CN2419875Y - Multifunction body building chair for office and home use - Google Patents
Multifunction body building chair for office and home use Download PDFInfo
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- CN2419875Y CN2419875Y CN 00234987 CN00234987U CN2419875Y CN 2419875 Y CN2419875 Y CN 2419875Y CN 00234987 CN00234987 CN 00234987 CN 00234987 U CN00234987 U CN 00234987U CN 2419875 Y CN2419875 Y CN 2419875Y
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- chair
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- family expenses
- chair back
- support
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Abstract
The utility model relates to a multifunctional body building chair for offices and families, which comprises a couch, a traction force device, a pedal device and an expanding device, wherein, the expanding device is composed of two bidirectional resistance devices (32) with circular pipes, two holding power rods (34) and a guide plate (33) of a telescopic resistance device, the intensity of the bidirectional resistance devices (32) with circular pipes can be adjusted, and the bidirectional resistance devices (32) with circular pipes are movably arranged on a chair back (30). Besides, the expanding device is also provided with an electric massaging device for legs, a waist twisting disc, etc. The utility model has the advantages of reasonable structural design, multiple functions, convenient use and low cost. The utility model can be used as a chair, a couch and a bed. In the meantime, the utility model has multiple body building and exercising functions, such as forward and reverse chest develop, extending and pulling force with multiple angles, pedal force, supporting force of double legs, kicking force, sit-up, etc. The utility model is widely suitable for being used in office places and families.
Description
The utility model relates to office appliance and body-building device, particularly a kind of multifunctional office family expenses ab lounge.
At present, the various family expenses of selling on the market, office chair, most simple function that only possesses seat.Occurred various body-building apparatus in recent years on the market, but most volume is big, heaviness all needs to occupy certain place, and does not possess office, rest function, or the cost height, costs an arm and a leg; Or function singleness, lack flexible function of use.Thereby be difficult for popularizing, or use and inconvenience.
Chinese patent 99215302.6 discloses and has a kind ofly partly constituted the multifunctional office ab lounge by couch, puller system, pedal device and chest expanding device etc., its function is more, can be used as common seat, chaise longue and bed uses, can be used as the exercising apparatus at positions such as upper and lower extremities simultaneously, but its chest expanding device adopts the bidirectional hydraulic cylinder structure, cost is higher, and it is desirable that outward appearance is owed, and uses inconvenience.
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art, a kind of seat that both had been fit to office space and family expenses is provided, has again simultaneously by chaise longue, positive and negative chest expanding, the multi-angle of organization of human body design and stretch pulling force, pedal power, both legs support power, play the office ab lounges that tilt to multiple functions such as 60 degree sit-ups that power, head are lower than foot.
Multifunctional office family expenses ab lounge of the present utility model belongs to a kind of innovative product of prior art, comprising: couch, puller system, the pedal device that is used for lower limb exercise and chest expanding device,
Described chest expanding device, by two the pipe resistance gauges (32) that can regulate intensity that are movably installed in behind the chair back (30), the guide plate (33) of two grip bars (34) and scalable resistance gauge is formed, " U " shape groove (35) of grip bar (34) and the two-way resistance gauge of pipe (32) upper end is connected, and the two-way resistance gauge of pipe (32) is installed in the gathering sill (36) behind the chair back (30) by guide plate (33).Its chest expanding device and puller system can be finished positive and negative chest expanding, multi-angle is stretched the pulling force exercise function, and its pedal device can be finished the power of pedaling, the both legs support power of lower limb part and play the power exercise function.
Description of drawings of the present utility model is as follows:
Fig. 1 is its overall structure front elevational schematic; Fig. 2 is its schematic side view; Fig. 3 is its chaise longue view; Fig. 4 is its view; Fig. 5 is its sit-ups view.
