Station plate turnover mechanism and electric wheelchair

Abstract

The utility model provides a kind of station board turnover mechanism and electric wheelchair, wherein station board turnover mechanism includes support guide piece, connecting piece and station board, the support guide piece is arranged in the lower surface of the horizontal plate, the outside of the thickness direction of the support guide piece is provided with rotating shaft, the outside of the thickness direction of the support guide piece is provided with guide slot;The connecting piece is located the outside of the thickness direction of the support guide piece, the inside of the connecting piece is provided with guide rod, the guide rod is inserted in the guide slot, and can slide in the guide slot, the rotating connection of the connecting piece is on the rotating shaft;The pulley is provided on the station board, the station board is connected with the connecting piece, and is stored and unfolded by the overturning of station board, to adapt to different scenes, improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of electric wheelchair technology, and in particular to a platform flipping mechanism and an electric wheelchair. Background Technology

[0002] Electric wheelchairs are mobility aids designed specifically for people with mobility impairments. Powered by electricity, they enable forward, backward, and turning movements, offering convenience, comfort, and safety, making them an important choice for the daily travel of the elderly, disabled, and other groups. The core power source of electric wheelchairs is a battery-powered motor, and users control direction and speed using joysticks, remote controls, etc., making operation simple.

[0003] During the autonomous movement of an electric wheelchair, the user typically relies on the device to move, while the accompanying person must follow on foot. To improve convenience, some electric wheelchairs are equipped with a stand for the accompanying person, as seen in patent document CN204106380U. However, existing stands unfold and are fixed to the rear of the electric wheelchair, taking up a lot of space and cannot be stored. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a platform flipping mechanism and an electric wheelchair. The platform can be flipped to achieve storage and unfolding, adapting to different scenarios and improving the user experience.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A platform tilting mechanism for mounting on a horizontal platform, the platform tilting mechanism comprising:

[0007] A support guide is provided on the lower surface of the horizontal plate. A rotating shaft is provided on the outer side of the support guide in the thickness direction, and a guide groove is provided on the outer side of the support guide in the thickness direction.

[0008] A connector is located on the outer side of the support guide in the thickness direction. A guide rod is provided on the inner side of the connector. The guide rod is inserted into the guide groove and can slide in the guide groove. The rotatable connection of the connector is on the rotating shaft.

[0009] A station board, wherein the station board is provided with pulleys, and the station board is connected to the connecting member;

[0010] When the guide rod is located at one end of the guide groove, the station plate is perpendicular to the horizontal plate, and the pulleys on the station plate are arranged outwards; when the guide rod is located at the other end of the guide groove, the station plate is arranged parallel to the horizontal plate, and the pulleys on the station plate are arranged downwards.

[0011] Optionally, the two ends of the guide groove are a first end and a second end, respectively. The line connecting the center of the first end and the center of the rotating shaft is parallel to the horizontal plate, and the line connecting the center of the second end and the center of the rotating shaft is perpendicular to the horizontal plate.

[0012] When the guide rod is located at the first end, the station plate is perpendicular to the horizontal plate, and the station plate is located behind the horizontal plate;

[0013] When the guide rod is at the second end, the station plate is parallel to the horizontal plate, and the station plate is located below the horizontal plate.

[0014] Optionally, the connector includes:

[0015] A first connecting rod is rotatably connected to the rotating shaft;

[0016] A second connecting rod is connected to the station panel, and the second connecting rod is perpendicular to the first connecting rod.

[0017] Optionally, the width of the second connecting rod is greater than the width of the first connecting rod.

[0018] Optionally, the number of the support guide and the number of the connector are two.

[0019] Optionally, it also includes:

[0020] A power component, wherein the power component is disposed on the upper surface of the horizontal plate;

[0021] A transmission assembly is connected to the power component and the two pulleys on the front side of the station plate.

[0022] This utility model also provides an electric wheelchair, including the platform flipping mechanism of the above embodiment, and the electric wheelchair further includes:

[0023] The frame includes side frames, support frames, a seat cushion, and a backrest. The seat cushion, backrest, and support frames are arranged between two side frames. The support frames are located below the seat cushion. The horizontal plate is provided on the lower surface of the support frames. The station plate of the station plate flipping mechanism is located behind the backrest.

[0024] Optionally, it also includes:

[0025] When the station plate is perpendicular to the horizontal plate, the station plate is located between the two side frames. The pin passes through the side frames and is connected to the station plate.

