Folding type seat framework and vehicle
By designing an adjustable folding seat skeleton, multi-angle folding is achieved using the adjustment structure and manual folding mechanism, the problem of single function of existing seats is solved, and the function of seats to form beds and oversized luggage storage space is realized, while reducing costs and energy consumption.
Patent Information
- Application Number
- CN202422323579.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-23
AI Technical Summary
The existing flip-floping seat skeleton has a single folding angle, resulting in a single seat function, which cannot meet the needs of trunk bed function and luggage storage space.
A folding seat skeleton is designed, adopting an adjustment structure and a manual folding mechanism. The folding angle of the backrest structure and the seat cushion structure can be adjusted to 0 to 180°, and the multi-angle folding and locking of the seat cushion structure is achieved through the manual folding mechanism.
The multifunctional use of seats is realized, and the second and third row seats can be folded into beds when needed, or the seats are folded to increase the trunk space, meeting the needs of luggage storage space and trunk into bed functions, while reducing production costs and energy consumption.
Smart Images
Figure CN222973250U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle parts, and particularly relates to a folding seat frame and a vehicle. Background Art
[0002] At present, in order to increase the storage space of the trunk of a seven-seater multi-purpose vehicle, a seat frame that can be flipped and folded is usually adopted. However, there are mainly two existing seat frames that can be flipped and folded. One is a seat frame that can be folded forward by 90°, and the other is a seat frame that can be folded forward by 180°. However, the folding angles of these two seat frames are relatively single, resulting in relatively single use functions of the seats. In addition, when a seat frame that can be folded forward by 90° is adopted, the trunk space increased after the seat frame is folded is limited, and it cannot meet the function of the trunk becoming a bed, and the storage space of the trunk is still limited. Summary of the Utility Model
[0003] The problem solved by the utility model is: how to improve the use function of the seat frame of a seven-seater multi-purpose vehicle.
[0004] To solve the above problems, the utility model provides a folding seat frame and a vehicle.
[0005] In a first aspect, the utility model provides a folding seat frame, which includes a backrest structure, a seat cushion structure, an adjusting structure and a manual folding mechanism. One end of the seat cushion structure is rotatably connected to the backrest structure through the adjusting structure, and the other end is connected to the vehicle body floor through the manual folding mechanism. The adjusting structure is used to adjust the folding angle of the backrest structure and lock the backrest structure at the current folding angle. The manual folding mechanism is used to unlock or lock the seat cushion structure by rotation. When unlocked, the seat cushion structure can be folded around the rotation axis of the manual folding mechanism, and when locked, it is limited to the current folding angle.
[0006] Optionally, the folding angles of the backrest structure and the seat cushion structure are between 0 and 180°.
[0007] Optionally, the manual folding mechanism includes an angle adjuster, a handle, a first mounting bracket and a second mounting bracket. The first mounting bracket and the second mounting bracket are rotatably connected through the angle adjuster. The first mounting bracket is connected to the seat cushion structure, and the second mounting bracket is used to be connected to the vehicle body floor. The handle is coaxially connected to the angle adjuster and is located on the side of the angle adjuster facing the outside of the vehicle. The handle is used to drive the angle adjuster to rotate to unlock or lock the angle adjuster, and the rotation axis of the angle adjuster is parallel to the left-right direction of the vehicle.
[0008] Optionally, the manual folding mechanism further includes a connecting shaft coaxially arranged with the angle adjuster. The seat cushion structure is provided with the angle adjuster, the first mounting bracket, and the second mounting bracket at both ends in the left-right direction, and the first mounting bracket and the second mounting bracket at the same end are rotatably connected through the corresponding angle adjuster. One end of the connecting shaft is connected to one angle adjuster, and the other end passes through the other angle adjuster and is connected to the handle.
[0009] Optionally, the seat cushion structure is provided with the handle at both ends in the left-right direction, and both ends of the connecting shaft respectively pass through the corresponding angle adjusters and are connected to the corresponding handles.
[0010] Optionally, the second mounting bracket is provided with a first limiting structure, and the handle is provided with a second limiting structure. The handle has an unlocking position and a locking position; when the handle is in the locking position, the second limiting structure abuts against one end of the first limiting structure, and the angle adjuster is in a locked state, and the seat cushion structure hovers at the current folding angle; when the handle rotates to the unlocking position, the second limiting structure abuts against the other end of the first limiting structure, and the angle adjuster is in an unlocked state.
[0011] Optionally, one of the first limiting structure and the second limiting structure is a limiting groove extending along the circumferential direction of the angle adjuster, and the other is a limiting protrusion. The limiting protrusion is inserted into the limiting groove, and the limiting protrusion is used to move relative to the limiting groove along the circumferential direction of the angle adjuster and is used to abut against two groove walls at both circumferential ends of the limiting groove.
