CN211884304U - Guide rod type widening wheelchair guide rod extending mechanism - Google Patents

Abstract

The utility model discloses a guide rod type widening wheelchair guide rod lengthening mechanism, which comprises a first limiting plate, a second limiting plate, an adjusting rod, an extension rod, a driving wheel and a driving wheel, wherein the driving wheel can be driven to rotate by manually rotating an adjusting disc, the driving wheel is driven to rotate by the driving wheel, the adjusting rod is driven to rotate by mutual driving between the driving wheels, the adjusting rod and the extension rod are driven to mutually drive by twisting threads between the adjusting rod and the extension rod, so that reverse movement is carried out between the adjusting rod and the extension rod, the synchronous adjustment of the distance between the limiting plates is realized, the width adjustment of the structure between wheelchairs is achieved, the situation that corresponding structural parts need to be completely replaced when the wheelchairs are widened is avoided, the transmission parts can be sealed and protected by a fixed shell and an extension shell, the parts are prevented from being exposed outside and damaged, the installation and the fixation of the wheelchair, the flexibility and stability of use are increased.

Description

Guide rod type widening wheelchair guide rod extending mechanism

Technical Field

The utility model relates to a wheelchair auxiliary device technical field specifically is a guide bar type widens wheelchair guide arm extension mechanism.

Background

The wheelchair is an important rehabilitation tool, the wheelchair is not only a walking tool for physically disabled persons and mobility-handicapped persons, but also more importantly enables the physically disabled persons and the mobility-handicapped persons to exercise and participate in social activities by means of the wheelchair.

The wheelchair that uses at present only has folding function, and generally horizontal structure all is fixed, consequently when the width of needs to the wheelchair is reformed transform, need all change the extension with the corresponding structure of wheelchair, just so increased the degree of difficulty that the wheelchair widened and widened the cost of reforming transform, reduced and widened the whole efficiency of reforming transform.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a guide bar type widens wheelchair guide arm extension mechanism to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a wheelchair guide arm extension mechanism is widened to guide bar formula, includes first limiting plate, a side surface top-down of first limiting plate has seted up in proper order and has rotated the groove, the inboard in rotation groove all rotates through the bearing and installs the regulation pole, fixed the cover has connect the action wheel on the regulation pole in first limiting plate outside, and all fixed the cover has connect the drive wheel on the regulation pole of action wheel one side, between the drive wheel and all intermeshing with the action wheel, the outer end of adjusting the pole all the movable sleeve be equipped with the extension rod, the outer end of extension rod all fixed mounting have the second limiting plate.

As a further aspect of the present invention: the first limiting plate on one side of the driving wheel is rotatably provided with an adjusting disc through a rotating rod, and an adjusting handle is fixedly arranged on the outer edge of one side of the adjusting disc.

As a further aspect of the present invention: fixed mounting has a fixed shell on the first limiting plate in the outside of regulation pole, the outer department of following of fixed shell has encircleed and has seted up the grafting chamber, the inboard movable mounting in grafting chamber has the extension shell, there is the fixed gate a side surface of fixed shell through hinge movable mounting, the grafting chamber has been seted up to the inboard of fixed gate, and the inboard movable mounting in grafting chamber has the extension door.

As a further aspect of the present invention: one side of the extension door is fixedly provided with a lock seat through a bolt, and a lock catch is fixedly arranged on the second limiting plate corresponding to the lock seat.

As a further aspect of the present invention: the surface of adjusting the pole and the inner wall of extension rod all are provided with positive screw thread and back-off thread, and the screw thread that sets up on two adjacent regulation poles and the extension rod all is different.

As a further aspect of the present invention: and a handle is fixedly arranged on one side surface of the extension door through a bolt.

