Multifunctional back folding storage seat framework

Abstract

The utility model relates to the technical field of automobile seat, concretely relates to a multifunctional back folding storage seat framework, which comprises a base provided with a mounting platform and a storage cavity formed in one side of the mounting platform, a turnover module horizontally arranged on the base, the turnover module being provided with a turnover frame capable of being turned over and a driving unit capable of driving the turnover frame to turn over, a folding module horizontally arranged above the turnover frame and hingedly connected with the turnover frame at the lower end, and a supporting module horizontally hingedly arranged on the top of the folding module, the supporting module being provided with a seat frame, a backrest frame and an adjusting unit capable of adjusting the angle of the backrest frame, the utility model can not only fold and adjust the seat in multiple dimensions, but also completely hide the seat in the trunk after storage.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, specifically to a multifunctional, foldable, and retractable seat frame. Background Technology

[0002] With the rapid development of the automotive industry, consumers have placed higher demands on the utilization rate and comfort of the vehicle's interior space, especially in multi-purpose vehicles (such as MPVs and SUVs). The design of the rear seat structure has become a crucial factor affecting the flexibility and functionality of the vehicle's space. Currently, most models on the market are equipped with rear seats that are either fixed or simply folding, offering limited functionality and making it difficult to achieve quick and flexible space layout changes. This is particularly true when it is necessary to temporarily expand the trunk capacity or switch to a completely flat storage space; traditional seat structures have significant limitations in terms of flipping operation, storage efficiency, and aesthetic integrity.

[0003] Meanwhile, existing rear seats generally lack the ability to adjust backrest angle, seat height, and sliding rail travel in multiple ways, making it difficult for users to obtain a good human-machine comfort experience during long journeys or various usage scenarios. In addition, the current rear seats usually have the following problems in storage: First, they cannot be completely hidden under the floor after folding, affecting the overall aesthetics of the vehicle and the effective volume of the trunk; second, the storage process is complicated, requiring multiple manual operations, resulting in poor ease of use; third, some structures do not consider automatic linkage and modular integration, making it difficult to adapt to the development trend of intelligent and convenient modern seats. Utility Model Content

[0004] To address the aforementioned issues, a multifunctional, foldable, and retractable seat frame is provided. This new seat frame structure combines electric adjustment, multi-dimensional folding, and automatic storage functions with lightweight, modular design, and high space utilization, thereby solving the technical problems of insufficient functionality, limited adjustment range, and low storage efficiency of existing rear seats.

[0005] To address the problems of existing technologies, this utility model provides a multifunctional, foldable, and retractable seat frame, comprising: a base, i.e., the seat's vehicle mounting environment, having an mounting platform and a storage cavity opened on one side of the mounting platform; a flip module, horizontally disposed on the base; the flip module having a flip frame capable of flipping and an adjustment unit capable of driving the flip frame to flip; a folding module, horizontally disposed above the flip frame and hinged at its lower end to the flip frame; and a support module, horizontally hinged to the top of the folding module, the support module having a seat frame frame, a backrest frame, and an adjustment unit capable of adjusting the angle of the backrest frame.

[0006] Preferably, the flipping module further includes a fixed hinge unit capable of limiting the rear end of the flipping frame and a locking unit capable of locking the front end of the flipping frame; the fixed hinge unit is fixedly disposed in the storage cavity on one side near the mounting platform; the locking unit is centrally disposed on the mounting platform at one end away from the storage cavity.

[0007] Preferably, the hinge unit is provided with a hinge shaft and a fixed base for fixing the hinge shaft; the rear end of the flipping frame is hinged to the hinge shaft; the drive unit is fixedly disposed on one side of the fixed base in an inclined state and the drive end is hinged to the rear end of the flipping frame.

[0008] Preferably, the locking unit consists of a ground lock assembly and a bolt; the ground lock assembly is fixedly disposed below the front end of the flipping frame; the bolt is fixedly disposed on the mounting platform and is disposed corresponding to the ground lock assembly.

[0009] Preferably, the folding module is provided with a support arm that can lift the support module and a linear actuator that can change the support angle of the support arm.