[0026] Optionally, it also includes:

[0027] Two soft pads are fixed to the support frame, and the soft pads are located on the rear side of the support frame.

[0028] Optionally, it also includes:

[0029] The safety belt has two ends connected to the two side frames respectively.

[0030] Compared with existing technologies, this technical solution has the following advantages:

[0031] The platform can be reversibly rotated from a folded state to an unfolded state by manual operation of the user. The horizontal plate can be installed on an electric wheelchair, so that when the platform is in the unfolded state, the accompanying person can stand on the platform and move with the electric wheelchair, improving the user experience.

[0032] The two pulleys on the front side of the platform can rotate synchronously with the wheels of the electric wheelchair. The two pulleys are driven to rotate by the power component to ensure the normal operation of the electric wheelchair. Attached Figure Description

[0033] Figure 1 This is a diagram showing the storage state of the station plate in the station plate flipping mechanism of this utility model;

[0034] Figure 2 This is a diagram showing the unfolded state of the station plate in the station plate flipping mechanism of this utility model;

[0035] Figure 3 This is a diagram showing the storage state of the middle platform of the electric wheelchair described in this utility model;

[0036] Figure 4 This is a diagram showing the unfolded state of the central platform of the electric wheelchair described in this utility model.

[0037] In the diagram: 100 Station plate flipping mechanism, 110 Support guide component, 110a Rotating shaft, 110b Guide groove, 110b1 First end, 110b2 Second end, 120 Connector, 120a Guide rod, 121 Connecting first rod, 122 Connecting second rod, 130 Station plate, 131 Pulley, 140 Power component, 150 Transmission assembly, 151 Input assembly, 151a Input shaft, 151b Input gear, 151c Belt 152 Intermediate Component, 152a Intermediate Front Pulley, 152b Intermediate Front Gear, 152c Intermediate Rear Pulley, 152d Intermediate Rear Gear, 152e Intermediate Synchronous Belt, 153 Output Component, 153a Output Shaft, 153b Output Gear, 200 Horizontal Plate, 300 Frame, 310 Side Frame, 320 Support Frame, 330 Seat Cushion, 340 Backrest, 400 Soft Cushion, 500 Seat Belt, 600 Pin, 700 Wheel. Detailed Implementation

[0038] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0039] First Embodiment

[0040] like Figure 1 and Figure 2 As shown, the platform tilting mechanism 100 is used to be installed on the horizontal plate 200, and the platform tilting mechanism 100 includes:

[0041] A support guide 110 is provided on the lower surface of the horizontal plate 200. A rotating shaft 110a is provided on the outer side of the support guide 110 in the thickness direction, and a guide groove 110b is provided on the outer side of the support guide 110 in the thickness direction.

[0042] The connector 120 is located on the outer side of the support guide 110 in the thickness direction. A guide rod 120a is provided on the inner side of the connector 120. The guide rod 120a is inserted into the guide groove 110b and can slide in the guide groove 110b. The rotatable connection of the connector 120 is on the rotating shaft 110a.

[0043] The station plate 130 is provided with a pulley 131, and the station plate 130 is connected to the connector 120;

[0044] When the guide rod 120a is located at one end of the guide groove 110b, the station plate 130 is perpendicular to the horizontal plate 200, and the pulley 131 on the station plate 130 is set outward; when the guide rod 120a is located at the other end of the guide groove 110b, the station plate 130 is set parallel to the horizontal plate 200, and the pulley 131 on the station plate 130 is set downward.

[0045] The standing platform 130 is rotatably connected to the rotating shaft 110a via the connector 120, allowing the platform to rotate around the shaft. The guide rod 120a on the connector 120 engages with the guide groove 110b on the support guide member 110, the shape of which defines the angle of rotation of the platform 130 around the shaft 110a. When the platform 130 is perpendicular to the horizontal plate 200, it is in a retracted state; when it is parallel to the horizontal plate 200, it is in an unfolded state. The horizontal plate 200 can be mounted on an electric wheelchair, allowing the accompanying person to stand on the platform 130 and move with the wheelchair when it is in the unfolded state. Therefore, the platform 130 in this embodiment has both unfolded and retracted states, which can be adjusted according to usage needs, improving the user experience.

[0046] refer to Figure 1 and Figure 2 The two ends of the guide groove 110b are a first end 110b1 and a second end 110b2, respectively. The line connecting the center of the first end 110b1 and the center of the rotating shaft 110a is parallel to the horizontal plate 200, and the line connecting the center of the second end 110b2 and the center of the rotating shaft 110a is perpendicular to the horizontal plate 200.

