CN210204068U

CN210204068U - Seat with rotatable armrests

Info

Publication number: CN210204068U
Application number: CN201920946975.1U
Authority: CN
Inventors: Xianguo Xu; 徐贤国; Lei Xu; 徐蕾
Original assignee: Zhejiang Fu Bang Technology Co Ltd
Current assignee: Zhejiang Fu Bang Technology Co Ltd
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-03-31
Anticipated expiration: 2029-06-21

Abstract

The utility model discloses a rotatable seat of handrail, comprising a sea, be equipped with handrail, back and rotation piece on the pedestal, the back sets up an end position of pedestal, it fixes to rotate the pedestal is close to the one end department of back, the handrail passes through rotate the piece with the pedestal rotates to be connected, and the handrail can be relative the roughly level of pedestal rotates, can let the user follow like this one side position of pedestal leaves the seat to, when the user left the seat, the pivoted handrail can provide help for the user equally.

Description

Seat with rotatable armrests

Technical Field

The utility model relates to a medical rehabilitation apparatus field especially relates to a rotatable seat of handrail.

Background

In order to facilitate the life of the elderly and people suffering from particular diseases, there are sometimes seats which are medical rehabilitation devices and can provide assistance to the elderly or patients, such as a wheelchair. The two sides of the existing seat are provided with armrests, and generally, a user can only leave the seat from the front of the seat and cannot leave the seat from one side of the seat body; still other armrests can rotate vertically relative to the seat body, so that a user can leave the seat from one side of the seat body, but the armrests cannot provide help for the user at the moment.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention discloses a seat with rotatable armrests, which enables a user to leave the seat from one side of the seat body, and the armrests can also provide help for the user when leaving the seat.

The utility model discloses a rotatable seat of handrail, include:

the seat body is provided with a handrail and a backrest; and is also provided with

The rotating piece is fixed at one end of the seat body close to the backrest; wherein the content of the first and second substances,

one end of the handrail is rotatably connected with the seat body through the rotating piece, and the handrail can rotate approximately horizontally relative to the seat body.

Furthermore, a first positioning piece is arranged on the armrest, a second positioning piece is arranged on the seat body, and the second positioning piece fixes the armrest on the seat body through the first positioning piece.

Furthermore, a return spring is further arranged, and the return spring can be used for driving the handrail to rotate to the position where the first positioning piece can be matched with the second positioning piece.

The backrest is characterized by further comprising a main beam and a bottom frame, the top end of the main beam is rotatably connected with the end part of the seat body close to the backrest, an adjusting piece is arranged between the seat body and the main beam, and the angle of the seat body relative to the main beam can be adjusted through the adjusting piece; the bottom of the main beam is rotatably connected with the bottom frame, a damping spring is arranged between the main beam and the bottom frame, and the damping spring is rotatably connected with the main beam and the bottom frame.

Further, the regulating part includes first regulating plate and second regulating plate, first regulating plate with the pedestal is connected, the second regulating plate with the girder is connected, be equipped with first regulation hole on the first regulating plate, be equipped with the second regulation hole on the second regulating plate, adjusting bolt connects one first regulation hole and one the second regulation hole is in order to adjust the pedestal is relative the angle of girder.

Further, be equipped with the tensioning piece on the first regulating plate, be equipped with on the second regulating plate a plurality of with tensioning piece matched with third regulation hole, the tensioning piece through with one of them the cooperation of third regulation hole will first regulating plate is preliminary fixed a position on the second regulating plate.

Further, the tensioning member includes a spring and a positioning ball, the positioning ball being connected to the spring.

Further, the seat is a wheelchair.

The utility model discloses a rotatable seat of handrail, compared with the prior art, beneficial effect is:

the armrest can rotate approximately horizontally relative to the seat body, so that a user can leave the seat from one side of the seat, and because the armrest rotates approximately horizontally relative to the seat body, the rotated armrest is located on one side of the seat body, the height is inconvenient or slightly changed, the user can continuously hold the armrest, and the armrest continuously provides help for the user.