[0012] Optionally, the first mounting bracket includes a first connecting plate and a second connecting plate that are respectively of an integral structure. The first connecting plate and the second connecting plate are detachably connected. The seat cushion structure is connected to the first connecting plate, and the second connecting plate and the second mounting bracket are rotatably connected through the angle adjuster;
[0013] And / or, the second mounting bracket includes a third connecting plate and a fourth connecting plate that are respectively of an integral structure. The third connecting plate and the fourth connecting plate are detachably connected. The first mounting bracket and the third connecting plate are rotatably connected through the angle adjuster, and the fourth connecting plate is used to be connected to the vehicle body floor.
[0014] Optionally, the folding seat frame further includes a floor lock mechanism. The seat cushion structure is used to be fixed to the vehicle body floor through the floor lock mechanism, and the manual folding mechanism is used to adjust the folding angle of the seat cushion structure when the floor lock mechanism is unlocked.
[0015] In a second aspect, the present utility model provides a vehicle, which includes the foldable seat frame as described above.
[0016] The beneficial effects of the foldable seat frame of the present utility model are as follows: By setting an adjustment structure and a manual folding mechanism, and rotatably connecting, for example, the rear end of the seat cushion structure to the backrest structure through the adjustment structure, and connecting, for example, the front end of the seat cushion structure to the vehicle body, for example, through the manual folding mechanism. In this way, when the foldable seat frame is applied to a seven-seat multi-purpose vehicle, the backrest structures of the second-row seats and the third-row seats can be flipped backward to a flat state under the action of the adjustment structure, so that the second-row seats and the third-row seats after being flattened can be used as beds, thus realizing the function of the seat becoming a bed; In addition, after the backrest structure of the third-row seat is flipped forward to a folded state, the manual folding mechanism can be used to manually unlock the seat cushion structure, and after the seat cushion structure is pulled to flip forward by 90°, the manual folding mechanism can be used to lock the seat cushion structure to increase the space of the trunk, so that the trunk can be used as a children's bed. On this basis, the manual folding mechanism of the second-row seat can be used to flip the seat cushion structure of the second-row seat forward by 90° and lock it, and further, the manual folding mechanism of the third-row seat can be used to flip the seat cushion structure of the third-row seat forward by 180° and lock it to further increase the space of the trunk, so that the trunk can store extra-large luggage or be used as an adult bed, thus realizing the function of the extra-large trunk storage space and the function of the trunk becoming a bed. In this way, the seats of the seven-seat multi-purpose vehicle can realize the function of the seat becoming a bed, or realize the function of the trunk becoming a bed and the function of the extra-large trunk storage space, thereby improving the usage function of the seats; In addition, using the manual folding mechanism to realize the manual folding of the seat cushion can reduce the setting of, for example, motors, which can not only reduce the production cost and energy consumption, but also be environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic structural diagram of the foldable seat frame in an embodiment of the present utility model;
[0018] Figure 2 is an exploded structural diagram of the manual folding mechanism in an embodiment of the present utility model;
[0019] Figure 3 is a schematic structural diagram of the manual folding mechanism in an embodiment of the present utility model;
[0020] Figure 4 is a schematic structural diagram of the third connecting plate in an embodiment of the present utility model;
[0021] Figure 5 is a schematic structural diagram of the handle in an embodiment of the present utility model;
[0022] Figure 6This is a schematic structural diagram of the folding seat frame in the present utility model embodiment when the backrest structure is laid flat;
[0023] Figure 7 This is a schematic structural diagram of the folding seat frame in the present utility model embodiment when in the sitting state;
[0024] Figure 8 This is a schematic structural diagram of the folding seat frame in the present utility model embodiment when the backrest structure is in the laid - down state;
[0025] Figure 9 This is a schematic structural diagram of the folding seat frame in the present utility model embodiment when the seat cushion structure is folded forward by 90°;
[0026] Figure 10 This is a schematic structural diagram of the folding seat frame in the present utility model embodiment when the seat cushion structure is folded forward by 180°.
[0027] Explanation of reference numerals:
[0028] 1. Backrest structure; 2. Seat cushion structure; 3. Adjustment structure; 4. Manual folding mechanism; 41. Angle adjuster; 42. Handle; 421. Second limiting structure; 4211. First limiting surface; 4212. Second limiting surface; 43. First mounting bracket; 431. First connecting plate; 432. Second connecting plate; 44. Second mounting bracket; 441. Third connecting plate; 442. Fourth connecting plate; 443. First limiting structure; 45. Connecting shaft; 5. Floor lock mechanism. Detailed implementation manners
[0029] To make the above - mentioned objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model is given with reference to the accompanying drawings. Although some embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present utility model. It should be understood that the drawings and embodiments of the present utility model are only for exemplary purposes and are not used to limit the protection scope of the present utility model.