[0047] When the guide rod 120a is located at the first end 110b1, the station plate 130 is perpendicular to the horizontal plate 200, and the station plate 130 is located on the rear side of the horizontal plate 200.

[0048] When the guide rod 120a is located at the second end 110b2, the station plate 130 is parallel to the horizontal plate 200, and the station plate 130 is located below the horizontal plate 200.

[0049] The guide groove 110b is arc-shaped with an arc angle of 90°, corresponding to a rotation angle of 90° for the station plate 130. (Reference) Figure 1 The stowed-up platform 130 is located on the rear side of the horizontal plate 200, and the first end 110b1 is located on the rear side of the horizontal plate 200 relative to the second end 110b2.

[0050] When the guide rod 120a is located at the first end 110b1, the station plate 130 is perpendicular to the horizontal plate 200. This reduces the size of the electric wheelchair's station plate 130 when folded, making it easier to pass through narrow passages or for storage.

[0051] When the platform 130 needs to be unfolded, the user manually flips down the platform 130. With the cooperation of the guide rod 120a and the guide groove 110b, the guide rod 120a slides to the second end 110b2. (Refer to...) Figure 2 At this time, the platform 130 is parallel to the horizontal plate 200. When the platform 130 is unfolded, the accompanying person can stand on the platform 130 and move with the electric wheelchair.

[0052] After this, the user manually flips the station panel 130 in the reverse direction to put it in a stowed state. The station panel 130 can then be reversibly rotated from the stowed state to the unfolded state under the user's manual control.

[0053] refer to Figure 1 and Figure 2 The connector 120 includes:

[0054] A first connecting rod 121 is rotatably connected to the rotating shaft 110a;

[0055] A second connecting rod 122 is connected to the station plate 130, and the second connecting rod 122 is perpendicular to the first connecting rod 121.

[0056] One end of the first connecting rod 121 is sleeved on the rotating shaft 110a, and the other end of the first connecting rod 121 is connected to the second connecting rod 122. The first connecting rod 121 and the second connecting rod 122 can be integrally connected to ensure the structural strength and stability of the connector 120. The end of the second connecting rod 122 away from the first connecting rod 121 is connected to the station plate 130. The second connecting rod 122 is perpendicular to the first connecting rod 121, and the rotation angle corresponding to the station plate 130 is 90°.

[0057] refer to Figure 2 The second connecting rod 122 and the pulley 131 are connected to the same side of the station plate 130, and the second rod 122 and the station plate 130 can be fixed with bolts. Preferably, the width of the second connecting rod 122 is greater than the width of the first connecting rod 121, increasing the contact area between the second connecting rod 122 and the station plate 130, improving the connection strength, and ensuring the stability of the structure.

[0058] refer to Figure 1 and Figure 2The number of the supporting guide 110 and the connecting member 120 are both two. The two supporting guides 110 are located between the two connecting members 120, and the two connecting members 120 are respectively disposed on both sides of the width direction of the station plate 130. By increasing the number of supporting guides 110 and connecting members 120, the stability of the station plate 130 rotating relative to the horizontal plate 200 is improved.

[0059] refer to Figure 1 and Figure 2 The platform tilting mechanism 100 further includes:

[0060] A power component 140 is disposed on the upper surface of the horizontal plate 200;

[0061] The transmission assembly 150 is connected to the power component 140 and the two pulleys 131 on the front side of the station plate 130.

[0062] The power component 140 can be a motor, and the transmission component 150 can take various forms, such as gears, pulleys, or connecting rods, so that the power component 140 drives the two pulleys 131 on the front side of the station plate 130 to rotate.

[0063] In this embodiment, the transmission assembly 150 includes:

[0064] Input component 151 is disposed on the horizontal plate 200 and is connected to the power component 140 in a transmission manner;

[0065] Intermediate component 152, which is drively connected between input component 151 and output component 153;

[0066] Output component 153 is connected to the two pulleys 131 on the front side of the station plate 130.

[0067] The input assembly 151 includes an input shaft 151a, an input gear 151b, and a belt 151c. The input shaft 151a is rotatably mounted on the lower surface of the horizontal plate 200. The input gear 151b is mounted on the input shaft 151a. The input shaft 151a and the output shaft of the power component 140 are connected by the belt 151c. The horizontal plate 200 has a hole 201 through which the belt 151c passes. In this way, the power component 140 drives the input shaft 151a and the input gear 151b connected to it to rotate synchronously.

