Electric wheelchair with adjustable seat height

Abstract

The utility model discloses an electric wheelchair with adjustable seat height, which relates to the technical field of wheelchairs and comprises a lower base, a first motor is arranged on the outer surface of the upper end of the lower base, a storage battery is arranged on the outer surface of the upper end of the lower base, and a lead screw is arranged at the output end of a second motor. A first travel switch and a second travel switch are arranged on the outer surface of the front end of the fixing side plate, four sets of fixing sleeves are symmetrically arranged below the upper base, and a threaded sleeve is arranged below the upper base. According to the electric wheelchair with the adjustable seat height, the storage battery supplies power to the first motor and the second motor, the first motor and the second motor control the power-assisted wheels to rotate, a user can conveniently drive the wheelchair, the second motor controls the lead screw to rotate, and therefore the threaded sleeve is controlled to move up and down, and the user can conveniently adjust the height of the wheelchair; the lifting height of the wheelchair is limited through the first travel switch and the second travel switch.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wheelchair technical field, especially a seat height adjustable electric wheelchair. BACKGROUND

[0002] The electric wheelchair is a new generation of intelligent wheelchair which is formed by adding high-performance power driving device, intelligent control device, battery and other components on the basis of the traditional manual wheelchair, and has the functions of advancing, retreating, steering, standing, lying and the like under the control of the artificial intelligent controller.

[0003] The existing electric wheelchair cannot adjust the height of the wheelchair when it is installed and used, so that the user's feet are easily wet when passing through the pothole area in rainy days, which brings certain adverse effects to the use process of people. UTILITY MODEL CONTENTS

[0004] The utility model mainly aims at providing a seat height adjustable electric wheelchair which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that

[0006] The utility model provides a kind of electric wheelchair of adjustable seat height, including lower base, the lower of the lower base is provided with booster wheel and gyro wheel, the booster wheel and gyro wheel are symmetrically provided with on the left and right sides of lower base, the inner side of two groups of the booster wheel is provided with connecting shaft, the upper end outer surface of the lower base is provided with first motor, the output end of the first motor and the outer side of connecting shaft are provided with fixed ring, the inner wall of the fixed ring is provided with clamping groove, the inner side of the clamping groove is provided with belt, the upper end outer surface of the lower base is provided with protection box, the inside of the protection box is provided with second motor, fixed rod is provided between the second motor and protection box, the upper end outer surface of the lower base is provided with battery, the upper inner wall of the protection box is provided with fixed groove, the upper end outer surface of the lower base is symmetrically provided with four groups of limit sliding rods, the output end of the second motor is provided with screw rod, the inner side of the protection box is provided with fixed side plate, the inner wall of the fixed side plate is provided with fixed hole, the front end outer surface of the fixed side plate is provided with first travel switch and second travel switch, the right side of the protection box is provided with cooling fan, the upper of the protection box is provided with upper base, the upper end outer surface of the upper base is provided with wheelchair body, the lower of the front end of the wheelchair body is provided with footboard, fixed screw is provided between the upper base and wheelchair body, the lower of the upper base is symmetrically provided with four groups of fixed sleeve, the lower of the upper base is provided with threaded sleeve, a plurality of groups of connecting rods are provided between the threaded sleeve and fixed sleeve, the outer side of a group of the fixed sleeve is provided with fixed pin.

[0007] Preferably, the gyro wheel is fixedly arranged below the lower base, the connecting shaft is fixedly arranged inside the booster wheel, the first motor is fixedly arranged on the upper end outer surface of the lower base, the fixed ring is fixedly arranged on the output end of the first motor and the outer side of the connecting shaft, and the belt is detachably connected with the fixed ring through the clamping groove.

[0008] Preferably, the protection box is fixedly arranged on the upper end outer surface of the lower base, the second motor is fixedly arranged inside the protection box through the fixed rod, and the screw rod is fixedly arranged on the output end of the second motor.

[0009] Preferably, the limit sliding rod is fixedly arranged on the upper end outer surface of the lower base, the fixed side plate is fixedly arranged inside the protection box, and the first travel switch and the second travel switch are detachably connected with the fixed side plate through the fixed hole.

[0010] Preferably, the cooling fan is fixedly arranged on the right side of the protection box, the upper base is detachably connected with the wheelchair body through the fixed screw, and the footboard is fixedly arranged below the wheelchair body.

[0011] Preferably, the fixed sleeves are fixedly arranged on the inner side of the upper base, the threaded sleeve is fixedly arranged below the upper base through the arranged connecting rod, the fixed pin is fixedly arranged on the outer side of the group of fixed sleeves, and the threaded sleeve is in threaded connection with the lead screw.