[0010] Preferably, the folding module further includes a pivot, a first hinge seat, and a second hinge seat; four support arms are provided, arranged in a rectangular array above the flipping frame; the bottom and top ends of the four support arms are fixedly connected to the first hinge seat, the upper surface of the flipping frame, and the lower surface of the support module, respectively; the pivot is horizontally positioned across the middle of the two support arms near the front end of the flipping frame; the linear actuator is fixedly mounted on the flipping frame via the second hinge seat, and its driving end is hinged to the pivot.

[0011] Preferably, the support module further includes a toothed bar and a hinge member capable of hinged between the seat frame and the backrest frame; two hinge members are provided, and the two hinge members are fixedly disposed at the rear end of the seat frame; the backrest frame is disposed across the two hinge members and is hinged to the two hinge members.

[0012] Preferably, the adjustment unit includes a rack and a driver that rotates circumferentially along the rack; the rack is fixedly arranged across the two hinges and is coaxially arranged with the hinge point of the backrest frame and the hinges; the driver is fixedly arranged on the backrest frame and its driving end meshes with the rack.

[0013] The advantages of this utility model compared to the prior art are:

[0014] 1. This utility model realizes the function of rear-folding storage of the seat frame through the hinge connection between the flipping frame and the installation platform and the linkage control of the drive unit. When the seat is not in use, the entire seat frame can be flipped into the hidden storage cavity, which significantly improves the utilization rate and tidiness of the vehicle interior space.

[0015] 2. This utility model, through the cooperation of a folding module and a support module, enables automatic adjustment of the support height according to different usage scenarios, meeting the comfort and stability requirements under various postures and working conditions. Simultaneously, the adjustable frame and seat frame are connected by a triangularly structured hinge, achieving a high-strength hinge connection while improving the stability and fatigue resistance of the frame structure during flipping and storage. The overall design combines electric control, mechanical flipping, and structural locking, giving the seat frame multiple functions such as automatic flipping, convenient adjustment, stable support, and concealed storage, effectively overcoming the problems of traditional seat structures such as limited functionality, difficult storage, and poor adjustment precision. Attached Figure Description

[0016] Figure 1 It is a multi-functional, fold-back, three-dimensional seat frame with the base removed. Figure 1 .

[0017] Figure 2 It is a multi-functional, fold-back, three-dimensional seat frame with the base removed. Figure 2 .

[0018] Figure 3 This is a side view of a multifunctional, foldable, retractable seat frame in its unfolded state with the base removed.

[0019] Figure 4 This is a side view of a multi-functional, foldable seat frame with the base removed. Figure 1 .

[0020] Figure 5 This is a side view of a multi-functional, foldable seat frame with the base removed. Figure 2 .

[0021] Figure 6 This is a side view of a multi-functional, foldable seat frame with the base removed. Figure 3 .

[0022] Figure 7 This is a side view of a multi-functional, foldable seat frame with the base removed. Figure 4 .

[0023] Figure 8 This is a side view of a multifunctional, foldable, and retractable seat frame in its folded-back state.

[0024] The numbers on the map are:

[0025] 1-Base; 11-Mounting platform; 12-Storage cavity;

[0026] 2-Flipping module; 21-Flipping frame; 22-Drive unit; 23-Hinge unit; 231-Hinge shaft; 232-Fixed base; 24-Locking unit; 241-Ground lock assembly; 242-Locking bolt;

[0027] 3-Folding module; 31-Support arm; 32-Linear actuator; 33-Rotating shaft; 34-First hinge seat; 35-Second hinge seat;

[0028] 4-Support module; 41-Seat frame skeleton; 42-Backrest skeleton; 43-Adjustment unit; 431-Rack rack; 432-Driver; 44-Hinge. Detailed Implementation

[0029] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0030] See Figures 1 to 8 As shown: A multifunctional, foldable seat frame includes: a base 1, which is the vehicle body mounting environment of the seat, having a mounting platform 11 and a storage cavity 12 opened on one side of the mounting platform 11; a flip module 2, horizontally disposed on the base 1; the flip module 2 has a flip frame 21 that can be flipped and adjusted, and a drive unit 22 that can drive the flip frame 21 to flip; a folding module 3, horizontally disposed above the flip frame 21 and hinged at its lower end to the flip frame 21; and a support module 4, horizontally hinged to the top of the folding module 3, the support module 4 having a seat frame 41 and a backrest frame 42, and an adjustment unit 43 that can adjust the angle of the backrest frame 42.

