the rear positioning shaft (251), and the other end of each tension spring (31) is fixed on the push rod shaft (21).

5. The manual, powered folding apparatus of claim 3, wherein: one end of the handle sheet (231) is fixed at the end part of the handle (232), and the other end is fixed on the rotating main shaft (22) and the convex part is clamped between the rear positioning shaft (251) and the front positioning shaft (252).

6. The manual, powered folding apparatus of claim 3, wherein: half-open cell body (26) include the groove piece that two symmetries set up and linkage segment (263) of connecting two groove pieces, set up bayonet socket (261) and stiff end (262) respectively at the both ends of groove piece, set up preformed hole (264) between bayonet socket (261) and stiff end (262), the one end of groove piece is passed through bayonet socket (261) card on couple axle (242), the other end cup joints on rotatory main shaft (22) through stiff end (262).

7. The manual, powered folding apparatus of claim 6, wherein: the semi-open groove structure is characterized in that two symmetrical fixing holes are formed after a preformed hole (264) of the semi-open groove body (26) and a waist groove (254) of the fixing component (25) are overlapped, and two ends of the push rod shaft (21) penetrate through the two fixing holes and then are locked through nuts (30).