A flexible cushion stowage device

Abstract

The utility model relates to a kind of flexible cushion folding device, including frame, transmission mechanism, flexible cushion and force block;Transmission mechanism is installed on frame;Transmission mechanism includes transmission wheel and transmission belt;Flexible cushion is installed in the surface of transmission belt side, force block is installed in the side of frame away from ground;Frame is cuboid as a whole, flexible cushion includes first state and second state, when flexible cushion is in first state, located the surface of frame away from ground, and flexible cushion is in contact with force block;When flexible cushion is in second state, located the side of frame.Compared with prior art, the utility model has flexible cushion in first state and second state, respectively in the top surface and side surface of frame, with sufficient space, can accommodate thicker flexible cushion;Force block is in contact with flexible cushion, whether user is seated on flexible cushion can be judged by detecting the pressure supported on flexible cushion, provide basis for controlling the state of flexible cushion and other advantages.

Description

Technical Field

[0001] This utility model relates to an auxiliary device, and more particularly to a flexible seat cushion retraction device. Background Technology

[0002] There are many situations in life where seat cushions need to be folded up. For example, in the field of rehabilitation assistive devices and intelligent medical equipment, there have long been technical pain points in the toilet assistance needs of patients with lower limb dysfunction (such as spinal cord injury, stroke sequelae, etc.): traditional seat cushion designs mostly rely on manual folding or rigid mechanical structures, which have problems such as complicated operation, easy jamming, and high maintenance costs.

[0003] A search revealed that patent announcement number CN219662226U discloses an orthopedic nursing walking aid device, specifically: a sliding assembly fixed to the inner side of a support frame, with the end of the seat cushion slidably connected to the sliding assembly; a drive component mounted on the sliding assembly and connected to the seat cushion via a transmission mechanism, configured to drive the end of the seat cushion to slide along the sliding assembly, thereby unfolding or retracting the seat cushion. When a person needs to sit down and rest, the drive component drives the seat cushion to slide along the sliding assembly, unfolding the seat cushion, allowing the person to sit on it and rest. The person only needs to activate the servo motor to control the seat cushion. However, this prior art is only suitable for unfolding and retracting relatively thin seat cushions.

[0004] In summary, the technical problem that needs to be solved is how to design a device that can be used to retract and extend thicker seat cushions. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology, which is not suitable for the storage and folding of thicker cushions, and to provide a flexible cushion storage device.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] According to one aspect of the present invention, a flexible seat cushion retraction device is provided, comprising a frame, a transmission mechanism, a flexible seat cushion, and a force measuring block; the transmission mechanism is mounted on the frame; the transmission mechanism includes a transmission wheel and a transmission belt mounted on the transmission wheel; the flexible seat cushion is mounted on one side surface of the transmission belt, and the force measuring block is mounted on the side of the frame away from the ground; the frame is generally rectangular, and the flexible seat cushion includes a first state and a second state; when the flexible seat cushion is in the first state, it is located on the surface of the frame away from the ground, and the flexible seat cushion is in contact with the force measuring block; when the flexible seat cushion is in the second state, it is located on the side of the frame.

[0008] As a preferred technical solution, the transmission wheel includes a drive wheel and two toothed transmission wheels, and the transmission belt is a synchronous belt; the synchronous belt is sleeved on the drive wheel and the two toothed transmission wheels; the drive wheel is located at the junction of the surface and side of the frame away from the ground, and the two toothed transmission wheels are respectively located on the surface and side of the frame away from the ground.

[0009] As a preferred technical solution, the transmission wheel further includes a toothless transmission wheel, which is installed on the outside of the synchronous belt; the synchronous belt includes two L-shaped sections, one of which is parallel to the surface of the frame away from the ground, and the other of which is located on the side of the frame.

[0010] As a preferred technical solution, the toothless transmission wheel is a silicone toothless transmission wheel.

[0011] As a preferred technical solution, the frame is open on three sides, one side of which overlaps with the ground, one side holds the cushion in the first state, and the other side holds the cushion in the second state.

[0012] As a preferred technical solution, the device further includes a controller, which is equipped with a switch and the switch is connected to the transmission mechanism.

[0013] As a preferred technical solution, the controller is connected to the frame via an elastic rope, the controller is equipped with a magnetic block, the frame is equipped with an iron block, and the controller is attached to the iron block of the frame via the magnetic block.

[0014] As a preferred technical solution, the force measuring block has a built-in force sensor, and the force sensor is connected to the controller.

[0015] As a preferred technical solution, the force measuring block is provided with a hook on one side, and the flexible seat cushion is provided with a groove on the surface near the frame; when the flexible seat cushion is in the first state and the pressure on the seat cushion is greater than 0, the hook is engaged in the groove.

[0016] As a preferred technical solution, the transmission mechanism is located on one side of the flexible seat cushion.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1) When the flexible seat cushion of this utility model is in the first state and the second state, it is located on the top surface and the side of the frame, respectively, with sufficient space to accommodate a relatively thick flexible seat cushion; the force measuring block is in contact with the flexible seat cushion, and the user can be judged whether the user is sitting on the flexible seat cushion by detecting the pressure on the flexible seat cushion, thus providing a basis for controlling the state of the flexible seat cushion.

[0019] 2) The transmission mechanism of this utility model realizes the change of the seat state through synchronous belt, driving wheel and driven wheel, and the transmission is smooth; the toothed driven wheel and the toothless driven wheel form a dual-mode transmission, which has low noise and high transmission efficiency.

[0020] 3) The controller of this utility model is equipped with a switch, which allows users to control the state changes of the cushion. The elastic rope and magnetic block make it easy to use and store the controller. The force sensor is connected to the controller. When the force sensor detects that the user leaves the flexible cushion, the controller can control the transmission mechanism to automatically move the flexible cushion to the second state, which is convenient and quick.

[0021] 4) The force measuring block of this utility model is connected to a hook. When the user sits on the flexible cushion, the hook is locked in the groove to prevent the cushion from moving. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a flexible seat cushion folding device according to the present invention;

[0023] Figure 2 This is a side view of a flexible seat cushion folding device according to the present invention.

[0024] Figure 3 This is a schematic diagram of the hook and groove structure of this utility model;

[0025] The numbers in the diagram are as follows:

[0026] 1. Flexible seat cushion, 2. Drive wheel, 3. Synchronous belt, 4. Gearless driven wheel, 5. Geared driven wheel, 6. Force measuring block, 7. Hook, 8. Groove. Detailed Implementation

[0027] 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, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0028] like Figure 1 As shown, this utility model provides a flexible seat cushion retraction device, including a frame, a transmission mechanism, a flexible seat cushion 1, a force measuring block 6, and a controller. Through servo drive and intelligent sensing technology, it achieves precise roll-up and smooth unfolding of the flexible seat cushion 1, aiming to solve problems such as easy wear, high energy consumption, and loud operating noise in traditional seat cushion mechanical structures.

[0029] The frame is a cube with openings on the top, ground and one side, and reinforcing bars on the other sides.

[0030] like Figure 2 As shown, the transmission mechanism is located on one side of the frame and includes a synchronous belt 3, a driving pulley 2, two toothed driven pulleys 5, and one toothless driven pulley 4. The synchronous belt 3 is fitted onto the driving pulley 2 and the two toothed drive pulleys. The driving pulley 2 is located at the junction of the top surface and one side of the frame opening. The two toothed drive pulleys are located on the other side of the top surface and the other side of the opening, respectively. The toothless driven pulley 4 is installed outside the synchronous belt 3, near the driving pulley 2. Under the action of the driving pulley 2, the toothed driven pulleys 5, and the toothless driven pulley 4, the synchronous belt 3 forms an L-shape, with one end parallel to the top surface of the frame and the other end located on the side of the frame. The synchronous belt 3 is made of aramid fiber reinforced (breaking strength ≥800N). Multiple driven pulleys result in less noise and higher transmission efficiency compared to a single gear. The toothless driven pulley 4 can be made of silicone, which can absorb vibration, making the transmission mechanism move more smoothly and with less noise.

[0031] The flexible seat cushion 1 is mounted on the surface of the timing belt 3 and moves with the timing belt 3. Its size is the same as the opening size on the top surface of the frame. The flexible seat cushion 1 has a first state and a second state. When the flexible seat cushion 1 is in the first state, it is located on the top surface of the frame and is in contact with the force measuring block 6. When the flexible seat cushion 1 is in the second state, it is located on the side of the frame opening.

[0032] like Figure 3 As shown, the force measuring block 6 is installed below the flexible seat cushion 1 and in contact with the flexible seat cushion 1. The force measuring block 6 has a built-in force sensor to detect the pressure on the flexible seat cushion 1. A hook 7 is provided on one side of the force measuring block 6, and a groove 8 is provided on the surface of the flexible seat cushion 1 that contacts the force measuring block 6. When the flexible seat cushion 1 is in the first state and the pressure on the seat cushion is greater than 0, the hook 7 is engaged in the groove 8 to prevent the flexible seat cushion 1 from moving.

[0033] The controller is connected to the frame via an elastic cord and is also equipped with a magnetic block. An iron block is located on the frame, allowing the controller to be magnetically attached to it. The controller is connected to a force sensor and also includes a switch, which is connected to a transmission mechanism.

[0034] The usage process of this utility model is as follows:

[0035] When the force sensor detects that the pressure on the flexible cushion 1 is 0 or the user presses the switch on the controller, the drive wheel 2 is moved clockwise by external power. The movement of the drive wheel 2 drives the synchronous belt 3 and the flexible cushion 1 fixed on the synchronous belt 3 to move together, so that the flexible cushion 1 changes from the first state to the second state. When the user presses the switch at the top of the controller again, the drive wheel 2 moves and drives the synchronous belt 3 and the flexible cushion 1 fixed on the synchronous belt 3 to move together, so that the flexible cushion 1 changes from the second state to the first state. When the user sits on the flexible cushion 1, since the force measuring block 6 has a hook 7 on its surface, the groove 8 on the surface of the flexible cushion 1 is hooked by the hook 7 after it is pressed down, so that the structural force is distributed after sitting down and the cushion moves.

[0036] This invention is applicable to scenarios requiring automatic retraction of the seat cushion, such as smart wheelchairs or in conjunction with an underarm lifting mechanism to enable autonomous toileting for patients with leg disabilities. It features a simple structure, high reliability, and can significantly reduce the difficulty of equipment maintenance and durability.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions 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 flexible seat cushion retraction device, characterized in that, The system includes a frame, a transmission mechanism, a flexible seat cushion (1), and a force measuring block (6). The transmission mechanism is mounted on the frame. The transmission mechanism includes a transmission wheel and a transmission belt mounted on the transmission wheel. The flexible seat cushion (1) is mounted on one side of the transmission belt, and the force measuring block (6) is mounted on the side of the frame away from the ground. The frame is generally rectangular. The flexible seat cushion (1) has a first state and a second state. When the flexible seat cushion (1) is in the first state, it is located on the surface of the frame away from the ground, and the flexible seat cushion (1) is in contact with the force measuring block (6). When the flexible seat cushion (1) is in the second state, it is located on the side of the frame.

2. The flexible seat cushion folding device according to claim 1, characterized in that, The transmission wheel includes a driving wheel (2) and two toothed driven wheels (5), and the transmission belt is a synchronous belt (3); the synchronous belt (3) is sleeved on the driving wheel (2) and the two toothed driven wheels (5); the driving wheel (2) is located at the junction of the surface and side of the frame away from the ground, and the two toothed driven wheels (5) are respectively located on the surface and side of the frame away from the ground.

3. The flexible cushion folding device according to claim 2, characterized in that, The transmission wheel also includes a toothless driven wheel (4), which is installed on the outside of the synchronous belt (3); the synchronous belt (3) includes two L-shaped sections, one of which is parallel to the surface of the frame away from the ground, and the other of which is located on the side of the frame.

4. The flexible cushion folding device according to claim 3, characterized in that, The toothless driven wheel (4) is a silicone toothless driven wheel.

5. A flexible seat cushion retraction device according to claim 2, characterized in that, The frame has three openings, one of which overlaps with the ground, one of which holds the cushion in the first state, and the other of which holds the cushion in the second state.

6. The flexible seat cushion retraction device according to claim 1, characterized in that, The device also includes a controller, which has a switch connected to a transmission mechanism.

7. A flexible seat cushion folding device according to claim 6, characterized in that, The controller is connected to the frame via an elastic rope. The controller is equipped with a magnetic block, and the frame is equipped with an iron block. The controller is attached to the iron block of the frame via the magnetic block.

8. A flexible seat cushion retraction device according to claim 6, characterized in that, The force measuring block (6) has a built-in force sensor, which is connected to the controller.

9. A flexible seat cushion folding device according to claim 1, characterized in that, The force measuring block (6) is provided with a hook (7) on one side, and the flexible cushion (1) is provided with a groove (8) on the surface near the frame; when the flexible cushion (1) is in the first state and the pressure on the cushion is greater than 0, the hook (7) is engaged in the groove (8).

10. A flexible seat cushion collapsing device according to claim 1, characterized in that, The transmission mechanism is located on one side of the flexible seat cushion (1).

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