CN215821438U

CN215821438U - Wheelchair with rocker transmission synchronizing wheel

Info

Publication number: CN215821438U
Application number: CN202122277246.1U
Authority: CN
Inventors: 苏勇; 刘义
Original assignee: Grace Medical Instrument Co ltd
Current assignee: Grace Medical Instrument Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-02-15
Anticipated expiration: 2031-09-22

Abstract

The utility model belongs to the technical field of wheelchairs, in particular to a wheelchair with rocker transmission synchronizing wheels, and provides a scheme aiming at the problems in the background art. The lifting mechanism is arranged in the hidden box, so that the wheelchair is not easily damaged by skin-conditioning children, and the wheelchair is not easily lost; the ventilation mechanism is arranged, so that the use comfort of the whole wheelchair can be improved, and the practicability is improved; the supporting buffer mechanism is arranged, so that the wheelchair body can be lifted more stably, and the wheelchair body is not easy to be damaged by heavy users.

Description

Wheelchair with rocker transmission synchronizing wheel

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a wheelchair with a rocker transmission synchronizing wheel.

Background

Through the retrieval, the patent that publication number is CN212522215U discloses a wheelchair that is provided with rocker transmission synchronizing wheel, including base, seat and regulating tube, guiding mechanism is installed to the bottom of base, and the top both sides of base have all welded the sill post, and the back of the chair is installed to the edge of seat, and still installs the connecting piece through the screw on the both ends lateral wall of seat, and the connecting piece is fixed on the regulating tube. According to the wheelchair, the height of the seat can be synchronously adjusted by only shaking the rotating handle on one side, so that the wheelchair is convenient and fast, and the applicability of the wheelchair is improved.

However, the above patents have the following disadvantages: on one hand, the synchronous belt of the patent is exposed outside and is easily cut short by some children who adjust the skin at home, so that the wheelchair loses the lifting function; on the other hand, the seat of the above patent is not comfortable, and the whole wheelchair does not have a cushioning function, and is unstable to support, and is easily damaged by some users with heavy body. We have therefore proposed a wheelchair provided with a rocker-driven synchronizing wheel.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a wheelchair with a rocker-driven synchronizing wheel.

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

the utility model provides a be provided with wheelchair of rocker transmission synchronizing wheel, all installs the base of the universal wheel of stopping of area including bottom four corners position, the top outer wall welding of base has hidden case, and is equipped with elevating system in the hidden case, elevating system includes two lead screws, cup joints in proper order two synchronizing wheels of two lead screw lower parts, same elevator of spiro union on two lead screws, welds at the T type slider of elevator lateral wall, set up at the slide of hidden case one side inner wall, through bolt fastening at the wheelchair body of T type slider lateral wall and the rocker of welding at one of them lead screw top outer wall, two the synchronizing wheel passes through synchronous belt drive and connects, the bottom of wheelchair body is equipped with the support buffer gear, and this internal ventilation mechanism that is equipped with of wheelchair.

Preferably, the two lead screws are respectively connected with the top inner wall and the bottom inner wall of the hidden box through two bearings, the outer wall of the T-shaped sliding block is in sliding connection with the inner wall of the sliding way, and the outer wall of the other side of the hidden box is hinged with a box door.

Preferably, the ventilation mechanism comprises a mounting groove formed in the inner wall of the bottom of the wheelchair body, a fan fixed on the inner wall of the lower part of one side of the mounting groove through a bolt, heating wires welded on the inner wall of the upper part of one side of the mounting groove at equal intervals, and air holes formed in the inner wall of the top of the wheelchair body and communicated with the mounting groove at equal intervals and uniformly distributed.

Preferably, the supporting and buffering mechanism comprises a sliding chute formed in the inner wall of the top of the base, two sliding blocks, an X-shaped hinged frame arranged in a hinged mode, a sliding column inserted into the two sliding blocks in a penetrating mode, and a buffering spring sleeved on the sliding column.

Preferably, two the outer wall of sliding block all with the inner wall sliding connection of spout, and the both ends outer wall of traveller welds the both sides inner wall at the spout respectively.

Preferably, the outer walls of the two ends of the buffer spring are respectively welded on the outer wall of one side of the two sliding blocks, which are close to each other, and the X-shaped hinge frame is composed of two hinge plates which are obliquely and crosswise arranged.

Preferably, the tops of the two hinged plates are hinged to the bottom of the wheelchair body, the bottoms of the two hinged plates are respectively hinged to the tops of the two sliding blocks, and the intersection of the two hinged plates is hinged through a hinge.

