CN207412754U - Performance bouncer - Google Patents
Performance bouncer Download PDFInfo
- Publication number
- CN207412754U CN207412754U CN201721310032.7U CN201721310032U CN207412754U CN 207412754 U CN207412754 U CN 207412754U CN 201721310032 U CN201721310032 U CN 201721310032U CN 207412754 U CN207412754 U CN 207412754U
- Authority
- CN
- China
- Prior art keywords
- wheel shaft
- horizontal
- wheel
- fixed
- horizontal wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Invalid Beds And Related Equipment (AREA)
Abstract
The utility model discloses a kind of performance bouncer, including vehicle frame, hoistable platform and multiple movable pulleys;The vehicle frame is equipped with the upper first horizontal wheel shaft, piston rod is equipped with drive seat, upper first fixed pulley is rotatablely connected with the upper first horizontal wheel shaft, upper second fixed pulley is rotatablely connected with the upper first horizontal wheel shaft, upper first movable pulley is rotatablely connected with the upper second horizontal wheel shaft, and upper second fixed pulley is rotatablely connected with the upper second horizontal wheel shaft;Upper wheel rope one end is fixed with vehicle frame, and the upper wheel rope other end is relatively fixed with hoistable platform.The beneficial effects of the utility model are:Can spring auxiliary effectively be carried out for performer, very big acceleration effect is provided in short stroke, performer can be made to obtain higher ejection speed;It is compact-sized, from heavy and light;Power source (hydraulic station) is separated with the utility model, and noise is low;Conveniently moving, can quickly replace use;Hydraulic control, speed is adjustable, and class adjusts the jumping height of performer at any time;Operation and Maintenance is simple, safe and reliable.
Description
Technical field
The utility model belongs to stage equipment technical field more particularly to a kind of performance bouncer.
Background technology
Currently in the main expression means in theatrics field, in addition to the consummate performance of performer, in many degree
On also to rely on the auxiliary of the special effects such as stage machinery, dance & art, stage property and sound, light, video, and filled in so more special efficacys
Putting middle stage machinery is most basic and is most widely used.Stage machinery acts not only as performer and other special efficacys dress
The carrier put can also directly participate in performance together with performer.Therefore the innovation and development of stage machinery, it is in theatrics
The innovation of existing mode plays the role of very positive with promotion.In current stage machinery, there is a kind of auxiliary bouncer, it can
To carry out acceleration lifting to performer, enable performer from " ejection " below stage to stage.But, current auxiliary spring dress
It puts, due to being limited (accelerating travel is limited) be subject to stage floor height, the ejection speed that performer obtains is generally all relatively low (usually every
Less than 0.5 meter of the second).
Utility model content
The utility model is to overcome deficiency of the prior art, and it is a kind of compact-sized reasonable to provide, and can effectively be
Performer carries out spring auxiliary, and very big acceleration effect is provided in short stroke, and performer can be made to be quickly obtained more high-elastic firing rate
The performance bouncer of degree.
To achieve these goals, the utility model uses following technical scheme:
A kind of performance bouncer, including
Vehicle frame, can the hoistable platform that slides up and down of relative frame and multiple movable pulleys for being arranged on bottom of frame;
The vehicle frame is equipped with speed-raising elevating mechanism, and speed-raising elevating mechanism includes driving hydraulic cylinder and two top sheave groups,
Driving hydraulic cylinder includes cylinder body, driving piston and piston rod, top sheave group include upper first fixed pulley, upper second fixed pulley, on
First movable pulley, upper second movable pulley, upper turning wheel and upper wheel rope;
The vehicle frame is equipped with the upper first horizontal wheel shaft, and piston rod is equipped with drive seat, and drive seat, which is equipped with, is in first
The upper second horizontal wheel shaft below horizontal wheel shaft, each upper first fixed pulley are rotatablely connected with the upper first horizontal wheel shaft, each upper second fixed pulley
It is rotatablely connected with the upper first horizontal wheel shaft, each upper first movable pulley is rotatablely connected with the upper second horizontal wheel shaft, each upper second fixed pulley
It is rotatablely connected with the upper second horizontal wheel shaft;
In a top sheave group:Upper turning wheel is in above hoistable platform, and upper wheel rope one end is fixed with vehicle frame, upper wheel rope
Successively around below upper first movable pulley, above upper first fixed pulley, upper second movable pulley lower section, upper second fixed pulley top and
Upper turning wheel top, the upper wheel rope other end are relatively fixed with hoistable platform.
