CN218833041U

CN218833041U - Wheelchair table board device

Info

Publication number: CN218833041U
Application number: CN202222416283.0U
Authority: CN
Inventors: 徐静
Original assignee: Chengde Medical University
Current assignee: Chengde Medical University
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-04-11
Anticipated expiration: 2032-09-13

Abstract

The utility model provides a wheelchair table device, including setting up the fixed establishment on the wheelchair handrail, fixed establishment is connected with link mechanism, link mechanism can with fixed establishment mutually supports to the realization constitutes the table between the wheelchair handrail. The utility model discloses a wheelchair table design forms the desktop after stretching the connecting rod based on the scalable and light characteristic of connecting rod, assists the fixed plate to improve the intensity of desktop again, makes its holding power can satisfy daily life's needs, reaches light, reduces occupation space's effect.

Description

Wheelchair table board device

Technical Field

The utility model relates to a medical supplies technical field particularly, relates to a wheelchair table device.

Background

With the entering of China into an aging society, some old people have motor dysfunction due to the decline of body functions, and need to take a wheelchair to do activities indoors and outdoors. As an important exercise assisting tool, when the elderly have common behaviors such as dining, reading books and newspapers, and transfusion, the wheelchair is often required to be provided with a related supporting mechanism for convenience. Wheelchairs in the current market generally adopt a tabletop with a plate-type structure, and the design of the plate-type structure usually occupies a large space and is heavy, so that a great deal of inconvenience in operation can be caused to wheelchair users.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wheelchair table device, the utility model discloses a device forms the desktop after stretching the connecting rod based on the scalable and light characteristic of connecting rod, assists the fixed plate to improve the intensity of desktop again, makes its holding power can satisfy daily life's needs, and not only lightly still can save space, can both be suitable for to fixed or movable wheelchair handrail.

In order to realize the above purpose of the utility model, the following technical scheme is adopted:

the utility model provides a wheelchair table device, including setting up the fixed establishment on the wheelchair handrail, fixed establishment is connected with link mechanism, link mechanism can with fixed establishment mutually supports to the realization constitutes the table between the wheelchair handrail.

Furthermore, link mechanism is including a plurality of member that length is the same, be X type between the member and intersect and splice in both ends and centre department, relative motion can take place between the member, in order to realize link mechanism's scalable function.

The rod pieces are preferably spliced by using a riveting process, so that the stretching and shrinking effects of the connecting rod mechanism are better; the rod piece is preferably made of stainless steel or hard plastic, has certain supporting strength and can achieve light weight, and is convenient to operate and use; since the overall width of the rod member after stretching is shorter than that in the unstretched state, the size of the single rod member can be specifically defined according to the width between the armrests of the wheelchair.

Furthermore, the link mechanism further comprises a return spring and a rotating shaft, and the return spring and the rotating shaft are arranged on the rod piece on one side of the link mechanism.

Reset spring installs in the middle of two member in the outside, can provide the member in the outside to the supporting force at both ends, through the motion drive all member of transporting each other between the member, makes link mechanism keep the state of contracting when under the normal state, reduces the space and occupies, can also make link mechanism keep the state of straining when tensile simultaneously, improves support intensity.

The rotating shaft penetrates through the inner part of the return spring and the two ends of the two rod pieces, so that the return spring and the connecting rod mechanism can slide along the shaft and rotate around the shaft on the rotating shaft.

Further, fixed establishment includes connecting rod movable block and pivot fixing base, the connecting rod movable block with the pivot fixing base all sets up the outside at one of them wheelchair handrail, the pivot fixing base with the pivot is connected, the connecting rod movable block with it is epaxial the member is connected, reset spring with the connecting rod movable block can slide and pivoting in the pivot along the axle, and be close to wheelchair handrail front end the connecting rod movable block is provided with the slip space.

The connecting rod movable block and the rotating shaft fixing seat are both provided with two, a round hole allowing the rotating shaft to pass through is formed in the connecting rod movable block, the rotating shaft sequentially passes through the connecting rod movable block, the reset spring, the other connecting rod movable block and the other rotating shaft fixing seat on the rotating shaft fixing seat, and therefore the reset spring and the connecting rod movable block can slide along the shaft and rotate around the shaft on the rotating shaft.

The connecting rod movable block close to the front end of the wheelchair armrest is set to be in a limiting sliding state, so that the connecting rod movable block can only slide in a reserved sliding space, and the purpose is to enable the edge of the connecting rod mechanism to be smoothly inserted into the groove of the fixing plate after the connecting rod mechanism is stretched.

