CN210170324U

CN210170324U - Height adjusting device for wheelchair armrest

Info

Publication number: CN210170324U
Application number: CN201920632615.4U
Authority: CN
Inventors: Liangzhen Tang; 唐良振; Tao Wu; 吴焘
Original assignee: Nanjing Kangni Intelligent Technology Co Ltd
Current assignee: Nanjing Kangni Intelligent Technology Co Ltd
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-03-24
Anticipated expiration: 2029-05-06

Abstract

The utility model relates to a height adjusting device of wheelchair handrail, the device include the side guard plate and set up in the arm-rest plate at side guard plate top, the arm-rest plate is the T style of calligraphy of compriseing diaphragm and riser, be equipped with the jack that matches with the riser on the side guard plate, jack one side inner wall is equipped with a plurality of constant head tanks, and riser sliding connection is in the jack, the riser is hollow structure, and one side bottom is equipped with first through-hole, and the opposite side top is equipped with the second through-hole, the inside gag lever post that is equipped with of riser, the gag lever post middle part is articulated with the riser, and the bottom can stretch out first through-hole and support the constant head tank, and the second through-hole can be stretched out at the top, but this.

Description

Height adjusting device for wheelchair armrest

Technical Field

The utility model relates to a height adjusting device of wheelchair handrail belongs to seat and makes technical field.

Background

In order to adapt to the use of different people, the armrest part on the prior wheelchair is designed to be adjustable in height. For example, patent No. ZL2015202507608, entitled "an armrest mechanism for wheelchair with adjustable height" can unlock the locking state between the support and the lifting rod by pressing the handle, so that the armrest and the lifting rod can be adjusted. However, the handle for unlocking and the liftable handrail in the patent are designed in a separated mode, one hand is needed to control the handle when the lifting handrail is used, the other hand is needed to pull the liftable handrail, the operation is inconvenient, and the lifting handrail is particularly inconvenient for old people and disabled people who have inconvenient actions.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art and providing a wheelchair armrest height adjusting device which is applied to the wheelchair and can be controlled to ascend and descend by one hand.

In order to achieve the above object, the utility model provides a technical scheme does: the utility model provides a height adjusting device of wheelchair handrail, includes the side guard plate and sets up in the arm-rest board at side guard plate top, the arm-rest board is the T style of calligraphy of compriseing diaphragm and riser, be equipped with the jack that matches with the riser on the side guard plate, jack one side inner wall is equipped with a plurality of constant head tanks, riser sliding connection in the jack, the riser is hollow structure, and one side bottom is equipped with first through-hole, and the opposite side top is equipped with the second through-hole, the inside gag lever post that is equipped with of riser, the gag lever post middle part is articulated with the riser, and the bottom can stretch out first through-hole and support the constant head tank.

The technical scheme is further designed as follows: the limiting rod is characterized in that a positioning block is formed by protruding the bottom of the limiting rod to one side, a spring is fixed to the other side, one end of the spring is fixed to the limiting rod, the other end of the spring is fixed to the inner wall of the other side of the vertical plate, and the positioning block can extend out of the first through hole under the action of the spring.

The utility model discloses a spring, including gag lever post, spring, limiting rod, gag lever post bottom opposite side is equipped with the erection column, the erection column external diameter matches with the spring internal diameter, a pot head of spring is established on the erection column.

The top of the limiting rod is hinged with a button, and one end of the button extends out of the second through hole.

The positioning grooves are uniformly distributed on the inner side of the insertion hole along the vertical direction.

The utility model has the advantages that:

the utility model discloses a locking and unblock, simple structure of handrail adopt simple gag lever post and spring structure interface to realize the handrail. The button for controlling the unlocking of the armrest ascends and descends along with the armrest, and a user can press the button and lift the armrest with one hand, so that the operation of unlocking and lifting the armrest with one hand can be completed.

Drawings

Fig. 1 is a schematic structural view of the armrest of the present invention.

Fig. 2 is a partially enlarged view of fig. 1.

Fig. 3 is a schematic structural view of a wheelchair using the armrest of the present invention.

In the figure: 1-handrail plate, 11-transverse plate, 12-vertical plate, 13-first through hole, 2-side guard plate, 21-positioning groove, 3-limiting rod, 31-hinge point, 32-limiting block, 33-mounting column, 4-spring and 5-button.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Examples

As shown in fig. 1 and 3, a height adjusting device for a wheelchair armrest of the present embodiment includes a side guard plate 2 and an armrest plate 1 disposed on top of the side guard plate 2.