The utility model has the beneficial effects that:

1. the lifting mechanism is arranged, a user can simultaneously rotate two lead screws by rotating one rocker and utilizing the transmission cooperation of two synchronous wheels and one synchronous belt, and the T-shaped sliding block can drive the wheelchair body to lift under the limiting of the slideway, so that the adjustment work of the wheelchair is more convenient, and more importantly, the lifting mechanism is arranged in the hidden box, so that the wheelchair is not easily damaged by a child who transfers skin, and further the wheelchair is not easily lost the lifting function;

2. the ventilation mechanism is arranged, so that cold air is distributed at the uniformly distributed air vents through the cold air blown by the fan to cool the body in hot summer, and warm air is distributed at the uniformly distributed air vents to dispel cold for the body through the matching use of the fan and the heating wires in cold winter, so that the use comfort of the whole wheelchair can be improved, and the practicability is improved;

3. be provided with and support buffer gear, can provide fine support and cushioning effect at the in-process that the wheelchair body goes up and down, and then make the wheelchair body go up and down more stably, also can provide fine support and cushioning effect when some users that the size is heavier sit simultaneously, and then make the wheelchair body be difficult for being sat badly by some users that the size is heavier.

Drawings

FIG. 1 is a schematic perspective view of a wheelchair with a rocker-driven synchronizing wheel according to the present invention from the right;

FIG. 2 is a schematic left-side perspective view of a wheelchair with a rocker-driven synchronizing wheel according to the present invention;

FIG. 3 is a schematic perspective view of a wheelchair with a rocker-driven synchronizing wheel according to the present invention, with parts hidden;

fig. 4 is a schematic perspective exploded view of a ventilation mechanism in a wheelchair provided with a rocker-driven synchronizing wheel according to the present invention.

In the figure: 1 base, 2 hiding cases, 3 lead screws, 4 synchronizing wheels, 5 lifting blocks, 6T-shaped sliding blocks, 7 slideways, 8 wheelchair bodies, 9 rocking bars, 10 synchronizing belts, 11 mounting grooves, 12 fans, 13 heating wires, 14 air holes, 15 sliding grooves, 16 sliding blocks, 17X-shaped hinged frames, 18 sliding columns, 19 buffer springs and 20 box doors.

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.

Referring to fig. 1-4, a wheelchair with rocker transmission synchronizing wheels comprises a base 1 with brake universal wheels, a hidden box 2, a box door 20, a lifting mechanism, a supporting buffer mechanism and a ventilation mechanism, wherein the hidden box 2 is welded on the outer wall of the top of the base 1, the lifting mechanism is arranged in the hidden box 2, the supporting buffer mechanism is arranged at the bottom of a wheelchair body 8, the ventilation mechanism is arranged in the wheelchair body 8, the lifting mechanism comprises two lead screws 3, two synchronizing wheels 4 sequentially sleeved on the lower parts of the two lead screws 3, a same lifting block 5 screwed on the two lead screws 3, a T-shaped slide block 6 welded on the side wall of the lifting block 5, a slide 7 arranged on the inner wall of one side of the hidden box 2, a wheelchair body 8 fixed on the side wall of the T-shaped slide block 6 through bolts, and a rocker 9 welded on the outer wall of the top of one of the lead screws 3, the two synchronizing wheels 4 are in transmission connection through a synchronous belt 10, the two lead screws 3 are respectively connected with the top inner wall and the bottom inner wall of the hidden box 2 through two bearings, the outer wall of the T-shaped sliding block 6 is in sliding connection with the inner wall of the slide way 7, the box door 20 is hinged to the outer wall of the other side of the hidden box 2, and a lifting mechanism is arranged, so that a user only needs to rotate one rocker 9, the two lead screws 3 can simultaneously rotate under the transmission cooperation of the two synchronizing wheels 4 and the synchronous belt 10, and the T-shaped sliding block 6 can drive the wheelchair body 8 to lift under the limit of the slide way 7, so that the adjustment work of the wheelchair is more convenient, and more importantly, the lifting mechanism is arranged in the hidden box 2, so that the wheelchair is not easily damaged by a child, and further the wheelchair is not easily lose the lifting function;

the ventilation mechanism is composed of a mounting groove 11 arranged on the inner wall of the bottom of the wheelchair body 8, a fan 12 fixed on the inner wall of the lower part of one side of the mounting groove 11 through a bolt, heating wires 13 welded on the inner wall of the upper part of one side of the mounting groove 11 at equal intervals, and vent holes 14 arranged on the inner wall of the top of the wheelchair body 8 and communicated with the mounting groove 11 at equal intervals and uniformly distributed, and is provided with a ventilation mechanism, so that cold air is emitted from the uniformly distributed vent holes 14 to cool and relieve summer heat of a body through the cold air blown by the fan 12 in hot summer, and warm air is emitted from the uniformly distributed vent holes 14 to dispel cold of the body through the matching use of the fan 12 and the heating wires 13 in cold winter, so that the use comfort level of the whole wheelchair can be improved, and the practicability is improved;

the supporting buffer mechanism comprises a sliding chute 15 arranged on the inner wall of the top of the base 1, two sliding blocks 16, an X-shaped hinged frame 17 arranged in a hinged mode, an upper sliding column 18 inserted in the two sliding blocks 16 in a penetrating mode and a buffer spring 19 sleeved on the sliding column 18, the outer walls of the two sliding blocks 16 are in sliding connection with the inner wall of the sliding chute 15, the outer walls of the two ends of the sliding column 18 are welded on the inner walls of the two sides of the sliding chute 15 respectively, the outer walls of the two ends of the buffer spring 19 are welded on the outer wall of one side, close to the two sliding blocks 16, of the two sliding blocks respectively, the X-shaped hinged frame 17 is composed of two inclined hinged plates arranged in a crossed mode, the tops of the two hinged plates are hinged to the bottom of the wheelchair body 8, the bottoms of the two hinged plates are hinged to the tops of the two sliding blocks 16 respectively, the crossed position of the two hinged plates is hinged through a hinge, the supporting buffer mechanism is arranged, and good supporting and buffering effects can be provided in the lifting process of the wheelchair body 8, and then make wheelchair body 8 go up and down more stably, also can provide fine support and cushioning effect when some heavier users of size sit simultaneously, and then make wheelchair body 8 be difficult for being sat badly by some heavier users of size.

