CN215604349U

CN215604349U - Movable lifting chair

Info

Publication number: CN215604349U
Application number: CN202022273273.7U
Authority: CN
Inventors: 金嘉桥; 丁长涛; 王�锋; 程义正; 陈腾; 王佳杰; 周楠; 王佳怡; 朱钇安; 丁泽杰
Original assignee: Zhejiang Industry Polytechnic College
Current assignee: Zhejiang Industry Polytechnic College
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2022-01-25
Anticipated expiration: 2030-10-14

Abstract

The utility model belongs to the field of practical furniture, and particularly relates to a movable lifting chair which comprises a chassis, wherein the chassis is provided with a steering device, a driving device and a lifting device; the steering device comprises a toothed rotating wheel, double-tooth transmission shafts and a main transmission shaft part, wherein each toothed rotating wheel is meshed with one end of one double-tooth transmission shaft; the main transmission shaft part comprises a regulating fork and a main transmission shaft, a regulating block is arranged on a regulating fork sliding groove on the inner side of the regulating fork, the regulating block is rotationally connected with the main transmission shaft, and the main transmission shaft is provided with a main transmission shaft gear; the driving shaft bracket in the driving device is rotationally connected with the driving shaft; the lifting device comprises a lifting rod base and a transmission gear support, wherein two ends of a double-threaded rod of the lifting rod base are respectively in threaded connection with a left slider and a right slider, the left slider is hinged to a first lifting rod, the first lifting rod is hinged to a horizontal lifting rod, the horizontal lifting rod is hinged to a second lifting rod, the second lifting rod is hinged to the right slider, and the horizontal lifting rod is fixedly connected with the bottom surface of the seat.

Description

Movable lifting chair

Technical Field

The utility model belongs to the field of practical furniture, and particularly relates to a movable lifting chair.

Background

In modern society, a large number of patients and the elderly lose mobility for various reasons. In the face of such people, the primary onset of voluntary dyskinesia should be treated, along with rehabilitation therapy. In the daily life of the crowd with the lower limbs inconvenient, the walking and the moving do not become easy any more, but the crowd takes a lot of time and energy to deal with every day, and in order to provide an auxiliary device which is convenient for indoor moving and showering for the crowd with the lower limbs inconvenient, the utility model hopes to provide a movable lifting chair.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a movable lift chair to solve the above problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

a movable lifting chair comprises a rocker, a seat and a chassis, wherein a steering device is arranged on the bottom surface of the chassis and comprises two toothed rotating wheels, two double-tooth transmission shafts and a main transmission shaft part, the rotating centers of the two toothed rotating wheels are positioned on the same axis, the two toothed rotating wheels are arranged in opposite directions, each toothed rotating wheel is meshed with one end, meshed with one double-tooth transmission shaft, and the two double-tooth transmission shafts are arranged in parallel; the main transmission shaft component comprises a regulating fork and a main transmission shaft, the regulating fork is rotationally connected with the main transmission shaft, a regulating fork chute is arranged on the inner side of the regulating fork, a regulating block is arranged in the regulating fork chute, the main transmission shaft is further rotationally connected with the regulating block, main transmission shaft gears are arranged at two ends of the main transmission shaft, one of the main transmission shaft gears is positioned between the two double-tooth transmission shafts, and a steering rocker groove is also formed in the regulating block; the bottom surface of the chassis is provided with a driving device, the driving device comprises a driving wheel and a driving shaft bracket, the driving wheel is fixedly connected with a driving shaft, one end of the driving shaft is provided with a driving shaft gear, the driving shaft is further rotatably connected with the driving shaft bracket, and the driving shaft bracket is also provided with a driving rocker groove; the top surface of the chassis is provided with a lifting device, the lifting device comprises two lifting rod bases and a transmission gear support, the transmission gear support is provided with a gear set and a lifting rocker groove, the lifting rod bases are provided with double threaded rods, one end of each double threaded rod is provided with a lifting gear, the lifting gear is meshed with the transmission gear, each double threaded rod comprises a left threaded section and a right threaded section, the thread directions of the left threaded section and the right threaded section are opposite, the left threaded section is provided with a left sliding block, the right threaded section is provided with a right sliding block, the left sliding block is hinged with a first lifting rod, the first lifting rod is hinged with a horizontal lifting rod, the horizontal lifting rod is hinged with a second lifting rod, the second lifting rod is further hinged with the right sliding block, and the first lifting rod and the second lifting rod are completely identical, the horizontally arranged lifting rod is fixedly connected with the bottom surface of the seat; and a rocker gear is arranged on the rocker.