[0030] The Z-axis in the attached drawings represents the vertical direction, that is, the up-and-down position. The positive direction of the Z-axis represents the upper side, and the negative direction of the Z-axis represents the lower side. The X-axis in the attached drawings represents the horizontal direction and is specified as the front-back position. The positive direction of the X-axis represents the front side, and the negative direction of the X-axis represents the rear side. The Y-axis in the attached drawings represents the left-right position. The positive direction of the Y-axis represents the left side, and the negative direction of the Y-axis represents the right side. At the same time, it should be noted that the meanings represented by the foregoing Z-axis, Y-axis, and X-axis are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.
[0031] As used herein, the term "comprising" and its variations are open-ended, that is, "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiment". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0032] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly stated in the context, it should be understood as "one or more".
[0033] In the related art, in order to increase the storage space of the trunk of a seven-seat multi-purpose vehicle, a seat frame that can be flipped and folded is usually adopted. However, there are mainly two existing seat frames that can be flipped and folded. One is a seat frame that can be flipped forward by 90°, and the other is a seat frame that can be flipped forward by 180°. However, the folding angles of these two seat frames are relatively single, resulting in relatively single use functions of the seats. In addition, when a seat frame that can be flipped forward by 90° is adopted, the trunk space increased after the seat frame is flipped is limited, and it cannot meet the function of the trunk becoming a bed, and the storage space of the trunk is still limited.
[0034] In view of the problems existing in the above-mentioned related art, the present invention provides a folding seat frame and a vehicle, which are mainly applied to seven-seat multi-purpose vehicles, but can also be applied to other vehicles. For the convenience of description, the following description will take the folding seat frame applied to a seven-seat multi-purpose vehicle as an example.
[0035] Combined with Figure 1 、 Figure 6 and Figure 10As shown in the figure, a folding seat frame provided by an embodiment of the present utility model includes a backrest structure 1, a seat cushion structure 2, an adjustment structure 3, and a manual folding mechanism 4. One end of the seat cushion structure 2 is rotatably connected to the backrest structure 1 through the adjustment structure 3, and the other end is connected to the vehicle floor through the manual folding mechanism 4. The adjustment structure 3 is used to adjust the folding angle of the backrest structure 1 and lock the backrest structure 1 at the current folding angle. The manual folding mechanism 4 is used to unlock or lock the seat cushion structure 2 by rotation. The seat cushion structure 2 can be folded around the rotation axis of the manual folding mechanism 4 when unlocked and is limited at the current folding angle when locked.
[0036] It should be noted that the folding angle of the backrest structure 1 generally refers to the flipping angle of the backrest structure 1 relative to the seat cushion structure 2, which is also the included angle between the backrest structure 1 and the seat cushion structure 2. The folding angle of the seat cushion structure 2 generally refers to the flipping angle of the seat cushion structure 2 relative to a support surface such as the vehicle floor, which is also the included angle between the seat cushion structure 2 and the support surface. In a seven-seat multi-purpose vehicle, when there are passengers sitting on the seats in the second row and the third row, the seat cushion structure 2 of the seat is usually set horizontally, that is, the folding angle of the seat cushion structure 2 is 0, and the backrest structure 1 of the seat is usually set obliquely, and the folding angle of the backrest structure 1 is an obtuse angle, as Figure 7 shown. At this time, it can also be said that the backrest structure 1 is in the sitting state. When the backrest structure 1 rotates around an axis parallel to the left-right direction of the vehicle (i.e., Figure 1 the Y-axis direction in the figure) towards the front of the vehicle (i.e., Figure 1 the positive X-axis direction in the figure) until it is parallel or substantially parallel to the seat cushion structure 2, the folding angle of the backrest structure 1 is 0. At this time, the backrest structure 1 is in the laid-down state, which can also be called the folded state, as Figure 8 shown; when the backrest structure 1 rotates around the rotation axis towards the rear of the vehicle (i.e., Figure 1 the negative X-axis direction in the figure) until it is laid flat under the action of the adjustment structure 3, the folding angle of the backrest structure 1 is 180°. At this time, the backrest structure 1 is in the laid-flat state, as Figure 6 shown. When the backrest structure 1 is in the laid-down state, the seat cushion structure 2 can rotate around an axis parallel to the left-right direction of the vehicle towards the front of the vehicle under the action of the manual folding mechanism 4 and hover at the current folding angle, as Figure 8 , Figure 9 and Figure 10 shown.
