Anti-collision wheelchair with back lifting mechanism

Abstract

The anti-collision wheelchair with the back lifting mechanism comprises a first connecting plate and a second connecting plate, the end of the first connecting plate and the end of the second connecting plate are both fixedly connected with a stainless steel pipe support, and the first connecting plate is fixedly connected with a first mounting base; the driving motor is fixedly mounted in the first mounting seat, an output shaft of the driving motor is connected with a connecting shaft through a coupler, and a first bevel gear is fixedly mounted on the outer side of the connecting shaft; the lifting mechanism is fixedly mounted on the side surface of the first mounting seat, and the lifting mechanism comprises a second mounting seat, a first screw rod, a second bevel gear, a vertical rod, a screw joint block, a sliding block and a lifting plate; and the first moving mechanism is connected to the side face of the lifting plate, and the first moving mechanism comprises a second screw rod, an end block, a supporting cover and a first hand wheel. The product enriches functions, and also has the functions of assisting a patient in standing and storing articles, so that the use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of anti-collision wheelchairs, in particular to an anti-collision wheelchair with a back lifting mechanism. Background Art

[0002] At present, anti-collision wheelchairs have emerged on the market, which can prevent the wheelchair from colliding with obstacles in front. For example, the Chinese utility model patent 201922443453.2 of the prior art discloses a medical anti-collision wheelchair, including a wheelchair body and a wheelchair anti-collision device; the wheelchair body includes: a seat made of elastic material, and the seat is supported by a stainless steel tube bracket conforming to the human sitting posture; the stainless steel tube bracket is provided with seat armrests corresponding to the arm positions, control buttons are arranged on the seat armrests, and a battery pack is also arranged on the seat armrests; the stainless steel tube bracket is rotatably connected with large wheels through wheel axles, and steel rings are arranged on the outer sides of the large wheels; the stainless steel tube bracket is provided with a footrest connecting rod corresponding to the foot position, and the footrest connecting rod is rotatably connected with a footrest; two pushing grips are symmetrically arranged on the stainless steel tube bracket; the wheelchair anti-collision device includes: a photoelectric sensor is arranged at one end of the footrest connecting rod far away from the stainless steel tube bracket, an electric control brake disc is arranged on the wheel axle, and the electric control brake disc is electrically connected with the photoelectric sensor; a vibrator electrically connected with the photoelectric sensor is also arranged on the pushing grip. It has the following advantages: the patient can manually brake, and a vibrator is arranged on the pushing grip to remind the pusher to pay attention to stopping.

[0003] However, it is found that the following defects still exist in the actual use process of the patented technology product: Since the structure of the wheelchair body is relatively simple, the functions it performs are relatively single. Summary of the Utility Model

[0004] In view of the above defects or deficiencies in the prior art, it is expected to provide an anti-collision wheelchair with a back lifting mechanism, so that the wheelchair also has the functions of assisting the patient to stand and storing items, thus facilitating the use.

[0005] According to the technical solution provided by the embodiment of the present application, an anti-collision wheelchair with a back lifting mechanism includes a first connecting plate and a second connecting plate. The ends of the first connecting plate and the second connecting plate are both fixedly connected with a stainless steel tube bracket, and the first connecting plate is fixedly connected with a first mounting seat; both the front and rear sides of the first mounting seat are open structures;

[0006] A driving motor, the driving motor is fixedly installed inside the first mounting seat, the output shaft of the driving motor is connected with a connecting shaft through a coupling, and a first bevel gear is fixedly installed on the outer side of the connecting shaft;

[0007] Lifting mechanism, the lifting mechanism is fixedly installed on the side of the first mounting seat, and the lifting mechanism includes a second mounting seat, a first screw rod, a second bevel gear, a vertical rod, a screwed block, a slider and a lifting plate; both the left and right sides of the second mounting seat are open structures, the second mounting seat is fixedly installed on the side of the first mounting seat, the first screw rod is installed inside the second mounting seat through a first bearing, the second bevel gear is fixedly installed on the outside of the first screw rod, the first bevel gear meshes with the second bevel gear, the vertical rod is fixedly installed inside the second mounting seat, the screwed block is screwed on the outside of the first screw rod, the slider is slidably installed on the outside of the vertical rod, and the lifting plate is fixedly connected between the screwed block and the slider;

[0008] First moving mechanism, the first moving mechanism is connected to the side of the lifting plate, and the first moving mechanism includes a second screw rod, an end block, a support cover and a first handwheel; the second screw rod is screwed on the side of the lifting plate, a first screw sleeve matching the second screw rod is fixedly installed on the side of the lifting plate, the end block is installed at the end of the second screw rod through a second bearing, the support cover is fixedly connected to the side of the end block, the support cover is in sliding contact with the lifting plate, a first sliding opening matching the support cover is provided on the side of the lifting plate, both the right side and the bottom of the support cover are open structures, the first handwheel is fixedly installed at the end of the second screw rod, and a strip-shaped opening is provided on the backrest of the seat, and the support cover passes through the strip-shaped opening;