[0031] The base 1 is specifically the floor of the carriage.

[0032] When the support module 4 needs to be folded and stored, the external power supply first drives the adjustment unit 43 to switch the backrest frame 42 from the use state to the folded state, that is, folding it along the preset rotation axis 33 towards the seat frame frame 41, and continuing to fold until the backrest frame 42 and the seat frame frame 41 are basically parallel, at which point it stops automatically; then the folding module 3 is driven to adjust the height of the support module 4 in conjunction, so that the support structure smoothly transitions from the highest support position to the lowest support limit, forming a compressed support unit; then the limiting mechanism of the support module 4 is unlocked, and the flipping frame 21 is driven by the drive unit 22 to rotate and flip 180° around the pivot 33 on the mounting platform 11. After the flipping is completed, the support module 4 is stored inside the set storage cavity 12, and the bottom of the flipping frame 21 after flipping is parallel to the surface of the mounting platform 11, ensuring that the seat is level with the floor after storage, improving space utilization and aesthetics.

[0033] Through the combination of the above structure and control logic, the fully automated folding and flipping storage operation of the seat support module 4 is realized, which improves the convenience of storage and the flexibility of cabin layout, while ensuring that the platform is flush after flipping, meeting the needs of a flat rear cabin and multi-functional applications.

[0034] See Figure 5 As shown: The flipping module 2 also includes a fixed hinge unit 23 that can limit the rear end of the flipping frame 21 and a locking unit 24 that can lock the front end of the flipping frame 21; the fixed hinge unit 23 is fixedly disposed in the storage cavity 12 on the side close to the mounting platform 11; the locking unit 24 is centrally disposed on the mounting platform 11 at the end away from the storage cavity 12.

[0035] By structurally defining and trajectory-constraining the installation position of the hinge unit 23, it is possible to ensure reliable axial swing of the flipping frame 21 between its two ends and the mounting platform 11 and the storage cavity 12, respectively, thereby achieving precise switching between the use state and the storage state of the flipping frame 21. This allows the flipping frame 21 to remain stable and smooth when flipping 180°, and automatically align at the end of the flip.

[0036] The locking unit 24 is located at the free end of the flip frame 21, i.e., the end furthest from the hinge end, and is used to effectively lock the free end of the flip frame 21 when it is flipped onto the surface of the mounting platform 11 and in the unfolded use state. This locking structure prevents the flip frame 21 from shaking or swaying under load, ensuring that the seat structure has good stability and safety after flipping.

[0037] By combining the hinge unit 23 and the locking unit 24, high-precision controllable switching and stable locking of the tilting frame 21 in the unfolded and folded states are achieved.

[0038] See Figure 4 As shown: The hinge unit 23 is provided with a hinge shaft 231 and a fixed seat 232 for fixing the hinge shaft 231; the rear end of the flipping frame 21 is hinged to the hinge shaft 231; the drive unit 22 is fixedly disposed on one side of the fixed seat 232 in an inclined state and the drive end is hinged to the rear end of the flipping frame 21.

[0039] The drive unit 22 specifically consists of an electric push rod and a drive arm; the electric push rod is fixedly mounted at one end of the fixed base 232 in an inclined state, and the drive arm is coaxially fixedly mounted on one side of the rear end of the flipping frame 21 and hinged to the drive end of the electric push rod; the drive unit 22 is not limited to the above-mentioned drive method and can also be other drive methods, so as to achieve the purpose of driving the flipping frame 21 to flip circumferentially along the hinge axis 231.

[0040] When the flipping frame 21 needs to be driven to perform an automatic flipping operation, an external power supply is first connected to start the drive unit 22. During the operation, the output end of the drive unit 22 transmits torque to the flipping frame 21 connected to it, thereby driving the flipping frame 21 to rotate circumferentially around the hinge shaft 231 set at its bottom. Under the constraint of the hinge, the flipping frame 21 flips along a predetermined path until it flips to a set angle position, such as flipping 180° into the storage cavity 12 or rotating back to the unfolded use position, and then stops, forming a stable positioning state.