[0037] Specifically, in a folding seat frame, the lower end of the backrest structure 1 is usually rotatably connected to the rear end of the seat cushion structure 2 through an adjustment structure 3, and the front end of the seat cushion structure 2 is connected to the vehicle floor through a manual folding mechanism 4. The adjustment structure 3 can be an electric adjustment mechanism or a manual adjustment mechanism. When the adjustment structure 3 adopts an electric adjustment mechanism, it mainly uses, for example, an angle adjustment device and a motor to automatically adjust the folding angle of the backrest structure 1. When the adjustment structure 3 adopts a manual adjustment mechanism, its structure is similar to that of the manual folding mechanism 4, and it mainly uses, for example, an angle adjustment device and an adjustment handle to manually adjust the folding angle of the backrest structure 1. However, whether it is a manual adjustment method or an electric adjustment method, the adjustment structure 3 can make the backrest structure 1 hover at any angle position within an adjustable angle range, such as between 0 and 180°. Moreover, the manual folding mechanism 4 can make the seat cushion structure 2 hover at any angle position within an adjustable angle range, such as between 0 and 180°. In addition, the adjustment structure 3 is usually arranged on both sides of the backrest structure 1 along the left-right direction of the vehicle. The manual folding mechanism 4 is usually arranged at the front end of the seat cushion structure 2 and is located below the front end of the seat cushion structure 2. It can be arranged at the middle position of the front end of the seat cushion structure 2, or can be arranged on the left side and / or the right side of the front end of the seat cushion structure 2. In practical applications, it can be selected and designed according to needs, and no specific limitation is made here.
[0038] In this embodiment, the folding seat frame can be provided with an adjusting structure 3 and a manual folding mechanism 4. For example, the rear end of the seat cushion structure 2 is rotatably connected to the backrest structure 1 through the adjusting structure 3, and the front end of the seat cushion structure 2 is connected to, for example, the vehicle body floor through the manual folding mechanism 4. In this way, when the folding seat frame is applied to a seven-seat multi-purpose vehicle, the backrest structures 1 of the second-row and third-row seats can be flipped backward to the flat state under the action of the adjusting structure 3, so that the second-row and third-row seats in the flat state can be used as a bed, thus realizing the function of the seat becoming a bed. Additionally, after the backrest structure 1 of the third-row seat is flipped forward to the folded state, the manual folding mechanism 4 can be used to manually unlock the seat cushion structure 2, and after the seat cushion structure 2 is flipped forward by 90°, the manual folding mechanism 4 can be used to lock the seat cushion structure 2 to increase the trunk space, so that the trunk can be used as a children's bed. On this basis, the manual folding mechanism 4 of the second-row seat can be used to flip the seat cushion structure 2 of the second-row seat forward by 90° and lock it, and then the manual folding mechanism 4 of the third-row seat can be further used to flip the seat cushion structure 2 of the third-row seat forward by 180° and lock it to further increase the trunk space, so that the trunk can store extra-large luggage or be used as an adult bed, thus realizing the function of the extra-large trunk storage space and the function of the trunk becoming a bed. In this way, the seats of the seven-seat multi-purpose vehicle can realize the function of the seat becoming a bed, or realize the functions of the trunk becoming a bed and the extra-large trunk storage space, thereby improving the use function of the seat. Additionally, the manual folding of the seat cushion is realized by using the manual folding mechanism 4, which can reduce the setting of, for example, motors, not only reducing the production cost and energy consumption, but also being environmentally friendly and green.
[0039] Optionally, in combination with Figures 6 to 10 as shown, the folding angles of the backrest structure 1 and the seat cushion structure 2 are between 0 and 180°. With such a setting, not only can the backrest structure 1 hover at any angular position between 0 and 180° relative to the seat cushion structure 2 in the horizontal state, but also the seat cushion structure 2 can hover at any angular position between 0 and 180° relative to the vehicle body floor, thereby further increasing the angular adjustment range of the backrest structure 1 and the seat cushion structure 2, enabling the seats of the seven-seat multi-purpose vehicle to simultaneously have the functions of the seat becoming a bed, the trunk becoming a bed, and the extra-large trunk storage space, further expanding the use function of the seat.
[0040] Optionally, in combination with Figure 2 and Figure 3As shown, the manual folding mechanism 4 includes an angle adjuster 41, a handle 42, a first mounting bracket 43, and a second mounting bracket 44. The first mounting bracket 43 and the second mounting bracket 44 are rotatably connected by the angle adjuster 41. The first mounting bracket 43 is connected to the seat cushion structure 2, and the second mounting bracket 44 is used to connect to the vehicle body floor. The handle 42 is coaxially connected to the angle adjuster 41 and is located on the side of the angle adjuster 41 facing outside the vehicle. The handle 42 is used to drive the angle adjuster 41 to rotate to unlock or lock the angle adjuster 41, and the rotation axis of the angle adjuster 41 is parallel to the left-right direction of the vehicle.
