CN212699379U

CN212699379U - Ladder climbing machine for patient with mobility inconvenience

Info

Publication number: CN212699379U
Application number: CN202021124984.1U
Authority: CN
Inventors: 杨树庄
Original assignee: Hangzhou Shuren Technology Co ltd
Current assignee: Hangzhou Shuren Technology Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-03-16
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses a ladder stand machine for patients with mobility disabilities, which comprises a frame, a backrest, a cushion, front wheels, rear wheels and a base, wherein the backrest, the cushion, the front wheels, the rear wheels and the base are arranged on the frame; the lifting device is arranged on the base and located below the cushion, and the lifting device is matched with the rear wheel and can be matched with the step surface of the stair. The utility model discloses a cat ladder machine is provided with elevating gear and brake equipment, and when using cat ladder machine to go up and down stairs, elevating gear can play certain supporting role when going up and down stairs, and then the stability of cat ladder machine when being convenient for improve going up and down stairs. And brake equipment can effectually brake the rear wheel, and the rear wheel can not take place to rotate when going upstairs and downstairs, can effectively improve the security of whole cat ladder machine.

Description

Ladder climbing machine for patient with mobility inconvenience

Technical Field

The utility model relates to the field of medical equipment auxiliary equipment, in particular to a ladder climbing machine for a patient with mobility disability.

Background

In recent years, countries in the world have entered an aging society, and the aging of population is accompanied by problems such as medical care and care due to aging, and the government is under urgent need to solve the problems, and therefore, governments have started policies such as senior citizen schools, senior citizen care and open foreign nursing, and therefore, the social phenomena are due to the problems, but the problems are more: the old need to ride instead of walk by a wheelchair or a disabled vehicle because of the old or the disease, but if the home does not have an elevator or the elevator is too narrow, the old and the patient who rely on the wheelchair or the disabled vehicle to move can only be closed indoors but cannot go out, the old and the patient stay at home for a long time, not only the body and the mind are affected, but also the feelings and even the illness aggravation are easy to happen because of less interaction with other people, and when the old and the patient need to go out or see a doctor, a plurality of family people are required to assist together, the wheelchair needs to be lifted up and down when the old and the patient are helped to take the wheelchair up and down the building, and the old and the disabled person have a heavy burden for the family (the care person);

therefore, a ladder climbing machine which is convenient to use, convenient to operate, safe and reliable is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a convenient to use, convenient operation and safe and reliable's handicapped patient cat ladder machine can solve one of above-mentioned problem at least.

According to one aspect of the utility model, the ladder climbing machine for the patient with the handicapped action comprises a frame, a backrest, a cushion, front wheels, rear wheels and a base, wherein the backrest, the cushion, the front wheels, the rear wheels, the base and the brake device are arranged on the frame; the lifting device is arranged on the base and located below the cushion, and the lifting device is matched with the rear wheel and can be matched with the step surface of the stair.

Therefore, the utility model discloses a cat ladder machine is provided with elevating gear and brake equipment, and when using cat ladder machine to go up and down stairs, elevating gear can play certain supporting role when going up and down stairs, and then is convenient for improve the stability of cat ladder machine when going up and down stairs. And brake equipment can effectually brake the rear wheel, and the rear wheel can not take place to rotate when going upstairs and downstairs, can effectively improve the security of whole cat ladder machine. Therefore, the utility model discloses a cat ladder machine convenient to use, convenient operation and safe and reliable.