The chassis is provided with a chassis rail, the chassis rail is provided with a rocker box, the top of the rocker box is provided with a T-shaped rocker track, the T-shaped rocker track is positioned right above a connecting line of a steering rocker groove, a lifting rocker groove and a driving rocker groove, and the steering rocker groove is coaxial with a T-shaped intersection.

The rocker is provided with a cylindrical protrusion which corresponds to the cylindrical protrusion, the T-shaped rocker track is provided with two circular notches, one circular notch is coaxial with the lifting rocker groove, and the other circular notch is coaxial with the driving rocker groove.

And the left slider and the right slider are both provided with a low limiting block and a high limiting block.

And a smooth section is arranged between the right-hand thread section and the left-hand thread section of the double-threaded rod.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the existence of the chassis fence not only makes the device more beautiful, but also is more beneficial to protecting each part in the chassis and preventing foreign matters from entering to cause the occurrence of the situations of latch and the like;

(2) the T-shaped rocker track provides a fulcrum for the rocker in the rotation process, so that the rotation process efficiency of the rocker after being stressed is higher;

(3) the cylindrical protrusion on the rocker is matched with the circular notch, so that the rocker cannot slide along the T-shaped rocker track, and the rotation efficiency of the rocker after being stressed is improved;

(4) when the left slider and the right slider are respectively arranged at two ends, the first lifting rod and the second lifting rod are both abutted against the low-position limiting block to prevent the horizontal lifting rod from further descending; when the left-hand slider and the right-hand slider reach the limit to the central position set of the double-thread rod, the first lifting rod and the second lifting rod are abutted against the high-position limiting block to prevent the horizontal lifting rod from further lifting;

(5) a smooth section is arranged between the right-hand thread section and the left-hand thread section of the double-threaded rod, so that the horizontal lifting rod can be effectively limited from further rising.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the device of FIG. 1;

FIG. 3 is a first schematic view of a chassis-rocker assembly of the apparatus of FIG. 1;

FIG. 4 is a second schematic view of a chassis-rocker assembly of the apparatus of FIG. 1;

FIG. 5 is a bottom view of the base plate of the device of FIG. 1;

FIG. 6 is a schematic illustration of the construction of the main drive shaft component of the device of FIG. 1;

FIG. 7 is a schematic diagram of the structure of the rocker in the device of FIG. 1;

description of reference numerals: 1. a rocker; 2. a seat; 3. a chassis; 4. a rotating wheel with teeth; 5. a double-tooth transmission shaft; 6. an adjusting fork; 7. a main drive shaft; 8. a regulating fork chute; 9. an adjusting block; 10. a main drive shaft gear; 11. a steering rocker groove; 12. a drive wheel; 13. a drive shaft support; 14. a drive shaft; 15. a drive shaft gear; 16. driving a rocker groove; 17. a lifter base; 19. A gear set; 20. a lifting rocker groove; 22. a lifting gear; 23. a left-hand threaded segment; 24. a right-hand thread segment; 25. a left slider; 26. a right slider; 27. a first lifting rod; 28. horizontally placing a lifting rod; 29. a second lifting rod; 30. a rocker gear; 31. a chassis fence; 32. a rocker box; 33. a T-shaped rocker rail; 34. a cylindrical protrusion; 35. a circular notch; 36. A low-order limit block; 37. a high-order limit block; 38. and (7) a smooth section.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a movable lifting chair, in this embodiment, the terms of directions such as "left" and "right" are determined based on the left and right judgment of the user sitting on the device:

a movable lifting chair comprises a rocker 1, a seat 2 and a chassis 3. A steering device is arranged on the bottom surface of the chassis 3, and comprises two toothed rotating wheels 4, two double-tooth transmission shafts 5 and a main transmission shaft part. The rotation centers of the two toothed rotating wheels 4 are positioned on the same axis, and the two toothed rotating wheels 4 are arranged in an object manner to form a front right wheel and a front left wheel. Each toothed rotating wheel 4 is meshed with one end of one double-tooth transmission shaft 5, and the rotation of the double-tooth transmission shaft 5 can drive the toothed rotating wheel 4 to rotate. The main transmission shaft part comprises a regulating fork 6 and a main transmission shaft 7, the main transmission shaft 7 penetrates through the regulating fork 6 and is rotatably connected with the regulating fork 6, a regulating fork sliding groove 8 is formed in the inner side of the regulating fork 6, a regulating block 9 is arranged on the regulating fork sliding groove 8, and the main transmission shaft 7 further penetrates through the regulating block 9 and is rotatably connected with the regulating block 9. And the final drive shaft gear 10 of final drive shaft 7 is located inside regulating block 9, and along with regulating block 9 slides from side to side in adjusting fork spout 8, regulating block 9 can carry out the side to side motion along its axial. Two double-tooth transmission shafts 5 respectively meshed with the two toothed rotating gears 4 are arranged in parallel, a gear at one end of the main transmission shaft 7 is positioned in the middle of the two double-tooth transmission shafts 4, and the gear can be meshed with the left front wheel or the right front wheel along with the left-right movement of the main transmission shaft 7. In order to facilitate the rotation of the main transmission shaft 7, a steering rocker groove 11 is arranged on the adjusting block 9, a rocker 1 is arranged in the steering rocker groove 11, a rocker gear 30 is arranged on the rocker 1, the rocker gear 30 is meshed with the main transmission shaft 7, and the main transmission shaft 7 can be driven to rotate by rocking the rocker 1. When the adjusting block 9 is pried by the rocker 1, the adjusting block moves rightwards until the main transmission shaft 7 is meshed with the right double-tooth transmission shaft 5, the main transmission shaft 7 is driven to rotate after the rocker 1 is rotated, and finally the front right wheel is driven to rotate, so that the device turns leftwards and forwards. In a similar way, the adjusting block 9 is moved leftwards until the main transmission shaft 7 is meshed with the left double-tooth transmission shaft 5, and after the rocker 1 is rotated, the front left wheel is finally driven to rotate, so that the device turns rightwards and moves forwards. The bottom surface of chassis 3 still is equipped with drive arrangement, drive arrangement includes drive wheel 12 and drive shaft support 13, fixedly connected with drive shaft 14 on the drive wheel 12, the end of drive shaft 14 is equipped with drive shaft gear 15, drive shaft 14 further rotates with drive shaft support 13 to be connected, still be equipped with drive rocker recess 16 on drive shaft support 13, drive rocker recess 16 is used for installing detachable rocker 1, after inserting rocker 1 in drive rocker recess 16, rocker gear 30 meshes with drive shaft gear 15, it can drive wheel 14 and advance to rotate rocker 1. The top surface of the chassis 3 is provided with a lifting device, and the lifting device comprises two lifting rod bases 17 and a transmission gear bracket. The lifting rod base 17 is provided with a double-threaded rod, the double-threaded rod comprises a left-hand threaded section 23 and a right-hand threaded section 24, and the left-hand threaded section 23 and the right-hand threaded section 24 are identical except for opposite thread directions; the left-handed thread section 23 is provided with a left-handed slider 25, the right-handed thread section 24 is provided with a right-handed slider 26, the left-handed slider 25 is hinged with a first lifting rod 27, the first lifting rod 27 is hinged with a horizontal lifting rod 28, the horizontal lifting rod 28 is hinged with a second lifting rod 29, the first lifting rod 27 and the second lifting rod 29 are completely identical, and the top surface of the horizontal lifting rod 28 is fixedly connected with the bottom surface of the seat 2. In the process that the double-thread screw rotates to drive the horizontal lifting rod 28 to lift, the horizontal lifting rod 28 is always kept horizontal. The transmission gear support is provided with a gear set 19 and a lifting rocker groove 20, one end of the double-threaded rod is provided with a lifting gear 22, the lifting gear 22 is meshed with the gear set 19, the lifting rocker groove 20 is used for installing a rocker 1, and when the rocker 1 is installed on the lifting rocker groove 20, a rocker gear 30 is meshed with the gear set 19. The rocking bar 1 can drive the double-thread rod to rotate, and finally drives the left-direction sliding block 25 and the right-direction sliding block 26 to gather or disperse. In order to prevent the left slider 25 and the right slider 26 from being excessively gathered or scattered, a high limiting block 37 and a low limiting block 36 are respectively arranged on the left slider 25 and the right slider 26, furthermore, a smooth section 38 is arranged at the middle position of the left threaded section 23 and the right threaded section 24 of the double threaded rod, and the smooth section 38 can effectively avoid the excessive gathering of the left slider 25 and the right slider 26. In order to prevent foreign matters from entering the inside of the device, a chassis rail 31 is provided at the chassis 3, and a rocker box 32 is provided on the chassis rail 31. The top of the rocker box 32 is provided with a T-shaped rocker rail 33, the T-shaped rocker rail 33 is positioned right above the connecting line of the steering rocker groove 11, the lifting rocker groove 20 and the driving rocker groove 16, the rocker 1 is inserted into the T-shaped rocker rail 33 straight downwards, and the rocker 1 can be smoothly inserted into the steering rocker groove 11, the lifting rocker groove 20 or the driving rocker groove 16. Further, the rocker 1 is provided with a cylindrical protrusion 34, and correspondingly, the T-shaped rocker rail 33 is provided with two circular notches 35, wherein one circular notch 35 is coaxial with the lifting rocker groove 20, and the other circular notch 35 is coaxial with the driving rocker groove 16. The cylindrical protrusion 34 on the rocker 1 is matched with the circular notch 35, so that the rocker 1 cannot slide along the T-shaped rocker track 33, and the rotation efficiency of the stressed rocker 1 is improved.