[0009] Fixed cover, the fixed cover is fixedly connected to the second connecting plate, and a storage box is slidably installed inside the fixed cover; the bottom of the first mounting seat is fixedly connected to the top of the fixed cover, the right side of the fixed cover is an open structure, and the storage box is an open-top structure;

[0010] Second moving mechanism, the second moving mechanism is connected to the side of the fixed cover, and the second moving mechanism includes a limit plate, a third screw rod, a sliding strip and a second handwheel, the limit plate is fixedly connected to the side of the fixed cover, the third screw rod is screwed on the side of the limit plate, a second screw sleeve matching the third screw rod is fixedly installed on the side of the limit plate, the sliding strip is installed at the end of the third screw rod through a second bearing, the top of the sliding strip is fixedly connected to the bottom of the storage box, a second sliding opening matching the sliding strip is provided at the bottom of the fixed cover, the sliding strip passes through the second sliding opening, and the second handwheel is fixedly installed at the end of the third screw rod.

[0011] In summary, the beneficial effects of the present application are as follows: Through the settings of the first connecting plate, the second connecting plate, the first mounting seat, the driving motor, the connecting shaft, the first bevel gear, the lifting mechanism, the first moving mechanism, the fixed cover, the storage box, and the second moving mechanism, the functions are enriched, enabling the product to also have the functions of assisting patients to stand and storing items, thus facilitating the use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objectives, and advantages of the present application will become more apparent:

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic structural diagram of the connection points of the first connecting plate, the second connecting plate, the first mounting seat, the driving motor, the connecting shaft, the first bevel gear, the second mounting seat, the first screw, the second bevel gear, the fixed cover, the storage box, and the second moving mechanism of the present utility model;

[0015] Figure 3 is a schematic side view structural diagram of the lifting mechanism of the present utility model;

[0016] Figure 4 is a schematic structural diagram of the connection point between the lifting plate and the first moving mechanism of the present utility model.

[0017] Reference numerals in the figures: 1, seat; 2, stainless steel pipe bracket; 3, seat armrest; 5, large wheel; 6, foot pedal link; 7, foot pedal; 8, push grip; 9, photoelectric sensor; 10, electric control brake disc; 11, vibrator; 12, display screen; 13, micro camera; 21, first connecting plate; 22, second connecting plate; 23, first mounting seat; 24, driving motor; 25, connecting shaft; 26, first bevel gear; 27, lifting mechanism; 28, second mounting seat; 29, first screw; 30, second bevel gear; 31, vertical rod; 32, screwed block; 33, slider; 34, lifting plate; 35, first moving mechanism; 36, second screw; 37, end block; 38, support cover; 39, mounting frame; 40, first handwheel; 41, fixed cover; 42, storage box; 43, second moving mechanism; 44, limiting plate; 45, third screw; 46, sliding bar; 47, second handwheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further elaborates the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the relevant utility model and do not limit the utility model. Additionally, it should be noted that for the sake of convenience of description, only the parts related to the utility model are shown in the drawings.

[0019] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0020] Please refer to Figures 1-4 , an anti-collision wheelchair with a back lifting mechanism, including a first connecting plate 21 and a second connecting plate 22. The ends of the first connecting plate 21 and the second connecting plate 22 are both fixedly connected to a stainless steel pipe bracket 2, and the first connecting plate 21 is fixedly connected to a first mounting seat 23; a driving motor 24, the driving motor 24 is fixedly installed inside the first mounting seat 23, the output shaft of the driving motor 24 is connected to a connecting shaft 25 through a coupling, and a first bevel gear 26 is fixedly installed on the outer side of the connecting shaft 25; a lifting mechanism 27, the lifting mechanism 27 is fixedly installed on the side of the first mounting seat 23, and the lifting mechanism 27 includes a second mounting seat 28, a first screw 29, a second bevel gear 30, a vertical rod 31, a screwing block 32, a slider 33 and a lifting plate 34; a first moving mechanism 35, the first moving mechanism 35 is connected to the side of the lifting plate 34, and the first moving mechanism 35 includes a second screw 36, an end block 37, a support cover 38 and a first handwheel 40; a fixed cover 41, the fixed cover 41 is fixedly connected to the second connecting plate 22, and a storage box 42 is slidably installed inside the fixed cover 41; a second moving mechanism 43, the second moving mechanism 43 is connected to the side of the fixed cover 41, and the second moving mechanism 43 includes a limiting plate 44, a third screw 45, a sliding strip 46 and a second handwheel 47.