In some embodiments, the brake device includes a lever driving wheel assembly, a brake pad assembly, a fixing plate and a linkage plate, the rear wheel is rotatably mounted on the fixing plate, the fixing plate is mounted on the base, the lever driving wheel assembly is rotatably mounted on the fixing plate through a first pin shaft, the brake pad assembly is rotatably mounted on the fixing plate through a second pin shaft and matched with the rear wheel, one end of the linkage plate is hinged to the brake pad assembly, the other end of the linkage plate is hinged to the lever driving wheel assembly, and the brake pad assembly can brake the rear wheel under the driving of the lever driving wheel assembly. Therefore, the working principle of the brake device is as follows: when the brake assembly runs on a stable road surface, the brake assembly cannot limit the rear wheel, and at the moment, the wheel of the lever driving wheel assembly can roll on the road surface like the front wheel and the rear wheel; when using the cat ladder machine with handicapped people's propelling movement to stair department, the wheel of lever drive wheel subassembly can fall down, and then drives brake block subassembly through the linkage piece and carry out spacing brake to the rear wheel, and the rear wheel just can't rotate this moment, and when going upstairs and downstairs promptly, the rear wheel can not take place to rotate, and then effectively improves the security of whole cat ladder machine.

In some embodiments, the brake block assembly includes a brake block, a brake block fixing seat and a fixed auxiliary rod, the brake block is installed on the brake block fixing seat and matched with the rear wheel, one end of the fixed auxiliary rod is installed on the brake block fixing seat, the other end of the fixed auxiliary rod and the brake block fixing seat are installed on the fixing plate through a second pin shaft, the middle portions of the brake block fixing seat and the fixed auxiliary rod are connected through a fourth pin shaft, the fourth pin shaft is in sliding fit with the fixing plate, one end of the linkage block is sleeved on the fourth pin shaft, and the other end of the linkage block is hinged to the lever driving. Therefore, the utility model discloses a brake block subassembly's theory of operation does: the wheel of the lever driving wheel assembly falls down to drive the linkage piece to pull the fourth pin shaft to move downwards, so that the brake pad fixing seat and the fixed auxiliary rod are driven to rotate together by taking the second pin shaft as a rotating shaft, the brake pad is driven to swing and act on the surface of the rear wheel, and the rear wheel is subjected to limiting braking.

In some embodiments, the fixing piece is provided with a limiting groove, and the fourth pin shaft is matched with the limiting groove. Therefore, the linkage piece can drive the fourth pin shaft to slide in the limiting groove, and the movement is stable.

In some embodiments, one end of the linkage piece is sleeved on the fourth pin shaft, and the other end of the linkage piece is connected with the lever driving wheel assembly through the third pin shaft.

In some embodiments, the lever driving wheel assembly includes a first support frame and a lever driving wheel, the lever driving wheel is rotatably mounted at both ends of the first support frame, the first support frame is connected with the fixing plate by a first pin shaft, and the first support frame is connected with the linkage plate by a third pin shaft. Therefore, when the previous lever driving wheel in the advancing direction falls down, the next lever driving wheel can be driven to rise, but no matter which lever driving wheel falls down, the fourth pin shaft can be driven to pull down the linkage plate, and then the brake plate is driven to brake the rear wheel.

In some embodiments, the brake device further includes a tension spring, one end of the tension spring is connected with the first pin shaft, and the other end of the tension spring is connected with the fourth pin shaft. Therefore, the tension spring can play the roles of resetting and buffering.

In some embodiments, the lifting device comprises a driving part, a transmission mechanism and a traveling mechanism, the driving end of the driving part is in power connection with the transmission mechanism, the traveling mechanism is installed on the transmission mechanism, the transmission mechanism is in transmission connection with the traveling mechanism, the traveling mechanism comprises a second supporting frame and traveling rollers, the traveling rollers are rotatably installed at two ends of the second supporting frame, the second supporting frame is in transmission fit with the transmission mechanism, and the traveling rollers can be matched with the surface of the stair under the driving of the driving part. Therefore, the working principle of the lifting device is as follows: when using the cat ladder machine with handicapped people propelling movement to stair department, driving piece drive mechanism work, drive mechanism drives running gear's walking gyro wheel and rotates to the surface of first order stair, and at this moment, this walking gyro wheel plays supporting role, and when going upstairs and downstairs, two walking gyro wheels at second support frame both ends are in turn with stair surface contact, support in turn, and then accomplish the cat ladder walking. The utility model discloses can realize semi-automatic cat ladder with the user cooperation under the drive of driving piece, convenient operation, the security is high.

