CN215304305U - Lengthened chair for old people - Google Patents
Lengthened chair for old people Download PDFInfo
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- CN215304305U CN215304305U CN202120684653.1U CN202120684653U CN215304305U CN 215304305 U CN215304305 U CN 215304305U CN 202120684653 U CN202120684653 U CN 202120684653U CN 215304305 U CN215304305 U CN 215304305U
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- footrest
- limiting groove
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000003466 welding Methods 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 20
- 230000008602 contraction Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of furniture, in particular to a lengthened geriatric chair, wherein a first driving motor is arranged between a welding base and a front driving rod, both ends of the front driving rod are riveted with eighth connecting rod pieces, the lower ends of the eighth connecting rod pieces are riveted with the front ends of ninth connecting rod pieces, the rear ends of the ninth connecting rod pieces are riveted with the rear ends of tenth connecting rod pieces, the front ends of the tenth connecting rod pieces are riveted with a footrest extension linkage member, the rear ends of the tenth connecting rod pieces are riveted with the lower ends of eleventh connecting rod pieces, the upper ends of the eleventh connecting rod pieces are riveted with the rear ends of the twelfth connecting rod pieces, the front ends of the twelfth connecting rod pieces are riveted with a footrest extension linkage member, the rear ends of the twelfth connecting rod pieces are also riveted with a backrest for driving the footrest extension linkage member and the backrest to extend or retract simultaneously, the length of an iron rest of the geriatric chair after the footrest extension linkage member is mm, and the geriatric chair is integrally lengthened 1170, the multifunctional shoe pad is stronger in functionality, more comfortable to use, stable in structure, low in cost and more comprehensive in market development.
Description
Technical Field
The utility model relates to the technical field of furniture, in particular to a lengthened chair for the aged.
Background
With the improvement of domestic productivity level and the development of social and economic level, the living standard of people is higher and higher, and the requirement on furniture is also higher and higher. The footrest extension linkage component is a core mechanical part of the multifunctional sofa on the backrest, and drives the footrest to be opened and closed through the integral movement of the iron frame. However, the existing sofa with the grounded bracket has the following defects: after the existing sofa with the grounded bracket is stretched, the leg supporting structure is not long enough and the comfort level is not high.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the lengthened old people chair is lengthened integrally and is lengthened by 100mm, more comfortable to use and stable in structure.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a lengthening type old people chair comprises a welding base, wherein an iron frame of the old people chair is installed on the welding base, the iron frame of the old people chair comprises a front driving rod, a first driving motor is installed between the welding base and the front driving rod, both ends of the front driving rod are riveted with eighth connecting rod pieces to drive the eighth connecting rod pieces to move, the lower ends of the eighth connecting rod pieces are riveted with the front ends of ninth connecting rod pieces, the rear ends of the ninth connecting rod pieces are riveted with the rear ends of tenth connecting rod pieces, the front ends of the tenth connecting rod pieces are riveted with a footrest extension linkage member, the rear ends of the tenth connecting rod pieces are riveted with the lower ends of eleventh connecting rod pieces, the upper ends of the eleventh connecting rod pieces are riveted with the rear ends of twelfth connecting rod pieces, the front ends of the twelfth connecting rod pieces are riveted with a footrest extension linkage member, the rear ends of the twelfth connecting rod pieces are also riveted with a backrest for simultaneously driving the footrest extension linkage member and the backrest to extend or retract simultaneously, the length of the iron frame of the old chair and the extended length of the foot rest telescopic linkage component are 1070 mm-1270 mm.
Furthermore, the length of the iron frame of the old people chair and the extended length of the foot rest telescopic linkage component are 1170 mm.
Furthermore, a lifting mechanism for lifting the height of the whole old people chair is also arranged on the welding base, the lifting mechanism comprises a welding seat plate, a thirteenth connecting rod piece and a fourteenth connecting rod piece which are arranged on the welding base, the thirteenth connecting rod piece is installed through the first axle to the lower extreme of welding bedplate, the fourteenth connecting rod piece is installed through the second axle to the upper end of welding base, the upper end of thirteenth connecting rod piece and fourteenth connecting rod piece is all riveted at the front end of fifteenth connecting rod piece, the rear end of fifteenth connecting rod piece is riveted with the middle section of sixteenth connecting rod piece, the front end of sixteenth connecting rod piece is riveted with the upper end of seventeenth connecting rod piece, the rear end of sixteenth connecting rod piece is riveted with the middle section of eighteenth connecting rod piece, the upper end of eighteenth connecting rod piece is riveted with the rear end of twelfth connecting rod piece, the lower extreme of eighteenth connecting rod piece is riveted with the rear end of tenth connecting rod piece, the lower extreme of seventeenth connecting rod piece is riveted with the front end of twelfth connecting rod piece.