Handrail board 1 is the T style of calligraphy, including diaphragm 11 and riser 12, be equipped with the jack that matches with riser 12 on the side guard plate 2, the rectangle is personally submitted to the riser cross section, and riser 12 is inserted and is established in the jack for fixed handrail board 1 to for the height adjustment of handrail plays the guide effect, diaphragm 11 is used for supporting user's hand.

Referring to fig. 2, in the present embodiment, a plurality of positioning grooves 21 are formed on an inner wall of one side of the insertion hole, the vertical plate 12 is slidably connected in the insertion hole, and the vertical plate 12 is a hollow structure; a limiting rod 3 is arranged inside a vertical plate 12, a hinge point 31 is arranged in the middle of the limiting rod 3 and is hinged with the vertical plate 12 at the hinge point, the bottom of the limiting rod 3 protrudes to one side to form a limiting block 32, a first through hole 13 is formed in the vertical plate 12 at a position corresponding to the limiting block, the size of the limiting block 32 is smaller than that of the first through hole 13, an installation column 33 is arranged on the other side of the bottom of the limiting rod 3, one end of a spring 4 is sleeved on the installation column 33, the other end of the spring is tightly abutted to the inner wall of the other side of the vertical plate 12, and the; under the free state, 3 bottoms of gag lever post can be to being close to the motion of first through-hole 13 direction under the effect of spring 4 for stopper 32 stretches out first through-hole 13, because the jack inner wall is equipped with constant head tank 21, the stopper 32 that stretches out first through-hole can further support in constant head tank 21, thereby with locking between riser 12 and the side guard plate 2, riser 12 can't remove.

A button 5 is hinged to the top of the limiting rod 3, a vertical plate 12 is provided with a second through hole at a position corresponding to the button, and the second through hole is formed in a part, extending out of the jack, of the vertical plate 12; 5 one end of button is articulated with gag lever post 3, the other end stretches out the second through-hole, then the user accessible is pressed the button 5 that stretches out the second through-hole and is made 3 tops of gag lever post to the direction removal of keeping away from the second through-hole, leverage through

gag lever post

3, 3 bottoms of gag lever post are to keeping away from the direction removal of first through-hole 13, and then stopper 32 roll-off in the constant head tank 21, with riser 12 unblock, then lift or push down the height regulation that handrail can be realized to handrail board 1, otherwise, loosen the button, gag lever post 3 return under the spring 4 effect, continue to lock riser 12.

A plurality of constant head tank 21 are along vertical direction evenly distributed in the inboard edge of jack in this embodiment, and then can form a plurality of height gears, increase the height range that the handrail is adjustable to adapt to different crowds.

The technical scheme of the utility model is not limited to above-mentioned each embodiment, and the technical scheme that all adopt to equate substitution mode to obtain all falls the utility model discloses the within range that claims.

Claims

1. The utility model provides a height adjusting device of wheelchair handrail which characterized in that: including the side guard plate with set up in the arm-rest board at side guard plate top, the arm-rest board is the T style of calligraphy of compriseing diaphragm and riser, be equipped with the jack that matches with the riser on the side guard plate, jack one side inner wall is equipped with a plurality of constant head tanks, riser sliding connection is in the jack, the riser is hollow structure, and one side bottom is equipped with first through-hole, and the opposite side top is equipped with the second through-hole, the inside gag lever post that is equipped with of riser, the gag lever post middle part is articulated with the riser, and the bottom can stretch out first through-hole and support the constant head tank.

2. The height adjusting device of the wheelchair armrest of claim 1, wherein: the limiting rod is characterized in that a positioning block is formed by protruding the bottom of the limiting rod to one side, a spring is fixed to the other side, one end of the spring is fixed to the limiting rod, the other end of the spring is fixed to the inner wall of the other side of the vertical plate, and the positioning block can extend out of the first through hole under the action of the spring.

3. The height adjusting device of the wheelchair armrest of claim 2, wherein: the utility model discloses a spring, including gag lever post, spring, limiting rod, gag lever post bottom opposite side is equipped with the erection column, the erection column external diameter matches with the spring internal diameter, a pot head of spring is established on the erection column.

4. The height adjusting device of the wheelchair armrest of claim 3, wherein: the top of the limiting rod is hinged with a button, and one end of the button extends out of the second through hole.

5. The height adjusting device of the wheelchair armrest of claim 1, wherein: the positioning grooves are uniformly distributed on the inner side of the insertion hole along the vertical direction.