[0021] As Figures 1-3 shown, both the front and rear sides of the first mounting seat 23 are open structures, the bottom of the first mounting seat 23 is fixedly connected to the top of the fixed cover 41, both the left and right sides of the second mounting seat 28 are open structures, a control switch is fixedly installed on the side of the second mounting seat 28, and the driving motor 24 is electrically connected to the control switch, which facilitates control. The second mounting seat 28 is fixedly installed on the side of the first mounting seat 23, the first screw 29 is installed inside the second mounting seat 28 through a first bearing, the second bevel gear 30 is fixedly installed on the outer side of the first screw 29, the first bevel gear 26 meshes with the second bevel gear 30, the vertical rod 31 is fixedly installed inside the second mounting seat 28, the screwing block 32 is screwed on the outer side of the first screw 29, the slider 33 is slidably installed on the outer side of the vertical rod 31, and the lifting plate 34 is fixedly connected between the screwing block 32 and the slider 33.

[0022] As Figures 1-4As shown, the second screw rod 36 is screwed to the side of the lifting plate 34. A first screw sleeve that fits with the second screw rod 36 is fixedly installed on the side of the lifting plate 34, facilitating the screwing of the second screw rod 36. The end block 37 is installed at the end of the second screw rod 36 through a second bearing. The support cover 38 is fixedly connected to the side of the end block 37. The support cover 38 is in sliding contact with the lifting plate 34. A first sliding opening that matches the support cover 38 is provided on the side of the lifting plate 34, facilitating the sliding of the support cover 38. The right side and the bottom of the support cover 38 are both open structures. The first handwheel 40 is fixedly installed at the end of the second screw rod 36. The right side of the fixed cover 41 is an open structure. The storage box 42 is an open-top structure. A strip-shaped opening is provided on the backrest of the seat 1, facilitating the movement of the support cover 38. The support cover 38 passes through the strip-shaped opening. An installation frame 39 is fixedly installed above the support cover 38. The display screen 12 is fixedly installed on the installation frame 39.

[0023] As Figure 1 and Figure 2 shown, the limit plate 44 is fixedly connected to the side of the fixed cover 41. The third screw rod 45 is screwed to the side of the limit plate 44. A second screw sleeve that fits with the third screw rod 45 is fixedly installed on the side of the limit plate 44, facilitating the screwing of the third screw rod 45. The sliding strip 46 is installed at the end of the third screw rod 45 through a second bearing. The top of the sliding strip 46 and the bottom of the storage box 42 are fixedly connected. A second sliding opening that matches the sliding strip 46 is provided at the bottom of the fixed cover 41, facilitating the sliding of the sliding strip 46. The sliding strip 46 passes through the second sliding opening. The second handwheel 47 is fixedly installed at the end of the third screw rod 45.

[0024] During use: When a patient needs to use the wheelchair, the pusher first rotates the first handwheel 40 of the first moving mechanism 35, which can drive the second screw rod 36 to rotate. The second screw rod 36 can drive the end block 37 and the support cover 38 to move to the right. Subsequently, the patient sits on the seat 1. The photoelectric sensor and the control button are connected to the overall circuit in parallel. The vibrator and the electric control brake disc are connected in parallel in the overall circuit. The control button and the photoelectric sensor are connected in parallel, which can not only ensure the automatic braking of the wheelchair but also allow the patient to manually brake, providing double insurance to ensure that the wheelchair does not collide with the obstacle in front. When the patient needs to stand up, the pusher starts the drive motor 24. The drive motor 24 can drive the connecting shaft 25 and the first bevel gear 26 to rotate. The first bevel gear 26 can drive the second bevel gear 30 and the first screw rod 29 of the lifting mechanism 27 to rotate. The first screw rod 29 can drive the screwed block 32, the lifting plate 34 and the slider 33 to move to adjust the height of the first moving mechanism 35. Then, rotate the first handwheel 40 of the first moving mechanism 35 in the reverse direction to move the support cover 38 to the left and pass through the patient's armpit. Subsequently, drive the support cover 38 to move upward through the drive motor 24, which can lift the patient's back and play a role in assisting the patient to stand up. At the same time, rotate the second handwheel 47 of the second moving mechanism 43, which can drive the third screw rod 45 to rotate. The third screw rod 45 can drive the sliding bar 46 and the storage box 42 to move to the right. At this time, the items carried by the patient can be put into the storage box 42 for storage. Then, rotate the second handwheel 47 in the reverse direction to close the storage box 42. It is convenient to use and enriches the functions, enabling this product to also have the function of storing items.