Furthermore, the footrest extension linkage member comprises a first extension linkage member and a second extension linkage member, each extension linkage member comprises a sixth connecting rod piece and a seventh connecting rod piece, the sixth connecting rod piece and the seventh connecting rod piece are respectively connected with the front part of the sofa frame body, and the front ends of the sixth connecting rod piece and the seventh connecting rod piece are provided with a first connecting rod mechanism and a second connecting rod mechanism for simultaneously driving the large footrest and the small footrest to extend or contract.
Further, the iron frame of the old man chair further comprises a rear driving rod, a second driving motor is installed between the welding base and the rear driving rod, nineteenth connecting rod pieces are installed at two ends of the rear driving rod, and the upper end of each nineteenth connecting rod piece is riveted with the backrest and used for adjusting the inclination angle of the backrest.
Furthermore, a waist-shaped limiting groove is formed in the fifteenth connecting rod piece, the fifteenth connecting rod piece is connected with the eighth connecting rod piece through a pin shaft penetrating through the limiting groove and moves in the limiting groove through the pin shaft, a rotating shaft is further arranged on one side of the limiting groove, and the first driving motor drives the eighth connecting rod piece to rotate around the rotating shaft.
Further, first link mechanism includes seventh connecting rod spare, third connecting rod spare, big footrest and fifth connecting rod spare, the front end of seventh connecting rod spare and the rear end riveting of third connecting rod spare, the front end of third connecting rod spare and the middle section riveting of big footrest, the front end of fifth connecting rod spare and the rear end riveting of big footrest, the rear end of fifth connecting rod spare and the front end riveting of sixth connecting rod spare, the riveting between seventh connecting rod spare and the fifth connecting rod spare.
Further, the second link mechanism comprises a first link member, a second link member, a large footrest and a small footrest, wherein the front end of the first link member is riveted with the middle section of the small footrest, the rear end of the first link member is riveted with the front end of the large footrest, the rear end of the small footrest is riveted with the front end of the second link member, and the middle section of the second link member is riveted with the middle section of the large footrest.
Furthermore, the first connecting rod mechanism is also provided with a first limiting component for limiting and positioning the big footrest, the first limiting component comprises a first limiting part, a first limiting groove and a second limiting groove, the first limiting part is arranged at the front end of the seventh connecting rod part, the first limiting groove and the second limiting groove are respectively arranged on two upper end surfaces at the rear end of the fifth connecting rod part, the cross sections of the two upper end surfaces are ﹀ -shaped,
when the first limiting piece is in an extending state, the first limiting piece is embedded in the first limiting groove;
when the first limiting piece is in a contraction state, the first limiting piece is embedded in the second limiting groove.
Furthermore, a second limiting component is arranged on the second connecting rod mechanism and used for limiting and positioning the small footrest, the second limiting component comprises a second limiting part, a third limiting groove and a fourth limiting groove, the second limiting part is arranged at the middle position of the first connecting rod part, the third limiting groove and the fourth limiting groove are arranged on the lower end surface of the small footrest, the third limiting groove is positioned at the front end of the fourth limiting groove,
when the second limiting piece is in an extending state, the second limiting piece is embedded in the fourth limiting groove;
when the second limiting piece is in a contraction state, the second limiting piece is embedded in the third limiting groove.
The utility model has the beneficial effects that: the chair is simple in structure and strong in functionality, the old people chair is integrally lengthened by 100mm, the use is more comfortable, the structure is stable, the cost is low, and the market development is more comprehensive.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view in another aspect of the present invention;
FIG. 3 is a schematic view of the present invention with the tenth connecting rod removed;
FIG. 4 is a schematic view of the seated configuration of the present invention;
FIG. 5 is a schematic diagram of the structure of the TV pose of the present invention;
FIG. 6 is a schematic structural view of the lift position of the present invention;
FIG. 7 is a view of the sofa frame in an extended position in which the utility model is installed;
fig. 8 is a view showing a use state of the present invention in a contracted state mounted on a sofa frame body.