Fig. 1-each several part shown in Figure 5 is: the universal wheel of foreleg (1), exsertile foreleg (2) extension spring (3), two support leg device button soles (4), inverse-T-shaped transverse tube (5), be placed in the squeegee (6) of the band salient point on (5), inverse-T-shaped inner catheter (7), just "T"-shaped side's conduit (8), place conduit (7,8) Nei extension spring (9), be used to hang spring and A/C (7,8) bolt and handle (10), the transverse axis pipe (11) of just "T"-shaped spline, spline link to each other with seat support and be used for the locking (11) transverse axis pipe (12), chair frame (13), chair frame front end is the axle sleeve of axis (14) fixedly, the axis (15) of chair frame front end, being placed in axis (15) one ends is fixed in an end on the chair frame and places two torsion springs (16) under the chair seat board;
Support handle (17),
Rack rod (18),
The transverse axis at support two ends (19), be placed in axle sleeve (20) on (19),
Prop up the axis (21) of top of the trellis, be used for the rail-guided groove (22) that (20) slides, place the axle (23) of two vertical rods and the locking steel wire backguy of chair back lower end, back leg interlock backguy (24), the spill wheel (25) of backguy operation, place the extension spring (26) in the horizontal leg after two, horizontal leg (27) after telescopic two, two universal wheels (28) under the horizontal leg in back, chair seat board (29), the chair back and chair back frame (30), the intensity of two-way resistance gauge is regulated nut (31), two-way resistance gauge pipe (32), the retractility guide plate (33) that is used for fixing two-way resistance gauge pipe (32), grip bar (34), place the spill swivelling chute (35) of two-way resistance gauge pipe (32) upper end, the rail groove (36) that is used for flexible retractility guide plate (33), chest expander handle (37), universal wheel and " U " shape truss (38), extension spring (39), the backguy (40) that is connected with extension spring (39), the spill wheel (41) that is used for extension spring (39) and backguy (40) operation, " " handrail shape of falling is gone up frid (42), frid (43) under " " handrail, place two pulleys (44) in the frid under the handrail (43), the axis of two pulleys (45), handrail bend pipe (46), handrail axle sleeve (47), handrail axle (48), torsion spring on the handrail axle (49), convertible handle (50) on the handrail, angle level controller spanner (51), the angle level controller (52) that connects the chair back and seat support, crank type motor (53), be loaded on " U " shape support (54) that has canvas on the bent axle of motor two ends, the flexible guide plate (55) that crank type motor (53) is moved forward and backward, the fixing axis of chair frame (56), waist torsional disk (57), support wheel carrier (58) under the waist torsional disk, be used for waist torsional disk (57) flexible sliding support plate and truss (59), be connected the inverse-T-shaped kicking device spring-hanging board (60) that places under the chair seat board (29) with transverse axis pipe (11) back level, telescopic head rest (61)
At Fig. 1, in 2, shown pedal device contains: just "T"-shaped conduit (8), extension spring (9) in the conduit (8), the inverse-T-shaped pin pipe (7) of pedaling, pedal the built-in some extension springs of transverse tube (5) (3) of pin pipe (7), spike device climbers plectanes (4) are fixed at the two ends of extension spring (3), just "T"-shaped conduit (8) is enclosed within outside the inverse-T-shaped straight tube of pedaling pin pipe (7), both are drawn by fixing also can the stretching of bolt (10) that band is twisted handle, the coaxial installation of central siphon (12) of the transverse tube (11) of just "T"-shaped conduit (8) and chair seat board (29), (11) back upper end is equipped with inverted "L" shaped frame (60), and frame is connected with extension spring under the chair seat board (29).
Shown puller system places the back of the chair back (30), puller system is by two pulleys (41) in the chair back, two extension springs (39) and two handles (37) of being with backguys (40) that one end is fixed on the chair back are formed, and backguy (40) is walked around pulley (41) and is connected with the other end of extension spring (39).
Shown chest expanding device, by two the pipe resistance gauges (32) that can regulate intensity that are movably installed in behind the chair back (30), the guide plate (33) of two grip bars (34) and scalable resistance gauge is formed, " U " shape groove (35) of grip bar (34) and the two-way resistance gauge of pipe (32) upper end is connected, and the two-way resistance gauge of pipe (32) is installed in the gathering sill (36) behind the chair back (30) by guide plate (33).
