Electric wheelchair capable of preventing sliding on slope

Abstract

The utility model discloses an anti-slip electric wheelchair which comprises a wheelchair body, the top of the wheelchair body is provided with a seat plate, the bottom of the wheelchair body is provided with an anti-slip mechanism, the bottom of the wheelchair body is provided with a lifting mechanism, and the lifting mechanism comprises a lifting assembly, a driving assembly and a driving assembly. Comprising a connecting rod installed at the bottom of a wheelchair body, the bottom end of the connecting rod is fixedly connected with a connecting plate, the surface of the connecting rod is slidably connected with a lifting plate, the interior of the lifting plate is rotatably connected with a rotating rod, and the top of the lifting plate is fixedly connected with a cushion through the lifting rod; the utility model relates to the technical field of electric wheelchairs. According to the electric wheelchair capable of preventing sliding on the slope, by arranging the lifting mechanism, the height of the cushion can be freely adjusted, so that the electric wheelchair is suitable for people of different heights, and when the people use the electric wheelchair, the height of the cushion can be conveniently adjusted, and therefore high objects can be taken.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wheelchairs, in particular to an electric wheelchair capable of preventing slope slipping. Background Art

[0002] The reference patent name is: An anti-slope electric wheelchair (patent publication number: CN217472274U, patent publication date: 2022.09.23), including a seat, a driving mechanism is fixedly connected to the left side of the bottom of the seat, a support plate is fixedly connected to the bottom of the driving mechanism, and driving wheels are fixedly connected on both sides of the driving mechanism, a second T-bar is fixedly connected to the right side of the seat, a pedal is fixedly connected to the right side of the second T-bar, and a support frame is fixedly connected to the bottom of the second T-bar, and a roller is rotatably connected in the support frame, a support plate is fixedly connected between the two support frames, and an anti-slope mechanism is fixedly connected to the right side of the support plate. The anti-slope electric wheelchair can move in a direction close to each other through two brake blocks, and is close to both sides of the rollers, so as to effectively position and lock the rollers, thereby preventing the wheelchair from sliding down, eliminating the safety hazards caused to the user by sliding down, and playing a role in protecting the user's life safety.

[0003] Based on what is described in the above-mentioned document: Most of the existing electric wheelchairs do not have the function of locking the roller positioning. When the electric wheelchair stops on a slope, it is easy to slide down the slope. At the same time, the existing electric wheelchairs cannot freely adjust the height of the seat cushion, which makes it inconvenient for users to pick up items at higher places. Therefore, the utility model provides an anti-slip electric wheelchair. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an anti-slip electric wheelchair, which solves the problem that the existing electric wheelchairs cannot freely adjust the height of the seat cushion, making it inconvenient for users to pick up items at higher places, and most of the existing electric wheelchairs do not have the function of locking the roller positioning, so when the electric wheelchair stays on a slope, it is easy to slip.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an anti-slip electric wheelchair, comprising a wheelchair body, a seat plate is installed on the top of the wheelchair body, an anti-slip mechanism is arranged at the bottom of the wheelchair body, and a lifting mechanism is arranged at the bottom of the wheelchair body, and the lifting mechanism comprises:

[0006] The lifting assembly comprises a connecting rod installed at the bottom of the wheelchair body, the bottom end of the connecting rod is fixedly connected to a connecting plate, the surface of the connecting rod is slidably connected to a lifting plate, the interior of the lifting plate is rotatably connected to a rotating rod, and the top of the lifting plate is fixedly connected to a seat cushion through the lifting rod;

[0007] The driving assembly is arranged on the top of the connecting plate.

[0008] Preferably, the driving assembly includes a driving motor installed on the top of the connecting plate, one end of the output shaft of the driving motor is fixedly connected to the driving rod through a coupling, the surface of the driving rod is fixedly connected to the driving plate, and one end of the driving plate is rotatably connected to one end of the rotating rod.

[0009] Preferably, the anti-slope mechanism includes a support column installed at the bottom of the wheelchair body, the bottom of the support column is rotatably connected to a rolling rod, both ends of the rolling rod are equipped with rolling wheels, the surface of the support column is fixedly connected to a support plate, the top of the support plate is provided with a moving component, and the top of the support plate is adjusted by an adjusting component to make the limit gear slide.

[0010] Preferably, a rolling gear is fixedly connected to the surface of the rolling rod, and the surface of the rolling gear is meshed with the surface of the limiting gear.

[0011] Preferably, the adjustment assembly includes an adjustment plate slidably installed inside the support column and an adjustment motor installed on one side of the support column, one end of the output shaft of the adjustment motor is fixed with an adjustment screw via a coupling, the surface of the adjustment screw is connected to the internal thread of the adjustment plate, one end of the adjustment screw is rotatably connected to the top of the support plate, and the bottom of the adjustment plate is fixedly connected to the surface of the limit gear via an adjustment rod.

[0012] Preferably, the moving component includes a moving motor installed on the top of the support plate, one end of the output shaft of the moving motor is fixedly connected to a moving wheel via a coupling, the surface of the moving wheel is connected to a transmission wheel via a transmission belt, and the interior of the transmission wheel is fixedly connected to the surface of the rolling rod.