In some embodiments, the transmission mechanism comprises at least one group of gear transmission assemblies and at least one output spindle, the gear transmission assemblies are in power connection with the driving piece, the output spindle is in transmission connection with the gear transmission assemblies, and the second support frame of the traveling mechanism is sleeved on the output spindle. Therefore, the transmission mechanism adopts gear transmission, and is low in cost and stable in operation.

In some embodiments, there are two traveling mechanisms, and the two traveling mechanisms are respectively sleeved on two end parts of the output main shaft. Therefore, the two traveling mechanisms operate more stably and powerfully.

In some embodiments, the gear transmission assemblies are three groups, which are respectively a first gear transmission assembly, a second gear transmission assembly and a third gear transmission assembly, the first gear transmission assembly includes a first input driven gear, the second gear transmission assembly includes a second input driving gear and a second input driven gear, the third gear transmission assembly includes a third input driving gear and a third input driven gear, the driving end of the driving member is in transmission connection with the first input driven gear, the first input driven gear is engaged with the second input driving gear, the second input driving gear is engaged with the second input driven gear, the second input driven gear is engaged with the third input driving gear, the third input driving gear is engaged with the third input driven gear, and the third input driven gear is sleeved on the periphery of the output spindle. Therefore, the utility model discloses a elevating gear's theory of operation does: the driving piece drives the first-level input driven gear to rotate, the first-level input driven gear drives the second-level input driving gear to rotate, the second-level input driving gear drives the second-level input driven gear to rotate, the second-level input driven gear drives the third-level input driving gear to rotate, the third-level input driving gear drives the third-level input driven gear to rotate, the third-level input driven gear drives the output main shaft to rotate, and then the traveling mechanism sleeved on the output main shaft is driven to rotate to be matched with a stair step surface to complete crawling ladder work.

In some embodiments, the ladder climbing machine for the patient with mobility disabilities further comprises a power supply device, the power supply device is installed at the bottom of the seat cushion, and the power supply device is electrically connected with the lifting device.

The utility model has the advantages that:

the utility model discloses a cat ladder machine is provided with elevating gear and brake equipment, and when using cat ladder machine to go up and down stairs, elevating gear can play certain supporting role when going up and down stairs, and then the stability of cat ladder machine when being convenient for improve going up and down stairs. And brake equipment can effectually brake the rear wheel, and the rear wheel can not take place to rotate when going upstairs and downstairs, can effectively improve the security of whole cat ladder machine. Therefore, the utility model discloses a cat ladder machine convenient to use, convenient operation and safe and reliable.

Drawings

Fig. 1 is a schematic perspective view of a ladder climbing machine for a patient with mobility disabilities according to an embodiment of the present invention;

FIG. 2 is a schematic side view of the stair climbing machine for a patient with mobility difficulty shown in FIG. 1;

FIG. 3 is a schematic structural view of a base portion of the stair climbing machine for a handicapped patient shown in FIG. 1;

FIG. 4 is a schematic perspective view of a portion of the base portion shown in FIG. 3;

FIG. 5 is a rear view of the base portion of FIG. 4;

FIG. 6 is a schematic structural view of a brake device of the ladder climbing machine shown in FIG. 3;

FIG. 7 is a second schematic structural view of a braking device of the ladder climbing machine shown in FIG. 3;

FIG. 8 is a perspective view of a portion of the brake apparatus shown in FIG. 7

Fig. 9 is a schematic perspective view of the lifting device of the stair climbing machine for the handicapped patient shown in fig. 1;

FIG. 10 is a side view of the lifting device shown in FIG. 9;

FIG. 11 is a schematic cross-sectional view taken along line A-A of the elevator apparatus shown in FIG. 10;

FIG. 12 is a schematic perspective view of a portion of the elevator assembly shown in FIG. 9;

fig. 13 is a schematic structural diagram of a power supply device of the stair climbing machine for the patient with mobility disability shown in fig. 1.

