Foldable seat structure for mobility scooter for old people

Abstract

The foldable seat structure comprises a stand column, a bottom plate, a rotating plate, a rotating locking device, a rotating locking driving device and a cushion assembly, connecting parts are symmetrically arranged on the two sides of the rotating plate, the connecting parts are hinged to one end of the bottom plate through rotating pins, a locking pin is arranged at the other end of the bottom plate, and the rotating locking device and the rotating locking driving device are arranged on the stand column. The rotary locking device comprises a rotating shaft, a limiting shaft, a connecting shaft, two locking blocks and a spring, the two locking blocks are symmetrically arranged, the middles of the locking blocks are connected through the rotating shaft, the locking blocks are hinged to the lock catch connecting plate through the two ends of the rotating shaft, one end of the spring is connected to one end of the rotating plate, and the other end of the spring is connected to the limiting shaft; the rotary locking driving device comprises a pulling handle, a handle shaft and a pulling rope, the locking block can rotate under the action of the rotary locking driving device, and the foldable seat structure for the elderly mobility scooter is large in seat area, high in comfort and safety and convenient to fold.

Description

Technical Field

[0001] This utility model relates to the field of mobility scooters for the elderly, and in particular to a foldable seat structure for mobility scooters for the elderly. Background Technology

[0002] With the development of technology and the improvement of living standards, various types of mobility scooters for the elderly have emerged on the market to facilitate their travel. In order to facilitate storage and save storage space or to be carried in the trunk of a car, folding mobility scooters for the elderly have also come into being. Folding mobility scooters for the elderly generally include folding body, folding seat and other folding component structures.

[0003] Existing foldable chairs generally consist of only a simple hinge structure, which is not stable enough, has poor safety, and has a small seat area, resulting in poor comfort, making them particularly unsuitable for the elderly. Utility Model Content

[0004] To address the aforementioned issues, this utility model proposes a foldable seat structure for elderly mobility scooters that features a large seat area, high comfort and safety, and convenient folding.

[0005] This utility model is achieved through the following technical solution: a foldable seat structure for elderly mobility scooters, including a column, a base plate, and a seat cushion assembly, wherein the seat cushion assembly includes a seat cushion and a seat cushion shell.

[0006] To enhance safety, a reflective strip is provided at the rear of the seat cushion housing.

[0007] To achieve seat folding, the foldable seat structure of this mobility scooter for the elderly also includes a rotating plate, a rotary locking device, and a rotary locking drive device.

[0008] The base plate is fixedly connected to the upright as a fixed part, and the seat cushion assembly is fixedly connected to the rotating plate as a rotating and folding part.

[0009] Furthermore, the rotating plate is a thin plate, and in order to improve the strength of the rotating plate, several reinforcing protrusions are stamped on the rotating plate.

[0010] The rotating plate has symmetrical connecting parts on both sides. The connecting parts and one end of the base plate are hinged by a rotating pin. The other end of the base plate is provided with a locking pin. The rotating plate has a rotating locking device connecting part and a rotating locking drive device connecting part at both ends of the connecting parts.

[0011] The rotary locking drive device is disposed on the connecting part of the rotary locking drive device and is used to control the rotary locking device to lock or disengage the rotating plate from the base plate. The connecting part of the rotary locking device has a latch window, and latch connecting plates extend upward on both sides of the latch window. The end of the latch connecting plate away from the connecting part extends upward to a limit end.

[0012] The rotary locking device is used to lock or disengage the rotating plate from the base plate. To improve the reliability and convenience of the rotary locking device, it includes a rotating shaft, a limiting shaft, a connecting shaft, two locking blocks, and a spring. The two locking blocks are symmetrically arranged and connected in the middle by the rotating shaft, and hinged to the locking connecting plate at both ends of the rotating shaft. The upper parts of the two locking blocks are connected by the limiting shaft, and the two ends of the limiting shaft can abut against the limiting end. One end of the spring is connected to one end of the rotating plate, and the other end is connected to the limiting shaft. The lower ends of the two locking blocks are connected by the connecting shaft. The lower end of the locking block extends towards the locking pin and has a locking part that matches the outer diameter surface of the locking pin. The locking block can rotate around the rotating shaft under the action of the rotary locking drive device, so that the locking part clamps or disengages from the locking pin, and the limiting shaft abuts or disengages from the limiting end.

