CN208405134U - A kind of manual wheelchair - Google Patents

Abstract

The utility model discloses a kind of manual wheelchairs, the seat (1) of rear-wheel (2) there are two fixed, pedal (11) are equipped in the lower part of the seat (1) front end, fixing sleeve (12) are installed on the pedal (11), rotation is embedded with direction pipe (13) in the fixing sleeve (12), the upper end of the direction pipe (13) is installed with hand handle (15), lower end is equipped with connecting rod (14), and the left and right both ends of the connecting rod (14) are respectively installed with a front-wheel (3)；It is equipped with the first driving cog (41), the second driving cog (42) and third driving cog (43) in direction pipe (13), is equipped with the 4th driving cog (44) between two rear-wheels (2).The utility model is arranged the front-wheel that can be turned on the pipe of direction, and with four driving cogs of rocking bar manual transmission, structure is simple, and it is convenient to operate, and improves steering stationarity, improves manual transmission efficiency.

Description

A kind of manual wheelchair

Technical field

The utility model relates to wheelchair manufacturing field, in particular to a kind of manual wheelchair.

Background technique

For the handicapped people such as some patients, old person or deformity of limbs person, wheelchair is kind quite convenient, and Indispensable walking-replacing tool；In the streets existing wheelchair can generally be divided into manual wheelchair and two kinds of electric wheelchair, but Electric Motor Wheel The structure of chair is considerably complicated, and can not make such as manual wheelchair it is equivalent receive whole, be not available when power drain separately, it is general It says, manual wheelchair has the advantages that structure is simple and it is whole to be easy to equivalent receipts, however, user is with both hands force switching wheelchair main wheel Hand push wheel rim, and then rotate the main wheel of wheelchair, be unusual consuming physical strength, and turned in traveling process it is inconvenient, even if Universal wheel has been used, main wheel has with the hands been held again very arduously, is not easy to stablize again in gradient position, it is very inconvenient.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of convenient for turning, and can be in the hand that gradient position is come to a complete stop Wheelchair.

The technical solution of the utility model is as follows:

A kind of manual wheelchair is equipped with pedal in the lower part of the seat front end including the fixed seat there are two rear-wheel, It is installed with fixing sleeve on the pedal, rotation is embedded with direction pipe in the fixing sleeve, and the upper end of the direction pipe is installed with Hand handle, the lower end of direction pipe are fed through downwards pedal, and the traversing through end of direction pipe is fixed with connecting rod, the connecting rod Left and right both ends are respectively installed with a front-wheel；Fixed frame is equipped on the fixing sleeve, the fixed frame is threaded through in the pipe of direction, The top of the fixed frame is installed with the first driving cog, and rocking bar is equipped on first driving cog, and the direction pipe corresponds to rocking bar Position at be equipped with the first strip groove, the rocking bar wears out the first strip groove；Simultaneously Volleyball Association is installed in the lower part of the fixed frame Dynamic the second driving cog and third driving cog is equipped with fixed pin between second driving cog and third driving cog, described solid Rationed marketing ecto-entad level is fed through on steering tube and fixed frame, and is rotatablely connected with steering tube and fixed frame, the direction pipe The second strip groove is equipped at the position of corresponding fixed pin；

It is equipped with coupling rod between two rear-wheels, the 4th driving cog is equipped on the coupling rod, described first passes Movable tooth is connect with the second driving cog by the first chain, and the third driving cog is connect with the 4th driving cog by the second chain.

Using the above structure, two front-wheels are connect by connecting rod with direction pipe, and direction pipe is embedded on fixing sleeve, fixing sleeve It is installed on pedal, in this way, two front-wheels form a pair of independent deflecting roller, the disengaging with seat portion increases front and rear wheel Between wheelbase, improve steering stationarity；In addition, top in steering tube is arranged the first driving cog, on the first driving cog Equipped with rocking bar, two direction pipes are equipped with the first strip groove, and rocking bar wears out the first strip groove, i.e. wheelchair is rotated by direction pipe and realized It turns to, this will not be interfered with rocking bar band wheelchair traveling, also, when rocking bar and the cell wall of strip groove abutting, i.e. realization side To the limiting steering of pipe；Meanwhile the lower part of direction pipe is provided with the second driving cog and third driving cog to link side by side, after two It is also equipped with the 4th driving cog, rotating rocker, the rotation of the first driving cog between wheel, and is driven by the first chain drive to second Tooth, meanwhile, the third driving cog to link side by side also rotates, and gives the 4th driving cog by the second chain drive, finally drives rear-wheel Rotation is advanced；The second strip groove being arranged is convenient for retracting fixed pin, to install the second driving cog and third driving cog, occupies empty Between it is small, it is compact-sized, operate it is convenient.

For the ease of giving wheelchair brake, preferably, being equipped with brake handle in the hand handle, the rear-wheel, which is equipped with, to be stopped Vehicle block, the brake shoes are connect with brake handle.