[0012] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0013] 1、The utility model discloses a first motor is supplied with power through the setting battery, and the fixed ring and the belt are controlled to rotate through the setting first motor, thereby driving the power wheel to rotate, facilitating the user to drive the wheelchair, the belt is limited through the setting clamping groove, prevents it from slipping, and the inside of the protection box is radiated through the setting cooling fan.

[0014] 2、The utility model discloses a second motor is supplied with power through the setting battery, and the lead screw is controlled to rotate through the setting second motor, thereby controlling the threaded sleeve to move up and down on the outer side of the lead screw, thereby facilitating the user to adjust the height of the wheelchair, the upper base is limited through the setting fixed sleeve and the limiting slide rod, prevents it from deviating in the process of moving up and down, and the stroke of the wheelchair moving up and down is limited through the setting first travel switch and second travel switch. DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of the utility model;

[0016] Figure 2 It is the internal structure schematic diagram of the lower base of the utility model;

[0017] Figure 3 It is the internal structure schematic diagram of the upper base of the utility model;

[0018] Figure 4 It is the first motor and connecting shaft connecting structure schematic diagram of the utility model.

[0019] In the drawing: 1, lower base;2, power wheel;3, roller;4, connecting shaft;5, fixed ring;6, first motor;7, clamping groove;8, belt;9, protection box;10, wheelchair main body;11, footboard;12, battery;13, fixed groove;14, limiting slide rod;15, second motor;16, fixed rod;17, lead screw;18, fixed side plate;19, fixed hole;20, first travel switch;21, second travel switch;22, cooling fan;23, upper base;24, fixed screw;25, fixed sleeve;26, connecting rod;27, threaded sleeve;28, fixed pin. CONCRETE IMPLEMENTATION

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Example 1, as Figures 1-4 As shown, an electric wheelchair with an adjustable seat height includes a lower base 1. A battery 12 is installed on the upper outer surface of the lower base 1 to power the device. When the operator needs to drive the wheelchair body 10 forward, the first motor 6 is started. The battery 12 powers the first motor 6, causing it to rotate the fixing ring 5 and the belt 8, which in turn drives the power wheel 2 to rotate, propelling the wheelchair forward. Rollers 3 provide auxiliary support to the bottom of the lower base 1, and a slot 7 limits the belt 8 to prevent it from slipping. A cooling fan 22 dissipates heat from the inside of the protective box 9. The protective box 9 protects the battery 12, the first motor 6, and the second motor 15 from rainwater splashing onto their surfaces, preventing corrosion and rust.

[0022] Example 2, as Figures 1-4 As shown, an electric wheelchair with an adjustable seat height is fixed to the upper base 23 by a fixing screw 24, which facilitates the user's installation and disassembly. When the user needs to adjust the height of the wheelchair body 10, the second motor 15 is started. The second motor 15 is powered by the battery 12, which controls the rotation of the lead screw 17, thereby controlling the threaded sleeve 27 to move up and down on the outside of the lead screw 17, so that the user can adjust the height of the wheelchair body 10. The upper base 23 is limited by the fixing sleeve 25 and the limiting slide rod 14 to prevent it from deviating during the up and down movement. The range of lifting and lowering of the wheelchair body 10 is limited by the first limit switch 20 and the second limit switch 21.

[0023] It needs to be explained that the utility model discloses a seat height adjustable electric wheelchair, when the user needs to drive the wheelchair to go forward, the first motor 6 is started, the first motor 6 is powered by the battery 12 arranged, the fixed ring 5 and the belt 8 are controlled to rotate, thereby driving the power wheel 2 to rotate, and the wheelchair is driven to travel, when the user needs to adjust the height of the wheelchair, the second motor 15 is started, the second motor 15 is powered by the battery 12 arranged, the screw rod 17 is controlled to rotate, thereby controlling the threaded sleeve 27 to move up and down in the inside of the protection box 9, the height of the wheelchair main body 10 is adjusted according to the demand of the user, when the equipment is installed, the threaded sleeve 27 is sleeved on the outside of the screw rod 17, the fixed sleeve 25 is sleeved on the outside of the limiting slide rod 14, the screw rod 17 is controlled to rotate by the second motor 15 arranged, thereby the threaded sleeve 27 is screw connected on the outside of the screw rod 17, the limiting slide rod 14 is clamped in the inside of the fixed sleeve 25, the equipment is limited, then the first travel switch 20 is installed on the front end outer surface of the fixed side plate 18, when the wheelchair moves upward, the fixed pin 28 contacts the first travel switch 20, then the second motor 15 stops working, at this moment, the highest height of the wheelchair is reached, when the threaded sleeve 27 moves downward, the fixed pin 28 contacts the second travel switch 21, the second motor 15 stops working, at this moment, the wheelchair is lowered to the lowest height, and the upper base 23 is clamped above the protection box 9, a plurality of fixed holes 19 are arranged, the position of the first travel switch 20 is adjusted according to the demand of the user, thereby the height of the wheelchair lifting is adjusted.