[0041] Specifically, between the first mounting bracket 43 and the seat cushion structure 2 and between the second mounting bracket 44 and the vehicle body floor, bolt connection is usually adopted, which is not only firmly connected but also convenient for disassembly and assembly. The angle adjuster 41 is usually a non-continuous angle adjuster, which mainly includes an inner tooth plate, an outer tooth plate, and a cam. The first mounting bracket 43 is usually connected to one of the inner tooth plate and the outer tooth plate, and the second mounting bracket 44 is usually connected to the other of the inner tooth plate and the outer tooth plate. The handle 42 is connected to the cam. The inner tooth plate and the outer tooth plate of the angle adjuster 41 are used to engage or separate under the action of the cam. When the handle 42 is rotated to separate the inner tooth plate and the outer tooth plate of the angle adjuster 41, the angle adjuster 41 is in the unlocked state, so that the seat cushion structure 2 is unlocked. At this time, the seat cushion structure 2 can be manually pulled to fold around the rotation axis of the angle adjuster 41. When the seat cushion structure 2 is flipped to the required angle, the handle 42 is rotated in the reverse direction to make the inner tooth plate and the outer tooth plate of the angle adjuster 41 engage. At this time, the angle adjuster 41 is in the locked state, so that the seat cushion structure 2 hovers at the current folding angle due to locking. In addition, the manual folding mechanism 4 in this embodiment usually includes one angle adjuster 41, one handle 42, one first mounting bracket 43, and one second mounting bracket 44. At this time, a manual folding mechanism 4 can be set at the middle position of the front end of the seat cushion structure 2, or one manual folding mechanism 4 can be set on each of the left and right sides of the front end of the seat cushion structure 2, and no specific limitation is made here. Among them, when one manual folding mechanism 4 is set on each of the left and right sides of the front end of the seat cushion structure 2, if the seat cushion structure 2 needs to be folded, the angle adjusters 41 of the two manual folding mechanisms 4 need to be unlocked simultaneously.
[0042] In this alternative embodiment, by providing the first mounting bracket 43 and the second mounting bracket 44, the first mounting bracket 43 and the second mounting bracket 44 are respectively connected to the seat cushion structure 2 and the vehicle body floor, and the first mounting bracket 43 and the second mounting bracket 44 are rotatably connected through the angle adjuster 41, so that the seat cushion structure 2 can be folded about the rotation axis of the angle adjuster 41. At the same time, the rotation handle 42 is used to unlock or lock the angle adjuster 41 to achieve the unlocking or locking of the seat cushion structure 2, thereby facilitating the adjustment of the folding angle of the seat cushion structure 2 by manually flipping the seat cushion structure 2. This is not only convenient to operate, but also the core adjustment component, the angle adjuster 41, can be directly obtained on the market. Furthermore, the design difficulty of the manual folding mechanism 4 can be reduced and the production efficiency can be improved. In addition, the provision of the second mounting bracket 44 can not only provide support for the seat cushion structure 2, but also increase the distance between the seat cushion structure 2 and the vehicle body floor, providing a larger layout space for the manual folding mechanism 4.
[0043] Optionally, as shown in Figure 1 and Figure 3 the manual folding mechanism 4 further includes a connecting shaft 45 coaxially arranged with the angle adjuster 41. Angle adjusters 41, first mounting brackets 43 and second mounting brackets 44 are provided at both ends of the seat cushion structure 2 in the left-right direction, and the first mounting bracket 43 and the second mounting bracket 44 at the same end are rotatably connected through the corresponding angle adjuster 41. One end of the connecting shaft 45 is connected to one angle adjuster 41, and the other end passes through another angle adjuster 41 and is connected to the handle 42.
[0044] In this alternative embodiment, the manual folding mechanism 4 includes two angle adjusters 41, one handle 42, two first mounting brackets 43, two second mounting brackets 44 and one connecting shaft 45. One angle adjuster 41, one first mounting bracket 43 and one second mounting bracket 44 are provided on each of the left and right sides at the front end of the seat cushion structure 2. One end of the connecting shaft 45 is connected to the cam of one angle adjuster 41, and the other end passes through the cam of another angle adjuster 41 and is connected to the handle 42, so that the handle 42 is located outside the seat cushion structure 2, that is, on the side of the seat cushion structure 2 facing away from the vehicle. In addition, a fixed connection can be formed between the handle 42 and the connecting shaft 45 and between the connecting shaft 45 and the cam of the angle adjuster 41 by means of snap connection or spline connection, etc., which is not specifically limited here.
[0045] In this way, by simultaneously arranging the angle adjusters 41, the first mounting brackets 43 and the second mounting brackets 44 on, for example, the left and right sides of the seat cushion structure 2, the load-bearing performance of the seat cushion structure 2 is improved. Moreover, by arranging the connecting shaft 45, and connecting one end of the connecting shaft 45 to one angle adjuster 41, and passing the other end of the connecting shaft 45 through another angle adjuster 41 to connect to the handle 42, the power output by the handle 42 is respectively transmitted to the two angle adjusters 41 by using the connecting shaft 45, so as to realize driving the angle adjusters 41 on the left and right sides of the seat cushion structure 2 to rotate synchronously by using one handle 42, thereby reducing the number of handles 42, simplifying the structure of the manual folding mechanism 4, and reducing the production cost.
[0046] Further, it is generally preferred that the handle 42 and the angle adjuster 41 are respectively connected to the connecting shaft 45 by splines.