Reference numerals in FIGS. 1 to 13: 1-a frame; 2-backrest; 3-cushion; 4-front wheels; 5-rear wheel; 6-a base; 7-a brake device; 8-a lifting device; 9-upper handrail; 10-lower armrest; 20-a power supply device; 30-a foot pedal; 51-a rotating shaft; 71-a lever drive wheel assembly; 72-a brake pad assembly; 73-a fixing sheet; 74-linkage piece; 75-a tension spring; 76-a first pin; 77-a second pin; 78-a third pin; 81-a driving member; 82-a transmission mechanism; 83-a running gear; 201-a housing; 202-a storage battery; 203-power supply jack; 711-first support frame; 712-lever drive wheel; 721-brake pads; 722-brake block fixing seat; 723-fixing the secondary rod; 724-a fourth pin shaft; 731-a limit groove; 821-a geared assembly; 822-output spindle; 823-main shaft fixing ring; 831-second support frame; 832-walking rollers; 7111-a first support sheet; 8211-primary gear drive assembly; 8212-two-stage gear drive assembly; 8213-three-stage gear drive assembly; 8311-a second support sheet; 8211 a-primary input driven gear; 8212 a-secondary input drive gear; 8212 b-secondary input driven gear; 8213 a-three-level input driving gear; 8213 b-three-stage input driven gear.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 to 13 schematically show a stair climbing machine for a handicapped patient according to an embodiment of the present invention.

As shown in fig. 1 to 3, the stair climbing machine for the patient with the handicapped comprises a frame 1, and a backrest 2, a cushion 3, a front wheel 4, a rear wheel 5 and a base 6 which are installed on the frame 1. The cushion 3 is mounted above the base 6, and the rear wheels 5 are mounted on both sides of the base 6. The front wheel 4 is positioned in front of the rear wheel 5, and the lower end surfaces of the two are positioned on the same horizontal line.

The ladder climbing machine of the embodiment further comprises a brake device 7 and a lifting device 8. The brake device 7 is mounted on the base 6 and matched with the rear wheel 5 for braking the rear wheel 5. Elevating gear 8 installs in base 6 and is located the below of cushion 3, and elevating gear 8 cooperatees with rear wheel 5 and can cooperate with the stair step face.

As shown in fig. 4 to 8, the brake apparatus 7 of the present embodiment includes a lever driving wheel assembly 71, a brake pad assembly 72, a fixing plate 73, and a link plate 74. The rear wheel 5 is rotatably attached to the fixing plate 73, and the rear wheel 5 of the present embodiment is rotatably attached to the fixing plate 73 via the rotating shaft 51. The fixing piece 73 is attached to the base 6 by a fastener such as a screw. The lever drive wheel assembly 71 is rotatably mounted to the fixing plate 73 by a first pin 76. The brake pad assembly 72 is rotatably mounted to the fixing plate 73 by a second pin 77 and cooperates with the rear wheel 5. One end of the linkage plate 74 is hinged to the brake pad assembly 72 and the other end is hinged to the lever drive wheel assembly 71. The brake pad assembly 72 is capable of braking the rear wheel 5 under the actuation of the lever drive wheel assembly 71.

The brake pad assembly 72 includes a brake pad 721, a brake pad holder 722, and a fixed secondary rod 723. The brake pad 721 is installed on the brake pad holder 722 and cooperates with the rear wheel 5. One end of the fixing auxiliary rod 723 is mounted to the brake pad fixing seat 722, and the other end is mounted to the fixing plate 73 together with the brake pad fixing seat 722 through the second pin 77. The middle parts of the brake pad fixing seat 722 and the fixing auxiliary rod 723 are connected through a fourth pin shaft 724, and the fourth pin shaft 724 is in sliding fit with the fixing plate 73. One end of the linkage plate 74 is sleeved on the fourth pin shaft 724, and the other end is hinged with the lever driving wheel assembly 71. Therefore, the working principle of the brake pad assembly 72 of the present invention is: the wheel of the lever driving wheel assembly 71 will fall down to drive the linkage plate 74 to pull the fourth pin 724 to move downward, and further drive the brake pad fixing seat 722 and the fixed auxiliary rod 723 to rotate together by using the second pin 77 as a rotating shaft, and drive the brake pad 721 to swing and act on the surface of the rear wheel 5, so as to perform limit braking on the rear wheel 5.