In the figure: 1. a first link, 2, a second link, 3, a third link, 4, a fourth link, 5, a fifth link, 6, a sixth link, 7, a seventh link, 8, a small footrest, 9, a large footrest, 10, a first limiting member, 11, a second limiting member, 12, a first limiting groove, 13, a second limiting groove, 14, a third limiting groove, 15, a fourth limiting groove, 16, a projection, 17, a welding base, 18, a front driving lever, 19, a first driving motor, 20, an eighth link, 21, a ninth link, 22, a tenth link, 23, an eleventh link, 24, a twelfth link, 25, a backrest, 26, a rear driving lever, 27, a second driving motor, 28, a welding seat, 29, a thirteenth link, 30, a fourteenth link, 31, a fifteenth link, 32, a sixteenth link, 33, and a seventeenth link, 34. eighteenth connecting rod piece, 35, limiting groove, 36, rotating shaft, 37, second shaft, 38, pin shaft, 39, nineteenth connecting rod piece and 40, first shaft.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1 to 8, an elongated geriatric chair comprises a welding base 17, an iron frame of the geriatric chair is mounted on the welding base 17, the iron frame of the geriatric chair comprises a front driving rod 18, a first driving motor 19 is mounted between the welding base 17 and the front driving rod 18, an eighth link 20 is riveted to both ends of the front driving rod 18 to drive the eighth link 20 to move, a lower end of the eighth link 20 is riveted to a front end of a ninth link 21, a rear end of the ninth link 21 is riveted to a rear end of a tenth link 22, a front end of the tenth link 22 is riveted with a footrest extension linkage member, a rear end of the tenth link 22 is riveted to a lower end of an eleventh link 23, an upper end of the eleventh link 23 is riveted to a rear end of a twelfth link 24, a front end of the twelfth link 24 is riveted to a footrest extension linkage member, a rear end of the twelfth link 24 is riveted to a backrest 25, the length of the extended iron frame of the old people chair and the extended linkage member of the footrest is 1070 mm-1270 mm, preferably, the length of the extended iron frame of the old people chair and the extended linkage member of the footrest is 1170 mm.
The welding base 17 is also provided with a lifting mechanism for lifting the height of the whole old people chair, the lifting mechanism comprises a welding base plate 28, a thirteenth connecting rod piece 29 and a fourteenth connecting rod piece 30 which are arranged on the welding base 17, the lower end of the welding base plate 28 is provided with the thirteenth connecting rod piece 29 through a first shaft 40, the upper end of the welding base 17 is provided with the fourteenth connecting rod piece 30 through a second shaft 37, the upper ends of the thirteenth connecting rod piece 29 and the fourteenth connecting rod piece 30 are riveted at the front end of a fifteenth connecting rod piece 31, the rear end of the fifteenth connecting rod piece 31 is riveted with the middle section of a sixteenth connecting rod piece 32, the front end of the sixteenth connecting rod piece 32 is riveted with the upper end of a seventeenth connecting rod piece 33, the rear end of the sixteenth connecting rod piece 32 is riveted with the middle section of an eighteenth connecting rod piece 34, the upper end of the eighteenth connecting rod piece 34 is riveted with the rear end of a twelfth connecting rod piece 24, the lower end of the eighteenth connecting rod piece 34 is riveted with the rear end of the tenth connecting rod piece 22, the lower end of the seventeenth link 33 is riveted with the front end of the twelfth link 24, wherein the fifteenth link 31 is provided with a waist-shaped limiting groove 35, the fifteenth link 31 is connected with the eighth link 20 through a pin 38 passing through the limiting groove 35 and moves in the limiting groove 35 through the pin 38, a rotating shaft 36 is further arranged on one side of the limiting groove 35, and the first driving motor 19 drives the eighth link 20 to rotate around the rotating shaft 36.
Old man's chair iron stand still includes back actuating lever 26, install second driving motor 27 between welding base 17 and the back actuating lever 26, nineteenth connecting rod spare 39 is installed at the both ends of back actuating lever 26, and the upper end of nineteenth connecting rod spare 39 is riveted with back 25 for adjust the inclination of back 25.
The telescopic linkage member of the footrest comprises a first telescopic linkage member and a second telescopic linkage member, each telescopic linkage member comprises a sixth connecting rod piece 6 and a seventh connecting rod piece 7, the sixth connecting rod piece 6 and the seventh connecting rod piece 7 are respectively connected with the front part of the sofa frame body, and the front ends of the sixth connecting rod piece 6 and the seventh connecting rod piece 7 are provided with a first connecting rod mechanism and a second connecting rod mechanism for driving the large footrest 9 and the small footrest 8 to extend or contract simultaneously.