For the ease of dismounting driving cog and replacement chain, preferably, in corresponding first driving cog of the direction pipe The first open slot is equipped at position, the length of first open slot is greater than the diameter of the first driving cog；The direction pipe is corresponding The second open slot is equipped at the position of second driving cog and third driving cog, the width of rebate of second open slot is greater than second Spacing between driving cog and third driving cog.

It for the ease of manual operation, prevents from skidding, preferably, being equipped with non-slip mat on the rocking bar.

In order to laborsaving, preferably, the diameter of first driving cog is identical as the diameter of the second driving cog (42), it is described The diameter of second driving cog is greater than the diameter of third driving cog, the diameter phase of the diameter and the 4th driving cog of the third driving cog Together.

The utility model has the advantages that the utility model is arranged the front-wheel that can be turned on the pipe of direction, and with the four of rocking bar manual transmission A driving cog, structure is simple, and it is convenient to operate, and improves steering stationarity, improves manual transmission efficiency.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the A direction view of Fig. 1.

Fig. 3 is the B direction view of Fig. 1.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing.

As shown in Fig. 1, Fig. 2 and Fig. 3, the utility model is made of the fixed seat 1 etc. there are two rear-wheel 2, in the seat The lower part of 1 front end of chair is equipped with pedal 11, is installed with fixing sleeve 12 on the pedal 11, rotates and be embedded in the fixing sleeve 12 There is direction pipe 13, the upper end of the direction pipe 13 is installed with hand handle 15, and brake handle 151 is equipped in the hand handle 15, described Rear-wheel 2 is equipped with brake shoes 22, and the brake shoes 22 is connect with brake handle 151.

The lower end of direction pipe 13 is fed through downwards pedal 11, and the traversing through end of direction pipe 13 is fixed with connecting rod 14, institute The left and right both ends for stating connecting rod 14 are respectively installed with a front-wheel 3；Fixed frame 121, the fixation are equipped on the fixing sleeve 12 Frame 121 is threaded through in direction pipe 13, and the top of the fixed frame 121 is installed with the first driving cog 41, in first driving cog 41 It is equipped with rocking bar 51, non-slip mat 52 is equipped on the rocking bar 51, the is equipped at the position of the corresponding rocking bar 51 of the direction pipe 13 One strip groove 71, the rocking bar 51 wear out the first strip groove 71.

It is installed with the second driving cog 42 and third driving cog 43 to link side by side in the lower part of the fixed frame 121, described Fixed pin is equipped between two driving cogs 42 and third driving cog 43, the fixed pin ecto-entad level is fed through steering tube 13 It is rotatablely connected on fixed frame 121, and with steering tube 13 and fixed frame 121, at the position of the corresponding fixed pin of the direction pipe 13 Equipped with the second strip groove 132.

It is equipped with coupling rod 21 between two rear-wheels 2, the 4th driving cog 44 is equipped on the coupling rod 21, it is described First driving cog 41 is connect with the second driving cog 42 by the first chain 71, and the third driving cog 43 and the 4th driving cog 44 are by The connection of two chains 72；The diameter of first driving cog 41 is identical as the diameter of the second driving cog 42, second driving cog 42 Diameter be greater than the diameter of third driving cog 43, the diameter of the third driving cog 43 is identical as the diameter of the 4th driving cog 44.

The first open slot 61, first open slot are equipped at the position of corresponding first driving cog 41 of the direction pipe 13 61 length is greater than the diameter of the first driving cog 41；The position of corresponding second driving cog 42 and third driving cog 43 of the direction pipe 13 It sets place and is equipped with the second open slot 62, the width of rebate of second open slot 62 is greater than the second driving cog 42 and third driving cog 43 Between spacing.

The application method of the utility model is as follows:

As shown in Fig. 1 to Fig. 3, the first driving cog 41 is rotatably arranged on the top of fixed frame 121, one end of fixed pin The side into 13 lower end of direction pipe is worn, and is successively sleeved and fixed the second driving cog 42 and third driving cog 43, the second transmission 43 keeping parallelism of tooth 42 and third driving cog, then the penetrating end level of fixed pin is worn out from the other side of direction pipe 13, make Fixed pin rotation is threaded through on direction pipe 13, meanwhile, guarantee the first chain between the first driving cog 41 and the second driving cog 42 71 keep vertical configuration.

Two front-wheels 3 are connect by connecting rod 14 with direction pipe 13, and direction pipe 13 is embedded on fixing sleeve 12, and fixing sleeve 12 is solid It is located on pedal 11, in this way, two front-wheels 3 form a pair of independent deflecting roller, the disengaging with 1 part of seat increases front-wheel 3 Wheelbase between rear-wheel 2 improves steering stationarity.