Preferably, the speed-raising elevating mechanism further includes two lower sheave groups, lower sheave group include lower first fixed pulley,
Lower second fixed pulley, lower first movable pulley, lower second movable pulley, lower turning wheel and lower whorl rope;
The vehicle frame is equipped with the lower first horizontal wheel shaft, and it is horizontal that drive seat is equipped with lower second be in above lower first horizontal wheel shaft
Wheel shaft, each time the first fixed pulley are rotatablely connected with the lower first horizontal wheel shaft, and each time the second fixed pulley turns with the lower first horizontal wheel shaft
Dynamic connection, each time the first movable pulley are rotatablely connected with the upper second horizontal wheel shaft, and each time the second fixed pulley is rotated with the upper second horizontal wheel shaft
Connection;
In a lower sheave group:Lower turning wheel is in below hoistable platform, and lower whorl rope one end is fixed with vehicle frame, lower whorl rope
Successively around above lower first movable pulley, below lower first fixed pulley, above lower second movable pulley, below lower second fixed pulley and
Lower turning wheel lower section, the lower whorl rope other end are relatively fixed with hoistable platform.
Preferably, the hoistable platform is equipped with the first fixing piece and the second fixing piece, the first fixing piece and second are consolidated
Part office is determined in the opposite sides of hoistable platform;
Vehicle frame is equipped with First Transition wheel and the second transition wheel, and First Transition wheel and the second transition wheel are in hoistable platform
Lower section, First Transition wheel are in down between the first fixed pulley and the second transition wheel, the second transition wheel axis and upper turning wheel axis
It is in same perpendicular;
Upper wheel rope in one top sheave group is connected with the first fixing piece, the upper wheel rope and second in another top sheave group
Fixing piece connects and should be in top sheave group:Upper wheel rope is successively around lower second fixed pulley top, First Transition wheel lower section, second
Below transition wheel and lower turning wheel top;
Lower whorl rope in one lower sheave group is connected with the first fixing piece, the lower whorl rope and second in another lower sheave group
Fixing piece connects.
Preferably, the hoistable platform is slidably connected with vehicle frame, hoistable platform glide direction is vertical direction.
Preferably, cushion pad is equipped at the top of the hoistable platform.
Preferably, the movable pulley is universal wheel, vehicle frame is equipped with multiple fixing legs, and fixing leg includes vertical cloth
The screw body put is arranged on screw body lower end and for contacting the supporter on ground and being arranged on the turn hand of screw body upper end
Wheel, screw body through ride and with ride thread fitting.
Preferably, the upper first horizontal wheel shaft is fixed with vehicle frame, upper second horizontal wheel shaft is fixed with drive seat, and lower first is horizontal
Wheel shaft is fixed with vehicle frame, and lower second horizontal wheel shaft is fixed with drive seat, upper first horizontal axle axis, upper second horizontal axle axis, under
First horizontal axle axis and lower second horizontal axle axis are in same perpendicular.
Preferably, the upper first horizontal wheel shaft is rotatablely connected by bearing and the upper first horizontal wheel shaft, upper second fixed pulley
It being rotatablely connected by bearing and the upper first horizontal wheel shaft, lower first horizontal wheel shaft is rotatablely connected by bearing and the lower first horizontal wheel shaft, under
Second fixed pulley is rotatablely connected by bearing and the lower second horizontal wheel shaft.
Preferably, the piston rod arranges that cylinder body is connected with vehicle frame vertically, piston rod upper end is connected with driving piston,
Piston-rod lower end is connected with drive seat.
The beneficial effects of the utility model are:Can spring auxiliary effectively be carried out for performer, be provided for very in short stroke
Big acceleration effect can make performer obtain higher ejection speed;It is compact-sized, from heavy and light;Power source (hydraulic station) and this practicality
New separation, noise are low;Conveniently moving, can quickly replace use;Hydraulic control, speed is adjustable, and class adjusts the bullet of performer at any time
Jump degree;Operation and Maintenance is simple, safe and reliable.
