CN203915267U - Movable armrest on a wheelchair - Google Patents

Abstract

The utility model relates to a wheelchair technical field especially relates to a movable handrail on wheelchair, including the handrail frame, the middle part cover of handrail frame is equipped with the handrail cassette, the handrail cassette is provided with the lifter, the handrail cassette includes the cutting ferrule, the cutting ferrule is provided with the cavity that supplies the lifter to peg graft, the one end of lifter is inserted and is located in the handrail cassette, but the other end of lifter is provided with horizontal gliding handrail mechanism, the utility model discloses but handrail freely adjusts height and length, simple structure makes things convenient for the disabled to use.

Description

Movable armrest on a wheelchair

technical field

The utility model relates to the technical field of wheelchair components, in particular to a movable armrest on a wheelchair.

Background technique

The electric wheelchair is based on the traditional manual wheelchair, superimposed with high-performance power drive device, intelligent control device, battery and other components, transformed and upgraded, equipped with artificially operated intelligent controller, can drive the wheelchair to complete forward, backward, steering A new generation of intelligent wheelchair with multiple functions such as standing, lying flat, etc.

Most wheelchair users are disabled, and they need to stay in wheelchairs for a long time, so comfort and practicality are often considered when choosing wheelchairs; armrests are mainly to set off people's arms, providing appropriate comfort, traditional The armrests of wheelchairs are generally fixed and cannot be raised and lowered or slide horizontally. The length of traditional armrests is usually about 13-14 inches long and located about 2-3 inches from the front of the wheelchair. This design can provide support for the user's arms And a certain degree of comfort, but the user must maintain a certain posture for a long time. After a long time, the user's body is prone to fatigue and numbness. In addition, when the user is close to the desk or the dining table, due to the limitation of the length and height of the armrest, the user does not have enough space to get close to the desk or the dining table, resulting in obstacles to use.

Therefore, there is an urgent need for a wheelchair armrest that can freely adjust the lifting height and length.

Contents of the invention

The purpose of the utility model is to provide a movable armrest on a wheelchair for the deficiencies of the prior art. The utility model armrest can freely adjust the lifting height and length, has a simple structure and is convenient for disabled people to use.

In order to achieve the above purpose, a movable armrest on a wheelchair of the present invention includes an armrest frame, the middle part of the armrest frame is covered with an armrest holder, and the armrest holder is provided with a lifting rod, and the armrest holder includes A ferrule, the ferrule is provided with a cavity for the insertion of the elevating rod, one end of the elevating rod is inserted into the armrest holder, and the other end of the elevating rod is provided with a horizontally slidable armrest mechanism.

Preferably, a slot 31 is provided in the armrest holder 2 , a card slot 32 is provided inside the slot 31 , and a card head 33 is provided in the card slot 32 .

Preferably, the ferrule is provided with a first through hole perpendicular to the cavity, the first through hole is pierced with a first button, and the first button includes a first button and a first positioning column, so One end of the first positioning column is fixedly connected to the first button, the other end of the first positioning column passes through the first through hole and is connected to the chuck, and the first positioning column is covered with a first spring, so One end of the first spring is in contact with the first button, and the other end of the first spring is in contact with the first button.

As a preference, the armrest mechanism includes an armrest and a connecting rod, the bottom of the connecting rod is fixedly connected with the lifting rod, slide rails are provided on both sides of the connecting rod, and an accommodation groove is provided at the bottom of the armrest, and the accommodating A slide bar is arranged in the slot, and the slide bar is provided with a chute, and the slide rail is slidably matched with the chute.

Preferably, the side end of the armrest is provided with a second through hole, the side end of the sliding rod is provided with a third through hole, the second through hole communicates with the third through hole, and the second through hole A second button is plugged in, and the second button includes a second button and a second positioning column, and the second positioning column passes through the second through hole and the third through hole in turn, and the side end of the connecting rod is provided with a At least two blind holes, the blind hole and the third through hole are located on the same side of the handrail, the top post and the second spring are arranged in the blind hole, and one end of the second spring abuts against the bottom wall of the blind hole , the other end of the second spring abuts against one end of the top post, and the other end of the top post abuts against the inner wall of the chute.

Preferably, a blocking plate is provided on the inner side of the armrest holder.