Furthermore, the link mechanism further comprises a fixed hook, and the fixed hook is arranged on the rod piece farthest from the rotating shaft.

Namely, the outmost side of one side of the connecting rod mechanism is connected to one handrail through the rotating shaft fixing seat and the connecting rod movable block, and the outmost side of the other side of the connecting rod mechanism is provided with a fixing hook for fixing the other handrail so as to realize that the connecting rod mechanism is fixed between the two handrails after being stretched. Preferably, a fastening hook is provided on each of the two outermost rods.

Furthermore, the fixing mechanism further comprises a fixing hook cavity matched with the fixing hook for use, the fixing hook cavity is arranged on the inner side of the wheelchair armrest which is not provided with the rotating shaft, and a fixing hook baffle is arranged outside the fixing hook cavity.

The fixed hook baffle is preferably provided with about two, and the size of fixed hook baffle inward flange sets up to slightly being greater than the size of two fixed hook outward flanges after link mechanism stretches completely, leaves the cavity that the size is greater than fixed hook thickness in the fixed hook intracavity, can guarantee like this that the fixed hook can be fixed smoothly.

Furthermore, the fixing mechanism also comprises a fixing plate, the fixing plate is arranged on the wheelchair armrest with the rotating shaft, the width of the fixing plate is the same as that of the wheelchair armrest, and the length of the fixing plate is the same as the distance between the wheelchair armrests.

The length and width of the fixing plate are designed to ensure that the fixing plate is completely overlapped with the armrest of the wheelchair when not in use and can just reach the other armrest when in use. Preferably, the thickness of the fixed plate and the wheelchair armrest after being overlapped is the same as that of the other armrest, so that the use comfort and the overall aesthetic property are improved.

Furthermore, the fixed plate is connected with the wheelchair armrests through a pin shaft, the pin shaft has a rotation limiting function, and the fixed plate can rotate to be perpendicular to the two wheelchair armrests at most.

The rotation limit can ensure the stability of the fixing plate at the position perpendicular to the two wheelchair armrests, so that the connecting rod mechanism can better improve the supporting effect of the desktop after being inserted into the fixing plate.

Further, a U-shaped groove is provided on a side of the fixing plate facing the link mechanism, and an edge of the link mechanism can be inserted into the groove.

Further, a desktop cover plate is arranged on the surface of the rod piece.

The desktop cover plate covers the surface of the rod piece, so that the connecting rod mechanism forms a flat desktop after being stretched, and the desktop is convenient to use.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) The utility model discloses a design of wheelchair table is based on the scalability of connecting rod structure, and the table can contract automatically when not using, reaches light, reduces occupation space's effect.

(2) The utility model discloses still be provided with the fixed plate and come the cooperation connecting rod structure, strengthen the stability and the supporting effect of table.

(3) The utility model discloses still used parts such as pivot and connecting rod movable block, made link mechanism can slide and rotate in the pivot wantonly, promoted the convenience and the travelling comfort of operation.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic structural view of a wheelchair table provided in an embodiment of the present invention when not in use;

fig. 2 is a schematic structural view of the wheelchair table provided in the embodiment of the present invention after the assembly is completed;

fig. 3 is a schematic structural view of a fixing hook cavity according to an embodiment of the present invention.

The wheelchair comprises 1-a wheelchair left armrest, 2-a fixing plate, 3-a rotating shaft fixing seat, 4-a desktop cover plate, 5-a pin shaft, 6-a groove, 7-a connecting rod movable block, 8-a return spring, 9-a rotating shaft, 10-a rod piece, 11-a rivet, 12-a fixing hook, 13-a wheelchair right armrest, 14-a connecting rod mechanism, 15-a fixing hook cavity and 16-a fixing hook baffle.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "in communication" are to be construed broadly, e.g., as meaning either fixed or removable communication, or integral communication; either mechanically or electrically; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to clarify the technical solution of the present invention, the following description is made in the form of specific embodiments.

Examples

The embodiment provides a wheelchair table device, which mainly realizes the expansion and the storage of the wheelchair table through the stretching or the contraction of a connecting rod mechanism connected to a wheelchair handrail. As shown in fig. 1, the linkage mechanism of the present device is a schematic view of being hung on the armrest of the wheelchair when not in use.