Description of the drawings
Fig. 1 is the structure diagram of the utility model;
Fig. 2 is the enlarged drawing at A in Fig. 1;
Fig. 3 is the side view after the utility model hoistable platform rises;
Fig. 4 is the enlarged drawing at B in Fig. 3;
Fig. 5 is the enlarged drawing at C in Fig. 3;
Fig. 6 is the enlarged drawing at D in Fig. 3;
Fig. 7 is that the utility model moves the front view after hoistable platform rises.
In figure:Vehicle frame 1, First Transition wheel 11, the second transition wheel 12, hoistable platform 2, movable pulley 3, cylinder body 4, drive seat
41st, upper first fixed pulley 51, upper second fixed pulley 52, upper first movable pulley 53, upper second movable pulley 54, upper turning wheel 55, on
Take turns 56, upper first horizontal wheel shaft 57 of restricting, upper second horizontal wheel shaft 58, the first fixed pulley 61, lower second fixed pulley 62, lower first move cunning down
Wheel 63, lower second movable pulley 64, lower turning wheel 65, lower whorl rope 66, lower first horizontal wheel shaft 67, lower second horizontal wheel shaft 68, fixed branch
Foot 7, screw body 71, supporter 72, turn handwheel 73.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and detailed description.
In embodiment as shown in Figures 1 to 7, a kind of performance bouncer, including
Vehicle frame 1, can the hoistable platform 2 that slides up and down of relative frame and multiple movable pulleys 3 for being arranged on bottom of frame;
The vehicle frame is equipped with speed-raising elevating mechanism, and speed-raising elevating mechanism includes driving hydraulic cylinder and two top sheave groups,
Driving hydraulic cylinder includes cylinder body 4, driving piston and piston rod, and top sheave group includes upper first fixed pulley 51, upper second fixed pulley
52nd, upper first movable pulley 53, upper second movable pulley 54, upper turning wheel 55 and upper wheel rope 56;
The vehicle frame is equipped with the upper first horizontal wheel shaft 57, and piston rod is equipped with drive seat 41, and drive seat, which is equipped with, to be in
The upper second horizontal wheel shaft 58 below first horizontal wheel shaft, each upper first fixed pulley are rotatablely connected with the upper first horizontal wheel shaft, and each upper second
Fixed pulley is rotatablely connected with the upper first horizontal wheel shaft, and each upper first movable pulley is rotatablely connected with the upper second horizontal wheel shaft, and each upper second
Fixed pulley is rotatablely connected with the upper second horizontal wheel shaft;
In a top sheave group:Upper turning wheel is in above hoistable platform, and upper wheel rope one end is fixed with vehicle frame, upper wheel rope
Successively around below upper first movable pulley, above upper first fixed pulley, upper second movable pulley lower section, upper second fixed pulley top and
Upper turning wheel top, the upper wheel rope other end are relatively fixed with hoistable platform.
The speed-raising elevating mechanism further includes two lower sheave groups, and lower sheave group includes lower first fixed pulley 61, lower second
Fixed pulley 62, lower first movable pulley 63, lower second movable pulley 64, lower turning wheel 65 and lower whorl rope 66;
The vehicle frame is equipped with the lower first horizontal wheel shaft 67, and drive seat is equipped with lower second be in above lower first horizontal wheel shaft
Horizontal wheel shaft 68, each time the first fixed pulley are rotatablely connected with the lower first horizontal wheel shaft, each time the second fixed pulley with the lower first horizontal wheel
Axis is rotatablely connected, and each time the first movable pulley is rotatablely connected with the upper second horizontal wheel shaft, each time the second fixed pulley and the upper second horizontal wheel shaft
Rotation connection;
In a lower sheave group:Lower turning wheel is in below hoistable platform, and lower whorl rope one end is fixed with vehicle frame, lower whorl rope
Successively around above lower first movable pulley, below lower first fixed pulley, above lower second movable pulley, below lower second fixed pulley and
Lower turning wheel lower section, the lower whorl rope other end are relatively fixed with hoistable platform.