In addition, the two sides on the first driving cog 41 are equipped with rocking bar 51, and the top of direction pipe 13 corresponds to two sides rocking bar 51 Position at be equipped with the first strip groove 131, rocking bar 51 wears out the first strip groove 131 of corresponding end, i.e., wheelchair is by hand handle 15 It driving direction pipe 13 to rotate, and drives two front-wheels 3 to realize and turn to, this will not be interfered with rocking bar 51 with wheelchair traveling, Also, when rocking bar 51 and the cell wall of the first strip groove abut, that is, realize the limiting steering of direction pipe 13；Meanwhile fixed frame 121 Lower part is provided with the second driving cog 42 and third driving cog 43 to link side by side, and the 4th transmission is also equipped between two rear-wheels 2 Tooth 44, rotating rocker 51, the rotation of the first driving cog 41, and be driven by the first chain 71 to the second driving cog 42, meanwhile, and Volleyball Association Dynamic third driving cog 43 also rotates, and is driven by the second chain 72 to the 4th driving cog 44, finally drives the rotation row of rear-wheel 2 Into, occupy little space, it is compact-sized, operate it is convenient.

In traveling process, in order to keep turning speed or guarantee the stabilization of turn curvature, occupant's one hand handle of energy holds hand 15, another hand handle holds rocking bar 51, it is ensured that safety in utilization；Or at gradient position, brake handle 151 can be pinched, Brake shoes 22 brakes rear-wheel 2, front-wheel 3 can also be driven to turn to rotation direction pipe 13, makes axial direction where wheelchair and the gradient Bevel direction keeps vertical, realizes that the gradient is static；Skidding when non-slip mat 52 is also avoided that manual operation rocking bar 51.

When needing to change, fixed pin can be knocked out by the second strip groove 132, change the second driving cog 42 or third transmission Tooth, while the first chain 71 and the second chain 72 can be also replaced, the setting of the first open slot 61 and the second open slot 62, on the one hand Convenient for observing the service condition of transmission parts, on the other hand, the main needs for being easy for holding component manually during changeing.

The non-description section of the utility model is consistent with the prior art, and therefore not to repeat here.

The above is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all benefits The equivalent structure made by the utility model specification and accompanying drawing content is directly or indirectly used in other relevant technology necks Domain, similarly within the scope of patent protection of the utility model.

Claims (5)

1. a kind of manual wheelchair, it is characterised in that: the seat (1) of rear-wheel (2) there are two fixed, before the seat (1) The lower part at end is equipped with pedal (11), and fixing sleeve (12) are installed on the pedal (11), the rotation in the fixing sleeve (12) It is embedded with direction pipe (13), the upper end of the direction pipe (13) is installed with hand handle (15), and the lower end of direction pipe (13) is worn downwards If crossing pedal (11), the traversing through end of direction pipe (13) is fixed with connecting rod (14), and the left and right both ends of the connecting rod (14) are each It is installed with a front-wheel (3)；Fixed frame (121) are equipped on the fixing sleeve (12), the fixed frame (121) is threaded through direction It manages in (13), the top of the fixed frame (121) is installed with the first driving cog (41), is equipped with and shakes on first driving cog (41) Bar (51), the direction pipe (13) correspond to and are equipped with the first strip groove (131) at the position of rocking bar (51), and the rocking bar (51) wears First strip groove (131) out；The second driving cog (42) to link side by side is installed in the lower part of the fixed frame (121) and third passes Movable tooth (43) is equipped with fixed pin between second driving cog (42) and third driving cog (43), and the fixed pin is by extroversion Interior level is fed through on steering tube (13) and fixed frame (121), and is rotatablely connected with steering tube (13) and fixed frame (121), institute It states and is equipped with the second strip groove (132) at the position of the corresponding fixed pin of direction pipe (13)；

Coupling rod (21) are equipped between two rear-wheels (2), the 4th driving cog (44) is equipped on the coupling rod (21), First driving cog (41) is connect with the second driving cog (42) by the first chain (71), the third driving cog (43) and the 4th Driving cog (44) is connected by the second chain (72).

2. a kind of manual wheelchair according to claim 1, it is characterised in that: be equipped with brake handle on the hand handle (15) (151), the rear-wheel (2) is equipped with brake shoes (22), and the brake shoes (22) connect with brake handle (151).

3. a kind of manual wheelchair according to claim 1, it is characterised in that: in corresponding first transmission of direction pipe (13) The first open slot (61) are equipped at the position of tooth (41), the length of first open slot (61) is greater than the first driving cog (41) Diameter；The second open slot is equipped at the position of the direction pipe (13) corresponding second driving cog (42) and third driving cog (43) (62), between the width of rebate of second open slot (62) is greater than between the second driving cog (42) and third driving cog (43) Away from.

4. a kind of manual wheelchair according to claim 1, it is characterised in that: be equipped with non-slip mat on the rocking bar (51) (52)。

5. a kind of manual wheelchair according to claim 3, it is characterised in that: the diameter of first driving cog (41) and The diameter of two driving cogs (42) is identical, and the diameter of second driving cog (42) is greater than the diameter of third driving cog (43), described The diameter of third driving cog (43) is identical as the diameter of the 4th driving cog (44).