Vehicle seat for assisting an elderly person in changing from a sitting position to a standing position

Abstract

The utility model belongs to the technical field of vehicle seat, concretely relates to an auxiliary old people from the vehicle seat of sitting posture change standing, including slide rail, the sitting basin sliding support of sliding in slide rail, sitting basin framework, the sitting basin framework includes front, rear cross pipe and connects the left and right side plates at the both ends of front, rear cross pipe, and the front of left and right side plates is respectively hinged with front connecting rod, and the lower end of two front connecting rods is respectively hinged in the front upper portion of sitting basin sliding support, and the rear of two sitting basin sliding supports is respectively hinged in one end of the auxiliary standing connecting rod, and the other end of auxiliary standing connecting rod is hinged with one end of upper connecting rod, and the other end of upper connecting rod is respectively hinged in the both sides of rear cross pipe, and the middle part of two sitting basin sliding supports is hinged with screw rod motor on motor fixed pipe of connection, and the screw nut of screw rod of screw rod motor is hinged in the upper portion of auxiliary standing connecting rod, and the advantage is: simple structure, low in production cost, and convenient for popularization and application.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle seat technology, and in particular relates to a vehicle seat that assists the elderly to change from a sitting to a standing position. Background Technology

[0002] As people's living standards improve, the number of elderly people is also increasing, leading to a rise in assistive devices developed specifically for them. Recently, chairs with features that help the elderly stand have become very popular in the home seating industry. With elderly people traveling more frequently, there is also a growing demand for convenient and practical features that can be provided within the limited space of a car.

[0003] During our ride, we noticed that due to safety requirements to prevent passengers from falling into the seats, passengers were basically stuck in the seats. After a while, it became very inconvenient for elderly people to get up and get off the bus. They needed to be helped or even pulled by others. The cramped space caused great inconvenience to passengers and even posed a risk of shoulder dislocation or fracture for the elderly. Summary of the Invention

[0004] The purpose of this invention is to provide a vehicle seat that can assist the elderly in changing from a sitting to a standing position.

[0005] The purpose of this utility model is to solve the following problem:

[0006] A vehicle seat assisting the elderly in changing from a sitting to a standing position includes two parallel slide rails, a seat sliding bracket slidably mounted on the two slide rails, and a seat frame on the upper part of the seat sliding bracket. The seat frame includes a front horizontal tube, a rear horizontal tube, and left and right side plates connected to the two ends of the front and rear horizontal tubes. The front parts of the left and right side plates are respectively hinged to the upper end of a front connecting rod, and the lower ends of the two front connecting rods are respectively hinged to the upper front part of the seat sliding bracket. The rear parts of the two seat sliding brackets are respectively hinged to one end of an auxiliary standing connecting rod, and the other end of the auxiliary standing connecting rod is hinged to one end of an upper connecting rod. The other end of the upper connecting rod is respectively hinged to both sides of the rear horizontal tube. A lead screw motor is hinged to a motor fixing tube connected to the middle of the two seat sliding brackets. A screw sleeve screwed onto the lead screw motor is hinged to the upper part of the auxiliary standing connecting rod. The lead screw motor drives the rotation of the lead screw, which drives the screw sleeve to move up and down, thereby driving the lifting and lowering of the rear part of the seat frame through the auxiliary standing connecting rod and the upper connecting rod.

[0007] As a further optimization of the above technical solution, the upper end of the front connecting rod is tilted backward, the front connecting rod and the upper connecting rod are arranged parallel to each other, the upper end of the auxiliary lifting connecting rod is tilted forward and forms a V-shaped structure with the upper connecting rod, and the opening of the V-shaped structure is arranged facing backward.

[0008] As a further optimization of the above technical solution, the screw sleeve is hinged to the upper part of the auxiliary lifting link on the lower side of the hinge axis between the auxiliary lifting link and the upper link via a screw sleeve mounting seat.

[0009] As a further optimization of the above technical solution, a motor mounting base is welded onto the motor fixing tube, and the mounting lug of the lead screw motor is hinged to the motor mounting base.

[0010] As a further optimization of the above technical solution, the upper part of the auxiliary lifting link is provided with a forward-extending threaded sleeve mounting lug, and the threaded sleeve is hinged to the threaded sleeve mounting lug on the auxiliary lifting link through a threaded sleeve mounting seat.

[0011] As a further optimization of the above technical solution, the auxiliary lifting link and the upper link are hinged together by riveting.

[0012] As a further optimization of the above technical solution, the potty sliding bracket is welded to the motor fixing tube.

[0013] As a further optimization of the above technical solution, the vehicle seat is equipped with a control button that is electrically connected to the lead screw motor. Pressing the control button can control the lifting and lowering of the rear of the seat frame through the lead screw motor.

[0014] As a further optimization of the above technical solution, the vehicle seat is equipped with a vehicle speed sensor and / or displacement sensor and controller. When the vehicle is in motion, the controller receives the sensing signal transmitted by the vehicle speed sensor or displacement sensor and controls the disconnection of the power supply circuit of the lead screw motor.

[0015] As a further optimization of the above technical solution, a seat support net is hung on the front and rear horizontal tubes of the sitz bath frame. The seat support net is formed by interlacing and connecting longitudinal elastic rods arranged at horizontal intervals and transverse connecting pieces arranged at vertical intervals. The two ends of the elastic rods are respectively hung on the front and rear horizontal tubes.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. This utility model uses a lead screw motor to lift the rear of the seat frame, thereby tilting it forward to assist the elderly in standing. Because the lead screw of the lead screw motor is relatively long, the movement distance of the screw sleeve on the lead screw is also relatively long. This allows the rear of the seat frame to be lifted to a greater height through the transmission linkage, making it very convenient to assist the elderly in standing.

[0018] 2. This utility model uses a lead screw motor to drive the movement of the screw sleeve. When the lead screw motor is not moving, the screw sleeve will be locked at a certain position on the lead screw. In this way, the seat frame can be locked at any high position to facilitate the elderly to get up from the seat.

[0019] 3. This utility model utilizes the existing shock absorption structure of the seat, only adding a lead screw motor and a screw sleeve structure. The structure is simple, the production cost is low, and it is easy to promote and apply. Attached Figure Description

[0020] Figure 1 This is one of the three-dimensional schematic diagrams of this utility model.

[0021] Figure 2 yes Figure 1 A magnified view of a portion of the image.

[0022] Figure 3 This is the second three-dimensional schematic diagram of this utility model.

[0023] Figure 4 yes Figure 3 A magnified view of a portion of the image.

[0024] Figure 5 This is the third three-dimensional schematic diagram of this utility model.

[0025] Figure 6 This is a schematic diagram illustrating the adjustment process of the sitz bath frame of this utility model from a concave to a forward tilted state. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figures 1-6 :

[0027] A vehicle seat assisting the elderly in transitioning from a sitting to a standing position includes two parallel slide rails 10, a seat basin sliding bracket 11 slidably mounted on the two slide rails 10, and a seat basin frame on the upper part of the seat basin sliding bracket 11. The seat basin frame includes a front horizontal tube 14, a rear horizontal tube 13, and left and right side plates 12 connected to the two ends of the front and rear horizontal tubes 13. The front parts of the left and right side plates 12 are respectively hinged to the upper end of a front connecting rod 16, and the lower ends of the two front connecting rods 16 are respectively hinged to the upper front part of the seat basin sliding bracket 11. The rear parts of the two seat basin sliding brackets 11 are respectively hinged to the auxiliary standing position. One end of the connecting rod 24 and the other end of the auxiliary lifting connecting rod 24 are hinged to one end of the upper connecting rod 25. The other end of the upper connecting rod 25 is respectively hinged to both sides of the rear horizontal tube 13. The motor fixing tube 15 connected to the middle of the two seat sliding brackets 11 is hinged to the lead screw motor 20. The screw sleeve 21 screwed on the lead screw 23 of the lead screw motor 20 is hinged to the upper part of the auxiliary lifting connecting rod 24. The lead screw motor 20 drives the rotation of the lead screw 23, which drives the screw sleeve 21 to move up and down, thereby driving the lifting and lowering of the rear part of the seat frame through the auxiliary lifting connecting rod 24 and the upper connecting rod 25.

[0028] As a further optimization of the above technical solution, the upper end of the front connecting rod 16 is tilted backward, the front connecting rod 16 and the upper connecting rod 25 are arranged parallel to each other, the upper end of the auxiliary lifting connecting rod 24 is tilted forward and forms a V-shaped structure with the upper connecting rod 25, and the opening of the V-shaped structure is arranged facing backward.

[0029] As a further optimization of the above technical solution, the screw sleeve 21 is hinged to the upper part of the auxiliary lifting link 24 on the lower side of the hinge shaft 26 between the auxiliary lifting link 24 and the upper link 25 via the screw sleeve mounting seat 22.

[0030] As a further optimization of the above technical solution, a motor mounting base 28 is welded onto the motor fixing tube 15, and the mounting lug of the lead screw motor 20 is hinged to the motor mounting base 28.

[0031] As a further optimization of the above technical solution, the upper part of the auxiliary lifting link 24 is provided with a forward-extending threaded sleeve mounting lug 27, and the threaded sleeve 21 is hinged to the threaded sleeve mounting lug 27 on the auxiliary lifting link 24 through the threaded sleeve mounting seat 22.

[0032] As a further optimization of the above technical solution, the auxiliary lifting link 24 and the upper link 25 are hinged together by riveting.

[0033] As a further optimization of the above technical solution, the potty sliding bracket 11 is welded to the motor fixing tube 15.

[0034] As a further optimization of the above technical solution, the vehicle seat is equipped with a control button (not shown in the figure) that is electrically connected to the lead screw motor 20. Pressing the control button can control the lifting and lowering of the rear of the seat frame through the lead screw motor 20.

[0035] As a further optimization of the above technical solution, the vehicle seat is equipped with a vehicle speed sensor and / or displacement sensor and a controller. When the vehicle is moving, the controller receives the sensing signal transmitted by the vehicle speed sensor or displacement sensor and controls the disconnection of the power supply circuit of the lead screw motor.

[0036] As a further optimization of the above technical solution, a seat support net is hung on the front horizontal tube 14 and the rear horizontal tube 13 of the seat frame. The seat support net is formed by interlacing and connecting longitudinal elastic rods 17 arranged laterally and longitudinal connecting pieces 18 arranged laterally. The two ends of the elastic rods 17 are respectively hung on the front horizontal tube 14 and the rear horizontal tube 13. A driving device 30 for driving the two seat sliding supports 11 to slide back and forth is provided on the two slide rails 10.

[0037] The method of using this utility model is as follows: When an elderly person sitting in the seat needs assistance to stand up, pressing the button starts the lead screw motor. The motor rotates, causing the lead screw to rotate, which in turn pushes the nut on the lead screw to move along the lead screw. The movement of the nut causes the auxiliary standing linkage 24 connected to the nut to rotate, causing the rear of the seat to rise and tilt forward, thus assisting the elderly person sitting in the seat to stand up. When the car is moving, this function will be locked by the car's speed sensor or displacement sensor, and the function cannot be used to prevent injury to passengers.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that simple substitutions or modifications can still be made to the technical solutions or technical features described in the foregoing embodiments, and these simple substitutions or modifications do not cause the essence of the corresponding technical solutions to deviate from the spirit and substance of the technical solutions of the embodiments of this utility model, and are still within the protection scope of this utility model.

Claims

1. A vehicle seat for assisting the elderly to change from a sitting to a standing position, comprising two parallel slide rails, a seat sliding bracket slidably mounted on the two slide rails, and a seat frame on the upper part of the seat sliding bracket, characterized in that: The basin frame includes a front horizontal tube, a rear horizontal tube, and left and right side plates connected to both ends of the front and rear horizontal tubes. The front parts of the left and right side plates are respectively hinged to the upper end of a front connecting rod, and the lower ends of the two front connecting rods are respectively hinged to the upper front part of the basin sliding bracket. The rear parts of the two basin sliding brackets are respectively hinged to one end of an auxiliary lifting connecting rod. The other end of the auxiliary lifting connecting rod is hinged to one end of an upper connecting rod. The other end of the upper connecting rod is respectively hinged to both sides of the rear horizontal tube. A lead screw motor is hinged to the motor fixing tube connected to the middle of the two basin sliding brackets. The screw sleeve screwed to the lead screw motor is hinged to the upper part of the auxiliary lifting connecting rod. The lead screw motor drives the rotation of the lead screw, which drives the screw sleeve to move up and down, thereby driving the lifting and lowering of the rear part of the basin frame through the auxiliary lifting connecting rod and the upper connecting rod.

2. The vehicle seat for assisting the elderly to change from a sitting to a standing position according to claim 1, characterized in that: The upper end of the front link is tilted backward, and the front link and the upper link are arranged parallel to each other. The upper end of the auxiliary lifting link is tilted forward and forms a V-shaped structure with the upper link. The opening of the V-shaped structure is arranged facing backward.

3. The vehicle seat for assisting the elderly to change from a sitting to a standing position according to claim 1, characterized in that: The threaded sleeve is hinged to the upper part of the auxiliary lifting link on the lower side of the hinge shaft between the auxiliary lifting link and the upper link via a threaded sleeve mounting seat.

4. A vehicle seat for assisting the elderly to change from a sitting to a standing position according to claim 1, characterized in that: A motor mounting base is welded onto the motor fixing tube, and the mounting lug of the lead screw motor is hinged to the motor mounting base.

5. The vehicle seat for assisting an elderly person to change from a sitting position to a standing position according to claim 1, characterized by: The upper part of the auxiliary lifting link is provided with a forward-extending threaded sleeve mounting lug, and the threaded sleeve is hinged to the threaded sleeve mounting lug on the auxiliary lifting link through a threaded sleeve mounting seat.

6. A vehicle seat according to claim 1 for assisting the elderly to change from a sitting to a standing position, characterized in that: The auxiliary lifting link and the upper link are hinged together by riveting.

7. A vehicle seat according to claim 1 for assisting the elderly to change from a sitting to a standing position, characterized in that: The sliding support for the sitz bath is welded to the motor mounting tube.

8. The vehicle seat to assist an elderly person to change from a sitting position to a standing position according to claim 1, characterized by: The vehicle seat is equipped with a control button that is electrically connected to a lead screw motor. Pressing the control button can control the lifting and lowering of the rear of the seat frame via the lead screw motor.

9. The vehicle seat to assist an elderly person to change from a sitting position to a standing position according to claim 1, characterized by: The vehicle seat is equipped with a vehicle speed sensor and / or displacement sensor and controller. When the vehicle is in motion, the controller receives the sensing signal transmitted by the vehicle speed sensor or displacement sensor and controls the disconnection of the power supply circuit of the lead screw motor.

10. The vehicle seat to assist an elderly person to change from a sitting position to a standing position according to claim 1, characterized by: The front and rear horizontal tubes of the sitz bath frame are equipped with a seat support net. The seat support net is formed by interlacing and connecting longitudinal elastic rods that are spaced laterally and longitudinal connecting pieces that are spaced laterally. The two ends of the elastic rods are respectively hung on the front and rear horizontal tubes.

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