[0047] In this embodiment, an external spline structure is generally arranged on the connecting shaft 45, and an internal spline structure is arranged on the cam of the angle adjuster 41 and the handle 42, so as to realize the spline connection between the handle 42 and the angle adjuster 41 and between the connecting shaft 45 and the handle 42 by using the internal and external spline structures. It not only has a simple structure and is convenient for disassembly and assembly, but also has a firm connection, and can better transmit the rotational motion output by the handle 42 to the two angle adjusters 41.
[0048] Further, the connecting shaft 45 is an external spline shaft. That is to say, the external spline structure on the connecting shaft 45 extends from one end of the connecting shaft 45 to the other end, so that the connecting shaft 45 is integrally an external spline shaft. In this way, the connecting shaft 45 can be cut according to the length dimensions of different seats in the left-right direction of the vehicle to ensure that the connecting shaft 45 can be adapted to seats of different lengths. Moreover, the types of the connecting shaft 45 can be reduced, which is convenient for material management.
[0049] Optionally, as shown in Figure 1 Both ends of the seat cushion structure 2 in the left-right direction are provided with handles 42, and both ends of the connecting shaft 45 respectively pass through the corresponding angle adjusters 41 and are connected to the corresponding handles 42. In this way, the left and right sides of the seat cushion structure 2 are respectively locked by using the two handles 42 to ensure that the seat cushion structure 2 is evenly stressed when locked and the locking effect is better.
[0050] Further, a transition bracket is provided at one end of the seat cushion structure 2 away from the backrest structure 1, and the first mounting bracket 43 is detachably connected to the transition bracket. In this way, different transition brackets can be set according to the seats of different vehicle models, so that the manual folding mechanism 4 can be adapted to the seats of different vehicle models, which is convenient for realizing modular layout.
[0051] Optionally, as shown in Figure 2 and Figure 3As shown, the first mounting bracket 43 includes a first connecting plate 431 and a second connecting plate 432 that are integrally formed respectively. The first connecting plate 431 and the second connecting plate 432 are detachably connected. The seat cushion structure 2 is connected to the first connecting plate 431, and the second connecting plate 432 and the second mounting bracket 44 are rotatably connected through an angle adjuster 41.
[0052] In this alternative embodiment, both the first connecting plate 431 and the second connecting plate 432 are independent parts. Among them, the first connecting plate 431 is generally a flat plate structure arranged horizontally, which enables the setting of the first connecting plate 431 to increase the connection area between the transition bracket of the seat cushion structure 2 and the first mounting bracket 43, and improve the firmness of the connection between the two. Moreover, the first connecting plate 431 is usually detachably connected to the second connecting plate 432 by means of bolt connection, etc., and is detachably connected to the transition bracket of the seat cushion structure 2 by means of bolt connection to facilitate disassembly, assembly and later maintenance operations. The inner tooth plate (outer tooth plate) of the angle adjuster 41 is usually fixedly connected to the second connecting plate 432 by means of clamping, and the outer tooth plate (inner tooth plate) of the angle adjuster 41 is usually fixedly connected to the second mounting bracket 44 by means of welding. In this way, the first mounting bracket 43 is arranged to include the first connecting plate 431 and the second connecting plate 432 that are connected to each other and are integrally formed respectively, so as to facilitate the segmented manufacturing of the first mounting bracket 43 with a complex structure, thereby reducing the production difficulty of the first mounting bracket 43 and further improving the production efficiency.
[0053] Optionally, in combination with Figure 2 and Figure 3 As shown, the second mounting bracket 44 includes a third connecting plate 441 and a fourth connecting plate 442 that are integrally formed respectively. The third connecting plate 441 and the fourth connecting plate 442 are detachably connected. The first mounting bracket 43 and the third connecting plate 441 are rotatably connected through an angle adjuster 41, and the fourth connecting plate 442 is used for connecting to the vehicle body floor.
[0054] In this alternative embodiment, both the third connecting plate 441 and the fourth connecting plate 442 are independent parts. Among them, the third connecting plate 441 is generally a vertically arranged plate-like structure and is located above the fourth connecting plate 442. This enables the setting of the third connecting plate 441 to increase the distance between the angle adjuster 41 and the vehicle body floor, thereby increasing the movement space when the first mounting bracket 43 rotates together with the angle adjuster 41 and preventing interference. Moreover, the fourth connecting plate 442 is generally detachably connected to the third connecting plate 441 by means such as bolt connection and is detachably connected to the vehicle body floor by bolt connection to facilitate disassembly, assembly, and later maintenance operations. The inner tooth plate (outer tooth plate) of the angle adjuster 41 is generally fixedly connected to the third connecting plate 441 by welding, and the outer tooth plate (inner tooth plate) of the angle adjuster 41 is generally fixedly connected to the second connecting plate 432 of the first mounting bracket 43 by snap connection. In this way, the second mounting bracket 44 is provided to include the third connecting plate 441 and the fourth connecting plate 442 that are interconnected and are respectively integral structures, so as to facilitate the segmented manufacturing of the second mounting bracket 44 with a complex structure, thereby reducing the production difficulty of the second mounting bracket 44 and further improving the production efficiency.