The two-way resistance gauge of described pipe (32) comprising: upper end perforate, the externally threaded pipe of lower end band, place the some of pipe to cylinder-shaped sleeve, each all contacts with the inclined-plane cylinder-shaped sleeve, square torque arm, the adjusting nut of brute spring and pipe lower end, to passing in the oblong aperture the cylinder-shaped sleeve, spring places the cylinder-shaped sleeve lower end and regulates between the nut square torque arm from some.Adjust and regulate nut pine or tight.In the pipe each is shifted to cylinder-shaped sleeve, makes pressure increase or the minimizing of a lateral column of cylinder-shaped sleeve in the face of round tube inner wall, thereby makes the corresponding change of frictional force between the two.
Above-mentioned chest expanding device and puller system can be finished positive and negative chest expanding, multi-angle is stretched the pulling force exercise function, and its pedal device can be finished the power of pedaling, the both legs support power of lower limb part and play the power exercise function.
Take exercise in order to carry out arm strength, the handrail design of couch become the rubber-like armrest system, the handrail of couch (46) be "
" shape; handrail torsion spring (49) is set on the chair frame (13), and insert among the torsion spring (49) handrail (46) lower end, and torsion spring (49) two ends are connected with the chair frame with the central siphon (48) of handrail (46) respectively; two hands are outwards pushed handrail simultaneously, utilizes the elastic force of spring can carry out arm strength, wrist power exercise.
The handrail of couch (46) top is provided with the arm strength exerciser, described arm strength exerciser is made up of two interlock " " shape frid (42,43), handle (50), extension spring and pulleys (44), extension spring one end is fixed on the connecting axle (45) of frid up and down, the other end be fixed in after through pulley (44) frid (42) have handle (50) spool on, by rolling up the handle (50) of 180 degree, catching groove plate (42) can open on the handrail.Grip handle (50) 180 degree are held when rolling up, and can carry out the exercise of grip and big or small arm strength.
It also is provided with the mechanism that can realize chaise longue, bed and sit-ups function, three kinds of state diagrams such as Fig. 3, Fig. 4 and shown in Figure 5.This mechanism is made up of chair back adjusting device, seat support adjusting device and bascule.
Described chair back adjusting device constitutes like this, between the chair back (30) and chair seat board (29), gyrator (52) is set, the central siphon (12) of chair seat board (29), just "T"-shaped horizontal conduit (11) all are coaxially installed on the locating shaft (15) of chair frame (13) front end, and the angle between the chair back (30) and the chair seat board (29) is regulated by the handle of pulling on the gyrator (52) (51):
Described seat support adjusting device constitutes like this, chair frame (13) is gone up fixed hub guide plate (22), support (18) upper end of band handle is installed on chair seat board (29) bottom by axis (21), axle sleeve (20) is installed on support (18) lower end by minor axis (19), and axle sleeve (20) can slide in the gathering sill of guide plate (22);
Described bascule constitutes like this, the scalable horizontal leg (27) that has universal wheel (28) places in the pipe of chair frame (13) bottom, (27) be provided with extension spring (26) in, extension spring (26) one ends are fixed in the front portion, the end of chair frame (13), one end is fixed on the horizontal leg (27), be connected with two vertical rods (23) that stretch out back (30) lower end, both sides through spill wheel (25) by backguy (24) simultaneously, change angle by back (30), two vertical rods (23) are pulled out horizontal leg (27) interlock simultaneously: in the time of oppositely, the extension spring (26) in (27) is with horizontal leg (27) automatic drawing back.
Its seat support (29) can be designed to double-decker, opens 180 forward when spending when the upper strata of seat support, is buckled in inverse-T-shaped pipe (5) and becomes horizontal with seat support upper strata, seat support lower floor and the chair back (30) on the just "T"-shaped pipe (8), realizes the function of bed as shown in Figure 4.
Crank type shank electric massage device (53) is equipped with in the bottom of chair seat board (29).Being equipped with at fixing chair frame axle (56) can be to the guide plate (55) of front stretching, massage machine (53) is installed on the guide plate (55), at ordinary times massage machine be hidden in chair seat board below, by the broadband on two " U " shape framves the multi-section position of posterior calf is massaged during use.
Chair frame (13) lower floor is provided with flexible guiding trestle groove (59), upward place the rotating disk (57) that sways one's hips at flexible guiding trestle groove (59), sway one's hips and be equipped with one under the outside of rotating disk (57) and support wheel carrier (58), when the rotating disk that sways one's hips (57) when pulling out, can stand in the motion that sways one's hips on the rotating disk (57) in the chair back.