Drawings

FIG. 1 is a schematic view of the overall structure of a seat;

FIG. 2 is a schematic view of the armrest;

FIG. 3 is an enlarged view of area A of FIG. 1;

FIG. 4 shows a first connection of the base, the main beam and the bottom frame;

FIG. 5 shows a second connection of the base, the main beam and the bottom frame;

FIG. 6 shows a third connection of the base, the main beam and the bottom frame;

FIG. 7 shows a fourth connection of the base, the main beam and the bottom frame;

FIG. 8 is a schematic view of the seat without armrests;

FIG. 9 is a schematic view of the tension member;

fig. 10 is a schematic view of the structure of the anti-roll wheel and the anti-roll stand.

Description of the figures

100. A seat; 10. a base body; 11. an adjustment member; 111. a first adjusting plate; 112. a second adjusting plate; 113. a second adjustment aperture; 114. a third adjustment aperture; 12. adjusting the bolt; 13. a tensioning member; 131. a stationary case; 132. a positioning ball; 133. a spring; 14. a rotating member; 15. an adjusting plate; 151. a connecting plate; 152. a reinforcing plate; 153. a second positioning hole; 16. a second positioning bolt; 17. a rotating shaft; 20. a main beam; 21. a damping spring; 211. a connecting member; 30. a chassis; 40. a backrest; 50. a handrail; 51. a hand piece; 52. a lifting rod; 521. a first positioning hole; 522. a limiting groove; 53. a first positioning member; 54. a second positioning member; 55. a sleeve; 551. a first positioning bolt; 552. a limiting shaft; 60. a drive device; 61. a steering wheel; 62. a drive wheel; 63. a power source; 64. a handle; 65. an anti-roll wheel; 651. an anti-roll bracket; 70. a foot pedal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it should be noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component or intervening components may exist. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be further noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the present invention discloses a chair 100 with rotatable armrests, which comprises a seat body 10, a main beam 20 and a bottom frame 30. The two ends of the main beam 20 are respectively connected with the seat body 10 and the bottom frame 30 to form an integral frame of the seat 100, the seat body 10 is used for bearing objects, a seat board is arranged on the seat body 10, and the bottom frame 30 serves as a supporting body at the bottom and plays a supporting role. In this embodiment, the seat 100 may be a medical rehabilitation apparatus, such as a manual wheelchair, or an electric wheelchair.

The seat body 10 is provided with a backrest 40 and an armrest 50, and the backrest 40 is disposed at one end of the seat body 10 and can be used for a person sitting on the seat 100 to lean on. The number of the handrails 50 is two, and the handrails are respectively arranged on two sides of the seat body 10.

With reference to fig. 2, the seat body 10 is provided with a rotating element 14, the rotating element 14 is disposed at an end of the seat body 10 close to the backrest 40, the rotating element 14 is integrally formed with the seat body 10, one end of the armrest 50 is rotatably connected to the seat body 10 through the rotating element 14, and the armrest 50 can rotate substantially parallel or parallel with respect to the seat body 10. In this embodiment, the rotation plane of the armrest 50 is parallel to the upper surface of the seat 10. The armrest 50 can rotate parallel to the seat body 10, so that a user can conveniently leave the seat from the side of the seat, and convenience is provided for people who are inconvenient to move or suffer from special diseases. Also, the user can continue to hold the armrest 50 with the hand when the person leaves the seat from one side of the seat body 10, as compared with the case where the armrest 50 is vertically rotated with respect to the seat body 10.