The first connecting rod mechanism comprises a seventh connecting rod piece 7, a third connecting rod piece 3, a large footrest 9 and a fifth connecting rod piece 5, the front end of the seventh connecting rod piece 7 is riveted with the rear end of the third connecting rod piece 3, the front end of the third connecting rod piece 3 is riveted with the middle section of the large footrest 9, the front end of the fifth connecting rod piece 5 is riveted with the rear end of the large footrest 9, the rear end of the fifth connecting rod piece 5 is riveted with the front end of the sixth connecting rod piece 6, and the seventh connecting rod piece 7 is riveted with the fifth connecting rod piece 5.
The second link mechanism comprises a first link member 1, a second link member 2, a large footrest 9 and a small footrest 8, wherein the front end of the first link member 1 is riveted with the middle section of the small footrest 8, the rear end of the first link member 1 is riveted with the front end of the large footrest 9, the rear end of the small footrest 8 is riveted with the front end of the second link member 2, and the middle section of the second link member 2 is riveted with the middle section of the large footrest 9.
The first connecting rod mechanism is also provided with a first limiting component for limiting and positioning the big footrest 9, the first limiting component comprises a first limiting part 10, a first limiting groove 12 and a second limiting groove 13, the first limiting part 10 is arranged at the front end of the seventh connecting rod part 7, the first limiting groove 12 and the second limiting groove 13 are respectively arranged on two upper end surfaces at the rear end of the fifth connecting rod part 5, the cross sections of the two upper end surfaces are ﹀ -shaped, and when the first limiting part 10 is in an extending state, the first limiting part 10 is embedded in the first limiting groove 12; when in the retracted state, the first position-limiting member 10 is embedded in the second position-limiting groove 13.
The second link mechanism is provided with a second limiting component for limiting and positioning the small footrest 8, the second limiting component comprises a second limiting part 11, a third limiting groove 14 and a fourth limiting groove 15, the second limiting part 11 is arranged at the middle position of the first link member 1, the third limiting groove 14 and the fourth limiting groove 15 are arranged on the lower end surface of the small footrest 8, the third limiting groove 14 is positioned at the front end of the fourth limiting groove 15, and when the second link mechanism is in an extending state, the second limiting part 11 is embedded in the fourth limiting groove 15; when in the retracted state, the second limiting member 11 is embedded in the third limiting groove 14.
The fifth link member 5, the ninth link member 21, the tenth link member 22 and the twelfth link member 24 each have a protrusion 16 on the face thereof to prevent stress concentration.
In particular, the geriatric chair shown in fig. 1 and 4 is in a normal state, i.e., a sitting posture.
In the chair for old people as shown in fig. 5, in the posture of TV, the push rod of the first driving motor 19 drives the eighth link 20, the eighth link 20 drives the ninth link 21, the ninth link 21 drives the tenth link 22, and the tenth link 22 drives the sixth link 6, so that the whole footrest extension and contraction linkage member is unfolded;
the tenth link 22 also drives the eleventh link 23, the eleventh link 23 drives the twelfth link 24, the twelfth link 24 follows up when the footrest extension linkage member is opened, the twelfth link 24 is generally provided with a cushion of a sofa, and the cushion follows up to adjust the angle when the footrest extension linkage member is opened;
at the moment, the length of the whole old people chair after being stretched is 1170mm, which is 100mm longer than the original length, so that the old people chair is practical and more comfortable, but the lifting function can not be realized when the footrest telescopic linkage component is in the unfolded state, so that a user is prevented from falling off the old people chair, and the safety performance is improved;
moreover, the angle of the backrest 25 drives the rear driving rod 26 through the second driving motor 27, the rear driving rod 26 drives the nineteenth link member 39 to control the inclination of the backrest 25, the inclination angle of the backrest 25 can be adjusted within the range of 0 to 57 degrees, and the inclination angle of the backrest 25 in fig. 5 is 0 degrees.
As shown in fig. 6, the geriatric chair is in a lifting state, the iron frame of the geriatric chair and the telescopic linkage member of the footrest are completely folded, at this time, the first driving motor 19 is in the middle position, the first driving motor 19 is recovered, the telescopic linkage member of the footrest is lifted, the push rod of the first driving motor 19 is extended, and the whole iron frame of the geriatric chair is lifted around 4 shafts (the 4 shafts refer to the rotating shaft 36, the first shaft 40, the second shaft 37 and the pin shaft 38), so that the height of the iron frame of the geriatric chair is lifted.