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

1. when need widen the transformation during operation to the wheelchair, at first the artifical adjusting disk that rotates of accessible drives the action wheel and rotates, rotate through action wheel drive wheel, and drive the regulation pole through mutual drive between the drive wheel and rotate, through adjusting the screw thread twist mutual drive between pole and the extension rod, thereby carry out reverse motion between drive regulation pole and the extension rod, realize the synchro-control of distance between the limiting plate, reach the width regulation of structure between the wheelchair, need whole corresponding structural component of changing when having avoided widening the wheelchair, the degree of difficulty and the cost of widening the transformation have been reduced.

2. The transmission component can be sealed and protected by the fixed shell and the extension shell, the component is prevented from being exposed to the outside and damaged, meanwhile, the installation and fixation of the seat board and the backrest of the wheelchair are prevented, and the fixed shell and the extension shell can slide relatively, so that the flexibility and the stability of use are increased.

Drawings

FIG. 1 is a front view of a guide bar type widening wheelchair guide bar extending mechanism.

Fig. 2 is a schematic view of the connection structure of the transmission part of the guide bar type widening wheelchair guide bar extending mechanism.

FIG. 3 is a side view of a portion of a first stop plate of a guide bar type widening wheelchair guide bar extension mechanism

FIG. 4 is a schematic view of a connecting structure of a fixed housing and an extension housing of a guide bar type widening wheelchair guide bar extending mechanism.

Shown in the figure: 1. fixing the housing; 2. a fixed door; 3. an extension housing; 4. an extension door; 5. a lock seat; 6. locking; 7. a handle; 8. a first limit plate; 9. a rotating rod; 10. a driving wheel; 11. adjusting the grip; 12. an adjusting disk; 13. a positive thread; 14. a driving wheel; 15. adjusting a rod; 16. an extension rod; 17. a rotating groove; 18. a bearing; 19. reverse threads; 20. a second limiting plate; 21. a plug cavity.

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 is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-4, in an embodiment of the present invention, a guide bar type widening wheelchair guide bar extending mechanism includes a first limiting plate 8, a rotating groove 17 is sequentially formed on a side surface of the first limiting plate 8 from top to bottom, an adjusting rod 15 is rotatably mounted on an inner side of the rotating groove 17 through a bearing 18, a driving wheel 10 is fixedly sleeved on the adjusting rod 15 at an outermost side of the first limiting plate 8, driving wheels 14 are fixedly sleeved on the adjusting rod 15 at one side of the driving wheel 10, the driving wheels 14 are mutually engaged with each other and with the driving wheel 10, an extending rod 16 is movably sleeved on an outer end of the adjusting rod 15, the driving wheel 10 can be driven to rotate by manually rotating an adjusting plate 12, the driving wheels 14 are driven to rotate by the driving wheels 10, the adjusting rod 15 is driven to rotate by mutual driving between the driving wheels 14, and the adjusting, thereby carry out reverse motion between drive adjusting lever 15 and the extension rod 16, realize the synchro-control of distance between the limiting plate, reach the width regulation of structure between the wheelchair, need all to change corresponding constitutional part when having avoided widening the wheelchair, the degree of difficulty and the cost of widening the transformation have been reduced, the all fixed mounting in outer end of extension rod 16 has second limiting plate 20, rotate through bull stick 9 on the first limiting plate 8 of one side of action wheel 10 and install adjustment disk 12, and fixed mounting is followed outward to one side of adjustment disk 12 and adjusts handle 11, can make to adjust and extend the in-process and rotate convenient laborsaving more.

A fixed shell 1 is fixedly arranged on a first limiting plate 8 at the outer side of an adjusting rod 15, an inserting cavity 21 is arranged at the outer edge of the fixed shell 1 in a surrounding mode, an extending shell 3 is movably arranged at the inner side of the inserting cavity 21, meanwhile, a transmission part is sealed and protected through the fixed shell 1 and the extending shell 3, the part is prevented from being exposed outside and damaged, meanwhile, the installation and the fixation of a wheelchair seat plate and a backrest are prevented, the fixed shell 1 and the extending shell 3 can slide and adjust in real time along with the widening distance, a fixed door 2 is movably arranged on the surface of one side of the fixed shell 1 through a hinge, an inserting cavity 21 is arranged at the inner side of the fixed door 2, an extending door 4 is movably arranged at the inner side of the inserting cavity 21, a lock seat 5 is fixedly arranged at one side of the extending door 4 through a bolt, a lock catch 6 is fixedly arranged on a second limiting plate 20 corresponding to the lock seat 5, a positive, and the threads arranged on the two adjacent adjusting rods 15 and the extending rod 16 are different, and the handle 7 is fixedly arranged on the surface of one side of the extending door 4 through a bolt, so that the internal transmission part can be conveniently opened in real time for inspection and maintenance.