The working principle is as follows: when the lifting mechanism works, a user drives one of the screw rods 3 and one of the synchronous wheels 4 to rotate through the rotating rocker 9, the other synchronous wheel 4 drives the other screw rod 3 to rotate under the transmission action of the synchronous belt 10, the lifting block 5 screwed on the two screw rods 3 drives the T-shaped sliding block 6 to move up and down under the limit of the slideway 7, and finally the T-shaped sliding block 6 drives the wheelchair body 8 to lift; when the ventilation mechanism works, in hot summer, the cold air blown out by the fan 12 enables the evenly distributed air holes 14 to emit cold air to cool the body, and in cold winter, the fan 12 and the electric heating wire 13 are matched for use, so that the evenly distributed air holes 14 emit warm air to dispel cold; when the supporting buffer mechanism works, when the wheelchair body 8 moves upwards or downwards, the bottom of the X-shaped hinged frame 17 which is hinged to the wheelchair body is contracted or expanded, the two sliding blocks 16 slide in the sliding columns 18 and the sliding grooves 15 and are close to or far away from each other, and finally the buffer spring 19 is elastically deformed.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A wheelchair with rocker transmission synchronizing wheels comprises a base (1) with brake universal wheels, which is installed at the four corners of the bottom, and is characterized in that a hidden box (2) is welded on the outer wall of the top of the base (1), a lifting mechanism is arranged in the hidden box (2), the lifting mechanism comprises two lead screws (3), two synchronizing wheels (4) sequentially sleeved at the lower parts of the two lead screws (3), a same lifting block (5) screwed on the two lead screws (3), a T-shaped sliding block (6) welded on the side wall of the lifting block (5), a slideway (7) arranged on the inner wall of one side of the hidden box (2), a wheelchair body (8) fixed on the side wall of the T-shaped sliding block (6) through bolts and a rocker (9) welded on the outer wall of the top end of one lead screw (3), the two synchronizing wheels (4) are in transmission connection through a synchronous belt (10), the bottom of the wheelchair body (8) is provided with a supporting and buffering mechanism, and a ventilation mechanism is arranged in the wheelchair body (8).

2. The wheelchair provided with the rocker-driven synchronizing wheel as claimed in claim 1, wherein the two lead screws (3) are respectively connected with the top inner wall and the bottom inner wall of the hidden box (2) through two bearings, the outer wall of the T-shaped sliding block (6) is slidably connected with the inner wall of the slideway (7), and the other side outer wall of the hidden box (2) is hinged with a box door (20).

3. The wheelchair with the rocker-driven synchronizing wheel as claimed in claim 1, wherein the ventilation mechanism comprises a mounting groove (11) formed in the inner wall of the bottom of the wheelchair body (8), a fan (12) fixed on the inner wall of the lower part of one side of the mounting groove (11) through a bolt, electric heating wires (13) welded on the inner wall of the upper part of one side of the mounting groove (11) and uniformly distributed through holes (14) formed in the inner wall of the top of the wheelchair body (8) and communicated with the mounting groove (11).

4. The wheelchair provided with the rocker-driven synchronizing wheel as claimed in claim 1, wherein the supporting and buffering mechanism comprises a sliding groove (15) formed in the inner wall of the top of the base (1), two sliding blocks (16), an X-shaped hinged frame (17) arranged in a hinged manner, a sliding column (18) inserted through the two sliding blocks (16) and a buffering spring (19) sleeved on the sliding column (18).

5. Wheelchair provided with rocker-driven synchronizing wheel according to claim 4, characterized in that the outer walls of both sliding blocks (16) are connected with the inner wall of the sliding chute (15) in a sliding way, and the outer walls of both ends of the sliding column (18) are welded on the inner walls of both sides of the sliding chute (15).

6. Wheelchair with rocker-driven synchronizing wheel according to claim 4, characterized in that the outer walls of the two ends of the buffer spring (19) are welded to the outer wall of the side where the two sliding blocks (16) are close to each other, and the X-shaped hinge frame (17) is composed of two tilted and crossed hinge plates.

7. Wheelchair provided with rocker-driven synchronizing wheel according to claim 6, characterized in that the top of each of the two hinged plates is hinged to the bottom of the wheelchair body (8), and the bottom of each of the two hinged plates is hinged to the top of each of the two sliding blocks (16), and the intersection of the two hinged plates is hinged by a hinge.