When the elongated footrest shown in fig. 7-8 is in an extended state, the seventh link 7 and the sixth link 6 drive the first link mechanism to perform a stable link motion (i.e., an extended opening motion), and the first link mechanism further drives the second link mechanism to perform a stable link motion, and meanwhile, the first limiting member 10 is clamped in the first limiting groove 12, and the second limiting member 11 is clamped in the fourth limiting groove 15, so that the large footrest 9 and the small footrest 8 are stably extended and opened.
When the lengthened footrest shown in fig. 1 is in a retracted state, the seventh link 7 and the sixth link 6 drive the first link mechanism to perform a stable link motion (i.e. a retracted closed motion), and the first link mechanism pulls the second link mechanism to perform a stable link motion, so that the telescopic linkage member is retracted integrally, at this time, the first limiting part 10 is clamped in the second limiting groove 13, and the second limiting part 11 is clamped in the third limiting groove 14, so that the large footrest 9 and the small footrest 8 are retracted and closed stably.
While particular embodiments of the present invention have been described in the foregoing specification, the present invention is not limited to the specific embodiments, and modifications and variations of the foregoing detailed description can be made by those skilled in the art without departing from the spirit and scope of the utility model.
Claims (10)
1. The utility model provides an elongated geriatric chair, includes welding base (17), installs geriatric chair iron stand on welding base (17), and this geriatric chair iron stand includes front driving rod (18), installs first driving motor (19), its characterized in that between welding base (17) and front driving rod (18): the two ends of the front driving rod (18) are riveted with eighth connecting rod pieces (20) to drive the eighth connecting rod pieces (20) to move, the lower end of the eighth connecting rod piece (20) is riveted with the front end of a ninth connecting rod piece (21), the rear end of the ninth connecting rod piece (21) is riveted with the rear end of a tenth connecting rod piece (22), the front end of the tenth connecting rod piece (22) is riveted with a footrest extension linkage member, the rear end of the tenth connecting rod piece (22) is riveted with the lower end of an eleventh connecting rod piece (23), the upper end of the eleventh connecting rod piece (23) is riveted with the rear end of a twelfth connecting rod piece (24), the front end of the twelfth connecting rod piece (24) is riveted with the footrest extension linkage member, the rear end of the twelfth connecting rod piece (24) is also riveted with a backrest (25), the chair is used for simultaneously driving the footrest extension linkage member and the backrest (25) to simultaneously extend or retract, and the length of the iron frame of the old chair and the footrest extension linkage member after extension is 1070 mm-1270 mm.
2. An elongated geriatric chair as claimed in claim 1, wherein: the length of the iron frame of the old people chair and the extended length of the foot rest telescopic linkage component are 1170 mm.
3. An elongated geriatric chair as claimed in claim 1, wherein: the lifting mechanism for lifting the height of the whole old man chair is further installed on the welding base (17), the lifting mechanism comprises a welding seat plate (28), a thirteenth connecting rod piece (29) and a fourteenth connecting rod piece (30) which are installed on the welding base (17), the thirteenth connecting rod piece (29) is installed at the lower end of the welding seat plate (28) through a first shaft (40), the fourteenth connecting rod piece (30) is installed at the upper end of the welding base (17) through a second shaft (37), the upper ends of the thirteenth connecting rod piece (29) and the fourteenth connecting rod piece (30) are riveted at the front end of a fifteenth connecting rod piece (31), the rear end of the fifteenth connecting rod piece (31) is riveted with the middle section of a sixteenth connecting rod piece (32), the front end of the sixteenth connecting rod piece (32) is riveted with the upper end of a seventeenth connecting rod piece (33), and the rear end of the sixteenth connecting rod piece (32) is riveted with the middle section of an eighteenth connecting rod piece (34), the upper end of the eighteenth connecting rod piece (34) is riveted with the rear end of the twelfth connecting rod piece (24), the lower end of the eighteenth connecting rod piece (34) is riveted with the rear end of the tenth connecting rod piece (22), and the lower end of the seventeenth connecting rod piece (33) is riveted with the front end of the twelfth connecting rod piece (24).
4. An elongated geriatric chair as claimed in claim 1, wherein: the telescopic linkage member of the footrest comprises a first telescopic linkage member and a second telescopic linkage member, each telescopic linkage member comprises a sixth connecting rod piece (6) and a seventh connecting rod piece (7), the sixth connecting rod piece (6) and the seventh connecting rod piece (7) are respectively connected with the front part of the sofa frame body, and the front ends of the sixth connecting rod piece (6) and the seventh connecting rod piece (7) are provided with a first connecting rod mechanism and a second connecting rod mechanism for simultaneously driving the large footrest (9) and the small footrest (8) to extend or contract.