Upper first horizontal wheel shaft, upper second horizontal wheel shaft, lower second horizontal wheel shaft and lower first horizontal wheel shaft are from top to bottom sequentially distributed.
The hoistable platform is equipped with the first fixing piece and the second fixing piece, the first fixing piece and the second fixing piece office in
The opposite sides of hoistable platform;
Vehicle frame is equipped with 11 and second transition wheel 12 of First Transition wheel, and First Transition wheel and the second transition wheel are in lifting
Below platform, First Transition wheel is in down between the first fixed pulley and the second transition wheel, and the second transition wheel axis is taken turns with upper turning
Axis is in same perpendicular;
Upper wheel rope in one top sheave group is connected with the first fixing piece, the upper wheel rope and second in another top sheave group
Fixing piece connects and should be in top sheave group:Upper wheel rope is successively around lower second fixed pulley top, First Transition wheel lower section, second
Below transition wheel and lower turning wheel top;
Lower whorl rope in one lower sheave group is connected with the first fixing piece, the lower whorl rope and second in another lower sheave group
Fixing piece connects.
The hoistable platform is slidably connected with vehicle frame, and hoistable platform glide direction is vertical direction.The hoistable platform top
Portion is equipped with cushion pad.The presence of cushion pad can improve security and buffering protective capability.
The movable pulley is universal wheel, and vehicle frame is equipped with multiple fixing legs 7, and fixing leg includes the screw rod arranged vertically
Body 71 is arranged on screw body lower end and for contacting the supporter 72 on ground and being arranged on the turn handwheel 73 of screw body upper end,
Screw body through ride and with ride thread fitting.It, can be with each fixed branch angle (turn of turn after the utility model is moved into place
Handwheel), screw body rotation is driven to move down, supporter contact ground, movable pulley is made to leave ground, it is integrally-built so as to realize
Firm positioning.
The upper first horizontal wheel shaft is fixed with vehicle frame, and upper second horizontal wheel shaft is fixed with drive seat, lower first horizontal wheel shaft and vehicle
Frame is fixed, and lower second horizontal wheel shaft is fixed with drive seat, upper first horizontal axle axis, upper second horizontal axle axis, lower first horizontal wheel
Axis axis and lower second horizontal axle axis are in same perpendicular.The upper first horizontal wheel shaft passes through bearing and upper first
Horizontal wheel shaft rotation connection, upper second fixed pulley are rotatablely connected by bearing and the upper first horizontal wheel shaft, and lower first horizontal wheel shaft passes through axis
It holds and is rotatablely connected with the lower first horizontal wheel shaft, lower second fixed pulley is rotatablely connected by bearing and the lower second horizontal wheel shaft.The piston
Bar arranges that cylinder body is connected with vehicle frame vertically, and piston rod upper end is connected with driving piston, and piston-rod lower end is connected with drive seat.
During utility model works, the piston rod of driving hydraulic cylinder is released downwards, drive seat is driven to move down, at this time all horizontal strokes
Wheel shaft is all moved down by driving, and upper second horizontal wheel shaft drives each upper first movable pulley, each upper second movable pulley to move down, so as to each upper wheel
Rope hoistable platform is pulled up together, due to it is upper wheel rope bypassed two movable pulleys and two fixed pulleys, take turns above restrict with
The speed for being four times in drive seat draws high hoistable platform upwards, fast so as to reach by the increasing journey speedup of this compound pulley mechanism
Speed promotes platform, the quick purpose for bouncing performer.Similarly, lower second horizontal wheel shaft drives each time the first movable pulley, moves for each time second
Pulley moves down, and since lower whorl rope has bypassed two movable pulleys and two fixed pulleys, so lower whorl rope is with hoistable platform, (first fixes
Part or the second fixing piece) connecting pin be also to be servo-actuated rising to be four times in the speed of drive seat.Conversely, the piston of driving hydraulic cylinder
Bar is retracted upwards, then hoistable platform, which declines, resets (without rate request when hoistable platform declines).The utility model before use, quilt
After promoting in place, fixing leg can be screwed off, stablizes overall structure;After the utility model use, fixed spike can be spun up,
Can the utility model easily be pushed into appropriate location using each movable pulley (universal wheel) to store.