The armrest 50 is provided with a first positioning member 53, and the seat body 10 is provided with a second positioning member 54. When the rotation of the armrest 10 is not required, the second positioning element 54 can be fixedly connected to the first positioning element 53, so as to fix the armrest 50 on the seat body 10, and prevent the armrest 50 from rotating relative to the seat body 10. When the armrest 50 needs to rotate, the second positioning element 54 does not fix the first positioning element 53, and one end of the armrest 50 can rotate relative to the seat 10 through the rotating element 14, so that a person can leave from one side of the seat 10. In this embodiment, a pin hole is formed in the first positioning member 53, a pin corresponding to the pin hole is formed in the second positioning member 54, and the pin is matched with the pin hole to fix the first positioning member 53 and the second positioning member 54 together.

The seat 10 is further provided with a return spring, and the return spring is used for driving the armrest 50 to rotate to a position where the first positioning element 53 can be matched with the second positioning element 54. In this embodiment, one end of the return spring is connected to the armrest 50, and the other end is connected to the rotating member 14.

The handrail 50 is provided with a handrail member 51 and a lifting rod 52, the top end of the lifting rod 52 is fixedly connected with the handrail member 52, the other end of the lifting rod 52 can extend into a sleeve 55 on the handrail 50 and can make telescopic motion relative to the sleeve 55, and the handrail 50 is provided with a positioning structure which can make the lifting rod 52 extend and contract at a certain position. The positioning structure comprises a first positioning bolt 551 arranged on the sleeve 55 and a plurality of first positioning holes 521 arranged on the lifting rod 52, the circle centers of the plurality of first positioning holes 521 are on the same straight line, and the lifting rod 52 and the sleeve 55 are fixed together by the first positioning bolt 551 through one of the first positioning holes 521, so that the lifting rod 52 is prevented from sliding relative to the sleeve 55.

The sleeve 55 is provided with a limiting shaft 552, the lifting rod 52 is provided with a long-strip-shaped limiting groove 522 extending along the sliding direction of the lifting rod, and the limiting shaft 552 is matched with the limiting groove 522 to prevent the lifting rod 52 from rotating relative to the sleeve 55. Particularly, when the lifting rod 52 moves telescopically relative to the sleeve 55, the limiting shaft 552 can prevent the lifting rod 52 from rotating relative to the sleeve 55 through the limiting groove 522, so that the first positioning bolt 551 can fix the lifting rod 52 and the armrest 55 together through the first positioning hole 521.

Referring to fig. 3, the seat body 10 is further provided with a connecting plate 151 and a reinforcing plate 152, the connecting plate 151 and the reinforcing plate 152 are combined to form an adjusting plate 15, the connecting plate 151 and the rotating member 14 are integrally formed, the backrest 40 is rotatably connected to the seat body 10 through the adjusting plate 15, the adjusting plate 15 is provided with a plurality of second positioning holes 153, the backrest 40 is provided with third positioning holes (not shown) matched with the second positioning holes 153, and the second positioning bolts 16 are connected to the corresponding second positioning holes 153 and third positioning holes to adjust the angle of the backrest 40 relative to the seat body 10.

In order to reduce the overall weight of the chair 100, the overall frame of the chair 100 is generally made of an aluminum alloy, and when a user leans on the backrest 40, a certain force is applied to the backrest 40, and the strength of the aluminum alloy is relatively low, and the reinforcing plate 152 is provided to reinforce the stability of the chair 100 when the user leans on the backrest 40. In the present embodiment, the reinforcing plate 152 is made of a steel material, a copper material, or a titanium alloy material. The back 40 through axis of rotation 17 with the regulating plate 15 is connected, the one end of axis of rotation 17 with the back 40 rotates to be connected, the other end with reinforcing plate 152 fixed connection can strengthen the back 40 with the stability that the pedestal 10 is connected.

Two ends of the main beam 20 are respectively connected with the seat body 10 and the bottom frame 30, and the main beam 20 has a plurality of connection modes with the seat body 10 and the bottom frame 30. The following were used:

as shown in fig. 4, the first embodiment: the top end of the main beam 20 is connected with one side of the seat body 10 close to the backrest 40, the bottom end of the main beam is rotatably connected with the underframe 30, a damping spring 21 is arranged between the main beam 20 and the underframe 30, and the damping spring 21 is rotatably connected with the main beam 20 and the underframe 30.