[0041] See Figure 6 As shown: The locking unit 24 consists of a ground lock assembly 241 and a bolt 242; the ground lock assembly 241 is fixedly installed below the front end of the flip frame 21; the bolt 242 is fixedly installed on the mounting platform 11 and is correspondingly installed to the ground lock assembly 241.

[0042] When the flipping frame 21 is flipped from the storage cavity 12 and adjusted to the working position of the mounting platform 11 under the action of the drive unit 22, the ground lock assembly 241 fixedly installed at the front end of the flipping frame 21 will gradually move towards the locking bolt 242 on one side of the mounting platform 11 during the flipping process. When the flipping action is close to the end position, the ground lock assembly 241 and the locking bolt 242 are precisely aligned and automatically engage in the end stroke, thereby reliably locking the front end of the flipping frame 21 to the surface of the mounting platform 11.

[0043] By setting the automatic docking of the ground lock assembly 241 and the locking bolt 242, the automatic positioning and stable locking of the tilting frame 21 after it is tilted to the working position are realized, so as to prevent the tilting frame 21 from shifting position due to external force or inertia.

[0044] See Figure 4 As shown: The folding module 3 is provided with a support arm 31 that can support the support module 4 and a linear actuator 32 that can change the support angle of the support arm 31.

[0045] When further height adjustment of the support module 4 is required to achieve unfolding support or folding storage functions, an external power supply is first connected to start the linear actuator 32. The output shaft of the linear actuator 32 extends or retracts axially under electric drive, synchronously driving the connected support arm 31 to move. By adjusting the support arm 31, the vertical height of the support module 4 relative to the mounting platform 11 is changed, achieving adaptive height adjustment of the seat frame in different usage scenarios. The specific adjustment accuracy of the support height is controlled in real-time by the control system through the extension and retraction stroke of the output shaft of the linear actuator 32, thereby ensuring the stability and consistency of the support state.

[0046] See Figure 4 As shown: The folding module 3 also includes a pivot 33, a first hinge seat 34, and a second hinge seat 35; four support arms 31 are provided, and the four support arms 31 are arranged in a rectangular array above the flip frame 21; the bottom and top ends of the four support arms 31 are fixedly connected to the first hinge seat 34, the upper surface of the flip frame 21, and the lower surface of the support module 4, respectively; the pivot 33 is arranged across the middle of the two support arms 31 near the front end of the flip frame 21; the linear driver 32 is fixedly mounted on the flip frame 21 through the second hinge seat 35 and its driving end is hinged to the pivot 33.

[0047] When dynamic adjustment of the longitudinal height of the support module 4 is required, an external power supply is first connected to drive the linear actuator 32. The output shaft of the linear actuator 32 extends axially in the driving state and simultaneously drives the rotating shaft 33. During operation, the rotating shaft 33 drives the support arms 31 connected to its two ends to swing around the hinge point connecting to the tilting frame 21, thereby causing the two support arms 31 at the front end of the support module 4 to rise or fall simultaneously. This achieves continuous adjustment and precise control of the support height of the entire support module 4.

[0048] See Figure 5As shown: The support module 4 further includes a toothed bar 431 and a hinge member 44 that can hinge the seat frame 41 and the backrest frame 42; two hinge members 44 are provided, and the two hinge members 44 are fixedly disposed at the rear end of the seat frame 41; the backrest frame 42 is disposed across the two hinge members 44 and is hinged to the two hinge members 44.

[0049] The hinge 44 is generally triangular in shape. Two base corners of the triangle are fixedly connected to the corresponding connecting parts of the seat frame 41, while the remaining apex points vertically upwards and is hinged to the backrest frame 42. This triangular hinge structure establishes a stable hinged connection between the seat frame 41 and the backrest frame 42, effectively increasing the hinge gap between them. Because the hinge 44 is triangular, it ensures structural strength and stability, allowing the backrest frame 42 to fold smoothly to a position parallel to the seat frame 41 in its folded state, avoiding interference between the frames due to limited folding space. Furthermore, the increased hinge gap provides reasonable space for the addition of outer covering material, preventing excessive thickness of the outer covering from affecting the normal folding action of the frame.