[0068] refer to Figure 1One end of the input shaft 151a is connected to the output shaft of the power component 140 via the belt 151c. The other end of the input shaft 151a is connected to a roller via the belt 151c. The roller is rotatably mounted on the upper surface of the horizontal plate 200 to ensure the smooth rotation of the input shaft 151a.

[0069] refer to Figure 2 The output component 153 includes an output shaft 153a and an output gear 153b. The two ends of the output shaft 153a are respectively connected to the two pulleys 131 on the front side of the station plate 130. The output shaft 153a is provided with an output gear 153b, and the output shaft 153a and the output gear 153b rotate synchronously.

[0070] The intermediate component 152 is connected to the input gear 151b and the output gear 153b respectively. Thus, under the drive of the power component 140, the pulley 131 rotates with the output shaft 153a, thereby enabling the power component 140 to drive the two pulleys 131 on the front side of the station plate 130 to rotate.

[0071] refer to Figure 2 The intermediate component 152 includes an intermediate front pulley 152a, an intermediate front gear 152b, an intermediate rear pulley 152c, an intermediate rear gear 152d, and an intermediate synchronous belt 152e. The intermediate front pulley 152a and the intermediate front gear 152b rotate synchronously and are located inside the thickness direction of the support guide 110. The intermediate rear pulley 152c and the intermediate rear gear 152d rotate synchronously and are located below the connecting second rod 122 of the connector 120. The intermediate front gear 152b meshes with the input gear 151b, the intermediate rear gear 152d meshes with the output gear 153b, and the intermediate synchronous belt 152e is connected to the intermediate front pulley 152a and the intermediate rear pulley 152c for transmission.

[0072] The input gear 151b drives the intermediate front pulley 152a and the intermediate front gear 152b to rotate synchronously. The intermediate front pulley 152a drives the intermediate rear pulley 152c and the intermediate rear gear 152d to rotate synchronously. The intermediate rear gear 152d drives the output shaft 153a and the two pulleys 131 on the front side of the station plate 130 connected to it to rotate.

[0073] Continue to refer to Figure 2The intermediate component 152 has two components, and the input gear 151b and the output gear 153b each have two components. Each intermediate component 152 is connected between one input gear 151b and one output gear 153b. By increasing the number of components, the stability of the two pulleys 131 on the front side of the station plate 130 driven by the power component 140 is improved.

[0074] In summary, the platform 130 can be reversibly rotated from a folded state to an unfolded state under the manual action of the user. The horizontal plate 200 can be installed on the electric wheelchair, so that when the platform 130 is in the unfolded state, the accompanying person can stand on the platform 130 and move with the electric wheelchair, improving the user experience. The two casters 131 on the front side of the platform 130 can rotate synchronously with the wheels 700 of the electric wheelchair. The two casters 131 are driven to rotate by the power component 140, preventing the weight of the accompanying person standing on the platform 130 from affecting the normal movement of the electric wheelchair.

[0075] Second Embodiment

[0076] like Figure 3 and Figure 4 As shown, the electric wheelchair includes the platform flipping mechanism 100 of the first embodiment, and the electric wheelchair also includes:

[0077] The frame 300 includes side frames 310, support frames 320, seat cushions 330, and backrests 340. The seat cushions 330, backrests 340, and support frames 320 are arranged between two side frames 310. The support frames 320 are located below the seat cushions 330. The horizontal plate 200 is arranged on the lower surface of the support frames 320. The station plate 130 of the station plate flipping mechanism 100 is located behind the backrests 340.

[0078] Since the electric wheelchair includes a platform flipping mechanism 100, the beneficial effects of the electric wheelchair can be seen from the platform flipping mechanism 100.

[0079] The electric wheelchair also includes:

[0080] When the station plate 130 is perpendicular to the horizontal plate 200, the station plate 130 is located between the two side frames 310. The pin 600 passes through the side frame 310 and is connected to the station plate 130.

[0081] The pin 600 can be pre-inserted into the side frame 310. When the station plate 130 is flipped to the retracted state, the pin 600 is pushed inward to connect with the station plate 130, thus keeping the station plate 130 in the retracted state. Pulling the pin 600 outward a certain distance disengages the pin from the station plate 130, allowing the station plate 130 to be flipped in the opposite direction.

[0082] The station plate 130 may have a groove to accommodate the insertion of the pin 600. When the pin 600 is inserted into the groove, the pin 600 is connected to the station plate 130.

[0083] refer to Figure 4 The electric wheelchair also includes:

[0084] Two soft pads 400 are fixed to the support frame 320, and the soft pads 400 are located on the rear side of the support frame 320.