[0055] Optionally, as shown in combination with Figure 3 , Figure 4 and Figure 5 , the second mounting bracket 44 is provided with a first limiting structure 443, the handle 42 is provided with a second limiting structure 421, and the handle 42 has an unlocking position and a locking position; when the handle 42 is in the locking position, one end of the first limiting structure 443 abuts against the second limiting structure 421, and the angle adjuster 41 is in the locked state, and the seat cushion structure 2 hovers at the current folding angle; when the handle 42 is rotated to the unlocking position, the other end of the first limiting structure 443 abuts against the second limiting structure 421, and the angle adjuster 41 is in the unlocked state.
[0056] In this alternative embodiment, the second limiting structure 421 generally includes a first limiting surface 4211 and a second limiting surface 4212 that are circumferentially spaced along the adjuster 41. The first limiting structure 443 is located between the first limiting surface 4211 and the second limiting surface 4212. When the handle 42 is rotated so that the first limiting structure 443 abuts against the first limiting surface 4211, the adjuster 41 is in the unlocked state. At this time, the seat cushion structure 2 is also unlocked. When the handle 42 is rotated so that the first limiting structure 443 abuts against the second limiting surface 4212, the adjuster 41 is in the locked state. At this time, the seat cushion structure 2 is also locked and hovers at the current folding angle. In this way, by providing the first limiting structure 443 and the second limiting structure 421 on the second mounting bracket 44 and the handle 42 respectively, the rotation angle of the handle 42 is restricted by the mutual cooperation between the first limiting structure 443 and the second limiting structure 421, so as to position the unlocking position and the locking position of the handle 42, and ensure that the adjuster 41 and the seat cushion structure 2 can be accurately unlocked or locked when the handle 42 is rotated in place.
[0057] Optionally, as shown in combination with Figure 3 , Figure 4 and Figure 5 , one of the first limiting structure 443 and the second limiting structure 421 is a limiting groove extending circumferentially along the adjuster 41, and the other is a limiting protrusion. The limiting protrusion is inserted into the limiting groove, and the limiting protrusion is used to move circumferentially along the adjuster 41 relative to the limiting groove and is used to abut against the two groove walls at both circumferential ends of the limiting groove along the adjuster 41.
[0058] In this alternative embodiment, when the second limiting structure 421 is a limiting protrusion, the first limiting surface 4211 and the second limiting surface 4212 are respectively the end faces at both circumferential ends of the limiting protrusion along the adjuster 41. When the second limiting structure 421 is a limiting groove, the first limiting surface 4211 and the second limiting surface 4212 are respectively the two groove walls at both circumferential ends of the limiting groove along the adjuster 41. In this way, using the limiting groove and the limiting protrusion as the first limiting structure 443 and the second limiting structure 421 can simplify the structures of the second mounting bracket 44 and the handle 42, reduce the manufacturing difficulty, and improve the production efficiency.
[0059] Optionally, as shown in combination with Figure 7 , the folding seat frame further includes a floor lock mechanism 5. The seat cushion structure 2 is used to be fixed to the vehicle body floor through the floor lock mechanism 5, and the manual folding mechanism 4 is used to adjust the folding angle of the seat cushion structure 2 when the floor lock mechanism 5 is unlocked. The floor lock mechanism 5 is generally a prior art, and its specific structure will not be described in detail here.
[0060] In this way, when it is necessary to adjust the backrest structure 1, the floor lock mechanism 5 can be used to fix the seat cushion structure 2 on the vehicle body floor to ensure that the seat cushion structure 2 will not fold over together with the backrest structure 1. When it is necessary to fold the seat cushion structure 2 forward towards the vehicle front, the floor lock mechanism 5 can be unlocked first, and then the handle 42 can be rotated to unlock the angle adjuster 41, so that the seat cushion structure 2 can fold around the rotation axis of the angle adjuster 41, thereby realizing the forward folding of the seat cushion structure 2.
[0061] Furthermore, as shown in Figure 7 , the floor lock mechanism 5 is connected to one end of the seat cushion structure 2 that is connected to the backrest structure 1. Among them, the floor lock mechanism 5 is usually arranged at the rear end of the seat cushion structure 2 and usually there are two. In this way, while the front end of the seat cushion structure 2 can be supported by the manual folding mechanism 4, the floor lock mechanism 5 can also provide a supporting force at the rear end of the seat cushion structure 2, so that both the front end and the rear end of the seat cushion structure 2 can be supported, thereby ensuring that the overall force on the seat cushion structure 2 is uniform and the load-bearing capacity is higher.
[0062] A vehicle provided by an embodiment of the present invention includes the folding seat frame as described above.