An arc-shaped limiting groove 731 is formed in the fixing plate 73, and the fourth pin shaft 724 is matched with the limiting groove 731. Therefore, the linkage piece 74 can drive the fourth pin 724 to slide in the limiting groove 731, and the movement is stable.

One end of the linkage plate 74 is sleeved on the fourth pin 724, and the other end is connected with the lever driving wheel assembly 71 through the third pin 78.

The lever drive wheel assembly 71 includes a first support frame 711 and a lever drive wheel 712. The lever driving wheels 712 are rotatably installed at both ends of the first support frame 711. The first support frame 711 is connected to the fixing plate 73 by a first pin 76, and the first support frame 711 is connected to the linkage plate 74 by a third pin 78. Therefore, when the previous lever driving wheel 712 in the forward direction falls, the next lever driving wheel 712 is driven to rise, but when any lever driving wheel 712 falls, the link plate 74 is driven to pull down the fourth pin 724, and the brake plate 721 is driven to brake the rear wheel 5.

The first support frame 711 includes two first support sheets 7111, and the two first support sheets 7111 are connected by a fastener such as a screw. The lever driving wheels 712 are rotatably attached to both end portions of the first support sheet 7111 by pins, rivets, or the like and are located outside the first support sheet 7111.

The brake device 7 of the present embodiment further includes a tension spring 75. One end of the tension spring 75 is connected to the first pin 76, and the other end is connected to the fourth pin 724. The tension spring 75 is located between the first support sheets 7111. Thus, the tension spring 75 can perform the reset and buffer functions.

The number of the fixing pieces 73 in the present embodiment is two, and the two fixing pieces 73 are respectively provided outside the two first supporting pieces 7111. The first pin 76, the second pin 77 and the fourth pin 724 all penetrate through the two fixing pieces 73.

Since the number of the rear wheels 5 is two in the present embodiment, the number of the brake devices 7 is also two. The two brake devices 7 are respectively arranged on the left side and the right side of the base 6 and are respectively matched with the two rear wheels 5.

The operating principle of the brake device 7 of the present embodiment is:

when the stair climbing machine runs on a stable road surface, the lower end faces of the two lever driving wheels 712 of each brake device 7 are positioned on the same horizontal plane with the front wheel 4 and the rear wheel 5, at the moment, the brake pads 721 are far away from the rear wheel 5, namely, the brake pad assembly 72 cannot limit the rear wheel 5, and at the moment, the wheels of the lever driving wheel assembly 71 can roll on the road surface like the front wheel 4 and the rear wheel 5;

as shown in fig. 8, when a user uses the stair climbing machine to push a handicapped person to a stair, no matter whether the user climbs up or down, the front lever driving wheel 712 (the lever driving wheel 712 on the left side of fig. 8) falls, the lever driving wheel 712 (the lever driving wheel 712 on the left side of fig. 8) pulls the linkage plate 74 downwards, the linkage plate 74 drives the fourth pin 724 originally located at the top end of the limiting groove 731 to slide downwards to the bottom end, the fourth pin 724 drives the brake plate fixing seat 722 and the fixing auxiliary rod 723 to rotate along the second pin 77 on the right end, and further drives the brake plate 721 on the left end to move downwards, the brake plate 721 acts on the surface of the rear wheel 5, so that the rear wheel 5 can be subjected to limiting braking, at this time, the rear wheel 5 cannot rotate, that is, when the user climbs up or down, the rear wheel 5 cannot rotate, and further the safety of.