The beneficial effects of the utility model: a movable armrest on a wheelchair, including an armrest frame, the middle part of the armrest frame is provided with an armrest holder, and the armrest holder is provided with a lifting rod, and the armrest holder includes a card sleeve , the ferrule is provided with a cavity for insertion of the lifting rod, one end of the lifting rod is inserted into the armrest holder, the other end of the lifting rod is provided with a horizontally slidable armrest mechanism, and the lifting rod The height of the armrest is adjusted by moving up and down in the cavity of the ferrule, and the armrest mechanism is set to be slidable, so as to realize the adjustment of the length of the armrest.

Description of drawings

Fig. 1 is the right side view of the utility model assembled on the wheelchair.

Fig. 2 is a schematic diagram of the three-dimensional structure of the utility model.

Fig. 3 is a schematic diagram of the decomposition mechanism of the present invention.

Fig. 4 is a schematic diagram of the exploded structure of the armrest holder and the lifting rod of the present invention.

Fig. 5 is a schematic diagram of an exploded structure of the armrest mechanism of the present invention.

Reference signs include:

1—armrest frame 2—armrest holder 21—card sleeve 22—first through hole

23—the first button 231—the first button 232—the first positioning column

24—first spring 3—lifting rod 31—slot 32—card slot 33—card head 4—armrest 41—second through hole 42—second button

421—the second button 422—the second positioning column 5—connecting rod

51—Blind hole 52—Jump 53—Second spring 6—Sliding rod

61—the third through hole 7—blocking plate.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figures 1 to 5, a movable armrest on a wheelchair includes an armrest frame 1. The middle part of the armrest frame 1 is provided with an armrest holder 2, and the armrest holder 2 is provided with a lifting rod 3. The armrest holder 2 includes a ferrule 21, and the ferrule 21 is provided with a cavity for the insertion of the elevating rod 3. One end of the elevating rod 3 is inserted in the armrest holder 2, and the elevating rod 3 The other end is provided with a horizontal sliding armrest mechanism.

As shown in Figure 1, the lifting rod 3 adjusts the height of the armrest mechanism by moving up and down in the cavity of the ferrule 21, the armrest mechanism is set to be slidable, the armrest mechanism can move left and right, and the adjustment of the length of the armrest 4 is realized. The novel armrest 4 can freely adjust the lifting height and length, has a simple structure and is convenient for disabled people to use.

In this embodiment, a slot 31 is provided in the armrest holder 2, and a card slot 32 is provided on the inside of the slot 31. A card head 33 is provided in the card slot 32. The first through hole 22 of the cavity, the first through hole 22 is pierced with a first button 23, the first button 23 includes a first button 231 and a first positioning column 232, the first positioning column 232, one end is fixedly connected with the first button 231, the other end of the first positioning post 232 passes through the first through hole 22 and is connected to the chuck 33, and the first positioning post 232 is sleeved with the first spring 24 , one end of the first spring 24 is in contact with 31, and the other end of the first spring 24 is in contact with the first button 231. As shown in FIG. Slot 32, when the user needs to adjust the height of the armrest mechanism, manually press the first button 23, the first positioning column 232 of the first button 23 will push the chuck 33 away from the card slot 32, at this time, the elevating rod 3 is release, it can move up and down in the cavity of the ferrule 21, when the required height is reached, the first button 23 is released, the first spring 24 recovers to deform and pushes the first button 23 outward, and the chuck 33 snaps into the corresponding height. The locking effect is achieved in the slot 32 , and the user can snap the chuck 33 into the slot 32 of different heights to adjust the height of the armrest 4 .