[0013] To simplify the structure as much as possible while ensuring ease of operation and saving costs, the rotary locking drive device further includes a pull handle, a handle shaft, and a pull rope. One end of the handle shaft is connected to the tail end of the pull handle, one end of the pull rope is connected to the other end of the handle shaft, and the other end of the pull rope is connected to the limiting shaft.

[0014] To ensure the efficiency of the rope pulling action, the direction of rope movement needs to be restricted. Specifically, the rotating locking drive device connection part has two handle shaft connecting plates and a rope limiting plate in sequence along the other end of the rotating plate. The handle shaft connecting plate has a handle shaft hole, the diameter of which is smaller than the tail end of the pulling handle. The handle shaft is set in the handle shaft hole and can move axially. The rope limiting plate has a rope hole, and the other end of the rope passes through the rope hole and connects to the limiting shaft.

[0015] To improve structural compactness and better conceal and protect the pull handle, rotating plate, and rotary locking device, thereby extending the service life of the device, the lower surface of the seat housing is provided with a rotating plate groove, a handle groove, and a rotary locking device groove. The rotating plate is located in the rotating plate groove, the pull handle is located in the handle groove, and the upper part of the rotary locking device is located in the rotary locking device groove.

[0016] For ease of operation, the pull handle is preferably T-shaped, having a handle portion and a handle shaft connection portion. One end of the handle shaft is fixedly connected to the handle shaft connection portion. Other shapes of pull handles can also be designed according to actual conditions.

[0017] The beneficial effects of this utility model are as follows: The foldable seat structure of this elderly mobility scooter, through the design of a base plate and a rotating plate that are hinged at one end and locked at the other end by a rotating locking device, realizes the folding of the seat of the elderly mobility scooter, and together with the folding and storage of the entire elderly mobility scooter, greatly saves storage space; the rotating locking device structure is stable and reliable, with strong safety, and can also greatly increase the seat area, improving the safety and comfort of riding the elderly mobility scooter; by designing a rotating locking device including a rotating shaft, a limiting shaft, a connecting shaft, a specially shaped locking block, and a spring, as well as a rotating locking drive device including a pull handle, a connecting shaft, and a pull rope, the convenience of the rotating plate detaching from the base plate to achieve flipping and folding is improved; in addition, the foldable seat structure of this elderly mobility scooter is compact, has a long service life, and is low in cost. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the foldable seat structure for the elderly mobility scooter of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the foldable seat structure for the elderly mobility scooter of this utility model, after the seat cushion assembly is hidden.

[0020] Figure 3 This is a schematic diagram of the rotating locking device for the foldable seat structure of the elderly mobility scooter of this utility model.

[0021] Figure 4 This is a schematic diagram of the rotating plate of the foldable seat structure for the elderly mobility scooter of this utility model.

[0022] Figure 5-6 This is a schematic diagram of the seat cushion shell of the foldable seat structure for the elderly mobility scooter of this utility model.

[0023] Figure 7 This is a schematic diagram of the foldable seat structure for the elderly mobility scooter of this utility model after folding.

[0024] In the diagram: 1. Column; 2. Base plate; 3. Rotating plate; 31. Connecting part; 32. Rotary locking device connecting part; 321. Locking window; 322. Locking connecting plate; 3221. Limiting end; 33. Rotary locking drive device connecting part; 331. Handle shaft connecting plate; 3311. Handle shaft hole; 332. Pull rope limiting plate; 3321. Pull rope hole; 34. Reinforcing protrusion; 4. Rotary locking device; 41. Rotating shaft; 42. Limiting shaft ; 43. Connecting shaft; 44. Locking block; 441. Locking part; 45. Spring; 5. Rotary locking drive device; 51. Pull handle; 511. Handle part; 512. Handle shaft connecting part; 52. Handle shaft; 53. Pull cord; 6. Seat cushion assembly; 61. Seat cushion; 62. Seat cushion housing; 621. Rotating plate recess; 622. Handle groove; 623. Rotary locking device groove; 63. Reflective strip; 7. Rotating pin; 8. Locking pin. Detailed Implementation