[0025] It should be noted that the seat 1, the stainless steel pipe bracket 2, the seat armrest 3, the large wheel 5, the footrest connecting rod 6, the footrest 7, the push grip 8, the photoelectric sensor, the electric control brake disc, the control button, the electric control brake disc, the vibrator, and the display screen 12 in this product are derived from the prior art.

[0026] The above description is only the preferred embodiment of this application and the description of the technical principle and other solutions. At the same time, the scope of the utility model involved in this application is not limited to the technical solution formed by the specific combination of the above technical features. It should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solution formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in this application.

Claims

1. An anti-collision wheelchair with a back lifting mechanism, characterized by: It comprises a first connecting plate (21) and a second connecting plate (22), the ends of the first connecting plate (21) and the second connecting plate (22) are both fixedly connected to the stainless steel pipe bracket (2), and the first connecting plate (21) is fixedly connected to the first mounting seat (23); A drive motor (24), wherein the drive motor (24) is fixedly mounted inside the first mounting seat (23), an output shaft of the drive motor (24) is connected to a connecting shaft (25) via a coupling, and a first bevel gear (26) is fixedly mounted on the outer side of the connecting shaft (25); A lifting mechanism (27), the lifting mechanism (27) is fixedly mounted on a side of the first mounting seat (23), the lifting mechanism (27) comprising a second mounting seat (28), a first screw rod (29), a second bevel gear (30), a vertical rod (31), a screw block (32), a sliding block (33) and a lifting plate (34); A first moving mechanism (35), the first moving mechanism (35) is connected to a side surface of the lifting plate (34), the first moving mechanism (35) comprising a second screw rod (36), an end block (37), a support cover (38) and a first hand wheel (40); A fixed cover (41), the fixed cover (41) is fixedly connected to the second connecting plate (22), and a storage box (42) is slidably mounted inside the fixed cover (41); A second moving mechanism (43), the second moving mechanism (43) is connected to the side of the fixed cover (41), and the second moving mechanism (43) comprises a limiting plate (44), a third screw rod (45), a sliding bar (46) and a second hand wheel (47).

2. The anti-collision wheelchair with a back lifting mechanism according to claim 1, characterized in that: The front and rear sides of the first mounting seat (23) are both open structures, the bottom of the first mounting seat (23) is fixedly connected to the top of the fixed cover (41), and the left and right sides of the second mounting seat (28) are both open structures.

3. The anti-collision wheelchair with a back lifting mechanism according to claim 1, characterized in that: The second mounting seat (28) is fixedly mounted on the side of the first mounting seat (23); the first screw rod (29) is mounted inside the second mounting seat (28) through a first bearing; the second bevel gear (30) is fixedly mounted on the outside of the first screw rod (29); the first bevel gear (26) is meshed with the second bevel gear (30); the vertical rod (31) is fixedly mounted inside the second mounting seat (28); the screw block (32) is screwed on the outside of the first screw rod (29); the slider (33) is slidably mounted on the outside of the vertical rod (31); and the lifting plate (34) is fixedly connected between the screw block (32) and the slider (33).

4. The anti-collision wheelchair with a back lifting mechanism according to claim 1, characterized in that: The second screw rod (36) is screwed on the side of the lifting plate (34); a first screw sleeve matching the second screw rod (36) is fixedly installed on the side of the lifting plate (34); the end block (37) is installed on the end of the second screw rod (36) through a second bearing; the support cover (38) is fixedly connected to the side of the end block (37); the support cover (38) is in sliding contact with the lifting plate (34); a first sliding opening matching the support cover (38) is provided on the side of the lifting plate (34); the right side and the bottom of the support cover (38) are both open structures; the first hand wheel (40) is fixedly installed on the end of the second screw rod (36).

5. The anti-collision wheelchair with a back lifting mechanism according to claim 1, characterized in that: The right side of the fixed cover (41) is an open structure, the storage box (42) is an open-top structure, the backrest of the seat (1) is provided with a strip-shaped opening, and the support cover (38) passes through the strip-shaped opening.

6. The anti-collision wheelchair with a back lifting mechanism according to claim 1, characterized in that: The limiting plate (44) is fixedly connected to the side of the fixed cover (41), the third screw (45) is screwed to the side of the limiting plate (44), a second screw sleeve matching the third screw (45) is fixedly installed on the side of the limiting plate (44), the sliding bar (46) is installed on the end of the third screw (45) through a second bearing, the top of the sliding bar (46) is fixedly connected to the bottom of the storage box (42), the bottom of the fixed cover (41) is provided with a second sliding opening matching the sliding bar (46), the sliding bar (46) passes through the second sliding opening, and the second hand wheel (47) is fixedly installed on the end of the third screw (45).

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