[0085] The two cushions 400 correspond to the two knees of the accompanying person, preventing the knees of the accompanying person standing on the platform 130 from directly hitting the frame 300.

[0086] refer to Figure 3 The electric wheelchair also includes:

[0087] A seat belt 500 is connected between the two side frames 310.

[0088] The seat belt 500 can be fastened around the waist of the accompanying person to improve safety.

[0089] The embodiments described above are only used to illustrate the technical ideas and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. The scope of patent application of this utility model should not be limited by these embodiments. That is, any equivalent changes or modifications made in accordance with the spirit disclosed in this utility model still fall within the patent scope of this utility model.

Claims

1. A platform flipping mechanism (100), characterized in that, For mounting on a horizontal plate (200), the plate tilting mechanism (100) includes: A support guide (110) is provided on the lower surface of the horizontal plate (200). A rotating shaft (110a) is provided on the outer side of the support guide (110) in the thickness direction, and a guide groove (110b) is provided on the outer side of the support guide (110) in the thickness direction. A connector (120) is located on the outer side of the support guide (110) in the thickness direction. A guide rod (120a) is provided on the inner side of the connector (120). The guide rod (120a) is inserted into the guide groove (110b) and can slide in the guide groove (110b). The rotatable connection of the connector (120) is on the rotating shaft (110a). A station plate (130) is provided with pulleys (131), and the station plate (130) is connected to the connector (120); When the guide rod (120a) is located at one end of the guide groove (110b), the station plate (130) is perpendicular to the horizontal plate (200), and the pulley (131) on the station plate (130) is set outward; when the guide rod (120a) is located at the other end of the guide groove (110b), the station plate (130) is set parallel to the horizontal plate (200), and the pulley (131) on the station plate (130) is set down.

2. The platform tilting mechanism (100) as described in claim 1, characterized in that, The guide groove (110b) has two ends, namely a first end (110b1) and a second end (110b2). The center line connecting the first end (110b1) and the center line connecting the rotating shaft (110a) is parallel to the horizontal plate (200), and the center line connecting the second end (110b2) and the center line connecting the rotating shaft (110a) is perpendicular to the horizontal plate (200). When the guide rod (120a) is located at the first end (110b1), the station plate (130) is perpendicular to the horizontal plate (200), and the station plate (130) is located behind the horizontal plate (200); When the guide rod (120a) is located at the second end (110b2), the station plate (130) is parallel to the horizontal plate (200), and the station plate (130) is located below the horizontal plate (200).

3. The platform tilting mechanism (100) as described in claim 1, characterized in that, The connector (120) includes: A first connecting rod (121) is rotatably connected to the rotating shaft (110a); A second connecting rod (122) is connected to the station plate (130), and the second connecting rod (122) is perpendicular to the first connecting rod (121).

4. The platform tilting mechanism (100) as described in claim 3, characterized in that, The width of the second connecting rod (122) is greater than the width of the first connecting rod (121).

5. The platform tilting mechanism (100) as described in claim 1, characterized in that, The number of the support guide (110) and the number of the connector (120) are two each.

6. The platform tilting mechanism (100) as described in claim 1, characterized in that, Also includes: A power component (140) is disposed on the upper surface of the horizontal plate (200); A transmission assembly (150) is connected to the power component (140) and the two pulleys (131) on the front side of the station plate (130).

7. An electric wheelchair, characterized in that, Including the platform tilting mechanism (100) as described in any one of claims 1 to 6, the electric wheelchair further includes: The frame (300) includes side frames (310), support frames (320), a seat cushion (330), and a backrest (340). The seat cushion (330), backrest (340), and support frames (320) are arranged between two side frames (310). The support frames (320) are located below the seat cushion (330). The horizontal plate (200) is arranged on the lower surface of the support frames (320). The station plate (130) of the station plate flipping mechanism (100) is located behind the backrest (340).

8. The electric wheelchair as described in claim 7, characterized in that, Also includes: When the station plate (130) is perpendicular to the horizontal plate (200), the station plate (130) is located between two side frames (310). The pin (600) passes through the side frame (310) and is connected to the station plate (130).

9. The electric wheelchair as described in claim 7, characterized in that, Also includes: Two pads (400) are fixed to the support frame (320) and the pads (400) are located on the rear side of the support frame (320).

10. The electric wheelchair as described in claim 7, characterized in that, Also includes: A safety belt (500) is connected between the two side frames (310).

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