Claims (9)
1. a kind of performance bouncer, it is characterized in that, including
Vehicle frame, can the hoistable platform that slides up and down of relative frame and multiple movable pulleys for being arranged on bottom of frame;
The vehicle frame is equipped with speed-raising elevating mechanism, and speed-raising elevating mechanism includes driving hydraulic cylinder and two top sheave groups, driving
Hydraulic cylinder includes cylinder body, driving piston and piston rod, and top sheave group includes upper first fixed pulley, upper second fixed pulley, upper first
Movable pulley, upper second movable pulley, upper turning wheel and upper wheel rope;
The vehicle frame is equipped with the upper first horizontal wheel shaft, and piston rod is equipped with drive seat, and drive seat, which is equipped with, is in the first horizontal wheel
The upper second horizontal wheel shaft below axis, each upper first fixed pulley are rotatablely connected with the upper first horizontal wheel shaft, each upper second fixed pulley with it is upper
First horizontal wheel shaft rotation connection, each upper first movable pulley with the upper second horizontal wheel shaft rotation connection, each upper second fixed pulley with
Upper second horizontal wheel shaft rotation connection;
In a top sheave group:Upper turning wheel is in above hoistable platform, and upper wheel rope one end is fixed with vehicle frame, and upper wheel rope is successively
Around below upper first movable pulley, above upper first fixed pulley, upper second movable pulley lower section, upper second fixed pulley top and on turn
Above horn ring, the upper wheel rope other end is relatively fixed with hoistable platform.
2. performance bouncer according to claim 1, it is characterized in that, the speed-raising elevating mechanism is further included under two
Pulley blocks, lower sheave group include lower first fixed pulley, lower second fixed pulley, lower first movable pulley, lower second movable pulley, lower turning
Wheel and lower whorl rope;
The vehicle frame is equipped with the lower first horizontal wheel shaft, and drive seat is equipped with the lower second horizontal wheel being in above lower first horizontal wheel shaft
Axis, each time the first fixed pulley are rotatablely connected with the lower first horizontal wheel shaft, and each time the second fixed pulley is rotated with the lower first horizontal wheel shaft
Connection, each time the first movable pulley are rotatablely connected with the upper second horizontal wheel shaft, and each time the second fixed pulley is rotated with the upper second horizontal wheel shaft to be connected
It connects;
In a lower sheave group:Lower turning wheel is in below hoistable platform, and lower whorl rope one end is fixed with vehicle frame, and lower whorl rope is successively
Around above lower first movable pulley, below lower first fixed pulley, above lower second movable pulley, below lower second fixed pulley and under turn
Below horn ring, the lower whorl rope other end is relatively fixed with hoistable platform.
3. performance bouncer according to claim 2, it is characterized in that, the hoistable platform is equipped with the first fixing piece
And second fixing piece, the first fixing piece and the second fixing piece office are in the opposite sides of hoistable platform;
Vehicle frame is equipped with First Transition wheel and the second transition wheel, and First Transition wheel and the second transition wheel are under hoistable platform
Just, under First Transition wheel is between the first fixed pulley and the second transition wheel, at the second transition wheel axis and upper turning wheel axis
In same perpendicular;
Upper wheel rope in one top sheave group is connected with the first fixing piece, and the upper wheel rope and second in another top sheave group are fixed
Part connects and should be in top sheave group:Upper wheel rope is successively around lower second fixed pulley top, First Transition wheel lower section, the second transition
Wheel lower section and lower turning wheel top;
Lower whorl rope in one lower sheave group is connected with the first fixing piece, and the lower whorl rope and second in another lower sheave group are fixed
Part connects.
4. according to the performance bouncer described in claim 1 or 2 or 3, it is characterized in that, the hoistable platform is slided with vehicle frame
Connection, hoistable platform glide direction are vertical direction.
5. performance bouncer according to claim 1, it is characterized in that, cushion pad is equipped at the top of the hoistable platform.