The link mechanism 14 mainly comprises a plurality of rod members 10 with the same length, wherein the rod members 10 arranged on the armrests of the wheelchair are removed, every two of the rod members 10 are arranged in an X-shaped cross manner, and the middle and two ends of the rod members 10 are riveted and fixed by rivets 11, so that the riveted rod members 10 can move relatively to realize the stretching and contracting functions of the link mechanism 14. The rod 10 is made of stainless steel or hard plastic to balance the requirements of the table top in terms of support and weight. Meanwhile, the link mechanism 14 is arranged on the left armrest 1 of the wheelchair in consideration of the use habit of the wheelchair user and the space occupied by the desk, and is retracted and hung on the outer side of the armrest when not in use.

The surface of the rod piece 10 is also provided with a desktop cover plate 4, the desktop cover plate 4 is mainly used for being attached to the outer surface of the connecting rod mechanism when the connecting rod mechanism is in an unstretched state, hands are prevented from being injured by clamping of the return spring 8 after the connecting rod mechanism is stretched by mistake, the whole length of the desktop cover plate 4 can be close to that of the single rod piece 10, and the width is not too wide, so that the normal use of the connecting rod mechanism is ensured.

The middle of the two leftmost rod pieces 10 is also provided with a return spring 8 and a rotating shaft 9, the rotating shaft 9 penetrates through the middle of the return spring 8 and the two ends of the rod pieces 10, the return spring 8 is used for providing force for the leftmost rod pieces 10 to be stretched towards the two ends, and the whole link mechanism 14 is in a contraction state under a normal state through riveting and relative movement between the rod pieces 10, so that the effects of reducing occupied space and facilitating hanging are achieved, and after the link mechanism 14 is stretched and fixed, the return spring 8 can enable the link mechanism to be kept in a tight state, and therefore the stability of the table is improved. The two rightmost rods 10 are also provided with fixing hooks 12 for fixing the right armrest 13 of the wheelchair.

The wheelchair table device of the utility model also comprises a fixing mechanism which is mainly arranged on the wheelchair handrail and is used for being connected and fixed with the link mechanism 14. The outer side of the left armrest 1 of the wheelchair is provided with two connecting rod movable blocks 7 and two rotating shaft fixing seats 3, the connecting rod movable blocks 7 and the rotating shaft fixing seats 3 are respectively connected with two leftmost rod pieces 10, and the rotating shaft fixing seats 3 are respectively connected with two ends of a rotating shaft 9. Wherein, the connecting rod movable block 7 is provided with a round hole for allowing the rotating shaft 9 to pass through, the rotating shaft 9 sequentially passes through the connecting rod movable block 7, the reset spring 8, the other connecting rod movable block and the other rotating shaft fixed seat 3 on the rotating shaft fixed seat 3, and the connecting rod mechanism 14 and the reset spring 8 can slide along the shaft and rotate around the shaft on the rotating shaft 9 through the connecting rod movable block 7. In order to smoothly insert the edge of the rear tension link mechanism 14 into the groove 6 of the fixed plate 2, the link moving block 7 near the front end of the wheelchair armrest is provided with a fixed sliding space which can only slide and rotate in the reserved space.

The inner side of the right wheelchair armrest 13 is provided with a fixed hook cavity 15 matched with the fixed hook 12 for use, a fixed hook baffle 16 is arranged outside the fixed hook cavity 15, the fixed hook baffle 16 is arranged to be two on the left and right, the size of the inner edge of the fixed hook baffle 16 is slightly larger than the size of the outer edges of the two fixed hooks 12 after the connecting rod mechanism is completely stretched, a cavity with the size larger than the thickness of the fixed hook 12 is reserved in the fixed hook cavity 15, and the fixed hook 12 can be smoothly fixed on the right wheelchair armrest 13 through the design.

The upper surface of the left wheelchair armrest 1 is also provided with a fixing plate 2, in order to improve the use comfort and the overall aesthetic property, the width of the fixing plate 2 is the same as that of the wheelchair armrest, the length of the fixing plate 2 is the same as the distance between the wheelchair armrests, the fixing plate 2 can be completely superposed on the wheelchair armrest, and the thicknesses of the fixing plate 2 and the wheelchair armrest are the same as that of the other armrest when the fixing plate 2 and the wheelchair armrest are superposed. The front end of fixed plate 2 and wheelchair left side handrail 1 is connected through round pin axle 5, and fixed plate 2 can be around round pin axle 5 clockwise horizontal rotation, and in order to improve the stability of fixed plate 2, round pin axle 5 has rotatory limit function, makes fixed plate 2 can rotate to two wheelchair handrails of perpendicular to department at most, and the other end of fixed plate 2 just reaches right handrail department this moment. The fixing plate 2 is provided with a U-shaped groove 6 on the side facing the link mechanism 14, and after the link mechanism 14 is stretched, the edge of the fixing plate can be inserted into the groove 6 for fixing, so as to improve the stability and the supporting strength of the table.