As shown in fig. 9 to 12, the lifting device 8 of the present embodiment includes a driving member 81, a transmission mechanism 82, and a traveling mechanism 83. The driving end of the driving member 81 is power-connected to the transmission mechanism 82, and the traveling mechanism 83 is mounted to the transmission mechanism 82. The transmission mechanism 82 is in transmission connection with the running mechanism 83. The traveling mechanism 83 includes a second support frame 831 and a traveling roller 832. The walking rollers 832 are rotatably mounted at two ends of the second supporting frame 831, and the second supporting frame 831 is in transmission fit with the transmission mechanism 82. The travel rollers 832 can engage the stair surface under the drive of the drive 81.

The transmission mechanism 82 includes at least one gear assembly 821 and at least one output spindle 822, where the gear assemblies 821 in this embodiment are three sets, and the output spindle 822 is one. The gear assembly 821 is in power connection with the driving member 81, and the output spindle 822 is in power connection with the gear assembly 821. The second support 831 of the traveling mechanism 83 is fitted to the output main shaft 822. Therefore, the transmission mechanism 82 adopts gear transmission, and is low in cost and stable in operation.

The number of the traveling mechanisms 83 is two, and the two traveling mechanisms 83 are respectively sleeved on both end portions of the output main shaft 822. Thus, the two traveling mechanisms 83 operate more stably and powerfully.

As shown in fig. 11 and 12, the gear transmission assemblies 821 of this embodiment are three sets, namely, a primary gear transmission assembly 8211, a secondary gear transmission assembly 8212 and a tertiary gear transmission assembly 8213. The primary gear drive assembly 8211 includes a primary input driven gear 8211 a. The secondary gear drive assembly 8212 includes a secondary input drive gear 8212a and a secondary input driven gear 8212 b. The tertiary gear drive assembly 8213 includes a tertiary input drive gear 8213a and a tertiary input driven gear 8213 b. The driving end of the driving part 81 is in transmission connection with a primary input driven gear 8211a, and the primary input driven gear 8211a is meshed with a secondary input driving gear 8212 a. A secondary input driving gear 8212a is meshed with a secondary input driven gear 8212 b; the secondary input driven gear 8212b meshes with the tertiary input drive gear 8213 a. A third-stage input driving gear 8213a is meshed with a third-stage input driven gear 8213b, and the third-stage input driven gear 8213b is sleeved on the periphery of the output main shaft 822. The driving member 81 of this embodiment may be a motor, and a gear engaged with the primary input driven gear 8211a may be sleeved on an outer circumference of a motor shaft to achieve output of motor power.

The second support frame 831 of this embodiment includes two second support plates 8311, the two second support plates 8311 are fixedly connected by fasteners such as screws, and a gap is left between the two second support plates 8311. The walking rollers 832 are rotatably mounted between the two second support plates 8311 and located at two ends of the second support plates 8311. Therefore, the second support frame 831 is structurally stable and has high support strength.

As shown in fig. 9, the second support piece 8311 of the present embodiment has an "S" shape, and the traveling rollers 832 are respectively attached to the left and right ends of the second support piece 8311.

Two ends of the output spindle 822 are fixedly mounted between the two second support pieces 8311 through the spindle fixing ring 823 and are located in the middle of the second support pieces 8311.

The two traveling rollers 832 are symmetrically disposed centering on the center of the output main shaft 822.

The operating principle of the lifting device 8 of the present embodiment is:

when the stair climbing machine is used for pushing a person with mobility disability to a stair, the driving member 81 drives the first-stage input driven gear 8211a to rotate, the first-stage input driven gear 8211a drives the second-stage input driving gear 8212a to rotate, the second-stage input driving gear 8212a drives the second-stage input driven gear 8212b to rotate, the second-stage input driven gear 8212b drives the third-stage input driving gear 8213a to rotate, the third-stage input driving gear 8213a drives the third-stage input driven gear 8213b to rotate, the third-stage input driven gear 8213b drives the output main shaft 822 to rotate, thereby driving the traveling mechanism 83 sleeved on the output spindle 822 to rotate, the traveling rollers 832 rotate to the surface of the first stair, at this time, the walking rollers 832 play a supporting role, when the user goes up and down the stairs, the two walking rollers 832 at the two ends of the second supporting frame 831 alternately contact with the stair step surface to alternately support, and then the walking of the ladder stand is completed.