[0025] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0026] like Figure 1-6 The diagram shows a foldable seat structure for an elderly mobility scooter, comprising a column 1, a base plate 2, a rotating plate 3, a rotating locking device 4, a rotating locking drive device 5, and a seat cushion assembly 6. The base plate 2 is fixedly connected to the column 1, and the seat cushion assembly 6 is fixedly connected to the rotating plate 3. The rotating plate 3 is a thin plate with several reinforcing protrusions 34 stamped on it. The rotating plate 3 has symmetrical connecting portions 31 on both sides. The connecting portions 31 and one end of the base plate 2 are hinged by a rotating pin 7. The other end of the base plate 2 is provided with a locking pin 8. The rotating plate 3 has a rotating locking device connecting portion 32 and a rotating locking drive device connecting portion 33 at both ends of the connecting portion 31, respectively. The rotating locking drive device 5 is disposed on the rotating locking drive device connecting portion 33. The rotating locking device connecting portion 32 has a latching window 321. Latching connecting plates 322 extend upward from both sides of the latching window 321. The end of the latching connecting plate 322 away from the connecting portion 31 extends upward to a limit end 3221.

[0027] The rotary locking device 4 includes a rotating shaft 41, a limiting shaft 42, a connecting shaft 43, two locking blocks 44, and a spring 45. The two locking blocks 44 are symmetrically arranged and connected in the middle by the rotating shaft 41 and hinged at both ends of the rotating shaft 41 to the latch connecting plate 322. The upper parts of the two locking blocks 44 are connected by the limiting shaft 42, and both ends of the limiting shaft 42 can abut against the limiting end 3221. One end of the spring 45 is connected to one end of the rotating plate 3, and the other end is connected to the limiting shaft 42. The lower ends of the two locking blocks 44 are connected by the connecting shaft 43. The lower end of the locking block 44 extends towards the locking pin 8 and has a locking part 441 that matches the outer diameter surface of the locking pin 8. The locking block 44 can rotate around the rotating shaft 41 under the action of the rotary locking drive device 5, so that the locking part 441 is engaged with or disengaged from the locking pin 8, and the limiting shaft 42 abuts against or disengages from the limiting end 3221.

[0028] The rotary locking drive device 5 includes a pull handle 51, a handle shaft 52, and a pull rope 53. The pull handle 51 has a T-shaped structure, with a handle portion 511 and a handle shaft connecting portion 512. One end of the handle shaft 52 is fixedly connected to the handle shaft connecting portion 512. The rotary locking drive device connecting portion 33 has two handle shaft connecting plates 331 and a pull rope limiting plate 332 arranged sequentially along the other end of the rotating plate 3. The handle shaft connecting plate 331 has a handle shaft hole 3311. The diameter of the handle shaft hole 3311 is smaller than the tail end of the pull handle 51. The handle shaft 52 is disposed in the handle shaft hole 3311 and can move axially. The pull rope limiting plate 332 has a pull rope hole 3321. One end of the pull rope 53 is connected to the other end of the handle shaft 52, and the other end of the pull rope 53 passes through the pull rope hole 3321 and is connected to the limiting shaft 42.

[0029] The seat cushion assembly 6 includes a seat cushion 61 and a seat cushion housing 62. The seat cushion housing 62 has a reflective strip 63 at its tail. The lower surface of the seat cushion housing 62 has a rotating plate groove 621, a handle groove 622, and a rotation locking device groove 623. The rotating plate 3 is disposed in the rotating plate groove 621, the pull handle 51 is disposed in the handle groove 622, and the upper part of the rotation locking device 4 is disposed in the rotation locking device groove 623.

[0030] The use and folding principle of the foldable seat structure in this mobility scooter for the elderly are as follows:

[0031] In use, the rotating plate 3 is horizontal and fits against the large flat surface of the base plate 2. Under the action of the spring 45, the limiting shaft 42 is pressed against the limiting end 3221 of the locking connecting plate 322, and the limiting shaft 42 drives the locking block 44 to generate a... Figure 2The clockwise rotation around the pivot 41 shown in the diagram causes the locking part 441 of the locking block 44 to tightly grip the outer diameter surface of the locking pin 8, thereby ensuring a secure lock between the rotating plate 3 and the base plate 2.