[0013] Beneficial Effects

[0014] The utility model provides an anti-slip electric wheelchair. Compared with the prior art, it has the following advantages:

[0015] Beneficial effects:

[0016] (1) The anti-slip electric wheelchair is provided with a lifting mechanism to realize free adjustment of the seat cushion height, so that the electric wheelchair is suitable for people of different heights. When using the electric wheelchair, it is convenient for people to adjust the seat cushion height to take high objects.

[0017] (2) The anti-slip electric wheelchair is provided with an adjustment component so that the limit gear is meshed with the rolling gear, thereby limiting the rolling rod and the rolling wheel, thereby preventing the electric wheelchair from sliding down the slope when it stops on the slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model from the front side perspective;

[0019] Figure 2 It is a three-dimensional schematic diagram of the lifting assembly of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the utility model from a rear side perspective;

[0021] Figure 4 For this utility model Figure 3 Enlarged schematic diagram at point A in the middle.

[0022] In the figure: 1-wheelchair body, 2-seat plate, 3-anti-slip mechanism, 31-support column, 32-rolling rod, 33-rolling wheel, 34-support plate, 35-limiting gear, 4-lifting mechanism, 41-lifting assembly, 411-connecting rod, 412-connecting plate, 413-lifting plate, 414-rotating rod, 415-seat cushion, 42-driving assembly, 421-driving motor, 422-driving rod, 423-driving plate, 5-moving assembly, 51-moving motor, 52-moving wheel, 53-transmission wheel, 6-adjusting assembly, 61-adjusting plate, 62-adjusting motor, 63-adjusting screw, 7-rolling gear. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 , the utility model provides two technical solutions:

[0025] Embodiment 1

[0026] An anti-slip electric wheelchair comprises a wheelchair body 1, a seat plate 2 is installed on the top of the wheelchair body 1, an anti-slip mechanism 3 is arranged at the bottom of the wheelchair body 1, and a lifting mechanism 4 is arranged at the bottom of the wheelchair body 1. The lifting mechanism 4 comprises:

[0027] The lifting assembly 41 includes a connecting rod 411 installed at the bottom of the wheelchair body 1, the bottom end of the connecting rod 411 is fixedly connected to a connecting plate 412, the surface of the connecting rod 411 is slidably connected to a lifting plate 413, the connecting rod 411 is used to limit the lifting plate 413, the lifting plate 413 is internally rotatably connected to a rotating rod 414, the top of the lifting plate 413 is fixedly connected to a cushion 415 through the lifting rod, the lifting rod slides inside the seat plate 2, and the cushion 415 is arranged above the seat plate 2;

[0028] The driving assembly 42 is arranged on the top of the connecting plate 412. The driving assembly 42 includes a driving motor 421 installed on the top of the connecting plate 412. The driving motor 421 is a three-phase asynchronous motor and is connected to the internal battery through wires. One end of the output shaft of the driving motor 421 is fixedly connected to a driving rod 422 through a coupling. One end of the driving rod 422 is rotatably connected to the top of the connecting plate 412 through a fixed block. A driving plate 423 is fixedly connected to the surface of the driving rod 422. One end of the driving plate 423 is rotatably connected to one end of the rotating rod 414. By providing a lifting mechanism 4, the height of the seat cushion 415 can be freely adjusted, so that the electric wheelchair is suitable for people of different heights, and when people use it, it is convenient to adjust the height of the seat cushion 415, so as to realize the taking of high objects.

[0029] Embodiment 2

[0030] The main difference from the first embodiment is:

[0031] An anti-slip electric wheelchair, the anti-slip mechanism 3 includes a support column 31 installed at the bottom of the wheelchair body 1, a slide groove is opened on the inner side of the support column 31, one side of the adjustment plate 61 slides inside the slide groove, the bottom of the support column 31 is rotatably connected to a rolling rod 32, and rolling wheels 33 are installed at both ends of the rolling rod 32. The surface of the support column 31 is fixedly connected to a support plate 34, and a moving component 5 is provided on the top of the support plate 34. The top of the support plate 34 allows a limiting gear 35 to slide through an adjusting component 6, and a rolling gear 7 is fixedly connected to the surface of the rolling rod 32. The surface of the rolling gear 7 is meshed with the surface of the limiting gear 35. The adjusting component 6 includes an adjusting plate 61 slidably installed inside the support column 31 and an adjusting motor 62 installed on one side of the support column 31. The adjusting motor 62 is a three-phase asynchronous motor and is connected to an internal battery through electric wires. An adjusting screw 63 is fixed to one end of the output shaft of the adjusting motor 62 through a coupling, and the surface of the adjusting screw 63 is engaged with the internal screw of the adjusting plate 61 The adjusting screw rod 63 is connected with the top of the support plate 34 by a groove, one end of the adjusting screw rod 63 is rotatably connected with the top of the support plate 34, the bottom of the adjusting plate 61 is fixedly connected with the surface of the limit gear 35 through the adjusting rod, and the adjusting rod slides inside the support plate 34. The moving component 5 includes a moving motor 51 installed on the top of the support plate 34. The moving motor 51 is a three-phase asynchronous motor and is connected to the internal battery through wires. One end of the output shaft of the moving motor 51 is fixedly connected with the moving wheel 52 through a coupling, and the surface of the moving wheel 52 is connected with the driving wheel 53 through a driving belt. A notch is provided inside the support plate 34 to facilitate the driving belt. The inside of the driving wheel 53 is fixedly connected with the surface of the rolling rod 32. By providing the adjusting component 6, the limit gear 35 is meshed with the rolling gear 7, so as to limit the rolling rod 32 and the rolling wheel 33, thereby preventing the electric wheelchair from sliding down the slope when it stops on the slope. At the same time, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] During operation, the moving wheel 52 is driven to rotate by starting the moving motor 51, and the moving wheel 52 drives the driving wheel 53, the rolling rod 32 and the rolling wheel 33 to rotate through the transmission belt, so as to realize the movement of the electric wheelchair. When the electric wheelchair stops on the slope, it is necessary to start the adjusting motor 62 to drive the adjusting screw 63 to rotate. The rotation of the adjusting screw 63 makes the adjusting plate 61, the adjusting rod and the limit gear 35 slide downward synchronously, so that the limit gear 35 meshes with the surface of the rolling gear 7, so as to prevent the electric wheelchair from sliding down the slope. Finally, the driving motor 421 is started to drive The driving rod 422 is driven to rotate, and the rotation of the driving rod 422 drives the two sets of driving plates 423 to rotate. The rotation of the driving plate 423 makes one end of the rotating rod 414 rotate at one end of the driving plate 423, and the other end of the rotating rod 414 rotates inside the lifting plate 413, so that the lifting plate 413 slides on the surface of the connecting rod 411. The sliding of the lifting plate 413 makes the lifting rod slide inside the seat plate 2, so that the cushion 415 slides upward, so as to adjust the height of the cushion 415, which is convenient for users to take high objects or adjust according to different users.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-slip electric wheelchair, comprising a wheelchair body (1), characterized in that: A seat plate (2) is installed on the top of the wheelchair body (1), an anti-slip mechanism (3) is arranged at the bottom of the wheelchair body (1), and a lifting mechanism (4) is arranged at the bottom of the wheelchair body (1), and the lifting mechanism (4) comprises: A lifting assembly (41) comprises a connecting rod (411) installed at the bottom of the wheelchair body (1), the bottom end of the connecting rod (411) is fixedly connected to a connecting plate (412), the surface of the connecting rod (411) is slidably connected to a lifting plate (413), the interior of the lifting plate (413) is rotatably connected to a rotating rod (414), and the top of the lifting plate (413) is fixedly connected to a seat cushion (415) via the lifting rod; The driving assembly (42) is arranged on the top of the connecting plate (412).

2. The anti-slip electric wheelchair according to claim 1, characterized in that: The driving assembly (42) comprises a driving motor (421) mounted on the top of the connecting plate (412); one end of the output shaft of the driving motor (421) is fixedly connected to a driving rod (422) via a coupling; a driving plate (423) is fixedly connected to the surface of the driving rod (422); and one end of the driving plate (423) is rotatably connected to one end of a rotating rod (414).

3. The anti-slip electric wheelchair according to claim 1, characterized in that: The anti-slip mechanism (3) comprises a support column (31) installed at the bottom of the wheelchair body (1); the bottom of the support column (31) is rotatably connected to a rolling rod (32); rolling wheels (33) are installed at both ends of the rolling rod (32); a support plate (34) is fixedly connected to the surface of the support column (31); a moving component (5) is provided at the top of the support plate (34); and the top of the support plate (34) enables a limiting gear (35) to slide through an adjusting component (6).

4. The anti-slip electric wheelchair according to claim 3, characterized in that: A rolling gear (7) is fixedly connected to the surface of the rolling rod (32), and the surface of the rolling gear (7) is meshed with the surface of the limiting gear (35).

5. The anti-slip electric wheelchair according to claim 3, characterized in that: The adjustment assembly (6) comprises an adjustment plate (61) slidably mounted inside the support column (31) and an adjustment motor (62) mounted on one side of the support column (31); an adjustment screw (63) is fixed to one end of the output shaft of the adjustment motor (62) via a coupling; the surface of the adjustment screw (63) is connected to the internal thread of the adjustment plate (61); one end of the adjustment screw (63) is rotatably connected to the top of the support plate (34); and the bottom of the adjustment plate (61) is fixedly connected to the surface of the limit gear (35) via an adjustment rod.

6. The anti-slip electric wheelchair according to claim 3, characterized in that: The moving assembly (5) comprises a moving motor (51) mounted on the top of the support plate (34); one end of the output shaft of the moving motor (51) is fixedly connected to a moving wheel (52) via a coupling; the surface of the moving wheel (52) is connected to a transmission wheel (53) via a transmission belt; the interior of the transmission wheel (53) is fixedly connected to the surface of the rolling rod (32).

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