As shown in fig. 5, the second embodiment: the top end of the main beam 20 is rotatably connected to a side of the seat body 10 close to the backrest 40, the bottom end of the main beam is connected to the bottom frame 30, a damping spring 21 is arranged between the seat body 10 and the main beam 20, and the damping spring 21 is rotatably connected to the seat body 10 and the main beam 20.

As shown in fig. 6, the third embodiment: the top end of the main beam 20 is connected with one side of the seat body 10 far away from the backrest 40, the bottom end of the main beam is rotatably connected with the bottom frame 30, a damping spring 21 is arranged between the main beam 20 and the bottom frame 30, and the damping spring 21 is rotatably connected with the main beam 20 and the bottom frame 30.

As shown in fig. 7, the fourth embodiment: the top end of the main beam 20 is rotatably connected to a side of the seat body 10 away from the backrest 40, the bottom end of the main beam is connected to the bottom frame 30, a damping spring 21 is arranged between the seat body 10 and the main beam 20, and the damping spring 21 is rotatably connected to the seat body 10 and the main beam 20.

As shown in fig. 8, in this embodiment, the top end of the main beam 20 is connected to one end of the seat body 10 close to the backrest 40, and the bottom end of the main beam 20 is pivotally connected to the bottom frame 30. The two ends of the damping spring 21 are respectively connected with the main beam 20 and the bottom frame 30 in a rotating manner through connecting pieces 211, when a user sits on the base body 10, a downward force is applied to the base body 10, the base body 10 applies a downward force to the main beam 20, the main beam 20 can rotate around the bottom end of the main beam, the damping spring 21 is pre-tightened, and the damping spring 21 applies an upward force to the main beam 20, so that a damping effect is achieved. The two ends of the damping spring 21 are rotatably connected with the main beam 20 and the underframe 30 through connecting pieces 211 respectively, and when the main beam 20 rotates, the damping spring 21 automatically adjusts the position to achieve the best damping effect.

The pedestal 10 is close to one side position of back 40 through the pivot with the top of girder 20 is rotated and is connected, the pedestal 10 with be equipped with regulating part 11 between the girder 20, regulating part 11 includes first regulating plate 111 and second regulating plate 112, first regulating plate 111 with pedestal 10 fixed connection, second regulating plate 112 with girder 20 fixed connection, first regulating plate 111 is through the adjustment fixed position on the second regulating plate 112, and then the adjustment the pedestal 10 with angle between the girder 20, and then can change user's position of sitting, improved the practicality of seat.

Be equipped with first regulation hole (not shown) on first regulating plate 111, be equipped with a plurality of second regulation holes 113 on the second regulating plate 112, it is a plurality of the centre of a circle of second regulation hole 113 is on same circular arc, and adjusting bolt 12 passes through first regulation hole and one of them second regulation hole 113 will first regulating plate 111 is fixed on a certain position of second regulating plate 112, through with the difference second regulation hole 112 cooperates, changes first regulating plate 111 is in fixed position on the second regulating plate 112, and then changes the pedestal 10 is relative the angle of girder 20.

Referring to fig. 9, in order to facilitate the adjustment bolt 12 to be matched with the first adjustment hole and the second adjustment hole 113, a tensioning member 13 is disposed on the first adjustment plate 111, a plurality of third adjustment holes 114 matched with the tensioning member 13 are disposed on the second adjustment plate 112, centers of the plurality of third adjustment holes 114 are on the same arc, the tensioning member 13 initially positions the first adjustment plate 111 on the second positioning plate 112 through one of the third adjustment holes 114, and at this time, the adjustment bolt 12 corresponds to the first adjustment hole and the second adjustment hole 113, so that the adjustment bolt 12 conveniently fixes the first adjustment plate 111 and the second adjustment plate 112 together through the first adjustment hole and the second adjustment hole 113.