The utility model discloses a certain supporting role can be played to elevating gear 8 when going upstairs and downstairs, and then the stability of cat ladder machine when being convenient for improve going upstairs and downstairs. The utility model discloses can realize semi-automatic cat ladder with the user cooperation under driving piece 81's drive, convenient operation, the security is high.

As shown in fig. 1, the ladder climbing machine of the present embodiment further includes an upper handrail 9 and a lower handrail 10. The upper handrail 9 is arranged on the frame 1 and positioned above the backrest 2, the upper handrail 9 is provided with a control button which is mainly used for the operation of a caregiver, and the whole ladder climbing machine is controlled, pushed and pulled through the upper handrail 9. The lower armrests 10 are arranged on the backrest 2 and above the two sides of the seat cushion 3, and the lower armrests 10 are mainly used for placing arms of users who cannot move conveniently to play a supporting role.

As shown in fig. 13, the ladder climbing machine according to the present embodiment further includes a power supply device 20, and the power supply device 20 includes a housing 201, a storage battery 202 provided inside the housing 201, and a power jack 203 provided on a surface of the housing 201. The housing 201 may be fixedly mounted to the bottom of the seat cushion 3 by a fastener such as a screw. The battery 202 of the power supply device 20 can be electrically connected to the driving member 81 of the lifting device 8 and to the controller for supplying power to the electrical components.

The utility model discloses a cat ladder machine is provided with elevating gear 8 and brake equipment 7, and when using cat ladder machine to go up and down stairs, elevating gear 8 can play certain supporting role when going up and down stairs, and then the stability of cat ladder machine when being convenient for improve going up and down stairs. And brake equipment 7 can effectually brake rear wheel 5, and rear wheel 5 can not take place to rotate when going upstairs and downstairs, can effectively improve the security of whole cat ladder machine. Therefore, the utility model discloses a cat ladder machine convenient to use, convenient operation and safe and reliable.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The ladder climbing machine for the patient with the difficulty in moving comprises a rack (1), a backrest (2), a cushion (3), front wheels (4), rear wheels (5) and a base (6), wherein the backrest (2), the cushion (3), the rear wheels (5) and the base (6) are installed on the rack (1), the front wheels (4) are located in front of the rear wheels (5), the lower end faces of the front wheels and the lower end faces of the rear wheels are located on the same horizontal line, and the ladder climbing machine is characterized by further comprising a braking device (7) and a lifting device (8), wherein the braking device (7) is installed on the base (6) and matched with the rear wheels (5) and used for braking the rear wheels (5); elevating gear (8) are installed in base (6) and are located the below of cushion (3), elevating gear (8) cooperate with rear wheel (5) and can cooperate with the stair step face.

2. The stair climbing machine for the handicapped patient according to claim 1, the brake device (7) comprises a lever driving wheel assembly (71), a brake block assembly (72), a fixing plate (73) and a linkage plate (74), the rear wheel (5) is rotatably arranged on a fixing plate (73), the fixing plate (73) is arranged on the base (6), the lever driving wheel assembly (71) is rotatably arranged on the fixing plate (73) through a first pin shaft (76), the brake block assembly (72) is rotatably mounted on the fixing plate (73) through a second pin shaft (77) and is matched with the rear wheel (5), one end of the linkage plate (74) is hinged with the brake plate component (72), the other end is hinged with the lever driving wheel component (71), the brake pad assembly (72) can brake the rear wheel (5) under the driving of the lever driving wheel assembly (71).