When the puller system of this office family expenses ab lounge, chest expanding device and pedal device are not opened, be the adjustable comfortable couch of a chair back and seat support, use as office chair, family expenses chair at ordinary times.During exercise, hold two handles on the chair back, be sitting in and make progress vertical on the chair at any time or to both sides or clean and jerk motion in the 90 degree scopes forwards.Use the chest expanding device can carry out positive and negative chest expanding exercise.Both hands can firmly open the handrail loam cake by holding handle (50) at any time on handrail at ordinary times, carry out the arm strength exercise or support the press forging refining to two outsides.
Pedal device is at ordinary times as foot rest.During exercise, can be used as the foot rest of putting that the hook device of the hook device of the pedal of power, kicking motion, sit-ups, chaise longue are pedaled in exercise.When making bed, open the seat support upper strata and be buckled on inverse-T-shaped transverse tube (5) and the conduit (8), form horizontal plane with the seat support lower floor and the chair back.During the support leg, with the climbers fastening foot on the spike device climbers plectanes (4), two legs stretch at interval laterally, by inverse-T-shaped some extension springs of pedaling in the pin pipe, realize that both legs support motion outside both sides.Do down and pedal when motion,, can finish down and pedal exercise as long as two forelegs (2) are stretched out or transverse axis pipe (11) is carried out angle orientation.Pedal power and kicking motion and can make the human body leg exercise freely according to the convenient conduit (7,8) of regulating of human body shank needs to suitable distance.
In order to realize chaise longue or sit-up exercise, regulate
Shape wheel carrier adjusting device makes chair seat board to suitable angle, adjust the chair back to corresponding position by gyrator, by with axis (15) on the locking spanner (12) on the teeth groove of having make pedal device and chair seat board to suitable location, position, promptly can be used as chaise longue and use or carry out sit-up exercise.Also two forelegs (2) can be stretched out simultaneously, tilt, strengthen exercise intensity thereby make sit-ups reach 60 degree.
Office family expenses ab lounge reasonable in design of the present utility model, function is many, and is easy to use, with low cost.Can be used as common seat, chaise longue and bed uses.Have simultaneously that positive and negative chest expanding, multi-angle are stretched pulling force, pedaled power, both legs support power, play multiple exercise functions such as power, sit-ups, be widely used in office space and family and use.
Claims (7)
1, a kind of multifunctional office family expenses ab lounge, comprising: couch, puller system, the pedal device that is used for lower limb exercise and chest expanding device is characterized in that:
Described chest expanding device, by two the two-way resistance gauges of pipe (32) that can regulate intensity that are movably installed in behind the chair back (30), the guide plate (33) of two grip bars (34) and scalable resistance gauge is formed, " U " shape groove (35) of grip bar (34) and the two-way resistance gauge of pipe (32) upper end is connected, and the two-way resistance gauge of pipe (32) is installed in the gathering sill (36) behind the chair back (30) by guide plate (33).
2, multifunctional office family expenses ab lounge according to claim 1, it is characterized in that the two-way resistance gauge of described pipe (32) comprising: upper end perforate, the externally threaded pipe of lower end band, place the some of pipe to cylinder-shaped sleeve, each all contacts with the inclined-plane cylinder-shaped sleeve, square torque arm, the adjusting nut of brute spring and pipe lower end, to passing in the oblong aperture the cylinder-shaped sleeve, spring places the cylinder-shaped sleeve lower end and regulates between the nut square torque arm from some.