The tension member 13 includes a fixed housing 131, a positioning ball 132 and a spring 133, the fixed housing 131 is fixedly connected to the first adjustment plate 111, the positioning ball 132 is connected to the fixed housing 131 through the spring 133, and the positioning ball 132 may extend into the fixed housing 131.

As shown in fig. 1, when the seat 100 is an electric wheelchair, a driving device 60 is further provided on the seat 100, and the driving device 60 can drive the chassis 30 to move. The driving device 60 includes two steering wheels 61, a driving wheel 62, a power source 63, a handle 64 and an anti-roll wheel 65, the number of the steering wheels 61 is two, and the two steering wheels are respectively and correspondingly connected with one end of the chassis 30 in a rotating manner, and the steering wheels 61 may be universal wheels or omni-directional wheels. The quantity of drive wheel 62 has two, and the setting that corresponds each other is in the other end of chassis 30, be equipped with driving motor and brake equipment on the drive wheel 62, driving motor can drive the drive wheel 62 rotates, brake equipment can be right drive wheel 62 carries out automatic braking. In addition, the driving motor and the braking device are both electrically connected with the power supply 63. The handle 64 is disposed on the armrest 50 for the convenience of the operator, and the handle 64 is electrically connected to the power source 63. As shown in fig. 10, the anti-roll wheel 65 is disposed behind the seat by an anti-roll bracket 651, so as to prevent the seat from being tilted to one side, the anti-roll bracket 651 is fixedly connected to the underframe 30, and the power supply 63 is fixed to the anti-roll bracket 651.

The chassis 30 is further provided with a foot pedal 70 for placing feet, the foot pedal 70 is hinged to the chassis 30, and the foot pedal 70 can rotate a certain angle relative to the chassis 30.

The present invention can be designed in various embodiments and modifications without departing from the spirit and scope of the present invention in its broadest sense, and the above-described embodiments are intended to illustrate the present invention, but not to limit the scope of the present invention.

Claims

1. A rotatable armrest chair comprising:

the seat body is provided with a handrail and a backrest; it is characterized in that also is provided with

2. The rotatable armrest chair as claimed in claim 1, wherein a first positioning member is disposed on the armrest, and a second positioning member is disposed on the seat body, and the second positioning member fixes the armrest on the seat body via the first positioning member.

3. A rotatable armrest chair as claimed in claim 2, wherein a return spring is provided, the return spring being adapted to urge the armrest to rotate to a position in which the first locating member engages with the second locating member.

4. The rotatable armrest chair of claim 3, further comprising a main beam and a bottom frame, wherein the top end of the main beam is rotatably connected to the end of the seat body near the backrest, and an adjusting member is disposed between the seat body and the main beam, the adjusting member being capable of adjusting the angle of the seat body relative to the main beam; the bottom of the main beam is rotatably connected with the bottom frame, a damping spring is arranged between the main beam and the bottom frame, and the damping spring is rotatably connected with the main beam and the bottom frame.

5. The rotatable armrest chair of claim 4, wherein the adjusting member comprises a first adjusting plate and a second adjusting plate, the first adjusting plate is connected to the seat body, the second adjusting plate is connected to the main beam, the first adjusting plate is provided with a first adjusting hole, the second adjusting plate is provided with a second adjusting hole, and an adjusting bolt is connected to the first adjusting hole and the second adjusting hole to adjust the angle of the seat body relative to the main beam.

6. A rotatable armrest chair as claimed in claim 5, wherein the first adjustment plate is provided with a tensioning member, and the second adjustment plate is provided with a plurality of third adjustment apertures for engagement with the tensioning member, the tensioning member initially locating the first adjustment plate on the second adjustment plate by engagement with one of the third adjustment apertures.

7. The armrest rotatable seat of claim 6, wherein the tensioning member comprises a spring and a retaining ball, the retaining ball being connected to the spring.

8. A rotatable armrest seat as claimed in any one of claims 1 to 7 wherein the seat is a wheelchair.