[0063] The beneficial effects of the vehicle in this embodiment compared with the prior art are the same as those of the above-mentioned folding seat frame, and will not be elaborated here.
[0064] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will all fall within the protection scope of the present invention.
Claims
1. A foldable seat frame, characterized in that: The invention comprises a backrest structure (1), a seat cushion structure (2), an adjustment structure (3) and a manual folding mechanism (4); one end of the seat cushion structure (2) is rotatably connected to the backrest structure (1) via the adjustment structure (3), and the other end is connected to the vehicle body floor via the manual folding mechanism (4); the adjustment structure (3) is used to adjust the folding angle of the backrest structure (1) and to lock the backrest structure (1) at the current folding angle; the manual folding mechanism (4) is used to unlock or lock the seat cushion structure (2) by rotation; the seat cushion structure (2) can be folded around the rotation axis of the manual folding mechanism (4) when unlocked, and is limited to the current folding angle when locked.
2. The foldable seat frame according to claim 1, characterized in that: The folding angles of the backrest structure (1) and the seat cushion structure (2) are between 0° and 180°.
3. The foldable seat frame according to claim 1, characterized in that: The manual folding mechanism (4) comprises a recliner (41), a handle (42), a first mounting bracket (43) and a second mounting bracket (44); the first mounting bracket (43) and the second mounting bracket (44) are rotatably connected via the recliner (41); the first mounting bracket (43) is connected to the seat cushion structure (2); the second mounting bracket (44) is used to be connected to the vehicle body floor; the handle (42) is coaxially connected to the recliner (41) and is located on a side of the recliner (41) facing the outside of the vehicle; the handle (42) is used to drive the recliner (41) to rotate so as to unlock or lock the recliner (41); and the rotation axis of the recliner (41) is parallel to the left-right direction of the vehicle.
4. The foldable seat frame according to claim 3, characterized in that: The manual folding mechanism (4) also includes a connecting shaft (45) coaxially arranged with the angle adjuster (41); the seat cushion structure (2) is provided with the angle adjuster (41), the first mounting bracket (43) and the second mounting bracket (44) at both ends along the left and right directions; and the first mounting bracket (43) and the second mounting bracket (44) located at the same end are rotatably connected through the corresponding angle adjuster (41); one end of the connecting shaft (45) is connected to one of the angle adjusters (41), and the other end passes through the other angle adjuster (41) and is connected to the handle (42).
5. The foldable seat frame according to claim 4, characterized in that: The seat cushion structure (2) is provided with handles (42) at both ends along the left-right direction, and both ends of the connecting shaft (45) respectively pass through the corresponding angle adjusters (41) and are connected to the corresponding handles (42).
6. The foldable seat frame according to claim 3, characterized in that: The second mounting bracket (44) is provided with a first limiting structure (443), the handle (42) is provided with a second limiting structure (421), and the handle (42) has an unlocking position and a locking position; when the handle (42) is in the locking position, the second limiting structure (421) abuts against one end of the first limiting structure (443), and the angle adjuster (41) is in a locked state, and the seat cushion structure (2) is suspended at a current folding angle; when the handle (42) is rotated to the unlocking position, the second limiting structure (421) abuts against the other end of the first limiting structure (443), and the angle adjuster (41) is in an unlocking state.
7. The foldable seat frame according to claim 6, characterized in that: One of the first limiting structure (443) and the second limiting structure (421) is a limiting groove extending along the circumference of the angle adjuster (41), and the other is a limiting protrusion, the limiting protrusion is inserted into the limiting groove, and the limiting protrusion is used to move relative to the limiting groove along the circumference of the angle adjuster (41), and is used to abut against two groove walls at both ends of the limiting groove along the circumference of the angle adjuster (41).
8. The foldable seat frame according to claim 3, characterized in that: The first mounting bracket (43) comprises a first connecting plate (431) and a second connecting plate (432) which are respectively integral structures, the first connecting plate (431) and the second connecting plate (432) are detachably connected, the seat cushion structure (2) is connected to the first connecting plate (431), and the second connecting plate (432) and the second mounting bracket (44) are rotatably connected via the angle adjuster (41); And / or, the second mounting bracket (44) includes a third connecting plate (441) and a fourth connecting plate (442) which are respectively integral structures, the third connecting plate (441) and the fourth connecting plate (442) are detachably connected, the first mounting bracket (43) and the third connecting plate (441) are rotatably connected via the angle adjuster (41), and the fourth connecting plate (442) is used to be connected to the vehicle body floor.
9. The foldable seat frame according to claim 1, characterized in that: It also comprises a floor locking mechanism (5), the seat cushion structure (2) being used to be fixed to the vehicle body floor via the floor locking mechanism (5), and the manual folding mechanism (4) being used to adjust the folding angle of the seat cushion structure (2) when the floor locking mechanism (5) is unlocked.
10. A vehicle, characterized in that: It comprises a foldable seat frame as described in any one of claims 1-9.