The utility model discloses a wheelchair table device has been designed based on link mechanism, has set up fixed establishment and link mechanism 14 and has cooperateed, constitutes the table between the wheelchair handrail to intensity promotion has been carried out the table, brings convenient enjoyment for the wheelchair person of taking. The specific use mode of the device is as follows:

when the wheelchair is not used, the link mechanism 14 is hung on the outer side of the left armrest 1 of the wheelchair, the fixing plate 2 is superposed on the left armrest 1 of the wheelchair, when the wheelchair is used, the fixing plate 2 is firstly rotated clockwise to be vertical to the armrests of the two wheelchairs, then the link mechanism 14 is turned over to be turned over from vertical static hanging to a horizontal position, the fixing hook 12 on the link mechanism 14 is pulled by hands to stretch the link mechanism 14, due to the rotation of the fixing plate 2, the fixing hook 12 can be directly stretched to the right armrest 13 of the wheelchair through the original position of the fixing plate 2, and due to the fact that the width of the link mechanism 14 is shortened in a relative static state after the length of the link mechanism is stretched, the fixing hook 12 can be smoothly inserted into the fixing hook cavity 15 to complete fixation. At this time, the distance between the two connecting rod movable blocks 7 is shortened, the return spring 8 is compressed, the connecting rod mechanism 14 is tightened, the connecting rod movable block 7 close to the front end of the left armrest 1 of the wheelchair is limited to slide, but a sliding margin is left, the whole connecting rod mechanism 14 is pushed towards the direction of the fixed plate 2, and the edge of the connecting rod mechanism 14 is inserted into the groove 6 of the fixed plate 2, so that the wheelchair can be normally used.

Finally, it is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications are to be considered as the protection scope of the invention.

Claims

1. The utility model provides a wheelchair table device which characterized in that, including setting up the fixed establishment on the wheelchair handrail, fixed establishment is connected with link mechanism, link mechanism can with fixed establishment mutually supports to realize forming the table between the wheelchair handrail.

2. The wheelchair table device as claimed in claim 1, wherein the link mechanism comprises a plurality of rods having the same length, the rods are crossed in an X-shape and spliced at both ends and the middle, and the rods can move relatively to each other to achieve the telescopic function of the link mechanism.

3. The wheelchair table apparatus as claimed in claim 2, wherein the link mechanism further comprises a return spring and a rotating shaft, and the return spring and the rotating shaft are disposed on the rod member on one side of the link mechanism.

4. The wheelchair table device as claimed in claim 3, wherein the fixing mechanism comprises a connecting rod movable block and a rotating shaft fixing seat, the connecting rod movable block and the rotating shaft fixing seat are both arranged outside one of the wheelchair armrests, the rotating shaft fixing seat is connected with the rotating shaft, the connecting rod movable block is connected with the rod piece on the rotating shaft, the reset spring and the connecting rod movable block can slide along the shaft and rotate around the shaft on the rotating shaft, and a sliding space is arranged on the connecting rod movable block close to the front end of the wheelchair armrest.

5. The wheelchair table apparatus of claim 4 wherein the linkage further comprises a fixed hook disposed on the lever furthest from the axis of rotation.

6. The wheelchair table device as claimed in claim 5, wherein the fixing mechanism further comprises a fixing hook cavity used in cooperation with the fixing hook, the fixing hook cavity is disposed at an inner side of the wheelchair armrest without the rotating shaft, and a fixing hook baffle is disposed at an outer portion of the fixing hook cavity.

7. The wheelchair table device as claimed in claim 6, wherein the fixing mechanism further comprises a fixing plate, the fixing plate is disposed on the wheelchair armrest having the rotation shaft, the fixing plate has a width equal to that of the wheelchair armrest, and the fixing plate has a length equal to a distance between the wheelchair armrests.

8. The wheelchair table device as claimed in claim 7, wherein the fixing plate is connected with the wheelchair armrest by a pin shaft, the pin shaft has a rotation limiting function, and the fixing plate can rotate to be perpendicular to the two wheelchair armrests.

9. The wheelchair table apparatus as claimed in claim 8, wherein a U-shaped groove is provided on a side of the fixing plate facing the link mechanism, into which an edge of the link mechanism can be inserted.

10. The wheelchair table apparatus of claim 2 wherein the lever member has a tabletop plate disposed on a surface thereof.