A lift chair apparatus and a vehicle-mounted receiving mechanism

Abstract

The utility model relates to the technical field of welfare car, concretely relates to a lifting seat device and vehicle-mounted receiving mechanism, lifting seat device includes seat, chassis, a pair of articulated support and lifting drive arrangement, lifting drive arrangement is assembled in the bottom of seat body, includes electric push rod subassembly and the rotating shaft driven by electric push rod subassembly, when push rod extends the cylinder, the distance of seat and chassis in vertical direction becomes big, lifting seat device is in unfolded state, when push rod retracts the cylinder, the distance of seat and chassis in vertical direction becomes small, lifting seat device is in the state of folding. Lifting seat device and vehicle-mounted receiving mechanism solve the technical problems that welfare seat itself cannot adjust height and welfare seat and receiving device on the vehicle body are not easy to align when docking in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of welfare vehicle technology, specifically to a lifting seat device and a vehicle-mounted support mechanism. Background Technology

[0002] The existing welfare seats have the problem that the seat height cannot be adjusted according to the user's height, and the welfare seats are not easy to align with the support devices on the vehicle body. Summary of the Invention

[0003] In order to solve the technical problems in the prior art that the height of the welfare seat itself cannot be adjusted and that the welfare seat is not easy to align with the support device on the vehicle body, this application proposes a lifting seat device and a vehicle-mounted support mechanism, which respectively solve the above two technical problems.

[0004] The technical solution adopted by this utility model to solve its technical problem is: This utility model provides a height-adjustable seat device, comprising: a seat, the seat including a seat body and a backrest, with first connecting pieces arranged on both sides of the seat body, the end of the first connecting piece away from the backrest forming a first slide rail arranged in a horizontal direction, and the end of the first connecting piece near the backrest forming a first hinge end; a chassis, the chassis being disposed at the bottom of the seat and facing the seat body, with second connecting pieces arranged on both sides of the chassis, the end of the second connecting piece away from the backrest forming a second slide rail arranged in a horizontal direction, and the end of the second connecting piece near the backrest forming a second hinge end; a pair of hinge brackets, the hinge brackets being movably connected between the seat body and the chassis, the hinge brackets including a driving rod and a driven rod, the driving rod and the driven rod being cross-arranged and hinged at the intersection, the top end of the driving rod being hinged to the first hinge end of the first connecting piece, the bottom end of the driving rod being movably engaged with the second slide rail, and the driven rod... The top end of the driven rod is movably fitted onto the first slide rail, and the bottom end of the driven rod is hinged to the second hinge end of the second connecting piece; the lifting drive device is mounted on the bottom of the seat body and includes an electric push rod assembly and a rotating shaft driven by the electric push rod assembly. The rotating shaft is rotatably fitted onto the first hinge end, and the two ends of the rotating shaft are respectively fixed to the top ends of the two driving rods. The electric push rod assembly includes a cylinder with its tail end hinged to the bottom of the seat body and a push rod that can extend from the front end of the cylinder. The end of the push rod away from the cylinder is hinged with a lug. The force-bearing end of the lug is hinged to the push rod, and the driving end of the lug is fixedly connected to the shaft of the rotating shaft. When the push rod extends out of the cylinder, the vertical distance between the seat and the chassis increases, and the lifting seat device is in the unfolded state. When the push rod retracts into the cylinder, the vertical distance between the seat and the chassis decreases, and the lifting seat device is in the retracted state.

[0005] Furthermore, the bottom of the chassis is equipped with an electric roller device.

[0006] Furthermore, a left armrest and a right armrest are respectively arranged at corresponding positions on both sides of the seat, and a lifting controller for controlling the lifting drive device and a walking controller for controlling the electric roller device are arranged at the right armrest.

[0007] Furthermore, the angle of the backrest relative to the seat is adjustable, and a backrest angle adjustment controller for adjusting the backrest is located on the right armrest.

[0008] Furthermore, the bottom end of the active rod is hinged with an active slider, which is slidably engaged with the second slide rail; the top end of the driven rod is hinged with a driven slider, which is slidably engaged with the first slide rail.

[0009] Another aspect of this utility model provides a vehicle-mounted receiving mechanism, comprising: the aforementioned lifting seat device, wherein a receiving space is formed between the seat body and the chassis of the lifting seat device, guide plates are arranged on both sides of the receiving space, the guide plates are fixed to the bottom of the seat body, and positioning grooves are arranged on the top of both sides of the receiving space, the positioning grooves being formed at the bottom of the seat body; and a lifting plate, the lifting plate being movably disposed in the vehicle body for inserting or removing the lifting seat device from the vehicle body, wherein positioning strips that can be fitted into the positioning grooves are detachably connected to both sides of the top surface of the lifting plate, the positioning strips protruding horizontally from the bottom of the seat body. When the lifting plate is connected to the unfolded lifting seat device on both sides, the lifting plate is inserted from the end of the receiving space near the backrest. During the insertion process, the positioning strip contacts the guide plate. Under the guidance and alignment of the guide plate, the lifting plate is fully inserted into the receiving space. After insertion, the lifting plate is raised. During the raising process, the positioning strip enters the positioning groove and contacts the seat body before the top surface of the lifting plate. At the same time as the lifting, the lifting drive device of the lifting seat device is activated to bring the chassis closer to the seat body to fold the lifting seat device. After folding, the lifting plate connects the lifting seat device to the vehicle body.

[0010] Furthermore, it also includes an insertion positioning sensing module, which includes a magnetic induction switch and a magnetic strip. The magnetic strip is fixed to the bottom of the seat and arranged at the end of the insertion space away from the backrest. The magnetic induction switch is fixed to the end of the insertion lifting plate that first enters the insertion space. When the insertion lifting plate is fully inserted into the insertion space, the magnetic induction switch and the magnetic strip contact to generate a signal to confirm that the insertion lifting plate is inserted in place.

[0011] Furthermore, it also includes a lifting-in-place module, which includes a contact switch and a contact block. The contact block is fixed to the bottom of the seat body and arranged at the end of the insertion space away from the backrest. The contact switch is fixed to the end of the lifting plate that first enters the insertion space. During the process of connecting to the lifting seat device in the unfolded state, after the magnetic induction switch and the magnetic strip contact to generate a signal to confirm that the lifting plate is inserted in place, the lifting plate is raised until the contact switch and the contact block contact to generate a signal to confirm that the lifting plate is raised in place.

[0012] Furthermore, the positioning strip is made of a wear-resistant non-metallic material.

[0013] Based on the above technical solution, the technical effects that this utility model can achieve are as follows: The lifting seat device of this utility model has an electric push rod of the lifting drive device extending out of the cylinder. The push rod extending out of the cylinder drives the lug to displace the force-bearing end of the lug, that is, to make the drive end of the lug rotate. The drive end of the lug is fixedly connected to the rotating shaft. After the lug rotates, it drives the rotating shaft to rotate. The rotating shaft is fixedly connected to the top end of the drive rod. After the top end of the rotating shaft rotates, the bottom end of the drive rod will move horizontally on the second slide rail. At this time, the rod body of the drive rod will move in a telescopic motion, and the vertical distance between the seat and the chassis connected to the two ends of the drive rod will change. All connections of the driven rod are movable connections, and they will follow the movement during the movement of the drive rod without interfering with the vertical movement of the seat and the chassis. Furthermore, the push rod and the lug of the cylinder are both arranged on the side close to the backrest, so they will not touch the person sitting on the seat during the movement, making it safer and more reliable. This utility model's vehicle-mounted receiving mechanism can be used to connect or remove a lifting seat device from a vehicle body. When connecting to the lifting seat device in its unfolded state, the insertion plate is inserted into the lifting seat device. When the insertion plate is inserted into the receiving space, the positioning strip on the insertion plate contacts the guide plates on both sides. The guide plates limit the left and right sides of the insertion plate to achieve guiding alignment. During the lifting process of the insertion plate, the positioning strip enters the positioning groove for secondary positioning. Moreover, the positioning strip contacts the seat body before the top surface of the insertion plate, reducing the contact between the main body of the insertion plate and the seat body. When the positioning strip is damaged, only the positioning strip needs to be replaced, reducing the operating cost of the mechanism. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the lifting seat device of this utility model in the unfolded state; Figure 2 This is an external schematic diagram of the lifting seat device of this utility model; Figure 3 This is a schematic diagram of the lifting seat device of this utility model in the retracted state; Figure 4 This is a schematic diagram of the lifting drive device of the lifting seat device of this utility model; Figure 5 This is a schematic diagram of the vehicle-mounted receiving mechanism of this utility model when the lifting plate is about to be inserted into the lifting seat device; Figure 6 This is a schematic diagram of the insertion and lifting plate of this utility model; Figure 7 This is a schematic diagram showing the insertion of the lifting plate of this utility model into place; Figure 8 This is a partial enlarged view of the insert plate of this utility model when it is inserted into place.

[0015] In this utility model: 1-seat, 11-seat body, 111-first connecting piece, 1111-first slide rail, 12-backrest, 13-lifting controller, 14-walking controller, 15-backrest angle adjustment controller; 2-Chassis, 21-Second connecting piece, 211-Second slide rail, 22-Electric roller device; 3-Hinged bracket, 31-Driving rod, 311-Driving slider, 32-Driven rod, 321-Driven slider; 4-Lifting drive device, 41-Rotating shaft, 42-Cylinder, 43-Push rod, 44-Hanging lug; 5-Socket space, 51-Guide plate, 52-Positioning groove; 6- Lifting plate, 61- Positioning strip; 7 - Position sensing module; 71 - Magnetic induction switch; 8-Lift-in-position module, 81-Contact switch, 82-Contact block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] like Figure 1-8As shown, this utility model provides a lifting seat device, including a seat 1, a chassis 2, a pair of hinged brackets 3, and a lifting drive device 4. The seat 1 includes a seat body 11 and a backrest 12. First connecting pieces 111 are arranged on both sides of the seat body 11. A first slide rail 1111 is formed at the end of the first connecting piece 111 away from the backrest 12, arranged horizontally. The end of the first connecting piece 111 near the backrest 12 forms a first hinge end. The chassis 2 is disposed at the bottom of the seat 1 and directly opposite the seat body 11. Both sides of the chassis 2... A second connecting piece 21 is provided, with a second slide rail 211 arranged horizontally formed at the end of the second connecting piece 21 away from the backrest 12, and a second hinge end formed at the end of the second connecting piece 21 near the backrest 12. A hinge bracket 3 is movably connected between the seat body 11 and the chassis 2. The hinge bracket 3 includes a driving rod 31 and a driven rod 32, which are cross-arranged and hinged at their intersection. The top end of the driving rod 31 is hinged to the first hinge end of the first connecting piece 111. The bottom end is movably fitted onto the second slide rail 211, and the top end of the driven rod 32 is movably fitted onto the first slide rail 1111. The bottom end of the driven rod 32 is hinged to the second hinge end of the second connecting piece 21. The lifting drive device 4 is assembled at the bottom of the base 11 and includes an electric push rod assembly and a rotating shaft 41 driven by the electric push rod assembly. The rotating shaft 41 is rotatably fitted onto the first hinge end, and both ends of the rotating shaft 41 are respectively fixed to the top ends of the two driving rods 31. The electric push rod assembly includes a cylinder whose tail end is hinged to the bottom of the base 11. 42 and a push rod 43 that can extend from the head end of the cylinder 42. The end of the push rod 43 away from the cylinder 42 is hinged with a lug 44. The force-bearing end of the lug 44 is hinged to the push rod 43. The driving end of the lug 44 is fixedly connected to the shaft of the rotating shaft 41. When the push rod 43 extends out of the cylinder 42, the vertical distance between the seat 1 and the chassis 2 increases, and the lifting seat device is in the unfolded state. When the push rod 43 retracts into the cylinder 42, the vertical distance between the seat 1 and the chassis 2 decreases, and the lifting seat device is in the retracted state.

[0018] In one specific embodiment of this utility model, the bottom of the chassis 2 is equipped with an electric roller device 22 so that the lifting seat device can move on the ground.

[0019] In one specific embodiment of this utility model, a left armrest and a right armrest are respectively arranged at corresponding positions on both sides of the seat 1. The right armrest is equipped with a lifting controller 13 for controlling the lifting drive device 4 and a walking controller 14 for controlling the electric roller device 22, so as to facilitate operation.

[0020] like Figure 4 As shown, in a preferred embodiment of the present invention, the angle of the backrest 12 relative to the seat 11 is adjustable, and the backrest angle adjustment controller 15 for adjusting the backrest 12 is disposed at the right armrest.

[0021] The aforementioned lifting controller 13, walking controller 14, and backrest angle adjustment controller 15 can all be manually controlled.

[0022] In one specific embodiment of this utility model, the bottom end of the active rod 31 is hinged with an active slider 311, which is slidably engaged with the second slide rail 211; the top end of the driven rod 32 is hinged with a driven slider 321, which is slidably engaged with the first slide rail 1111.

[0023] like Figure 1-8 As shown, this utility model also provides a vehicle-mounted receiving mechanism, including the aforementioned lifting seat device and the insertion plate 6. A receiving space 5 is formed between the seat body 11 and the chassis 2 of the lifting seat device. Guide plates 51 are arranged on both sides of the receiving space 5, and the guide plates 51 are fixed to the bottom of the seat body 11. Meanwhile, positioning grooves 52 are arranged on the top of both sides of the receiving space 5, and the positioning grooves 52 are formed at the bottom of the seat body 11. The insertion plate 6 is movably disposed within the vehicle body for connecting or removing the lifting seat device from the vehicle body. Positioning strips 61, which can be fitted into the positioning grooves 52, are detachably connected to both sides of the top surface of the insertion plate 6. The positioning strips 61 are horizontally oriented... The upper part protrudes from the left and right sides of the insertion plate 6. When the lifting seat device in the unfolded state is connected, the insertion plate 6 is inserted from the end of the receiving space 5 near the backrest 12. During the insertion process, the positioning strip 61 contacts the guide plate 51. Under the guidance and alignment of the guide plate 51, it is fully inserted into the receiving space 5. After being inserted in place, the insertion plate 6 is raised. During the raising process, the positioning strip 61 enters the positioning groove 52 and contacts the seat body 11 before the top surface of the insertion plate 6. At the same time as the raising, the lifting drive device 4 of the lifting seat device is started to bring the chassis 2 close to the seat body 11 to fold the lifting seat device. After folding, the insertion plate 6 connects the lifting seat device to the vehicle body.

[0024] In one specific embodiment of this utility model, it further includes an insertion positioning sensing module 7. The insertion positioning sensing module 7 includes a magnetic induction switch 71 and a magnetic strip. The magnetic strip is fixed to the bottom of the seat body 11 and arranged at the end of the insertion space 5 away from the backrest 12. The magnetic induction switch 71 is fixed at the end of the insertion lifting plate 6 that first enters the insertion space 5. When the insertion lifting plate 6 is fully inserted into the insertion space 5, the magnetic induction switch 71 and the magnetic strip contact to generate a signal to confirm that the insertion lifting plate 6 is inserted in place.

[0025] In one specific embodiment of this utility model, a lifting-in-place module 8 is also included. The lifting-in-place module 8 includes a contact switch 81 and a contact block 82. The contact block 82 is fixed to the bottom of the seat body 11 and arranged at the end of the insertion space 5 away from the backrest 12. The contact switch 81 is fixed at the end of the insertion plate 6 that first enters the insertion space 5. During the process of connecting to the lifting seat device in the unfolded state, after the magnetic induction switch 71 and the magnetic strip contact to generate a signal to confirm that the insertion plate 6 is inserted in place, the insertion plate 6 is raised until the contact switch 81 and the contact block 82 contact to generate a signal to confirm that the insertion plate 6 is raised in place.

[0026] In a preferred embodiment of this utility model, the positioning strip 61 is made of wear-resistant non-metallic material, which can reduce noise. The positioning strip 61 is replaced individually after wear, reducing the operating cost of the mechanism.

[0027] It should be understood that the specific embodiments described above are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A lifting seat device, characterized in that, include: Seat (1), the seat (1) includes a seat body (11) and a backrest (12), both sides of the seat body (11) are provided with first connecting pieces (111), the end of the first connecting piece (111) away from the backrest (12) is formed with a first slide rail (1111) arranged in the horizontal direction, and the end of the first connecting piece (111) near the backrest (12) is formed as a first hinge end; The chassis (2) is disposed at the bottom of the seat (1) and directly opposite the seat body (11). The chassis (2) is provided with second connecting pieces (21) on both sides. The end of the second connecting piece (21) away from the backrest (12) forms a second slide rail (211) arranged in the horizontal direction. The end of the second connecting piece (21) near the backrest (12) forms a second hinge end. A pair of hinged brackets (3) are movably connected between the seat (11) and the chassis (2). The hinged bracket (3) includes an active rod (31) and a driven rod (32). The active rod (31) and the driven rod (32) are cross-configured and hinged at the intersection. The top end of the active rod (31) is hinged to the first hinge end of the first connecting piece (111). The bottom end of the active rod (31) is movably engaged with the second slide rail (211). The top end of the driven rod (32) is movably engaged with the first slide rail (1111). The bottom end of the driven rod (32) is hinged to the second hinge end of the second connecting piece (21). A lifting drive device (4) is mounted on the bottom of the base (11) and includes an electric push rod assembly and a rotating shaft (41) driven by the electric push rod assembly. The rotating shaft (41) is rotatably fitted to the first hinge end. The two ends of the rotating shaft (41) are respectively fixed to the top ends of the two active rods (31). The electric push rod assembly includes a cylinder (42) with its tail end hinged to the bottom of the base (11) and a push rod (43) that can extend from the front end of the cylinder (42). The push rod (43) is away from the cylinder (42). One end of the device is hinged with a lug (44), the force-bearing end of the lug (44) is hinged to the push rod (43), and the driving end of the lug (44) is fixedly connected to the shaft of the rotating shaft (41). When the push rod (43) extends out of the cylinder (42), the distance between the seat (1) and the chassis (2) in the vertical direction increases, and the lifting seat device is in the unfolded state. When the push rod (43) retracts into the cylinder (42), the distance between the seat (1) and the chassis (2) in the vertical direction decreases, and the lifting seat device is in the retracted state.

2. The lift chair apparatus of claim 1, wherein, The chassis (2) is equipped with an electric roller device (22) at the bottom.

3. The lift chair apparatus of claim 2, wherein, The seat (1) is equipped with a left armrest and a right armrest at corresponding positions on both sides. The right armrest is equipped with a lifting controller (13) that controls the operation of the lifting drive device (4) and a walking controller (14) that controls the electric roller device (22).

4. The lift chair apparatus of claim 3, wherein, The angle of the backrest (12) relative to the seat (11) is adjustable, and a backrest angle adjustment controller (15) for adjusting the backrest (12) is located at the right armrest.

5. The lift chair apparatus of claim 1, wherein, The bottom end of the active rod (31) is hinged with an active slider (311), which is slidably engaged with the second slide rail (211); the top end of the driven rod (32) is hinged with a driven slider (321), which is slidably engaged with the first slide rail (1111).

6. A vehicle-mounted receiving mechanism characterized by comprising: include: According to any one of claims 1-5, a receiving space (5) is formed between the seat body (11) and the chassis (2) of the lifting seat device. Guide plates (51) are arranged on both sides of the receiving space (5). The guide plates (51) are fixed to the bottom of the seat body (11). Meanwhile, positioning grooves (52) are arranged on the top of both sides of the receiving space (5). The positioning grooves (52) are formed at the bottom of the seat body (11). A lifting plate (6) is movably disposed within the vehicle body for inserting or removing the lifting seat device from the vehicle body. Positioning strips (61) that can fit into the positioning groove (52) are detachably connected to both sides of the top surface of the lifting plate (6). The positioning strips (61) protrude horizontally from the left and right sides of the lifting plate (6). When inserting the lifting seat device in its unfolded state, the lifting plate (6) is inserted from the end of the receiving space (5) near the backrest (12). During insertion, the positioning strips (61) and the guide plate... (51) Contact, under the guiding alignment of the guide plate (51), it is fully inserted into the socket space (5). After insertion, the lifting plate (6) is raised. During the lifting process, the positioning strip (61) enters the positioning groove (52) and contacts the seat body (11) before the top surface of the lifting plate (6). At the same time as the lifting, the lifting drive device (4) of the lifting seat device is started to bring the chassis (2) closer to the seat body (11) so as to fold the lifting seat device. After folding, the lifting plate (6) connects the lifting seat device to the vehicle body.

7. The vehicle-mounted receiving mechanism according to claim 6, characterized in that, It also includes an insertion position sensing module (7), which includes a magnetic induction switch (71) and a magnetic strip. The magnetic strip is fixed to the bottom of the seat (11) and arranged at the end of the insertion space (5) away from the backrest (12). The magnetic induction switch (71) is fixed to the end of the insertion lifting plate (6) that first enters the insertion space (5). When the insertion lifting plate (6) is fully inserted into the insertion space (5), the magnetic induction switch (71) and the magnetic strip contact to generate a signal to confirm that the insertion lifting plate (6) is inserted in place.

8. The vehicle-mounted docking mechanism of claim 7, wherein, It also includes a lifting-in-place module (8), which includes a contact switch (81) and a contact block (82). The contact block (82) is fixed to the bottom of the seat body (11) and arranged at the end of the insertion space (5) away from the backrest (12). The contact switch (81) is fixed to the end of the insertion plate (6) that first enters the insertion space (5). During the process of connecting the lifting seat device in the unfolded state, after the magnetic induction switch (71) and the magnetic strip contact to generate a signal to confirm that the insertion plate (6) is inserted in place, the insertion plate (6) is raised until the contact switch (81) and the contact block (82) contact to generate a signal to confirm that the insertion plate (6) is raised in place.

9. The vehicle-mounted docking mechanism of claim 6, wherein, The positioning strip (61) is made of wear-resistant non-metallic material.

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