The utility model discloses a theory of operation is: when the wheelchair adopts the mechanism as a base and backrest supporting structure part, when the wheelchair needs to be widened and reformed, firstly, the driving wheel 10 can be driven to rotate by manually rotating the adjusting disc 12, the driving wheel 14 is driven to rotate by the driving wheel 10, the adjusting rod 15 is driven to rotate by mutual driving between the driving wheels 14, and the adjusting rod 15 and the extending rod 16 are mutually driven by thread twisting between the adjusting rod 15 and the extending rod 16, so that the reverse movement between the adjusting rod 15 and the extending rod 16 is driven, the synchronous adjustment of the distance between the limiting plates is realized, the width adjustment of the structure between the wheelchairs is achieved, the situation that corresponding structural parts need to be completely replaced when the wheelchair is widened is avoided, the difficulty and the cost of the reformation are reduced, meanwhile, the transmission part is sealed and protected by the fixed shell 1 and the extending shell 3, the part is prevented from being exposed to the outside and damaged, and the fixed housing 1 and the extension housing 3 can be slidably adjusted in real time with the widened distance.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a wheelchair guide arm extension mechanism is widened to guide bar formula, includes first limiting plate (8), its characterized in that: rotation groove (17) have been seted up in proper order to a side surface top-down of first limiting plate (8), the inboard of rotating groove (17) all rotates through bearing (18) and installs regulation pole (15), fixed the cup jointing has action wheel (10) on regulation pole (15) in first limiting plate (8) outside, and all fixed the having cup jointed drive wheel (14) on regulation pole (15) of action wheel (10) one side, all intermeshing between drive wheel (14) and with action wheel (10), the outer end of adjusting pole (15) all the movable sleeve be equipped with extension rod (16), the outer end of extension rod (16) all fixed mounting have second limiting plate (20).

2. The guide bar type widening wheelchair guide bar extending mechanism as claimed in claim 1, wherein: an adjusting disc (12) is rotatably installed on the first limiting plate (8) on one side of the driving wheel (10) through a rotating rod (9), and an adjusting grip (11) is fixedly installed on the outer edge of one side of the adjusting disc (12).

3. The guide bar type widening wheelchair guide bar extending mechanism as claimed in claim 1, wherein: fixed mounting has fixed shell (1) on the first limiting plate (8) in the outside of adjusting pole (15), the outer department of following of fixed shell (1) encircles and has seted up grafting chamber (21), the inboard movable mounting in grafting chamber (21) has extension shell (3), there is fixed door (2) on a side surface of fixed shell (1) through hinge movable mounting, grafting chamber (21) have been seted up to the inboard of fixed door (2), and the inboard movable mounting in grafting chamber (21) has extension door (4).

4. The guide bar type widening wheelchair guide bar extending mechanism as claimed in claim 3, wherein: one side of extension door (4) has lock seat (5) through bolt fixed mounting, and fixed mounting has hasp (6) on second limiting plate (20) that lock seat (5) correspond.

5. The guide bar type widening wheelchair guide bar extending mechanism as claimed in claim 1, wherein: the surface of the adjusting rod (15) and the inner wall of the extending rod (16) are provided with a positive thread (13) and a negative thread (19), and the threads arranged on the two adjacent adjusting rods (15) and the extending rod (16) are different.

6. The guide bar type widening wheelchair guide bar extending mechanism as claimed in claim 3, wherein: and a handle (7) is fixedly arranged on one side surface of the extension door (4) through a bolt.

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