3. The stair climbing machine for the patients with the disabilities as claimed in claim 2, wherein the brake block assembly (72) comprises a brake block (721), a brake block fixing seat (722) and a fixed auxiliary rod (723), the brake block (721) is mounted on the brake block fixing seat (722) and matched with the rear wheel (5), one end of the fixed auxiliary rod (723) is mounted on the brake block fixing seat (722), the other end of the fixed auxiliary rod and the brake block fixing seat (722) are mounted on the fixing plate (73) together through a second pin shaft (77), the middle parts of the brake block fixing seat (722) and the fixed auxiliary rod (723) are connected through a fourth pin shaft (724), the fourth pin shaft (724) is in sliding fit with the fixing plate (73), one end of the linkage block (74) is sleeved on the fourth pin shaft (724), and the other end of the linkage block (74) is hinged to the lever driving wheel assembly (71).

4. The stair climbing machine for the patient with the handicapped people according to claim 3, wherein a limiting groove (731) is formed in the fixing plate (73), the fourth pin shaft (724) is matched with the limiting groove (731), one end of the linkage plate (74) is sleeved on the fourth pin shaft (724), and the other end of the linkage plate is connected with the lever driving wheel assembly (71) through the third pin shaft (78).

5. The stair climbing machine for the patients with the disabilities as claimed in claim 4, wherein the lever driving wheel assembly (71) comprises a first support frame (711) and a lever driving wheel (712), the lever driving wheel (712) is rotatably mounted at two ends of the first support frame (711), the first support frame (711) is connected with the fixing plate (73) through a first pin shaft (76), and the first support frame (711) is connected with the linkage plate (74) through a third pin shaft (78).

6. The stair climbing machine for the mobility-impaired patient according to claim 5, wherein the brake device (7) further comprises a tension spring (75), one end of the tension spring (75) is connected with the first pin shaft (76), and the other end of the tension spring is connected with the fourth pin shaft (724).

7. The stair climbing machine for the patients with the disabilities as claimed in any one of claims 1-6, wherein the lifting device (8) comprises a driving element (81), a transmission mechanism (82) and a traveling mechanism (83), the driving end of the driving element (81) is in power connection with the transmission mechanism (82), the traveling mechanism (83) is mounted on the transmission mechanism (82), the transmission mechanism (82) is in transmission connection with the traveling mechanism (83), the traveling mechanism (83) comprises a second support frame (831) and traveling rollers (832), the traveling rollers (832) are rotatably mounted at two ends of the second support frame (831), the second support frame (831) is in transmission fit with the transmission mechanism (82), and the traveling rollers (832) can be matched with the stair step surface under the driving of the driving element (81).

8. The stair climbing machine for the patients with the disabilities as claimed in claim 7, wherein the transmission mechanism (82) comprises at least one set of gear transmission assembly (821) and at least one output main shaft (822), the gear transmission assembly (821) is in power connection with the driving member (81), the output main shaft (822) is in transmission connection with the gear transmission assembly (821), and the second support frame (831) of the walking mechanism (83) is sleeved on the output main shaft (822).

9. The ladder climbing machine for the handicapped patient according to claim 8, wherein the gear transmission assembly (821) is three groups of one primary gear transmission assembly (8211), one secondary gear transmission assembly (8212) and one tertiary gear transmission assembly (8213), the primary gear transmission assembly (8211) includes a primary input driven gear (8211a), the secondary gear transmission assembly (8212) includes a secondary input driving gear (8212a) and a secondary input driven gear (8212b), the tertiary gear transmission assembly (8213) includes a tertiary input driving gear (8213a) and a tertiary input driven gear (8213b), the driving end of the driving member (81) is in transmission connection with the primary input driven gear (8211a), the primary input driven gear (8211a) is engaged with the secondary input driving gear (8212a), the secondary input driving gear (8212a) is engaged with the secondary input driven gear (8212b), the secondary input driven gear (8212b) is meshed with a tertiary input driving gear (8213a), the tertiary input driving gear (8213a) is meshed with a tertiary input driven gear (8213b), and the tertiary input driven gear (8213b) is sleeved on the periphery of the output main shaft (822).

10. The stair climbing machine for the mobility-impaired patient according to any one of claims 1 to 6, further comprising a power supply device (20), wherein the power supply device (20) is mounted at the bottom of the seat cushion (3), and the power supply device (20) is electrically connected with the lifting device (8).