3, multifunctional office family expenses ab lounge according to claim 1 is characterized in that: it also is provided with the mechanism that realizes the chaise longue function, and this mechanism is made up of chair back adjusting device, seat support adjusting device and bascule,
Described chair back adjusting device constitutes like this, between the chair back (30) and chair seat board (29), gyrator (52) is set, the central siphon (12) of chair seat board (29), just "T"-shaped horizontal conduit (11) all are coaxially installed on the locating shaft (15) of chair frame (13) front end, and the angle between the chair back (30) and the chair seat board (29) is regulated by the handle of pulling on the gyrator (52) (51);
Described seat support adjusting device constitutes like this, chair frame (13) is gone up fixed hub guide plate (22), support (18) upper end of band handle is installed on chair seat board (29) bottom by axis (21), axle sleeve (20) is installed on support (18) lower end by minor axis (19), and axle sleeve (20) can slide in the gathering sill of guide plate (22);
Described bascule constitutes like this, the scalable horizontal leg (27) that has universal wheel (28) places in the pipe of chair frame (13) bottom, be provided with extension spring (26) in the horizontal leg (27), extension spring (26) one ends are fixed in the front portion, the end of chair frame (13), one end is fixed on the horizontal leg (27), be connected with two vertical rods (23) that stretch out back (30) lower end, both sides through spill wheel (25) by backguy (24) simultaneously, change angle by back (30), two vertical rods (23) are pulled out horizontal leg (27) interlock simultaneously; In the time of oppositely, the extension spring (26) in (27) is with horizontal leg (27) automatic drawing back.
4, multifunctional office family expenses ab lounge according to claim 3, it is characterized in that: seat support (29) is double-deck, open 180 forward when spending when the upper strata of seat support, be buckled in inverse-T-shaped pipe (5) and become horizontal with seat support upper strata, seat support lower floor and the chair back (30) on the just "T"-shaped pipe (8).
5, multifunctional office family expenses ab lounge according to claim 1, it is characterized in that: the handrail of couch (46) top is provided with the arm strength exerciser, described arm strength exerciser is made up of two interlock " " shape frid (42,43), handle (50), extension spring and pulleys (44), extension spring one end is fixed on the connecting axle (45) of frid up and down, the other end be fixed in after through pulley (44) frid (42) have handle (50) spool on, by rolling up the handle (50) of 180 degree, catching groove plate (42) can open on the handrail.
6, multifunctional office family expenses ab lounge according to claim 1, it is characterized in that: crank type shank electric massage device (53) is equipped with in the bottom of chair seat board (29).
7, multifunctional office family expenses ab lounge according to claim 1, it is characterized in that: chair frame (13) lower floor is provided with flexible guiding trestle groove (59), upward place the rotating disk (57) that sways one's hips at flexible guiding trestle groove (59), be equipped with one under the outside of waist torsional disk (57) and support wheel carrier (58).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00234987 CN2419875Y (en) | 2000-05-25 | 2000-05-25 | Multifunction body building chair for office and home use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00234987 CN2419875Y (en) | 2000-05-25 | 2000-05-25 | Multifunction body building chair for office and home use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2419875Y true CN2419875Y (en) | 2001-02-21 |
Family
ID=33596915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00234987 Expired - Fee Related CN2419875Y (en) | 2000-05-25 | 2000-05-25 | Multifunction body building chair for office and home use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2419875Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272364A (en) * | 2013-06-17 | 2013-09-04 | 宁波市鄞州风名工业产品设计有限公司 | Fitness chair with digital output function |
| CN104815421A (en) * | 2015-04-06 | 2015-08-05 | 李久德 | Electric control exercising machine |