[0024] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electrically powered wheelchair with adjustable height of the seat, comprising a lower base (1), characterized in that: The lower part of the lower base (1) is provided with booster wheels (2) and rollers (3), the booster wheels (2) and the rollers (3) are symmetrically arranged on the left and right sides of the lower base (1), the inner sides of the two groups of booster wheels (2) are provided with connecting shafts (4), the outer surface of the upper end of the lower base (1) is provided with a first motor (6), the output end of the first motor (6) and the outer side of the connecting shaft (4) are provided with a fixed ring (5), the inner wall of the fixed ring (5) is provided with a clamping groove (7), the inner side of the clamping groove (7) is provided with a belt (8), the outer surface of the upper end of the lower base (1) is provided with a protection box (9), the inside of the protection box (9) is provided with a second motor (15), the second motor (15) and the protection box (9) are provided with a fixed rod (16), the outer surface of the upper end of the lower base (1) is provided with a battery (12), the upper inner wall of the protection box (9) is provided with a fixed groove (13), the outer surface of the upper end of the lower base (1) is symmetrically provided with four groups of limiting sliding rods (14), the output end of the second motor (15) is provided with a lead screw (17), the inner side of the protection box (9) is provided with a fixed side plate (18), the inner wall of the fixed side plate (18) is provided with a fixed hole (19), the outer surface of the front end of the fixed side plate (18) is provided with a first travel switch (20) and a second travel switch (21), the right side of the protection box (9) is provided with a cooling fan (22), the upper part of the protection box (9) is provided with an upper base (23), the outer surface of the upper end of the upper base (23) is provided with a wheelchair body (10), the lower part of the front end of the wheelchair body (10) is provided with a foot pedal (11), the fixed screw (24) is arranged between the upper base (23) and the wheelchair body (10), the lower part of the upper base (23) is symmetrically provided with four groups of fixed sleeves (25), the lower part of the upper base (23) is provided with a threaded sleeve (27), a plurality of connecting rods (26) are arranged between the threaded sleeve (27) and the fixed sleeve (25), the outer side of a group of fixed sleeves (25) is provided with a fixed pin (28).

2. The electrically powered wheelchair with adjustable seat height according to claim 1, characterized in that: The roller (3) is fixedly arranged below the lower base (1), the connecting shaft (4) is fixedly arranged on the inner side of the booster wheel (2), the first motor (6) is fixedly arranged on the outer surface of the upper end of the lower base (1), the fixed ring (5) is fixedly arranged on the output end of the first motor (6) and the outer side of the connecting shaft (4), and the belt (8) is detachably connected with the fixed ring (5) through the clamping groove (7).

3. The electrically powered wheelchair with adjustable seat height according to claim 1, characterized in that: The protection box (9) is fixedly arranged on the outer surface of the upper end of the lower base (1), the second motor (15) is fixedly arranged on the inner side of the protection box (9) through the fixed rod (16), and the lead screw (17) is fixedly arranged on the output end of the second motor (15).

4. The electrically powered wheelchair with adjustable seat height according to claim 1, characterized in that: The limiting slide rod (14) is fixedly arranged on the upper end outer surface of the lower base (1), the fixed side plate (18) is fixedly arranged on the inner side of the protection box (9), and the first travel switch (20) and the second travel switch (21) are detachably connected with the fixed side plate (18) through the fixed holes (19).

5. The electrically powered wheelchair with adjustable seat height according to claim 1, characterized in that: The heat dissipation fan (22) is fixedly arranged on the right side of the protection box (9), the upper base (23) is detachably connected with the wheelchair body (10) through the fixed screws (24), and the foot pedal (11) is fixedly arranged below the wheelchair body (10).

6. The electrically powered wheelchair with adjustable seat height according to claim 1, characterized in that: The fixed sleeve (25) is fixedly arranged on the inner side of the upper base (23), the threaded sleeve (27) is fixedly arranged below the upper base (23) through the connecting rod (26), the fixed pin (28) is fixedly arranged on the outer side of the group of fixed sleeves (25), and the threaded sleeve (27) is in threaded connection with the lead screw (17).

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