As shown in Figure 5, in this embodiment, the armrest mechanism includes an armrest 4 and a connecting rod 5, the bottom of the connecting rod 5 is fixedly connected to the elevating rod 3, and slide rails are provided on both sides of the connecting rod 5, The bottom of described handrail 4 is provided with accommodating groove, and described accommodating groove is provided with slide bar 6, and described slide bar 6 is provided with chute, and described slide rail is slidably matched with chute, and the side end of described handrail 4 A second through hole 41 is opened, and a third through hole 61 is opened at the side end of the sliding rod 6. The second through hole 41 communicates with the third through hole 61, and the second through hole 41 is plugged with The second button 42, the second button 42 includes a second button 421 and a second positioning column 422, the second positioning column 422 passes through the second through hole 41 and the third through hole 61 in turn, the connecting rod 5 At least two blind holes 51 are provided at the side end of the armrest 4. The blind holes 51 and the third through hole 61 are located on the same side of the armrest 4. The top posts 52 and the second spring 53 are arranged in the blind holes 51. One end of the second spring 53 abuts against the bottom wall of the blind hole 51, the other end of the second spring 53 abuts against one end of the top post 52, the other end of the top post 52 abuts against the inner wall of the chute, and the armrest 4 When fixed, the second through hole 41 of the armrest 4 and the third through hole 61 of the sliding rod 6 are all connected to one of the blind holes 51. At this time, the top post 52 in the blind hole 51 connected to the third through hole 61 Because the second spring 53 recovers and will be pushed out, a part of the push post 52 will be inserted into the third through hole 61 to achieve a locking effect. At this time, the armrest 4 cannot be moved. When the user needs to slide the armrest 4, press the The second button 42, the second button 42 pushes the top column 52 back into the blind hole 51 to release the locking effect, and the armrest 4 can slide on the connecting rod 5. The side ends of the connecting rod 5 in this embodiment are provided with four blind holes. The hole 51 represents that the armrest 4 has four sliding strokes.

In this embodiment, the inner side of the armrest holder 2 is provided with a blocking plate 7, and the blocking plate 7 is used to protect the thighs on both sides of the user from external impact damage.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (1)

1. A movable armrest on a wheelchair, comprising an armrest frame (1), characterized in that: the middle part of the armrest frame (1) is covered with an armrest holder (2), and the armrest holder (2) is provided with The lifting rod (3), the armrest holder (2) includes a ferrule (21), the ferrule (21) is provided with a cavity for the lifting rod (3) to be plugged in, the lifting rod (3) One end is inserted into the armrest holder (2), the other end of the elevating rod (3) is provided with a horizontally slidable armrest mechanism, and the armrest holder (2) is provided with a slot (31), the The inside of the slot (31) is provided with a card slot (32), the card slot (32) is provided with a card head (33), and the card sleeve (21) is provided with a first channel perpendicular to the cavity. hole (22), the first through hole (22) is pierced with a first button (23), and the first button (23) includes a first button (231) and a first positioning column (232), the One end of the first positioning post (232) is fixedly connected to the first button (231), and the other end of the first positioning post (232) passes through the first through hole (22) and is connected to the chuck (33), The first positioning post (232) is sheathed with a first spring (24), one end of the first spring (24) is in contact with (31), and the other end of the first spring (24) is in contact with the first Button (231) abuts. 2. A movable armrest on a wheelchair according to claim 1, characterized in that: the armrest mechanism includes an armrest (4) and a connecting rod (5), and the bottom of the connecting rod (5) is in contact with the lifting rod ( 3) Fixed connection, slide rails are provided on both sides of the connecting rod (5), and a storage tank is provided at the bottom of the handrail (4), and a sliding rod (6) is provided in the storage tank, and the sliding The rod (6) is provided with a chute, and the slide rail is slidably matched with the chute. 3. The movable armrest on a wheelchair according to claim 2, characterized in that: the side end of the armrest (4) is provided with a second through hole (41), and the side end of the sliding rod (6) A third through hole (61) is opened, the second through hole (41) communicates with the third through hole (61), and the second through hole (41) is inserted with a second button (42), so The second button (42) includes a second button (421) and a second positioning column (422), and the second positioning column (422) passes through the second through hole (41) and the third through hole (61) in sequence , the side end of the connecting rod (5) is provided with at least two blind holes (51), the blind holes (51) and the third through hole (61) are located on the same side of the armrest (4), the blind holes (51) is provided with a top column (52) and a second spring (53), one end of the second spring (53) abuts against the bottom wall of the blind hole (51), and the second spring (53) The other end abuts against one end of the top post (52), and the other end of the top post (52) abuts against the inner wall of the chute. 4. The movable armrest on a wheelchair according to claim 1, characterized in that: a blocking plate (7) is arranged on the inner side of the armrest holder (2).