| CN105641876A (en) * | 2016-04-06 | 2016-06-08 | 成都梓楠家具有限公司 | Armrest structure provided with upper limb exercise device |
| CN105797314A (en) * | 2016-04-06 | 2016-07-27 | 成都梓楠家具有限公司 | Sofa armrest for exercising upper limbs |
| CN105833471A (en) * | 2016-04-06 | 2016-08-10 | 成都梓楠家具有限公司 | Fitness armrest |
| CN107252390A (en) * | 2017-05-24 | 2017-10-17 | 广东农工商职业技术学院(农业部华南农垦干部培训中心) | Multifunction health care device |
| CN107661205A (en) * | 2017-11-04 | 2018-02-06 | 杭州同筹网络科技有限公司 | A kind of frame mechanism applied to automatic massage chair and a kind of automatic massage chair |
| CN107661204A (en) * | 2017-11-04 | 2018-02-06 | 杭州同筹网络科技有限公司 | A kind of framework coordinated control system applied to massage armchair and a kind of massage armchair |
| CN107693299A (en) * | 2017-11-04 | 2018-02-16 | 杭州同筹网络科技有限公司 | A kind of automatic massage chair |
| CN107715390A (en) * | 2017-11-15 | 2018-02-23 | 伍超群 | A kind of family expenses are easy to the multi-functional exercising apparatus of regulation |
| CN107854803A (en) * | 2017-11-09 | 2018-03-30 | 周爱云 | A kind of sports arm strength and waist power exercising apparatus |
| CN107854291A (en) * | 2017-11-04 | 2018-03-30 | 杭州同筹网络科技有限公司 | A kind of dependence mechanism applied to automatic massage chair and a kind of massage armchair |
| CN108836780A (en) * | 2018-06-25 | 2018-11-20 | 钱浩 | A kind of multifunctional massage chair |
| CN108937284A (en) * | 2018-10-12 | 2018-12-07 | 南京医科大学第二附属医院 | A kind of waist protecting chair adjusting seat gradient using chair rear leg personalization |
| CN113442839A (en) * | 2021-08-02 | 2021-09-28 | 重庆工业职业技术学院 | Chair with handheld multimedia brace |
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2000
- 2000-05-25 CN CN 00234987 patent/CN2419875Y/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103272364B (en) * | 2013-06-17 | 2015-04-22 | 宁波市鄞州风名工业产品设计有限公司 | Fitness chair with digital output function |
| CN103272364A (en) * | 2013-06-17 | 2013-09-04 | 宁波市鄞州风名工业产品设计有限公司 | Fitness chair with digital output function |
| CN104815421A (en) * | 2015-04-06 | 2015-08-05 | 李久德 | Electric control exercising machine |
| CN105641876A (en) * | 2016-04-06 | 2016-06-08 | 成都梓楠家具有限公司 | Armrest structure provided with upper limb exercise device |
| CN105797314A (en) * | 2016-04-06 | 2016-07-27 | 成都梓楠家具有限公司 | Sofa armrest for exercising upper limbs |
| CN105833471A (en) * | 2016-04-06 | 2016-08-10 | 成都梓楠家具有限公司 | Fitness armrest |
| CN107252390A (en) * | 2017-05-24 | 2017-10-17 | 广东农工商职业技术学院(农业部华南农垦干部培训中心) | Multifunction health care device |
| CN107252390B (en) * | 2017-05-24 | 2019-10-25 | 广东农工商职业技术学院(农业部华南农垦干部培训中心) | Multifunction health care device |
| CN107854291A (en) * | 2017-11-04 | 2018-03-30 | 杭州同筹网络科技有限公司 | A kind of dependence mechanism applied to automatic massage chair and a kind of massage armchair |
| CN107661205A (en) * | 2017-11-04 | 2018-02-06 | 杭州同筹网络科技有限公司 | A kind of frame mechanism applied to automatic massage chair and a kind of automatic massage chair |
| CN107661204A (en) * | 2017-11-04 | 2018-02-06 | 杭州同筹网络科技有限公司 | A kind of framework coordinated control system applied to massage armchair and a kind of massage armchair |
| CN107693299A (en) * | 2017-11-04 | 2018-02-16 | 杭州同筹网络科技有限公司 | A kind of automatic massage chair |
| CN107854803B (en) * | 2017-11-09 | 2019-08-27 | 林星星 | A kind of sports arm strength and waist power exercising apparatus |
| CN107854803A (en) * | 2017-11-09 | 2018-03-30 | 周爱云 | A kind of sports arm strength and waist power exercising apparatus |
| CN107715390A (en) * | 2017-11-15 | 2018-02-23 | 伍超群 | A kind of family expenses are easy to the multi-functional exercising apparatus of regulation |
| CN108836780A (en) * | 2018-06-25 | 2018-11-20 | 钱浩 | A kind of multifunctional massage chair |
| CN108937284A (en) * | 2018-10-12 | 2018-12-07 | 南京医科大学第二附属医院 | A kind of waist protecting chair adjusting seat gradient using chair rear leg personalization |
| CN108937284B (en) * | 2018-10-12 | 2022-05-24 | 南京医科大学第二附属医院 | Waist support chair with chair back legs for individually adjusting gradient of chair surface |
| CN113442839A (en) * | 2021-08-02 | 2021-09-28 | 重庆工业职业技术学院 | Chair with handheld multimedia brace |
| CN113442839B (en) * | 2021-08-02 | 2022-07-15 | 重庆工业职业技术学院 | Chair with handheld multimedia brace |
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