6. performance bouncer according to claim 1, it is characterized in that, the movable pulley is universal wheel, is set on vehicle frame
There are multiple fixing legs, fixing leg includes the screw body arranged vertically, is arranged on screw body lower end and for contacting ground
Supporter and the turn handwheel for being arranged on screw body upper end, screw body through ride and with ride thread fitting.
7. performance bouncer according to claim 2, it is characterized in that, the upper first horizontal wheel shaft is fixed with vehicle frame,
Upper second horizontal wheel shaft is fixed with drive seat, and lower first horizontal wheel shaft is fixed with vehicle frame, and time the second horizontal wheel shaft is fixed with drive seat, and upper the
One horizontal axle axis, upper second horizontal axle axis, lower first horizontal axle axis and lower second horizontal axle axis are in same perpendicular
In straight plane.
8. performance bouncer according to claim 2, it is characterized in that, the upper first horizontal wheel shaft by bearing with it is upper
First horizontal wheel shaft rotation connection, upper second fixed pulley are rotatablely connected by bearing and the upper first horizontal wheel shaft, and lower first horizontal wheel shaft leads to
It crosses bearing to be rotatablely connected with the lower first horizontal wheel shaft, lower second fixed pulley is rotatablely connected by bearing and the lower second horizontal wheel shaft.
9. performance bouncer according to claim 1, it is characterized in that, the piston rod is arranged vertically, cylinder body and vehicle
Frame connects, and piston rod upper end is connected with driving piston, and piston-rod lower end is connected with drive seat.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721310032.7U CN207412754U (en) | 2017-10-11 | 2017-10-11 | Performance bouncer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721310032.7U CN207412754U (en) | 2017-10-11 | 2017-10-11 | Performance bouncer |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207412754U true CN207412754U (en) | 2018-05-29 |
Family
ID=62310945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201721310032.7U Active CN207412754U (en) | 2017-10-11 | 2017-10-11 | Performance bouncer |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207412754U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107670313A (en) * | 2017-10-11 | 2018-02-09 | 浙江大丰实业股份有限公司 | A kind of performance bouncer |
-
2017
- 2017-10-11 CN CN201721310032.7U patent/CN207412754U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107670313A (en) * | 2017-10-11 | 2018-02-09 | 浙江大丰实业股份有限公司 | A kind of performance bouncer |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN205819363U (en) | Novel bionic climbing robot | |
CN206577299U (en) | A kind of body-building single-person walking machine | |
CN203886109U (en) | Elliptical machine | |
CN206745955U (en) | A kind of swing that can adjust height | |
CN207412754U (en) | Performance bouncer | |
CN107670313B (en) | Bouncer is used in a kind of performance | |
CN201079163Y (en) | Automatically lifting judge's chair | |
CN207566781U (en) | Lifting device in a kind of Intelligent logistics transport vehicle | |
CN206989825U (en) | A kind of Lifting target machine | |
CN206594748U (en) | The elevating mechanism of automatic vending machine | |
CN203829556U (en) | Exercise device with adjustable travel span | |
CN205626852U (en) | A load gradual change formula counter weight for health and fitness facilities | |
CN207324057U (en) | A kind of multidimensional seat lifting structure | |
CN208234450U (en) | A kind of lifting sliding rail of grinding wheel | |
CN206799075U (en) | High pressure supports steady elevating mechanism | |
CN203362127U (en) | Oscillating bar type rack pumping unit | |
CN207739702U (en) | A kind of cantilevered machinery garage lifting mechanism | |
CN203763774U (en) | Travel-span adjustable exercise device | |
CN207401126U (en) | A kind of death flywheel gear | |
CN204671877U (en) | A kind of bowling-bowl automatic returning-back system | |
CN207406082U (en) | A kind of piler being used in the walking of tunnel stacking class machinery garage camber line | |
CN206141852U (en) | Automatic transportation platform device of lifting of buffering formula helicopter | |
CN207919149U (en) | A kind of auxiliary agent lifting device of forming machine | |
CN206032951U (en) | Boots device is led to elevator elasticity | |
CN204502363U (en) | Magnetic force walking assistant shoe |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |