Business vehicle seat special for old people

Abstract

The utility model discloses a business purpose vehicle seat special for old people, and relates to the technical field of business purpose vehicle seats, the business purpose vehicle seat special for old people comprises a seat frame, a supporting frame, a backrest frame, a lifting mechanism, a linkage mechanism and a back support, the supporting frame is rotatably arranged at one end of the seat frame, and the backrest frame is slidably arranged on the supporting frame; a lifting mechanism is arranged on the supporting frame and connected with the backrest frame, the linkage mechanism is arranged on the inner side of the seat frame, and a plurality of back supports are arranged on the inner side of the backrest frame. According to the utility model, the backrest frame can be finely adjusted up and down through the lifting mechanism, so that the height of the backrest can be accurately adjusted according to the height and body part supporting requirements of old people. For short old people, the backrest can be heightened, so that the head is fully supported, and neck fatigue is relieved; and the old with uncomfortable waist can adjust the backrest to a proper height to provide powerful support for the waist, so that the waist pain is effectively relieved, and the comfort in the sitting process is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of commercial vehicle seat technology, and in particular to a commercial vehicle seat specifically designed for elderly passengers. Background Technology

[0002] As society ages, the travel needs of the elderly are increasing, and commercial vehicles, with their spaciousness and comfort, have become a common mode of transportation for them. However, existing commercial vehicle seats are designed primarily for the needs of general passengers, with insufficient attention paid to the specific needs of elderly passengers.

[0003] The backrest adjustment functions of existing commercial vehicle seats are relatively limited. They typically only allow for forward and backward movement and rotation. While this adjustment method can meet the needs of some people for comfortable seating, it presents many inconveniences for the elderly. Due to declining physical function, older adults may experience discomfort in their lower back, neck, or other areas. During a ride, relying solely on forward and backward movement and rotation of the backrest makes it difficult to find a completely comfortable support position. For example, some elderly passengers are shorter, and the existing backrest position cannot provide sufficient head support, leading to neck fatigue; or some elderly passengers require a specific height of lumbar support to alleviate pain, but the existing backrest adjustment methods cannot meet this need. Utility Model Content

[0004] The purpose of this utility model is to provide a special passenger seat for elderly people in commercial vehicles to solve the above-mentioned technical problems.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A passenger seat for elderly people in a commercial vehicle includes a seat frame, a support frame, a backrest frame, a lifting mechanism, a linkage mechanism, and back supports. The support frame is rotatably mounted on one end of the seat frame, the backrest frame is slidably mounted on the support frame, the lifting mechanism is mounted on the support frame and connected to the backrest frame, the linkage mechanism is located on the inner side of the seat frame, and a plurality of back supports are provided on the inner side of the backrest frame.

[0007] Preferably, the two support frames are disposed on both sides of one end of the seat frame.

[0008] As a further preferred embodiment, the system also includes a self-locking motor, a drive gear, a driven gear, and a rotating shaft. The support frame is rotatably connected to the seat frame via the rotating shaft. The driven gear is mounted on the rotating shaft. The self-locking motor is mounted on the side wall of the seat frame. The drive gear is mounted on the motor shaft of the self-locking motor, and the drive gear meshes with the driven gear.

[0009] As a further preferred embodiment, the backrest frame also includes a connecting frame, wherein two connecting frames are provided on both sides of the lower end of the backrest frame, and each connecting frame is respectively located within a supporting frame.

[0010] As a further preferred embodiment, it also includes a connecting shaft, through which the two connecting frames are connected. The supporting frame has a through hole through which the connecting shaft passes, and the inner diameter of the through hole is larger than the outer diameter of the connecting shaft.

[0011] As a further preferred embodiment, the lifting mechanism includes cylinders and connecting blocks. The two cylinders are fixedly mounted on the upper ends of the two support frames, and each cylinder has a connecting block at its output end. The connecting block is keyed to the connecting shaft.

[0012] Preferably, the lower end of the seat frame is provided with a slide rail assembly.

[0013] Preferably, the inner side of the backrest frame is provided with a plurality of movable shafts, the two ends of which are rotatably connected to the inner walls of the two sides of the backrest frame, and each of the movable shafts is provided with a back support.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] (1) In this utility model, the backrest frame can be adjusted up and down through the lifting mechanism, allowing the elderly to precisely adjust the backrest height according to their own height and the support needs of their body parts. For elderly people with short stature, the backrest can be raised to provide full support for the head and reduce neck fatigue; elderly people with back discomfort can adjust the backrest to a suitable height to provide strong support for the waist, effectively relieve back pain, and greatly improve the comfort during the ride.

[0016] (2) In this utility model, the several rotatable back supports provided on the inner side of the backrest frame can automatically adjust according to the curve of the elderly’s back and sitting posture, fit the back in all directions, distribute back pressure, and allow the elderly to stay comfortable during long-distance travel, effectively relieving back fatigue.

[0017] (3) In this utility model, the sliding rail assembly at the lower end of the seat frame and the multiple adjustment functions of the backrest frame can adjust the seat to a suitable position and angle when the elderly get on and off the vehicle, providing convenient access space, reducing the difficulty for the elderly to get on and off the vehicle, and reducing the risk of accidents such as falls. Attached Figure Description

[0018] Figure 1 This is a partial exploded view of the commercial vehicle passenger seat designed for the elderly in this utility model.

[0019] Figure 2This is a schematic diagram of the cooperation between the backrest and the backrest frame in this utility model.

[0020] In the diagram: 1. Seat frame; 2. Support frame; 3. Backrest frame; 4. Backrest; 5. Connecting frame; 6. Connecting shaft; 7. Through hole; 8. Cylinder; 9. Connecting block; 10. Slide rail assembly; 11. Movable shaft; 12. Linear motor; 13. Connecting rod; 14. Drive mechanism; 15. Linkage rod. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Figure 1 This is a partial exploded view of the commercial vehicle passenger seat designed for the elderly in this utility model. Figure 2 This is a schematic diagram of the cooperation between the backrest and the backrest frame in this utility model. Please refer to [the diagram]. Figures 1 to 2The diagram illustrates a preferred embodiment of a passenger seat specifically designed for elderly passengers in a commercial vehicle. The seat includes a seat frame 1, a support frame 2, a backrest frame 3, a lifting mechanism, a linkage mechanism, and back supports 4. The support frame 2 is rotatably mounted on one end of the seat frame 1. The backrest frame 3 is slidably mounted on the support frame 2. A lifting mechanism is mounted on the support frame 2 and connected to the backrest frame 3. The linkage mechanism is located on the inner side of the seat frame 1, and several back supports 4 are located on the inner side of the backrest frame 3. In this embodiment, the seat frame 1 serves as the basic support structure for the entire seat. The rotatable support frame 2 at one end allows the backrest frame 3 to maintain a certain degree of flexibility while providing other adjustment functions, facilitating adjustment to a suitable angle for the elderly passenger. Two support frames 2 are respectively positioned on either side of one end of the seat frame 1, providing stable lateral support for the backrest frame 3. This ensures the stability of the backrest frame 3 during adjustment, preventing swaying or shifting and guaranteeing the safety of the elderly passenger. The backrest frame 3 is slidably mounted on the support frame 2, and with the addition of a lifting mechanism, the backrest frame 3 can be moved up and down to adjust its height, making it suitable for shorter elderly people.

[0025] In this embodiment, the seat frame 1 serves as the basic load-bearing structure of the entire seat. It is typically made of high-strength metal materials, such as alloy steel, to ensure sufficient strength and stability to withstand the weight of elderly people sitting on it. The seat frame 1 is bolted onto the slide rail assembly 10. A linkage mechanism is used to restrict the forward and backward movement of the seat frame 1 when not in use, preventing swaying. When in use, the linkage mechanism drives the seat frame 1 to move forward and backward.

[0026] Furthermore, as a preferred embodiment, two support frames 2 are disposed on both sides of one end of the seat frame 1. The support frames 2 are used to mount the backrest frame 3 and are rotatably connected to the seat frame 1.

[0027] Furthermore, as a preferred embodiment, it also includes a self-locking motor, a driving gear, a driven gear, and a rotating shaft. The support frame 2 is rotatably connected to the seat frame 1 via the rotating shaft, and the driven gear is mounted on the rotating shaft. The self-locking motor is mounted on the side wall of the seat frame 1, and the driving gear is mounted on the motor shaft of the self-locking motor. The driving gear meshes with the driven gear. The structure and engagement of the self-locking motor, driving gear, driven gear, and rotating shaft in this embodiment are all existing technologies. When the self-locking motor is activated, the driving gear drives the driven gear to rotate, thereby causing the support frame 2, together with the backrest frame 3, to rotate around the rotating shaft, realizing the rotation adjustment of the backrest. The self-locking motor allows the backrest to remain fixed after being adjusted to a suitable angle, preventing changes in the backrest angle due to vehicle bumps or other reasons, further improving the stability and comfort of the ride.

[0028] In this embodiment, the linkage mechanism includes a linear motor 12 and a connecting rod 13. The connecting rod 13 is located inside the seat frame 1 and connected to both ends of the seat frame 1. The linear motor 12 is located inside the seat frame 1 but is not connected to the seat frame 1; instead, it is connected to a motor mounting position on the vehicle body. The output end of the linear motor 12 is connected to the connecting rod 13 via a connecting plate. The linear motor 12 is used to drive the seat frame 1 to move back and forth. The connecting plate is fixedly connected to the connecting rod 13.

[0029] Furthermore, as a preferred embodiment, it also includes connecting frames 5. Two connecting frames 5 are provided on both sides of the lower end of the backrest frame 3, and each connecting frame 5 is respectively located within a support frame 2. The connecting frames 5 are connected to the backrest frame 3, and the two connecting frames 5 are connected by a connecting shaft 6. A through hole 7 is provided on the support frame 2, through which the connecting shaft 6 passes. The inner diameter of the through hole 7 is larger than the outer diameter of the connecting shaft 6, which ensures that the connecting shaft 6 can move up and down within the through hole 7, and also provides a certain limiting effect on the connecting shaft 6. The connecting frames 5 and the backrest frame 3 are connected by bolts. When the cylinder 8 in the lifting mechanism is working, it can drive the connecting shaft 6 to move up and down within the through hole 7, thereby adjusting the height of the connecting frames 5 and the backrest frame 3. In this embodiment, a guide rail can be provided between the support frame 2 and the connecting frames 5. The guide rail is connected to the support frame 2 by bolts, and a slider is provided in the guide rail. The slider is connected to the connecting frame 5 by bolts, which facilitates greater stability of the connecting frames 5.

[0030] Furthermore, as a preferred embodiment, the lifting mechanism includes cylinders 8 and connecting blocks 9. Two cylinders 8 are fixedly mounted on the upper ends of the two support frames 2. Each cylinder 8 has a connecting block 9 at its output end. The connecting blocks 9 are keyed to the connecting shaft 6. The connecting blocks 9 have mounting holes with keyways on their inner walls, and the connecting shaft 6 has a key on its outer wall that engages with the keyways. When the cylinders 8 operate, they drive the connecting shaft 6 up and down via the connecting blocks 9, thereby adjusting the backrest frame 3 vertically. This design allows the backrest frame 3 to be flexibly adjusted to a suitable height according to the elderly person's height, posture, and physical needs, providing precise support for the head, neck, and waist, effectively relieving fatigue and improving seating comfort. The cylinders 8 are fixedly connected to the support frames 2. The fixing of the cylinders 8 prevents the backrest frame 3 from wobbling relative to the support frames 2, allowing the backrest frame 3 to rotate with the support frames 2. In this embodiment, the cylinder 8 and the connecting block 9 are welded together or fixed by bolts to prevent the connecting block 9 from rotating relative to the cylinder 8.

[0031] In this embodiment, the cylinder 8, the self-locking motor, and the linear motor 12 are all connected to the vehicle's own control system. In actual application, the seat frame 1 needs to be covered with a seat cushion, and the outer side of the backrest frame 3 needs to be covered with a backrest cushion. Several control buttons can be installed on the side of the seat or the armrest, which are used to control the cylinder 8, the linear motor 12, and the self-locking motor, respectively.

[0032] Furthermore, as a preferred embodiment, a slide rail assembly 10 is provided at the lower end of the seat frame 1. The slide rail assembly 10 includes a slide rail and a slider disposed on the slide rail. The lower end of the seat frame 1 is connected to the slider, which facilitates the sliding of the seat frame 1 on the slide rail, increases the versatility of seat adjustment, and meets the needs of different usage scenarios. For example, it makes it easier for the elderly to adjust the seat position when getting on and off the vehicle, providing more convenient access space. The slider is connected to the seat frame 1 by bolts, and the slide rail is mounted on the vehicle body by bolts.

[0033] Furthermore, as a preferred embodiment, a plurality of movable shafts 11 are provided on the inner side of the backrest frame 3. The two ends of the movable shafts 11 are rotatably connected to the inner walls of both sides of the backrest frame 3, and a back support 4 is provided on each movable shaft 11. In this embodiment, through the movable setting of the back support 4, it can adaptively adjust according to the back curve and sitting posture of the elderly, better fit the back of the elderly, provide all-round support for the back, and further improve the comfort of sitting.

[0034] See Figure 2 As shown, it also includes a drive mechanism 14 and a connecting rod 15. The drive mechanism 14 can be a motor, which is bolted to the inner wall of one side of the backrest frame 3. The output end of the motor is connected to a movable shaft 11 via gear transmission. For example, gears are provided on both the movable shaft 11 and the output end of the motor, and the two gears mesh. In this way, the motor can drive the movable shaft 11 to rotate, thereby driving the back support 4 on it to rotate.

[0035] The two back supports 4 on two adjacent movable shafts 11 are connected by a connecting rod 15, such as Figure 2 The diagram shows the adjusted state of the back support 4. A connecting hole is provided on the back support 4. Both ends of the connecting rod 15 are bent at 90° to form bent ends, which are located within the connecting hole. The outer diameter of the bent ends is slightly smaller than the inner diameter of the connecting hole, but the length of the bent ends is greater than the axial length of the connecting hole. Thus, when the motor drives the movable shaft 11 to rotate, the back support 4 on that movable shaft 11 can drive the back support 4 on an adjacent movable shaft 11 to rotate via the connecting rod 15, without affecting the normal rotation of the back support 4 due to the arrangement of the connecting rod 15. In this embodiment, the rotation angle range of the back support 4 is -5° to 5°.

[0036] In this embodiment, two sets of connecting rods 15 are provided between two adjacent back supports 4. Each set of connecting rods 15 includes two rods, and the two sets of connecting rods 15 are distributed on both sides of the back support 4, that is, on the inner sides of both sides of the backrest frame 3. For details, please refer to [link to relevant documentation]. Figure 2 As shown. The motor can be connected to the vehicle's own control system. The motor's forward or reverse rotation can be controlled via control buttons located on the side of the seat or the armrest, thus controlling the rotation direction of the backrest 4.

[0037] In use, to control the seat's forward and backward position, the linear motor 12 can be controlled via the corresponding control button to move the seat frame 1 along the slide rail assembly 10, thus adjusting the position. To adjust the backrest's tilt angle, the self-locking motor can be controlled via the corresponding control button to rotate the backrest frame 3 to the desired angle. To adjust the backrest height, the cylinder 8 can be controlled via the corresponding control button to adjust the height of the backrest frame 3. To adjust the backrest angle, the motor can be controlled via the corresponding control button, driving the movable shaft 11 to rotate the backrest 4 to the desired angle.

[0038] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A passenger seat specifically designed for elderly passengers in commercial vehicles, characterized in that, The seat frame includes a seat frame, a support frame, a backrest frame, a lifting mechanism, a linkage mechanism, and back supports. The support frame is rotatably mounted on one end of the seat frame. The backrest frame is slidably mounted on the support frame. The lifting mechanism is mounted on the support frame and connected to the backrest frame. The linkage mechanism is located on the inner side of the seat frame. A plurality of back supports are provided on the inner side of the backrest frame.

2. The passenger seat for elderly people in a commercial vehicle as described in claim 1, characterized in that, The two support frames are disposed on both sides of one end of the seat frame.

3. The passenger seat for elderly people in a commercial vehicle as described in claim 2, characterized in that, It also includes a self-locking motor, a drive gear, a driven gear, and a rotating shaft. The support frame is rotatably connected to the seat frame via the rotating shaft. The driven gear is mounted on the rotating shaft. The self-locking motor is mounted on the side wall of the seat frame. The drive gear is mounted on the motor shaft of the self-locking motor. The drive gear meshes with the driven gear.

4. The passenger seat for elderly people in a commercial vehicle as described in claim 2, characterized in that, It also includes a connecting frame, with two connecting frames provided on both sides of the lower end of the backrest frame, each of the connecting frames being disposed within a supporting frame.

5. The passenger seat for elderly people in a commercial vehicle as described in claim 4, characterized in that, It also includes a connecting shaft, through which the two connecting frames are connected. The supporting frame has a through hole, through which the connecting shaft passes. The inner diameter of the through hole is larger than the outer diameter of the connecting shaft.

6. The passenger seat for elderly people in a commercial vehicle as described in claim 5, characterized in that, The lifting mechanism includes cylinders and connecting blocks. The two cylinders are fixedly mounted on the upper ends of the two support frames. Each cylinder has a connecting block at its output end, and the connecting block is keyed to the connecting shaft.

7. The passenger seat for elderly people in a commercial vehicle as described in claim 1, characterized in that, The lower end of the seat frame is equipped with a slide rail assembly.

8. The passenger seat for elderly people in a commercial vehicle as described in claim 1, characterized in that, The inner side of the backrest frame is provided with several movable shafts, and the two ends of the movable shafts are rotatably connected to the inner walls of the two sides of the backrest frame. Each movable shaft is provided with a back support.

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