When the device is used, a user sits on the seat 2, and turns, lifts, advances and retreats by inserting the rocker 1 into the turning rocker groove 11, the lifting rocker groove 20 or the driving rocker groove 16 to rock.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mobilizable lift chair, includes rocker, seat and chassis, its characterized in that: the bottom surface of the chassis is provided with a steering device, the steering device comprises two toothed rotating wheels, two double-tooth transmission shafts and a main transmission shaft part, the rotating centers of the two toothed rotating wheels are positioned on the same axis, the two toothed rotating wheels are arranged in opposite directions, each toothed rotating wheel is meshed with one end, meshed with one double-tooth transmission shaft, of each toothed rotating wheel, and the two double-tooth transmission shafts are arranged in parallel; the main transmission shaft component comprises a regulating fork and a main transmission shaft, the regulating fork is rotationally connected with the main transmission shaft, a regulating fork chute is arranged on the inner side of the regulating fork, a regulating block is arranged in the regulating fork chute, the main transmission shaft is further rotationally connected with the regulating block, main transmission shaft gears are arranged at two ends of the main transmission shaft, one of the main transmission shaft gears is positioned between the two double-tooth transmission shafts, and a steering rocker groove is also formed in the regulating block; the bottom surface of the chassis is provided with a driving device, the driving device comprises a driving wheel and a driving shaft bracket, the driving wheel is fixedly connected with a driving shaft, one end of the driving shaft is provided with a driving shaft gear, the driving shaft is further rotatably connected with the driving shaft bracket, and the driving shaft bracket is also provided with a driving rocker groove; the top surface of the chassis is provided with a lifting device, the lifting device comprises two lifting rod bases and a transmission gear support, the transmission gear support is provided with a gear set and a lifting rocker groove, the lifting rod bases are provided with double threaded rods, one end of each double threaded rod is provided with a lifting gear, the lifting gear is meshed with the transmission gear, each double threaded rod comprises a left threaded section and a right threaded section, the thread directions of the left threaded section and the right threaded section are opposite, the left threaded section is provided with a left sliding block, the right threaded section is provided with a right sliding block, the left sliding block is hinged with a first lifting rod, the first lifting rod is hinged with a horizontal lifting rod, the horizontal lifting rod is hinged with a second lifting rod, the second lifting rod is further hinged with the right sliding block, and the first lifting rod and the second lifting rod are completely identical, the horizontally arranged lifting rod is fixedly connected with the bottom surface of the seat; and a rocker gear is arranged on the rocker.

2. A mobile lift chair as claimed in claim 1, wherein: the chassis is provided with a chassis rail, the chassis rail is provided with a rocker box, the top of the rocker box is provided with a T-shaped rocker track, and the T-shaped rocker track is positioned right above a connecting line of a steering rocker groove, a lifting rocker groove and a driving rocker groove.

3. A mobile lift chair as claimed in claim 2, wherein: the rocker is provided with a cylindrical protrusion which corresponds to the cylindrical protrusion, two circular notches are arranged on the T-shaped rocker track, one circular notch is coaxial with the lifting rocker groove, and the other circular notch is coaxial with the driving rocker groove.

4. A mobile lift chair as claimed in claim 1, wherein: and the left slider and the right slider are both provided with a low limiting block and a high limiting block.

5. A mobile lift chair as claimed in claim 1, wherein: and a smooth section is arranged between the right-hand thread section and the left-hand thread section of the double-threaded rod.