[0050] See Figure 1 As shown: The adjustment unit 43 is provided with a rack 431 and a driver 432 that rotates circumferentially along the rack 431; the rack 431 is fixedly arranged across the two hinges 44 and is coaxially arranged with the backrest frame 42 and the hinge point of the hinges 44; the driver 432 is fixedly arranged on the backrest frame 42 and its driving end meshes with the rack 431.

[0051] When the folding or unfolding angle of the backrest frame 42 needs to be dynamically adjusted, an external power source is first connected to drive the actuator 432. After the actuator 432 is activated, it generates output torque, which in turn drives the gear assembly located at its output end to rotate. This gear assembly meshes with a rack 431 structure arranged along the backrest frame 42. The circumferential rotation of the gear assembly synchronously drives the rack 431 to perform linear displacement or rotation, thereby indirectly driving the backrest frame 42 to achieve precise adjustment of the folding or unfolding angle around the hinge point. Through the controllable output of the actuator 432 and the transmission linkage of the gear-rack 431 structure, high-precision adjustment of the backrest frame 42's tilt angle can be achieved.

[0052] This invention not only allows for multi-dimensional folding and adjustment of the seats, but also enables them to be completely hidden in the trunk after storage.

[0053] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A multifunctional, foldable, and foldable seat frame, characterized in that, include: The base, i.e. the vehicle body mounting environment of the seat, is provided with a mounting platform and a storage cavity opened on one side of the mounting platform; A flipping module is horizontally mounted on the base; the flipping module is equipped with a flipping frame that can be flipped and adjusted, and a drive unit that can drive the flipping frame to flip. The folding module is horizontally positioned above the flipping frame and its lower end is hinged to the flipping frame. A support module is horizontally hinged to the top of the folding module. The support module has a seat frame skeleton, a backrest skeleton, and an adjustment unit that can adjust the angle of the backrest skeleton. The flipping module also includes a fixed hinge unit that can limit the rear end of the flipping frame and a locking unit that can lock the front end of the flipping frame. The fixed hinge unit is fixedly installed inside the storage cavity on the side near the mounting platform; The locking unit is centrally located at one end of the mounting platform away from the storage cavity; The folding module is equipped with a support arm that can lift the support module and a linear actuator that can change the support angle of the support arm. The support module also includes a toothed bar and a hinge that can hinge the seat frame and the backrest frame. Two hinges are provided, and the two hinges are fixedly disposed at the rear end of the seat frame frame; The backrest frame is positioned across the space between two hinge members and is hinged to both hinge members.

2. The multifunctional, foldable, and foldable seat frame according to claim 1, characterized in that, The hinge unit is provided with a hinge shaft and a fixing seat for fixing the hinge shaft. The rear end of the tilting frame is hinged to the hinge shaft; The drive unit is fixedly mounted on one side of the fixed base in an inclined state, and the drive end is hinged to the rear end of the tilting frame.

3. A multifunctional, foldable, and retractable seat frame according to claim 2, characterized in that, The locking unit consists of a ground lock assembly and a bolt; The ground lock assembly is fixedly installed below the front end of the flip frame; The bolt is fixedly installed on the mounting platform and is configured correspondingly to the floor lock assembly.

4. A multifunctional, foldable, and retractable seat frame according to claim 1, characterized in that, The folding module also includes a pivot, a first hinge base, and a second hinge base; The support arm is provided in four parts, which are arranged in a rectangular array above the flipping frame; the bottom and top ends of the four support arms are fixedly connected to the upper surface of the flipping frame and the lower surface of the support module through the first hinge seat, respectively. The pivot is positioned across the middle of the two support arms near the front end of the tilting frame; The linear actuator is fixedly mounted on the tilting frame via the second hinge seat, and its drive end is hinged to the rotating shaft.

5. A multifunctional, foldable, and retractable seat frame according to claim 1, characterized in that, The adjustment unit is equipped with a rack and a driver that rotates circumferentially along the rack; The toothed bar is fixedly straddling between the two hinge members and is coaxially arranged with the hinge point of the backrest frame and the hinge member. The driver is fixedly mounted on the backrest frame and its driving end meshes with the gear.

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