5. An elongated geriatric chair as claimed in claim 1, wherein: old man chair iron stand still include back actuating lever (26), install second driving motor (27) between welding base (17) and back actuating lever (26), nineteenth connecting rod spare (39) are installed at the both ends of back actuating lever (26), the upper end and the back (25) riveting of nineteenth connecting rod spare (39) for adjust the inclination of back (25).
6. An elongated geriatric chair as claimed in claim 3, wherein: the fifteenth connecting rod piece (31) is provided with a waist-shaped limiting groove (35), the fifteenth connecting rod piece (31) is connected with the eighth connecting rod piece (20) through a pin shaft (38) penetrating through the limiting groove (35) and moves in the limiting groove (35) through the pin shaft (38), a rotating shaft (36) is further arranged on one side of the limiting groove (35), and the first driving motor (19) drives the eighth connecting rod piece (20) to rotate around the rotating shaft (36).
7. An elongated geriatric chair as claimed in claim 4, wherein: first link mechanism include seventh connecting rod spare (7), third connecting rod spare (3), big footrest (9) and fifth connecting rod spare (5), the front end of seventh connecting rod spare (7) and the rear end riveting of third connecting rod spare (3), the front end of third connecting rod spare (3) and the middle section riveting of big footrest (9), the front end of fifth connecting rod spare (5) and the rear end riveting of big footrest (9), the rear end of fifth connecting rod spare (5) and the front end riveting of sixth connecting rod spare (6), rivet between seventh connecting rod spare (7) and fifth connecting rod spare (5).
8. An elongated geriatric chair as claimed in claim 4, wherein: the second link mechanism comprises a first link member (1), a second link member (2), a large footrest (9) and a small footrest (8), wherein the front end of the first link member (1) is riveted with the middle section of the small footrest (8), the rear end of the first link member (1) is riveted with the front end of the large footrest (9), the rear end of the small footrest (8) is riveted with the front end of the second link member (2), and the middle section of the second link member (2) is riveted with the middle section of the large footrest (9).
9. An elongated geriatric chair as claimed in claim 7, wherein: the first connecting rod mechanism is also provided with a first limiting component for limiting and positioning the big footrest (9), the first limiting component comprises a first limiting part (10), a first limiting groove (12) and a second limiting groove (13), the first limiting part (10) is arranged at the front end of the seventh connecting rod piece (7), the first limiting groove (12) and the second limiting groove (13) are respectively arranged on two upper end surfaces at the rear end of the fifth connecting rod piece (5), the cross-sectional shapes of the two upper end surfaces are ﹀ type,
when the device is in an extending state, the first limiting piece (10) is embedded in the first limiting groove (12);
when the device is in a contraction state, the first limiting piece (10) is embedded in the second limiting groove (13).
10. An elongated geriatric chair as claimed in claim 7, wherein: the second connecting rod mechanism is provided with a second limiting component for limiting and positioning the small footrest (8), the second limiting component comprises a second limiting part (11), a third limiting groove (14) and a fourth limiting groove (15), the second limiting part (11) is arranged at the middle position of the first connecting rod piece (1), the third limiting groove (14) and the fourth limiting groove (15) are arranged on the lower end surface of the small footrest (8), the third limiting groove (14) is positioned at the front end of the fourth limiting groove (15),
when the device is in an extending state, the second limiting piece (11) is embedded in the fourth limiting groove (15);
when the telescopic type barrel is in a telescopic type telescopic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120684653.1U CN215304305U (en) | 2021-04-02 | 2021-04-02 | Lengthened chair for old people |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120684653.1U CN215304305U (en) | 2021-04-02 | 2021-04-02 | Lengthened chair for old people |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215304305U true CN215304305U (en) | 2021-12-28 |
Family
ID=79592553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120684653.1U Active CN215304305U (en) | 2021-04-02 | 2021-04-02 | Lengthened chair for old people |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215304305U (en) |
-
2021
- 2021-04-02 CN CN202120684653.1U patent/CN215304305U/en active Active
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Address after: 213000, No. 26 Changhong East Road, Henglin Town, Changzhou Economic Development Zone, Jiangsu Province Patentee after: Changzhou Kairong Machinery Technology Co.,Ltd. Country or region after: China Address before: 214444 No. 88, VIP Road, Ligang street, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: Jiangyin Kaiyan Metal Manufacturing Co.,Ltd. Country or region before: China |