[0032] When folding for storage, pull the handle 51, which in turn pulls the cord 53 to pull the limiting shaft 42, facing... Figure 2 The direction causes the limiting shaft 42 to drive the locking block 44 to rotate counterclockwise around the rotating shaft 41, thereby causing the limiting shaft 42 to disengage from the limiting end 3221 of the locking connecting plate 322, and the locking part 441 of the locking block 44 to disengage from the locking pin 8. This allows the rotating plate 3 to rotate counterclockwise, completing the flipping and folding of the rotating plate 3 and the seat cushion assembly 6 fixedly connected to the rotating plate 3. Figure 7 As shown.

[0033] When it needs to be used again, facing Figure 7 In terms of direction, simply rotate the seat cushion assembly 6 and the rotating plate 3 clockwise to drive the locking block 44 to rotate clockwise around the rotating shaft 41, press down the seat cushion assembly 6, so that the limiting shaft 42 and the rotating plate 3 are reset. Under the action of the spring 45, the limiting shaft 42 is kept close to the limiting end 3221 of the locking connecting plate 322, and the locking part 441 of the locking block 44 is tightly held on the outer diameter surface of the locking pin 8.

[0034] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A foldable seat structure for a geriatric walker, characterized by: The utility model provides a rotating locking device and a rotating locking drive device, and the rotating locking device comprises a rotating shaft, a limiting shaft, a connecting shaft, two lock blocks and a spring, the two lock blocks are symmetrically arranged and connected through the rotating shaft in the middle part and hinged on the lock connection plate through the rotating shaft at both ends, the upper part of the two lock blocks is connected through the limiting shaft and the limiting shaft can abut against the limiting end at both ends, one end of the spring is connected to one end of the rotating plate, and the other end is connected to the limiting shaft, the lower end of the two lock blocks is connected through the connecting shaft, the lower end of the lock block extends towards the locking pin and is provided with a locking part matched with the outer diameter surface of the locking pin, and the lock block can rotate around the rotating shaft under the action of the rotating locking drive device, so that the locking part tightly holds or separates from the locking pin and the limiting shaft abuts against or separates from the limiting end.

2. The foldable seat structure for a walker for the elderly according to claim 1, wherein: The rotating locking drive device comprises a pulling handle, a handle shaft and a pull rope, one end of the handle shaft is connected to the tail end of the pulling handle, one end of the pull rope is connected to the other end of the handle shaft, and the other end of the pull rope is connected to the limiting shaft.

3. The foldable seat structure for a walker for the elderly according to claim 2, wherein: The rotating locking drive device connection part has two handle shaft connection plates and a pull rope limiting plate inwards along the other end of the rotating plate in sequence, a handle shaft hole is formed in the handle shaft connection plate, the hole diameter of the handle shaft hole is smaller than the tail end of the pulling handle, the handle shaft is arranged in the handle shaft hole and can move in the axial direction, a pull rope hole is formed in the pull rope limiting plate, and the other end of the pull rope passes through the pull rope hole and is connected to the limiting shaft.

4. The foldable seat structure for a walker for the elderly according to claim 2, wherein: The cushion assembly comprises a cushion and a cushion shell, a rotating plate sink, a handle recess and a rotating locking device recess are formed in the lower plane of the cushion shell, the rotating plate is arranged in the rotating plate sink, the pulling handle is arranged in the handle recess, and the upper part of the rotating locking device is arranged in the rotating locking device recess.

5. The foldable seat structure for a walker for the elderly according to claim 1, wherein: The rotating plate is a thin plate, and a plurality of reinforcing convexes are stamped on the rotating plate.

6. The foldable seat structure for a walker for the elderly according to claim 2, wherein: The pulling handle is in T-shaped structure and comprises a handle part and a handle shaft connecting part, and one end of the handle shaft is fixedly connected to the handle shaft connecting part.

7. The foldable seat structure for a senior walker according to claim 4, wherein: The tail part of the cushion shell is provided with a reflective strip.

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